WO2021248498A1

WO2021248498A1 - Pluggable optical module and optical communication apparatus

Info

Publication number: WO2021248498A1
Application number: PCT/CN2020/095969
Authority: WO
Inventors: 杨松; 朱喆
Original assignee: 华为技术有限公司
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-12-16
Also published as: CN115552304A

Abstract

Disclosed are a pluggable optical module and an optical communication apparatus. The optical module comprises: a housing having multiple faces, which are arranged in the circumferential direction and enclose an accommodation cavity; an optical device arranged in the accommodation cavity of the housing and used for implementing conversion between optical signals and electric signals; an elastic structural member sheathed over the housing and comprising main body portions which are arranged around the multiple faces of the housing and attached to the housing, wherein one end of each of the main body portions is provided with an elastic portion, and the other end thereof is provided with a bent portion; the elastic portion protrudes relative to the housing; the housing is provided with a groove; and the bent portion is bent towards the housing relative to the main body portion and is located in the groove. By means of the bent portion being provided on the elastic structural member and being fitted to the groove of the housing, the elastic structural member can be securely fixed on the housing of the optical module, so as to minimize the possibility of electromagnetic wave overflow and shield electromagnetic interference.

Description

Pluggable optical module and optical communication equipment

Technical field

This application belongs to the technical field of optical communication, and in particular relates to a pluggable optical module and optical communication equipment.

Background technique

As optical communication products increasingly tend to be miniaturized, highly integrated, and high-speed, optical modules with specifications such as SFP (Small Form-factor Pluggable) or SFP+ are also widely used.

The optical module is equipped with elastic structural parts. When the optical module is used with other equipment to realize the functions of photoelectric conversion or electro-optical conversion, the elastic structural parts will be connected between the housing of the optical module and other equipment to prevent Electromagnetic waves overflow and shield electromagnetic interference as much as possible. However, after the optical module is used multiple times, the elastic structure and the housing are easily loosened, and the shielding effect of the elastic structure is deteriorated.

Summary of the invention

The present application provides a pluggable optical module and optical communication equipment to improve the problem of the deterioration of the shielding effect of the elastic structure after the optical module is used multiple times.

In order to improve the above technical problems, the present application provides a pluggable optical module, including: a housing, the housing has a plurality of surfaces, the plurality of surfaces are arranged in a circumferential direction and surround a receiving cavity; The device is arranged in the accommodating cavity of the housing, and the optical device is used to realize the conversion between optical signals and electrical signals; an elastic structural member is sleeved on the housing, and the elastic structural member includes: The main body part is arranged around multiple surfaces of the casing and is attached to the casing; wherein, the main body part is provided with an elastic part at one end in the axial direction, The other end is provided with a bending part; the elastic part is convex relative to the housing; the housing is provided with a groove, and the bending part is bent toward the housing relative to the main body part , And located in the groove. It should be understood that through the cooperation of the bent portion and the groove of the housing, the elastic structural member and the edges of the elastic structural member are relatively difficult to contact the cage of other equipment; thus, the elastic structural member and the cage can be avoided to a certain extent. The mutual scratching between the optical modules ensures that the elastic structural member can still be well clamped between the housing and the cage after the optical module is used for many times, so as to shield electromagnetic interference and ensure the normal operation of the optical module.

In some embodiments, the housing further has a boss; the boss is located on one side of the groove and away from the elastic structural member. It should be understood that during the process of inserting the optical module into the cage, the boss will preferentially contact the inner wall of the cage. On the contrary, the boss will form a certain angle with the inner wall of the cage, and the bent part of the subsequent elastic structural member is less likely to contact the inner wall of the cage to ensure the smooth insertion and removal of the optical module; thus, the optical module is in use , The elastic structure can be well clamped between the shell and the cage to shield electromagnetic interference.

In some embodiments, the height difference between the boss and the groove is greater than the height difference between the main body and the groove; or, the height difference between the boss and the groove is equal to the main body The height difference with the groove. Based on this, in the process of plugging and unplugging the optical module, it is possible to prevent the edge of the bent part from scratching against the inner wall of the cage, reducing the possibility of deformation of the elastic structure during plugging and unplugging, so as to ensure the shielding effect of the elastic structure against electromagnetic waves. .

In some embodiments, the shape of the boss is a long strip, and the boss is arranged around one side of the groove. It should be understood that the elongated boss can increase the probability of contact with the inner wall of the cage to smoothly plug and unplug the optical module.

In some embodiments, the number of the protrusions is multiple, and the plurality of protrusions are spaced apart on one side of the groove. It should be understood that the multiple bosses can also increase the possibility of contact with the inner wall of the cage, so as to facilitate smooth insertion and removal of the optical module.

