JP2013029260A - Blower device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blower device allowing selection of cool air blowout that achieves a widespread air blow as performed by an electric fan or the like and strong wind blowout that achieves agitating force as generated by a circulator or the like.SOLUTION: This blower 1 includes: a casing 10 which has a front suction opening 13, an upper outlet port 14 and a front outlet port 15 and which is formed therein with an air passage 16 for connecting the front suction opening 13, upper outlet port 14 and front outlet port 15; and an air blowing fan 20 circulating air sucked from the front suction opening 13 into the air passage 16. In the blower device, the front outlet port 15 has an opening formed wider than that of the upper outlet port 14, and an air direction switching means 30 is provided for switching an air direction so that the air circulated into the air passage 16 is blown out of one of the upper outlet port 14 and the front outlet port 15.

Description

  The present invention relates to a blower capable of selecting a cool air blowout like a fan and a strong wind blowout like a circulator.

  Conventionally, a fan that generates a soft breeze within a wide range and a short distance to obtain a cool feeling, and a highly straight wind that reaches a long distance in a narrow area generates indoor air. Circulators that circulate are known.

  As an example of an electric fan, there is an electric fan that can be used as a fan when the propeller fan is rotated forward and can be used as a circulator when the propeller fan is rotated backward (see, for example, Patent Document 1). However, when this fan is used as a circulator, the propeller fan is rotated in the reverse direction, so that the generated wind becomes weak and sufficient stirring power sufficient to circulate room air cannot be obtained.

  As an example of the circulator, there is a circulator that includes a blower that circulates air in the main body casing and has ventilation holes on the lower surface side and the upper surface side of the main body casing (see, for example, Patent Document 2). However, since this circulator has a narrow range of ventilation holes on the lower or upper surface side, it can blow air with sufficient agitation of air, but it can blow air over a wide range like a fan. However, there is a problem that comfort cannot be obtained when used as a fan.

Japanese Utility Model Publication No. 7-32431 JP 2002-61909 A

  In view of the above problems, an object of the present invention is to provide a blower device capable of selecting a cool wind blow that can provide a wide range of blowing air such as an electric fan and a strong wind blow that can obtain stirring power such as a circulator.

  In order to solve the above problems, the air blower of the present invention includes a suction port, an upper surface outlet, and a front surface outlet in a housing having a suction port, an upper surface outlet provided on the upper surface, and a front outlet provided on the front surface. A blower fan that forms an air passage to be connected and distributes the air sucked from the suction port to the air passage is provided. In this blower, the front air outlet has an opening wider than the upper air outlet, and the air direction is switched so that the air circulated through the air passage is blown out from either the upper air outlet or the front air outlet. The switching means is provided.

  According to the air blower of the present invention, the air direction switching means switches the wind direction so as to blow out from either the upper surface outlet or the front surface outlet, thereby providing a cool air outlet and a circulator capable of obtaining a wide range of air blowing like a fan. It is possible to provide a blower capable of selecting a strong wind blowing from which such a stirring force can be obtained.

It is a front view of the air blower by this invention. It is front sectional drawing which shows the inside of the air blower by this invention. It is AA sectional drawing of FIG. 1, and is explanatory drawing when a wind direction switching means is accommodated in the air path. It is AA sectional drawing of FIG. 1, and is explanatory drawing when a wind direction switching means is pulled out of an air path. It is explanatory drawing which shows the flow of the wind which blows off when a wind direction switching means uses the air blower accommodated in the air path in the room. It is explanatory drawing which shows the flow of the wind which blows off, when a wind direction switching means uses the air blower withdraw | derived out of the air path in the room.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 4 show a blower device in the present embodiment. As shown in FIG. 1 and FIG. 2, the blower 1 includes a vertically-long hollow casing 10, a blower fan 20 and a fan control unit 40 provided in the lower part of the casing 10, and a wind direction provided in the upper part of the casing 10. Switching means 30 is provided.

  The housing 10 has a front suction port 13 provided at the lower part of the front surface, an upper surface outlet 14 provided at the upper surface, and a front outlet 15 provided at the upper part of the front surface. In the housing 10, an air passage 16 that connects the front suction port 13, the upper air outlet 14, and the front air outlet 14 is formed, and a blower fan 20 that distributes air sucked from the front air inlet 13 to the air passage 16 is provided. ing. Mainly, the housing 10 is divided into an air guide duct portion 11, a housing portion 12 that houses the blower fan 20 and the fan control portion 40, and a front suction port 13 is provided in the housing portion 12, and an upper surface outlet 14 and the front air outlet 15 are provided in the air duct 11. The suction port may be provided on the side surface or the back surface of the accommodating portion 12.

