JP6972333B2 - Heat exchange ventilator - Google Patents

Description

The present invention relates to a heat exchange ventilation device that ventilates while exchanging heat between a supply air flow and an exhaust flow.

Heat exchange ventilators installed on the ceiling of a house or the like are generally installed horizontally in which an air supply blower, a heat exchanger, and an exhaust blower are arranged horizontally in order to suppress vertical dimensions. When the heat exchange ventilator is installed on the wall surface of the room, the heat exchange ventilator may be installed vertically in which the air supply blower, the heat exchanger, and the exhaust blower are arranged in the vertical direction.

Patent Document 1 discloses a heat exchange ventilation device that is fixed to a wall surface of a room by a mounting bracket attached to a housing of the heat exchange ventilation device and is vertically installed. The mounting brackets are mounted on the two sides constituting the housing.

Japanese Unexamined Patent Publication No. 2005-106443

Conventionally, in order to prevent leakage of drain water caused by condensation of water contained in the air taken into the housing of the heat exchange ventilation device, the heat exchange ventilation device is provided with a drain receiver for holding the drain water. .. The drain water is stored in the drain receiver and then discharged to the outside of the housing through the drain port provided in the housing. In order to encourage the flow of drain water from the drain receiver to the drain, the housing may be tilted so that it has a downward slope toward the drain.

The heat exchange ventilator disclosed in Patent Document 1 has a drain receiver provided on the lower surface of the housing and a pipe provided on the side of the drain receiver for draining drain water. In the case of the heat exchange ventilation device of Patent Document 1, in order to install the housing in an inclined state, it is necessary to adjust the inclination of the housing when fixing the housing to the wall surface by the mounting bracket. Since it is difficult to adjust the inclination of the housing when fixing the housing, in the heat exchange ventilator of Patent Document 1, the workability at the time of installation is lowered by the adjustment for promoting the discharge of drain water. There was a problem.

The heat exchange ventilation device can be installed horizontally or vertically, which makes it possible to increase the degree of freedom in the installation mode. It is desired that the heat exchange ventilator can be installed horizontally and vertically by using a common mounting bracket in order to reduce the number of parts and enable installation with a high degree of freedom. Further, it is desired that the heat exchange ventilation device can be easily installed so that the drain water can be discharged regardless of whether the horizontal installation or the vertical installation is selected.

The present invention has been made in view of the above, and provides a heat exchange ventilator that can easily realize an installation that can promote the discharge of drain water regardless of whether horizontal installation or vertical installation is selected. The purpose is to get.

In order to solve the above-mentioned problems and achieve the object, the heat exchange ventilation device according to the present invention exchanges heat between the supply air flow and the exhaust flow. The heat exchange ventilation device according to the present invention is supplied from a first plate portion provided with a supply air suction port and an exhaust air outlet, a second plate portion facing the first plate portion, and a supply air suction port. The third plate and the fourth plate which form the air supply air passage which is the air flow path toward the air outlet and the exhaust air passage which is the exhaust flow path from the exhaust suction port to the exhaust air outlet and face each other. A housing having a portion, a fifth plate portion perpendicular to the first plate portion and the third plate portion and facing each other, and a sixth plate portion is provided. The heat exchange ventilation device according to the present invention is a component suspended from a structure facing the third plate portion when the posture of the housing is the first posture with the third plate portion facing upward. It is attached to a structure that faces the third plate portion when the posture of the housing is the second posture with the second plate portion facing upward. It is mounted on the side of the first plate portion with respect to the first mounting bracket and the first mounting bracket having a hooking portion protruding so as to be crossed with the parts, and the posture of the housing is the first posture. A second mounting bracket and a third mounting bracket having a second fixing portion that is fixedly projected to a component suspended from a structure facing the third plate portion are provided. The heat exchange ventilation device according to the present invention is a first drainage system that stands perpendicular to the fifth plate portion and discharges drain water to the outside of the housing when the posture of the housing is the first posture. It is provided with a mouth and a second drainage port which is erected perpendicular to the first plate portion and drains drain water to the outside of the housing when the posture of the housing is the second posture. The crossing portion is bent so as to extend upward from the height of the second plate portion and then downward in a state where the housing is in the second posture, and the crossing portion is bent with respect to the third plate portion. It is inclined.

The heat exchange ventilation device according to the present invention has an effect that it is possible to easily realize an installation that can promote the discharge of drain water regardless of whether the horizontal installation or the vertical installation is selected.

The figure which shows the structure of the heat exchange ventilation apparatus which concerns on Embodiment 1 of this invention. A first plan view showing the heat exchange ventilator shown in FIG. A second plan view showing the heat exchange ventilator shown in FIG. The figure explaining the air passage included in the heat exchange ventilation apparatus shown in FIG. The figure explaining the arrangement of the heat exchanger included in the heat exchange ventilator shown in FIG. A perspective view showing a first example of a heat exchanger included in the heat exchange ventilator shown in FIG. 1. A perspective view showing a second example of the heat exchanger included in the heat exchange ventilator shown in FIG. 1. Sectional drawing of the heat exchange ventilation apparatus in line VIII-VIII shown in FIG. The figure which shows the state which the heat exchange ventilation apparatus shown in FIG. 8 is arranged in a vertical installation. A perspective view showing a first mounting bracket included in the heat exchange ventilator shown in FIG. 1. An enlarged view showing a portion of the first mounting bracket shown in FIG. 10 on the side of the fifth plate portion. An enlarged view showing a portion of the first mounting bracket shown in FIG. 10 on the side of the sixth plate portion. A perspective view showing a second mounting bracket and a third mounting bracket included in the heat exchange ventilator shown in FIG. 1. Front view showing the state in which the heat exchange ventilation device shown in FIG. 1 is installed by suspending from the ceiling. A side view showing a state in which the heat exchange ventilation device shown in FIG. 1 is installed by hanging on a wall.

