JP4098682B2 - Optical receptacle fixing member, optical receptacle mounting structure, and electronic device - Google Patents

Description

  The present invention relates to an optical receptacle fixing member, and more particularly to a member for attaching an optical receptacle to a substrate.

  Here, the “optical receptacle” includes at least one of a light emitting element and a light receiving element (hereinafter referred to as “optical element”) in a housing having a plug insertion hole, and an end of an optical fiber cable inserted into the plug insertion hole. A component that performs optical coupling between a portion (plug) and the optical element.

  The present invention also relates to an optical receptacle mounting structure in which an optical receptacle is mounted on a substrate using the optical receptacle fixing member.

  The present invention also relates to an electronic apparatus provided with such an optical receptacle mounting structure.

  Here, “electronic device” means a digital TV (television) receiver, a digital BS (broadcast satellite) tuner, a CS (communication satellite) tuner, a DVD (digital versatile disc) player, an STB (set top box). ), Super Audio CD (Compact Disc) Player, AV (Audio / Video) Amplifier, Audio, Personal Computer, Personal Computer Peripheral Equipment, Mobile Phone, PDA (Personal Digital Assistance), etc., and Pachinko Machine Widely includes amusement devices such as game devices and other devices utilizing optical transmission.

  In general, this type of optical receptacle has lead pins (connection terminals) that protrude from the optical element in the housing to the outside of the housing. This lead pin is inserted into a through-hole previously formed in the printed circuit board and soldered. In this soldering stage, the optical receptacle needs to be fixed so as not to be displaced with respect to the printed circuit board.

  Conventionally, a method is known in which a receptacle (connector) is screwed to a printed circuit board via a mounting jig and temporarily fixed, and then the lead pins are soldered to the printed circuit board (for example, Patent Document 1 (Japanese Patent Laid-Open No. Hei 11). -167966)). However, this method has a problem that it takes time and labor for screwing.

Also known is a method of fixing a mounting pin erected on a printed circuit board by press-fitting it into a hole formed in a mounting portion of a receptacle (connector) and then heating the mounting pin to weld the mounting portion and the mounting pin. (For example, see Patent Document 2 (Japanese Patent Laid-Open No. 2000-56186)). Thereafter, the lead pin is soldered to the printed board. However, this method has a problem in that it takes time to perform the welding operation.
JP-A-11-167966 JP 2000-56186 A

  Accordingly, an object of the present invention is to provide an optical receptacle fixing member capable of easily and reliably fixing an optical receptacle to a substrate.

  Moreover, since the thicknesses of the substrates to be used are not necessarily the same, the present invention provides an optical receptacle fixing member capable of easily and reliably fixing the optical receptacles even to substrates having different thicknesses.

  Another object of the present invention is to provide an optical receptacle attachment structure in which an optical receptacle is attached to a substrate using such an optical receptacle fixing member.

  Moreover, this invention is providing the electronic device provided with such an optical receptacle attachment structure.

In order to solve the above problems, an optical receptacle fixing member of the present invention is an optical receptacle fixing member for attaching an optical receptacle to a substrate,
A holding portion for holding the optical receptacle;
A leg that extends substantially in the first direction from the holding portion and that shows elasticity inserted through a through hole formed in the substrate;
The feet in contact with the inner edge of the through hole on the back side of the substrate, have a portion skewed with respect to the first direction,
The tip portion of the plate material forming the foot is bent in a dogleg shape with respect to the first direction and the second direction perpendicular to the surface of the other portion of the plate material,
A slit is formed in the tip portion of the plate material forming the foot, and the tip portion extends through the slit in a third direction perpendicular to the first and second directions,
Of the portion of the plate that is bent in the U-shape with respect to the second direction, the slope portion that faces the holding portion, and the outer edge of the plate that extends through the slit in the third direction, Each of the first and second directions is configured to be inclined with respect to the first direction .

Here, the term “substantially extending in the first direction ” means that the above-mentioned “oblique portion” exists but extends in one direction as a whole.

  The “back side of the substrate” refers to the opposite side of the both sides (both sides) of the substrate to the side where the holding unit is disposed.

