JP2912815B2 - Simultaneous supply and exhaust 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 simultaneous supply / discharge type ventilation fan mainly used for ventilation of a house or the like.

[0002]

2. Description of the Related Art In recent years, houses have become more airtight, and as a result, the need for ventilation has increased, and simultaneous supply and exhaust has been performed to supply air in proportion to the amount of air exhausted by ventilation to stabilize indoor pressure. The demand for the shape ventilation fan is increasing.

Conventionally, as shown in FIGS. 5 and 6, a simultaneous supply / discharge type ventilation fan of this type is installed in an opening 102 provided in a room wall 101, and has a cylindrical shape communicating a room 103 and an outdoor 104. An exhaust ventilation passage 10 is provided inside the ventilation fan body 105.
7 and an air supply passage 108 are defined by a main body partition plate 106, an exhaust air blower 109 is provided in the exhaust air passage 107, and an air supply blower 110 is provided in the air supply ventilation passage 108.
Are provided for each. The ventilation fan body 10
The shutter unit 112 described below is provided in the indoor-side opening 111 of No. 5.

In the shutter unit 112, the inside of a substantially cylindrical shutter frame 113 whose outer periphery is fitted to the inner periphery of the ventilation fan main body 105 is divided into a shutter exhaust ventilation passage 115 and a shutter air supply ventilation passage 116. , And a shutter partition plate 114, and the shutter partition plate 1
14 to the main body partition plate 106 of the ventilation fan main body 105.
The shutter exhaust air passage 115 communicates with the exhaust air passage 107, and the shutter air supply air passage 116 communicates with the air supply air passage 108. Further, inside the shutter frame 113, a shutter support pin 11 whose both ends are protruded inward from the inner peripheral portion of the shutter frame 113 and parallel to the shutter partition plate 114.
7 and rotatably supported by the shutter exhaust air passage 11
5 and a plurality of shutter plates 118 for opening and closing the shutter air supply passage 116. These shutter plates 118 are connected to the shutter exhaust air passage 115 side and the shutter air supply passage 115 through through holes 119 provided in the shutter partition plate 114. They are connected by a shutter connecting rod 125 located on the side of the air passage 116.

[0005] A square flange 12 along the chamber wall 101 is provided around the end of the ventilation fan body 105 on the side of the chamber 103.
0 is extended outward, and an outer peripheral portion of the flange portion 120 covers an indoor side opening portion 111 of the ventilation fan main body 105, and has a suction port 121 communicating with a shutter exhaust ventilation passage 115, and a shutter air supply port. A grill 123 having a discharge port 122 communicating with the ventilation passage 116 is provided detachably. On the lower surface of the grill 123 on the shutter exhaust ventilation path 115 side, the inside of the grill 123 and the interior 103
Is provided, and an operation lever portion 126 provided on the shutter connecting rod 125 protrudes from the lower end of the grill 123 into the room 103 through the guide hole 124.

In the above-described configuration, when the shutter plate 118 is opened and the exhaust blower 109 and the air supply blower 110 are operated, the room air is sucked by the exhaust blower 109 and the shutter exhaust ventilation passage 115 and the shutter exhaust ventilation passage 115 from the inlet 121 of the grill 123. Exhaust port 1 after passing through exhaust ventilation passage 107
At the same time as the air is discharged from the outside 27 to the outdoor 104, the outside air is sucked by the air supply blower 110, passes through the air supply opening 128, passes through the air supply passage 108 and the shutter air supply passage 116, and passes through the discharge opening 122 of the grill 123 The room 103 is supplied with air. In addition, when the exhaust blower 109 and the supply blower 110 are stopped, by closing the shutter plate 118, it is possible to prevent outside air from entering the room 103.

[0007]

In such a conventional simultaneous supply / discharge type ventilation fan, the shutter connecting rod 125 is connected to the shutter plate 118 on the shutter exhaust ventilation passage 115 side through the through hole 119 of the shutter partition plate 114 and the shutter air supply. Since the shutter plate 118 on the side of the ventilation passage 116 is connected, when the shutter plate 118 is opened and closed, the operation of the shutter connection rod 125 is as shown in FIG. The shutter connecting rod 125 moves in an arc centered on the shutter support pin 117, and the shutter connecting rod 125 moves in the left, right, front and rear directions.
The shutter connecting rod 125 must be prevented from coming into contact with the shutter partition plate 114 when the shutter plate 118 is opened and closed by increasing the inner dimension of the through hole 119 by an amount corresponding to the movement of the through hole 119 in the front-rear direction. 119
There was a problem that air supply and exhaust were mixed through.

