JP3045900B2 - 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 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 necessity of ventilation has been increasing. Above all, a heat exchange type ventilation fan for recovering heat of air exhausted from a room to a room side through a heat exchanger is provided. Is becoming the mainstream of ventilation fans.

[0003] The heat exchange type ventilation fan requires a shutter on the back of the main body in order to shut off indoor air and outdoor air when not operating, and must be opened and closed by a pull string operation.

[0004] For this reason, this type of heat exchange type ventilation fan has conventionally been configured as shown in Japanese Utility Model Publication No. 63-116834. Hereinafter, the configuration will be described with reference to FIGS.

[0005] As shown in the figure, a connection pipe 102 for air supply and a connection pipe 103 for exhaust are mounted on the back of a mounting plate 101 mounted on the indoor wall so as to be embedded in the wall, and on the front. The main body 104 and the main body 1
A louver 105 is attached to the front of the device 04.
Inside the main body 104 and the louver 105, a heat exchanger 106 and a fan casing 107 are incorporated. The fan casing 107 has an air supply blower 108 on the mounting plate 101 side and an exhaust blower 109 on the louver 105 side. ing. An elastic member 1 is provided on a shutter 110 slidably mounted in a gap formed between the inner surface of the back surface of the main body 104 and the back surface of the fan casing 107.
11 is attached, and the other end of the elastic member 111 is attached to the main body 10.
4, and one end of a drawstring 113 of a series of drawstring devices constituted by a drawstring 113 including an interlock mechanism 112 is connected to the shutter 110.

In the above configuration, the outdoor air is sucked in by the air supply blower 108 through the air supply connection pipe 102, is sucked into the room through the heat exchanger 106, and the indoor air is sucked in by the exhaust air blower 109, and is connected to the heat exchanger 106 and the exhaust connection. Although the air is exhausted to the outside through the pipe 103, when the operation is stopped, the shutter 11 is moved by the elastic member 111.
0, the ventilation port 114 on the back of the main body 104 is closed, and when starting the operation, the shutter 110 is slid by the drawstring 113 so that the ventilation port 11 on the back of the main body 104 is closed.
4 was opened and the position was held by the interlock mechanism 112.

[0007]

In such a conventional heat exchange type ventilation fan, since the shutter 110 is slid in the gap at the back of the main body 104, when the product is mounted on the wall surface, slight distortion of the wall surface causes the product. The main body 104 is distorted,
The shutter 110 sometimes stopped moving. Also,
In a cold region, there is a problem that moisture attached to the shutter 110 freezes and the shutter 110 becomes difficult to move.

An object of the present invention is to provide a heat exchange type ventilation fan having a shutter which can be reliably opened and closed.

[0009]

In order to achieve the above object, a heat exchange type ventilation fan according to the present invention has a first means which comprises: an air supply blower provided in an air supply passage for supplying outdoor air into a room; An exhaust blower provided in an exhaust passage for exhausting indoor air to the outside, a casing provided with a heat exchanger for exchanging heat between indoor air and outdoor air, and communicating with the air supply passage and the exhaust passage. A main body provided with an air supply port and an air exhaust port arranged side by side on the left and right, two shutters pivoting about a pivot so as to open and close the air supply port and the air exhaust port provided on the main body, and this shutter A gear provided on each shutter so that the two shutters interlock with each other in a tooth shape outside the shaft support portion,
Through an interlock mechanism provided on the one side of the shutter
A pull cord device having a drawstring that is coupled to the coupling portions, before <br/> SL two shutter is always provided between the connecting portion and the main body so as to close the air inlet and outlet wherein an elastic member
Provided in the main body, constituting the allowed to release to open the two shutters simultaneously with the operation of the drawstrings.

[0010] The second means is one to pull string and communication
It has a connecting part for connecting the connecting rod, and the other side has an air supply port or exhaust port.
A shutter is provided to open and close the vent, and the middle part is
Shutter rotatably provided via
The other end of the connecting rod has a connecting portion to be connected, and the other end has an exhaust
A shutter section that opens and closes the mouth or air supply port is provided.
And a shutter rotatably provided via a shaft support.
Provided in the main body, the shutters are always the exhaust port and air supply
Bullets provided between the connecting part and the main body to close the mouth
And a conductive member .

The third means is substantially a propeller shape and has both sides.
Form a shutter part to open and close the air supply and exhaust ports on the side ,
One piece that is provided on the main body with a pivotal support part in the center part and rotatable
Shutter and a shutter connected to the shutter
And the air supply and exhaust ports
Bullets provided between the shutter and the body to close
And a conductive member .

