JP5894635B2 - Information communication unit - Google Patents

Description

  The present invention is an information communication unit including an antenna element for performing a wireless LAN such as Wi-Fi (registered trademark) or WiMAX (registered trademark), and in particular, a plurality of sensitivity units in the frequency band of the wireless LAN. The present invention relates to an information communication unit in which an antenna element is built in a casing, and the casing is configured to be installed in an embedded state in an outlet provided on an installation surface.

  In order to perform wireless LAN communication indoors or the like using a mobile communication terminal such as a laptop computer, a smartphone, or a tablet terminal, an information communication unit including an antenna element for wireless LAN is installed indoors. As a conventional information communication unit, an antenna element is built in the casing and can be installed on an installation surface such as a wall facing the room so as not to impair the design of the device and the appearance of the installation location. (For example, see Patent Documents 1 and 2).

The information communication unit described in Patent Document 1 is configured to be installed in a posture in which the entire casing is exposed to the outside with respect to the installation surface, and two antenna elements are provided to establish wireless LAN communication over a wide range. Built in the casing.
However, in this type of information communication unit, since the entire casing is exposed to the outside with respect to the installation surface, the amount of protrusion from the installation surface increases. Then, there is a problem that the aesthetics of the installation location is deteriorated and the walking is easily hindered, and the apparatus is easily damaged due to a collision with the pedestrian.

  Therefore, the information communication unit described in Patent Document 2 is configured such that a part of the casing can be installed in an embedded state in an outlet provided on the installation surface, instead of exposing the entire casing to the outside. Therefore, the amount of protrusion from the installation surface is minimized, and problems such as the above-described deterioration of aesthetics and obstruction of walking are avoided.

JP 2006-0505564 A JP 2013-157738 A

In the conventional information communication unit as described above, in order to establish stable and wide-ranging wireless LAN communication, not only a plurality of antenna elements are incorporated in the casing, but also the plurality of antenna elements are connected to each other by mutual interference of transmission and reception waves. It is necessary to arrange | position in a casing in the arrangement | positioning state which is fully suppressed. And when the whole casing is exposed to the outside from the installation surface as in the information communication unit described in Patent Document 1, there is almost no limit on the size and shape of the casing. A sufficient separation distance can be provided so that they can be arranged almost freely.
However, in the case where at least a part of the casing is embedded in an outlet provided on the installation surface as in the information communication unit described in Patent Document 2, a commercially available material in which the outlet is standardized is used. Therefore, there is a limit on the size and shape of the casing. And in the casing which has a restriction | limiting in such a magnitude | size, the some antenna element was not arrange | positioned.

  In view of this situation, the main problem of the present invention is that in an information communication unit including an antenna element for performing a wireless LAN, a plurality of antenna elements are disposed in a casing that can be installed in an outlet portion in an embedded state. The present invention provides a technique capable of realizing stable and wide-range wireless LAN communication by satisfactorily suppressing mutual interference between transmission and reception waves in the antenna element.

The first characteristic configuration of the present invention is:
Each antenna element of a plurality of antennas having sensitivity in the frequency band of the wireless LAN is built in the casing,
The casing is an information communication unit configured to be able to be installed in an embedded state in an outlet provided on an installation surface,
The casing has a display surface portion exposed to the outside, and an insertion portion that extends rearward from an outer edge portion of the display surface portion and is inserted into the outlet portion,
Each antenna element of the plurality of antennas is formed in a plate shape along the inner wall surface of the casing, and is separated from the inner wall surface of the insertion portion with the rear side internal space of the display surface portion therebetween. The point is that it is distributed in position.

