An optical module convenient for cleaning optical fiber interface and use method thereof

Abstract

The present invention relates to the field of optical communication technology, and in particular to an optical module that is easy to clean an optical fiber interface and a method of using the optical module, comprising: a packaging shell, a circuit board and a fiber coiling cover; the circuit board and the fiber coiling cover are located inside the packaging shell, and the fiber coiling cover covers the top of the optical device area of ​​the circuit board; the packaging shell comprises an upper cover and a base, the upper cover and the base are fixedly connected, and one end of the base is provided with an optical fiber interface; the optical device on the circuit board is connected to the optical fiber pin, and the optical fiber pin comprises a front positioning post and a rear positioning post, the front positioning post and the rear positioning post are rotatably connected, the front positioning post is inserted into the optical fiber interface, and the rear positioning post is clamped with the fiber coiling cover; the rear positioning post is provided with a clamping disk, and one end of the fiber coiling cover is provided with a first clamping groove, and the first clamping groove is provided on the side of the fiber coiling cover facing the optical fiber interface; wherein the fiber coiling cover is used to coil all optical fibers connected between the optical devices and the rear positioning post and to separate the optical devices.

Description

Technical Field

[0001] The present invention relates to the technical field of optical communication, and in particular to an optical module that is convenient for cleaning an optical fiber interface and a use method thereof. Background Art

[0002] As the core component of modern communication technology, the design and manufacturing process of existing optical communication active optical modules have always attracted much attention. Currently, the optical communication active optical modules on the market adopt the traditional independent parts precision assembly combination method. In the prior art, inside the optical module packaging structure, such as Figure 1a and Figure 1b As shown, the fiber cover 1' and the optical device 2' are both independently set, occupying a large space. Taking the fiber bending radius of 6mm as an example, the fiber bending diameter is 12mm, plus the space installation gap of the fiber cover 1', it will occupy 15*15mm 2 The optical device 2' will move toward the optical fiber interface, resulting in a reduction in the layout space of the printed circuit board (PCB), and a double-layer printed circuit board design has to be adopted. However, the double-layer PCB 3' needs to be a soft belt for communication connection, which increases the manufacturing cost sharply, and the heat dissipation problem of the double-layer PCB 3' is very difficult to solve. The heat dissipation of the optical module is through the top of the module. A slave board is sandwiched between the top of the module and the PCB main board, which makes heat dissipation difficult. In addition, the disassembly and assembly of the double-layer PCB 3' will also be cumbersome. Therefore, occupying the space of the double-layer PCB 3' will introduce many optoelectronic problems.

[0003] In addition, if the optical device has a pigtail, when using a cleaning stick to clean the optical fiber interface, it is easy to cause the optical fiber pin to rotate, causing the rear optical fiber to break, which is also a technical problem that needs to be solved during the cleaning process of the optical module.

[0004] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the existing optical devices and fiber coil covers are independently arranged, occupying a large space, resulting in a reduction in the PCB layout space, affecting the heat dissipation of the optical devices and increasing the manufacturing cost; and when using a cleaning rod to clean the optical fiber interface, it is easy to drive the optical fiber pin to rotate, causing the rear end optical fiber to twist and break.

[0006] The present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides an optical module that is convenient for cleaning an optical fiber interface, comprising: a packaging shell 1, a circuit board 2, and a fiber coil cover 3; the circuit board 2 and the fiber coil cover 3 are located inside the packaging shell 1, an optical device 25 is provided on the circuit board 2, and the fiber coil cover 3 covers the area above the optical device 25 of the circuit board 2;

[0008] The packaging shell 1 includes an upper cover 10 and a base 11, the upper cover 10 and the base 11 are fixedly connected, and one end of the base 11 is provided with an optical fiber interface 110; the optical device 25 on the circuit board 2 is connected to the optical fiber pin 20, and the optical fiber pin 20 includes a front positioning column 200 and a rear positioning column 201, the front positioning column 200 and the rear positioning column 201 are rotatably connected, the front positioning column 200 is inserted into the optical fiber interface 110, and the rear positioning column 201 is clamped with the fiber coil cover 3; the rear positioning column 201 A positioning disk 2010 is provided, and a first slot 30 is provided at one end of the fiber coil cover 3. The first slot 30 is provided on the side of the fiber coil cover 3 facing the optical fiber interface 110. When the rear positioning post 201 is engaged in the first slot 30, the positioning disk 2010 abuts against the outer wall of the fiber coil cover 3, and the positioning disk 2010 is limited by the fiber coil cover 3 and cannot rotate; wherein, the fiber coil cover 3 is used to coil all the optical fibers connected between the optical device 25 and the rear positioning post 201 and to separate the optical device 25.

[0009] Preferably, a positioning hole 111 is provided on the inner end surface of the base 11 , the positioning hole 111 is communicated with the optical fiber interface 110 , the positioning hole 111 is located at the center of the optical fiber interface 110 , and the positioning hole 111 is used to accommodate the front positioning column 200 .

[0010] Preferably, a double-hole absorbing plate 4 is provided between the positioning plate 2010 and the base 11 , and two round holes 40 are provided on the double-hole absorbing plate 4 , and the round holes 40 are used for the front positioning column 200 to pass through and be inserted into the positioning hole 111 .

[0011] Preferably, a card plate 100 is provided on the inner side of the upper cover 10, and two second card slots 1000 are provided on the card plate 100, and the second card slots 1000 are semicircular, and the second card slots 1000 are engaged with the rear positioning column 201; when the second card slots 1000 are engaged with the rear positioning column 201, the outer side surface of the card plate 100 abuts against the inner side surface of the fiber coil cover 3, so as to limit the fiber coil cover 3.

[0012] Preferably, positioning protrusions 101 are respectively provided on both sides of the interior of the upper cover 10, and the outer contour shape of the positioning protrusion 101 is consistent with the inner edge shape of the base 11 in the corresponding area; positioning bosses 112 are provided on both sides of the interior of the base 11, and when the upper cover 10 and the base 11 are buckled, the lower surface of the positioning protrusion 101 and the upper surface of the positioning boss 112 are abutted.

