JP2006292253A - Ventilation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation device capable of ensuring collection of dust or rough dust/insects, and easy to handle in cleaning. <P>SOLUTION: This ventilation device comprises a main body to be arranged on the back side of a ceiling wall 2, including an indoor-side maintenance opening 6 provided on the lower surface and an outside air suction port 5 and an outside air outlet port 9 provided on the outer hull surface to form an air supply passage; and a substantially recessed net filter 10 obliquely set in the vicinity of the outside air suction port 5 within the main body by use of a fixing means so that the recessed-shape part is turned upward and opposed to the outside air inflow side. According to such a structure, since the dust or rough dust/insects can be easily collected in a filter, and the filter can be cleaned without falling the dust or rough dust/insect into a room, the maintenance of the ventilation device can be facilitated. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ventilator that supplies outside air into a room.

  A conventional ventilator is known in which a main body is integrated with a ceiling inspection port, and a filter can be attached and detached when the inspection port is opened (for example, see Patent Document 1).

  Hereinafter, the ventilation apparatus will be described with reference to FIG.

As shown in FIG. 5, the ventilating apparatus 101 is arranged inside the main body portion so that the inflow piping connection port 102 and the outflow piping connection port 103 communicate directly with each other. A filter 104 arranged so as to be blocked and an inspection door 106 provided on the lower surface of the main body on the same surface as the ceiling surface 105 so as to be openable and closable are provided. I was trying.
JP 2003-172021 A

  In such a conventional ventilator, there is a problem that dust and coarse dust that have passed through the filter 104 fall when the inspection door 106 for maintenance is opened.

  In addition, when removing the filter 104, there is a problem that dust, coarse dust, insects, etc. collected by the filter 104 fall.

  In addition, when outside air flows in winter and summer, there is a problem that a temperature difference due to the outside air temperature and the room temperature occurs in the clearance between the inspection door 106 and the ceiling surface 105, and the inspection door 106 and the ceiling surface 105 are condensed. .

  The present invention solves such conventional problems, has little change in pressure loss, can be maintained without scattering dust, coarse dust, insects, etc. collected by the filter, and can be easily attached and detached. It aims to provide a ventilator that can.

  Moreover, it aims at providing the ventilation apparatus excellent in the heat insulation performance.

  In order to achieve the above object, the ventilator of the present invention is housed on the back side of the ceiling wall, has an indoor maintenance opening on the lower surface, and has an outside air inlet and an outside air outlet on the outer surface of the main body to form a supply air passage. A fixing means is used in the vicinity of the outside air inlet in the main body, and the substantially concave net filter is installed obliquely with the recessed portion facing upward and facing the outside air inflow side. is there.

  By this means, it is possible to easily collect dust, coarse dust, insects, etc. on the filter, and to obtain a ventilation device that can be cleaned without dropping dust, coarse dust, insects, etc. in the room during removal.

  Another means is that the air supply passage is made of a resin foam and the outer shell is made of metal.

  By this means, a ventilation device having excellent heat insulation can be obtained.

  The other means is characterized in that the inner wall surface of the main body on the outside air inlet side protrudes inward from the fitting surface between the lower main body frame of the net filter and the main body.

  By this means, a ventilation device having excellent maintainability can be obtained.

  Another means is a structure in which the frame body of the net filter is resin-molded and the net is welded or insert-molded.

  By this means, a ventilation device having excellent heat insulation can be obtained.

  Another means is a configuration having a net mesh number of 30 to 40 and an aperture ratio of 40 to 50%.

  By this means, it is possible to obtain a ventilator that suppresses ventilation resistance and can reliably collect insects.

  Further, the other means has a configuration in which a hook portion is provided on the top surface side of the main body, a fitting claw portion is provided on the lower side of the main body, and a net filter is disposed.

  By this means, a ventilation device having excellent maintainability can be obtained.

  The other means is configured such that a claw receiving portion of a claw portion integrally or indirectly connected to a metal frame constituting the main body outline is covered with an inspection lid.

  By this means, a ventilation device having excellent heat insulation can be obtained.

  The other means is configured such that the fixing means for the inspection lid is provided in a part away from the pawl receiving part.

  By this means, a ventilation device having excellent heat insulation can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, it is easy to accumulate | store garbage, coarse dust, an insect, etc. on a filter, and can provide a ventilation apparatus with the effect that it can clean without dropping garbage, coarse dust, an insect, etc. in a room | chamber interior.

