JP2012008287A - Fixing structure of electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing structure of electronic apparatuses capable of surely fixing various types of electronic apparatuses such as an optical receiver on an installation surface with a simple structure.SOLUTION: The fixing structure for fixing an optical receiver 1 on an installation surface includes a stand 2 for fixing the optical receiver 1 on the installation surface, and the optical receiver 1 is inserted between a pair of fixing plates of the stand 2 to be clamped by the pair of fixing plates. The contact surfaces of the fixing plates with the optical receiver 1 include locking projections projecting towards the optical receiver 1, the contact surfaces of the optical receiver 1 with the fixing plates include a first projection 15 and a second projection, the locking projections, and the first projection 15 and the second projection are mutually interfered so as to regulate the position in the inserting direction and the position in the sliding direction of the optical receiver 1 with respect to the stand 2.

Description

  The present invention relates to a fixing structure for fixing an electronic device to an installation surface.

  Currently, FTTH (Fiber To The Home), which is a data communication service for homes using an optical cable, is becoming popular in ordinary homes. In this FTTH, a video signal or a communication signal transmitted via an optical cable laid outdoors is transmitted to a TV receiver or an information communication device via an optical receiver installed on an outdoor wall such as a general house. Is transmitted.

  FIG. 12 is a front view of the conventional optical receiver with the cover portion closed, and FIG. 13 is a perspective view of the conventional optical receiver with the cover portion open. The optical receiver 100 is configured by housing a photoelectric conversion unit 102 and a tray 103 for housing an optical fiber (not shown) in a casing 101. The tray 103 is provided with a cable fixing unit 104 and a surplus length processing unit 105. In the optical receiver 100 configured as described above, the outer cover of an optical cable (not shown) drawn from the outside is fixed by the cable fixing unit 104, and only the optical fiber is drawn. The optical fiber drawn out in this way is connected to another optical fiber via a mechanical splicer (not shown), and is connected to the photoelectric conversion unit 102 via an optical connector (not shown). The extra length portions of these optical fibers are accommodated by being wound around the extra length processing unit 105 (see, for example, Patent Document 1 and Patent Document 2).

  Further, as shown in FIG. 12, a mounting portion 106 is provided on the upper portion of the housing 101, and an optical reception is performed by screwing a screw (not shown) inserted through the mounting portion 106 into an installation surface such as a wall surface. The machine 100 can be fixed to the installation surface.

Japanese Patent Application Laid-Open No. 2004-354884 Japanese Patent Application Laid-Open No. 2004-354885

  Here, the optical receiver 100 is generally fixed to an outdoor wall surface of a general house or the like, but with the recent diversification of usage forms, there is an increasing need to install it indoors. And when attaching the optical receiver 100 indoors, screwing is unnecessary by fixing the optical receiver 100 without using screwing, instead of the screwing structure using the attaching part 106 as in the past. There is a need to make it.

  The present invention has been made in view of the above, and provides an electronic device fixing structure capable of reliably fixing various electronic devices such as an optical receiver to an installation surface with a simple structure. Objective.

  In order to solve the above-described problems and achieve the object, the present invention according to claim 1 is a fixing structure for fixing an electronic device to an installation surface, and is provided between the electronic device and the installation surface. A stand for fixing the electronic device to the installation surface, a pair of fixing plates provided on the stand, and the electronic device being inserted between the pair of fixing plates; Thus, the electronic device can be sandwiched between the pair of fixing plates, and a fixing plate side protrusion protruding toward the electronic device is provided on the contact surface of the fixing plate with the electronic device, and the electronic device Electrons that protrude toward the fixed plate are in contact with the fixed plate in the device, and are in contact with the contact surface of the fixed plate on which the fixed plate side protrusion is formed. A device side protrusion is provided, and the fixing plate side protrusion and the electronic device By causing the protrusions to interfere with each other, the position of the electronic device relative to the stand, the position in the insertion direction of the electronic device relative to the pair of fixing plates, and the direction orthogonal to the insertion direction Thus, the position in the sliding direction parallel to the fixed plate can be regulated.