In some embodiments, the included angle between the bent portion and the main body portion is 8°-20°. Based on the relatively small included angle of the angle, in the manufacturing process of the elastic structural member, it is possible to facilitate the formation of the bending portion, so as to improve the manufacturing efficiency of the elastic structural member. In the process of inserting or pulling out the optical module from the cage, due to the small included angle between the main body and the bending part, even if there is the possibility that the inner wall of the cage may contact the bending part, the transition from the main body to the main body is relatively smooth. The part is in contact with the inner wall of the cage; therefore, there is no sense of jamming during the process of plugging and unplugging the optical module, so as to reduce the possibility of deformation of the elastic structural member to ensure the shielding effect and improve the use experience of the optical module.

The embodiment of the present application also provides another pluggable optical module, including: a housing, the housing has a plurality of surfaces, and the plurality of surfaces are arranged in a circumferential direction and surround a receiving cavity; the optical device is arranged In the accommodating cavity of the housing, the optical device is used to realize the conversion between the optical signal and the electrical signal; Body fit; wherein the main body is provided with an elastic part at one end in the axial direction; the elastic part is convex relative to the housing; the housing has a boss, and the boss is located at the One side of the elastic structural member is away from the elastic part. It should be understood that based on the structure of the boss, during the process of inserting the optical module into the cage, the boss will preferentially contact the inner wall of the cage. In contrast, the boss will form a certain angle with the inner wall of the cage, and the bent part of the subsequent elastic structural member is less likely to touch the inner wall of the cage to ensure smooth insertion and removal of the optical module. Based on the structure of the boss, after the optical module is used for many times, the elastic structural member can still be well clamped between the housing and the cage to shield electromagnetic interference.

In some embodiments, the optical module further includes a conductive rubber ring, and the conductive rubber ring is configured to be sleeved on the transceiver end of the optical device. An optical port is provided in the housing, and the optical port is used for inserting the transceiver end of the optical device; the conductive rubber ring is sealed between the transceiver and the housing. Based on this, the conductive rubber ring can be matched with the shell, the elastic structure and the cage to shield the electromagnetic interference of the optical port and ensure the normal operation of the optical module.

In some embodiments, the elastic portion includes a plurality of resisting pieces arranged at intervals, a gap is formed between two adjacent resisting pieces, one end of the gap is an open end, and the other end is a closed end. It is an arc-shaped notch formed on the main body. Based on this, the width of the connecting end of each resisting piece is smaller than that of other ends (such as the free end or the resisting end), so as to reduce the stress caused by the elastic deformation of the resisting piece, and it is convenient for users to insert and remove the optical module. In addition, based on these notches, the bending stress of the main body can also be reduced, so that the main body can be bent to form a plurality of surfaces, which are adapted to the outer contour of the housing.

In some embodiments, the housing includes a top surface, a first side surface, a bottom surface, and a second side surface that are connected in sequence; a positioning column is provided on the top surface, and a buckle is provided on the bottom surface; the main body includes The first part, the second part and the third part are connected in sequence; the first part is attached to the first side surface, the second part is attached to the top surface, and the third part is attached to the first side. The two sides are attached to each other; the main body part further includes two buckle parts, the two buckle parts are respectively connected with the first part and the third part, and are both far away from the second part; The second part is provided with a positioning hole, and the two buckle parts are both provided with a card slot; the positioning hole is used for the positioning post to pass through; the card slot is used for the buckle to buckle. Based on this, the elastic structure can be relatively stably arranged on the housing through the cooperation of the positioning hole, the slot, the positioning column and the buckle, so that the elastic structure can realize the related functions of connection, guidance and shielding.

In some embodiments, the junction between the bent part and the main body part smoothly transitions. Based on this, there is no relatively obvious crease at the junction of the bending part and the main body part. During the process of inserting or pulling out the optical module into the cage, even if the cage touches the bending part of the elastic structural member, it can smoothly transition to the contact between the main body and the cage without problems such as jamming and scratching. In order to improve the use effect of the optical module.

In some embodiments, the resisting piece has a convex arc shape. The convex arc-shaped resisting piece includes a connecting end, a resisting end and a free end. The resisting end is located between the connecting end and the free end. The connecting end is connected to the main body; the abutting end is used to abut the inner wall of the cage after the optical module is inserted into the cage; the free end is used to insert the optical module into the cage Afterwards, it is pressed down to resist the shell based on the elastic deformation, thereby realizing the electrical connection between the shell, the elastic structural member and the cage.

The present application also provides an optical communication device, including: a cage, and the optical module in each of the foregoing embodiments. The optical module is used to be inserted into the cage and used in conjunction with the cage. Wherein, after the optical module is inserted into the cage, the elastic structural member can be stably clamped between the housing and the cage; thus, through the cooperation of the housing, the elastic structural member and the cage Shield electromagnetic interference. In some embodiments, the optical communication device may be a router or a base station.

In this application, a bending part is provided on the elastic structure to fit the groove of the housing, or a boss is provided on the housing to reduce the possibility of the elastic structure and the inner wall of the cage being scraped against each other, so as to ensure that the optical module is in place. It can be plugged and unplugged smoothly after multiple uses. Based on this, the elastic structure can be well fixed on the housing of the optical module to reduce the possibility of electromagnetic wave overflow and shield electromagnetic interference as much as possible.