In the optical receptacle fixing member according to the present invention, with the holding portion holding the optical receptacle, the legs extending substantially in the first direction from the holding portion are inserted through the through holes formed in the substrate. Then, the portion of the foot that is inclined with respect to the first direction contacts the inner edge of the through hole on the back side of the substrate. As a result, the optical receptacle can be easily and reliably fixed to the substrate with one touch without performing a screwing operation or a welding operation. As a result, when the lead pins (connection terminals) protruding from the housing of the optical receptacle are soldered to the substrate, the optical receptacle is not displaced with respect to the substrate. Therefore, the lead pins protruding from the housing of the optical receptacle are easily soldered to the substrate. Therefore, the assembly work of the electronic device using the substrate is facilitated.

Further, in this optical receptacle fixing member, the above-mentioned foot exhibits elasticity. Therefore, the leg can be temporarily retracted in the direction away from the inner edge of the through hole due to its elasticity while the leg is inserted into the through hole formed in the substrate. After the foot is inserted into the through hole formed in the substrate, the foot returns due to its elasticity and comes into contact with the inner edge of the through hole on the back side of the substrate. Therefore, the work of attaching the optical receptacle to the substrate is further facilitated.

Further, in this optical receptacle fixing member, the front end portion of the plate member forming the foot has a dogleg shape with respect to the first direction and the second direction perpendicular to the surface of the other portion of the plate member. Since the leg is bent, while the foot is inserted into the through hole formed in the substrate, the U-shaped portion comes into contact with the inner edge of the through hole, and the foot is elastically connected to the inner edge of the through hole. Can be easily retracted away from the head.

Further, as described above, the portion of the foot that is inclined with respect to the first direction is in contact with the inner edge of the through hole on the back side of the substrate. This “slanted part” actually has a finite length instead of one point. Therefore, even if the thickness of the substrate is different, the position of the inner edge of the through hole is set in advance according to the thickness of the substrate so that the foot is inserted into the through hole. At this time, a portion of the foot that is inclined with respect to the first direction (a different point) may be in contact with the inner edge of the through hole on the back side of the substrate. Therefore, even if the thicknesses of the substrates are different, the optical receptacle is easily and reliably fixed to the substrate .

In addition, in this optical receptacle fixing member, the sloped portion facing the holding portion of the portion of the plate material bent in the second direction with respect to the second direction, and the slit in the third direction. The outer edges of the plate material spread through each of them constitute a portion that is inclined with respect to the first direction. Therefore, it is possible to fix in the direction bent in the shape of a dogleg (second direction) and fix in the direction in which the bent line of the dogleg extends (third direction). Further, the optical receptacle can be firmly fixed to any of the substrates having different thicknesses by the fixing in the second direction and the fixing in the third direction.

  This means that for a plurality of products, the optical receptacle can be attached to the substrate using the same optical receptacle fixing member. Therefore, the assembly work of various electronic devices can be simplified as a whole, leading to cost reduction.

  It is desirable that a plurality of the legs are provided. In that case, since the optical receptacle can be locked to the substrate at a plurality of locations (legs), the optical receptacle can be more firmly fixed to the substrate.

  The member for fixing an optical receptacle according to one embodiment is characterized in that the holding portion and the foot are integrally formed of a metal plate.

  The optical receptacle fixing member of this embodiment is manufactured at low cost because the holding portion and the foot are integrally formed of a metal plate.

In the optical receptacle fixing member according to an embodiment, the tip portion of the plate member forming the foot is bent in a U-shape in the opposite direction with respect to the second direction via the slit.

In the optical receptacle fixing member of this embodiment, the portions bent in a U-shape in opposite directions with respect to the second direction via the slit constitute the “oblique portions”, respectively. The inner side of the through hole can be in contact with the back side of the substrate. In other words, the portions bent in the shape of a dogleg in the opposite direction can contact the two inner edges of the through hole facing each other. Therefore, the optical receptacle is firmly fixed to the substrate.

  In the optical receptacle fixing member according to an embodiment, the holding portion includes a rectangular protrusion for holding the optical receptacle.

  In the optical receptacle fixing member according to this embodiment, since the holding portion includes a square protrusion for holding the optical receptacle, the optical receptacle is firmly held by the optical receptacle. Therefore, the optical receptacle is more firmly fixed to the substrate.

The optical receptacle mounting structure of the present invention is an optical receptacle mounting structure in which an optical receptacle is mounted on a substrate using the optical receptacle fixing member.
The optical receptacle is held by the holding portion of the optical receptacle fixing member,
The leg of the optical receptacle fixing member is inserted into a through hole formed in the substrate,
The inclined part of the foot is in contact with the inner edge of the through hole on the back side of the substrate.