Also, the shutter connecting rod 125 is
By increasing the inner dimension of the guide hole 124 of the grill 123 by the amount of movement in the front-rear direction, the shutter plate 11
8 Operating lever 12 of shutter connecting rod 125 when opening and closing
6 must be prevented from coming into contact with the grill 123, so that room air is sucked into the shutter exhaust ventilation passage 115 from the guide hole 124, and a guide hole is provided on the shutter supply air passage 116 side of the grill 123. Through this guide hole, the operation lever of the shutter connecting rod is inserted into the room 103.
In the case of projecting into the room 103, a part of the outside air supplied to the room 103 from the discharge port 122 through the shutter air supply passage 116 is discharged into the room 103 from the guide hole,
There is a problem that the chamber wall 101 around the guide hole is soiled.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is possible to prevent air supply and exhaust air from being mixed through a through hole of a shutter partition plate with a simple structure without impairing the opening / closing operation of the shutter plate. A first object is to provide a simultaneous supply / discharge type ventilation fan.

A second object is that room air is sucked from a guide hole for guiding an operation lever portion for operating a shutter connecting rod to the room side, or outside air is discharged from the guide hole into the room, and The present invention is to prevent the room wall around the vehicle from being stained.

[0012]

A first means for achieving the first object of the present invention is to exhaust the inside of a cylindrical portion inserted and installed in an opening formed in a chamber wall by a main body partition plate. A ventilation fan main body partitioned into a ventilation passage and an air supply ventilation passage, and a shutter exhaust ventilation passage communicating with the exhaust ventilation passage by a shutter partition plate inside a substantially cylindrical shutter frame communicating with the indoor side of the ventilation fan main body; And a plurality of shutter air supply passages that are defined and partitioned into shutter air supply passages that communicate with the air supply air passages, and that are rotatably supported by the inner peripheral portion of the shutter frame to open and close the shutter exhaust air passages and the air supply air passages, respectively. A shutter unit provided with a shutter connecting rod for connecting and linking these shutter plates through a through hole provided in the shutter partition plate. A connecting portion between the plate and the shutter connecting rod is provided on one of the shutter plate and the shutter connecting rod, and a long hole-shaped connecting hole whose major diameter side is parallel to the shutter partition plate, and a connecting support pin provided on the other side. And a simultaneous supply / discharge type ventilation fan that opens and closes the shutter plate by moving the shutter connecting rod in a direction perpendicular to the shutter partition plate.

[0015] A second means for achieving the second object is that an outer peripheral portion of a horn-shaped flange portion extending outward from the outer peripheral portion of the indoor side of the ventilation fan main body along the chamber wall is provided. A substantially rectangular cylindrical main body frame is provided, and is provided at one end of an operation plate rotatably supported along the flange portion on the front surface of the flange portion in a direction orthogonal to the moving direction of the shutter connecting rod. The operation lever portion is made to face the indoor side through a guide hole opened in the wall portion of the main body frame, and the first lever engagement portion provided near the other end of the operation plate is connected to the shutter connection rod. A large rib having an arc shape centered on the support portion of the operation plate, and a small rib having an inner diameter smaller than the inner diameter of the large rib so as to cover the guide hole. At the front of the flange,
A second lever engaging portion slidably engaged with an arc-shaped guide groove formed between these ribs is provided on the operation plate, and the shutter connection is performed by operating the operation lever from the indoor side. It has a simultaneous supply and exhaust type ventilation fan that operates a rod.

[0016]

According to the first aspect of the present invention, the connecting portion between the plurality of shutter plates and the shutter connecting rod supported by the inner peripheral portion of the shutter frame so as to be openable and closable comprises the shutter plate and the shutter connecting rod. Is provided on one side, and its long diameter side is configured by engaging a long hole-shaped connection hole parallel to the shutter partition plate and a connection support pin provided on the other side, so that the shutter connection rod is attached to the shutter partition plate. Thus, the inner diameter of the through hole of the shutter partition plate through which the shutter connecting rod passes can be made slightly larger than the outer dimension of the shutter connecting rod.

