JP2009218943A - Information communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information communication device for preventing a communication means from being exposed to the outside in an energization state, when removing an exposed panel. <P>SOLUTION: The information communication device A has a body module M fixed onto a wall, and the exposed panel P that is removably attached to the front side of the body module M and receives power supplied from a body-side connector provided in the body module M. The body module M has a proximity switch SW comprising a lead switch turned on by allowing a permanent magnet MG provided in the exposed panel P to approach within a prescribed distance range. The proximity switch SW turns on conduction to the body-side connector when the exposure panel P is attached to the body module M and approaches the body module M. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information communication device used by being attached to a wall.

  Conventionally, as this type of information communication device, for example, an interphone system is constructed by connecting to a door phone slave unit as a counterpart device installed outside the home using a signal line, There are provided devices (interphone master unit) that can communicate with each other (for example, see Patent Document 1). The information communication apparatus exemplified in Patent Document 1 is an embedded information communication apparatus that is attached in a form in which a rear portion of a vessel is embedded in a wall.

  The information communication device used as the interphone master unit is provided with a video display unit and can be connected to a counterpart device provided with a camera to display video captured by the camera of the counterpart device. There are also things.

By the way, regarding this type of information communication device, a main body module having a power supply circuit and fixed to the wall, and a connecting means provided on the front side of the main body module by being detachably attached to the front side of the main body module are electrically connected. It is conceivable that it can be divided into exposed panels connected to each other. In this configuration, the exposed panel receives power supply from the power supply circuit provided in the main body module.
JP-A-6-291818

  In the configuration in which the main body module and the exposed panel can be divided as described above, when the exposed panel is removed from the main body module, the connection means is exposed to the outside while being energized. If it adheres, a current flows through the foreign substance, which may cause a failure of the main body module.

  The present invention has been made in view of the above-described reasons, and an object thereof is to provide an information communication apparatus in which the connection means is not exposed to the outside while the energized state is removed when the exposed panel is removed.

  The invention according to claim 1 is a main body module having a power circuit and an information port for exchanging information and fixed to a wall, and a connection provided in the main body module by being detachably attached to the front side of the main body module And an exposed panel having at least one of an information input means and an information output means for receiving power supply from a power supply circuit, and the main body module is connected to the connecting means in accordance with the distance from the exposed panel. A proximity switch for turning on / off the power supply is provided, and the proximity switch turns on the power supply to the connection means when the exposed panel comes close within a predetermined distance range of the main body module.

  According to this configuration, the main body module has the proximity switch that turns on and off the energization to the connection means in accordance with the distance from the exposed panel. Therefore, when the exposed panel is detached from the main body module, the energization to the connection means is automatically performed. Therefore, the connection means is not exposed to the outside in the energized state. Further, since the proximity switch turns on the energization to the connection means when the exposed panel comes close to within a predetermined distance range of the main module, for example, the relative position between the main module and the exposed panel for each product. Even when there is some variation in the relationship, it is possible to reliably turn on the energization to the connecting means in a state where the exposed panel is mounted on the main body module.

  According to a second aspect of the present invention, in the first aspect of the present invention, the exposed panel is provided with a permanent magnet, and the proximity switch is a reed switch that is turned on when the permanent magnet approaches within a predetermined distance range. It is characterized by that.

  According to this configuration, since the proximity switch is a reed switch, a power source for driving the proximity switch on and off is unnecessary, and standby power when the proximity switch is off can be reduced. There is also an advantage that the proximity switch can be reduced in size.

  The present invention has an advantage that when the exposed panel is removed, the connection means is not exposed to the outside while being energized.

  In the following embodiment, an interphone system is constructed by connecting to a door phone slave unit as a counterpart device installed outside the home by using a signal line, and the interphone system is connected to the counterpart device. The configuration of the information communication apparatus according to the present invention will be described using an interphone master unit that can communicate (call) as an example of the information communication apparatus.