In the optical receptacle mounting structure of the present invention, the optical receptacle fixing member is inserted into the through hole formed in the substrate while the optical receptacle is held by the holding portion of the optical receptacle fixing member. One-touch operation without screwing or welding. That is, with one touch, the portion of the foot that is inclined with respect to the first direction contacts the inner edge of the through hole on the back side of the substrate, and the optical receptacle is easily and reliably fixed to the substrate. It becomes a state. In this state, if the lead pins (connection terminals) protruding from the housing of the optical receptacle are soldered to the substrate, the optical receptacle will not be displaced with respect to the substrate. Therefore, the lead pins protruding from the housing of the optical receptacle are easily soldered to the substrate. Therefore, the assembly work of the electronic device using the substrate is facilitated.

  According to one embodiment of the optical receptacle mounting structure, the inner edge of the through hole is formed in accordance with the thickness of the substrate so that the inclined portion of the foot is in contact with the inner edge of the through hole on the back side of the substrate. The position is set variably.

As described above, the portion of the foot that is inclined with respect to the first direction is in contact with the inner edge of the through hole on the back side of the substrate. This “slanted part” actually has a finite length instead of one point. Therefore, even when the thickness of the substrate is different, the position of the inner edge of the through hole is variably set in advance according to the thickness of the substrate as in the optical receptacle mounting structure of this embodiment. Thus, when the foot is inserted into the through hole, a portion of the foot that is inclined with respect to the first direction (a different point) is the inner edge of the through hole on the back side of the substrate. Can be touched. Therefore, even if the thicknesses of the substrates are different, the optical receptacle is easily and reliably fixed to the substrate. This means that for a plurality of products, the optical receptacle can be attached to the substrate using the same optical receptacle fixing member. Therefore, the assembly work of various electronic devices can be simplified as a whole, leading to cost reduction.

  In order to variably set the position of the inner edge of the through hole, the position or size of the through hole may be variably set.

  According to another aspect of the present invention, there is provided an electronic apparatus including the optical receptacle mounting structure.

  The electronic device according to the present invention can achieve the operational effects of the optical receptacle mounting structure. That is, at the time of assembly, the lead pin protruding from the optical receptacle housing is easily soldered to the substrate. Therefore, this electronic device can be easily assembled.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

FIG. 1A shows an optical receptacle fixing member 100 of a reference example as the basis of the present invention as viewed from the front, that is, from the side where an optical plug (end portion of an optical fiber) is inserted into an optical receptacle described later. ing. 1B shows the fixing member 100 viewed from the left side, FIG. 1C shows the fixing member 100 viewed from the right side, and FIG. 1D shows the fixing member 100 viewed from the upper side. As seen, FIG. 1E shows the fixing member 100 viewed from below.

  The fixing member 100 includes a band-shaped holding portion 101 that is bent in a U shape in order to hold the optical receptacle. The optical receptacle enters and is held in the middle space 190 of the holding portion 101 that is bent in a U shape.

  The holding portion 101 of the fixing member 100 includes two to four square-shaped protrusions 102, 103, 104, 105 that extend forward, and these four protrusions 102, 103, 104, 105 serve as optical receptacles. Is to hold firmly. Since portions 102a and 103a of the protrusions 102 and 103 provided at the lower end of the holding portion 101 are bent inward in parallel to the protrusion direction, the optical receptacle can be held more firmly. Further, holes 102b and 103b are formed in the protrusions 102 and 103, respectively. The holes 102b and 103b serve to prevent the solder from creeping up when soldering lead pins (connection terminals) protruding from the housing of the optical receptacle to a printed circuit board (hereinafter simply referred to as “substrate”).

The fixing member 100 includes a through-hole (for example, a through-hole 113 of the substrate 111 shown in FIG. 2A) provided in the substrate downward from the U-shaped holding portion 101 in the first direction . Three legs 106, 107, 108 to be inserted into the 114 or the like. The tip portions of the legs 106, 107, and 108 have a structure that is bent outwardly in a U-shape as the second direction . That is, the legs 106, 107, 108 extend downward as a whole, but each of them is bent obliquely outward in the middle and again bent obliquely in the opposite direction.

  The entire fixing member 100, that is, the holding portion 101 (including the square protrusions 102, 103, 104, and 105) and the legs 106, 107, and 108 are integrally formed of a metal plate exhibiting elasticity. Therefore, the fixing member 100 is manufactured at a low cost.

