Blower

Abstract

To provide a bower capable of automatically varying wind directions even without an oscillating action.SOLUTION: A blower 100 includes: a body part 120 having a curve surface 125 bulging toward the front of the blower; first, second blowout ports 123, 124 provided on an outer peripheral surface of the body part 120; a wind blowing source 130; a first front wall 221, a first rear wall 211 in the blower; a first branch flow passage 153 between these two walls; a second front wall 222, a second rear wall 212 in the blower; a second branch flow passage 154 between these two walls; an air volume adjustment part provided in the body part 120, and capable of adjusting an airflow; and a control part for controlling the air volume adjustment part. The first blowout port 123 is provided at one end of the first branch flow passage 153, and opens toward the front of the blower, and the second blowout port 124 is provided at one end of the second branch flow passage 154, and opens toward the front of the blower.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a blower. [Background technology]

[0002] For example, Patent Document 1 discloses a fan (blower) in which the airflow direction changes automatically by a swing mechanism that swings the air blower blades and the electric motor that rotates the air blower blades left and right. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 01-224597 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the swinging motion of the fan blades and the motor can be perceived as an eyesore by some people, and the operating noise of the swinging motion can be unpleasant to some people.

[0005] In view of the above, an object of the present invention is to provide a blower that can automatically change the direction of airflow without performing a swinging operation. [Means for solving the problem]

[0006] A blower according to one aspect of the present invention comprises: a main body portion having a curved surface that bulges forward of the blower; a first air outlet provided on the outer peripheral surface of the main body; a second air outlet provided on the outer peripheral surface of the main body; air source, a first front wall provided inside the blower; a first rear wall provided inside the blower; a first tributary channel formed between the first front wall and the first rear wall; a second front wall provided inside the blower; a second rear wall provided inside the blower; a second tributary channel formed between the second front wall and the second rear wall; an airflow adjusting unit provided inside the main body and capable of adjusting the airflow guided from the air blowing source to the first branch flow path and the second branch flow path; A control unit that controls the air volume adjustment unit wherein: the first air outlet is provided at one end of the first branch flow path and opens toward the front of the blower; The second air outlet is provided at one end of the second branch flow path and opens toward the front of the blower. are. [Effects of the Invention]

[0007] According to the blower according to one aspect of the present invention, the airflow direction can be automatically changed without swinging. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing the appearance of a blower according to an embodiment; [Figure 2] FIG. 2 is a cross-sectional view showing the internal configuration of the blower according to the embodiment. [Figure 3] FIG. 2 is a cross-sectional view showing the internal configuration of the blower according to the embodiment. [Figure 4] FIG. 2 is a cross-sectional view showing the internal configuration of the blower according to the embodiment. [Figure 5] FIG. 3 is a cross-sectional view showing a specific structure of a first air outlet and its surroundings according to the embodiment. [Figure 6] FIG. 2 is a block diagram showing a control configuration of the blower according to the embodiment. [Figure 7] 10 is an explanatory diagram showing the state inside the main body when wind direction is changed in the embodiment. FIG. [Figure 8] FIG. 10 is a schematic diagram showing a rocking plate according to a first modified example. [Figure 9] FIG. 10 is a schematic diagram showing a main body according to a second modification. [Figure 10] FIG. 10 is a schematic view showing a first air outlet according to Modification 3. [Figure 11] 10 is a schematic view showing a first air outlet according to Modification 4. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of a blower according to the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below represents a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, arrangement and connection of the components, steps, order of steps, etc. shown in the following embodiments are merely examples and are not intended to limit the present invention.

[0010] The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims.

[0011] Furthermore, each drawing is a schematic diagram and is not necessarily an exact illustration. In each drawing, substantially the same components are denoted by the same reference numerals, and duplicated explanations may be omitted or simplified.

[0012] In the following description and drawings, the left-right direction of the blower is defined as the X-axis direction, the front-rear direction is defined as the Y-axis direction, and the height direction is defined as the Z-axis direction. These X-axis, Y-axis, and Z-axis directions intersect each other (orthogonal in the following embodiments). In this embodiment, the X-axis and Y-axis directions are directed along a horizontal plane, and the Z-axis direction is directed along the vertical direction, which is the direction of gravity. However, depending on the installation posture of the blower, the X-axis, Y-axis, and Z-axis directions may differ from the above. In the following description, for example, the positive X-axis direction indicates the direction of the X-axis arrow, and the negative X-axis direction indicates the opposite side from the positive X-axis direction. The same applies to the Y-axis and Z-axis directions. The positive Y-axis direction indicates the rear of the blower body, and the negative Y-axis direction indicates the front of the blower body. The positive X-axis direction indicates the right when facing the blower body, i.e., when facing rearward, and the negative X-axis direction indicates the left when facing the blower body. The positive direction of the Z axis indicates the upper side of the main body of the blower, and the negative direction of the Z axis indicates the lower side of the main body of the blower.