Hereinafter, the heat exchange 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.

Embodiment 1.
FIG. 1 is a diagram showing a configuration of a heat exchange ventilation device 100 according to a first embodiment of the present invention. FIG. 2 is a first plan view showing the heat exchange ventilation device 100 shown in FIG. FIG. 3 is a second plan view showing the heat exchange ventilation device 100 shown in FIG. The heat exchange ventilation device 100 is a device capable of performing ventilation while exchanging heat between the exhaust flow and the supply air flow. FIG. 1 shows a perspective view of the heat exchange ventilation device 100 in a disassembled state.

The heat exchange ventilator 100 can be installed both horizontally and vertically. When the heat exchange ventilation device 100 is installed on the ceiling, it is horizontally installed. When the heat exchange ventilation device 100 is wall-mounted and installed on a wall surface, it is vertically installed. FIG. 2 shows a configuration when the heat exchange ventilation device 100 installed horizontally is viewed from below. FIG. 3 shows a configuration when the heat exchange ventilation device 100 installed horizontally is viewed from the front.

The heat exchange ventilation device 100 maintains a comfortable air environment in the room by ventilating the room by supplying air from the outside to the room and exhausting air from the room to the outside. Further, the heat exchange ventilation device 100 reduces the temperature difference between the air taken into the room and the air in the room by exchanging heat between the supply air flow and the exhaust flow, and reduces the burden of air conditioning in the room.

The heat exchange ventilator 100 includes an air supply blower 2 that generates an air supply, an exhaust blower 3 that generates an exhaust flow, a heat exchanger 4 that exchanges heat between the air supply and the exhaust flow, and an air supply blower 2. It includes a housing 1 in which an exhaust blower 3 and a heat exchanger 4 are housed. The air supply blower 2 takes in the outdoor air into the housing 1 and sends the air taken into the housing 1 into the room. The exhaust blower 3 takes in the air in the room into the housing 1 and sends the air taken in the housing 1 to the outside of the room. The housing 1 is provided with an air supply air passage through which the air supply airflow passes and an exhaust air passage through which the exhaust air flow passes.

When the heat exchange ventilator 100 is installed horizontally, the air supply blower 2, the heat exchanger 4, and the exhaust blower 3 are arranged in the horizontal direction. When the heat exchange ventilator 100 is installed vertically, the air supply blower 2, the heat exchanger 4, and the exhaust blower 3 are arranged in the vertical direction. In the following description, the posture of the housing 1 when the heat exchange ventilation device 100 is installed in a horizontal installation is the first posture, and the posture of the housing 1 when the heat exchange ventilation device 100 is installed in a vertical installation is the first posture. It is called the second posture.

The housing 1 is a box body having a rectangular parallelepiped shape, and is composed of six plate portions 1a, 1b, 1c, 1d, 1e, and 1f. The plate portion 1c, which is the first plate portion, is a portion provided with a supply air suction port 5 and an exhaust air outlet 8. The plate portion 1d, which is the second plate portion, is provided with a supply air outlet 6 and an exhaust suction port 7. When the housing 1 is in the first posture, the plate portions 1c and 1d are side portions that are turned sideways. The plate portion 1c forms one end of the rectangular parallelepiped shape exhibited by the housing 1. The plate portion 1d forms the other end of the rectangular parallelepiped shape exhibited by the housing 1.

The plate portion 1a, which is the third plate portion, and the plate portion 1b, which is the fourth plate portion, are portions provided between the plate portion 1c and the plate portion 1d so as to face each other. When the housing 1 is in the first posture, the plate portion 1a is a portion that becomes a top surface facing upward. When the housing 1 is in the first posture, the plate portion 1b is a portion that becomes a bottom surface that is directed downward. The plate portion 1a and the plate portion 1b are an air supply air passage which is a path of airflow from the air supply suction port 5 to the air supply outlet 6 through the heat exchanger 4, and the heat exchanger 4 from the exhaust suction port 7. It constitutes an exhaust air passage which is a path of an exhaust flow passing through the exhaust air outlet 8 to the exhaust outlet 8.

The plate portion 1e, which is the fifth plate portion, and the plate portion 1f, which is the sixth plate portion, are portions perpendicular to the plate portion 1c and the plate portion 1a, and the plate portion 1c and the plate portion 1d are formed. It is a part provided facing each other in between. When the housing 1 is in the first posture, the plate portion 1e is a front portion facing forward. When the housing 1 is in the first posture, the plate portion 1f is a portion that becomes a rearward facing portion.

The plate portion 1e is provided with a control device 9 that controls the entire heat exchange ventilation device 100. The control device 9 controls the ventilation air volume of the heat exchange ventilation device 100 by controlling the drive of the air supply blower 2 and the drive of the exhaust blower 3.

