Easy-to-assemble optical module and use method thereof

Abstract

The present invention relates to the technical field of optical communications, and in particular to an easy-to-assemble optical module and a use method thereof. The optical module comprises: a packaging housing and a pull member. The pull member comprises fixing arms respectively machined and arranged on two sides, and the fixing arms abut against the two sides of the packaging housing; the packaging housing comprises an upper cover, a base, and a cover plate, the upper cover is fixedly connected to the base, and the cover plate is snap-fitted to the base; the base is provided with a first fixing plane, and a fixing protrusion is machined on the first fixing plane; the pull member is provided with a second fixing plane, the second fixing plane is located between the fixing arms, the second fixing plane is provided with a fixing hole, and the fixing hole is fitted over the fixing protrusion; the cover plate covers the second fixing plane, and the cover plate is snap-fitted and fixed to the base; a torsion spring is provided between the cover plate and the second fixing plane, and the torsion spring is fitted over the fixing protrusion; and hooks are provided on two sides of the torsion spring, two retaining protrusions are provided on the second fixing plane of the pull member, and the retaining protrusions are respectively located on two sides of the fixing hole.

Description

An optical module with convenient assembly and a method of using the same

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the following patent application:

[0003] (1) Chinese patent application No. 202410739086.3, filed on June 7, 2024, entitled "An optical module with convenient assembly and a method of using the same". TECHNICAL FIELD

[0004] The present application relates to the field of optical communication technology, and in particular to an optical module with convenient assembly and a method of using the same. BACKGROUND

[0005] The existing optical communication active optical module, as a core component of modern communication technology, has always been concerned about its design and manufacturing process. The optical communication active optical module on the market currently adopts a traditional independent part precision assembly combination method. In order to realize the coupling between the optical module and the switch, an unlocking structure is usually designed in the packaging structure of the optical module. When the optical module is inserted into the switch, the shell of the optical module will be clamped by the locking device in the switch, and the unlocking structure is used to release the locking of the optical module by the switch. Taking one of the existing unlocking structures as an example, the existing unlocking structure is provided with a spring structure (as shown in the dashed box in FIG. 1) on the side surface of the packaging structure. Although the spring structure can realize the relative movement between the pull ring and the packaging structure without being separated, thereby realizing the unlocking of the optical module, the spring groove needs to be designed on both side surfaces of the packaging structure, which occupies the internal space of the packaging structure. In the limited space, this will undoubtedly squeeze the area originally used to place the optical device and the printed circuit board (PCB), thereby limiting the expansion of the performance and function of the optical module.

[0006] In view of this, overcoming the defects of the existing technology is a problem to be solved in the technical field.

[0007] CONTENT OF THE APPLICATION

[0008] The technical problem to be solved by the present application is that the existing optical module unlocking structure occupies the internal space of the packaging structure, squeezes the area originally used to place the optical device and the PCB, and thereby limits the expansion of the performance and function of the optical module.

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

[0010] The application provides a light module which is convenient to assemble.

[0011] The packaging shell 1 comprises a top cover 10, a base 11 and a cover plate 12, the top cover 10 is fixedly connected with the base 11, and the cover plate 12 is clamped with the base 11; the base 11 is provided with a first fixing plane 110, the first fixing plane 110 is provided with a fixing protrusion 1100, the pull ring 2 is provided with a second fixing plane 21, the second fixing plane 21 is located between the fixing arms 20, the second fixing plane 21 is provided with a fixing hole 210, the fixing hole 210 is sleeved on the fixing protrusion 1100, the cover plate 12 covers the second fixing plane 21, and the cover plate 12 is clamped and fixed with the base 11.

[0012] The fixing protrusion 1100 is sleeved with a torsion spring 3; the torsion spring 3 is provided with a hook 30 at two sides, the second fixing plane 21 of the pull ring 2 is provided with two clamping protrusions 211, the clamping protrusions 211 are located at two sides of the fixing hole 210 respectively, when the torsion spring 3 is sleeved on the fixing protrusion 1100, the hook 30 hooks the outer side of the clamping protrusion 211.

[0013] The application further provides a use method of the light module which is convenient to assemble.

[0014] The fixing hole 210 of the pull ring 2 is aligned with the fixing protrusion 1100, the second fixing plane 21 is abutted with the first fixing plane 110, the torsion spring 3 is sleeved on the fixing protrusion 1100, the hooks 30 at two sides of the torsion spring 3 are abutted with the outer sides of the clamping protrusions 211, and the top cover 10 is buckled and fixed with the base 11.

[0015] The pull ring 2 is pushed, the light module is inserted into the switch, and the elastic sheet 6 of the switch is abutted with the blocking step on the base 11.

[0016] When the light module needs to be pulled out, the pull ring 2 is pulled, the torsion spring 3 is pressed, the top end of the pull ring 2 pushes away the elastic sheet 6, and the light module is pulled out from the switch.

[0017] Compared with the prior art, the application has the beneficial effects that: the application 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, so that the connection between the pull ring 2 and the packaging shell 1 is realized without occupying the space inside the packaging shell 1, the layout space available for the optical device and the PCB in the packaging shell 1 is more sufficient, and the performance and the expansion of the function of the optical module are improved as much as possible; and the torsion spring 3 is arranged on the surface of the packaging shell 1 instead of the spring, so that the assembly convenience of the structure is improved.

