JP2016194275A - Blower - Google Patents

Abstract

An object of the present invention is to make it easy to feel fluctuations in fluctuating wind when using a blower nearby, and to further enhance the feeling of use. SOLUTION: A blade 210 provided in a first air passage 400 communicating with a first air suction port and a first air outlet, a motor 206 for rotating the blade 210, and a rotation speed of the motor 206 are set. A control means for controlling, and a fluctuating air on / off switch 13 for setting a fluctuating air mode for changing the amount of air blown from the blades by the control means in a time series, the second air inlet and the second A second air passage 402 that communicates with the air blowout port of the first airflow, and a first wind that communicates the blade 210 and the first air blowout port along the inner surface of the main body case 1 at the upper portion of the main body case 1. A first downstream air passage 401, which is a part of the passage 400, is provided, and the second downstream air passage 402 penetrates the first downstream air passage 401, thereby further enhancing the feeling of use. [Selection] Figure 5

Description

  The present invention relates to a blower that blows fluctuating air.

  Conventionally, this type of blower is known to include a fan and a motor that rotates the fan, and to which a blower function having a 1 / f fluctuation characteristic is added (see, for example, Patent Document 1).

JP-A-8-247085

  In such a conventional blower, the air behind the fans is blown forward of the fans by the rotation of the five propeller fans. The air blown by the propeller fan travels while spirally turning around the rotation axis direction of the propeller fan as a central axis. Since the turning speed is high near the propeller fan, the turbulence of the blowing is large, and when the propeller fan is separated from the propeller fan, the turning speed becomes slow and the turbulence of the blowing is reduced. If the turbulence is large, it becomes difficult to feel fluctuations in fluctuating winds such as 1 / f fluctuations. When fluctuating wind is blown by the propeller fan, fluctuation of the fluctuating wind is easily felt at a position away from the fan, but fluctuation of the fluctuating wind is less likely to be felt near the fan.

  Therefore, the present invention solves the above-described conventional problems, and an object of the present invention is to provide a blower device with improved comfort by making it easy to feel fluctuations in fluctuating wind even when the blower device is used nearby. And

  In order to achieve this object, the present invention provides a substantially spherical main body case having first and second air outlets and first and second air inlets, and the first air inlet. A blade provided in a first air passage communicating the opening and the first air outlet, a motor for rotating the blade, a control means for controlling the number of revolutions of the motor, and the control means The second air communication port includes a fluctuating air setting switch that sets a fluctuating air mode that changes the amount of air blown from the blades in time series, and communicates with the second air inlet and the second air outlet. A first air passage that is part of the first air passage that communicates the blade and the first air outlet along the inner surface of the main body case at an upper portion of the main body case. A downstream air passage, and the second air passage passes through the first downstream air passage. Is obtained by a blowing device according to claim Rukoto, thereby it is to achieve the intended purpose.

  According to the present invention, a substantially spherical main body case including first and second air outlets and first and second air inlets, the first air inlet and the first air outlets. A blade provided in a first air passage communicating with the outlet, a motor that rotates the blade, a control unit that controls the number of rotations of the motor, and a large amount of air blown from the blade by the control unit A fluctuating wind setting switch that sets a fluctuating wind mode that changes the time series, and includes a second air passage that communicates with the second air inlet and the second air outlet, The upper part of the main body case includes a first downstream air passage that is a part of the first air passage that communicates the blade and the first air outlet along the inner surface of the main body case. Because the second downstream air passage penetrates the first downstream air passage. , Air is turning the first downstream air passage 401 strikes the outer surface of the plurality extending through the first downstream air passage second air passage, the turning is suppressed. As a result, the turning speed becomes slow near the air blower, and even when the air blower is used nearby, it is easy to feel the fluctuation of the fluctuating air in the fluctuating air mode that changes the air volume in time series. Can be obtained.

