Optical module having unlocking early warning function, and use method

Abstract

The present invention provides an optical module having an unlocking early warning function, and a use method. A lever is arranged on a base of the optical module, an inclined groove is formed in the lever, a pull handle for controlling the optical module to be pulled and inserted matches the inclined groove of the lever, upwarping or sinking of a chamfer on the lever is controlled by controlling the movement of the pull handle relative to the base, and the chamfer is used for matching a notch of a metal shielding cage to fix and unlock the optical module, such that the optical module is controlled to be fixed and unlocked by controlling the pull handle; in addition, a contact is further arranged at the lower end of the chamfer, and when the chamfer of the lever sinks, the contact is electrically connected to a PCB in the optical module, such that unlocking early warning is given in advance before the optical module is completely pulled out, and signal loss caused by mistaken pulling of the optical module is prevented.

Description

Optical module with unlocking warning function and usage method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority from the following patent applications:

[0003] (1) A Chinese patent application entitled “An optical module with unlocking warning function and its use method” was submitted to the China Patent Office on August 30, 2023 with application number 2023111207989. Technical Field

[0004] The present invention belongs to the field of optical communications, and in particular relates to an optical module with an unlocking warning function and a use method thereof. Background Art

[0005] In the prior art, when an optical module is inserted into a slot of a metal shielding cage for normal data transmission, if the optical module is suddenly pulled out due to external force, the host usually cannot react in time, and signal loss may be caused due to the wrong pull-out.

[0006] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in this technical field.

[0007] Application Contents

[0008] The technical problem to be solved by the present invention is how to promptly warn the host when an optical module may be accidentally unplugged, thereby caching and interrupting the signal in advance to avoid signal loss.

[0009] The present invention adopts the following technical solutions:

[0010] In a first aspect, an optical module with an unlock warning function includes: a handle 1, a lever 2, a base 3, and a PCB assembly 4, wherein:

[0011] The handle 1 is connected to the base 3 in a sliding guide manner, and a connecting rod 12 is provided on the handle 1;

[0012] The lever 2 is axially connected to the base 3; the first end of the lever 2 is provided with an inclined groove 21, and the connecting rod 12 is located in the inclined groove 21; the upper surface of the second end of the lever 2 is provided with a chamfer 22, and the chamfer 22 is used to cooperate with the notch of the metal shielding cage to lock, and the lower surface of the second end of the lever 2 is provided with a first contact 23;

[0013] The PCB assembly 4 is disposed inside the base 3 and below the second end of the lever 2;

[0014] When the handle 1 is guided outward relative to the base 3, the connecting rod 12 lifts the upper end of the inclined slot 21, the first end tilts up, the second end sinks, the chamfer 22 is unlocked with the metal shielding cage slot, and the first contact 23 contacts the PCB assembly 4 to issue an unlocking warning.

[0015] Preferably, the PCB assembly 4 includes: a contact platform 41 and a PCB board 42, wherein:

[0016] A second contact 43 is provided on the upper surface of the contact platform 41. The second contact 43 is located below the first contact 23. The second contact 43 is electrically connected to the PCB board 42 via a metal strip 44.

[0017] When the second end sinks, the first contact 23 and the second contact 43 come into contact with each other, and the first contact 23 is electrically connected to the PCB board 42 .

[0018] Preferably, the lever 2 is axially connected to the base 3, specifically comprising:

[0019] The lever 2 is provided with a rotating shaft 24 on both sides;

[0020] One end of the base 3 is an optical interface end 31, which is used for sliding and guiding connection with the handle 1; a clearance cavity 311 is provided on the upper surface of the optical interface end 31, and U-shaped grooves 312 are also provided on both sides of the inner wall of the clearance cavity 311;

[0021] The lever 2 is disposed inside the yield cavity 311 , the rotating shaft 24 is located in the U-shaped groove 312 , the first end of the lever 2 faces away from the PCB assembly 4 , and the second end of the lever 2 faces toward the PCB assembly 4 .

[0022] Preferably, the first end of the lever 2 is provided with an inclined slot 21, specifically comprising:

[0023] The inclined groove 21 is provided on the end surface of the first end of the lever 2 and communicates with the two side surfaces of the lever 2. The depth of the inclined groove 21 extends toward the middle of the lever 2. The inclined groove 21 is inclined downward relative to the horizontal plane.

[0024] When the handle 1 is guided and moved relative to the base 3 , the connecting rod 12 slides in the inclined groove 21 , driving the first end of the lever 2 to tilt upward or downward.

[0025] Preferably, the handle 1 is connected to the base 3 in a sliding guide manner, specifically comprising:

[0026] One end of the handle 1 is a frame 11, and the frame 11 is socketed with the optical interface end 31 of the base 3;

[0027] The retaining walls 111 are provided on both sides of the upper end surface of the frame 11, and the guide grooves 313 are provided on both sides of the upper surface of the optical interface end 31. The retaining walls 111 are inserted into the guide grooves 313. When the frame 11 is guided and moved relative to the optical interface end 31, the retaining walls 111 slide in the guide grooves 313.

[0028] Preferably, a spring 314 is further provided between a surface of the retaining wall 111 facing the outside of the handle 1 and an inner wall of the guide slot 313 .

[0029] Preferably, bosses 315 are further provided on both sides of the optical interface end 31, and corresponding guide holes 112 are provided on both sides of the frame 11. When the frame 11 is sleeved on the optical interface end 31, the bosses 315 cooperate with the guide holes 112.

[0030] When the frame 11 is guided relative to the optical interface end 31 , the boss 315 moves in the guide hole 112 .