According to this characteristic configuration, the casing can be embedded in the outlet portion in such a manner that the insertion portion of the casing is inserted into the outlet portion and the display surface portion connected to the front side is exposed indoors. And by employ | adopting such an installation form, the protrusion amount of the display surface part from an installation surface becomes small as much as possible, and while preventing the aesthetics of an installation location, it is suppressed that it becomes a hindrance to a walk.
Furthermore, when arranging a plurality of antenna elements in a casing in which the size and the like are limited by being able to be installed in an embedded state with respect to the outlet portion, the plurality of antenna elements are plate-shaped along the inner wall surface of the casing. Further, the inner wall surface of the insertion portion is distributed and arranged at a position spaced apart from the rear side internal space of the display surface portion. As a result, the separation distance between the respective antenna elements can be made sufficiently large, and the mutual interference of the transmission and reception waves in the respective antenna elements can be satisfactorily suppressed.

The second characteristic configuration of the present invention is:
The casing has a flange portion that extends laterally from a rear end portion of the insertion portion and is fixed on the back side of the installation surface,
At least one of the antenna elements of the plurality of antennas has a rear bent portion along a rear corner formed by the insertion portion and the flange portion.

  According to this characteristic configuration, the casing can be installed in the outlet portion in a state in which the flange portion connected to the rear side of the insertion portion of the casing is fixed to the back side of the outlet portion. Further, for the antenna element having the rear bent portion as described above, the rear bent portion is arranged in a posture along the rear corner portion formed on the rear side in the casing. In addition, the position is stabilized, and communication failure or damage due to a shift of the antenna element or the like is avoided.

The third characteristic configuration of the present invention is:
At least one of the antenna elements of each of the plurality of antennas extends forward along the inner wall surface of the insertion portion and has a front bent portion on the tip side in the extending direction, and the tip of the front bent portion The front region on the side is located in front of the portion corresponding to the installation surface.

  According to this characteristic configuration, for an antenna element that has the front bent portion as described above and whose front region on the front end side of the front bent portion is located in front of the portion corresponding to the installation surface, the front of the antenna element is provided. In the region, good transmission / reception waves are exchanged with the mobile communication terminal existing on the front side of the installation surface without being obstructed by the installation surface located on the rear side. As a result, more stable wireless LAN communication can be realized.

The fourth characteristic configuration of the present invention is:
At least one of the antenna elements of each of the plurality of antennas extends forward along the inner wall surface of the insertion portion, and is formed by the insertion portion and the display surface portion on the distal end side in the extending direction. And a front bent portion along the front corner, and a front region on the tip side of the front bent portion extends along the inner wall surface of the display surface portion.

According to this characteristic configuration, the antenna element having the front bent portion as described above is arranged in a posture along the front corner portion formed on the front side in the casing. The posture and position of the antenna element are stabilized, and communication failure or damage due to a shift of the antenna element is avoided.
Furthermore, for the antenna element that extends along the inner wall surface of the display surface portion where the front region on the front end side of the front bent portion that bends along the front corner portion is exposed to the outside, in the front region of the antenna element, Good transmission / reception waves are exchanged with the mobile communication terminal existing on the front side of the installation surface without being obstructed by the installation surface located on the side. As a result, more stable wireless LAN communication can be realized.

The fifth characteristic configuration of the present invention is:
A connection window into which the modular plug is inserted is formed on the display surface portion, and a modular adapter to which the modular plug is detachably connected is provided on the rear side of the connection window.

According to this feature configuration, a modular plug for a wired LAN or a telephone line can be connected to the modular adapter via a connection window, so that a wired LAN or a telephone line can be used in addition to the wireless LAN. .
Further, since such a modular adapter is arranged on the rear side of the display surface portion, a plurality of antenna elements distributed and arranged at positions spaced apart from each other on the rear side of the display surface portion are sandwiched between the modular adapters. Can be placed in a state. Then, the mutual interference of the transmission and reception waves in each antenna element is further suppressed satisfactorily.

The sixth characteristic configuration of the present invention is:
The display surface portion is formed in a strip shape extending along the surface of the outlet portion,
The insertion portion has a pair of planar side wall portions extending backward from each of both side edge portions of the display surface portion and facing each other;
The antenna elements of the plurality of antennas are distributed and arranged on the pair of planar side wall portions, respectively.