  In addition, it is possible to provide a ventilation device that can secure a large filter area and reduce ventilation resistance.

  Moreover, the ventilation apparatus with the effect excellent in heat insulation can be provided.

  In addition, it is possible to provide a ventilator that has an effect of reliably collecting insects.

  Moreover, the ventilation apparatus with the effect excellent in maintainability can be provided.

  The ventilator according to claim 1 of the present invention is housed on the back side of the ceiling wall, is housed on the back side of the ceiling wall, has an indoor maintenance opening on the lower surface, and has an outside air inlet and an outside air outlet on the outer surface of the main body, Using a fixing means in the vicinity of the outside air inlet in the main body that forms the air supply air passage, a substantially concave net filter is installed obliquely with the concave portion facing upward and facing the outside air inflow side. Yes, it is easy to collect dust, coarse dust, insects, etc. in the net of the collection part inside the concave shape, and it can be cleaned without dropping dust, coarse dust, insects, etc. in the room when removing it, and a large filter area can be secured , It has the effect of reducing the airflow resistance.

  According to a second aspect of the present invention, the air supply air passage is made of a resin foam, the outer shell of the main body is made of metal, and the air passage through which the outside air passes is surrounded by the resin foam, thereby conveying air. It has the effect of avoiding problems such as condensation on the body due to the temperature conditions.

  Further, the ventilator according to claim 3 is configured such that the inner wall surface of the body on the outside air inlet side protrudes inward from the fitting surface between the lower body frame of the net filter and the body, When the net filter is taken out of the main body and the dust is discarded, the collected dust and insects are put into the room without dust, dust, insects, etc. adhering to the mating surface with the lower body frame. There is an effect that the disposal work can be easily performed without spilling.

  In addition, the ventilator according to claim 4 is configured such that the frame body of the net filter is resin-molded, and the net is welded or insert-molded. It has the effect of avoiding problems such as condensation on the main body.

  Further, the ventilator according to claim 5 has a configuration in which the mesh number of the net is 30 to 40 and the aperture ratio is 40 to 50%, and the air resistance is suppressed and the insects can be reliably collected. Have

  In addition, the ventilation device according to claim 6 is configured to include a hook portion on the top surface side of the main body, and to provide a fitting claw portion on the lower side of the main body to dispose the net filter, and is excellent in maintainability. The net filter can be attached and detached with a single touch.

  The ventilator according to claim 7 has a structure in which a claw receiving portion of a claw portion that is integrally or indirectly connected to a metal frame constituting the outer shell of the main body is covered with an inspection lid. Since the transmission site is blocked, it is possible to avoid problems such as condensation on the main body.

  Further, the ventilator according to claim 8 has a structure in which the fixing means of the inspection lid is provided in a part away from the pawl receiving part, and the fixing means is provided in a place that is not easily affected by heat transfer. It has the effect of avoiding problems such as condensation on the main body.

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

(Embodiment 1)
As shown in FIGS. 1-4, the ventilation apparatus main body 1 of this invention is stored in the ceiling wall 2 back side in a building, has the duct connection port 4 connected with the duct A3, and has outdoor air on the lower surface. A ventilator having a duct connection port 8 that is introduced from an outside air suction port 5 provided on the side surface of the ventilator body 1 having the indoor maintenance opening 6 and passes through the inside of the ventilator body 1 and is connected to the duct B7. Air is supplied to an indoor air supply port (not shown) from the outside air outlet 9 provided on the side surface of the main body 1.

  The outdoor air introduced from the outside air inlet 5 contains dust, insects, etc., but insect traps installed in the vicinity of the outside air inlet 5 inside the ventilator body 1 forming the air supply air passage. Coarse dust, insects, and the like are collected by the net filter 10 as a part, and finer dust is collected by the air supply cleaning filter 11 provided adjacent to the downstream side of the net filter 10 and cleaned and then indoors. Supplied.

  The net filter 10 is configured by welding or insert molding a resin-molded frame 12 and a fine polyethylene net 13 having a mesh number of 30 to 40 / 2.54 cm and an aperture ratio of 40 to 50%. Sometimes, the frame body is fixed using a fixing means in contact with a convex or concave hooking portion 14 formed near the center of the top surface inside the ventilator main body 1 and near the lower portion of the main body inner wall surface 15 of the outside air suction port 5. 12, the concave net filter 10 having a predetermined depth is installed obliquely with the concave portion facing upward and facing the outside air inflow side.

