JP3019907B2 - Heat exchange type ventilation fan - 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 exchange ventilator for exhausting dirty air in a room, supplying fresh air outside the room to the room, and exchanging heat between the air.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of energy saving, houses which have high airtightness and high heat insulation have become mainstream. The demand for shaped ventilation fans is increasing.

Conventionally, this type of heat exchange type ventilation fan is shown in FIGS.
The configuration as shown in FIG. 9 was common. That is, 1
Reference numeral 01 denotes a main body, which is installed on a room wall 102 and a room 103
Inside a box 108 in which an outdoor suction port 105 and an outdoor discharge port 106 opened in the side of the outdoor 104 are communicated with the outdoor 104 through two openings 107 opened in the chamber wall 102, in a box shape having an open side. Outdoor discharge port 106 and room 103
And an air supply passage 110 connecting the outdoor suction port 105 and the room 103 are formed so as to intersect with each other. In this intersection, the element ventilation path 1 in one direction of a plurality of element ventilation paths provided alternately and intersecting therein is provided.
11 is connected to an exhaust passage 109, and an air supply passage 110 is connected to an element air passage 112 in the other direction, and a heat exchange element 113 for exchanging heat between air passing through the element air passages 111 and 112 is provided. It is installed. Body 1
01, an exhaust blade 115 is disposed inside a spiral exhaust casing 114 provided in an exhaust passage 109, and a spiral air supply casing 1 provided in an air supply passage 110.
An air supply fan 117 is provided inside the air supply 16 and a blower 119 equipped with a motor 118 for driving these blades is provided. The main body 1 is located on the indoor 103 side of the main body 101.
01 and an indoor discharge port 121 communicating with the exhaust passage 109 and an indoor discharge port 121 communicating with the air supply passage 110.
The louver 122 provided with the above is detachably mounted.

Further, an exhaust casing 1 inside the main body 101 is provided.
An operation switch 123 for operating / stopping the blower 119 is provided below the operation switch 14, and an operation cord 124 is connected to a lower end of the operation switch 123.
At the rear of the main body 101, two shutter openings 1 that match the outdoor suction port 105 and the outdoor discharge port 106 are provided.
A plate-like shutter 126 having an opening 25 is slidably provided in the left-right direction. When the shutter 126 is located at the right end when viewed from the front side, the outdoor suction port 105, the outdoor discharge port 106, and the shutter opening 125 When the outdoor suction port 105 and the outdoor discharge port 106 are opened and the shutter 126 is located at the left end, the outdoor suction port 105 and the outdoor discharge port 106
It is closed by. The shutter engaging portion 127 provided substantially at the center of the upper end of the shutter 126 includes:
One end of the return spring 128 is engaged with the main body engaging portion 129 provided on the upper right side of the back surface of the main body 101, the other end of the return spring 128 is engaged, and the shutter 126 is constantly biased to the right. . A wire 130 is engaged with the shutter engaging portion 127 of the shutter 126 so as to be pulled in a direction opposite to the return spring 128.
Is guided downward by a pulley 131 provided on the upper left side of the rear side of the main body 101 opposite to the main body engaging portion 129, and is engaged with the upper end of the rod 133 of the shutter driving device 132 provided on the lower side of the main body 101. ing. In this shutter driving device 132, the rod 133 moves up and down in conjunction with the operation / stop of the blower 119. When the blower 119 is stopped, the upper end of the rod 133 is positioned below, and the shutter 126 is connected to the wire. Pull at 130 to move it to the left end, and at the time of blower 119 operation,
With the upper end of the rod 133 positioned upward, the wire 13
By loosening 0, the shutter 126 is pulled to the right end by the return spring 128.