[0013] Furthermore, expressions indicating relative directions or attitudes, such as "parallel" and "orthogonal," also include cases where the directions or attitudes are not strictly those. For example, "two directions are parallel" does not only mean that the two directions are completely parallel, but also means that the two directions are substantially parallel, i.e., that there is a difference of, for example, a few percent.

[0014] Furthermore, in the following embodiments, expressions using the word "approximately" such as "approximately cylindrical" are used. For example, "approximately cylindrical" does not only mean a completely cylindrical shape, but also means a substantially cylindrical shape. In other words, it also means a cylinder that includes some irregularities on the surface, for example. The same applies to other expressions using "approximately".

[0015] (Embodiment) [composition] First, the configuration of blower 100 according to the embodiment will be described. Blower 100 is a device capable of blowing cool air and warm air to the surroundings. Fig. 1 is a perspective view showing the appearance of blower 100 according to the embodiment. Figs. 2 to 4 are cross-sectional views showing the internal configuration of blower 100 according to the embodiment. Specifically, Fig. 2 is a cross-sectional view taken along an XZ cross section including line II-II in Fig. 1. Fig. 3 is a cross-sectional view taken along a YZ cross section including line III-III in Fig. 1. Fig. 4 is a cross-sectional view taken along an XY cross section including line IV-IV in Fig. 1.

[0016] As shown in FIGS. 1 to 4, blower 100 includes a disk-shaped base 110 that is placed on the floor, and a substantially cylindrical main body 120 that is provided on base 110 and extends along the Z-axis direction. Main body 120 is fixed on base 110 so as not to rotate about the Z-axis. An operation unit 121 that receives various instructions from the user is provided on the top surface of main body 120. Operation unit 121 has a plurality of buttons 122 that are operated to turn the power on / off, adjust the air volume, turn the timer on / off, adjust the timer time, switch between hot air and cool air, change the air direction, and the like.

[0017] An outer peripheral surface 129 of the main body 120 has a first curved surface 125 disposed in front of the main body 120 and a second curved surface 126 disposed behind the first curved surface 125. A pair of air outlets 123, 124 from which air blows out are formed at both ends of the first curved surface 125 in a front view, at the end facing the positive direction of the X-axis and the end facing the negative direction of the X-axis. Each of the pair of air outlets 123, 124 extends along the axial direction (Z-axis direction) of the main body 120 from the top to below the center. To distinguish the air outlets 123, 124 from each other, the air outlets 123 and 124 may be referred to as the first air outlet 123 and the second air outlet 124, respectively.

[0018] As shown in FIGS. 2 to 4, the main body 120 accommodates an air source 130, a heat source 140, a flow path 150, and an air volume adjuster 160 therein.

[0019] Air blower 130 is a fan whose rotation axis is in the Z-axis direction, and is installed below main body 120. Communication ports (not shown) that connect the outside and inside of blower 100 are formed in the lower end surfaces of main body 120 and base 110, and when air blower 130 is driven, air is taken into main body 120 through the communication ports. In other words, when air blower 130 is driven, an ascending air current is generated within main body 120.

[0020] Heat source 140 is a heater that heats the airflow passing through main body 120, and is disposed in the upper part of main body 120, approximately in the center when viewed from above. Heat source 140 is a heater having a heating element that generates heat when a voltage is applied, such as a ceramic heater. Heat source 140 is configured so that the airflow passes from the front (the end in the negative Y-axis direction) to the rear (the end in the positive Y-axis direction). When heat source 140 is not driven, the airflow passes through heat source 140 without being heated, and when heat source 140 is driven, the airflow passes through heat source 140 in a heated state.

[0021] Flow path 150 is a portion that guides the airflow from blower source 130 to first outlet 123 and second outlet 124. Specifically, flow path 150 has a main flow path 151 that takes in the airflow from blower source 130 (i.e., the above-mentioned ascending air current), and a pair of branch flow paths 153 and 154 that split the airflow flowing through main flow path 151 and guide it to first outlet 123 and second outlet 124. To distinguish branch flow path 153 and branch flow path 154 from each other, branch flow path 153 and branch flow path 154 may be referred to as first branch flow path 153 and second branch flow path 154, respectively.

