JP2019129815A - Ventilation device - Google Patents

Abstract

To provide a ventilation device attracting flying insects using gas for attracting the flying insects and discharging them to the outdoors.SOLUTION: A ventilation device includes: a suction port 3 partitioned by four sides at the front face of a housing 2 and exhausting indoor air; an exhaust port 4 exhausting sucked air; an air duct 5 communicating the suction port 3 and the exhaust port 4; a suction port cover 8 formed so as to have an area larger than that of the suction port 3 and disposed with a gap 11 from the suction port 3; and a gaseous substance generating part 9 generating gaseous substance attracting mosquitos. The gaseous substance generating part 9 is mounted so as to cover the gap 11 formed by one side of the four sides and the suction port cover 8 on the outside of the suction port 3, so that the generated gaseous substance can be actively dispersed in an indoor direction without being immediately exhausted, the mosquitos are attracted near the ventilation device 1 and the flying insects in the room can be efficiently discharged from the ventilation device 1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilating device for discharging indoor air to the outside in a ventilating device for discharging indoor air to the outside.

  Conventionally, as a ventilator for discharging this kind of flying insects to the outside, there is known a device equipped with an attracting part for attracting flying insects in the vicinity of a suction opening and a fan for generating an exhaust flow. That is, as shown in FIG. 4, a light source is provided as an attracting unit 102 near the suction port 101, and flying insects approaching the attracting unit 102 are blown by airflow generated by using a motor 103 and a fan 104 in the air path. It was a ventilator that sucks into the road and discharges it outside the room (for example, see Patent Document 1).

  An insect trap has also been developed that attracts flying insects by generating an attracting gas in front of the fan to attract flying insects and attracts the flying insects attracted by the airflow generated by the fan (see, for example, Patent Document 2).

JP-A-10-227503 Japanese Patent Laying-Open No. 2015-6401

  Such a conventional ventilator that discharges flying insects to the outside attracts flying insects using light, but it has a low attraction effect by light against mosquitoes such as Aedes albopictus and Aedes aegypti that transmit dengue fever etc. Therefore, there was a problem that the effect on highly dangerous mosquitoes was insufficient.

  In addition, the trapping device that generates carbon dioxide, which is said to be highly effective against mosquitoes, diffuses the generated carbon dioxide by the fan installed in the subsequent stage of itself, and the attracting gas does not stay near the inlet, There was a problem that flying insects could not be attracted enough.

  The present invention solves such a conventional problem, and an object of the present invention is to provide a ventilator capable of generating an attracting gas in the vicinity of a suction port and efficiently discharging indoor flying insects to the outside.

  In order to achieve this object, a ventilator according to the present invention comprises a suction port that is partitioned by four sides on the front surface of a housing and discharges indoor air, an exhaust port that discharges the sucked air, and the suction port. An air passage communicating with the exhaust port, a motor and a fan for generating an air flow from the indoor side to the outdoor side provided in the air passage, and a panel formed with a larger area than the opening area of the suction port And a suction port cover arranged with a gap between the suction port and a gaseous substance generating part for generating a gaseous substance that attracts mosquitoes, the gaseous substance generating part, The ventilation device is provided so as to cover the gap on the outside of one side of the suction port and discharges a gaseous substance to the indoor side, and thereby achieves an intended target.

  The ventilator according to the present invention includes a suction port provided on the indoor side, a discharge port provided on the outdoor side, an air passage communicating the suction port and the discharge port, and the air passage. A housing provided with a fan and a motor for generating an airflow from the indoor side toward the outdoor side, and a louver covering the suction port of the housing, wherein the louver blades are directed from the upstream side toward the downstream side. It is a ventilating device that is arranged with an inclination in the diagonally downward direction, and has a gas release part for releasing the gas that attracts mosquitoes to the indoor side at the bottom of the casing, thereby achieving the intended purpose To do.

