JPH035501B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat exchange type ventilation device that recovers indoor thermal energy discharged outdoors through ventilation of a house or the like.

In recent years, as a means of ventilating a room that is being cooled or heated, the method is to exhaust dirty air from inside the room to the outside, bring in fresh air from outside, and exchange heat between the indoor air and outdoor air. Heat exchange type ventilation devices, which transfer the thermal energy of exhausted indoor air to inhaled outdoor air and recover it indoors, have come into use, and their popularity has been remarkable as homes have become more airtight.

Conventional configuration and its problems Figures 1 to 4 about conventional heat exchange type ventilation equipment
This will be explained based on the diagram. In the figure, a ceiling-embedded heat exchange type ventilation system Z and a wall-embedded heat exchange type ventilation system R are installed in separate rooms. In this ceiling-embedded heat exchange type ventilation system Z, 100 is a louver having an indoor side suction port 101 and an indoor side discharge port 102, and this louver 100 has an outdoor side discharge port 104 and an outdoor side suction port 105. Body 1 with
03 is fitted. This main body 103 includes an exhaust passage 106 that communicates the indoor side suction port 101 and the outdoor side discharge port 104, and
An air supply passage 1 that communicates with the outdoor side suction port 105
07 is formed, and an exhaust vane 109 is provided in the exhaust passage 106, an air supply vane 110 is provided in the air supply passage 107, and an exhaust vane 109 is provided in the air supply passage 107.
A motor 111 that rotates the air supply vane 110 is provided. Further, the exhaust passage 106 and the air supply passage 107 have an intersection, and a heat exchange element 108 is provided at this intersection.

In the above configuration, when the exhaust vane 109 and the air supply vane 110 are rotated by the motor 111,
Indoor air sucked in from the indoor suction port 101 of the louver 100 flows through the exhaust passage 10 as indicated by arrow A→A'.
6 and the main body 103 through the heat exchange element 108.
The outdoor air discharged outdoors from the outdoor side discharge port 104 of the main body 103 and sucked in from the outdoor side suction port 105 of the main body 103 passes through the air supply passage 107 as shown by arrows B...→B', passes through the heat exchange element 108, and enters the louver. It is discharged into the room from the indoor side discharge port 102 of 100 . At this time, the thermal energy of the outdoor air and the indoor air are exchanged with each other inside the heat exchange element 108, and the thermal energy of the indoor air is recovered indoors. Further, in a wall-embedded heat exchange type ventilation device R installed in another room, 200 is a louver having an indoor side suction port 201 and an indoor side discharge port 202; 204 and an outdoor suction port 205
03 is fitted. This main body 203 includes an exhaust passage 206 that communicates the indoor suction port 201 and the outdoor discharge port 204, and an air supply passage 207 that communicates the indoor discharge port 202 and the outdoor suction port 205.
The exhaust passage 206 is provided with an exhaust vane 209, the air supply passage 207 is provided with an air supply vane 210, and the exhaust passage 209 is provided with an air supply vane 210.
A motor 211 that rotates the air supply vane 210 is provided. Further, the exhaust passage 206 and the intake passage 207 have an intersection, and a heat exchange element 208 is provided at this intersection.

In the above configuration, when the exhaust vane 209 and the air supply vane 210 are rotated by the motor 211,
Indoor air sucked in from the indoor side suction port 201 of the louver 200 passes through the exhaust passage 206 as shown by the arrow C→C', passes through the heat exchange element 208, and is discharged outdoors from the outdoor side discharge port 204 of the main body 203. 20
The outdoor air sucked in from the indoor suction port 205 of No. 3 passes through the air supply passage 207 as shown by arrows D...→D'.
It passes through the heat exchange element 208 and is discharged indoors from the indoor discharge port 202 of the louver 200 . At this time, the thermal energy of the indoor air and the indoor air are exchanged with each other inside the heat exchange element 208, and the thermal energy of the indoor air is recovered into the room.

However, if heat exchange type ventilation is to be performed in two rooms with the above configuration, a heat exchange type ventilation system must be installed in each room, and for a ceiling-embedded type heat exchange type ventilation system, a heat exchange type ventilation system must be installed in each room. Since the exhaust vanes, air supply vanes, motor, etc. are built into the main unit, the main unit becomes larger and heavier, making installation work extremely difficult. The drawback was that the duct could not be connected after it was pasted, so installation work could not be done. In addition, since a large opening in the ceiling is required to install the main body, in the case of a rod-edge ceiling, the rod edge must be cut, resulting in problems such as poor appearance, and when cleaning the heat exchange element. Because the louver size is large, it is troublesome to remove, and it is heavy, so there is a high risk of falling, etc. Also, when replacing the main unit, it is necessary to remove the ceiling plate, and when replacing the motor, etc., it is difficult to remove it. Therefore, maintenance and inspection were not easy. Additionally, since the motor and blades are located in the main unit, noise during operation easily enters the room through the louver, increasing indoor noise. For wall-mounted heat exchange type ventilation equipment,
Although installation work and maintenance and inspection are easy, since it must be installed on a wall facing outdoors, the installation location is limited, and the louver protrudes from the wall, resulting in an unsatisfactory appearance.

