JP2011059183A - Fixing structure of optical module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure of optical modules for fixing optical modules having no holes in a lead frame to the housing of an optical connector through few operation processes, and stopping rotation with a sufficient control force against the optical modules. <P>SOLUTION: The structure includes: a plurality of cut-out parts 21 which are formed on a shield cover 5 so that a part of both sides of packages 1a, 3a housed in the shield cover 5 is exposed along the fitting/mounting direction on a housing 7; and a plurality of side positioning projections 31 mounted on the housing 7 so as to be inserted through the cut-out parts 21 and brought into contact with both sides of the packages 1a, 3a. Both sides of the optical modules 1, 3 are fixed and positioned by the side positioning projections 31. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an optical module fixing structure that fixes an optical module to a housing of an optical connector via a shield cover that surrounds the outer periphery of the package portion.

  An optical module is an electronic component for mutually converting an electric signal (E) and an optical signal (O), and is divided into a light emitting module and a light receiving module. A packaged product of these is called an optical transceiver (FOT = Fiber Optic Transceiver).

  In recent years, automobiles and others are equipped with sensors and electronic devices not only in instrument panels but also in door panels and roof panels. With this increase, the number of control signal paths to be routed in cars has increased. It is increasing rapidly.

  In order to prevent the wire harness from becoming enlarged or heavy due to the increase in the number of control signal paths, an optical fiber cable is used instead of an electric wire. The optical fiber of the signal path for connecting the optical fiber through the optical connector is being promoted.

  In order to facilitate the connection between the optical fiber cables, the connection between the optical fiber cable and the electric wire, or the connection between the optical fiber cable and the printed circuit board, the optical connector is provided in the resin housing. Or, an optical transceiver is incorporated.

  In general, an optical module has a configuration in which a lead serving as an input unit or an output unit for an electrical signal extends from a package unit having a cylindrical unit serving as an optical signal emitting unit or incident unit.

  Further, in terms of appearance, optical modules can be broadly classified into those in which the lead frame protruding from the package part is equipped with a fixing hole and those in which the fixing hole is not equipped.

  By the way, in the optical module, if the optical connector is not sufficiently fixed to the housing, and the positional deviation occurs due to looseness or the like, the optical axis is displaced and the original transmission performance cannot be exhibited. Therefore, the optical module must be firmly fixed to the housing.

  Up to now, in the case of an optical module of a type in which a lead frame is equipped with a fixing hole, as described in Patent Document 1 below, one fixing hole on the lead frame is engaged with a protrusion on the housing side, By adopting a three-point support structure equipped with rotation stoppers at two locations so that the optical module does not rotate around the fixing hole, it is possible to achieve firm fixation relatively easily.

  On the other hand, in the case of an optical module that is not equipped with a lead frame fixing hole, the three-point support as in Patent Document 1 cannot be performed.

  Thus, as a structure for fixing this type of optical module, a structure has been proposed in which the optical module is fixed to the housing of the optical connector via a shield cover that accommodates the package portion (for example, the following patent document). 2 and 3).

  The optical module fixing structure disclosed in Patent Document 2 is the third assembly step after the second assembly step of fitting the optical module into the receiving tube for mounting the module mounted on the housing of the optical connector. To implement.

  The optical module fitted and attached to the receiving cylinder in the second assembling step is in a state in which the lower end of the package portion abuts against a flat wall protruding from the housing and is prevented from rotating.

  In the third assembling step, a shield cover is placed on the optical module and the receiving cylinder from a direction orthogonal to the fitting mounting direction of the optical module, and the optical module is fixed (prevented from falling) to the receiving cylinder. It is a process to make a state.

  The shield cover includes an accommodating portion for accommodating the package portion of the optical module in a press-fitted state, a retaining portion that engages with an end portion of the receiving cylinder and prevents the optical module from being detached from the receiving cylinder, Is equipped. By completing the third assembly step, the optical module is fixed to the housing in a non-rotatable manner.

