JP6982724B2 - Heat exchange type ventilator - Google Patents

Description

The present invention relates to a heat exchange type ventilator that exchanges heat between outside air and indoor air.

Conventionally, as a ventilation device of this type, a ventilation device installed in a building, introducing outside air from an outside air supply port, and supplying the outside air to the room via a built-in heat exchange element is known (see, for example, Patent Document 1). ).

Hereinafter, the ventilation device will be described with reference to FIG. 9.

As shown in FIG. 9, the ventilation device main body 101 is installed in the attic space or the ceiling space in the building. The fresh outside air is introduced from the outside air supply port 102, passes through the built-in heat exchange element 103, and is supplied to the room via the indoor air supply port 104. On the other hand, the dirty air in the room is introduced from the indoor exhaust port 105, passes through the heat exchange element 103, and is exhausted to the outside through the outdoor exhaust port 106. The fresh outside air introduced from the outside air supply port 102 and the dirty air in the room introduced from the indoor exhaust port 105 are connected to the electric motor 107 via the heat exchange element 103 with the air supply fan 109 connected by the same shaft 108. It is configured to be transferred by the exhaust fan 110.

Japanese Unexamined Patent Publication No. 2013-194931

Since such a conventional heat exchange type ventilation device for home use is installed behind the ceiling, it may be necessary to use a stepladder when constructing duct piping or electrical equipment. In addition, since the work is performed in a narrow space, there is a problem that the construction may be difficult.

An object of the present invention is to provide a heat exchange type ventilation device with improved workability in order to solve the above problems.

In order to achieve this object, the heat exchange type ventilator according to one aspect of the present invention is a heat exchange type ventilator including a main body case, a fan unit, and a heat exchange element. The main body case has an indoor suction port that sucks in indoor air, an exhaust port that discharges the sucked indoor air to the outside, an outside air suction port that sucks in outside air, and an air supply port that supplies the sucked outside air into the room. The fan unit includes an air supply fan and an exhaust fan, and the exhaust port, the outside air suction port, the indoor suction port, and the air supply port are provided on the first side surface of the main body case. The main body case has a second side surface facing the first side surface, and an air supply path is formed in which outdoor air is blown from the outside air suction port to the air supply port by the air supply fan. An exhaust path is formed in which indoor air is blown from the indoor suction port to the exhaust port by an exhaust fan, and the heat exchange element is located at a position where the air supply path and the exhaust path intersect in the main body case. The main body case is installed on the floor with the first side surface facing up and the second side surface facing down, and the air supply fan and the exhaust fan are heat exchanged in the main body case. It is a heat exchange type ventilator provided at the bottom of the element.

According to the present invention, workability at the time of product installation can be improved.

A perspective view showing the configuration of the heat exchange type ventilator according to the first embodiment of the present invention. Side sectional view showing the configuration of the same heat exchange type ventilator Side sectional view showing the configuration of the same heat exchange type ventilator A perspective view showing the configuration of a humidifying unit of the same heat exchange type ventilator. Sectional drawing which shows the structure of the humidifying part of the same heat exchange type ventilator The figure which shows the structure of the heating part of Embodiment 3 of this invention. A perspective view showing the structure of the drain pan according to the fourth embodiment of the present invention. Side view showing the configuration of the same heat exchange type ventilator Top view showing the configuration of the same heat exchange type ventilator A perspective view showing a branch chamber box according to the fifth embodiment of the present invention. A perspective view showing the configuration of the same heat exchange type ventilator. Side view showing the configuration of the same heat exchange type ventilator Sectional drawing which shows the structure of the conventional heat exchange type ventilation system

The heat exchange type ventilation device according to one aspect of the present invention is a heat exchange type ventilation device including a main body case, a fan unit, and a heat exchange element, and the main body case sucks indoor air into the room. The fan unit has a mouth, an exhaust port for discharging the sucked indoor air to the outside, an outside air suction port for sucking the outside air, and an air supply port for supplying the sucked outside air into the room. The exhaust port, the outside air suction port, the indoor suction port, and the air supply port are provided on the first side surface of the main body case, and the main body case is the first side surface. The air supply fan forms a supply path for blowing outdoor air from the outside air suction port to the air supply port, and the exhaust fan forms the exhaust from the indoor suction port. An exhaust path for blowing indoor air to the mouth is formed, and the heat exchange element is provided at a position where the air supply path and the exhaust path intersect in the main body case, and the main body case is the main body case. It has a configuration in which the first side surface is on the top and the second side surface is on the bottom.

