JP6019384B2 - Blower - Google Patents

Description

  The present invention relates to an air blower such as a fan or a ceiling fan that is installed on a ceiling, wall, or floor surface in a living room and is used for reducing the temperature of sensation caused by direct airflow or circulating the air in the room.

  Conventionally, this type of air blower includes an impeller and a motor in a base serving as a pedestal, and air is circulated so as to blow out horizontally from an annular air blower provided at the top of the base. In addition, a home blower that generates a flow of air is known (for example, see Patent Document 1).

  Hereinafter, the blower will be described with reference to FIGS. 4 and 5.

  4 is a projection view of the blower assembly 100 as viewed from the front, and FIG. 5 is a cross-sectional projection view of the blower assembly 100. The blower assembly 100 has an annular nozzle 101 that defines a central opening 102. A motor 122 that creates an air flow through the annular nozzle 101 is disposed within the base 116 along with the motor housing 126. Further, the impeller (impeller) 130 is connected to a rotating shaft extending outward from the motor 122, and the motor 122 in which the diffuser 132 is positioned downstream of the impeller 130 is connected to an electrical connection unit and a power source. A plurality of selection buttons 120 allow the user to operate the blower assembly 100.

  With the above configuration, the above-described blower assembly 100 operates as follows.

  The motor 122 is driven by the user appropriately selecting from a plurality of selection buttons 120. Thus, the motor 122 is activated and air is drawn into the blower assembly 100 through the air inlet 124. Air flows through the outer casing 118 to the inlet 134 of the impeller 130. The air flow that exits the outlet 136 of the diffuser 132 and the exhaust portion of the impeller 130 is divided into two air flows that travel in opposite directions through the internal passage 110.

  The air flow is throttled as it enters the mouth 112 and is further throttled at the outlet 144 of the mouth 112. This throttling creates pressure in the system.

  The air flow thus created overcomes the pressure produced by the restriction and the air flow exits through the outlet 144 as the primary air flow. The primary air flow is concentrated or focused toward the user depending on the arrangement of the guide portion 148. The secondary air flow is generated by entrainment of air from the outside environment, particularly from the area around the outlet 144 and around the outer edge of the annular nozzle 101. This secondary air flow passes through the central opening 102 where there is a total air flow that mixes with the primary air flow and is discharged forward from the blower assembly 100.

JP 2010-077969 A

  In such a conventional blower, because the nozzle is closed in an annular shape, the airflow blown out from here has a high-speed wind speed distribution in a closed annular shape. In order to widen the blowing range, there is a problem that the blowing device is large and complicated, such as increasing the annular nozzle and providing a swing mechanism.

  Therefore, the present invention solves the above-described conventional problems, and an object of the present invention is to provide a compact blower device that can easily blow air from a fixed nozzle to a wide range.

In order to achieve this object, the present invention provides a high-pressure air generating unit, a fluid element nozzle unit disposed on the downstream side of the high- pressure air generating unit, and the high-pressure air in a box having a suction port and an outlet. An air blower including a high-pressure air air passage that communicates between an air generation unit and the fluid element nozzle unit, the high-pressure air generation unit including an impeller that generates high-pressure air from air sucked from the suction port and the blade The fluid element nozzle unit includes a motor for driving a vehicle, and the fluid element nozzle portion includes: an inflow port through which an airflow flows; the air outlet that expands toward the outside; an element main flow path that communicates the air outlet from the inflow port; A cross section in a direction perpendicular to the air flow of the inflow port, the blowout port, and the element main flow path is a substantially rectangular slit shape, and the circulation air flow path includes a long side of the element main flow path, The same width on the long side of the element main flow path Communicating with the surface on the long side of the element main channel on the opposite side from the surface, to vibrate the airflow blown from the outlet in the direction of the short side of the element main channel, and a part of the circulation air path It arrange | positions in the said high pressure air air path, a part of the said circulation air path is branched into at least 3 air paths, and it arrange | positions at intervals between air paths , from the said high pressure air generation | occurrence | production part to the said fluid element nozzle part. The air blower is characterized in that the airflow flowing into the inflow port flows through the interval , and thereby achieves the intended purpose.