  In the optical module fixing structure disclosed in Patent Document 3, the optical module is positioned in a press-fitted state in advance in the housing portion of the shield cover, and then the shield cover is attached to the housing of the optical connector along the optical axis direction of the optical module. Fit to fit.

  At that time, the flat cutout surface formed on the outer periphery of the cylindrical portion of the case of the optical module is aligned with the flat cutout surface of the housing, thereby preventing the optical module from rotating. In addition, when the shield cover is fitted and attached to the housing, the projection on the housing side engages with a through-hole on the outer surface of the shield cover to prevent the optical module from being fixed to the housing in a non-rotatable manner. It becomes a state.

JP 2006-215276 A JP 2002-082258 A JP 2001-168380 A

  However, in the case of the optical module fixing structure described in Patent Document 2, the second assembly step for mounting the optical module to the housing of the optical connector, and the mounting of the shield cover to the housing and the optical module are performed. The third assembling step to be performed must be performed separately, and the number of assembling steps to the housing is large, resulting in a problem of poor workability.

  On the other hand, in the case of the optical module fixing structure described in Patent Document 3, since the shield cover housing the optical module is attached to the housing of the optical connector, the assembling process to the housing is only once and the workability is improved. You can plan.

  However, since the rotation prevention of the optical module is performed by a narrow notch surface on the outer periphery of the cylindrical portion close to the optical axis of the optical module, it is difficult to sufficiently secure a regulating force effective for the rotation prevention. Therefore, when a large external force is applied to the optical module for attachment to and detachment from the printed circuit board or the like, the optical module may move (rotate) to cause an optical axis shift or the like.

  Therefore, an object of the present invention is to solve the above-mentioned problems, and an optical module having no hole in the lead frame can be fixed to the optical connector housing with a small number of work steps. For example, even when a large external force is applied to the optical module when it is attached to or detached from the printed circuit board, the optical module can be stably fixed without causing a shift of the optical axis. An object of the present invention is to provide an optical module fixing structure that can be performed.

The above-described object of the present invention is achieved by the following configuration.
(1) Housing engaging means formed on a shield cover that surrounds the outer periphery of the optical module package portion, and a cover mechanism that is mounted on the housing of the optical connector and fixes the shield cover by engagement with the housing engaging means. Stopping means,
An optical module fixing structure for fixing the optical module to the housing via the shield cover,
A plurality of cutout portions as the housing engaging means formed in the shield cover so as to expose part of both side portions of the package portion accommodated in the shield cover along the fitting and mounting direction to the housing. When,
A plurality of side surface positioning protrusions as the cover locking means provided in the housing so as to be inserted through the cutout portion and abut on both side surfaces of the package portion when the shield cover is fitted to the housing; With
An optical module fixing structure characterized in that both sides of an optical module mounted on the housing through the shield cover are positioned and fixed by the side surface positioning projections.

(2) The housing includes, as the cover locking means, an upper end positioning rib that extends along the fitting and mounting direction of the shield cover and is slidably contacted with the upper end of the package part that is exposed at the upper part of the shield cover. A lower end positioning rib that extends along the fitting and mounting direction of the shield cover and is in sliding contact with the lower end of the package part exposed at the lower part of the shield cover,
The optical module fixing structure according to (1) above, wherein the upper and lower sides of the optical module mounted on the housing via the shield cover are positioned and fixed by an upper end positioning rib and a lower end positioning rib.

  (3) The light according to (2), wherein at least the lower end positioning ribs of the upper end positioning ribs and the lower end positioning ribs extend to the vicinity of the opening end of the module housing portion of the housing. Module fixing structure.

  According to the configuration of (1) above, when the shield cover is assembled in advance to the package portion of the optical module, and then this shield cover is fitted and attached to the housing of the optical connector, the side positioning protrusions mounted on the housing become the shield cover. The cutout portion is inserted into contact with both side surfaces of the package portion of the optical module housed in the shield cover. As a result, the optical module is held and prevented from rotating in a form in which both side surfaces are sandwiched by the side surface positioning protrusions. At this time, since the gripping position by the side positioning protrusion is farther from the optical module's optical axis than the outer peripheral position of the cylindrical portion of the optical module, the rotation was stopped by the narrow notch surface of the outer peripheral portion of the cylindrical portion. Compared with the conventional anti-rotation structure, it exerts a greater regulatory force as anti-rotation and anti-sway.