[0018] In the preferred scheme, the unlocking protrusion 200 arranged at the end of the fixed arm 20 of the pull ring 2 can push open the spring sheet 6 of the switch for fixing the optical module when the pull ring 2 is pulled out, so that the installation and dismounting between the optical module and the switch are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments of the application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0020] Fig. 1 is a structural schematic diagram of an optical module with convenient assembly provided by an embodiment of the application according to the prior art;

[0021] Fig. 2 is a whole structural schematic diagram of an optical module with convenient assembly provided by an embodiment of the application;

[0022] Fig. 3 is an exploded schematic diagram of the optical module with convenient assembly provided by an embodiment of the application according to Fig. 2;

[0023] Fig. 4 is a structural detail schematic diagram of the optical module with convenient assembly provided by an embodiment of the application according to Fig. 3;

[0024] Fig. 5a is a schematic diagram of a torsion spring in a natural state of an optical module with convenient assembly provided by an embodiment of the application;

[0025] Fig. 5b is a schematic diagram of a torsion spring when a pull ring is unlocked of an optical module with convenient assembly provided by an embodiment of the application;

[0026] Fig. 5c is a schematic diagram of a notch of a clamping protrusion of an optical module with convenient assembly provided by an embodiment of the application;

[0027] Fig. 6a is a schematic diagram of a second scheme of a torsion spring of an optical module with convenient assembly provided by an embodiment of the application;

[0028] Fig. 6b is a schematic diagram of a third scheme of a torsion spring of an optical module with convenient assembly provided by an embodiment of the application;

[0029] Fig. 6c is a schematic diagram of a fourth scheme of a torsion spring of an optical module provided by an embodiment of the present application;

[0030] Fig. 7 is a schematic diagram of a first recess and a second recess of an optical module provided by an embodiment of the present application;

[0031] Fig. 8 is a schematic diagram of a fixing arm of an optical module provided by an embodiment of the present application;

[0032] Fig. 9 is a schematic diagram of a first recess of an optical module provided by an embodiment of the present application;

[0033] Fig. 10 is a schematic diagram of a second recess of an optical module provided by an embodiment of the present application;

[0034] Fig. 11 is a schematic diagram of a spring piece and a stop step of an optical module provided by an embodiment of the present application;

[0035] Fig. 12 is a schematic diagram of an unlocking protrusion of an optical module provided by an embodiment of the present application;

[0036] Fig. 13 is a schematic diagram of unlocking of an unlocking protrusion of an optical module provided by an embodiment of the present application;

[0037] Fig. 14 is a schematic diagram of a sink groove of an optical module provided by an embodiment of the present application;

[0038] Fig. 15 is a schematic diagram of a limiting protrusion of an optical module provided by an embodiment of the present application;

[0039] Fig. 16 is a schematic diagram of a lock opening of an optical module provided by an embodiment of the present application;

[0040] Fig. 17 is a schematic diagram of a lock head of an optical module provided by an embodiment of the present application;

[0041] Fig. 18 is a schematic diagram of a clamping protrusion of an optical module provided by an embodiment of the present application;

[0042] Fig. 19 is a schematic diagram of a disc fiber cover of an optical module provided by an embodiment of the present application;

[0043] Fig. 20 is a schematic diagram of an overall structure of an optical module facilitating cleaning of an optical fiber interface provided by an embodiment of the present application;

[0044] Fig. 21 is an exploded schematic diagram of Fig. 1 of an optical module facilitating cleaning of an optical fiber interface provided by an embodiment of the present application;

[0045] Figure 22 is a schematic diagram of a fiber ferrule of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0046] Figure 23 is a schematic diagram of a clamping jaw of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0047] Figure 24 is a schematic diagram of a clamping disc and anti-rotation boss abutting of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0048] Figure 25 is a schematic diagram of a positioning hole of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0049] Figure 26 is a schematic diagram of a front positioning column of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0050] Figure 27 is a schematic diagram of a double-hole wave-absorbing sheet of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0051] Figure 28 is a schematic diagram of a clamping plate of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0052] Figure 29 is a schematic diagram of a clamping plate and disc fiber cover cooperation of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0053] Figure 30 is a schematic diagram of a positioning protrusion of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0054] Figure 31 is a schematic diagram of a positioning boss of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0055] Figure 32 is a schematic diagram of an isolation plate of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0056] Figure 33 is a schematic diagram of a shielding isolation plate isolating optical devices of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0057] Figure 34 is a schematic diagram of a heat sink of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0058] Figure 35 is a schematic diagram of a heat dissipation surface and a bonding surface of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0059] Figure 36 is a schematic diagram of a base accommodating a heat sink of an optical module with a fiber interface convenient to clean according to an embodiment of the present application;

[0060] Figure 37 is a schematic diagram of a method of using an optical module with a fiber interface convenient to clean according to an embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0062] Unless otherwise required by context, the term "comprises" or "comprising" in the specification and claims is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" are intended to mean that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present disclosure. The illustrative representations of the above terms do not necessarily indicate that a combination of the same is necessarily included in one embodiment or example. In addition, the specific features, structures, materials or characteristics described can be included in any appropriate manner in any one or more embodiments or examples, i.e. although they are carried in the embodiments or examples of the above terms due to the order of appearance and location, they are not limited to being carried in combination by one embodiment or example.

[0063] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0064] In the description of the present application, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise stated, the meaning of "multiple" is two or more. In addition, for example, in the description, the same type of nouns can also be described as two independent individuals by adding "A", "B" at the end, in which case the features limited by "A", "B" are only used for the purpose of distinguishing the same type of individual description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0065] In describing some embodiments, use will be made of the terms "coupled," "coupling," and "connected," and variations thereof, and accompanying claims. For example, the term "connected" will be used to mean that two or more elements are in direct physical or electrical contact with each other. As another example, the term "coupled" will be used to mean that two or more elements are in either direct physical or electrical contact with each other, or that two or more elements are not in direct contact with each other, but yet still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited in scope to the terms used in the description.

[0066] In the description of the present application, the expression "A and / or B" (wherein A and B represent a specific feature) includes the following three combinations: A alone, B alone, and a combination of A and B.

[0067] As used in the description of the application, "about," "approximately," or "substantially" include the stated value and mean an acceptable range of variability of the value being discussed, as would be understood by one of ordinary skill in the art in light of the measurement being discussed and the associated error that goes along with such measurement (i.e., the limits of the measurement system).

[0068] Furthermore, the technical features involved in each of the embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0069] Embodiment 1:

[0070] The embodiment 1 of the present application provides an optical module which is convenient to assemble, as shown in Fig. 2, comprising: a packaging shell 1 and a pull ring 2; the pull ring 2 comprises fixed arms 20 respectively arranged on both sides, and the fixed arms 20 are in abutment with both sides of the packaging shell 1.

