JP2011052583A - Blowing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blowing device with a plurality of blowers, in which operation/stop of each blower is determined and it is confirmed whether or not each blower is normally operated, even when an installation site of the blowing device is high. <P>SOLUTION: The blowing device 10 includes the plurality of blowers each having an electric motor and an impeller 20 rotated by the electric motor as a driving source thereof, and installed in parallel with each other. The blowing device further includes: lamps 24 corresponding to respective electric motors; and a control circuit controlling the lamps 24 corresponding to respective electric motors to light a lamp 24 when the corresponding electric motor is normally operated, turn off a lamp 24 when the corresponding electric motor is stopped, or blink a lamp when the corresponding electric motor is in abnormal operating condition. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air blower installed near a ceiling, and more particularly, to an air blower capable of determining whether to operate / stop and confirm whether or not it is operating normally for each of a plurality of air blowers.

  Conventionally, air blowers installed for the purpose of improving ventilation efficiency and saving energy by assisting an air conditioner by a circulation effect are often installed near the ceiling.

  For this reason, especially in factories and warehouses with high ceilings, the blower is operated if it is not in a location where the wind from the blower directly hits or where the switch status (such as a breaker in the switchboard) can be checked. It was not possible to determine whether or not. Therefore, the blower device may remain stopped due to a failure or the like, which may cause an increase in power consumption or a decrease in ventilation efficiency with a decrease in the ability to assist the air conditioner.

  In particular, in a blower device in which a plurality of blowers are arranged side by side, even if some blowers fail, wind is sent from other blowers, so it is difficult to determine whether or not a failure has occurred.

  However, since it is inefficient in terms of cost and time to prepare an aerial work vehicle or to build a scaffold for confirmation of operation, it is normal to check whether the blower is operating normally. There is a need to be able to confirm from the area where humans live.

  In Patent Document 1, in a blower device in which a plurality of electric motors and a plurality of fans are connected, a guide is configured with an opening of a substantially triangular base on the outlet side, and an illuminator composed of a fluorescent lamp or the like is guided. An air blower disposed inside is disclosed. This blower is installed near the entrance, and is used as an air curtain or entrance illumination by turning on the electric motor and the illuminator.

JP-A-6-313603

As is apparent from the fact that the conventional air blower disclosed in Patent Document 1 uses a fluorescent lamp, it is assumed that it is installed at a relatively low place such as an entrance of a building and used as entrance lighting. It is not intended to be used for displaying information. In addition, since only one fluorescent lamp is provided for a plurality of motors and fans, even if an illuminator is used for information display purposes, it is not possible to distinguish the motors and display the state of the motor. .
Therefore, the invention disclosed in Patent Document 1 has a problem that in a blower device in which a plurality of blowers including an electric motor and a fan are connected, the state of each blower cannot be distinguished and displayed.

  The present invention has been made in view of the above, and even when installed at a high place, it is possible to determine whether it is operating / stopped and whether it is operating normally for each of the plurality of fans provided. The object is to obtain a device.

  In order to solve the above-described problems and achieve the object, the present invention provides a blower device in which a plurality of blowers each having an electric motor and a fan that rotates using the electric motor as a drive source are installed in parallel. The light-emitting means provided corresponding to the light-emitting means and the light-emitting means corresponding to each of the fans are abnormal in the first light-emitting pattern when the fan is operating normally and in the second light-emitting pattern when the fan is stopped. And a control means for emitting light with a third light emission pattern during operation.

  Advantageous Effects of Invention According to the present invention, there is an effect that even when installed at a high place, it is possible to obtain a blower capable of determining whether to operate / stop and whether or not it is operating normally for each of a plurality of blowers.

FIG. 1 is a six-sided view illustrating the configuration of the first embodiment of the blower according to the present invention. FIG. 2 is a front view of the blower. FIG. 3 is a top view of the blower. FIG. 4 is a rear view of the blower. FIG. 5 is a bottom view of the blower. FIG. 6 is a left side view of the blower. FIG. 7 is a right sectional view of the blower. FIG. 8 is a diagram illustrating a state where the blower is installed on the ceiling of the building. FIG. 9 is a diagram illustrating the appearance of the front and bottom surfaces of the second embodiment of the blower according to the present invention. FIG. 10 is a diagram showing the relationship between the lamp installation position and the blind spot.

  Embodiments of a blower according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a six-sided view illustrating the configuration of the first embodiment of the blower according to the present invention. FIG. 2 is a front view of the blower 10. FIG. 3 is a top view of the blower 10. FIG. 4 is a rear view of the blower 10. FIG. 5 is a bottom view of the blower 10. FIG. 6 is a left side view of the blower 10. FIG. 7 is a right side sectional view of the blower 10.

