JP2002310093A - Pipe fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost pipe fan having superior workability and maintenance to other types of ventilation fans, having a high static pressure and low noise, adopting a thin-type panel and a wind-pressure type shutter, and exchangeable of strong/weak notches. SOLUTION: This pipe fan is so constituted that the axial direction of a motor 17 is installed approximately vertically to the penetration direction of a wind tunnel pipe 4. The fan is constituted of a multiblade fan responding to the high static pressure and a scroll 24 to become a channel is inserted and disposed inside a body frame 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a pipe fan.

[0002]

2. Description of the Related Art Conventionally, the structure of a pipe fan has a problem that the air flow with respect to a static pressure is low because a motor and a propeller fan or a turbo fan are housed in a main frame.

In the case of a propeller fan or a turbo fan, if the distance between the front cover and the fan is short, it is necessary to protrude the front cover largely into the room in order to solve the problem that the operating noise increases due to wind noise. . When a backwind prevention shutter is required, an electric backwind prevention shutter is arranged on the air supply side grill.

[0004]

A pipe fan is easier to use than other types of ventilation fans in terms of workability and maintainability, and is therefore widely used for shortening the construction period of a building and reducing construction costs. Due to the characteristics of the fan, conventional propeller fans and pipe fans that use turbo fans cannot be adopted because of their low airflow against static pressure in places with high airtightness, places where strong external wind is applied, and high places. is there.

A conventional pipe fan uses a condenser motor having a structure in which a coil is wound around a motor core and covered with a housing and an end bracket.
For this reason, there is a problem that the assemblability is worse than that of a shading motor in which a coil is simply wound around a bobbin, and a manufacturing cost and a component cost are high due to a configuration in which a capacitor must be used.

Further, in the case of a small condenser motor used for a pipe fan, tapping work for a strong notch is more difficult to assemble than a motor with a single notch, so that an inexpensive strong notch is used. There is a problem that the pipe fan cannot be supplied.

Further, since the conventional pipe fan has a thick body composed of a bell mouth, a fan, and a motor from the air supply side, a wind pressure type back wind prevention shutter may be provided on the exhaust side within the wall thickness. Can not.

Further, if the pipe fan always requires a backwind prevention shutter, it is necessary to arrange the backwind prevention shutter on the air supply side grille that cannot be used with a wind pressure type and to open and close the backwind prevention shutter, resulting in high manufacturing costs. Problem.

Further, since the conventional pipe fan uses a propeller fan or a turbo fan, if the distance between the fan and the front cover is not sufficiently ensured, wind noise is generated.
The operating noise of the pipe fan increases. In order to reduce operating noise, it is necessary to increase the size of the front cover protruding from the air supply side wall surface, resulting in a problem of poor design. In particular, in the case of the panel type, it is necessary to make the protrusion size of the front cover larger in order to secure the air supply passage than the grill type.

When a pipe fan is installed on a partition wall between a room and a room, a room and a corridor, a storage unit such as a closet and a room or a corridor, and is used as a communication fan through which air flows to every corner of the whole building, a conventional pipe fan is used. Because the thickness of the main body consisting of the bell mouth, fan, and motor from the air supply side of the fan is thick, it does not fit within the wall thickness, and there is a problem that the wall thickness must be increased only at the pipe fan installation part .

An object of the present invention is to maintain the workability and maintainability of a pipe fan superior to other types of ventilation fans,
It is an object of the present invention to provide an inexpensive pipe fan that can switch between high and low notches with high static pressure, large air volume, low noise, adoption of a thin panel, adoption of a wind pressure shutter, and switching of a notch.

[0012]

The present invention is characterized in that the motor is installed so that the direction of the motor axis is substantially perpendicular to the direction in which the wind tunnel pipe penetrates, and the fan is constituted by a sirocco fan capable of high static pressure. Is inserted and arranged inside the body frame.

Other features of the present invention will be apparent from the following description.

[0014]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described based on Nos.