[0013] Preferably, a plurality of claws 31 are provided on the side of the fiber coiling cover 3 , and the claws 31 are used to coil all the optical fibers connected between the optical device 25 and the rear positioning post 201 .

[0014] Preferably, an isolation plate 32 is processed on the upper surface of the fiber coil cover 3, and at least one claw 31 is provided on the isolation plate 32. The isolation plate 32 and the side of the fiber coil cover 3 form a accommodating cavity, and the accommodating cavity is used to accommodate the optical device 25 located on the circuit board 2. The bottom surface of the isolation plate 32 is provided with a shielding partition 320, and the shielding partition 320 isolates each of the optical devices 25.

[0015] Preferably, an anti-rotation boss 33 is provided at the bottom outer side of the end surface of the disc fiber cover 3 where the first slot 30 is located, and the bottom surface of the positioning disk 2010 is a horizontal plane. When the rear positioning column 201 is engaged in the first slot 30, the bottom surface of the positioning disk 2010 abuts against the upper surface of the anti-rotation boss 33.

[0016] Preferably, the structure also includes a heat sink 5, which includes a bonding surface 50 and a heat dissipation surface 51, and the bonding surface 50 and the heat dissipation surface 51 are integrally formed; the bonding surface 50 is bonded to the bottom surface of the circuit board 2, and the heat dissipation surface 51 is bonded to the bottom surface of the optical device 25.

[0017] In a second aspect, the present invention provides a method for using an optical module that is convenient for cleaning an optical fiber interface, which is applicable to the optical module that is convenient for cleaning an optical fiber interface according to the first aspect, comprising:

[0018] Install the optical device 25 on the circuit board 2, and connect the optical device 25 and the optical fiber pin 20 via an optical fiber;

[0019] Cover the fiber coiling cover 3 on the circuit board 2, engage the rear positioning column 201 of the optical fiber pin 20 with the first card slot 30 of the fiber coiling cover 3, make the positioning plate 2010 abut against the outer end surface of the fiber coiling cover 3, and wind the optical fiber on the fiber coiling cover 3;

[0020] Place the circuit board 2 and the fiber coil cover 3 into the base 11, and insert the optical fiber pin 20 into the optical fiber interface 110 from the inside of the base 11;

[0021] The upper cover 10 and the base 11 are buckled and fixed to complete the assembly.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: First, the present invention covers the fiber coil cover 3 above the optical device 25 of the circuit board 2, and realizes the winding of the optical fiber on the fiber coil cover 3 without occupying the space for arranging the optical device 25 and the circuit board 2 in the packaging shell 1, thereby avoiding double-layer layout of the circuit board 2 in the optical module, improving the heat dissipation capacity of the optical module, and further improving the performance of the optical module.

[0023] Secondly, the present invention provides a locking plate 2010 on the rear positioning post 201 of the optical fiber pin 20, and cooperates the locking plate 2010 with the fiber cover 3 so that the rear positioning post 201 of the optical fiber pin 20 cannot rotate, and the optical fiber fixed on the rear positioning post 201 cannot twist, thereby solving the problem that when using a cleaning rod to clean the optical fiber interface 110, the optical fiber pin 20 is driven to rotate, causing the rear end optical fiber to twist and break.

[0024] In a preferred embodiment, a shielding partition 320 is provided on the bottom surface of the isolation plate 32 of the fiber tray cover 3 to separate the optical devices 25 , thereby preventing signal crosstalk between the optical devices 25 . BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order 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, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1a It is a schematic diagram of the existing structure of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0027] Figure 1b It is a schematic diagram of the layout of a fiber tray and a PCB of an optical module that facilitates cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the overall structure of an optical module that is convenient for cleaning an optical fiber interface provided by an embodiment of the present invention;

[0029] Figure 3 FIG1 is an exploded schematic diagram of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0030] Figure 4 It is a schematic diagram of an optical fiber pin of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0031] Figure 5 It is a schematic diagram of a claw of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0032] Figure 6 It is a schematic diagram of abutment between a positioning plate and an anti-rotation boss of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of a positioning hole of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0034] Figure 8 It is a schematic diagram of inserting a front positioning post of an optical module into an optical fiber interface for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0035] Fig. 9 Schematic diagram of a double-hole absorber for facilitating cleaning of an optical module at an optical fiber interface provided by an embodiment of the present invention;

[0036] Fig.10 It is a schematic diagram of a card board for an optical module that is convenient for cleaning an optical fiber interface provided by an embodiment of the present invention;

[0037] Fig.11 It is a schematic diagram of the cooperation between a card plate and a fiber coil cover of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0038] Fig.12 It is a schematic diagram of a positioning protrusion of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0039] Fig.13 It is a schematic diagram of a positioning boss of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0040] Fig.14 is a schematic diagram of an isolation plate of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0041] Fig.15 It is a schematic diagram of a shielding partition isolating an optical device of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0042] Fig.16 is a schematic diagram of a heat sink for an optical module that facilitates cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0043] Fig.17 It is a schematic diagram of a heat dissipation surface and a bonding surface of an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0044] Fig.18It is a schematic diagram of a base accommodating a heat sink of an optical module that is convenient for cleaning an optical fiber interface provided by an embodiment of the present invention;

[0045] Fig.19 It is a schematic diagram of a method for using an optical module for facilitating cleaning of an optical fiber interface provided by an embodiment of the present invention;

[0046] Fig. 20 This is a schematic diagram of the overall structure of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0047] Fig.21 An optical module that is easy to assemble is provided by an embodiment of the present invention. Fig. 20 Explosion diagram of

[0048] Fig. 22 An optical module that is easy to assemble is provided by an embodiment of the present invention. Fig.21 Schematic diagram of structural details;

[0049] Fig.23a is a schematic diagram of a torsion spring of an optical module that is easy to assemble provided by an embodiment of the present invention in a natural state;

[0050] Figure 23b It is a schematic diagram of a torsion spring when a pull ring of an optical module that is easy to assemble is unlocked provided by an embodiment of the present invention;