[0031] Preferably, two support arms 113 are provided facing each other on the inner end faces of the frame 11, and the support arms 113 are inserted into the clearance cavity 311 at the upper end of the optical interface end 31. Through holes are provided on the support arms 113, and the through holes on the two support arms 113 are used to connect with the two ends of the connecting rod 12.

[0032] Preferably, a cover plate 5 is further provided at the upper end of the frame 11, and a matching hole 51 is provided on the end surface of the cover plate 5. A corresponding inclined boss 316 is provided on the end surface of the optical interface end 31. The matching hole 51 cooperates with the inclined boss 316 to fix the cover plate 5.

[0033] The cover plate 5 is used to cover the upper ends of the frame 11 and the lever 2 to prevent the frame 11 and the lever 2 from falling off from the optical interface end 31 .

[0034] In a second aspect, a method for using an optical module with an unlocking warning function is applied to the optical module with the unlocking warning function, comprising:

[0035] The handle 1 is guided outward relative to the base 3, and the connecting rod 12 moves in the inclined groove 21, lifting the first end of the lever 2 and simultaneously sinking the second end of the lever 2. The chamfer 22 on the upper surface of the second end of the lever 2 is unlocked with the notch of the metal shielding cage, and the first contact 23 on the lower surface of the second end of the lever 2 is simultaneously electrically connected to the PCB assembly 4;

[0036] The low level of the first contact 23 pulls down the high level of the PCB component 4, sending an early warning signal to the MCU;

[0037] The MCU performs signal transmission buffering and / or signal transmission interruption.

[0038] The present invention provides an optical module with an unlocking warning function and a method for using the same. A lever is provided on the base of the optical module, and an inclined groove is provided on the lever. A handle for controlling the insertion and removal of the optical module cooperates with the inclined groove of the lever. By controlling the movement of the handle relative to the base, the upward or downward movement of the chamfer on the lever is controlled. The chamfer is used to cooperate with the notch of a metal shielding cage to achieve the fixation and unlocking of the optical module. Therefore, the fixation and unlocking of the optical module are controlled by controlling the handle. On the other hand, a contact is further provided at the lower end of the chamfer. When the chamfer of the lever sinks, the contact is electrically connected to a PCB board in the optical module, thereby issuing an unlocking warning in advance before the optical module is completely removed, thereby preventing signal loss due to accidental removal of the optical module. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0040] FIG1 is a schematic structural diagram of an optical module with an unlocking warning function provided by an embodiment of the present invention;

[0041] FIG2 is a schematic structural diagram of an optical module with an unlocking warning function provided by an embodiment of the present invention, with part of the base hidden;

[0042] FIG3 is a partial schematic diagram of an optical module with an unlocking warning function provided by an embodiment of the present invention;

[0043] FIG4 is a schematic structural diagram of a lever of an optical module with an unlocking warning function provided by an embodiment of the present invention;

[0044] FIG5 is a schematic structural diagram of a lever of another optical module with an unlocking warning function provided by an embodiment of the present invention;

[0045] FIG6 is a schematic structural diagram of another optical module handle with an unlocking warning function provided by an embodiment of the present invention;

[0046] 7 is a schematic structural diagram of a handle and a lever of another optical module with an unlocking warning function provided by an embodiment of the present invention;

[0047] FIG8 is a side view of an optical module with an unlocking warning function provided by an embodiment of the present invention, with part of the base hidden;

[0048] FIG9 is a side view of another optical module with an unlock warning function provided by an embodiment of the present invention, with part of the base hidden;

[0049] FIG10 is a partial schematic diagram of an optical module with an unlock warning function provided by an embodiment of the present invention, with part of the base hidden;

[0050] 11 is a partial schematic diagram of a side view of an optical module with an unlock warning function provided by an embodiment of the present invention, with part of the base hidden;

[0051] 12 is a schematic structural diagram of a lever of another optical module with an unlocking warning function provided by an embodiment of the present invention;

[0052] FIG13 is a partial schematic diagram of an optical module with an unlocking warning function provided by an embodiment of the present invention, with the handle and lever hidden;

[0053] FIG14 is a partial schematic diagram of another optical module with an unlock warning function provided by an embodiment of the present invention, with the handle and lever hidden;

[0054] 15 is a schematic structural diagram of another optical module handle with an unlocking warning function provided in an embodiment of the present invention;

[0055] 16 is a partial schematic diagram of another optical module with an unlocking warning function provided by an embodiment of the present invention with the handle hidden;

[0056] FIG17 is a partial schematic diagram of another optical module with an unlocking warning function provided by an embodiment of the present invention after the lever is hidden;

[0057] FIG18 is a partial schematic diagram of an optical module with an unlock warning function provided by an embodiment of the present invention, with the frame hidden;

[0058] FIG19 is a partial schematic diagram of an optical module with an unlock warning function provided by an embodiment of the present invention with the cover plate hidden;

[0059] 20 is a schematic structural diagram of a cover plate of another optical module with an unlocking warning function provided by an embodiment of the present invention;

[0060] 21 is a schematic structural diagram of an optical interface end of an optical module with an unlocking warning function provided in an embodiment of the present invention;

[0061] 22 is a flowchart of a method for using an optical module with an unlocking warning function according to an embodiment of the present invention;

[0062] The numbers in the figure are as follows: handle 1; frame 11; retaining wall 111; guide hole 112; support arm 113; connecting rod 12; lever 2; inclined groove 21; chamfer 22; first contact 23; rotating shaft 24; base 3; optical interface end 31; clearance cavity 311; U-shaped groove 312; guide slide 313; spring 314; boss 315; inclined boss 316; limiting rotating shaft platform 317; PCB assembly 4; contact platform 41; PCB board 42; second contact 43; metal belt 44; cover plate 5; mating hole 51. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0064] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0065] The terms "first," "second," etc., used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc. may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0066] In this application, unless otherwise specified or limited, the term "connection" should be understood broadly. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean direct connection or indirect connection through an intermediary. Furthermore, the term "coupling" can refer to the manner in which electrical connections are made to achieve signal transmission.

