JP6983315B2 - Heat exchange type ventilation system - Google Patents

Description

The present invention relates to a heat exchange type ventilation device that ventilates while exchanging heat between outdoor air and indoor air.

Conventionally, as a ventilation device for ventilating a building, a heat exchange type ventilation device including a heat exchanger for exchanging heat between a supply air flow and an exhaust flow is known. For example, Patent Document 1 discloses a heat exchange type ventilation device in which a channel-shaped filter holder formed in a resin frame body constituting an outer corner portion of a heat exchange element supports an air filter in a detachable manner. ing.

Japanese Unexamined Patent Publication No. 10-300158

However, in the heat exchange type ventilator of Patent Document 1, the air filter is fitted and arranged in the channel-shaped filter holder. In this case, it is necessary to provide a clearance between the air filter and the filter holder in order to absorb the individual product difference in the dimensions of the air filter and the filter holder. For this reason, there is a problem that air leaks from the gap generated between the air filter and the filter holder, and impurities such as dust and insects invade the room.

The present invention has been made in view of the above, and an object of the present invention is to obtain a heat exchange type ventilation device capable of suppressing the intrusion of impurities into the room due to the holding structure of the air filter.

In order to solve the above-mentioned problems and achieve the object, the heat exchange type ventilation device according to the present invention has a first surface and a second surface facing the first surface, and the first surface and the second surface. An exterior box with an air supply air passage for air supply and an exhaust air passage for exhaust flow, and a square columnar heat exchange element and each side extending along the axial direction of the heat exchange element are attached between the two. It is provided with a plurality of heat exchanger frames, and has a heat exchanger installed in the middle of the air supply air passage and the exhaust air passage to exchange heat between the supply air flow and the exhaust flow. In addition, the heat exchange type ventilator is installed inside the outer box, engages with the heat exchanger frame, and guides the attachment and detachment of the heat exchanger to and from the outer box. It has an air filter arranged in the air passage to remove impurities contained in the air supply airflow, and an air filter holding portion provided in the air supply ventilation passage in the outer box to hold the air filter. Air filter holding portion is disposed at a position opposed to the guide rail. The guide rail can move in the direction of movement, from the first surface to the second surface, or from the second surface to the first surface, and the air is at a position supporting the heat exchanger in the moving direction. Hold the filter between the air filter holder and the air filter holder.

The heat exchange type ventilation device according to the present invention has an effect that it is possible to suppress the invasion of impurities into the room due to the holding structure of the air filter.

A perspective view of a state in which the top surface is removed from the heat exchange type ventilator according to the first embodiment of the present invention as viewed from above. A perspective view of a state in which the bottom plate is removed from the heat exchange type ventilator according to the first embodiment of the present invention as viewed from below. The perspective view which shows the structure of the heat exchange type ventilation apparatus which concerns on Embodiment 1 of this invention. Perspective view of the heat exchanger included in the heat exchange type ventilator according to the first embodiment of the present invention. Schematic diagram showing a state in which a heat exchanger and an air filter are inserted in an outer box at the time of assembling the heat exchange type ventilator according to the first embodiment of the present invention. Schematic diagram showing a state in which the heat exchanger and the air filter are fixed at the time of assembling the heat exchange type ventilator according to the first embodiment of the present invention. Schematic diagram showing a state in which the heat exchanger and the air filter are released during maintenance of the heat exchange type ventilator according to the first embodiment of the present invention.

Hereinafter, the heat exchange type ventilator according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.

The heat exchange type ventilator takes in the air in the air-conditioned space and discharges it to the outside of the air-conditioned space, and also takes in the air outside the air-conditioned space and supplies it to the air-conditioned space. Examples of air-conditioned spaces include houses, buildings and warehouses. In the following description, the air-conditioned space is the interior of the building. Further, "outdoor air" refers to the supply air supplied to the room from the heat exchange type ventilator, and "indoor air" refers to the exhaust gas discharged to the outside by the heat exchange type ventilator.