External view of the air blower according to Embodiment 1 of the present invention Exploded side view of the blower Cross section of the blower The top view which looked at the 1st frame and the 1st air passage member of the air blower from the air blowing side pole The conceptual diagram which shows the ventilation pattern of the air blower Cross section of the blower Cross section of the blower Sectional view of the air outlet of the blower It is an expanded sectional view of the air blower outlet of the blower. The figure which shows the air blower outlet of the air blower Front view of the air blower outlet

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.

  In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not. Moreover, the same number is attached | subjected about the same site | part through all the drawings. Furthermore, in each drawing, the description of the details of each part not directly related to the present invention is omitted.

  Hereinafter, the air blower according to Embodiment 1 of the present invention will be described.

  FIG. 1 is an external view of an air blower according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the main body case 1 has a substantially spherical shape, and has a central axis 2 that virtually penetrates the center of the spherical body as an axis center.

  The central shaft 2 is in point contact with a spherical air blowing side electrode 3 and a suction side electrode 4 facing the air blowing side electrode 3. In addition, the substantially spherical shape here means that a sphere is formed at a glance, and is an expression that takes into consideration that a part of the surface of the sphere does not become a true sphere due to unevenness on the surface of the sphere due to an opening or the like described later. That is, even if it does not become a true sphere, it is included in a substantially spherical shape when it forms a sphere at first glance.

  The main body case 1 includes a first frame 6 having a substantially hemispherical shape with a cut surface 5 perpendicular to the central axis 2 at a position equidistant from both spherical poles (the ventilation side pole 3 and the suction side pole 4). The second frame 7 is also divided into two equal parts.

  The first frame 6 includes the blower-side electrode 3 and has a hollow shape, that is, a hemispherical structure. The first frame 6 is provided with a circular opening 9 formed in a plane perpendicular to the central axis 2 in the vicinity of the blower side pole 3. Note that the term “neighborhood” as used herein is an expression based on the fact that the blower side pole 3 is on the circumference of the sphere and therefore does not coincide with the plane to which the opening 9 belongs. Therefore, the expression that the opening 9 includes the blower-side electrode 3 can be used. Furthermore, the first frame 6 has a plurality of induced air suction ports 8 (second embodiment) which are second air suction ports provided at equal intervals in the circumferential direction of the central axis 2 with the air blowing side electrode 3 as the center (this embodiment 1). 6).

  The attraction air suction port 8 has a circular shape with the same diameter, and the center of each circle is located on the same circumference around the central axis 2 (on the same cross section perpendicular to the central axis 2). However, it is not in contact with the adjacent attraction air inlet 8, that is, independent of each other, thereby securing a plurality of air passages to be described later in the internal space.

  The opening 9 is provided with an induced air outlet 10 that is a second air outlet that communicates with the induced air inlet 8 in the interior thereof, which will be described in detail later.

  The second frame 7 includes the suction side pole 4 and has a hollow shape, that is, a hemispherical structure. The second frame 7 includes an air suction port described later around the suction side electrode 4.

  FIG. 2 is an exploded side view of the air blower according to Embodiment 1 of the present invention.

  As shown in FIG. 2, the air blower includes a first air passage member 204 and an arrangement space 216 in the hollow space (inside) of the substantially spherical body constituted by the first frame 6 and the second frame 7 described above. The second air passage member 212 is arranged in this order from the first frame 6, and this configuration constitutes the blower casing. Further, by providing the high-pressure air generator 211 in the arrangement space 216, it functions as a blower.

  The first air passage member 204 is a lower portion that forms a hollow internal space between the upper member 202 having the induced air outlet 10 having a circular cross section perpendicular to the central axis 2 and the upper member 202. It is formed with the member 203. In addition, a plurality of support portions 213 (six in the first embodiment) project from the outer wall surface of the lower member 203 in parallel with the central axis 2 toward the suction side pole 4. Here, the term “projection” means that the projection is provided in a protruding state.