  According to a second aspect of the present invention, in the first aspect of the present invention, the fixing plate side protrusions are formed as locking protrusions provided at a plurality of positions along the sliding direction, and the electronic The device-side protrusions are linear protrusions along the slide direction and are arranged in parallel at a plurality of positions in the insertion direction, and the first protrusions are arranged at an interval. The electronic device with respect to the stand is formed as a second protrusion, and any one of the locking protrusions is detachably locked to any one of the plurality of first protrusions. The position in the insertion direction can be restricted, and any one of the locking protrusions is brought into contact with the first protrusion and the second protrusion, whereby the electrons with respect to the stand The position of the device in the sliding direction can be regulated.

  According to a third aspect of the present invention, in the second aspect of the present invention, the locking protrusion includes a sloping portion extending obliquely from the fixing plate toward the electronic device, and the sloping protrusion. A contact portion that is provided at an end portion of the electronic device on the electronic device side and contacts the contact surface of the electronic device, and the contact portion is provided on the contact surface of the electronic device. It was provided in parallel.

  A fourth aspect of the present invention is the optical receiver according to any one of the first to third aspects, wherein the electronic device is connected to an optical communication network and receives an optical signal.

  According to the first aspect of the present invention, by causing the fixed plate side protrusion and the electronic device side protrusion to interfere with each other, the position in the insertion direction of the electronic device between the pair of fixed plates, Since the position in the sliding direction that is orthogonal to the insertion direction and parallel to the fixed plate can be regulated, the insertion direction of the electronic device and the position in the sliding direction can be fixed via a stand, and the electronic device It can be easily fixed without screwing as in the prior art.

  According to the second aspect of the present invention, the electronic device with respect to the stand can be detachably locked to any one of the plurality of first protrusions. The position in the insertion direction can be regulated, and further, any one of the locking protrusions is brought into contact with the first protrusion and the second protrusion, so that the electronic device in the slide direction with respect to the stand Since the position can be regulated, the position in the insertion direction and the sliding direction of the electronic device can be fixed using only the first protrusion, the second protrusion, and the locking protrusion, and the structure is simple. Electronic equipment can be fixed.

  According to the third aspect of the present invention, the locking projection protrudes obliquely from the fixing plate toward the electronic device and is in contact with the contact surface of the electronic device in parallel. Since the contact portion is provided, the contact portion can be protruded toward the electronic device at the inclined portion, and the contact portion is contacted in parallel with the contact surface of the electronic device. The part can be brought into contact with the front surface of the electronic device in the planar area, and the electronic device can be stably fixed.

  According to the fourth aspect of the present invention, when the optical receiver is fixed via the stand, the same effect as that of the first aspect of the present invention can be obtained.

It is a front view of the optical receiver fixed with the stand which concerns on embodiment of this invention. It is a rear view of the optical receiver fixed by the stand. It is a figure which shows an optical receiver, (a) is a front view, (b) is a bottom view, (c) is a side view. It is a rear view of an optical receiver. It is a perspective view of a stand. It is a side view of a stand. It is a top view of a stand. It is AA arrow sectional drawing. FIG. 9 is an enlarged view of the vicinity of the locking protrusion in FIG. 8. FIG. 8 is an enlarged view around a locking protrusion in the cross-sectional view taken along the line B-B in FIG. 7. It is an enlarged view of the stand periphery of FIG. It is a front view of the conventional optical receiver in the state which closed the cover part. It is a perspective view of the conventional optical receiver in the state where the cover part was opened.

  Exemplary embodiments of a fixing structure for an electronic device according to the present invention will be described below in detail with reference to the accompanying drawings. [I] First, the basic concept of the embodiment will be described, then [II] the specific contents of the embodiment will be described, and [III] Finally, modifications to the embodiment will be described. However, the present invention is not limited to the embodiments.

[I] Basic Concept of Embodiment First, the basic concept of the embodiment will be described. This embodiment relates to a fixing structure for fixing an electronic device to an installation surface.

  Hereinafter, the electronic device will be described as an optical receiver (optical line termination unit: ONU: Optical Network Unit). However, the target to which this fixed structure is applied is not limited to the optical receiver, but an optical line storage box. It can be applied to any electronic device that needs to be fixed to the installation surface, such as an optical converter or a notification broadcast receiver. The installation surface corresponds to an arbitrary surface on which an electronic device can be installed via a stand, and is preferably a flat surface, for example, a floor surface, an upper surface or an inner surface of a television board, or a desk surface.

