JP4463711B2 - Heat exchange ventilator - Google Patents

Description

  The present invention relates to a heat exchange ventilator that is installed in a space behind a ceiling and performs heat exchange between supply and exhaust flows.

  Some heat exchange ventilators installed in the space behind the ceiling, etc., allow the exhaust flow, which is the flow of room air, to flow in a bypass that bypasses the heat exchanger, so that ventilation by supply and exhaust without heat exchange can also be performed. There is what I did. The opening and closing of the bypass is performed by an electric damper device. In mid-season such as spring or autumn, normal ventilation using bypass can be performed. In addition, there exists a thing shown by patent document 1 as this type of prior art.

JP-A-5-256485

  In this type of conventional heat exchange ventilator, an inspection port for maintenance and inspection of an air filter, a heat exchanger, or an electric damper device is provided at the bottom of the main body box. This inspection port has an open / close lid attached with screws. Although the functional parts can be maintained and inspected by opening the open / close lid, the ceiling surface may be stretched after installation, and if the inspection opening provided on the ceiling surface is misaligned with the inspection port, It may be difficult to remove the screw. Moreover, it is difficult to remove the screw of the opening / closing lid even when the distance from the ceiling surface is narrow.

  The present invention has been made in order to solve the above-described problems. The purpose of the present invention is to perform maintenance and inspection of functional parts by opening and closing the open / close lid even if the inspection opening and inspection opening on the ceiling surface are misaligned. It is to obtain a possible heat exchange ventilator, and to promote the enhancement of the function of its open / close lid.

  In order to solve the above-mentioned problems, the present invention is an air supply / exhaust type heat exchange ventilator equipped with a heat exchanger, which is installed in a space behind a ceiling, etc. An inspection port is opened at the bottom, a guide rail is provided at the inspection port, and a means for providing a slide opening / closing lid that can open and close the inspection port by sliding in the lateral direction is adopted on the guide rail.

  According to the present invention, the inspection opening can be opened and closed by sliding the slide opening / closing lid in the direction along the ceiling surface even if the inspection opening provided on the ceiling surface and the inspection opening of the heat exchange ventilator are slightly displaced. In addition, the slide opening / closing lid can be easily opened and closed even when the distance from the ceiling surface is narrow.

  The heat exchanging ventilator of the present invention is a ceiling-embedded type installed in a space behind the ceiling and the like, an exhaust passage for taking in indoor air and exhausting it outside the room, and taking in outdoor air and feeding it into the room An air supply passage is defined in the main body box. An inspection port is opened at the bottom of the main body box facing the ceiling surface in the installed state. Two channel-shaped guide rails are provided inside the inspection port so as to face each other. The guide rail is provided with a slide opening / closing lid that can open and close the inspection port by sliding in the lateral direction. The main body box and the guide rail are provided with airtight holding means for holding airtightness between the closed slide opening / closing lid and the inspection port. The airtight holding means includes an inclined guide that guides one end side of the slide opening / closing lid at the closed end of the slide opening / closing lid with an upward slope, and lifts and contacts the upper flange of the guide rail, and the other end side of the slide opening / closing lid. It is composed of a dowel structure projecting from the lower flange of the guide rail that lifts the guide rail. A part of the air supply passage is constituted by a secondary passage of a built-in heat exchanger. A part of the exhaust passage is constituted by a primary passage of the heat exchanger. An air filter is provided at the entrance of the heat exchanger passage. The air supply passage is provided with an air supply blower that forms a supply airflow passing through the secondary passage of the heat exchanger. The exhaust passage is provided with an exhaust fan for forming an exhaust flow passing through the primary passage of the heat exchanger. The inspection port is provided at a position where the heat exchanger and the air filter can be maintained and inspected.

  The air supply passage is a series of air passages having an outdoor suction port as an inlet end and an indoor outlet as an outlet end. The outdoor suction port is outdoors via a duct, and the indoor outlet is indoors via a duct. Will be contacted respectively. The exhaust passage is a series of air passages with the indoor suction port as the inlet end and the outdoor outlet as the outlet end. The indoor suction port is connected to the room via a duct, and the outdoor outlet is connected via the duct. Be contacted outdoors. A plurality of indoor suction ports in the exhaust passage are provided, and a damper device is connected to a specific one of the indoor suction ports. The damper device has one common inlet, branches from this inlet into two independent passages, the outlet forms two air passages in the housing, and each air passage is opened and closed by an open / close blade at the branch of the passage An electric damper mechanism is provided.