[0067] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0068] Embodiment 1:

[0069] Embodiment 1 of the present invention provides an optical module with an unlock warning function, as shown in Figures 1 and 2, wherein Figure 2 is a schematic diagram of the device after partially removing the base 3, including: a handle 1, a lever 2, a base 3 and a PCB assembly 4, wherein:

[0070] As shown in FIG3 , the handle 1 is connected to the base 3 in a sliding and guiding manner, and a connecting rod 12 is provided on the handle 1 .

[0071] As shown in Figure 3, in this embodiment, the two ends of the base 3 are respectively an optical interface end 31 and an electrical interface end, and the handle 1 is connected to the optical interface end 31 to provide a handle for applying force when plugging and unplugging the optical module; the sliding guide connection can be: while the handle 1 is connected to the base 3, it can slide relative to the base 3 along the length direction of the optical module; when the handle 1 is connected to the optical interface end 31, the connecting rod 12 is located at the upper end of the optical interface end 31.

[0072] As shown in Figures 4 to 8, the lever 2 is axially connected to the base 3; the first end of the lever 2 is provided with an inclined groove 21, and the connecting rod 12 is located in the inclined groove 21; the upper surface of the second end of the lever 2 is provided with a chamfer 22, and the chamfer 22 is used to cooperate with the notch of the metal shielding cage and lock, and the lower surface of the second end of the lever 2 is provided with a first contact 23.

[0073] In this embodiment, the lever 2 is axially connected to the upper end of the optical interface end 31 and can rotate to a certain extent around the axial connection position; the first end of the lever 2 faces the side of the handle 1, and the second end of the lever 2 faces away from the side of the handle 1; as shown in Figures 4 and 5, the inclined groove 21 is provided at the end surface position of the first end of the lever 2, and the groove depth of the inclined groove 21 extends toward the middle position of the lever 2, and the inclined groove 21 is inclined downward at a preset angle compared to the horizontal direction, as shown in Figures 6 and 7, the connecting rod 12 is located inside the inclined groove 21, as shown in Figures 8 and 9, the arrows next to the handle 1 in Figures 8 and 9 are the moving direction of the handle 1, and the arrows of the lever 2 are the corresponding rotation directions. When the handle 1 moves horizontally relative to the optical interface end 31, the connecting rod 12 slides along the extension direction of the inclined groove 21, and at the same time, The inclined groove 21 is inclined downward, so when the handle 1 is pulled outward horizontally relative to the optical interface end 31, the connecting rod 12 abuts against the upper groove surface of the inclined groove 21, and applies an upward force to the upper groove surface of the inclined groove 21, thereby lifting the first end of the lever 2 and sinking the second end of the lever 2, completing the unlocking between the optical module and the metal shielding cage slot; when the handle 1 is moved inward horizontally relative to the optical interface end 31, the connecting rod 12 abuts against the lower groove surface of the inclined groove 21, and applies a downward force to the lower groove surface of the inclined groove 21, the first end of the lever 2 sinks, and the second end of the lever 2 rises; it should be noted that when the handle 1 is connected to the optical interface end 31 and is not subject to external force, the connecting rod 12 is located at the innermost end of the inclined groove 21, at this time the first end of the lever 2 is at the lowest position, and the second end of the lever 2 is at the highest position.

[0074] As shown in Figures 8 and 9, the chamfer 22 is located on the upper surface of the second end. The side of the chamfer 22 facing the inside of the base 3 is an inclined surface, and the side of the chamfer 22 facing the outside of the base 3 is a vertical surface. When an inward force is applied to the handle 1 to insert the optical module into the metal shielding cage slot, the upper groove wall of the metal shielding cage slot advances along the inclined surface of the chamfer 22, pressing the second end of the lever 2 downward. When the chamfer 22 is fully inserted into the metal shielding cage slot, the second end rebounds upward, and the vertical surface of the chamfer 22 abuts the inner wall of the metal shielding cage slot, preventing the optical module from dislodging from the metal shielding cage slot, thereby locking the optical module with the metal shielding cage slot. The first contact 23 is provided on the lower surface of the second end of the lever 2. The first contact 23 is used for subsequent unlocking warning. In this embodiment, the first contact 23 is a conductive metal disc.

[0075] As shown in Figures 4 to 8, the PCB assembly 4 is arranged inside the base 3 and is located below the second end of the lever 2; when the handle 1 is guided outward relative to the base 3, the connecting rod 12 lifts the upper end of the inclined slot 21, the first end is tilted upward, and the second end is sunk, the chamfer 22 is unlocked with the metal shielding cage slot, and the first contact 23 contacts the PCB assembly 4 to issue an unlocking warning.

[0076] As shown in Figures 4 to 8, in addition to the optical interface ends 31 and the electrical interface ends at the two ends of the base 3, the middle position of the base 3 is used to set the PCB assembly 4 and other interface components, and the PCB assembly 4 includes a PCB board 42 and other related components. Taking Figure 8 as an example, the PCB assembly 4 is arranged below the second end of the lever 2. When the second end of the lever 2 is tilted, it means that the optical module is locked with the metal shielding cage slot or the optical module is not inserted, and there is no need for a corresponding unlocking warning. At this time, the first contact 23 is not in contact with the PCB assembly 4, and no electrical connection is established. The PCB assembly 4 will not issue an unlocking warning to the host; and when the second end of the lever 2 sinks, it means that the optical module is being inserted or unlocked. In order to prevent signal loss due to accidental unplugging of the optical module, an unlocking warning is required when the optical module may be unplugged, and the host caches the signal transmission and / or interrupts the signal transmission in advance. Therefore, the first contact 23 is required to contact the PCB assembly 4 to establish an electrical connection. The PCB assembly 4 sends an unlocking warning to the (MCUMicrocontroller The micro control unit (MCU) issues an unlock warning, and the host performs corresponding signal transmission buffering and / or signal transmission interruption.