[0022] 3, main flow path 151 is a flow path that extends upward (in the positive direction of the Z axis) from the top of air source 130 to the front part (the end part in the negative direction of the Y axis) of heat source 140. The airflow guided by main flow path 151 enters heat source 140 from the front part of heat source 140.

[0023] More specifically, the airflow from blower source 130 is guided by wall panel 201 provided on the upper part of blower source 130, and flows as an ascending airflow through main flow path 151, as shown by arrow Y in Fig. 3, and reaches heat source 140. Wall panel 201 is provided inside main body 120 so as to extend from the outer wall portion forming second curved surface 126 in the negative Y-axis direction and the positive Z-axis direction, and connect to heat source 140. In this manner, main flow path 151 is formed by wall panel 201. Main flow path 151 is provided on the front side inside main body 120 (i.e., from the center of main body 120 in the negative Y-axis direction when viewed from above) and so as to extend in the vertical direction (i.e., parallel to the Z-axis direction).

[0024] 4, the first branch flow path 153 and the second branch flow path 154 are connected to the main flow path 151 via the heat source 140, and branch off immediately behind the rear portion of the heat source 140 (the end portion in the positive Y-axis direction). The first branch flow path 153 is curved toward the first air outlet 123 as viewed in the Z-axis direction, and has a shape that gradually narrows in width. Similarly, the second branch flow path 154 is curved toward the second air outlet 124 as viewed in the Z-axis direction, and has a shape that gradually narrows in width. This increases the wind pressure at the first air outlet 123 and the second air outlet 124.

[0025] More specifically, the first branch passage 153 is provided between the inner front curved wall 221 and the inner rear curved wall 211 provided inside the main body 120. The "inside" in the "inside front curved wall 221" and "inside rear curved wall 211" refers to the inside of the blower 100. "Front" refers to the negative direction of the Y axis. "Rear" refers to the positive direction of the Y axis. Both the "inside front curved wall 221" and the "inside rear curved wall 211" have curved surfaces.

[0026] In a cross-sectional view of blower 100 including the XY plane (i.e., FIG. 4), inner rear curved wall 211 has a curvature that gradually increases from the center of blower 100 toward first air outlet 123. In other words, in FIG. 4, the tangent direction of inner rear curved wall 211 near the center of blower 100 is approximately parallel to the +X axis, while the tangent direction of inner rear curved wall 211 near first air outlet 123 is approximately parallel to the -Y axis. Similarly, inner front curved wall 221 also has a curvature that gradually increases toward first air outlet 123. As shown in FIG. 5, which will be described in detail later, the curvature of inner rear curved wall 211 at first air outlet 123 is greater than the curvature of inner front curved wall 221 at first air outlet 123.

[0027] 4, second branch flow path 154 is provided between inner front curved wall 222 and inner rear curved wall 212 provided inside blower 100. Second branch flow path 154 is plane-symmetrical to first branch flow path 153, with the YZ plane including the center of blower 100 as the plane of symmetry.

[0028] To distinguish the inner front curved wall 221 and the inner front curved wall 222 from each other, the inner front curved wall 221 and the inner front curved wall 222 may be referred to as the first inner front curved wall 221 and the second inner front curved wall 222, respectively. To distinguish the inner rear curved wall 211 and the inner rear curved wall 212 from each other, the inner rear curved wall 211 and the inner rear curved wall 212 may be referred to as the first inner rear curved wall 211 and the second inner rear curved wall 212, respectively. The first inner front curved wall 221, the second inner front curved wall 222, the first inner rear curved wall 211, and the second inner rear curved wall 212 are examples of curved wall panels. A heat source 140 is provided between the first inner front curved wall 221 and the second inner front curved wall 222.

[0029] On the outer peripheral surface of main body 120, the area sandwiched between first air outlet 123 and second air outlet 124 forms first curved surface 125 that is convex outward. As described above, main body 120 is formed in a substantially cylindrical shape, and therefore first curved surface 125 is a curved surface based on a circular arc.

[0030] 2, inside each of first air outlet 123 and second air outlet 124, a plurality of rectifying plates 127 are arranged along the extension direction (Z-axis direction) of first air outlet 123 and second air outlet 124. Each rectifying plate 127 is a flat plate parallel to the XY plane and is arranged at equal intervals in the Z-axis direction. The airflows ejected from first air outlet 123 and second air outlet 124 are rectified by each rectifying plate 127, and are ejected to the outside as stable flows.

