JP2001227810A - Outdoor hood with damper function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealing property of an outdoor hood having a damper function and hence suppress invasion of moisture to an indoor side. SOLUTION: A rotatable damper 21 is provided on a hood 7. A wire 22 is coupled with the damper 21 through a temperature fuse 50, which wire 22 is wound with a wind drum 23 to open an exhaust hole 31 in the hood 7. The damper 21 is energized by self weight thereof and by a gas spring 25 in its closed state to press a packing member 33 mounted on a peripheral edge of the exhaust hole 31. Hereby, sealing property of the hood 7 is kept intact upon the exhaust hole 31 being closed to suppress invasion of moisture and dust from the exhaust hole 31 to an indoor side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor hood with a damper function, and more particularly to an outdoor hood with a damper function installed in a radio station such as a portable telephone that relays radio waves.

[0002]

2. Description of the Related Art In recent years, mobile phones have become widespread, and along with this, a large number of radio stations for relaying radio waves of mobile phones have been constructed. By the way, such relay stations are becoming increasingly unmanned, and the relay station functions only by installing relay communication equipment. As described above, in recent years, the radio station building has become more and more unmanned, but maintenance associated therewith is important. In other words, various communication devices and a battery serving as a power source are collectively arranged inside the radio station building, and the temperature of the radio station building rises due to the exhaust heat of the communication devices. As a result, the room temperature rises, and in the winter, the temperature drops. Since such a temperature change has an adverse effect on communication equipment, it is desirable to keep the room temperature, humidity, and the like of the wireless station building constant throughout the four seasons. For this reason, this type of radio station building is provided with air conditioning equipment such as an air conditioner and a ventilation device.

[0003] By the way, a general ventilator is provided with a ventilation fan located on the indoor side of a ventilation hole formed in a wall surface, so that wind and rain do not directly enter the outside from the ventilation hole.
A hood that covers the ventilation holes is attached. Some of such outdoor hoods include an opening / closing mechanism for opening and closing a ventilation passage of the hood. For example, an outdoor hood provided with a ventilation fan is known in which a plurality of louvers are pivotally supported on a mounting frame mounted inside the hood. In Japanese Patent Application Laid-Open No. 8-61766, a damper is rotatably supported in a hood, and the damper is urged in a closing direction by a spring, and a temperature fuse for supporting the damper is provided. There is also known a ventilation fan with a fireproof damper configured to melt a fuse and forcibly close the damper with a spring.

However, in the former case having a plurality of louvers, when each louver is closed, a slight gap is formed between the louvers, and moisture enters into the room from the gap. That is, since each louver is structurally rotatably supported on a mounting frame or the like, it is necessary to provide a clearance between the movable portion of each louver and the mounting frame, and the hood is not completely shielded by the louver. It is. On the other hand, in a ventilation fan with a fireproof damper that opens and closes the hood with a damper, the temperature fuse is melted in an emergency such as a fire to forcibly close the damper. That is, in the event of an emergency such as a fire, the ventilation passage of the hood is closed by the damper, but otherwise the damper is open and the imperviousness is inferior as in the mechanism provided with the louver described above. Therefore, moisture enters the room through the ventilation holes. Therefore, when installing in a radio station building that relays radio waves such as mobile phones,
There is a possibility that dew condensation may occur in the room due to the moisture that has entered the room. For this reason, when dew condensation occurs on the communication device housed therein, it may have a serious adverse effect on the communication device. In addition to the moisture, dust such as fine dust and dust may enter the room through the ventilation holes, and may adversely affect the communication devices housed therein.

The present invention is intended to solve such a problem, and an outdoor hood with a damper function capable of improving the airtightness of the outdoor hood and suppressing the invasion of moisture, dust and the like to the indoor side. The purpose is to provide.

[0006]

According to a first aspect of the present invention, there is provided an outdoor hood having a damper function, comprising: a vent hole opened in a wall surface; a hood fixed outside so as to cover the vent hole;
A damper rotatably provided in an air passage of the hood and urged in a closing direction, a sealing member that is in close contact with the damper when the damper is closed, and seals an exhaust hole of the hood; And an opening / closing mechanism for opening and closing.

