JP5381365B2 - Blower - Google Patents

Description

  The present invention relates to a blower used for a ventilation air conditioner or the like.

  Conventionally, this type of blower is known to be a ceiling-embedded ventilation fan in which a main body is installed on a ceiling or the like, and communicates with the outdoors via a duct to discharge indoor contaminated air to the outdoors (for example, Patent Document 1). reference). Hereinafter, the blower will be described with reference to FIG. As shown in FIG. 9, a box-shaped frame 104 having a suction port 102 covered with a louver 101 on the lower surface and provided with a blow-out port 103 on a side surface, an adapter 106 for connecting a duct 105 communicating with the outdoors, and a frame 104 includes a scroll-shaped casing 108 having an orifice 107 as a suction port on the lower surface, a centrifugal fan impeller 109 for blowing air into the casing 108, and an electric motor 110 for rotationally driving the centrifugal fan impeller 109. It is composed.

JP 2003-065581 A

  In such a conventional air blower, since it is configured to clean dirt such as dust accumulated on the impeller while facing upward with the grill removed, the inside of the air blower is The problem was that it was difficult to clean dirt such as dust accumulated on the impeller because it was dim and it was difficult to understand the state of dirt on the impeller.

Therefore, the present invention solves the above-described conventional problems, and it is an object of the present invention to provide a blower device that can easily check the degree of dirt on the impeller when cleaning, and can improve maintainability. Yes.

In order to achieve this object, the present invention provides a box-shaped frame having an open surface, a casing having a suction port inside the frame, an impeller inside the casing, and the impeller rotating. an electric motor for driving, the wind system feed comprising an irradiation means for irradiating light to the impeller including blades pressure side of the impeller, provided with a louver in the opening of the frame, the removal of the louver On the other hand, it comprises a detecting means for detecting the removal of the louver and a control means for activating the irradiating means based on the detection by the detecting means , thereby performing the intended purpose, that is, cleaning. when the degree of contamination of the impeller Save time to start the irradiation means it can be easily confirmed, that it is possible to provide a blower capable of improving maintainability It is intended to achieve the target.

According to the present invention, there is provided irradiation means for irradiating light to the impeller including the blade pressure surface side of the impeller that is easily attached with dirt , the louver is provided at the opening of the frame, and the louver is removed. On the other hand, the detection means for detecting the removal of the louver and the control means for activating the irradiation means based on the detection of the detection means, thereby removing the louver when cleaning the irradiation means. Therefore, it is possible to save the trouble of starting the irradiating means and to easily check the degree of dirt adhering to the impeller, so that it is possible to improve the maintainability .

The perspective view which shows the centrifugal blower of Embodiment 1 of this invention. Cross-sectional side view Block diagram of the control device Sectional view perpendicular to the axial direction of the detachable structure Cross-sectional side view Side sectional view which shows the centrifugal blower of Embodiment 2 of this invention. Cross-sectional side view Side sectional view which shows the centrifugal blower of Embodiment 3 of this invention. Side sectional view showing a conventional centrifugal blower

The blower device according to claim 1 of the present invention is a box-shaped frame having one open surface, a casing having a suction port inside the frame, an impeller inside the casing, and rotationally driving the impeller. an electric motor, the wind system feed comprising an irradiation means for irradiating light to the impeller including blades pressure side of the impeller, provided with a louver in the opening of the frame, with respect to removal of said louvers And a detection means for detecting the removal of the louver and a control means for activating the irradiation means based on the detection by the detection means . Thus, among the blower, by irradiating light to the impeller including the blade pressure side of the attachment easy impeller dirt, can the state of cleanliness of the impeller easily ascertained, Since the irradiating means emits light in accordance with the removal of the louver at the time of cleaning, it is possible to save the trouble of starting the irradiating means and improve the maintainability.

  Moreover, you may comprise a detection means with a limit switch. Thereby, since ON / OFF of a limit switch can be used for detection of louver removal, there exists an effect that the mechanism of the interlocking of louver removal and light emission means can be produced easily.

  The limit switch may be disposed in combination with the louver attaching / detaching mechanism. Thus, by combining with the louver attaching / detaching mechanism, there is an effect that a mechanism for linking the louver and the irradiating means can be easily manufactured.

  The limit switch may be a louver attaching / detaching mechanism. Thereby, since the limit switch is a louver attaching / detaching mechanism, the limit switch can also be used as the louver attaching / detaching mechanism, and it is not necessary to provide the limit switch and the louver attaching / detaching mechanism separately, and the space inside the blower can be saved. There is an effect.

  Further, the control means may be configured to control ON / OFF of the light emitting means based on detection by the detection means. Thereby, since the irradiation means can be controlled based on the detection of the detection means, there is an effect that it is possible to easily produce a mechanism for removing the louver and linking the irradiation means.