Embodiment 1.
FIG. 1 is a perspective view of a state in which the top surface 51 is removed from the heat exchange type ventilator 100 according to the first embodiment of the present invention as viewed from above. FIG. 2 is a perspective view of a state in which the bottom surface 52 is removed from the heat exchange type ventilator 100 according to the first embodiment of the present invention as viewed from below. FIG. 3 is a perspective view showing the configuration of the heat exchange type ventilation device 100 according to the first embodiment of the present invention. In addition, in FIG. 3, a part of the top surface 51, the front surface 53, and the inside air side side surface 55 of the heat exchange type ventilation device 100 is shown. In addition, the arrow with the hatched dots in FIG. 3 indicates the flow of the air supply flow, and the arrow with the hatched diagonal line indicates the flow of the exhaust flow. FIG. 4 is a perspective view of the heat exchanger 8 included in the heat exchange type ventilator 100 according to the first embodiment of the present invention. FIG. 4 shows a state in which the heat exchanger 8 is viewed from the same direction as in FIG. FIG. 5 is a schematic view showing a state in which the heat exchanger 8 and the air filter 12 are inserted into the outer box 5 at the time of assembling the heat exchange type ventilator 100 according to the first embodiment of the present invention. FIG. 6 is a schematic view showing a state in which the heat exchanger 8 and the air filter 12 are fixed at the time of assembling the heat exchange type ventilator 100 according to the first embodiment of the present invention. Further, in FIG. 6, the flow of the supply air is indicated by a fine solid line arrow, and the thin broken line arrow indicates the flow of the exhaust flow. FIG. 7 is a schematic view showing a state in which the heat exchanger 8 and the air filter 12 are released from being fixed during maintenance of the heat exchange type ventilator 100 according to the first embodiment of the present invention.

The heat exchange type ventilator 100 is a ceiling-embedded type heat exchange type ventilator that is attached to the space behind the ceiling and supplies and exhausts air through a duct. The heat exchange type ventilation device 100 has a rectangular parallelepiped shape having a top surface 51, a bottom surface 52, a front surface 53, a rear surface 54, an inside air side side surface 55, and an outside air side side surface 56, and includes an outer box 5 constituting an outer shell. The outer box 5 has an outside air port 1 for taking in air from the outside, an exhaust port 2 for exhausting air to the outside, a return air port 3 for taking in air from the room, and an air supply port 4 for supplying air to the room. The outside air port 1 and the exhaust port 2 are provided on the outside air side side surface 56. Further, the return air port 3 and the air supply port 4 are provided on the side surface 55 on the inside air side.

Inside the outer box 5, an air supply ventilation passage 5A and an exhaust ventilation passage 5B are formed. The air supply air passage 5A is an air passage for supplying the outdoor air taken in from the outside air port 1 to the room through the air supply port 4. The exhaust ventilation passage 5B is an air passage for exhausting the indoor air taken in from the return air port 3 to the outside through the exhaust port 2. Therefore, the outer box 5 has a top surface 51 which is the first surface and a bottom surface 52 which is the second surface facing the top surface 51, and the air supply airflow is passed between the first surface and the second surface. It is provided with an air supply air passage 5A and an exhaust air passage 5B through which an exhaust flow is passed. Further, it can be said that the inside air side side surface 55 is a side surface arranged on the downstream side of the air supply air passage 5A in the outer box 5. It can be said that the outside air side side surface 56 is a side surface of the outer box 5 arranged on the downstream side of the exhaust ventilation passage 5B.

The air supply air blower 6 is provided in the air supply air passage 5A. By operating the air supply air blower 6, the air supply air flow, which is an air flow, travels from the outside to the inside of the room and passes through the air supply air passage 5A. The air supply blower 6 is configured such that an electric motor 61 and a blade member 62 rotated by the operation of the electric motor 61 are surrounded by an air supply fan casing 63.

An exhaust blower 7 is provided in the exhaust ventilation passage 5B. By operating the exhaust blower 7, the exhaust flow, which is an air flow, travels from the room to the outside and passes through the exhaust ventilation passage 5B. The exhaust blower 7 is configured such that an electric motor 71 and a blade member 72 rotated by the operation of the electric motor 71 are surrounded by an exhaust fan casing 73.

