JP2013011416A - Air cleaner, and air cleaner with humidifying function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner and an air cleaner with a humidifying function which can avoid increasing noise and can avoid the deterioration of efficiency even if a diameter of a turbo fan is increased without a scroll casing in a limited space.SOLUTION: The air cleaner includes: a body 1 having a suction port 2 and an outlet 3 of air; an air cleaning means; and the turbo fan 7 and an electric motor 8 for driving the fan in a casing 6 having a substantially-rectangular parallelepiped shape. A relationship between the maximum width W of the casing 6 parallel to a plane having the outlet 3 and the diameter D of the turbo fan 7 is satisfied in W<1.3×D. A working surface 15 which is a rotational direction when viewing from a side of the outlet 3 has a first auxiliary discharge port 16, and a reaction surface 17 has a second auxiliary discharge port 18. The first auxiliary discharge port 16 has an opening cross section larger than that of the second auxiliary discharge port 18. As a result, even if the diameter of the turbo fan is increased, the effect of avoiding an increase of noise and the deterioration of efficiency is achieved.

Description

  The present invention relates to an air purifier for performing air cleaning and humidification of indoor air and an air purifier with a humidifying function.

  Conventionally, this type of air cleaner and an air cleaner with a humidifying function are known to use a turbofan (see, for example, Patent Document 1).

  Hereinafter, the air cleaner with a humidifying function will be described with reference to FIG.

  As shown in a cross-sectional view in FIG. 7, in the air cleaner with a humidifying function having a cartridge water supply tank 102 that supplies water to the vaporization filter 101, the fan motor drives the turbo fan 103, the turbo fan 103, and An electric motor 104 placed so as to enter inside the central portion of the turbo fan 103, a suction plate 105 provided with a suction port of the turbo fan 103, and an outer periphery of the turbo fan 103 surrounding the turbo fan 103 and facing the discharge port The cartridge water supply tank 102 placed between the filter unit 107 and the fan motor is arranged so that the gap between the outer periphery of the turbofan 103 and the outer periphery of the turbofan 103 is closer to the narrower side. 101 is arranged close to the opposite side of the cartridge water supply tank 102. It is characterized in.

JP 2007-10230 A

  Such a conventional air cleaner with a humidifying function is used particularly when air is collected and blown in one direction. In order to efficiently collect air blown while rotating from a turbo fan, a turbo is used. A scroll-like casing is provided in which the width in the radial direction of the turbofan is increased and the cross-sectional area is increased along the flow in the fan rotation direction. The scroll-shaped casing, if not large enough for the turbofan diameter, blocks the flow path at the turbofan part and prevents air discharge, ensuring a maximum width 1.3 times the turbofan diameter. It is common to do.

  However, if the turbo fan and the casing are provided in a limited space, the diameter of the turbo fan is 1 / 1.3 or less with respect to the casing. Therefore, the fan itself becomes small and high in order to produce a desired air volume. Rotation was necessary, causing an increase in noise, and it was difficult to achieve both high efficiency and low noise.

  Therefore, the present invention solves the above-described conventional problems, and in a limited space, even if the turbofan diameter is increased without providing a scroll casing, an increase in noise and a decrease in efficiency can be avoided. It aims at providing a cleaner and an air cleaner with a humidification function.

  And in order to achieve this object, the air cleaner of the present invention includes a main body having an air inlet and an outlet, an air purification means in the air passage communicating the inlet and the outlet, A substantially rectangular parallelepiped casing has a turbo fan and an electric motor for driving the turbo fan. The turbo fan rotated around the rotating shaft of the electric motor has a main plate fixed to the electric motor, and a side plate having a turbo fan intake port. And a blade fixed between the main plate and the side plate, and the casing has a suction surface having an orifice for allowing air to flow into a turbofan suction port on a surface perpendicular to the rotation axis, and the suction surface And the turbo fan diameter D is W <1.3 × D, and the air outlet is connected to the main body. Upward The first auxiliary discharge port is disposed on the working surface that is disposed and is in the rotational direction when viewed from the air outlet side, and the second auxiliary discharge port is disposed on the reaction surface that faces the working surface. This is characterized in that the opening cross-sectional area is larger than that of the auxiliary discharge port, thereby achieving the intended purpose.