According to this characteristic configuration, by forming the display surface portion in the above-described band shape, the shape of the mounting window into which the insertion portion is inserted in the outlet portion is set as a standard rectangular shape formed in a commercially available outlet cover. The casing can be installed in the outlet portion in a state where an insertion portion extending backward from the outer extension portion of the display surface portion is inserted into the attachment window.
On the four inner wall surfaces in such an insertion part of the casing, there are a pair of planar side wall portions that extend backward from both side edge portions of the display surface portion and face each other. Then, with a rational configuration in which a plurality of antenna elements are distributed and arranged on each of the pair of planar side wall portions, the plurality of antenna elements are distributed and arranged at positions separated from each other with the inner space behind the display surface portion interposed therebetween. be able to.
In addition, since the pair of planar side wall portions are planes parallel to each other, the extending direction for determining directivity is set in each of the plurality of antenna elements arranged in a posture along the planar side wall portion. It becomes easy.

The seventh characteristic configuration of the present invention is:
The antenna elements of the plurality of antennas are distributed and arranged at diagonal positions across the rear side internal space of the display surface portion in each of the pair of planar side wall portions.

  According to this characteristic configuration, the plurality of antenna elements are arranged diagonally across the inner space on the rear side of the display surface portion as described above, so that the separation distance between the respective antenna elements is further increased, Mutual interference between transmission and reception waves in the respective antenna elements can be further suppressed.

Front view of outlet Front perspective view of information communication unit Rear perspective view of information communication unit Exploded perspective view of information communication unit The perspective view which shows the arrangement state of the antenna element in the inner wall face of the front side division | segmentation casing of an information communication unit The perspective view which shows the arrangement state of the antenna element in the inner wall face of the front side division | segmentation casing of an information communication unit The perspective view which shows the arrangement state of the antenna element in the inner wall face of the front side division | segmentation casing of the information communication unit of another embodiment. The perspective view which shows the arrangement state of the antenna element in the inner wall face of the front side division | segmentation casing of the information communication unit of another embodiment.

An embodiment of an information communication unit according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the outlet portion 1 is disposed on the front side of the installation surface W and the outlet box 2 installed on the back side of the rectangular (rectangular) installation hole Wa formed through the installation surface W. The outlet cover 3 covering the outer surface of the outlet portion 1 is fixed by a metal attachment frame (not shown) that abuts against the front surface of the installation surface W between them.

The outlet section 1 is equipped with four units including the information communication unit U1 of the present invention.
That is, at the center position in the left-right direction of the outlet portion 1, there is a connection window 15 for a wired LAN modular adapter 32 (see FIG. 4) into which a wired LAN modular jack is inserted, and a telephone line modular jack. An information communication unit U1 according to the present invention is provided which has a connection window 14 for a telephone line modular adapter 31 (see FIG. 4) to be inserted on the front side (that is, the indoor side).
In addition, a power outlet unit U2 having two upper and lower insertion ports is provided on one side portion (left side portion in FIG. 1) of the outlet portion 1 in the left-right direction. Two sets of coaxial connection units U3 for connecting a coaxial cable for a television antenna are provided (on the right side in FIG. 1). The two coaxial connection units U3 may both output terrestrial broadcast and satellite broadcast mixed waves, and one of them is a short wave branched into terrestrial broadcast and the other as satellite broadcast. May be output.

Although not shown, a power cable (not shown) and a telephone cable (an example of a communication line (communication cable)) wired in the back side space of the installation surface W are provided on the peripheral wall portion and the bottom wall portion of the outlet box 2. An insertion port into which the end of a coaxial cable (not shown), a WAN side communication cable (not shown) is inserted is formed. Among the cables introduced into the outlet box 2 through the insertion port, the power cable is connected to the power outlet unit U2, the telephone cable and the WAN side communication cable are connected to the information communication unit U1, and further coaxially. The cable is connected to the coaxial connection unit U3.
An attachment window 4 having a shape corresponding to each unit U1 to U3 is formed on the outlet cover 3, and the front portion of each unit U1 to U3 is attached through the attachment window 4 so as to be exposed to the outside room. .