The heat exchanger 8 is located in the middle of the air supply air passage 5A and the exhaust air passage 5B, and is arranged in the center of the outer box 5. The heat exchanger 8 includes a square columnar total heat exchange element 80 and four heat exchanger frames 22 attached to each side 21a extending along the axial direction X of the total heat exchange element 80. The heat exchanger 8 has a front surface in a state where the diagonal lines of the square pillars of the total heat exchange element 80 are laid sideways in the vertical and horizontal directions, and the stacking direction is parallel to the inside air side side surface 55 and the outside air side side surface 56. It is installed so as to straddle the 53 and the rear surface 54. In the first embodiment, the vertical direction is a direction parallel to the direction from the top surface 51 to the bottom surface 52, and corresponds to the Y direction in FIGS. 5 to 7. Further, the left-right direction is a direction parallel to the direction from the inside air side side surface 55 to the outside air side side surface 56.

The total heat exchange element 80 is made of specially processed paper and has a prismatic shape in which the cut surface cut in a plane perpendicular to the axial direction X is a square. The total heat exchange element 80 may have a rectangular cut surface cut in a plane perpendicular to the axial direction X, or a polygonal cut surface cut in a plane perpendicular to the axial direction X. It may be a thing. That is, the total heat exchange element 80 may be formed in a polygonal columnar shape.

The total heat exchange element 80 is supplied with an air supply ventilation passage 83 having a laminated structure formed by a corrugated plate 82 bonded to the flat plate 81 and an exhaust ventilation passage 85 having a laminated structure formed by a corrugated plate 84 adhered to the flat plate 81. It is a rectangular parallelepiped-shaped laminated structure in which a plurality of layers are laminated so that the direction of the air passage 5A and the direction of the exhaust ventilation passage 5B are orthogonal to each other. The sides 21a extending along the axial direction X of the total heat exchange element 80 are four ridges in the stacking direction of the total heat exchange element 80.

The air supply air passage 5A reaches the air supply port 4 from the outside air port 1 via the air supply air passage 83 of the heat exchanger 8 and the air supply air blower 6. The exhaust ventilation passage 5B reaches the exhaust port 2 from the return air port 3 via the exhaust ventilation passage 85 of the heat exchanger 8 and the exhaust blower 7. The supply air ventilation passage 5A and the exhaust ventilation passage 5B are configured independently of each other in the heat exchange type ventilation device 100 so that the supply air and the exhaust air are not mixed.

A maintenance cover 9 is provided at a position facing the end surface of the heat exchanger 8 on the front surface 53 of the outer box 5. By opening the maintenance cover 9, the heat exchanger 8 can be taken in and out of the outer box 5.

A power supply box 10 accommodating a terminal block for connecting to a power supply is provided at a position closer to the side surface 55 on the inside air side than the center of the front surface 53 of the outer box 5.

Further, inside the outer box 5, a plurality of pieces that engage with the heat exchanger frame 22 of the heat exchanger 8 to guide the attachment / detachment of the heat exchanger 8 to / from the outer box 5 and support the heat exchanger 8. A guide rail 11 is provided. The guide rail 11 is attached to the top surface 51, the bottom surface 52, the front surface 53, and the rear surface 54 of the outer box 5. The heat exchanger 8 is incorporated along the guide rail 11 so as to be able to be taken in and out in a direction parallel to the top surface 51. The details of the guide rail 11 will be described later.

Next, the support structure of the heat exchanger 8 and the air filter 12 in the outer box 5 will be described. In the following description, the heat exchanger frame 22 attached to the side 21a on the top surface 51 side of the total heat exchange element 80 is attached to the side 21a on the bottom surface 52 side of the first heat exchanger frame 221 and the total heat exchange element 80. The heat exchanger frame 22 is attached to the second heat exchanger frame 222, the heat exchanger frame 22 attached to the side surface 21a of the outside air side side surface 56 of the total heat exchange element 80 is attached to the third heat exchanger frame 223, and the total heat exchange element. The heat exchanger frame 22 attached to the side 21a on the inner air side side surface 55 side of the 80 is referred to as a fourth heat exchanger frame 224. The top surface 51 side of the total heat exchange element 80 is the upper side in FIGS. 5 to 7. The bottom surface 52 side of the total heat exchange element 80 is the lower side in FIGS. 5 to 7. The outside air side side surface 56 side of the total heat exchange element 80 is the left side in FIGS. 5 to 7. The side surface 55 on the inside air side of the total heat exchange element 80 is the right side in FIGS. 5 to 7.

