JP4575974B2 - Communication device - Google Patents

Description

  The present invention relates to a communication apparatus that can be suitably implemented as a telephone that can be connected to a communication line network such as the Internet using a communication system based on a communication protocol such as xDSL (x Digital Subscriber Line).

DSL (Digital Subscriber) for high-speed data communication using an existing public telephone network
Line) technology is being developed. This DSL technology includes a high-speed communication system such as ADSL (Asymmetric Digital Subscriber Line) that communicates using a high frequency band that is not used for transmitting voice. It is called xDSL.

  FIG. 38 is a diagram showing an example of the configuration of communication equipment used for connecting the telephone set 501 and the personal computer 502 to the Internet. Here, a case where the telephone set 501 and the personal computer 502 are connected to the Internet using ADSL constructed using a public telephone line network between line users will be described. In recent years, due to the development of digital communication networks, packetized voice data is transmitted via the Internet using VoIP (Voice Over Internet Protocol), and the telephone on the sender side and the receiver who have established a connection via the Internet A so-called Internet telephone communication technology that enables a telephone call between side telephones has been developed.

  When the telephone 501 and the personal computer 502 are connected to the Internet using ADSL, a splitter 503, an ADSL modem 504, and a VoIP adapter 505 are required. Data coming from the Internet is transmitted to the telephone set 501 or the personal computer 502 via the modular outlet 506, the splitter 503, the ADSL modem 504, and the VoIP adapter 505. The VoIP adapter 505 is a so-called router.

  The splitter 503, the ADSL modem 504, and the VoIP adapter 505 are individually configured as independent devices. Therefore, it is necessary to connect these devices with a communication cable. For this reason, there is a problem that miswiring occurs or the installation location is limited by the length of the communication cable, and the degree of freedom in installation is low. In addition, each device needs to be individually supplied with power from a power source via an AC (Alternating Current) adapter 7. Therefore, the installation location of each device is restricted by the length of the power supply line of the AC adapter 7, which also has a problem that the degree of freedom in installation is low.

  FIG. 39 is a diagram showing another example of the configuration of equipment used for connecting the telephone set 501 and the personal computer 502 to the Internet. Here, a case where communication is performed using ADSL will be described. In order to solve the problem of the communication facility described above with reference to FIG. 37, a modem built-in router 508 that realizes the functions of the splitter 503, the ADSL modem 504, and the router 505 by a single device has been put into practical use.

  In such a communication facility, the modem built-in router 508 reduces the number of connection cables and the AC adapter 507 for connecting the above-described splitter 503, ADSL modem 504, and router 505 to each other, and the degree of freedom in installation is increased. As an improvement, when the telephone 501 and the personal computer 502 are connected to the Internet for communication, it is necessary to connect each device to the router 508 with a built-in modem by a LAN cable and a modular cable.

  Therefore, the modem built-in router 508 is not provided as a single unit, but functions such as the splitter 503, the ADSL modem 504, and the router 505 are provided in the terminal device such as the telephone 1, so that cable wiring is reduced as much as possible to save space. There is a demand for a communication device that can realize the above and improve the degree of freedom in installation.

  In order to make a telephone call using the VoIP described above, the router needs to monitor whether there is information to be received periodically. Therefore, the electronic circuit elements constituting the ADSL modem function and the router function are always in a power-on state and are in an activated state. Since such an electronic circuit element generates a large amount of heat and is accompanied by heat dissipation, the surrounding heated air is discharged outside the apparatus, and damage to the electronic circuit element due to heat is prevented.

  FIG. 40 is a diagram illustrating a configuration of a communication apparatus according to the first conventional technique. In order to eliminate the heat of the electronic circuit element accompanied by the heat generation, in the first prior art, a plurality of electronic device packages 512 which are electronic circuit devices that generate heat are housed in the internal space of the housing 511 having a substantially rectangular parallelepiped shape. An upper ventilation hole 514 is formed in the upper part 513 of the housing 511 in order to discharge high-temperature air stored in a substantially vertical direction perpendicular to the bottom of the body 511 and heated by the heat generated by the electronic device package 512. A communication device in which a lower ventilation hole 516 is formed in the lower portion 515 is well known.

  The communication device is arranged such that one rear surface portion 518 of the housing 511 in the depth direction X is in close contact with the wall surface. The upper ventilation holes 514 are located on both sides in the depth direction X perpendicular to the wall surface of the upper portion 513 of the housing 511 than the portion directly above the electronic device package 512 of the ceiling portion 517 that covers the electronic device package 512 from above. Formed on both sides 517A, 517B. Further, the lower vent hole 516 is formed in the lower portion 515 of the housing 511 at the lower portion of the front portion 519 disposed on the near side perpendicular to the wall surface in the depth direction X.

  As described above, the upper vent 514 is formed in the upper portion 513 of the housing 511 and the lower vent 516 is formed in the lower portion 515, thereby heating the electronic device package 512 with heat generated in the internal space of the housing 511. The air having a high temperature is discharged from the upper vent hole 514 to the outside, and the lower vent hole 516 takes in outside air at a normal temperature into the internal space, thereby preventing an excessive temperature rise of the electronic device package 512. (For example, refer patent document 1).

  In the second prior art, a substrate on which a heat generating electronic device is provided is arranged in the internal space of the housing with the surface of the substrate on which the electronic device is provided facing upward, and is mounted on the housing above and below the substrate. In addition to forming a vent hole, a cylindrical wall is formed surrounding the vent hole toward the substrate, and the air heated by the heat generated by the electrical equipment is guided to the cylindrical wall and released outside the housing, thereby An excessive temperature increase can be prevented (see, for example, Patent Document 2).

  In the third prior art, a board on which a plurality of electronic components are attached is attached to the connector on the bottom plate obliquely upward, and the air heated by the heat generated by one electronic component does not hit the electronic component disposed above. By doing so, it is configured so that excessive temperature rise of the electronic component can be prevented (see, for example, Patent Document 3).

JP-A-8-78872 JP-A-4-139897 Japanese Utility Model Publication No. 62-201994

  In the first prior art described above, the upper ventilation holes 514 have both large thicknesses parallel to the depth direction X of the plurality of electronic device packages 512, but both sides of the upper portion 513 of the housing 511 in the depth direction X. Therefore, the high-temperature air heated by the electronic device package 512 cannot be discharged outside the housing 511 in a short time.

  Further, since the lower vent hole 516 is formed only under the front portion 519 of the housing 511, normal temperature air cannot be allowed to flow into the housing 511 from the lower vent hole 516 in a short time.

  Therefore, high-temperature air heated by the heat generated by the electronic device package 512 stays in the internal space of the housing 511 for a long time, and the temperature rise of the electronic device package 512 cannot be sufficiently suppressed. This becomes more prominent as the amount of heat generated by the various electronic circuit elements arranged in the electronic device package 512 increases. In particular, in an electronic circuit device in which an electronic circuit element having a high heat generation temperature and a large heat dissipation amount is mounted in order to process a large amount of data at a high speed, such as the above-described VoIP adapter. Therefore, it is necessary to realize a high cooling effect with a simple configuration at a low cost and to reliably suppress the temperature rise of the electronic circuit element, and such a communication device is desired.

  In the second prior art, since the surface of the substrate on which the electronic device is provided is arranged upward, the air from the vent hole formed below the substrate is difficult to flow upward, and the temperature of the electronic device is sufficiently increased. It cannot be suppressed.

  In the third conventional technique, when the substrate is disposed in the housing, the air inside the housing is heated, and thus the temperature rise of the electronic component cannot be sufficiently suppressed.

  An object of the present invention is to provide a communication device that can realize a high cooling effect with a simple configuration and at a low cost, and can reliably suppress a temperature rise of an electronic circuit element.

In the present invention, an electronic circuit device that performs a communication operation is housed in a housing,
The electronic circuit device includes a first wiring board and a second wiring board,
Wherein the first wiring board, an electronic circuit element which generates heat is the mounting tower,
The first wiring board is disposed in the housing,
The housing includes a housing body and a back cover member that is provided on the housing body and covers the first wiring board,
The first wiring board and the back cover member are inclined from the back side toward the front as they go from below to above,
Near the bottom and top of the first wiring board in the casing and on the back side of the casing among the back cover members, the inside and outside of the casing are opposed to the first wiring board. And vents communicating with the
The second wiring board is disposed on the bottom of the casing body in the casing,
The second wiring board is formed with a mounting region where an electrical element is mounted and a non-mounting region where the electrical element is not mounted,
The non-mounting area is a communication device provided below the first wiring board .

According to the present invention, among the electronic circuit devices housed in the housing, the first wiring board on which the heat generating electronic circuit element is mounted is disposed in an inclined posture in the housing. In the vicinity of the upper portion of the first wiring board, that is, the region including the vicinity above and below the upper portion of the first wiring board, a vent hole that connects the inside and the outside of the housing is formed. The vicinity of the lower portion of the first wiring board, i.e. in a region including the vicinity of the lower and upper than the lower of the first wiring board, the ventilation hole communicating the inside and the outside of the housing is formed. As a result, large openings are formed in the casing near the upper part and the lower part of the first wiring board. Therefore, the air heated by the heat generated by the electronic circuit element is quickly discharged from the vent hole formed in the casing near the top of the first wiring board to the external space of the casing. In addition, air inside the housing is quickly exhausted to the outside of the housing, so that normal temperature air is introduced into the housing from the air holes formed in the housing near the lower portion of the first wiring board. It flows in quickly. As a result, the heated air inside the housing and the room temperature air outside the housing can be exchanged in a short time.

  Furthermore, even if the back cover member is installed toward the wall surface, a space is formed between the back cover member and the wall surface, and the vent hole provided in the back cover member can be prevented from being blocked by the wall surface. it can.

Furthermore, the present invention lower and upper first wiring board, since the ventilation holes are formed proximate to the region where the first wiring board is housed, outside the normal temperature of the air the first wiring housing Without dispersing the substrate outside the area in which the substrate is stored, the high-temperature air that is reliably guided and introduced and heated by the electronic circuit element is not dispersed in the housing from the region in which the first wiring substrate is stored. Can be released to the outside. As a result, the electronic circuit element is efficiently and reliably cooled, so that high reliability with respect to the effect of suppressing the temperature rise of the electronic circuit element can be achieved with a simple configuration and at low cost.
Furthermore, the second wiring board is disposed on the bottom of the casing body in the casing. On the second wiring board, a mounting region where the electrical element is mounted and a non-mounting region where the electrical element is not mounted are formed. The non-mounting area is provided below the first wiring board. Therefore, the mounting region is provided below the first wiring board serving as a heat generation source and at a position away from the first wiring board, so that the circuit element provided on the second wiring board malfunctions due to heat. The possibility can be reduced.

