Blower device, and clothing with a blower device

Abstract

The present invention provides a fan that can control the airflow direction so that the air blown out by the rotation of the wing circulates over a wider area on the leeward side of the wing, and a garment equipped with this fan that can improve comfort for the user. [Solution] The blower has a blade that blows air by rotation, and a guard that covers the blade on the leeward side where the air is blown and is formed to allow air to pass through along the circumferential direction around the rotation axis of the blade. The guard has one or more wind direction adjustment members, each consisting of a laminar flow introduction section including a first side surface parallel to the rotation axis of the blade, and a wind direction adjustment section including a second side surface that is bent radially outward around the rotation axis and connects to the first side surface. The wind direction adjustment member is positioned adjacent to a gap that forms the airflow path in the radial direction, with the first side surface and the second side surface in contact with the airflow path. The air is supplied through the guard.

Description

[Technical Field]

[0001] The present disclosure relates to a blower that blows air toward, for example, a human body by rotation of blades. The present disclosure also relates to clothing with a blower in which such a blower is attached to clothing fabric. [Background Art]

[0002] In recent years, there have been many extremely hot days uncomfortable for humans throughout the year. On extremely hot days, frequent hydration and appropriate use of air conditioners are encouraged as measures to prevent heat stroke.

[0003] However, for reasons such as the absence of air conditioning equipment or insufficient cooling effect, workers working outdoors under intense heat, workers working in a hot and humid indoor environment, and people enjoying recreation, sports, or watching sports under the scorching sun cannot cool down with air conditioning equipment.

[0004] Accordingly, in recent years, many types of clothing provided with an air conditioning function have been developed for people seeking to cool off. An air-conditioned clothing that is one example thereof is disclosed in Patent Document 1.

[0005] Patent Document 1 discloses air-conditioned clothing in which an air-conditioning blower unit is attached to the clothing fabric of the clothing. The air-conditioning blower unit includes a propeller that blows out air, and a casing that ventilably covers the periphery of the propeller, and the casing includes an inner case portion positioned on the leeward side of the propeller. The inner case portion serves as a guard in which gaps are intermittently provided at a plurality of locations. A side surface of the guard is formed along the rotation axis of the propeller.

[0006] In Patent Document 1, the casing of the main body is inserted through an opening in the fabric of the air-conditioned garment from the outside, and the flange of the main body is in contact with the outer edge of the opening in the fabric. With this state, the pressing member is attached from the inside of the fabric toward the casing of the main body. The air-conditioned garment's ventilation unit is installed by fixing the main body and the pressing member together, so that the fabric of the air-conditioned garment is sandwiched between the flange of the main body and the pressing member. As the propeller rotates, air is blown through the gaps between adjacent guards toward the body inside the garment. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Utility Model Registration No. 3213564 Gazette [Overview of the project] [Problems that the invention aims to solve]

[0008] However, when the air-conditioning garment ventilation unit described in Patent Document 1 is attached to the garment to blow air onto the body, the distance from the fabric of the garment to which the ventilation device is attached to the body behind it is only a few centimeters, and the tip of the inner case part is in contact with or close to the body. On the other hand, in ventilation devices that blow air by rotating a propeller, as in Patent Document 1, the air is generally blown linearly along the axis of the propeller, and is generally a laminar flow from the propeller.

[0009] Therefore, most of the air blown from the propeller passes between the guards of the inner case and then hits only the area of ​​the body that is in contact with the propeller, primarily the side of the body facing the propeller. Moreover, the air that drifts in the internal space between the garment and the body, especially near the tip of the inner case, is negatively affected by the generation of vortices due to the airflow from the propeller and the airflow that changes direction as it hits the body-side contact area, resulting in turbulence. Consequently, the air blown from the propeller remains stagnant around the inner case and does not reach a wider area within the space between the garment and the body.

[0010] Therefore, in a fan that uses the rotation of a wing to generate airflow, as described in Patent Document 1, the user has the problem that they cannot receive the airflow from the wing over a wider area of ​​their body through the gaps between the guards on the leeward side of the wing.

