JP5358649B2 - Embedded optical receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an embedded-type optical receiver capable of reducing a portion exposed to indoor space. <P>SOLUTION: An optical receiver 1 is configured by storing, in a housing 10, an optical connector 40 for connecting an optical cable, a coaxial terminal 20 for connecting a coaxial cable, and a photoelectric converting section 50 for converting an optical signal input by way of the optical connector into an electrical signal and outputting the electrical signal to the coaxial terminal 20. A mounting adaptor for embedding and fixing at least a portion of the housing 10 into an installation face is included to install the optical receiver 1. The housing 10 contains a first circuit substrate 61 and a second circuit substrate 62. The optical connector 40 has a photodiode 41 for receiving an optical signal output from the optical cable. The photodiode 41 is arranged in an opposed space 63 formed between vicinal faces by mutually and almost orthogonally arranging the first circuit substrate 61 and the second substrate 62. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to an optical receiver that receives an optical signal and converts it into an electrical signal.

  In response to the rapid increase in the amount of information distribution due to the expansion of the Internet in recent years, FTTH (Fiber To The Home), which is a data communication service for homes using optical fibers, is rapidly spreading to ordinary homes. In this FTTH, an optical cable including an optical fiber is drawn into an indoor such as a general house via an outdoor optical receiver and connected to an indoor optical receiver (ONU: Optical Network Unit) installed indoors. Is done. Then, the communication data relayed through the indoor optical receiver is transmitted to each device such as a personal computer or a TV in the home (for example, see Patent Document 1).

  As such an optical receiver, there are an outdoor optical receiver attached to an outdoor wall surface of a general household and an indoor optical receiver installed on an indoor floor or wall surface of a general household. Among these, conventional indoor optical receivers are designed on the assumption that they are exposed in an indoor space, just like set-top boxes for TV reception, etc. It was comprised by accommodating an electrical element. Conventionally, this casing is attached to the indoor wall surface by screwing or the like from the indoor side or placed on the indoor floor surface.

JP 2005-025094 A

  However, since such a conventional indoor optical receiver is disposed in a state of being completely exposed to the indoor space, it is necessary to secure an installation space for the indoor optical receiver indoors. There has been a problem that the optical receiver gets in the way of the user, becomes a subject of mischief such as children, or impairs the beauty of the room.

  The present invention has been made in view of the above, and an object of the present invention is to provide an embedded optical receiver capable of reducing an exposed portion to an indoor space.

In order to solve the above-described problems and achieve the object, the present invention according to claim 1 is an optical cable connecting means for connecting an optical cable, a signal line connecting means for connecting a signal line, and the optical cable. An optical receiver configured to accommodate a photoelectric conversion means that converts an optical signal input through the connection means into an electrical signal and outputs the electrical signal to the signal line connection means, the housing And a fixing means for embedding and fixing at least a part of the optical receiver in an installation surface for installing the optical receiver, and the casing includes a first circuit board and a planar shape of the first circuit board A second circuit board formed in a smaller planar shape , and the first circuit board is disposed so as to be substantially parallel to a surface on the exposed surface side of the housing, The second circuit board is substantially orthogonal to the first circuit board. And an optical signal receiving element that is disposed so as to protrude from the first circuit board toward the non-exposed surface side of the housing and receives an optical signal output from the optical cable, An optical signal receiving element that is longer than the length of the circuit board in the protruding direction is connected to the optical cable connecting means so that the longitudinal direction of the optical signal receiving element is substantially parallel to the first circuit board. The optical signal receiving element is disposed in a facing space formed between the adjacent surfaces of the first circuit board and the second circuit board, and the connection port of the optical cable connecting means is not exposed to the casing. The optical cable connecting means is connected to the second circuit board via the optical signal receiving element so as to be exposed to the outside from a lower surface of a part of the surface side surface .
According to a second aspect of the present invention, in the first aspect of the present invention, a power line connecting means for connecting a power line for supplying power to the optical receiver is provided on the first circuit board. The power supply line connecting means is disposed at a position where the connection port of the power supply line connecting means is exposed to the outside from the exposed surface side of the housing.

According to the first aspect of the present invention, the optical receiver can be embedded and fixed in various installation surfaces such as a wall surface, and a portion of the optical receiver that does not require user access is located behind the installation surface. Since it can be accommodated, even when the optical receiver is installed indoors, it is not necessary to secure the installation space for this optical receiver indoors.In addition, the optical receiver may interfere with users, children, etc. Can be prevented from being mischievous or detracting from the beauty of the room.
In addition, according to the present invention, noise can be reduced by directly inserting the optical signal receiving element into the first circuit board or the second circuit board, and the optical signal receiving element is accommodated in the facing space. The housing can be reduced in size.

1 is an overall perspective view of an optical receiver according to a first embodiment of the present invention. 2A and 2B are diagrams showing an optical receiver, in which FIG. 2A is a front view, FIG. 2B is a side view, FIG. 2C is a plan view, FIG. 2D is a bottom view, and FIG. It is -A arrow sectional drawing. It is a rear view of an optical receiver. It is a disassembled perspective view of an optical receiver. It is a perspective view which shows the connection state of the various cables with respect to an optical receiver. It is a side view of the state which attached the optical receiver to the wall surface with the fixture. It is a disassembled perspective view of an optical receiver and its fixture. 6 is an overall perspective view of the optical receiver according to Embodiment 2 as viewed from the front side. FIG. It is the whole perspective view seen from the rear surface side of an optical receiver. It is a figure which shows an optical receiver, Comprising: (a) is a rear view, (b) is a bottom view, (c) is a side view. It is a disassembled perspective view which shows the state which removed the surplus length process part from the optical receiver. It is a figure which shows a surplus length process part, Comprising: (a) is a rear view, (b) is a top view, (c) is a side view, (d) is a front view. It is the perspective view which looked at the surplus length process part from the front side. It is a whole perspective view which shows the optical receiving unit which concerns on Embodiment 3 with a fixture. It is a figure which shows an optical receiver unit with an attachment instrument, Comprising: (a) is a front view, (b) is a side view, (c) is a bottom view. It is a rear view which shows an optical receiving unit with a fixture. It is a figure which shows a power adapter, Comprising: (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is a rear view. It is a disassembled perspective view of an optical receiving unit and its fixture. It is a front view which shows the optical receiving unit which concerns on Embodiment 4 with an attachment instrument. It is a figure which shows a power adapter, Comprising: (a) is a front view, (b) is a side view, (c) is a bottom view, (d) is a rear view.