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

(Embodiment 1)
As shown in FIGS. 1 and 2, for example, a centrifugal blower 1 used as a ceiling-embedded ventilation fan attached to a ceiling to ventilate a space such as a bathroom or a toilet has a frame 2 and an inside of the frame 2. A centrifugal impeller 5, an electric motor 6 that rotationally drives the centrifugal impeller 5, and an adapter 8 that communicates with each other through an opening in the side surface 7 of the frame 2 inside a scroll-shaped casing 4 having a bell mouth-shaped suction port 3. The louver 9 attachment / detachment mechanism 14 that covers the opening 13 of the frame 2, for example, a limit switch 10 as detection means for detecting the removal of the louver 9, and irradiation means for irradiating light toward the impeller For example, it is the structure provided with the control apparatus 12 provided with the light emitting diode 11. FIG.

  In FIG. 3, the control device 12 detects the removal of the louver 9 by using, for example, ON / OFF of the limit switch 10 as the detection means, and based on the detection, the microcomputer 15 is released to emit light as the irradiation means. The start-up of the diode 11 is controlled. When the louver 9 is removed while the centrifugal blower 1 is stopped, the limit switch 10 as the detecting means is turned on and at the same time, the light emitting diode 11 as the irradiating means is turned on to irradiate the centrifugal impeller 5 with light, When the louver 9 is attached, the limit switch 10 serving as the detecting means is turned off, and at the same time, the light emitting diode 11 serving as the irradiating means is turned off.

  4A shows a state in which the louver 9 is inserted into the attaching / detaching mechanism 14, and the limit switch 10 as the detecting means is blocked by the louver 9 and does not contact the contact terminal 17, and is turned off. FIG. 4B shows a state in which the louver 9 is removed from the attachment / detachment mechanism 14, and the limit switch 10 as the detection means is brought into an ON state by contacting the contact terminal 17. It has a configuration.

  Simultaneously with the removal of the louver 9, the limit switch 10 as the detection means is turned on, and the light emitting diode 11 as the irradiation means irradiates the centrifugal impeller 5 with light.

  Further, the light emitting diode 11 as the irradiating means is configured to start even when the electric motor 6 is stopped.

  In addition, the light emitting diode 11 as an irradiating means has, for example, a structure in which the light emitting diode 11 is inserted into a power supply terminal and can be easily attached and detached with one touch.

  According to such a configuration, when the centrifugal impeller 5 is rotated by applying a driving force from the electric motor 6, the suction air passes through the louver 9, the opening 13 of the frame 2, and the suction port 3 of the casing 4. The pressure is increased by being guided to the centrifugal impeller 5, and the dynamic pressure is gradually converted into a static pressure when passing through the casing 4, and is discharged to the outside from the discharge port 16 through the adapter 8.

  At this time, dirt such as dust in the air accumulates on the centrifugal impeller 5 depending on the operation time, and a decrease in the air volume, an increase in noise, a fall of dust, etc. occur. I need to clean it. When the louver 9 is removed while the centrifugal blower 1 is stopped, the limit switch 10 as the detecting means is turned ON, and at the same time, the light emitting diode 11 as the irradiating means is turned on to irradiate the centrifugal impeller 5 with light. It becomes easy to check the degree of contamination of the centrifugal impeller 5 and can be easily cleaned.

  As described above, by irradiating light from the light emitting diode 11 as the irradiating means toward the centrifugal impeller 5, it is possible to easily confirm the degree of dirt accumulated on the centrifugal impeller 5 and facilitate cleaning.

  Further, by arranging the control device 12 at a position where the suction port 3 is not blocked, it is possible to easily produce a structure that does not hinder the inflow of air and does not adversely affect the ventilation function.

  Further, since the light emitting diode 11 as the irradiation means is disposed in the space between the casing 4 and the frame 2, light is irradiated directly from the vicinity of the opening 13 toward the centrifugal impeller 5, so that the light is directly observed. It is possible to check the degree of dirt without hitting.

  Further, the light emitting diode 11 as the irradiating means has a structure that can be easily attached and detached by inserting it into the power supply terminal, and the light emitting diode 11 as the irradiating means adheres to the light emitting diode 11 as the irradiating means. It becomes easy to clean the dirt and replace when the light emitting diode 11 as the irradiation means has reached the end of its life, thereby improving maintenance.

  Further, simultaneously with the removal of the louver 9, the limit switch 10 as the detecting means is turned on, the light emitting diode 11 as the irradiating means is turned on, and the trouble of turning on the light emitting diode 11 as the irradiating means can be saved, thereby improving maintainability. .