[0071] As shown in FIG. 3 and FIG. 4, the packaging shell 1 comprises an upper cover 10, a base 11 and a cover plate 12, 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 fixed plane 110, the first fixed plane 110 is provided with a fixed protrusion 1100, the pull ring 2 is provided with a second fixed plane 21, the second fixed plane 21 is located between the fixed arms 20, the second fixed plane 21 is provided with a fixed hole 210, the fixed hole 210 is sleeved on the fixed protrusion 1100, the cover plate 12 covers the second fixed plane 21, and the cover plate 12 is clamped and fixed with the base 11. Wherein, the first end surface 112 of the base 11 is provided with a fiber interface 1120, and the first end surface 112 is located on one side of the handle 22 of the pull ring 2. In order to enable the handle 22 to move forward and backward relative to the packaging shell 1, the fixed hole 210 is a waist-shaped hole.

[0072] The fixed protrusion 1100 is sleeved with a torsion spring 3; both sides of the torsion spring 3 are provided with a hook 30, the second fixed plane 21 of the pull ring 2 is provided with two clamping protrusions 211, the clamping protrusions 211 are respectively located on both sides of the fixed hole 210, when the torsion spring 3 is sleeved on the fixed protrusion 1100, the hook 30 hooks the outside of the clamping protrusion 211. In the natural state, as shown in FIG. 5a, the annular part of the torsion spring 3 is sleeved on the fixed protrusion 1100, the horizontal arms for connecting the hooks 30 on both sides of the annular part are in a horizontal state, the hook 30 hooks the outside of the clamping protrusion 211, and the fixed protrusion 1100 is located on the side of the fixed hole 210 close to the handle 22; as shown in FIG. 5b, when the handle 22 is pulled, the clamping protrusion 211 will also move, driving the hook 30 to move, and the annular part fixed on the fixed protrusion 1100 does not move, so the horizontal arms connected with the hooks 30 are pulled by the fixed protrusion 1100, and the two horizontal arms change from the horizontal state to the state of being at a certain angle and opening towards the handle 22. As shown in FIG. 5c, the clamping protrusion 211 is provided with a notch 2110 on the side towards the handle 22, and the notch 2110 is used to prevent the hook 30 from sliding out from above the clamping protrusion 211.

[0073] In one embodiment, the shape of the torsion spring 3 is not only the single annular shape shown in FIG. 5b, but also the double annular shape and the non-annular shape as shown in FIG. 6a-FIG. 6c, or the hook 30 of the torsion spring 3 is arranged towards the handle 22 of the pull ring 2.

[0074] Different from the scheme shown in figures 5a and 5b, in figure 6a, the torsion spring 3 comprises two annular parts, and corresponding to this, the first fixed plane 110 is provided with two fixed protrusions 1100, and each fixed protrusion 1100 is sleeved with an annular part, so that the stability of the structure can be increased.

[0075] Different from the scheme shown in figures 5a and 5b, in figure 6b, the torsion spring 3 is linearly bent, the first fixed plane 110 is provided with a fixed protrusion 1100 and a limiting boss 212, the connecting part of the two horizontal arms of the torsion spring 3 is in a circular arc shape, the fixed protrusion 1100 and the limiting boss 212 clamp and fix the circular arc part of the torsion spring 3, and the two horizontal arms of the torsion spring 3 are in a preset angle form with the opening facing the opposite direction of the handle 22 in the natural state. When the pull ring 2 is pulled, the clamping protrusion 211 drives the hook 30 to move in the pulling direction, and the opening angle of the two horizontal arms is increased.

[0076] Different from the scheme shown in figure 5b, in figure 6c, the first fixed plane 110 is provided with a fixed protrusion 1100, the torsion spring 3 comprises an annular part, the hook 30 of the torsion spring 3 is arranged towards the handle 22 of the pull ring 2, and the end of the hook 30 is continuously extended and bent outwards to hook the clamping protrusion 211 towards the side of the handle 22. When the pull ring 2 is pulled, the clamping protrusion 211 drives the hook 30 to move in the pulling direction, and the two horizontal arms change from the horizontal state to the form with the opening towards the handle 22 at a certain angle.

[0077] The present application 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, realizes the connection between the pull ring 2 and the packaging shell 1, does not occupy the space inside the packaging shell 1, makes the layout space of the optical device and the PCB in the packaging shell 1 more sufficient, and improves the performance and function expansion of the optical module as much as possible, and replaces the spring with the torsion spring 3 arranged on the surface of the packaging shell 1 to improve the assembly convenience of the structure.

[0078] According to the structure in the above scheme, in order to ensure the completeness of the scheme, the above structures will be further described in detail below.

[0079] In the above scheme, the pull ring 2 includes fixed arms 20 respectively arranged on both sides, which are in sliding connection with the side surface of the packaging shell 1. Specifically, as shown in FIG. 7, the two sides of the upper cover 10 are respectively provided with first grooves 100 for accommodating the fixed arms 20, and the two sides of the base 11 are respectively provided with second grooves 111 for accommodating the fixed arms 20. When the upper cover 10 and the base 11 are buckled, the sum of the widths of the first grooves 100 and the second grooves 111 matches the width of the fixed arms 20. In an embodiment, as shown in FIGS. 8, 9 and 10, the fixed arms 20 are removed from the top protruding form, and the two fixed arms 20 present a trend of gradually approaching the distance between the handles 22 in the direction away from the handles 22, so the first grooves 100 and the second grooves 111 also present a form of gradually increasing depth on the upper cover 10 and the base 11.

[0080] When the optical module is put into the switch as a whole, the interface of the switch is provided with spring sheets 6 (see FIG. 11) for locking the optical module inserted into the switch in the switch. Based on this, as shown in FIGS. 7 and 11, the top edge of the first groove 100 is provided with a first stop step 1000, and the edge of the second groove 111 is provided with a second stop step 1110. The first stop step 1000 and the second stop step 1110 are located on the same horizontal line. When the optical module is inserted into the switch, the first stop step 1000 and the second stop step 1110 are used together to stop the spring sheet 6 of the switch.

