JPH10145471A - Doorphone device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent the generation of electric trouble by providing a speaker, microphone and printed circuit board for controlling them inside the main body of doorphone device to be installed outdoors and covering the printed circuit board with a bedewing prevention material. SOLUTION: Concerning a video doorphone hand set (doorphone device) 1 with camera, a case (main body of doorphone device) 2 is composed of a cover case 3 and a body case 4 and a speaker 9 for outputting the voice of resident, microphone 10 for picking up the voice of visitor and printed circuit board 6 or the like are arranged inside the case 2. Besides, the body case 4 is provided with a camera lens 8 for picking up the image of visitor and the printed circuit board 6 for contorlling the speaker 9 and microphone 10 or the like is mounted through an attachment frame 13. The printed circuit board 6 is respectively connected through lead wires 12a and 12b to the microphone 10 and speaker 9 and the entire surface of the printed circuit board 6 is coated with urethane resin 7 of bedewing prevention material so as to cover electronic parts mounted on the printed circuit board 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom apparatus, and more particularly to a camera intercom apparatus with a television monitor and an intercom apparatus with a television monitor for communicating between a visitor and a resident.

[0002]

2. Description of the Related Art In general, an intercom apparatus with a television monitor for making a call between a visitor and a resident has a
It consists of an intercom master unit with a TV monitor installed in the living room of a house and a TV door phone slave unit with a camera installed at the entrance of the house.

[0003] The above-mentioned camera-equipped intercom apparatus with a television monitor intercom apparatus has a cover case, which is a plastic molded article having a speaker, a microphone, etc., for communicating with the intercom master apparatus with a television monitor. It is composed of a body case which is a plastic molded product having a printed board for controlling the operation and the like, and a base frame which is a mounting frame attached to a peripheral side surface of the body case. The cover case and the body case are joined to each other so as to oppose each other to constitute a case in which the speaker, the microphone, the printed circuit board, a camera described later, and the like are built.

[0004] The cover case is provided with a speaker for outputting the voice of a resident, a microphone for picking up the voice of the visitor, and a push button switch for sounding a chime to notify the visitor.

[0005] A portion of the cover case located in front of the speaker is provided with a plurality of slit holes for emitting a resident's voice or the like to the outside, and a portion located in front of the microphone is visited. A slit hole is provided for inputting a voice or the like of the user to the microphone without attenuation.

The body case has a camera for capturing an image of a visitor, and a printed circuit board for controlling the speaker, microphone, push button switch, and the like is built in with screws or the like. Further, the speaker and the microphone are electrically connected to the printed circuit board by lead wires.

[0007]

However, the above-mentioned conventional TV door phone with a camera as described above has the following problems.

[0008] That is, a TV intercom with a camera is often installed outdoors, such as at a front door, and the ambient temperature changes greatly. Therefore, dew condensation occurs inside the case composed of the cover case and the body case. May occur. As a result, moisture adheres to a printed circuit board, a microphone, or the like, and the moisture causes a short circuit, corrosion, or disconnection of the control circuit, and an electrical failure such as a call failure or a call failure may occur. .

Further, in a conventional TV door phone with a camera, the working time can be shortened and the work efficiency can be reduced when assembling the TV door with a camera, and further, the lead wire of the microphone can be routed when assembling the microphone. However, there has been a problem of improving workability and cost reduction by reducing lead wire breakage.

The present invention has been made in view of the above problems, and has as its object to provide a door phone apparatus that can reliably prevent an electrical failure from occurring, and further provide a door phone apparatus that can reduce costs.

[0011]

According to a first aspect of the present invention, there is provided a door phone apparatus, wherein a speaker, a microphone, and a print for controlling the speaker and the microphone are provided in the door phone apparatus body. And a first dew condensation preventing material for covering the printed circuit board in a door phone apparatus installed outdoors.

According to a second aspect of the present invention, there is provided the intercom apparatus according to the first aspect, further comprising a lead wire for connecting the printed circuit board and the microphone.
A second covering a connection between the lead wire and the microphone;
A dew condensation preventing means is provided.