The heat exchanger 8 is supported by a plurality of guide rails 11 provided in the outer box 5. The plurality of guide rails 11 are U-shaped guide rails having a groove portion in which the side facing the heat exchanger 8 is opened and the heat exchanger frame 22 of the total heat exchange element 80 is fitted, and is heat as shown in FIG. It is arranged around the exchanger 8. The plurality of guide rails 11 are the first surface of the first fixed guide rail 111 and the second fixed guide rail 112 fixed to the outer box 5 in a direction perpendicular to the axial direction X of the heat exchanger 8. It has a first movable guide rail 113 and a second movable guide rail 114 that are movably supported by the outer box 5 in a moving direction parallel to the direction from the surface 51 to the bottom surface 52, which is the second surface. The first fixed guide rail 111 and the second fixed guide rail 112 are provided with the heat exchanger 8 interposed therebetween in the vertical direction. The first movable guide rail 113 and the second movable guide rail 114 are provided with the heat exchanger 8 interposed therebetween in the left-right direction.

The first fixed guide rail 111 is a guide rail 11 into which the first heat exchanger frame 221 of the total heat exchange element 80 is fitted, and is a rail extending in the axial direction X of the heat exchanger 8. The first fixing guide rail 111 is fixed to the top surface 51 at the central portion in the left-right direction of the outer box 5 by a screw that is not removed during maintenance. The first fixed guide rail 111 has a groove width larger than the width of the first heat exchanger frame 221. The first fixed guide rail 111 is located on the outside air side side surface 56 side, and an elastic seal member 18 is attached to the inside side surface extending in parallel with the inside air side side surface 55 and the outside air side side surface 56.

The second fixed guide rail 112 is a guide rail 11 into which the second heat exchanger frame 222 of the total heat exchanger 80 is fitted, and is a rail extending in the axial direction X of the heat exchanger 8. The second fixing guide rail 112 is fixed to the bottom surface 52 at the center portion in the left-right direction of the outer box 5 by a screw that is not removed during maintenance. The second fixed guide rail 112 has a groove width larger than the width of the second heat exchanger frame 222. The second fixed guide rail 112 has an elastic sealing member 18 attached to the inner side surface located on the inner air side side surface 55 side and extending in parallel with the inner air side side surface 55 and the outer air side side surface 56.

The first movable guide rail 113 and the second movable guide rail 114 are rails extending in the axial direction X of the heat exchanger 8 and are movably supported by the front surface 53 and the rear surface 54. The support portions of the first movable guide rail 113 and the second movable guide rail 114 on the front surface 53 and the rear surface 54 are, for example, a structure for fixing a screw to an elongated hole extending in the vertical direction, or a plurality of attachments provided in the vertical direction. It has a structure such as a structure for inserting into a hole. As a result, the first movable guide rail 113 and the second movable guide rail 114 are supported so as to be movable in the vertical direction in a state perpendicular to the front surface 53 and the rear surface 54. As shown in FIG. 5, the first movable guide rail 113 and the second movable guide rail 114 are provided on both sides of the heat exchanger 8 in the left-right direction. The first movable guide rail 113 and the second movable guide rail 114 also function as a rotational force applying portion that applies a rotational force F in one direction shown by a circular arrow in FIG. 6 to the heat exchanger 8. The first movable guide rail 113 and the second movable guide rail 114 may be supported by the air supply fan casing 63 and the exhaust fan casing 73 so as to be movable in the moving direction.