[0011] This disclosure is made to solve the above-mentioned problems and aims to provide a blower that can control the direction of the airflow so that the air blown out by the rotation of the wing circulates over a wider area on the leeward side of the wing, and a garment with a blower that can improve comfort for the user when this blower is attached. [Means for solving the problem]

[0012] (1) A blower according to one aspect of the present disclosure, made to solve the above problems, has a blade that blows air by rotation and a guard that covers the area around the blade on the leeward side of the blown air and is formed to allow air to pass through, wherein the air is supplied by passing through the guard, the guard has one or more wind direction adjusting members, the wind direction adjusting member is connected to a laminar flow introduction portion that includes a first side surface parallel to the rotation axis of the blade and a wind direction variable portion that includes a second side surface that is bent radially outward about the rotation axis and connected to the first side surface, and the wind direction adjusting member is positioned adjacent to a gap that forms a wind flow path with respect to the radial direction, and the first side surface and the second side surface are in contact with the wind flow path.

[0013] According to this embodiment, the directivity of the air blown out from the guard is expanded compared to conventional blowers described in Patent Document 1, etc., and the air blown out from the guard over a wider area, not only in the downwind direction along the direction of the rotation axis.

[0014] Moreover, the air blown out from the wings does not stagnate around the guard, but flows through the gaps in the guard, creating a widely diffused airflow area around the axis of rotation, surrounding the blower of this disclosure. In addition, because the air blown out from the wings reaches a wide area around the blower of this disclosure, the user can receive air supplied from the blower not only in the central area of ​​their body facing the wings, but also in the surrounding areas away from that central area.

[0015] (2) In the embodiment described in (1) above, it is preferable that the plurality of wind direction adjusting members are arranged to overlap intermittently with respect to the radial direction, with the gap in between, with the center of the rotation axis being concentric.

[0016] In this embodiment, the air blown out by the rotation of the blade is directed by the wind direction adjustment member to include a flow along the direction of the rotation axis, as well as a flow that spreads sufficiently in the radial direction perpendicular to the rotation axis, and diffuses through the gaps in the guard to a wide airflow area.

[0017] (3) In the embodiment described in (2) above, it is preferable that, for each of the multiple wind direction adjusting members, the angle of the second side surface relative to the first side surface increases from the radially inward to the radially outward direction for each wind direction adjusting member.

[0018] In this embodiment, the air blown out by the rotation of the blade is directed by the wind direction adjustment member to include a flow along the direction of the rotation axis, as well as a flow that spreads sufficiently in the radial direction perpendicular to the rotation axis, and diffuses through the gaps in the guard to a wider airflow area.

[0019] (4) In any one of the embodiments described in (1) to (3) above, it is preferable that the distance between the leeward portion of the wing, which is located on the leeward side, and the wind inlet end face, which is located on the windward side, of the laminar flow introduction portion of the wind direction adjustment member, is at most 10 mm or less.

[0020] According to this aspect, the air sent to the leeward side by the rotation of the blades is adjusted by the wind direction adjusting member to include a flow along the direction of the rotating shaft, and is directed in the radial direction orthogonal to the rotating shaft. For example, as an example of the angle formed by the air blowing region STw shown in FIG. 13, the flow is sufficiently spread such as 100 to 160 (deg), and can be blown out in a state of being diffused from the guard to a wide air blowing region.

[0021] (5) In the aspect described in any one of (1) to (4) above, it is preferable that, in the wind direction adjusting member, the wind inflow side end surface located on the most windward side of the laminar flow introduction portion and the first side surface are connected via an R-shaped curved surface.

[0022] According to this aspect, when the air that is about to flow into the gap reaches the first side surface, the pressure loss of the airflow is reduced, the generation of vortices on the curved surface is suppressed, and the air flows toward the second side surface.

[0023] (6) In the aspect described in any one of (1) to (5) above, it is preferable that, in the wind direction adjusting member, the first side surface and the second side surface are connected via an R-shaped curved surface.

[0024] According to this aspect, when the air flowing into the gap flows from the first side surface toward the second side surface, when the air reaches the second side surface and passes through the gap, the pressure loss of the airflow is reduced, the generation of vortices on the curved surface is suppressed, and the air can be supplied to the outside.

[0025] (7) In the aspect described in any one of (1) to (6) above, it is preferable that a drive unit for rotating the blades is provided, and the guard is formed on an outer circumference of the drive unit disposed at the center in the radial direction.