  Hereinafter, embodiments of an embedded optical receiver (hereinafter simply referred to as an optical receiver) and an embedded optical receiver unit according to the present invention will be described in detail with reference to the accompanying drawings. First, [I] the basic concept common to each embodiment was explained, then [II] the specific contents of each embodiment were explained, and [III] finally, a modification to each embodiment was explained. To do. However, the present invention is not limited by these embodiments.

[I] Basic concept common to the embodiments First, the basic concept common to the embodiments will be described. Each embodiment relates generally to an optical receiver and an optical receiving unit. As with conventional indoor optical receivers, the optical receiver is connected to an optical cable drawn in from the outdoors and a signal line drawn out indoors, and converts the optical signal transmitted from the optical cable into an electric signal to be converted into a signal line. Output. The specific type of the signal line is arbitrary, but in the following, a coaxial cable that is a typical signal line will be described as an example.

  Here, one of the features of the optical receiver is that it is an embedded optical receiver provided with a fixing means for embedding and fixing at least a part of the casing constituting the optical receiver on a wall surface (mainly indoor wall surface). It is in being configured as. In other words, by adopting an embedded fixed structure for the optical receiver, the portion of the optical receiver that is exposed to the indoor space is significantly reduced, so that the optical receiver does not interfere with the user, and the optical receiver The machine is not subject to mischief such as a child, and furthermore, the indoor aesthetics are not impaired by the optical receiver. In this way, the optical receiver having an embedded structure itself is a novel thing that cannot be seen in the prior art, but in each embodiment, various new features that can occur when such an embedded structure is adopted are also included. By eliminating various problems, further effects such as improving the convenience and reliability of the optical receiver can be obtained.

[II] Specific contents of each embodiment The specific contents of the first to fourth embodiments will be sequentially described in detail below with reference to the accompanying drawings.

[Embodiment 1]
First, specific contents of the first embodiment according to the present invention will be described in detail. In the first embodiment, signal line connecting means and power line connecting means are provided on the exposed surface, and optical cable connecting means are provided on the non-exposed surface.

(Configuration of optical receiver)
First, the configuration of the optical receiver will be described. 1 is an overall perspective view of the optical receiver according to the first embodiment, FIG. 2 is a diagram illustrating the optical receiver, (a) is a front view, (b) is a side view, and (c) is a plan view. FIG. 4D is a bottom view, FIG. 3E is a cross-sectional view taken along the line AA of FIG. 4A, FIG. 3 is a rear view of the optical receiver, and FIG. 4 is an exploded perspective view of the optical receiver. In the following description, the X direction in FIG. 1 is the front-rear direction, the Y direction is the left-right direction, and the Z direction is the up-down direction. The optical receiver 1 has a coaxial terminal 20 and a power supply terminal 30 on the front surface (front surface) of the housing 10, an optical connector 40 on the rear surface (rear surface) of the housing 10, and further inside the housing 10. The photoelectric conversion circuit 50 and the circuit board 60 are accommodated.

  As shown in FIG. 4, the housing 10 includes a housing body 11 and a rear plate 12 attached to the rear surface of the housing body 11. The housing main body 11 is formed in a hollow box shape with an open rear surface, and the circuit board 60 and the photoelectric conversion circuit 50 can be accommodated in the internal space of the housing main body 11. The front surface of the housing main body 11 is formed in a substantially planar shape, and a coaxial terminal 20 is disposed at the upper portion and a power supply terminal 30 is disposed at the lower portion. A front cover 13 is disposed on the front surface of the housing main body 11, and the front cover 13 detachably locks the locking claws 13 a formed on the left and right sides of the housing main body 11. The housing body 11 is detachably attached. Holes 13b to 13e are formed in the front cover 13, and the coaxial terminal 20, the power terminal 30, and the power lamp 14 and the light input lamp 15 (to be described later) are provided in the indoor space through the holes 13b to 13e. Exposed to. In addition, linear attachment grooves 11a extending in the vertical direction are integrally formed on the upper and lower sides of the housing body 11 so as to detachably attach an attachment adapter described later.

  As shown in FIGS. 1, 2, and 4, a power lamp 14 is provided on the front surface of the housing 10 of the optical receiver 1. The power lamp 14 performs display related to the state of power supply to the optical receiver 1 and corresponds to power display means in the claims. Specifically, the power lamp 14 is configured by an LED (Light Emitting Diode), and is connected to a voltage dividing circuit (not shown) that is voltage-divided from the power supply system of the optical receiver 1. Lights up when power over a predetermined voltage is supplied. Therefore, the user can easily confirm the power supply state to the optical receiver 1 by visually observing the power lamp 14.

  An optical input lamp 15 is provided on the side of the power lamp 14 on the front surface of the housing 10 of the optical receiver 1. This optical input lamp 15 performs display related to the input state of the optical signal to the optical receiver 1, and corresponds to the optical signal input display means in the claims. The light input lamp 15 is specifically composed of an LED, and is connected to a voltage dividing circuit (not shown) that is divided from an electric signal input system to the photoelectric conversion circuit 50, and a predetermined voltage is applied to the photoelectric conversion circuit 50. Lights when the above signals are input. Therefore, the user can easily confirm the input state of the optical signal to the optical receiver 1 by viewing the optical input lamp 15.

  FIG. 5 shows the connection state of various cables to the optical receiver 1. A connector hook 16 is provided on the front surface of the housing 10 of the optical receiver 1. The connector hook 16 is a fixing means for fixing a power cable C1 as a power line connected to the power terminal 30 on the front surface of the housing 10. Specifically, the connector hook 16 is formed integrally with the front cover 13 and protrudes from the front cover 13 to the front in a substantially plane J shape. As shown in FIG. 5, the power connector C <b> 1 a of the power cable C <b> 1 can be locked and fixed inside the connector hook 16. Therefore, the attachment state of the power cable C1 can be clearly summarized on the appearance, and the power cable C1 can be prevented from being accidentally detached or dropped from the optical receiver 1. As a specific locking procedure, first, the power connector C1a is connected to the power terminal 30 in a direction substantially along the left-right direction, and the power connector C1a is rotated in the vertical plane with the power terminal 30 as a rotation axis. Thus, the locked state shown in FIG. 5 can be obtained.