[0077] It should be noted that the sinking of the second end of lever 2 only represents the unlocking between the optical module and the metal shielding cage slot, and does not mean that the optical module has been pulled out of the metal shielding cage slot. The real pulling out must be the disconnection of the optical interface or electrical interface of the optical module from the corresponding slot, and the unlocking step must be before the disconnection. Therefore, it can ensure that before the disconnection, the host is informed that the optical module may be accidentally pulled out, and the signal transmission is cached and / or interrupted in advance.

[0078] In this embodiment, a lever 2 is provided on the base 3 of the optical module, and an inclined groove 21 is provided on the lever 2. The handle 1 for controlling the insertion and removal of the optical module is matched with the inclined groove 21 of the lever 2. By controlling the movement of the handle 1 relative to the base 3, the upward or downward movement of the chamfer 22 on the lever 2 is controlled, and the chamfer 22 is used to cooperate with the groove of the metal shielding cage to achieve the fixation and unlocking of the optical module. Therefore, the fixation and unlocking of the optical module are controlled by controlling the handle 1. On the other hand, a contact is also provided at the lower end of the chamfer 22. When the chamfer 22 of the lever 2 sinks, as shown in Figure 10, the contact is electrically connected to the PCB board 42 in the optical module, thereby issuing an unlocking warning in advance before the optical module is completely pulled out, thereby preventing signal loss due to accidental removal of the optical module.

[0079] As shown in Figures 8 and 9, the lever 2 of this structure is arranged at a high position of the optical interface end 31 of the optical module. Since the PCB board 42 is usually arranged at a relatively low position of the base 3 of the optical module, it may be difficult for the second end of the lever 2 in this embodiment to directly contact the PCB board 42 when it sinks. Therefore, this embodiment provides an additional component to directly electrically connect with the PCB board 42 through this component, and this component needs to be located below the second end of the lever 2 for contacting with the first contact 23 to achieve electrical connection between the first contact 23 and the PCB board 42. Therefore, this embodiment also involves the following designs:

[0080] As shown in FIG10 and FIG11 , the PCB assembly 4 includes: a contact stage 41 and a PCB board 42, wherein:

[0081] The contact platform 41 and the PCB board 42 are both arranged inside the base 3; a second contact 43 is provided on the upper end surface of the contact platform 41, and the second contact 43 is located below the first contact 23. The second contact 43 is connected to the PCB board 42 through a metal belt 44; when the second end sinks, the first contact 23 and the second contact 43 are in contact, and the first contact 23 is electrically connected to the PCB board 42.

[0082] As shown in Figures 10 and 11, the PCB board 42 needs to extend to the electrical interface end, so the length of the PCB board 42 is often not enough to support it to reach under the first contact 23, and the content on the PCB board 42 is compact, and it is usually impossible to directly set other contacts on the PCB board 42 for the first contact 23 to be electrically connected. Therefore, in this embodiment, the contact platform 41 is set in the direction of the PCB board 42 toward the optical interface end 31. It is also worth mentioning that in this embodiment, the optical interface component is connected to the lower surface of the PCB board 42 and is set at the lower end of the PCB board 42. The two connectors of the optical interface are side by side facing the optical interface end 31, and the contact platform 41 is set in the gap position between the two optical interfaces, thereby saving the internal space of the optical module and further improving the internal integration of the optical module; it can be seen from Figures 10 and 11 that the contact platform 41 is set on the inner surface of the base 3, and the vertical height of the contact platform 41 extends to the first contact 23 Directly below, a second contact 43 is provided at the upper end of the contact platform 41. The second contact 43 is made of conductive material, and the contact platform 41 is made of insulating material. The second contact 43 is routed inside the contact platform 41 and extends to the side wall of the contact platform 41, and then connected to the PCB board 42 from the side wall of the contact platform 41 through the FPC flexible circuit board. A corresponding early warning module is provided on the PCB board 42, and the FPC flexible circuit board is routed on the PCB board 42 and connected to the early warning module; when the first contact 23 and the second contact 43 are in contact, since the first contact 23 is on the side of the handle 1, it is actually grounded and is at a low level. Therefore, when the first contact 23 is connected to the second contact 43, the original high level on the PCB board 42 is pulled down, and the early warning module on the PCB board 42 feeds back to the control end host according to the corresponding level change. The host determines that the optical module is at risk of being accidentally unplugged, and performs corresponding signal transmission caching and / or signal transmission interruption.

[0083] As shown in Figures 10 and 11, when the optical module is not inserted or in a normally locked state, the second end of the lever 2 is normally tilted upward. At this time, there is a certain gap between the first contact 23 and the second contact 43. The two are not in contact and no electrical connection is generated. When the second end of the lever 2 sinks, the vertical height of the first contact 23 is reduced and connected to the second contact 43 to achieve the corresponding electrical connection.

[0084] It is worth mentioning that, in addition to the connection method of the FPC flexible circuit board in Figure 11, the connection method between the PCB board 42 and the second contact 43 can also be achieved by first routing the wires in the contact platform 41 through the second contact 43 to the side wall of the contact platform 41, and then providing a slot at the corresponding position of the side wall of the contact platform 41, and providing a corresponding plug-in card on the PCB board 42. The PCB board 42 and the contact platform 41 are connected in the form of a plug-in component to achieve electrical connection between the PCB board 42 and the second contact 43.