[0026] According to this aspect, the drive unit is located in a portion of the blower device that does not send out air from the blades, so the entire blower device can be made compact.

[0027] (8) Further, in order to solve the above problem, in another aspect of the present disclosure, there is provided a garment with a blower, wherein a fan unit for blowing air is mounted on a fabric, and the fan unit is capable of blowing air toward a wearer's body, characterized in that the fan unit is the blower according to any one of (1) to (5) above.

[0028] According to this aspect, the garment with a blower can be used by people who particularly need cool air, for example, workers working outdoors under intense heat, workers working wearing work clothes in a hot and humid indoor environment, people engaging in recreation, sports, watching sports and other activities under the scorching sun, and the like. In the garment with a blower, comfort for a user wearing the garment is improved compared to a garment with a blower equipped with a blower according to the related art.

Effects of the Invention

[0029] Therefore, according to the blower of the present disclosure, an excellent effect is obtained in that the rotation of the blades can control the wind direction such that the blown air flows over a wider area on the leeward side of the blades. Further, according to the garment with a blower of the present disclosure, an excellent effect is obtained in that comfort can be improved for a user.

Brief Description of Drawings

[0030] [Figure 1] It is a side view showing the blower according to an embodiment. [Figure 2] It is a plan view of the blower shown in FIG. 1 as viewed from the intake side. [Figure 3] It is a plan view of the blower shown in FIG. 1 as viewed from the blowing side. [Figure 4] It is a perspective view of the blower shown in FIG. 1 as viewed from the blowing side. [Figure 5] It is a cross-sectional view taken along line A-A in FIG. 3, with a portion shown in side view. [Figure 6] It is an exploded perspective view of the blower shown in FIG. 1. [Figure 7] It is an explanatory diagram schematically showing, in plan view, a stationary guide formed in the blower according to the embodiment. [Figure 8] This is an explanatory diagram showing the blower device according to the embodiment, in which the projection is engaged with the fixing guide, and shows the case where the flange of the intake side case and the flange of the blower side case are furthest apart (fixing position A). [Figure 9] Similar to Figure 8, this is an explanatory diagram showing the state in which the projection is engaged with the fixing guide, and it shows the case where the flange of the intake side case and the flange of the blower side case are closest to each other, as shown in fixing position B. [Figure 10] Similar to Figures 8 and 9, this is an explanatory diagram showing the state in which the projection is engaged with the fixing guide, and it shows the case where the flange of the intake side case and the flange of the blower side case are separated at a position intermediate between fixing position A and fixing position B, which is fixing position C. [Figure 11] This is a diagram showing the main parts of Figure 5. [Figure 12] This figure shows a cross-sectional view of the airflow adjustment member formed in the blower according to the embodiment. [Figure 13] This is a schematic diagram showing the airflow through the guard when using the blower according to the embodiment. [Figure 14] This is a schematic diagram showing the airflow through the guard when using the blower device described in the comparative example. [Figure 15] This is a schematic explanatory diagram showing a garment with a blower according to an embodiment. [Figure 16] This is a schematic diagram showing a side view of the procedure for attaching the blower device according to the embodiment to the fabric of a garment equipped with a blower device. [Figure 17] This is a schematic diagram showing, in perspective, the procedure for attaching the blower device according to the embodiment to the fabric of a garment equipped with a blower device. [Figure 18] Figure 15 is a cross-sectional view taken along the BB arrow, and is a schematic diagram showing the airflow through the guard within the space between the clothing and the body. [Modes for carrying out the invention]

[0031] The following describes in detail the blower device and the garment with the blower device according to this disclosure, with reference to embodiments. The blower device according to this disclosure is a fan unit that supplies wind through a guard, for example, to the body, by the rotation of its blades. The body temperature regulating garment according to this disclosure is configured by attaching the blower device according to this disclosure to the garment fabric as a fan unit that sends air, and this blower device makes it possible to blow air towards the body.