[0007] Since the damper is urged to be pressed against the sealing member attached to the hood, when the damper is closed, the sealing member and the damper come into close contact with each other to close the ventilation path of the hood. Thereby, the airtightness of the hood when the damper is closed is enhanced, and it is possible to reliably block moisture, dust, and the like that enter the room through the ventilation passage.

The outdoor hood with a damper function according to a second aspect of the present invention is the outdoor hood with a damper function according to the first aspect, wherein the opening and closing mechanism includes a wire connected to the damper and a winding device for winding the wire. And a control means for controlling the opening / closing mechanism based on a detection signal for detecting a room temperature.

Thus, when the room temperature is out of the predetermined level, the detection means detects this, and the opening and closing of the hood is automatically controlled based on the detection signal from the detection means.

The outdoor hood with a damper function according to a third aspect of the present invention is the outdoor hood with a damper function according to the second aspect, wherein a temperature fuse is incorporated in a part of the wire. The fuse blows and the damper closes automatically. At this time, the damper is pressed against the sealing member, and the ventilation path of the hood is reliably blocked, so that the supply of air to the indoor side is shut off. As a result, the fire is extinguished earlier, and the flame of the fire does not come out of the exhaust hole of the hood, so that the spread of the fire is suppressed.

According to a fourth aspect of the present invention, there is provided an outdoor hood with a damper function according to any one of the first to third aspects, wherein the outdoor hood with a damper function transmits radio waves from a portable telephone or the like. It is provided in the radio station building to be relayed. As a result, it is possible to enhance the shielding property of the ventilation path of the wireless station building in which various communication devices are housed, and to suppress the adverse effects of the communication devices due to dew condensation due to intrusion of moisture or intrusion of fine dust.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 4 show one embodiment of the present invention, in which 1 is a radio station building, and an outer wall panel 3 made of an aluminum panel is mounted on a support form 2 erected on the front, rear, left and right by rivets or other suitable means. To form a substantially rectangular parallelepiped.

Reference numeral 5 denotes a ventilation hole formed in the outer wall panel 3. In this embodiment, the ventilation hole is formed in a door 1A provided on the front surface and one side surface of the radio station building 1. A ventilation unit 6 is provided on the indoor side of the ventilation hole 5, and a hood 7 for covering the ventilation hole 5 is provided outside the radio station building 1. The ventilation unit 6 includes a ventilation fan 8 and a motor 9 as a driving means of the ventilation fan 8. A mounting frame 10 for fixing the ventilation fan 8 and the motor 9 is fixed to the inner surface of the outer wall panel 3. It is fixed at 11. The ventilation unit 6 fixed in this manner is disposed inside the hood 7. The hood 7 is bent in an inverted L shape so as to cover the ventilation hole 5, and has an intake port 15 facing the ventilation hole 5 at one end and an exhaust port 16 opened to the outside at the other end. ing. An opening 17 is formed on the front side of the hood 7,
A damper unit 20 is provided facing the opening 17. The damper unit 20 includes a damper 21 for opening and closing the ventilation path 7A of the hood 7, and a wire connected to the damper 21.
It is composed of 22 winding drums 23 and a motor 24 for driving the winding drum 23. The damper 21 is pivotally attached to the hood 7 so as to be able to move up and down so that the air passage 7A of the hood 7 is closed by its own weight. A gas spring 25 is connected to the damper 21 so as to close the damper 21. Also,
L-shaped brackets 26 and 27 are fixed above and below an opening 17 formed in the front surface of the hood 7, respectively, the motor 24 is fixed to an upper bracket 26, and a lower bracket 26
The damper 21 is rotatably pivoted up and down by a hinge member 28. That is, with the rotation of the motor 24, the winding drum 23 winds the wire 22 against the urging force of the gas spring 25, whereby the hood 7 rotates in the upright direction to open the ventilation path 7A, And,
By the reverse rotation of the motor 24, the hood 7 rotates in the closing direction by its own weight and the urging force of the gas spring 25, and the wires connected to these dampers 21
An opening / closing mechanism for the damper 21 is constituted by a winding drum 23 of 22, a motor 24 for driving the winding drum 23, and a gas spring 25 for urging the damper 21 in the closing direction.