  According to the present invention, an air purifier includes a main body having an air inlet and an air outlet, an air passage communicating the air inlet and the air outlet, an air purifying means, and a substantially rectangular parallelepiped casing. The turbo fan having a turbo fan and an electric motor for driving the turbo fan and rotated about a rotating shaft of the electric motor includes a main plate fixed to the electric motor, a side plate having a turbo fan inlet, the main plate and the side plate. The casing is composed of blades fixed in between, and the casing has a suction surface having an orifice for allowing air to flow into the turbofan suction port on a surface perpendicular to the rotation axis, and the blower on one surface adjacent to the suction surface. The relationship between the casing maximum width W parallel to the surface having the outlet and the turbofan diameter D is W <1.3 × D, the outlet is disposed above the main body, and the outlet Exit side The first auxiliary discharge port has a first auxiliary discharge port on the working surface that is in the direction of rotation when viewed, and the second auxiliary discharge port on the reaction surface opposite to the working surface. Because of the large structure, the pressure on the working surface side is generally higher than that on the reaction surface side because air collects in the space on the opposite side of the casing outlet, but the first auxiliary discharge port has a second auxiliary discharge port. Since the opening cross-sectional area is larger than the outlet, the pressure on the working surface side can be suppressed from being higher than the pressure on the reaction surface side. Even if the diameter of the turbofan is increased without providing the scroll casing in the space, the turbofan can be used efficiently, and the power consumption and noise of the air cleaner can be reduced.

The perspective view of the air cleaner of Embodiment 1 of the present invention. Same sectional perspective view Same sectional perspective view The exploded perspective view of the air cleaner with a humidification function of Embodiment 2 of the present invention Same sectional perspective view Same sectional perspective view Sectional drawing which shows an example of a prior art

  According to a first aspect of the present invention, there is provided an air cleaner comprising: a main body having an air inlet and an air outlet; an air purification means in an air passage communicating the air inlet and the air outlet; A turbo fan and an electric motor for driving the turbo fan, the turbo fan being rotated about a rotating shaft of the electric motor, a main plate fixed to the electric motor, a side plate having a turbo fan inlet, and the main plate, The casing is composed of a blade fixed between the side plates, and the casing has a suction surface having an orifice for allowing air to flow into the turbofan suction port on a surface perpendicular to the rotation axis, and a surface adjacent to the suction surface. The relationship between the casing maximum width W parallel to the surface having the air outlet and the turbofan diameter D is W <1.3 × D, and the air outlet is disposed above the main body. Said blowing The first auxiliary discharge port has a first auxiliary discharge port on the working surface in the rotational direction when viewed from the side, and a second auxiliary discharge port on the reaction surface opposite to the working surface, and the first auxiliary discharge port is disconnected from the second auxiliary discharge port. It is characterized by a large area.

  As a result, the pressure on the working surface is generally higher than that on the reaction surface because air collects in the space on the side opposite to the air outlet of the casing, but the first auxiliary discharge port has an opening cross-sectional area larger than that of the second auxiliary discharge port. Since the pressure on the working surface side can be prevented from becoming higher than that on the reaction surface side, the pressure balance in the casing can be appropriately maintained, so that the scroll casing is limited in a limited space. Even if the diameter of the turbo fan is increased without providing the above, the turbo fan can be used efficiently, and the power consumption and noise of the air cleaner can be reduced.

  Moreover, a suction inlet may be in the front surface of a main body.

  As a result, the front side of the main body can be set to a negative pressure by the airflow blown out from the blowout port, the first auxiliary discharge port, and the second auxiliary discharge port. An air current attracted in the direction of the mouth is generated, and the air on the front side of the main body can be efficiently sucked into the suction port.

  Moreover, it is good also as a structure which provided the wind direction guide which controls a blowing airflow in a 1st auxiliary discharge port and a 2nd auxiliary discharge port.

  Thereby, since the blowing direction of the air blown from the first auxiliary discharge port and the second auxiliary discharge port can be controlled by the wind direction guide that controls the blown air flow, an air flow that efficiently stirs the indoor air can be realized. .