[0081] After the optical module is inserted, maintenance or replacement of the optical module may be faced in the later use, at this time the spring 6 for fixing the optical module needs to be lifted to release the locking of the optical module by the switch, and the optical module is taken out from the switch. Based on this, as shown in FIG. 12 and FIG. 13, the top end of the fixing arm 20 is provided with an unlocking protrusion 200, when the fixing arm 20 is in a natural state in the first groove 100 and the second groove 111, the horizontal edges of the fixing arm 20 on both sides of the unlocking protrusion 200 abut against the first stop step 1000 and the second stop step 1110, and the height of the unlocking protrusion 200 is higher than the height of the first stop step 1000 and the second stop step 1110. Wherein, the unlocking protrusion 200 and the main body of the fixing arm 20 are smooth connection. Therefore, as shown in FIG. 11 and FIG. 13, since the height of the unlocking protrusion 200 is higher than the height of the first stop step 1000 and the second stop step 1110, and the spring 6 abuts against the first stop step 1000 and the second stop step 1110, when the pull ring 2 is pulled, the pull ring 2 as a whole moves to the pulling direction, the unlocking protrusion 200 also moves backward, thereby lifting the spring 6. Since the unlocking protrusion 200 and the main body of the fixing arm 20 are smooth connection, that is, the unlocking protrusion 200 and the main body of the fixing arm 20 are arc connection, therefore the spring 6 will be lifted upward along the smooth surface between the unlocking protrusion 200 and the main body of the fixing arm 20, and separated from the optical module, thereby achieving unlocking.

[0082] Based on the structure of the unlocking protrusion 200, in the preferred scheme, by setting the unlocking protrusion 200 at the end of the fixing arm 20 of the pull ring 2, when the pull ring 2 is pulled out, the unlocking protrusion 200 can lift the spring 6 for fixing the optical module by the switch, so that the installation and disassembly between the optical module and the switch is more simple and convenient.

[0083] In order to make the fixed arm 20 better fit the first groove 100 and the second groove 111, prevent the fixed arm 20 from deforming after long-term use and not being able to completely fit the groove bottom of the first groove 100 and the second groove 111, as shown in FIGS. 12 and 14, the top plane of the first groove 100 is provided with a sink 1001, which is arranged close to the first stop step 1000; the upper side of the fixed arm 20 is provided with a limiting protrusion 201, the width of the limiting protrusion 201 is less than the width of the sink 1001; as shown in FIG. 15, when the fixed arm 20 is located in the first groove 100 and the second groove 111, the limiting protrusion 201 is located in the sink 1001. Among them, considering the requirement that the arrangement of the sink 1001 and the limiting protrusion 201 cannot block the movement of the pull ring 2 relative to the packaging shell 1, therefore in the scheme it is mentioned that the width of the limiting protrusion 201 is less than the width of the sink 1001, that is, the distance that the fixed arm 20 can move relative to the packaging shell 1 is the width of the sink 1001 minus the width of the limiting protrusion 201, and the width difference between the sink 1001 and the limiting protrusion 201 should be able to ensure that the unlocking protrusion 200 can completely lift the spring sheet 6 of the switch, so that the spring sheet 6 does not contact the first stop step 1000 and the second stop step 1110.

[0084] In the foregoing scheme, it is mentioned that the cover plate 12 covers the second fixed plane 21, and the cover plate 12 is clamped and fixed with the base 11, wherein the specific way of clamping and fixing can be, as shown in FIGS. 16 and 17, the cover plate 12 is provided with a plurality of lock openings 120, 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 113, the lock heads 113 are located on the side of the base 11, the lock openings 120 and the lock heads 113 are correspondingly arranged, and when the lock head 113 is located in the lock opening 120, the cover plate 12 is fixedly connected with the base 11. In an embodiment, the first fixed plane 110 of the base 11 is provided with a baffle 117 close to one side of the fiber interface 1120, the outer side of the baffle 117 is provided with a lock head 113, the opposite side of the baffle 117 is provided with a boss 118, and the two sides of the boss 118 are respectively provided with a lock head 113; the cover plate 12 is processed to have three folded sides, the three folded sides are respectively located on the two sides of the cover plate 12 abutting against the boss and the side abutting against the outer side of the baffle 117, and the lock openings 120 are arranged on the three folded sides of the cover plate 12; when the pull ring 2 is assembled with the base 11, the torsional spring 3 is sleeved on the fixed protrusion 1100, the bent hook 30 hooks the clamping protrusion 211, and after the lock openings 120 of the cover plate 12 are locked with the lock heads 113 on the baffle 117 and the boss 118, as shown in FIG. 18, the inner bottom surface of the cover plate 12 abuts against the lower end of the clamping protrusion 211.

[0085] In addition to the above structure, as shown in FIG. 19, the inside of the packaging shell 1 is provided with a circuit board 4 and a disc fiber cover 5 for winding an optical fiber connected between an optical device and an optical fiber head provided on the circuit board 4. Details of this part will be described in subsequent embodiments.

[0086] In summary, according to the structural scheme provided by the embodiment of the present application, the embodiment of the present application further provides a use method of the optical module convenient to assemble, which is suitable for the optical module convenient to assemble described in the above scheme, and includes the following steps: aligning the fixing hole 210 of the pull ring 2 with the fixing protrusion 1100, making the second fixing plane 21 abut against the first fixing plane 110, sleeving the torsional spring 3 on the fixing protrusion 1100, making the hooks 30 on both sides of the torsional spring 3 abut against the outside of the clamping protrusion 211, and buckling and fixing the upper cover 10 and the base 11; pushing the pull ring 2, inserting the optical module into the switch, making the elastic sheet 6 of the switch abut against the blocking step on the base 11; when it is needed to pull out the optical module, pulling the pull ring 2, the torsional spring 3 is squeezed, the top end of the pull ring 2 pushes open the elastic sheet 6, so as to pull out the optical module from the switch.