  As shown in FIGS. 3 and 4, the rear plate 12 is detachably screwed to the housing main body 11 with a mounting screw 81 a, and the rear surface of the housing main body 11 is closed. The internal space of the housing body 11 is sealed, and this internal space is used as a sealed space for preventing electromagnetic interference (EMI). A 12b hole is formed in the vicinity of the center of the rear plate 12, and the optical connector 40 is exposed from the rear plate 12 to the space in the wall when the optical connector 40 is inserted into the hole 12b. In particular, the rear plate 12 is formed as an inclined surface that approaches the front side as it goes downward, so that the optical connector 40 is disposed so as to face downward from the rear plate 12, so that the dust in the wall space And the like are prevented from being deposited on the optical connector 40. Although the specific material and manufacturing method of the housing 10 thus configured are arbitrary, it is preferably formed of a metal having high electromagnetic shielding properties from the viewpoint of preventing electromagnetic interference, for example, by aluminum die casting. Manufactured.

  As shown in FIGS. 1 to 4, an attachment adapter 17 is detachably attached to the housing 10. This attachment adapter 17 is for embedding and fixing the housing 10 on the wall surface, and corresponds to the fixing means in the claims. The mounting adapter 17 is integrally provided with a locking stay 17a that is detachably locked to the housing body 11 and a fixing plate 17b that is in contact with the outdoor side of the wall surface. The locking stay 17a is formed with a length and a width corresponding to the mounting groove 11a of the housing body 11, and the locking stay 17a can be inserted into the mounting groove 11a from above or below. A locking claw 17c is formed at the tip of the locking stay 17a. The mounting claw 17c is detachably locked to a recess 11b formed in the mounting groove 11a, so that the mounting adapter 17 can be detached. It can be fixed to the housing 10. The fixing plate 17b is formed in a flat plate shape and includes a plurality of screw holes 17d and 17e, and a switch box cover (to be described later) of the optical receiver 1 by screw fixing through the screw holes 17d and 17e. And a decorative plate base, which will be described later, can be fixed to the optical receiver 1.

  The optical connector 40 is for detachably connecting the optical cable C2 shown in FIG. 5, and corresponds to the optical cable connecting means in the claims. The specific structure of the optical connector 40 is arbitrary. For example, the optical connector 40 is configured as an F04 type single-core optical fiber C1 connector (SC type connector) standardized in JIS 5973, and is a push-on type fastening structure using a so-called slide lock structure. Have A cylindrical photodiode 41 is accommodated in the optical connector 40. The photodiode 41 receives an optical signal output from the optical cable C2 connected to the optical connector 40, and corresponds to an optical signal receiving element in claims. Specifically, an optical signal output from an optical fiber (not shown) that is a core wire of the optical cable C2 connected to the optical connector 40 is incident on the photodiode 41 of the optical connector 40 and is converted into an electrical signal as a photoelectric conversion circuit. 50.

  The coaxial terminal 20 is for detachably connecting the coaxial cable C3, and corresponds to the signal line connecting means in the claims. The specific structure of the coaxial terminal 20 is arbitrary. For example, the coaxial terminal 20 is configured as an F-type female connector for connecting an F-male coaxial connector C3a attached to the tip of the coaxial cable C3.

  The power terminal 30 is used for detachably connecting the power cable C1, and corresponds to the power line connecting means in the claims. The specific structure of the power terminal 30 is arbitrary, and is configured as a female connector for connecting an L male power connector C1a attached to the tip of the power cable C1, for example.

  In FIG. 2 (e), the photoelectric conversion circuit 50 converts the electrical signal output from the photodiode 41 into an RF signal and outputs it to the coaxial terminal 20, and corresponds to the photoelectric conversion means in the claims. The specific configuration of the photoelectric conversion circuit 50 is arbitrary. For example, the photoelectric conversion circuit 50 is configured using various filters, modulators, and amplifiers (in FIG. 2E, the photoelectric conversion circuit 50 is simplified for convenience. To show)

  The circuit board 60 is a mounting board for mounting the electric elements of the optical receiver 1 including the photoelectric conversion circuit 50. As shown in FIGS. 2 (e) and 4, the circuit board 60 and the first circuit board 61 It is divided into a second circuit board 62. The first circuit board 61 is arranged along the vertical direction. Further, the second circuit board 62 is arranged along the front-rear direction. That is, the first circuit board 61 and the second circuit board 62 are combined so as to be substantially orthogonal to each other, and by combining in this way, the first circuit board 61 and the second circuit board are combined. An opposing space 63 is formed between the two and 62, on the side where they are close to each other. The photodiodes 41 are arranged along the vertical direction inside the facing space 63. In the photodiode 41, the connection wiring at the upper end thereof is inserted and fixed to the second circuit board 62, and the lower end thereof extends into the optical connector 40 to receive an optical signal.

  In this way, the circuit board 60 is divided into the first circuit board 61 and the second circuit board 62, and the first circuit board 61 and the second circuit board 62 are exposed to the opposing space 63 between them. The reason why the diode 41 is disposed is as follows. That is, in order to reduce noise, it is preferable to shorten the connection wiring of the photodiode 41 as much as possible and insert the connection wiring directly into the circuit board 60. However, in this case, since the photodiode 41 is fixed so as to be orthogonal to the circuit board 60, the circuit board 60 and the photodiode 41 are accommodated when the circuit board 60 is configured as a single flat plate. The casing 10 to be enlarged is enlarged. Therefore, in the first embodiment, the circuit board 60 is divided from the first circuit board 61 and the second circuit board 62, and the photodiode 41 is arranged in the facing space 63 formed between them. Thus, the housing 10 has been successfully reduced in size. However, when it is not necessary to provide the facing space 63 as described above, the circuit board 60 may be constituted by one sheet. Even when it is necessary to provide the facing space 63, the circuit board 60 is formed of a flexible substrate and curved in a substantially L shape, whereby the facing space 63 can be formed and the photodiode 41 can be arranged. The configuration of the substrate 60 can be further simplified.