  Therefore, the optical module can be prevented from rotating with a sufficient regulating force. For example, even when a large external force is applied to the optical module when the optical module is attached to or detached from the printed circuit board, the optical axis shifts to the optical module. It is possible to perform stable fixing without incurring.

  In addition, since the optical module is attached to the housing together with the shield cover, the work process for attaching the optical module to the housing is only required once, and workability can be improved.

  Furthermore, according to the configuration of (1) above, even when the pair of optical modules of the light emitting module and the light receiving module are accommodated in one shield cover, between the pair of optical modules and on both outer sides of the pair of optical modules. It is possible to position both sides of each optical module simply by installing side surface positioning protrusions at a total of three locations. That is, the both side portions of each optical module can be positioned efficiently with a small number of side surface positioning protrusions.

  In addition, each side surface positioning projection can be set to a thickness or the like necessary for ensuring strength regardless of the size of the lead frame of the optical module.

  Therefore, both sides of the optical module can be firmly fixed while having a simple structure, and the optical axis of the optical module can be shifted due to lateral deflection or rotation when being attached to or detached from the printed circuit board. Excellent in preventing.

  According to the configuration of (2) above, both sides of the optical module mounted on the optical connector housing are positioned by the side surface positioning projections of the housing, and the upper and lower sides are positioned by the upper end positioning rib and the lower end positioning rib. And each of the upper and lower sides is fixed.

  Accordingly, it is possible to more firmly prevent rotation, for example, even if a large external force is applied to the optical module when it is attached to or detached from the printed circuit board or the like, the optical module is not displaced. It becomes possible to perform stable fixation.

  In addition, the side positioning protrusions that regulate the position of the optical module and the positioning ribs only need to extend along the fitting direction of the shield cover, and the extending direction is aligned. The protrusions and the positioning ribs are excellent in that the molding of the housing is facilitated without making it difficult to mold the housing.

According to the configuration of (3) above, when the shield cover is inserted into the module housing portion of the housing, the lower end positioning rib extending to the vicinity of the open end of the module housing portion is connected to the lower end of the package portion in the shield cover. By pushing the shield cover into the module housing portion in a state where the shield cover is applied, the lower end positioning rib can be used as a guide portion when the shield cover is inserted.
Therefore, the fitting and mounting work of the shield cover can be facilitated.

  According to the fixing structure of the optical module according to the present invention, when the shield cover containing the optical module is fitted and attached to the housing of the optical connector, the side positioning protrusion provided on the housing passes through the cutout portion of the shield cover, It abuts on both side surfaces of the package portion of the optical module accommodated in the shield cover. Then, the side surface positioning projections sandwiching both side surfaces of the optical module exhibit a greater restrictive force as a detent and a steady stop.

  Therefore, the optical module can be prevented from rotating with a sufficient regulating force. For example, even when a large external force is applied to the optical module when the optical module is attached to or detached from the printed circuit board, the optical axis shifts to the optical module. It is possible to perform stable fixing without incurring.

  Further, since the optical module is mounted on the housing together with the shield cover, the assembly process to the housing is only required once, and the workability can be improved.

It is a disassembled perspective view of one Embodiment of the fixing structure of the optical module which concerns on this invention. It is a disassembled perspective view of the shield cover and optical module shown in FIG. It is an expansion perspective view which shows fitting mounting | wearing operation of the housing and shield cover which were shown in FIG. It is a front view of the module accommodating part of the housing shown in FIG. 1, and a shield cover. It is a front view of the state where the optical module was fixed to the module accommodating part of the housing shown in FIG. 1 via the shield cover.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of an optical module fixing structure according to the invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of an embodiment of an optical module fixing structure according to the present invention, and FIG. 2 is an exploded perspective view of a shield cover and an optical module shown in FIG.