  The outer casing 11 of the blower 10 is composed of a top plate 14, a bottom plate 9, and side plates 15, and a suction port 12 is provided on the back side, and a blow-out port 13 is provided on the front side opposite thereto. Therefore, it has a box shape with front and rear opened.

A guide 27 is attached to the front surface of the blower 10 so as to divide the air outlet 13 into two vertically. The guide 27 is provided in the center of the blowout port 13 of the outer casing 11 and has a substantially triangular cross section with the suction port 12 side at the apex and the blowout port 13 side at the bottom. Each corner of the guide 27 is rounded, and a multi-layer parallel nozzle is formed in the outlet 13.
Since the guide 27 is attached, the jet is blown out in two from the outlet 13, but since a negative pressure is generated between them, the two jets merge after advancing for a while from the outlet 13. . As a result, the position at which the jet width begins to widen is moved away from the outlet 13 and the jet spread is suppressed.

  The wind tunnel 16 is attached to the suction port 12 and arranged at equal intervals. The wind tunnel 16 is fixed by fastening the mounting feet 18 to the outer casing 11 with screws 17.

  The same number of electric motors 19 is provided corresponding to the wind tunnel 16 and is fixed to the outer casing 11 via attachment feet (not shown). An impeller 20 composed of axial flow blades is installed on the rotating shaft 19 a of the electric motor 19 and is disposed in the wind tunnel 16. The impeller 20 and the electric motor 19 constitute a blower, and the impeller 20 rotates by receiving a driving force generated by the electric motor 19 and generates an air flow from the suction port 12 to the blowout port 13. That is, by operating the electric motor 19, the impeller 20 rotates, takes air from the suction port 12, and ejects it as a jet from the blowout port 13.

  On the side plate 15, a mounting bracket 21 is rotatably installed on a surface on the outer wall side of the outer casing 11. The mounting bracket 21 is provided with a plurality of angular pitch holes 26 in a substantially semicircular shape around the rotation center. The mounting bracket 21 can be fixed to the side plate 15 at an arbitrary angle by screwing the screws 25 into the screw holes (not shown) provided in the side plate 15 via the angle pitch holes 26. Thereby, the air blower 10 can set the blowing direction to an arbitrary direction.

  As shown in FIG. 8, the blower 10 is installed using a mounting bracket 21 on a ceiling 23 of a building 22 that is a large building such as a factory or a warehouse. Needless to say, it is not necessarily limited to mounting on the ceiling, and may be installed on a wall surface.

For the lamp 24, a light source having a luminance at which the illuminance (light flux per unit area) on the floor surface is equal to or higher than a value at which the light emission state can be confirmed in a state where the blower 10 is installed on the ceiling 23 is used. . Here, the luminance at which the illuminance on the floor is equal to or higher than the value at which the light emission state can be confirmed is defined as “high luminance”.
Since the illuminance is inversely proportional to the square of the distance from the light source, when installing in a high place such as the ceiling of a factory or warehouse, a low-brightness illuminator, such as a fluorescent lamp, displays the presence or absence of a blower failure. However, although it is difficult for the confirmer to identify the light emission state from the vicinity of the floor surface, the air blower 10 according to the present embodiment uses a high-intensity light source as the lamp 24. From this, it is possible to identify the light emission state.

  The blower device 10 includes a circuit board (not shown) on which a control circuit is formed. The state of each electric motor 19 is detected by a detection circuit provided on the circuit board to determine whether each blower is normal. To do. For example, the detection circuit detects the current value of each electric motor 19 and the control circuit compares it with a predetermined threshold value to determine whether each of the fans is normal. In accordance with the judgment result, the control circuit turns on the lamp 24 during normal operation of the blower, turns off the lamp 24 when stopped, and blinks the lamp 24 at the time of failure. It is possible to check whether the machine is in a stopped state or a failure state.

  As the color of light emitted from the lamp 24, it is preferable to select a color (red, green, blue, etc.) having a large difference (color difference) from natural light or illumination light, and by emitting light of these colors from the lamp 24. Even if the blower 10 is installed at a high place and the distance from the confirmer is increased, it is possible to easily check whether the blower is in a normal operation / stop / failure state.

  If the lamp 24 indicates that the blower has failed by blinking the lamp 24, if the detection circuit can identify the type of abnormality that has occurred in the motor 19, the failure that has occurred in the blower by changing the blinking pattern of the lamp 24 It is also possible to notify the same type. For example, it is possible to display what kind of failure has occurred in the blower by changing the number of times the lamp 24 is continuously blinked.