(Mounting structure of optical receiver 1)
Next, a structure for attaching the thus configured optical receiver 1 to a wall surface will be described. FIG. 6 is a side view showing a state in which the optical receiver is attached to the wall surface together with the fixture, and FIG. 7 is an exploded perspective view of the optical receiver and the fixture. Here, a switch box 70, a switch box cover 71, a decorative plate base 72, and a decorative plate 73 are used as attachment tools for attaching the optical receiver 1 to the wall surface W. Schematically, as shown in FIG. 6, a switch box 70 and a switch box cover 71 are fixed to a side not exposed to the indoor space (hereinafter, non-exposed side), and the optical receiver 1 is attached to the switch box 70. The rear part is housed. In addition, the front surface of the optical receiver 1 is exposed to the side exposed to the indoor space (hereinafter, exposed side) of both sides of the wall surface W, and the decorative plate base 72 and the makeup are formed on the front surface of the optical receiver 1. The plate 73 is fixed.

  As shown in FIG. 7, the switch box 70 is formed in a hollow rectangular shape with an open front, and has an accommodating space portion that can receive the rear portion of the optical receiver 1 therein. A wiring pipe (not shown) is connected to the upper surface of the switch box 70, and the optical cable C2 can be drawn into the switch box 70 through the wiring pipe. The switch box cover 71 is a rectangular frame-shaped member that abuts against the non-exposed surface of the wall surface W, and the optical receiver 1 can be taken in and out of the switch box 70 through the central opening 71a. The upper and lower side pieces of the switch box cover 71 are provided with screw holes 71b (only the upper screw hole 71b is shown in FIG. 7), and the mounting screws 71c inserted into the screw holes 71b are connected to the switch box 70. The switch box cover 71 can be screwed to the switch box 70 by screwing into the screw hole 70a. In addition, screw holes 71 d are provided above and below the opening 71 a of the switch box cover 71, and the mounting screws 17 f inserted through the screw holes 17 d of the mounting adapter 17 of the optical receiver 1 are connected to the switch box cover 71. The optical receiver 1 can be fixed to the switch box cover 71 by screwing into the screw hole 71d. By fixing the optical receiver 1 to the switch box cover 71 in this way, the wall surface W is sandwiched between the mounting adapter 17 of the optical receiver 1 and the upper, lower, left, and right side pieces of the switch box cover 71, and the optical receiver 1 The machine 1 can be fixed to the wall surface W.

  The decorative plate base 72 is a rectangular frame-shaped member that abuts against the exposed surface of the wall surface W, and has an opening 72a having a height and width substantially corresponding to the front of the housing body 11 of the optical receiver 1 at the center thereof. Is formed. Screw holes 72b are formed in the upper and lower side pieces of the decorative plate base 72, and the mounting screws 72c screwed into the screw holes 72b are screwed into the screw holes 17e of the mounting adapter 17 of the optical receiver 1. The decorative plate base 72 can be fixed to the optical receiver 1. The decorative plate 73 is a rectangular frame-like member that is detachably attached to the decorative plate base 72, and an opening having a height and a width that substantially corresponds to the front surface of the housing body 11 of the optical receiver 1. 73a is formed. An engagement claw (not shown) is formed on the surface of the decorative plate 73 that faces the decorative plate base 72. The decorative plate 73 is detachably engaged with the decorative plate base 72. Can be detachably attached to the decorative plate base 72. When the decorative plate base 72 and the decorative plate 73 are attached in this manner, the coaxial terminal 20 and the power supply terminal 30 of the optical receiver 1 are passed through the opening 72a of the decorative plate base 72 and the opening 73a of the decorative plate 73. Is exposed to the indoor space. This completes the mounting of the optical receiver 1.

(Effect of Embodiment 1)
As described above, according to the first embodiment, the optical receiver 1 can be embedded and fixed in the wall surface W, and a portion of the optical receiver 1 that does not require user access can be accommodated in the wall surface. Even when installed indoors, it is not necessary to secure the installation space of the optical receiver 1 indoors. Further, the optical receiver 1 becomes an object of mischief such as a child or a child. Or the indoor aesthetics can be prevented from being impaired. Further, since the power lamp 14 is provided on the front surface of the housing 10 of the optical receiver 1, the user can easily check the power supply state to the optical receiver 1. Moreover, since the optical input lamp 15 is provided on the front surface of the housing 10 of the receiver, the user can easily confirm the input state of the optical signal to the optical receiver 1. Further, since the connector hook 16 is provided on the front surface of the housing 10 of the optical receiver 1, the attachment state of the power connector can be clearly organized and the power connector is inadvertently detached from the optical receiver 1. It can be prevented from being dropped or dropped out. Further, since the optical connector 40 is disposed downward, it is possible to prevent dust and the like in the wall space from being deposited on the optical connector 40. Further, the circuit board 60 is divided into a first circuit board 61 and a second circuit board 62, and a photodiode is placed in a space 63 between the first circuit board 61 and the second circuit board 62. Since 41 is arranged, noise can be reduced by directly inserting the photodiode 41 into the circuit board 60, and the housing 10 can be downsized.

[Embodiment 2]
Next, the specific content of Embodiment 2 which concerns on this invention is demonstrated in detail. In the second embodiment, the optical receiver is provided with a surplus length processing unit for processing the surplus length portion of the optical cable. However, unless otherwise specified, the configuration is the same as that of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals as those used in the first embodiment, if necessary. To do.

  8 is an overall perspective view as seen from the front side of the optical receiver according to the second embodiment, FIG. 9 is an overall perspective view as seen from the rear side of the optical receiver, and FIG. 10 is a diagram showing the optical receiver. (A) is a rear view, (b) is a bottom view, and (c) is a side view. Unlike the first embodiment, the rear plate 81 of the housing 80 of the optical receiver 2 is formed along the vertical direction (non-tilted), and the extra length processing unit 90 is attached to the rear plate 81. ing. The surplus length processing unit 90 winds up and accommodates the surplus length portion of the optical cable C2 connected to the optical receiver 2, and corresponds to surplus length processing means in the claims.

  11 is an exploded perspective view showing a state where the extra length processing unit is removed from the optical receiver, FIG. 12 is a diagram showing the extra length processing unit, (a) is a rear view, (b) is a plan view, FIG. 13C is a side view, FIG. 13D is a front view, and FIG. 13 is a perspective view of the surplus length processing unit viewed from the front side. The surplus length processing unit 90 is configured by integrally including a disk-shaped base plate 91 and a winding unit 92.

  The base plate 91 is configured to have a smaller outer diameter than the rear plate 81 of the optical receiver 2, and when attached to the rear plate 81, an extra length is provided in the rear projection space of the rear plate 81. The processing unit 90 is substantially accommodated, and the extra length processing unit 90 does not inadvertently protrude vertically and horizontally.