[0085] In this embodiment, since the optical module and the metal shielding cage slot need to be locked and unlocked by the handle 1 and the lever 2, it is necessary to provide space for the lever 2 to rotate, and at the same time, it is necessary to minimize the space occupied by the lever 2. On this basis, the handle 1 needs to be adapted and connected to the optical interface end 31 and the lever 2 at the same time. Therefore, this embodiment also involves the following designs:

[0086] As shown in Figures 12 to 14, the lever 2 is axially connected to the base 3, specifically including:

[0087] Rotating shafts 24 are provided on both sides of the lever 2; one end of the base 3 is an optical interface end 31, and the optical interface end 31 is used for sliding and guiding connection with the handle 1; a clearance cavity 311 is provided on the upper surface of the optical interface end 31, and U-shaped grooves 312 are also provided on both sides of the inner wall of the clearance cavity 311; the lever 2 is arranged inside the clearance cavity 311, and the rotating shaft 24 is located in the U-shaped groove 312, the first end of the lever 2 is facing away from the PCB assembly 4, and the second end of the lever 2 is facing the PCB assembly 4.

[0088] As shown in Figure 12, in this embodiment, the rotating shaft 24 is cylindrical and is located near the center of both sides of the lever 2; the clearance cavity 311 is located at the upper center of the optical interface end 31. The outer side of the optical interface end 31 refers to the side where the optical interface connects to the external optical fiber, and the inner side of the optical interface end 31 refers to the side facing the interior of the optical module.

[0089] On the other hand, in order to unlock the optical module and issue a corresponding unlocking warning when the handle 1 is pulled outward, the inclined groove 21 in the lever 2 in this embodiment needs to be designed accordingly to ensure that when the handle 1 is pulled outward, the second end of the lever 2 can rotate downward accordingly.

[0090] As shown in Figure 12, the inclined groove 21 is arranged on the end surface of the first end of the lever 2 and is connected to the two side surfaces of the lever 2. The depth of the inclined groove 21 extends toward the middle of the lever 2. When the lever 2 is located in the give way cavity 311, the inclined groove 21 is inclined downward relative to the horizontal plane; when the frame 11 is guided and moved relative to the optical interface end 31, the connecting rod 12 slides in the inclined groove 21, driving the first end of the lever 2 to rise or sink.

[0091] As shown in Figure 12, since the first end will correspondingly tilt up when the second end sinks, when the handle 1 is pulled outward, the handle 1 will apply force to the first end to tilt it up, and the connecting rod 12 of the handle 1 is set in the inclined groove 21 of the first end. The opening of the inclined groove 21 is located on the end face of the first end, and the extension direction of its groove depth is toward the middle position of the inclined groove 21. At the same time, the inclined groove 21 itself is inclined downward, so when the connecting rod 12 moves outward in the horizontal direction, it will abut against the upper groove surface of the inclined groove 21. At this time, the upper groove surface of the inclined groove 21 is subjected to a certain upward force, so the first end of the lever 2 will tilt up until the groove depth extension direction of the inclined groove 21 itself is parallel to the horizontal plane, and the connecting rod 12 slides from the innermost end to the outermost end of the inclined groove 21.

[0092] Since the optical module is in a rectangular parallelepiped shape in this embodiment, and the outer contour of the optical interface end 31 is also roughly rectangular parallelepiped, in order to ensure the stability of the connection between the handle 1 and the optical interface end 31, the portion where the handle 1 and the optical interface end 31 are connected should be a frame, and the frame semi-encloses and covers the optical interface end 31. At the same time, it is also necessary that the frame can be guided and moved relative to the optical interface end 31 while ensuring the connection, so that the handle 1 can act on the lever 2. Therefore, this embodiment also involves the following designs:

[0093] As shown in Figures 15-17, one end of the handle 1 is a frame 11, which is nested with the optical interface end 31 of the base 3. Retaining walls 111 are provided on both sides of the upper end surface of the frame 11. A guide slot 313 is provided on both sides of a clearance cavity 311 on the upper surface of the optical interface end 31. The retaining walls 111 are inserted into the guide slots 313. When the frame 11 is guided relative to the optical interface end 31, the retaining walls 111 slide within the guide slots 313. A spring 314 is also provided between the side of the retaining wall 111 facing the handle and the inner wall of the guide slot 313.

[0094] Two supporting arms 113 are provided on the inner end faces of the frame 11 facing each other. The supporting arms 113 are inserted into the clearance cavity 311 . Through holes are provided on the supporting arms 113 . The through holes on the two supporting arms 113 are used to connect with the two ends of the connecting rod 12 .

[0095] As shown in Figures 15 to 17, bosses 315 are further provided on both sides of the optical interface end 31, and corresponding guide holes 112 are provided on both sides of the frame 11. When the frame 11 is sleeved on the optical interface end 31, the bosses 315 cooperate with the guide holes 112; when the frame 11 is guided and moved relative to the optical interface end 31, the bosses 315 move in the guide holes 112.