[0032] First, the configuration of the blower 1 will be explained. Figure 1 is a side view showing the blower according to an embodiment. Figure 2 is a plan view of the blower shown in Figure 1 as seen from the intake side, and Figure 3 is a plan view as seen from the blower side. Figure 4 is a perspective view of the blower shown in Figure 1 as seen from the blower side. Figure 5 is a cross-sectional view taken along the line AA in Figure 3, showing a part of the blower from the side. Figure 6 is an exploded perspective view of the blower shown in Figure 1.

[0033] In the blower device 1 according to this embodiment, in Figure 1, the vertical direction is defined as the axial direction AX along the axis C, in Figure 2, the direction perpendicular to the axial direction AX is defined as the radial direction RD, and the circumferential direction centered on the axis C along the axial direction AX is defined as the circumferential direction CR. In Figures 3 and beyond, the directions are the same as those defined in Figures 1 and 2. Also, in each figure, the power supply, electrical wiring, connectors, etc. required for the blower device 1 are omitted from the illustration.

[0034] As shown in Figures 1 to 6, the blower 1 comprises a case body 2, a blade body 60, a drive unit 70, and the like.

[0035] <Regarding the wing body 60 and the drive unit 70> As shown in Figures 5 and 6, the blade body 60 consists of a boss portion 62 and a blade 61. The blade body 60 is a propeller fan that can rotate around a rotating shaft 71 located on the axis C, with the help of a drive unit 70 which has a rotating shaft 71, its bearing, an electric motor, etc. The blade body 60 and the drive unit 70 are housed in the internal space 30S of the case.

[0036] The blower-side case section 30 is provided with a power connection section 72. The power connection section 72 is detachably connected to a power supply-side connecting member (not shown), such as a plug, which electrically connects to the power supply, and the drive unit 70 is energized via the power supply through the electrical connection between the power supply-side connecting member and the power connection section 72.

[0037] In this embodiment, nine blades 61 are connected to the boss portion 62. However, the number of blades 61 connected to the boss portion 62 is not limited to nine; for example, it could be five, seven, or an odd number greater than nine. This is because when the blade body is composed of an odd number of blades, vibrations generated during the rotation of the blades are reduced compared to when the blades are composed of an even number of blades.

[0038] Furthermore, if the number of blades 61 is greater than 5, for example, to 7 or 9, the twist angle of each blade 61 connected to the boss portion 62 will inevitably be larger compared to the case where there are 5 blades. When the twist angle of the blades 61 is larger, the wind is blown out from almost the entire surface of the blades 61, making it easier to equalize the wind pressure distribution on the surface of the blades 61, and thus reducing noise during airflow.

[0039] Moreover, when the number of wings 61 is 7 or 9, the spacing between adjacent wings 61 becomes smaller compared to when there are 5 wings. As a result, the airflow continuously sent out from each wing 61 can be made to have slightly less interruption in the airflow, and the wind becomes a smooth airflow with controlled strength, which is sent to the person receiving the wind in a way that feels gentle on the skin.

[0040] <Regarding the intake side case section 10> The case body 2 consists of an intake-side case section 10 and a blower-side case section 30. The intake-side case section 10 includes an intake-side flange 11, an intake-side peripheral wall section 12, an intake section 13, etc.

[0041] The intake side flange 11 is formed in an annular shape, and the inner circumference of this intake side flange 11 forms the intake section 13. The intake section 13 has an intake port 14 that takes in air AR into the case body 2. In this embodiment, as shown in Figures 1 and 5, the intake section 13 is formed in a shape that rises gently from the inner circumference of the intake side flange 11 toward the central part passing through the axis C, with a height difference M of approximately 3 mm as an example.

[0042] However, it is preferable that the intake section 13 has a height difference M that is closer to 0 mm. As will be described later, when the blower 1 is attached to the garment, if the intake section has a height difference M of, for example, 10 mm or more, the intake section of the blower becomes more likely to come into contact with obstacles in its vicinity.

[0043] Furthermore, the wearer of this garment is affected by the protrusion of the air intake of the blower. For this reason, if the air intake 13 of the air intake side case 10 has a flatter shape, it is easier to avoid contact with surrounding obstacles, and thus reduce adverse effects on the wearer's movements.

[0044] The intake side peripheral wall portion 12 is integral with the intake side flange 11 and is erected in a cylindrical shape from the inner peripheral edge of the intake side flange 11. As shown in Figures 5 and 6, projections 20 are provided on the outer peripheral surface 12a of the intake side peripheral wall portion 12 at multiple locations distributed in the circumferential direction and axial direction AX.