[0087] In various embodiments of the present application, the improvements of the optical path structure and / or the circuit structure in the corresponding technical solutions are applicable to the packaging structures including but not limited to the Centum gigabits Form Pluggable (CFP) packaging, the Small Form-factor Pluggable (SFP) packaging, the Octal Small Form-factor Pluggable (OSFP) packaging, the Quad Small Form-factor Pluggable (QSFP) packaging, the 10-Gigabit Small Form Factor Pluggable (XFP) packaging, and the corresponding different models of the derivative versions of the above-mentioned packaging, such as the CFP2 packaging, the CFP4 packaging, and the CFP8 packaging under the derivative version of the CFP packaging; such as the QSFP+ packaging, the QSFP28 packaging, the QSFP56 packaging, and the Quad Small Form-factor Pluggable-Double Density (QSFP-DD) packaging under the extended version of the QSFP packaging, and the like. Since the packaging of the optical module is more of a shell type for adapting to the scene size customization, the optical path structure and / or the circuit structure theory proposed by the inventive labor of the present application should also be applicable to the possible packaging types proposed in the future without explicit technical conflicts, and therefore, it should also be understood as being within the protection scope of the present application.

[0088] Embodiment 2

[0089] The present application embodiment 2 is further described in detail on the basis of the disc fiber cover inside the packaging shell of embodiment 1.

[0090] The embodiment 2 of the present application provides a kind of optical module for cleaning optical fiber interface, as shown in Figure 20 and Figure 21, comprising: package shell 1, circuit board 4 and disc fiber cover 5;The circuit board 4 and the disc fiber cover 5 are located in the inside of the package shell 1, the optical device 46 is provided on the circuit board 4, and the disc fiber cover 5 covers the optical device 46 of the circuit board 4.The side of the circuit board 4 is provided with positioning notch 40, and the bottom of the package shell 1 is provided with positioning screw 114 to realize the positioning of the circuit board 4 in the package shell 1;Referring to Figure 22, the optical device 46 on the circuit board 4 includes transmitting optical sub-assembley (TOSA for short) and receiver optical subassembly (ROSA for short), wherein considering the size, layout and heat dissipation of the circuit board 4 and other factors, TOSA 44 is not directly provided on the circuit board 4, and TOSA 44 is designed and packaged as an independent module, so as to have better universality and maintainability, and also help to improve the overall performance and reliability of the optical module.

[0091] The package shell 1 includes upper cover 10 and base 11, and the upper cover 10 and the base 11 are fixedly connected, and one end of the base 11 is provided with optical fiber interface 1120;Specifically, the upper cover 10 and the base 11 can be fixedly connected by screws.As shown in Figure 22, the optical device on the circuit board 4 is connected with optical fiber pin 41, the optical fiber pin 41 includes front positioning column 42 and rear positioning column 43, the front positioning column 42 and the rear positioning column 43 are rotationally connected, the front positioning column 42 is inserted into the optical fiber interface 1120, and the rear positioning column 43 is clamped with the disc fiber cover 5;In one embodiment, the type of the optical fiber pin 41 can be Lucent connector (LC for short).As shown in Figure 22, Figure 23 and Figure 24, the rear positioning column 43 is provided with clamping disc 430, one end of the disc fiber cover 5 is provided with first clamping groove 50, the first clamping groove 50 is arranged on the side of the disc fiber cover 5 facing the optical fiber interface 1120, when the rear positioning column 43 is clamped in the first clamping groove 50, the clamping disc 430 abuts with the outer side wall of the disc fiber cover 5, and the clamping disc 430 is limited by the disc fiber cover 5 and cannot rotate;Wherein, the disc fiber cover 5 is used for coiling the optical fiber connected between all the optical devices 46 and the rear positioning column 43 and separating the optical devices 46.Specifically, a plurality of clamping claws 51 are arranged on the side of the disc fiber cover 5, and the clamping claws 51 are used for coiling the optical fiber connected between all the optical devices 46 and the rear positioning column 43.The upper surface of the disc fiber cover 5 includes skylight area and closed area, the clamping claws 51 are arranged above the frame of the skylight area and the upper surface of the closed area respectively.

[0092] The number of the optical fiber pins 41 is two, one of which is connected with the TOSA 44 and the other is connected with the ROSA 45, and the front positioning column 42 of the optical fiber pin 41 is provided with a light port at the front end thereof, which is used for light emission or light incidence.

[0093] Compared with the prior art in which the optical device 46 and the fiber coil cover 5 are independently arranged, the embodiment of the present application covers the fiber coil cover 5 on the optical device 46 area of the circuit board 4, realizes the coiling of the optical fiber on the fiber coil cover 5 without occupying the space in the packaging shell 1 for the layout of the optical device 46 and the circuit board 4, avoids the double-layer layout of the circuit board 4 in the optical module, improves the heat dissipation capacity of the optical module, and further improves the performance of the optical module.

[0094] In the second aspect, the rear positioning column 43 of the optical fiber pin 41 is provided with a clamping disc 430, the clamping disc 430 and the fiber coil cover 5 are matched to make the rear positioning column 43 of the optical fiber pin 41 unable to rotate, and then the optical fiber fixed on the rear positioning column 43 is also unable to be twisted, thereby solving the problem that the rear optical fiber is twisted and broken when the cleaning rod is used to clean the optical fiber interface 1120.

[0095] According to the structure provided by the above scheme, the structural details of the above scheme will be further described in detail below.

[0096] In the above scheme, it is mentioned that the clamping disc 430 abuts against the outer side wall of the fiber coil cover 5, and the clamping disc 430 is limited by the fiber coil cover 5 and cannot rotate, specifically, in one embodiment, as shown in FIGS. 23 and 24, the outer side bottom of the end face of the fiber coil cover 5 where the first clamping groove 50 is located is provided with an anti-rotation boss 52, and the bottom surface of the clamping disc 430 is a horizontal plane, when the rear positioning column 43 is clamped in the first clamping groove 50, the bottom surface of the clamping disc 430 abuts against the upper surface of the anti-rotation boss 52. The bottom of the clamping disc 430 is set as a plane, so that the plane abuts against the upper surface of the anti-rotation boss 52, which can ensure that the clamping disc 430 does not rotate; in addition, the plane on the clamping disc 430 does not necessarily need to be arranged at the bottom, but can also be arranged on the side or the top, and correspondingly, the anti-rotation boss 52 is adjusted according to the position of the plane of the clamping disc 430 to ensure that the plane of the clamping disc 430 can abut against the plane of the anti-rotation boss 52.

