JPH0533979A - Ventilator - Google Patents

Abstract

PURPOSE:To improve comfortableness by forming a body in a vertical type in a simultaneous air supply/discharge type ventilator having a heat exchanger provided therein, providing an indoor side suction port at an upper end, an indoor side discharge port at a lower end, and feeding a discharge flow vertically downward without bringing the discharge flow in the chamber into contact with a human body. CONSTITUTION:An indoor side suction port 54 is provided at an upper end of an outer housing 50 made of a box, an indoor side discharge port 55 is provided at a lower end thereof, an outdoor side suction port 60 is similarly provided at an upper part of a back surface of the housing 50, and an outdoor side discharge port 61 is provided at a lower part thereof. Then, a discharge blower 68 and an air supply blower 69 for forming a discharge passage communicating with the port 54 and the port 61 and an air supply passage communicating with the port 60 and the port 55 are installed, and the passages are crossed. A heat exchanger 34 is mounted at an intersection between the discharge passage and the air supply passage. Since the atmospheric air into a chamber flows vertically down from the port 55, it is not brought into contact with a human body, and comfortable air conditioning for inhibiting the human body to feel chilled air is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simultaneous supply / discharge type ventilation fan.

[0002]

2. Description of the Related Art FIG. 10 and FIG.
It is a figure which shows the conventional ventilation fan shown by the Unexamined-Japanese-Patent No. 43502, 1 is a room, 2 is a wall, 3 is a ventilation hole of the rectangular shape provided in 2 on the wall, 4 is the ventilation fan which becomes this invention, 5 is A box, 6 is an indoor suction port, 7 is an indoor discharge port, 8 is an outdoor suction port, and 9 is an outdoor discharge port. These inlets and outlets are formed horizontally in the box 5 in a rectangular shape. 10,
11, 12, 13, 14, 15, 16, 17, and 18 are partition plates provided in the box body 5 for separating the intake passage and the exhaust passage, and 19 is an air cleaner provided so as to cover the intake port 6. A filter, 20 is an air purifying filter provided so as to cover the suction port 8, 21 is an exhaust centrifugal blower provided in an exhaust passage from the indoor to the outdoor, 22 is a casing, 23 is its intake port, and 24 is its The air supply port 25 is a cylindrical centrifugal multiblade impeller formed in a cylindrical shape by a plurality of strip-shaped blade pieces. Reference numeral 26 is an intake centrifugal blower provided in an intake passage from the outside to the room, which has the same structure as the exhaust centrifugal blower 21, and 27 is a casing thereof. Two
Reference numeral 8 is its intake port, 29 is its air supply port, and 30 is an impeller. Reference numeral 31 is a hole formed in the partition plate 10, 32 is a drive electric motor fitted in the hole 31 in an airtight manner, and 33 is a drive shaft thereof, and impellers 25 and 30 are connected to both ends of the drive shaft. Three
Reference numeral 4 denotes a heat exchanger provided at the intersection of the intake passage and the exhaust passage. Referring to FIG. 11, reference numeral 35 denotes a flat plate-like member made of a material having heat conductivity and no moisture permeability, for example, aluminum thin plates. Partition plates 36 are a plurality of spacing plates having a sawtooth-shaped cross section, and the spacing plates 36 are partition plates 35.
Between the two, the corrugations are held 90 degrees apart by alternately forming them. Reference numeral 37 denotes a few intake air vent holes that allow the intake air flow to flow in the direction of arrow a, and 38 denotes a few exhaust air vent holes that allow the exhaust air flow to flow in the direction of arrow b. It is formed between the surface and the plane of the partition plate 35. Referring again to FIG. 1, reference numeral 39 denotes a water drop tray provided below the heat exchanger 34, which receives water drops condensed on the heat exchanger 34. Reference numeral 40 is a drain port of the tray 39, and 41 is a drain pipe for draining water droplets from the drain port 40 to the outside of the box body 5.