  In the present invention, a suction port that is partitioned by four sides on the front surface of the housing and discharges indoor air, an exhaust port that discharges the sucked air, an air passage that communicates the suction port and the exhaust port, A motor and a fan that generate an air flow from the indoor side to the outdoor side provided in the air passage, and a panel formed with an area larger than the opening area of the suction port, and a gap between the suction port and the panel A suction port cover and a gaseous substance generating part for generating a gaseous substance that attracts mosquitoes, and the gaseous substance generating part covers the gap outside one side of the suction port. It was set as the structure provided in.

  According to the configuration of the present invention, one of the suction ports defined by the four sides on the front surface of the housing is covered with the gaseous substance generating unit, so that the room air is not discharged from the partition, It will be discharged from the compartment. Therefore, the gaseous substance generated from the gaseous substance generating part can be actively diffused in the room direction without being immediately discharged outside the room.

  As a result, mosquitoes can be attracted to the vicinity of the ventilation device, and indoor flying insects can be efficiently discharged from the ventilation device.

  In addition, a suction port provided on the indoor side, a discharge port provided on the outdoor side, an air passage communicating the suction port and the discharge port, and an air flow provided in the air passage toward the outdoor side from the indoor side And a louver that covers the suction port of the housing, and the louver of the louver is inclined obliquely downward from the upstream side toward the downstream side. The gas discharge part for releasing the gas which attracts | sucks a mosquito to the indoor side was installed in the lower part of the said housing | casing.

  This opens the panel diagonally upward and generates mosquito attracting gas from the lower part of the main unit, making it easy to create an air retaining part at the lower part of the ventilator, and storing the mosquito attracting gas in the retaining part Thus, the attracting gas can be diffused indoors. That is, while performing ventilation, a concentration gradient of the attracting gas can be formed from the ventilator toward the room side, and mosquitoes can be continuously attracted, and indoor flying insects can be efficiently discharged from the ventilator.

Side surface sectional drawing which shows the ventilation apparatus of Embodiment 1 of this invention Side surface sectional drawing which shows the ventilation apparatus of Embodiment 2 of this invention Schematic when installing the ventilation system in a house Side surface sectional view which shows the ventilation apparatus of Embodiment 3 Schematic when installing the ventilation system in a house Side sectional view showing a conventional ventilation system

  A ventilator according to claim 1 of the present invention includes a suction port that is partitioned by four sides on the front surface of the housing and discharges indoor air, an exhaust port that discharges the sucked air, the suction port, and the exhaust port. A panel that is formed with a larger area than the opening area of the suction port, and a motor and a fan that generate an air flow from the indoor side to the outdoor side provided in the air path. A suction port cover disposed with a gap between the suction port and a gaseous substance generating unit that generates a gaseous substance that attracts mosquitoes, wherein the gaseous substance generating unit is provided on one side of the suction port. The ventilator is provided so as to cover the gap on the outside, and discharges a gaseous substance to the indoor side.

  As a result, one of the four gaps formed between the four sides of the front surface of the housing and the suction port cover is covered with the gaseous substance generating unit, and thus the room air is not discharged from the gap. It will be discharged from other gaps. Therefore, while ventilating, the gaseous substance generated from the gaseous substance generating part can be diffused while forming a concentration gradient of the attracting gas from the ventilator to the room side without being immediately discharged outside the room. Therefore, mosquitoes can be attracted to the vicinity of the ventilation device, and indoor flying insects can be efficiently discharged from the ventilation device.

  The ventilator according to claim 2 is characterized in that the gaseous substance generated in the gaseous substance generation part contains at least carbon dioxide.

  Since mosquitoes can be detected from a long distance even with a slight carbon dioxide concentration gradient, even a small amount of carbon dioxide can exert an attracting effect over the entire room.

  This makes it possible to attract mosquitoes that target blood-sucking people, such as mosquitoes and human mosquitoes, that could not be attracted sufficiently by conventional insect trapping devices using a light source, and discharge them outside the room. it can.