[0051] Fig.23c It is a schematic diagram of a notch of a protruding position of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0052] Fig.24a This is a schematic diagram of a second solution of a torsion spring of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0053] Figure 24b is a schematic diagram of a third solution of a torsion spring of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0054] Fig.24c is a schematic diagram of a fourth solution of a torsion spring of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0055] Fig.25 is a schematic diagram of a first groove and a second groove of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0056] Fig.26 is a schematic diagram of a fixing arm of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0057] Fig. 27 is a schematic diagram of a first groove of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0058] Fig.28 is a schematic diagram of a second groove of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0059] Fig.29 It is a schematic diagram of a spring piece of an optical module that is easy to assemble provided by an embodiment of the present invention abutting against a stop step;

[0060] Fig.30 is a schematic diagram of an unlocking protrusion of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0061] Fig.31 1 is a schematic diagram of unlocking an unlocking protrusion of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0062] Fig.32 It is a schematic diagram of a sink for an optical module that is easy to assemble provided by an embodiment of the present invention;

[0063] Fig.33 is a schematic diagram of a limiting protrusion of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0064] Fig.34 Schematic diagram of a lock of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0065] Fig.35 is a schematic diagram of a lock head of an optical module that is easy to assemble provided by an embodiment of the present invention;

[0066] Fig.36 It is a schematic diagram of a locking protrusion of an optical module that is easy to assemble provided by an embodiment of the present invention.

[0067] The accompanying drawings are as follows:

[0068] 1-encapsulation shell, 10-upper cover, 100-card board, 1000-second card slot, 101-positioning protrusion, 102-first groove, 1020-first stop step, 1021-sink, 11-base, 110-optical fiber interface, 111-positioning hole, 112-positioning boss, 113-first fixing plane, 1130-fixing protrusion, 114-first end face, 115-second groove, 1150-second stop step, 116-lock head, 117-baffle, 118-boss, 12-cover plate, 120-lock, 2-circuit board, 20-optical fiber pin, 200-front positioning column, 201-rear positioning Positioning column, 2010-positioning plate, 21-positioning notch, 22-positioning screw, 23-TOSA, 24-ROSA, 25-optical device, 3-disc fiber cover, 30-first slot, 31-claw, 32-isolation plate, 320-shielding partition, 33-anti-rotation boss, 4-double-hole absorbing plate, 40-circular hole, 5-heat sink, 50-fitting surface, 51-heat dissipation surface, 6-pull ring, 60-fixed arm, 600-unlocking protrusion, 601-limiting protrusion, 61-second fixed plane, 610-fixing hole, 611-positioning protrusion, 62-handle, 63-limiting boss, 7-torsion spring, 70-hook, 8-spring. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0070] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as open inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above terms due to reasons such as the order and position of appearance, it is not limited to that they can be carried in combination by one embodiment or example.

[0071] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0072] In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "multiple" is two or more. In addition, for example, the same type of nouns may be described as two independent individuals by adding "A" and "B" at the end. In this case, the corresponding features defined as "A" and "B" are only used to distinguish the same type of individuals for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0073] When describing some embodiments, the expressions "coupling", "coupling" and "connection" and their derivatives may be used. For example, when describing some embodiments, the term "connection" may be used to indicate that two or more components are in direct physical or electrical contact with each other. For another example, when describing some embodiments, the term "coupling" may be used to indicate that two or more components are in direct physical or electrical contact. However, the terms "connection" or "coupling" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other, such as "optical path coupling", "wireless connection", etc. The embodiments disclosed herein are not necessarily limited to the contents of the present invention.

[0074] In the description of the present invention, the expression "A and / or B" (where A and B are used to formally represent specific characteristic contents) will be involved, and the corresponding expressions include the following three combinations: only A, only B, and a combination of A and B.

[0075] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0076] 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.

[0077] Embodiment 1:

[0078] Embodiment 1 of the present invention provides an optical module that is convenient for cleaning an optical fiber interface, as shown in FIG. Figure 2 As shown, it comprises: a packaging shell 1, a circuit board 2 and a fiber coiling cover 3; the circuit board 2 and the fiber coiling cover 3 are located inside the packaging shell 1, an optical device 25 is arranged on the circuit board 2, and the fiber coiling cover 3 covers the area above the optical device 25 of the circuit board 2. The circuit board 2 is a single-layer circuit board, a positioning notch 21 is arranged on the side of the circuit board 2, and a positioning screw 22 is arranged at the bottom of the packaging shell 1 to realize the positioning of the circuit board 2 in the packaging shell 1; refer to Figure 4 As shown, an optical device 25 is arranged on the circuit board 2, and the optical device 25 includes but is not limited to a transmitting optical sub-assembly (TOSA) and a receiving optical sub-module (ROSA). Considering the limitations of the size, layout and heat dissipation of the circuit board 2, TOSA 23 is not directly arranged on the circuit board 2. TOSA 23 is designed and packaged as an independent module to make it have better versatility and maintainability, and it is also beneficial to improve the overall performance and reliability of the optical module.

[0079] The packaging shell 1 includes an upper cover 10 and a base 11, wherein the upper cover 10 and the base 11 are fixedly connected, and an optical fiber interface 110 is provided at one end of the base 11; specifically, the upper cover 10 and the base 11 can be fixedly connected by screws. Figure 4 The optical device 25 on the circuit board 2 is connected to the optical fiber pin 20, and the optical fiber pin 20 includes a front positioning post 200 and a rear positioning post 201, the front positioning post 200 and the rear positioning post 201 are rotatably connected, the front positioning post 200 is inserted into the optical fiber interface 110, and the rear positioning post 201 is clamped with the fiber coil cover 3; in one embodiment, the type of the optical fiber pin 20 can be a Lucent Connector (LC). Figure 5 and Figure 6As shown, the rear positioning column 201 is provided with a positioning plate 2010, and one end of the fiber coiling cover 3 is provided with a first slot 30, and the first slot 30 is provided on the side of the fiber coiling cover 3 facing the optical fiber interface 110. When the rear positioning column 201 is engaged in the first slot 30, the positioning plate 2010 abuts against the outer wall of the fiber coiling cover 3, and the positioning plate 2010 is limited by the fiber coiling cover 3 and cannot rotate; wherein, the fiber coiling cover 3 is used to coil all the optical fibers connected between the optical device 25 and the rear positioning column 201 and separate the optical device 25. Specifically, a plurality of claws 31 are provided on the side of the fiber coiling cover 3, and the claws 31 are used to coil all the optical fibers connected between the optical device 25 and the rear positioning column 201. The upper surface of the fiber coiling cover 3 includes a skylight area and a closed area, and the claws 31 are respectively provided above the frame of the skylight area and on the upper surface of the closed area.