[0097] In the above structure, it is mentioned that the front positioning column 42 is inserted into the optical fiber interface 1120, and specifically, as shown in FIGS. 25 and 26, the inner end face of the base 11 is provided with a positioning hole 115, which is in communication with the optical fiber interface 1120, is located at the center of the optical fiber interface 1120, and is used to accommodate the front positioning column 42. Therefore, when the optical fiber ferrule 41 is installed, it is inserted into the inner part of the optical fiber interface 1120 from the positioning hole 115.

[0098] As shown in FIGS. 26 and 27, a double-hole wave-absorbing sheet 7 is arranged between the clamping disc 430 and the base 11, and two round holes 70 are arranged on the double-hole wave-absorbing sheet 7, which are used for the front positioning column 42 to pass through and be inserted into the positioning hole 115. The reason for arranging the double-hole wave-absorbing sheet 7 between the optical fiber interface 1120 and the optical fiber ferrule 41 is that the double-hole wave-absorbing sheet 7 is a kind of material that can absorb the electromagnetic wave energy projected onto its surface, and plays a role of absorbing the electromagnetic radiation that may be generated in the optical module, which helps to reduce the potential impact of electromagnetic radiation on equipment and the environment; secondly, the double-hole wave-absorbing sheet 7 can effectively absorb the leaked electromagnetic radiation, so as to achieve the purpose of removing electromagnetic interference, and can ensure the normal work of the optical module and improve the stability and reliability of the system; in addition to the above direct effects, the double-hole wave-absorbing sheet 7 can also optimize certain performance parameters of the optical module through its special structure and material properties, for example, through the design and application of the wave-absorbing material, the performance indicators such as insertion loss and return loss of the optical module can be improved.

[0099] Considering that the disc fiber cover 5 is arranged inside the packaging shell 1 and covers the optical device 46, even if the disc fiber cover 5 can be limited by the protruding optical device 46, but during the process of taking out or installing the optical module, the optical module will inevitably be inclined due to operation, and relying on the optical device 46 to limit or block the disc fiber cover 5 cannot completely guarantee the stability of the disc fiber cover 5 inside the packaging shell 1, therefore, as shown in FIGS. 28 and 29, the inner side of the upper cover 10 is provided with a clamping plate 101, and two second clamping grooves 1010 are arranged on the clamping plate 101, the second clamping grooves 1010 are semicircular, and the second clamping grooves 1010 are clamped with the rear positioning column 43; when the second clamping grooves 1010 are clamped with the rear positioning column 43, the outer side face of the clamping plate 101 abuts against the inner side face of the disc fiber cover 5, so as to limit the disc fiber cover 5. Since the upper cover 10 and the base 11 are fixedly connected, the clamping plate 101 arranged on the upper cover 10 limiting the disc fiber cover 5 can guarantee that the disc fiber cover 5 remains stable in a shaking environment.

[0100] In the process of buckling the upper cover 10 and the base 11, high precision is required to make the screw holes on the upper cover 10 and the base 11 for fixing, therefore, as shown in FIG. 30 and FIG. 31, the inside of the upper cover 10 is provided with positioning protrusions 102 on both sides, the outside contour of the positioning protrusions 102 is consistent with the inside edge of the corresponding area of the base 11; the inside of the base 11 is provided with positioning bosses 116, when the upper cover 10 and the base 11 are buckled, the lower surface of the positioning protrusions 102 and the upper surface of the positioning bosses 116 abut. In the installation process, the positioning protrusions 102 and the positioning bosses 116 are coupled, which can ensure the coupling precision between the upper cover 10 and the base 11.

[0101] The optical devices 46 in the optical module, especially the light active devices, are responsible for converting electrical signals into optical signals or converting optical signals into electrical signals, and these optical devices 46 will generate optical signals when working, if there is no proper isolation between the optical devices 46, the optical signals may interfere with each other, leading to signal quality degradation and affecting communication performance, therefore, as shown in FIG. 32 and FIG. 33, the upper surface of the disc fiber cover 5 is processed to be provided with an isolation plate 53, the isolation plate 53 is provided with at least one claw 51, the isolation plate 53 and the side of the disc fiber cover 5 form a containing cavity, the containing cavity is used to contain the optical devices 46 on the circuit board 4, the bottom surface of the isolation plate 53 is provided with a shielding partition plate 530, which isolates each of the optical devices 46. Among them, the area where the isolation plate 53 is located is the closed area of the disc fiber cover 5. Based on this, the isolation plate 53 can effectively prevent the crosstalk between the optical signals of the optical devices 46, and the high-sensitivity optoelectronic devices can quickly and accurately detect and convert optical signals, but if the distance between the optoelectronic devices is too close, they may be affected by the optical signals generated by each other, leading to a decrease in sensitivity and signal stability. The use of the isolation plate 53 can ensure the appropriate distance between the optoelectronic devices, thereby improving the stability of the signal.

[0102] In addition to the above structure, considering the heat dissipation requirement of the optical devices 46, as shown in FIG. 34 and FIG. 35, the optical module further comprises a heat sink 8, the heat sink 8 comprises a fitting surface 80 and a heat dissipation surface 81; the fitting surface 80 is fitted with the bottom surface of the circuit board 4, and the heat dissipation surface 81 is fitted with the bottom surface of the optical device 46. Specifically, in this embodiment, the heat dissipation surface 81 is fitted with the bottom surface of the TOSA 44, and as shown in the dashed line box area of FIG. 36, the inside of the base 11 is specially provided with a specific area for containing the heat sink 8.

[0103] In an actual application scenario, the chip provided on the circuit board 4 can include one or more of a microcontroller unit (MCU), a laser driving chip, a limiting amplifier, a clock and data recovery chip (CDR), a power management chip, and a digital signal processing (DSP) chip.

[0104] The circuit board 4 is generally a hard circuit board. Due to the relatively hard material of the hard circuit board, the hard circuit board can also achieve a bearing effect. For example, the hard circuit board can stably bear the electronic components and chips described above.