An opening 10 is formed in the plate portion 1b at a position facing the heat exchanger 4. The position of the opening 10 is the position on the lower side of the heat exchanger 4 when the housing 1 is in the first posture. When the heat exchange ventilation device 100 is horizontally installed behind the ceiling, the ceiling is provided with an opening 10 from below the ceiling and an inspection port 11 for working with the control device 9. In FIGS. 1 and 2, the range of the inspection port 11 is shown by a broken line. The components housed in the housing 1 are removable through the opening 10.

When the housing 1 is in the second posture, the plate portion 1c is the bottom surface, the plate portion 1d is the top surface, the plate portion 1b is the front surface, the plate portion 1a is the back surface, and the plate portions 1e and 1f are the side surfaces. Become. As a case where the heat exchange ventilation device 100 is installed vertically, it may be installed by being embedded in the wall of a living room, or it may be installed by being hung on a wall surface of a room such as a machine room or a storage room other than the living room of a building. obtain. Since the heat exchange ventilation device 100 is hung with the opening 10 facing the front, the work on the opening 10 and the control device 9 can be performed from the front without going through the inspection port 11. In the heat exchange ventilation device 100, since the housing 1 is in the second posture, the work can be performed without going through the inspection port 11, and the workability at the time of maintenance may be improved. When the heat exchange ventilation device 100 is embedded in the wall and installed, the heat exchange ventilation device 100 may be able to work on the opening 10 and the control device 9 through the inspection port 11 formed on the wall surface.

The drain pan 12, which is the first drain receiver, is arranged below the heat exchanger 4 when the housing 1 is in the first posture. The drain pan 12 stores the drain water generated in the heat exchanger 4 when the housing 1 is in the first posture. The drain pan 12 closes the opening 10 by being attached to the plate portion 1b.

The air supply filter 13 is arranged inside the housing 1 on the plate portion 1c side of the heat exchanger 4. The exhaust filter 14 is arranged inside the housing 1 on the plate portion 1d side of the heat exchanger 4.

FIG. 4 is a diagram illustrating an air passage included in the heat exchange ventilation device 100 shown in FIG. FIG. 4 shows a state in which the internal configuration of the housing 1 is viewed from below when the housing 1 is in the first posture.

The heat exchange ventilation device 100 has a damper 20 for switching between heat exchange ventilation and normal ventilation. Heat exchange ventilation is ventilation that involves heat exchange between the supply airflow 17 and the exhaust flow 18. In the heat exchange ventilation, the heat exchange ventilation device 100 sends the supply airflow 17 that has undergone heat exchange with the exhaust flow 18 by the heat exchanger 4 into the room. The heat exchange ventilation device 100 reduces the air conditioning burden by bringing the temperature of the outdoor air closer to the temperature of the indoor air by heat exchange ventilation when the indoor temperature is more comfortable than the outdoor temperature.

Normal ventilation is ventilation without heat exchange between the supply airflow 17 and the exhaust flow 18. In normal ventilation, the heat exchange ventilation device 100 sends a supply airflow 17 that does not undergo heat exchange with the exhaust flow 18 by the heat exchanger 4 into the room. When the outdoor temperature is more comfortable than the indoor temperature, the heat exchange ventilation device 100 sends air at a comfortable temperature from the outdoor to the indoor by normal ventilation to make the indoor comfortable temperature and reduce the air conditioning load. .. Further, in the normal ventilation, the pressure loss due to the passage of the exhaust flow 18 to the heat exchanger 4 is suppressed, so that the power consumption of the heat exchange ventilation device 100 can be reduced. In FIG. 4, the exhaust flow 18 is the exhaust flow in the case of heat exchange ventilation. The bypass airflow 19 is an exhaust flow in the case of normal ventilation. The housing 1 is provided with an air supply air passage 15 through which the air supply airflow 17 passes, and an exhaust air passage 16 through which the exhaust airflow 18 and the bypass airflow 19 pass.

The air supply air passage 15 includes an upstream air passage 15a between the air supply air inlet 5 and the surface of the heat exchanger 4 from which the air supply airflow 17 flows, and a surface of the heat exchanger 4 where the airflow 17 flows out. Includes the downstream air passage 15b between the air supply outlet 6 and the air supply outlet 6. The air supply airflow 17 sucked into the air supply air suction port 5 from the outside passes through the upstream air passage 15a, passes through the air supply filter 13, and then flows into the heat exchanger 4. The air supply airflow 17 flowing out of the heat exchanger 4 passes through the downstream air passage 15b and is blown out from the air supply outlet 6 toward the room.

The exhaust air passage 16 includes an upstream air passage 16a between the exhaust suction port 7 and the surface of the heat exchanger 4 where the exhaust flow 18 flows in, and the surface of the heat exchanger 4 where the exhaust flow 18 flows out and the exhaust gas. Includes the downstream air passage 16b between the air outlet 8 and the air outlet 8. The exhaust flow 18 sucked from the room into the exhaust suction port 7 passes through the upstream air passage 16a, passes through the exhaust filter 14, and then flows into the heat exchanger 4. The exhaust flow 18 flowing out of the heat exchanger 4 passes through the downstream air passage 16b and is blown out from the exhaust outlet 8 toward the outside.