In the above configuration, when power is supplied to the blower 119 by operating the operation cord 124 of the operation switch 123, the exhaust blade 115 and the air supply blade 117 rotate, the shutter driving device 132 operates, and the shutter 126 operates. The outdoor suction port 105 and the outdoor discharge port 106 are opened by being drawn to the right end, and the dirty air in the room 103 is sucked in from the indoor suction port 120, passes through the element ventilation path 111 of the heat exchange element 113, and Exit 10
6 and is discharged to the outdoor 104 and the outdoor 10
The fresh air of No. 4 enters from the outdoor suction port 105 and is guided into the inside of the element ventilation passage 112 of the heat exchange element 113. When passing through the element ventilation path 112, heat is exchanged with the exhaust air, and the indoor discharge air is discharged. The air is supplied to the room 103 from the outlet 121, and the contaminated air in the cooled or heated room 103 is discharged to the outside 104, and heat exchange is performed between the air and the fresh air supplied to the outside 104. By doing so, the cooling and heating energy loss during ventilation of the room 103 was reduced.

[0006] The operation cord 124 of the operation switch 123
To stop the power supply to the blower 119,
The rotation of the exhaust blade 115 and the supply blade 117 is stopped, the shutter driving device 132 is operated, the shutter 126 is moved to the left end, the outdoor suction port 105 and the outdoor discharge port 106 are closed, and the outside air on the outdoor 104 side is released. 1 through the outdoor suction port 105 and the outdoor discharge port 106
03 was prevented from invading.

[0007]

In such a conventional heat exchange type ventilation fan, a shutter driving portion for driving the shutter 126 includes many components such as a return spring 128, a wire 130, a pulley 131, and a shutter driving device 132. Since the structure is complicated, it takes time and effort to assemble the shutter drive part, and in order to reliably open and close the shutter 126, the accuracy of each part such as the spring force and dimensions of these parts and the assembly It is necessary to ensure accuracy, and there has been a problem of increasing the number of assembling steps.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a heat exchange type ventilation fan capable of minimizing the number of parts of a shutter driving part and reducing the number of assembling steps.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a box-like interior having an open interior and an exterior suction port and an exterior discharge port which are open on the exterior side. A main body formed by intersecting an exhaust passage connecting the room and the outdoor discharge port and an air supply passage connecting the room and the suction port, provided at an intersection of the exhaust passage and the air supply passage; A heat exchange element for exchanging heat between air passing through these passages, and a spiral-type air supply provided in the air supply passage while an exhaust blade is disposed inside a spiral exhaust casing provided in the exhaust passage. An air supply blade was disposed inside the casing, and a blower equipped with a motor for driving these blades, an indoor suction port covering the opening of the main body and communicating with the exhaust passage, and an indoor discharge port communicating with the air supply passage were provided. Louver and the front Slidably provided on the rear surface of the main body,
A plate-shaped shutter for simultaneously opening and closing the outdoor suction port and the outdoor discharge port, and a rack unit provided in the shutter
A gear that meshes with the rack portion, an opening / closing motor that drives the shutter during operation in conjunction with the operation / stop of the blower , and a cover of the opening / closing motor and the teeth.
Reverse rotation of the gear between the car and the blower when the operation is stopped
The shutter and the outdoor suction port and the outdoor discharge
A return spring for closing the outlet is provided .

[0010]

According to the present invention, a rack portion formed on a shutter, an opening / closing motor, a gear provided on the opening / closing motor, a casing of the opening / closing motor, and the gear are provided.
When the operation of the blower is stopped, the gear is rotated in reverse to open the shutter.
Move back and close the outdoor suction port and outdoor discharge port
By composing the shutter driving part with simple parts such as a spring , the number of parts of the shutter driving part can be greatly reduced, the workability of assembling can be greatly improved, and the shutter driving part has a simple structure. That is, the shutter can be reliably opened and closed without increasing the accuracy of individual components and the accuracy of assembly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, reference numeral 1 denotes a main body,
A box having a box-like shape with the interior 3 side opened, and an outdoor suction port 5 and an outdoor discharge port 6 opening on the side of the outdoor 4 and communicating with the exterior 4 through two openings 7 opening on the chamber wall 2. An exhaust passage 9 connecting the outdoor discharge port 6 and the room 3 inside the body 8;
Further, an air supply passage 10 connecting the outdoor suction port 5 and the room 3 is formed so as to intersect with each other. In this intersection, an element air passage 11 in one direction of a plurality of element air passages alternately provided therein is provided in the exhaust passage 9 and an air supply passage 10 is provided in the element air passage 12 in the other direction. To each other,
A heat exchange element 13 for exchanging heat between the air passing through the element ventilation paths 11 and 12 is mounted. Body 1
Inside, the exhaust blades 15 are arranged inside the spiral exhaust casing 14 provided in the exhaust passage 9, and the air supply blades 17 are arranged inside the spiral air supply casing 16 provided in the air supply passage 10, A blower 19 provided with a motor 18 for driving these blades is provided. A louver 22 which covers an opening of the main body 1 and has an indoor suction port 20 communicating with the exhaust passage 9 and an indoor discharge port 21 communicating with the air supply passage 10 is detachably mounted on the room 3 side of the main body 1. Have been.