  The ventilator according to claim 3 is characterized in that the gaseous substance generating part is provided on the lower side of the suction port.

  As a result, gaseous substances containing carbon dioxide having a molecular weight greater than that of air are likely to diffuse downward, so that the generated gaseous substances can be efficiently diffused indoors, and the mosquitoes can reach the vicinity of the ventilator. Can be attracted.

  The ventilator according to claim 4 alternately rotates and stops the fan when the ventilator is operating, releases the gaseous substance from the gaseous substance generating part when the fan is stopped, and releases the gaseous substance when the fan rotates. It is characterized by not.

  Thereby, the state where the concentration of the generated gaseous substance is temporarily high in the vicinity of the suction port of the ventilator can be maintained. By attracting flying insects to the gaseous substance having a high concentration, flying insects gather near the suction port and can be discharged from the ventilator.

  Among them, mosquitoes that target humans for sucking blood, such as Aedes albopictus, Aedes aegypti, and Culex pipiens, are known to have an attractive effect that is increased by intermittent generation of carbon dioxide compared to the continuous occurrence. It exhibits a particularly attractive effect on flying insects that are highly dangerous in terms of disease transmission.

  Further, the ventilator according to claim 5 is characterized in that a heat source is provided in a part or all of the outer peripheral portion of the suction port cover that is not in contact with the gaseous substance generating part.

  Mosquitoes sense the source of heat and have the property of trying to stop at an appropriate temperature. Mosquitoes approaching the ventilator are guided into the air passage from the suction port into part or all of the outer periphery of the inlet cover that does not come into contact with the gaseous substance generating part, and efficiently from the ventilator. Can be discharged.

  A ventilation device according to claim 6 is provided in the air passage, a suction port provided on the indoor side, a discharge port provided on the outdoor side, an air passage communicating the suction port and the discharge port, and And a housing that includes a fan and a motor for generating an air flow from the indoor side to the outdoor side, and a panel that covers the suction port of the housing, and a wing plate is provided in the opening of the panel from the upstream side. A gas discharge part is installed to be inclined obliquely downwardly toward the downstream side, and a gas releasing part for releasing a gas attracting mosquitoes to the indoor side is installed in the lower part of the casing.

  This opens the panel diagonally upward and generates mosquito attracting gas from the lower part of the main unit, making it easy to create an air retaining part at the lower part of the ventilator, and storing the mosquito attracting gas in the retaining part Thus, the attracting gas can be diffused indoors. That is, while performing ventilation, a concentration gradient of the attracting gas can be formed from the ventilator toward the indoor side, and mosquitoes can be continuously attracted.

  The ventilator according to claim 7 is characterized in that the gas discharged from the gas discharge portion contains carbon dioxide.

  Thus, carbon dioxide is relatively light among the gases that attract mosquitoes, and has a property of easily diffusing into the indoor side, so that it can exert an attracting effect on mosquitoes widely throughout the room. Carbon dioxide is a heavier gas than air, and if it is generated from the lower part of the ventilator body, it diffuses in the downward direction opposite to the air intake of the ventilator. The mosquito attracting effect can be demonstrated. Furthermore, carbon dioxide is known to attract a wide variety of blood-sucking mosquitoes, including not only Yabuca but also squid, which can reduce the risk of blood sucking by mosquitoes indoors.

  Moreover, the ventilator which concerns on Claim 8 contains any one or more gas of lactic acid, octenol, and ammonia in the gas discharge | released from a gas discharge part.

  As a result, lactic acid, octenol, and ammonia gases are common with odor components contained in the breath and sweat of living organisms, and because they exist together with carbon dioxide, they have the effect of enhancing the attracting effect on mosquitoes. More mosquitoes can be attracted to the vicinity and discharged outside the room.

  Moreover, the ventilator which concerns on Claim 9 makes the wing board of the said panel black.

