Intercom equipment

Abstract

To provide an intercom device that is equipped with an operation unit and a human sensor and can be miniaturized.SOLUTION: A board installation unit 23 is provided inside an operation unit 21 (on the rear surface of an operation surface 21A), and a sensor board 13 is installed inside the operation unit 21. Therefore, the space inside the main body case can be effectively used, an intercom handset 1 can be made smaller, and a human sensor 31 can be moved closer to the front of the main body case, thereby improving reliability of the detection operation by the human sensor 31.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to an intercom device such as an intercom slave unit that is installed on the wall of an entrance, for example. [Background technology]

[0002] Conventionally, an intercom handset, which is an example of an intercom device, has an operating unit that a visitor presses to operate, and also has a human presence sensor located in a different position from the operating unit to detect the visitor (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-82920 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the operation unit and the human sensor are provided in separate locations as described in Patent Document 1, the intercom device will become larger in size.

[0005] Therefore, the present invention has been made in consideration of the above problems, and aims to provide an intercom device that can be made smaller in size, and that is equipped with an operating unit and a human presence sensor. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides an intercom device having an operation unit that can be operated by pressing the operation unit on the front surface of a main body case, itself A sensor board equipped with a human presence sensor is installed on the rear surface of the device. According to the invention of claim 1, the operation unit itselfThe sensor board with the motion sensor mounted on it is installed on the rear surface of the device, which allows for effective use of the space inside the main body case and contributes to the miniaturization of the intercom device. In addition, the motion sensor can be placed closer to the front of the main body case, improving the reliability of the motion sensor's detection operation.

[0007] The invention described in claim 2 is characterized in that, in the invention described in claim 1, an LED is mounted on the sensor board, and a light-guiding section is provided in front of the LED in the operating section to guide light emitted by the LED to the front of the main body case. According to the invention described in claim 2, an LED is mounted on the sensor board, and a light-guiding section that guides the light emitted by the LED to the front of the main body case is provided in a position in front of the LED in the operating section, thereby enabling more effective use of the space within the main body case.In addition, even if other light-emitting elements such as call indicator lights are installed in other positions on the main body case, the light emitted by those light-emitting elements is less likely to interfere with the light emitted by the LED, and the light emitted by the LED is less likely to become blurred. [Effects of the Invention]

[0008] According to the present invention, the operation unit itself The sensor board with the motion sensor mounted on it is installed on the rear surface of the device, which allows for effective use of the space inside the main body case and contributes to the miniaturization of the intercom device. In addition, the motion sensor can be placed closer to the front of the main body case, improving the reliability of the motion sensor's detection operation. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a perspective explanatory view showing the intercom handset from the front side. [Figure 2] FIG. 2 is a perspective explanatory view showing the intercom handset in a disassembled state from the front side. [Figure 3] FIG. 2 is a perspective explanatory view showing the intercom handset in a disassembled state from the rear side. [Figure 4]FIG. 2 is a perspective explanatory view showing an operation member and a sensor board from the front side. [Figure 5] FIG. 4 is a perspective explanatory view showing the operating member from the rear side. [Figure 6] 1A and 1B are explanatory perspective views showing the mounting frame, in which FIG. 1A shows the mounting frame from the front side and FIG. 1B shows the mounting frame from the rear side. [Figure 7] 10 is an explanatory diagram showing a vertical cross section of a portion near a calling unit of the intercom slave unit. FIG. [Figure 8] FIG. 10 is a perspective explanatory view showing a state in which the sensor board is attached to the operation member. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An intercom slave unit according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0011] FIG. 1 is an explanatory perspective view of the intercom handset 1 shown from the front side. FIG. 2 is an explanatory perspective view of the intercom handset 1 in a disassembled state shown from the front side. FIG. 3 is an explanatory perspective view of the intercom handset 1 in a disassembled state shown from the rear side. FIG. 4 is an explanatory perspective view of the operating member 11 and sensor board 13 shown from the front side. FIG. 5 is an explanatory perspective view of the operating member 11 shown from the rear side. FIG. 6 is an explanatory perspective view of the mounting frame 14, with (a) shown from the front side and (b) shown from the rear side. FIG. 7 is an explanatory diagram showing a vertical cross section of a portion near the calling unit 10 of the intercom handset 1. FIG. 8 is an explanatory perspective view showing the sensor board 13 attached to the operating member 11.