[0080] Among them, the number of the optical fiber pins 20 is 2, one of the optical fiber pins 20 is connected to TOSA 23, and the other optical fiber pin 20 is connected to ROSA 24. The front end of the front positioning column 200 of the optical fiber pin 20 is provided with an optical port, which is used for light output or light input.

[0081] Compared with the prior art in which the optical device 25 and the fiber coiling cover 3 are independently arranged, the embodiment of the present invention adopts a method in which the fiber coiling cover 3 covers the optical device 25 area of ​​the circuit board 2, and the optical fiber is coiled on the fiber coiling cover 3 without occupying the space for arranging the optical device 25 and the circuit board 2 in the packaging shell 1, thereby avoiding double-layer layout of the circuit board 2 in the optical module, improving the heat dissipation capacity of the optical module, and further improving the performance of the optical module.

[0082] Secondly, the present invention provides a locking plate 2010 on the rear positioning post 201 of the optical fiber pin 20, and cooperates the locking plate 2010 with the fiber cover 3 so that the rear positioning post 201 of the optical fiber pin 20 cannot rotate, and the optical fiber fixed on the rear positioning post 201 cannot twist, thereby solving the problem that when using a cleaning rod to clean the optical fiber interface 110, the optical fiber pin 20 is driven to rotate, causing the rear end optical fiber to twist and break.

[0083] According to the structure provided by the above scheme, the structural details of the above scheme will be further elaborated below.

[0084] In the above solution, it is mentioned that the positioning plate 2010 is in contact with the outer wall of the coil fiber cover 3, and the positioning plate 2010 is limited by the coil fiber cover 3 and cannot rotate. Specifically, in one embodiment, continue to refer to Figure 5 and Figure 6As shown, an anti-rotation boss 33 is provided at the bottom of the outer side of the end surface of the disc fiber cover 3 where the first clamping slot 30 is located. The bottom surface of the clamping disc 2010 is a horizontal surface. When the rear positioning column 201 is clamped in the first clamping slot 30, the bottom surface of the clamping disc 2010 abuts against the upper surface of the anti-rotation boss 33. The bottom of the clamping disc 2010 is set as a plane, so that the plane abuts against the upper surface of the anti-rotation boss 33, which can ensure that the clamping disc 2010 does not rotate; in addition, the plane on the clamping disc 2010 does not necessarily need to be set at the bottom, but can also be set at the side or the top. Accordingly, the anti-rotation boss 33 is adjusted accordingly according to the position of the plane of the clamping disc 2010, so that the plane of the clamping disc 2010 can abut against the plane of the anti-rotation boss 33.

[0085] In the above structure, it is mentioned that the front positioning column 200 is inserted into the optical fiber interface 110. Specifically, Figure 7 and Figure 8 As shown, the inner end surface of the base 11 is provided with a positioning hole 111, the positioning hole 111 is communicated with the optical fiber interface 110, the positioning hole 111 is located at the center of the optical fiber interface 110, and the positioning hole 111 is used to accommodate the front positioning column 200. Therefore, when the optical fiber pin 20 is installed, it is inserted into the optical fiber interface 110 from the positioning hole 111.

[0086] like Figure 8 and Fig. 9 As shown, a double-hole absorbing plate 4 is provided between the positioning plate 2010 and the base 11, and two round holes 40 are provided on the double-hole absorbing plate 4, and the round holes 40 are used for the front positioning column 200 to pass through and be inserted into the positioning hole 111. The reason for providing the double-hole absorbing plate 4 between the optical fiber interface 110 and the optical fiber pin 20 is that the double-hole absorbing plate 4, as a kind of material that can absorb the electromagnetic wave energy projected onto its surface, plays a role in absorbing the electromagnetic radiation that may be generated in the optical module, which helps to reduce the potential impact of electromagnetic radiation on the equipment and the environment; secondly, the double-hole absorbing plate 4 can effectively absorb the leakage electromagnetic radiation that may be generated, thereby achieving the purpose of removing electromagnetic interference, ensuring the normal operation of the optical module, and improving the stability and reliability of the system; in addition to the above-mentioned direct effects, the double-hole absorbing plate 4 can also optimize certain performance parameters of the optical module through its special structure and material characteristics. For example, through the design and application of absorbing materials, it is possible to improve the performance indicators such as insertion loss and return loss of the optical module.

[0087] Considering that the fiber coil cover 3 is arranged inside the packaging shell 1 and covers the top of the optical device 25, even if the fiber coil cover 3 can be limited by the raised optical device 25, during the process of removing or installing the optical module, the optical module will inevitably tilt due to the operation. Only relying on the optical device 25 to limit or block the fiber coil cover 3 cannot completely ensure the stability of the fiber coil cover 3 inside the packaging shell 1. Therefore, if Fig.10 and Fig.11 As shown, a card plate 100 is provided on the inner side of the upper cover 10, and two second card slots 1000 are provided on the card plate 100. The second card slots 1000 are semicircular and are engaged with the rear positioning column 201. When the second card slots 1000 are engaged with the rear positioning column 201, the outer side surface of the card plate 100 abuts against the inner side surface of the fiber coiling cover 3 to limit the position of the fiber coiling cover 3. Since the upper cover 10 and the base 11 are fixedly connected, the card plate 100 provided on the upper cover 10 limits the position of the fiber coiling cover 3, so as to ensure that the fiber coiling cover 3 remains stable in a shaking environment.

[0088] In the process of buckling the upper cover 10 and the base 11, high precision is required so that the screw holes on the upper cover 10 and the base 11 can be used to fix them. Fig.12 and Fig.13 As shown, positioning protrusions 101 are respectively provided on both sides of the upper cover 10, and the outer contour of the positioning protrusion 101 matches the inner edge of the base 11 in the corresponding area; positioning bosses 112 are provided on both sides of the base 11, and when the upper cover 10 and the base 11 are buckled, the lower surface of the positioning protrusion 101 and the upper surface of the positioning boss 112 are in contact. During the installation process, the positioning protrusion 101 and the positioning boss 112 are coupled to ensure the coupling accuracy between the upper cover 10 and the base 11.