The present invention, wherein the housing includes a heating space for accommodating the first wiring board, and the other remaining space of having a partition Ri member partitions, the partition Ri member is heated from the heating space It is characterized in that the air that has been discharged is prevented from flowing into the remaining space.

According to the present invention, since the space in the housing is partitioned into the heat generating space and the remaining space by the partition member, another first wiring board in which the air heated by the heat generating electronic circuit element is provided in the remaining space It is possible to prevent the occurrence of the problem that the electronic component mounted on the other first wiring board is heated by being in contact with the heat.

In the present invention, the casing is
Including an operation unit provided with an operation member that is inclined upward as it goes from the front to the back of the housing body and is operated for communication;
The first wiring board is erected on the housing main body behind the operation unit.

According to the present invention, the operation unit is inclined upward as it goes from the front side of the housing body to the back side in a state where the communication device is arranged so that the operation unit faces the front side of the operator. A first wiring board standing on the housing body is disposed behind the operation unit, and is covered from the back side by a back cover member.

The air heated by the heat generated by the electronic circuit element in the housing moves upward from the first wiring board in the housing, so that the heated air is prevented from moving toward the operation unit. Further, the heated air is discharged to the outside of the casing from the side opposite to the place where the operator is located in order to operate the operation unit. Therefore, the air heated by the electronic circuit element flows out of the housing from a position away from the operator. This prevents the heated air from directly hitting the operator and improves safety.

The present invention, wherein the housing body, the partition Ri member is formed me rising from the bottom behind closer,
The behind the partition Ri member, the first wiring substrate is disposed,
A vent hole formed near the lower portion and near the upper portion of the first wiring board in the housing is formed in at least one of the housing body and the back cover member.

According to the present invention, the partition member is formed to rise from the bottom from behind the housing, and the first wiring board is formed behind the partition member. As a result, a heat generating space is formed on the rear side of the housing. In addition, vent holes are formed in the vicinity of the lower portion and the upper portion of the first wiring board in at least one of the housing body and the back cover member. By providing the heat generating space behind the casing, the operator can operate the communication device without worrying about the heat generated from the casing.

In the present invention, the first wiring board is housed in an electromagnetic shielding metal casing,
In this electromagnetic shielding metal casing, a plurality of through holes communicating between the inside and the outside of the casing are formed in a dotted manner.
The ratio of the opening area of the through holes per unit area of the electromagnetic field shielding metal casing is larger in the vicinity of the electronic circuit elements to the heat generation, in an off farther away position, characterized in that it is selected to be smaller.

According to the present invention, the first wiring board is housed in the electromagnetic shielding metal casing. As a result, electromagnetic waves can be prevented from entering the electronic circuit board, and electromagnetic waves can be prevented from being emitted from the electronic circuit board to the outside. Moreover, by accommodating in a metal casing, heat can be efficiently absorbed from the heated air, and the temperature near the first wiring board can be reduced.

The casing is formed with a plurality of through holes communicating with the inside and the outside of the casing, thereby blocking the electromagnetic field and allowing air flowing in from the air holes formed in the housing to flow. It can flow into the first wiring board (inside). The ratio of the opening area of the through holes per unit area in the casing is selected to be large in the vicinity of the electric circuit element that generates heat and small in the position away from the casing. As a result, a large amount of air flowing from the outside can be guided to the vicinity of the electric circuit element generating heat.

The present invention, lower portion of the electromagnetic field shielding metal casing, perpendicular to the first base in the first wiring board built, second base portion having an angle θ1 of less than 90 degrees with respect to first base portion And
The first wiring board can be attached to a partition member.

According to the present invention, the casing can be reduced in size by providing a predetermined angle at the lower part of the casing, and this improves the degree of freedom of arrangement inside the casing. Since the first wiring board can be attached to the casing main body, the casing that accommodates the first wiring board can be arranged in a state of being separated from the casing. A space can be formed between the casing and the casing, and the heat of the casing is prevented from being directly transferred to the casing main body.

The present invention, among the pre-Symbol first wiring board and the second wiring board, the ends of the connected flexible wire to either is one of the first wiring board and the second wiring board The connector is detachably connected to a connector fixed to the other.

According to the present invention, the second wiring board is included in addition to the first wiring board on which the electronic circuit element that generates heat is mounted. The first wiring board and the second wiring board are connected to each other between the first wiring board and the second wiring board by connecting the flexible wire and the end of the flexible wire with a connector to be connected. It is possible to make it difficult for noise to enter when the signal is transferred.

Even if the first wiring board is inclined with respect to the second wiring board at a predetermined angle, mutual connection can be easily performed by bending the flexible wire in correspondence with the predetermined angle.

According to the present invention, an air passage is formed between the upper part of the electromagnetic shielding metal casing and the inner surface of the housing, and the air passing through the air passage is formed in the housing near the upper portion of the first wiring board. It is characterized by being discharged from the vent hole formed.

According to the present invention, the air heated by the heat generation of the electronic circuit element of the first wiring board is guided to the air passage through the air passage. Thereby, the heated air can be efficiently discharged from the vent hole.

The present invention, the electronic circuit device includes a rod-shaped antenna,
The antenna is characterized in that it can rotate and protrude upward on the outer side of the electromagnetic shielding metal casing and in the vicinity of the upper portion of the electromagnetic shielding metal casing.

  According to the present invention, the antenna protrudes upward in the vicinity of the upper portion on the outer side of the electromagnetic shielding metal casing, so that interference with transmission / reception of radio waves by the metal casing can be prevented. Further, since the antenna is rotatably provided, the antenna position can be changed depending on the state of transmission / reception of radio waves.

The present invention, said communication device is a telephone device connected to the Internet, electronic circuit elements which the heating is characterized by a router control unit.

  According to the present invention, the communication device is a telephone device connected to the Internet network, and the electronic circuit element that generates heat is a router control unit. The telephone device can transmit and receive voice data via the Internet. In such a telephone that transmits and receives voice data via the Internet, data is transmitted and received by VoIP, for example. In such a telephone device, it is necessary to always monitor the state assuming that there is an incoming call at any time. The router control unit is always in a power-on state and is in an activated state. Such a router control element generates a large amount of heat.

  In such a telephone device, by adopting the above-described structure, even if the router control unit is arranged in the housing, the substrate having the original function of the telephone is not affected by heat.

  Further, the present invention is characterized in that a protruding portion that protrudes rearward is formed on the rear side of the housing of the rear cover member so as not to disturb the air flow of the vent hole facing the rear. To do.

  According to the present invention, even when the back of the communication device is arranged close to the wall surface, for example, a space is formed between the vent hole facing the back surface and the wall surface by the projecting portion contacting the wall surface. The vent hole is not blocked by the wall surface. For example, the protruding portion is formed below a vent hole facing the back. Thereby, the flow of heated air flowing out from the casing and the flow of room temperature air flowing into the casing are not hindered. For example, a terminal for connecting an external device connection cord is placed inside the protruding portion.

According to the present invention, the heated air inside the housing and the room temperature air outside the housing can be exchanged in a short time. Further, even when the rear cover member is installed toward the wall surface, a space is formed between the rear cover member and the wall surface, and the vent hole provided in the rear cover member can be prevented from being blocked by the wall surface. . Therefore , since the electronic circuit element mounted on the first wiring board is efficiently and reliably cooled, high reliability with respect to the effect of suppressing the temperature rise of the electronic circuit element is achieved with a simple configuration and low Can be achieved at a cost.
In addition, the mounting region is provided below the first wiring board serving as a heat generation source and at a position distant from the first wiring board, so that an electrical element provided on the second wiring board malfunctions due to heat. The possibility can be reduced.

According to the present invention, since the partition member housing space is partitioned into the heating space and the remaining space, the air heated by the exothermic electronic circuit elements, a first wiring alternative provided to the remainder of the space It is possible to prevent the occurrence of a problem that the electronic component that is heated in contact with the substrate and is mounted on the other first wiring substrate is heated.

Further, according to the present invention, the air heated by the heat generated by the electronic circuit element in the casing moves upward from the first wiring board in the casing, so that the heated air is prevented from moving toward the operation unit. The Further, the heated air is discharged to the outside of the casing from the side opposite to the place where the operator is located in order to operate the operation unit. Therefore, the air heated by the electronic circuit device flows out of the housing from a position away from the operator. This prevents the heated air from directly hitting the operator and improves safety.

  Further, according to the present invention, the communication device can be operated without worrying about the heat generated from the casing by providing the heat generating space behind the casing.

Further, according to the present invention, it is possible to prevent electromagnetic waves from entering the electronic circuit board and to prevent electromagnetic waves from being emitted from the electronic circuit board to the outside. In addition, by housing the first wiring board in the metal casing, heat can be efficiently absorbed from the heated air, and the temperature in the vicinity of the first wiring board can be reduced. The temperature of the flowing out air can be reduced.

Further, according to the present invention, the casing can be reduced in size by providing a predetermined angle at the lower portion of the casing, thereby improving the degree of freedom of arrangement inside the casing. Since the first wiring board can be attached to the casing main body, the casing that accommodates the first wiring board can be arranged in a state of being separated from the casing. A space can be formed between the casing and the casing, and the heat of the casing is prevented from being directly transferred to the casing main body.

Further, according to the present invention, it is possible to make it difficult for noise to enter when signals are transferred between the first wiring board and the second wiring board. Further, the first wiring board can easily connect the second wiring board to each other.

According to the present invention, the air heated by the heat generation of the electronic circuit elements of the first wiring board is guided to the air passage through the air passage. Thereby, the heated air can be efficiently discharged from the vent hole.

  Further, according to the present invention, since the casing does not adhere to the wall or the like by the protruding portion protruding from the casing to the rear, the vent hole formed at the back of the casing is not blocked, and the heat dissipation effect is improved. Decline can be prevented.

  In addition, according to the present invention, it is possible to reduce the wiring of the communication cable and the AC adapter, thereby realizing a space saving of the communication facility, and the degree of freedom in installation is improved.

  FIG. 1 is a cross-sectional view showing a telephone device 1 which is a communication device according to an embodiment of the present invention. FIG. 2 is a perspective view showing a part of the telephone device 1 by cutting away.