1 to 4, reference numeral 1 denotes a wall of a building, which connects an indoor side wall surface 2 and an outdoor side wall surface 3 to a wind tunnel pipe 4 having an inner diameter of φ100.
Penetrates between the room and the outside. Reference numeral 5 denotes an indoor panel provided with an opening 6 serving as an air suction port in all circumferential directions, and a panel boss 9 is provided so as to be inserted into a base boss 8 extending from a panel base 7. The base boss 8 has a pawl (claw) 10, and the panel boss 9 has a pawl 1.
A hole 11 is provided so that 0 is fitted. Panel boss 9
Is inserted into the base boss 8, the pawl 10 fits into the hole 11, and the panel 5 is detachably attached to the panel base 7 and can be positioned and fixed.

An elongated slot 12 for screwing to the wall 1 is provided inside the base boss 8 of the panel base 7, and the panel base 7 is fixed to the wall 1 with a plurality of screws 13. The panel base 7 is provided with a groove 15 for supporting a motor base 14 made of a steel plate and a groove 16 for holding a shutter shaft.

The motor base 14 is provided with a shading motor 17 and a quick-connecting terminal 18 which are advantageous in terms of cost and can switch between strong and weak notches, and are fixed by screws or the like. The motor 17 and the quick-connecting terminal 18 are connected by lead wires. It is. Reference numeral 19 denotes an indoor line which penetrates a power supply port 20 provided on the panel base 7 and which
It is inserted and fixed in the terminal hole. The indoor line 19 is a quick connection terminal 1.
8 can be removed by pressing a button 21 provided on the upper part.

Reference numeral 22 denotes a sirocco fan capable of supporting high static pressure, which is inserted and fixed to a shaft 23 of the motor 17. Reference numeral 24 denotes a sirocco fan 22 and a pair of resin scrolls, which are fixed to the motor base 14 with claws 25.

The main body of the pipe fan is a main body frame 26.
A plurality of shutters 27 are rotatably inserted into the shutter shaft groove 16 of the above, and the motor base 14 integrated with the motor 17, the quick connection terminal 18, the sirocco fan 22, and the scroll 24 is inserted into the support groove 15 of the main body frame 26. After that, the power supply cover 28 is fixed to the panel base 7 by screwing or the like, and the direction of the shaft 23 is arranged substantially perpendicular to the direction in which the wind tunnel pipe 4 penetrates.

The electric power supplied from the indoor line 19 via the quick connection terminal 18 causes the shaft 23 of the motor 17 and the sirocco fan 22 to rotate. By this action, the indoor air is guided from the entire peripheral opening 6 of the panel 5 and the bell mouth 2
9, through the sirocco fan 22 and the scroll 24, the shutter is pushed up by the wind pressure, and is discharged outside through the wind tunnel pipe 4.

An exhaust panel 30 has the same design as the air supply panel 5. Reference numeral 31 denotes a rectifying plate for dispersing the air discharged from the scroll 24 in the entire circumferential direction.

In this structure, since the sirocco fan 22 capable of supporting a high static pressure is mounted, the sirocco fan 22 can be used in a highly airtight place, a place exposed to strong external wind, a high place, and the like. In addition, since the shading motor 17 with the strong notch is mounted, the assemblability of the motor is good, and since the structure does not require a capacitor, the manufacturing cost and parts cost can be supplied at a lower cost than the conventional pipe fan using the capacitor motor. .
In addition, the pipe fan is provided with a plurality of inexpensive wind pressure type backwind prevention shutters 27 on the exhaust side so as to have low resistance, so that air does not enter from the outdoor side.

The direction of the motor shaft 23 is substantially perpendicular to the direction in which the wind tunnel pipe 4 penetrates, and the scroll 24 serving as a flow path is also inserted and arranged inside the main body frame 26. And the projection size of the panel 5 can be reduced.

Further, since a propeller fan or a turbo fan is not used, there is no increase in driving noise due to a short distance between the fan and the panel 5.

Further, since the length of the main body can be made short, a pipe fan is installed on a room, a room, a room and a corridor, a storage part such as a closet, and a thin partition wall such as a room or a corridor, and air flows to every corner of the whole building. Can be used as a communication fan.

[0026]

As is apparent from the above description, according to the present invention, the motor is installed so as to be substantially perpendicular to the wind tunnel pipe penetration direction, and the fan is constituted by a high static pressure sirocco fan. Since the scroll serving as the flow path is also inserted and arranged inside the main body frame, a thin pipe fan capable of supporting a high static pressure can be supplied to the market.