  The optical module fixing structure of this embodiment fixes a pair of optical modules 1 and 3 to a resin housing 7 of an optical connector via a shield cover 5.

  As shown in FIG. 2, in each of the pair of optical modules 1, 3, a plurality of leads 1 b, 3 b serving as an input portion or an output portion of an electric signal extend from a substantially rectangular parallelepiped package portion 1 a, 3 a. It is a form. The package portions 1a and 3a are provided with cylindrical portions 1c and 3c that serve as light signal emitting portions or incident portions.

  In addition, these optical modules 1 and 3 are optical modules in which there is no lead frame having holes that can be used for fixing or the like on both sides of the package portions 1a and 3a.

  One of the pair of optical modules 1 and 3 is a light emitting module in which a light emitting element is built in a package part, and the other is a light receiving module in which a light receiving element is built in a package part.

  The shield cover 5 has a rectangular tube shape surrounding the outer peripheries of the package parts 1a and 3a, and the top and bottom are open.

  The shield cover 5 accommodates a pair of package parts 1a and 3a arranged side by side so that it can be handled as an optical transceiver in which the light emitting module and the light receiving module are packaged together.

  The shield cover 5 connects the front wall 5a covering the front side of the optical modules 1 and 3, the rear wall 5b covering the rear side of the optical modules 1 and 3, and both side edges of the front wall 5a and the rear wall 5b. Both side walls 5c, 5c and an isolation wall 5e that divides the inside into two accommodating portions 5d, 5d are provided. Each of the accommodating portions 5d and 5d is a cylindrical space whose top and bottom are open. The package portions 1a and 3a accommodated in these accommodating portions 5d and 5d have their upper and lower surfaces exposed at the open ends of the accommodating portions 5d and 5d.

  The front wall 5a of the shield cover 5 is provided with a positioning hole 11 into which the cylindrical portions 1c and 3c of the optical modules 1 and 3 are fitted.

  An inner diameter of the positioning hole 11 is set so that the cylindrical portions 1c and 3c are fitted almost tightly.

  In addition, the internal dimensions of the accommodating portions 5d and 5d are set so that the outer circumferences of the cylindrical portions 1c and 3c are fitted in close contact.

  The shield cover 5 is formed in a rectangular tube shape having a predetermined size by press molding of a conductive metal thin plate or injection molding of a conductive synthetic resin material in order to provide shielding properties.

  In the optical module fixing structure of the present embodiment, the shield cover 5 accommodating the optical modules 1 and 3 is inserted into the module accommodating portion 15 opened at the end of the housing 7 as shown in FIG. It is fitted to the part 15.

  The fitting / attaching direction (insertion direction) of the shield cover 5 with respect to the module housing portion 15 is the arrow A direction shown in FIG. This arrow A direction is parallel to the optical axis direction of the optical modules 1 and 3.

  The housing 7 of the present embodiment is equipped with module housing portions 15 at opposite ends. As shown in FIG. 1, the shield covers 5 housing the optical modules 1 and 3 are fitted in the respective module housing portions 15. Fit together.

  As shown in FIG. 1, a pair of shield cases 17 are fitted and attached to both ends of the housing 7 fitted with the shield cover 5 so as to cover the outside of the accommodated shield cover 5.

  The pair of shield cases 17 are formed by press forming a thin metal plate having conductivity, cover the periphery of the housing 7 mounted on a printed circuit board or the like, and electromagnetically shield the periphery of the housing 7.

  In the case of this embodiment, as shown in FIGS. 2 and 4, the shield cover 5 exposes part of both side portions of the package portions 1 a and 3 a accommodated along the fitting and mounting direction to the housing 7. A cutout portion 21 is provided.