  The telephone device 1 according to the present embodiment uses a VoIP (Voice Over Internet Protocol) to transmit packetized voice data via the Internet, and a speaker side telephone that establishes a connection via the Internet and This is a so-called Internet telephone apparatus that can make a call between telephones on the receiver side.

  The telephone device 1 is a base unit of a cordless telephone device that can communicate with a cordless slave unit (not shown) by wireless communication. The telephone device 1 can be connected to the Internet using xDSL constructed using a public telephone line network between line users. In the present embodiment, the telephone device 1 can be connected to the Internet using ADSL (Asymmetric Digital Subscriber Line). In FIG. 1, the vertical direction is the vertical direction.

  In the present embodiment, the router refers to, for example, a part of the protocol of the network layer (third layer) and the transport layer (fourth layer) in the OSI reference model, and transmits data on the network to other networks. A device that relays and forwards data to. A splitter refers to a device that separates an audio signal and a data signal. A modem refers to a modulation / demodulation device that converts digital data into audio signals and converts audio signals into digital data.

  In the present embodiment, a voice communication system using the Internet protocol communication network of the Internet is simply referred to as “VoIP”.

  The telephone device 1 includes a housing 2, an electronic circuit device 3 on which a system that performs a communication operation is mounted, and an operation unit 14. The electronic circuit device 3 includes a first wiring board 5 and a second wiring board 31 and is housed in the internal space 20 of the housing 2. An electronic circuit element 4 that generates heat is mounted on the first wiring board 5 that is at least a part of the electronic circuit device 3.

  The first wiring board 5 is disposed in the internal space 20 of the housing 2 in a posture inclined at a predetermined angle θ2 with respect to the vertical virtual plane L1. The angle θ2 is selected to be greater than 0 ° and less than 60 ° (0 ° <θ2 <60 °), for example. In the present embodiment, the angle θ2 is selected to be 28 °, for example.

  In the housing 2, a plurality of air holes 6 that connect the internal space 20 and the external space of the housing 2 are formed near the lower portion and the upper portion of the first wiring board 5. The vicinity of the lower part of the first wiring board 5 is a region including the upper part and the lower part of the lower part of the first wiring board 5. Further, the vicinity of the upper part of the first wiring board 5 is a region including the upper and lower parts of the upper part of the first wiring board 5. The air holes 6 are collectively referred to as the air holes 6.

  The housing 2 is inclined upward as it goes from the front to the back of the housing main body 12, and an operation unit 14 provided with an operation member 13 that is operated for communication is provided on the housing main body 12. A back cover member 15 that is provided and covers the first wiring substrate 5 and an upper cover member 22 are included. The housing 2 is formed of an electrically insulating resin material. The front side of the housing body 12 is the lower end side of the operation unit 14 that is inclined upward, and is the left side of FIG. A direction extending in front of and behind the housing 2 is referred to as a front-rear direction X.

  The casing main body 12 includes a bottom portion 17 and a main body upper portion 18 that is inclined upward at a predetermined angle from the front side to the back side of the bottom portion 17 and a direction perpendicular to the front-rear direction X of the telephone device 1 in FIG. A right side wall portion 19A and a left side wall portion 19B that rise upward from the bottom portion 17 in the width direction W perpendicular to the vertical direction.

  A plurality of protrusions 21 are provided below the bottom portion 17. When the bottom 17 is viewed from above, it is substantially rectangular. In the present embodiment, the protrusions 21 are arranged near the four corners of the bottom 17. The bottom portion 17 extends in parallel with the mounting surface 23 on the flat plate. When the bottom portion 17 is mounted on the mounting surface 23 on the flat plate, the protrusion 21 comes into contact with the mounting surface 23, and A space is formed between them.

  The housing body 12 has a partition member 16. The partition member 16 is formed so as to rise from the bottom 17 of the housing body 12 near the back of the housing body 12. The partition member 16 is provided from the bottom portion 17 of the housing body 12 to the main body upper portion 18 of the housing body 12 where the operation unit 14 is provided. The partition member 16 partitions the internal space 20 of the housing 2 into two spaces in the front-rear direction X. Of the internal space 20 of the housing 2, a space in front of the partition member 16 is a first internal space 20 </ b> A, and a space behind the partition member 16 is a second internal space 20 </ b> B.

  The partition member 16 includes a first partition portion 16A that is inclined from the back of the housing body 12 toward the front at a predetermined angle θ2 with respect to the vertical virtual plane L1, and a lower portion of the first partition portion 16A. And a second partition portion 16B extending rearward. The partition member 16 is formed with a fixing portion 24 for fixing the first wiring board 5 from the front to the back.

  The first wiring board 5 is disposed behind the partition member 16. The first wiring substrate 5 is detachably fixed to a fixing portion 24 provided on the partition member 16 of the housing body 12 by a fixing member such as a screw member. The first wiring board 5 is provided from the lower part to the upper part of the second internal space 20B of the housing 2. The first wiring board 5 is provided behind the operation unit 14.

  The back cover member 15 is provided behind the housing body 12 and is fixed to the housing body 12. The rear cover member 15 is opposed to the first wiring board 5 and is connected to an inclined portion 15A inclined from the back to the front by an angle θ2 from the vertical virtual plane L1, and a lower end portion 15Aa of the inclined portion 15A. And a protruding portion 15 </ b> B that contacts the bottom portion 17 of the housing body 12.

  A first vent hole 25 is formed in the lower portion of the back cover member 15. The first vent hole 25 is formed in the protruding portion 15B. A second ventilation hole 26 is formed above the intermediate portion in the vertical direction of the inclined portion 15A.

  For example, even if the telephone apparatus 1 is installed with the back cover member 15 facing the wall surface 36, the back cover member 15 is provided with the inclined portion 15 </ b> A, and further provided with the protruding portion 15 </ b> B, so It is possible to prevent the air hole 6 formed in the inclined portion 15 </ b> A of the back cover member 15 from being blocked by the wall surface 36 by forming the space 37.

  A gap is formed between the upper end portion 15Ab of the inclined portion 15A of the rear cover member 15 and the rear end portion 12A of the housing body 12. An upper cover member 22 is provided behind the operation unit 14 and on the upper portion of the rear upper end portion 12A of the housing body 12. The rear side end portion 22A of the upper cover member 22 has a bent portion 22Aa bent downward, and the bent portion 22Aa contacts the back cover member 15. A third vent hole 27 is formed in the lower end portion 15Aa of the inclined portion 15A of the back cover member 15 or the bent portion 22A of the upper cover member 22. The 3rd ventilation hole 27 is a long hole extended over the both ends of the width direction. A fourth ventilation hole 28 is formed behind the bottom 17 of the housing body 12.

  A surface 29a of the first partition 16A facing the first wiring substrate 5, a surface 29b perpendicular to the thickness direction of the first wiring substrate 5, and a surface 29c of the back cover member 15 facing the first wiring substrate 5 are predetermined. For example, parallel to each other.

  The second wiring board 31 of the electronic circuit device 3 is provided from the front side to the back side of the bottom portion 17. A surface 31a facing the lower side of the second wiring board 31 is disposed away from the inner surface 17a of the bottom part 17 of the housing body 12 by a predetermined distance, and the second wiring board 31 and the bottom part 17 facing the second wiring board 31 A space is formed between the two.

  A rear side end portion 31 </ b> A of the second wiring substrate 31 is disposed below the lower end portion 5 </ b> A of the first wiring substrate 5. The electrical wiring of the first wiring board 5 and the electrical wiring of the second wiring board 31 are electrically connected to each other by the first connecting means 32. The first wiring board 5 and the second wiring board 31 are provided with predetermined electric circuits for the telephone device 1 to function as a telephone and a router.

  The operation unit 14 provided on the upper portion of the housing body 12 includes an operation wiring board 33 provided with an electric circuit element that detects the operation of the operation member 13 when the operator operates the operation member 13. The electrical wiring of the operation wiring board 33 is electrically connected to the electrical wiring of the second wiring board 31 via the second connection means 34 before the housing 2. The second connection means 34 is realized by a connection cable and a connector. The operation unit 14 is inclined upward from the front of the housing 2 to the back, and the operation wiring board 33 is also inclined upward from the front of the housing 2 to the back. By providing the second connection means 34 in front of the housing 2 and connecting the electric wiring of the operation wiring board 33 and the electric wiring of the second wiring board 31, the connection cable can be made as short as possible.

  An antenna 41 is provided on the upper end portion 42 behind the housing 2 so as to protrude from the housing body 12. The antenna 41 projects into the external space from one side in the width direction of the telephone device 1.

  The first wiring board 5 is stored in an electromagnetic shielding metal casing 40. Hereinafter, the electromagnetic shielding metal casing 40 is simply referred to as the casing 40. The casing 40 is disposed behind the partition member 16 and in the second internal space 20 </ b> B between the partition member 16 and the back cover member 15. The casing 40 has a substantially rectangular parallelepiped shape. A predetermined gap is formed between the casing 40 and the first partition 16A. A predetermined gap is formed between the casing 40 and the back cover member 15.

  3 to 6 show an example of the appearance of the telephone device 1. 3 is a view of the operation unit 14 as viewed from above, FIG. 4 is a right side view of the telephone device 1, FIG. 5 is a left side view of the telephone device 1, and FIG. FIG. As shown in FIG. 3, the operation unit 14 of the telephone device 1 is provided with a display unit 101 and operation keys that are operation members 13. The display unit 101 displays a caller telephone number received by the number display, a simple character string of a message, or an operation state of the telephone device 1. The operation key includes a dial button for inputting a telephone number. In addition, as an operation key, an answering machine setting button, an answering machine playback button, a volume adjustment button, and the like may be provided.

  On the upper part of the operation unit 14, a placement unit 52 in which the handset 51 is arranged is formed. In the present embodiment, the placement unit 52 is provided on the other side in the width direction of the telephone device 1. This prevents the handset 51 from coming into contact with the antenna 300 when it is placed on or picked up from the placement unit 52.

  The handset 51 is connected to the electrical wiring of the second wiring board 31 by a handset cord 53. In the lower part of the left side wall portion 19 </ b> A of the housing 2, a receiver cord connection terminal attachment hole 54 that connects the internal space 20 and the external space of the housing 2 is formed. The second wiring board 31 is provided with a handset cord connection terminal 57 connected to the handset cord 52.

