JP4457600B2 - Optical module - Google Patents

Description

  The present invention relates to an optical module having a structure for inserting and extracting an optical module into and from a cage.

  In recent optical communication systems, when an optical fiber is connected to a computer, a method of inserting an optical module coupled with the optical fiber into a connector provided on a wiring board such as a motherboard may be used. This method is mainly used for a so-called stopcock insertion / removal method in which the computer and the optical fiber are coupled or separated while the computer and the optical communication system are in operation.

  In such a stopcock insertion / extraction system, it is desirable to provide a lock mechanism for preventing the optical module and the wiring board from being easily detached. For example, Patent Document 1 discloses an optical module having a latch structure for preventing a cage attached to a wiring board and an optical module from being easily detached. This optical module has release levers that are elastically supported on both side surfaces, and a projection provided on the release lever engages with an opening of the cage to be latched in the cage. In this optical module, the projection provided on the release lever is released from the opening of the cage by bending the release lever inward of the optical module, and the latch is released.

In the same technical field, a structure for coupling an optical fiber to an optical module is also disclosed. For example, Patent Document 2 discloses an optical module including a handle for holding an optical fiber inserted into an optical connector of the optical module so that the optical fiber is not easily detached. In this optical module, after the optical fiber is inserted into the optical connector, the handle is lowered and the optical fiber is held and the handle is latched.
US Pat. No. 5,734,558 US Pat. No. 5,901,263

  Among the above-mentioned patent documents, Patent Document 1 discloses a structure in which the optical module and the cage are latched so as not to be easily detached by vibration or the like, and the latch between the optical module and the cage is easily released by an operator. is doing. Patent Document 2 discloses a structure for preventing the coupling between an optical fiber and an optical module from being easily removed. However, when removing the latch between the optical module and the cage and pulling it out, the relatively hard fitting force between the connector of the optical module and the connector of the wiring board, the elastic force of the EMI countermeasure member, and the friction between the optical module and the cage It will be pulled out against the force. In the conventional structure as disclosed in Patent Document 1 and Patent Document 2, since there is little grip margin for pulling out the optical module from the cage, a sufficient force cannot be applied when pulling out the optical module from the cage. In some cases, there was difficulty in pulling out. Therefore, there is a demand for a structure that prevents the optical module from being easily detached from the cage in the inserted state, and that allows the optical module to be easily pulled out from the cage when being pulled out.

  The present invention has been made in view of the above problems, and prevents the optical module from being easily detached from the cage in the inserted state of the optical module, and the optical module is removed from the cage when the optical module is pulled out. It is an object of the present invention to provide an optical module that can be easily pulled out from a cable.

  In order to solve the above-described problems, an optical module according to the present invention includes a housing that accommodates at least one of a light receiving element and a light emitting element therein, and the cage and the housing are engaged when inserted into the cage. The engaging module is composed of a release tab and a latch lever, and the release tab is rotatably supported on a rotating shaft supported by the housing. The latch lever is a cage. And a slidable support with respect to the casing in conjunction with the rotational movement of the release tab.

  In the optical module described above, when the optical module is inserted into the cage, the optical module is latched in the cage by the first protrusion of the latch lever engaging the cage, so that the connector of the optical module can be easily detached from the wiring board. Absent. In addition, when the operator pushes the release tab during removal from the cage, the latch lever is interlocked with the rotation of the release tab, and the engagement state between the first projection of the latch lever and the cage is released. The Therefore, according to the above-described optical module, the operator can release the engagement state between the optical module and the cage by pressing the release tab, and thus the optical module can be easily pulled out from the cage.

  In the optical module, the housing has an engagement groove provided in an oblique direction with respect to the insertion direction of the optical module into the cage, and the latch lever has a first contact surface that contacts the release tab; A second protrusion that engages with the engagement groove of the housing, and the second tab is engaged by rotating the release tab while the release tab and the first contact surface of the latch lever are in contact with each other. It may be characterized in that the engagement between the first projection and the cage is released by sliding in the mating groove. As a result, the latch lever can slide stably in an oblique direction in conjunction with the rotation operation of the release tab.

  According to the optical module of the present invention, it is possible to prevent the optical module from being easily detached from the cage when the optical module is inserted, and to easily pull out the optical module from the cage when the optical module is pulled out.