  The cutout portions 21 are both ends in the width direction of the lower end edge of the shield cover 5 and intermediate portions in the width direction. The intermediate portion in the width direction is a position where the isolation wall 5e is equipped. The inner edge of the pair of package portions 1a and 3a is exposed at the cutout portion 21 at the intermediate portion.

  Further, the position of the upper end edge 23 of the shield cover 5 is set so that the position of the upper end surface of the accommodated package portions 1a and 3a coincides with the position of the upper end edge 23 of the shield cover 5 or slightly protrudes upward. ing. Furthermore, the position of the lower end edge of the shield cover 5 is set so that the position of the lower end surface of the package portions 1a and 3a accommodated coincides with the position of the lower end edge 25 of the shield cover 5 or slightly protrudes downward. Yes.

  The height of the shield cover 5 is set so that upper end positioning ribs and lower end positioning ribs of the housing 7 to be described later are brought into sliding contact with upper end surfaces and lower end surfaces of the package portions 1a and 3a.

  Further, on both side walls 5c and 5c of the shield cover 5, when fitted to the module housing portion 15, it engages with an engaging portion 27 provided in the module housing portion 15 to prevent it from coming off. The elastic locking piece 29 is provided.

  As shown in FIG. 4, side positioning protrusions 31 are provided in the module housing portion 15 of the housing 7 at three locations corresponding to the three cutout portions 21 of the shield cover 5.

  As shown in FIG. 5, each side surface positioning projection 31 is inserted into the cutout portion 21 of the shield cover 5 when the shield cover 5 is fitted and mounted to the module housing portion 15. Abut.

  Therefore, the shield cover 5 and the optical modules 1 and 3 mounted on the housing 7 are held in a state where both sides thereof are sandwiched by the side surface positioning projections 31 and fixed so as not to move in the width direction.

  Further, four upper end positioning ribs 33 are provided on the ceiling portion of the module housing portion 15 of the housing 7.

  These four upper end positioning ribs 33 are provided apart from each other in the width direction of shield cover 5 (the direction of arrow B in FIG. 4). Each upper end positioning rib 33 is extended along the fitting and mounting direction of the shield cover 5.

  Two of the four upper end positioning ribs 33 are for positioning the upper end surface of one package portion 1a, and the remaining two are for positioning the upper end surface of the other package portion 3a.

  As shown in FIG. 5, the upper end positioning ribs 33 are in sliding contact with the upper end surfaces of the package parts 1 a and 3 a fitted and attached to the module housing part 15 to regulate the upper end positions of the package parts 1 a and 3 a.

  Further, four lower end positioning ribs 35 are provided on the bottom side of the module housing portion 15.

  These four lower end positioning ribs 35 are provided apart from each other in the width direction of the shield cover 5 (the direction of arrow B in FIG. 4). Each lower end positioning rib 35 is extended along the fitting and mounting direction of the shield cover 5.

  Two of the four lower end positioning ribs 35 are for positioning the lower end surface of one package portion 1a, and the remaining two are for positioning the lower end surface of the other package portion 3a.

  As shown in FIG. 5, the lower end positioning ribs 35 are in sliding contact with the lower end surfaces of the package parts 1a and 3a fitted and mounted in the module housing part 15 to regulate the lower end positions of the package parts 1a and 3a.

  Further, in the case of this embodiment, the lower end positioning rib 35 is extended so that the tip reaches the vicinity of the opening end of the module housing portion of the housing, as shown in FIG.

  As shown in FIG. 5, the upper end positioning rib 33 and the lower end positioning rib 35 are sandwiched from above and below the package parts 1a and 3a attached to the module housing part 15 and fixed.

  In the optical module fixing structure according to the embodiment described above, each of the cutout portions 21, the elastic locking pieces 29, and the upper and lower open portions formed in the shield cover 5 is configured so that the shield cover 5 is attached to the housing 7 housing 7. It is the housing engaging means for connecting.

  Further, the engaging portion 27, the side surface positioning protrusion 31, the upper end positioning rib 33, and the lower end positioning rib 35 provided on the housing 7 all fix the shield cover 5 by engaging with the housing engaging means on the shield cover 5. Cover locking means.