Description of the drawings

Fig. 1 is a three-dimensional schematic diagram of an optical module and a cage according to an embodiment of the present application.

Fig. 2 is a top view of an optical module according to an embodiment of the present application.

Fig. 3 is an exploded schematic diagram of an optical module according to an embodiment of the present application.

Fig. 4 is a partial enlarged schematic diagram of the optical module in Fig. 2 in area I.

Fig. 5 is a schematic diagram of an elastic structural member according to an embodiment of the present application.

Fig. 6 is a partial enlarged schematic diagram of the optical module in Fig. 2 in the II area.

Fig. 7 is a three-dimensional schematic diagram of a housing according to an embodiment of the present application.

Fig. 8 is a three-dimensional schematic diagram of a housing according to another embodiment of the present application.

Fig. 9 is a schematic diagram of an upper shell of an embodiment of the present application.

Fig. 10 is a schematic diagram of a lower case of an embodiment of the present application.

Fig. 11 is a perspective view of an optical module according to an embodiment of the present application.

detailed description

In order to have a clearer understanding of the technical features, purpose and effects of the application, specific implementations of the application will now be described in detail with reference to the accompanying drawings.

The optical module can be used in conjunction with other equipment to realize functions such as photoelectric conversion and/or electro-optical conversion. For example, one end of the optical module can be inserted into the cage of other equipment, the optical module is equipped with an optical device, and the transceiver end of the optical device is located at the other end of the optical module. The transceiver end of the optical device can be connected to the adapter end of the optical fiber, so that the optical module can realize the conversion and transmission of photoelectric signals between the optical fiber and other equipment. Correspondingly, the optical module will be provided with an elastic structural member, and the elastic structural member is in contact with the cage to prevent electromagnetic waves from overflowing and realize shielding of electromagnetic interference. Based on the need for shielding, the optical module will set the elastic structure outside the shell and surround the shell; when the optical module is inserted into the cage, the elastic structure is located between the shell and the cage to connect the cage and the shell and realize Shielding function.

However, precisely because the elastic structural member is arranged outside the housing, the elastic structural member will protrude relative to the housing. When the user inserts or pulls out the optical module into the cage, based on the raised elastic structure, the optical module and the cage are prone to misalignment and jamming problems, which causes the optical module to be unable to be inserted or pulled out smoothly. cage. In addition, in the process of inserting or pulling out the cage, the elastic structural member is also easy to scrape against the inner wall of the cage. However, due to the relatively sharp edges of the elastic structural members, this will also wear the inner wall of the cage to a certain extent, and increase the friction coefficient of the inner wall of the cage; subsequent jams and scratches between the optical module and the cage are more likely to occur. problem.

It should be understood that, based on the problems of blocking and scratching between the optical module and the cage, the inner wall of the cage and the elastic structural members are easily scratched during the blocking or scratching of the optical module, and the elastic structural members are also easy to appear. Irreversible deformation, which leads to problems such as looseness and poor contact between the elastic structure and the housing of the optical module; accordingly, the shielding effect of the elastic structure Signal conversion and transmission.

In order to improve the above problems, the embodiments of the present application provide an optical module and an optical communication device using the optical module. Based on the design of the elastic structure and housing of the optical module, the smoothness of the optical module insertion and removal cage can be improved. , To ensure the shielding effect of the elastic structure against electromagnetic waves, so as to improve the use experience. It should be understood that the optical communication device may be a router or a base station, but is not limited to this.

Please refer to FIG. 1 to FIG. 11, a pluggable optical module 100 provided by an embodiment of the present application. The optical module 100 can be smoothly inserted or pulled out of the cage 200 to reduce the possibility of scratching with the cage 200. It should be understood that the optical module 100 of each embodiment may include SFP, SFP+, QSFP and other types of optical modules 100, which is not limited.

Please refer to FIG. 1, FIG. 2 and FIG. 3 simultaneously. The optical module 100 includes a housing 110 and an elastic structure 120. The housing 110 has a plurality of surfaces that are arranged in a circumferential direction and surround a receiving cavity. The accommodating cavity can accommodate related electronic components to realize functions such as photoelectric conversion and/or electro-optical conversion. It should be understood that the shape of the housing 110 of each embodiment is generally exemplified as a quadrangular prism. As shown in Figures 1 to 3, in each embodiment, the length direction of the quadrangular prism is defined as the axial direction, and the direction surrounding the axial direction is defined as the circumferential direction; it should be understood that the length direction or the axial direction also refers to inserting the optical module 100 into the cage 200 in the direction. In other embodiments, the shape of the housing of the optical module can be changed according to requirements; for example, the shape of the housing can be substantially a triangular prism, a cylinder, or a semi-cylindrical, etc., which is not limited in this application.