Further, according to the configuration of the second means, the gap between the guide hole and the operation lever portion is covered by the large rib and the small rib, and the room air is sucked from the guide hole into the shutter exhaust ventilation passage. It is possible to prevent part of the outside air supplied to the room through the shutter air supply passage from being discharged into the room through the guide holes.

[0020]

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

As shown in the drawing, an exhaust ventilation passage 7 and an air supply ventilation are provided in a cylindrical ventilation fan body 5 which is installed in an opening 2 provided in a room wall 1 and communicates the room 3 and the outside 4. The passage 8 is defined by a main body partition plate 6, and the exhaust ventilation passage 7 is provided with an exhaust blower 9, and the air supply ventilation passage 8 is provided with an air supply blower 10. Further, a shutter unit 12 described below is provided in the indoor opening 11 of the ventilation fan main body 5.

The shutter unit 12 has a substantially cylindrical shutter frame 13 whose outer peripheral portion is fitted to the inner peripheral portion of the ventilation fan main body 5, into a shutter exhaust ventilation passage 15 and a shutter air supply ventilation passage 16. , A shutter partition plate 14 is formed, and the rear end of the shutter partition plate 14 is
By contacting the front end of the main body partition plate 6 of the ventilation fan main body 5, the shutter exhaust air passage 15 is connected to the exhaust air passage 7.
In addition, the shutter air supply passage 16 communicates with the air supply passage 8. Also, inside the shutter frame 13,
Both ends thereof are rotatably supported by a shutter support pin 17 protruding inward from an inner peripheral portion of the shutter frame 13 and in parallel with the shutter partition plate 14 to provide a shutter exhaust air passage 15 and a shutter air supply air passage. A plurality of shutter plates 18 for opening and closing the shutter 16 are provided, and these shutter plates 18 are provided on the shutter exhaust air passage 15 side and the shutter air supply air passage 16 side through through holes 19 provided in the shutter partition plate 14. It is connected by the shutter connecting rod 25 located. The connection portion 26 between the shutter plate 18 and the shutter connection rod 25 is formed by engaging a connection hole 29 of the shutter connection rod 25 with a connection support pin 28 protruding from a shutter flange 27 provided on the shutter plate 18. The connection hole 29 is formed in a long hole shape whose major diameter side is formed in a direction parallel to the shutter partition plate 14, and a connection support pin 28 is slidably provided in the major diameter direction of the connection hole 29, Shutter connecting rod 2
The shutter 5 is configured to open and close the shutter plate 17 by sliding in a direction orthogonal to the shutter partition plate 14.

A rectangular flange portion 30 extends outward along the chamber wall 1 around the end of the ventilation fan main body 5 on the indoor 3 side. A substantially square cylindrical main body frame 31 having an open front is integrally formed.
Further, on the indoor 3 side of the ventilation fan main body 5, a suction port 33 which covers the indoor side opening 32 of the main body frame 31 and communicates with the shutter exhaust ventilation path 15 and a discharge port 34 which communicates with the shutter air supply ventilation path 16 are provided. The provided grill 35 is provided detachably. An operation plate 37 is rotatably supported along the flange portion 30 on a lever support pin 36 protruding from the lower portion of the front surface of the flange portion 30 on the shutter exhaust ventilation path 15 side toward the interior 3 side. . An operation lever portion 38 is provided at a lower end portion of the operation plate 37, and the operation lever portion 38 is provided in the guide hole 3 opened in the lower wall portion of the main body frame 31.
It faces the room 3 through 8A. Operation plate 3
7, a first lever engaging portion 39 is provided near the upper end portion, and the first lever engaging portion 39 is engaged with a shutter engaging portion 40 provided on the shutter connecting rod 25. . A lever support pin 36 is provided on the back surface of the operation plate 37.
And a large arc-shaped rib 41 protruding from the front surface of the flange portion 30 toward the interior 3 so as to cover the guide hole 38A.
And a second lever engaging portion 44 slidably engaged with a guide groove 43 formed between the small rib 42 having an inner diameter smaller than the inner diameter of the large rib 41. By operating the unit 38 from the room 3 side, the shutter connecting rod 25 is operated.

