JP7166148B2 - intercom equipment - Google Patents

Description

The present invention relates to an intercom device such as an intercom slave unit installed on the wall of an entrance, for example.

A typical intercom device incorporates a control board for controlling a call operation with another intercom device, an imaging operation by a camera, and the like. Therefore, it is desirable that the interphone device be provided with a heat radiating member for dissipating the heat generated from the control board.

JP 2015-106736 A

The intercom device is often installed on the wall surface of the entrance or living room, and sometimes the main body case is embedded in the wall surface. Therefore, if the heat is radiated from the back and sides of the main body case, the heat will be trapped around the main body case, and there is a possibility that the temperature rise inside the main body case cannot be suppressed as expected.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an interphone device capable of reliably suppressing the temperature rise in the main body case.

In order to achieve the above object, the present invention provides an interphone device having a control board built into a body case, in which a heat radiation opening is formed in the front surface of the body case, and the control board is located inside the body case. A metal radiator plate is provided for directly or indirectly dissipating heat from the control board, and the edge of the radiator plate is bent forward so that the tip of the edge is exposed in the opening for heat dissipation. and the heat radiation opening is covered with an insulating sheet attached to the front surface of the main body case .

According to the present invention, a heat radiation opening is provided in the front surface of the body case, and a metal heat radiation plate is provided in the body case for directly or indirectly radiating the heat of the control board from the control board. The edge of the plate is bent forward to expose the tip of the edge in the opening for heat dissipation. Therefore, the heat generated from the control board can be released to the front of the main body case. Therefore, even if the main body case is buried in the wall surface, the heat released from the main body case will not be trapped around the main body case, and the temperature inside the main body case will surely rise. can be suppressed.

FIG. 4 is an explanatory diagram showing the intercom cordless handset from the front; It is an explanatory view showing the intercom cordless handset from the side. FIG. 4 is an explanatory diagram showing the intercom slave unit from the front with the decorative panel removed; Fig. 2 is a perspective explanatory view showing the intercom slave unit in a disassembled state from the front side; Fig. 2 is a perspective explanatory view showing the intercom slave unit in a disassembled state from the rear side; FIG. 4 is an explanatory diagram showing a horizontal cross section of the intercom slave unit in the call button portion from below; FIG. 4 is an explanatory diagram showing a horizontal cross-section of the intercom slave unit in the heat sink portion from below;

An interphone slave unit according to an embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is an explanatory diagram showing the intercom cordless handset 1 from the front. FIG. 2 is an explanatory view showing the intercom cordless handset 1 from the side. FIG. 3 is an explanatory diagram showing the intercom slave unit 1 from the front with the decorative panel 10 removed. FIG. 4 is a perspective explanatory view showing the intercom slave unit 1 in a disassembled state from the front side. FIG. 5 is a perspective explanatory view showing the intercom slave unit 1 in a disassembled state from the rear side. FIG. 6 is an explanatory diagram showing a horizontal cross section of the intercom slave unit 1 at the call button 7 portion from below. FIG. 7 is an explanatory diagram showing a horizontal cross section of the intercom slave unit 1 at the radiator plate 41 portion from below.

The intercom slave unit 1 has a main body case composed of a front case 2 arranged on the front side and a rear case 3 assembled to the rear side of the front case 2. - 特許庁A microphone section 6 and a speaker section 8 for making calls are provided on the upper front portion of the main body case, while a call button 7 is provided on the lower right portion of the front surface to be operated when a visitor calls a resident. It is Such intercom slave unit 1 is installed on the wall surface of the entrance of the dwelling unit, and when the call button 7 is pushed by the visitor, the intercom master unit (not shown) installed in the dwelling unit is operated. ). Further, when a response operation is performed on the side of the intercom master unit, communication with the intercom master unit becomes possible. A metal decorative panel 10 is attached so as to cover the front surface of the main body case while exposing the microphone section 6, the speaker section 8, the call button 7, and the like.