  The air duct portion 11 has a cylindrical shape with an upper surface outlet 14 on the upper surface, and the front surface outlet 15 is formed in an opening wider than the upper surface outlet 14. A pair of stopper receiving portions 17 are formed at the front end portion of the upper surface outlet 14 formed in the air guide duct portion 11. The stopper receiving portion 17 is configured to restrict the forward rotation range of a wind direction switching means 30 described later.

  As shown in FIGS. 2 and 3, the blower fan 20 includes a sirocco fan 24 and a fan motor 25 connected to the sirocco fan 24 in a fan casing 21 having a suction portion 22 and a blowout portion 23. Yes. The blower fan 20 causes the air sucked from the suction portion 22 facing the front suction port 13 provided in the housing portion 12 to flow from the blowout portion 23 to the air passage 16 by the air guide duct portion 11 by the rotation of the fan motor 25. It is like that.

  As shown in FIGS. 1 to 4, the air direction switching means 30 includes a pair of left side plates 31, right side plates 32, and a plurality of wind guide plates 33. The left side plate 31 and the right side plate 32 are each formed in a parallelogram shape. The plurality of air guide plates 33 are arranged at regular intervals in parallel in the vertical direction so as to connect the left side plate 31 and the right side plate 32. Of the plurality of air guide plates 33, the uppermost air guide plate 33 is formed with a pair of stopper pieces 35 on the upper surface side corner and on the back side of the housing 10. Note that the plurality of air guide plates 33 do not necessarily have to be spaced at regular intervals in the vertical direction, and may be arranged in parallel.

  As shown in FIGS. 3 and 4, the wind direction switching means 30 has a rotating shaft 34 formed on the front surface side of the housing 10 at the lower ends of the left side plate 31 and the right side plate 32, and the rotating shaft 34 is supported by the housing 10. Yes. The wind direction switching means 30 is housed in the air passage 16 from the front outlet 15 or drawn out from the air passage 16 by rotating in the front-rear direction about the rotation shaft 34 by a drive motor (not shown) manually or not shown. The air direction can be switched so that the air circulated through the air passage 16 is blown out from either the upper surface outlet 14 or the front surface outlet 15.

  Next, the flow of wind when the wind direction switching means 30 is accommodated in the air passage 16 will be described with reference to FIG. When the air direction switching means 30 is accommodated in the air passage 16, among the plurality of air guide plates 33, the uppermost air guide plate 33 is disposed at a position in contact with the back surface of the housing 10, and the other air guide plates 33 are The closer to the blower fan 20, the farther away from the rear surface of the housing 10.

  When the fan motor 25 of the blower fan 20 is driven by the instruction of the fan control unit 40 and the sirocco fan 24 is rotated with the instruction of the fan control unit 40 in such an arrangement state of the air guide plates 33, the air in front of the blower 1 is indicated by a black arrow. Thus, the air is sucked in from the front suction port 13 and is circulated from the blow-out portion 23 of the blower fan 20 to the air passage 16. The air circulated through the air passage 16 strikes each baffle plate 33 provided in the air direction switching means 30 and is deflected to the air blown forward by the air flowing upward. As a result, in the blower device 1, the air sucked from the front suction port 13 can be blown out forward of the housing 10 from between the air guide plates 33 as indicated by black arrows.

  Next, the flow of wind when the wind direction switching means 30 is drawn out from the air passage 16 will be described with reference to FIG. When the air direction switching means 30 is pulled out from the air passage 16, the pair of stopper pieces 35 formed on the uppermost air guide plate 33 among the plurality of air guide plates 33 come into contact with the pair of stopper receiving portions 17. Then, forward rotation is restricted in a state where each air guide plate 33 is disposed in front of the front air outlet 15.

  When the fan motor 25 of the blower fan 20 is driven by the instruction of the fan control unit 40 and the sirocco fan 24 is rotated with the instruction of the fan control unit 40 in such an arrangement state of the air guide plates 33, the air in front of the blower 1 is indicated by a black arrow. In this way, the air is sucked in from the front suction port 13, is circulated from the blowing portion 23 of the blower fan 20 to the air passage 16, and is guided to the upper surface outlet 14. As a result, in the blower device 1, the air sucked from the front suction port 13 can be blown out from the upper surface outlet 14 to the upper side of the housing 10 as indicated by a black arrow.