The bypass air passage 21 is an air passage provided outside the heat exchanger 4. The upstream air passage 16a is provided with a heat exchange side opening 22 through which the exhaust flow 18 toward the heat exchanger 4 passes and a bypass side opening 23 through which the bypass air flow 19 toward the bypass air passage 21 passes. There is. The damper 20 is rotatably supported between the heat exchange side opening 22 and the bypass side opening 23. The damper 20 as a switching unit switches between the flow of the exhaust flow 18 from the exhaust suction port 7 to the heat exchanger 4 and the flow of the bypass airflow 19 from the exhaust suction port 7 to the bypass air passage 21. The control device 9 controls switching between heat exchange ventilation and normal ventilation by controlling the operation of the damper 20.

In heat exchange ventilation, the damper 20 closes the bypass side opening 23. The exhaust flow 18 passes from the upstream air passage 16a through the heat exchange side opening 22 and proceeds to the heat exchanger 4. On the other hand, in normal ventilation, the damper 20 closes the heat exchange side opening 22. The bypass airflow 19 passes from the upstream side air passage 16a through the bypass side opening 23 and proceeds to the bypass air passage 21. The exhaust flow 18 that has passed through the heat exchanger 4 and the bypass airflow 19 that has passed through the bypass air passage 21 pass through the downstream air passage 16b and proceed to the exhaust outlet 8. Each air passage formed in the housing 1 is provided with a heat insulating component 27 shown in FIG. 1 in order to prevent dew condensation from occurring.

FIG. 5 is a diagram illustrating an arrangement of the heat exchanger 4 included in the heat exchange ventilator 100 shown in FIG. FIG. 5 shows a perspective view of a state in which the drain pan 12, the air supply filter 13, and the exhaust filter 14 are removed from the heat exchange ventilation device 100. The heat exchanger 4 is arranged between the plate portion 1a and the drain pan 12. The heat exchanger 4 is located in the center of the housing 1 in the longitudinal direction of the housing 1.

During maintenance of the heat exchange ventilator 100, the drain pan 12 is removed from the opening 10, and the air supply filter 13 and the exhaust filter 14 are removed from the inside of the housing 1 through the opening 10. Further, the heat exchanger 4, the air supply blower 2, and the exhaust blower 3 are removed from the inside of the housing 1 through the opening 10. Immediately below the heat exchanger 4 when the housing 1 is in the first posture, a plurality of holding plates 24 are provided to prevent the heat exchanger 4 from falling during maintenance. By making the drain pan 12 removable from the opening 10, the heat exchanger 4, the air supply blower 2, and the exhaust blower 3 can be taken out from the inside of the housing 1 through the opening 10.

FIG. 6 is a perspective view showing a first example of the heat exchanger 4 included in the heat exchange ventilator 100 shown in FIG. 1. The heat exchanger 4 according to the first example has a quadrangular prism shape. The heat exchanger 4 according to the first example is an orthogonal type heat exchanger in which the direction of the supply airflow 17 and the direction of the exhaust flow 18 are perpendicular to each other.

The heat exchanger 4 is provided between the supply air passage 15 and the exhaust air passage 16. The heat exchanger 4 exchanges total heat between the supply airflow 17 and the exhaust flow 18. The heat exchanger 4 includes a plurality of partitioning members 30 arranged so as to be spaced apart from each other, and a spacing member 31 for maintaining the spacing between the plurality of partitioning members 30. The heat exchanger 4 is a laminated body formed by laminating a partition material 30 and an interval holding material 31. The partition material 30 is a flatly processed sheet material. The space holding material 31 is a sheet material having corrugated irregularities. The partition member 30 and the spacing member 31 are joined to each other.

The heat exchanger 4 is arranged so that the stacking direction, which is the direction in which the partition member 30 and the spacing member 31 are laminated, is parallel to the plate portion 1e and the plate portion 1f. The heat exchanger 4 may be arranged so that the stacking direction is parallel to the plate portion 1c and the plate portion 1d.

In the laminated body, the spacing members 31 having different directions so that the directions of the corrugated folds are perpendicular to each other are alternately laminated via the partition member 30. As a result, the heat exchanger 4 is provided with the primary passage 32 through which the exhaust flow 18 passes and the secondary passage 33 through which the supply air flow 17 passes alternately in the stacking direction. In the partition material 30, sensible heat exchange and latent heat exchange between the exhaust flow 18 passing through the primary passage 32 and the supply air flow 17 passing through the secondary passage 33 without mixing the supply airflow 17 and the exhaust flow 18 are performed. Is done. The heat exchanger 4 may perform only one of sensible heat exchange and latent heat exchange.

Paper is used for the partition member 30 and the spacing member 31. The heat exchanger 4 can reduce the manufacturing cost by using paper for the partition material 30 and the space holding material 31. Since the primary passage 32 and the secondary passage 33 are composed of paper, the dew condensation water generated by the heat exchange can be held by the primary passage 32 and the secondary passage 33. In addition, it is possible to reduce the blockage of the air passage due to the freezing of the condensed water that has entered the air passage.