In addition, for both the ceiling-embedded type and the wall-embedded type, there are no effective measures to prevent outside wind from entering the room, and when the ventilation system is stopped, outside wind enters the room, causing cold drafts in the winter, and It was deteriorating the environment. Also, similar to the infiltration of outside wind, external noise infiltrated into the room, increasing indoor noise.

OBJECT OF THE INVENTION The present invention solves these conventional drawbacks and facilitates the installation and maintenance inspection of a heat exchange type ventilation system when performing heat exchange ventilation for two rooms, as well as improving the appearance. The present invention provides a heat exchange type ventilation device that reduces noise and prevents outside wind and noise from entering.

Structure of the Invention The present invention includes a blower unit having an exhaust vane, an air supply vane, a motor, and an electric damper inside, and a plurality of heat exchange units having heat exchange elements inside. The heat exchange unit is connected with a duct to provide heat exchange ventilation to multiple rooms at the same time or individually.
The main body of the blower unit is installed on the outdoor wall, the supply/discharge box is installed on the wall, and the collection box is installed on the indoor wall.The duct and heat exchange unit are installed so that the heat exchange unit can be freely removed from the indoor side through the ceiling opening. By removably connecting it to the blower unit using the provided duct mounting plate, it simplifies installation work, facilitates equipment replacement, and maintenance and inspection.It also reduces the size of the ceiling opening and improves the appearance of the indoor ceiling surface. A damper installed in the heat exchange unit prevents outside wind and noise from entering, and reduces indoor noise.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 5 to 8. In the figure, 1 is the primary exhaust passage 2
and a primary air supply passage 3, the primary exhaust passage 2 is provided with an indoor discharge port 4 and a suction port 5, and the primary air supply passage 3 is provided with an outdoor suction port 6 and a discharge port 7. a main body 8, a supply/discharge box 9 connected to the main body 8 so that the suction port 5 and discharge port 7 are adjacent to each other, and a collection box 1 connected to the supply/discharge box 9.
0, an exhaust vane 11 arranged in the primary exhaust passage 2 for blowing air to the primary exhaust passage 2, and an exhaust vane 11 arranged in the primary air supply passage 3 and arranged in the primary air supply passage 3.
This blower unit has air supply blades 12 for blowing air to the room, and a motor 13 for rotating the exhaust air blades 11 and the air supply blades 12. A collection box 10 is located under the ceiling on the indoor side, a blower unit 1 is attached to the outdoor side so as to protrude, and an outdoor hood 38 is attached to cover the outdoor side suction port 6 and the outdoor side discharge port 4. And gathering box 1
A heat exchange unit A14 and a heat exchange unit B24 are arranged on the ceiling surfaces of the M room and the N room, which are located apart from the room M and the room N, respectively. This heat exchange unit A
14 is a secondary exhaust passage A15 and a secondary air supply passage A16 partitioned inside, and this secondary exhaust passage A
15, the indoor suction port A17 and the discharge connection port A
A ventilation box A21 provided with an indoor discharge port A19 and a suction connection port A20 in the secondary air supply passage A16 intersects the secondary exhaust passage A15 and the secondary air supply passage A16. It consists of a heat exchange element A22 provided. On the other hand, the heat exchange unit B22 has a secondary exhaust passage B2 partitioned inside.
5 and a secondary air supply passage B26, an indoor suction port B27 and a discharge connection port B28 are provided in this secondary exhaust passage B25, an indoor suction port B27 and a discharge connection port B28 are provided for the secondary exhaust passage B25, A ventilation box B31 provided with an indoor discharge port A29 and a suction connection port B30 in the secondary air supply passage B26;
The secondary exhaust passage B25 and the secondary air supply passage B26 intersect with each other, and a heat exchange element B32 is provided at the intersection. Further, on the outside of the heat exchange unit A14, the discharge connection port A18 and the suction connection port A2 are provided.
Duct mounting plate A34 that can be attached and detached in accordance with 0
The collecting box 10 and this duct mounting plate A34 are connected by a two-layer connecting duct A35. This two-layer connection duct A35 communicates the suction port 5 of the blower unit 1 with the discharge connection port A18 of the heat exchange unit A14, and also communicates the discharge port 7 of the blower unit 1 with the suction connection port A20 of the heat exchange unit A14. I'm letting you do it. A damper A23 is provided on the M indoor side of the heat exchange unit A14 to cover and open and close the indoor suction port A17 and the indoor discharge port A19. A removable duct mounting plate B36 is provided on the outside of the heat exchange unit B24 in correspondence with the discharge connection port B28 and the suction connection port B30, and the collection box 10 and this duct mounting plate B36 are connected in two layers. Duct A
It is connected at 37. This two-layer connection duct B
37 communicates the suction port 5 of the blower unit 1 with the discharge connection port B28 of the heat exchange unit B24, and also connects the discharge port 7 of the blower unit 1 with the suction connection port B30 of the heat exchange unit B24. Then, the N of this heat exchange unit B24 is
A damper B33 is provided on the indoor side to open and close the indoor suction port B17 and the indoor discharge port B19.