  Hereinafter, embodiments of an optical module according to the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. In the following description, the insertion direction in which the optical module is inserted into the cage is the positive direction of the x axis, the width direction of the optical module that intersects the insertion direction is the y axis direction, and the x axis and the y axis The height direction of the intersecting optical modules is defined as the z-axis direction.

  FIG. 1 is a perspective view showing an optical module insertion / extraction structure according to the present embodiment. FIG. 2 is an exploded perspective view showing the internal structure of portion A of the optical module 3 shown in FIG. FIG. 3 is a perspective view of the top plate 17a of the casing 17 of the optical module 3 as viewed from the inside. FIG. 4 is a perspective view showing the cage 5 shown in FIG. 5A is a plan view of the cage 5 shown in FIG. 4, and FIG. 5B is a side view of the cage 5.

  Referring to FIG. 1, the optical module insertion / extraction structure of this embodiment includes an optical module 3 and a cage 5. The optical module 3 has a housing 17. The casing 17 has a rectangular parallelepiped shape extending in the y-axis direction and the z-axis direction, and includes a flat top plate 17a and a container 17b in which a cavity is formed. A connector 19 is attached to one surface of the housing 17 that intersects the x-axis direction. The connector 19 is provided to electrically connect a circuit inside the optical module 3 and a wiring on a wiring board such as the mother board 7.

  The optical module 3 includes an optical transmitter and an optical receiver (not shown) inside the housing 17. Among these, the optical transmission unit has a light emitting element such as a laser diode, for example, and converts an electrical transmission signal provided from the outside of the optical module 3 (for example, the mother board 7) via the connector 19 into an optical signal. Thus, the optical signal is transmitted to the outside of the optical module 3 through an optical fiber (not shown). The optical receiver has a light receiving element such as a photodiode, for example, receives an optical signal provided from outside the optical module 3 via an optical fiber (not shown), and electrically converts the optical signal to It is a means for converting into a received signal and providing the received signal to the outside of the optical module 3 (for example, the mother board 7) via the connector 19. Moreover, the housing | casing 17 has the optical fiber receiving parts 17g and 17d. A receiving-side optical fiber whose tip is covered with a ferrule is inserted into the optical fiber receiving portion 17g. In addition, a transmission-side optical fiber whose tip is covered with a ferrule is inserted into the optical fiber receiving portion 17d. These optical fibers are optically coupled to the optical receiver and the optical transmitter, respectively.

  Here, referring to FIG. 2, the optical module 3 further includes a release tab 11, a latch lever 13, and an actuator member 15. The release tab 11 and the latch lever 13 constitute an engaging structure for engaging the optical module 3 and the cage 5. Furthermore, in this embodiment, the engagement structure includes the actuator member 15. The release tab 11, the latch lever 13, and the actuator member 15 are attached to one of the side surfaces intersecting the y axis of the housing 17. The release tab 11 has a rectangular plate shape, and is provided with a rotating shaft 11a along one side thereof. The release tab 11 is attached to the housing 17 so that the longitudinal direction of the rotation shaft 11a faces the z-axis direction. The rotation shaft 11 a of the release tab 11 is inserted into a hole of the housing 17 (not shown) so as to be rotatable, and is supported by the housing 17. The release tab 11 has a back surface 11b and a front surface 11c. The release tab 11 is attached to the housing 17 so that the back surface 11b intersects the oblique directions with respect to the x-axis direction and the y-axis direction, respectively. Specifically, the back surface 11b of the release tab 11 faces the direction obtained by combining the positive direction in the x-axis direction and the positive direction in the y-axis direction. Further, the surface 11c of the release tab 11 faces the direction in which the negative direction in the x-axis direction and the negative direction in the y-axis direction are combined. The casing 17 is provided with a stopper 17e for restricting the rotation operation of the release tab 11 in the negative direction in the x-axis direction.

  The latch lever 13 is a member that is slidably supported in an oblique direction with respect to the x-axis direction and the y-axis direction in conjunction with the release tab 11. In the present embodiment, the latch lever 13 has a rod-like main body portion 13a extending in the x-axis direction, and has an inclined surface 13b at the end of the main body portion 13a. The inclined surface 13 b is a first contact surface that contacts the back surface 11 b of the release tab 11. The slope 13b is formed so as to intersect the oblique direction with respect to each of the x-axis direction and the y-axis direction. Specifically, the inclined surface 13b of the latch lever 13 faces the direction in which the negative direction in the x-axis direction and the negative direction in the y-axis direction are combined. Further, the latch lever 13 has a protrusion 13e substantially at the center of the main body portion 13a. The protrusion 13e is a first protrusion for engaging with an opening 5f of the cage 5 described later. The protrusion 13e protrudes from the main body 13a in the negative direction in the y-axis direction. In other words, the protrusion 13 e protrudes from the main body portion 13 a toward the outside of the housing 17.