In addition, the present invention has the following effects.

Since the fan driving motor installed in the wind tunnel pipe is a thin shading motor in the axial direction and the scroll width, that is, the exhaust passage is widened, a pipe fan with a large air volume and low noise can be supplied to the market.

Since the shading motor is provided with strong and weak notches, a pipe fan capable of switching operation modes such as continuous ventilation and rapid ventilation can be supplied at low cost to the market.

Since the flow path of the scroll is expanded both in the horizontal direction and in the vertical direction, a pipe fan with a larger air volume and lower noise can be supplied to the market.

Since a wind pressure type back wind prevention shutter is provided in the vicinity of the air discharge port of the scroll, a pipe fan suitable for a high airtight house without intrusion of outside wind can be supplied to the market at low cost.

By dividing and installing a plurality of wind pressure type backflow prevention shutters, a thin pipe fan can be supplied to the market at low cost. By dividing and installing a plurality of wind pressure type backflow prevention shutters, a pipe fan with a small exhaust resistance and a large air volume can be supplied to the market.

By forming the front cover detachably attached to the main body frame with a panel covering and covering components, a pipe fan with excellent design can be supplied to the market.

By providing a front cover or panel of the same or similar shape to the front cover or panel provided on the air supply side wall on the exhaust side wall surface, the interior of the entire house can be made uniform.

It is possible to supply a high-design pipe fan with a high design capability at a low cost, which has a large air volume, a low noise, a thin body, a thin panel, a wind pressure type backwind prevention shutter, and a high / low air flow rate switch capable of supporting a high static pressure.

[Brief description of the drawings]

FIG. 1 is a horizontal longitudinal sectional view of a pipe fan according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view in the front direction of a pipe fan according to an embodiment of the present invention.

FIG. 3 is an upper longitudinal sectional view of a pipe fan according to an embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a pipe fan according to an embodiment of the present invention, taken in a horizontal direction.

[Explanation of symbols]

 1: wall 21: button 2: indoor side wall 22: sirocco fan 3: outdoor side wall 23: shaft 4: wind tunnel pipe 24: scroll 5: panel 25: nail 6: panel opening 26: body frame 7: panel base 27 : Shutter 8: Base boss 28: Cover 9: Panel boss 29: Bell mouth 10: Pawl 30: Exhaust panel 11: Hole 12: Mounting long hole 13: Screw 14: Motor base 15: Support groove 16: Shaft groove 17: Motor 18 : Quick connection terminal 19: Indoor line 20: Power supply port

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) F04D 29/42 F04D 29/42 M 29/44 29/44 HQU 29/46 29/46 EJ29 / 62 29/62 CF term (reference) 3H022 AA02 BA01 BA03 BA07 CA01 CA48 CA49 CA50 CA56 DA07 DA12 DA16 DA19 DA20 3H034 AA02 AA13 AA14 AA18 BB02 BB06 BB16 BB19 BB20 CC03 CC05 CC06 CC07 DD01 DD08 DD12 DD20 DD21 DD22 DD20 EE09 EE12 EE14 EE17

Claims (8)

[Claims] 1. A motor which is installed so that a motor axis direction is substantially perpendicular to a direction in which a wind tunnel pipe penetrates. Pipe fan characterized by being arranged. 2. The pipe fan according to claim 1, wherein the fan driving motor installed in the wind tunnel pipe is a thinning motor in the axial direction. 3. The pipe fan according to claim 2, wherein the shading motor is provided with a strong notch. 4. The pipe fan according to claim 1, wherein the expansion of the flow path of the scroll is expanded both in the horizontal direction and in the vertical direction. 5. The pipe fan according to claim 1, wherein a wind pressure type back wind prevention shutter is disposed near the air discharge port side of the scroll. 6. The pipe fan according to claim 5, wherein a plurality of said wind pressure type backflow prevention shutters are divided and installed. 7. The pipe fan according to claim 1, wherein the front cover detachably attached to the main body frame is a panel for covering and hiding components. 8. A front cover or panel having the same or similar shape as the front cover or panel installed on the air supply side wall is provided on the exhaust side wall surface according to any one of claims 1 to 7. Pipe fan.