JP2555284Y2 - Heat recovery ventilator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat recovery ventilator.

[0002]

2. Description of the Related Art A heat recovery ventilator for simultaneously supplying and exhausting air in a house and exchanging heat between the exhaust and the air supply has been known. The heat recovery ventilator includes a supply air blower, an exhaust blower, a heat exchanger, a control board,
A casing containing these components, wherein the casing has an outside air intake port that is a connection port with an outside air intake duct, an air supply port that is a connection port with an indoor air supply duct, and indoor air (hereinafter referred to as inside air). An inside air intake port that is a connection port with the intake duct, and an exhaust port that is a connection port with the outdoor exhaust duct are formed.In the casing, an outside air intake port and a heat exchanger, a heat exchanger and an air supply blower, An air supply passage connecting the air supply blower and the air supply opening is formed, and an exhaust passage connecting the inside air intake opening and the heat exchanger, the heat exchanger and the exhaust air blower, and the exhaust air blower and the exhaust opening are formed. The heat recovery ventilator is generally of the type buried in the ceiling, but in consideration of the ease of maintenance, a wall-mounted type is conventionally used.

[0003]

In the conventional wall-mounted type heat recovery ventilator, the connection port for the ventilation duct provided on the ceiling of the house is distributed between the top plate of the casing and both side walls. Since they are provided, there is a problem that a large duct connection piping space is required. The present invention has been made in view of the above problems, and an object of the present invention is to provide a wall-mounted heat recovery ventilator that does not require a large duct connection piping space.

[0004]

In order to solve the above-mentioned problems, the present invention comprises an air supply blower, an exhaust blower, a heat exchanger, a control board, and a casing containing these. The casing has an outside air intake port that is a connection port with an outside air intake duct, an air supply port that is a connection port with an indoor air supply duct, an inside air intake port that is a connection port with an indoor air intake duct, and an outdoor. An exhaust port, which is a connection port with the exhaust duct, is formed, and an air supply passage connecting the outside air intake port and the heat exchanger, the heat exchanger and the air supply blower, and the air supply blower and the air supply port is formed in the casing. A wall-mounted heat recovery ventilator having an inside air intake port and a heat exchanger, a heat exchanger and an exhaust blower, and an exhaust passage connecting the exhaust blower and the exhaust port, respectively. and, the inside air intake port, and an exhaust port, on the same line Each other without being location offset
To provide a heat recovery ventilator formed on the top plate of the casing. In a preferred embodiment of the present invention, the air supply blower is provided on one side of the casing, the exhaust blower is provided on the other side of the casing, and the heat exchanger is provided on the center of the casing. The air supply port is arranged to face the air supply blower, the exhaust port is arranged to face the exhaust air blower, the inside air suction port is arranged adjacent to the air supply port, and An outside air inlet is disposed adjacent to the air inlet. Book
In another preferred embodiment of the invention, the surrounding wall of a portion connecting the outside air inlet of the air supply passage and the heat exchanger is covered with a heat insulating material. In still another preferred embodiment of the present invention
Is provided with a detachable filter adjacent to the outside air suction port and the inside air suction port. In another preferred embodiment of the present invention
Here , a drain receiver is provided below the heat exchanger. In still another preferred aspect of the present invention, a bypass passage bypassing the heat exchanger is formed in the exhaust passage, and the air flow sucked from the inside air suction port is sent to one of the heat exchanger and the bypass passage. A directing valve is provided.

[0005]

[Function] In the present invention, the outside air intake port, the air supply port,
Since the inside air suction port and the exhaust port are formed in the top plate of the casing, the duct connection piping space is concentrated above the top plate of the casing. Outside air intake, air supply, and inside
The air intake and exhaust ports must be
Connected to these
Ducts coated with insulation do not interfere with each other. Since the air blower, the exhaust blower, the heat exchanger, the air inlet, the air outlet, the inside air inlet, and the outside air inlet are appropriately arranged, the overall size of the heat recovery ventilation device is small. . Since the surrounding wall of the portion connecting the outside air suction port of the air supply passage and the heat exchanger is covered with a heat insulating material, the surrounding wall does not dew. Since the detachable filter is provided adjacent to the outside air suction port and the inside air suction port, dust does not adhere to devices in the ventilation device. Since the drain receiver is provided below the heat exchanger, condensed water adhering to the heat exchanger is quickly discharged to the outside of the ventilator via the drain receiver. Since a bypass passage bypassing the heat exchanger is formed in the exhaust passage, and a valve for directing the air flow sucked from the inside air inlet to one of the heat exchanger and the bypass passage is provided. By operating the valve, it is possible to supply the outside air at an appropriate temperature due to heat exchange between the exhaust air and the air supply into the room in winter and summer, and to supply the room temperature as it is in the spring and autumn.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A heat recovery ventilator according to a first embodiment of the present invention will be described with reference to FIGS. In the following description,
The directions of arrows I, II, III, IV, V, and VI in FIG. 1 are referred to as front, rear, left, right, upper, and lower, respectively. 1 and 2, the heat recovery and ventilation device 1 includes a rectangular parallelepiped casing 2. Top plate 2a of casing 2
, An outside air inlet 3a is provided at the front left center, an inside air inlet 3b is provided at the front right center, an air supply port 3c is provided at the rear right end, and an exhaust port 3d is provided at the rear left end. Outside air inlet 3
a is connected to the outside air intake duct, the inside air intake port 3b is connected to the inside air intake duct, the air supply port 3c is connected to the air supply duct, and the exhaust port 3d is connected to the exhaust duct. The duct is previously installed on a ceiling of a house.