  The winding portion 92 is formed integrally with the rear surface of the base plate 91, has an annular shape, and is formed so as to rise rearward from a position slightly closer to the inner side than the periphery of the base plate 91. The extra length portion of the optical cable C2 is wound around the outer periphery of the winding portion 92 an arbitrary number of times, so that the extra length portion can be accommodated.

  The winding portion 92 is provided with four pressing protrusions 92a and a pair of cable pressing members 93. The pressing protrusion 92a and the cable pressing member 93 block at least part of the insertion path of the optical cable C2 with respect to the winding part 92 (the path through which the optical cable C2 passes when the optical cable C2 is wound around the winding part 92). This corresponds to the cable presser in the claims.

  The pressing protrusion 92 a is formed on the peripheral surface of the winding portion 92 so as to protrude in the vertical and horizontal directions. The pressing projection 92a prevents the optical cable C2 wound around the winding portion 92 from dropping backward. Each cable retainer 93 has an upward U-shape or a downward U-shape, is raised from the vicinity of the periphery of the base plate 91 to the rear of the winding portion 92, and is further up, down, left, and right of the winding portion 92. It is extended to the approximate center position. The pair of cable pressers 93 prevent the optical cable C2 wound around the winding portion 92 from spreading vertically and horizontally by self-repulsive force, and prevents the optical cable C2 from falling off the winding portion 92. Yes.

  Here, the cable presser 93 is formed of an elastically deformable material, for example, a synthetic resin such as an elastomer or polypropylene, and the cable presser 93 is rolled up by pushing it up and down against its elastic force. The extra length of the optical cable C2 can be wound around the portion 92. Further, by releasing the cable presser 93 after the end of the winding operation, the cable presser 93 is self-restored by the elastic force and returns to the illustrated position, thereby preventing the optical cable C2 from dropping off. Although the specific method of forming the cable retainer 93 is arbitrary, particularly in the second embodiment, the cable retainer 93 is formed by punching a part of the base plate 91 and raising it to the rear side. The cable retainer 93 can be easily created. In addition, various structures can be employed as specific structures of the pressing protrusion 92a and the cable pressing member 93, and for example, they are used for the extra length processing unit 90 in a known outdoor optical receiver. Can be adopted.

  The surplus length processing unit 90 configured in this way can be attached to the housing 80 with an arbitrary structure, and can be fixed with screws or locked, for example. Here, as shown in FIGS. 11 and 13, a pair of left and right columnar fixing legs 94 (corresponding to protrusions in the claims) are integrally formed on the front surface of the base plate 91 of the extra length processing unit 90. By inserting the fixing legs 94 into a pair of left and right fixing holes 81a (corresponding to the recesses in the claims) detachably provided in the rear plate 81 of the housing 80, extra length processing is performed. The part 90 can be detachably attached to the housing 80. Thus, by making the extra length processing unit 90 detachable from the housing 80, the extra length processing unit 90 is removed when the extra length portion of the optical cable C2 is wound up, and is taken up near the operator's hand. It is possible to work. Further, since the extra length processing unit 90 can be attached simply by inserting the fixing leg 94 into the fixing hole 81a, the extra length processing unit 90 is used with a tool or the like after the wrapping operation of the optical cable C2. It can be easily fixed to the housing 80 without any problems.

(Effect of Embodiment 2)
Thus, according to the second embodiment, in addition to the same effects as those of the first embodiment, the surplus length processing unit 90 is provided, so that the surplus length portion of the optical cable C2 can be accommodated. Further, the pressing projection 92 a and the cable pressing 93 can prevent the optical cable C <b> 2 from dropping from the winding portion 92. Further, since the extra length processing unit 90 is detachable from the housing 80, the extra length processing unit 90 is removed when the extra length portion of the optical cable C2 is wound, and the winding operation is performed near the operator's hand. Making it possible. Further, since the extra length processing unit 90 can be attached simply by inserting the fixing leg 94 into the fixing hole 81a, the extra length processing unit 90 is used with a tool or the like after the wrapping operation of the optical cable C2. It can be easily fixed to the housing 80 without any problems.

[Embodiment 3]
Next, specific contents of the third embodiment according to the present invention will be described in detail. In the third embodiment, the optical receiver and the power adapter are unitized so that they can be embedded and fixed together. However, unless otherwise specified, the configuration is the same as that of the second embodiment, and the same components as those of the second embodiment are denoted by the same reference numerals as those used in the second embodiment, if necessary. To do.

  FIG. 14 is an overall perspective view showing the optical receiving unit together with the mounting device, FIG. 15 is a view showing the optical receiving unit together with the mounting device, (a) is a front view, (b) is a side view, and (c) is a bottom view. FIG. 16 and FIG. 16 are rear views showing the optical receiving unit together with the mounting device. The optical receiver unit 3 includes an optical receiver 3A and a power adapter 3B.

  Of these, the optical receiver 3A is basically configured in the same manner as the optical receiver 2 of the second embodiment, but differs from the second embodiment in that the power terminal 30 is disposed on the rear surface. Specifically, the power supply terminal 30 is provided facing downward in a position in the bottom surface of the casing 100 of the power supply terminal 30 that is accommodated on the non-exposed side of the wall surface. Thus, by providing the power supply terminal 30 on the rear surface of the optical receiver 3A, the power cable C1 can be connected on the non-exposed side of the wall surface, and the appearance of the light receiving unit 3 on the indoor side can be improved. .

  The power adapter 3B is for supplying power to the optical receiver 3A, and corresponds to the power supply means in the claims. FIGS. 17A and 17B are views showing a power adapter, in which FIG. 17A is a front view, FIG. 17B is a side view, FIG. 17C is a bottom view, and FIG. The power adapter 3B accommodates a transformer section (not shown) inside the housing 110, and a power cable C1 is integrally provided on the rear surface of the housing 110, and two sets of power terminals 111 and 112 are provided on the rear surface. It is configured. The transformer unit converts electric power supplied via the power supply terminal 111 into a voltage that conforms to the specifications of the optical receiver 3A, and includes a transformer, for example.

  The power cable C1 is a power line, is formed to a length that can be connected to the power terminal 30 of the optical receiver 3A, and is detachably connected to the optical receiver 3A. The power terminals 111 and 112 are connection terminals for connecting a power cable (not shown) to the power adapter 3B, and are configured as screw terminals for fixing the core wire of the power cable with screws. Specifically, a power cable drawn from a power distribution board (not shown) or the like is connected to the power terminal 111, and a power cable leading to an arbitrary external device is connected to the power terminal 112.