  A fifth vent 55 is formed at the bottom 17 of the housing 12 and below the left side wall 19A. A plurality of fifth vent holes 55 are formed. The plurality of fifth ventilation holes 55 are formed from the front-rear direction center of the housing 2 to the front end to the rear end. The fifth vent hole 55 is formed to be inclined from the back to the front at a predetermined angle θ2 with respect to the vertical virtual plane L1, and each fifth vent hole 55 is formed in a vertically long shape.

  A sixth vent hole 56 is formed at the bottom 17 of the housing 12 and below the right side wall 19A. A plurality of sixth vent holes 56 are formed. The plurality of sixth ventilation holes 56 are formed from a position closer to the front side to the rear side end part than the center part in the front-rear direction of the housing 2. The fifth vent hole 55 is formed so as to incline forward from the back at a predetermined angle θ2 with respect to the vertical virtual plane L1, and each sixth vent hole 56 is formed in a vertically long shape. By providing the fifth and sixth vent holes 55 and 56 in this manner, the area of the opening formed near the lower portion of the first wiring board 5 can be increased.

  A line cord connection terminal 61, an external device terminal 62, a power switch 63, and a power cord connection terminal 64 are provided at the lower part of the rear side end of the housing 2. These are mounted on the second wiring board 31 and are electrically connected to the wiring of the second wiring board 31. The line cord connection terminal 61, the external device terminal 62, the power switch 63, and the power cord connection terminal 64 are disposed in the vicinity of the protruding portion 15 </ b> B of the back cover member 15.

  One end of the line cord is connected to the line cord connection terminal 61. The other end of the line cord is connected to a modular jack, thereby connecting to the ADSL line network. The external device terminal 62 is used to connect these devices when a telephone is installed or a facsimile is installed. The power switch 63 is for turning on the telephone device 1. The power cord connection terminal 64 is for connecting an AC adapter. Power is supplied to the power cord connection terminal 64 from the power source via the AC adapter.

  An opening is formed in the protruding portion 15B of the back cover member 15 so that a predetermined cord can be connected to the line cord connection terminal 61, the external device terminal 62, the power switch 63, and the power cord connection terminal 64. Is done. By providing the power switch 63 at the rear end and at the lower part of the housing 2, it is possible to prevent the power from being inadvertently cut off.

  A projecting portion 15B is provided at the lower part of the back cover member 15, and the line cord connecting terminal 61, the external device coexisting terminal 62, the power cord connecting terminal 64, and the like are arranged in the back so that the cord is connected to these terminals. Then, the protrusion 15B of the back cover member 15 of the telephone device 1 cannot be disposed in close contact with the wall surface. Thus, when the telephone device 1 is installed, the first vent hole 25 formed in the protruding portion 15B is prevented from being blocked by the wall surface.

  FIG. 7 is a rear view of the back cover member 15, and FIG. 8 is a cross-sectional view of the back cover member 15 as viewed from the cutting plane line II in FIG. 7. A first vent hole 25 and a second vent hole 26 are formed in the back cover member 15.

  The first vent hole 25 is disposed near the lower part of the back cover member 15 and penetrates the back cover member 15 in the thickness direction. The first vent hole 25 has openings 61A, 62A, 63A, 64A for the line cord connection terminal 61, the external device terminal 62, the power switch 63, and the power cord connection terminal 64 formed in the protruding portion 15B. Formed in different regions. The projecting portion 15B of the back cover member 15 includes a first projecting forming portion 65 extending from the lower end portion of the inclined portion 15A substantially perpendicular to the vertical virtual plane L1, and a rear end portion of the first projecting forming portion 65. And a second protrusion forming portion 66 substantially parallel to the vertical virtual plane L1. The openings 61A, 62A, 63A, 64A and the first vent hole 25 are formed in the second protrusion forming portion 66.

  A plurality of first vent holes 25 are formed. Each first vent hole 25 is formed side by side in the width direction. By forming the first vent hole 25 in the second protrusion forming portion 66 substantially perpendicular to the vertical virtual plane L1, dust and dust are prevented from entering the inside of the housing 2 from the outside. The first vent hole 25 extends in the vertical direction perpendicular to the width direction. Accordingly, the back cover member 15 between the first ventilation holes 25 is prevented from obstructing the flow of air flowing into the internal space 20 of the housing 2.

  The second vent hole 26 is formed near the upper portion of the back cover member 15 and penetrates the back cover member 15 in the thickness direction. The air in the internal space 20 of the housing 2 heated by the electronic circuit element 4 passes through the second vent hole 26 and flows out to the external space of the housing 2.

  A plurality of second vent holes 26 are formed. Each second vent hole 26 is formed side by side in the width direction. As a result, the air in the internal space 20 flows uniformly to the external space over the width direction, and the air distributed in the width direction is prevented from partially becoming hot. The back cover member 15 is provided with a plurality of intrusion prevention pieces 111 and 112 that prevent dust and dust from entering the internal space 20 through the second ventilation holes 26 from the external space.

  The intrusion prevention pieces 111 and 112 extend into the second vent hole 26 in a first direction intersecting with a passing direction 113 through which air passes. A plurality of intrusion prevention pieces 111 and 112 are provided. The intrusion prevention pieces 111 and 112 are arranged in a second direction that intersects both the first direction and the passing direction 113. Further, the two intrusion prevention pieces 111 and 112 adjacent to each other in the second direction are arranged at intervals in the passage direction 113.

  For example, the back cover member 15 includes a first group 114 in which the intrusion prevention pieces 111 are arranged in the width direction and a second group in which the intrusion prevention pieces 112 are arranged in the width direction. Each intrusion prevention piece 111 of the first group 114 and each intrusion prevention piece 112 of the second group 115 are arranged at an interval in the front-rear direction. Further, the first group 114 and the second group 115 are arranged so as to be shifted in the width direction. Each intrusion prevention piece 111 of the first group 114 extends between the intrusion prevention pieces 112 of the second group 115 including a region extending in the front-rear direction. Therefore, even if air enters from the external space, it is highly likely that the intrusion is prevented by colliding with each of the intrusion prevention pieces 111 of the first group 114 and each of the intrusion prevention pieces 112 of the second group 115. And dust can be prevented from entering the inside of the housing 2 from the outside. Furthermore, since the intrusion prevention pieces 111 and 112 of the first group and the second group extend in the vertical direction, the air flow in the internal space 20 of the housing 2 that flows upward from below is not obstructed. Furthermore, the intrusion prevention pieces 111 and 112 of the first group 114 and the second group 115 are arranged at positions where they are recessed from the outer surface of the back cover member 15, whereby dust and dirt accumulate on the intrusion prevention pieces 111 and 112. Can be prevented.

  9 to 11 are diagrams schematically showing the arrangement of the electronic circuit elements 4 provided on the first wiring board 5. 9 is a rear view of the first wiring board 5, FIG. 10 is a top view of the first wiring board 5, and FIG. 11 is a left side view of the first wiring board 5. 9 to 11, the electronic circuit element 4 is indicated by hatching.

Electronic circuit elements 4 such as an ADSL chip 4A, a VoIP chip 4B, and a central processing unit (abbreviated as CPU) 4C are mounted on the first wiring board 5. The electronic circuit element 4 is electrically connected to the electrical wiring of the first wiring board 5. These electronic circuit elements 4 generate heat when the power is turned on and they are activated. The first wiring board 5 is provided with a wireless communication card connector 72 to which a wireless communication card 71 for performing wireless communication such as a wireless LAN can be detachably attached. The first wiring board 5 includes a LAN (Local Area).
A LAN port 73 to which a (Network) cable can be connected is provided.

  The electronic circuit element 4 serving as a heat source is mounted on the back surface of the first wiring board 5. The wireless communication card connection connector 72 and the LAN port 73 are mounted on the back surface of the first wiring board 5 and are electrically connected to the electrical wiring formed on the first wiring board 5.

  The ADSL chip 4A is a semiconductor integrated circuit having an ADSL modem function, and modulates and demodulates a digital signal to perform transmission / reception using an ADSL line. The VoIP chip 4B is a semiconductor integrated circuit that controls VoIP, and performs call control for making a VoIP telephone call, establishment of a PPP (Point-to-Point Protocol) session, and authentication with a VoIP server.

  The CPU 4C executes a control program stored in a memory (not shown) or the like, and controls the ADSL chip 4A, the VoIP chip 4B, the wireless communication card 71 attached to the wireless communication card connector 72, and the like.

  The CPU 4C is an electronic circuit element having a router function and is a router control unit. Whether there is data to which address information of a device such as a telephone device 1, a device connected by wireless communication via the wireless communication card 71, or a personal computer connected to the LAN port 73 via a LAN cable is attached Is monitored by the CPU 4C. If there is data to which the IP address of the telephone device 1 is assigned, the CPU 4C transmits the data to the second wiring board 31. For example, if the data is incoming information, the second wiring board 31 generates a sound from a speaker described later by detecting the incoming call. If the data is voice data, the voice data is reproduced and transmitted from the receiver. Such an operation of the CPU 4C is simply referred to as routing.

  In order to make a telephone call using VoIP, the CPU 4C needs to constantly monitor whether there is an incoming call. Therefore, the electronic circuit elements 4 constituting the ADSL modem function and the router function are always in a power-on state and are in an activated state. For this reason, the electronic circuit element 4 generates heat.

  The CPU 4C and the ADSL chip 4A are disposed at an intermediate portion between the upper end portion 5A and the lower end portion 5B of the first wiring board 5. The VoIP chip 4B is disposed near the lower end portion 5B of the first wiring board 5.

  The first wiring board 5 has a substantially rectangular shape, and each corner portion 45 is provided with a through hole 9 that penetrates in the thickness direction of the first wiring board 5. A screw member is inserted through the through-hole 9 to fix the first wiring board 5 to the fixing portion 24 provided in the partition member 16.

  A LAN cable attachment hole 74 for connecting a LAN cable to a LAN port 73 provided in the first wiring board 5 is formed in the left side wall portion 19 </ b> A of the housing 2. A wireless communication card mounting hole 75 for connecting the wireless communication card 71 to the wireless communication card connector 72 provided on the first wiring board 5 is formed in the left side wall portion 19 </ b> A of the housing 2.

  A connection pin 801 is provided at the lower end portion 5 </ b> A of the front surface of the first wiring board 5. A detailed configuration of the connection pin 801 will be described later.

