JP6550309B2 - Intercom equipment - Google Patents

Description

  The present invention relates to, for example, an intercom device such as an intercom master set installed in a living room and responding to a call from an intercom handset.

  Conventionally, for example, an intercom master installed in a living room is provided with a liquid crystal display device for displaying an image captured by an intercom slave as described in Patent Document 1, for example.

JP 2007-96501 A

  In recent years, in intercom devices such as intercom base units, downsizing and thinning have been desired. However, if the liquid crystal display device and the control substrate are electrically connected by a cable in the intercom device as in the prior art, there is a limit to miniaturization and thinning.

  Then, this invention is made in view of the said problem, Comprising: It aims to provide the intercom apparatus which can attain size reduction and thickness reduction rather than before.

In order to achieve the above object, according to the present invention, a liquid crystal display device and a back side of the liquid crystal display device are disposed in a main body case, and a call operation between a display operation in the liquid crystal display device and other intercom devices An intercom device including a control substrate for controlling the liquid crystal display, wherein a liquid crystal support member for supporting the liquid crystal display device is disposed on the surface of the control substrate, and the liquid crystal support member supports the liquid crystal display device There is provided a mounting portion including an opening for communicating the side and the control substrate side, and a pair of projecting pieces projecting in the opposite direction from the rear end edge of the opening into the opening, and the surfaces of both the projecting pieces are A space is formed behind the periphery of the mounting portion of the liquid crystal support member, on the surface side of both the projecting pieces in the opening, and a conductive elastic member supports the liquid crystal display device. project to the side and the control board side And, in a state of being sandwiched by a pair of protruding pieces are attached is fitted to the mounting portion, sandwiched between the liquid crystal support members supported liquid crystal display device and the control board of the surface, elastic deformation in space The liquid crystal display device and the control substrate are electrically connected by an elastic member in close contact with the liquid crystal display device and the control substrate.
According to the first aspect of the present invention, the liquid crystal support member for supporting the liquid crystal display device is disposed on the surface of the control substrate, and the liquid crystal support member supports the liquid crystal display device on the side and the control substrate side. A mounting portion is provided as an opening for communication, and a conductive elastic member is fitted and mounted to the mounting portion in a state of being protruded from the side supporting the liquid crystal display device and the control substrate side. Then, the liquid crystal display device and the control substrate are electrically held by an elastic member held between the liquid crystal display device supported by the liquid crystal support member and the surface of the control substrate and elastically deformed to be in close contact with the liquid crystal display device and the control substrate. It is possible to connect to Therefore, compared with the conventional intercom apparatus in which the liquid crystal display device and the control substrate are electrically connected using a cable, a space for cable routing and the like is not necessary, and the space for connection of both is narrowed. As a result, the intercom device can be made smaller and thinner. In addition, in order to fix the elastic member attached to the mounting portion by sandwiching the liquid crystal display device and the control substrate, the installation of the elastic member, the connection operation of the liquid crystal display device and the control substrate, and the assembly operation of the intercom device It becomes easy.

According to the first aspect of the present invention, the mounting portion includes a pair of projecting pieces projecting in the opposite direction toward the inside of the opening, and the elastic member is sandwiched by the pair of projecting pieces, It is fitted into the mounting portion and can be mounted. Therefore, the careless removal of the elastic member from the inside of the mounting portion and the positional deviation of the elastic member in the mounting portion can be prevented, and the work of connecting the liquid crystal display device and the control board and the work of assembling the intercom device are extremely time-consuming. It can be easy to
Furthermore, according to the invention as set forth in claim 1, the surfaces of both the projecting pieces are positioned behind the periphery of the mounting portion of the liquid crystal support member to form a space on the surface side of the both projecting pieces in the opening. The elastic member is elastically deformed in the space. That is, the elastically deformable elastic member can be accommodated in the space. Therefore, the elastic member does not pass over the mounting portion and enter between the liquid crystal display device and the liquid crystal support member, and there is no problem that the liquid crystal display device shakes or the attitude of the liquid crystal display device is inclined. .