  The latch lever 13 has a protrusion 13f. The protrusion 13 f is a third protrusion that protrudes from the main body portion 13 a toward the actuator member 15. In the present embodiment, the protrusion 13f is formed substantially at the center of the main body portion 13a and protrudes from the main body portion 13a in the negative direction in the z-axis direction. The latch lever 13 has protrusions 13c and 13d. These protrusions are second protrusions that engage with engaging grooves 17j and 17k (described later) provided in the housing 17. In the present embodiment, the protrusion 13d is formed substantially at the center of the main body portion 13a and protrudes in the positive direction in the z-axis direction. Further, the protrusion 13c protrudes in a positive direction in the z-axis direction from a position protruding in the positive direction in the y-axis direction from the main body portion 13a.

  The actuator member 15 is supported by the housing 17 so as to be slidable in the z-axis direction relative to the housing 17 in conjunction with the latch lever 13. That is, the actuator member 15 has a rod-like main body portion 15a extending in the x-axis direction, and has a groove 15d that engages with a protrusion 17f (described later) of the housing 17 in the main body portion 15a. The groove 15d is provided on the surface of the main body portion 15a that contacts the housing 17, and extends in the x-axis direction. The actuator member 15 has a groove 15f. The groove 15f is an engaging portion that engages with the protrusion 13f of the latch lever 13, and extends in the y-axis direction. In the present embodiment, the groove 15f is formed at a position corresponding to the protrusion 13f of the latch lever 13 at the approximate center of the surface 15e opposite to the surface of the main body portion 15a that contacts the housing 17. The actuator member 15 supports the latch lever 13 on the surface 15e.

  The actuator member 15 has a tip 15g that is thinner than the main body 15a, and the tip 15g extends from the end face 15c of the main body 15a in the positive direction in the x-axis direction. An end face 15b is provided at the tip of the tip portion 15g. The end surface 15b serves as a second contact surface that contacts the cage 5 when the actuator member 15 operates. Here, a groove 17i extending in the x-axis direction is formed on the side surface 17c of the housing 17, and the tip portion 15g of the actuator member 15 is formed in the groove 17i so as to slide inside the groove 17i in the x-axis direction. It is inserted from the end. Further, a surface 17h intersecting the x-axis direction is provided at the end of the groove 17i, and the end surface 15c of the main body portion 15a of the actuator member 15 is brought into contact with the surface 17h, so that the positive surface of the actuator member 15 in the x-axis direction is provided. It is a mechanism that restricts the sliding movement to the direction of.

  Referring to FIG. 3, grooves 17 j and 17 k are provided on the inner surface of the top plate 17 a of the housing 17. The engagement grooves 17j and 17k are engagement grooves that extend in directions oblique to the x-axis direction and the y-axis direction. Specifically, the grooves 17j and 17k extend in a direction in which a positive direction in the x-axis direction and a positive direction in the y-axis direction are combined. The protrusions 13d and 13c of the latch lever 13 are engaged with the grooves 17j and 17k, respectively. Here, the groove 17j extends to the side surface of the top plate 17a, whereas the groove 17k does not extend to the side surface of the top plate 17a. This is because the protrusion 13c of the latch lever 13 is hooked in the groove 17k in order to prevent the latch lever 13 from falling off the housing 17.

  The optical module 3 further includes a release tab 12, a latch lever 14, and an actuator member 16. The release tab 12, the latch lever 14, and the actuator member 16 are symmetrical with respect to the xz plane with respect to the release tab 11, the latch lever 13, and the actuator member 15 described above, and the other side surface of the housing 17. Is attached. The stoppers, protrusions, and grooves corresponding to the stopper 17e, the protrusion 17f, and the groove 17i of the housing 17 are also provided in a symmetrical shape with respect to the xz plane. The top plate 17a is provided with grooves that are symmetrical with respect to the grooves 17j and 17k with respect to the xz plane.