In the above configuration, when the operation lever 38 is moved from the room 3 side to the shutter partition plate 14 side, the shutter connecting rod 25 is moved via the first lever engagement portion 39 and the shutter engagement portion 40 to the shutter partition. At right angles to the plate 14 and the shutter engaging portion 40 moves to the opposite side to the shutter partition plate 14, the shutter connecting rod 25
With the movement of the connection support pin 28, the connection hole 29
Slides from the outdoor 4 side to the indoor 3 side, and the shutter plate 18 rotates about the shutter support pin 17 as a fulcrum to open the shutter exhaust air passage 15 and the shutter air supply air passage 16.

When the operation lever 38 is moved to the side opposite to the shutter partition plate 14, the first lever engagement portion 39
And the shutter connecting rod 25 is perpendicular to the shutter partition plate 14 via the shutter engaging portion 40, and
The shutter engaging portion 40 moves to the shutter partition plate 14 side, and with the movement of the shutter connecting rod 25, the connecting support pin 28 slides from the indoor 3 side of the connecting hole 29 to the outdoor 4 side, and the shutter is moved. The plate 18 rotates about the shutter support pin 17 as a fulcrum, and the shutter exhaust air passage 1
5 and the shutter air supply passage 16 will be closed.

As described above, according to the simultaneous supply / discharge type ventilation fan of the embodiment of the present invention, a plurality of shutter plates 18 for opening and closing the shutter exhaust ventilation passage 15 and the shutter supply ventilation passage 16 are provided.
And these shutter plates 18 are connected to the shutter partition plate 14.
The connecting portion 26 with the shutter connecting rod 25 connected through the through hole 19 is provided on the shutter connecting rod 25 so as to engage with the connecting supporting pin 28 protruding from the shutter plate 18 and the connecting supporting pin 28, The major axis side has a simple structure including a long hole-shaped connection hole 29 parallel to the shutter partition plate 14, and the shutter connection rod 25 can move in a direction orthogonal to the shutter partition plate 14, so that the shutter can be moved. The inner diameter of the through hole 19 of the partition plate 14 only needs to be large enough to allow the shutter connecting rod 25 to pass through and move smoothly, and therefore, the supply of the shutter plate 18 with a simple structure without impairing the opening and closing operability. Air and exhaust can be prevented from mixing through the through holes 19 of the shutter partition plate 14.

The gap between the guide hole 38A and the operation lever 38 is covered by the large rib 41 and the small rib 42, and the room air is sucked into the shutter exhaust passage 15 from the guide hole 38A. Can be prevented.

A guide groove 43 is provided on the back of the operation plate 37.
Is provided with the second lever engaging portion 44 which is slidably engaged with the operating plate 37, so that when operating the operating lever portion 38, the operating plate 37 is smoothly rotated while being guided by the guide groove portion 43. Thus, the operability of opening and closing the shutter plate 18 can be improved.

A connecting support pin 28 constituting a connecting portion 26 between the shutter plate 18 and the shutter connecting rod 25 is connected to the shutter plate 18, and a connecting hole 29 is connected to the shutter connecting rod 25.
However, there is no difference in the operation and effect even if the provision side is replaced. In this embodiment, an operation plate 37 is provided on the shutter exhaust ventilation passage 15 side of the flange portion 30, and an operation lever portion 38 of the operation plate 37 is provided in a guide hole 38 opened in the lower wall of the main body frame 31.
A, it is made to face the room 3 side, but when these are provided on the shutter air supply passage 16 side, one of the outside air supplied to the room 3 from the discharge port 34 through the shutter air supply passage 16 is provided. The part can be prevented from being discharged from the guide hole into the room 3.

[0038]

As is apparent from the above embodiments, according to the present invention, there are provided a plurality of shutter exhaust ventilation passages and a plurality of shutter supply / reception ventilation passages formed by partitioning the inside of a shutter frame by a shutter partition plate. A shutter plate and a connecting portion of a shutter connecting rod for connecting and linking these shutter plates through the through holes of the shutter partition plate are provided on one of the shutter plate and the shutter connecting bar, and a long hole whose major diameter side is parallel to the shutter partition plate. Since it is configured by engaging a connection hole of a shape and a connection support pin provided on the other side,
The shutter connecting rod can move in the direction perpendicular to the shutter partition plate, so that the size of the through-hole only needs to be slightly larger than the outer dimensions of the shutter connecting rod, and air supply and exhaust are performed through this through-hole. It is possible to provide a simultaneous supply / discharge type ventilation fan that can prevent mixing with a simple structure.