[0045] <Regarding the blower side case section 30> As shown in Figures 1 and 3 to 6, the blower side case portion 30 includes a guard 3, a blower side flange 31, a blower side peripheral wall portion 32, and an internal case space 30S surrounded by the blower side peripheral wall portion 32. The blower side flange 31 is formed in an annular shape. The blower side peripheral wall portion 32 is integral with the blower side flange 31 and is erected cylindrically from the inner circumference of the blower side flange 31.

[0046] The outer circumferential surface 32a of the blower-side peripheral wall portion 32 is formed as a gripping portion 33 that extends along the entire circumference CR in the circumferential direction, with recesses and protrusions alternating. As a result, when a user of the blower device 1 rotates the blower-side case portion 30 relative to the intake-side case portion 10 around the axis C, the user can firmly grasp the gripping portion 33 with their fingers while preventing slippage. Therefore, the blower-side case portion 30 is easily rotated by the user's fingers.

[0047] <Regarding the assembly of the intake side case section 10 and the blower side case section 30> Figure 7 is a schematic explanatory diagram showing a fixed guide formed in the blower according to the embodiment in a plan view. As shown in Figures 6 and 7, a plurality of fixed guides 40 are arranged on the inner circumferential surface 32b of the blower-side peripheral wall portion 32. The diameter of the inner circumferential surface 32b of the blower-side peripheral wall portion 32 is larger than the outer diameter of the projection piece 20 provided on the outer circumferential surface 12a of the intake-side peripheral wall portion 12, and is sized to allow the projection piece 20 and the fixed guide 40 to engage with each other.

[0048] As shown in Figure 7, the fixed guide 40 extends in an arc shape connecting one end 40a and the other end 40b along the inner circumferential surface 32b of the air blower side peripheral wall portion 32 when viewed from the axial direction AX, and is formed in an inclined manner at an angle Φ from the horizontal when viewed from the radial direction RD. The fixed guide 40 has a height difference H in the axial direction AX between one end 40a and the other end 40b. Multiple fixed guides 40 are provided in an intermittent arrangement with respect to the axial direction AX at a predetermined pitch that matches the dimensions of the projection piece 20.

[0049] The fixed guide 40 has a stopper 44 at the other end 40b, on the sliding side of the projection 20 formed on the outer peripheral surface 12a of the intake side peripheral wall portion 12, via an introduction surface 41, a first restricting surface 43a, a first retaining surface 42a, a second restricting surface 43b, a second retaining surface 42b, a third restricting surface 43c, a third retaining surface 42c, a fourth restricting surface 43d, a fourth retaining surface 42d, a fifth restricting surface 43e, and a fifth retaining surface 42e, in order from the one end 40a side with respect to the lead direction Le.

[0050] The first retaining surface 42a, the second retaining surface 42b, the third retaining surface 42c, the fourth retaining surface 42d, and the fifth retaining surface 42e are formed with a smooth, even surface shape and serve as surfaces for holding the projection piece 20. The first restricting surface 43a, the second restricting surface 43b, the third restricting surface 43c, the fourth restricting surface 43d, and the fifth restricting surface 43e are formed in a V-shape that protrudes from the first retaining surface 42a, the second retaining surface 42b, the third retaining surface 42c, the fourth retaining surface 42d, and the fifth retaining surface 42e.

[0051] The first regulating surface 43a, the second regulating surface 43b, the third regulating surface 43c, the fourth regulating surface 43d, and the fifth regulating surface 43e, along with the stopper 44, restrict the movement of the projection 20, which is positioned on the retaining surface such as the first retaining surface 42a, in the lead direction Le, from both sides of the projection 20. In addition, the movement of the projection 20 positioned on the retaining surface such as the first retaining surface 42a is restricted in the axial direction AX by contact with the adjacent fixed guide 40.

[0052] In the blower 1, the intake side peripheral wall portion 12 of the intake side case portion 10 is inserted into the internal case space 30S of the blower side case portion 30. The intake side case portion 10 and the blower side case portion 30 rotate relative to each other around the axis C, and the projection piece 20 of the intake side case portion 10 and the fixing guide 40 of the blower side case portion 30 are positioned by engagement. This assembles the intake side case portion 10 and the blower side case portion 30.