  One of the ventilation paths of the damper device is a bypass path that bypasses the primary path of the heat exchanger, and the other ventilation path faces the outlet of the primary path of the heat exchanger. By the operation of the electric damper mechanism, the bypass passage can be closed, and the indoor intake passage leading to the primary passage of the heat exchanger can be opened. In addition, the operation of the electric damper mechanism can open the bypass passage and close the ventilation passage leading to the primary passage of the heat exchanger, and also close the bypass passage and connect the ventilation passage leading to the primary passage of the heat exchanger. Can be closed.

  This heat exchange ventilator is installed on the ceiling of a house, etc., and the indoor suction port and the indoor air outlet are each connected to the room by a duct, and the outdoor air inlet and the outdoor air outlet are connected to the outside, so that the entire house is always A ventilation system to ventilate can be constructed. The inspection opening faces the ceiling surface, and an inspection opening with a lid is provided at the position of the ceiling corresponding to the inspection opening. Maintenance inspection of the heat exchanger and the air filter can be performed by opening the inspection opening of the ceiling, sliding the slide opening / closing lid laterally along the ceiling, and opening the inspection opening. At this time, even if the positional relationship between the inspection opening on the ceiling and the inspection opening is misaligned, or the ceiling and the inspection opening are close to each other, the slide opening / closing lid does not involve a screw operation or the like and can be opened and closed because it does not interfere with the ceiling. . When the opened slide opening / closing lid is closed, the airtight holding means acts and the upper end of the guide rail is moved by the inclined guide that guides and lifts one end of the sliding opening / closing lid at the closed end of the slide opening / closing lid. The other end of the slide opening / closing lid is lifted by the guide rail dowel structure and is pressed against the upper flange of the guide rail to maintain the airtightness between the slide opening / closing lid and the inspection port.

Embodiment 1 FIG.
The present embodiment shown in FIG. 1 to FIG. 6 relates to a heat exchange ventilator that is installed along the ceiling surface of the ceiling space to ventilate the entire house. 1 is a cross-sectional configuration diagram illustrating a residence to which a heat exchange ventilator is applied, FIG. 2 is a plan configuration diagram illustrating the configuration of the heat exchange ventilator, and FIG. 3 is an exploded perspective view of a main body box of the heat exchange ventilator. 4 is an enlarged cross-sectional view of an arrow B portion in FIG. 3, FIG. 5 is a cross-sectional view showing a damper device, and FIG. 6 is a plan view showing another form of the airtight holding means.

  As shown in FIG. 1, the heat exchange ventilator 1 of the present embodiment is installed in a ceiling space or the like and communicates with the interior and the exterior with the duct 2 as a center, and takes in indoor air and exhausts it outside the room. The main body box 5 defines an exhaust passage 3 and an air supply passage 4 for taking in outdoor air and supplying the air into the room. A part of the air supply passage 4 is constituted by a secondary passage of a heat exchanger 6 provided in the center of the main body box 5. Further, a part of the exhaust passage 3 is constituted by a primary passage of the same heat exchanger 6. The air supply passage 4 is provided with an air supply blower 7 that forms a supply air flow passing through the secondary passage of the heat exchanger 6. The exhaust passage 3 is provided with an exhaust fan 8 that forms an exhaust flow passing through the primary passage of the heat exchanger 6.

  The air supply passage 4 is a series of air passages having an outdoor suction port 9 opened on a side surface of the main body box 5 as an inlet end and an indoor outlet 10 as an outlet end. The outdoor suction port 9 is connected to the duct 2. The indoor outlet 10 is communicated with the room via the duct 2. The exhaust passage 3 is a series of air passages having the indoor suction port 11 as an inlet end and the outdoor air outlet 12 as an outlet end. The indoor suction port 11 is provided on the suction side of the exhaust fan 11, and the duct 2 It is communicated to the room through. The outdoor air outlet 12 is connected to the outdoors via the duct 2. A plurality of indoor suction ports 11 of the exhaust passage 3 are provided on the side surface of the main body box 5, and a damper device 13 is connected to a specific indoor suction port 11 among them.

  As shown in FIG. 5, the damper device 13 has one common inlet, branches from this inlet into two independent passages, the outlet forms two ventilation passages in the housing, and an angle is formed at the branch of the passage. There is provided an electric damper mechanism 14 that opens and closes each ventilation path by means of an open / close blade. One of the ventilation paths is a bypass path 15 that bypasses the primary path of the heat exchanger 6, and the other ventilation path faces the outlet of the primary path of the heat exchanger 6. An air filter 16 is provided at the entrance of the passage of the heat exchanger 6.