As shown in FIG. 4 , the information communication unit U1 incorporates a plurality of antenna elements 51 having sensitivity in the frequency band of the wireless LAN in the casing 10, and the casing 10 is embedded in the outlet portion 1 provided on the installation surface. It is configured so that it can be installed.
As shown in FIGS. 2 to 4, the casing 10 includes a front divided casing 10 </ b> A and a rear divided casing 10 </ b> B that are detachably fitted to each other in the front-rear direction (front and back direction of the installation surface W) orthogonal to the installation surface W. And a synthetic resin casing divided into two.
Engaging claws 20 are integrally formed at a plurality of locations on the joining portion on the rear end side of the front divided casing 10A, and engaging claws on the front dividing casing 10A are provided at a plurality of locations on the joining portion on the front end side of the rear divided casing 10B. An engagement hole 21 with which 20 is engaged is formed.

  As shown in FIG. 2, the front divided casing 10 </ b> A includes a display surface portion 11 that protrudes forward through the attachment window 4 of the outlet cover 3 and is exposed to the outside, and an outlet cover 3 that extends rearward from the outer edge portion of the display surface portion 11. An insertion portion 12 inserted into the mounting window 4 formed on the side, and extends laterally from the rear end portion of the insertion portion 12, and on the back side of the installation surface W, specifically on the back side of the outlet cover 3 And a flange portion 13 to be fixed.

  The display surface portion 11 is formed in a substantially rectangular belt shape extending in the vertical direction along the surface of the outlet cover 3. Specifically, the display surface portion 11 includes a flat upper surface portion 11 a having a least forward protrusion and a lower end thereof. It consists of an intermediate inclined surface portion 11b having an inclined posture extending forward and downward, and a flat lower surface portion 11c having the largest protrusion extending downward from the lower end thereof.

As shown in FIGS. 2 and 4, the upper surface portion 11 a of the display surface portion 11 is powered on the connection window 14 where the connection port portion 31 a of the telephone line modular adapter 31 faces and the information communication unit U <b> 1. And the display hole 16 that transmits the light of the power indicator 33 that lights when the routing function (information communication function using wired LAN or wireless LAN) is available, and access that displays the access state of the network by lighting. A display hole 17 for transmitting the light of the indicator 34, an operation hole 18 for resetting the reset switch 35 in the casing 10 with a thin rod-shaped operation tool such as a toothpick, and the like are provided.
The lower surface portion 11c of the display surface portion 11 is provided with a connection window 15 through which the connection port portion 20a of the LAN modular adapter 32 faces the outside.

As shown in FIGS. 5 and 6, the insertion portion 12 has a pair of planar side wall portions 12 a and 12 b that extend rearward from each of the side edge portions of the display surface portion 11 and face each other.
The flange portion 13 is formed as a pair of bowl-shaped flat plate portions 13a and 13b extending in the left-right direction from the pair of planar side wall portions 12a and 12b.
That is, on the inner wall surface of the front divided casing 10A, the inner wall surfaces of the planar side wall portions 12a and 12b of the insertion portion 12 and the inner wall surfaces of the flange-shaped flat plate portions 13a and 13b of the flange portion 13 are parallel to each other. A pair of rear corners 41a and 41b and a pair of parallel front corners 42a and 42b formed by the inner wall surface of the planar side wall portions 12a and 12b of the insertion portion 12 and the inner wall surface of the display surface portion 11 are formed. Will be provided.
As shown in FIG. 2, engaging recesses 19 for attaching the information communication unit U1 to the mounting frame by engaging with the engaging projections of the mounting frame are provided at a plurality of locations on both flange portions 13 of the front divided casing 10A. Is formed.