[0053] In the blower 1, the axial distance AX between the intake side flange 11 of the intake side case portion 10 and the blower side flange 31 of the blower side case portion 30 changes depending on the position of the retaining surface that holds the projection piece 20 among the first retaining surface 42a, second retaining surface 42b, third retaining surface 42c, fourth retaining surface 42d, and fifth retaining surface 42e on the fixed guide 40.

[0054] Figure 8 is an explanatory diagram showing the blower according to an embodiment, in which the projection is engaged with the fixing guide, and shows the case where the flange of the intake side case and the flange of the blower side case are furthest apart (fixing position A).

[0055] As an example, as shown in Fig. 8, when the protruding piece 20 slid from the introduction surface 41 is positioned on the first holding surface 42a located between the fixed guide 40, the first restriction surface 43a and the second restriction surface 43b, the intake-side flange 11 and the blower-side flange 31 are in the fixed position A separated by the maximum inter-flange distance K1.

[0056] Fig. 9 is an explanatory view showing a state where the projection is engaged with the fixed guide similarly to Fig. 8, and shows the case of the fixed position B where the flange of the intake-side case portion and the flange of the blower-side case portion are closest to each other.

[0057] Further, as shown in Fig. 9, when the protruding piece 20 is positioned on the fifth holding surface 42e located between the fixed guide 40, the fifth restriction surface 43e and the stopper 44, the intake-side flange 11 and the blower-side flange 31 are in the fixed position B separated by the minimum inter-flange distance K5 (K5<K1).

[0058] Fig. 10 is an explanatory view showing a state where the projection is engaged with the fixed guide similarly to Fig. 8 and Fig. 9, and shows the case of the fixed position C where the flange of the intake-side case portion and the flange of the blower-side case portion are separated at an intermediate position between the fixed position A and the fixed position B.

[0059] Further, as shown in Fig. 10, when the protruding piece 20 is positioned on the third holding surface 42c located between the fixed guide 40, the third restriction surface 43c and the fourth restriction surface 43d, the intake-side flange 11 and the blower-side flange 31 are in the fixed position C separated by the inter-flange distance K3 (K5<K3<K1) which is between the inter-flange distance K1 and the inter-flange distance K5.

[0060] Thus, the blower 1 can vary the axial distance AX between the intake-side flange 11 of the intake-side case portion 10 and the blower-side flange 31 of the blower-side case portion 30. Therefore, when the blower 1 is installed by sandwiching the peripheral edge 103 of the garment fabric 101 between the intake-side flange 11 and the blower-side flange 31, as in the garment with a blower 100 described later, the thickness of the gripped portion such as the peripheral edge 103 that can be sandwiched can be accommodated over a wide range.

[0061] As shown in Figure 6, the blower device 1 according to this embodiment is configured such that the projection piece 20 is provided on the outer peripheral surface 12a of the intake side peripheral wall portion 12 of the intake side case portion 10, and the fixing guide 40 is provided on the inner peripheral surface 32b of the blower side peripheral wall portion 32.

[0062] However, the blower may be configured in a way that includes a projection piece 20 provided on the outer circumferential surface of the blower-side peripheral wall, and a fixed guide 40 provided on the outer circumferential surface of the intake-side peripheral wall of the intake-side case.

[0063] Furthermore, the blower device 1 according to this embodiment has a structure in which the intake side case portion 10 and the blower side case portion 30 are positioned and assembled by the engagement of the projection piece 20 and the fixing guide 40.

[0064] However, the blower device may be constructed in a way that secures the intake side case and the blower side case together, for example, by screwing, fitting, or fastening screws between them. The means of securing the intake side case and the blower side case are not particularly limited and can be changed in various ways.

[0065] Furthermore, the blower device 1 according to this embodiment has a structure in which the intake side peripheral wall portion 12 of the intake side case portion 10 is inserted inside the blower side peripheral wall portion 32 of the blower side case portion 30, thereby assembling the intake side case portion 10 and the blower side case portion 30.