As a result, the exhaust port, the outside air suction port, the indoor suction port, and the air supply port are centrally provided on one surface of the main body case, so that the duct can be easily connected and the workability at the time of product installation is improved. Can be improved.

Further, the humidifying unit is provided to be connected to the air supply port, and the humidifying unit has an inlet, an outlet, and a humidifying portion, and the inlet communicates with the air supply port to form the air inlet. The humidifying section humidifies the air sucked from the inlet, the outlet supplies the air humidified by the humidifying section into the room, and the humidifying unit is removable from the main body case. It may be configured.

As a result, humidified air can be supplied to the room from the air supply port, so that the comfort of the room can be improved. In addition, by making the humidifying unit removable, the presence or absence of the humidifying unit can be selected as needed.

Further, the humidifying unit includes a heating unit on the upstream side of the humidifying unit, the heating unit heats the air sucked from the inflow port, and the humidifying unit heats the air heated by the heating unit. It may be configured to be humidified.

As a result, the air to be humidified is preheated by the heating unit, so that the room can be humidified more efficiently.

Further, the main body case may be installed on the side wall or the floor.

This facilitates access to the main body case and has the effect of improving maintainability.

Further, a drain pan for receiving drainage from the humidifying unit may be provided below the main body case.

As a result, it is possible to prevent the drainage from the humidifying unit from flowing out to the outside.

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

(Embodiment 1)
As shown in FIG. 1, the heat exchange type ventilator 1 includes a main body case 2.

The main body case 2 includes an indoor suction port 3, an exhaust port 4, an outside air suction port 5, an air supply port 6, a heat exchange element 7, a first side surface 8, a second side surface 9, and a control unit 18. , And a control panel 19.

The indoor air is sucked in from the indoor suction port 3 and discharged to the outside, for example, outdoors from the exhaust port 4.

The outside air is sucked from the outside air suction port 5 and supplied to the room from the air supply port 6.

The indoor suction port 3, the exhaust port 4, the outside air suction port 5, and the air supply port 6 are provided on the first side surface 8 of the main body case 2. That is, the outside air is sucked in and the room air is sucked in from the same direction, and the outside air is blown out and the room air is blown out in the same direction.

The second side surface 9 is a surface facing the first side surface 8.

The control unit 18 that receives the instruction from the control panel 19 controls the operation of the air supply fan 10, the exhaust fan 11, and the like.

As shown in FIG. 2, the main body case 2 includes a fan unit 12. Further, the fan unit 12 has an air supply fan 10 and an exhaust fan 11.

The air supply fan 10 and the exhaust fan 11 are provided below the heat exchange element 7 in the main body case 2. That is, the air supply fan 10 and the exhaust fan 11 are provided on the second side surface 9 side of the heat exchange element 7.

The air supply fan 10 forms an air supply path 13 in which outdoor air is blown from the outside air suction port 5 to the air supply port 6. Further, the exhaust fan 11 forms an exhaust path 14 in which indoor air is blown from the indoor suction port 3 to the exhaust port 4.

The heat exchange element 7 is provided at a position in the main body case 2 where the air supply path 13 and the exhaust path 14 intersect. The heat exchange element 7 exchanges heat between the air supplied to the room and the air discharged to the outside.

The main body case 2 is installed with the first side surface 8 facing up (top surface) and the second side surface 9 facing down (bottom surface). That is, the indoor suction port 3, the exhaust port 4, the outside air suction port 5, and the air supply port 6 are provided on the upper surface of the main body case 2. Therefore, air is sucked from the upper part of the main body case 2 and air is blown out from the upper part of the main body case 2.

With such a configuration, workability at the time of product installation can be improved.

The main body case 2 may be installed on a side wall or a floor in a house or the like. This improves maintainability.

Further, as shown in FIG. 3, the air supply fan 10 and the exhaust fan 11 may be provided on the upper part of the heat exchange element 7. That is, the air supply fan 10 and the exhaust fan 11 may be provided on the first side surface 8 side of the heat exchange element 7.

Further, the humidifying unit 15 connected to the air supply port 6 may be provided.

Hereinafter, the humidifying unit 15 will be described in detail with reference to FIGS. 4 and 5.

The humidifying unit 15 has an inlet 16, an outlet 17, and a humidifying section 30.