The conventional ventilation fan is constructed as described above, and when the driving electric motor 31 is energized, the blower 26 sucks the outdoor air from the suction port 8 through the filter 20 and the exhaust air through the suction ventilation hole 37 and the discharge port 7 to the room. Supply to. At the same time, the blower 21 sucks indoor air from the suction port 6 through the filter 19 and discharges the air from the discharge port 9 to the outside through the exhaust ventilation hole 38. As a result, even if the room is ventilated, the heat exchanger 34 has a heat exchanger between the exhaust flow and the intake flow via the partition plate 35, so that the temperature of the room does not fluctuate greatly due to the ventilation of this device. . At the same time, the moisture that has accumulated inside the room is discharged to the outside. In addition, the warm exhaust flow is the partition plate 35.
Water droplets generated in the exhaust ventilation hole 38 due to being cooled by the cold intake air flow through the water drops into the water droplet receiving tray 39,
Further, it is discharged from the drain pipe 41 to the outside of the box body 5.

[0004]

In the conventional ventilation fan as described above, since the indoor discharge port 7 is positioned perpendicular to the wall 2 surface, the cold air directly hits the human body in the room 1 and is comfortable especially in cold regions. There was a problem of impairing sex.

Further, due to the structure of the product, it is difficult for air current to flow around the drive motor 32, and the drive motor 32 is
There is a problem that the outer peripheral temperature of the motor rises, and as a result the life of the motor is shortened.

The present invention has been made to solve the above problems, and a comfortable air-conditioning / ventilating action can be obtained while the blowout flow from the indoor discharge port does not directly hit the human body.
The purpose is to obtain a ventilation fan with a long product life.

[0007]

A ventilation fan according to the present invention is provided with an outer casing having an indoor suction port, an indoor discharge port, an outdoor suction port and an outdoor discharge port, and an outer casing. An exhaust passage that connects the indoor suction port and the outdoor discharge port, an air supply passage that communicates the outdoor suction port and the indoor discharge port, and the air supply passage and the exhaust passage are provided. A blower, and a heat exchanger removably provided at the intersection of the air supply passage and the exhaust passage, the indoor suction port on the upper wall surface of the outer casing, and the chamber on the lower wall surface. An inner discharge port is provided.

Further, a heat insulating material is attached to the inner wall of the outer casing, and a rectifying guide which is formed integrally with the heat insulating material and is located inside the indoor discharge port is provided.

Further, the indoor discharge port is formed by a lattice composed of a plurality of axial rods having a streamlined cross-sectional shape, and return pieces facing each other are projected on inner walls of both ends of the lattice.

[0010]

According to the present invention, the outer casing provided with the indoor suction port, the indoor discharge port, the outdoor suction port and the outdoor discharge port, and the indoor suction port and the chamber provided in the outer chassis. An exhaust passage communicating with the outer discharge port, an air supply passage communicating with the outdoor suction port and the indoor discharge port, a blower provided in the air supply passage and the exhaust passage, and the air supply passage And a heat exchanger detachably provided at the intersection of the exhaust passage and the exhaust passage, and the indoor side inlet is provided on the upper wall surface of the outer casing, and the indoor outlet is provided on the lower wall surface. The outside air from the outside passes through the heat exchanger through the air supply passage and is discharged as a downward airflow from the indoor discharge port.

Further, since the heat insulating material is mounted on the inner wall of the outer casing, and the rectifying guide which is formed integrally with the heat insulating material and is located inside the indoor discharge port is provided, the discharge flow from the indoor discharge port is rectified. As the wind speed rises at the guide, it is rectified.

Further, since the indoor discharge port is formed by a lattice composed of a plurality of axial rods having a streamlined cross-sectional shape, and the return pieces facing each other are provided on the inner walls at both ends of the lattice.
The discharge flow from the indoor discharge port flows so as to cover the circumference of the shaft rod, the warm air is not entrained by the discharge flow, and the return pieces return the discharge flow to both ends of the lattice, and the air in a mixed state of cold air and warm air Covered in.