  One of the features of this fixing structure is that it is interposed between the electronic device and the installation surface, and has a stand for fixing the electronic device to the installation surface, and the stand has a pair of fixing plates. The electronic device can be sandwiched between the pair of fixed plates by inserting the electronic device between the pair of fixed plates, and the contact surface of the fixed plate with the electronic device is attached to the electronic device. A fixed plate-side protrusion that protrudes toward the fixed plate in the electronic device, the contact surface that contacts the contact surface of the fixed plate on which the fixed plate-side protrusion is formed The electronic device side protrusion that protrudes toward the fixed plate is provided, and the position of the electronic device relative to the stand is obtained by causing the fixed plate side protrusion and the electronic device side protrusion to interfere with each other. Position in the insertion direction of the electronic device relative to each other between the fixed plates There a position in parallel with the sliding direction of the fixing plate in a direction perpendicular to the insertion direction, to a point which enables regulation.

[II] Specific Contents of Embodiment Specific contents of the present embodiment will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a front view of an optical receiver fixed by a stand, and FIG. 2 is a rear view of the optical receiver fixed by a stand. As shown in these drawings, the optical receiver 1 is detachably held by the stand 2, and the stand 2 is placed on the installation surface (not shown) with the optical receiver 1 being held in this way. Thus, the optical receiver 1 is fixed to the installation surface via the stand 2. In the following description, the Z direction in FIG. 1 is the insertion direction, and the X direction in FIG. 1 is the slide direction. The direction orthogonal to the insertion direction and the sliding direction is referred to as the thickness direction.

(Basic configuration of optical receiver)
Here, the basic configuration of the optical receiver 1 to be fixed will be described. 3A and 3B are diagrams illustrating the optical receiver 1, where FIG. 3A is a front view, FIG. 3B is a bottom view, FIG. 3C is a side view, and FIG. 4 is a rear view of the optical receiver 1. As shown in FIGS. 3 and 4, the optical receiver 1 includes a housing 10, in which a photoelectric conversion unit, a power supply device, and a tray (all not shown) are detachable. It is housed and configured.

  The housing 10 is a structure of the optical receiver 1, and is formed by injection molding of resin, for example. The housing 10 includes a substantially box-shaped base portion 11 with one side open, and a cover portion 12 that substantially covers the base portion 11 from the open surface side. The cover portion 12 is a base portion. 11 is pivotally supported with respect to 11. In the state where the cover portion 12 is closed and the base portion 11 is substantially covered, a pair of lead-in ports 13 are formed at positions facing the base portion 11 and the cover portion 12, and an optical cable is connected via the lead-in port 13. The optical cable can be drawn out from the inside of the housing 10 to the outside. In addition, a connection terminal 14 of the photoelectric conversion unit is exposed to the outside of the housing 10 to the side of the lead-in port 13. A coaxial cable (not shown) is connected to the connection terminal 14, and an electric signal photoelectrically converted by the photoelectric conversion unit. (RF signal) can be output to a TV receiver or the like via a coaxial cable. In addition, this housing | casing 10 can be comprised similarly to patent document 1 except the structure which mentions specially.

  The photoelectric conversion unit is a photoelectric conversion means for converting an optical signal into an electrical signal, and an optical signal input from an optical fiber connected to a connection terminal (not shown) is photoelectrically converted by an internal photoelectric conversion circuit. It outputs to a coaxial cable via a pair of connecting terminal 14 provided in the lower part. In addition, this photoelectric conversion unit can be comprised similarly to patent document 1 except the structure which mentions specially. The power supply device supplies power to the optical receiver 1, converts AC power acquired from a commercial power supply via a power cord (not shown) into DC power, and supplies it to the photoelectric conversion unit. The tray is a storage means for organizing and storing optical cables and optical fibers.

  Here, as shown in FIG. 4, a first protrusion 15 and a second protrusion 16 are formed on the back surface of the optical receiver 1 (the outer surface of the base portion 11). The first protrusion 15 and the second protrusion 16 are electronic apparatus side protrusions for fixing the optical receiver 1 to the stand 2. Of the side surfaces of the optical receiver 1, a later-described fixing plate of the stand 2. 21 is provided on either one of the contact surfaces with 21 (here, the rear surface of the front and back surfaces of the optical receiver 1 which is the contact surface with the fixed plate 21).

  The first protrusions 15 are linear protrusions along the slide direction, and are arranged in parallel at a plurality of positions in the insertion direction. Each first protrusion 15 is formed so as to extend from an end in the sliding direction of the back surface of the optical receiver 1 (right end portion in FIG. 4) to a position near the center in the sliding direction of the back surface of the optical receiver 1. The vertical section has a solid square shape, and is formed as a stepped portion protruding outward from the back surface of the optical receiver 1. These first protrusions 15 are arranged at a predetermined interval from each other.