Further, the fourth means is provided with an air supply port and an exhaust port.
Each has a shutter part that opens and closes, and a gear is formed on the outer periphery
The two shutters and the gears of these two shutters
Is fixed to the body by forming the tooth profile that
The fixed tooth member meshes with the gears of the two shutters
The tooth profile is formed in a straight line, and the two
Slidable on the body with two shutters interposed
Sliding tooth member provided on the vehicle and connected to the sliding tooth member
Provided between the sliding tooth profile member and the main body.
And an elastic member for always closing the shutter.
For example, the solid of the shutter by the sliding of the sliding toothed member
It is configured to rotate and move on the fixed tooth member .

[0013]

According to the first aspect of the present invention, when the drawstring is pulled at the start of driving, the drawstring is connected.
One shutter rotates. Then, so that the gear provided on the shutter also other shutters meshed rotates in conjunction, ventilators with two shutter is opened is operated.

According to the configuration of the second means, when the drawstring is pulled at the start of the operation, the two shutters connected to the drawstring via the connecting portion rotate around the fulcrum, and the shutters are opened. And the ventilation fan is operated.

According to the configuration of the third means, when the drawstring is pulled at the start of operation, one shutter to which the drawstring is connected rotates around the fulcrum, the shutter is opened, and the ventilation fan is opened. Will be driven.

According to the configuration of the fourth means, when the drawstring is pulled at the start of operation, the sliding tooth member slides, and the gear meshing with the fixed tooth member is rolled on the fixed tooth member. The position of the shutter having gears is changed to open the shutter, and the ventilation fan is operated.

[0017]

【Example】

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. As shown in the figure, an air supply connection pipe 2 and an exhaust connection pipe 3 are arranged side by side on the back surface of a mounting plate 1 mounted on an indoor wall with a space therebetween, and the mounting plate 1 is mounted on a front surface of the mounting plate 1. A main body 6 having an air supply port 4 and an air exhaust port 5 communicating with an air supply connection pipe 2 and an exhaust connection pipe 3 provided on the plate 1 is provided, and a louver 7 is attached to a front surface of the main body 6. .

A heat exchanger 8 and a fan casing 9 are incorporated inside the main body 6 and the louver 7, and the fan casing 9 has an air blower 10 on the mounting plate 1 side and an exhaust blower on the louver 7 side. 11 and the air supply passage of the air supply blower 10 is connected to the air supply port 2 through the heat exchanger 8.
The exhaust passage of the exhaust blower 11 is provided so as to exchange heat with supply air passing through the heat exchanger 8, and is formed so as to communicate with the exhaust port 5. I have.

In a gap formed between the inner surface of the back surface of the main body 6 and the back surface of the fan casing 9, a shutter portion for opening and closing the air supply port 4 is rotatably provided by a shaft support portion 12a. A gear 12b is provided outside the shaft support 12a.
And the shutter 12 is formed.

Further, a shutter for opening and closing the exhaust port 5 is rotatably provided by a shaft support 13a.
Is provided with a gear 13b, and the shutter 13 is formed so that the gear 13b meshes with the gear 12b provided on the shutter 12.

An elastic member 14 whose one end is engaged with the main body 6 is always connected to the connecting portion 12c formed on the gear portion of the shutter 12 on one side so that the shutter 12 always acts to close the air supply port 4. Further, one end of a drawstring 16 of a series of drawstring devices constituted by a drawstring 16 including an interlock mechanism 15 is connected to the connecting portion 12c.

In the above configuration, when the ventilation fan is operated, when the drawstring 16 of the drawstring device is pulled, the drawstring 1
6 are connected to each other, and the connecting portion 12c rotates about the pivot 12a. At this time, the gear 1 provided outside the shaft support 12a
2b is rotated and the gear 13 meshed with the gear 12b
b also rotates with the shaft support 13a interlocking with the fulcrum, the shutter 12 and the shutter 13 move to the positions indicated by the dotted lines, the air supply port 4 and the exhaust port 5 are opened, and the pull cord 16 is The shutter 12 and the shutter 13 are held in the open state.

Then, the outdoor air is sucked into the air supply blower 10 through the air supply connection pipe 2 and the air supply port 4, and is supplied into the room through the heat exchanger 8. When the indoor air is sucked by the exhaust blower 11 and passes through the heat exchanger 8,
The heat is exchanged with the supply air, and the air is exhausted outside through the exhaust port 5 and the exhaust connection pipe 3.