The inflow port 16 is provided, for example, on the side of the humidifying portion case 37 and communicates with the air supply port 6.

The outlet 17 is provided, for example, on the upper part of the humidifying section case 37, and supplies the air humidified by the humidifying section 30 into the room.

The humidifying portion 30 has a blow-up air passage 34, a bottom portion 35, a humidifying portion drain port 36, and a humidifying portion case 37.

The humidifying portion case 37 has, for example, a cylindrical shape.

The humidifying section 30 humidifies the air sucked from the inflow port 16.

Further, the humidifying section 30 may include a centrifugal crushing section 60. At this time, the humidifying portion case 37 contains the centrifugal crushing portion 60 partitioned by the inner wall 32.

The centrifugal crushing unit 60 includes, for example, a pumping pipe 61, a centrifugal crushing disk 62, and a crushing motor 63.

The pumping pipe 61 rotates based on the operation of the crushing motor 63, and winds up the water stored in the bottom 35.

The centrifugal crushing disk 62 crushes the water wound up by the pumping pipe 61. The water droplets crushed by the centrifugal crushing disk 62 humidify the air passing through the centrifugal crushing portion 60.

The blowing air passage 34 is a region partitioned by the inner wall 32 and the side surface of the humidifying portion case 37, and the air humidified by the centrifugal crushing portion 60 passes through the region. The air passing through the blow-up air passage 34 is blown out from the centrifugal crushing portion 60 toward the bottom 35 and then blown toward the outlet 17.

The bottom portion 35 has a function as a water storage unit in which water for humidification is stored. In the humidifying portion case 37, the bottom portion 35 is provided below the centrifugal crushing portion 60.

The humidifying section drain port 36 is provided at the bottom 35 and communicates with the humidifying section drainage channel 38 (see FIG. 8). After the operation of the humidifying unit 15 is completed, the water accumulated in the bottom portion 35 is drained from the humidifying section drain port 36 as drainage 44 from the humidifying section. The drainage 44 from the humidifying section is drained from the humidifying section drain port 36 to the outside through the humidifying section drainage channel 38.

Here, the flow of air in the humidifying unit 15 will be described.

First, the air blown out from the air supply port 6 of the main body case 2 flows into the humidifying portion case 37 from the inflow port 16. The air sucked from the inflow port 16 is humidified by the centrifugal crushing unit 60. The air humidified by the centrifugal crushing unit 60 is blown toward the bottom portion 35 and then supplied into the room from the outlet 17 through the blowing air passage 34.

With this configuration, the outside air supplied to the room from the outlet 17 can be humidified to humidify the room. Further, since the water generated in the humidifying portion 30 falls to the bottom portion 35 due to gravity, it is possible to obtain the effect that the water flows back to the heat exchange type ventilator 1 and the heat exchange element 7 is less likely to be exposed to water.

As a humidifying method by the humidifying unit 30, a method of centrifugally crushing water to humidify has been described, but the humidifying method is not limited to this.

Further, the humidifying section drain port 36 may be provided with, for example, a solenoid valve (not shown) controlled by the control section 18 to switch between water storage and drainage. That is, when the humidifying unit 15 is operated, the solenoid valve may be closed to store water, and when the water accumulated in the bottom portion 35 is drained, the solenoid valve may be opened to drain water from the humidifying section drain port 36. As a result, when the water storage at the bottom 35 is no longer necessary, the water can be quickly drained.

Further, the humidifying unit 15 may be attached to and detached from the main body case 2. This makes it possible to select the presence or absence of a humidifying unit as needed. Therefore, when the humidifying unit is not provided, the space can be saved as compared with the case where the humidifying unit and the main body case are integrated (non-detachable).

The humidifying unit 15 may be attached to the upper portion or the side portion of the main body case 2.

(Embodiment 2)
As shown in FIG. 5, the outlet 17 of the humidifying unit may be configured to be provided on the upper side surface of the humidifying portion case 37. That is, it may be configured to blow out the blown air from the humidifying unit 15 in the lateral direction. According to this configuration, in a narrow space where the heat exchange type ventilation device 1 is installed, the blowing direction of the air supply duct can be selected in either the upward direction or the lateral direction, and the workability can be further improved.

(Embodiment 3)
Further, the humidifying unit 15 may be provided with a heating unit 40 on the upstream side of the humidifying unit 30. The heating unit 40 heats the air sucked from the inflow port 16, and the humidifying unit 30 downstream of the heating unit 40 humidifies the air heated by the heating unit 40.