[0066] However, in the blower device 1, the blower device according to the present disclosure may be structured such that the insertion-side member faces the blower-side peripheral wall portion 32, by inserting the blower-side peripheral wall portion of the blower-side case portion into the inside of the intake-side peripheral wall portion of the intake-side case portion, thereby assembling the intake-side case portion and the blower-side case portion.

[0067] <About Guard 3> As shown in Figures 4 to 6, the guard 3 is formed on the outer circumference of the drive unit 70, which is located in the center of the radial direction RD, opposite the blower-side flange 31 in the axial direction AX. The guard 3 covers the blade 61 that blows air by rotation and the downwind side Fd of the blown air, while allowing ventilation through the gap 4. The guard 3 is formed in such a manner that it covers the case internal space 30S surrounded by the blower-side peripheral wall 32 from the inner circumference of the blower-side peripheral wall 32 toward the central part passing through the axis C. The air blown out from the blade 61 passes through the guard 3 and is supplied to the outside.

[0068] Figure 11 shows the main parts of Figure 5. Figure 12 is a cross-sectional view of the airflow adjustment member formed in the blower according to the embodiment.

[0069] The guard 3 has one or more wind direction adjustment members 50, and in this embodiment, as shown in Figures 3 to 12, three wind direction adjustment members 50A, 50B, and 50C (50) are formed on the guard 3.

[0070] The three wind direction adjustment members 50A, 50B, and 50C (50) all consist of a laminar flow introduction section 51 and a wind direction variable section 56, as shown in Figures 11 and 12. The laminar flow introduction section 51 is a plate-shaped portion including a first side surface 52 (52A, 52B) that is arranged parallel to the rotation axis 71 of the blade body 60, i.e., along the axial direction AX.

[0071] As shown in Figures 11 and 12, the wind direction variable section 56 is formed in a manner that is integrally connected with the laminar flow introduction section 51. The wind direction variable section 56 is a plate-like portion that includes a second side surface 57 (57A, 57B) which is bent from the first side surface 52 (52A, 52B) in a direction outward in the radial direction RD with respect to the axis C (to the right in the left-right direction in Figure 11).

[0072] In Guard 3, the three wind direction adjustment members 50A, 50B, and 50C(50) are all arranged in an arc shape in the circumferential direction CR with respect to the axis C. The three wind direction adjustment members 50A, 50B, and 50C(50) are arranged concentrically with respect to the radial direction RD, with a gap 4 in between, with respect to the axis C.

[0073] In other words, as shown in Figures 11 and 12, the wind direction adjustment members 50A, 50B, and 50C (50) are arranged to be adjacent to the gap 4 which is the wind flow path FL with respect to the radial direction RD. In the wind direction adjustment members 50A, 50B, and 50C (50), the first side surface 52 and the second side surface 57 are positioned in contact with the wind flow path FL.

[0074] Furthermore, in the three wind direction adjustment members 50A, 50B, and 50C (50), as shown in Figures 11 and 12, the bending angle θ, which is the angle between the second side surface 57 and the first side surface 52, increases for each wind direction adjustment member 50 from the inside of the radial RD (left side in the left-right direction in Figure 11) to the outside of the radial RD (right side in the left-right direction in Figure 11).

[0075] Specifically, when there are three wind direction adjustment members 50 on the guard 3, as shown in Figures 11 and 12, the first wind direction adjustment member 50A(50), which is positioned closest to the axis C, has a bending angle θ1(deg) of, for example, 0≦θ1≦50, and in this embodiment, the bending angle θ1=45(deg).

[0076] Furthermore, in the second wind direction adjustment member 50B(50) adjacent to the first wind direction adjustment member 50A, the bending angle θ2(deg) is, for example, 0≦θ2≦70, and in this embodiment, the bending angle θ2=60(deg). Also, in the third wind direction adjustment member 50C(50) positioned furthest from the axis C, the bending angle θ3(deg) is, for example, 0≦θ3≦90, and in this embodiment, the bending angle θ3=75(deg).

[0077] Note that the bending angle θ1=45 (deg), bending angle θ2=60 (deg), and bending angle θ3=75 (deg) set by the three wind direction adjusting members 50A, 50B, 50C (50) are not limited in any way, and can be changed as appropriate.