  Further, the net filter 10 can be attached and detached by aligning the filter tip 16 of the net filter 10 with the convex or concave hooking part 14 formed in the vicinity of the center of the top surface inside the ventilation device body 1. While the formed claw portion 17 is fitted into the fitting surface 18 of the outside air suction port 5, the claw receiving portion 19 is attached to or integrally molded with the lower portion of the outside air suction port 5.

  The main body wall surface 15 is configured to protrude into the main body from the fitting surface 18 with the lower main body frame 20 having the claw portion 17 of the net filter 10 to be attached.

  The connection frame 21 that does not have the claw receiving portion 19 bonded or integrally formed with the lower portion of the outside air suction port 5 and the lower portion of the outside air blowing port 9 has both sides not having the outside air suction port 5 and the outside air blowing port 9. It is fastened with a fixing screw 23 in a substantially vertical upward direction so as to be connected to an auxiliary frame 22 having a screw hole arranged at the lower part of the surface. Located on the end face and sealed by the inspection lid 24, it is disposed at a position away from the air flow path conveyed from the duct.

  The auxiliary frame 22 has a shape covering the outer periphery of the main body, and is provided with screws on the inside of both side surfaces of the metal frame 26 having the mounting flange 25 for mounting on the housing structure and not having the outside air outlet 5 and the outside air outlet 9. Fixed.

  The inspection lid 24 is fixed in a substantially vertically upward direction by a plurality of decorative screws 28 via a plurality of fixing brackets 27 respectively disposed on the pawl receiving portion 19 and the connection frame 21.

  In addition, the fixing bracket 27 disposed in the claw receiving portion 19 indirectly connected to the metal frame 26 is provided in a portion away from the mounting position of the net filter 10 and the claw receiving portion 19.

  The indoor maintenance opening 6 is sealed by the inspection lid 24 and is provided so as to cover the louver 29 at the lower part of the ventilator body 1 so that the inspection lid 24 and the mounting flange 25 are not exposed from the ceiling wall.

  The outside air inlet 5, the outside air outlet 9, the inspection lid 24, and the main body frame 30 are formed of a heat insulating material such as a foam material.

  In the above configuration, when a blower (not shown) provided so as to communicate with the duct A3 and the duct B7 is operated, outdoor air is introduced from the outside air inlet 5 connected to the duct A3, and the inside of the ventilator main body 1 is introduced. After ventilation, coarse dust and insects are collected by the internal net filter 10, and further fine dust is collected and cleaned by the air supply cleaning filter 11 provided adjacent to the downstream side of the net filter 10. Clean air is supplied into the room from the outside air outlet 9 connected to the duct B7.

  Thus, according to the ventilator of the present invention, the net filter 10 is composed of a resin-molded frame 12 and a fine polyethylene net 13 having a mesh number of 30 to 40 / 2.54 cm and an aperture ratio of 40 to 50%. And is formed by welding or insert molding, and at the time of installation, it is brought into contact with a convex or concave hooking portion 14 formed in the vicinity of the center of the top surface inside the ventilator main body 1, and the main body inner wall surface of the outside air inlet 5 15 Using the fixing means in the vicinity of the lower part, the concave net filter 10 having a predetermined depth by the frame body 12 is installed obliquely with the concave part facing upward and facing the outside air inflow side. Therefore, a large area of the net filter 10 can be secured and the ventilation resistance can be reduced. In addition, by using a resin-molded frame 12 and a fine polyethylene net 13 having a mesh number of 30-40 / 2.54 cm and an aperture ratio of 40-50%, fine insects and the like are reliably collected. In addition, since the frame 12 has a concave shape having a predetermined depth, even if a large number of insects are collected and collected, the pressure loss is not reduced and the ventilation performance is not significantly reduced. Further, by welding or insert molding the resin-molded frame 12 and the net 13, heat transfer to the outer shell of the main body is made difficult, and problems such as dew condensation on the main body due to the temperature condition of the carrier air can be avoided.