By providing the humidifying unit 15 with the heating unit 40 on the upstream side and the humidifying unit 30 on the downstream side, the air to be humidified can be preheated and the room can be efficiently humidified.

Here, the heating unit 40 will be described with reference to FIG.

As shown in FIG. 6, the heating unit 40 includes a heating member 41 and an inclined member 42.

As the heating member 41, for example, a radiator or a heater may be used. When a radiator is used, the radiator may be connected to, for example, a hot water pipe (hot water supply pipe) for floor heating, and hot water may be passed through the radiator pipe to heat the air passing through the heating unit 40. This makes it possible to heat the air by effectively using the existing heat source.

Further, the structure may be such that cold water flows into the pipe of the radiator. As a result, the radiator can be dewed with the air passing through the heating unit 40, and the air supplied to the room can be dehumidified. That is, the humidifying unit 15 can be provided with a function as a dehumidifier.

The dew condensation water 43 shown in FIG. 5 is dew condensation water generated when cold water is flowed into the radiator pipe.

The inclined member 42 is provided on the downstream side of the inflow port 16 and on the upstream side of the heating member 41. Further, the inclined member 42 is inclined downward from the inflow port 16 toward the humidifying portion 30 side. That is, the inlet 16 side is high and the humidifying portion 30 side is low. At this time, the dew condensation water 43 generated by the heating member 41 is guided toward the humidifying portion 30, particularly the bottom portion 35 by the inclined member 42, so that it flows back to the heat exchange type ventilator 1 and the water is applied to the heat exchange element 7. The effect of being difficult can be obtained.

The shape of the inclined member 42 is not limited to that shown in FIGS. 5 and 6, and can be appropriately set to a shape necessary for suppressing backflow to the heat exchange type ventilator 1.

(Embodiment 4)
A drain pan 70 may be provided as a drainage device below the main body case 2.

Here, the drain pan 70 will be described with reference to FIGS. 7 to 9.

As shown in FIG. 7, the drain pan 70 is made of resin, for example, and is a flat dish-shaped container arranged under the main body case 2, from the dew condensation water 45 from the heat exchange element and the humidifying part drainage channel 38. Receives drainage 44 etc. from the humidifying part that comes out.

The drain pan 70 includes a drainage portion 71, a holding portion 72, an inclined portion 73, a peripheral wall 74, and a bottom wall 75.

The bottom wall 75 is provided at a position facing the lower surface (second side surface 9) of the main body case 2.

The peripheral wall 74 is a side wall surrounding the bottom wall 75.

The holding portion 72 is provided so as to project from the bottom wall 75 and supports the main body case 2. That is, the drain pan 70 is connected to the second side surface 9 by the holding portion 72. That is, the drain pan 70 plays a role of supporting the main body case 2 and a role of a drainage device.

As the drainage section 71, for example, a drainage port is provided in the center of the drain pan 70, and the dew condensation water 45 from the heat exchange element, the drainage 44 from the humidifying section, and the dew condensation water from the exterior generated on the outer wall surface (exterior) of the main body case 2. 46 is drained from the drain.

A part of the bottom wall 75 forms an inclined portion 73. The inclined portion 73 plays a role of guiding the drainage toward the drainage portion 71 in the drain pan 70.

According to such a configuration, the drain pan 70 receives the dew condensation water 43 from the heat exchange element 7, the dew condensation water 46 from the exterior generated on the outer wall surface (exterior) of the main body case 2, and the drainage from the humidifying unit 15. Can be done. That is, it is possible to suppress the outflow of water generated by the heat exchange type ventilation device 1 or the humidifying unit 15 provided above the drain pan 70 to the outside.

The shape of the drain pan 70 is not limited to that shown in the drawings, and can be appropriately set. Further, the positions of the indoor suction port 3, the exhaust port 4, the outside air suction port 5, the air supply port 6, and the humidification unit 15 are not limited to those shown in FIG. 9, and can be appropriately set.

(Embodiment 5)
A detachable branch chamber box 50 may be provided at the outlet 17 of the humidifying unit 15.

Here, the branch chamber box 50 will be described with reference to FIGS. 10 to 12.

The branch chamber box 50 has a box body 51, a chamber box inlet 52, and a chamber box outlet 53.