Further, in the door phone apparatus according to a third aspect of the present invention, in the door phone apparatus according to the first or second embodiment, the printed circuit board and / or the microphone are fixed in the door phone apparatus main body with the dew condensation preventing material. It is characterized by the following.

According to the above configuration, the doorphone device according to the first aspect of the present invention is provided with the first dew condensation preventing material for covering the printed circuit board. Therefore, the doorphone device is generated in the doorphone device main body when the outside air temperature decreases. Condensation occurs not on the surface of the printed circuit board but on the surface of the first dew condensation preventing means. Accordingly, it is possible to reliably prevent moisture from adhering to the printed circuit board, and it is possible to reliably prevent the control circuit mounted on the printed circuit board from being short-circuited, corroded, or disconnected by the water.

The door phone apparatus according to a second aspect of the present invention includes a lead wire for connecting the printed circuit board and the microphone, and a second dew condensation preventing means for covering a connection portion between the lead wire and the microphone. Therefore, when the outside air temperature drops, the dew condensation that occurs in the doorphone device main body will not be formed on the surface of the connecting portion between the lead wire and the microphone, but will be formed on the surface of the second dew prevention unit. Moisture can be reliably prevented from adhering to the connection between the lead wire and the microphone, and short-circuiting, corrosion, and disconnection of the connection between the lead wire and the microphone due to the water can be reliably prevented. Can be.
Further, the connecting portion between the lead wire and the microphone can be fixed, and the lead wire can be drawn out in a constant direction, so that the efficiency of assembly work can be improved.

Further, in the door phone apparatus according to the third aspect of the present invention, the printed circuit board and / or the microphone is fixed in the door phone apparatus main body by the dew condensation preventing material. The screws and the like used for fixing the fins can be eliminated, and the assembling work efficiency can be improved.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an intercom apparatus according to an embodiment of the present invention will be described with reference to the drawings.

First, a camera-equipped TV doorphone handset according to a first embodiment of the present invention will be described. FIG. 1 is a cross-sectional view showing a configuration of a TV door phone handset with a camera according to the first embodiment of the present invention.

The TV intercom slave unit with a camera according to the present embodiment is installed outdoors such as at the entrance of a house, and an intercom master unit with a TV monitor is installed in a living room of a house. What is done.

As shown in the figure, a TV door phone handset 1 with a camera according to the present embodiment has a case 2 composed of a cover case 3 and a body case 4, and a speaker 9, a microphone 10 and a The printed circuit board 6 and the like are provided.

The cover case 3 is provided with the speaker 9 for outputting the voice of the resident and the microphone 10 for picking up the voice of the visitor. In addition, a plurality of slit holes 11 a for emitting a resident's voice and the like to the outside are provided in a portion of the cover case 3 located in front of the speaker 9, and a plurality of slit holes 11 a are provided in front of the microphone 10 in the cover case 3. A slit hole 11b is provided in a portion located in order to input a voice or the like of a visitor to the microphone 10 without attenuation, and a portion located in front of a camera lens 8 described later of the cover case 3 is provided for a visitor. A perspective window (not shown) for capturing an image is provided.

Further, the body case 4 has a camera lens 8 for capturing an image of a visitor, and the printed circuit board 6 for controlling the speaker 9, the microphone 10, and the like.
Are mounted with screws or the like via the mounting frame 13. A base frame 5 is fixed to a peripheral side surface of the body case 4, and the base frame 5 fixes the case 2 to a wall surface.

The printed circuit board 6 has lead wires 12a and 12a connected to the microphone 10 and the speaker 9, respectively.
b, and electrically connected to the intercom master unit with a television monitor (not shown).

Reference numeral 7 denotes a urethane resin as a dew-prevention material, which is applied to the entire surface of the printed circuit board 6 so as to cover electronic components mounted on the printed circuit board 6. However, moving parts such as switches and the surface of the camera lens 8 are not covered.

With such a configuration, the printed circuit board 6 is a dew-preventing material even if dew condensation occurs inside the case 2 due to a decrease in outside air temperature where the camera-equipped TV doorphone handset 1 is installed. Since it is covered with the urethane resin 7, the dew water does not adhere to the surface of the printed circuit board 6, but adheres to the surface of the urethane 7.