Referring to FIG. 3, in some embodiments, the housing 110 of the optical module 100 may be formed by a combination of two parts. For example, the housing 110 includes an upper housing 112 and a lower housing 114 opposed to each other, and the upper housing 112 and the lower housing 114 are fixed by a detachable connection such as a threaded connection, a snap connection, or the like.

In some other embodiments, the housing of the optical module may be composed of at least three parts; for example, the housing includes a front cover, a rear cover, and a bottom case. The front cover and the back cover are detachably connected to the bottom case. No restrictions.

Please refer to FIGS. 4 and 5 simultaneously. In order to reduce the possibility of the optical module 100 being scratched against the cage 200 during the process of inserting or pulling out the cage 200, the housing 110 of each embodiment has a groove 116, which can provide elasticity. The structural member 120 extends in to accommodate the edge of the elastic structural member 120. Correspondingly, the edges of the elastic structural member 120 and the elastic structural member 120 are not easy to touch the cage, which can prevent the elastic structural member 120 and the cage from scraping each other to a certain extent, so as to reduce the light module 100 and the cage. The abrasion between the inner walls ensures that the inner wall of the cage and the elastic structural member 120 maintain a relatively smooth surface (that is, a low coefficient of friction), so as to achieve smooth insertion and removal.

Please refer to FIG. 4 and FIG. 5 simultaneously. The elastic structure 120 of each embodiment includes a main body 122 and a bending portion 124. The main body 122 of the elastic structural member 120 includes a plurality of connected parts, and each two adjacent parts have a certain angle between each other, so that the main body 122 has a "C" shape as a whole. The "C"-shaped main body 122 can wrap around the outer surface of the housing 110 and clamp the housing 110 to fit the housing 110 as much as possible.

Therefore, while the elastic structure 120 is sleeved on the housing 110, it is also convenient for the housing 110 and the elastic structure 120 to be tightly connected to ensure the shielding effect of the optical module 100 against electromagnetic interference during operation. It should be understood that the sheathing means that the elastic structure 120 can stably clamp the housing 110 through its "C"-shaped main body 122, and the elastic structure 120 is not required to surround the housing 110 in a 360° manner.

In some embodiments, corresponding to the structure of the groove 116 of the casing 110, the bending portion 124 of the elastic structure 120 is located on one side of the main body 122 and is bent toward the casing 110 relative to the main body 122. It should be understood that, as shown in FIG. 4 and FIG. 5, a bending portion 124 is provided at one end of each part of the main body portion 122. For example, if the main body includes five parts connected in sequence, one end of the five parts will all be provided with a bent part. In this way, during the process of inserting and pulling out the optical module into the cage, based on the structure of the bent portion, the possibility of scratching between the elastic structural member and the cage can be reduced. After the optical module is used multiple times, the elastic structural member can still be well fixed between the housing and the cage to reduce the possibility of electromagnetic wave overflow.

It should be understood that the edge of the bent portion 124 is the edge of the elastic structure 120. As shown in Figure 4, after the elastic structural member 120 is sleeved on the housing 110, the main body 122 of the elastic structural member 120 can be attached to the housing 110; correspondingly, the bent portion 124 falls Into the groove 116.

In some embodiments, relative to the main body 122, the bent portion 124 can be bent to contact the groove 116; or, the bent portion 124 has a smaller degree of bending and does not touch the groove 116. This is determined based on factors such as the depth of the groove 116, the length/thickness of the bending portion 124, and the angle between the bending portion 124 and the main body 122, which are not limited in this application.

Through the cooperation of the groove 116 of the housing 110, the main body 122 of the elastic structural member 120, and the bending portion 124, the bending portion 124 is not easy to contact the cage during the process of inserting or pulling out the optical module 100 into or out of the cage. , The elastic structure 120 and its edges are not easy to scratch against the inner wall of the cage, thereby reducing the possibility of scratching the surface of the elastic structure 120 and the inner wall of the cage, thereby extending the elastic structure 120 and using the elasticity. The service life of the optical module 100 of the structural member 120.

Please refer to FIG. 5. In some embodiments, the shape of the bent portion 124 is a long strip. Correspondingly, the groove 116 is a strip-shaped groove 116 so as to accommodate the bent portion 124.

Please refer to FIG. 4 again. In some embodiments, the included angle α between the elongated bent portion 124 and the main body 122 is 8°-20°, for example, between the bent portion 124 and the main body 122 The included angle α is 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18° or 19°. It should be understood that, based on the relatively small included angle α, in the manufacturing process of the elastic structure 120, the bending portion 124 can be easily formed to improve the manufacturing efficiency of the elastic structure 120. In the process of inserting or pulling out the optical module 100 from the cage, since the included angle α between the main body 122 and the bent portion 124 is small (that is, the main body 122 and the bent portion 124 are relatively flat), even if there is It is possible for the inner wall of the cage to contact the bent portion 124, and it can also transition relatively smoothly to the contact between the main body 122 and the inner wall of the cage; therefore, there is no feeling of jamming during the process of plugging and unplugging the optical module 100. In order to improve the use experience of the optical module 100.