  The second air passage member 212 is provided with a plurality of contact portions 214 (the same number as the support portions, six in the present embodiment) corresponding to the plurality of support portions 213. Further, the abutting portion 214 is provided so as to protrude in parallel with the central axis 2 toward the air blowing side pole 3 of the second air passage member 212. An arrangement space 216 is formed between the first air passage member 204 and the second air passage member 212 by the front end portion of the support portion 213 and the front end portion of the contact portion 214 coming into contact with each other. The term “contact” as used herein refers to contact in a contact state. Further, the second air passage member 212 is provided with a cylindrical engaging portion 215 projecting from the central axis 2 in parallel with the central axis 2 toward the suction side pole 4.

  In the second frame 7, an air suction port 201 that is a first air suction port is provided as a number of punching holes in the vicinity of the suction side electrode 4. External air is sucked into the substantially spherical main body through the air suction port 201, and details of the mechanism will be described later.

  The high-pressure air generator 211 includes a motor 206, a base cover 207, a base 208 as control means, a motor cover 209, and blades 210. The high-pressure air generator 211 is fixed to the first air passage member 204 and fixed to the fixing portion 205 made of an elastic body made of rubber. The air channel member 204 is fixed to the outer wall side.

  Then, the flow of the air in a ventilation apparatus is demonstrated using FIG.3 and FIG.4. 3 is configured by arranging the first frame 6, the first air passage member 204, the high-pressure air generator 211, the second air passage member 212, and the second frame 7 shown in FIG. 2 in this order. It is sectional drawing at the time of cut | disconnecting an air blower in the plane containing the center axis | shaft 2. FIG. FIG. 4 is a top view of the first frame 6 and the first air path member 204 as viewed from the air blowing side pole 3 side.

  In FIG. 3, a motor 206 is disposed in the vicinity of the center 301 of a sphere that is equidistant from the blower side pole 3 and the suction side pole 4, and the rotation of the motor 206 is rotated by rotating the rotation axis of the motor 206. A blade 210 connected to the shaft rotates about the central shaft 2. The power source of the motor 206 corresponds to electricity supplied from a power line (described later) drawn from outside the main body, electricity obtained from a built-in battery, or the like.

  When the blades 210 rotate, air from the outside of the main body is sucked from the air suction port 201 (see the air blowing path 303). The sucked air passes through the opening on the air suction port 201 side (the air suction port side opening 302) of the second air passage member 212 having a function as an orifice, and the inside of the blade 210 in the arrangement space 216 It flows into (central part). The air that has flowed in is discharged from the central axis 2 in the direction of the outer periphery based on the air blowing structure of the blades 210, that is, pushed out in the outer circumferential direction of the arrangement space 216 that also functions as the air blowing path.

  The pushed-out air is guided to the opening 9 through the air passage 304 formed by the outer wall (outside the wall surface) of the first air passage member 204 and the inner wall of the first frame 6 by the pressing. Here, as shown in FIG. 4, the opening 9 has a circular shape centered on the air blowing side pole 3, and the induced air outlet 10 provided in the first air passage member 204 and the center thereof. It is configured identically.

  The diameter of the opening 9 is designed to be larger than the diameter of the induced air outlet 10, and the space between the opening 9 and the outer wall of the induced air outlet 10 is an annular shape communicating with the air passage 304. The air blower outlet 307 which is a 1st air blower outlet is comprised. As a result, the air sucked from the air suction port 201 is blown out as an annular air flow from the air outlet 307 in a direction parallel to the central axis 2 and away from the center 301 by the action of the blades 210. That is, the main body case 1 includes an air inlet 201 and an air outlet 307, and a high-pressure air generator 211 is provided in an air passage that connects the air inlet 201 and the air outlet 307.

  The annular air flow blown out from the air outlet 307 attracts the air inside the annular, that is, the air in the vicinity of the attractive air outlet 10 in the same direction due to the attraction effect. At this time, air is attracted from a plurality of attraction air inlets 8 communicating with the attraction air outlet 10 (see the air blowing path 306), mixed in the attraction air mixing unit 305, and sequentially sent to the attraction air outlet 10. .