  Here, an example in which the failure of the blower is displayed by blinking the lamp 24 is shown. However, if the emission color of the lamp 24 is variable, the lamp 24 is displayed in a color different from that during normal operation. It is also possible to indicate that the blower has failed by lighting up. In addition, when the emission color of the lamp 24 is variable, it is possible to display what kind of failure has occurred in the blower by blinking in a different color according to the type of abnormality that has occurred in the electric motor 19. It is. Note that the lamp 24 itself does not necessarily have to be a light source that can selectively emit a plurality of light beams of different colors. A light source that emits white light and a plurality of color filters are used as the lamp 24, and a color filter to be used. The emission color may be changed by changing the type.

  By displaying the failure of the blower in the light emission state of the lamp 24, the confirmer can grasp whether or not the blower needs to be maintained and inspected while in the living area.

  Thus, the air blower according to the present embodiment includes the lamp 24 corresponding to each of the blowers, and changes the light emission state of the lamp 24 to ON / OFF / flashing according to the state of the motor 19 of the corresponding fan. Let For this reason, even if it is a case where it installs in a high place, the checker can discriminate | determine the operation / stop of each of the air blowers, and the normal operation. Therefore, the blower device remains stopped due to a failure or the like, and power consumption is not increased due to a decrease in the ability to assist the air conditioner, and the ventilation environment is not lowered and the work environment is not deteriorated.

Embodiment 2. FIG.
FIG. 9 is a diagram illustrating the appearance of the front and bottom surfaces of the second embodiment of the blower according to the present invention. The difference from the first embodiment is that the lamp 24 is installed on the bottom plate 9 forming the bottom surface of the outer casing 11 in the present embodiment.

In the present embodiment, since the lamp 24 is installed on the bottom plate 9 that forms the bottom surface of the outer casing 11, it is possible to determine whether the blower is operating / stopped and normal even from the bottom plate 9 side that is orthogonal to the outlet 13 of the blower 10. It is possible to check whether or not
When the blower 10 is installed so as to blow air at an angle parallel to or close to the ceiling 23, if the lamp 24 is provided on the outlet 13 side as in the first embodiment, FIG. As shown in the figure, a blind spot is formed on the floor surface that is behind the irradiation angle of the lamp 24 and in which the light emission state of the lamp 24 cannot be confirmed. Therefore, when installing the blower 10 so as to blow at an angle close to parallel to the ceiling 23, by providing the lamp 24 on the bottom plate 9 as in the present embodiment, as shown in FIG. It is possible to prevent a blind spot from being able to confirm the light emission state of the lamp 24 from being formed on the floor surface.

  Since other aspects are the same as those in the first embodiment, a duplicate description is omitted.

Each of the above embodiments is an example of a preferred embodiment of the present invention, and the present invention is not limited to this.
For example, in the above-described embodiment, the case where the state of the blower is in operation / stop / failure is indicated by lighting / extinguishing / flashing of the lamp 24. However, the state of the blower is indicated by the light emission of the lamp 24. What is necessary is just to be able to distinguish according to a state, and you may show the state of an air blower in the light emission state different from said each embodiment. As an example, the operation / stop / failure of the blower can be indicated by turning off / lighting / flashing the lamp 24.
As described above, the present invention can be variously modified.

  As described above, the blower according to the present invention is useful in that it can easily determine the operation / stop of each of the plurality of blowers and whether or not the fan is operating normally. Suitable for installation and use.

9 Bottom plate 10 Blower 11 Outer casing 12 Suction port 13 Outlet 14 Top plate 15 Side plate 16 Wind tunnel 17 Screw 18 Mounting foot 19 Motor 19a Rotating shaft 20 Impeller 21 Mounting bracket 22 Building 23 Ceiling 24 Lamp 25 Screw 26 Angle pitch hole 27 guide

Claims (5)

A blower device in which a plurality of blowers having an electric motor and a fan that rotates using the electric motor as a drive source are installed in parallel,
Light emitting means provided corresponding to each of the blowers;
The light emitting means corresponding to each blower emits light with the first light emission pattern when the blower is normally operated, with the second light emission pattern when the blower is stopped, and with the third light emission pattern when abnormally operated. And an air blower characterized by comprising control means. Detecting means for detecting a current flowing through the electric motor;
The blower according to claim 1, wherein the control means causes the light emitting means to emit light in any one of the first to third light emission patterns according to a detection result of the detection means.   The blower according to claim 2, wherein when the current flowing through the electric motor is out of a predetermined threshold range, the control means causes the light emitting means to emit light in the third light emission pattern.   4. The blower according to claim 1, wherein the first light emission pattern is turned on, the second light emission pattern is turned off, and the third light emission pattern is blinking. 5. apparatus.   The color of the light emitted from the light emitting means is variable, and the third light emission pattern is light emission in a color different from that of the first light emission pattern. The blower described.

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