In some other embodiments, the shape of the bent portion is an arc curved toward the groove. As a result, a smooth transition can be achieved between the bent portion and the main body portion, and relatively obvious creases will not be formed at the junction of the bent portion and the main body portion. Based on this, in the process of inserting or pulling out the optical module into the cage, even if the cage contacts the bending part of the elastic structure, it can smoothly transition to the contact between the main body and the cage, and it is not easy to jam and scratch. In order to ensure the shielding effect of the elastic structure against electromagnetic waves and improve the use effect of the optical module.

As analyzed above, in the optical module 100 of each embodiment, the boundary between the bent portion 124 of the elastic structural member 120 and the main body portion 122 is relatively gentle. In some embodiments, even if the bent portion 124 contacts the inner wall of the cage, as the optical module 100 is inserted, the optical module 100 can smoothly transition to the contact between the main body 122 and the inner wall of the cage; In the process of pulling out the cage, the contact between the main body 122 and the inner wall of the cage can also smoothly transition to the contact between the bent portion 124 and the inner wall of the cage. Based on this, through the cooperation of the bent portion 124 and the main body 122, the optical module 100 actually plays a guiding role in the process of guiding the user to insert and remove the optical module 100.

Please refer to FIGS. 5 and 6 simultaneously. The elastic structure 120 of each embodiment further includes an elastic portion 126, which is located on the side of the main body 122 away from the bending portion 124; that is, along the axis of the optical module 100 In the opposite direction, the main body 122 of the elastic structure 120 is located between the bent portion 124 and the elastic portion 126. It should be understood that, relative to each part of the main body, one end of each part is provided with a bending part, and the other end is provided with an elastic part. Different from the bent portion 124, the elastic portion 126 is convex relative to the main body portion 122 and has a certain elastic deformation ability. Therefore, during the process of inserting the optical module 100 into the cage, the elastic portion 126 first contacts the cage, and is gradually bent in the direction of the housing 110 by means of elastic deformation under external force. It should be understood that when the optical module 100 is inserted into the cage, the elastic portion 126 is held between the inner wall of the cage and the housing 110; therefore, the optical module 100 can be matched with the cage through the housing 110 and the elastic structure 120 to Realize the shielding of electromagnetic interference.

In some embodiments, the elastic portion 126 includes a plurality of resisting pieces 128, the plurality of resisting pieces 128 are arranged at intervals, and all of them can be clamped between the housing 110 and the cage in a manner of elastic deformation. Each resisting piece 128 has a convex arc shape and has opposite connecting ends 128a, resisting ends 128b, and free ends 128c. The resisting ends 128b are located between the connecting ends 128a and the free ends 128c. Among them, the connecting end 128a is connected to the main body 122; the resisting end 128b is used to contact the inner wall of the cage for electrical connection; the free end 128c is the end of the resisting piece 128 away from the main body 122, when the optical module 100 is inserted After the cage, the free end 128c is pressed down to contact with the housing 110 based on elastic deformation, so as to improve the overall connection effect of the housing 110, the elastic structural member 120 and the cage to ensure the effect of shielding electromagnetic interference.

In some embodiments, a gap is formed between two adjacent resisting pieces 128. One end of the gap is an open end, that is, an end away from the main body 122. The other end of the gap is a closed end; wherein, the closed end is an arc-shaped notch 123 formed on the main body 122. Based on the arc-shaped notch 123, the width of the connecting end 128a of each resisting piece 128 is smaller than that of the other ends (such as the free end 128c or the resisting end 128b), so as to reduce the elastic deformation stress of the resisting piece 128 and facilitate The user plugs and unplugs the optical module 100. In addition, based on the notches 123, the bending stress of the main body 122 can also be reduced, so that the main body 122 is bent to form multiple parts, which are adapted to the outer contour of the housing 110.

Please refer to FIGS. 3 and 4 again. In order to enable the optical module 100 to smoothly realize the plugging and unplugging operation, the optical module 100 of each embodiment is provided with a groove 116 on the housing 110 as well as on the housing 110. The boss 118 is provided to reduce the possibility of the optical module 100 being stuck. The boss 118 is located on the side of the groove 116 away from the elastic structure 120. In the process of inserting the optical module 100 into the cage, the boss 118 of the housing 110 will first extend into the cage, and then the elastic structural member 120 will extend into the cage. Based on this, in the process of inserting the optical module 100 into the cage, the boss 118 will preferentially contact the inner wall of the cage; on the contrary, a certain angle will be formed between the boss 118 and the inner wall of the cage. The bent portion 124 is less likely to touch the inner wall of the cage, so as to ensure the smooth insertion and removal of the optical module 100.