  The annular airflow and the induced air described above are combined in the vicinity of the opening 9 and are discharged from the direction of the central axis 2 as a spot wind with little divergence.

  FIG. 5 is a conceptual diagram showing a blowing pattern of the blowing device. FIG. 5 shows the number of revolutions that changes in a time series of a large air volume notch and a small air volume notch in the variable air flow mode. As shown in FIGS. 1, 3, and 5, a power on / off switch 11, an air volume setting switch 12, and a variable air on / off switch 13 are provided at the bottom of the main body case 1. The power supply on / off switch 11 can be used to turn on and off the air blower. The air volume setting switch 12 has a large air volume notch and a small air volume notch, and the air volume setting switch 12 can select a large air volume notch and a small air volume notch. By using the variable air on / off switch 13, it is possible to select on / off of the variable air mode in which the amount of air blown from the blades from the base 208 serving as the control means is changed in time series. The base 208 controls the number of revolutions of the motor 206 according to the air volume setting switch 12 and the variable air on / off switch 13.

  For example, if energization of the blower is turned on by the power on / off switch 11 and a large air volume notch is selected by the air volume setting switch 12, the air is blown at the rotation speed of the large air volume notch. Here, if the fluctuating air mode is turned on by the fluctuating air on / off switch 13, fluctuating air is generated by a plurality of rotation speeds of the large air volume notch. The rotation speeds of these large air volume notches are calculated from the first large air volume notch rotation speed, the second large air volume notch rotation speed, the third large air volume notch rotation speed, and the fourth large air volume notch rotation speed. Become. Similarly, in the case of a small air volume notch, fluctuating air is blown by a plurality of rotation speeds of the small air volume notch. The rotation speeds of these small air volume notches include a first small air volume notch rotation speed, a second small air volume notch rotation speed, and a third small air volume notch rotation speed.

  In the case of the large air volume notch, the base 208 has a first large air volume notch rotation speed, a second large air volume notch rotation speed, a third large air volume notch rotation speed, and a fourth large air volume notch rotation speed. Are switched over time in a predetermined time. Similarly, in the case of the small air volume notch, the first small air volume notch rotation speed, the second small air volume notch rotation speed, and the third small air volume notch rotation speed are switched in time series within a predetermined time. . Thus, the board | substrate 208 controls the rotation speed of the motor 206, and blows a fluctuation | variation wind. The above is the outline of the configuration and operation of the blower according to the first embodiment.

  FIG. 6 is a cross-sectional view of the blower. FIG. 4 is a vertical sectional view passing through the center of the attraction air suction port 8 FIG. 7 is a cross-sectional view of the blower. FIG. 5 is a vertical sectional view passing between adjacent attracting air suction ports 8.

  As shown in FIG. 6 and FIG. 7, the air path that communicates the air inlet 201 that is the first air inlet and the air outlet 307 that is the first air outlet is the first air path 400. is there. The first air passage 400 includes a high-pressure air generator 211. A first downstream air passage 401 that communicates the high-pressure air generator 211 and the air outlet 307 is provided in the first frame 6 that is the upper part in the main body case 1. The first downstream air passage 401 is a part of the first air passage 400 and has a cylindrical shape along the inner surface of the substantially spherical main body case 1. Air sucked from the lower part of the main body case 1 by the high-pressure air generator 211 is blown obliquely upward toward the circumferential surface of the central part in the vertical direction of the main body case 1. This blown air flows from the bottom to the top along the first frame 6 inner surface along the first downstream air passage 401.

  A second air passage 402 is an air passage that communicates with the attraction air inlet 8 that is the second air inlet and the attraction air outlet 10 that is the second air outlet. The first frame 6, which is the upper part of the main body case 1, includes an attraction air suction port 8, and the attraction air suction port 8 is a plurality of circular holes 403. The plurality of holes 403 are provided radially with respect to the central axis 2 when the main body case 1 is viewed from above. The second air passage 402 passes through the cylindrical first downstream air passage 401 in the horizontal direction.