According to the present invention, in a box having a suction port and a blower outlet, a high-pressure air generation unit, a fluid element nozzle unit disposed on the downstream side of the high-pressure air generation unit, the high-pressure air generation unit, and the fluid element nozzle A high-pressure air air passage that communicates with a portion, wherein the high-pressure air generation unit includes an impeller that generates high-pressure air with air sucked from the suction port, and a motor that drives the impeller, The fluid element nozzle unit includes an inlet through which an airflow flows, the air outlet that expands toward the outside, an element main passage that communicates the air outlet to the air outlet, and a circulation air passage. The cross section of the air outlet and the element main channel in the direction perpendicular to the air flow is a substantially rectangular slit shape, and the circulation air channel has the same width as the long side of the element main channel and the width of the element main channel. The element mainstream on the opposite side from one side on the long side A portion of the circulation air passage is disposed in the high-pressure air air passage. A part of the circulation air passage is branched into at least three air passages and arranged with an interval between the air passages, and an air flow flowing from the high-pressure air generating portion to the inlet of the fluid element nozzle portion is the interval. Since the air flow device can be vibrated in the short side direction of the element main flow path by the fluid element nozzle portion, it is fixed without having a swing mechanism or a movable nozzle. A wide range of air can be blown from the nozzle.

In particular , since the circulation air passage can be arranged in the high-pressure air air passage, it is not necessary to arrange the circulation air passage avoiding the high-pressure air air passage, and thus the blower can be made compact. .

The perspective view of the air blower of Embodiment 1 of this invention The block diagram which shows the cross section of the air blower of Embodiment 1 of this invention (A) The block diagram which shows a cross section perpendicular | vertical to the blower outlet long side of the air blower of Embodiment 1 of this invention, (b) The cross section parallel to the blower outlet long side of the air blower of Embodiment 1 of this invention. Configuration diagram Front view showing an example of conventional technology Sectional drawing which shows an example of a prior art

According to a first aspect of the present invention, a blower includes a high pressure air generating unit, a fluid element nozzle unit disposed on the downstream side of the high pressure air generating unit, and the high pressure air generating unit in a box having a suction port and an outlet. A high-pressure air flow path communicating with the fluid element nozzle unit, wherein the high-pressure air generating unit includes an impeller that generates high-pressure air from the air sucked from the suction port, and the impeller. The fluid element nozzle unit includes an inflow port through which airflow flows, the air outlet that expands outward, an element main channel that communicates the air outlet to the air outlet, and a circulation air channel The cross section in the direction perpendicular to the air flow of the inlet, the outlet, and the element main flow path is a substantially rectangular slit shape, and the circulation air path has the same width as the long side of the element main flow path From the long side of the element main flow path. The air flow is communicated with the surface on the long side of the element main flow channel on the side, and the air flow blown out from the outlet is vibrated in the short side direction of the element main flow channel. It arrange | positions in an air path, a part of said circulation air path is branched into at least 3 air paths, and it arrange | positions at intervals between air paths, and it is from the said high pressure air generation | occurrence | production part to the inflow port of the said fluid element nozzle part. The inflowing airflow flows through the interval . As a result, since the air flow can be vibrated in the short side direction of the element main flow path by the fluid element nozzle portion, it is possible to blow air over a wide range from the fixed outlet without providing a swing mechanism or a movable nozzle.

  Furthermore, the circulation air passage can be arranged in the high-pressure air air passage, and it is not necessary to arrange the circulation air passage avoiding the high-pressure air air passage, so that the blower can be made compact. There is an effect.