Next, when the operation is stopped, the drawstring 16 is operated so as to be released from the lock of the interlock mechanism 15, so that the drawstring 16 becomes elastic.
Is pulled into the main body 6 by the elastic force of. At this time, the connecting portion 12c to which the elastic member 14 is connected rotates around the shaft supporting portion 12a, and the gears 12b and 13b meshing with each other rotate with this rotation, and the shutter 12 and the shutter 13 The supply port 4 and the exhaust port 5 are closed.

As described above, according to the heat exchange type ventilation fan of the first embodiment of the present invention, the shutter 12 and the shutter 13
Since the gears 12b and 13b mesh with each other, the gears 12b and 13b are simultaneously moved to open and close the air supply port 4 and the air exhaust port 5, so that the opening and closing operation can be reliably performed, and the rear surface of the main body 6 is hardly affected by distortion. Shutter 12 and shutter 13 in the center
Can be installed, so that the movement of the shutters 12 and 13 does not deteriorate.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted in each embodiment.

As shown in the figure, one side has a connecting portion 18a to which the drawstring 16 and the connecting rod 17 are connected, and the other side has a shutter portion for opening and closing an air supply port.
A shutter 18 rotatably provided via 8b,
A connecting portion 19a to which the other end of the connecting rod 17 is connected
And a shutter portion for opening and closing the exhaust port 5 is provided on the other side, and a shutter 19 is provided so that the intermediate portion is rotatably provided via a shaft support portion 19b.

The connecting portion 19 of the shutter 19
An elastic member 20 having one end locked to the main body 6 is connected to a, and a shutter 19 is provided so as to always close the exhaust port 5, and is connected to a connecting rod 17 connected to a connecting portion 19a of the shutter 19. The shutter 18 connected via the portion 18a is also configured such that the air supply port 4 is always closed.

In the above configuration, when the ventilation fan is operated, when the drawstring 16 of the drawstring device is pulled, the connecting portion 18a to which the drawstring is connected causes the shutter 18 to rotate about the pivot 18b and the air supply port. 4 is opened, the connecting portion 19a, which is connected to the other end of the connecting rod 17 whose one end is connected to the connecting portion 18a, moves, the shutter 19 moves around the pivot 19b, and the exhaust port 5 is closed. Opened first
Air supply and exhaust are performed by the same operation as in the embodiment.

Next, when the operation of the ventilation fan is stopped, the drawstring 16 is operated so as to be released from the lock of the interlock mechanism 15, so that the drawstring 16 causes the connecting rod 17 by the elastic force of the elastic member 20. The shutter 18 and the shutter 19 are returned to the original state, and the air supply port 4 and the exhaust port 5 are closed.

As described above, according to the heat exchange type ventilating fan of the second embodiment of the present invention, one of the connecting portions 18a and 19a is provided, and the other is provided with the shutter portion for opening and closing the supply port 4 and the exhaust port 5. An intermediate portion between the shutters 18 and 19 is rotatably provided around a fulcrum, and a connecting rod 1 is provided between the shutters 18 and 19.
7, the two shutters 18 and 19 simultaneously open and close the supply port 4 and the exhaust port 5 by operating the drawstring 16, so that the opening and closing operation is reliable and the movement of the shutters 18 and 19 is improved. Becomes

Embodiment 3 Hereinafter, a third embodiment of the present invention will be described with reference to FIG. As shown in the figure, shutter portions 21a and 2 which are substantially propeller-shaped and open and close the air supply port 4 and the air discharge port 5 on both sides.
1b, a shaft support 21c is provided at the center, and one shutter 21 rotatably supported by the main body 6; and a pulling device above the shutter 21b for opening and closing the exhaust port 5 of the shutter 21. An end of the drawstring 16 is connected, and an elastic member 22 whose one end is locked to the main body 6 is connected to a lower portion of the drawstring 16, and the shutter 2 is pulled by the elastic member 22.
1b is a contact 23 at the position where the exhaust port 5 is closed.
Is provided on the main body 6, and the shutter 21 is always
The air supply port 4 and the exhaust port 5 are configured to be closed by 1a and 21b.

In the above configuration, when the ventilation fan is operated, when the pull cord 16 of the pull string device is pulled,
The shutter 21b is pulled upward, the shutter 21 rotates about the pivot 21c, the shutter 21a moves diagonally downward, the shutter 21b moves diagonally upward, and the air supply port 4 and the exhaust port. 5 are simultaneously opened, and air supply and exhaust are performed by the same operation as in the first embodiment.