FIG. 7 is a perspective view showing a second example of the heat exchanger 4 included in the heat exchange ventilator 100 shown in FIG. 1. The heat exchanger 4 according to the second example has a hexagonal column shape. The heat exchanger 4 according to the second example is a countercurrent type heat exchanger in which the direction of the supply airflow 17 and the direction of the exhaust flow 18 are different by 180 degrees. Either the heat exchanger 4 according to the first example or the heat exchanger 4 according to the second example may be applied to the heat exchange ventilator 100. The shape of the heat exchanger 4 may be any shape as long as it is a polygonal prism shape, and may be a shape other than the hexagonal prism shape and the quadrangular prism shape. Note that FIG. 1 shows the heat exchanger 4 according to the second example. By providing the countercurrent type heat exchanger 4, the heat exchange ventilator 100 can perform heat conversion with high heat exchange efficiency.

Next, the configuration for discharging the drain water in the heat exchange ventilation device 100 will be described. FIG. 8 is a cross-sectional view of the heat exchange ventilator 100 in line VIII-VIII shown in FIG. FIG. 8 shows a heat exchange ventilation device 100 installed in a horizontal installation. When the housing 1 is in the first posture, the plate portion 1b shown in FIG. 2 is directed downward. The drain pan 35 which is the second drain receiver, the drain pan 36 which is the third drain receiver, and the drain pan 37 which is the fourth drain receiver are provided on the inner surface of the housing 1 in the plate portion 1b, and the housing is provided. It is housed in body 1.

The drain pan 35 has the lower side of the upstream air passage 15a of the supply air passage 15 and the downstream air passage 16b of the exhaust air passage 16 when the housing 1 is in the first posture and the housing 1 is the second. It is arranged on the lower side when it is in the posture of. The drain pan 35 holds drain water in the upstream air passage 15a and the downstream air passage 16b.

The drain pan 36 is arranged on the lower side of the upstream air passage 16a of the exhaust air passage 16 and the downstream air passage 15b of the air supply air passage 15 when the housing 1 is in the first posture. The drain pan 36 holds drain water in the upstream air passage 16a and the downstream air passage 15b.

The drain pan 37 is arranged on the lower side of the bypass air passage 21 when the housing 1 is in the first posture. The drain pan 37 holds the drain water in the bypass air passage 21. The heat exchange ventilator 100 makes it possible to hold drain water by four drain pans 12, 35, 36, 37. The four drain pans 12, 35, 36, and 37 are connected to each other so that a path for draining the drain water to the outside of the housing 1 can be configured.

The first drainage port 25 is located at the lower part of the housing 1 when the housing 1 is in the first posture. The first drainage port 25 allows the drain water held in the housing 1 to flow out of the housing 1. The first drainage port 25 is erected from the end portion 12a of the drain pan 12 on the air supply filter 13 side in a direction perpendicular to the longitudinal direction of the housing 1. The first drainage port 25 is erected perpendicular to the plate portion 1e. If the first drainage port 25 is oriented parallel to the longitudinal direction of the housing 1, the first drainage port 25 may interfere with the attachment / detachment of the air supply filter 13 or the exhaust filter 14. Since the first drainage port 25 is perpendicular to the longitudinal direction of the housing 1, the first drainage port 25 can be arranged in a manner that does not interfere with the attachment / detachment of the air supply filter 13 or the exhaust filter 14.

When the housing 1 is in the first posture, the height position of the first drainage port 25 is the same as the height position of the plate portion 1b. Since the first drainage port 25 is provided at the lowest possible position when the housing 1 is in the first posture, the heat exchange ventilation device 100 can promote drainage from the first drainage port 25. can.

At the boundary between the drain pan 36 and the drain pan 37, a drainage path portion 38a constituting a drainage path is provided. The drainage path portion 38a is a portion that connects the drain pan 36 and the drain pan 37 and is formed so that the drain pan 36 is at a higher position than the drain pan 37 when the housing 1 is in the first posture. The drain water stored in the drain pan 36 flows to the drain pan 37 through the drainage channel portion 38a.

A drainage path portion 38c constituting a drainage path is provided at a boundary between the drain pan 37 and the end portion 12a of the drain pan 12. The drainage path portion 38c is a portion that connects the drain pan 37 and the end portion 12a and is formed so that the drain pan 37 is at a higher position than the end portion 12a when the housing 1 is in the first posture. .. The drain water stored in the drain pan 37 flows to the end portion 12a through the drainage path portion 38c. The drain water flowing to the end portion 12a is discharged to the outside of the housing 1 from the first drain port 25.

A drainage path portion 38b constituting a drainage path is provided at a boundary between the drain pan 35 and the end portion 12a of the drain pan 12. The drainage path portion 38b is provided between the air supply filter 13 and the plate portion 1e. The drainage path portion 38b is a portion that connects the drain pan 35 and the end portion 12a and is formed so that the drain pan 35 is at a higher position than the end portion 12a when the housing 1 is in the first posture. .. The drain water stored in the drain pan 35 flows to the end portion 12a through the drainage path portion 38b. The drain water flowing to the end portion 12a is discharged to the outside of the housing 1 from the first drain port 25.

The drain pan 35 is formed with a partition portion 39 that partitions the upstream air passage 15a and the downstream air passage 16b. Since the partition portion 39 is provided, the water condensed in the downstream air passage 16b proceeds to the drainage route portion 38b without being mixed with the water condensed in the upstream air passage 15a. When the outdoor air is humid, it is assumed that the outdoor air is temporarily humid due to fog or the like. The heat exchange ventilation device 100 may hold the water condensed in the upstream air passage 15a in the drain pan 35 and evaporate the water by the ventilation operation.