  The power adapter 3B configured as described above is used as follows. That is, power from a power cable drawn from a power distribution board (not shown) is supplied to the power adapter 3B via the power terminal 111. This electric power is converted into a predetermined voltage via a transformer (not shown), and then supplied to the power cable C1 and the power terminal 111. And this optical receiver 3A can be driven by supplying this electric power to the optical receiver 3A via the power cable C1. Further, by supplying this power to the external device via the power terminal 112, the power adapter 3B can be used as a power relay means for the external device. In particular, in the third embodiment, since the power cable C1 and the power terminals 111 and 112 are provided on the rear surface of the power adapter 3B, the power cable C1 and the power terminals 111 and 112 are not exposed to the indoor space. The safety of the user can be enhanced, and the appearance of the light receiving unit 3 on the indoor side can be improved.

(Mounting structure of the optical receiving unit 3)
Next, the attachment structure with respect to the wall surface of the optical receiving unit 3 configured as described above will be described. FIG. 18 is an exploded perspective view of the optical receiving unit and its mounting fixture. Schematically, the switch box 120 and the switch box cover 121 are fixed to the non-exposed side of the wall surface, and the rear portions of the optical receiver 3A and the power adapter 3B are accommodated in the switch box 120. Further, a part of the optical receiver 3A is exposed on the exposed side of the wall surface, and a decorative plate base 122 and a decorative plate 123 are fixed to the front of the optical receiver 3A.

  The switch box 120 is formed in a hollow rectangular shape with an open front, and has an accommodating space portion that can receive the rear portions of the optical receiver 3A and the power adapter 3B. A wiring pipe (not shown) is connected to the upper surface of the switch box 120, and the optical cable C2 and the power cable can be drawn into the switch box 120 through the wiring pipe. The switch box cover 121 is a rectangular frame-shaped member that contacts the non-exposed surface of the wall surface, and the optical receiver 3A and the power adapter 3B can be taken in and out of the switch box 120 through the central opening 121a. . The upper and lower side pieces of the switch box cover 121 are provided with screw holes 121b (only the upper screw hole 121b is shown in FIG. 18), and the mounting screws 121c inserted into the screw holes 121b are connected to the switch box 120. The switch box cover 121 can be fixed to the switch box 120 by screwing into the screw hole 120a. In addition, screw holes 121d are provided above and below the opening 121a of the switch box cover 121, and the mounting screws 17f inserted through the screw holes 17d of the optical receiver 3A and the screw holes 110a of the power adapter 3B are connected to the switch box cover 121. By screwing into the screw hole 121d of the box cover 121, the optical receiver 3A and the power adapter 3B can be fixed to the switch box cover 121. By fixing the optical receiver 3A and the power adapter 3B to the switch box cover 121 in this way, a wall surface is sandwiched between the optical receiver 3A and the power adapter 3B and the upper, lower, left and right side pieces of the switch box cover 121. The optical receiver 3A and the power adapter 3B can be fixed to the wall surface.

  The decorative plate base 122 is a rectangular frame-shaped member that abuts against the exposed surface of the wall surface, and an opening 122a having a height and width substantially corresponding to the front of the optical receiver 3A and the power adapter 3B is formed at the center thereof. Has been. Screw holes 122b are formed in the upper and lower side pieces of the decorative plate base 122, and the decorative screw base 122c is screwed into the screw holes 17e of the optical receiver 3A. 122 can be fixed to the optical receiver 3A. The decorative plate 123 is a rectangular frame-shaped member that is detachably attached to the decorative plate base 122, and has an opening 123a having a height and width substantially corresponding to the front of the optical receiver 3A, and a power source. An opening 123b having a height and a width substantially corresponding to the front surface of the adapter 3B is formed. An engagement claw (not shown) is formed on the surface of the decorative plate 123 facing the decorative plate base 122. By engaging the engaging claw with the decorative plate base 122 so as to be detachable, the decorative plate 123 is provided. Can be detachably attached to the decorative plate base 122. In the state where the decorative plate base 122 and the decorative plate 123 are attached in this manner, the coaxial terminal 20 of the optical receiver 3A is placed indoors through the opening 122a of the decorative plate base 122 and the openings 123a and 123b of the decorative plate 123. Exposed to space. This completes the mounting of the optical receiving unit 3.

(Effect of Embodiment 3)
As described above, according to the third embodiment, in addition to the same effects as those of the first and second embodiments, the optical receiver 3A is juxtaposed as the optical receiver unit 3 together with the power adapter 3B. Electric power can be easily supplied with a simple configuration. In particular, since the power terminal and the power cable C1 are housed in the inner wall, the safety of the user can be improved and the appearance of the optical receiver 3A on the indoor side can be maintained. In addition, since the power supply terminal is provided to supply power to the external device, the power adapter 3B can be used as a power relay unit for the external device.

[Embodiment 4]
Next, the specific content of Embodiment 4 which concerns on this invention is demonstrated in detail. In the fourth embodiment, a power adapter having a structure different from that of the third embodiment is embedded and fixed integrally with the optical receiver. However, unless otherwise specified, the configuration is the same as in Embodiments 1 and 3, and the same components as in Embodiments 1 and 3 are used in Embodiments 1 and 3 as necessary. The same reference numerals are attached.

  FIG. 19 is a front view showing the optical receiving unit together with the mounting device. The optical receiving unit 4 includes an optical receiver 4A and a power adapter 4B. 4 A of optical receivers are comprised similarly to the optical receiver 1 of Embodiment 1, and are provided with the coaxial terminal 20 and the power supply terminal 30 in the front surface.

  The power adapter 4B is for supplying power to the optical receiver 4A, and corresponds to the power supply means in the claims. 20A and 20B are views showing a power adapter, in which FIG. 20A is a front view, FIG. 20B is a side view, FIG. 20C is a bottom view, and FIG. The power adapter 4B accommodates a transformer unit and a distribution unit (not shown) inside the housing 130, and is provided with two sets of power connectors 131 and 132 on the front surface of the housing 130, and is implemented on the rear surface of the housing 130. Two sets of power supply terminals 111 and 112 similar to the third embodiment are provided. The distribution unit distributes and supplies the power transformed by the transformation unit to the two power connectors 131 and 132.

