JP2009300019A - Heat exchange ventilating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a heat exchange ventilating device capable of collecting minute insects and dust. <P>SOLUTION: The heat exchange ventilating device is provided with an air supply air course stored within a case body, sucking outside air from an outside air suction port of the case body by an air supply fan and supplying the air from an air supply port of the case body to an indoor side via a dust removing filter for collecting large insects and dust and an air supply passage of a heat exchange element, and with an air exhaust air course sucking indoor air from an air return port of the case body by an air exhaust fan and exhausting the air from an air exhaust port of the case body to an outdoor side via an air exhaust passage of the heat exchange element. The heat exchange ventilating device is further provided with a filter unit which is detachably installed outside the air supply port of the case body and to which a filter for collecting minute insects and dust is fitted. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a heat exchange ventilator that performs heat exchange by simultaneous supply and exhaust through a heat exchange element.

  Conventionally, an exhaust passage for exhausting indoor air, an intake passage for taking in outdoor air, a fan for sending air in the exhaust passage and the intake passage, an exhaust passage and an intake passage In the heat exchange ventilator that is disposed across the air and that is configured to include heat exchange elements that exchange heat between the air to be exhausted and the air to be taken in, each upstream side of the exhaust flow path and the intake flow path with respect to the heat exchange element In each, a dust collection box for collecting dust in the air is detachably inserted, and the dust collection box is captured by a filter disposed in a state of blocking the exhaust flow path or the intake flow path, and the filter. There is a dust collection box body that contains dust, and a filter is detachably provided to the dust collection box body (see, for example, Patent Document 1).

  Further, the outside air introduction air passage and the ventilation air are provided in a main body case of an air conditioner having an outside air introduction air passage for taking in air outside the building into the room and a ventilation air passage for discharging indoor air to the outside of the building. A heat exchange unit that exchanges heat between air introduced by crossing the road and air to ventilate is detachably provided, and as an intrusion prevention member that prevents intrusion other than air taken in from the outside of the building, the heat exchange unit There is a bag-like insect net member that prevents insects from entering the room from the outside of the building in the outside air introduction air passage, and the insect net member is detachably provided on the heat exchange unit (for example, , See Patent Document 2).

  Further, the air supply device guides outside air to a predetermined area, and a filter mechanism is provided outside the air supply device body, and a cleaning opening through which the filter can be inserted and removed is formed in the filter mechanism. The opening is arranged above the opening provided on the ceiling surface, and connects the electric dust collecting means to the housing of the filter mechanism and introduces the outside air introduction opening and the room air for introducing outside air outside the building. There are some which are installed close to the indoor air exhaust opening to be discharged, and in which the insect air repelling means for preventing insects from entering from the outside air introducing opening is detachably installed in the indoor air exhaust opening (For example, refer to Patent Document 3).

JP 2001-324185 A JP 2004-205100 A JP 2006-072011 A

  However, the conventional dust removal filter, bag-shaped insect net member or insect repelling means described in Patent Documents 1 to 3 have a problem that fine insects and dust cannot be collected.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the heat exchange ventilation apparatus which can collect a fine insect and dust.

  In order to solve the above-described problems and achieve the object, the present invention is a dust removal filter that is housed in a housing, sucks outside air from the outside air suction port of the housing by an air supply fan, and collects large insects and dust. And an air supply air passage for supplying air into the room from the air supply port of the housing through the air supply passage of the heat exchange element, and an exhaust fan for sucking room air from the return air port of the housing, and an exhaust passage of the heat exchange element And a heat exchange ventilator that exhausts air from the exhaust port of the housing to the outside through the air exhaust vent, and is detachably installed outside the air supply port of the housing to collect minute insects and dust A filter unit equipped with a filter is provided.

  According to this invention, there exists an effect that the heat exchange ventilator which can collect a fine insect and dust is obtained.

  Embodiments of a heat exchange ventilator according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment FIG. 1 is a longitudinal sectional view showing an embodiment of a heat exchange ventilator according to the present invention, and FIG. 2 is a part of a housing showing an embodiment of the heat exchange ventilator according to the present invention. FIG. 3 is an exploded perspective view of the filter unit of the embodiment, and FIG. 4 is a perspective view showing a state in which a duct guide is attached to the filter unit of the embodiment. 5 is a perspective view showing a state where the inner box is inserted into the outer box of the filter unit of the embodiment, and FIG. 6 shows a state where the inner box is inserted into the outer box of the embodiment in a correct posture. FIG. 7 is a transverse sectional view showing a state in which the inner box is inserted into the outer box of the embodiment in a wrong posture, and FIG. 8 is an exploded perspective view of the outer box of the embodiment. FIG. 9 is a perspective view showing an assembly fitting portion of the outer box of the embodiment, and FIG. FIG. 11 is an exploded perspective view of the inner box of the embodiment, FIG. 11 is a cross-sectional view showing a state in which a filter is attached to the inner box of the embodiment, and FIG. 12 shows the heat exchange ventilator of the embodiment. It is a perspective view which shows the state which attached the front panel of the filter unit, and FIG. 13 is a perspective view which shows the process of attaching a filter unit to the heat exchange ventilation apparatus of embodiment.