  This information communication device includes a video display unit, and can display a video imaged by the camera unit of the counterpart device by being connected to the counterpart device provided with a camera unit for imaging a visitor. it can. The counterpart device includes a camera unit, an operation unit capable of operation input, a voice input / output unit which includes a speaker and a microphone and inputs / outputs a voice during a call with an information communication device, and an audio signal or video. A signal processing unit that inputs and outputs signals and a terminal unit to which a signal line is connected are provided.

(Embodiment 1)
As shown in FIG. 2A, the information communication apparatus A of the present embodiment is detachably mounted on the main body module M fixed to the wall so that the rear portion is housed in the wall, and on the front side of the main body module M. And an exposed panel P. Hereinafter, the configuration of the information communication apparatus A will be described with the upper, lower, left, and right as the information communication apparatus A attached to the wall as shown in FIG.

  As shown in FIG. 2A, the main body module M includes a body 1 formed in a box shape having a rectangular opening on the front surface, and a cover 2 covered on the front surface of the body 1. A circuit board (not shown) provided with the container 3 and mounted with various electric components is housed in the container 3. Furthermore, the main body module M includes a power supply terminal portion 5 (see FIG. 4) to which a power supply line for supplying commercial power is connected and a signal terminal portion 6 (see FIG. 4) to which a signal line is connected from the body 3. It is provided on the back side so that it can be exposed. The body 1 and the cover 2 are respectively provided with coupling claws 9 provided at the front end portions at both end surfaces in the vertical direction of the body 1 in the holes provided in the coupling pieces 8 protruding rearward from the respective vertical end portions of the cover 2. Coupled by engaging.

  The exposed panel P includes a panel case 10 formed in a thin rectangular shape with a front rectangular shape, and has a configuration in which a circuit board (not shown) on which various electrical components are mounted is housed in the panel case 10. . Further, the exposed panel P is provided with a transparent display window 11 on a part of the front wall of the panel case 10, so that the video display unit 12 (see FIG. 4) formed of a liquid crystal panel can be used as the display window in the panel case 10. 11 behind. Here, the panel case 10 has a display window 11 at a position on the left side of the front surface, and a speaker mounting portion 13 having a large number of small holes is provided on the right side of the display window 11 and is operated. An operation handle 15 constituting the portion 14 (see FIG. 4) is disposed below the speaker mounting portion 13. Furthermore, a microphone hole 16 is formed in the lower left of the display window 11, and a plurality of push buttons 17 constituting the operation unit 14 are provided in the left and right directions (here, the right side of the microphone hole 16, that is, below the display window 11, here). 2) are arranged. In the panel case 10, a speaker 18 a (see FIG. 4) is provided at a position corresponding to the speaker mounting portion 13, and a microphone 18 b (see FIG. 4) is provided at a position corresponding to the microphone hole 16. The microphone 18b constitutes a voice input / output unit 18 that inputs and outputs voice during a call with the counterpart device 50.

  Here, the main body module M of the present embodiment suppresses the amount of protrusion of the body 3 from the wall surface, and gives a sense of unity in appearance with the generally used embedded wiring apparatus, and is attached. In order to reduce the cost of the member used for the mounting, it is attached to the wall using an embedded box SB for an embedded wiring device installed in the wall. The embedding box SB is formed in a box shape with a front opening, and a pair of inner surfaces facing each other in the vertical direction are for mounting screws (not shown) for fixing the main body module M to the embedding box SB. A plurality of fixture fixing protrusions 22 having screw holes 21 are provided in a protruding manner. In the wall material W constituting the wall surface, a rectangular construction hole 23 is opened in a portion corresponding to the embedded box SB.