The exhaust port 16 of the hood 7 has an edge frame 30.
Is provided. The edge frame 30 has a horizontal surface 30A having an exhaust hole 31 and a vertical surface 30B which is bent from the periphery of the horizontal surface 30A into an L shape and fixed to the inner peripheral surface of the hood 7, and is formed on the horizontal surface 30A. Damper 21 on the inner peripheral surface of the exhaust hole 31
A packing member 33 is mounted as a sealing member that is in close contact with the sealing member. Outside the packing member 33, a flame-retardant receiving member 34 made of metal or the like, which comes into contact with the damper 21 when the packing member 33 is bent, is fixed. Reference numeral 35 denotes a cover for covering the front opening 17 of the hood 7, and reference numeral 36 denotes the radio station building 1.
An air conditioner such as an air conditioner attached to the ceiling of the wireless communication station 1 is a communication device installed inside the wireless station building 1.

Next, the configuration of the control means 40 will be described with reference to FIG. The control means 40 includes a room temperature sensor 41 for detecting the room temperature of the radio station building 1, a sensor 42 attached to the tip side of the hood 7, and an upper limit for being attached inside the hood 7 and detecting opening and closing of the hood 7. It controls power supply and cutoff of the power supply 45 to the motor 24 based on signals from the sensor 43 and the lower limit sensor 44. Then, the motor 24 of the damper unit 20 is energized based on a signal from a room temperature sensor 41 that detects the room temperature of the wireless station building 1, and the sensor 42 attached to the hood 7 and each sensor attached to the hood 7
The energization of the motor 24 is controlled by 43 and 44. That is,
When the room temperature of the wireless station building 1 becomes higher than a predetermined value, for example,
Electric power is supplied to the motor 24 of the damper unit 20, and the motor 24 rotates forward. With the forward rotation of the motor 24, the damper 21 rotates in the upright direction against its own weight and the urging force of the gas spring 25. When the sensor 42 attached to the damper 21 faces the upper limit sensor 43 of the hood 7, a signal from the upper limit sensor 43
Of the motor 24 is stopped. On the other hand, when the room temperature of the wireless station building 1 returns to the predetermined level, the motor 24 of the damper unit 20 rotates in reverse according to the detection signal from the room temperature sensor 41,
The damper 21 rotates downward by the urging force of the gas spring 25. When the sensor 42 attached to the damper 21 faces the lower limit sensor 44 of the hood 7, the motor 24 of the damper unit 20 receives a signal from the lower limit sensor 44.
Power supply to is stopped. The motor 9 of the ventilation fan 8
It is preferable to control the wireless station building 1 unmanned by controlling it in synchronization with the motor 24 of the damper unit 20 based on a signal from the room temperature sensor 41 for detecting the room temperature of the wireless station building 1. The motor 9 of the ventilating fan 8 and the motor 24 of the damper unit 20 may be manually operated by a switch (not shown) provided in the unit.

Next, the fire prevention function of the ventilation unit 6 will be described. A temperature fuse 50 is connected to an end of the wire 22 wound by the winding drum 23, and the temperature fuse 50 is connected to the damper 21. That is, when a fire occurs in the room and the temperature of the ventilation path 7A becomes abnormally high, the temperature fuse 50 is blown, and the damper 21 rotates in the closing direction due to the weight of the damper 21 and the urging force of the gas spring 25, and the exhaust hole is opened.
The exhaust hole 31 is in close contact with the packing member 33 attached to the periphery of
To close. When the damper 21 is closed, the packing member 33 is pressed by the damper 21 and slightly compressed, so that the damper 21 contacts not only the packing member 33 but also the receiving member 34 provided outside the packing member 33. . For this reason, even if the packing member 33 is burned out due to a fire, even if the damper 21
Is tightly adhered to the receiving member 34, so that the sealing property of the damper 21 is maintained. Thus, the fire can be weakened by shutting off the supply of air to the indoor side.