  Referring again to FIG. 1, the cage 5 is fixed on the mother board 7. The cage 5 is for fixing the optical module 3 on the mother board 7. The optical module 3 is inserted in the positive direction in the x-axis direction with respect to the cage 5 and extracted in the negative direction in the x-axis direction. A connector 8 is fixed on the mother board 7 in the positive x-axis direction with respect to the cage 5. The connector 8 is a connector that fits with the connector 19 of the optical module 3 and is electrically connected to the wiring on the mother board 7.

  Here, referring to FIG. 4 and FIGS. 5A and 5B, the cage 5 has a front portion 5b and a rear portion 5c. The front portion 5b is formed so that its xz cross section is rectangular, and has an opening 5e penetrating in the x-axis direction. The cross-sectional shape and size of the opening 5 e are formed in accordance with the cross-sectional shape and size of the housing 17 of the optical module 3. Moreover, the opening 5f is formed in two side surfaces which cross | intersect the y-axis direction of the front part 5b. The opening 5f is an engaging portion for engaging with the protrusion 13e (see FIG. 2) of the latch lever 13 of the optical module 3. In the present embodiment, the opening 5 f is formed in a rectangular shape at a position corresponding to the protrusion 13 e of the latch lever 13.

  Further, the rear portion 5c of the cage 5 is formed so as to cover the connector 8 on the mother board 7 as shown in FIG. The front portion 5b and the rear portion 5c are connected to each other by plate-like side portions 5i and 5j that intersect the y-axis direction and extend in the x-axis direction. A protrusion 5g that protrudes in the positive direction in the y-axis direction and extends in the x-axis direction is provided inside the side portion 5i. Similarly, a protrusion 5h that protrudes in the negative direction in the y-axis direction and extends in the x-axis direction is provided inside the side portion 5j. When the optical module 3 is inserted into the cage 5, the protrusion 5 g is engaged with a groove 17 i (see FIG. 2) provided on the side surface 17 c of the housing 17 of the optical module 3, so that the optical module 3 is moved in the x-axis direction. Lead to. The protrusion 5h is also engaged with a groove provided on the side surface opposite to the side surface 17c of the optical module 3, and guides the optical module 3 in the x-axis direction. Further, the end portion 5k of the protrusion 5g serves as a contact portion that can contact the actuator member 15 of the optical module 3 in the x-axis direction. Specifically, the end 5k of the protrusion 5g contacts the end surface 15b of the tip 15g of the actuator member 15 that slides in the groove 17i of the housing 17 in a state where the optical module 3 is inserted into the cage 5. Accordingly, a force in the x-axis direction is exerted on the protrusion 5g of the cage 5 by the sliding movement of the actuator member 15 in the positive direction of the x-axis. The same applies to the end portion 5m of the projection 5h, and abuts against the actuator member 16 attached to the side surface opposite to the side surface 17c, and a force in the x-axis direction is exerted from the actuator member 16.

  Next, the operation of the optical module insertion / extraction structure according to the present embodiment will be described. FIGS. 6 (a) and 6 (b), FIGS. 7 (a) and 7 (b), and FIGS. 8 (a) and 8 (b) illustrate the operation of the optical module insertion / extraction structure. 2 is a plan view and a side view of the optical module 3. FIG. In the following description, only the action on one of the two side faces 17c of the optical module 3 (that is, the action by the release tab 11, the latch lever 13, and the actuator member 15) will be described. Since the action on the other side surface (action by the release tab 12, the latch lever 14, and the actuator member 16) is symmetric with respect to the action described below and the xz plane, detailed description thereof is omitted.

  6A and 6B show a state in which the release tab 11 is not pushed in the optical module 3, that is, a state in which it is inserted into the cage 5 and latched. In this state, the latch lever 13 is positioned closer to the cage 5 and engages with the opening 5f (see FIG. 4) of the cage 5. The connector 19 is fitted with the connector 8 (see FIG. 1) on the motherboard.

  Subsequently, as shown in FIGS. 7A and 7B, when the operator pushes the release tab 11 toward the inside of the optical module 3 (arrow B in the figure), the pressing force from the release tab 11 and The displacement is transmitted to the slope 13b (see FIG. 2) of the latch lever 13 through the back surface 11b of the release tab 11. Then, the latch lever 13 is interlocked with the rotation operation of the release tab 11, and the projections 13 d and 13 c of the latch lever 13 are guided into the grooves 17 j and 17 k provided in the top plate 17 a of the housing 17, respectively. Slides in the direction in which the grooves 17j and 17k extend (arrow C). At this time, the protrusion 13f (see FIG. 2) of the latch lever 13 engaged with the groove 15f of the actuator member 15 transmits the pressing force and displacement to the actuator member 15. Then, the groove 15d of the actuator member 15 is guided to the protrusion 17f of the housing 17, whereby the actuator member 15 slides relative to the housing 17 in the positive direction in the x-axis direction (arrow D). Then, the end surface 15b of the tip 15g of the actuator member 15 pushes the end 5k of the projection 5g of the cage 5 in the x-axis direction. Therefore, the force by which the operator pushes the release tab 11 is converted into a force that pushes the cage 5 of the actuator member 15, and the optical module 3 is relatively negative with respect to the cage 5 in the negative x-axis direction (that is, in the insertion direction). Move in the reverse direction.