  The second protrusion 16 is arranged at a distance from the first protrusion 15, is formed in a circular shape when viewed from the back surface, and protrudes outward from the back surface of the optical receiver 1. Is formed. In addition, although other protrusions are formed on the back surface of the optical receiver 1 in the same shape as the second protrusions 16, only the protrusions related to fixing of the optical receiver 1 are used here. Part 16 is referred to.

(Basic structure of the stand)
Next, the basic configuration of the stand 2 will be described. 5 is a perspective view of the stand 2, FIG. 6 is a side view of the stand 2, FIG. 7 is a plan view of the stand 2, and FIG. 8 is a cross-sectional view taken along line AA in FIG. The stand 2 is formed by resin injection molding or the like with a pair of fixed plates 21 and 22 provided on a base plate 20, and the optical receiver 1 is inserted between the pair of fixed plates 21 and 22. Thus, the optical receiver 1 can be held between the pair of fixing plates 21 and 22.

  The base plate 20 is a plate-like body having a substantially rectangular planar shape, the dimension in the thickness direction is slightly larger than the dimension in the thickness direction of the optical receiver 1, and the dimension in the slide direction is optical It is set to about 2/3 of the dimension of the receiver 1 in the sliding direction.

  Each of the fixing plates 21 and 22 is formed integrally with the base plate 20 along the end in the thickness direction of the base plate 20. As shown in FIG. 8, the fixed plate 21 is a hollow body including a contact plate 23 disposed on the inner side and a support plate 24 disposed on the outer side. The fixed plate 22 is a hollow body including a contact plate 25 disposed on the inner side and a support plate 26 disposed on the outer side. The contact plates 23 and 25 are arranged to be inclined by an angle α with respect to the vertical direction so as to open outward as they reach the upper ends thereof. The optical receiver 1 can be easily attached to and detached from.

  Here, a plurality of locking protrusions 30 to 32 are arranged on the contact plate 23 of one fixed plate 21 at intervals along the sliding direction. Each of the locking protrusions 30 to 32 is a fixed plate side protrusion for fixing the optical receiver 1 to the stand 2, and one of the contact surfaces of the fixed plate 21 with the optical receiver 1 (here, The contact plate 23 of the fixed plate 21 and the contact plate 25 of the fixed plate 22 are provided on the inner surface of the contact plate 23 of the fixed plate 21. Here, out of the plurality of locking projections 30 to 32, the two locking projections 30 and 32 at both ends in the sliding direction are formed in the same shape as each other, and the central portion in the sliding direction. The one locking projection 31 is formed in a slightly different shape from the locking projections 30 and 32.

  First, the two locking projections 30 and 32 at both ends in the sliding direction will be described. FIG. 9 is an enlarged view of the vicinity of the locking protrusion of FIG. As shown in FIG. 9, the locking protrusions 30 and 32 at both ends in the sliding direction are formed as an oblique portion 33 extending obliquely from the fixed plate 21 toward the optical receiver 1 and the oblique portion. 33 is provided at an end portion of the optical receiver 1 on the side of 33, and a contact portion 34 that contacts the back surface of the optical receiver 1. The inclined portion 33 is elastic because it is formed integrally with the fixed plate 21 with resin or the like, and elastically biases the abutting portion 34 against the back surface of the optical receiver 1. The contact portion 34 is provided so that the contact surface 34a with respect to the optical receiver 1 is parallel to the back surface of the optical receiver 1, so that the contact portion 34 is located in the planar area in the optical receiver. Since it contacts the back surface of the optical receiver 1, the optical receiver 1 is stably fixed. In addition, inclined surfaces 34b and 34c are formed on the upper and lower portions of the contact portion 34, respectively, so that the contact portion 34 can be smoothly engaged and disengaged with respect to the first protrusion 15 of the optical receiver 1. It has become.