The first movable guide rail 113 is arranged on the outside air side side surface 56 side of the heat exchanger 8. That is, the first movable guide rail 113, Ru heat exchanger frame 22 der attached to the sides 21a disposed on the downstream side of the exhaust ventilation passage 5B, the third heat exchanger frame 223 of the total heat exchange element 80 It is a guide rail 11 to be fitted, and has a groove width larger than the width of the third heat exchanger frame 223. An elastic sealing member 18 is attached to the inner side surface of the first movable guide rail 113, which is located on the top surface 51 side and extends in parallel with the top surface 51 and the bottom surface 52.

The second movable guide rail 114 is arranged on the inside air side side surface 55 side of the heat exchanger 8. That is, the second movable guide rail 114, in the outer box 5, Ru heat exchanger frame 22 der attached to the sides 21a disposed on the downstream side of the supply ventilation passage 5A, the total heat exchange element 80 the The guide rail 11 into which the 4 heat exchanger frame 224 is fitted, and has a groove width larger than the width of the 4th heat exchanger frame 224. The second movable guide rail 114 has an elastic sealing member 18 attached to an inner surface surface located on the bottom surface 52 side and extending in parallel with the top surface 51 and the bottom surface 52.

Further, an air filter holding guide rail 13 which is an air filter holding portion for holding the air filter 12 is fixed to the top surface 51 above the second movable guide rail 114. The air filter holding guide rail 13 is a rail extending in the axial direction X of the heat exchanger 8. The air filter holding guide rail 13 is a U-shaped guide rail having a groove portion in which the bottom surface 52 side is opened and the upper end portion of the air filter 12 is fitted. The air filter holding guide rail 13 is provided with air from other than the air filter 12 from the space upstream of the air filter 12 partitioned by the air filter 12 to the space downstream of the air filter 12 in the air supply ventilation passage 5A. In order to suppress the flow, a sealing member 18 parallel to the elastic top surface 51 is attached to the inner surface of the groove portion. In addition, in FIGS. 1 to 3, the air filter 12 is not shown.

In the heat exchange type ventilator 100 configured in this way, when the air filter 12 is attached to the outer box 5, first, as shown in FIG. 5, the first movable guide rail 113 is placed on the upper side, that is, on the top surface 51 side. While moving, the second movable guide rail 114 is moved downward, that is, toward the bottom surface 52 and arranged.

As a result, as shown in FIG. 5, between the seal member 18 and the first movable guide rail 113 attached to the first movable guide rail 113 and the third heat exchanger frame 223 of the total heat exchange element 80, and It was formed on the front surface 53 with the seal member 18 attached to the second movable guide rail 114 and the second movable guide rail 114 separated from the fourth heat exchanger frame 224 of the total heat exchange element 80. The heat exchanger 8 can be easily slid and inserted into the outer box 5 from the maintenance opening 17. In this case, a clearance is provided between the seal member 18 and the first movable guide rail 113 attached to the first movable guide rail 113 and the third heat exchanger frame 223 of the total heat exchange element 80. 2 Since a clearance is provided between the seal member 18 and the second movable guide rail 114 attached to the movable guide rail 114 and the fourth heat exchanger frame 224 of the total heat exchange element 80, the maintenance opening 17 The heat exchanger 8 can be easily inserted into the outer box 5.

That is, the first movable guide rail 113 has a groove width larger than the sum of the thickness of the seal member 18 attached to the first movable guide rail 113 and the width of the third heat exchanger frame 223. The second movable guide rail 114 has a groove width larger than the sum of the thickness of the seal member 18 attached to the second movable guide rail 114 and the width of the fourth heat exchanger frame 224.

Further, in this state, a clearance having a dimension larger than the vertical width dimension of the air filter 12 is provided between the second movable guide rail 114 and the seal member 18 attached to the air filter holding guide rail 13. .. As a result, the air filter 12 can be easily slid and inserted into the outer box 5 from the maintenance opening 17 formed in the front surface 53. The vertical width dimension of the air filter 12 is the vertical dimension of the air filter 12, and is the height dimension.