[0012] Intercom handset 1 comprises a main body case composed of front case 2 disposed at the front and rear case 3 attached to the rear side of front case 2, and a decorative cover 4 attached to the front of the main body case. A lens 9A of camera 9 is exposed at the top front of the main body case, forming an imaging unit 5 for capturing images of the surroundings. A microphone unit 6 for making calls is provided to the right of imaging unit 5. A calling unit 10 is provided below imaging unit 5 so that visitors can call the resident, and a speaker unit 7 for making calls, including a speaker 8 built into the main body case, is provided further below calling unit 10. Intercom handset 1 is installed on the wall of the entrance of a dwelling unit, and when a visitor holds their hand over or presses calling unit 10, imaging unit 5 is activated to begin capturing images of the surroundings, including the visitor, and calls an intercom master unit (not shown) installed in the dwelling unit.

[0013] Here, the calling section 10 of the intercom slave unit 1, which is the main part of the present invention, will be described. The calling unit 10 comprises an operating member 11, a sensor board 13 installed inside the operating member 11, a mounting frame 14 for mounting the operating member 11 to the inner surface of the front case 2, and a main board 15 arranged behind the mounting frame 14.

[0014] The operating member 11 has an operating section 21 that can be pressed by a visitor and an elastic section 22 that extends downward from the operating section 21. The operating section 21 is molded like a cover that opens to the rear, with a disk-shaped front surface and a peripheral wall section that extends rearward from the periphery of the front surface. A synthetic resin panel is attached to the front surface, forming an operating surface 21A that is operated by a visitor. A flange section 21B extends radially outward from the rear end of the peripheral wall section, and a waterproof wall 21C extends forward from the tip of the flange section 21B. The rear surface of the operating surface 21A (inside the operating section 21) is provided with a board installation section 23 for installing the sensor board 13, as well as an operating protrusion 24 that protrudes rearward. The board installation portion 23 is shaped like an elastic claw that extends rearward from the rear surface of the operation surface 21A and then bends back forward, allowing the sensor board 13 to be sandwiched and installed between the tip of the board installation portion 23 and the rear surface of the operation surface 21A. Furthermore, the front surface of the operation unit 21 is provided with a light guide portion 25 for guiding forward light emitted from the LED 30 mounted on the sensor board 13, and a sensor window 26 for exposing the human presence sensor 31 mounted on the sensor board 13. Meanwhile, the elastic portion 22 is made up of a pair of left and right tongue pieces extending downward from the operation unit 21, and the lower ends of the tongues are provided with elastic support portions 27 that serve as fulcrums when the operation member 11 is pressed in.

[0015] The sensor board 13 is smaller than the operation unit 21 of the operation member 11, and is equipped on its front surface with a motion sensor 31 for detecting when a visitor places their hand in front of the operation surface 21A, and an LED 30 for indicating the status of the intercom handset 1 (e.g., whether the intercom handset 1 is in a calling operation or whether the motion sensor 31 is not functioning properly). The sensor board 13 is installed in the operation unit 21 with the LED 30 positioned behind the light guide 25 and the motion sensor 31 positioned within the sensor window 26. The main board 15 controls the main operations of the intercom handset 1 (e.g., operations related to calls with the intercom master unit), and is equipped on the front surface of the main board 15 with a switch 29 that is operated by an operation protrusion 24 when the operation member 11 is pressed. The sensor board 13 is electrically connected to the main board 15.

[0016] The mounting frame 14 is a synthetic resin frame body that is screwed to the rear surface of the front plate of the front case 2. A clamping portion 32 is provided in the approximate center in the vertical direction. When the mounting frame 14 is screwed to the front case 2, the clamping portion 32 abuts against the elastic support portion 27 of the operating member 11 from the rear side, sandwiching the elastic support portion 27 between the front plate of the front case 2 and the front plate of the front case 2. A recessed portion recessed rearward is provided above the clamping portion 32, and the space within this recess serves as a storage space 33 that allows the operating member 21 to be pushed rearward. A switch window 34 is provided within the storage space 33, allowing the operating protrusion 24 of the operating member 11 to protrude rearward from the mounting frame 14. Speaker grilles 35, 35... are provided below the clamping portion 32, and both the left and right sides of the speaker grilles 35, 35... protrude forward. When the mounting frame 14 is screwed to the front case 2, an alarm space 37 is formed in front of the speaker grilles 35, 35... A speaker mounting portion 36 for mounting the speakers 8 is provided on the rear surface of the mounting frame 14 so as to surround the speaker grilles 35, 35.... A frame waterproof rib 38 that protrudes forward is provided within the accommodation space 33, and the frame waterproof rib 38 covers the upper part of a portion of the speaker grilles 35, 35....