  The feature in this embodiment is that the second air passage 402 penetrates the first downstream air passage 401. Air blown from the blades 210 of the high-pressure air generator 211 is blown obliquely upward toward the circumferential surface of the central portion in the vertical direction of the main body case 1. The blown air flows in the first downstream air passage 401 from the bottom to the top while turning around the center axis 2 of the main body case 1 as the turning center. Here, since the plurality of second air passages 402 penetrate the first downstream air passage 401, the swirling air rises between the adjacent second air passages 402, It hits the outer surface of the plurality of second air passages 402 penetrating the one downstream air passage 401, and the turning is suppressed.

  Thus, since the turning is suppressed in the first downstream side air passage 401, the turning of the air blown out from the air outlet 307 which is the first air outlet is also suppressed. As a result, the turning speed is reduced near the blower, and the turbulence is reduced. This makes it easier to feel fluctuations in fluctuating winds and improve comfort when the blower is used in a fluctuating wind mode that changes the air volume in time series with a fluctuating wind on / off switch nearby. Can be obtained.

  FIG. 8 is a cross-sectional view of the air outlet of the blower. FIG. 9 is an enlarged cross-sectional view of the air outlet of the blower. FIG. 10 is a diagram illustrating an air outlet of the blower. FIG. 10 is a diagram showing the first air passage member 204 with a part of the first frame 6 removed. FIG. 11 is a view as seen from above the main body case 1.

  As shown in FIGS. 8, 9, 10, and 11, the cross-sectional area of the first downstream air passage 401 in the direction perpendicular to the air blowing direction is that of the air outlet 307 that is the first air outlet. A turning suppression means 404 is provided in the first downstream air passage 401, which is larger than the cross-sectional area in the direction perpendicular to the blowing direction.

  Specifically, the main body case 1 includes a circular opening portion 9 and is provided with a cylindrical portion 405 having a cylindrical shape extending from the inside of the opening portion 9 toward the center axis in the opening portion 9. A gap between the end 406 of the opening 9 and the cylindrical portion 405 becomes an air outlet 307.

  This point will be described in detail. The main body case 1 includes a circular opening 9 in the upper part of the first frame 6 that is the upper half of the main body case 1 having a substantially spherical shape. In the opening 9, a cylindrical cylindrical portion 405 having a central axis extending from the inside of the opening 9 in the direction of the center axis of the opening 9, that is, in the downward direction, is provided. The cylindrical portion 405 is an upper portion of the upper member 202 and has a shape that gradually spreads outward as it extends downward from the upper end. When the gap between the end 406 of the opening 9 and the cylindrical portion 405 is viewed from above the main body case 1, an air outlet 307 having an annular slit shape is formed.

  A first downstream air passage 401 that is continuous with the air outlet 307 is provided on the leeward side of the air outlet 307, that is, below the air outlet 307. The first downstream air passage 401 is a space surrounded by the inner surface of the first frame 6 that is a substantially spherical body that is the main body case 1 and the outer peripheral surface of the cylindrical cylindrical portion 405. The first downstream air passage 401 extends downward from the outer edge of the air outlet 307 and extends downward from the inner edge of the air outlet 307 and the first frame 6 which is a curved surface convex outward. It is a space surrounded by a cylindrical portion 405 that is a convex curved surface.

  That is, the cross-sectional area perpendicular to the air blowing direction of the air outlet 307 is smaller than the cross-sectional area perpendicular to the air blowing direction of the first downstream air passage 401. Thereby, the air blown out from the blades 210 temporarily accumulates in the first downstream air passage 401 and is blown from the air outlet 307. Since the first downstream air passage 401 is a high-pressure space, it is considered that it is difficult to turn in the first downstream air passage 401.