  FIG. 3 shows a state in which the optical receptacle 202 is held by the holding portion 101 of the fixing member 100. FIG. 3A shows the fixing member 100 and the optical receptacle 202 as viewed from the front, that is, from the side where the optical plug (end portion of the optical fiber) is inserted into the optical receptacle 202. 3B is a view of FIG. 3A viewed from the left side, FIG. 3C is a further view of FIG. 3B viewed from the left side, and FIG. The figure which looked at the thing of b) from the upper side is each shown.

  Since the optical receptacle 202 is composed of a plurality of members, and the member 203 covering the main body of the optical receptacle 202 is visible on the table, the protruding portions 104 and 105 of the fixing member 100 are not visible on the table. Further, the remaining protruding portions 102 and 103 of the fixing member 100 are also slightly hidden. The optical receptacle 202 is firmly held by the holding portion 101 of the fixing member 100 by the engagement between the member 203 covering the optical receptacle and the four protrusions 102, 103, 104, and 105.

  The optical receptacle 202 has three lead pins (connection terminals) 204 protruding from the housing. The lead pins 204 are soldered to the board.

  Further, the optical receptacle 202 has an openable / closable shutter 205 on the front surface (front surface) shown in FIG. When the optical plug (end of the optical fiber) is inserted into the optical receptacle 202, the shutter 205 is pushed open by the optical plug.

  In this example, when the three legs 106, 107, 108 of the fixing member 100 are inserted into the through holes of the substrate, the end portion of the optical fiber cable is in relation to the substrate surface, as is apparent from the figure. It is arranged vertically (this is called “cable vertical type”). This vertical cable type arrangement has an advantage that an optical plug (an end portion of an optical fiber cable) can be easily inserted into the optical receptacle 202.

  Now, with the optical receptacle 202 held by the holding portion 101 of the fixing member 100 as described above, the three legs 106, 107, 108 of the fixing member 100 are inserted into through holes formed in the substrate. The For example, as shown in FIG. 2A, the legs 107 and 108 of the fixing member 100 are inserted into the through holes 113 and 114 of the substrate 111 (the remaining legs 106 are similarly inserted into the through holes not shown). ). At this time, since the tip portions of the plate members forming the legs 106, 107, 108 are bent in a U-shape, the legs 106, 107, 108 are in the middle of being inserted into the through holes formed in the substrate. The portion abuts against the inner edge of the through hole, and the legs 106, 107, 108 can be easily retracted in a direction away from the inner edge of the through hole by their own elasticity. In addition, after the legs 106, 107, 108 are inserted into the through holes, the legs 106, 107, 108 are restored by their own elasticity and come into contact with the inner edge of the through hole on the back side of the substrate. For example, as shown in FIG. 2A, the slanted portions 109 and 110 of the feet 107 and 108 are in contact with the inner edges 115 and 116 of the through holes 110 and 114 on the back side of the substrate (the remaining feet 106). Will be in the same state). Then, stress is applied to the legs 106, 107, 108 inward from the inner edge of the through hole. As a result, the optical receptacle 202 can be easily and reliably fixed to the substrate 111 with one touch without performing a screwing operation or a welding operation. In addition, since the optical receptacle 202 can be locked to the substrate 111 at a plurality of locations (foot 106, 107, 108), the optical receptacle 202 can be more firmly fixed to the substrate 111. As a result, when the lead pin 204 protruding from the housing of the optical receptacle 202 is soldered to the substrate 111, the optical receptacle 202 is not displaced with respect to the substrate 111. Therefore, the lead pin 204 is easily soldered to the substrate 111. Therefore, the assembly work of the electronic device using the substrate 111 is facilitated.

  Further, as shown in FIG. 2A, the slanted portions 109, 110 of the legs 107, 108 are in contact with the inner edges 115, 116 of the through holes 110, 114 on the back side of the substrate ( The remaining legs 106 are in the same state.) The “oblique portions” 109 and 110 actually have a finite length instead of one point. Therefore, even if the thicknesses of the substrates are different, the positions of the inner edges 119, 120 of the through holes 117, 118 are set to be variable in advance according to the thickness of the substrate 112, as shown in FIG. Thus, when the feet 107 and 108 are inserted into the through holes 117 and 118, the inclined portions 109 and 110 (of which the different points) of the feet 107 and 108 are formed on the back side of the substrate 112. It is possible to make contact with the inner edges 119, 120 (the remaining legs 106 are in the same state).