Accordingly, it is possible to reliably prevent the dew water from adhering to the printed circuit board 6, and to prevent the electronic components and the like mounted on the printed circuit board 6 from being short-circuited, corroded, and disconnected by the dew water. It can be reliably prevented. Therefore, it is possible to reliably prevent an electrical failure such as a call failure or a call failure due to condensation on the printed circuit board 6.

Next, a camera-equipped TV doorphone handset according to a second embodiment of the present invention will be described. FIG. 2 is a cross-sectional view showing a configuration of a TV door phone handset with a camera according to the second embodiment of the present invention. In the present embodiment, only points different from the above-described first embodiment will be described.

As shown in the figure, in the television door phone with a camera according to the present embodiment, the printed circuit board 6 is disposed in the body case 4 via the mounting frame 13, and the printed circuit board 6 is formed of a dew condensation preventing material from above. By covering with a certain urethane resin 7, the printed circuit board 6 is mounted on the body case 4 with only the urethane resin 7.

With this configuration, the mounting of the printed circuit board 6 to the body case 4 does not require the use of screws or the like as in the above-described first embodiment, and is a dew condensation preventing material. Since the drying time of the urethane resin 7 includes the work of attaching the body case 4 and the printed circuit board 6, there is an effect of reducing the assembly work time and the cost. Further, similarly to the first embodiment described above, it is possible to reliably prevent an electrical failure such as a call failure or a call failure due to dew condensation on the printed circuit board 6.

Next, a TV door phone with a camera according to a third embodiment of the present invention will be described. FIG. 3 is a cross-sectional view showing a configuration of a TV door phone with a camera according to a third embodiment of the present invention, and FIG. 4 is a side view showing a connection portion between a microphone and a lead wire. In the present embodiment, only points different from the above-described first embodiment will be described.

As shown in FIG. 3, the camera-equipped TV doorphone handset according to the present embodiment extends the mounting frame 15 of the microphone 10 provided integrally with the cover case 3 so as to cover the microphone 10. After the microphone 10 is inserted into the mounting frame 15, the microphone 10 is mounted on the cover case 3 by covering the microphone 10 with urethane resin 7 as a dew condensation preventing material from above.

With this configuration, the microphone 10 can be securely fixed to the cover case 3 with the urethane resin 7, and the mounting portion (microphone) of the lead wire 12a at the rear of the microphone 10 shown in FIG. 10 and the lead wire 12a) can be fixed so as not to be disconnected during the assembly operation. Further, in order to ensure the wiring of the lead wire 12a in the case 2 during the assembling work, the lead wire 12a can be drawn out in a fixed direction. Therefore, the efficiency of the assembly work can be improved, and the cost can be reduced. In FIG. 4, reference numeral 16 denotes a copper core of the lead wire 12a, and reference numeral 17 denotes a solder portion.

Also, even if the outside air temperature where the camera-equipped TV doorphone handset is installed drops and dew forms inside the case 2, the rear part of the microphone 10 is covered with urethane resin 7 which is a dew-prevention material. Therefore, dew water does not adhere to the surface of the connection between the microphone 10 and the lead wire 12a, but adheres to the surface of the urethane 7. Thereby, it is possible to reliably prevent the dew water from adhering to the printed circuit board 6, and to surely prevent the connection between the microphone 10 and the lead wire 12a from being short-circuited, corroded, or disconnected by the dew water. can do. Therefore, it is possible to reliably prevent an electrical failure such as a call failure or a call failure due to dew condensation at a connection portion between the microphone 10 and the lead wire 12a.

Next, a TV door phone with a camera according to a fourth embodiment of the present invention will be described. FIG. 5 is a cross-sectional view showing a configuration of a television door phone with a camera according to a fourth embodiment of the present invention. In the present embodiment, only points different from the above-described second embodiment will be described.