[0105] The gold fingers of the circuit board 4 are formed on the end surfaces thereof. The gold fingers are composed of a plurality of pins independent of each other. The circuit board 4 is inserted into the cage, and the gold fingers are in conductive connection with the electrical connectors in the cage. The gold fingers can be provided only on the surface of one side of the circuit board 4, or can be provided on the surfaces of the upper and lower sides of the circuit board 4 to adapt to occasions where a large number of pins are required. The gold fingers are configured to establish electrical connection with the upper computer to achieve power supply, grounding, I2C signal transmission, data signal transmission, and the like. Of course, a flexible circuit board can also be used in some optical modules. The flexible circuit board is generally used in cooperation with the hard circuit board to serve as a supplement to the hard circuit board. For example, the flexible circuit board is usually used to compensate for the alignment difference caused by fixing the laser and / or the detector in the BOSA device and the circuit board 4 in the optical module housing.

[0106] In summary, based on the above structure, the application embodiment further provides a use method of the optical module convenient for cleaning the fiber interface. As shown in FIG. 37, the use method of the optical module convenient for cleaning the fiber interface is applicable to the optical module convenient for cleaning the fiber interface described in the above scheme, and includes the following steps.

[0107] In step S1, the optical device 46 is mounted on the circuit board 4, and the optical device 46 and the optical fiber ferrule 41 are connected by an optical fiber.

[0108] In step S2, the disc fiber cover 5 is covered on the circuit board 4, the rear positioning column 43 of the optical fiber ferrule 41 is clamped with the first clamping groove 50 of the disc fiber cover 5, the clamping disc 430 is abutted with the outer side end surface of the disc fiber cover 5, and the optical fiber is wound on the disc fiber cover 5.

[0109] In step S3, the circuit board 4 and the disc fiber cover 5 are placed in the base 11, and the optical fiber ferrule 41 is inserted into the optical fiber interface 1120 from the inside of the base 11.

[0110] In step S4, the upper cover 10 and the base 11 are buckled and fixed, and the assembly is completed.

[0111] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A conveniently assembled optical module, characterized in that, The utility model relates to a kind of optical module, including: Encapsulation shell (1) and pull ring (2);The pull ring (2) includes fixed arm (20) respectively machined to be arranged in both sides, and the fixed arm (20) is slidably connected with the side of the encapsulation shell (1); The encapsulation shell (1) includes upper cover (10) and base (11), and the upper cover (10) and the base (11) are fixedly connected;The base (11) is provided with first fixed plane (110), and the first fixed plane (110) is machined to be provided with fixed protrusion (1100), and the pull ring (2) is provided with second fixed plane (21), and the second fixed plane (21) is located between the fixed arm (20), and the second fixed plane (21) is provided with fixed hole (210), and the fixed hole (210) is sleeved on the fixed protrusion (1100); The fixed protrusion (1100) is sleeved with torsion spring (3);The two sides of the torsion spring (3) are provided with hook (30), and the second fixed plane (21) of the pull ring (2) is provided with two clamping protrusions (211), and the clamping protrusions (211) are located on the two sides of the fixed hole (210), and the hook (30) hooks the outside of the clamping protrusion (211).

2. The optical module of claim 1, wherein, The two sides of the upper cover (10) are machined to be provided with first recess (100) for accommodating the fixed arm (20) respectively, and the two sides of the base (11) are machined to be provided with second recess (111) for accommodating the fixed arm (20) respectively, and the width sum of the first recess (100) and the second recess (111) matches the width of the fixed arm (20).

3. The easily assembled optical module according to claim 2, characterized in that, The top edge of the first recess (100) is machined to be provided with first stop step (1000), and the edge of the second recess (111) is machined to be provided with second stop step (1110), and the first stop step (1000) and the second stop step (1110) are located on the same horizontal line, when the optical module is inserted into switch, the first stop step (1000) and the second stop step (1110) are used for stopping the baffle (6) of the switch together.

4. The easily assembled optical module according to claim 3, characterized in that, The top end of the fixed arm (20) is provided with unlocking protrusion (200), when the fixed arm (20) is in natural state in the first recess (100) and the second recess (111), the horizontal edge of the fixed arm (20) on the two sides of the unlocking protrusion (200) abuts against the first stop step (1000) and the second stop step (1110), and the height of the unlocking protrusion (200) is higher than the height of the first stop step (1000) and the second stop step (1110).

5. The easily assembled optical module according to claim 4, characterized in that, The top plane of the first groove (100) is provided with a sink (1001), which is arranged close to the first stop step (1000); the upper side of the fixed arm (20) is provided with a limiting protrusion (201), the width of the limiting protrusion (201) is smaller than the width of the sink (1001); when the fixed arm (20) is located in the first groove (100) and the second groove (111), the limiting protrusion (201) is located in the sink (1001).

6. The easily assembled optical module of claim 1, wherein, The optical module further comprises a circuit board (4) and a disc fiber cover (5); the circuit board (4) and the disc fiber cover (5) are located inside the packaging shell (1), and the circuit board (4) is provided with optical devices (46); the disc fiber cover (5) covers the optical devices (46) of the circuit board (4). The optical devices on the circuit board (4) are connected with optical fiber pins (41), the optical fiber pins (41) comprise front positioning columns (42) and rear positioning columns (43), the front positioning columns (42) and the rear positioning columns (43) are rotationally connected, the front positioning columns (42) are inserted into optical fiber interfaces (1120), and the rear positioning columns (43) are clamped with the disc fiber cover (5). The rear positioning column (43) is provided with a clamping disc (430), one end of the disc fiber cover (5) is provided with a first clamping groove (50), the first clamping groove (50) is arranged on the side of the disc fiber cover (5) facing the optical fiber interface (1120), when the rear positioning column (43) is clamped in the first clamping groove (50), the clamping disc (430) abuts against the outer side wall of the disc fiber cover (5), and the clamping disc (430) is limited from rotating by the disc fiber cover (5); wherein the disc fiber cover (5) is used for coiling optical fibers connected between all the optical devices (46) and the rear positioning columns (43) and separating the optical devices (46).