  As a result, blood-sucking mosquitoes are attracted to black substances, and in the presence of attracting gas, the frequency of blood-sucking behavior on black objects increases. It is possible to guide and discharge until.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a side sectional view showing a ventilation device 1 according to the present embodiment. The ventilation device 1 is attached through the wall surface of the room.

  As shown in FIG. 1, the ventilator 1 has a housing 2 that includes a suction port 3 that discharges indoor air and an exhaust port 4 that discharges the sucked air.

  Inside the housing 2, there are provided an air passage 5 that communicates the suction port 3 and the exhaust port 4, and a motor 6 and a fan 7 that are provided in the air passage 5 and generate an airflow from the indoor side toward the outdoor side. ing.

  On the front surface of the housing 2, a panel-like suction port cover 8 formed with a larger area than the opening area of the suction port 3, a gaseous substance generating unit 9 for generating a gaseous substance that attracts mosquitoes, And a heat source 10.

  The suction port cover 8 is disposed with a gap 11 between the suction port cover 3 and the suction port 3. The suction port 3 is partitioned by four sides on the front surface of the housing 2. That is, when the ventilator 1 is viewed from the front, the suction port 3 has four parts: an upper side, a lower side, a left side, and a right side. That is, the suction port cover 8 forms gaps 11 in four directions on the front surface of the housing 2.

  The gaseous substance generating unit 9 is provided so as to cover the gap 11 outside the lower side of the suction port 3, and the gaseous substance is discharged from the gaseous substance generating unit 9 to the indoor side. Further, the heat source 10 is installed at the upper part of the outer periphery of the suction port cover 8. The gaseous substance generation unit 9 and the heat source 10 are not in contact with each other.

  In the above configuration, when the ventilator 1 is operated, an air flow from the indoor side toward the outdoor side is generated by the operation of the motor 6 and the fan 7, and the indoor air is ventilated. Moreover, the gaseous substance which has the effect of attracting mosquitoes is emitted from the gaseous substance generation part 9 to the indoor side. As the gaseous substance diffuses indoors, indoor mosquitoes that have detected a concentration gradient are attracted to the vicinity of the ventilator 1. The mosquito approaching the vicinity of the ventilation device 1 is further attracted to the vicinity of the gap 11 by detecting the heat of the heat source 10. Mosquitoes that have approached the vicinity of the gap 11 are sucked into the airflow from the indoor side toward the outdoor side, and are discharged from the exhaust port 4 to the outside through the inside of the air passage 5.

  In the present embodiment, the gap 11 formed by the lower side of the gap 11 formed between each of the four sides and the suction port cover 8 on the front surface of the housing 2 is covered with the gaseous substance generating unit 9. ing. Therefore, the indoor air is not discharged from the gap 11 but is discharged from the other gap 11. Therefore, the gaseous substance generated from the gaseous substance generating part 9 can be actively diffused in the room direction without being immediately discharged outside the room.

  As a result, mosquitoes can be attracted to the vicinity of the ventilator 1, and indoor flying insects can be efficiently discharged from the ventilator 1.

  Moreover, in this Embodiment, the gaseous substance produced | generated in the gaseous substance generation | occurrence | production part 9 was made into the air whose carbon dioxide concentration is 4.5%.

  Since mosquitoes can be detected from a long distance even with a slight carbon dioxide concentration gradient, even a small amount of carbon dioxide can exert an attracting effect over the entire room. Moreover, since the carbon dioxide concentration of 4.5% is at the same level as human breath, the effect of attracting mosquitoes can be further enhanced.

  In this way, attracting mosquitoes that target blood-sucking people, such as mosquitoes and human mosquitoes, that could not be sufficiently attracted by conventional insect trapping devices using a light source, to the outside of the ventilator 1 and discharge them outside the room. Can do.

  In the present embodiment, the gaseous substance generating unit 9 is provided on the lower side of the suction port 3.