An operation switch 23 for operating / stopping the blower 19 is provided below the exhaust casing 14 inside the main body 1. An operation cord 24 is provided at a lower end of the operation switch 23. Are linked. On the back surface of the main body 1, a plate-like shutter 25 for opening and closing the outdoor suction port 5 and the outdoor discharge port 6 is slidably provided in the left-right direction. The shutter 25 has a shutter opening 26 that matches the outdoor suction port 5. When the shutter 25 is located at the right end when viewed from the front side, the outdoor suction port 5 matches the shutter opening 26. With
When the left end of the shutter 25 is located on the right side of the outdoor discharge port 6, the outdoor suction port 5 and the outdoor discharge port 6 are open, and when the shutter 25 is located on the left end, the outdoor suction port 5 and the outdoor discharge port 6 are opened. The shutter is closed by the shutter 25. A rack 27 is formed substantially at the center of the upper end of the shutter 25.
Gear 2 provided on the opening / closing motor 28 disposed on the upper part of the back of the gear 2
9 are meshed. The opening / closing motor 28 is connected to the blower 19
When the blower 19 is stopped, the gear 29 is rotated by a return spring 30 provided between the jacket of the opening / closing motor 28 and the gear 29 when the blower 19 is stopped. It is urged in the direction B shown in FIG.
Move the shutter 25 to the left as viewed from the front,
During the operation of the blower 19, the opening / closing motor 28 is driven to rotate the gear 29 in the direction A to move the shutter 25 to the right end.

In the above configuration, when power is supplied to the blower 19 by operating the operation cord 24 of the operation switch 23, the exhaust blade 15 and the air supply blade 17 rotate, the gear 29 rotates in the direction A, and the shutter 25 rotates. Is moved to the right end, the outdoor suction port 5 and the outdoor discharge port 6 are opened, and the dirty air in the room 3 is sucked from the room suction port 20, passes through the element ventilation path 11 of the heat exchange element 13, and While being discharged from the discharge port 6 to the outdoor 4, fresh air in the outdoor 4 is sucked from the outdoor suction port 5 and guided into the element ventilation path 12 of the heat exchange element 13, and when passing through the element ventilation path 12, The heat is exchanged with the discharged air, and the air is supplied to the room 3 from the indoor discharge port 21. The dirty air in the cooled or heated room 3 is discharged to the outside 4 and the air is discharged from the room 3. And by heat exchange with the fresh outdoor air 4 to supply, it is possible to reduce the heating and cooling energy loss during indoor 3 ventilation.

When the power supply to the blower 19 is stopped by operating the operation cord 24 of the operation switch 23, the rotation of the exhaust blade 15 and the air supply blade 17 is stopped.
The gear 29 is rotated in the direction B by the return spring 30, the shutter 25 is moved to the left end, the outdoor suction port 5 and the outdoor discharge port 6 are closed, and the outside air on the outdoor 4 side is discharged to the outdoor suction port 5
Further, it is possible to prevent the intrusion into the room 3 through the outdoor discharge port 6.