As shown in FIGS. 3 and 4, the rear surface of the rear divided casing 10 </ b> B has a vertical and flat upper back surface portion 22 with the least amount of rearward protrusion, and a flat shape extending rearward from the lower end thereof in the horizontal direction. The intermediate horizontal back surface portion 23 and a vertical and flat lower back surface portion 24 having the largest projecting margin extending downward from the front end thereof.
An opening 26 for WAN and an opening 25 for telephone line are formed in the intermediate horizontal back surface portion 23 of the rear divided casing 10B. The WAN opening 26 is equipped with a WAN modular adapter 39 to which the modular jack of the communication cable on the WAN side is detachably connected, with its connection port 39a exposed upward, In addition, a telephone line connection connector 38, which is an example of a communication line connection connector into which two core wires of a 6-pole two-core telephone cable are detachably inserted and connected, is provided in the opening 25 for the telephone line. The two communication line insertion holes 38a are exposed and opened upward.

As shown in FIG. 4, a circuit board 30 is provided inside the casing 10. The circuit board 30 is fixed to the casing 10 in a posture along a wall surface that is an installation surface in a state where the information communication unit U1 is attached to the outlet portion 1.
The circuit board 30 includes a first circuit board 30A equipped in the front divided casing 10A and a second circuit board 30B equipped in the rear divided casing 10B.

An electrical insulation distance is secured between the first circuit board 30A and the second circuit board 30B by the signal connector 36 and the spacer 37, and the first circuit board 30A and the second circuit board 30B are connected to the signal connector. 36 and so on.
On the second circuit board 30B, a modular adapter 39 for WAN and a telephone line connection connector 38 provided on the back side of the rear divided casing 10B are mounted.

On the first circuit board 30A, a telephone line modular adapter 31, a LAN modular adapter 32, and a wireless LAN antenna 50 are mounted.
The wireless LAN antenna 50 includes two antennas 50A and 50B, which are a first antenna 50A and a second antenna 50B, both having sensitivity in the frequency band of the wireless LAN, and each of these antennas 50A and 50B includes: An antenna element 51 formed in a strip shape extending along the inner wall surface of the casing 10, and a plate-like ground plate 52 disposed close to the antenna element 51 at a distance capable of electromagnetic field coupling Consists of.
The antenna element 51 and the ground plate 52 are made of a conductive metal plate such as copper, and are connected to the first circuit board 30A, whereby the ground plate 52 is grounded, while the antenna element 51 is connected. Is applied with a high frequency voltage of a predetermined frequency used for wireless LAN communication. The antennas 50A and 50B are configured to transmit and receive communication waves in a form in which an electromagnetic field is generated between the antenna element 51 and the ground plate 52 by applying a high-frequency voltage to the antenna element 51. ing.
In addition, each antenna element 51 and ground plate 52 in each antenna 50A, 50B are connected to the circuit board 30 via a spring terminal 40 that expands and contracts in the front-rear direction. The spring terminal 40 is normally fixed to the circuit board 30 side, but may be configured to be fixed to the antenna element 51 side.

Furthermore, the information communication unit U1 is characterized by the arrangement state of the two antenna elements 51A and 51B provided in the two antennas 50A and 50B, respectively. Hereinafter, the feature of the arrangement state of the antenna element 51 will be described with reference to FIGS.
Two antenna elements 51A and 51B are formed in a plate shape along the inner wall surface of the front divided casing 10A, and on the inner wall surface of the insertion portion 12 extending rearward from the outer edge portion of the display surface portion 11, the display surface portion 11 are distributed and arranged at positions spaced apart from each other with the rear side internal space therebetween. As a result, the distance between the antenna elements 51A and 51B is sufficiently large, and the mutual interference of the transmitted and received waves in the respective antenna elements 51A and 51B is satisfactorily suppressed.

  As described above, the wired LAN modular adapter 32 and the telephone line modular adapter 31 are arranged behind the display surface 11. That is, a plurality of antenna elements 51A and 51B distributed and arranged at positions spaced apart from each other with the rear side of the display surface portion 11 interposed therebetween are arranged with the modular adapters 31 and 32 interposed therebetween. As a result, the mutual interference of the transmission and reception waves in the respective antenna elements 51A and 51B is further suppressed.