  Next, the locking projection 31 at the center in the sliding direction will be described. FIG. 10 is an enlarged view of the vicinity of the locking protrusion in the cross-sectional view taken along the line BB in FIG. As shown in FIG. 10, the locking protrusion 31 at the center in the sliding direction includes an oblique portion 35 extending obliquely from the fixed plate 21 toward the optical receiver 1, and optical reception of the oblique portion 35. And an abutting portion 36 which is provided at the end of the optical receiver 1 and abuts against the back surface of the optical receiver 1. The inclined portion 35 is elastic because it is integrally formed on the stand 2 with resin or the like, and elastically biases the contact portion 36 against the back surface of the optical receiver 1. The contact portion 36 is provided so that the contact surface 36a with respect to the optical receiver 1 is parallel to the back surface of the optical receiver 1, and for this reason, the contact portion 36 is provided in the planar region. Since it contacts the back surface of the optical receiver 1, the optical receiver 1 is stably fixed. Here, the contact portion 36 of the locking protrusion 31 is formed so that the dimension in the insertion direction is longer than the contact portion 34 of the locking protrusions 30 and 32 (the reason will be described later). To do).

  A plurality of contact projections 37 are arranged on the contact plate 25 of the fixed plate 22. Each contact protrusion 37 is a fixed plate side protrusion for fixing the optical receiver 1 to the stand 2, and is one of the contact surfaces of the fixed plate 22 with the optical receiver 1 (here, fixed). Of the contact plate 23 of the plate 22 and the contact plate 25 of the fixed plate 22, it is provided on the inner surface of the contact plate 25 of the fixed plate 22. Each contact protrusion 37 is a linear protrusion along the insertion direction, and is arranged in parallel at a plurality of positions in the slide direction. Each abutting protrusion 37 is formed so as to extend from the upper end portion to the lower end portion of the abutting plate 25, has a vertical cross section of a solid square shape, and faces inward from the abutting plate 25. It is formed as a stepped part protruding. The contact protrusion 37 is provided such that the contact surface 37a with respect to the optical receiver 1 is parallel to the front surface of the optical receiver 1, and therefore, the contact protrusion 37 is in a planar region. Since it contacts the front of the optical receiver 1, the optical receiver 1 is stably fixed.

(Details of optical receiver fixing structure with stand)
Next, the detail of the structure which fixes the optical receiver 1 with the stand 2 comprised in this way is demonstrated. FIG. 11 is an enlarged view around the stand 2 of FIG. In FIG. 11, for explanation, a part of the first protrusion 15 and the second protrusion 16 of the optical receiver 1 and the locking protrusions 30 to 32 of the stand 2 are transparently shown by dotted lines. Then, roughly, the first and second protrusions 15 and 16 and the locking protrusions 30 to 32 interfere with each other, thereby the position of the optical receiver 1 with respect to the stand 2 and the pair. The position in the insertion direction of the optical receiver 1 relative to the fixed plates 21 and 22 and the position in the slide direction that is orthogonal to the insertion direction and parallel to the fixed plates 21 and 22 can be regulated.

  First, a structure for restricting the position of the optical receiver 1 in the insertion direction will be described. As shown in FIG. 11, among the locking protrusions 30 to 32 of the stand 2, the locking protrusion 30 on the right side in the drawing is detachably engaged with the first protrusion 15 on the back surface of the optical receiver 1. It has stopped. Specifically, the abutment portion 34 of the locking projection 30 has a height (H in FIG. 11) that fits in the interval between the plurality of first projections 15 and is within the plurality of first projections 15. These are formed at positions corresponding to each other between the pair of first protrusions 15.

  Therefore, as shown in FIGS. 1 and 2, when the optical receiver 1 is inserted between the fixing plates 21 and 22 of the stand 2, the abutting portion 34 of the locking projection 30 is changed to the inclined portion 33. It is urged toward the back surface of the optical receiver 1 by the urging force, enters between the pair of first protrusions 15, and comes into contact with the back surface of the optical receiver 1. In particular, since the inclined surface 34 b is provided at the lower portion of the contact portion 34, the contact portion 34 smoothly enters between the pair of first protrusions 15. In this state, the contact portion 34 is locked to the pair of first protrusions 15, so that the optical receiver 1 is restricted from moving in the insertion direction. In this state, as described above, the contact portion 34 contacts the back surface of the optical receiver 1 in the planar region, so that the optical receiver 1 is stably fixed. Furthermore, on the side opposite to the contact portion 34 with the optical receiver 1 in between, the contact protrusion 37 of the fixing plate 22 contacts the front of the optical receiver 1 in the planar area, so that the optical receiver 1 is stabilized. Fixed.