  A gaseous substance containing carbon dioxide, which is effective for attracting mosquitoes, has a molecular weight larger than that of air, and therefore easily diffuses downward when released indoors. By providing the gaseous substance generating part 9 at the lower side of the suction port 3, the generated gaseous substance can be efficiently diffused into the room, and mosquitoes can be attracted to the vicinity of the ventilator 1.

  Further, in the present embodiment, the fan 7 is rotated and stopped alternately during the operation of the ventilator 1, the gaseous substance is released from the gaseous substance generator 9 when the fan 7 is stopped, and the gas is emitted when the fan 7 is rotated. It is also possible to operate without releasing the particulate matter.

  Thereby, the state where the concentration of the generated gaseous substance is temporarily high in the vicinity of the suction port 3 of the ventilation device 1 can be maintained. By attracting flying insects to the gaseous substance having a high concentration, flying insects gather near the suction port 3 and can be discharged from the ventilator 1.

  In particular, mosquitoes that target humans for sucking blood, such as Aedes albopictus, Aedes aegypti, and Culex pipiens, can be expected to have an increased attractiveness compared to the continuous occurrence by generating carbon dioxide intermittently. It has a particularly attractive effect on flying insects that are highly dangerous in terms of mediation.

  As a means for intermittently generating a gaseous substance by the operation method, for example, a solenoid valve and a timer (not shown) are provided, the solenoid valve and the fan have the same power source, and the solenoid valve is opened by timer control. It can be implemented by adopting a configuration in which the stop of the fan, the closing of the solenoid valve, and the operation of the fan are repeated alternately.

  In the present embodiment, the heat source 10 is provided on the upper part of the outer periphery of the suction port cover 8 that is not in contact with the gaseous substance generating unit 9.

  Mosquitoes sense the source of heat and have the property of trying to stop at an appropriate temperature. Therefore, the mosquito approaching the ventilation device 1 due to the attracting effect of the gaseous substance senses the heat source 10 and tends to approach the suction port 3 to stop. Thereby, the mosquitoes approaching the ventilator 1 are guided into the air passage 5 from the suction port 3 and can be efficiently discharged from the ventilator 1.

  As an appropriate temperature for stopping mosquitoes, the surface temperature of the heat source 10 is preferably 30 to 40 degrees, and more preferably 34 to 36 degrees.

  Moreover, in this Embodiment, the gaseous substance generation | occurrence | production part 9 was made into the small cylinder filled with the air whose carbon dioxide concentration is 4.5%. As a result, not only the gaseous substance is efficiently generated, but also the replacement and attachment can be easily performed when the gaseous substance is exhausted.

  In the present embodiment, the gaseous substance to be generated is air having a carbon dioxide concentration of 4.5%. However, the present invention is not limited to this, and any gaseous substance that exhibits the effect of attracting mosquitoes can be used. Good. For example, components such as lactic acid, ammonia, octenol and the like that have a certain effect on attracting mosquitoes may be added.

  In the present embodiment, the gaseous substance generating unit 9 is a small cylinder, but the present invention is not limited to this, and any structure that generates a gaseous substance may be used. When carbon dioxide is included as a gaseous substance, for example, a UV lamp, a photocatalyst, and an organic substance for decomposition may be provided, and the organic substance may be decomposed to generate carbon dioxide by irradiating the photocatalyst with UV light.

  In the present embodiment, the heat source 10 is provided at the upper part of the outer periphery of the suction port cover 8, but may be provided at other portions of the outer periphery of the suction port cover 8 that are not in contact with the gaseous substance generating unit 9. Since air is exhausted from a portion of the suction port 3 that is not covered with the gaseous substance generating unit 9, more mosquitoes are guided to the vicinity of the suction port 3 by providing more heat sources 10, and the mosquitoes are efficiently removed outdoors. Can be discharged.

  Note that the heat source 10 may be provided not only on the suction port cover 8 but also on the front surface portion of the housing 2 that is close to the suction port 3 that is not blocked by the gaseous substance generation unit 9. Thereby, the effect which guides a mosquito to the suction inlet 3 vicinity can be heightened.