  In this example, since the substrate 112 is thicker than the substrate 111, the positions of the inner edges 119, 120 of the through holes are shifted accordingly from the “oblique portions” 109, 110. For example, when the thickness of the substrate 111 shown in FIG. 2A is 1.2 mm and the thickness of the substrate 112 shown in FIG. The position of the inner edges 119 and 120 of the through holes may be shifted by converting 4 mm into the horizontal direction according to the gradient of the “slanted portions” 109 and 110.

  Thereby, even when the thicknesses of the substrates are different, the optical receptacle 202 is easily and reliably fixed to the substrate. This means that the optical receptacle 202 can be attached to the substrate using the same fixing member 100 for a plurality of products. Therefore, the assembly work of various electronic devices can be simplified as a whole, and the cost can be reduced.

FIG. 4A is a view of an optical receptacle fixing member 300 of another reference example, which is the basis of the present invention, seen from the front, that is, from the side where an optical plug (end portion of an optical fiber) is inserted into the optical receptacle described later. Is shown. 4B shows the fixing member 300 viewed from the left side, FIG. 4C shows the fixing member 300 viewed from the right side, and FIG. 4D shows the fixing member 300 viewed from the upper side. As seen, FIG. 4E shows the fixing member 300 viewed from the lower side.

  The fixing member 300 includes a band-shaped holding portion 301 that is bent in a U-shape to hold the optical receptacle. The optical receptacle enters and is held in the middle space 390 bent in a U-shape of the holding portion 301.

  The holding portion 301 of the fixing member 300 includes two to four rectangular protrusions 302, 303, 304, and 305 extending forward, and the optical protrusions are formed by these four protrusions 302, 303, 304, and 305. Is to hold firmly. Since the portions 302a and 303a of the protrusions 302 and 303 provided at the lower end of the holding portion 301 are bent inward in parallel to the protrusion direction, the optical receptacle can be held more firmly. Further, holes 302b and 303b are formed in the protrusions 302 and 303, respectively. The holes 302b and 303b serve to prevent the solder from creeping up when soldering lead pins (connection terminals) protruding from the housing of the optical receptacle to the substrate.

The fixing member 300 has through holes provided in the substrate downward from the tips of the protrusions 302 and 303 in the first direction (for example, through holes 113 and 114 of the substrate 111 shown in FIG. 2A). The legs 306 and 307 to be inserted are extended. The tip portions of the legs 306 and 307 have a structure that is bent in an outward-shaped shape as the second direction . That is, the legs 306 and 307 extend downward as a whole, but each of them is bent obliquely outward in the middle and again bent obliquely in the opposite direction.

  The whole fixing member 300, that is, the holding portion 301 (including the square protrusions 302, 303, 304, and 305) and the legs 306 and 307 are integrally formed of a metal plate that exhibits elasticity. Therefore, the fixing member 300 is manufactured at a low cost.

  FIG. 5 shows a state where the optical receptacle 402 is held by the holding portion 301 of the fixing member 300. FIG. 5A shows the fixing member 300 and the optical receptacle 402 as viewed from the front, that is, from the side where the optical plug (end portion of the optical fiber) is inserted into the optical receptacle 402. 5B is a view of FIG. 5A viewed from the left side, FIG. 5C is a further view of FIG. 5B viewed from the left side, and FIG. The figure which looked at the thing of b) from the upper side is each shown.

  Since the optical receptacle 402 is composed of a plurality of members, and the member 403 covering the main body of the optical receptacle 402 is visible on the table, the protruding portions 304 and 305 of the fixing member 300 are not visible on the table. Further, the remaining protruding portions 302 and 303 of the fixing member 300 are also slightly hidden. The optical receptacle 402 is firmly held by the holding portion 301 of the fixing member 300 by the engagement of the member 403 covering the optical receptacle with the four protrusions 302, 303, 304, and 305.

  The optical receptacle 402 has three lead pins (connection terminals) 404 protruding from the housing. The lead pins 404 are soldered to the board.

  The optical receptacle 402 has an openable / closable shutter 405 on the front surface (front surface) shown in FIG. When the optical plug (end of the optical fiber) is inserted into the optical receptacle 402, the shutter 405 is pushed open by the optical plug.