  The air filter 16 and the heat exchanger 6 can be maintained and inspected from an inspection port 17 provided at the bottom of the main body box 5. Two channel-shaped guide rails 18 are provided inside the inspection port 17 so as to face each other (see FIG. 3). The guide rail 18 is provided with a slide opening / closing lid 19 that can open and close the inspection port 17 by sliding in the lateral direction. The main body box 5 and the guide rail 18 are provided with airtight holding means for holding airtightness between the closed slide opening / closing lid 19 and the inspection port 17. The hermetic holding means includes two inclined guides 20 that guide one end side of the slide opening / closing lid 19 at the closed end of the slide opening / closing lid 19 with an upward slope, and lift and press it against the upper flange of the guide rail 18. The lower end of the guide rail 18 that lifts the other end of the slide opening / closing lid 19 and a dowel structure 21 projecting from the lower surface of the slide opening / closing lid 19 (see FIG. 4). This airtight holding means may adopt a configuration in which a stretchable seal member 22 is attached to the edge of the slide opening / closing lid 19 as shown in FIG.

  By the rotation operation of the electric damper mechanism 14, the bypass passage 15 can be closed, and the indoor suction port 11 leading to the primary passage of the heat exchanger 6 can be opened (see FIG. 5). Moreover, the bypass passage 15 can be opened and the ventilation passage leading to the primary passage of the heat exchanger 6 can be closed by rotating the electric damper mechanism 14, and the bypass passage 15 can be closed and the heat exchanger 6 can be closed. The ventilation path leading to the primary passage can also be closed. With this configuration, by providing a plurality of specific indoor suction ports 11 and connecting them to the housing, the above three functions can be performed for the indoor suction port 11.

  The inspection port 17 faces the ceiling surface, and an inspection opening 24 with a lid is provided at the position of the ceiling 23 corresponding to the inspection port 17 as shown in FIG. The inspection opening 24 of the ceiling 23 is opened, the slide opening / closing lid 19 is slid laterally along the ceiling 23 with a hand on the handle, and the inspection opening 17 is opened to open the heat exchanger 6 and the air filter 16. Maintenance inspection can be performed. At this time, even if the positional relationship between the inspection opening 24 and the inspection opening 17 of the ceiling 23 is shifted, or when the ceiling 23 and the inspection opening 17 are close to each other, the opening and closing of the slide opening / closing lid 19 is not accompanied by a screw operation or the like. Since it does not interfere with 23, it can be opened and closed. When the opened slide opening / closing lid 19 is closed, an airtight holding means is operated, and an inclined guide 20 that guides and lifts one end side of the slide opening / closing lid 19 with an upward slope at the closed end of the slide opening / closing lid 19, The other end side of the slide opening / closing lid 19 is lifted by the dowel structure 21 of the guide rail 18 and the slide opening / closing lid 19 and is brought into pressure contact with the upper flange of the guide rail 18 to be in contact with the slide opening / closing lid 19. Airtightness between the inspection ports 17 is maintained. If a sealing member is attached to the upper flange of the guide rail 18, the airtightness is more securely maintained. Excessive opening of the slide opening / closing lid 19 is restricted by a stopper 25 provided at the bottom of the main body box 5 and does not fall off.

  This heat exchange ventilator 1 is installed in the space behind the ceiling of the house as shown in FIG. 1 along the ceiling surface, and the indoor air inlet 11 and the indoor air outlet 10 are respectively connected to the room by the duct 2 and the outdoor air inlet A ventilation system that constantly ventilates the entire house can be constructed by connecting the mouth 9 and the outdoor air outlet 12 to the outside. What leads to the bypass passage 15 of the indoor suction port 11 is connected to the bathroom L1, and the other indoor suction port 11 is connected to the toilet L2 and the washroom L3 by the duct 2. The indoor outlet 10 is connected to the living room L4. When the air supply blower 7 and the exhaust blower 8 are operated, outside air is supplied from the living room L4, and the air in the house is exhausted to the outside from the corridor L5, the toilet L2, the washroom L3, and the bathroom L1 through the gallery.