FIG. 9 is a diagram showing a state in which the heat exchange ventilation device 100 shown in FIG. 8 is arranged vertically. FIG. 9 shows the same cross section as that shown in FIG. When the housing 1 is in the second posture, the plate portion 1c is directed downward. The second drainage port 26 is located at the lower part of the housing 1 when the housing 1 is in the second posture. The second drainage port 26 allows the drain water held in the housing 1 to flow out of the housing 1. The second drainage port 26 is provided next to the drain pan 35 in the plate portion 1c. The second drainage port 26 is erected perpendicularly to the plate portion 1c. The direction in which the first drainage port 25 is erected from the housing 1 and the direction in which the second drainage port 26 is erected from the housing 1 are perpendicular to each other.

Since the housing 1 is in the second posture, the drain water generated in the housing 1 moves downward. The drain water flows downward along the wall portion constituting each air passage or each drain pan 12, 35, 36, 37, or falls downward away from the wall portion and each drain pan 12, 35, 36, 37. The drain water that has reached the plate portion 1c is discharged to the outside of the housing 1 from the second drain port 26. The housing 1 may be provided with a configuration for preventing leakage of drain water in the plate portion 1c, or may be provided with a drain pan. A configuration for blocking drain water may be provided at the inner end of the housing 1 of the supply air suction port 5 and the exhaust air outlet 8. As a result, the drain water that has reached the plate portion 1c can be drained from the second drain port 26 without leakage.

Next, the first, second, and third mounting brackets of the heat exchange ventilator 100 will be described. FIG. 10 is a perspective view showing a first mounting bracket 50 included in the heat exchange ventilator 100 shown in FIG. 1. FIG. 11 is an enlarged view showing a portion of the first mounting bracket 50 shown in FIG. 10 on the side of the plate portion 1e, which is the fifth plate portion. FIG. 12 is an enlarged view showing a portion of the first mounting bracket 50 shown in FIG. 10 on the side of the plate portion 1f, which is the sixth plate portion. FIG. 13 is a perspective view showing a second mounting bracket 54 and a third mounting bracket 55 included in the heat exchange ventilator 100 shown in FIG. 1. The first mounting bracket 50 is mounted on one end of the housing 1 in the longitudinal direction. The second mounting bracket 54 and the third mounting bracket 55 are mounted on the other end of the housing 1 in the longitudinal direction. The second mounting bracket 54 and the third mounting bracket 55 are mounted on the side of the plate portion 1c with respect to the first mounting bracket 50.

As shown in FIG. 10, the portion 50a of the first mounting bracket 50 is in contact with the end of the plate portion 1a on the plate portion 1d side. The first mounting bracket 50 has two portions 50b, 50d that are vertically bent from the portion 50a. The portion 50b is in contact with the plate portion 1e. The portion 50d is in contact with the plate portion 1f. The first mounting bracket 50 is fixed to the housing 1 by screwing the portion 50b and the portion 50d to the housing 1.

As shown in FIG. 11, the portion 50b has a fixing portion 51a erected perpendicular to the plate portion 1e. The fixing portion 51a has a recess 51b and exhibits a U shape, and the tip portion is bent. As shown in FIG. 12, the portion 50d has a fixing portion 52a erected perpendicular to the plate portion 1f. The fixing portion 52a has a recess 52b and is formed in the same manner as the fixing portion 51a. The fixing portions 51a and 52a, which are the first fixing portions, are used when the posture of the housing 1 is the first posture and the heat exchange ventilation device 100 is installed by suspending from the ceiling.

A crossing portion 50c is formed at the upper end of the portion 50a when the posture of the housing 1 is the second posture. The crossing portion 50c is used when the posture of the housing 1 is set to the second posture and the heat exchange ventilation device 100 is installed by hanging on the wall.

The hanging bracket 53 shown in FIG. 10 is a component that is attached to a wall that is a structure facing the plate portion 1a when the posture of the housing 1 is the second posture. The crossing portion 50c is a portion of the first mounting bracket 50 that protrudes from the portion 50a so as to be crossable with the hooking bracket 53. The crossing portion 50c is bent so as to extend upward once from the same height position as the plate portion 1d and then downward in a state where the housing 1 is in the second posture. Of the crossed portions 50c, the end portion below the crease directed upward is inclined with respect to the plate portion 1a.

The hanging metal fitting 53 is provided with a protruding portion 53a that is bent upward from the lower end of the hanging metal fitting 53 and protrudes. The crossed portion 50c of the hanging metal fitting 53 is in contact with the protruding portion 53a. Two holes 53b are provided at the lower end of the hanging metal fitting 53. The crossing portion 50c is provided with two convex portions 50e. The convex portion 50e has a tapered shape in which the width becomes narrower toward the tip of the convex portion 50e. The crossing portion 50c is crossed with the hanging metal fitting 53 by inserting each of the two convex portions 50e into the hole 53b.

As shown in FIG. 13, the second mounting bracket 54 is in contact with the end of the plate portion 1e on the plate portion 1c side. The second mounting bracket 54 is fixed to the housing 1 by being screwed to the plate portion 1e. The second mounting bracket 54 has a fixing portion 54a that is erected perpendicularly to the plate portion 1e. The fixing portion 54a has a recess 54b and exhibits a U shape, and the tip portion is bent.