  12 to 17 are a rear view, a front view, a top view, a bottom view, a right side view, and a left side view of the casing 40. 18 is a cross-sectional view taken along section line II-II in FIG. The casing 40 is formed of, for example, iron and copper. The back surface of the casing 40 faces the back cover member 15. The first substrate wiring 5 is accommodated in the internal space of the casing 40. The casing 40 is formed by combining a first casing portion 41 that covers the front side of the first wiring board 5 and a second casing member 42 that covers the back side of the first wiring board 5.

  The first casing portion 41 is provided to face the partition member 16. The first casing part 41 is erected at a predetermined angle from a first flat part 141 extending in parallel with the first wiring board 5 and both ends 142 in the vertical direction of the first flat part 141, and from the first flat part 141. The first connecting portion 143 and the first connecting portion 143 that are separated from each other as they are separated from each other, extend perpendicularly to the first plane portion 141, and sandwich both ends in the vertical direction of the first wiring board 15. The second connecting portion 144 and the second connecting portion 144 are connected to each other, and the second connecting portion 144 and the third connecting portion 145 are connected to each other as they are separated from the first flat surface portion 141. It includes a fourth connecting portion 147 that sandwiches both ends 146 in the vertical direction and a fifth connecting portion 148 that is connected to the fourth connecting portion 147 and separates away from the first flat surface portion 141.

  The second casing portion 42 includes a second flat surface portion 151 extending in parallel with the first wiring board 5, an upper surface portion 153 erected vertically from an upper end portion 152 of the second flat surface portion 151, and a lower end of the second flat surface portion 151. A first lower surface portion 155 that is erected from the portion 154 and that is separated from the upper surface portion 153 as it is separated from the second flat surface portion 151, and a second lower surface portion that extends in parallel to the upper surface portion 153. 156.

  The free end portions 157 and 158 of the upper surface portion 153 and the second lower surface portion 156 are in contact with the back surface of the first wiring board 5 and are sandwiched by the first casing portion 41 from above and below. As a result, the casing 40 is securely fixed to the first wiring board 5.

  A portion of the casing 40 that faces the first partition portion 16A is a front portion 91, and a portion that faces the back cover member 15 is a back portion 82.

  A through-hole 81 that communicates the internal space 20 and the external space of the casing 40 is formed in the front surface portion 91 and the back surface portion 82. The through-holes 81 have a circular shape and are formed in a scattered manner in the casing 40. The through hole 81 is provided at least in a region facing the electronic circuit element 4 provided in the first wiring element 5. The ratio of the opening area of the through hole 81 per unit area of the casing 40 is large in the vicinity of the region facing the heat generating electronic circuit element 4 disposed on the first wiring board 5 and small in the far away position. To be elected. By forming the through holes 81 in this way, a large amount of air flowing in from the external space of the housing 2 can be guided to the vicinity of the electronic circuit element 4 that generates heat, and the air heated by the electronic circuit element 4 is casing. 40 can be efficiently discharged to the outside. The size of the through hole 81 is selected so that the electromagnetic wave does not enter the casing 40 through the through hole 81. The front part 91 and the back part 82 are plate-like and are arranged in parallel with the first wiring board 5.

  In the present embodiment, the through holes 81 are formed in the casing 40 more densely than the other regions in the region facing the CPU 4 </ b> C disposed on the first wiring board 5. Specifically, more through holes 81 are formed in the first region 84 below and below the region facing the CPU 4C than in other regions.

  An upper through hole 83 extending in the width direction is formed in the second region 85 of the upper end portion 161 of the back surface portion 82. The upper through holes 83 are formed across the widthwise ends of the casing 40 with an interval in the width direction. The upper through hole 83 has a long hole shape. In the third region 86 excluding the first region 84 and the second region 85 of the back surface portion 82, the through hole 81 is formed more coarsely than the first region 84. The distance between the adjacent through holes 81 is shorter in the first region 84 than in the third region 86.

  An insertion hole 92 is provided in the lower portion of the front portion 91 of the casing 40. The insertion hole 92 is formed at a position corresponding to the connection pin 801 provided in the first wiring board 5 accommodated in the casing 40. The connection pin 801 can protrude into the external space of the casing 40 through the through hole 92. A through hole 81 is also formed in the front portion 91 of the casing 40. The opening area of the back surface portion 82 is smaller than the opening area of the front surface portion 91.

  A lower through hole 93 extending in the width direction is formed in the lower portion of the casing 40. The casing 40 includes a first base portion 94 that is perpendicular to the first wiring substrate 5 incorporated therein, and a second base portion 95 that has an angle θ1 of less than 90 degrees with respect to the first base portion 94. The lower through hole 93 is formed in the first base portion 94. The lower through-holes 93 are scattered between both end portions in the width direction, and are formed by long holes. In the present embodiment, for example, 15 lower through holes 93 are formed. Since air constantly flows from the lower through-hole 93, it becomes difficult for dust and the like to enter by making it a long hole. Further, since the lower through-hole 93 is formed between both end portions in the width direction, the opening area can be increased.

  The first wiring board 5 is inclined with respect to the vertical virtual plane L1, and the front portion 91 and the back surface portion 82 of the casing 40 are also inclined with respect to the vertical virtual plane L1. By configuring the lower part of the casing 81 as described above, the casing 40 can be made compact, and the degree of freedom of arrangement of the casing 81 arranged inside the housing 2 is improved.

  An opening 163 is formed in the left side wall 162 of the casing 40. By forming the opening 163, the wireless communication card 71 can be connected to the wireless communication card connector 72 provided on the first wiring board 5, and the LAN cable can be connected to the LAN port 73.

  A side through hole 166 is formed in the right side wall 165 of the casing 40. The side through hole 166 has a long hole shape extending in a direction from the lower part of the casing 40 toward the upper part. A plurality of the side through holes 166 are formed.

  The distance between the surface of the back surface 82 of the casing 40 that faces the first wiring board 5 and the first wiring board 5 is the distance between the surface of the front face 91 that faces the first wiring board 5 and the first wiring board 5. Choose bigger than.

  FIG. 19 is a plan view schematically showing the second wiring board 31 of the present invention. The second wiring board 31 is formed in a plate shape, and a plurality of electric elements are mounted thereon. The second wiring board 31 realizes an electric circuit by mounting each electric element, and can perform an operation described later. The second wiring board 31 extends in the width direction, and is arranged horizontally and fixed to the housing 2 in the present embodiment. As shown in FIG. 1, the second wiring board 31 is provided with a casing 40 that houses the first wiring board 5 in a region above a portion closer to the rear in the front-rear direction. The second wiring board 31 extends forward and rearward with respect to the casing 40 disposed in the internal space 20 of the housing 2. In the second wiring board 31, a portion in front of the casing 40 is referred to as a front portion 31 a and a portion behind the casing 40 is referred to as a rear portion 31 b. The front portion 31a of the second wiring board 31 is formed with a mounting area where an electrical element is mounted, and the rear portion 31b of the second wiring board 31 is formed with a non-mounting area where no electrical element is mounted. Accordingly, the mounting region is provided below the first wiring board 5 serving as a heat generation source and at a position away from the first wiring board 5, so that the circuit element provided on the second wiring board 31 malfunctions due to heat. The possibility of doing it can be reduced.

  The second wiring board 31 includes ground portions 401 and 402, a connector 802, an opening 403, a line cord connection terminal 61, an external device terminal 62, a power switch 63, and a power cord connection terminal 64. Including. The grounding portions 401 and 402 are portions for electrically grounding, that is, grounding the second wiring board 31, and grounding the second wiring board 31. The grounding portions 401 and 402 are provided in the second wiring board 31 at a position close to the casing 40 and are provided on both sides in the width direction. The ground parts 401 and 402 are made of a conductive material.

  Further, the grounding portions 401 and 402 are electrically connected to the casing 40 by the first belt-like body 181 having conductivity. The 1st strip | belt-shaped body 181 is implement | achieved by the strip | belt-shaped copper foil, for example. Thereby, unnecessary noise radiation by the casing 40 can be suppressed. Further, since the grounding portions 401 and 402 are provided as close as possible to the casing 40, the length of the conductive band can be shortened, the length of the conductive band can be shortened, Noise radiation caused by the band state can be reduced.

  The connector 802 is provided to electrically connect the electrical wiring provided on the first wiring board 5 and the electrical wiring provided on the second wiring board 31. By connecting the connection pin 801 which is a connector coupling body provided on the first wiring board 5 to the connector 802, the first and second electric wirings are electrically connected. The connector 802 protrudes upward from the second wiring board 31.

  The rear portion 31 b of the second wiring board 31 is provided with a line cord connection terminal 61, an external device terminal 62, a power switch 63 and a power cord connection terminal 64.

  The opening 403 is provided in the rear portion 31b of the second wiring board 31, and an opening 405 is formed through the second wiring board 31 in the thickness direction. As a result, the space below the second wiring board 31 and the space above the second wiring board 31 communicate with each other. The opening 403 is preferably provided in the vicinity of the fourth vent hole 26. Moreover, it is preferable that the casing 40 is disposed in a space above the opening 405. As a result, the air flowing into the internal space 20 of the housing 2 from the fourth ventilation hole 6 can pass through the opening 405 and be brought into contact with the casing 40.

20 and 21 are a cross-sectional view and a rear view of the telephone device 1 for explaining the air flow. Air heated by the heat generation of the electronic circuit element 4 is released from the upper hole 83 and hole 82 as indicated by arrow A and arrow B in FIG. 20 and FIG. 21 to the outside space of the casing 40 The The heated air is discharged into the external space of the housing 2 from the third vent hole 27 and the second vent hole 26 located above the upper through hole 83 and the through hole 81. Due to the release of heated air as indicated by these arrows A and B, the first air hole 25, the fourth air hole 26, the fifth air hole 55 and the inside of the internal space 20 of the housing 2 are provided. Room temperature air flows from the external space through the sixth vent hole 56 as indicated by arrows C, D, E, and F.

  The casing 40 is heated to a temperature higher than normal temperature by suppressing an increase in the temperature of the internal space 20 of the casing 40 by contact with the air heated by the heat generated by the electric circuit element 4. The air in the space 240 formed between the casing 40 and the back cover member 15 is heated. As shown by the arrow E, most of the air heated in the space 240 is discharged to the external space through the second vent hole 26. A part of the air that has flowed in is mainly supplied from below as indicated by an arrow C, and the casing 40 is cooled by air at normal temperature.