The insertion portion 12 has a pair of planar side wall portions 12 a and 12 b that extend rearward from the respective side edge portions of the display surface portion 11 and face each other.
That is, the planar side wall portions 12a and 12b are flat surfaces that are erected in the vertical direction, and are disposed so as to face each other in the horizontal direction.
The two antenna elements 51A and 51B are distributed and arranged on the inner surface sides of the pair of planar side wall portions 12a and 12b. In short, the antenna element 51A of the first antenna 50A is disposed on the inner surface side of the planar side wall portion 12a on the left side when viewed from the front (viewed from the front in FIG. 1), while the antenna element 51B of the second antenna 50B is It is arranged on the inner surface side of the planar side wall portion 12b on the right side as viewed in the front direction.

And by such a rational structure, each antenna element 51A, 51B is arrange | positioned in the position spaced apart on both sides of the back side internal space of the display surface part 11, Furthermore, the back side internal space of the display surface part 11 is further arranged. It will be arrange | positioned on a diagonal position on both sides, and the mutual interference of the transmission / reception wave in the said each antenna element 51A, 51B will be suppressed more favorably.
Further, since the pair of planar side wall portions 12a and 12b are planes parallel to each other, the antenna elements 51A and 51B arranged in a posture along the planar side wall portions 12a and 12b are along the plane. Each directivity is determined as a state extending vertically or horizontally.

Each antenna element 51A, 51B is arranged in a unique shape and posture along the inner wall surface of the front divided casing 10A, and the shape and posture will be described below.
First, as shown in FIG. 5, the antenna element 51A of the first antenna 50A disposed on the left planar side wall 12a side is a rear angle formed by the planar side wall 12a and the bowl-shaped flat plate 13a. It has the back bending part P2a along the part 41a.

Specifically, at the base end side of the rear bent portion P2a of the antenna element 51A, the rear bent portion P2a is used as a base point along the inner wall surface of the bowl-shaped flat plate portion 13a and parallel to the inner wall surface in the horizontal direction side. A first extending portion P1a that extends is formed, and the spring terminal 40 is connected to the extending portion P1a.
On the other hand, on the front end side of the rear bent portion P2a of the antenna element 51A, the first bent portion extending in the horizontal direction parallel to the inner wall surface along the inner wall surface of the planar side wall portion 12a with the rear bent portion P2a as a base point. Two extending portions P3a are formed.
Further, a front bent portion P4a that is bent downward in the vertical direction is formed on the distal end side of the second extending portion P3a. On the distal end side of the front bent portion P4a, the front bent portion P4a is used as a base point. A third extending portion P5a (an example of a front region) is formed along the planar sidewall portion 12a so as to extend downward in the vertical direction in parallel with the planar sidewall portion 12a.

  That is, the antenna element 51A has a posture in which the rear bent portion P2a is along the rear corner portion 41a and is parallel to the planar side wall portion 12a along the planar side wall portion 12a in the entire front end side of the rear corner portion 41. Since the antenna element 51A is disposed in a state that extends in the horizontal direction and the vertical direction, the posture and position of the antenna element 51A are stabilized, and communication failure or damage due to the deviation of the antenna element 51A is avoided. .

Further, the third extending portion P5a of the antenna element 51A is disposed at a position adjacent to the inner wall portion of the lower surface portion 11c having the largest protrusion margin from the surface of the outlet cover 3, specifically, The third extending portion P5a, which is the front region on the distal end side of the front bent portion P4a, is located in front of the portion corresponding to the installation surface W.
Accordingly, in the third extending portion P5a of the antenna element 51A, a good transmission / reception wave can be transmitted between the mobile communication terminal existing on the front side of the installation surface W without being obstructed by the installation surface W located on the rear side. As a result, more stable wireless LAN communication is established.
Further, the width of the third extending portion P5a is set so that there is no interference with the connection window 14 in the area adjacent to the connection window 14, but is set to be relatively wide in the lower part. Has been. This improves the stability and speed of wireless LAN communication.

  Next, the antenna element 51B of the second antenna 50B arranged on the right side planar wall portion 12b side is a plane as shown in FIG. 6 in the same manner as the antenna element 51A similar to the first antenna 50A described above. It has the back bending part P2b along the back corner | angular part 41b formed by the shape side wall part 12b and the bowl-shaped flat plate part 13b.