The third mounting bracket 55 is in contact with the end of the plate portion 1f on the plate portion 1c side. The third mounting bracket 55 is fixed to the housing 1 by being screwed to the plate portion 1f. The third mounting bracket 55 has a fixing portion 55a that is erected perpendicularly to the plate portion 1f. The fixing portion 55a has a recess 55b and exhibits a U shape, and the tip portion is bent. The fixing portions 54a and 55a, which are the second fixing portions, are used when the posture of the housing 1 is the first posture and the heat exchange ventilation device 100 is installed by suspending from the ceiling.

The first mounting bracket 50, the second mounting bracket 54, and the third mounting bracket 55 can be formed by cutting and bending the sheet metal. The heat exchange ventilator 100 can be installed horizontally using the first mounting bracket 50, the second mounting bracket 54, and the third mounting bracket 55, and can be vertically installed using the first mounting bracket 50. Has been done. As the heat exchange ventilator 100, the first mounting bracket 50, which is a common mounting bracket for horizontal installation and vertical installation, can be used. The heat exchange ventilator 100 can reduce the number of parts as compared with the case where different mounting brackets are required for horizontal installation and vertical installation. Therefore, the heat exchange ventilation device 100 can be installed with a high degree of freedom while reducing the number of parts.

FIG. 14 is a front view showing a state in which the heat exchange ventilation device 100 shown in FIG. 1 is installed by suspending from the ceiling. The heat exchange ventilation device 100 is suspended from a building material 60 located above the ceiling. The plate portion 1a faces the building material 60. The building material 60 is provided with four bolts 57, which are shredded bolts. The bolt 57 is a component in which the upper end portion of the bolt 57 is embedded in the building material 60 and suspended from the building material 60. The axial direction of the bolt 57 coincides with the vertical direction.

Two of the four bolts 57 are provided at positions facing the plate portion 1e. The other two of the four bolts 57 are provided at positions facing the plate portion 1f. FIG. 14 shows two bolts 57 facing the plate portion 1e among the four bolts 57.

The fixing portion 51a of the first mounting bracket 50 protrudes so as to be able to be fixed to the bolt 57 on the side of the plate portion 1d among the two bolts 57 facing the plate portion 1e. The nut 56 is screwed from below the bolt 57 passed through the recess 51b and fastened to the fixing portion 51a. The fixing portion 51a is fixed to the bolt 57 by tightening the nut 56.

The fixing portion 52a shown in FIG. 12 protrudes so as to be able to be fixed to the bolt 57 on the side of the plate portion 1d among the two bolts 57 facing the plate portion 1f. The fixing portion 52a is fixed to the bolt 57 by tightening the nut 56 in the same manner as the fixing portion 51a.

The fixing portion 54a of the second mounting bracket 54 protrudes so as to be able to be fixed to the bolt 57 on the side of the plate portion 1c among the two bolts 57 facing the plate portion 1e. The nut 56 is screwed from below the bolt 57 passed through the recess 54b and fastened to the fixing portion 54a. The fixing portion 54a is fixed to the bolt 57 by tightening the nut 56.

The fixing portion 55a of the third mounting bracket 55 shown in FIG. 13 protrudes so as to be able to be fixed to the bolt 57 on the side of the plate portion 1c among the two bolts 57 facing the plate portion 1e. The nut 56 is screwed from below the bolt 57 passed through the recess 55b and fastened to the fixing portion 55a. The fixing portion 55a is fixed to the bolt 57 by tightening the nut 56.

In this way, the heat exchange ventilator 100 is suspended from the building material 60 by fixing each of the four fixing portions 51a, 52a, 54a, 55a to the bolt 57. The inclination of the housing 1 with respect to the building material 60 is adjusted by changing the degree of tightening of the nuts 56 in the fixing portions 51a, 52a, 54a, 55a.

The heat exchange ventilation device 100 promotes the discharge of drain water from the first drain port 25 by inclining the housing 1 so as to move downward from the side of the plate portion 1f toward the side of the plate portion 1e. Can be done. Since the heat exchange ventilation device 100 can adjust the inclination of the housing 1 by tightening the nut 56, it is possible to easily realize the installation that can promote the drainage of drain water.

FIG. 15 is a side view showing a state in which the heat exchange ventilation device 100 shown in FIG. 1 is installed by hanging on a wall. The hanging metal fitting 53 is fixed to the wall surface 61. The heat exchange ventilation device 100 is installed so as to be hung on the wall surface 61 by engaging the hooking portion 50c with the hanging metal fitting 53. The plate portion 1a faces the wall surface 61.

By bringing the engaging portion 50c of the first mounting bracket 50 into contact with the protruding portion 53a of the hanging bracket 53 from above, the engaging portion 50c is engaged with the hanging bracket 53. Since the crossing portion 50c is inclined, the crossing portion 50c is crossed with the hanging metal fitting 53, so that the housing 1 is tilted so that the side of the plate portion 1b is lowered. The heat exchange ventilation device 100 can be installed at a desired inclination without finely adjusting the inclination using a level or the like. Further, it is possible to prevent a situation in which it is forgotten to incline the heat exchange ventilation device 100 when the heat exchange ventilation device 100 is installed.