[0013]

1 to 9 are views showing an embodiment of the present invention. In the drawings, 1, 2, 10, 23 to 25, 29 and 31 to 40 show the same or corresponding portions as the above-mentioned conventional example. , 50 are outer casings forming a ventilation fan 51, and a front case 52
And a rear case 53. Reference numeral 54 denotes an indoor-side suction port provided on the upper wall surface of the front case 52, which is formed in a lattice shape as shown in FIG. Reference numeral 55 is an indoor discharge port also provided on the lower wall surface of the front case 52, and is formed by a laterally long lattice 57 by a plurality of shaft rods 56 having a streamline cross section and rounded downward. . Reference numeral 58 is a return piece integrally provided so as to face each other at inner wall portions 59 of both ends of this lattice, and 60 is an outdoor suction port provided in the rear case 53, which is provided on an upper side wall of the rear case 53. Has been. Reference numeral 61 denotes an outdoor outlet, which is provided on the lower side wall of the rear case 53. Reference numeral 62 denotes a ventilation hole formed in the wall 2, in which a duct pipe 63 of two layers is embedded to form a first outdoor side intake air passage 64 and an outdoor air outlet air passage 65. 66 is the wall 2 and the outdoor suction port 6
A second outdoor side intake air passage provided on the rear surface of the rear case 53 between the first and second outdoor side intake air passages 64, and also communicates with the outdoor outdoor suction port 60. .
Reference numeral 67 denotes a casing, which is made of, for example, Styrofoam, is mounted on the partition plate 10 and the rear case 53, and includes an exhaust blower 68 and an air supply blower 69. In addition,
The exhaust blower 68 and the air supply blower 69 are composed of a driving electric motor 32 having both drive shafts 33 and two cylindrical centrifugal multiblade impellers 25. Reference numeral 70 is an air cleaning filter provided on the outside air passage side of the heat exchanger 34, 71 is a mounting plate for fixing the ventilation fan 51 to the wall 2, and the duct pipe 63 is attached thereto. Reference numeral 72 denotes a shutter provided in the rear case 53, which is rotatable and arbitrarily seals either the first outdoor suction air passage 64 or the outdoor discharge air passage 65. Reference numeral 73 denotes an electric system part provided between the upper part of the outer casing 50, that is, the upper part of the casing 67 and the inner wall of the upper part of the rear case 53. Is configured. Reference numeral 76 denotes a terminal block provided in this electric system section, which is used for the drive motor 3
The power cord 77 to 2 is connected. 78 is the lid 7
5 is a screw for fixing the box body 74, 79 is a heat insulating material, which is internally provided on the inner wall of the front case 52 as shown in FIG.
For example, a plurality of flow straightening guides 80, which are made of styrofoam and are located in the indoor discharge port 55 and are opposed to the shaft rods 56 of the lattice 57, are provided at the bottom. The straightening guide has rounded corners, and the end guide 81 that is in contact with the front case 52 has an inclination that lowers the center of the indoor discharge port 55, and the center guide 82 other than this end is provided. Has a triangular shape and has a rectification and a guide for the discharge flow.

In the ventilation fan constructed as described above,
The mounting is performed by fixing a mounting plate 71 on which a duct pipe 63 is attached to the wall 2 surface having a ventilation opening 62, and hooking the rear case 53 of the ventilation fan 51 on this mounting plate.
Attach with screws not shown. Next, as shown in FIG. 8, the power cord 77 inserted through the wall 2 is connected to the electric system portion 73, and the front case 52 is attached to the rear case 53. Then, as the driving electric motor 32 is operated, the indoor air enters the casing 67 from the indoor side intake port 54 on the upper surface of the ventilation fan 51, passes through the electric motor 32 side, and is heat-exchanged by the heat exchanger 34. The air is exhausted from the outdoor outlet 61 to the outside.
On the other hand, the outdoor air flows from the outdoor suction port 60 to the casing 67.
After entering the inside, the heat is exchanged by the heat exchanger 34, and the air is supplied to the room through the indoor-side discharge port 55 on the lower surface of the ventilation fan 51. By accelerating and wrapping cold air (air supply) in the lower part of the adjustment guide 80, it mixes with warm air (room air) to cover the long-side grid 57 provided in the indoor discharge port 55. Further, air is supplied while covering the lattice 57 in the short side direction and covering the return pieces 58 on the inner walls at both ends of the lattice 57 with a mixed gas of warm air (indoor air). In addition, the electric system section 7
By arranging 3 in the upper corner of the outer casing 50,
The condensed water generated in the heat exchanger 34 does not enter the electric system.