In the above configuration, when the damper A23 provided in the heat exchange unit A14 provided in the M chamber is opened,
The motor 13 rotates the exhaust discharge vane 11 and the air supply vane 12 at a speed corresponding to the set ventilation amount of room M, and the indoor suction port A17 of the heat exchange unit A14 is rotated.
The indoor air from room M that has been sucked in further passes through the heat exchange element A22 as shown by the arrow X→X', and then enters the secondary exhaust passage A.
15 through discharge connection port A18, double layer duct A3
5 and go to collection box 10 of blower unit 1.
The outdoor air enters the air, passes through the supply/exhaust box 9, flows from the suction port 5 of the main body 8 to the primary exhaust passage 2, passes through the indoor discharge port 4, is discharged outdoors from the outdoor hood 38, and is sucked in from the outdoor hood 38. Air is arrow Y→
Outdoor suction port 6 of blower unit 1 as shown in Y'
The air then flows to the primary air supply passage 3, flows from the discharge port 7 to the supply/discharge box 9 and collection box 10, passes through the two-layer duct A35, and flows from the suction connection port A20 of the heat exchange unit A14 to the secondary air supply passage A16. , is discharged from the indoor side discharge port A19 to the M chamber through the heat exchange element A22. At this time, the thermal energy of the outdoor air and the indoor air are exchanged with each other inside the heat exchange element A22, and the thermal energy of the indoor air is recovered indoors. In addition, a damper B33 installed in the heat exchange unit B24 installed in the N room
When the exhaust vane 11 is opened by the motor 13,
The air supply vanes 12 rotate at a speed according to the set ventilation amount to ventilate the N room through heat exchange. Furthermore, when the damper A23 of the M room and the damper B33 of the N room are opened at the same time, the motor 13 rotates the exhaust vane 11 and the air supply vane 12 at a speed that reaches the total ventilation volume of the ventilation volume set for the M room and the N room. However, it is possible to perform heat exchange ventilation in two rooms, M room and N room, at the same time.
In this case, heat exchange ventilation is possible in rooms M and N using one blower unit placed on the outer wall and a heat exchange unit installed on the ceiling of each room, and each room is equipped with a heat exchange type ventilation system. The cost of the equipment is lower compared to when they are installed, and since the blower unit and heat exchange unit are separate units, each unit can be made smaller and lighter than an integrated unit. Even if it is impossible to install an integrated unit due to the small space under the ceiling of the room to be ventilated, it is possible to install the heat exchange unit on the ceiling of the room to be ventilated and the blower unit to the outside wall. Become. In addition, when performing installation work after pasting the ceiling board, first install the blower unit, insert the duct into the attic through the ceiling opening of each room to be ventilated, connect the duct to the blower unit, and then install the duct. Fix the board to the ceiling. In this case, work such as installing the heat exchange unit can be done from inside the room through the ceiling openings of each room, and the blower unit can be installed from outside, so work efficiency is very good. In addition, the ceiling opening in the room to be ventilated can be made small because it is the same size as the heat exchange unit, and the appearance of the ceiling surface can also be streamlined. In addition, all maintenance inspections and replacements such as cleaning of the heat exchange elements can be easily carried out from the indoor side, so there is no need to remove the ceiling plate, and work efficiency is good. Furthermore, maintenance and inspection of the blower unit can be easily performed from outside, resulting in good work efficiency. In addition, since the blower unit is placed on the outside wall, noise during operation is difficult to enter the room, and there is no negative impact such as increased indoor noise.
In addition, the operating speed of the blower unit changes depending on the condition of the damper in each room, so when ventilating only one room, it will operate at a low speed, resulting in less power consumption and noise, and when ventilating two rooms, it will operate at a lower speed. High-speed operation allows stable ventilation without reducing the amount of ventilation per room. In addition, since the damper is closed when the vehicle is stopped, outside wind does not enter the vehicle, making it difficult for external noise to enter the interior of the vehicle, thereby preventing deterioration of the interior environment. Furthermore, if the damper is made of ceiling material, the appearance of the ceiling will be more streamlined. Furthermore, since the blower unit and heat exchange unit are connected through a double-layer duct, installation work becomes easier.