[0089] The optical devices 25 in the optical module, especially the optical active devices, are responsible for converting electrical signals into optical signals or converting optical signals into electrical signals. These optical devices 25 will generate optical signals when working. If there is no proper isolation between the optical devices 25, the optical signals may interfere with each other, resulting in a decrease in signal quality and affecting communication performance. Therefore, Fig.14 and Fig.15As shown, the upper surface of the fiber coil cover 3 is processed and provided with an isolation plate 32, and at least one claw 31 is provided on the isolation plate 32. The isolation plate 32 and the side of the fiber coil cover 3 form a receiving cavity, and the receiving cavity is used to receive the optical device 25 located on the circuit board 2. The bottom surface of the isolation plate 32 is provided with a shielding partition 320, and the shielding partition 320 isolates each of the optical devices 25. The area where the isolation plate 32 is located is the closed area of ​​the fiber coil cover 3. Based on this, the isolation plate 32 can effectively prevent the crosstalk between the optical signals of the optical device 25, and the highly sensitive optoelectronic device can quickly and accurately detect and convert the optical signal. However, if the distance between the optoelectronic devices is too close, they may be affected by the optical signals generated by each other, resulting in a decrease in sensitivity and a decrease in signal stability. The use of the isolation plate 32 can ensure the appropriate distance between the optoelectronic devices, thereby improving the signal stability.

[0090] In addition to the above structure, considering the heat dissipation requirements of the optical device 25, such as Fig.16 and Fig.17 As shown, the structure further includes a heat sink 5, the heat sink 5 includes a bonding surface 50 and a heat dissipation surface 51, the bonding surface 50 and the heat dissipation surface 51 are integrally formed; the bonding surface 50 is bonded to the bottom surface of the circuit board 2, and the heat dissipation surface 51 is bonded to the bottom surface of the optical device 25. Specifically, in this embodiment, the heat dissipation surface 51 is bonded to the bottom surface of the TOSA 23, and as shown in FIG. Fig.18 As shown in the dotted frame, a specific area for accommodating the heat sink 5 is specially provided on the inner side of the base 11 .

[0091] In actual application scenarios, the chips set on the circuit board 2 may include one or more of a microcontroller unit (MCU), a laser driver chip, a limiting amplifier (LimitingAmplifier), a clock and data recovery chip (Clock and Data Recovery, abbreviated as: CDR), a power management chip (Power Management Chip), and a digital signal processing (Digital Signal Processing, abbreviated as: DSP) chip.

[0092] The circuit board 2 is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also achieve a load-bearing function. For example, the rigid circuit board can stably carry the above-mentioned electronic components and chips.

[0093] The gold fingers of the circuit board 2 are formed on the end surface thereof. The gold fingers are composed of a plurality of independent pins. The circuit board 2 is inserted into the cage, and is electrically connected to the electrical connector in the cage by the gold fingers. The gold fingers can be arranged only on the surface of one side of the circuit board 2, or on the upper and lower surfaces of the circuit board 2 to adapt to occasions where a large number of pins are required. The gold fingers are configured to establish an electrical connection with the host computer to achieve power supply, grounding, I2C signal transmission, data signal transmission, etc. Of course, flexible circuit boards can also be used in some optical modules. Flexible circuit boards are generally used in conjunction with rigid circuit boards as a supplement to rigid circuit boards. For example, flexible circuit boards are typically used to compensate for the misalignment between the laser and / or detector in the BOSA device and the circuit board 2 after being fixed in the optical module housing.

[0094] In summary, based on the above structure, an embodiment of the present invention further provides a method for using an optical module that is convenient for cleaning an optical fiber interface, which is applicable to the optical module that is convenient for cleaning an optical fiber interface described in the above scheme, such as Fig.19 As shown, including:

[0095] In step S1 , the optical device 25 is mounted on the circuit board 2 , and the optical device 25 and the optical fiber pin 20 are connected via optical fiber.

[0096] In step S2, the fiber coiling cover 3 is covered on the circuit board 2, the rear positioning column 201 of the optical fiber pin 20 is engaged with the first slot 30 of the fiber coiling cover 3, the positioning plate 2010 is abutted against the outer end surface of the fiber coiling cover 3, and the optical fiber is wound on the fiber coiling cover 3.

[0097] In step S3 , the circuit board 2 and the fiber coil cover 3 are placed in the base 11 , and the optical fiber pin 20 is inserted into the optical fiber interface 110 from the inside of the base 11 .

[0098] In step S4, the upper cover 10 and the base 11 are buckled and fixed to complete the assembly.

[0099] Embodiment 2:

[0100] The embodiment of the present invention further elaborates on the packaging housing 1 and the optical module that is easy to assemble based on the embodiment 1.

[0101] Embodiment 2 of the present invention provides an optical module that is easy to assemble. Fig. 20 As shown, it comprises: a packaging shell 1 and a pull ring 6; the pull ring 6 comprises fixed arms 60 respectively processed and arranged on both sides, and the fixed arms 60 abut against both sides of the packaging shell 1.

[0102] like Fig.21 and Fig. 22As shown, the packaging shell 1 includes an upper cover 10, a base 11 and a cover plate 12, wherein the upper cover 10 and the base 11 are fixedly connected, and the cover plate 12 is clamped with the base 11; the base 11 is provided with a first fixing plane 113, and a fixing protrusion 1130 is processed and provided on the first fixing plane 113; the pull ring 6 is provided with a second fixing plane 61, and the second fixing plane 61 is located between the fixing arms 60, and the second fixing plane 61 is provided with a fixing hole 610, and the fixing hole 610 is sleeved on the fixing protrusion 1130, and the cover plate 12 covers the second fixing plane 61, and the cover plate 12 is clamped and fixed with the base 11. Among them, the first end surface 114 of the base 11 is provided with an optical fiber interface 110, and the first end surface 114 is located on the handle 62 side of the pull ring 6. In order to allow the handle 62 to move forward and backward relative to the packaging shell 1, the fixing hole 610 is a waist-shaped hole.