Specifically, on the base end side of the rear bent portion P2b of the antenna element 51B, the rear bent portion P2b is used as a base point along the inner wall surface of the bowl-shaped flat plate portion 13b and parallel to the inner wall surface in the horizontal direction side. A first extending portion P1b that extends is formed, and the spring terminal 40 is connected to the extending portion P1b.
On the other hand, at the front end side of the rear bent portion P2b of the antenna element 51B, the first bent portion extending in the horizontal direction parallel to the inner wall surface along the inner wall surface of the planar side wall portion 12b with the rear bent portion P2b as a base point. Two extending portions P3b are formed.
Further, on the distal end side of the second extending portion P3b, there is a front bent portion P4b along the front corner portion 42b formed by the inner wall surface of the planar side wall portion 12b and the inner wall surface of the display surface portion 11, and A third extending portion P5b (an example of a front region) is formed on the front end side of the front bent portion P4b and extends vertically downward along the inner wall surface of the display surface portion 11 in parallel with the inner wall surface. Yes.
That is, the antenna element 51B has a posture in which the rear bent portion P2b is along the rear corner portion 41b, and is parallel to the planar side wall portion 12a along the planar side wall portion 12a in the entire front end side of the rear corner portion 41. Since the front bent portion P4b is arranged in a posture along the front corner portion 42b, the posture and position of the antenna element 51B are stabilized. Thus, communication failure or damage due to the shift of the antenna element 51B or the like is avoided.

Further, the third extending portion P5b of the antenna element 51B extends from the surface of the outlet cover 3 to the lower side in the vertical direction with the upper surface portion 11a having the least protruding margin as a base point, and the lower the protruding margin to the front. It arrange | positions with the attitude | position which cuts through the intermediate | middle inclined surface part 11b which increases. In other words, the third extending portion P5a of the antenna element 51B is positioned forward of the portion corresponding to the installation surface W and is along the inner wall surface of the intermediate inclined surface portion 11b that is obliquely upward with respect to the room. It will be placed in a posture.
Therefore, in the third extending portion P5a of the antenna element 51B, it is favorable between the mobile communication terminal existing on the front side and the obliquely upward side of the installation surface W without being obstructed by the installation surface W located on the rear side. As a result, more stable wireless LAN communication is established.

  Further, in the upper surface portion 11a, the width of the region between the side edge portion of the connection window 14 and the front corner portion 42b is relatively wide, and the width of the third extension portion P5b of the antenna element 51B is It is set to be approximately equal to the width of the comparative enemy wide area, thereby improving the communication speed and sensitivity of the wireless LAN.

[Another embodiment]
(1)
In the above embodiment, the information communication unit U1 is configured as a type including the telephone line modular adapter 31 into which the telephone line modular jack is inserted and its connection window 15. However, the information communication unit U1 is separately shown in FIGS. As described above, the telephone line modular adapter 31 and its connection window 15 may not be provided. The wireless LAN antenna 60 provided in the information communication unit is arranged to have substantially the same configuration and shape as the wireless LAN antenna 50 of the above-described embodiment.
That is, each of the two antenna elements 61A and 61B is disposed at a position that is spaced apart from the inner space on the rear side of the display surface portion 11 where the modular adapter 32 for wired LAN is disposed, and further on the rear side of the display surface portion 11. The antenna elements 61A and 61B are arranged at diagonal positions across the internal space, and the mutual interference of transmission and reception waves in the respective antenna elements 61A and 61B is satisfactorily suppressed.
Furthermore, the antenna elements 61A and 61B have a planar side wall in a posture in which the rear bent portions P2a and P2b are along the rear corner portions 41a and 41b, and in the entire front end side of the rear corner portion 41, as in the above embodiment. The antenna elements 61B are arranged in a state extending in the horizontal direction and the vertical direction in parallel with the planar side wall portions 12a and 12b along the portions 12a and 12b. Since the antenna elements 61A and 61B are arranged in a posture along the portion 42b, the posture and position of the antenna elements 61A and 61B are stabilized, and communication failure or damage due to a deviation of the antenna elements 61A and 61B is avoided. .
Furthermore, the third extending portion P5a of the antenna elements 61A and 61B is positioned in an appropriate state ahead of the portion corresponding to the installation surface W, so that stable wireless LAN communication is established.