  The air in the casing 40 is heated and discharged into the external space as indicated by arrows A and B shown in FIGS. 20 and 21, whereby the arrows C, D, E, and F are entered in such a space. As shown, the normal temperature air supplied flows from the lower through hole 93 of the casing 40 into the casing 40. Since this air passes over the electronic circuit element 4 in a relatively narrow space between the first wiring board 5 and the first casing portion 41 in the direction perpendicular to the paper surface of FIG. 20, the electronic circuit element The surface of 4 is always in contact with outside ambient temperature air.

  The upper through hole 83 is formed facing the uppermost space of the casing 40. The third vent hole 27 is formed facing the uppermost space of the housing 2. Thereby, the heated air can be discharged smoothly. An air passage is formed between the upper end portion 183 of the casing 40 and the rear upper end portion 12A of the housing body 12. The rear upper end portion 12A of the housing body 12 has an inner surface 331 that faces the upper end portion 183 of the casing 40 and is inclined upward toward the back. For example, the inclination angle θ3 formed by the virtual horizontal plane and the inner surface 331 is designed to be, for example, 20 degrees or more and 45 degrees or less. An air passage is formed between the inner surface 331 and the upper end 183 of the casing 40. The inner surface 331 is inclined from the front toward the third vent hole 27, whereby the heated air is guided to the third vent hole 27 and is smoothly discharged.

  Since the first vent hole 25 and the lower through hole 93 are formed substantially on one horizontal line, the flow resistance is low and the air from the external space of the housing 2 is converted into the casing 40 as indicated by the arrow C. Smoothly flows into the interior space 20.

  Further, the opening 405 and the fourth vent hole of the second wiring board 31 are formed on the inclined surface of the first wiring board 5. As a result, the air in the external space indicated by the arrow D flows into the space.

  As described above, heated air as indicated by arrows A and B is released to the outside. By this action, air is drawn into the casing 40. The heat generated from the electric circuit element 4 by the air that has flowed in is recovered, and this heat is discharged to the outside. As long as the electric circuit element 4 generates heat, it is possible to cause release of the heated air to the external space of the housing 2 and intake of normal temperature air into the internal space 20. As a result, the electronic circuit element 4 is prevented from malfunctioning due to excessive heat generation.

  In the present embodiment, the partition member 16 partitions the space in the housing 2 into a first internal space 20A that is a heat generation space and a second internal space 20B that is a remaining space. The air heated by the contact with the second wiring board 31 provided in the first internal space 20 is heated and the electronic component mounted on the second wiring board 31 is heated. Can be prevented.

  The first wiring board 5 is provided behind the operation unit 14. Accordingly, the air heated by the heat generated by the electronic circuit element 4 in the housing 2 moves upward from the first wiring board 5 in the housing 2, so that the heated air is directed to the operation unit 14. Is prevented. The heated air is discharged to the outside of the housing 2 from the side opposite to the place where the operator is located in order to operate the operation unit 14. Therefore, the air heated by the electronic circuit element flows out of the housing 2 from a position away from the operator. This prevents the heated air from directly hitting the operator and improves safety. Further, by providing the heat generating space behind the housing 2, the operator can operate the telephone device 1 without worrying about the heat generated from the housing 2.

  FIG. 22 is an enlarged cross-sectional view showing a connection structure 800 between the first wiring board 5 and the second wiring board 31. The connection structure 800 that is the first connection means 32 includes a plurality of connection pins 801 that are flexible wires, and a connector 802 to which each connection pin 801 is connected.

  The connection pin 801 is made of a conductive material, and is bent at a bent portion 805 disposed at an intermediate portion. One end side portion 806 and the other end side portion 807 are formed with the bent portion 805 as a boundary. 806 and the other end portion 807 are formed in a straight line. The pin bending angle θ801, which is the angle formed by the axis L806 of the one end side portion 806 and the axis L807 of the other end portion 807, is added to the angle θ2 formed by the first wiring board 5 and the vertical virtual plane L1 at 90 degrees. Is an angle.

  This connection pin 801 is tapered at both ends, and is configured to be easily inserted into a connection target. The one end side portion 806 is inserted into the first wiring board 5 perpendicularly to the first wiring board 5 from the casing 40 side, and is soldered to the first wiring board 5 to be electrically and mechanically electrically connected to the first wiring board 5. It is connected to the. The one end side portion 806 is provided with a stopper 808 and is positioned with respect to the thickness direction of the first wiring board 5. Further, the connection bin 801 is provided with the axis L806 of the one end side portion 806 and the axis L807 of the other end side portion 807 arranged in parallel to a virtual plane perpendicular to the width direction of the first wiring board 5. The other end portion 807 is provided so as to protrude through the insertion hole 92 formed in the casing 40 and to protrude outside the casing. In this way, the connection bins 801 are provided side by side in the width direction on the first wiring board 5.

  The connector 802 has a plurality of connection portions 811 arranged in a straight line. The connection portion 811 includes a hollow connector housing 812 made of an electrically insulating material, and a terminal member 813 provided with one end portion disposed in the connector housing 812. The connector housing 812 has a pin insertion portion 816 in which a pin insertion hole 815 is formed. This pin insertion portion 816 can insert the other end portion 807 of the connection pin 801, and the inserted other end portion 807 is aligned with the axis L 807 of the pin insertion hole 815 and the axis L 815 of the pin insertion hole 815. In this state, it can be mechanically connected by elastically holding the entire circumference. A stopper 817 is provided at the other end portion 807 of the connection pin 801 and is positioned with respect to the direction of the axis L815 of the pin insertion hole 815.

  The terminal member 813 is made of a conductive material, and one end 818 is disposed near the pin insertion portion 816. When the connection pin 801 is inserted into the pin insertion portion 816, the one end portion 818 of the terminal member 813 is elastically brought into contact with the other end portion 807 of the connection pin 801 so that it can be electrically connected. It is configured.

  In such a connector 802, the connection portions 811 are arranged in the width direction of the second wiring substrate 31, and the axis L 815 of the pin insertion hole 815 is arranged perpendicular to the second wiring substrate 31. 31 is provided. As described above, the connector 802 is provided on the second wiring board 31, and the other end 820 of the terminal member 813 is soldered to the second wiring board 31 to be mechanically and electrically connected.

  By inserting each connection pin 801 into each pin insertion portion 816 of the connector 802, the connector 802 and each connection pin 801 are connected. As a result, the first wiring board 5 and the second wiring board 31 are electrically connected. By adopting such a connection structure 800, the other end of each connection pin 801 is arranged by arranging the first wiring board 5 in a desired inclined state in which the first wiring board 5 is connected to the second wiring board 31. The side portion 807 can be arranged vertically, and the connecting pin 801 is connected to the connector 802 simply by displacing the first wiring board 5 vertically downward in this state, and the first and second wiring boards 5, 31. Can be connected. Thus, compared with the case where the 1st wiring board 5 is displaced to the direction which inclined from the perpendicular | vertical, the 1st and 2nd wiring boards 5 and 31 can be connected by simple operation.

  In addition, the pin insertion portion 816 of the connector 802 can elastically hold the connection pin 801, and there is no need to provide a separate means for mechanical connection. Further, such a pin insertion portion 816 can scrape off foreign matters such as dust adhering to the outer surface when the connection pin 801 is inserted, and between the connection pin 801 and the terminal member 813. It is possible to prevent the foreign matter from being intervened. As a result, a good surface contact state between the connection pin 801 and the terminal member 813 can be ensured, and a good electrical connection state can be obtained. Therefore, the occurrence of noise at such a contact can be remarkably reduced. Further, the number of contacts can be reduced, and this can also suppress the generation of noise.

  In the above description, one connector having a plurality of connection portions has been described. However, the present invention is not limited to this, and a plurality of connectors may be provided, and one connector is connected to one connector. The structure in which a part is provided may be sufficient. A plurality of connection pins 801 are not necessarily required, and may be one. In this case, the connector only needs to have one connection portion.

  23 to 25 are views showing a structure in which the casing 40 and the operation wiring board 33 are grounded to the grounding portions 401 and 402 of the second wiring board 31. FIG. 23 is a cross-sectional view of the telephone device 1 in the front-rear direction. FIG. 24 is a diagram showing the telephone device 1 as seen from above with a part cut away. FIG. 25 shows a state in which the back cover 15 is removed. It is a rear view. 24 and 25, the first belt-like body 181 and the second belt-like body 182 are indicated by hatching.

  A first strip 181 for connecting the casing 40 to the grounding portion 402 of the second wiring board 31 is provided on the second partition 16B of the partition member 16. One end 181A of the first strip 181 is disposed on the upper part of the second partition 16B and is electrically connected to the casing 40. The first strip 181 extends from behind the second partition 16B to the lower portion of the second partition 16, and the other end 181B is electrically connected to the grounding part 402 of the second wiring board 31. As a result, the casing 40 is grounded. By setting it as such a structure, the 1st strip | belt-shaped body 181 can be shortened as much as possible. The first wiring board 5 is grounded via the casing 40 and the first strip 181.

  The rear side end 185 of the operation wiring board 33 is electrically connected to the casing 40 via a conductive connecting member 186 and a conductive second strip 182. The second strip 182 is realized by a copper foil, for example. The conductive member 186 protrudes into the first internal space 20 </ b> A of the housing 2 downward from the rear end 185 of the operation wiring board 33. The free end 187 of the conductive member 186 and the one end 182A of the second strip 182 are electrically connected. The other end 182 </ b> B of the second strip 182 protrudes into the second internal space 20 </ b> B via an insertion hole 188 formed in the partition member 16. The other end 182 </ b> B of the second strip 182 is electrically connected near the upper end of the casing 40. A resilient member 189 having elasticity is provided between the casing 40 and the partition member 16, and the second strip 182 is pressed in a direction toward the casing 40 by the resilient member 182. As a result, the second strip 182 can be reliably connected to the casing 40.

  The operation wiring board 33 is electrically connected to the grounding portions 401 and 402 of the first wiring board 31 via the casing 40 and grounded. With such a configuration, the wiring structure arranged in the internal space 20 of the housing 2 can be simplified. Therefore, the communication device 1 can be easily assembled.

  FIG. 26 is a side view showing the appearance of the antenna 300, and FIG. 27 is a cross-sectional view showing the antenna 300. The antenna 300 is electrically connected to a radio device 220 provided on the second wiring board 31 described later. 28 and 29 are cross-sectional views showing a state in which the antenna 300 is connected to the housing 2.