(Embodiment 2)
FIG. 2 is a side sectional view showing the ventilator 1 according to the present embodiment, and FIG. 3 is a schematic view when the ventilator 1 is installed in a house. 2 and 3, the same parts as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 2, the ventilation device 1 includes a gaseous substance generation unit 9, and includes a pipe 12 and an electromagnetic valve 13 as means for supplying the gaseous substance to the gaseous substance generation unit 9. . As shown in FIG. 3, the pipe 12 is connected to a gas cylinder 14.

  By setting it as the above structures, a gaseous substance can be supplied to the ventilator 1 over a long period of time, and a user's maintenance property can be improved.

(Embodiment 3)
4 and 5 are diagrams of the ventilation fan according to the third embodiment. FIG. 4 is a side sectional view showing the ventilation fan, and FIG. 5 is a schematic view when the ventilation fan is installed in a house.

  The ventilation fan 21 of the present embodiment is attached so as to penetrate the wall surface of the room as shown in FIG.

  The ventilator 21 is attached to a housing 22, a suction port 23, a discharge port 24, an air passage 25 communicating from the suction port 23 to the discharge port 24, a reverse-rotatable motor 26 and a shaft of the motor 26. The fan 27, the panel 28, and the gas discharge part 9 are comprised.

  The suction port 23 is disposed on the indoor side of the room, and the discharge port 24 is disposed on the outdoor side.

  A suction port 23 is arranged on the front surface of the housing 22, and a panel 28 is installed so as to cover the front surface of the suction port 23.

  The motor 26 and the fan 27 attached to the shaft of the motor 26 form an air flow from the indoor side to the outdoor side during normal operation.

  The panel 28 includes a panel outer frame 30 and a blade 31 that covers the opening of the panel 28, and the panel outer frame 30 is fixed to the outer periphery of the blade 31. The wing plate 31 is arranged so as to form an airflow in a diagonally downward direction from the upstream side to the downstream side of the ventilation airflow. The slat 31 is preferably black. Since insects such as mosquitoes fly with dark objects as targets, it is possible to invite indoor mosquitoes to the inlet 23 of the ventilator 21 by making the slat 31 black.

The gas discharge part 29 discharges | emits the gas for attracting a mosquito, and has an attraction | stimulation gas supply means and one or several opening part for discharge | releaseing attraction | suction gas. A gas cylinder 32, a pipe 33 connected to the gas cylinder, and an electromagnetic valve 34 are provided as means for supplying the attracting gas.
The installation position of the gas generation part 29 will not be specifically limited if it is the room inner side of the lower part of the ventilator 21. FIG. The solenoid valve 34 and the fan 27 have the same power source, and the solenoid valve 34 can be opened during the operation of the ventilation device 21 to release the attraction gas.

  It is preferable that carbon dioxide is included as an attracting gas to be generated, and it is more preferable that ammonia, octenol and lactic acid are included in addition to carbon dioxide. Carbon dioxide can attract a wide range of blood-sucking mosquitoes regardless of the type of mosquito. In addition, attractants such as ammonia, octenol, and lactic acid have the action of attracting mosquitoes alone, but when used in combination with carbon dioxide, the attracting effect on mosquitoes is remarkably improved. Can be collected in a ventilator.

A preferable range for the generation rate of carbon dioxide for attracting mosquitoes in the room is 50 mL / min to 500 mL / min, and a more preferable range is 100 mL / min to 300 mL / min. For example, when carbon dioxide is generated at a rate of 100 mL / min in a room of 30 m ³ and exhausted at an air volume of 300 m ³ / h, carbon dioxide in the vicinity of the ventilator 1 is suppressed while suppressing an increase in the carbon dioxide concentration in the room to about 15 ppm. The concentration can be increased locally, and the amount of mosquito attracted to the vicinity of the ventilation device 1 can be increased.