(2)
In the above-described embodiment, the antenna elements 51A and 51B have been described with examples in which the rear bent portions P2a and P2b and the front bent portions P4a and P4b are provided in order to stabilize the posture and position and to stabilize the wireless LAN communication. These bent portions P2a, P2b, P4a, and P4b may be omitted as appropriate.

(3)
About the shape of the casing 10 demonstrated by the said embodiment, it can change suitably, In this invention, the said casing 10 is extended from the display surface part 11 exposed outside, and the outer edge part of the said display surface part 11 back. What is necessary is just to have the insertion part 12 inserted in the attachment window 4, and the flange part 13 extended from the rear-end part of the said insertion part 12 to the side, and being fixed by the back surface side of the outlet cover 3. FIG.

1: Outlet part 3: Outlet cover 4: Mounting window 10: Casing 11: Display surface part 12: Insertion part 12a: Planar side wall part 12b: Planar side wall part 13: Flange part 14: Connection window 15: Connection window 31: Modular adapter 32: Modular adapter 39: Modular adapter 41: Back corner 41a: Back corner 41b: Back corner 42a: Front corner 42b: Front corner 50: Antenna 51: Antenna element 60: Antenna 61: Antenna element P2a : Back bent portion P2b: Back bent portion P4a: Front bent portion P4b: Front bent portion U1: Information communication unit W: Installation surface

Claims (7)

Each antenna element of a plurality of antennas having sensitivity in the frequency band of the wireless LAN is built in the casing,
The casing is an information communication unit configured to be able to be installed in an embedded state in an outlet provided on an installation surface,
The casing has a display surface portion exposed to the outside, and an insertion portion that extends rearward from an outer edge portion of the display surface portion and is inserted into the outlet portion,
Each antenna element of the plurality of antennas is formed in a plate shape along the inner wall surface of the casing, and is separated from the inner wall surface of the insertion portion with the rear side internal space of the display surface portion therebetween. An information communication unit distributed at a location. The casing has a flange portion that extends laterally from a rear end portion of the insertion portion and is fixed on the back side of the installation surface,
2. The information communication unit according to claim 1, wherein at least one of the antenna elements of each of the plurality of antennas has a rear bent portion along a rear corner portion formed by the insertion portion and the flange portion. At least one of the antenna elements of each of the plurality of antennas extends forward along the inner wall surface of the insertion portion and has a front bent portion on the tip side in the extending direction, and the tip of the front bent portion The information communication unit according to claim 1 or 2, wherein a front region on the side is located in front of a portion corresponding to the installation surface. At least one of the antenna elements of each of the plurality of antennas extends forward along the inner wall surface of the insertion portion, and is formed by the insertion portion and the display surface portion on the distal end side in the extending direction. The information according to any one of claims 1 to 3, further comprising: a front bent portion along a front corner portion, and a front region on a tip side of the front bent portion extending along an inner wall surface of the display surface portion. communication unit.   5. A connection window into which a modular plug is inserted is formed on the display surface portion, and a modular adapter to which the modular plug is detachably connected is provided on the rear side of the connection window. The information communication unit according to item. The display surface portion is formed in a strip shape extending along the surface of the outlet portion,
The insertion portion has a pair of planar side wall portions extending backward from each of both side edge portions of the display surface portion and facing each other;
The information communication unit according to any one of claims 1 to 5, wherein each antenna element of the plurality of antennas is distributed and arranged on each of the pair of planar side wall portions. The information communication according to claim 6, wherein the antenna elements of the plurality of antennas are distributed and arranged at diagonal positions across the rear side internal space of the display surface portion in each of the pair of planar side wall portions. unit.

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