  Furthermore, a turning suppression means 404 is provided in the first downstream air passage 401 serving as a high-pressure space. The turning restraining means 404 is a large number of rib portions 407 protruding outward from the outer surface of the cylindrical portion 405. The rib portion 407 is disposed above the second air passage 402 that penetrates the first downstream air passage 401. Thereby, the swirling air hits the rib portion 407 and the swirling is suppressed. Therefore, the swirling of the air blown out from the air blowing outlet 307 which is the first air blowing outlet is also suppressed.

  The upper end 408 of the opening 9 protrudes outward from the upper end 409 of the cylindrical portion 405. The upper end portion 408 of the opening 9 and the upper end portion 409 of the cylindrical portion 405 are arranged on different horizontal planes. The upper end portion 408 of the opening 9 is located above the upper end portion 409 of the cylindrical portion 405.

  Thereby, the air which flows along the inner surface of the 1st flame | frame 6 in the 1st downstream air path 401 blows out inward from the air blower outlet 307. FIG. Here, since the upper end portion 408 of the opening 9 is located above the upper end portion 409 of the cylindrical portion 405, a part of the air blown slightly inward from the air outlet 307 is part of the upper end portion of the cylindrical portion 405. Since it blows out without hitting 409, the air which blows off from the air blower outlet 307 becomes easy to blow out toward inward. As a result, the annular airflow blown out from the air outlet 307 and the induced air attracted by the annular airflow are suppressed from being blown while spreading. As a result, it becomes difficult to diffuse to a position farther away from the blower, and it becomes a spot wind with less divergence. Can be obtained.

  It is useful as a blower that gives a refreshing feeling by blowing air or promotes air circulation in the space.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Center axis | shaft 3 Fan side pole 4 Suction side pole 5 Cut surface 6 1st frame 7 2nd frame 8 Attraction air inlet (2nd air inlet)
9 Opening 10 Attracting air outlet (second air outlet)
11 Power On / Off Switch 12 Air Volume Setting Switch 13 Fluctuating Air On / Off Switch 201 Air Suction Port (First Air Suction Port)
204 First air passage member 211 High-pressure air generator 212 Second air passage member 213 Support portion 214 Contact portion 215 Engagement portion 216 Space for arrangement 305 Induced air mixing portion 307 Air outlet (first air outlet)
400 First air passage 401 First downstream air passage 402 Second air passage 403 Hole portion 404 Rotation suppression means 405 Cylindrical portion 406 End portion 407 Rib portion 408 Upper end portion 409 Upper end portion

Claims (4)

A substantially spherical main body case having first and second air outlets and first and second air inlets, and a first body that communicates the first air inlet and the first air outlet. Blades provided in one air passage, a motor for rotating the blades, control means for controlling the rotational speed of the motor, and the amount of air blown from the blades by the control means is changed in time series. A fluctuating wind setting switch that sets a fluctuating wind mode to be provided, and includes a second air passage that communicates with the second air inlet and the second air outlet, A first downstream air passage that is a part of the first air passage communicating the blade and the first air outlet along the inner surface of the main body case, and the first downstream side The air blower characterized in that the second air passage passes through the air passage. A cross-sectional area perpendicular to the air blowing direction of the first air outlet is smaller than a cross-sectional area perpendicular to the air blowing direction of the first downstream air passage, and the first downstream air passage is The air blower according to claim 1, further comprising a turning suppression unit. The main body case includes a circular circular opening, and includes a cylindrical cylindrical portion extending from the inside of the circular opening to a center axis in the circular opening, and an end of the circular opening, the cylindrical portion, The air blower according to claim 2, wherein the gap is an air outlet, and the turning suppression means is a large number of rib portions protruding outward from the outer surface of the cylindrical portion. The blower according to any one of claims 1 to 3, wherein an upper end portion of the circular opening protrudes outward from an upper end portion of the cylindrical portion.

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