[0103] The fixing protrusion 1130 is sleeved with a torsion spring 7; hooks 70 are provided on both sides of the torsion spring 7, and two locking protrusions 611 are provided on the second fixing plane 61 of the pull ring 6. The locking protrusions 611 are respectively located on both sides of the fixing hole 610. When the torsion spring 7 is sleeved on the fixing protrusion 1130, the hooks 70 hook the outer sides of the locking protrusions 611. In the natural state, Fig.23a As shown, the annular portion of the torsion spring 7 is sleeved on the fixing protrusion 1130, and the horizontal arms on both sides of the annular portion for connecting the hook 70 are in a horizontal state, the hook 70 hooks the outer side of the positioning protrusion 611, and the fixing protrusion 1130 is located on the side of the fixing hole 610 close to the pull ring 6 handle 62; as shown in Figure 23, when the pull ring 6 handle 62 is pulled, the position of the fixing hole 610 moves, and the fixing protrusion 1130 moves away from the handle 62, the hook 70 continues to hook the positioning protrusion 611, and the horizontal arm connecting the hook 70 is pulled by the fixing protrusion 1130, and the two horizontal arms change from a horizontal state to a state in which the opening is at a certain angle toward the handle 62. Fig.23c As shown, a notch 6110 is provided on the side of the locking protrusion 611 facing the handle 62 , and the notch is used to prevent the hook 70 from sliding out from above the locking protrusion 611 .

[0104] In one embodiment, the torsion spring 7 has a shape other than the single ring shape shown in FIG. 23 , such as Figure 24a-Figure 24c As shown, the torsion spring 7 may also be in a double ring shape or a non-ring shape, or the hook 70 of the torsion spring 7 may be arranged toward the handle 62 of the pull ring 6 .

[0105] Different from Fig.23a and Figure 23b The scheme presented, Fig.24aIn the figure, the torsion spring 7 includes two annular parts, and correspondingly, two fixing protrusions 1130 are processed and arranged on the first fixing plane 113, and each fixing protrusion 1130 is sleeved with an annular part, so that the stability of the structure can be increased.

[0106] Different from Fig.23a and Figure 23b The scheme presented, Figure 24b In the embodiment, the torsion spring 7 is formed by bending a straight steel wire, a fixing protrusion 1130 and a limiting boss 63 are processed and arranged on the first fixing plane 113, the connection between the two horizontal arms of the torsion spring 7 is arc-shaped, the fixing protrusion 1130 and the limiting boss 63 clamp and fix the arc portion of the torsion spring 7, and the two horizontal arms of the torsion spring 7 are in a state of opening in a preset angle in the direction opposite to the handle 62 in a natural state. When the pull ring 6 is pulled, the locking protrusion 611 pulls the hook 70 to move in the pulling direction, and the opening angle of the two horizontal arms becomes larger.

[0107] Different from Figure 23b The scheme presented, Fig.24c In the embodiment, a fixing protrusion 1130 is machined and arranged on the first fixing plane 113, the torsion spring 7 includes an annular portion, the hook 70 of the torsion spring 7 is arranged toward the handle 62 of the pull ring 2, and the end of the hook 70 continues to extend outward and bend to hook the side of the positioning protrusion 611 toward the handle 62. When the pull ring 2 is pulled, the positioning protrusion 611 pulls the hook 70 to move in the pulling direction, and the two horizontal arms change from a horizontal state to a state with an opening toward the handle 62 at a certain angle.

[0108] The present invention transfers the spring structure arranged on both sides of the packaging shell 1 in the prior art to the outer surface of the packaging shell 1. While realizing the connection between the pull ring 6 and the packaging shell 1, the space inside the packaging shell 1 will not be occupied, so that the available layout space for the optical device 25 and the PCB in the packaging shell 1 is more sufficient, and the performance and function expansion of the optical module are improved as much as possible; and the torsion spring 7 is arranged on the surface of the packaging shell 1 instead of the spring to improve the assembly convenience of the structure.

[0109] According to the structure in the above scheme, in order to ensure the integrity of the scheme, the above structures will be further elaborated below.

[0110] In the above solution, the pull ring 6 includes fixed arms 60 respectively processed and arranged on both sides, and the fixed arms 60 abut against the two sides of the packaging shell 1, specifically including: Fig.25As shown, the upper cover 10 is provided with first grooves 102 for accommodating the fixed arm 60 on both sides, and the base 11 is provided with second grooves 115 for accommodating the fixed arm 60 on both sides. When the upper cover 10 and the base 11 are buckled together, the sum of the widths of the first groove 102 and the second groove 115 matches the width of the fixed arm 60. In one embodiment, Fig.26 , Fig. 27 and Fig.28 As shown, except for the protrusion at the top of the fixing arm 60, the distance between the two fixing arms 60 gradually decreases in the direction away from the handle 62, so the first groove 102 and the second groove 115 on the upper cover 10 and the base 11 also have a shape in which the depth of the depression increases.

[0111] When the optical module is placed in the switch as a whole, springs 8 are provided on both sides of the switch interface (see Fig.29 As shown) is used to lock the optical module inserted into the switch in the switch. Based on this, Fig.25 and Fig.29 As shown, the top edge of the first groove 102 is processed and provided with a first stop step 1020, and the edge of the second groove 115 is processed and provided with a second stop step 1150. The first stop step 1020 and the second stop step 1150 are located on the same horizontal line. When the optical module is inserted into the switch, the first stop step 1020 and the second stop step 1150 are used together to stop the spring piece 8 of the switch.