  In the optical module fixing structure according to the embodiment described above, the shield cover 5 is assembled in advance to the package portions 1a and 3a of the optical modules 1 and 3, and then the shield cover 5 is fitted to the housing 7 of the optical connector. To do.

  Then, the side positioning protrusions 31 mounted on the housing 7 pass through the cutout portion 21 of the shield cover 5 and contact the both side surfaces of the package portions 1 a and 3 a of the optical modules 1 and 3 accommodated in the shield cover 5. Touch.

  As a result, the optical modules 1 and 3 are held in the form sandwiched between the side surface positioning projections 31 on both side surfaces and are prevented from rotating. At this time, the gripping position by the side surface positioning projection 31 is further away from the outer peripheral position of the cylindrical portion of the optical module 1, 3 with respect to the optical axis of the optical module 1, 3. Compared with the conventional anti-rotation structure that has been prevented from rotating around the surface, it exerts greater regulatory power as an anti-rotation and anti-sway.

  Further, the package parts 1a and 3a of the optical modules 1 and 3 fitted and mounted in the module housing part 15 have upper and lower end surfaces sandwiched between the upper end positioning ribs 33 and the lower end positioning ribs 35, so Fixed to immovable.

  And since the installation position of the upper end positioning rib 33 and the lower end positioning rib 35 is further away from the outer peripheral position of the cylindrical portion of the optical modules 1, 3 than the optical axis of the optical modules 1, 3, the width of the outer periphery of the cylindrical portion Compared with the conventional anti-rotation structure in which the rotation is stopped by a narrow notch surface, the upper end positioning rib 33 and the lower end positioning rib 35 exhibit a large restriction force as an anti-rotation and an anti-sway.

  That is, the optical modules 1 and 3 mounted in the module housing part 15 are firmly fixed on both sides and the upper and lower sides of the package parts 1a and 3a, and are prevented from rotating with a larger restrictive force, and are prevented from shaking. Is done.

  Further, when the insertion amount of the shield cover 5 in the module housing portion 15 reaches a specified amount, the elastic locking piece 29 of the shield cover 5 is engaged with the engagement portion 27 on the housing 7 side, and the retaining is also achieved. .

  Accordingly, the optical modules 1 and 3 can be prevented from being rotated and prevented from swinging with a sufficient restriction force. For example, a large external force acts on the optical modules 1 and 3 when being attached to or detached from the printed circuit board. Even in this case, the optical modules 1 and 3 can be stably fixed without causing an optical axis shift.

  In addition, since the optical modules 1 and 3 are attached to the housing 7 together with the shield cover 5, the work process for attaching the optical modules 1 and 3 to the housing 7 is performed once, and workability can be improved. .

  Further, in the optical module fixing structure of the above embodiment, even when the pair of optical modules 1, 3 is accommodated in one shield cover 5, between the pair of optical modules 1, 3 and the pair of optical modules 1. , 3 can be positioned on both sides of each of the optical modules 1 and 3 simply by installing the side surface positioning projections 31 at three locations on both outer sides. That is, the both side portions of the optical modules 1 and 3 can be positioned efficiently by the small number of side surface positioning protrusions 31.

  In addition, each side surface positioning projection 31 can be set to a thickness or the like necessary for ensuring strength regardless of the size of the lead frame of the optical modules 1 and 3.

  Accordingly, both sides of the optical modules 1 and 3 can be firmly fixed while having a simple structure, and the optical modules 1 and 3 can be moved by sideways swinging or rotating when being attached to or detached from the printed circuit board or the like. It is excellent in preventing the optical axis from shifting.

  In addition, the side positioning protrusions 31 for regulating the positions of the optical modules 1 and 3 and the positioning ribs only have to be extended along the fitting and mounting direction of the shield cover 5, and the extending directions are aligned. The side positioning protrusions 31 and the positioning ribs 33 and 35 are excellent in facilitating the molding of the housing 7 without making it difficult to mold the housing 7 during molding.