The heat exchange ventilation device 100 promotes the discharge of drain water from the second drain port 26 by inclining the housing 1 so as to move downward from the side of the plate portion 1a toward the side of the plate portion 1b. Can be done. Since the heat exchange ventilation device 100 can have the housing 1 tilted by the bent shape of the crossing portion 50c, it is possible to easily realize the installation capable of promoting the discharge of drain water.

Since the convex portion 50e has a tapered shape, the convex portion 50e that has reached the hole 53b of the hanging metal fitting 53 can be easily inserted into the hole 53b. By inserting each of the two convex portions 50e into the hole 53b, the first mounting bracket 50 is correctly engaged with the hanging bracket 53, and the heat exchange ventilator 100 is positioned. When the heat exchange ventilator 100 lifted from below is installed on the wall surface 61, even if the hanging metal fitting 53 and the mating portion 50c cannot be visually recognized, the heat exchange ventilator 100 can be inserted into the hole 53b by inserting the convex portion 50e. Can be easily positioned.

According to the first embodiment, the heat exchange ventilator 100 includes a first mounting bracket 50, a second mounting bracket 54, and a third mounting bracket 55, so that the heat exchange ventilator 100 has a first posture and a second posture. Both of the housings 1 can be easily provided with an inclination that can promote the drainage of drain water. As a result, the heat exchange ventilation device 100 has the effect that it can be easily installed so that the drain water can be discharged regardless of whether the horizontal installation or the vertical installation is selected.

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 Housing, 1a, 1b, 1c, 1d, 1e, 1f Plate, 2 Air supply blower, 3 Exhaust blower, 4 Heat exchanger, 5 Air supply inlet, 6 Air supply outlet, 7 Exhaust inlet, 8 Exhaust air outlet, 9 control device, 10 openings, 11 inspection port, 12, 35, 36, 37 drain pan, 12a end, 13 air supply filter, 14 exhaust filter, 15 air supply air passage, 15a, 16a upstream air passage, 15b, 16b Downstream air passage, 16 exhaust air passage, 17 air supply airflow, 18 exhaust flow, 19 bypass airflow, 20 damper, 21 bypass air passage, 22 heat exchange side opening, 23 bypass side opening, 24 holding plate, 25 1st drain, 26 2nd drain, 27 Insulation parts, 30 dividers, 31 spacing members, 32 primary passages, 33 secondary passages, 38a, 38b, 38c drain passages, 39 dividers, 50 First mounting bracket, 50a, 50b, 50d part, 50c crossing portion, 50e convex portion, 51a, 52a, 54a, 55a fixing portion, 51b, 52b, 54b, 55b concave portion, 53 hanging bracket, 53a protruding portion, 53b Hole, 54 2nd mounting bracket, 55 3rd mounting bracket, 56 nuts, 57 bolts, 60 building materials, 61 wall surface, 100 heat exchange ventilator.

Claims (3)

A heat exchange ventilator that exchanges heat between the supply air flow and the exhaust flow.
A first plate portion provided with an air supply inlet and an exhaust outlet, a second plate portion facing the first plate portion, and the air supply airflow from the air supply inlet to the air supply outlet. The third plate portion and the fourth plate portion, which constitute the air supply air passage which is the path of the above and the exhaust air passage which is the path of the exhaust flow from the exhaust suction port to the exhaust outlet, and the third plate portion and the fourth plate portion which face each other, and the first plate portion . A housing having a fifth plate portion and a sixth plate portion that are perpendicular to the plate portion 1 and the third plate portion and face each other.
When the posture of the housing is the first posture in which the third plate portion is directed upward, the third plate portion is fixably projected from the structure facing the third plate portion to the suspended parts. The fixed portion of 1 and the component attached to the structure facing the third plate portion when the posture of the housing is the second posture with the second plate portion facing upward are crossed. A first mounting bracket with a hangout that is possible to project, and
It is mounted on the side of the first plate portion with respect to the first mounting bracket, and is suspended from a structure facing the third plate portion when the posture of the housing is the first posture. A second mounting bracket and a third mounting bracket having a second fixing portion that protrudes so as to be fixed to a component.
A first drainage port that stands perpendicular to the fifth plate portion and discharges drain water to the outside of the housing when the posture of the housing is the first posture.
A second drainage port that stands perpendicular to the first plate portion and discharges drain water to the outside of the housing when the posture of the housing is the second posture.
Equipped with
The crossing portion is bent so as to extend upward from the height of the second plate portion and then downward in a state where the housing is in the second posture, and the third plate portion is bent. heat exchange ventilator according to claim Rukoto against the plate portion has no inclination. Before SL first mounting member has two first fixing portion and erected perpendicularly to one said fifth plate portion of the two said first fixing portion, and The other of the two first fixing portions is erected perpendicular to the sixth plate portion.
The second mounting bracket has the second fixing portion that is erected perpendicular to the fifth plate portion.
The heat exchange ventilation device according to claim 1, wherein the third mounting bracket has the second fixing portion that is erected perpendicularly to the sixth plate portion. The crossing portion is provided with a convex portion to be inserted into a hole provided in the component attached to a structure facing the third plate portion.
The heat exchange ventilation device according to claim 1 or 2 , wherein the convex portion has a tapered shape in which the width becomes narrower toward the tip of the convex portion.

Images