  In this state, the optical receiver 1 is pulled upward in the insertion direction with a certain amount of force, so that the contact portion 34 gets over the first protrusion 15 against the urging force of the inclined portion 33, and makes contact. The locking of the first protrusion 15 by the portion 34 is released, and the optical receiver 1 can be removed from the stand 2. In particular, since the inclined surface 34 c is provided on the upper portion of the contact portion 34, the contact portion 34 gets over the first protrusion 15 smoothly.

  Next, a structure for restricting the position of the optical receiver 1 in the sliding direction will be described. As shown in FIG. 11, among the locking protrusions 30 to 32 of the stand 2, the locking protrusion 31 in the center in the drawing and the locking protrusion 32 on the left in the drawing are the first protrusion on the back of the optical receiver 1. It is arranged between the part 15 and the second protrusion 16.

  Specifically, the abutting portion 36 of the locking projection 31 in the center of the figure is formed higher than the abutting portion 34 of the locking projection 30 so as not to enter the interval between the plurality of first projections 15. It is formed in the shape and position which are located in the side of the some 1st protrusion 15. In this state, the contact portion 36 of the locking protrusion 31 contacts the first protrusion 15 from the side, so that the optical receiver 1 is in one of the sliding directions with respect to the stand 2 (left side in FIG. 11). Movement is restricted.

  Further, the abutting portion 34 of the locking projection 32 on the left side of the figure is formed in a shape and a position located on the side of the second projection 16. In this state, the abutment portion 34 of the locking projection 32 abuts against the second projection 16 from the side, so that the optical receiver 1 moves to the other side of the stand 2 in the sliding direction (right side in FIG. 11). Movement is restricted. For these reasons, the optical receiver 1 is restricted from moving in either of the sliding directions with respect to the stand 2.

(Effect of embodiment)
As described so far, according to the present embodiment, the first protrusion 15 and the second protrusion 16 and the locking protrusions 30 to 32 are caused to interfere with each other, whereby a pair of fixing plates 21, Since the position in the insertion direction of the optical receiver 1 relative to each other between 22 and the position in the sliding direction that is orthogonal to the insertion direction and parallel to the fixed plates 21 and 22 can be regulated, the optical receiver 1 The positions in the insertion direction and the sliding direction of the optical receiver 1 can be fixed via the stand 2, and the optical receiver 1 can be easily fixed without performing screwing work as in the prior art.

  Further, any one of the locking protrusions 30 to 32 is detachably locked to any one of the plurality of first protrusions 15, whereby the position of the optical receiver 1 in the insertion direction with respect to the stand 2. The optical receiver 1 for the stand 2 can be regulated by bringing any one of the locking protrusions 30 to 32 into contact with each other between the first protrusion 15 and the second protrusion 16. Since the position in the sliding direction of the optical receiver 1 can be regulated, the position of the optical receiver 1 in the insertion direction and the sliding direction is determined using only the first protrusion 15, the second protrusion 16, and the locking protrusions 30 to 32. The optical receiver 1 can be fixed with a simple structure.

The locking projections 30 to 32 are in parallel contact with the protruding portions 33 and 35 extending obliquely from the fixed plate 21 toward the optical receiver 1 and the contact surface of the optical receiver 1. Since the contact portions 34 and 36 are provided, the contact portions 34 and 36 can be protruded toward the optical receiver 1 by the inclined portions 33 and 35, and the contact portions 34 and 36 are provided in the optical receiver 1. By abutting in parallel with the abutting surface, the abutting portions 34 and 36 abut on the front surface of the optical receiver 1 in the planar region, and the optical receiver 1 can be stably fixed. .
Further, by arranging the base portion and the cover portion of the optical receiver 1 between them, it is possible to reliably restrict the cover portion of the optical receiver from being unnecessarily opened. In addition, by rotating the side of the optical receiver downward, attaching the stand 2 to the side of the receiver and installing it sideways, the cable pulling surface that becomes the bottom surface becomes the side surface outdoors. Thus, the cables are drawn out in the lateral direction, and the optical receiver can be stably installed indoors without being obstructed by the cables. Moreover, if the surface which pulls out cables is turned to the wall surface side, cables can be installed without conspicuous.

[III] Modifications to Embodiments While the embodiments of the present invention have been described above, specific configurations and means of the present invention are within the scope of the technical idea of each invention described in the claims. Any modification and improvement can be made. 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.