[0112] After the optical module is inserted, it may be necessary to maintain or replace the optical module in the later stage of use. At this time, it is necessary to lift the spring 8 that fixes the optical module, release the lock of the optical module on the switch, and take the optical module out of the switch. Fig.30 As shown, the top of the fixed arm 60 is provided with an unlocking protrusion 600. When the fixed arm 60 is located in the first groove 102 and the second groove 115 in a natural state, the lateral sides of the fixed arm 60 on both sides of the unlocking protrusion 600 abut against the first stop step 1020 and the second stop step 1150, and the height of the unlocking protrusion 600 is higher than the height of the first stop step 1020 and the second stop step 1150; wherein the unlocking protrusion 600 is smoothly connected to the main body of the fixed arm 60. Therefore, in combination with Fig.29 and Fig.31It can be seen that since the height of the unlocking protrusion 600 is higher than the heights of the first stop step 1020 and the second stop step 1150, and the spring piece 8 is in contact with the first stop step 1020 and the second stop step 1150, when the pull ring 6 is pulled, the pull ring 6 moves in the pulling direction as a whole, and the unlocking protrusion 600 also moves backward, thereby lifting the spring piece 8. Since the unlocking protrusion 600 and the main body of the fixed arm 60 are smoothly connected, that is, the unlocking protrusion 600 and the main body of the fixed arm 60 are connected in an arc shape, the spring piece 8 will be lifted upward along the smooth surface between the unlocking protrusion 600 and the main body of the fixed arm 60, separated from the optical module, and unlocking is achieved.

[0113] Based on the structure of the unlocking protrusion 600, in the preferred embodiment, by setting the unlocking protrusion 600 at the end of the fixed arm 60 of the pull ring 6, when the pull ring 6 is pulled out, the unlocking protrusion 600 can push open the spring piece 8 used by the switch to fix the optical module, making the installation and disassembly between the optical module and the switch easier and more convenient.

[0114] In order to make the fixing arm 60 fit better with the first groove 102 and the second groove 115, it is prevented that the fixing arm 60 is deformed after long-term use and cannot completely fit the groove bottom of the first groove 102 and the second groove 115. Fig.30 and Fig.32 As shown, a sink 1021 is provided on the top plane of the first groove 102, and the sink 1021 is provided close to the first stop step 1020; a limiting protrusion 601 is provided on the upper side of the fixed arm 60, and the width of the limiting protrusion 601 is smaller than the width of the sink 1021; Fig.33 As shown, when the fixed arm 60 is located in the first groove 102 and the second groove 115, the limiting protrusion 601 is located in the sunken groove 1021. Considering the requirement that the setting of the sunken groove 1021 and the limiting protrusion 601 cannot block the movement of the pull ring 6 relative to the packaging shell 1, it is mentioned in the scheme that the width of the limiting protrusion 601 is smaller than the width of the sunken groove 1021, that is, the distance that the fixed arm 60 can move relative to the packaging shell 1 is the width of the sunken groove 1021 minus the width of the limiting protrusion 601, and the width difference between the sunken groove 1021 and the limiting protrusion 601 should be able to ensure that the unlocking protrusion 600 can completely lift the spring piece 8 of the switch, so that the spring piece 8 does not contact the first stop step 1020 and the second stop step 1150.

[0115] In the above solution, it is mentioned that the cover plate 12 covers the second fixing plane 61, and the cover plate 12 is fixedly connected with the base 11 by clamping, wherein the specific method of clamping and fixing can be as follows: Fig.34 and Fig.35As shown, the cover plate 12 is provided with a plurality of lock openings 120, and the lock openings 120 are located on the side of the cover plate 12. The base 11 is provided with a plurality of lock heads 116, and the lock heads 116 are located on the side of the base 11. The lock openings 120 and the lock heads 116 are correspondingly arranged. When the lock heads 116 are located in the lock openings 120, the cover plate 12 is fixedly connected to the base 11. In one embodiment, a baffle 117 is provided on one side of the first fixing plane 113 of the base 11 close to the optical fiber interface 110, a locking head 116 is provided on the outer side of the baffle 117, a boss 118 is provided on the opposite side of the baffle 117, and a locking head 116 is provided on both sides of the boss 118; the cover plate 12 is processed to be provided with three folded side surfaces, the three folded side surfaces are respectively located on the two sides where the cover plate 12 abuts against the boss 118 and the side abutting against the outer side of the baffle 117, the locking opening 120 is respectively provided on the three folded side surfaces of the cover plate 12, when the pull ring 6 is assembled with the base 11, the torsion spring 7 is sleeved on the fixing protrusion 1130, so that the hook 70 hooks the locking protrusion 611, and after the locking opening 120 of the cover plate 12 is locked with the locking heads 116 on the baffle 117 and the boss 118, as shown in FIG. Fig.36 As shown, the inner bottom surface of the cover plate 12 abuts against the lower end of the locking protrusion 611 .

[0116] In summary, according to the structural scheme provided by the embodiment of the present invention, the embodiment of the present invention further provides a method for using an optical module that is easy to assemble, which is applicable to the optical module that is easy to assemble described in the above scheme, including: aligning the fixing hole 610 of the pull ring 6 with the fixing protrusion 1130, so that the second fixing plane 61 abuts against the first fixing plane 113, sleeve the torsion spring 7 on the fixing protrusion 1130, so that the hooks 70 on both sides of the torsion spring 7 abut against the outer side of the locking protrusion 611, cover the cover plate 12 on the second fixing plane 61 and snap it with the base 11, fasten the upper cover 10 and the base 11 together to complete the assembly of the structure, push the pull ring 6, insert the optical module into the switch, so that the spring sheet 8 of the switch abuts against the blocking step on the base 11; when it is necessary to pull out the optical module, pull the pull ring 6, the torsion spring 7 is squeezed, and the top end of the pull ring 6 pushes open the spring sheet 8 to pull the optical module out of the switch.

[0117] In each embodiment of the present invention, the improvement of the optical path structure and / or circuit structure in the corresponding technical solution, the applicable packaging structure includes but is not limited to dense wavelength division optical communication module (Centum gigabits Form Pluggable, abbreviated as: CFP) packaging, small hot pluggable optical module (Small Form-factor Pluggable, abbreviated as: SFP) packaging, octal small form-factor pluggable packaging (Octal Small Form-factor Pluggable, abbreviated as OSFP) packaging, quad small form-factor pluggable packaging (Quad Small Form-factor Pluggable, abbreviated as QSFP) packaging, 10-gigabit small form factor pluggable packaging (10-Gigabit Small Form Factor Pluggable, abbreviated as XFP) packaging, and corresponding different models of derivative versions of the above-mentioned packaging, such as CFP2 packaging, CFP4 packaging, and CFP8 packaging under the CFP packaging derivative version; for example, QSFP+ packaging, QSFP28 packaging, QSFP56 packaging, double-density quad small form factor pluggable packaging (Quad Small Form Factor Pluggable, abbreviated as XFP) packaging under the QSFP packaging extension version. Form-factor Pluggable-Double Density, abbreviated as QSFP-DD) packaging, etc. Since the packaging of the optical module is more of a shell format customized to adapt to the scene size, the optical path structure and / or circuit structure theory proposed by the creative labor of the present invention should also be applicable to possible packaging formats proposed in the future if there is no clear technical conflict, and therefore, it should also be understood to be within the scope of protection of the present invention.