  The main body module M is attached to the embedding box SB from the front through the construction hole 23, and the body 3 is formed in a shape and size that can accommodate the rear part in the embedding box SB. Moreover, in this embodiment, the container 3 of the main body module M is formed in a size corresponding to the embedded box SB in which up to two mounting frames (not shown) can be mounted. The single mounting frame here means a mounting frame that can be mounted by arranging three wiring devices of unit dimensions standardized for embedded wiring devices in the width direction (vertical direction). Hereinafter, a dimension in which two mounting frames for one station are connected in the left-right direction is referred to as “for two stations”, and a dimension in which three mounting frames are connected is referred to as “for three stations”. That is, the main body module M of the present embodiment is set to a size that can be attached to the double embedded box SB.

  More specifically, the cover 2 of the main body module M has a pair of attachment pieces 24 that are extended in a direction away from each of the end surfaces in the vertical direction. The pair of attachment pieces 24 are formed over substantially the entire length of the cover 2 in the left-right direction. Each mounting piece 24 has a plurality of box holes 25 (two in this case) through which mounting screws are inserted in the same manner as the mounting frame used when fixing the embedded wiring device to the embedded box SB. It is formed one by one. Each attachment piece 24 protrudes forward compared to the other parts of the cover 2.

  Each of the main body module M and the exposed panel P configured as described above is provided with a mounting means for mounting the exposed panel P on the main body module M by engaging with each other. In the main body module M, as shown in FIG. 3A, a hooking hole 27 provided in the lower attachment piece 24 and an attachment hole 26 provided in the upper attachment piece 24 are provided as attachment means. A plurality of hooking holes 27 are juxtaposed in the left-right direction, and the mounting holes 26 are provided on both sides of one box hole 25. In the exposed panel P, as shown in FIG. 3 (b), it protrudes from a position corresponding to each hooking hole 27 at the lower end portion on the back side, and the tip part extends downward, and the tip part is the hooking hole 27. Are attached to the hook hole 27 by being inserted into the hook hole 27, and mounting protrusions 30 protruding at positions corresponding to the mounting holes 26 at the upper end of the back surface. . An engaging claw that protrudes upward is provided at the distal end of the mounting protrusion 30, and the upper surface of the engaging claw is inclined so that the protruding amount from the mounting protrusion 30 increases toward the base end side of the mounting protrusion 30. ing.

  With this configuration, the exposed panel P is exposed so that the exposed panel P is rotated around the lower side of the front surface of the main body module M with the hook hole 27 serving as a fulcrum while the hook 29 of the exposed panel P is hooked on the hook hole 27 of the main body module M. If the upper end of the panel P is pressed against the body module M side, the mounting projection 30 of the exposed panel P is inserted into the mounting hole 26 of the body module M, and the engaging claw is engaged with the mounting hole 26, the exposed panel P Is attached to the main body module M.

  Further, the exposed panel P is formed to have a front surface having the same size as a wiring device that can be attached to the triple embedded box SB, and the vertical dimension is set slightly larger than that of the main body module M. Therefore, the exposed panel P is mounted so as to cover the front surface of the main body module M.

  Here, the internal circuit of the information communication apparatus A is divided into a main body module M and an exposed panel P.

  That is, the main body module M is connected to the power supply terminal unit 5 through the proximity switch SW as shown in FIG. 4 and supplies a DC power supply to the internal circuit (AC / DC power supply unit 34a and DC / DC power supply unit). 34b) and an external interface unit 37 connected to the signal terminal unit 6 as an information port for exchanging information. The proximity switch SW will be described in detail later.

  On the other hand, as shown in FIG. 4, the exposed panel P is supplied with power from the power supply circuit 34 such as the audio input / output unit 18, the video display unit 12, and the operation unit 14 (input and output information). (Information output means), a signal processing unit 35 that is connected to the audio input / output unit 18 and the video display unit 12 and the external interface unit 37 and inputs / outputs audio signals and video signals, and an operation input from the operation unit 14 And an overall control unit 36 that controls the operation of each part of the internal circuit. The signal processing unit 35 includes an audio processing unit 35 a that includes an amplifier that amplifies the audio signal, and a video transmission processing unit 35 b that includes a demodulation circuit that demodulates the video signal and displays video on the video display unit 12. In this embodiment, the audio signal and the video signal are multiplexed and transmitted on the signal line. Therefore, the signal processing unit 35 includes the audio processing unit 35a, the video transmission processing unit 35b, and the external interface unit 37. A demultiplexer 35c is provided for separating the multiplexed audio signal and video signal.