As shown in the figure, in the camera-equipped TV doorphone handset according to the present embodiment, similarly to the printed circuit board 6, the rear part of the microphone 10 is disposed in the body case 4 via the mounting frame 14. The microphone 10 is mounted on the body case 4 with only the urethane resin 7 by covering the rear portion of the microphone 10 with the urethane resin 7 as a dew condensation preventing material from above.

By adopting such a configuration, the microphone 10 can be easily attached, fixed to prevent the lead wire 12a from being disconnected, and the lead wire 12a can be drawn out in a fixed direction. Work efficiency can be improved,
Cost can be reduced.

Also, even if dew condensation occurs inside the case 2, since the rear part of the microphone 10 is covered with the urethane resin 7 which is a dew-preventing material, the surface of the connection between the microphone 10 and the lead wire 12a is formed. Does not adhere to the surface of the urethane 7 but to the surface of the urethane 7. Thereby, it is possible to reliably prevent the dew water from adhering to the connection part between the microphone 10 and the lead wire 12a, and the dew water may short-circuit or corrode the connection part between the microphone 10 and the lead wire 12a. Disconnection can be reliably prevented. Therefore, it is possible to reliably prevent an electrical failure such as a call failure or a call failure due to dew condensation at a connection portion between the microphone 10 and the lead wire 12a.

[0038]

As described above, according to the first aspect of the present invention,
According to the doorphone device described above, since the first dew condensation preventing material covering the printed circuit board is provided, when the outside air temperature decreases, dew condensation occurs on the surface of the first dew condensation preventing means, and the printed circuit board has It is possible to reliably prevent the control circuit mounted on the printed circuit board from being short-circuited, corroded, or disconnected due to the adhesion of moisture.
Therefore, it is possible to reliably prevent an electrical failure such as a call failure or a call failure due to condensation on the printed circuit board.

The door phone apparatus according to a second aspect of the present invention includes a lead wire for connecting the printed circuit board and the microphone, and a second dew condensation preventing means for covering a connection portion between the lead wire and the microphone. Therefore, when the outside air temperature drops, dew condensation occurs on the surface of the second dew condensation preventing means, moisture adheres to the connection between the lead wire and the microphone, and the moisture causes the lead wire and the microphone to be connected to each other. It is possible to reliably prevent short-circuit, corrosion, and disconnection of the connection part of the first embodiment. Therefore, it is possible to reliably prevent an electrical failure such as a call failure or a call failure due to dew condensation at the connection between the lead wire and the microphone. Further, the connecting portion between the lead wire and the microphone can be fixed, and the lead wire can be drawn out in a fixed direction. As a result, the efficiency of assembly work can be improved and the cost can be reduced.

Further, in the door phone apparatus according to the third aspect of the present invention, the printed circuit board and / or the microphone is fixed in the door phone apparatus main body with the dew condensation preventing material. Screws and the like used for fixing the components can be eliminated, and the assembling work efficiency can be improved. Therefore, cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a door phone device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a configuration of a door phone device according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a configuration of a door phone device according to a third embodiment of the present invention.

FIG. 4 is a side view showing a connection portion between a microphone and a lead wire.

FIG. 5 is a cross-sectional view illustrating a configuration of a door phone device according to a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 TV door phone handset with a camera (door phone device) 2 Case (door phone device main body) 3 Cover case 4 Body case 5 Base frame 6 Printed circuit board 7 Urethane resin (condensation prevention material) 8 Camera lens 9 Speaker 10 Microphone 11a, 11b Slit hole 12a, 12b Lead wire 13, 14, 15 Mounting frame 16 Copper core of lead wire 17 Solder part

Claims (3)

[Claims] 1. A speaker in a door phone device main body,
A doorphone device comprising: a microphone; a printed circuit board for controlling the speaker, the microphone, and the like; and a doorphone device installed outdoors, wherein a first dew condensation preventing material for covering the printed circuit board is provided. 2. The door phone according to claim 1, further comprising a lead wire for connecting the printed circuit board and the microphone, and a second dew condensation preventing means for covering a connection portion between the lead wire and the microphone. apparatus. 3. The intercom apparatus according to claim 1, wherein the printed circuit board and / or the microphone are fixed in the intercom apparatus body with the dew condensation preventing material.