  In this example, when the two legs 306 and 307 of the fixing member 300 are inserted into the through holes of the board, the end of the optical fiber cable is parallel to the board surface, as is apparent from the figure. (This is called “cable parallel type”). This parallel cable type arrangement has the advantage that no space is required for the optical fiber cable to pass on the substrate.

  With the optical receptacle 402 held by the holding portion 301 of the fixing member 300, the three legs 306 and 307 of the fixing member 300 are inserted through the through holes formed in the substrate. Thereby, the same effect as the case of using the fixing member 100 is obtained. That is, the optical receptacle 402 is easily and reliably fixed to the substrate with a single touch without performing a screwing operation or a welding operation. As a result, when the lead pin 404 protruding from the housing of the optical receptacle 402 is soldered to the substrate, the optical receptacle 402 is not displaced with respect to the substrate. Therefore, the lead pin 404 is easily soldered to the substrate. Therefore, the assembly work of the electronic device using the substrate is facilitated. Further, even when the thickness of the substrate is different, the optical receptacle 402 is easily and reliably fixed to the substrate. Therefore, the optical receptacle 402 can be attached to the substrate using the same fixing member 300 for a plurality of products. Therefore, the assembly work of various electronic devices can be simplified as a whole, and the cost can be reduced.

FIG. 6A shows the optical receptacle fixing member 500 according to one embodiment of the present invention as viewed from the front, that is, from the side where the optical plug (end portion of the optical fiber) is inserted into the optical receptacle. 6B shows the fixing member 500 viewed from the left side, FIG. 6C shows the fixing member 500 viewed from the right side, and FIG. 6D shows the fixing member 500 viewed from the upper side. As seen, FIG. 6E shows the fixing member 500 as viewed from below.

  This fixing member 500 is intended for a cable vertical type arrangement, and is basically configured in the same manner as the fixing member 100 shown in FIG. In addition, the code | symbol which added only 400 is respectively used for the element corresponding to the code | symbol in FIG. 1, and the overlapping description is abbreviate | omitted.

The fixing member 500 is different from the fixing member 100 shown in FIG. 1 in that a slit is formed at the tip portion of the plate material forming the legs 506, 507, and 508, and the tip portion is third through the slit . It is a point that spreads in the lateral direction as the direction of, that is, the direction in which the polygonal broken line extends. For example, as shown in an enlarged view in FIG. 6 (f), a slit 508c is formed at the front end portion of the plate material forming the foot 508, and the front end portions 508a and 508b are spread laterally through the slit 508c (the remaining portions). The same applies to the feet 506 and 507.)

  With the optical receptacle held by the holding portion 501 of the fixing member 500, the three legs 506, 507, and 508 of the fixing member 500 are inserted through through holes formed in the substrate. Thereby, the same effect as the case of using the fixing member 100 is obtained. Moreover, with this fixing member 500, the following operational effects can be obtained for substrates having different thicknesses.

  For example, FIGS. 7A and 7B show a state where the legs 506 are inserted into the through holes 513 of the thin substrate 511 having a thickness of 1.2 mm, and FIGS. 7C and 7D are thick. The state where the foot 506 is inserted into the through hole 515 of the 1.6 mm substrate 512 is shown. The through hole 513 has inner edges 514a, 514b, 514c, and 514d, and the through hole 515 has inner edges 516a, 516b, 516c, and 516d. FIGS. 7A and 7C are views seen from the direction in which the bending of the letter “U” is clearly understood along the surface of the plate material forming the foot 506, and FIGS. It is the figure seen from the direction perpendicular | vertical to the surface of the board | plate material which makes | forms.

As shown in FIG. 7 (b), the thickness of the thin Imoto plate 511, a pair of inner edge 514c that faces of the inner edge of the through hole 513, 514d in the lateral direction of the foot 506 (dogleg fold line extending In the direction), the portions 510 and 510 which are spread and inclined are in contact with each other. Thereby, the optical receptacle is firmly fixed to the substrate 511.

  Further, as shown in FIG. 7C, in the thick substrate 512, the inclined portion 509 of the foot 506 is in contact with the inner edge 516 a of the through hole 515. Thereby, the optical receptacle is firmly fixed to the substrate 512.

  As described above, according to the fixing member 500, the substrates 511, 512 having different thicknesses of the optical receptacle are formed by using the portions 510, 509 that are inclined in the intersecting directions of the legs 506, 507, 508. Can be firmly fixed against each other.