The box body 51 is connected to, for example, the upper part of the humidification unit 15. When the humidifying unit 15 is provided on the side of the main body case 2, the box main body 51 may be provided on the side or the upper part of the humidifying unit 15.

The chamber box inlet 52 and the chamber box outlet 53 are provided in the box body 51.

The chamber box inlet 52 is connected to the outlet 17 of the humidification unit 15. After the air that has passed through the humidifying unit 15 flows into the branch chamber box 50, it is supplied into the room from the chamber box outlet 53.

The box body 51 is made of a material having high heat insulating properties such as styrofoam.

A plurality of chamber box outlets 53 may be provided. At this time, by connecting a duct to the chamber box outlet 53 of the box main body 51, a configuration having a plurality of air supply ports can be provided, and more rooms can be efficiently supplied with air.

Further, the branch chamber box 50 may be directly connected to the air supply port 6 of the main body case 2.

Although the heat exchange type ventilation device according to the present invention has been described above based on the embodiment, the present invention is not limited to the embodiment. As long as the gist of the present invention is not deviated, various modifications that can be conceived by those skilled in the art are applied to the present embodiment, and a form constructed by combining components in different embodiments is also included in the scope of the present invention. ..

Since the heat exchange type ventilation device according to the present invention can improve workability by providing the air supply port, the exhaust port, the outside air suction port, and the indoor suction port on the same surface, the heat of the outside air and the room air can be improved. It is also useful as a duct-type ventilation device for replacement purposes, a duct-type air conditioner, and the like.

1 Heat exchange type ventilation device 2 Main body case 3 Indoor suction port 4 Exhaust port 5 Outside air suction port 6 Air supply port 7 Heat exchange element 8 1st side surface 9 2nd side surface 10 Air supply fan 11 Exhaust fan 12 Fan unit 13 Air supply path 14 Exhaust path 15 Humidification unit 16 Inflow port 17 Outlet 18 Control unit 19 Control panel 30 Humidation part 32 Inner wall 34 Blow-up air passage 35 Bottom 36 Humidation part drain port 37 Humidation part case 38 Humidation part drainage channel 40 Heating part 41 Heating member 42 Inclined member 43 Dew condensation water 44 Drainage from humidified part 45 Dew condensation water from heat exchange element 46 Condensation water from exterior 50 Branch chamber box 51 Box body 52 Chamber box inlet 53 Chamber box outlet 60 Centrifugal crushing part 61 Pumping pipe 62 Centrifugal crushing disk 63 Crushing motor 70 Drain pan 71 Drainage part 72 Holding part 73 Inclined part 74 Circumferential wall 75 Bottom wall

Claims (4)

It is a heat exchange type ventilation device provided with a main body case, a fan unit, and a heat exchange element. The main body case has an indoor suction port for sucking indoor air and an exhaust port for discharging the sucked indoor air to the outside. It has an outside air suction port that sucks in outside air and an air supply port that supplies the sucked outside air into the room.
The fan unit has an air supply fan and an exhaust fan.
The exhaust port, the outside air suction port, the indoor suction port, and the air supply port are provided on the first side surface of the main body case.
The main body case has a second side surface facing the first side surface.
The air supply fan forms an air supply path in which outdoor air is blown from the outside air suction port to the air supply port.
The exhaust fan forms an exhaust path in which indoor air is blown from the indoor suction port to the exhaust port.
The heat exchange element is provided at a position in the main body case where the air supply path and the exhaust path intersect.
The main body case is installed on the floor with the first side surface facing up and the second side surface facing down .
The heat exchange type ventilation device, wherein the air supply fan and the exhaust fan are provided below the heat exchange element in the main body case. A humidifying unit connected to the air supply port is provided.
The humidifying unit has an inlet, an outlet, and a humidifying section.
The inlet communicates with the air supply port and
The humidifying portion humidifies the air sucked from the inflow port, and the humidifying portion humidifies the air sucked from the inlet.
The outlet supplies air humidified by the humidifying portion into the room.
The heat exchange type ventilation device according to claim 1, wherein the humidifying unit is removable from the main body case. The humidifying unit is provided with a heating unit on the upstream side of the humidifying unit.
The heating unit heats the air sucked from the inflow port, and the heating unit heats the air.
The heat exchange type ventilation device according to claim 2, wherein the humidifying section humidifies the air heated by the heating section. The heat exchange type ventilation device according to claim 2, wherein a drain pan for receiving drainage from the humidifying unit is provided below the main body case.

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