The operation of the embodiment constructed as described above will be described. Normally, the ventilation unit 6 attached to the radio station building 1 is stopped, and the damper 21 for opening and closing the ventilation hole 5 is provided.
Is also closed. Then, for example, when the room temperature is abnormally high, the motor 24 of the damper unit 20 is rotated by the detection signal from the room temperature sensor 41. As a result, the wire 22 connected to the damper 21 is wound up, and the damper 21 rotates upward against the dead weight of the damper 21 and the urging force of the gas spring 25. When the sensor 42 attached to the damper 21 rotates to a position facing the upper limit sensor 43 fixed to the hood 7, the upper limit sensor 43 detects the upper limit position of the hood 7, that is, the hood 7 is fully opened. . The rotation of the motor 24 is stopped by the detection signal from the upper limit sensor 43, and the damper 21 also stops when the motor 24 stops. That is, the damper 21 is held at the fully open position, the exhaust hole 31 of the hood 7 opens, and the ventilation path 7A of the hood 7 opens. Thereby, with the rotation of the ventilation fan 8, the air on the indoor side flows from the ventilation hole 5 to the ventilation path 7 </ b> A of the hood 7.
The air is discharged from the exhaust hole 31 through the air passage. Then, when the room temperature reaches a predetermined level, the motor 24 of the damper unit 20 is rotated in reverse by a signal from the room temperature sensor 41, and the damper 21
Due to its own weight and the urging force of the gas spring 25, it rotates downward. When the sensor 42 attached to the damper 21 rotates to a position facing the lower limit sensor 44 fixed to the hood 7, the lower limit sensor 44 causes the lower limit position of the hood 7, that is, the hood 7 to be fully closed. The rotation of the motor 24 is stopped by the detection signal from the lower limit sensor 44, and the damper 21 is also stopped. At this time, damper 21
Is the exhaust hole of the hood 7 by its own weight and the gas spring 25
It is pressed against the packing member 33 attached to the inner periphery of the 31, and seals the exhaust hole 31 with the packing member 33 slightly compressed. At this time, since the packing member 33 bends in the compression direction, the damper 21 includes the packing member 33 and the packing member 33.
The exhaust hole 31 is also hermetically sealed by contacting the receiving member 34 disposed on the outside. Thereby, the packing member 33, the receiving material
The exhaust hole 31 can be multiple-sealed by 34, so that moisture and dust do not enter the room from the exhaust hole 31 through the ventilation path 7A of the hood 7.

When a fire occurs during ventilation, the temperature fuse 50 attached to the end of the wire 22 is blown and the support of the damper 21 is lost.
Due to its own weight and the urging force of the gas spring 25, it rotates in the closing direction and closes the exhaust hole 31 with the packing member 33 slightly compressed, and the damper 21 comes into contact with the packing member 33 and the receiving member 34 to exhaust the exhaust hole. Seal 31. This functions as a fire damper that cuts off the fire by shutting off the supply of air to the indoor side. Further, even if the packing member 33 is burned down by a fire, the flame-retardant receiving member 34 remains, so that the exhaust hole 31 can be securely sealed and the function as a fireproof damper can be maintained.

As described above, according to the outdoor hood with a damper function of the embodiment of the present invention, in a state where the hood 7 is closed, the damper 21 is pressed against the packing member 33 attached to the exhaust hole 31 of the hood 7, 7 can be closed in an airtight state. Thus, in a state where the hood 7 is closed, the airtightness of the wireless station building 1 is improved, and the invasion of moisture, dust, and the like from the exhaust hole 31 can be prevented. Therefore, it is possible to prevent dew condensation due to moisture and the like, and also to suppress intrusion of dust and the like into the room, thereby suppressing adverse effects on the communication device 37 due to dew condensation and dust and the like. Further, since the opening and closing of the hood 7 is automatically controlled in accordance with the room temperature, the opening and closing operation of the hood 7 is unnecessary, and the operability is excellent. Further, when a fire occurs, the temperature fuse 50 is blown and the damper 21 can be automatically closed. Also at this time, the damper 21 can be pressed against the packing member 33 attached to the exhaust hole 31 of the hood 7 and reliably shielded, so that the supply of air to the indoor side is cut off, so that the fire can be extinguished more quickly. At the same time, since the flame of the fire does not come out of the exhaust hole 31, the spread of the fire can be suppressed. further,
Flame-retardant receiving material even if packing member 33 burns out due to fire
Since 34 remains, it can maintain its function as a fire damper.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments.
Various modifications can be made within the scope of the present invention.
For example, the basic configuration such as the opening and closing mechanism of the damper is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. In addition, although an example has been described in which a gas spring is provided as an auxiliary to reliably bias the damper in the closing direction, this may be omitted. In addition to the biasing in the closing direction by its own weight, the damper may be biased in the closing direction by a method such as a spring, a torsion spring, or a balance weight.
Further, the example in which the exhaust hole is sealed by the damper and the packing member has been described. However, a seal material made of a synthetic resin or the like having good adhesion may be used. In other words, the seal member may be in contact with the damper to seal the exhaust hole. I just need. In the above embodiment, the ventilation unit is attached to the hood, but the ventilation unit can be omitted. Further, the basic configuration of the radio station building is not limited to the above embodiment.
In addition, in the present embodiment, the wireless station building is described as an example, but the present invention is not necessarily limited to the wireless station building.