  Subsequently, as shown in FIGS. 8A and 8B, when the operator continues to push the release tab 11 toward the inside of the optical module 3, the latch lever 13 slides and the protrusion 13e becomes the optical module. 3 is sufficiently pulled inward (arrow E). Then, the engagement relationship between the protrusion 13e of the latch lever 13 and the opening 5f (see FIG. 4) of the cage 5 is released. Further, the end face 15b of the tip 15g of the actuator member 15 continues to push the projection 5g of the cage 5, so that the optical module 3 moves relative to the cage 5 by a predetermined distance in the negative direction in the x-axis direction. (Arrow F). Thus, a part of the optical module 3 protrudes from the front part 5b of the cage 5 in the negative direction in the x-axis direction. The operator can grasp a part of the protruding optical module 3 and pull out the optical module 3 from the cage 5.

  The optical module 3 according to the present embodiment described above has the following effects. That is, according to the present embodiment, when the optical module 3 is inserted, the projection 13e of the latch lever 13 is engaged with the opening 5f of the cage 5 so that the optical module 3 is latched by the cage 5. 3 connector 19 is not easily detached from connector 8 of motherboard 7. Further, according to the present embodiment, when the optical module 3 is pulled out, the operator can release the engaged state between the optical module 3 and the cage 5 by pushing the release tab 11. Can be easily pulled out of the cage 5. The above effects are the same for the release tab 12, the latch lever 14, and the actuator member 16.

  In the state where the optical module 3 is inserted into the cage 5, if the gripping distance of the optical module 3 is relatively large, the optical module 3 does not include the actuator members 15 and 16, and the cage 5 has the ends of the protrusions 5 g and 5 h. The structure which is not provided with the parts 5k and 5m may be sufficient. In this case, since the operator pushes the release tab 11 to release the engagement state between the optical module 3 and the cage 5, the optical module can be easily pulled out from the cage.

  Further, in the optical module 3 according to the present embodiment, the housing 17 has grooves 17j and 17k provided obliquely with respect to the insertion direction of the optical module 3 into the cage 5, and the latch lever 13 is provided with the release tab 11. And the projection 13d that engages with the grooves 17j and 17k of the housing 17, and the release tab 11 rotates while the latch lever 13 and the slope 13b are in contact with each other. 17 j and 17 k are slid to disengage the projection 13 e from the opening 5 f of the cage 5. As a result, the latch lever 13 can slide stably in an oblique direction in conjunction with the rotation operation of the release tab 11.

  Further, the optical module 3 according to the present embodiment has an actuator 15 whose engagement structure further interlocks with the latch lever 13, the latch lever 13 has a protrusion 13f that engages with the actuator 15, and the actuator 15 has a protrusion. 13f has a groove 15f that engages with the cage 13 and an end surface 15b that contacts the cage 5. The release tab 11 rotates while the release tab 11 and the inclined surface 13b of the latch lever 13 are in contact with each other. The housing 17 is slid in the direction opposite to the insertion direction while the end surface 15b is in contact with the cage 5. According to this optical module 3, since the operator can release the engagement state between the optical module 3 and the cage 5 by pushing the release tab 11, a part of the optical module 3 can be protruded from the cage 5. The operator can easily grasp the optical module 3, and the optical module 3 can be pulled out from the cage 5 more easily.

  In the present embodiment, in the optical module 3, the actuator member, the latch levers 13 and 14, and the release tabs 11 and 12 are provided symmetrically on the two side surfaces of the housing 17. In the present embodiment, in the cage 5, the openings 5 f and the ends 5 k and 5 m of the protrusions 5 g and 5 h are provided symmetrically corresponding to the latch levers 13 and 14 and the actuator members 15 and 16 of the optical module 3, respectively. Yes. Accordingly, the operator can pick up the release tabs 11 and 12 from both sides of the optical module 3 with fingers, so that the operator can easily push in the release tabs 11 and 12. Further, since the force from the actuator member to the cage 5 is applied in a balanced manner on both side surfaces of the housing 17 of the optical module 3, the optical module 3 can be pulled out from the cage 5 more easily.