Further, the total cross-sectional area of the circulation air passage branched in the circulation air passage and the cross-sectional area of the circulation air passage not branched may be substantially constant. Thereby, the pressure loss in the circulation air passage can be reduced, the air flow can be stably generated over a wide range, and the comfort can be enhanced.

  Moreover, you may make it the structure by which the branch part of the said circulation air path was arrange | positioned at equal intervals. Thereby, the high-pressure air that has flowed between the branch portions of the circulation air passage can be rectified and pressure loss can be reduced, the air volume of the airflow coming from the outlet can be maintained, and comfort can be improved. There is an effect.

  The cross-sectional shape of the branch portion of the circulation air passage may be a streamlined shape in the flow direction of high-pressure air. Thereby, the pressure loss in a high pressure air wind path can be reduced, the air volume of the airflow which exits from a blower outlet can be maintained, and there exists an effect that comfort can be improved.

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

(Embodiment 1)
As shown in FIGS. 1, 2, and 3, the blower 10 includes a high-pressure air generator 12 and a fluid element nozzle unit 13, and a high-pressure air air passage 14 that communicates the high-pressure air generator 12 and the fluid element nozzle unit 13. The air flow is blown out while oscillating in the direction of the arrow in FIG. Here, high-pressure air refers to air at atmospheric pressure or higher.

  The high-pressure air generation unit 12 includes an impeller 16 for generating high-pressure air and a motor 17 for driving the impeller 16. The high-pressure air generation unit 12 is air sucked from an intake port 15 for taking in air provided in the box 11. High pressure air is generated and sent to the high pressure air passage 14.

  The fluid element nozzle unit 13 includes an inflow port 18 into which airflow flows, an air outlet 19 that expands toward the outside, an element main flow path 20 that communicates from the inflow port 18 to the air outlet 19, and a circulation air path 21. The cross section in the direction perpendicular to the air flow of the inlet 18, the outlet 19, and the element main flow path 20 has a substantially rectangular slit shape, and as shown in FIG. The element 20 has a same width as the long side of the path 20 and communicates from one side on the long side of the element main channel 20 to the surface on the long side of the element main channel 20 on the opposite side. It vibrates in the direction of 20 short sides.

  In the present embodiment, the box body 11 and the fluid element nozzle portion 13 are integrated, and the high pressure air air passage 14 is formed by the box body 11.

  At this time, a part of the circulation air passage 21 is arranged in the high-pressure air air passage 14, and a portion of the circulation air passage 21 in the high-pressure air air passage 14 is branched into a plurality (eight in FIG. 2). There is a gap between the air paths. At this time, the interval between the air passages has an opening ratio of 50% or more even in a cross section (A-A cross section shown in FIG. 3B) in which the air passage is the narrowest with respect to the air flow. It is desirable because the pressure loss can be minimized.

  According to such a configuration, it is possible to blow air over a wide range from the fixed air outlet 19 without providing a swing mechanism or a movable nozzle.

  Furthermore, since the circulation air passage 21 can be arranged in the high-pressure air air passage 14, it is not necessary to arrange the circulation air passage 21 avoiding the high-pressure air air passage 14, so that the blower 10 can be made compact. it can.

  The expansion angle of the air outlet 19 is preferably about 20 to 45 degrees because the oscillation of the airflow can be stably obtained. This is desirable because it is a number. Moreover, it can comprise with known resin, metals, such as PP and ABS, as a material which comprises the fluid element nozzle part 13. FIG. At this time, the vibration frequency is preferably about 1 Hz to 200 Hz because vibrations, that is, the presence or absence of a direct airflow can be experienced.

  The circulation air passage 21 is preferably a single air passage in the vicinity of the element main flow passage 20 instead of being branched. This is because, in a state where the circulation air passage 21 is branched, an equal pressure is not generated along the long side of the element main flow passage 20, and the oscillation of the airflow from the air outlet 19 becomes unstable. Here, the vicinity of the element main flow path 20 requires at least 10 mm from the element main flow path 20 along the circulation air path 21 and is disposed so as to cross the high-pressure air air path 14 as shown in FIGS. It is desirable to branch off only the part that has been changed.