  Moreover, it is good also as a structure by which a 1st auxiliary discharge port and a 2nd auxiliary discharge port are arrange | positioned in a substantially horizontal position with a turbo fan.

  This generally increases the pressure because the distance between the turbo fan and the casing wall surface becomes shorter at a substantially horizontal position with respect to the turbo fan, and causes a loss due to the turbulence of the air flow due to the pressure gradient. By arranging the one auxiliary discharge port and the second auxiliary discharge port, it is possible to suppress an increase in pressure, and the air outlet in the casing generated by the turbofan is suppressed from being disturbed in the casing, while the first outlet and the first auxiliary discharge port are suppressed. It can blow out from an auxiliary discharge port and a 2nd auxiliary discharge port, and can reduce power consumption.

  Further, the second auxiliary discharge port may be arranged below the axial center of the turbofan.

  Thereby, the second auxiliary discharge port is disposed below the axial center of the turbofan, so that the airflow in the casing generated by the turbofan in the space opposite to the air outlet is prevented from being disturbed in the casing. While being able to blow out from the second auxiliary discharge port, power consumption can be reduced.

  The air cleaner according to any one of claims 1 to 5, further comprising: a vaporization filter that holds water; a tray that supplies water to the vaporization filter; and a tank that replenishes the tray with water. It is good also as an air cleaner with a humidification function characterized by arrange | positioning to a path | route and having set it as the structure which can pass the circumference | surroundings of the said tank, and / or a part of said tank.

  Thereby, a turbo fan can be used efficiently and the power consumption of the air cleaner with a humidification function can be reduced. In addition, since air can pass around the tank and / or part of the tank, the function of the air purifier with the humidifying function can be exhibited even in the air passage of the air purifier with the humidifying function. The air cleaner with a humidifying function can be made compact.

  Further, the tank is disposed adjacent to the first auxiliary discharge port, and the air blown from the first auxiliary discharge port is discharged around the tank and / or through a part of the air path of the tank. It is good also as a structure.

  As a result, the air blown out from the first auxiliary discharge port is blown out toward the ground from the rotation direction of the turbofan, but through the air passage provided around the tank and / or part of the tank. Since the blowing direction can be changed, it is possible to suppress the rising of dust and dust caused by applying an airflow to the ground.

  Further, the turbo fan may be arranged in the casing in the opposite direction to the tank.

  As a result, in the casing, the tank side is obstructed by the tank and the pressure loss is large, so the pressure balance in the casing is improved by placing it in the opposite direction to the tank in the casing, and the humidifier air cleaner Power consumption can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings for an air cleaner.

As shown in the perspective view of the main body of the air cleaner in FIG. 1 and the cross-sectional perspective views of FIGS. 2 and 3, the main body 1 of the air cleaner includes an air inlet 2 on the front side of the main body 1, an air outlet 3, a dust collecting filter 4 and a deodorizing filter 5 as air purifying means, and a substantially rectangular parallelepiped casing 6 in an air passage communicating with the suction port 2 and the blowout port 3. The turbofan 7 that has a motor 8 that drives the motor 8 and that is rotated about the rotation axis of the motor 8 includes a main plate 9 that is fixed to the motor 8, a side plate 10 that has a turbofan inlet, and the main plate 9 And a blade 11 fixed between the side plate 10 and the casing 6, the suction surface 13 having an orifice 12 for allowing air to flow into the turbofan suction port on a surface perpendicular to the rotation axis, and the suction The blower is It has a mouth 3,
The relationship between the maximum width W of the casing 6 parallel to the surface having the air outlet 3 and the diameter D of the turbofan 7 is W <1.3 × D, and the air outlet 3 is disposed above the main body 1, The first auxiliary discharge port 16 has a first auxiliary discharge port 16 on the working surface 15 in the rotation direction when viewed from the blower outlet 3 side, and a second auxiliary discharge port 18 on the reaction surface 17 opposite to the working surface 15. Has a larger opening cross-sectional area than the second auxiliary discharge port 18.