According to the present invention, in order to electrically connect the liquid crystal display device and the control substrate by using the elastic member having conductivity, the related art has conventionally connected the liquid crystal display device and the control substrate by using the cable. Compared to the intercom device of the above, a space for drawing the cable and the like is not necessary, and the space for connecting both can be narrowed, and consequently, the intercom device can be miniaturized and thinned. Further, since the elastic member attached to the attachment portion is sandwiched and fixed between the liquid crystal display device and the control substrate, the connection operation between the liquid crystal display device and the control substrate can be made extremely easy.
Furthermore, a pair of projecting pieces projecting in the opposite direction from the rear end edge of the opening into the opening are provided, or the surfaces of both projecting pieces are positioned behind the periphery of the mounting portion of the liquid crystal support member Since spaces are formed on the surface side of both projecting pieces in the opening, careless removal of the elastic member from the inside of the mounting portion and positional deviation of the elastic member in the mounting portion can be prevented. In addition, the connection between the liquid crystal display and the control substrate, and hence the assembly of the intercom device, can be made very easy, and the elastic member penetrates between the liquid crystal display and the liquid crystal support member beyond the mounting portion. There is no such a problem that the liquid crystal display device shakes or the attitude of the liquid crystal display device tilts.

It is perspective explanatory drawing which showed the intercom master unit from the front side. It is a perspective explanatory view showing the inside of the main part case of the intercom master machine. It is the perspective explanatory view which showed the state which removed the electroconductive gasket from the state of FIG. It is explanatory drawing which showed the cross section in the up-down direction of the intercom master machine in the attachment position of a conductive gasket.

  Hereinafter, an intercom master according to an embodiment of the present invention will be described in detail based on the drawings.

  FIG. 1 is a perspective explanatory view showing the intercom master unit 1 from the front side. FIG. 2 is a perspective explanatory view showing a state in which the front case 2 and the liquid crystal display device 10 are removed from the intercom master unit 1 from the front side. FIG. 3 is a perspective explanatory view showing a state in which the conductive gasket 21 is removed from the state of FIG. FIG. 4 is an explanatory view showing a cross section of the intercom master unit 1 in the vertical direction at the mounting position of the conductive gasket 21. As shown in FIG.

  The intercom master unit 1 has a main case formed by assembling a front case 2 disposed on the front side and a rear case 3 disposed on the rear side. The screen of the liquid crystal display device 10 is exposed at the upper front of the main body case, and is used as a video display unit 4 for displaying a video or the like captured by an intercom slave unit (not shown). Further, on the right side of the video display unit 4, a microphone unit 5 for a resident to talk with a visitor is provided. Furthermore, below the image display unit 4, a response button 6 is provided which the resident pushes in and operates when responding to a call from the intercom slave 1. In addition, on the lower side of the response button 6, a speaker unit 7 for a resident to talk with a visitor is provided. Then, such an intercom master unit 1 is installed on a wall surface or the like in the room, and when the response button 6 is operated in response to a call from the intercom slave unit, an image is displayed on the video display unit 4 and the intercom It becomes possible to communicate with the handset. Reference numeral 8 denotes a function button for turning on a lamp (not shown) of the intercom master unit 1 or adjusting the volume of a call.

Here, a structure relating to energization of the liquid crystal display device 10 in the intercom master 1, which is a main part of the present invention, will be described in detail.
In the main body case of the intercom master unit 1, a control board 20 for controlling the operation of the intercom master unit 1 (including the display operation in the liquid crystal display device 10 as well as the call operation with the intercom slave unit) is provided. It is built-in. In addition, the liquid crystal display device 10 is installed on the front side of the control substrate 20, and the operation frame body 11 is provided between the control substrate 20 and the liquid crystal display device 10. The actuating frame 11 is a synthetic resin member having an insulating property disposed over a wide range from the upper portion to the lower portion of the main body case, and the liquid crystal support portion 12 for supporting the liquid crystal display device 10 at the upper portion The response button 6 is provided on the side, and the function buttons 8 are all integrally formed on the right side. The liquid crystal support portion 12 is composed of a back plate portion and a rib erected forward from the surface of the back plate portion, and is a recessed portion which is recessed rearward by being surrounded vertically and horizontally by the rib. A conductive plate for electrically connecting the liquid crystal display device 10 supported by the liquid crystal support portion 12 to the back plate portion of the liquid crystal support portion 12 and the control substrate 20 positioned on the rear side of the operation frame body 11. A gasket mounting portion 13 for mounting the elastic gasket 21 is provided.