[0015]

As described above, according to the present invention, the outer casing provided with the indoor suction port, the indoor discharge port, the outdoor suction port, and the outdoor discharge port, and the indoor side provided in the outer chassis. An exhaust passage communicating between the suction inlet and the outdoor discharge outlet, an air supply passage communicating between the outdoor suction inlet and the indoor discharge outlet, and a blower provided in the air supply passage and the exhaust passage A heat exchanger detachably provided at an intersection of the air supply passage and the exhaust passage, the indoor side inlet is provided on an upper wall of the outer casing, and the indoor outlet is provided on a lower wall. By providing the, the outside air discharged into the room becomes a downward airflow along the wall surface, without directly hitting the human body,
More comfort is improved.

Further, since the heat insulating material is attached to the inner wall of the outer casing and the rectifying guide which is formed integrally with the heat insulating material and is located inside the indoor discharge port is provided, the area of the indoor discharge port is reduced and Since the wind speed rises and the cool air is trapped in the lower part of the rectification guide, the indoor discharge port is covered by the mixed space of the cool air and the warm air in the room, so that the condensation does not occur at the indoor discharge port, and it can be used more effectively. Victory is improved.

Further, since the indoor discharge port is formed by a lattice composed of a plurality of axial rods having a streamlined cross-sectional shape, and the return pieces facing each other are projected on inner walls of both ends of the lattice,
A return phenomenon of outside air from the indoor discharge port occurs at both ends of the lattice, a space mixed with warm air in the room is formed, and dew condensation can be prevented.

[Brief description of drawings]

FIG. 1 is a mounting sectional view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of the present invention.

FIG. 3 is an exploded perspective view of a front case showing an embodiment of the present invention.

FIG. 4 is a sectional view of a flow straightening guide showing an embodiment of the present invention.

FIG. 5 is a cross-sectional view of an indoor discharge port showing an embodiment of the present invention.

FIG. 6 is a partial cross-sectional view of an indoor discharge port showing an embodiment of the present invention.

FIG. 7 is a sectional view of an end portion of the indoor discharge port according to the embodiment of the present invention.

FIG. 8 is a mounting perspective view showing an embodiment of the present invention.

FIG. 9 is an exploded perspective view of an electric system section showing an embodiment of the present invention.

FIG. 10 is a mounting cross-sectional view showing a conventional ventilation fan.

FIG. 11 is a perspective view showing a conventional heat exchanger of a ventilation fan.

[Explanation of symbols]

34 heat exchanger 50 outer casing 54 Indoor suction port 55 Indoor discharge port 56 axis rod 57 grid 58 Return Piece 60 Outdoor suction port 61 Outdoor outlet 68 Exhaust blower 69 Air supply blower 79 Thermal insulation 80 Rectification guide

Claims (3)

[Claims] 1. An outer casing provided with an indoor suction port, an indoor discharge port, an outdoor suction port, and an outdoor discharge port, and the indoor suction port and the outdoor discharge port provided in the outer casing. And an air supply passage that communicates between the outdoor suction port and the indoor discharge port, a blower provided in the air supply passage and the exhaust passage, the air supply passage, and the exhaust gas. A heat exchanger detachably provided at an intersection with the passage, wherein the indoor suction port is provided on the upper wall surface of the outer casing, and the indoor discharge port is provided on the lower wall surface. Ventilation fan. 2. A heat insulating material is attached to the inner wall of the outer casing,
The ventilation fan according to claim 1, further comprising a rectifying guide that is formed integrally with the heat insulating material and that is located inside the indoor discharge port. 3. The indoor discharge port is formed by a lattice composed of a plurality of axial rods having a streamlined cross-sectional shape, and return pieces facing each other are projected on inner walls of both ends of the lattice. The ventilation fan according to claim 1.