  Furthermore, in the present embodiment, the lower end positioning rib 35 extends to the vicinity of the opening end of the module housing portion 15 of the housing 7.

Therefore, when the shield cover 5 is inserted into the module housing portion 15 of the housing 7, the shield cover 5 is placed in the module housing portion 15 with the lower end positioning rib 35 being in contact with the lower ends of the package portions 1 a and 3 a in the shield cover 5. By pushing in, the lower end positioning rib 35 can be utilized as a guide portion when the shield cover 5 is inserted.
Therefore, the fitting and mounting work of the shield cover 5 can be facilitated.

  Depending on the engagement structure with the engagement portion 27 on the housing 7 side, the elastic locking piece 29 provided on the shield cover 5 not only serves as a retaining member but also restricts movement in the vertical direction. It can also function as.

  Then, the elastic locking piece 29 can function as a position restricting means, and the shield cover 5 is firmly engaged with the cylindrical portions 1c, 3c so that the package portions 1a, 3a cannot be moved relative to each other in the vertical direction. In the case of holding, the upper end positioning rib 33 and the lower end positioning rib 35 shown in the above embodiment can be omitted.

  Furthermore, in the present embodiment, only the lower end positioning rib 35 of the upper end positioning rib 33 and the lower end positioning rib 35 provided in the module housing portion 15 is extended to the vicinity of the opening end of the module housing portion 15.

  However, the upper end positioning rib 33 may be extended to the vicinity of the open end of the module housing portion 15 similarly to the lower end positioning rib 35.

  In addition, you may make it provide the taper for making it easy to insert the shield cover 5 in the front-end | tip part of each positioning rib 33 and 35, and the front-end | tip part of the side surface positioning protrusion 31. FIG.

  The present invention is not limited to the above-described embodiments, and can be appropriately modified and improved. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 1 Optical module 1a Package part 1b Lead 1c Cylindrical part 3 Optical module 3a Package part 3b Lead 3c Cylindrical part 5 Shield cover 5a Front wall 5c Side wall 5d Accommodating part 5e Isolation wall 7 Housing 11 Positioning hole 15 Module accommodating part 17 Shield case 21 Cutout Part (housing engagement means)
23 upper edge 25 lower edge 27 engaging part (cover locking means)
29 Elastic locking piece (housing engagement means)
31 Side positioning protrusion 33 Upper end positioning rib (cover locking means)
35 Lower end positioning rib (cover locking means)

Claims (3)

Housing engaging means formed on a shield cover that surrounds the outer periphery of the package portion of the optical module; and cover locking means that is mounted on the housing of the optical connector and fixes the shield cover by engagement with the housing engaging means. Consisting of
An optical module fixing structure for fixing the optical module to the housing via the shield cover,
A plurality of cutout portions as the housing engaging means formed in the shield cover so as to expose part of both side portions of the package portion accommodated in the shield cover along the fitting and mounting direction to the housing. When,
A plurality of side surface positioning protrusions as the cover locking means provided in the housing so as to be inserted through the cutout portion and abut on both side surfaces of the package portion when the shield cover is fitted to the housing; With
An optical module fixing structure characterized in that both sides of an optical module mounted on the housing through the shield cover are positioned and fixed by the side surface positioning projections. The housing includes, as the cover locking means, an upper end positioning rib that extends along the fitting and mounting direction of the shield cover and is slidably contacted with the upper end of the package part that is exposed to the upper part of the shield cover, and the shield A lower end positioning rib that extends along the fitting and mounting direction of the cover and is slidably in contact with the lower end of the package part exposed at the lower part of the shield cover;
The optical module fixing structure according to claim 1, wherein the optical module mounted on the housing via the shield cover is positioned and fixed by an upper end positioning rib and a lower end positioning rib.   3. The optical module fixing structure according to claim 2, wherein at least the lower end positioning rib of the upper end positioning rib and the lower end positioning rib extends to the vicinity of the opening end of the module housing portion of the housing. .

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