7. The easily assembled optical module of claim 6, wherein, A plurality of clamping claws (51) are arranged on the side edge of the disc fiber cover (5), and the clamping claws (51) are used for coiling the optical fibers connected between all the optical devices (46) and the rear positioning columns (43).

8. The easily assembled optical module according to claim 6, characterized in that, The number of the optical fiber pins (41) is 2, one optical fiber pin (41) is connected with a TOSA (44), and the other optical fiber pin (41) is connected with a ROSA (45); the front end of the front positioning column (42) of the optical fiber pin (41) is provided with an optical port, and the optical port is used for emitting or receiving light.

9. The easily assembled optical module of claim 6, wherein, The end face outer side bottom of the disc fiber cover (5) where the first clamping groove (50) is located is provided with an anti-rotation boss (52), and the bottom surface of the clamping disc (430) is a horizontal plane; when the rear positioning column (43) is clamped in the first clamping groove (50), the bottom surface of the clamping disc (430) abuts against the upper surface of the anti-rotation boss (52).

10. The easily assembled optical module of claim 6, wherein, The inner end surface of the base (11) is provided with a positioning hole (115) in communication with the optical fiber interface (1120), the positioning hole (115) is located at the center position of the optical fiber interface (1120), and the positioning hole (115) is used for accommodating the front positioning column (42).

11. The easily assembled optical module according to claim 10, characterized in that, A double-hole wave-absorbing sheet (7) is arranged between the clamping disc (430) and the base (11), the double-hole wave-absorbing sheet (7) is provided with two round holes (70), and the round holes (70) are used for allowing the front positioning column (42) to pass through and be inserted into the positioning hole (115).

12. The easily assembled optical module of claim 6, wherein, The inner side of the upper cover (10) is provided with a clamping plate (101), the clamping plate (101) is provided with two second clamping grooves (1010), the second clamping grooves (1010) are semicircular, and the second clamping grooves (1010) are clamped with the rear positioning column (43); when the second clamping grooves (1010) are clamped with the rear positioning column (43), the outer side surface of the clamping plate (101) abuts against the inner side surface of the disc fiber cover (5), so as to limit the disc fiber cover (5).

13. The easily assembled optical module of claim 6, wherein, The inner sides of the upper cover (10) are respectively provided with positioning protrusions (102), the outer side contour forms of the positioning protrusions (102) are consistent with the inner side edge forms of the corresponding areas of the base (11); the inner sides of the base (11) are provided with positioning bosses (116), and the lower surface of the positioning protrusion (102) abuts against the upper surface of the positioning boss (116) when the upper cover (10) and the base (11) are buckled.

14. The easily assembled optical module of claim 6, wherein, The upper surface of the disc fiber cover (5) is provided with a separation plate (53), the separation plate (53) is provided with at least one clamping jaw (51), the separation plate (53) and the side edge of the disc fiber cover (5) form an accommodation cavity, the accommodation cavity is used for accommodating the optical device (46) located on the circuit board (4), and the bottom surface of the separation plate (53) is provided with a shielding partition plate (530), the shielding partition plate (530) separates each optical device (46).

15. The easily assembled optical module of claim 6, wherein, The optical module further comprises a heat sink (8), the heat sink (8) comprises a fitting surface (80) and a heat dissipation surface (81); the fitting surface (80) is fitted with the bottom surface of the circuit board (4), and the heat dissipation surface (81) is fitted with the bottom surface of the optical device (46).

16. The easily assembled optical module of claim 1, wherein, The optical module convenient to assemble further comprises a cover plate (12), the cover plate (12) is clamped with the base (11), and the cover plate (12) covers the second fixed plane (21).

17. The easily assembled optical module of claim 16, wherein, The cover plate (12) is provided with a plurality of lock openings (120), the lock openings (120) are located on the side surface of the cover plate (12), the base (11) is provided with a plurality of lock heads (113), the lock heads (113) are located on the side surface of the base (11), the lock openings (120) and the lock heads (113) are correspondingly arranged, and when the lock head (113) is located in the lock opening (120), the cover plate (12) is fixedly connected with the base (11).

18. The easily assembled optical module of any of claims 1-17, wherein, The fixing hole (210) is a waist-shaped hole.

19. The easily assembled optical module of any one of claims 1-17, wherein, The first fixed plane (110) is provided with two fixed protrusions (1100), and the torsion spring (3) comprises two annular portions, and each annular portion is sleeved on one fixed protrusion (1100); Alternatively, the first fixed plane (110) is provided with one fixed protrusion (1100), and two horizontal arms of the torsion spring (3) are in a preset angle state with the opening facing the opposite direction of the handle (22) in a natural state, and the connection part of the two horizontal arms is in a circular arc shape, and the circular arc shape is in abutment with the fixed protrusion (1100) and is limited by the fixed protrusion (1100); Alternatively, the first fixed plane (110) is provided with one fixed protrusion (1100) and a limiting boss (212), the connection part of the two horizontal arms of the torsion spring (3) is in a circular arc shape, and the fixed protrusion (1100) and the limiting boss (212) clamp and fix the circular arc part of the torsion spring (3), and the two horizontal arms of the torsion spring (3) are in a preset angle state with the opening facing the opposite direction of the handle (22) in a natural state.

20. A method of using an easy-to-assemble optical module, suitable for the easy-to-assemble optical module according to any one of claims 1 to 19, characterized in that, Comprise: Align the fixed hole (210) of the pull ring (2) with the fixed protrusion (1100), abut the second fixed plane (21) with the first fixed plane (110), and sleeve the torsion spring (3) on the fixed protrusion (1100), so that the hooks (30) on both sides of the torsion spring (3) abut the outer side of the clamping protrusion (211), and the upper cover (10) is buckled and fixed with the base (11); Push the pull ring (2) to insert the optical module into the switch, so that the elastic sheet (6) of the switch abuts against the blocking step on the base (11); When the optical module needs to be pulled out, pull the pull ring (2), the torsion spring (3) is squeezed, and the top end of the pull ring (2) pushes open the elastic sheet (6) to pull out the optical module from the switch.

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