Next, when the operation of the ventilation fan is stopped, the drawstring 16 is operated so as to be released from the lock of the interlock mechanism 15, so that the drawstring 16 operates the shutter 21 b by the elastic force of the elastic member 22. The shutter 21 is moved to a position where the shutter portion 21b contacts the contact 23 and the air supply port 4 is pulled.
And the exhaust port 5 is closed.

As described above, according to the heat exchange type ventilation fan of the third embodiment of the present invention, the shutter portions 21a and 21
b is provided rotatably around a central portion of the shutter 21 provided with the shutter b.
Since the shutter 21 and the exhaust port 5 are opened and closed at the same time, it is possible to obtain a low-cost shutter device having a simple structure and in which the operation of the shutter 21 is reliably performed.

Embodiment 4 Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. As shown in the figure, shutters 24 and 25 having a shutter portion for opening and closing the air supply port 4 and the exhaust port 5 and having gears 24a and 25a formed on the outer periphery thereof, and gears 24a and 25a of the shutters 24 and 25 have teeth. The gear teeth 26a are formed in a straight line, and the main body 6 is formed below the shutters 24 and 25 so that the gears 24a and 25a of the shutters 24 and 25 mesh with each other.
And a gear 2 of the shutters 24 and 25 above the shutters 24 and 25.
The main body 6 is provided with a sliding tooth profile member 27 in which a tooth profile portion 27a where the 4a and 25a mesh is formed in a straight line.

The pulling cord 16 of the drawstring device is connected to one end of the sliding tooth profile member 27, and an elastic member 28 whose one end is locked to the main body 6 is connected to the other end of the sliding tooth profile member 27. When the sliding member 27 is pulled by the elastic member 28, the position of the shutters 24 and 25 is adjusted so that the supply port 4 and the exhaust port 5 are closed.

In the above configuration, when the ventilation fan is operated, the pull string 16 of the pull string device is pulled when the pull string is pulled.
The gears 24a and 25a meshed with the sliding tooth member 27 are slid by the sliding tooth member 27 connected to the sliding tooth member 27 while rolling on the fixed tooth member 26 to the right. The air supply port 4 and the exhaust port 5 which have been closed by the shutters 24 and 25 are opened, and air supply and exhaust are performed by the same operation as in the first embodiment.

Next, when the operation of the ventilation fan is stopped, the pulling cord 16 is operated so as to be released from the lock of the interlock mechanism 15 so that the sliding tooth profile member 2 is operated.
7 is pulled by the elastic member 28, and the gears 24a and 25
a moves to the left while rolling on the fixed tooth member 26,
The intake port 4 and the exhaust port 5 are closed by the shutters 24 and 25 provided with the gears 24a and 25a.

As described above, according to the heat exchange type ventilating fan of the fourth embodiment of the present invention, the shutters 24 and 25 provided with the gears 24a and 25a are moved by moving the sliding tooth member 27, and In addition, the shutter opening / closing operation is reliably performed to open and close the exhaust port 5, and the moving direction of the sliding tooth profile member 27 is the same as the pulling direction of the pull cord 16, so that the pull string operation can be performed easily.

[0041]

As is apparent from the above embodiments, according to the present invention, the two shutters for opening and closing the air supply port and the air exhaust port are simultaneously moved by gear interlocking to perform the opening and closing operation. Since the shutter can be opened and closed, and a shutter can be installed at the center of the rear surface of the main body where the main body is not easily affected by distortion, a heat exchange type ventilation fan with good shutter movement can be provided.

Further, the two shutter opening and closing the air supply port and the exhaust port is connected by a connecting rod, since at the same time are movable two shutter by drawstring, it can form the shutter with a simple shape, the opening and closing Operation is assured.

Further, since the shutter for opening and closing the supply port and the exhaust port is formed by one sheet, the structure is simple and the cost is low.

Further, since a gear is provided on a shutter for opening and closing the supply port and the exhaust port so as to roll and move on a linear tooth profile member, the shutter can be opened and closed accurately and smoothly. Become.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a shutter device of a heat exchange type ventilation fan according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view showing an installation state of the heat exchange type ventilation fan of the first embodiment.

FIG. 3 is an exploded perspective view showing the configuration of the heat exchange type ventilation fan of the first embodiment.

FIG. 4 is a front view showing a configuration of a shutter device of the heat exchange type ventilation fan according to the second embodiment.

FIG. 5 is a front view showing a configuration of a shutter device of the heat exchange type ventilation fan according to the third embodiment.

FIG. 6 is a front view showing a configuration of a shutter device of the heat exchange type ventilation fan according to the fourth embodiment.

FIG. 7 is an exploded perspective view showing a configuration of a conventional heat exchange type ventilation fan.