  With such a configuration, air is generally collected on the working surface 15 side in the space on the opposite side of the air outlet 3 of the casing 6 so that the pressure is higher than that on the reaction surface 17 side. Since the opening cross-sectional area is larger than that of the second auxiliary discharge port 18, the pressure on the working surface 15 side can be suppressed from being higher than that on the reaction surface 17 side. Therefore, even if the diameter of the turbofan 7 is increased without a scroll casing in a limited space, the turbofan 7 can be used efficiently, and the power consumption and noise of the air purifier can be reduced. Can be reduced.

  Moreover, as shown in FIG. 1, the suction inlet 2 is located in the front surface of the main body 1 of an air cleaner, and, thereby, the airflow which blows off from the blower outlet 3, the 1st auxiliary discharge port 16, and the 2nd auxiliary discharge port 18 Thus, the front side of the main body 1 can be set to a negative pressure. Therefore, when the suction port 2 is on the front side of the main body 1, an air flow that is attracted from the front side of the main body 1 toward the suction port 2 is generated. The side air can be efficiently sucked into the suction port 2.

  Further, as shown in FIG. 3, the first auxiliary discharge port 16 and the second auxiliary discharge port 18 are provided with a wind direction guide 19 for controlling the blown airflow. Since the blowing direction of the air blown from the discharge port 16 and the second auxiliary discharge port 18 can be controlled, an air flow that efficiently stirs the indoor air can be realized. In addition, the airflow blown out from the first auxiliary discharge port 16 on the working surface 15 has a property toward the ground, but the airflow direction is changed by the airflow direction guide 19 to prevent the dust from rising due to the airflow hitting the ground. be able to.

  Further, as shown in FIG. 3, the first auxiliary discharge port 16 and the second auxiliary discharge port 18 are disposed substantially horizontally with the turbo fan 7, and the second auxiliary discharge port 18 is located below the axial center of the turbo fan 7. As a result, the distance between the turbo fan 7 and the wall surface of the casing 6 is generally shortened at a substantially horizontal position with respect to the turbo fan 7, so that the pressure is increased and the loss is caused by the turbulence of the air flow due to the pressure gradient However, an increase in pressure can be suppressed by the above-described configuration, and the air outlet 3, the first auxiliary discharge port 16, and the first air outlet in the casing 6 can be prevented from being disturbed in the casing 6 by suppressing the airflow generated in the turbofan 7. The two auxiliary discharge ports 18 can be blown out, and the power consumption can be reduced.

(Embodiment 2)
Hereinafter, one embodiment of the present invention is described about an air cleaner with a humidification function using an accompanying drawing.

  FIG. 4 shows a perspective view of the main body of the air cleaner with a humidifying function, and FIGS. 5 and 6 show cross-sectional perspective views thereof. The air cleaner with a humidifying function 20 is the same as the air cleaner described in the first embodiment. , A vaporization filter 21 for holding water, a tray 22 for supplying water to the vaporization filter 21, and a tank 23 for supplying water to the tray 22, the tank 23 being arranged in an air passage, And / or air can pass through a part of the tank 23, the tank 23 is disposed adjacent to the first auxiliary discharge port 16, and the air blown from the first auxiliary discharge port 16 is the tank. 23 and / or via a part of the air passage of the tank 23. Here, as the vaporization filter 21, a known material such as a nonwoven fabric or a three-dimensional knitted fabric can be used.

  Thereby, the turbo fan 7 can be used efficiently and the power consumption of the air cleaner 20 with a humidification function can be reduced. Further, since the air passage through which air can pass is provided around the tank 23 and / or part of the tank 23, the function of the air cleaner 20 with the humidifying function can be achieved even in the air passage of the air purifier 20 with the humidifying function. Therefore, the degree of freedom of arrangement of the tank 23 is improved, and the air cleaner 20 with a humidifying function can be made compact. Further, the air blown from the first auxiliary discharge port 16 is blown toward the ground from the rotation direction of the turbofan 7, but the air path provided around the tank 23 and / or a part of the tank 23. Since the blowing direction can be changed by going through, it is possible to suppress the rising of dust and dust caused by applying an airflow to the ground. Here, the configuration in which air can pass through a part of the tank 23 indicates that a hole is provided in the tank 23 so that air can pass, or that a gap between the tank and the main body 1 is used. For example, a tank internal air passage 24 as shown in FIG. 5 and a gap air passage 25 as shown in FIG.