  Next, the specific shape and action of the wind direction switching means 30 will be described with reference to FIG. In the wind direction switching means 30, the length b in the depth direction of each wind guide plate 33 is the same, and the length a in the depth direction of the left side plate 31 and the right side plate 32 is the length b in the depth direction of each wind guide plate 33. The height d of the left side plate 31 and the right side plate 32 is equal to the height e of the air guide duct portion 11. When the air direction switching means 30 is accommodated in the air passage 16, among the plurality of air guide plates 33, the uppermost air guide plate 33 is disposed at a position in contact with the back surface of the housing 10, and the other air guide plates. 33 is arranged at a position farther from the rear surface of the housing 10 as it is closer to the blower fan 20, and projects forward from the front air outlet 15. As a result, a uniform wind can be secured in the height direction of the blown wind as the wind blown forward from the wind direction switching means 30.

  In addition, the air direction switching means 30 includes a length a in the depth direction of the left side plate 31 and the right side plate 32 and a length b in the depth direction of each air guide plate 33 and a length c in the depth direction of the upper surface outlet 14. Are equal. For this reason, the rotation range of the wind direction switching means 30 by rotation of the rotating shaft 34 formed in the left side board 31 and the right side board 32 is small, and the wind direction switching means 30 can be reduced in size. Further, in the wind direction switching means 30, the length b in the depth direction of each baffle plate 33 and the length c in the depth direction of the upper surface outlet 14 are the same, so the wind direction switching means 30 is accommodated in the air passage 16. In this case, the upper air outlet 14 can be closed while minimizing the forward protrusion of the air guide plate 33.

  Next, the air flowing through the air passage 16 when the wind direction switching means 30 is accommodated in the air passage 16 will be specifically described with reference to FIG. The air circulated from the blower fan 20 to the air passage 16 is distributed according to the length in the depth direction of each air guide plate 33 accommodated in the air passage 16 from the front air outlet 14, and the electric fan is supplied from the entire front air outlet 15. Such a wide range of winds is blown out, so that a soft wind can be obtained in front of the blower 1.

  When the air flowing through the air passage 16 blows out from between the air guide plates 33 to the front of the housing 10, it receives a blowing resistance. The air blowing resistance is a combined resistance of the pipe resistance by the wind guide duct 11, the bending resistance by the wind guide duct 11 and each wind guide plate 33, and the pipe resistance by each wind guide plate 33. The pipe resistance is negligibly small compared to the bending resistance. And the edge part of each baffle plate 33 is arrange | positioned on the oblique side S of the left side board 31 and the right side board 32 which oppose the back side of the housing 10. As shown in FIG. For this reason, the wind blown forward from between the air guide plates 33 has a substantially uniform wind speed distribution, and can be blown over a wide range without deviation.

  Moreover, since the air circulated through the air passage 16 is a centrifugal blower using the sirocco fan 24 as the blower fan 20, the air is biased to the left side of the air outlet 23 when the blower fan 20 is viewed from the front shown in FIG. 2. Although the wind is distributed, airflow resistance is generated by the side wall of the air guide duct portion 11 on the left side plate 31 side. Is improved. For this reason, the wind blown forward from between the air guide plates 33 has a substantially uniform wind distribution, and a wide width wind can be blown out from the front outlet 15.

  Next, the air flowing through the air passage 16 when the wind direction switching means 30 is drawn out from the air passage 16 will be specifically described with reference to FIG. The air circulated through the air passage 16 communicates with the upper air outlet 14 without being blocked by the air direction switching means 30, and therefore becomes an air flow rising in the vertically long air guide duct portion 11, and the air flows from the upper air outlet 14 like a circulator. A strong wind can be obtained above the blower device 1 by blowing out a highly straight wind.

  The air flowing through the air passage 16 is subjected to blowing resistance when blown out from the upper surface outlet 14 to the upper side of the housing 10, but is different from the case where the air direction switching means 30 is accommodated in the air passage 16. Since only the duct resistance by the wind duct portion 11 is received without receiving the bending resistance by the wind duct portion 11 and each wind guide plate 33, the blowing resistance is sufficiently small. For this reason, the wind blown upward from the upper surface outlet 14 has almost no wind leaking forward between the air guide plates 33 and can be blown upward without loss.

  Further, the air circulated through the air passage 16 has a blowing resistance acting by the side wall of the air guide duct portion 11 on the left side plate 31 side, similarly to the case where the air direction switching means 30 is accommodated in the air passage 16. The wind blown upward from the air outlet 14 has a substantially uniform wind distribution.

  Here, the opening of the front outlet 15 is formed wider than the opening of the upper outlet 14. Therefore, the wind circulated from the blow-out unit 23 is blown out from the front blow-out port 15 as a wide range of cool breeze like a fan, and from the top blow-out port 14 as a strong breeze that can obtain a stirring force like a circulator.