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

FIG. 9 is a front view showing a configuration of a shutter device of the heat exchange type ventilation fan.

[Explanation of symbols]

 Reference Signs List 4 air supply port 5 exhaust port 6 main body 8 heat exchanger 9 casing 10 air supply blower 11 exhaust blower 12 shutter 12b gear 13 shutter 13b gear 14 elastic member 15 interlock mechanism 16 drawstring 17 connecting rod 18 shutter 18a connecting portion 18b shaft Support 19 Shutter 19a Connecting portion 19b Shaft support 20 Elastic member 21 Shutter 21a Shutter portion 21b Shutter portion 21c Shaft support 22 Elastic member 24 Shutter 24a Gear 25 Shutter 25a Gear 26 Fixed tooth member 26a Tooth shape 27 Sliding tooth member 27a Tooth member 27a Tooth member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 7/08 101 F16H 19/04

Claims (4)

(57) [Claims] 1. An air supply blower provided in an air supply passage for supplying outdoor air into a room, an exhaust air blower provided in an exhaust passage for exhausting indoor air to the outside of the room, and a space between the indoor air and the outdoor air. A casing provided with a heat exchanger for exchanging heat with the main body, a main body provided with an air supply port and an exhaust port arranged in parallel with the air supply path and the exhaust path, and an air supply port provided in the main body. And two shutters that pivot about a pivot to open and close the exhaust port, and these two shutters are tooth-shaped
Provided outside of the shaft support of each shutter so that
A gear meshing with have a drawstring apparatus having a drawstring that is connected to the connecting portion provided in the shutter of the one side via an interlock mechanism, the two shutters always the air inlet exhaust e Bei an elastic member provided between the connecting portion and the main body so as to close the mouth, the drawstrings of the two shutters simultaneously closing allowed to configuration and the heat exchange type ventilators by operation. 2. An air supply passage for supplying outdoor air into a room.
Air blower and exhaust to exhaust indoor air to the outside
Exhaust blower provided in the passage, indoor air and outdoor air
A casing provided with a heat exchanger for exchanging heat between
The air supply passage and the exhaust passage
Main body with vent and exhaust port , interlock on one side
A connecting portion to which one end of the pull string and the connecting rod including a mechanism is coupled, the support of the shutter unit for opening and closing the air supply opening or the exhaust port to the other, the intermediate portion of the shaft support as a fulcrum
Re has a shutter pivotably mounted, a connecting portion which is the other end of the connecting rod to one are connected, providing a shutter for opening and closing the exhaust port or the air supply port to the other, the intermediate portion
Comprising a shutter pivotably mounted is supported shaft support as a fulcrum, the an elastic member provided between the connecting part and the body so that each shutter always closes the exhaust opening and the air supply port, the pull Operation of the string
A heat exchange type ventilation fan that can open and close two fans at the same time . 3. An air supply passage for supplying outdoor air into the room.
Air blower and exhaust to exhaust indoor air to the outside
Exhaust blower provided in the passage, indoor air and outdoor air
A casing provided with a heat exchanger for exchanging heat between
The air supply passage and the exhaust passage
A body having a gas inlet and outlet, forming a shutter for opening and closing the air supply port and the exhaust port on both sides almost propeller shape, one provided rotatably said body is provided a shaft supporting portion in the central portion A shutter, a pull cord connected to the shutter for rotating the shutter, and an elastic member provided between the shutter and the main body so as to always close the air supply port and the exhaust port . By operation
Open and close the air supply and exhaust ports simultaneously.
A heat-exchange type ventilation fan. 4. An air supply passage for supplying outdoor air into the room.
Air blower and exhaust to exhaust indoor air to the outside
Exhaust blower provided in the passage, indoor air and outdoor air
A casing provided with a heat exchanger for exchanging heat between
The air supply passage and the exhaust passage
A main body having an air port and an exhaust port, two shutters having a shutter section for opening and closing the air supply port or the exhaust port, and having gears formed on the outer periphery thereof, and a gear of the two shutters. and forming a tooth portion for meshing with a straight line fixed teeth member fixed to the body, the two shutters of the gear is formed in a linear shape the tooth portion for meshing, the two between the fixed tooth member A sliding tooth member slidably provided on the main body so as to interpose a shutter, a drawstring connected to the sliding tooth member, and the two shutters are always
A said sliding toothed member and the elastic member are found provided between the main body so as to close the air supply port and an exhaust port, said drawstrings
By operation, slide the sliding tooth member, the two
A heat exchange type ventilation fan with a shutter that can be opened and closed simultaneously .