[0007] Inside the casing 2, there are all through walls 4 in the front-rear direction.
a forms a chamber 5a at the upper left center, and a chamber 5b is formed at the upper right center by all of the front and rear passing walls 4b and part of the wall 4a. The chamber 5a communicates with the outside air suction port 3a, and the chamber 5b communicates with the inside air suction port 3b. A filter 6a is provided in a communication portion between the chamber 5a and the outside air suction port 3a, and a filter 6b is provided in a communication portion between the chamber 5b and the inside air suction port 3b. A temperature sensor 7a is provided in the chamber 5a, and a temperature sensor 7b is provided in the chamber 5b. Room 5
The surrounding wall 4a is coated with a heat insulating material. In the casing 2, a chamber 5c is formed at an upper right rear portion by the wall 4c, and a chamber 5d is formed at an upper left rear portion by the wall 4d. The chamber 5c communicates with the air supply port 3c, and the chamber 5d communicates with the exhaust port 3d.
Is in communication with

[0008] Inside the casing 2, there are all through walls 4 in the front-rear direction.
A chamber 5e is formed at the lower left center by e, and a chamber 5f is formed at the lower right center by all the passing walls 4f in the front-rear direction and part of the wall 4e. The wall 4e is covered with a heat insulating material. Further, the wall 4f is covered with a heat insulating material in a portion in contact with a heat exchanger described later. In the casing 2, a high static pressure type air blower 8 is disposed below the chamber 5c, and a high static pressure type exhaust blower 9 is disposed below the chamber 5d.
Supply blower 8 is communicated with the chamber 5c through the opening 4c ₁ in the wall 4c, supply air blower 9 is communicated with the chamber 5d through an opening 4d ₁ in the wall 4d.

A heat exchanger 10 is slidably fitted in the front-rear direction in a front-rear guideway formed by a part of the walls 4a, 4b, 4f. Outdoor air passage of the heat exchanger 10 communicates with the chamber 5a via the opening 4a _1, one end of which is formed in the wall 4a, and the other end is in communication with the space 11 formed between the walls 4b and 4f . Internal air passage of the heat exchanger 10, through the opening 4b _1, one end of which is formed in the wall 4b chamber 5
b, and the other end thereof communicates with a space 12 formed between the walls 4a and 4e. An air supply passage is formed by the chamber 5a, the space 11, and the chamber 5c, and an exhaust passage is formed by the chamber 5b, the space 12, and the chamber 5d.

[0010] The wall 4e has a plate member 13 which is entirely connected in the front-rear direction.
And a drain receiver 14 is formed by the plate member 13 and a part of the walls 4e and 4f. Drain tray 14
Communicates with the chamber 5e through the drain pipe 15,
Via the opening 2a ₁ formed in the casing 2, and communicates with the drainage (not shown) disposed in the lower casing 2. In the chamber 5f, a control board 16 of the heat recovery and ventilation device 1 is provided. The front of the casing 2 includes an inner cover 17a, a heat exchanger cover 17b, a control unit cover 17
c, and is further closed by the front panel 18a and the filter cover 18b. The peripheral wall of the casing 2 including the front panel 18a and the filter cover 18b is covered with a heat insulating material.