  Further, as shown in FIG. 6, the turbo fan 7 is disposed in the casing 6 so as to be opposite to the tank 23.

  Thereby, in the casing 6, the tank 23 side becomes an obstacle and the pressure loss is large, so that the pressure balance in the casing 6 is improved by placing the casing 23 in the opposite direction to the tank 23 in the casing 6, and humidification is performed. The power consumption of the functional air cleaner 20 can be reduced.

  An air cleaner having the configuration shown in the first embodiment is prepared, and the casing dimension W = 265 mm, the turbofan diameter D = 230 mm, the fan radial direction dimension of the first auxiliary discharge port 150 mm, and the fan auxiliary direction of the second auxiliary discharge port The fan efficiency was measured under the conditions of a size of 105 mm, an air volume of 6.8 m <3> / min, and a main body static pressure of 140 Pa including various filters. As a result of the test, it was confirmed that the fan efficiency was improved by 6% as compared with the case where the first auxiliary discharge port and the second auxiliary discharge port were not provided.

  The air cleaner and the air cleaner with a humidifying function according to the present invention can avoid an increase in noise and a decrease in efficiency even if the turbofan diameter is increased without a scroll casing in a limited space. It is useful as an air cleaner, an air cleaner with a humidifying function, an air conditioner, and the like.

DESCRIPTION OF SYMBOLS 1 Main body 2 Suction port 3 Outlet 4 Dust collection filter 5 Deodorizing filter 6 Casing 7 Turbofan 8 Electric motor 9 Main plate 10 Side plate 11 Blade 12 Orifice 13 Suction surface 15 Working surface 16 1st auxiliary discharge port 17 Reaction surface 18 Second auxiliary discharge Exit 19 Air direction guide 20 Air purifier with humidification function 21 Vaporization filter 22 Tray 23 Tank 24 Tank internal air passage 25 Air gap air passage 101 Vaporization filter 102 Cartridge water supply tank 103 Turbo fan 104 Electric motor 105 Suction plate 106 Casing 107 Filter unit

Claims (8)

A body having an air inlet and an outlet;
In the air passage communicating the inlet and the outlet, air purification means,
A substantially rectangular parallelepiped casing has a turbo fan and an electric motor for driving the turbo fan. The turbo fan rotated around the rotating shaft of the electric motor has a main plate fixed to the electric motor, and a side plate having a turbo fan intake port. And a blade fixed between the main plate and the side plate,
The casing has a suction surface having an orifice for allowing air to flow into the turbofan suction port on a surface perpendicular to the rotation axis, and the blowout port on one surface adjacent to the suction surface,
The relationship between the casing maximum width W parallel to the surface having the air outlet and the turbofan diameter D is W <1.3 × D,
The air outlet is disposed above the main body, and has a first auxiliary discharge port on a working surface that is a rotation direction when viewed from the air outlet side, and a second auxiliary discharge port on a reaction surface that faces the working surface, An air cleaner characterized in that the first auxiliary discharge port has a larger opening cross-sectional area than the second auxiliary discharge port. The air cleaner according to claim 1, wherein the suction port is located on a front surface of the main body. The air cleaner according to claim 1 or 2, wherein a wind direction guide for controlling the blown airflow is provided at the first auxiliary discharge port and the second auxiliary discharge port. The air cleaner according to any one of claims 1 to 3, wherein the first auxiliary discharge port and the second auxiliary discharge port are arranged substantially horizontally with the turbofan. The air cleaner according to any one of claims 1 to 4, wherein the second auxiliary discharge port is disposed below the axial center of the turbofan. The air purifier according to any one of claims 1 to 5, further comprising: a vaporization filter that retains water; a tray that supplies water to the vaporization filter; and a tank that replenishes the tray with water; An air cleaner with a humidifying function, wherein the air cleaner is arranged so that air can pass around the tank and / or part of the tank. A tank is disposed adjacent to the first auxiliary discharge port, and the air blown from the first auxiliary discharge port is discharged around the tank and / or through a part of the air passage of the tank. The air cleaner with a humidifying function according to claim 6. 8. The air cleaner with a humidifying function according to claim 7, wherein the turbo fan is disposed in the casing in a direction opposite to the tank.

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