  Further, since the detection means is constituted by the limit switch 10, it is possible to easily produce a mechanism for detaching the louver 9 and interlocking the light emitting diode 11 as the irradiation means by turning the limit switch 10 ON / OFF.

  Further, by combining the limit switch 10 with the attaching / detaching mechanism 14 of the louver 9, it is possible to easily produce a mechanism for detaching the louver 9 and interlocking the light emitting diode 11 as the irradiation means.

  Further, since the limit switch 10 is also used as the attaching / detaching mechanism 14 for the louver 9, it is not necessary to separately provide the attaching / detaching mechanism for the limit switch 10 and the louver, and the space inside the centrifugal fan 1 can be saved.

  Further, the control device 12 controls the ON / OFF of the light emitting diode 11 as the irradiating means via the microcomputer 15, thereby easily creating a mechanism for linking the louver 9 and the light emitting diode 11 as the irradiating means. it can.

  Moreover, since the light emitting diode 11 as an irradiating means is started even when the centrifugal blower 1 is stopped, the centrifugal impeller 5 can be easily cleaned, and the maintainability can be improved.

  Further, since the light emitting diode 11 as the irradiating means is formed of a light emitting diode, the life of the light emitting diode 11 as the irradiating means can be extended.

  In the embodiment, the number of the light emitting diodes 11 as the irradiating means is one. However, a plurality of light emitting diodes 11 may be arranged. As shown in FIG. By arranging a plurality so as to be symmetric with respect to each other, light hits from a plurality of directions and the amount of light increases, so that the degree of contamination can be more easily confirmed than in the case of one.

(Embodiment 2)
In FIG. 6, the same components as those in FIGS. 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 6 shows a configuration in which a light emitting diode 11 as an irradiation means is provided between the casing 4 and the centrifugal impeller 5.

  In the above configuration, the light emitting diode 11 as the irradiating means irradiates light perpendicularly to the blades of the centrifugal impeller 5 and irradiates light through the gaps between the blades, so that the degree of contamination of the centrifugal impeller 5 is confirmed. This makes it easier to clean.

  As described above, by irradiating light from the light emitting diode 11 as the irradiating means in a direction perpendicular to the blades of the centrifugal impeller 5, it is possible to easily confirm the degree of dirt accumulated on the centrifugal impeller 5 and to facilitate cleaning. it can.

  Further, by providing the light emitting diode 11 as the irradiation means between the casing 4 and the centrifugal impeller 5, the internal appearance of the centrifugal blower 1 can be made clear.

  In the embodiment, the number of the light emitting diodes 11 as the irradiating means is one. However, a plurality of light emitting diodes 11 may be arranged. As shown in FIG. By arranging a plurality so as to be symmetric with respect to each other, light hits from a plurality of directions and the amount of light increases, so that the degree of contamination can be confirmed more easily than in the case of one.

(Embodiment 3)
8, the same components as those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof is omitted.

  FIG. 8 shows a configuration in which the light emitting diode 11 as the irradiation means is provided in the inner peripheral space of the centrifugal impeller 5.

  In the above configuration, the light emitting diode 11 as the irradiating means can uniformly illuminate the entire circumference from the inner side to the outer side of the centrifugal impeller 5, so that the degree of contamination of the centrifugal impeller 5 can be easily confirmed. .

  Since the blower according to the present invention can easily check the degree of contamination of the impeller and facilitate the cleaning of the impeller, it is useful as a blower used in ventilation air conditioners and the like. It is.

DESCRIPTION OF SYMBOLS 1 Centrifugal blower 2 Frame 3 Suction port 4 Casing 5 Centrifugal impeller 6 Electric motor 7 Side surface 8 Adapter 9 Louver 10 Limit switch 11 Light emitting diode 12 Controller 13 Opening part 14 Detachment mechanism 15 Microcomputer 16 Discharge port 17 Contact terminal

Claims (5)

A box-shaped frame, one side of which is an opening, a casing having an inlet to the inside of the frame, and the impeller inside the casing, a motor for rotating the impeller, the blade pressure side before Symbol impeller in wind device feed comprising an irradiation means for irradiating light to said impeller including, provided with a louver in the opening of the frame, with respect to removal of the louver, a detecting means for detecting the removal of said louvers And an air blower characterized by comprising control means for activating the irradiating means based on detection by the detecting means . The air blower according to claim 1 , wherein the detecting means is constituted by a limit switch. The blower according to claim 2 , wherein the limit switch is disposed in combination with the attaching / detaching mechanism of the louver. The blower according to claim 3 , wherein the limit switch is a louver attaching / detaching mechanism. The blower according to any one of claims 1 to 4 , wherein the control unit controls ON / OFF of the light emitting unit based on detection by the detection unit.

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