(Fixed plate side protrusion and electronic device side protrusion)
In the above embodiment, the fixed plate side protrusions are formed as the locking protrusions 30 to 32 and the electronic device side protrusions are formed as the first protrusion 15 and the second protrusion 16. And the electronic device side protrusion may be configured by other structures. For example, the locking protrusions 30 to 32 may be provided on the electronic device as electronic device side protrusions, and the first protrusion 15 and the second protrusion 16 may be provided on the fixed plate side as fixed plate side protrusions.

(Fixing direction and position)
The fixed direction and position of the optical receiver 1 with respect to the stand 2 may be other than the direction and position shown in the above embodiment. For example, in the example of FIGS. 1 and 2, the optical receiver 1 is fixed so that the connection terminal 14 is located below and the lead-in port 13 is located above, but the connection terminal 14 is located above, The inlet 13 may be positioned below. In this case, the positions of the first protrusion 15 and the second protrusion 16 on the back surface of the optical receiver 1 are set to the center line (insertion) of the optical receiver 1. The line passing through the central position in the direction and parallel to the sliding direction) may be arranged at the position opposite to the back surface of the optical receiver 1. However, since the coaxial cable connected to the connection terminal 14 is heavier than the optical cable drawn through the lead-in port 13, the optical receiver 1 is more stably fixed by positioning the connection terminal 14 downward. It becomes possible to do.

(Fixing structure other than stand)
In addition to the fixing structure using the stand 2, another fixing structure may be added. For example, as shown in FIGS. 1 and 2 and the like, the housing 10 of the optical receiver 1 according to the above embodiment is formed with a mounting portion similar to the conventional one, and a mounting screw inserted through the mounting portion. The optical receiver 1 can be directly fixed to the wall surface or the like without using the stand 2.

DESCRIPTION OF SYMBOLS 1,100 Optical receiver 2 Stand 10,101 Housing | casing 11 Base part 12 Cover part 13 Inlet 14 Connection terminal 15 1st protrusion 16 2nd protrusion 20 Base plate 21, 22 Fixing plate 23, 25 Contact plate 24 , 26 Support plate 30 to 32 Locking projection 33, 35 Sloped portion 34, 36 Contact portion 34a, 36a, 37a Contact surface 34b, 34c Inclined surface 37 Contact projection 102 Photoelectric conversion unit 103 Tray 104 Cable fixing Part 105 Extra length processing part 106 Mounting part

Claims (4)

A fixing structure for fixing an electronic device to an installation surface,
It is interposed between the electronic device and the installation surface, and includes a stand for fixing the electronic device to the installation surface,
The stand is provided with a pair of fixing plates, and the electronic device can be sandwiched between the pair of fixing plates by inserting the electronic device between the pair of fixing plates.
The contact surface of the fixed plate with the electronic device is provided with a fixed plate-side protruding portion that protrudes toward the electronic device,
The contact surface of the electronic device with the fixed plate, which is in contact with the contact surface of the fixed plate on which the fixed plate side protrusion is formed, projects toward the fixed plate. Providing a protrusion on the electronic device side
By causing the fixed plate side protrusion and the electronic device side protrusion to interfere with each other, the position of the electronic device relative to the stand and in the insertion direction of the electronic device between the pair of fixed plates The position and the position in the slide direction that is orthogonal to the insertion direction and parallel to the fixed plate can be regulated.
Electronic equipment fixing structure. The fixed plate side protrusion is formed as a locking protrusion provided at a plurality of positions along the sliding direction,
The electronic device side protrusion is a linear protrusion along the sliding direction and arranged in parallel at a plurality of positions in the insertion direction, and the first protrusion is spaced apart from the first protrusion. Formed as a second protrusion arranged,
The position of the electronic device in the insertion direction relative to the stand can be restricted by detachably locking any one of the locking protrusions to any one of the plurality of first protrusions. ,
By allowing any one of the locking protrusions to abut between the first protrusion and the second protrusion, the position of the electronic device in the sliding direction relative to the stand can be regulated. did,
The fixing structure of the electronic device according to claim 1. The locking protrusions are provided at an inclined portion extending obliquely from the fixed plate toward the electronic device, and at an end portion of the inclined portion on the electronic device side, and the electronic device A contact portion that contacts the contact surface of
The contact portion is provided in parallel to the contact surface of the electronic device,
The fixing structure of the electronic device according to claim 2. The electronic device is an optical receiver that is connected to an optical communication network and receives an optical signal.
The electronic device fixing structure according to any one of claims 1 to 3.

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