  Attracting substances such as ammonia, octenol, and lactic acid are odorous substances, and since they are effective even in trace amounts, it is desirable that the amount released be smaller than that of carbon dioxide.

  In the above configuration, when the ventilator 21 is operated, when the ventilator 21 is operated, an air flow from the indoor side toward the outdoor side is generated by the operation of the motor 26 and the fan 27, and the indoor air is ventilated. The panel 28 is opened obliquely upward, and mosquito attracting gas is generated from the lower part of the ventilation device 21. Mosquito attracting gas is released indoors, and the lower part of the ventilator 21 becomes a staying part of the air. The attracting gas of mosquito is accumulated in the staying part, and the attracting gas of mosquito is diffused while creating a concentration gradient indoors. be able to. The indoor mosquitoes that have detected the concentration gradient are attracted to the vicinity of the ventilation device 21. The attracted mosquitoes fly near the ventilator to search for blood-sucking targets, but the mosquitoes approaching the louver opening are sucked into the ventilator along with the exhaust flow generated by the ventilator and discharged to the outside. .

  That is, while performing ventilation, a concentration gradient of the attracting gas can be formed from the ventilator toward the indoor side, and mosquitoes can be continuously attracted.

  It is useful as a ventilator that discharges indoor air to the outdoors and exhausts flying insects to the outdoors.

DESCRIPTION OF SYMBOLS 1 Ventilation device 2 Case 3 Suction port 4 Exhaust port 5 Air path 6 Motor 7 Fan 8 Suction port cover 9 Gaseous substance generation part 10 Heat source 11 Crevice 12 Piping 13 Solenoid valve 14 Gas cylinder 21 Ventilation device 22 Housing 23 Suction port 24 Discharge port 25 Air passage 26 Motor 27 Fan 28 Panel 29 Gas generating part 30 Panel outer frame 31 Blade plate 32 Gas cylinder 33 Piping 34 Solenoid valve 101 Suction port 102 Attraction part 103 Motor 104 Fan

Claims (9)

A suction port which is partitioned by four sides on the front surface of the housing and discharges indoor air;
An exhaust port for exhausting the inhaled air;
An air passage communicating the suction port and the exhaust port;
A motor and a fan that are provided in the air passage and generate an air flow from the indoor side toward the outdoor side;
A panel formed with an area larger than the opening area of the suction port, and a suction port cover disposed with a gap between the suction port, and
With a gaseous substance generator that generates gaseous substances that attract mosquitoes,
The ventilator characterized in that the gaseous substance generating part is provided so as to cover the gap on the outside of one side of the suction port, and discharges the gaseous substance to the indoor side. The ventilation apparatus according to claim 1, wherein the gaseous substance generated in the gaseous substance generation unit includes at least carbon dioxide. The ventilator according to claim 2, wherein the gaseous substance generating part is provided on the lower side of the suction port. The fan is rotated and stopped alternately during operation of the ventilator, and the gaseous substance is released from the gaseous substance generation unit when the fan is stopped, and the gaseous substance is not released when the fan is rotated. The ventilator according to one of 3. The ventilator according to any one of claims 1 to 4, wherein a heat source is provided in part or all of the outer peripheral portion of the suction port cover that is not in contact with the gaseous substance generating part. A suction port provided on the indoor side, a discharge port provided on the outdoor side,
An air passage communicating the suction port and the discharge port;
A housing provided with a fan and a motor that is provided in the air passage and generates an air flow from the indoor side toward the outdoor side;
A panel covering the suction port of the housing,
In the opening of the panel, the slats are disposed obliquely downward from the upstream side toward the downstream side,
The ventilator which installed the gas emission part for releasing the gas which attracts a mosquito to the indoor side at the lower part of the said housing | casing. The ventilator according to claim 6, wherein the gas released from the gas discharge part contains carbon dioxide. The ventilator according to claim 7, wherein the gas released from the gas discharge part includes one or more of lactic acid, octenol, and ammonia. The ventilator according to claim 6, wherein the slats of the panel are black.

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