The call button 7 has a disk-shaped operation portion 11 whose front surface serves as an operation surface, an operation projection 12 projecting rearward from the center of the operation portion 11, and an operation portion 11 extending rearward from the outer peripheral edge of the operation portion 11. It has a peripheral wall portion 13 and a flange portion 14 projecting radially outward from the rear end of the peripheral wall portion 13 . On the other hand, the front surface of the front case 2 is provided with a recess 21 that is recessed rearward, and an operation hole 22 is formed in the recess 21 for the operation projection 12 to pass through. A cylindrical portion 25 protruding forward is provided along the opening edge of the operation hole 22, and a housing portion 24 recessed further rearward is provided around the cylindrical portion 25. Using the portion 24 and the cylindrical portion 25, a coil spring 23 that holds the call button 7 while urging it toward the initial position can be attached. In addition, a clamping plate 27 having an insertion hole 26 through which the operation portion 11 and the peripheral wall portion 13 can be inserted can be attached to the front case 2 so as to cover the recess 21 from the front.

On the other hand, on the rear surface of the front case 2 , a rearward projecting flange 28 is provided so as to be concentric with the operation hole 22 and surround the operation hole 22 . Further, on the rear surface of the front case 2, various substrates such as a substrate 30a on which a switch 29 is mounted and a main substrate 30b for controlling main operations of the intercom slave unit 1 (for example, communication operations with the intercom master unit). is arranged on the front surface, and the switch 29 is exposed at the center of the operation hole 22 when the switch 29 is assembled to the front case 2 . A waterproof member 32 is attached between the front case 2 and the substrate member 31 at the position of the switch 29 .

The waterproof member 32 is a member made of rubber (for example, silicon rubber), and includes a cylindrical main body 33 whose inner diameter is approximately the same as the diameter at the position of the flange 28, a fitting portion 34 provided in the main body 33, and a It has an elastic portion 35 that connects the main body 33 and the fitting portion 34 . The fitting portion 34 is formed in a bottomed cylindrical shape (a cylindrical shape with an open front side and a closed rear side) into which the operation projection 12 can be fitted from the front side, and is concentric with the main body 33 and has a rear end. is positioned forward of the rear end of the main body 33 . The elastic portion 35 is elastically deformable and thin, and is provided so as to close the space between the inner peripheral surface of the main body 33 and the outer peripheral surface of the fitting portion 34 .

When attaching the waterproof member 32, the flange 28 is positioned inside the main body 33 to surround the flange 28 from the outside, and the front end of the main body 33 is brought into contact with the inner surface of the front case 2 (rear surface of the front case 2). A waterproof member 32 is arranged. Then, by assembling the substrate member 31 to the rear surface side of the front case 2, the waterproof member 32 can be mounted in the main body case while being sandwiched between the front case 2 and the substrate member 31 from the front and rear. In this attached state, the main body 33 , the fitting portion 34 and the elastic portion 35 completely separate the space on the front side and the space on the rear side of the waterproof member 32 . The insertion portion 34 is located in front of the switch 29, and when the call button 7 is pressed, the elastic portion 35 deforms and the insertion portion 34 moves rearward, turning the switch 29 on at its rear end. /OFF operation. When the push operation on the call button 7 is released, the call button 7 is returned to the initial position before the push operation by the elastic force of the coil spring 23, and the insertion portion 34 is moved to the position before the push operation by the elastic force of the elastic portion 35. return to

Also, regarding the attachment of the call button 7, it can be attached from the front side of the front case 2 after the main body case is assembled. That is, the operation projection 12 is fitted into the insertion portion 34 through the operation hole 22 while interposing the coil spring 23 . Thereafter, by inserting the operation portion 11 and the peripheral wall portion 13 into the insertion hole 26 from the front side of the call button 7 and screwing the clamping plate 27 to the front case 2, the collar portion 14 is connected to the front surface of the front case 2 and the clamping plate. 27 from the front and back, the attachment of the call button 7 is completed.