[0031] The specific structure of first air outlet 123 and its surroundings will be described. First air outlet 123 and second air outlet 124 are basically the same, so the specific structure of first air outlet 123 and its surroundings will be described here as an example, and a description of the specific structure of second air outlet 124 and its surroundings will be omitted.

[0032] Fig. 5 is a cross-sectional view showing a specific structure of first air outlet 123 and its surrounding area according to the embodiment. As shown in Fig. 5, first air outlet 123 is open so as to face the front of main body 120. First curved surface 125 of main body 120 is continuous with edge 1231 of first air outlet 123 in the negative Y-axis direction. Meanwhile, second curved surface 126 of main body 120 other than first curved surface 125 is continuous with edge 1232 of first air outlet 123 in the positive Y-axis direction.

[0033] Like the first curved surface 125, the second curved surface 126 is a curved surface based on an arc, but the second curved surface 126 is based on an arc with a larger radius of curvature than the first curved surface 125. The arc that serves as the reference for the first curved surface 125 and the arc that serves as the reference for the second curved surface 126 share the same center. In FIG. 5 , the imaginary arc that serves as the reference for the second curved surface 126 is illustrated by a two-dot chain line L2. That is, the edge 1232 of the first air outlet 123 protrudes outward from the edge 1231 of the first air outlet 123. Therefore, the edge 1232 guides the airflow ejected from the first air outlet 123 toward the first curved surface 125. As a result, a portion of the airflow flows forward (in the negative Y-axis direction) along the front-to-rear direction (the Y-axis direction). Here, if a curved wall is present near the airflow, a phenomenon known as the Coanda effect occurs, in which the airflow flows in a direction that follows the curve of the wall. In this embodiment, the Coanda effect is also exerted on the airflow ejected from first air outlet 123, and the airflow flows along first curved surface 125 (see arrow Y1). For this reason, first curved surface 125 can also be called a Coanda surface. In this way, first air outlet 123 opens toward the front of main body 120, and is formed in a shape that blows out an airflow that flows forward along the front-to-rear direction of main body 120. The same applies to second air outlet 124 and its surroundings.

[0034] Because first air outlet 123 and second air outlet 124 are arranged at positions on either side of first curved surface 125 in the circumferential direction, the airflows blown out from first air outlet 123 and second air outlet 124 flow along first curved surface 125 and join at a predetermined position on first curved surface 125. The airflows joined at this predetermined position are discharged outward from main body 120. As described above, the airflows at first air outlet 123 and second air outlet 124 are straightened by each straightening plate 127, so the airflows can be stably directed along first curved surface 125 over the entire length of first air outlet 123 and second air outlet 124 in the Z-axis direction.

[0035] As shown in FIGS. 3 and 4 , the airflow adjustment unit 160 is a component for adjusting the airflow rate for the first branch flow path 153 and the second branch flow path 154, and includes a swinging plate 161 and a drive source 162. The swinging plate 161 is a rectangular plate that is elongated in the Z-axis direction and is provided at a branch point P of the first branch flow path 153 and the second branch flow path 154. One end of the swinging plate 161 (the end in the positive direction of the Y-axis) is pivotally supported within the main body 120 so as to be swingable. The other end of the swinging plate 161 (the end in the negative direction of the Y-axis) is located in proximity to the rear of the heat source 140. When the swinging plate 161 rotates around the one end, the other end of the swinging plate 161 swings in the vicinity of the rear of the heat source 140. The airflow rate for the first air outlet 123 and the second air outlet 124 can be adjusted by changing the stopping position of the swinging plate 161.

[0036] One end of the rocking plate 161 (strictly speaking, one side of the rectangular rocking plate 161 parallel to the Z-axis direction (the rear end side of the rocking plate 161)) is provided at the joint between the first inner rear curved wall 211 and the second inner rear curved wall 212. On the other hand, the other end of the rocking plate 161 (strictly speaking, the other side of the rectangular rocking plate 161 parallel to the Z-axis direction (the front end side of the rocking plate 161)) is rocked by a driving source 162. As will be described in detail later, by driving the driving source 162, the other end of the rocking plate 161 rocks between a state in which it is located near one end of the first inner front curved wall 221 (see FIG. 7(a)) and a state in which it is located near one end of the second inner front curved wall 222 (see FIG. 7(c)).

[0037] The driving source 162 is a motor such as a stepping motor that applies a rotational force to the rocking plate 161. The driving source 162 is disposed above the rocking plate 161, and its rotation shaft is connected to the upper part of the rocking plate 161 so as to be able to freely apply a rotational force (see FIG. 3).