The heat recovery and ventilating apparatus 1 according to the present embodiment configured as described above is mounted on a wall in a room by a mounting jig (not shown) fixed to the casing 2. As can be understood from the above description, in the present heat recovery apparatus 1, the outside air intake port 3a, the inside air intake port 3b, and the air supply port, which are the connection ports with the supply / exhaust duct (not shown) arranged on the indoor ceiling. 3
c, since the exhaust port 3d is provided on the top plate 2a of the casing, the duct connection piping space is concentrated above the top plate 2a of the casing. Therefore, unlike the conventional wall-mounted heat recovery ventilator, in which the outside air intake port, the inside air intake port, the air supply port, and the exhaust port are distributed on the top plate and both side walls of the casing, a wide duct is used. No connection piping space is required.

In the heat recovery apparatus 1, the outside air inlet 3
a, the inside air intake port 3b, the air supply port 3c, and the exhaust port 3d are not arranged on the same line, the outside air intake port 3a and the inside air intake port 3b are provided in front of the top plate 2a, The mouth 3d is provided at the rear of the top plate 2a. With such an offset arrangement, an appropriate interval between the connection ports is ensured, so that when the connection port is connected to a supply / exhaust duct covered with a heat insulating material disposed indoors, the power is supplied to the connection section. The exhaust ducts do not interfere with each other. The arrangement of the connection ports on the top plate 2a is not limited to the above. For example, while the arrangement in the left-right direction is the same as above, the outside air intake port 3a and the inside air intake port 3b are arranged at the rear of the top plate 2a, and the air supply port 3c and the exhaust port 3d are arranged at the front part of the top plate 2a. Alternatively, the outside air suction port 3a and the air supply port 3c may be provided at the front of the top plate 2a.
b and the exhaust port 3d may be arranged at the rear of the top plate 2a,
Alternatively, the inside air intake port 3b and the exhaust port 3d may be arranged at the front of the top plate 2a, and the outside air intake port 3a and the air supply port 3c may be arranged at the rear of the top plate 2a. In the present heat recovery device 1, a substantially linear air passage connecting the outside air suction port 3 a and the air supply blower 8 and a substantially linear air passage connecting the internal suction port 3 b and the exhaust blower 9 are provided. Since the heat exchanger 10 is disposed at the intersection, the equipment arrangement in the casing is compact, and the overall size of the device is small.

The operation of the heat recovery ventilator 1 according to this embodiment will be described below. The operation of the heat recovery ventilator 1 is controlled by a control circuit incorporated in the control board 16. By turning on a remote control switch (not shown), the heat recovery and ventilation device 1 is activated. The exhaust blower 9 is activated, and indoor contaminated air flows into the room 5b through the inside air suction port 3b from a not-shown inside air suction duct disposed on the ceiling of the house, as indicated by a broken arrow in FIG. . When the indoor contaminated air flows into the room 5b from the inside air inlet 3b, the airborne dust is removed by the filter 6b. Indoor contaminated air flowing into the chamber 5b passes through the opening 4b ₁ which is formed in the surrounding wall 4b of the chamber 5b flows into the inside air passage of the heat exchanger 10, further passes through the inside air passage, the wall 4a and the wall 4e Space 12 formed between
Flows into. The indoor contaminated air that has flowed into the space 12 is accelerated by the exhaust blower 9 and has openings 4d formed in the wall 4d.
₁ to the room 5d, and to the exhaust duct (not shown) provided on the ceiling of the house through the exhaust port 3d,
It is discharged outside the house through the duct.

At the same time as the exhaust air 9, the air blower 8 is operated, and as shown by the solid arrow in FIG. 2, from the outside air intake duct (not shown) provided on the ceiling of the house, through the outside air intake port 3 a. , The outside air flows into the chamber 5a. Outside air inlet 3a
When outside air flows into the chamber 5a from the air, the filter 6a removes floating dust. Outside air that has flowed into the chamber 5a passes through the opening 4a ₁ formed in the surrounding wall 4a of the chamber 5a flows into the outside air passage of the heat exchanger 10, further passes through the outside air passage,
It flows into the space 11 formed between the wall 4b and the wall 4f. When the outside air passes through the outside air passage of the heat exchanger 10, heat exchange is performed between the outside air and the inside air passing through the inside air passage. In winter, low-temperature outside air is heated by high-temperature inside air, and in summer, high-temperature outside air is heated. Outside air is cooled by low-temperature inside air. Outside air, which is warmed in winter by heat exchange with the inside air and cooled in summer, flows into the space 11, is accelerated by the air supply blower 8, passes through the opening 4 c ₁ formed in the wall 4 c, and enters the room 5 c. And flows into an air supply duct (not shown) provided on the ceiling of the house through the air supply port 3c, and is supplied to each room in the house through the duct.