  The supply air flow and the exhaust air flow are continuously heat-exchanged in the heat exchanger 6, and heat exchange ventilation with little variation in the state quantity can be performed. At this time, the toilet L2 and the washroom L3 are always exhausted through the heat exchanger 6. However, for the bathroom L1, the bypass passage 15 is operated, the electric damper mechanism 14 is operated, and the ventilation path leading to the heat exchanger 6 is closed. Then, by opening the bypass passage 15, the heat can be exhausted without passing through the heat exchanger 6. Further, by the operation of the electric damper mechanism 14, the bypass passage 15 is closed, the ventilation path leading to the primary passage of the heat exchanger 6 is also closed, and the ventilation itself of the bathroom L1 can be stopped. As a result, the ventilation by the exhaust can be stopped for the bathroom L1, and the warm air in the bathroom L1 is transferred to the heat exchanger 6 by the bypass passage 15 in the summer without having to feel cold due to ventilation during bathing in winter. Exhaust without passing through.

It is a section lineblock diagram showing a residence to which a heat exchange ventilator is applied. (Embodiment 1) It is the plane block diagram which showed the structure of the heat exchange ventilation apparatus. (Embodiment 1) It is a disassembled perspective view of the main body box of a heat exchange ventilator. (Embodiment 1) It is an expanded sectional view of the B arrow part of FIG. (Embodiment 1) It is sectional drawing which showed the damper apparatus. (Embodiment 1) It is a top view which shows the other form of an airtight holding means. (Embodiment 1)

Explanation of symbols

  1 Heat exchange ventilator, 3 Exhaust passage, 4 Air supply passage, 6 Heat exchanger, 7 Air supply fan, 8 Air exhaust fan, 17 Inspection port, 18 Guide rail, 19 Slide open / close lid, 20 Inclined guide, 21 General structure, 22 seal member.

Claims (4)

An air supply / exhaust heat exchange ventilator with a heat exchanger installed in the space behind the ceiling,
At the bottom of the main body box facing the ceiling surface in the installed state, an inspection port that is opposed to the inspection opening formed on the ceiling surface is opened, and a pair of guide rails having a lower flange and an upper flange are provided in the inspection port, A slide opening / closing lid is provided that can open and close the inspection port by sliding in a lateral direction along the guide rail between the lower flange and the upper flange. The slide opening / closing lid is lifted when closed, and is pressed against the upper flange of the guide rail. Airtight holding means for holding the airtightness between the closed slide opening / closing lid and the inspection port,
The airtight holding means includes
An inclined guide that guides one end of the slide open / close lid on the uphill slope at the closed end of the slide open / close lid and lifts it to the upper flange side of the guide rail, and a lower side of the guide rail that lifts the other end of the slide open / close lid A heat exchange ventilator comprising a flange and a dowel structure projecting from a lower surface of a slide opening / closing lid.   The heat exchange ventilator according to claim 1, further comprising a seal member attached to the slide opening / closing lid as an airtight holding means.   The heat exchange ventilator according to claim 1 or 2, further comprising a stopper for restricting excessive sliding to the open side of the slide opening / closing lid. An exhaust passage for taking in indoor air and exhausting it out of the room and an air supply passage for taking in outdoor air and supplying it into the room are defined in the main body box, and part of the air supply passage is built in. The exhaust passage is partially formed of a primary passage of the heat exchanger, and the supply air passage is supplied with an air flow passing through the secondary passage of the heat exchanger. An air supply blower is provided, and the exhaust passage is provided with an exhaust blower that forms an exhaust flow passing through a primary passage of the heat exchanger;
A plurality of indoor suction ports of the exhaust passage are provided, and the bathroom suction port connected to the bathroom among the plurality of indoor suction ports has a common entrance, and the one entrance is branched into two independent passages. The outlet comprises two ventilation paths in the housing, the outlet of one ventilation path faces the primary path of the heat exchanger, and the other ventilation path is a bypass path that bypasses the heat exchanger, the ventilation path At the branching section of the road, the bypass state which is one of the two ventilation paths is opened and the other state is closed, and the bypass path which is one of the two ventilation paths is closed, Providing a damper device that opens and closes the two ventilation paths so as to switch between a second state in which the other is opened and a third state in which both of the two ventilation paths are closed;
For the bathroom, exhaust that does not perform heat exchange by placing the damper device in the first state, exhaust that performs heat exchange by placing the damper device in the second state, and puts the damper device in the third state The heat exchange ventilator according to any one of claims 1 to 3, characterized in that it can be switched between stopping the ventilation itself.

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