[0038] Fig. 6 is a block diagram showing the control configuration of blower 100 according to the embodiment. As shown in Fig. 6, blower 100 has control unit 170 electrically connected to operation unit 121, air source 130, heat source 140, and drive source 162. Control unit 170 is housed in main body 120. Control unit 170 includes, for example, a CPU, RAM, and ROM, and controls each unit by having the CPU load a program stored in the ROM into RAM and execute it. Specifically, control unit 170 controls air source 130, heat source 140, and drive source 162 based on various instructions received by operation unit 121.

[0039] [Wind direction fluctuation control] The following describes a control procedure when a wind direction change instruction is received by operation unit 121. Wind direction change refers to an operation in which the wind direction changes in the X-axis direction around main body unit 120.

[0040] Fig. 7 is an explanatory diagram showing the state inside the main body 120 when the wind direction is being changed according to the embodiment. Fig. 7(a) shows the state when the wind direction is biased in the negative direction of the X axis around the main body 120. Fig. 7(b) shows the state when the wind direction is not biased. Fig. 7(c) shows the state when the wind direction is biased in the positive direction of the X axis around the main body 120.

[0041] When there is no airflow direction change instruction, the control unit 170 controls the drive source 162 to stop the rocking plate 161 at a position parallel to the Y-axis direction, as shown in FIG. 7B, for example. At this time, the rocking plate 161 divides the airflow that has passed through the heat source 140 so as to provide equal air volumes, generating a first diverted flow Y10 and a second diverted flow Y20. The first diverted flow Y10 flows through the first branch flow path 153, is ejected from the first air outlet 123, and flows along the first curved surface 125 of the main body 120. On the other hand, the second diverted flow Y20 flows through the second branch flow path 154, is ejected from the second air outlet 124, and flows along the first curved surface 125 of the main body 120. Since the air volume of the first branch flow Y10 and the air volume of the second branch flow Y20 are equal, the first branch flow Y10 and the second branch flow Y20 merge at the midpoint of the first curved surface 125 and are released from the main body portion 120 in a flow along the Y-axis direction.

[0042] When an airflow direction change command is received, the control unit 170 controls the drive source 162 to rotate and swing the swing plate 161. For example, when the swing plate 161 rotates from the state shown in FIG. 7(b) and the other end of the swing plate 161 swings in the negative X-axis direction, the state shown in FIG. 7(a) is reached. At this time, the swing plate 161 largely opens the first branch channel 153 while almost completely closing the second branch channel 154. As a result, the first diverted flow Y10, at a flow rate greater than the second diverted flow Y20, flows through the first branch channel 153 and is ejected from the first outlet 123, and flows along the first curved surface 125 of the main body 120.

[0043] On the other hand, the second diverted flow Y20, at a flow rate smaller than that of the first diverted flow Y10, flows through the second branch channel 154 and is ejected from the second outlet 124, and flows along the first curved surface 125 of the main body 120. Because the flow rate of the first diverted flow Y10 is large, the first diverted flow Y10 and the second diverted flow Y20 merge at a position shifted in the negative X-axis direction from the midpoint of the first curved surface 125, and are emitted from the main body 120 as flows inclined with respect to the Y-axis. Specifically, after merging, the first diverted flow Y10 and the second diverted flow Y20 are emitted from the main body 120 as flows that incline toward the negative X-axis direction as they move in the negative Y-axis direction.

[0044] 7(b), the rocking plate 161 rotates, and the other end of the rocking plate 161 rocks in the positive direction of the X-axis, resulting in the state shown in FIG. 7(c). At this time, the rocking plate 161 largely opens the second branch channel 154, while almost completely closing the first branch channel 153. As a result, the first diverted flow Y10, at a flow rate smaller than that of the second diverted flow Y20, flows through the first branch channel 153 and is ejected from the first outlet 123, and flows along the first curved surface 125 of the main body 120. On the other hand, the second diverted flow Y20, at a flow rate larger than that of the first diverted flow Y10, flows through the second branch channel 154 and is ejected from the second outlet 124, and flows along the first curved surface 125 of the main body 120. Because the flow rate of the second diverted flow Y20 is large, the first diverted flow Y10 and the second diverted flow Y20 join at a position shifted in the positive X-axis direction from the midpoint of the first curved surface 125, and are discharged from the main body portion 120 as flows inclined with respect to the Y-axis direction. Specifically, after joining, the first diverted flow Y10 and the second diverted flow Y20 are discharged from the main body portion 120 as flows inclined to move in the positive X-axis direction as they move in the negative Y-axis direction.