Since the high static pressure type blowers 8 and 9 are used, a sufficient air volume can be secured against pressure loss due to the ventilation duct. The output of the blowers 8, 9 is
By operating the remote control switch, three levels of large, medium and small are selectively set. As a result, an optimal air volume is selected according to the needs of the resident. When the temperature difference between the outside air and the inside air detected by the temperature sensors 7a and 7b is equal to or more than a predetermined value, the operation of the air supply blower 8 is automatically changed from continuous operation to intermittent operation. Thereby, the effectiveness of the heat exchange by the heat exchanger 10 is ensured. The condensed water generated in the heat exchanger is collected by a drain receiver 14 and drain pipe 1
5. Discharged to the outside of the heat recovery ventilator 1 through the chamber 5e. The surrounding wall 4a of the chamber 5a that is in contact with low-temperature outside air in winter is covered with a heat insulating material, so that no dew condensation occurs. Similarly, the wall 4e of the room 5e, which may be exposed to cold outside air in winter,
And the heat exchanger 1 on the wall 4f disposed adjacent to the wall 4e.
Since the portion adjacent to 0 is also covered with a heat insulating material, there is no condensation. Thereby, damage to the devices in the casing 2 is prevented. As described above, according to the present ventilator,
By the simultaneous supply and exhaust with heat exchange, each room in the house is sufficiently ventilated, and the air supplied to each room is kept at an appropriate temperature. This provides a comfortable environment for both the home and the resident.

A heat recovery ventilator according to a second embodiment of the present invention will be described with reference to FIGS. 3 and 4, the same members as those of the heat recovery and ventilation device of the first embodiment are denoted by the same reference numerals. As shown in FIGS. 3 and 4, a chamber 5 g is formed below the chamber 5 b by the entire through-wall 4 g in the front-rear direction. The chamber 5g has an opening 4b formed in the wall 4b.
_It communicates with the chamber 5b through ₂ . Along with the rear panel of the casing 2, a part of the wall 4f, a part of the wall 4g,
A chamber 5h is formed above the chamber 5f by the wall 4h. The chamber 5h has an opening 4g ₁ formed at the rear end of the wall 4g.
And the space 5 formed between the wall 4a and the wall 4e. Room 5g and Room 5
With h, a bypass passage bypassing the heat exchanger 10 is formed. A rotating shaft 20 extending in the front-rear direction is provided in the chamber 5b, and a valve plate 21 is fixed to the rotating shaft 20. The valve plate 21 swings between a first position indicated by a solid line in FIG. 3 and a second position indicated by a dashed line with the rotation of the rotary shaft 20. The valve plate 21, the opening 4b ₁ of the wall 4b is closed in a first position, at the second position, the wall 4b opening 4b
Close ₂ The rotating shaft 20 extends outside the casing through the inner door of the casing 2 and the front panel.
A ventilation mode switching knob (not shown) is attached to a front end of the rotating shaft 20 protruding outside the casing. Except for the above, the configuration of the heat recovery ventilator according to the present embodiment
It is the same as the configuration of the heat recovery and ventilation device according to the embodiment.

In the present heat recovery ventilator, when the valve plate 21 is in the second position, the opening 4b ₂ of the wall 4b is closed, the opening 4b ₁ is opened, the inside air heat exchanger 10
Through the inside air passage. Therefore, similarly to the heat recovery ventilator of the first embodiment, in the heat exchanger 10, heat is exchanged between the inside air and the outside air, and the outside air at an appropriate temperature is supplied to each room in the house. On the other hand, the valve plate 21 when in a first position, the opening 4b ₁ of the wall 4b is closed, the opening 4b ₂ is opened. Therefore, internal air does not pass through the internal air passage of the heat exchanger 10, as indicated by the dashed-line arrow in FIG. 3, flows into the chamber 5g through the opening 4b ₂ of the wall 4b, and the chamber 5g rearward Flows toward the opening 4g ₁ formed at the rear end of the wall 4g.
Through the room 5h, flows to the left inside the room 5h,
It flows into the space 12. That is, the inside air is divided into the room 5g and the room 5
h through the bypass passage formed by the heat exchanger 1
It bypasses 0 and flows into the space 12. Therefore, in the heat exchanger 10, heat is not exchanged between the inside air and the outside air, and the outside air is directly supplied to each room in the house without adjusting the temperature. Selection of the position of the valve plate 21 between the first position and the second position is performed by a ventilation mode switching knob.
Except for the above, the operation of the heat recovery ventilator according to the present embodiment,
This is the same as the operation of the heat recovery and ventilation device according to the first embodiment.
According to this ventilator, energy saving and comfortable living environment are realized by performing heat recovery ventilation in winter and summer, while appropriate temperature outside air is introduced directly into the room in spring and autumn. Thereby, a comfortable living environment is realized.