  In addition, the net filter 10 can be attached and detached by aligning the filter tip 16 of the net filter 10 with the convex or concave hooking part 14 formed in the vicinity of the center of the top surface inside the ventilation device main body 1. Since the formed claw portion 17 is fitted to the fitting surface 18 of the outside air suction port 5 and is attached to the claw receiving portion 19 which is bonded or integrally molded to the lower portion of the outside air suction port 5, the claw portion 17 In one place, the net filter 10 can be attached and detached with one touch, and maintenance is easy. Further, the fitting surface 18 has a connecting function for disposing the net filter 10 in the outside air suction port 5, and substitutes not only the claw portion 17 but also a magnet, a screw, Velcro (registered trademark), or the like. be able to.

  Further, the inner wall surface 15 of the main body protrudes into the main body from the fitting surface 18 with the lower main body frame 20 having the claw portion 17 of the net filter 10 to be attached, so that the net filter 10 and the lower main body frame 20 are fitted. There is no adhesion of dust, coarse dust, insects, etc. to the surface 18, and when the net filter 10 is taken out of the main body and the dust is discarded, the collected coarse dust, insects, etc. are not spilled indoors. Disposal work can be easily performed.

  Further, the pawl receiving portion 19 and the connection frame 21 are located on the lower end surface of the ventilation device main body 1 and are sealed by the inspection lid 24 and thus are located away from the flow path of the air conveyed from the duct. This will block the heat transfer area and avoid problems such as condensation on the body.

  In addition, the fixing bracket 27 disposed on the claw receiving portion 19 indirectly connected to the metal frame 26 is located in a portion away from the mounting position of the net filter 10 and the claw receiving portion 19, so that the influence of heat transfer is reduced. Fixing means will be provided at places where it is difficult to receive, and problems such as condensation on the main body can be avoided.

  In addition, since the outside air inlet 5, the outside air outlet 9, the inspection lid 24, and the main body frame 30 are formed of a heat insulating material such as a foam material, the air passage through which the outside air passes is surrounded by a resin foam. Problems such as condensation on the body due to air temperature conditions can be avoided.

  The ventilation device of the present invention has excellent maintainability with little change in pressure loss, such as an air supply cleaning filter unit equipped with a filter, an intermediate duct fan equipped with a fan casing, a heat exchange air unit, a ceiling embedded ventilation fan, etc. It is effective as a use.

The perspective view which shows the structure of the ventilation apparatus of Embodiment 1 of this invention. Partially cutaway side view showing the ventilation device with the filter attached Side view showing the installation of the ventilator The perspective view which shows the state which attached the inspection cover of the ventilation apparatus Side view showing a conventional ventilation system

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Ceiling wall 5 Outside air inlet 6 Indoor maintenance opening 9 Outside air outlet 10 Net filter 12 Frame body 13 Net 14 Hooking part 15 Body wall surface 18 Fitting surface 19 Claw receiving part 20 Lower body frame 24 Inspection lid 26 Metal frame

Claims (8)

It is housed on the back side of the ceiling wall, has an indoor maintenance opening on the lower surface, has an outside air inlet and an outside air outlet on the outer surface of the body, and uses fixing means in the vicinity of the outside air inlet in the body to form a supply air passage A ventilator characterized in that a substantially concave net filter is installed obliquely with its concave portion facing upward and facing the outside air inflow side. The ventilation apparatus according to claim 1, wherein the air supply path is made of a resin foam, and the outer shell of the main body is made of metal. The ventilator according to claim 1 or 2, wherein an inner wall surface of the main body on the outside air inlet side protrudes inward from a fitting surface between the lower frame body of the net filter and the main body. The ventilation apparatus according to any one of claims 1 to 3, wherein a frame body of the net filter is resin-molded, and the net is welded or insert-molded. The ventilator according to any one of claims 1 to 4, wherein the number of meshes of the net is 30 to 40 and the aperture ratio is 40 to 50%. The ventilation apparatus according to any one of claims 1 to 5, wherein a hook portion is provided on the top side of the main body, a fitting catch portion is provided on the lower side of the main body, and a net filter is disposed. The ventilation device according to any one of claims 1 to 6, wherein a claw receiving portion connected integrally or indirectly with a metal frame constituting the outer shell of the main body is covered with an inspection lid. The ventilator according to any one of claims 1 to 7, wherein a fixing means for the inspection lid is provided in a part away from the pawl receiving part.

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