  As shown in FIGS. 1 and 2, the heat exchange ventilator 90 according to the embodiment is installed on the back side (upper side) of the ceiling 4 with suspension bolts 2 and 3. The rectangular parallelepiped housing 5 of the heat exchange ventilator 90 is formed of sheet metal, and the supply air passage 6 and the exhaust air passage 7 are housed (formed) therein. In each of the air passages 6 and 7, fan casings 8 and 9 for accommodating an air supply fan 14 and an exhaust fan 12 are formed. The housing 5 has an air supply passage 6a connected to the intake air passage 6 and an exhaust passage 7a connected to the exhaust air passage 7, and a heat exchange element 10 for exchanging heat between the exhaust and the air supply. Stored.

  In FIGS. 1 and 2, reference OA indicates outside air, reference SA indicates supply air, reference RA indicates room air (return air), reference EA indicates exhaust air (exhaust air). ing.

  The air supply path 6 passes from the outside air inlet 18 formed in the one side plate 17L of the housing 5 to the other side plate 17R facing the one side plate 17L via the air supply passage 6a of the heat exchange element 10 and the fan casing 8. The formed air supply port 28 is reached. The exhaust air passage 7 passes from the return air port 27 formed on the other side plate 17R of the housing 5 to the exhaust port 19 formed on the one side plate 17L via the exhaust passage 7a of the heat exchange element 10 and the fan casing 9. It reaches.

  Fan motors 11 and 13 are installed in the housing 5, the exhaust fan 12 is rotationally driven by the fan motor 11, and the air supply fan 14 is rotationally driven by the fan motor 13. The heat exchange element 10 that exchanges heat between the supply air SA of the supply passage 6a and the exhaust air EA of the exhaust passage 7a is installed and stored in the center of the housing 5.

  The heat exchange element 10 has a perforated flat plate air supply passage 6a formed by adhering corrugated paper (corrugated sheet) on flat paper, and a hole formed by adhering corrugated paper (corrugated sheet) on the flat paper. An open plate-like exhaust passage 7a is laminated in multiple layers so that the direction of the air supply passage 6a and the direction of the exhaust passage 7a are orthogonal to each other, and the air supply SA that passes through the air supply and exhaust passages 6a, 7a, Heat exchange is performed between the exhaust EAs.

  Dust removal filters 15 and 16 for collecting large insects and dust are respectively installed on the inlet side of the heat exchange element 10 in the supply air path 6 and on the inlet side of the heat exchange element 10 in the exhaust air path 7. .

  Duct guides 20 and 21 are attached to the outside air suction port 18 and the exhaust port 19 of the housing 5, respectively. One end of a duct 22 for sucking outside air OA is attached to the duct guide 20, one end of a duct 23 for exhaust EA discharge is attached to the duct guide 21, and the other ends of the ducts 22 and 23 are respectively connected to the building guide. It is connected to the opening of the outer wall 24.

  A hood 25 for sucking outside air OA is installed in the opening of the outer wall 24 to which the other end of the duct 22 is connected, and a hood for exhaust EA is installed in the opening of the outer wall 24 to which the other end of the duct 23 is connected. 26 is installed.

  Duct guides 29 (see FIG. 2) and 34 are attached to the return air port 27 (see FIG. 2) and the air supply port 28 of the housing 5, respectively. One end of a duct 30 for returning indoor air RA is attached to the duct guide 29, and the other end of the duct 30 is connected to an opening of the ceiling 4 in the room. A grill 31 for returning the room air RA is installed at the opening of the ceiling 4 to which the duct 30 is connected.

  The duct guide 34 attached to the air supply port 28 of the other side plate 17R of the housing 5 is removed, and the filter unit 32 made of a sheet metal rectangular box according to the embodiment of the present invention, to which the filter 33 can be attached and detached, is attached to the duct guide 34. Install it instead (see Figure 1).