  Next, the flow of wind blown out when the blower 1 in a state where the wind direction switching means 30 is accommodated in the air passage 16 is used in the room R will be described with reference to FIG. The blower 1 is arranged near the wall, sucks air in the room R from the front suction port 13 as indicated by a white arrow, and blows out from the air direction switching means 30 to the front of the room R as indicated by a white arrow. Become. For this reason, a wind having a width in the height direction is blown out in parallel with the floor surface F in the same manner as the height of the front outlet 15 of the housing 10.

  Next, the flow of the wind blown out when the blower 1 with the wind direction switching means 30 drawn out from the air passage 16 is used in the room R will be described with reference to FIG. The air blower 1 is arranged at the wall so as to face the air conditioner A, and the air in the room R is sucked in from the front suction port 13 provided at the lower part of the front surface as indicated by the white arrow, and the upper surface blower provided on the upper surface is provided. The wind blows upward from the exit 14 as indicated by the white arrow. For this reason, the wind blown upward becomes an updraft along the wall W as indicated by the white arrow, and then flows along the ceiling surface C, the wall W, and the floor surface F, and again from the front suction port 13. It is sucked and circulated, and the air in the room R can be effectively stirred. When the air blower 1 is used for air conditioning of the room R by the air conditioner A, cold air that tends to accumulate near the floor surface F and warm air that tends to accumulate near the ceiling C are agitated, so the temperature of the air in the room R The air distribution can be made uniform to prevent excessive cooling and heating, and to realize comfortable and energy-saving air conditioning. Moreover, when using the air blower 1 at the time of air-conditioning of the room R by the air conditioner A, since it becomes a wind which blows out upwards of the room R, it is made not to give a discomfort by the blow-off wind hitting a person directly. it can.

  According to the air blower 1 of the present invention described above, the front outlet 15 is formed in an opening wider than the upper outlet 14, and the air circulated through the air passage 16 is allowed to flow between the upper outlet 14 or the front outlet 15. Since it has a structure provided with the wind direction switching means 30 that switches the wind direction so as to blow from either one of them, a cool wind blow that provides a wide range of blowing air such as a fan, and a strong wind blow that provides stirring force such as a circulator Can be provided.

  In this embodiment, the rotation direction 34 is formed on the left side plate 31 and the right side plate 32 so that the wind direction switching means 30 is supported from the front outlet 15 so as to be accommodated in the air passage 16. The invention is not limited to this, and the wind direction switching means 30 may be supported so as to be accommodated in the air passage 16 from the front outlet 15 by forming slide members on the left side plate 31 and the right side plate 32, and the top surface. By forming a plurality of interlocking louvers in each of the air outlet 14 and the front air outlet 15, either the upper surface air outlet 14 or the front air outlet 15 may be closed by the louver.

DESCRIPTION OF SYMBOLS 1 Air blower 10 Housing 11 Air guide duct part 12 Accommodating part 13 Front suction inlet 14 Upper surface outlet 15 Front outlet 16 Air passage 17 Stopper receiving part 20 Blower fan 21 Fan case 22 Suction part 23 Blowout part 24 Sirocco fan 25 Fan motor 30 Wind direction switching means 31 Left side plate 32 Right side plate 33 Air guide plate 34 Rotating shaft 35 Stopper piece 40 Fan control unit

Claims (4)

An air passage connecting the suction port, the upper surface outlet, and the front outlet is formed in a housing having a suction port, an upper surface outlet provided on the upper surface, and a front outlet provided on the front surface. A blower device provided with a blower fan that circulates the sucked air through the air passage,
The front outlet is formed in an opening wider than the upper outlet.
An air blower comprising a wind direction switching means for switching a wind direction so that the air circulated through the air passage is blown out from either the upper surface outlet or the front outlet. The wind direction switching means includes a plurality of wind guide plates parallel to the vertical direction, and is supported so as to be accommodated in the air passage from the front outlet.
When the air direction switching means is accommodated in the air passage, the air direction is switched so as to blow out from between the plurality of air guide plates, and when the air direction switching means is drawn out of the air passage, the upper surface outlet The air blower according to claim 1, wherein the air direction is switched so as to blow out from the air.   When the air direction switching means is accommodated in the air passage, the air guide plate that is closer to the blower fan among the plurality of air guide plates is disposed at a position away from the rear surface of the housing. The blower according to claim 2.   When the air direction switching means is housed in the air passage, of the plurality of air guide plates, the air guide plate closer to the blower fan projects forward from the front outlet. The air blower according to claim 3.

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