Effects of the Invention As described above, according to the present invention, it is possible to perform heat exchange ventilation in multiple rooms simultaneously or individually using one blower unit and multiple heat exchange units, and each unit can be operated independently. Because there are
Even if the timing of the installation work and the progress of the construction are slightly different, the work can be done easily, the installation work is very easy, and the appearance of the ceiling surface is also good. In addition, maintenance and inspection are very easy as well as installation work, and since it is difficult for outside wind and noise to enter the room, it is effective in preventing deterioration of the indoor environment.

[Brief explanation of the drawing]

Figure 1 is an installation diagram of a conventional heat exchange type ventilation system.
Figure 2 is a side cross-sectional view of a conventional ceiling-mounted heat exchange type ventilation system, Figure 3 is a plan view of the same, Figure 4 is a side cross-sectional view of a conventional wall-mounted heat exchange type ventilation system, and Figure 5 is a side cross-sectional view of a conventional wall-mounted heat exchange type ventilation system. 6 is a side sectional view of one embodiment of the present invention, FIG. 6 is a plan view of the same, FIG. 7 is a side sectional view of the same and is an installation view of the heat exchange unit, and FIG. 8 is a perspective view of the heat exchange element. 1...Blower unit, 2...Primary exhaust passage,
3...Primary air supply passage, 4...Outdoor outlet, 5...
...Suction port, 6...Outdoor suction port, 7...Discharge port,
8...Main body, 9...Supply/exhaust box, 10...Collection box, 11...Exhaust vane, 12...Air supply vane, 13...Motor, 14...Heat exchange unit A, 15...2 Secondary exhaust passage A, 16...Secondary air supply passage A, 17...Indoor suction port A, 18...Discharge connection port A, 19...Indoor discharge port A, 20...Suction connection port A, 21 ...Ventilation box A, 22...
Heat exchange element A, 23... Damper A, 24... Heat exchange unit B, 25... Secondary exhaust passage B, 26
...Secondary air supply passage B, 27...Indoor suction port B,
28...Discharge connection port B, 29...Indoor discharge port B, 30...Suction connection port B, 31...Ventilation box B, 32...Heat exchange element B, 33...Damper B, 34...Duct Mounting plate A, 35...Two-layer connection duct A, 36...Duct mounting plate B, 37...Two-layer connection duct B, 38...Outdoor hood.

Claims (1)

[Claims] 1. A primary exhaust passage and a primary air supply passage are defined, 1
The secondary exhaust passage has an outdoor discharge port and a suction port,
The primary air supply passage includes a main body having an outdoor suction port and a discharge port, a supply/discharge box connected to the main body so that the suction port and discharge port are adjacent to each other, and a supply/discharge box connected to the main body. an air blower having a collection box provided with a main exhaust passage, an exhaust vane for blowing air to the primary exhaust passage, an air supply blade for blowing air to the primary air supply passage, and a motor for rotating them. The unit is divided into a secondary exhaust passage and a secondary air supply passage,
The secondary exhaust passage has an indoor suction port and a discharge connection port, and the secondary air supply passage includes a ventilation box having an indoor discharge port and a suction connection port, and a ventilation box that connects the secondary exhaust passage and the secondary air supply passage. A heat exchange element provided at the intersection of the air passages,
It has a plurality of heat exchange units each having a damper provided so as to cover the indoor side suction port and the indoor side discharge port, and the blower unit has a supply/discharge box provided in the wall and a main body provided on the outdoor wall surface. , a heat exchanger in which a collection box is provided on an indoor wall surface, and the collection box and the discharge connection port and suction connection port of each heat exchange unit are connected to a connecting duct, and the discharge connection port and suction connection port of the heat exchange unit are provided respectively. A heat exchange type ventilation system that is connected to the unit through a detachable duct mounting plate, and has a configuration in which the motor of the blower unit is operated by opening a damper provided with each heat exchange unit. 2. The heat exchange type ventilator according to claim 1, wherein the motor provided in the blower unit is configured such that its operating speed changes depending on the number of open dampers. 3. Claim 1, wherein the collection box is connected to duct mounting plates provided at the suction connection port and the discharge connection port of the heat exchange unit by a two-layer duct whose central portion is partitioned in the extension direction. or the heat exchange type ventilation device according to item 2.