[0096] As shown in Figures 15-17, the frame 11 includes at least three surfaces: two side surfaces and a top surface. The two side surfaces are located on either side of the frame 11, and the top surface is located at the upper end of the frame 11. The two side surfaces are connected by the top surface. The bosses 315 on the two side surfaces cooperate with the guide holes 112 on either side of the optical interface end 31, and the retaining wall 111 on the top surface cooperates with the guide slot 313 at the upper end of the optical interface end 31. Through the cooperation of these three surfaces, the frame 11 is fixed in the vertical direction and in the longitudinal and horizontal directions. It should be noted that since the frame 11 needs to be guided relative to the optical interface end 31, the guide holes 112 and the guide slot 313 both provide displacement space in the pulling direction of the handle 1 for the bosses 315 and retaining wall 111 to move. In addition, a circumferential baffle is provided on the inner periphery of the optical interface end 31 to block the frame 11 and restrict it to its position within the optical interface end 31.

[0097] As shown in Figures 15 to 17, it should be noted that due to the chamfer 22 used for locking the optical module, that is, the second end of the lever 2 needs to remain in an upward state under normal conditions, thereby maintaining the locking state of the optical module and avoiding continuous docking between the first contact 23 and the second contact 43. Therefore, even if the handle 1 is displaced outward relative to the optical interface end 31, that is, the second end of the lever 2 sinks, the handle 1 needs to return to its original position by itself and restore the second end of the lever 2 to be upward again. Therefore, a spring 314 is selected to be provided in the guide slot 313 at the upper end of the optical interface end 31, thereby applying a continuous inward abutting force to the retaining wall 111, ensuring that when the handle 1 is not affected by external artificial forces, the retaining wall 111 returns to its original position due to the elastic restoring force of the spring 314; it should be noted that the spring 314 should not be limited to being provided in the guide slot 313 at the upper end of the optical interface end 31, and the same slot can also be provided on both sides of the optical interface end 31, and the spring 314 can be provided to achieve the same effect. On the other hand, in order to facilitate the installation of the spring 314, in this embodiment, the frame 11 is provided with a mounting hole above the guide slot 313, which is used to place the spring 314 into the guide slot 313 from the mounting hole after the frame 11 is installed to the surface of the optical interface end 31.

[0098] It is worth mentioning that since the handle 1 may be subjected to upward or downward pulling forces in other circumstances, when the handle 1 is subjected to oblique upward or downward pulling forces, in order to avoid the turning position of the frame 11 from getting stuck with the optical interface end 31, this embodiment connects the turning position of the frame 11 in a relatively wide and high-strength manner to avoid the above situation. 18 and 19, at least one limiting shaft platform 317 is provided on each side of the optical interface end 31, and the limiting shaft platform 317 and the boss 315 are located at the same horizontal height. The limiting shaft platform 317 and the boss 315 cooperate with the inside of the guide hole 112, and the length of the guide hole 112 is longer than that when the limiting shaft platform 317 is not provided, ensuring that when the handle 1 is pulled back and forth, the limiting shaft platform 317 and the boss 315 can move in the guide hole 112; under the joint action of the limiting shaft platform 317 and the boss 315, the guide hole 112 and the surrounding frame 11 are limited in the vertical direction, thereby preventing the handle 1 from getting stuck when it is pulled at a certain angle.

[0099] As shown in Figures 20 and 21, a cover plate 5 is further provided at the upper end of the frame 11, and a matching hole 51 is provided on the end face of the cover plate 5. A corresponding inclined boss 316 is provided on the end face of the optical interface end 31. The matching hole 51 cooperates with the inclined boss 316 to fix the cover plate 5; the cover plate 5 is used to cover the upper end of the frame 11 and the lever 2 to prevent the frame 11 and the lever 2 from falling off from the optical interface end 31.

[0100] In addition, in this embodiment, in addition to being configured as a straight pull handle 1 with an elongated handle, the handle 1 can also be configured as a rotating handle 1, which can also achieve corresponding locking and unlocking functions.

[0101] Example 2:

[0102] Based on Example 1, Example 2 of the present invention provides a method for using an optical module with an unlocking warning function. In actual application scenarios, the corresponding locking and unlocking of the optical module during plugging and unplugging, as well as the implementation process of the corresponding unlocking warning, are demonstrated as follows:

[0103] In step 101, the handle 1 is guided outward relative to the base 3, the connecting rod 12 moves in the inclined groove 21, the first end of the lever 2 is lifted, and the second end of the lever 2 is simultaneously sunk, the chamfer 22 on the upper surface of the second end of the lever 2 is unlocked with the metal shielding cage slot, and the first contact 23 on the lower surface of the second end of the lever 2 is simultaneously electrically connected with the PCB board 42.

[0104] In this embodiment, the guide displacement of the handle 1 relative to the base 3 can be pulling the handle 1 outward or inward in a horizontal direction relative to the base 3, or pulling the handle 1 outward or inward at a preset angle relative to the horizontal direction, wherein the preset angle cannot exceed 15 degrees.

[0105] In step 102 , the low level of the first contact 23 pulls down the high level of the PCB board 42 , and sends an early warning signal to the MCU.

[0106] In step 103, the MCU performs signal transmission buffering and / or signal transmission interruption.

[0107] It should also be noted that the warning signal can be transmitted to the host at one end of the electrical interface or to the host at one end of the optical interface. However, in this embodiment, considering that the host at one end of the optical interface is usually farther away, the transmission efficiency and actual implementation effect are not as good as that of the host at one end of the electrical interface. Therefore, this embodiment chooses the host at one end of the electrical interface as the host for warning processing.

[0108] The structure of the optical module with unlocking warning function in this embodiment has been described in Example 1 and will not be repeated here.