As described above, according to the heat exchange type ventilation fan of the embodiment of the present invention, the rack portion 27 formed on the shutter 25, the opening / closing motor 28, the gear 29 provided on the opening / closing motor 28, and the jacket of the opening / closing motor 28 Blower between gear 29
When the operation of the shutter 19 is stopped, the gear 29 is rotated in the reverse direction and the shutter 2 is rotated.
5 and close the outdoor suction port 5 and the outdoor discharge port 6
By composing the shutter driving part with simple parts together with the return spring 30 , the number of parts of the shutter driving part can be greatly reduced, the assembling workability can be greatly improved, and the shutter driving part can be simplified. The shutter 25 can be reliably opened and closed without improving the accuracy of individual parts and the accuracy of assembly, and the number of processing and assembling steps can be greatly reduced.

[0017]

As is apparent from the above embodiments, according to the present invention, the rack portion formed on the shutter, the open / close motor, the gear provided on the open / close motor, the gear and the open
By composing the shutter driving part with simple parts including a return spring provided between the closed motors, the number of parts of the shutter driving part is greatly reduced, and the heat which has the effect of greatly reducing the number of assembling steps can be reduced. An exchange type ventilation fan can be provided.

[Brief description of the drawings]

FIG. 1 is a main part rear view showing a state in which an outdoor suction port and an outdoor discharge port of a heat exchange type ventilation fan according to one embodiment of the present invention are closed by a shutter.

FIG. 2 is a rear view of an essential part of the heat exchange type ventilation fan, showing a state where an outdoor suction port and an outdoor discharge port are opened.

FIG. 3 is an enlarged view showing a rack portion, a gear, and an opening / closing motor when the outdoor suction port and the outdoor discharge port of the heat exchange type ventilation fan are closed.

FIG. 4 is an enlarged view showing a rack portion, a gear, and an opening / closing motor when the outdoor suction port and the outdoor discharge port of the heat exchange type ventilation fan are opened.

FIG. 5 is a perspective view showing a state in which a louver of the heat exchange type ventilation fan is removed.

FIG. 6 is a cross-sectional view showing an installation state of the heat exchange type ventilation fan.

FIG. 7 is a perspective view showing a state in which a louver of a conventional heat exchange type ventilation fan is removed.

FIG. 8 is a cross-sectional view showing an installation state of the heat exchange type ventilation fan.

FIG. 9 is a rear view showing a state in which an outdoor suction port and an outdoor discharge port of the heat exchange type ventilation fan are closed by a shutter;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body 3 Indoor 4 Outdoor 5 Outdoor suction port 6 Outdoor discharge port 8 Box 9 Exhaust passage 10 Air supply passage 13 Heat exchange element 14 Exhaust casing 15 Exhaust blade 16 Air supply casing 17 Air supply blade 18 Motor 19 Blower 20 Indoor air inlet DESCRIPTION OF SYMBOLS 21 Indoor discharge port 22 Louver 25 Shutter 27 Rack part 28 Opening / closing motor 29 Gear 30 Return spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 7/08 101

Claims (1)

(57) [Claims] An exhaust passage connecting the room and the outdoor discharge port inside a box body having a box shape opening on the indoor side and having an outdoor suction port and an outdoor discharge port open on the outdoor side face communicating with the outdoor; A heat exchange that is provided at an intersection of an air supply passage connecting the room and the suction port and that is provided at an intersection of the exhaust passage and the air supply passage to exchange heat between air passing through these passages. An element and an exhaust blade disposed inside a spiral exhaust casing provided in the exhaust passage,
An air supply blade disposed inside a spiral air supply casing provided in the air supply passage, a blower including a motor that drives these blades, and an indoor suction port that covers an opening of the main body and communicates with an exhaust passage, A louver having an indoor discharge port communicating with the air supply passage, a plate-shaped shutter slidably provided on the back surface of the main body, and simultaneously opening and closing the outdoor suction port and the outdoor discharge port; and a shutter provided on the shutter. Lucky
A click unit, a gear meshing with the rack portion provided in conjunction with the operation and stop of the blower, and a closing motor for driving the shutter during operation, the outer human prior to said opening and closing motor
When the operation of the blower is stopped between the gear and the gear, the gear is
Reversely rotate the outdoor suction port by the shutter and
A heat exchange type ventilation fan equipped with a return spring that closes the outdoor discharge port .