In this case, since the clearance member 18 attached to the air filter holding guide rail 13 and the second movable guide rail 114 are provided with a clearance larger than the vertical width dimension of the air filter 12. The heat exchanger 8 can be easily inserted into the outer box 5 from the maintenance opening 17. When the seal member 18 is not attached to the air filter holding guide rail 13, the vertical direction of the air filter 12 is between the second movable guide rail 114 and the inner bottom surface of the air filter holding guide rail 13. A clearance having a dimension larger than the width dimension will be provided.

After that, as shown in FIG. 6, the first movable guide rail 113 is fixed at a position moved downward, that is, the bottom surface 52 side, and the seal member 18 attached to the first movable guide rail 113 is subjected to the third heat exchange. It is pressed against the side surface of the vessel frame 223 on the top surface 51 side. As a result, the first movable guide rail 113 presses the third heat exchanger frame 223 downward via the seal member 18. Further, the second movable guide rail 114 is fixed at a position moved upward, that is, toward the top surface 51, and the seal member 18 attached to the second movable guide rail 114 is attached to the bottom surface 52 of the fourth heat exchanger frame 224. Press against the side of the side. As a result, the second movable guide rail 114 pushes the fourth heat exchanger frame 224 upward via the seal member 18.

As a result, the heat exchanger 8 is given a rotational force F in one direction as shown by the circular arrow in FIG. 6, and the first heat exchanger frame is attached to the seal member 18 attached to the first fixed guide rail 111. The side surface of the outside air side side surface 56 side of the 221 is pressed against the seal member 18 attached to the second fixed guide rail 112, and the side surface of the second heat exchanger frame 222 on the inside air side side surface 55 side is pressed against the seal member 18. The first fixed guide rail 111 is fixed to the top surface 51, and the second fixed guide rail 112 is fixed to the bottom surface 52. As a result, all of the heat exchanger frames 22 at the four corners of the heat exchanger 8 are pressed against the plurality of guide rails 11, and the heat exchanger 8 is supported by the plurality of guide rails 11 in the outer box 5. It is fixed.

Further, when the second movable guide rail 114 is pressed against the lower surface of the air filter 12, that is, the end surface on the bottom surface 52 side, the air filter 12 is pressed toward the top surface 51 side, and the second movable guide rail 114 is pressed. The air filter 12 is held between the air filter holding guide rail 13 and the air filter holding guide rail 13. Here, when the second movable guide rail 114 is pressed against the air filter 12 by the rotational force F and there is an individual difference in the vertical width dimension of the air filter 12, and when the second movable guide rail 114 is vertical. Even if there are individual differences in the width dimension in the direction, the air filter 12 can be held by suppressing the generation of a gap between the second movable guide rail 114 and the air filter holding guide rail 13. As a result, it is possible to prevent air from leaking from between the second movable guide rail 114 and the air filter holding guide rail 13 and prevent dust and insects from entering the room. By fixing the air filter 12 in a state of being pressed toward the top surface 51 in this way, it is possible to reduce the gap in the holding structure of the air filter 12, and the air filter 12 is partitioned by the air filter 12 in the air supply ventilation passage 5A. It is possible to suppress the flow of air other than the air filter 12 from the space upstream of the air filter 12 to the space downstream of the air filter 12.

Further, the air filter 12 is fixed in a state of being sandwiched between the maintenance cover 9 and the rear surface 54 by closing the maintenance cover 9. As a result, it is possible to reduce the gap in the holding structure of the air filter 12, and the space on the upstream side of the air filter 12 partitioned by the air filter 12 in the air supply air passage 5A is on the downstream side of the air filter 12. The flow of air to the space other than the air filter 12 can be further suppressed. The air filter 12 is preferably fixed in close contact with the maintenance cover 9 and the rear surface 54.

Further, by providing the seal member 18 between the air filter holding guide rail 13 and the air filter 12, the seal member 18 is pressed against the air filter 12 and the seal member 18 is compressed. Thereby, the generation of a gap between the second movable guide rail 114 and the air filter holding guide rail 13 can be further suppressed.

Further, the heat exchanger 8 rotates in one direction around the axis of the heat exchanger 8 shown by the circular arrow in FIG. 6 in the outer box 5, and is circular around the axis of the heat exchanger 8. It is possible to rotate in the other direction, which is the opposite direction of the arrow. Therefore, the heat exchanger 8 is slid into the outer box 5 in a state of being slightly rotated in the other direction around the axis of the heat exchanger 8 from the proper posture after being attached to the outer box 5. Can be inserted.