[0109] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An optical module with unlocking warning function, characterized in that: include: A handle (1), a lever (2), a base (3) and a PCB assembly (4), wherein: The handle (1) is connected to the base (3) in a sliding and guiding manner, and a connecting rod (12) is provided on the handle (1); The lever (2) is axially connected to the base (3); the first end of the lever (2) is provided with an inclined groove (21), and the connecting rod (12) is located in the inclined groove (21); the upper surface of the second end of the lever (2) is provided with a chamfer (22), and the chamfer (22) is used to match and lock with the notch of the metal shielding cage, and the lower surface of the second end of the lever (2) is provided with a first contact (23); The PCB assembly (4) is arranged inside the base (3) and is located below the second end of the lever (2); When the handle (1) is guided outward relative to the base (3), the connecting rod (12) lifts the upper end of the inclined groove (21), the first end tilts upward, the second end sinks downward, the chamfer (22) is unlocked with the notch of the metal shielding cage, and the first contact (23) contacts the PCB assembly (4), providing an unlocking warning.

2. The optical module with unlocking warning function according to claim 1, characterized in that: The two ends of the base (3) are respectively an optical interface end (31) and an electrical interface end, and the handle (1) is connected to the optical interface end (31) to provide a handle for applying force when plugging and unplugging the optical module; When the handle (1) is connected to the optical interface end (31), the connecting rod (12) is located at the upper end of the optical interface end (31).

3. The optical module with unlocking warning function according to claim 2, characterized in that: The lever (2) is axially connected to the upper end of the optical interface end (31), the first end of the lever (2) faces the side of the handle (1), and the second end of the lever (2) faces away from the side of the handle (1); The inclined groove (21) is arranged at an end surface position of a first end of the lever (2); the groove depth of the inclined groove (21) extends toward a middle position of the lever (2); the inclined groove (21) is inclined downward at a preset angle compared to a horizontal direction; and the connecting rod (12) is located inside the inclined groove (21).

4. The optical module with unlocking warning function according to claim 1, characterized in that: The chamfer (22) is located on the upper surface of the second end of the lever (2), the side of the chamfer (22) facing the inner side of the base (3) is an inclined surface, and the side of the chamfer (22) facing the outer side of the base (3) is a vertical surface; When an inward force is applied to the handle (1) to insert the optical module into the notch of the metal shielding cage, the upper groove wall of the notch of the metal shielding cage is pushed along the chamfered (22) slope to press the second end of the lever (2) downward; When the chamfer (22) completely enters the notch of the metal shielding cage, the second end of the lever (2) rebounds upward, the vertical surface of the chamfer (22) abuts against the inner wall of the notch of the metal shielding cage, and the optical module is locked with the notch of the metal shielding cage.

5. The optical module with unlocking warning function according to claim 1, characterized in that: The first contact point (23) is arranged on the lower surface of the second end of the lever (2).

6. The optical module with unlocking warning function according to claim 1, characterized in that: The first contact (23) is a metal disc.

7. The optical module with unlocking warning function according to claim 1, characterized in that: The PCB assembly (4) is arranged below the second end of the lever (2).

8. The optical module with unlocking warning function according to claim 1, characterized in that: The PCB assembly (4) comprises: a contact platform (41) and a PCB board (42), wherein: A second contact point (43) is provided on the upper surface of the contact platform (41), the second contact point (43) is located below the first contact point (23), and the second contact point (43) is electrically connected to the PCB board (42) via a metal strip (44); When the second end sinks, the first contact (23) and the second contact (43) are in contact, and the first contact (23) is electrically connected to the PCB board (42).

9. The optical module with unlocking warning function according to claim 8, characterized in that: The optical interface component is connected to the lower surface of the PCB board (42) and is arranged at the lower end of the PCB board (42). The contact platform (41) is arranged at the gap position between the two optical interfaces.

10. The optical module with unlocking warning function according to claim 8, characterized in that: The touch platform (41) is arranged on the inner surface of the base (3), the vertical height of the touch platform (41) extends to directly below the first contact point (23), the second contact point (43) is routed inside the touch platform (41) and extends to the side wall of the touch platform (41), and is connected to the PCB board (42) from the side wall of the touch platform (41) via an FPC flexible circuit board, a corresponding early warning module is arranged on the PCB board (42), and the FPC flexible circuit board is routed on the PCB board (42) and connected to the early warning module.

11. The optical module with unlocking warning function according to claim 8, characterized in that: The contact platform (41) is made of insulating material.

12. The optical module with unlocking warning function according to claim 8, characterized in that: The second contact (43) is made of conductive material.

13. The optical module with unlocking warning function according to claim 1, characterized in that: The lever (2) is axially connected to the base (3), and specifically comprises: Rotating shafts (24) are arranged on both sides of the lever (2); One end of the base (3) is an optical interface end (31), and the optical interface end (31) is used for slidingly guiding and connecting with the handle (1); a clearance cavity (311) is provided on the upper surface of the optical interface end (31), and U-shaped grooves (312) are also provided on both sides of the inner wall of the clearance cavity (311); The lever (2) is arranged inside the clearance cavity (311), the rotating shaft (24) is located in the U-shaped groove (312), the first end of the lever (2) faces away from the PCB assembly (4), and the second end of the lever (2) faces the PCB assembly (4).

14. The optical module with unlocking warning function according to claim 13, characterized in that: The rotating shaft (24) is cylindrical and is arranged at a position close to the middle of both sides of the lever (2); the clearance cavity (311) is arranged at a middle position at the upper end of the optical interface end (31); The outer side of the optical interface end (31) refers to the side where the optical interface is connected to the external optical fiber, and the inner side of the optical interface end (31) refers to the side facing the inside of the optical module.

15. The optical module with unlocking warning function according to claim 1, characterized in that: The first end of the lever (2) is provided with an inclined groove (21), which specifically comprises: The inclined groove (21) is arranged on the end surface of the first end of the lever (2) and communicates with the two side surfaces of the lever (2). The depth of the inclined groove (21) extends toward the middle of the lever (2). The inclined groove (21) is inclined downward relative to the horizontal plane. When the handle (1) is guided and moved relative to the base (3), the connecting rod (12) slides in the inclined groove (21), driving the first end of the lever (2) to tilt upward or downward.