Here, the heat dissipation structure of the intercom slave unit 1, which is the essential part of the present invention, will be described.
A microphone 15 forming the microphone section 6 and a speaker 16 forming the speaker section 8 are attached to the rear surface of the front case 2 . Further, as the board member 31 is assembled to the front case 2 , the surface of the main board 31 b assumes a posture parallel to the front surface of the front case 2 . A radiator plate 41 is attached to the space between the microphone 15 and the speaker 16 and the substrate member 31 in the front-rear direction to dissipate the heat inside the main body case to the outside of the main body case. The heat sink 41 is an aluminum metal plate elongated in the left-right direction, and the left end portion thereof is bent forward. In addition, when attached to the main body case, the tip of the bent portion is exposed in the heat radiation opening 42 opened at the left end of the front surface of the front case 2 . The heat radiation opening 42 is covered with an insulating sheet (for example, PET or the like) 43 attached to the front surface of the front case 2 . A heat transfer sheet 44 is interposed between the radiator plate 41 and the substrate member 31 (especially the surface of the main substrate 30b) to efficiently transfer the heat generated in the substrate member 31 to the radiator plate 41. FIG.

According to the intercom slave unit 1 having the configuration described above, while the heat radiation opening 42 is formed in the front surface of the front case 2, the gap between the substrate member 31 and the speaker 16 in the main body case in the front-to-rear direction is provided with an end. A radiator plate 41 made of aluminum is provided with a portion bent forward, and the tip of the bent end portion of the radiator plate 41 is exposed in the opening 42 for heat dissipation. Therefore, the heat generated from the substrate member 31 can be released to the front side of the main body case. Therefore, even if the main body case is buried in the wall surface, the heat released from the main body case will not be trapped around the main body case, and the temperature inside the main body case will surely rise. can be suppressed.

In the main body case, a cylindrical main body 33 surrounding the operation hole 22, a bottomed cylindrical fitting part 34 located in the main body 33 and into which the tip of the operation projection 12 is fitted from the front side, and an elastically deformable A rubber waterproof member 32 formed thin and having an elastic portion 35 for closing the space between the inner peripheral surface of the main body 33 and the outer peripheral surface of the fitting portion 34 is attached to the inner surface of the front case 2 at the front end of the main body 33 . It is provided in a contacting state. When the call button 7 is pressed, the insertion portion 34 is moved rearward, and the switch 29 is operated by the rear end of the insertion portion 34.例文帳に追加Therefore, with respect to the surroundings of the call button 7, the main body 33, the insertion portion 34, and the elastic portion 35 completely partition the space in front of the waterproof member 32 and the space behind the waterproof member 32, so that the water resistance is superior to that of the conventional one. It can be an intercom cordless handset 1.

It should be noted that the interphone device according to the present invention is by no means limited to the aspects of the above-described embodiments, and not only the overall configuration of the intercom device but also the configuration related to the waterproof member and the like do not depart from the gist of the present invention. It can be changed as appropriate within the range.

For example, in the above embodiment, the main body of the waterproof member is cylindrical, but it can be molded into a rectangular tube shape without any problem, and an interphone device is configured by providing a plurality of buttons and waterproof members for one main body case. It is of course possible to do so.
In addition, in the above-described embodiment, the configuration is adopted in which the heat of the control board is indirectly radiated by the heat sink by interposing the heat transfer sheet. It is also possible to employ a configuration in which the heat is directly radiated by a radiator plate.
Furthermore, in the above embodiment, the main case is constructed by assembling the front case and the rear case, but there is no problem even if the main case is constructed by assembling three or more case members.
In addition, in the above embodiment, an intercom slave unit is described, but other intercom equipment such as an intercom master unit installed in a living room, for example, may be used.

1 Intercom cordless handset (interphone device), 2 Front case (main body case), 3 Rear case (main body case), 7 Call button, 11 Operation part, 12 Operation projection, 22 Operation hole 29 Switch 30b Main substrate (control substrate) 31 Substrate member 32 Waterproof member 33 Main body 34 Fitting portion 35 Elastic portion 41 . . Heat radiation plate, 42 .. Opening for heat radiation.

Claims (1)

An interphone device in which a control board is built in a body case,
While a heat dissipation opening is opened in the front surface of the main body case,
A metal radiator plate is provided in the main body case for directly or indirectly dissipating heat of the control board from the control board,
Furthermore, an end portion of the heat sink is bent forward, and a tip of the end portion is exposed in the heat radiation opening. An intercom device characterized by being covered with a sheet .

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