Please refer to FIGS. 3 and 4 simultaneously. In some embodiments, the shape of the housing 110 is generally a quadrangular prism as an example. The quadrangular prism housing 110 has four opposite side walls. A reference plane P is defined on each side wall of the housing 110. Correspondingly, the boss 118 is a structure formed by the housing 110 being raised relative to the reference plane P, and the groove 116 is formed by the housing 110 facing the reference plane P. The structure formed by the reference plane P being recessed. It should be understood that in the process of plugging and unplugging the optical module 100, each reference plane P and the boss 118 are relatively easy to contact the inner wall of the cage; for this, the edge of the boss 118 is rounded or chamfered. Based on this, when the inner wall of the cage is in contact with the housing 110, the transition from the reference plane to the boss 118 can be relatively smooth, so as to reduce (during the transition from the reference plane P to the boss 118) the optical module and the cage. There may be stuck or scratched between. Based on this, after the optical module 100 is used multiple times, the elastic structure 120 can still be well fixed on the housing 110. When the optical module 100 is subsequently used in conjunction with a cage, the elastic structure 120 can be stably clamped between the housing 110 and the cage to shield electromagnetic interference and ensure the normal operation of the optical module 100.

In general, the size of the cage is larger than the size of the optical module 100, so that the optical module 100 can be inserted into the cage; this can be analogous to the size relationship between a drawer and a cabinet. Based on this, in the process of inserting or removing the optical module 100, the optical module 100 may not face the cage directly. In some possible implementations, relative to the inner wall of the cage, the optical module 100 may be inserted or pulled out at a certain angle. This makes it easier for the elastic structure of the optical module to scratch against the inner wall of the cage, and leads to poor insertion and removal of the optical module.

It should be understood that the more frequent the light module and the cage are scraped, the easier it is for the elastic structural member to deform and become loose relative to the housing. Therefore, after the optical module is used for a certain number of times, a gap for the relative movement of the elastic structure is easily formed between the elastic structure and the housing. The gap prevents the elastic structure from being tightly arranged on the housing. The shielding effect of electromagnetic waves will also deteriorate. In the optical module 100 of the various embodiments of the present application, the cooperation of the boss 118 and the groove 116 of the housing 110, the main body 122 and the bending part 124 of the elastic structure 120 can reduce the optical module 100 and the cage. The probability of scratching on the inner wall ensures that the elastic structure 120 can still be relatively tightly arranged on the housing 110 after multiple uses, so as to realize the smooth insertion and removal of the optical module 100 and ensure the shielding effect of the elastic structure 120 on electromagnetic waves .

In the optical module 100 of each embodiment of the present application, the height difference between the boss 118 and the groove 116 is greater than the height difference between the main body 122 and the groove 116; or, the height difference between the boss 118 and the groove 116 The height difference is equal to the height difference between the main body 122 and the groove 116. Correspondingly, during the process of plugging and unplugging the optical module 100, the edge of the bent portion 124 can be prevented from scraping against the inner wall of the cage, so as to ensure the shielding effect of the elastic structure 120. In addition, based on the structure of the boss 118, the possibility of the inner wall of the cage being scratched can also be reduced.

Please refer to FIG. 7, in some embodiments, the boss 118 is elongated and is provided along one side of the groove 116. The elongated boss 118 can increase the probability of contact with the inner wall of the cage, so that the optical module 100 can be inserted and removed smoothly.

Please refer to FIG. 8, in some other embodiments, the number of the bosses 118 is multiple, and the plurality of bosses 118 are arranged at intervals on the side of the groove 116 away from the elastic structure 120. Similar to the elongated bosses, the plurality of bosses 118 can also increase the possibility of contact with the inner wall of the cage, so as to facilitate the smooth insertion and removal of the optical module 100.

Please refer to FIGS. 5, 9 and 10 simultaneously. In some embodiments, the housing 110 includes a top surface 110a, a first side surface 110b, a second side surface 110c, and a bottom surface 110d. Among them, the first side surface 110b is connected between the top surface 110a and the bottom surface 110d, the second side surface 110c is also connected between the top surface 110a and the bottom surface 110d; the top surface 110a, the first side surface 110b, the second side surface 110c and the bottom surface 110d are common The enclosure forms a cavity to accommodate electronic components such as optical devices.

As shown in FIG. 5, corresponding to the structure of the housing 110, the main body 122 includes a buckle portion 122e, a first portion 122a, a second portion 122b, a third portion 122c, and a buckle portion 122d that are connected in sequence. Among them, the first portion 122a is attached to the first side surface 110b, the second portion 122b is attached to the top surface 110a, the third portion 122c is attached to the second side surface 110c, and the two buckle portions (122d, 122e) are attached All are attached to the bottom surface 110d. Along the axial direction of the optical module 100, one end of the five parts (122a-122e) is provided with an elastic portion 126, and the other end is provided with a bending portion 124, so as to facilitate the smooth insertion and removal of the optical module 100 and ensure the elastic structure 120 shielding effect.