Further, a guide hole opened in the main body frame such that an operation lever portion provided on an operation portion which is operated by engaging with the shutter connecting rod faces the indoor side, and a gap between the operation lever portion and the guide hole. Room air is sucked in from the guide hole by the arc-shaped large ribs and small ribs protruding from the front surface of the flange surface so as to cover the hole, or outside air is discharged from the guide hole into the room, and The surrounding wall can be prevented from being stained. Further, since the second lever engaging portion provided on the operation plate is slidably engaged with the guide groove formed between the large rib and the small rib, the operation plate is operated when the operation lever is operated. Can smoothly rotate, and the operability of opening and closing the shutter plate can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a shutter unit of a simultaneous supply / discharge type ventilation fan according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an installation state of the simultaneous supply / discharge type ventilation fan;

FIG. 3 is a front view showing a state where a grill 35 of the simultaneous supply / discharge type ventilation fan is removed.

FIG. 4 is a perspective view of an operation plate of the simultaneous supply / discharge type ventilation fan.

FIG. 5 is a cross-sectional view showing an installation state of a conventional simultaneous supply / discharge type ventilation fan;

FIG. 6 is a cross-sectional view of a shutter unit of the simultaneous supply / discharge type ventilation fan.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Room wall 2 Opening 5 Ventilation fan main body 6 Main body partition plate 7 Exhaust ventilation passage 8 Air supply ventilation passage 12 Shutter unit 13 Shutter frame 14 Shutter partition plate 15 Shutter exhaust ventilation passage 16 Shutter supply ventilation passage 18 Shutter plate 19 Through hole 25 Shutter connecting rod 26 connecting part 28 connecting support pin 29 connecting hole 31 body frame 37 operating plate 38 operating lever part 38A guide hole 39 first lever engaging part 40 shutter engaging part 41 large rib 42 small rib 43 guide groove part 44 first 2 lever engaging part

Claims (2)

(57) [Claims] 1. A ventilation fan main body in which an inside of a cylindrical portion inserted and installed in an opening portion opened in a room wall is partitioned into an exhaust air passage and an air supply air passage by a main body partition plate, and an indoor side of the ventilation fan main body. in the substantially cylindrical shutter frame inside the shutter partition plate communicating said shutter exhaust air passage communicating with the exhaust air passage, and the air supply ventilation passage section formed in the shutter supply air passage communicating with said shutter frame Inner circumference
A is rotatably supported by providing a plurality of shutter plates for opening and closing respectively the shutter exhaust air passage and the air supply ventilation passage, these shutter plates, causing interlockingly connected through a through hole provided in said shutter dividing plate and a shutter unit having a shutter <br/> over connecting rods, said sheet
The connection between the shutter plate and the shutter connection rod is
Provided on one of the shutter plate and shutter connecting rod, and its length
Elongated connection hole whose diameter side is parallel to the shutter partition plate
And a connecting support pin provided on the other side.
A simultaneous supply / discharge type ventilation fan that opens and closes the shutter plate by moving the shutter connecting rod in a direction orthogonal to the shutter partition plate. 2. From the outer periphery of the indoor side end of the ventilation fan body to the room wall.
Along the outer periphery of the angular flange that extends outward along
A rectangular tubular main body frame is provided, and the shutter
This flange is mounted on the front of the rod
At one end of the operation plate supported rotatably along the
A guide that opens the operating lever part on the wall of the body frame
While facing the guide side through the hole, the operation plate
The first lever engaging portion provided near the other end is
Engage with the shutter engaging part provided on the shutter connecting rod,
An arc-shaped large rib centered on the support portion of the operation plate; and
And a small rib having an inner diameter smaller than the inner diameter of the large rib
From the front of the flange so as to cover the guide hole.
An arcuate guide groove formed between these ribs
A second lever engagement portion slidably engaged with the operation plate is provided on the operation plate.
Operating the operation lever from the indoor side
The simultaneous supply / discharge type ventilation fan according to claim 1 , wherein the shutter connection rod is operated .