  In the present embodiment, the release tab 11 has a back surface 11b, and the latch lever 13 has a slope 13b. As a result, the rotation operation of the release tab 11 is transmitted to the latch lever 13 via the back surface 11b and the inclined surface 13b, so that the latch lever 13 slides in a direction that intersects the inclined surface 13b in conjunction with the rotation operation of the release tab 11. be able to.

  In the present embodiment, the latch lever 13 has a protrusion 13f, and the actuator member 15 has a groove 15f. As a result, the pressing force and displacement from the latch lever 13 are transmitted to the actuator member 15 via the protrusion 13f and the groove 15f, so that the actuator member 15 can be suitably interlocked with the latch lever 13.

  Further, in the present embodiment, the housing 17 has a protrusion 17f, and the actuator member 15 has a groove 15d. As a result, when the actuator member 15 slides, the actuator member 15 is guided in the direction of the groove 15d and the protrusion 17f, so that the actuator member 15 can suitably slide in the x-axis direction with respect to the housing 17. .

  In the present embodiment, the top plate 17a of the housing 17 has grooves 17j and 17k, and the latch lever 13 has protrusions 13d and 13c. Thereby, when the latch lever 13 slides, the latch lever 13 is guided in the direction of the grooves 17j and 17k, so that the latch lever 13 can slide stably.

FIG. 1 is a perspective view showing an optical module insertion / extraction structure according to the present embodiment. FIG. 2 is an exploded perspective view showing the internal structure of portion A of the optical module shown in FIG. FIG. 3 is a perspective view of the top plate of the casing of the optical module as viewed from the inside. FIG. 4 is a perspective view showing the cage shown in FIG. FIG. 5A is a plan view of the cage shown in FIG. FIG. 5B is a side view of the cage. FIG. 6A is a plan view of the optical module for explaining the operation of the optical module insertion / extraction structure. FIG. 6B is a side view of the optical module for explaining the operation of the optical module insertion / extraction structure. Fig.7 (a) is a top view of the optical module for demonstrating the effect | action of the insertion / extraction structure of an optical module. FIG.7 (b) is a side view of the optical module for demonstrating the effect | action of the insertion / extraction structure of an optical module. FIG. 8A is a plan view of the optical module for explaining the operation of the optical module insertion / extraction structure. FIG. 8B is a side view of the optical module for explaining the operation of the optical module insertion / extraction structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 ... Optical module, 5 ... Cage, 5e, 5f ... Opening, 5g, 5h ... Projection, 5b ... Front part, 5c ... Rear part, 5i, 5j ... Side part, 5k, 5m ... End part, 7 ... Mother board, 8 ... Connector, 11, 12 ... Release tab, 11a ... Rotating shaft, 11b ... Back surface, 11c ... Front surface, 13, 14 ... Latch lever, 13a ... Body part, 13b ... Slope, 13c-13f ... Projection, 15, 16 ... Actuator member , 15a ... body part, 15b, 15c ... end face, 15d, 15f ... groove, 15g ... tip part, 17 ... housing, 17a ... top plate, 17b ... container, 17c ... side face, 17d, 17g ... optical fiber receiving part, 17e ... stopper, 17f ... projection, 17h ... surface, 17i-17k ... groove, 19 ... connector.

Claims (2)

An optical module having a structure that accommodates at least one of a light receiving element and a light emitting element therein, and a structure in which the cage and the casing are engaged when inserted into the cage,
The engagement structure is composed of a release tab and a latch lever,
The release tab is rotatably supported by a rotation shaft supported by the housing,
The latch module includes a first protrusion that engages with the cage, and is supported so as to be slidable with respect to the housing in conjunction with the rotational movement of the release tab. The housing has an engaging groove provided in an oblique direction with respect to the insertion direction of the optical module into the cage,
The latch lever has a first abutting surface that abuts on the release tab, and a second protrusion that engages with the engaging groove of the housing,
When the release tab rotates while the release tab and the first contact surface of the latch lever are in contact with each other, the second projection slides in the engagement groove, The optical module according to claim 1, wherein the optical module is disengaged from the cage.

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