In some embodiments, in order to facilitate fixing the elastic structural member 120 on the housing 110, the second portion 122b of the elastic structural member 120 has a positioning hole 120a, and the two buckle portions (122d, 122e) each have a slot 120b. . Correspondingly, the top surface 110a of the housing 110 is provided with a positioning post 110e, and the bottom surface 110d is provided with a buckle 110f. The positioning post 110e can pass through the positioning hole 120a to determine the installation position of the elastic structure 120. The buckle 110f can be buckled with the groove 120b to fix the elastic structure 120 on the housing 110. Thus, through the cooperation of the positioning hole 120a, the card slot 120b, the positioning post 110e and the buckle 110f, the elastic structural member 120 can be relatively stably arranged on the housing 110, so that the elastic structural member 120 can realize related connection, guidance and Shield and other functions.

In some embodiments, since the positioning holes 120a and the grooves 120b are located on different parts of the main body 122, the main body 122 of the elastic structure 120 can be fixed at multiple angles to ensure that the elastic structure 120 and the housing 110 are tight. fit.

In some embodiments, the functions of the groove 116 and the boss 118 are related but there are certain differences. Therefore, the optical module 100 of each embodiment can also use the structure of the boss 118 alone, without necessarily matching the groove 116. And an elastic structural member 120 having a bent portion 124. That is, the housing 110 of the optical module 100 provided by each embodiment may only have the structure of the boss 118 without the groove 116. Correspondingly, the elastic structural member 120 may also have only the main body 122 and the elastic portion 126 without the bending portion 124.

It should be understood that based on the structure of the boss 118, during the process of inserting the optical module 100 into the cage, the boss 118 will preferentially contact the inner wall of the cage; on the contrary, the boss 118 will form a certain angle with the inner wall of the cage. The angle makes it difficult for the edge of the elastic structural member 120 to contact the inner wall of the cage, and can also ensure the smooth insertion and removal of the optical module 100. After the optical module 100 is used multiple times, the elastic structural member 120 can still be stably fixed on the housing 110; when the optical module 100 is subsequently used, the elastic structural member 120 can also be clamped between the housing 110 and the cage to shield Electromagnetic interference ensures the normal operation of the optical module 100.

It should be understood that the number of bosses 118 in each embodiment is not necessarily limited to the same as the number of grooves 116, that is, the number of bosses 118 may be less than or equal to the number of grooves 116. It should be understood that the number of grooves 116 is determined based on the configuration of the bending portion 124. Hereinafter, the relationship between the groove 116 and the boss 118 will be described as an example. As shown in FIG. 5, since the main body 122 of the elastic structural member 120 has five parts; correspondingly, the bending part 124 is bent inward with respect to the main body 122, This causes the housing (112, 114) as exemplified in FIGS. 9 and 10 to have five grooves 116. The five grooves 116 can fully accommodate the bending portion 124 of the elastic structural member 120, so that the bending portion 124 can play a guiding role during the insertion and removal of the optical module 100.

In order to realize the smooth insertion and removal of the optical module 100, please refer to FIGS. 7, 9 and 10 simultaneously. The housing 110 after the upper housing 112 and the lower housing 114 are detachably connected is an example, and the number of bosses 118 is two examples. , And are located on both sides of the housing 110, respectively. It should be understood that based on the usage habits of some users, there will be slight side-to-side shaking of the optical module during the process of plugging and unplugging the optical module. This shaking can easily cause problems such as jamming and scratching between the elastic structural member and the inner wall of the cage. When the optical module 100 of each embodiment of the present application shakes, the bosses 118 on both sides of the housing 110 are in contact with the inner wall of the cage, so that the above-mentioned jamming, scratching and other problems can be reduced, so as to make the elastic structure The member 120 is well fixed on the housing 110, thereby achieving smooth insertion and removal of the optical module 100 and ensuring the shielding effect of the elastic structural member 120 on electromagnetic waves.

As analyzed above, the optical module 100 can be used in conjunction with optical fibers (not shown in the figure) and other devices where the cage is located to realize functions such as photoelectric conversion and/or electro-optical conversion. Correspondingly, the optical module 100 of each embodiment further includes an optical device 130; the housing 110 of the optical module 100 will be provided with an optical port (not labeled) for the transceiver end 132 of the optical device 130 to be inserted. It should be understood that the transceiver end 132 of the optical device 130 may be connected to the adapter end of the optical fiber to implement optical signal transmission. Since the optical port contains the main body of the optical device 130, during the conversion and transmission of the photoelectric signal, the main body of the optical device 130 may have electromagnetic interference and affect the transmission of the optical signal. In this regard, please refer to FIG. 11. In order to improve the shielding effect of the optical port, the optical module 100 of each embodiment further includes a conductive rubber ring 140. The conductive rubber ring 140 has elasticity and can be stretched to a certain extent so as to be sleeved on the transceiver end 132 of the optical device 130. When the transceiver end 132 of the optical device 130 is inserted into the optical port, the conductive rubber ring 140 is sealed between the housing 110 and the transceiver end 132 of the optical device 130. Based on this, the conductive rubber ring 140 can be connected to the housing 110 and the elastic structure. The component 120 cooperates with the cage to shield the electromagnetic interference of the optical port and ensure the normal operation of the optical module 100.