  The power adapter 4B configured as described above is used as follows. That is, power from a power cable drawn from a power distribution board (not shown) is supplied to the power adapter 4B via the power terminal 111. This electric power is converted into a predetermined voltage via a transformer (not shown) and then supplied to the two sets of power connectors 131 and 132 and the power terminal 112 via a distributor (not shown). Then, power can be supplied to the optical receiver 4A by connecting one of the two sets of power connectors 131 and 132 and the power terminal 30 on the front surface of the optical receiver 4A with a power cable (not shown). . Further, by connecting an optional external device such as a TV receiver to the other of the power connectors 132, the light receiving unit 4 can be used in the same manner as a normal commercial power outlet. Alternatively, the power adapter 4B can be used as power relay means for the external device by supplying the power transformed by the transformer to the external device via the power terminal 112.

(Effect of Embodiment 4)
As described above, according to the fourth embodiment, in addition to the same effects as those of the first and third embodiments, the power supply to the optical receiver 4A can be easily provided by arranging the optical receiver 4A together with the power adapter 4B. It can be easily done with the configuration. In particular, since any external device such as a TV receiver can be connected to one of the power connectors 131 and 132, the light receiving unit 4 can be used in the same manner as a normal commercial power outlet, and the convenience of the user can be enhanced.

[III] Modifications to Each Embodiment While the embodiments of the present invention have been described above, the specific configuration and means of the present invention are within the scope of the technical idea of each invention described in the claims. It can be arbitrarily modified and improved within. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved.

(Relationship between each embodiment)
The configurations shown in the respective embodiments can be applied to other embodiments. For example, the optical receiver 1 according to the first embodiment may be used instead of the optical receiver 3A according to the third embodiment. Alternatively, by using the optical receiver 1 of the first embodiment instead of the power adapter 3B of the third embodiment, a plurality of optical receivers may be embedded in the installation surface with a common fixing means.

(About each terminal)
Unless otherwise specified, the coaxial terminal, the power supply terminal, or the optical connector can be provided at any position other than the position shown in each embodiment. For example, all of these terminals are exposed on the casing. It may be arranged side by side. Each terminal may be provided with a number other than the number shown in each embodiment. For example, a plurality of coaxial terminals and optical connectors may be received.

  The present invention can be applied to an optical receiver that receives an optical signal and converts it into an electrical signal, and is useful for effectively utilizing the installation space by embedding and fixing the optical receiver on a wall surface or the like.

(Appendix)
The present invention described in Appendix 1 includes an optical cable connecting means for connecting an optical cable, a signal line connecting means for connecting a signal line, and an optical signal input via the optical cable connecting means. An optical receiver configured to accommodate a photoelectric conversion means for outputting to the signal line connecting means in a housing, wherein at least a part of the housing is provided for installing the optical receiver. It is characterized by comprising fixing means for embedding and fixing to the installation surface.

  The present invention described in appendix 2 is the present invention described in appendix 1, wherein the signal line connecting means is provided on the exposed surface side of the casing, and the optical cable connecting means is provided on the non-exposed surface side of the casing. It is provided.

  The present invention described in appendix 3 is the present invention described in appendix 1 or 2, wherein the optical cable connecting means is disposed substantially downward in a state where the optical receiver is fixed to the installation surface via the fixing means. It is characterized by doing.

  The present invention described in appendix 4 is the present invention according to any one of appendices 1 to 3, wherein the housing contains a first circuit board and a second circuit board, and the optical cable connection The means includes an optical signal receiving element that receives an optical signal output from the optical cable, and the first circuit board and the second circuit board are arranged in a substantially orthogonal shape with respect to each other. The optical signal receiving element is disposed in a facing space formed between the surfaces.

  The present invention described in appendix 5 is characterized in that in the present invention described in appendix 1 or 2, power line connecting means for connecting a power line for supplying electric power to the photoelectric conversion means is provided.

  The present invention described in appendix 6 is characterized in that, in the present invention described in appendix 5, the power line connecting means is provided on the non-exposed surface side of the casing.

  The present invention described in appendix 7 is characterized in that in the present invention described in any one of appendices 1 to 6, an extra length processing means for winding up the extra length portion of the optical cable is provided.

  The present invention described in appendix 8 is characterized in that, in the present invention described in appendix 7, the surplus length processing means is provided on the exposed surface side of the installation surface.

  The present invention described in appendix 9 is the present invention described in appendix 8, wherein the surplus length processing means includes a winding portion capable of winding the extra length portion of the optical cable, and an insertion path of the optical cable with respect to the winding portion. And a cable presser that can be elastically deformed.

  In the present invention described in appendix 10, in the present invention described in appendix 8 or 9, a surface of the surplus length processing unit facing the housing is provided with a projecting portion projecting toward the housing, The casing is provided with a recess for removably inserting the protruding portion.

  The present invention described in Supplementary Note 11 is characterized in that, in the present invention described in any one of Supplementary Notes 1 to 10, power supply display means for performing display related to a power supply state to the optical receiver on the exposed surface of the housing. It is provided.

  The present invention described in appendix 12 is the optical signal according to the present invention described in any one of appendices 1 to 11, wherein the optical signal for displaying the input state of the optical signal to the optical receiver is displayed on the exposed surface of the housing. An input display means is provided.

  The present invention described in appendix 13 includes an optical cable connection means for connecting an optical cable, a signal line connection means for connecting a signal line, and an optical signal input via the optical cable connection means converted into an electrical signal. And an optical receiver configured to house a photoelectric conversion means for outputting to the signal line connecting means in a housing, a power supply means capable of supplying power to the photoelectric conversion means, and the optical receiver. And fixing means for embedding and fixing at least part of the power supply means and an installation surface for installing the optical receiver and the power supply means.

  The present invention described in appendix 14 is the power line according to the present invention described in appendix 13, wherein a power line for supplying power to the photoelectric conversion means is connected to a non-exposed surface side of the casing of the optical receiver. Connection means is provided, and second power line connection means for supplying the power to the power line connection means of the optical receiver via the power supply line is provided on the non-exposed surface side of the casing of the power supply means. It is characterized by that.

  The present invention described in appendix 15 is the power line connection according to the present invention described in appendix 13, wherein a power line for supplying power to the photoelectric conversion means is connected to the exposed surface side of the housing of the optical receiver. And a second power line connecting means for supplying the power to the power line connecting means of the optical receiver via the power line on the exposed surface side of the casing of the power means. It is characterized by.