  The removed duct guide 34 is attached to the filter unit 32, and one end of a duct 35 for the supply air SA is attached to the duct guide 34, and the other end of the duct 35 is connected to the other ceiling 4 of the indoor ceiling 4. Connected to the opening. In the other opening of the ceiling 4 to which the duct 35 is connected, a grill 36 for the supply air SA is installed.

  The filter unit 32 can be attached from an inspection port 37 provided in the ceiling 4 in order to clean the heat exchange ventilator 90. The filter unit 32 can be cleaned from the inspection port 37 because the filter 33 is removable. Moreover, since it is not necessary to separately provide a dedicated inspection port for the purpose of installing and cleaning the filter unit 32, it is easy to retrofit the filter unit 32 to the existing heat exchange ventilator, and equipment costs can be reduced.

  When the filter unit 32 is installed through the outside air OA suction duct 22, when fog is generated, the fog is sucked from the outside air OA suction hood 25 installed on the outer wall 24, and the filter 33 has a fine filter 33. The problem is that the fog is collected and the drain is generated and the ceiling is soiled.

  If the filter unit 32 is installed in the air supply port 28 of the other side plate 17R of the heat exchange ventilator 90, when the mist is sucked in, the heat exchange element 10 installed inside the housing 5 has a water retention strength, Moisture is absorbed, and moisture-containing air does not flow downstream of the heat exchange element 10, and the ceiling is not stained by collecting moisture by the fine filter 33 of the filter unit 32 to generate drainage. .

  Further, when the filter unit 32 is installed through the duct 22 for sucking outside air OA, all large insects and dust sucked together with outside air are collected by the fine filter 33 of the filter unit 32. Are clogged at a stretch, and the number of times the filter 33 is cleaned increases. Moreover, if the filter 33 is clogged, the pressure loss of the supply air path 6 will increase, and the air volume of the heat exchange ventilator 90 will fall.

  If the filter unit 32 is installed in the air supply port 28 of the other side plate 17R of the heat exchange ventilator 90, large insects and dust are collected by the dust removal filter 15 installed in the air supply path 6, and minute insects and dust are collected. Is collected by the filter unit 32, compared to when the filter unit 32 is installed via the duct 22 for sucking outside air OA, the filter 33 of the filter unit 32 is not clogged with insects and dust all at once.

  Since the fine filter 33 of the filter unit 32 does not get clogged with insects and dust at a stretch, the filter unit 33 may be cleaned simultaneously with the cleaning of the dust filter 15 having a rough eye of the heat exchange ventilator 90. In addition, it is possible to minimize a reduction in the air volume of the heat exchange ventilator 90 due to the fine filter 33 of the filter unit 32 being clogged with insects and dust.

  As shown in FIG. 3, the filter unit 32 includes a sheet metal outer box 38, a sheet metal inner box 39 in which a filter 33 that is housed in the outer box 38 and collects minute insects and dust is mounted, It has. As shown in FIG. 4, the inner box 39 is accommodated in the outer box 38, and the duct guide 34 is fixed to the outer box 38 by screwing the screw 41 into the screw hole 40 of the outer box 38 shown in FIG. .

  When cleaning the fine filter 33, as shown in FIG. 5, the inner box 39 with the filter 33 attached can be easily pulled out from the outer box 38, and the filter 33 can be easily cleaned.

  As shown in part A of FIG. 6, if a part of the side plate on the insertion side of the inner box 39 is cut out and the inner box 39 is inserted into the outer box 38 without making a mistake in the top and bottom, the inner box 39 is screwed into the screw 41. And can be stored in the outer box 38 without interference. As shown in FIG. 7, when the inner box 39 is turned upside down and inserted into the outer box 38, the screw 41 interferes with the side plate of the inner box 39 (see section B in FIG. 7) and is inserted into the outer box 38. Can not do it.

  As shown in FIG. 8, the outer box 38 includes a front panel 45 and a frame body 46. As shown in FIG. 9, the side plate of the front panel 45 is provided with a slit 48, and the insertion piece 49 is provided at the front end of the side plate of the frame 46. The insertion piece 49 of the frame body 46 is inserted into the slit 48 of the front panel 45, the frame body 46 is aligned with the front panel 45, and both are fixed by screws. Since the frame body 46 can be easily aligned with the front panel 45, the assembling work on the back of the ceiling is easy.

  As shown in FIG. 10, the inner box 39 includes a main body 51, a holding frame 50, a side panel 52, and a fine filter 33. The side panel 52 is provided with a handle 53 for pulling out the inner box 39 from the outer box 38.