16. The optical module with unlocking warning function according to claim 15, characterized in that: When the handle (1) is pulled outward, the handle (1) applies force to the first end of the lever (2) to tilt it upward, and the connecting rod (12) of the handle (1) is arranged in the inclined groove (21) at the first end, the opening of the inclined groove (21) is located on the end surface of the first end of the lever (2), the extending direction of the groove depth of the inclined groove (21) is toward the middle position of the inclined groove (21), and the inclined groove (21) is inclined downward; When the connecting rod (12) moves outward in the horizontal direction, the connecting rod (12) abuts against the upper groove surface of the inclined groove (21), and the first end of the lever (2) tilts upward until the groove depth of the inclined groove (21) itself is The extending direction is parallel to the horizontal plane, and the connecting rod (12) slides from the inner end to the outer end of the inclined groove (21).

17. The optical module with unlocking warning function according to claim 1, characterized in that: The handle (1) is connected to the base (3) in a sliding and guiding manner, and specifically comprises: One end of the handle (1) is a surrounding frame (11), and the surrounding frame (11) is sleeved with the optical interface end (31) of the base (3); The upper end surface of the frame (11) is provided with retaining walls (111) on both sides, and the upper surface of the optical interface end (31) is provided with guiding grooves (313) on both sides. The retaining walls (111) are inserted into the guiding grooves (313). When the frame (11) is guided and moved relative to the optical interface end (31), the retaining walls (111) slide in the guiding grooves (313).

18. The optical module with unlocking warning function according to claim 17, characterized in that: A spring (314) is also provided between a side of the retaining wall (111) facing the outside of the handle (1) and an inner wall of the guide slide groove (313).

19. The optical module with unlocking warning function according to claim 17, characterized in that: Bosses (315) are also provided on both sides of the optical interface end (31), and corresponding guide holes (112) are provided on both sides of the surrounding frame (11); when the surrounding frame (11) is sleeved on the optical interface end (31), the bosses (315) match the guide holes (112); When the surrounding frame (11) moves in a guided manner relative to the optical interface end (31), the boss (315) moves in the guide hole (112).

20. The optical module with unlocking warning function according to claim 17, characterized in that: Two support arms (113) are arranged facing each other on the inner end faces of the enclosure (11); the support arms (113) are inserted into a clearance cavity (311) at the upper end of the optical interface end (31); through holes are arranged on the support arms (113); the through holes on the two support arms (113) are used to connect with the two ends of the connecting rod (12).

21. The optical module with unlocking warning function according to claim 19, characterized in that: The surrounding frame (11) comprises at least three surfaces, wherein the three surfaces are respectively two side surfaces and a top surface; The two side surfaces are located on both sides of the surrounding frame (11), the top surface is located at the upper end of the surrounding frame (11), and the two side surfaces are connected via the top surface; the bosses (315) on the two side surfaces cooperate with the guide holes (112) on both sides of the optical interface end (31), and the retaining wall (111) on the top surface cooperates with the guide slot (313) at the upper end of the optical interface end (31), so that the surrounding frame (11) is fixed in the vertical direction and in the longitudinal and horizontal directions through the cooperation of the three surfaces.

22. The optical module with unlocking warning function according to claim 17, characterized in that: A peripheral baffle is also provided on the inner periphery of the optical interface end (31) for blocking the surrounding frame (11) and restricting the surrounding frame (11) to an internal position of the optical interface end (31).

23. The optical module with unlocking warning function according to claim 18, characterized in that: The spring (314) is arranged in the guide slot (313) at the upper end of the optical interface end (31) to apply a continuous inward abutment force to the retaining wall (111), thereby ensuring that the retaining wall (111) returns to its original position due to the elastic restoring force of the spring (314) when the handle (1) is not subjected to external artificial forces; The surrounding frame (11) is provided with a mounting hole at a position above the guide sliding groove (313).

24. The optical module with unlocking warning function according to claim 19, characterized in that: At least one limiting rotating shaft platform (317) is provided on each side of the optical interface end (31), the limiting rotating shaft platform (317) and the boss (315) are located at the same horizontal height, and the limiting rotating shaft platform (317) and the boss (315) are matched together inside the guide hole (112).

25. The optical module with unlocking warning function according to claim 17, characterized in that: A cover plate (5) is also provided at the upper end of the surrounding frame (11); a matching hole (51) is provided on the end surface of the cover plate (5); a corresponding inclined boss (316) is provided on the end surface of the optical interface end (31); the matching hole (51) cooperates with the inclined boss (316) to fix the cover plate (5); The cover plate (5) is used to cover the upper ends of the surrounding frame (11) and the lever (2) to prevent the surrounding frame (11) and the lever (2) from falling off from the optical interface end (31).

26. A method for using an optical module with an unlocking warning function, applied to the optical module with an unlocking warning function as claimed in any one of claims 1 to 25, characterized in that: include: The handle (1) is guided to move outward relative to the base (3), the connecting rod (12) moves in the inclined groove (21), the first end of the lever (2) is lifted up, the second end of the lever (2) is simultaneously sunk, the chamfer (22) on the upper surface of the second end of the lever (2) is unlocked with the notch of the metal shielding cage, and the first contact (23) on the lower surface of the second end of the lever (2) is simultaneously electrically connected with the PCB assembly (4); The low level of the first contact (23) pulls down the high level of the PCB component (4), and sends a warning signal to the MCU; The MCU performs signal transmission buffering and / or signal transmission interruption.

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