[0021]

According to the outdoor hood with a damper function of the first aspect of the present invention, a ventilation hole opened on the wall, a hood fixed outside so as to cover the ventilation hole, and an air passage of the hood A damper rotatably provided and biased in the closing direction, a sealing member that is in close contact with the damper when the damper is closed, and seals an exhaust hole of the hood, and an opening and closing mechanism that opens and closes the damper Since it is equipped with
By increasing the shielding property of the hood, it is possible to reliably block moisture, dust, and the like that enter the room through the ventilation passage.

According to the outdoor hood with a damper function of the second aspect of the present invention, in the outdoor hood with a damper function according to the first aspect, the opening / closing mechanism includes a wire connected to the damper and a winding wire for winding the wire. Since it is configured with a picking device and provided with control means for controlling the opening and closing mechanism based on a detection signal for detecting a room temperature, the opening and closing of the hood can be automated according to the room temperature.

The outdoor hood with a damper function according to a third aspect of the present invention is the outdoor hood with a damper function according to the second aspect of the present invention, in which a temperature fuse is incorporated in a part of the wire. The fuse blows and the damper closes automatically. At this time, since the ventilation path of the hood is reliably blocked, shutting off the supply of air to the indoor side hasten the fire extinguishing, and the flame of the fire does not come out of the exhaust hole of the hood, so the fire spreads. Is also suppressed.

According to the outdoor hood with a damper function of claim 4 of the present invention, in the outdoor hood with a damper function according to any one of claims 1 to 3, the outdoor hood with a damper function is used for a portable telephone or the like. Since it is provided in a wireless station building that relays radio waves, it is possible to enhance the shielding properties of the ventilation path of the wireless station building and suppress adverse effects on the communication equipment due to dew condensation or intrusion of fine dust.

[Brief description of the drawings]

FIG. 1 is a sectional view of an outdoor hood with a damper function showing one embodiment of the present invention.

FIG. 2 is a front view showing the wireless station building;

FIG. 3 is an enlarged sectional view showing a closed state of the damper.

FIG. 4 is a block diagram of the electric system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radio station building 5 Ventilation hole 7 Hood 7A ventilation path 21 Damper 22 Wire (opening / closing mechanism) 23 Winding drum (opening / closing mechanism) 24 Motor (opening / closing mechanism) 25 Gas spring (opening / closing mechanism) 31 Exhaust hole 33 Packing member (sealing) Components) 40 Control means 50 Temperature fuse

Claims (4)

[Claims] 1. A ventilation hole opened in a wall surface, a hood fixed outdoors so as to cover the ventilation hole, and provided in a ventilation path of the hood so as to be rotatable and urged in a closing direction. An outdoor hood with a damper function, comprising: a damper, a sealing member that is in close contact with the damper when the damper is closed, and seals an exhaust hole of the hood, and an opening and closing mechanism that opens and closes the damper. 2. The opening / closing mechanism comprises a wire connected to a damper and a winding device for winding the wire, and a control means for controlling the opening / closing mechanism based on a detection signal for detecting room temperature. 2. The method according to claim 1, wherein
Outdoor hood with damper function as described. 3. The outdoor hood with a damper function according to claim 2, wherein a thermal fuse is incorporated in a part of said wire. 4. The outdoor hood with a damper function according to claim 1, wherein the outdoor hood with a damper function is provided in a wireless station building for relaying radio waves such as a mobile phone. hood.