[0045] When the wind direction changes, the other end of the oscillating plate 161 continuously oscillates, repeatedly moving from the negative X-axis direction to the positive X-axis direction and from the positive X-axis direction to the negative X-axis direction, and therefore the wind direction also oscillates continuously from side to side.

[0046] [Effects, etc.] As described above, blower 100 according to the embodiment includes main body 120 having first curved surface 125 that is convex outward and first air outlet 123 and second air outlet 124 arranged around first curved surface 125, air source 130 housed in main body 120, flow path 150 provided within main body 120 and guiding airflow from air source 130 to first air outlet 123 and second air outlet 124, air volume adjustment unit 160 for adjusting the air volume for first air outlet 123 and second air outlet 124 within flow path 150, and control unit 170 for controlling air source 130 and air volume adjustment unit 160. First air outlet 123 and second air outlet 124 are arranged at positions sandwiching first curved surface 125. Each of first air outlet 123 and second air outlet 124 opens toward the front of main body 120 and is formed in a shape that blows out an air current that flows forward along the front-rear direction of main body 120.

[0047] According to this configuration, each of the first air outlet 123 and the second air outlet 124 is formed with a shape that blows out an airflow forward along the front-to-rear direction of the main body 120. Therefore, the first diverted flow Y10 blown out from the first air outlet 123 and the second diverted flow Y20 blown out from the second air outlet 124 flow along the first curved surface 125 as a Coanda surface, merge on the first curved surface 125, and are then discharged outward. Here, the air volume adjustment unit 160 can change the point where the first diverted flow Y10 and the second diverted flow Y20 merge on the first curved surface 125 to adjust the flow rates of the first diverted flow Y10 and the second diverted flow Y20. Changing the merge point allows the direction of the airflow after merging to be changed. In this way, the airflow direction can be automatically changed without swinging.

[0048] The flow path 150 has a main flow path 151 that takes in airflow from the air blower source 130, and a first branch flow path 153 and a second branch flow path 154 that split the airflow flowing through the main flow path 151 and guide it to the first air outlet 123 and the second air outlet 124, respectively.The air volume adjustment unit 160 has a rocking plate 161 and a drive source 162 that rocks the rocking plate 161, and the rocking plate 161 is arranged at the split point P of the first branch flow path 153 and the second branch flow path 154.

[0049] According to this, by swinging the swing plate 161 arranged at the branch point P, it is possible to adjust the air volume for the first branch flow path 153 and the second branch flow path 154. This eliminates the need to arrange an air volume adjustment member in each of the first branch flow path 153 and the second branch flow path 154, and therefore it is possible to prevent the size of the blower 100 from increasing.

[0050] The blower 100 is disposed in the flow path 150 and has a heat source 140 disposed closer to the blower source 130 than the swing plate 161 .

[0051] According to this, since the heat source 140 is disposed closer to the air blower source 130 than the rocking plate 161, the airflow before being diverted can be heated by the heat source 140. In other words, the first diverted flow Y10 and the second diverted flow Y20 generated after the diverted flow are already heated, so efficient heating is possible with a small number of heat sources 140.

[0052] The main flow path 151 is formed from a wall panel 201 that connects the air supply source 130 to the heat source 140 within the main body 120, and each of the first branch flow path 153 and the second branch flow path 154 is formed from a pair of curved wall panels (a pair of a first inner front curved wall 221 and a first inner rear curved wall 211, and a pair of a second inner front curved wall 222 and a second inner rear curved wall 212) arranged within the main body 120.

[0053] According to this, the main flow path 151, the first branch flow path 153, and the second branch flow path 154 are formed by the wall plate 201, the first inner front curved wall 221, the first inner rear curved wall 211, the second inner front curved wall 222, and the second inner rear curved wall 212 provided within the main body portion 120. Therefore, the main flow path 151, the first branch flow path 153, and the second branch flow path 154 can be accommodated compactly within the main body portion 120.

[0054] The main body 120 is formed in a cylindrical shape, and the first air outlet 123 and the second air outlet 124 extend along the axial direction of the main body 120.

[0055] As a result, the first air outlet 123 and the second air outlet 124 extend along the axial direction of the cylindrical main body 120, making it possible to release the airflow extending along the axial direction of the main body 120 to the outside.

[0056] A plurality of rectifying plates 127 are arranged inside the first air outlet 123 and the second air outlet 124 along the direction in which the first air outlet 123 and the second air outlet 124 extend.

[0057] As a result, the airflow at the first air outlet 123 and the second air outlet 124 is straightened by each straightening plate 127, so that the airflow can be stably guided along the first curved surface 125 over the entire length of the first air outlet 123 and the second air outlet 124 in the extension direction.