  The present invention described in appendix 16 is characterized in that, in the present invention described in appendix 15, the second power line connecting means is configured as a commercial power outlet.

  According to the invention according to the supplementary note, the optical receiver can be embedded and fixed in various installation surfaces such as a wall surface, and the portion of the optical receiver that does not require user access can be accommodated in the back of the installation surface. Even when an optical receiver is installed indoors, it is no longer necessary to secure the installation space for the optical receiver indoors.In addition, the optical receiver may interfere with the user or be subject to mischief such as children. Can be prevented, or the aesthetics of the room can be impaired.

  Further, according to the invention according to the supplementary note, since the signal line connecting means is provided on the exposed surface side of the housing and the optical cable connecting means is provided on the non-exposed surface side of the housing, the optical cable is less required to be detached after connection. The signal line that can be connected at a position that is not touched by the user's eyes and that is highly necessary for the user to attach and detach can be connected at a position that is easily accessible by the user.

  Further, according to the invention according to the supplementary note, since the optical cable connecting means is disposed substantially downward, dust or the like can be prevented from accumulating on the optical cable connecting means.

  Further, according to the invention according to the supplementary note, noise can be reduced by directly inserting the optical signal receiving element into the first circuit board or the second circuit board, and the optical signal receiving element is accommodated in the facing space. Thus, the housing can be reduced in size.

  Further, according to the invention according to the supplementary note, it is possible to easily supply power to the optical receiver by connecting the power line to the power line connecting means.

  Further, according to the invention according to the supplementary note, since the power line connecting means is provided on the non-exposed surface side of the housing, the power line connecting means may be a target of mischief such as a child or impair the indoor aesthetics. Can be prevented.

  Further, according to the invention according to the supplementary note, since the surplus length portion of the optical cable can be accommodated in the surplus length processing means, it is possible to concisely summarize the optical cable inside the installation surface.

  Further, according to the invention according to the supplementary note, since the surplus length processing means is provided on the exposed surface side of the installation surface, the surplus length processing means and the optical cable wound around the surplus length processing means become a target of mischief such as children, or , Can prevent deteriorating the aesthetics of the room.

  Moreover, according to the invention which concerns on addition, it can prevent that an optical cable falls from a winding-up part by interrupting at least one part of the insertion path | route of an optical cable by cable pressing.

  Further, according to the invention according to the supplementary note, since the extra length processing means is detachable from the housing, the extra length processing means is removed when the extra length portion of the optical cable is wound, and is wound near the operator's hand. Can be taken.

  Further, according to the invention according to the supplementary note, since the power display unit is provided on the exposed surface of the housing of the optical receiver, the user can easily check the power supply state to the optical receiver.

  Further, according to the invention according to the supplementary note, since the light input indicator lamp is provided on the exposed surface of the housing of the optical receiver, the user can easily confirm the input state of the optical signal to the optical receiver.

  Further, according to the invention according to the supplementary note, by providing the optical receiver together with the power supply unit as an optical receiving unit, it is possible to easily supply power to the optical receiver with a simple configuration.

  Further, according to the invention according to the supplementary note, since the power connection between the optical receiver and the power supply means can be performed on the non-exposed surface side, the connection portion may be a target of mischief such as a child or the indoor aesthetics. Can be prevented.

  Further, according to the invention according to the supplementary note, since the power connection between the optical receiver and the power supply unit can be performed on the exposed surface side, the user can easily supply power to the optical receiver.

  According to the invention according to the supplementary note, since the second power line connecting means is configured as a commercial power outlet, the optical receiving unit can be used in the same manner as a normal commercial power outlet, and the convenience for the user can be enhanced.

1, 2, 3A, 4A Optical receiver 3, 4 Optical receiver unit 3B, 4B Power adapter 10, 80, 100, 110, 130 Case 11 Case body 11a Mounting groove 11b Recess 12, 81 Rear plate 13 Front cover 13b -13e Hole 13a Locking claw 14 Power lamp 15 Light input lamp 16 Connector hook 17 Mounting adapter 17a Locking stay 17b Fixing plate 17c Locking claw 17d, 17e, 121b, 71d, 72b, 120a, 121b, 121d, 122b Screw Hole 17f, 71c, 121c, 122c Mounting screw 20 Coaxial terminal 30, 111, 112 Power supply terminal 40 Optical connector 41 Photodiode 50 Photoelectric conversion circuit 60 Circuit board 61 First circuit board 62 Second circuit board 63 Opposite space 70, 120 switch box 71, 121 Switch box cover 71a, 72a, 73a, 121a, 123a, 123b Opening 72, 122 Decorative plate base 73, 123 Decorative plate 81a Fixing hole 90 Extra length processing part 91 Base plate 92 Winding part 92a Holding protrusion 93 Cable Presser 94 Fixed leg C1 Power cable C1a Power connector C2 Optical cable C3 Coaxial cable C3a Coaxial connector

Claims (2)

Optical cable connection means for connecting an optical cable, signal line connection means for connecting a signal line, and an optical signal input via the optical cable connection means is converted into an electrical signal and output to the signal line connection means An optical receiver configured to house the photoelectric conversion means in a housing,
A fixing means for embedding and fixing at least a part of the housing in an installation surface for installing the optical receiver;
The housing contains a first circuit board and a second circuit board formed in a planar shape smaller than the planar shape of the first circuit board ,
The first circuit board is disposed so as to be substantially parallel to the exposed surface side of the housing,
The second circuit board is disposed so as to be substantially orthogonal to the first circuit board and to protrude from the first circuit board toward the non-exposed surface side of the housing,
An optical signal receiving element for receiving an optical signal output from the optical cable, wherein the optical signal receiving element is longer than the length of the second circuit board in the protruding direction, and is connected to the optical cable connecting means,
The optical signal receiving element is disposed between adjacent surfaces of the first circuit board and the second circuit board so that the longitudinal direction of the optical signal receiving element is substantially parallel to the first circuit board. Placed in the formed opposing space,
The optical circuit connecting means is connected to the second circuit board via the optical signal receiving element so that the connection port of the optical cable connecting means is exposed to the outside from a lower surface of a part of the non-exposed surface side of the housing. Connected to the
Embedded optical receiver characterized by. A power line connecting means for connecting a power line for supplying power to the optical receiver is provided on the first circuit board,
The power line connecting means is disposed at a position where the connection port of the power line connecting means is exposed to the outside from the exposed surface side of the housing;
The embedded optical receiver according to claim 1.

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