  The gasket mounting portion 13 is formed as an opening having a substantially rectangular shape in a front view, which allows the space in the liquid crystal support portion 12 to communicate with the rear space of the actuating frame body 11. From the upper side and the lower side of the opening, A pair of sandwiching pieces 14 for sandwiching the conductive gasket 21 are provided so as to protrude inward to the inside of the opening. Each pinching piece 14 is extended from the rear end edge of the opening to the inner side of the opening, and the surface of each pinching piece 14 is recessed rearward relative to the surface of the opening peripheral edge in the actuating frame 11. The concave space formed on the front side of the housing serves as a storage space 15 capable of storing a part of the squeezed and deformed conductive gasket 21 (FIG. 4). On the other hand, the conductive gasket 21 is an elastically deformable conductor formed in a square shape having a sufficiently thick thickness in the front-rear direction than the operation frame body 11, and is elastically deformed by being held between the holding pieces 14 and 14. In addition, it can be fitted into the gasket mounting portion 13 in a state of projecting to the space side in the liquid crystal support portion 12 and the control substrate 20 side.

  The operation frame body 11 is positioned on the front side of the control board 20 in the main body case as described above, and in the gasket mounting portion 13, a liquid crystal conduction portion (not shown) provided on the front side of the control board 20. ) Is exposed. Therefore, the conductive gasket 21 may be inserted into and attached to the gasket attachment portion 13 while being sandwiched between the sandwiching pieces 14 and 14, and then the liquid crystal display device 10 may be inserted into and supported by the liquid crystal support 12. Then, the conductive gasket 21 protruding to the space side in the liquid crystal support portion 12 and the control substrate 20 side is elastically deformed in such a manner that the front surface of the control substrate 20 and the back surface of the liquid crystal display device 10 are crushed from the front and rear Do. That is, the front surface of the conductive gasket 21 is in close contact with the rear surface (not shown) of the liquid crystal display device 10 and the rear surface of the conductive gasket 21 is in close contact with the liquid crystal conduction unit of the control substrate 20. Therefore, the liquid crystal display device 10 and the control substrate 20 are electrically connected via the conductive gasket 21.

A detection switch (not shown) for detecting the operation of the response button 6 and a detection switch (not shown) for detecting the operation of each function button 8 are provided on the front surface of the control board 20. ing. When the operation frame body 11 is positioned on the front side of the control board 20, each detection switch is positioned on the rear side or inside of the corresponding button.
In addition, the conductive gasket 21 deformed in fitting the liquid crystal display device 10 into the liquid crystal display unit 12 is stored in the storage space 15 formed on the surface side of the sandwiching pieces 14. At this time, the conductive gasket 21 to be crushed may be slightly deviated in the vertical direction. However, even in such a case, the conductive gasket 21 is housed in the housing space 15 and does not protrude beyond the gasket attachment portion 13 to the rear surface side of the liquid crystal display device 10.

  According to the intercom master unit 1 having the configuration as described above, the liquid crystal display device 10 and the control substrate 20 are electrically connected using the conductive gasket 21. Therefore, compared with the conventional intercom apparatus in which the two are electrically connected using a cable, a space required for cable routing and the like is not required, and the space relating to the connection of both can be narrowed. It is possible to reduce the size and thickness of the device.

  Further, the liquid crystal display device 10 is supported by the liquid crystal support portion 12 of the actuating frame 11, and the actuating frame 11 is disposed on the surface of the control substrate 20. An opening for communicating with the space on the control substrate 20 side is provided, and a gasket mounting portion 13 for mounting the conductive gasket 21 is formed. Then, by fitting the liquid crystal display device 10 into the liquid crystal display unit 12, the conductive gasket 21 attached to the gasket attachment portion 13 is crushed from the front and back by the back surface of the liquid crystal display device 10 and the front surface of the control substrate 20. It is made to be in close contact with each other. Therefore, there is no need to screw or stick the conductive gasket 21, and installation of the conductive gasket 21, connection between the liquid crystal display device 10 and the control substrate 20, and assembly of the intercom master unit 1 are facilitated. Can be done.