  The antenna 300 receives an electric signal from the radio device 220, converts the electric signal into a radio wave, and radiates the radio wave around the telephone device 1. The antenna 300 captures radio waves from the surroundings of the telephone device 1, converts the captured radio waves into electrical signals, and gives the radio device 220. In the present embodiment, antenna 300 is an analog cordless telephone antenna that transmits and receives radio waves. The antenna 300 is a rod-shaped antenna and is realized by a dipole antenna, for example.

  The antenna 300 includes a conductor 301 for transmitting / receiving radio waves and a cylindrical protective member 302 that covers the conductor 301 exposed from the housing 2. The conducting wire 301 is electrically connected to the second wiring board 31 and passes through the internal space 20 of the protection member 302. As shown in FIG. 26, the antenna 300 has a rod-like appearance, and the sliding portion 302 a of the protection member 302 is inserted into the housing 2 of the telephone device 1. The sliding portion 302 a is provided to be rotatable around the antenna holder 305 and is angularly displaced relative to the telephone device 1. Further, the conductor 301 within the protection member 302 also rotates together with the protection member 302.

  The conductor 301 extends in a substantially L shape. One end portion 301a of the conductor 301 is provided with a connection terminal 303 for connection to the second substrate. The sliding portion 302 a of the protection member 302 has a sliding surface 304 that is bent from the protection member 302 body and slides with the antenna holder 305. The sliding surface 304 is formed in a cylindrical shape. When the sliding surface 304 is fitted into a holding portion 305a formed in the antenna holder 305, the antenna 300 is provided to be rotatable in the direction of the leading edge J shown in FIG.

  Further, the sliding portion 302a is guided by a fitting hole 365 formed in the housing 2, and allows the antenna 300 to rotate more smoothly.

  As shown in FIGS. 28 and 29, the housing 2 of the telephone device 1 is provided with an antenna holder 305. The antenna holder 305 protrudes in one direction from the housing 2 of the telephone device 1 and is detachably fixed to the housing 2 of the telephone device 1 by a screw member 306. The sliding portion 302 a is fitted to the housing 2 of the telephone device 1 and is rotatably connected to the antenna holder 305. As a result, the antenna 300 can be prevented from being pulled out from the casing 2 of the telephone device 1.

  Such an antenna 300 is disposed on an upper portion of a casing that covers the first wiring board. In the present embodiment, antenna 300 is connected to the upper part of casing 2 of telephone device 1 and outward. By being connected to the upper part, the antenna 300 can be separated from the casing 40 and is not subject to radio wave interference by the metal of the casing 40, so that the performance of the antenna 300 is ensured and radio wave transmission / reception is performed well. Can do. Further, the antenna 300 can be accommodated in a compact manner by being angularly displaced with respect to the telephone device 1.

FIG. 30 shows a schematic electrical configuration of the telephone device 1. The telephone device 1 includes a line capture circuit 201, a speech network 202, a switching circuit 203, a handset 51, a speaker 205, a dial circuit 206, an incoming call detection circuit 207, a caller telephone number reception circuit 208, a memory 209, a display unit 210, and VoIP. Available LED 211, PSTN (Public Switched
Telephony Network) LED 212, VoIP LED 213, operation panel 100, DSP (Digital Signal Processor) 215, ADSL modem 216, splitter 217, voice memory 218, answering machine DSP 219, radio 220, antenna 300, control unit 221, and router control Part 231.

  The control unit 221 includes a telephone control unit 222, a data processing control unit 223, a display control unit 224, an operation detection unit 225, a used line determination unit 226, a VoIP control unit 227, a DSP control unit 228, an ADSL control unit 229, and a radio control unit. 230.

  An ADSL modem 216, a VoIP control unit 227, a router control unit 231, a DSP 215, a DSP control unit 228, an ADSL control unit 229, a wireless communication card connector 72 and a LAN connector 73 shown in FIG. 30 are provided on the first wiring board 5. The ADSL modem 226 is realized by the ADSL chip 4A, the VoIP control unit 227 is realized by the VoIP chip 4B, and the router control unit 231 and the ADSL control unit 229 are realized by the CPU 4C.

  The line capture circuit 201 can close or open the PSTN line by a signal from the dial circuit 206 and can give the state to the telephone control unit 222 by a signal. The speech network 202 sends a reception signal from the PSTN line to the switching circuit 203, sends a transmission signal from the switching circuit 203 to the public telephone line network, or a DTMF (Dual Tone Multi Frequency) transmitted from the dial circuit 206. The signal is sent to the line acquisition circuit 201 for transmission to the PSTN line. The switching circuit 203 inputs voice signals from the speech network 202, the handset 51 and the DSP 215 in response to a control signal from the telephone control unit 222, and sends voice signals to the speech network 202, the handset 51, the speaker 205 and the DSP 215. Switch the signal path connection to output. The dial circuit 206 opens and closes the line capture circuit 201 to generate a dial pulse, or outputs a DTMF signal to the speech network 202 and sends it to the PSTN line.

  The incoming call detection circuit 207 detects a CAR signal or an IR signal coming from the PSTN line, and gives a signal to the telephone control unit 222. Here, the CAR signal is a signal sent before the caller's phone number notification service notifies the caller's phone number. When the phone signal is received, the phone captures the line and sets the caller's phone number. Receive. Further, the IR signal is an incoming ringing signal. Normally, when the telephone receives the IR signal, it rings a ringing tone from the speaker 205.

  A caller telephone number receiving circuit 208 receives and demodulates information such as a caller telephone number sent from the PSTN line, and acquires a caller telephone number serving as caller identification information. The memory 209 stores outgoing record and incoming call record data, information indicating the caller telephone number received at the time of answering and the line used.

  The telephone device 1 includes a display unit 210 using an LCD (liquid crystal display device), a VoIP usable LED 211 using an LED (light emitting diode), a PSTN LED 212, and a VoIP LED 213 as notification means. The display unit 210 displays information as a character string or a pictogram. The VoIP usable LED 211 is turned on when VoIP telephone communication is possible. The PSTN LED 212 is lit when a call is made or received using the PSTN line. The VoIP LED 213 is lit when an incoming / outgoing call of a VoIP telephone is performed using an ADSL line. These notification means are provided on the operation panel 100 for operating the telephone device 1.

  A DSP (Digital Signal Processor) 215 performs signal processing such as converting digital voice sent from the ADSL line into analog voice, or converting analog voice picked up by the handset of the handset 51 into digital voice. . The ADSL modem 216 modulates and demodulates a digital signal for transmission / reception using an ADSL line. The splitter 217 combines the signal of the PSTN line and the signal of the ADSL line and sends them to the subscriber line, or the signal sent from the telephone station via the subscriber line is the signal of the PSTN line and the signal of the ADSL line. Or can be separated.

  Further, the telephone device 1 is provided with an audio memory 218 for recording an answering message and an answering message DSP 215 for digitally recording and playing the answering message in order to realize the answering function. ing.

  The radio device 220 is connected to one or more slave devices via the antenna 300 by radio waves. You may make it connect by infrared rays or a wire communication. The slave unit can also communicate using the PSTN line and the ADSL line via the telephone device 1 serving as the master unit. In addition, the parent device and the child device can simultaneously communicate with each other using one and the other of the PSTN line and the ADSL line. Further, with the ADSL line, a plurality of telephone communication lines can be set, and the parent device and the child device or the plurality of child devices can perform telephone communication at the same time.

  The operation of the telephone device 1 is controlled by the control unit 221. The telephone control unit 222 controls operations for making, receiving, dialing, and performing an answering operation. The data processing control unit 223 performs control to write data such as a caller telephone number in the memory 209 or read it as browsing means. The display control unit 224 performs control to display various information on the display unit 210. The operation detection unit 225 monitors the operation panel 100 and gives a signal corresponding to the operation to the telephone control unit 222 when the operation is performed.

  The used line determination unit 226 functions as a determination unit that determines which line is used for the telephone number transmitted from the telephone control unit 222 and returns the result to the telephone control unit 222. The VoIP control unit 227 performs call control for making a VoIP telephone call, establishment of a PPP (Point-to-Point Protocol) session, and authentication with a VoIP server. The DSP control unit 228 controls the DSP 215. The ADSL control unit 229 controls the ADSL modem 216. The wireless control unit 230 controls the wireless device 220. The router control unit 231 is realized by the CPU 4C and executes routing of received data as described above.

  FIG. 31 is a diagram showing a configuration of equipment used for connecting the telephone device 1 and the personal computer 2 to the Internet. A line cord connection terminal 61 of the telephone device 1 and a modular outlet 195 connected to the public line network are connected by a communication cable 196. The telephone device 1 is supplied with power from the power source via the AC adapter 507. The personal computer 2 is connected to a LAN port 73 provided on the first wiring board 5 via a LAN cable 198.

  With the telephone device 1 of the present invention, the number of cables and the AC adapter 507 for communication can be reduced compared to the equipment configurations shown in FIGS. 38 and 39, space can be saved, and the degree of freedom in installation is improved. .

  FIG. 32 is a cross-sectional view showing a telephone device 600 similar to the telephone device 1 of the present invention. The telephone device 600 shown in FIG. 32 has the same configuration as that of the telephone device 1 described above except that the arrangement position of the first wiring board 5 and the casing 40 that accommodates the first wiring board 5 is different. Is omitted. The components of the telephone device 600 are denoted by the same reference numerals as the components of the corresponding telephone device 1.

  The first wiring board 5 extends vertically upward with respect to the second wiring board 31. That is, the second wiring board 31 extends in the vertical direction. The casing that houses the first wiring board 5 also extends upward in the vertical direction with respect to the second wiring board 31. Such a telephone device 600 can obtain the same effects as the telephone device 1 described above.

  FIG. 33 is a diagram illustrating a state of air flowing through the internal space 20 of the casing 2 of the telephone device 600. In FIG. 33, the flow of air is indicated by arrows. The air flows through the fourth vent hole 28 into the internal space 20 of the housing 2 by the tunnel effect. The air that has flowed into the housing passes through a through hole formed in the casing, and moves upward while touching the first wiring board 5. As it moves upward, the air takes heat from the first wiring board 5 and cools the first wiring board 5. The air whose temperature has risen due to the removal of heat from the first wiring board 5 passes through the through hole of the casing and is discharged to the outside of the casing 40, and further passes through the second vent hole 26 and the third through mechanism 27 to make a telephone call. Released to the outside of the device 600. Thus, it is possible to prevent the first wiring board 5 from being cooled by the air flowing in the housing 2 and malfunctioning of the first wiring board 5 due to heat.