  Here, the exposed panel P has a panel side connector Cp1 (see FIG. 3B) for connecting the main body module M, and the main body module M is connected to the panel side connector Cp1. (See (a)) as a connecting means, and the panel side connector Cp1 and the main body side connector Cm1 are connected to each other, whereby the main body module M and the exposed panel P are electrically connected to each other. DC power is supplied from the power circuit 34. An external interface unit 37 and a power circuit 34 are connected to the main body side connector Cm1 in the main body module M, and an overall control unit 36 and a signal processing unit 35 are connected to the panel side connector Cp1 in the exposed panel P. .

  The main body side connector Cm1 is mounted on the circuit board in the body 3 of the main body module M, and is exposed to the front side of the main body module M through a hole provided in the cover 2. The panel-side connector Cp1 is disposed at a position where it abuts against the main body side connector Cm1 in a state where the exposed panel P is attached to the main body module M, and only by attaching the exposed panel P to the main body module M, the main body side connector Cm1 and The panel-side connector Cp1 comes into contact with each other to complete the electrical connection between the main body module M and the exposed panel P. Therefore, workability is improved as compared with the case where the work of attaching the exposed panel P to the main body module M and the work of electrically connecting the exposed panel P to the main body module M are performed separately.

  According to the configuration described above, the information communication apparatus A is divided into the main body module M and the exposed panel P. Therefore, by setting the main body module M as a common specification, the information communication apparatus can be replaced only by the exposed panel P. It is possible to easily change the function of A (for example, the presence / absence of a recording / playback function and the screen size of the video display unit 12).

  By the way, the proximity switch SW provided in the main body module M is for turning on / off the power supply to the power supply circuit 34, and therefore, the main body side connector Cm1 as the connection means is energized while the proximity switch SW is on. In the period when the proximity switch SW is off, the energization to the main body side connector Cm1 is stopped. Here, the proximity switch SW of the present embodiment has a pair of leads made of a ferromagnetic material, and when a magnetic field is applied from the outside in the axial direction of these leads, both leads are magnetized and an attractive force is generated between the two leads. It consists of a reed switch that turns on when As shown in FIG. 1A, the proximity switch SW is disposed in the body 3 of the main body module M and in a position in contact with the back of the front wall of the body 3.

  Further, the exposed panel P is provided with a permanent magnet MG. When the exposed panel P is mounted on the main body module M, the magnetic field generated by the permanent magnet MG acts on the proximity switch SW to turn on the proximity switch SW. It is configured. Here, the permanent magnet MG is located at the position corresponding to the proximity switch SW of the main body module M with the exposed panel P mounted on the main body module M in the panel case 10 as shown in FIG. It is arrange | positioned in the position which touches 10 rear wall front surfaces. 1A, when the exposed panel P is attached to the main body module M, the permanent magnet MG of the exposed panel P moves the rear wall of the panel case 10 with respect to the proximity switch SW of the main body module M. Since the magnetic field generated by the permanent magnet MG acts on the proximity switch SW, the proximity switch SW is turned on. On the other hand, in the state where the exposed panel P is detached from the main body module M as shown in FIG. 1B, the permanent magnet MG of the exposed panel P is separated from the proximity switch SW of the main body module M, and thus is generated by the permanent magnet MG. The magnetic field does not act on the proximity switch SW, and the proximity switch SW is turned off.