In this case, the seal member 18 attached to the first fixed guide rail 111 and the first fixed guide rail 111 and the first heat exchanger frame 221 are separated from each other and attached to the second fixed guide rail 112. The seal member 18 and the second fixed guide rail 112 and the second heat exchanger frame 222 are separated from each other, and the seal member 18 and the first movable guide rail 113 and the third heat attached to the first movable guide rail 113 are separated from each other. Heat exchange with the seal member 18 attached to the second movable guide rail 114 and the second movable guide rail 114 and the fourth heat exchanger frame 224 separated from each other with the exchanger frame 223. The vessel 8 can be slid into the outer box 5 and inserted. This makes it easier to insert the heat exchanger 8 into the outer box 5 from the maintenance opening 17.

On the other hand, at the time of maintenance, the work opposite to that at the time of attaching the heat exchanger 8 and the air filter 12 to the outer box 5 may be performed. That is, the first movable guide rail 113 is fixed at a position moved upward ie top 51 side, a sealing member 18 attached to the first movable guide rail 113 side surface of the third heat exchanger frame 223 Separate from. As a result, the rotational force F by the first movable guide rail 113 is released, and the state in which the first movable guide rail 113 presses the third heat exchanger frame 223 downward via the seal member 18 is released.

Further, the second movable guide rail 114 the lower side, that is fixed at a position moved to the bottom surface 52 side from the seal member 18 affixed to the second movable guide rail 114 side surface of the fourth heat exchanger frame 224 Release. As a result, the rotational force F by the second movable guide rail 114 is released, and the state in which the second movable guide rail 114 presses the fourth heat exchanger frame 224 upward via the seal member 18 is released. As a result, the heat exchanger 8 can be easily slid and removed from the outer box 5, and the inside of the heat exchanger 8 and the outer box 5 can be maintained.

Further, by fixing the second movable guide rail 114 in a position moved downward That bottom 52 side, the lower surface of the air filter 12 is separated from the second movable guide rail 114, or attached to the air filter retention guide rails 13 The upper surface of the air filter 12 is separated from the attached seal member 18. As a result, a clearance larger than the vertical width dimension of the air filter 12 is provided between the seal member 18 attached to the air filter holding guide rail 13 and the second movable guide rail 114. When the seal member 18 is not attached to the air filter holding guide rail 13, the vertical direction of the air filter 12 is between the inner bottom surface of the air filter holding guide rail 13 and the second movable guide rail 114. A clearance larger than the width dimension will be provided.

As a result, the state in which the air filter 12 is sandwiched between the air filter holding guide rail 13 and the second movable guide rail 114 is released. As a result, the air filter 12 can be easily slid and removed from the outer box 5, and the inside of the air filter 12 and the outer box 5 can be maintained. Further, the air filter 12 is attached and detached by preventing the seal member 18 attached to the air filter holding guide rail 13 from being torn or peeled off due to the interference without deteriorating the seal member 18 due to the interference with the air filter 12. Is possible. Further, it is possible to reduce the pushing load and the pulling load of the air filter 12 when the air filter 12 is attached and detached.

Therefore, the second movable guide rail 114 supports and fixes the heat exchanger 8 at an appropriate mounting position at the first position on the upper side predetermined in the moving direction, and also provides the air filter 12. It is held between the air filter holding guide rail 13 and the air filter holding guide rail 13. Further, the second movable guide rail 114 is separated from the heat exchanger 8 and the air filter 12 at a second position on the lower side predetermined in the moving direction.

Further, the first movable guide rail 113 supports and fixes the heat exchanger 8 at an appropriate mounting position of the heat exchanger 8 at a third position on the lower side predetermined in the moving direction. Further, the first movable guide rail 113 is separated from the heat exchanger 8 at a predetermined fourth position in the moving direction in which the heat exchanger 8 is not supported and fixed.