[0058] (Other embodiments) Although the blower according to the present invention has been described above based on the above embodiment, the present invention is not limited to the above embodiment. In the following description, parts equivalent to those in the above embodiment will be assigned the same reference numerals, and their description may be omitted.

[0059] For example, in the above embodiment, the first curved surface 125 (Coanda surface) has a shape based on the outer peripheral surface of a cylinder. However, the curved surface may have any shape as long as it can exhibit the Coanda effect. For example, other curved surface shapes include a shape based on the outer peripheral surface of an elliptical cylinder, a shape based on the outer peripheral surface of an oblong cylinder, and a shape based on a spherical surface.

[0060] Furthermore, in the above embodiment, blower 100 has been exemplified in which first air outlet 123 and second air outlet 124 are arranged at positions on either side of first curved surface 125. However, the number and arrangement of the air outlets may be arbitrary as long as each of the multiple air outlets is arranged at a position where the airflow blown out from the air outlet flows along the curved surface and joins the airflow blown out from the other air outlets.

[0061] In the above embodiment, blower 100 is exemplified in which airflow generated by one air source 130 is split by flow path 150 and guided to first air outlet 123 and second air outlet 124. However, each air outlet may be provided with an independent flow path, and each flow path may be provided with an individual air source. In this case, the control unit may adjust the air volume of each air source. In other words, in this case, the control unit functions as an air volume adjustment unit.

[0062] Furthermore, in the above embodiment, the area of ​​outer peripheral surface 129 of main body 120 other than first curved surface 125 is second curved surface 126. However, the area other than first curved surface 125 may have any shape, and other shapes include, for example, a flat surface.

[0063] Furthermore, in the above embodiment, blower 100 having heat source 140 has been exemplified, but the blower does not have to have a heat source. In other words, the blower may be one that generates only cool air.

[0064] Fig. 8 is a schematic diagram showing a rocking plate 161a according to Modification 1. In the above embodiment, one end of the rocking plate 161 (the end in the positive Y-axis direction) is pivotally supported within the main body 120 so as to be able to rock freely. However, as shown in Fig. 8, the rocking center of the rocking plate 161a may be the center in the Y-axis direction. In this case, both ends of the rocking plate 161a in the Y-axis direction will rock.

[0065] 9 is a schematic diagram showing a main body portion 120b according to Modification 2. In the above embodiment, a case has been illustrated in which a first tributary channel 153 and a second tributary channel 154 are arranged in the main body portion 120 so as to surround a main channel 151. In this modification, a case will be described in which a first tributary channel 153b and a second tributary channel 154b are arranged at positions away from the main channel 151b.

[0066] As shown in FIG. 9, first and second branch channels 153b and 154b are disposed within main body 120b, away from main channel 151b. Specifically, first and second branch channels 153b and 154b are disposed in positions that are upside down from the first and second branch channels 153 and 154 of the above-described embodiment in FIG. 8. In this case, first outlet 123b is located at the most downstream position of first branch channel 153b, and second outlet 124b is located at the most downstream position of second branch channel 154b. In other words, the airflows blown out from first branch channel 153b and second outlet 124b flow in the positive Y-axis direction while oriented along the Y-axis, thereby flowing along second curved surface 126b as a Coanda surface. In other words, in this modification, the positive Y-axis direction is the front of main body 120b.

[0067] The shapes of first air outlet 123 and second air outlet 124 may be any as long as they generate an airflow that flows along the Coanda surface. To explain this using first air outlet 123 as an example, as described above, if the airflow blown out from first air outlet 123 becomes a flow that flows forward in the front-to-rear direction near first air outlet 123, then it will flow along first curved surface 125 as a Coanda surface.

[0068] 10 is a schematic diagram showing a first air outlet 123c according to Modification Example 3. This first air outlet 123c has an air outlet flow path 181c along the front-rear direction. The airflow (see arrow Y2) blown out through this air outlet flow path 181c flows forward along the front-rear direction, and then flows along the first curved surface 125c as a Coanda surface.

[0069] 11 is a schematic diagram showing a first air outlet 123d according to Modification 4. In Modification 4, a flat surface 182d is formed in the main body 120d along the front-rear direction between the first air outlet 123d and the first curved surface 125d. The inner wall surface 183d in the positive Y-axis direction of the first air outlet 123d is curved toward the flat surface 182d. Therefore, the airflow (see arrow Y3) blown out from the first air outlet 123d is directed toward the flat surface 182d by the inner wall surface 183d. The airflow flows forward along the front-rear direction on the flat surface 182d, and then flows along the first curved surface 125d as a Coanda surface.