  As shown in FIG. 11, the outer periphery of the filter 33 can be sandwiched between the front plate 51 a of the main body 51 and the presser frame 50, and the filter 33 can be easily fixed to the inner box 39 with the screws 55. Further, since the hole diameter of the front plate 51a of the main body 51 is reduced and a space 54 for collecting the collected minute insects and dust is provided between the filter 33 and the front plate 51a, When pulling out the inner box 39 from the box 38, minute insects and dust are not scattered and the ceiling 4 is not soiled.

  As shown in FIGS. 12 and 13, when the outer box 38 is attached to the housing 5, first, the front panel 45 is attached to the air supply port 28 with screws 55. After inserting the insertion piece 49 of the frame body 46 into the slit 48 of the front panel 45 and aligning the frame body 46 with the front panel 45, both are fastened with screws. The frame 46 and the front panel 45 can be easily aligned and fastened, and the filter unit 32 can be mounted by positioning and fastening from one direction via the inspection port 37 (see FIG. 1). Back work is simplified.

  As described above, the heat exchange ventilator according to the present invention is useful as a ventilator installed on the back of a ceiling.

It is a longitudinal cross-sectional view which shows embodiment of the heat exchange ventilation apparatus concerning this invention. It is the perspective view which fractured | ruptured a part of housing | casing which shows embodiment of the heat exchange ventilation apparatus concerning this invention. It is a disassembled perspective view of the filter unit of embodiment. It is a perspective view which shows the state which attached the duct guide to the filter unit of embodiment. It is a perspective view which shows a mode that an inner box is inserted in the outer box of the filter unit of embodiment. It is a cross-sectional view which shows a mode that an inner case is inserted with the correct attitude | position in the outer case of embodiment. It is a cross-sectional view which shows a mode that an inner box is inserted in the attitude | position with a wrong attitude | position in the outer box of embodiment. It is a disassembled perspective view of the outer case of an embodiment. It is a perspective view which shows the assembly fitting part of the outer case of embodiment. It is a disassembled perspective view of the inner box of embodiment. It is sectional drawing which shows the state which mounted | wore the inner box of embodiment with the filter. It is a perspective view which shows the state which attached the front panel of the filter unit to the heat exchange ventilator of embodiment. It is a perspective view which shows the process of attaching a filter unit to the heat exchange ventilator of embodiment.

Explanation of symbols

2, 3 Suspension bolt 4 Ceiling 5 Housing 6 Supply air passage 7 Exhaust air passage 8, 9 Fan casing 10 Heat exchange element 6a Supply passage 7a Exhaust passage 11 Exhaust motor 12 Exhaust fan 13 Supply motor 14 Supply fan 15, 16 Dust filter 17L One side plate 17R Other side plate 18 Outside air suction port 19 Exhaust port 20, 21, 29, 34 Duct guide 22, 23, 30, 35 Duct 24 Outer wall 25, 26 Hood 27 Return air port 28 Air supply port 31, 36 Grill 32 Filter unit 33 Fine filter 37 Inspection port 38 Outer box 39 Inner box 40 Screw hole 41 Screw 45 Front panel 46 Frame 48 Slit 49 Insertion piece 50 Holding frame 51 Main body 51a Front plate 52 Side panel 53 Handle 54 Space 55 screw 90 heat exchange ventilator

Claims (6)

Stored in the enclosure,
Air supply air that is supplied into the room from the air supply port of the housing through the air supply passage of the dust filter and the heat exchange element that sucks outside air from the external air intake port of the housing by the air supply fan and collects large insects and dust. Road,
An exhaust air passage that sucks indoor air from the return air port of the housing by an exhaust fan and exhausts the air from the exhaust port of the housing to the outside through the exhaust passage of the heat exchange element;
In a heat exchange ventilator comprising:
A heat exchange ventilator comprising a filter unit that is detachably installed on the outside of an air supply port of the housing and is equipped with a filter that collects minute insects and dust.   2. The heat exchange ventilation according to claim 1, wherein the filter unit includes an outer box installed at the air supply port, and an inner box housed in the outer box and fitted with the filter. apparatus.   3. The filter unit according to claim 2, wherein when the inner box is inserted into the outer box, if the top and bottom of the inner box are reversed, the members interfere with each other and cannot be inserted. Heat exchange ventilator as described in.   The filter unit can be attached to the heat exchange ventilator through an inspection port provided on the ceiling even after the heat exchange ventilator is installed on the back of the ceiling. Item 4. The heat exchange ventilator according to any one of Items 1 to 3.   The heat exchange ventilator according to claim 4, wherein the filter unit can be attached by positioning and fastening work from one direction via the inspection port.   The heat exchange ventilator according to claim 2, wherein the filter unit is provided with a space for collecting collected insects and dust between a front plate of the inner box and the filter.