As described above, the heat exchange type ventilation device 100 according to the first embodiment can reduce the gap in the holding structure of the air filter 12, and the air partitioned by the air filter 12 in the air supply ventilation passage 5A. It is possible to suppress the flow of air other than the air filter 12 from the space upstream of the filter 12 to the space downstream of the air filter 12. As a result, it is possible to prevent air from leaking from between the second movable guide rail 114 and the air filter holding guide rail 13 and invading impurities such as dust and insects into the room, which is caused by the holding structure of the air filter 12. It is possible to prevent impurities from entering the room. As a result, the heat exchange type ventilator 100 can improve the cleanliness of the air introduced into the room.

Further, in the heat exchange type ventilator 100, the air filter 12 is fixed at the same time by fixing the heat exchanger 8, and the air filter 12 is released at the same time by releasing the fixing of the heat exchanger 8. The air filter 12 can be easily attached and detached.

Further, the heat exchange type ventilator 100 can fix the air filter 12 with a simple configuration such as an air filter holding guide rail 13, a seal member 18, and a guide rail 11 for fixing the heat exchanger 8, and is also durable. No problem occurs.

That is, the heat exchange type ventilation device 100 can realize maintainability when the air filter 12 is attached and detached and suppression of impurities such as dust and insects from entering the room with a simple configuration.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations as long as it does not deviate from the gist of the present invention. It is also possible to omit or change the part.

1 Outside air port, 2 Exhaust port, 3 Return air port, 4 Air supply port, 5 Exterior box, 5A, 83 Air supply ventilation path, 5B, 85 Exhaust ventilation path, 6 Supply air blower, 7 Exhaust blower, 8 Heat exchanger , 9 maintenance cover, 10 power box, 11 guide rail, 12 air filter, 13 air filter holding guide rail, 17 maintenance opening, 18 seal member, 21a side, 22 heat exchanger frame, 51 top surface, 52 bottom surface, 53 front surface. , 54 rear surface, 55 inside air side side, 56 outside air side side, 61,71 electric motor, 62,72 blade members, 63 air supply fan casing, 73 exhaust fan casing, 80 total heat exchange element, 81 flat plate, 82,84 Corrugated plate, 100 heat exchange type ventilator, 111 1st fixed guide rail, 112 2nd fixed guide rail, 113 1st movable guide rail, 114 2nd movable guide rail, 221 1st heat exchanger frame, 222 2nd heat Exchanger frame, 223 3rd heat exchanger frame, 224 4th heat exchanger frame, F rotational force, X-axis direction.

Claims (4)

It has a first surface and a second surface facing the first surface, and between the first surface and the second surface, an air supply air passage for passing an air supply air and an exhaust air passage for passing an exhaust flow are provided. With an outer box equipped
It is provided with a square columnar heat exchange element and a plurality of heat exchanger frames attached to each side extending along the axial direction of the heat exchange element, and is installed in the middle between the air supply air passage and the exhaust air passage. A heat exchanger that exchanges heat between the air supply and the exhaust flow,
A plurality of guide rails installed inside the outer box and engaged with the heat exchanger frame to guide the attachment / detachment of the heat exchanger to / from the outer box.
An air filter arranged in the air supply air passage in the outer box to remove impurities contained in the air supply airflow, and an air filter.
An air filter holding portion provided in the air supply air passage in the outer box and holding the air filter,
It is a heat exchange type ventilation device with
The air filter holder is positioned in front Symbol guide rails facing position,
The guide rail can move in the direction of movement, from the first surface to the second surface, or from the second surface to the first surface, and the heat exchanger in the moving direction can be moved. Holding the air filter between the air filter holding portion and the supporting position,
A heat exchange type ventilator featuring. Before outs Idoreru is that it presses the air filter on the first surface side,
The heat exchange type ventilation apparatus according to claim 1. Before outs Idoreru shall be spaced from the air filter at a position that does not support the heat exchanger in the direction of movement,
The heat exchange type ventilation apparatus according to claim 2. The air filter is provided with a sealing member on the surface in contact with the air filter.
The heat exchange type ventilation apparatus according to any one of claims 1 to 3.

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