[0118] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical module that is convenient for cleaning an optical fiber interface, characterized in that: include: A packaging shell (1), a circuit board (2) and a fiber coiling cover (3); the circuit board (2) and the fiber coiling cover (3) are located inside the packaging shell (1), an optical device (25) is arranged on the circuit board (2), and the fiber coiling cover (3) covers the top of the optical device (25); The packaging shell (1) comprises an upper cover (10) and a base (11), the upper cover (10) and the base (11) are fixedly connected, and one end of the base (11) is provided with an optical fiber interface (110); the optical device (25) on the circuit board (2) is connected to the optical fiber plug (20), and the optical fiber plug (20) comprises a front positioning column (200) and a rear positioning column (201), the front positioning column (200) and the rear positioning column (201) are rotatably connected, the front positioning column (200) is inserted into the optical fiber interface (110), and the rear positioning column (201) is clamped with the fiber coil cover (3); the rear positioning column ( The optical fiber cover (201) is provided with a locking plate (2010), and one end of the optical fiber cover (3) is provided with a first locking groove (30), and the first locking groove (30) is arranged on the side of the optical fiber cover (3) facing the optical fiber interface (110). When the rear positioning post (201) is engaged in the first locking groove (30), the locking plate (2010) abuts against the outer wall of the optical fiber cover (3), and the locking plate (2010) is limited by the optical fiber cover (3) and cannot rotate; wherein the optical fiber cover (3) is used to coil all the optical fibers connected between the optical device (25) and the rear positioning post (201) and to separate the optical device (25).

2. The optical module for facilitating cleaning of an optical fiber interface according to claim 1, characterized in that: The inner end surface of the base (11) is provided with a positioning hole (111), the positioning hole (111) is in communication with the optical fiber interface (110), the positioning hole (111) is located at the center of the optical fiber interface (110), and the positioning hole (111) is used to accommodate the front positioning column (200).

3. The optical module for facilitating cleaning of an optical fiber interface according to claim 2, characterized in that: A double-hole absorbing plate (4) is provided between the positioning plate (2010) and the base (11), and two circular holes (40) are provided on the double-hole absorbing plate (4), and the circular holes (40) are used to allow the front positioning column (200) to pass through and be inserted into the positioning hole (111).

4. The optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 3, characterized in that: A clamping plate (100) is arranged on the inner side of the upper cover (10), and two second clamping grooves (1000) are arranged on the clamping plate (100), and the second clamping grooves (1000) are semicircular, and the second clamping grooves (1000) are clamped with the rear positioning column (201); when the second clamping grooves (1000) are clamped with the rear positioning column (201), the outer side surface of the clamping plate (100) abuts against the inner side surface of the fiber coiling cover (3), so as to limit the position of the fiber coiling cover (3).

5. The optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 3, characterized in that: Positioning protrusions (101) are respectively arranged on both sides of the interior of the upper cover (10), and the outer contour shape of the positioning protrusion (101) matches the inner edge shape of the base (11) in the corresponding area; positioning bosses (112) are arranged on both sides of the interior of the base (11), and when the upper cover (10) and the base (11) are buckled, the lower surface of the positioning protrusion (101) and the upper surface of the positioning boss (112) are in contact with each other.

6. The optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 3, characterized in that: A plurality of claws (31) are arranged on the side of the fiber coiling cover (3), and the claws (31) are used to coil the optical fibers connected between all the optical devices (25) and the rear positioning pillars (201).

7. The optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 3, characterized in that: The upper surface of the fiber coiling cover (3) is provided with an isolation plate (32), and at least one claw (31) is provided on the isolation plate (32). The isolation plate (32) and the side edge of the fiber coiling cover (3) form a receiving cavity, and the receiving cavity is used to receive the optical device (25). The bottom surface of the isolation plate (32) is provided with a shielding partition (320), and the shielding partition (320) isolates each of the optical devices (25).

8. The optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 3, characterized in that: An anti-rotation boss (33) is provided at the bottom of the outer side of the end surface of the disc fiber cover (3) where the first clamping slot (30) is located, and the bottom surface of the clamping disk (2010) is a horizontal plane. When the rear positioning column (201) is clamped in the first clamping slot (30), the bottom surface of the clamping disk (2010) abuts against the upper surface of the anti-rotation boss (33).

9. The optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 3, characterized in that: The optical module further comprises a heat sink (5), the heat sink (5) comprising a bonding surface (50) and a heat dissipation surface (51), the bonding surface (50) and the heat dissipation surface (51) being integrally formed; the bonding surface (50) is bonded to the bottom surface of the circuit board (2), and the heat dissipation surface (51) is bonded to the bottom surface of the optical device (25).

10. A method for using an optical module for facilitating cleaning of an optical fiber interface, applicable to the optical module for facilitating cleaning of an optical fiber interface according to any one of claims 1 to 9, characterized in that: include: Mounting the optical device (25) on the circuit board (2), and connecting the optical device (25) and the optical fiber pin (20) via an optical fiber; The fiber coiling cover (3) is covered on the circuit board (2), the rear positioning column (201) of the optical fiber plug (20) is engaged with the first engaging groove (30) of the fiber coiling cover (3), the engaging plate (2010) is abutted against the outer end surface of the fiber coiling cover (3), and the optical fiber is wound on the fiber coiling cover (3); The circuit board (2) and the fiber coil cover (3) are placed in the base (11), and the optical fiber pin (20) is inserted into the optical fiber interface (110) from the inside of the base (11); The upper cover (10) and the base (11) are buckled and fixed together to complete the assembly.

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