  Further, by making the cross-sectional area of the circulation air passage 21 substantially constant, the pressure loss in the circulation air passage 21 can be reduced, so that an air flow can be stably generated over a wide range. As shown in FIG. 3 (b), a circulation air passage 21a in which the circulation air passage 21 is a single air passage and a circulation air passage 21b in the high-pressure air air passage 14 that is branched. The total cross-sectional area is the same cross-sectional area.

  Further, by arranging the branch portions of the circulation air passage 21 at equal intervals, the high-pressure air flowing between the branch portions of the circulation air passage 21 is rectified and the pressure loss is reduced. The air volume of the exiting airflow is maintained.

  In addition, since the cross-sectional shape of the branch portion of the circulation air passage 21 is streamlined in the flow direction of the high-pressure air, the vortex generated when the high-pressure air hits the branch portion can be reduced, and the pressure loss can be reduced. The air volume of the airflow exiting from the outlet 19 is maintained.

  The air blower according to the present invention eliminates anxiety due to contact by including the impeller, and the nozzle structure using the fluid element technology can easily generate a wide range of air currents with a compact air blower and improve comfort. Therefore, it is installed as a ceiling or a wall in a living room, and is useful as various blower devices used to reduce the temperature of the sensible temperature by direct air flow and to circulate indoor air.

DESCRIPTION OF SYMBOLS 10 Air blower 11 Box 12 High pressure air generating part 13 Fluid element nozzle part 14 High pressure air wind path 15 Suction inlet 16 Impeller 17 Motor 18 Inlet 19 Outlet 20 Element main flow path 21 Circulating air path 21a Circulating wind not branched Path 21b Circulating air path branching 100 Blower assembly 101 Annular nozzle 102 Central opening 110 Internal passage 112 Port 116 Base 118 Outer casing 120 Selection button 122 Motor 124 Air inlet 126 Motor housing 130 Impeller 132 Diffuser 134 Inlet 136 Outlet 144 Exit 148 Guide part

Claims (4)

In the box with the inlet and outlet,
A high-pressure air generating unit, and a fluid element nozzle unit disposed on the downstream side of the high-pressure air generating unit ,
A blower device comprising a high-pressure air air passage that communicates the high-pressure air generation part and the fluid element nozzle part,
The high-pressure air generating unit includes an impeller that generates high-pressure air with the air sucked from the suction port, and a motor that drives the impeller.
The fluid element nozzle portion includes an inlet into which an airflow flows, the air outlet that expands toward the outside, an element main passage that communicates the air outlet from the inlet, and a circulation air passage.
The cross section in the direction perpendicular to the air flow of the inlet, the outlet and the element main flow path has a substantially rectangular slit shape,
The circulation air passage has the same width as the long side of the element main flow channel and communicates from one surface on the long side of the element main flow channel to the surface on the long side of the element main flow channel on the opposite side. The air flow to be oscillated in the short side direction of the element main flow path,
A part of the circulation air passage is arranged in the high-pressure air air passage, a part of the circulation air passage is branched into at least three air passages, and the air passages are spaced apart, and the high-pressure air is generated. An air blower characterized in that an airflow flowing from the section into the inlet of the fluid element nozzle section flows through the interval . The blower according to claim 1, wherein the total cross-sectional area of the circulation air passage branched in the circulation air passage and the cross-sectional area of the circulation air passage not branched are substantially constant. The air blower according to claim 1 or 2, wherein branch portions of the circulation air passage are arranged at equal intervals. The blower according to any one of claims 1 to 3, wherein a cross-sectional shape of a branch portion of the circulating air passage is a streamlined shape in a flow direction of high-pressure air.

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