[0017] Meanwhile, an operation window 40 is provided on the front plate of the front case 2 as a mounting structure for mounting the operation member 11, exposing the operation surface 21A of the operation unit 21. A rearward-protruding case waterproof rib 41 extends along the periphery of the operation window 40 on the rear surface of the front plate of the front case 2, and a button mounting rib 42 for positioning the operation member 11 protrudes rearward further outward from the case waterproof rib 41. When the operation member 11 is mounted to the front case 2, the operation member 11 is positioned inside the button mounting rib 42, and the tip of the waterproof wall 21C of the operation member 11 abuts against the rear surface of the front plate of the front case 2 between the button mounting rib 42 and the case waterproof rib 41, and the tip of the case waterproof rib 41 abuts against the front surface of the flange 21B of the operation member 11. Reference numeral 43 denotes a support rib that supports the elastic support portion 27 of the operation member 11 from below.

[0018] In the intercom handset 1 described above, when a visitor presses operation unit 21 (performs a calling operation) at calling unit 10, elastic portion 22 bends, moving operation unit 21 toward the inside of the main body case, and operation protrusion 24 operates switch 29. Therefore, in response to the calling operation, main board 15 performs a calling operation to call the intercom master unit in the same manner as in the past. Meanwhile, in intercom handset 1, when a visitor holds their hand in front of operation unit 21 at calling unit 10 for a predetermined period of time (for example, two seconds), and the visitor is detected by human presence sensor 31, main board 15 performs a calling operation to call the intercom master unit, just as when operation unit 21 is pressed.

[0019] In the intercom handset 1 having the above configuration, the sensor board 13 on which the motion sensor 31 is mounted is installed so that the motion sensor 31 faces the front of the main body case, and the main board 15 executes a calling operation in response to the detection operation of the motion sensor 31. Therefore, for example, a visitor can call a resident without touching the intercom handset 1 by simply holding their hand in front of the operation unit 21 for a predetermined period of time (for example, two seconds). Furthermore, as with conventional intercom handset 1, the calling operation can also be executed by pressing the operation unit 21, so that the intercom handset 1 can be used even if there is a malfunction in the motion sensor 31, making it easy to use.

[0020] Furthermore, board installation section 23 is provided within operation section 21 (on the rear surface of operation surface 21A), and sensor board 13 is installed within operation section 21. Therefore, the space within the main body case can be used effectively, intercom handset 1 can be made smaller, and human presence sensor 31 can be brought closer to the front of the main body case, improving the reliability of the sensing operation of human presence sensor 31. Furthermore, since the LED 30 that indicates the status of the intercom handset 1 is also mounted on the sensor board 13, even if other light-emitting elements such as call indicator lights are installed in other locations on the main body case, the light emitted by those light-emitting elements is less likely to interfere with the light emitted by the LED 30, and the light emitted by the LED 30 is less likely to become blurred.

[0021] In addition, when the operating member 11 is attached to the front case 2, the operating member 11 is positioned inside the button mounting rib 42, and the tip of the waterproof wall 21C of the operating member 11 abuts against the rear surface of the front plate of the front case 2 between the button mounting rib 42 and the case waterproof rib 41, and the tip of the case waterproof rib 41 abuts against the front surface of the flange 21B of the operating member 11. Therefore, water is less likely to seep into the main body case from around the operating member 21, making the intercom handset 1 highly waterproof.

[0022] The intercom device of the present invention is not limited to the above-described embodiment, and the overall configuration of the intercom device as well as the configuration around the calling unit can be modified as needed within the scope of the present invention.

[0023] For example, in the above embodiment, the sensor board is installed in the so-called call button, but the sensor board may also be installed in the operation unit for setting functions, and the design of the operation unit in which the sensor board is installed can be changed as appropriate. In addition, in the above embodiment, an LED that notifies the status of the intercom handset is mounted on the sensor board, but there is no problem if the LED mounted on the sensor board is another LED such as an LED for night lighting. Furthermore, although the above embodiment describes an intercom handset, the present invention can also be suitably adopted for other intercom devices, such as an intercom master unit installed in a living room, as long as an operating section that can be operated by pressing is provided on the front of the main body case. [Explanation of symbols]

[0024] 1··Intercom handset (intercom device), 2··Front case (main body case), 3··Rear case (main body case), 10··Call section, 11··Operation member, 13··Sensor board, 14··Mounting frame, 21··Operation section, 22··Elastic section, 23··Board installation section, 24··Operation protrusion, 30··LED, 31··Human presence sensor.

Claims

1. An intercom device having an operation unit that can be operated by pressing it on the front surface of a main body case, An intercom device characterized in that a sensor board equipped with a human presence sensor is installed on the rear surface of the operation unit itself.

2. An LED is mounted on the sensor substrate, 2. The intercom device according to claim 1, wherein a light guide portion for guiding light emitted by the LED toward the front of the main body case is provided in a position in front of the LED in the operation portion.

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