  FIG. 34 is an enlarged cross-sectional view showing the vicinity of the upper portion of the casing 40 of the telephone device 600. The rear upper end 12A of the housing 2 has an inclined inner surface 331. The inner surface 331 is inclined rearward in the front-rear direction as it goes upward. For example, the inclination angle θ4 formed by the virtual horizontal plane and the inner surface 331 is designed to be, for example, 0 ° or more and 20 ° or less.

  As described above, the third ventilation hole 27 communicates the internal space 20 of the housing with the external space, and is provided rearward and upward in the front-rear direction. The third vent hole 27 may be provided in either the back cover member 15 or the upper cover member 22. The third vent hole 27 is preferably formed above the inner surface 331 of the rear upper end 12A of the housing 2.

  A part of the air that moves upward while touching the first wiring board 5 passes through the upper through hole 83 formed in the upper portion of the casing 40 and is formed on the inner surface formed in the rear upper end portion 12 </ b> A of the housing 2. It flows toward 331. The air is guided by the inner surface 331, moves rearward as it goes upward, and passes through the third ventilation hole 27. By guiding the air in this way, the heated air does not stay in the internal space 20 of the housing, and the internal space 20 of the housing can be prevented from becoming undesirably high temperature. In particular, the upper end portion of the housing 2 can be prevented from becoming high temperature.

  FIG. 35 is an enlarged cross-sectional view of the connection pin 801 of the first wiring board 5 of the telephone device 600. The first wiring board 5 and the second wiring board 31 are arranged at an angle of 90 degrees. The connection pins 801 of the first wiring board 5 are formed in an L shape. The connection pin 801 has one end side portion 806 extending perpendicularly from the first wiring substrate 5, a bent portion 805 bent by 90 degrees from the one end side portion 806, and the other end side portion 807 connected to the bent portion 805. The other end side portion 807 of the connection pin 801 is connected to the connector 802. By moving the first wiring board 5 downward and connecting the connection pin 801 and the connector 802, the electric wiring provided on the first wiring board 5 and the electric wiring provided on the second wiring board 31 are connected. Can be electrically connected.

  FIG. 36 is a cross-sectional view showing a telephone device 700 similar to the telephone device 1 of the present invention. FIG. 37 is an enlarged cross-sectional view showing the connection pins 801 of the first wiring board 5 of the telephone device 700. The telephone device 700 shown in FIG. 36 has the same configuration as the telephone device 1 described above except that the arrangement positions of the casings that house the first wiring board 601 and the first wiring board 31 are different, and the description thereof is omitted. . Each component of the telephone device 700 is given the same reference numeral as each component of the corresponding telephone device 1.

  The first wiring board 5 is inclined backward as it goes upward with respect to the second wiring board 31. Further, the casing that accommodates the first wiring board 5 is also inclined with respect to the second wiring board 31 from the front side to the back side and backward as it goes upward. Such a telephone device 700 can obtain the same effect as the telephone device 1 described above. The connector 802 of the second wiring board 31 is provided behind or behind the back surface of the first wiring board 5. The connection pin 801 is provided on the lower back surface of the first wiring board 5, protrudes from the insertion hole 77 provided in the lower portion of the casing 40 to the outside of the casing 40, and is connected to the connector 802. As a result, the casing and the first wiring board 5 can be immersed forward in the internal space 20 of the housing, and the telephone device 700 can be downsized in the vertical direction.

  The electronic circuit element 4 of each embodiment described above may be an electric element such as a transformer.

  In another embodiment of the present invention, a projecting portion projecting rearward may be formed on the side of the vent hole 6 facing the rear in a plan view of the communication device 1. This prevents the heated air flowing upward from the vent hole 6 and the normal temperature air flow flowing into the vent hole 6 from below the vent hole 6.

It is sectional drawing which shows the telephone apparatus 1 which is a communication apparatus of one Embodiment of this invention. FIG. 3 is a perspective view showing a part of the telephone device 1 by cutting away. It is the figure which looked at the operation part 14 from upper direction. 2 is a right side view of the telephone device 1. FIG. 2 is a left side view of the telephone device 1. FIG. 2 is a rear view of the telephone device 1. FIG. 6 is a rear view of the back cover member 15. FIG. It is sectional drawing which shows the back cover member 15 seen from the cut surface line II of FIG. 3 is a rear view of the first wiring board 5. FIG. 4 is a top view of the first wiring board 5. FIG. 4 is a left side view of the first wiring board 5. FIG. 4 is a rear view of the casing 40. FIG. 3 is a front view of a casing 40. FIG. 3 is a top view of the casing 40. FIG. 4 is a bottom view of the casing 40. FIG. It is a casing 40 right side view. 3 is a left side view of the casing 40. FIG. It is sectional drawing seen from the cut surface line II-II of FIG. It is a top view which simplifies and shows the 2nd wiring board 31 of this invention. It is sectional drawing of the telephone apparatus 1 for demonstrating the flow of air.

It is a back view for demonstrating the flow of air. 3 is an enlarged sectional view showing a connection structure 800 between the first wiring board 5 and the second wiring board 31. FIG. 1 is a cross-sectional view of a telephone device 1. FIG. 2 is a top view of the telephone device 1. FIG. FIG. 3 is a rear view of the telephone device 1 with a back cover member 15 removed. 2 is a side view showing an external appearance of an antenna 300. FIG. 3 is a cross-sectional view showing an antenna 300. FIG. 4 is a cross-sectional view showing a state where an antenna 300 is connected to a housing 2. FIG. 4 is a cross-sectional view showing a state where an antenna 300 is connected to a housing 2. FIG. 1 shows a schematic electrical configuration of a telephone device 1. It is a figure which shows the structure of the installation used in order to connect the telephone apparatus 1 and the personal computer 2 to the internet. It is sectional drawing which shows the telephone apparatus 600 similar to the telephone apparatus 1 of this invention. 6 is a diagram showing a state of air flowing through the internal space 20 of the housing 2 of the telephone device 600. FIG. 4 is an enlarged cross-sectional view showing the vicinity of the upper portion of the casing 40 of the telephone device 600. FIG. 4 is an enlarged sectional view showing a pin member 801 of the first wiring board 5 of the telephone device 600. FIG. It is sectional drawing which shows the telephone apparatus 700 similar to the telephone apparatus 1 of this invention. 4 is an enlarged cross-sectional view showing a connection pin 801 of a first wiring board 5 of a telephone device 700. FIG. It is a figure which shows an example of a structure of the communication equipment used in order to connect the telephone 501 and the personal computer 502 to the internet. It is a figure which shows the other example of a structure of the equipment used in order to connect the telephone 501 and the personal computer 502 to the internet. It is a figure which shows the structure of the communication apparatus of a 1st prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Telephone apparatus 3 Electronic circuit apparatus 4 Electronic circuit element 5 1st wiring board 6 Ventilation hole 12 Case main body 13 Operation member 14 Operation part 15 Back cover member 16 Partition member 31 2nd wiring board 40 Casing 81 Through-hole 83 Upper through-hole 93 Lower through hole 300 Antenna 801 Connection pin 802 Connector

Claims (11)

An electronic circuit device that performs communication operation is housed in a housing,
The electronic circuit device includes a first wiring board and a second wiring board,
Wherein the first wiring board, an electronic circuit element which generates heat is the mounting tower,
The first wiring board is disposed in the housing,
The housing includes a housing body and a back cover member that is provided on the housing body and covers the first wiring board,
The first wiring board and the back cover member are inclined from the back side toward the front as they go from below to above,
Near the bottom and top of the first wiring board in the casing and on the back side of the casing among the back cover members, the inside and outside of the casing are opposed to the first wiring board. And vents communicating with the
The second wiring board is disposed on the bottom of the casing body in the casing,
The second wiring board is formed with a mounting region where an electrical element is mounted and a non-mounting region where the electrical element is not mounted,
The non-mounting area is provided below the first wiring board . Wherein the housing includes a heating space for accommodating the first wiring board, and the other remaining space of having a partition Ri member partitions, the partition Ri member, heated air from the heating space, The communication apparatus according to claim 1, wherein the communication apparatus prevents the remaining space from flowing into the remaining space. The housing is
Including an operation unit provided with an operation member that is inclined upward as it goes from the front to the back of the housing body and is operated for communication;
The communication device according to claim 1, wherein the first wiring board is erected on the housing main body behind the operation unit. Wherein the housing main body, the partition Ri member is formed me rising from the bottom behind closer,
The behind the partition Ri member, the first wiring substrate is disposed,
The vent hole formed near the lower portion and near the upper portion of the first wiring board in the housing is formed in at least one of the housing body and the back cover member. The communication device described. The first wiring board is housed in an electromagnetic shielding metal casing,
In this electromagnetic shielding metal casing, a plurality of through holes communicating between the inside and the outside of the casing are formed in a dotted manner.
Claim ratio of the opening areas of the through holes per unit area of the electromagnetic field shielding metal casing is larger in the vicinity of the electronic circuit elements to the heat generation, in an off farther away position, characterized in that it is selected to be smaller The communication apparatus according to one of 1-4. The lower portion of the electromagnetic field shielding metal casing has a vertical first base on the first wiring board built, and a second base portion having an angle θ1 of less than 90 degrees with respect to first base portion,
The communication device according to claim 5, wherein the first wiring board is attachable to a partition member. Among pre Symbol first wiring board and the second wiring board, the ends of the flexible line connected to either have been fixed to the other one of the first wiring board and the second wiring board The communication apparatus according to claim 6, wherein the communication apparatus is detachably connected to the connector. An air passage is formed between the upper part of the electromagnetic shielding metal casing and the inner surface of the housing, and the air passing through the air passage is formed in the housing near the upper portion of the first wiring board. The communication device according to claim 5, wherein the communication device is discharged from a pore. The electronic circuit device includes a rod-shaped antenna,
9. The antenna according to claim 5, wherein the antenna is rotatable outwardly from the electromagnetic shielding metal casing and near an upper portion of the electromagnetic shielding metal casing and protrudes upward. The communication apparatus according to one of the above. Said communication device is a telephone device connected to the Internet, electronic circuit elements that the exotherm communication apparatus according to one of claims 1-9, characterized in that the router controller.   The protrusion part which protrudes in the back is formed in the back side of the case among the back cover members so that the air flow of the ventilation hole which faces the back may not be disturbed. The communication device according to one of 10.

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