  According to the configuration described above, the proximity switch SW provided in the main body module MG turns on and off the energization to the main body side connector Cm1 which is the connection means according to the distance between the main body module M and the exposed panel P. In the state where the exposed panel P is detached from the main body module M, the energization to the main body side connector Cm1 is automatically turned off. Therefore, the main body side connector Cm1 remains in the energized state and is not exposed to the outside. In addition, since the proximity switch SW is turned on only when the exposed panel P comes close to within a predetermined distance range of the main body module M, the main body module M is mounted between the main body module M and the exposed panel P with the exposed panel P mounted. Even when there is a gap and the size of the gap varies slightly from product to product, the proximity switch SW can be reliably turned on. Here, the distance between the main body module M and the exposed panel P when the proximity switch SW is turned on can be adjusted by, for example, the magnitude of the magnetic flux density of the permanent magnet MG.

  In addition, since the proximity switch SW is a reed switch in this embodiment, a power source for driving the proximity switch SW on and off is unnecessary, and standby power (consumption) of the information communication apparatus A with the proximity switch SW turned off is not necessary. There is an advantage that the electric power can be reduced to zero. Furthermore, since the reed switch can be easily reduced in size compared to a push button switch (not shown) having an operation unit for ON / OFF operation, the proximity switch SW and the information communication apparatus A as a whole can be reduced in size. There is also an advantage that it can be achieved. Furthermore, since the proximity switch SW does not need to be exposed from the body 3 and it is not necessary to form a hole or the like for operating the proximity switch SW in the body 3, it is possible to turn on / off the power supply to the main body side connector Cm1. However, it is possible to impart drip-proof properties to the main body module M and the exposed panel P.

  The proximity switch SW is not limited to a reed switch. For example, a magnetic sensor that detects the proximity of the permanent magnet MG in the exposed panel P using a Hall element, or reflection of light on the back surface of the exposed panel P. May be an optical sensor that detects the proximity of the exposed panel P. However, when these magnetic sensors and optical sensors are used for the proximity switch SW, a power source for driving the proximity switch SW is required. Therefore, the proximity switch SW needs to be provided in the subsequent stage of the power supply circuit 34. Standby power is generated in the off state.

  By the way, in the above-described embodiment, the information communication apparatus A in which the main body module M is embedded is described. However, the main body module M is not limited to the embedded type, and as shown in FIG. The present invention may be applied to the information communication apparatus A including the exposed main body module M that is fixed to the wall in the form.

  Moreover, although the example which applies this invention to the information communication apparatus A as an intercom main unit was shown in the said embodiment, it is not restricted to this example, For example, information, such as the electric power generation amount of photovoltaic power generation, is monitored. The present invention can be applied to various information communication devices A such as a display device.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of Embodiment 1 of this invention is shown, (a) is a schematic sectional drawing of the state which mounted | wore the exposure panel, (b) is a schematic sectional drawing of the state which removed the exposure panel. The structure same as the above is shown, (a) is an exploded perspective view, and (b) is a perspective view of the state attached to the wall. The structure same as the above is shown, (a) is a perspective view of a main body module, and (b) is a perspective view of an exposed panel. It is a schematic block diagram which shows a structure same as the above. The other example of a structure is shown, (a) is the perspective view seen from the front side, (b) is the perspective view seen from the back side.

Explanation of symbols

34 Power supply circuit A Information communication device Cm1 Main body side connector (connection means)
M Main module MG Permanent magnet P Exposed panel SW Proximity switch

Claims (2)

  It is electrically connected to the main body module that has a power circuit and an information port for exchanging information and is fixed to the wall, and a connection means provided on the main body module by being detachably attached to the front side of the main body module. An exposure panel having at least one of an information input means and an information output means for receiving power supply from the power supply circuit, and the main body module includes a proximity switch for turning on and off the connection means according to the distance from the exposure panel. And a proximity switch that turns on energization to the connection means when the exposed panel comes close to within a predetermined distance range of the main body module. The information communication apparatus according to claim 1, wherein a permanent magnet is provided on the exposed panel, and the proximity switch is a reed switch that is turned on when the permanent magnet approaches within a predetermined distance range.

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