Please refer to FIGS. 1 to 11 simultaneously. In some embodiments, the optical module 100 needs to be assembled before the optical module is inserted into the cage. Taking the housing 110 including the upper housing 112 and the lower housing 114 as an example, the conductive rubber ring 140 is first sleeved on the transmitting and receiving end 132 of the optical device 130, and then the transmitting and receiving end 132 of the optical device 130 is placed on the specific side of the lower housing 114. Location. The upper shell 112 and the lower shell 114 are detachably connected to fix the transceiver terminal 132 between the upper shell 112 and the lower shell 114. It should be understood that since the conductive rubber ring 140 is ring-shaped, after the optical module 100 is assembled, the ring-shaped conductive rubber ring 140 can surround the transceiver end 132 of the optical device 130 at 360°. 140. A gap is formed between the transmitting and receiving terminal 132 and the housing 110, so that a good shielding effect can be provided and collision between the transmitting and receiving terminal 132 and the housing 110 can be prevented.

The above disclosures are only specific embodiments of the application, but the application is not limited thereto, and those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. Obviously, these changes and modifications should fall within the protection scope required by this application. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any special restrictions on this application.

Claims

A pluggable optical module, which is characterized in that it comprises:

A housing, the housing having a plurality of surfaces, the plurality of surfaces are arranged in a circumferential direction and surround to form a containing cavity;

The optical device is arranged in the accommodating cavity of the housing, and the optical device is used to realize the conversion between the optical signal and the electrical signal;

The elastic structural member is sleeved on the housing, and the elastic structural member includes:

The main body part is arranged around multiple surfaces of the casing and is attached to the casing; wherein, the main body part is provided with an elastic part at one end in the axial direction, The other end is provided with a bending part; the elastic part is convex relative to the housing; the housing is provided with a groove, and the bending part is bent toward the housing relative to the main body part , And located in the groove.
The optical module of claim 1, wherein a boss is further provided on the housing; the boss is located on one side of the groove and away from the elastic structural member.
3. The optical module of claim 2, wherein the height difference between the boss and the groove is greater than the height difference between the main body and the groove;

or,

The height difference between the boss and the groove is equal to the height difference between the main body and the groove.
The optical module according to claim 2 or 3, wherein the shape of the boss is a long strip, and the boss is arranged around one side of the groove.
3. The optical module of claim 2 or 3, wherein the number of the bosses is multiple, and the multiple bosses are spaced apart on one side of the groove.
The optical module according to any one of claims 1 to 5, wherein the angle between the bent portion and the main body portion is 8°-20°.
A pluggable optical module, which is characterized in that it comprises:

A housing, the housing having a plurality of surfaces, the plurality of surfaces are arranged in a circumferential direction and surround to form a containing cavity;

The optical device is arranged in the accommodating cavity of the housing, and the optical device is used to realize the conversion between the optical signal and the electrical signal;

The main body part is arranged around multiple surfaces of the casing and is attached to the casing; wherein, the main body part is provided with an elastic part at one end in the axial direction; the elastic part Protruding relative to the housing; the housing has a boss, the boss is located on one side of the elastic structural member and away from the elastic part.
The optical module according to any one of claims 1 to 7, wherein the optical module further comprises a conductive rubber ring, and the conductive rubber ring is configured to be sleeved on the transceiver end of the optical device;

An optical port is provided in the housing, and the optical port is used for inserting the transceiver end of the optical device; the conductive rubber ring is sealed between the transceiver and the housing.
The optical module according to any one of claims 1 to 8, wherein the elastic part comprises a plurality of resisting pieces arranged at intervals, a gap is formed between two adjacent resisting pieces, and one end of the gap is It is an open end, and the other end is a closed end, and the closed end is an arc-shaped notch formed on the main body.
The optical module according to claim 9, wherein the resisting piece is in a convex arc shape and includes a connecting end, a resisting end, and a free end; the connecting end is connected to the main body, and the resisting piece is The holding end is located between the connecting end and the free end.
The optical module according to claim 9, wherein the housing comprises a top surface, a first side surface, a bottom surface and a second side surface which are sequentially connected; a positioning column is provided on the top surface, and a positioning column is provided on the bottom surface Has a buckle;

The main body includes a first part, a second part, and a third part that are connected in sequence; the first part is attached to the first side surface, the second part is attached to the top surface, and the third Partly fits the second side surface;

The main body part further includes two buckle parts, the two buckle parts are respectively connected with the first part and the third part, and both are far away from the second part;

The second part has a positioning hole, and the two buckle parts have a card slot; the positioning hole is used for the positioning post to pass through; the card slot is used for the buckle to buckle.
An optical communication device, comprising: a cage and the optical module according to any one of claims 1 to 11, the optical module being used to be inserted into the cage;

After the optical module is inserted into the cage, the elastic structural member is clamped between the housing and the cage to shield electromagnetic interference.