[0070] In addition, the present invention also includes forms obtained by making various modifications to the embodiments and variations that a person skilled in the art would think of, and forms realized by arbitrarily combining the components and functions of the embodiments within the scope that does not deviate from the spirit of the present invention. [Industrial Applicability]

[0071] The present invention is widely applicable to blowers capable of controlling the direction of airflow. [Explanation of symbols]

[0086] 100 Blower 110 Base 120, 120b Main body 121 Operation section 122 buttons 123, 123b, 123c, 123d First outlet 124, 124b Second air outlet 125, 125d First curved surface (curved surface) 126, 126b Second curved surface 127 Rectifier plate 129 Outer surface 130 Air source 140 Heat source 150 flow channels 151, 151b Main flow path 153, 153b First tributary channel (tributary channel) 154, 154b Second tributary channel (tributary channel) 160 Air volume adjustment section 161, 161a swing plate 162 Power Source 170 Control Unit 181c Outlet flow path 182d flat part 183d Inner wall 211 First inner curved wall 212 Second internal curved wall 221 First inner front curved wall 222 Second inner front curved wall 1231, 1232 Edge P Diversion point Y10 First branch Y20 Second branch

Claims

1. A blower, a main body portion having a curved surface that bulges toward the front of the blower; A first air outlet provided on an outer circumferential surface of the main body; A second air outlet provided on an outer circumferential surface of the main body; air source, A first front wall provided inside the blower; A first rear wall provided inside the blower; a first tributary channel formed between the first front wall and the first rear wall; A second front wall provided inside the blower; A second rear wall provided inside the blower; a second tributary channel formed between the second front wall and the second rear wall; an airflow adjusting unit provided inside the main body and capable of adjusting the airflow guided from the air source to the first branch flow path and the second branch flow path, and a control unit for controlling the airflow adjusting unit wherein the first air outlet is provided at one end of the first branch flow passage and opens toward the front of the blower; the second air outlet is provided at one end of the second branch flow path and opens toward the front of the blower, The airflow adjustment unit includes a swing plate and a drive source for swinging the swing plate, The wobble plate is disposed so as to be sandwiched between the first branch flow path and the second branch flow path, The rocking plate is a plate body that is long in the height direction. Blower.

2. The blower of claim 1, The airflow is blown out from the first air outlet toward the front of the blower, and The airflow is blown out from the second air outlet toward the front of the blower. Blower.

3. The blower of claim 1 or 2, The first air outlet and the second air outlet are each provided to extend along the height direction, The rocking plate is disposed at a branch point of the first branch flow path and the second branch flow path, and is provided so as to be rockable about the height direction while being disposed at a position facing the first air outlet and the second air outlet. Blower.

4. The blower of claim 3, one end of the rocking plate on the upstream side of the air flow is pivotally supported as a rotation center such that the other end of the rocking plate on the downstream side of the air flow is pivotable; The other end is disposed upstream of the airflow from the branch point. Blower.

5. The blower of claim 1, Further comprising a heat source; The heat source is provided inside the main body. Blower.

6. The blower of claim 5, The airflow is guided from the air source through the heat source to the first branch flow path and the second branch flow path. Blower.

7. The blower of claim 2, The airflow blown out from the first air outlet flows along the curved surface due to the Coanda effect, The airflow blown out from the second air outlet flows along the curved surface due to the Coanda effect, and The airflows blown out from the first air outlet and the second air outlet and flowing along the curved surface due to the Coanda effect join together on the curved surface and flow in a direction away from the blower. Blower.

8. The blower of claim 7, The direction away from the blower is adjusted according to the position of a rocking plate that is rockably provided between the first branch flow path and the second branch flow path. Blower.

9. The blower of claim 1, The main body has a columnar shape, The first air outlet is provided at a first end of the curved surface; and The second air outlet is provided at a second end of the curved surface. Blower.

10. The blower of claim 1, The first air outlet comprises a first opening provided on an outer circumferential surface of the main body, and The second air outlet is a second opening provided on the outer circumferential surface of the main body. Blower.

11. The blower of claim 10, The main body has a columnar shape standing vertically, The first air outlet has a slit shape extending along the vertical direction, and The second air outlet has a slit shape extending along the vertical direction. Blower.

12. The blower of claim 1, the first front wall, the first rear wall, the second front wall, and the second rear wall all have an arc shape in a cross-sectional view; Blower.

13. The blower of claim 1, The air source is provided inside the main body. Blower.

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