Furthermore, since the gasket attachment portion 13 is provided with a pair of sandwiching pieces 14 and 14 projecting toward the inside of the opening, the careless removal of the conductive gasket 21 from within the gasket attachment portion 13, the gasket attachment portion Positional displacement of the conductive gasket 21 within 13 can be prevented, and the connection between the liquid crystal display device 10 and the control substrate 20 and, consequently, the assembly of the intercom master unit 1 can be performed more easily.
Furthermore, the surface of each sandwiching piece 14 is recessed rearward relative to the periphery of the gasket attachment portion 13 to form the storage space 15 on the surface side of each sandwiching piece 14, and along with the attachment of the liquid crystal display device 10. The squeezed and deformed conductive gasket 21 and the vertically shifted conductive gasket 21 can be stored in the storage space 15. Therefore, the conductive gasket 21 does not enter between the back surface of the liquid crystal display device 10 and the surface of the liquid crystal support portion 12, and the liquid crystal display device 10 does not rattle or tilt in the mounting posture. .
In addition, in addition to the liquid crystal support 12, the operation frame body 11 is provided with the response button 6 and the function buttons 8 and 8 by integral molding, so that the number of parts can be reduced and installation of one member Accordingly, the liquid crystal support 12, the response button 6, and the function buttons 8, 8 can be installed at the same time, and the assembly of the intercom master unit 1 can be very easily performed.

  In addition, the intercom apparatus which concerns on this invention is not limited at all by the aspect of the said embodiment, About the structure which concerns on the attachment of a conductive gasket not to mention the whole structure of an intercom apparatus, the meaning of this invention In the range which does not deviate, it can change suitably as needed.

For example, in the above embodiment, the operation frame body including the liquid crystal support portion, the response button, and the function button is integrally formed as the liquid crystal support member, but a liquid crystal support member having only the liquid crystal support portion is used There is no problem in adopting a liquid crystal supporting member in which only one of the response button and the function button is integrally formed with the liquid crystal supporting portion.
In the above embodiment, although a pair of sandwiching pieces are provided in the gasket attachment portion, only one sandwiching piece is protruded into the opening, and the conductive gasket is formed by the sandwiching pieces and the opposing opening edge. It may be configured to be sandwiched, or may be configured to be fitted and attached with a conductive gasket that is a size larger than the opening without providing the sandwiching piece. Of course, it is also possible to employ a conductive gasket smaller than the opening.

Furthermore, although a detection switch for detecting the operation of the response button and a detection switch for detecting the operation of the function button are mounted on the control substrate for controlling the display operation of the liquid crystal display device, they should be separated on different substrates. Is also possible.
Furthermore, the shape and size of the actuation frame, for example, the position and shape of the liquid crystal display in the actuation frame can be changed as appropriate according to the position of the liquid crystal display and the response button in the main body case.
In addition, although the said embodiment demonstrates the intercom master machine which is an example of an intercom apparatus, if it is what incorporates a liquid crystal display device, it is other intercom apparatuses, such as an intercom apparatus used by an apartment house. But there is no problem at all.

  1 · · Intercom master unit (intercom device), 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 10 · · · · · · · · · · · · · · · · · · · · · · · working frame Body (liquid crystal support member) 12, liquid crystal support portion 13, gasket mounting portion (attachment portion) 14, sandwiching pieces (projecting pieces) 15, storage space 20, control substrate 21. Conductive gasket (elastic member having conductivity).

Claims (1)

A liquid crystal display device and a control board disposed behind the liquid crystal display device and controlling a display operation in the liquid crystal display device and a call operation with another intercom device are incorporated in a main body case. An intercom device,
A liquid crystal support member for supporting the liquid crystal display device is disposed on the surface of the control substrate,
The liquid crystal support member has an opening for communicating the side supporting the liquid crystal display device and the control substrate side, and a pair of projecting pieces projecting in the opposite direction from the rear end edge of the opening toward the inside of the opening A mounting portion is provided , and the surfaces of the two projecting pieces are positioned rearward of the periphery of the mounting portion of the liquid crystal support member, and a space is provided on the surface side of both the projecting pieces in the opening. Is formed,
Furthermore, an elastic member having conductivity protrudes to the side supporting the liquid crystal display device and the control substrate side , and is fitted into and attached to the mounting portion in a state of being sandwiched by the pair of projecting pieces. It has been
The liquid crystal is held by the liquid crystal display device supported by the liquid crystal support member and the surface of the control substrate, and the elastic member is elastically deformed in the space to be in close contact with the liquid crystal display device and the control substrate. An intercom apparatus characterized in that a display device and the control substrate are electrically connected.

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