[0018]

[Effect] As described above, in the present invention, since the outside air intake port, the air supply port, the inside air intake port, and the exhaust port are formed in the top plate of the casing, the duct connection piping space is reduced. Are collected above the top plate. Therefore, a large duct connection piping space is not required. Outside
Same air inlet, air inlet, inside air inlet, and outlet
Placed offset from each other without placing them on a line
So the ducts coated with thermal insulation connected to these
Do not interfere with each other. An air blower, an exhaust blower,
Since the heat exchanger, the air supply port, the exhaust port, the inside air suction port, and the outside air suction port are appropriately arranged, the overall size of the heat recovery ventilation device is small. Since the surrounding wall of the portion connecting the outside air suction port of the air supply passage and the heat exchanger is covered with a heat insulating material, the surrounding wall does not dew. Since the detachable filter is provided adjacent to the outside air suction port and the inside air suction port, dust does not adhere to devices in the ventilation device. Since the drain receiver is provided below the heat exchanger, condensed water adhering to the heat exchanger is quickly discharged to the outside of the ventilator via the drain receiver. Since a bypass passage bypassing the heat exchanger is formed in the exhaust passage, and a valve for directing the air flow sucked from the inside air inlet to one of the heat exchanger and the bypass passage is provided. By operating the valve, it is possible to supply outside air whose temperature has been adjusted to an appropriate temperature by heat exchange between the inside air in the winter and summer, and to supply the outside air at an appropriate temperature as it is in the spring and autumn. Therefore, energy saving and a comfortable living environment throughout the year are realized.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a heat recovery ventilator according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of the heat recovery and ventilation device of FIG. 1 as viewed from the front.

FIG. 3 is a sectional view of a heat recovery ventilator according to a second embodiment of the present invention, corresponding to FIG.

FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2, focusing on a rear portion of the heat recovery and ventilation apparatus according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat recovery ventilation device 2 Casing 2a Top plate 3a Outside air intake 3b Inside air intake 3c Air supply 3d Exhaust 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h Room 6a, 6b Filter 7a, 7b Temperature sensor Reference Signs List 8 air supply blower 9 exhaust blower 10 heat exchanger 14 drain receiver 16 control board 21 valve plate

Claims (6)

(57) [Scope of request for utility model registration] 1. An air supply blower, an exhaust blower, a heat exchanger, a control board, and a casing containing the same, wherein the casing has an outside air intake port serving as a connection port with an outside air intake duct. An air supply port that is a connection port with an indoor air supply duct, an inside air intake port that is a connection port with an indoor air intake duct, and an exhaust port that is a connection port with an outdoor exhaust duct are formed. Has an outside air intake and a heat exchanger, a heat exchanger and an air supply blower, an air supply passage connecting the air supply blower and the air supply opening, an inside air intake and a heat exchanger, a heat exchanger and an exhaust air blower, In a wall-mounted heat recovery ventilator having an exhaust passage connecting an exhaust blower and an exhaust port, the outside air intake port, the air supply port, the inside air intake port, and the exhaust port are the same.
A heat recovery ventilator formed on the top plate of the casing, offset from each other without being aligned . 2. An air supply blower is disposed on one side of the casing, an exhaust blower is disposed on the other side of the casing, and a heat exchanger is disposed on a central portion of the casing.
The air supply port is arranged facing the air supply blower, the exhaust port is arranged facing the exhaust air blower, the inside air intake port is arranged adjacent to the air supply port, and the air intake port is arranged adjacent to the exhaust port. The heat recovery ventilator according to claim 1 , wherein an outside air suction port is provided. 3. enclosure portions connecting the outside air inlet of the supply passage and the heat exchanger according to claim 1 which is coated with a heat insulating material
Or the heat recovery ventilator according to 2 . 4. The heat recovery ventilator according to claim 1, wherein a removable filter is provided adjacent to the outside air suction port and the inside air suction port. 5. The heat recovery ventilator according to claim 1 , wherein a drain receiver is provided below the heat exchanger. 6. A bypass passage that bypasses the heat exchanger is formed in the exhaust passage, and a valve that directs the air flow sucked from the inside air suction port to one of the heat exchanger and the bypass passage is provided. The heat recovery ventilator according to any one of claims 1 to 5 , which is provided.