  FIG. 8A shows the optical receptacle fixing member 600 of still another embodiment as viewed from the front, that is, from the side where the optical plug (end portion of the optical fiber) is inserted into the optical receptacle. 8B shows the fixing member 600 viewed from the left side, FIG. 8C shows the fixing member 600 viewed from the right side, and FIG. 8D shows the fixing member 600 viewed from the upper side. As seen, FIG. 8E shows the fixing member 600 viewed from below.

  The fixing member 600 is intended to be a cable parallel type arrangement, and is basically configured in the same manner as the fixing member 300 shown in FIG. In addition, the code | symbol which added only 300 is respectively used for the element corresponding to the code | symbol in FIG. 4, and the overlapping description is abbreviate | omitted.

  The fixing member 600 is different from the fixing member 300 shown in FIG. 4 in that a slit is formed at the tip portion of the plate material forming the feet 606 and 607, and the tip portion is laterally passed through the slit. In other words, it is a point where the polygonal broken line extends in the extending direction. For example, as shown in an enlarged view in FIG. 8 (f), a slit 607c is formed at the leading end portion of the plate material forming the foot 607, and the leading end portions 607a and 607b spread laterally through the slit 607c (the remaining portions). The same applies to the foot 606.)

  With the optical receptacle held by the holding portion 601 of the fixing member 600, the two legs 606 and 607 of the fixing member 600 are inserted into through holes formed in the substrate. Thereby, the effect similar to the case where the fixing member 300 is used is obtained. Moreover, in this fixing member 600, similarly to the fixing member 500 shown in FIG. 6, the thicknesses of the optical receptacles are different by using the portions of the legs 606, 607 that are inclined in the intersecting direction. Each can be firmly fixed to the substrate.

  FIG. 9A shows the optical receptacle fixing member 700 of still another embodiment as viewed from the front, that is, from the side where the optical plug (end portion of the optical fiber) is inserted into the optical receptacle. 9B shows the fixing member 700 viewed from the left side, FIG. 9C shows the fixing member 700 viewed from the right side, and FIG. 9D shows the fixing member 700 viewed from the upper side. As seen, FIG. 9E shows the fixing member 700 viewed from below.

  This fixing member 700 is intended for a vertical cable type arrangement, and is basically configured in the same manner as the fixing member 100 shown in FIG. In addition, the code | symbol which added only 600 is respectively used for the element corresponding to the code | symbol in FIG. 1, and the overlapping description is abbreviate | omitted.

  The fixing member 700 is different from the fixing member 100 shown in FIG. 1 in that a slit is formed at the tip portion of the plate material forming the feet 706, 707, and 708, and the tip portions are opposite to each other via the slit. It is a point that is bent in the shape of a circle in the direction.

  With the optical receptacle held by the holding portion 701 of the fixing member 700, the three legs 706, 707, and 708 of the fixing member 700 are inserted through the through holes formed in the substrate. Thereby, the same effect as the case of using the fixing member 100 is obtained. Moreover, with this fixing member 700, the following operational effects can be obtained for substrates having different thicknesses.

  For example, in FIG. 10A, feet 707 and 708 are inserted into the through holes 713 and 714 of the substrate 711, respectively, and the inclined portions 709 a, 709 b, 709 c, and 709 d of the substrate 711 are the back side of the substrate 711. Thus, the two inner edges 715a, 715b; 716a, 716b facing each other of the through holes 713, 714 are in contact with each other (the remaining legs 706 are also in the same state). The “oblique portions” 709a, 709b, 709c, and 709d actually have a finite length instead of one point. Therefore, even if the thicknesses of the substrates are different, the positions of the inner edges 719a, 719b; 720a, 720b of the through holes 717, 718 are set in advance according to the thickness of the substrate 712, as shown in FIG. By variably setting, the inclined portions 709a, 709b, 709c, and 709d of the legs 707 and 708 (of which different points) are the two inner edges of the through-holes facing each other on the back side of the substrate 712. 719a, 719b; 720a, 720b (the remaining feet 706 are in the same state). Therefore, the optical receptacle is firmly fixed to the substrate.

  In this example, since the substrate 712 is thicker than the substrate 711, the positions of the two inner edges 719 a, 719 b; 720 a, 720 b facing each other of the through holes are accordingly changed to “slanted portions” 709 a, 709 b, Shifting away from 709c and 709d. For example, when the thickness of the substrate 711 shown in FIG. 2A is 1.2 mm and the thickness of the substrate 712 shown in FIG. The position of the inner edges 719, 120 of the through holes may be shifted by converting 4 mm into the horizontal direction according to the gradient of the “slanted portions” 709a, 709b, 709c, 709d.

  Thereby, even if the thickness of the substrate is different, the optical receptacle is easily and reliably fixed to the substrate. This means that the optical receptacle can be attached to the substrate using the same fixing member 700 for a plurality of products. Therefore, the assembly work of various electronic devices can be simplified as a whole, and the cost can be reduced.

  In addition, although the above embodiment demonstrated the case where there were two or three legs of the fixing member, naturally the number of legs may be changed as necessary.

  Further, the case where the thickness of the substrate is 1.2 mm and 1.6 mm has been described, but the present invention can naturally be adapted to various substrate thicknesses.

  Further, the optical receptacle mounting member (optical receptacle mounting structure) using the optical receptacle fixing member described above is suitably applied to various electronic devices. In this case, since the optical receptacle is easily and reliably fixed to the substrate using the optical receptacle fixing member at the time of assembly, the lead pins protruding from the optical receptacle housing are easily soldered to the substrate. Therefore, this electronic device can be easily assembled.

It is a figure which shows the structure of the member for optical receptacle fixing of the reference example used as the foundation of this invention. It is a figure explaining the function of the member for optical receptacle fixation of FIG. It is a figure which shows the state which attached the fixing member of FIG. 1 to the optical receptacle. It is a figure which shows the structure of the member for optical receptacle fixing of another reference example used as the foundation of this invention. It is a figure which shows the state which attached the fixing member of FIG. 4 to the optical receptacle. It is a figure which shows the structure of the member for optical receptacle fixing of one Embodiment of this invention. It is a figure explaining the function of the member for optical receptacle fixings of FIG. It is a figure which shows the structure of the member for optical receptacle fixing of another embodiment of this invention. It is a figure which shows the structure of the member for optical receptacle fixing of another embodiment of this invention. It is a figure explaining the function of the member for optical receptacle fixation of FIG.

Explanation of symbols

100, 300, 500, 600, 700 Optical receptacle fixing member 111, 112, 511, 512, 711, 712 Substrate 202, 402 Optical receptacle

Claims (7)

An optical receptacle fixing member for attaching an optical receptacle to a substrate,
A holding portion for holding the optical receptacle;
A leg that extends substantially in the first direction from the holding portion and that shows elasticity inserted through a through hole formed in the substrate;
The feet in contact with the inner edge of the through hole on the back side of the substrate, have a portion skewed with respect to the first direction,
The tip portion of the plate material forming the foot is bent in a dogleg shape with respect to the first direction and the second direction perpendicular to the surface of the other portion of the plate material,
A slit is formed in the tip portion of the plate material forming the foot, and the tip portion extends through the slit in a third direction perpendicular to the first and second directions,
Of the portion of the plate that is bent in the U-shape with respect to the second direction, the slope portion that faces the holding portion, and the outer edge of the plate that extends through the slit in the third direction, A member for fixing an optical receptacle, characterized in that each of the portions is inclined with respect to the first direction . The optical receptacle fixing member according to claim 1,
An optical receptacle fixing member, wherein the holding portion and the foot are integrally formed of a metal plate. The optical receptacle fixing member according to claim 1 ,
The optical receptacle fixing member , wherein a tip portion of the plate material forming the foot is bent in a U-shape in opposite directions with respect to the second direction through the slit. The optical receptacle fixing member according to claim 1,
The optical receptacle fixing member, wherein the holding portion includes a rectangular protrusion for holding the optical receptacle. An optical receptacle mounting structure in which an optical receptacle is attached to a substrate using the optical receptacle fixing member according to claim 1,
The optical receptacle is held by the holding portion of the optical receptacle fixing member,
The leg of the optical receptacle fixing member is inserted into a through hole formed in the substrate,
The optical receptacle mounting structure, wherein the inclined portion of the foot is in contact with the inner edge of the through hole on the back side of the substrate. The optical receptacle mounting structure according to claim 5 ,
The position of the inner edge of the through hole is variably set according to the thickness of the substrate so that the inclined portion of the foot contacts the inner edge of the through hole on the back side of the substrate. An optical receptacle mounting structure characterized by An electronic apparatus comprising the optical receptacle mounting structure according to claim 5 .

Images