[0078] Here, let the number of the wind direction adjusting members 50 be n (0<n). When there are a plurality of wind direction adjusting members 50, as shown in FIGS. 11 and 12, let x=1, which represents the first wind direction adjusting member 50, referring to the wind direction adjusting member 50 arranged at the position closest to the axis C. Further, let x=n, which represents the n-th wind direction adjusting member 50, referring to the wind direction adjusting member 50 arranged at the position farthest from the axis C. Let the magnitude of the bending angle θ (deg) of the wind direction adjusting member 50 be y (0≦y≦90), and y is a linear function of the variable x. Note that a (0<a) is a coefficient, and b (0≦b≦90) is a constant representing an angle (deg).

[0079] Based on such a premise, the bending angle θ of the wind direction adjusting member 50 is set by the following formula (1). y=a*x+b ... Formula (1)

[0080] That is, regardless of the number of the wind direction adjusting members 50 disposed on the guard 3, in each wind direction adjusting member 50, the bending angle θ of the second side surface 57 relative to the first side surface 52 satisfies the condition of 0≦θ≦90 (deg) as shown in formula (1), and it is only required that the second side surface 57 is bent and connected relative to the first side surface 52 corresponding to the flow direction of the air blown by the blades 61.

[0081] Further, in the wind direction adjusting member, a rotation mechanism may be provided between the laminar flow introduction portion and the variable wind direction portion, and the variable wind direction portion rotates relative to the laminar flow introduction portion, so that the magnitude of the bending angle θ of the second side surface relative to the first side surface can be freely changed.

[0082] In all three wind direction adjusting members 50A, 50B, and 50C (50), as shown in Figures 11 and 12, the wind inlet end face 53, which is located on the windward side of the laminar flow introduction section 51, and the first side surface 52 (52A, 52B) are connected via an R-shaped inlet side curved surface 54.

[0083] The radius of curvature of the inlet-side curved surface 54 is a ratio of the distance (thickness) between the opposing first side surfaces 52A and 52B in Figure 12, and is, for example, 10 to 50%. In this embodiment, the radius of curvature of the inlet-side curved surface 54 is approximately 30% of the thickness between the first side surfaces 52A and 52B.

[0084] Furthermore, the connection between the air intake side end face 53 and the first side surface 52A, and between the air intake side end face 53 and the first side surface 52B, may be made with a chamfered surface.

[0085] Furthermore, in all three wind direction adjustment members 50A, 50B, and 50C (50), the first side surface 52A (52) and the second side surface 57A (57), which are located on the radially outer side RD (right side in the left-right direction in Figure 12), are connected via an R-shaped bent side curved surface 58.

[0086] The radius of curvature of the bent side curved surface 58 is, as shown in Figure 12, a ratio of 50-90% of the distance (thickness) between the opposing second side surfaces 57A and 57B. In this embodiment, the radius of curvature of the bent side curved surface 58 is approximately 80% of the thickness between the second side surfaces 57A and 57B.

[0087] Furthermore, the first side surface 52A and the second side surface 57A may be connected to each other by a planar connection.

[0088] <Regarding the arrangement of the wind direction adjustment member 50 and the wing 61> In the blower 1, as shown in Figure 11, the three wind direction adjustment members 50A, 50B, and 50C (50) are positioned downwind Fd of the blade body 60 compared to the blade 61. With respect to the axial direction AX, the distance between the downwind portion 61X of the blade 61, which is located furthest downwind Fd, and the wind inlet side end face 53 of the laminar flow introduction portion 51 of the wind direction adjustment member 50, which is located furthest upwind Fw, is at most 10 mm or less.

[0089] Specifically, in the case of the first wind direction adjustment member 50A(50), which is positioned closest to the axis C among the three wind direction adjustment members 50A, 50B, and 50C(50), the distance Da between the leeward portion of the wing 61X and the wind inlet side end face 53 is approximately 7 mm. In the case of the third wind direction adjustment member 50C(50), which is positioned furthest from the axis C, the distance Dc between the leeward portion of the wing 61X and the wind inlet side end face 53 is approximately 2 mm.

[0090] <About the verification experiment> The applicant conducted an experiment to investigate the effect of differences in the separation distance between the wind direction adjustment member 50 and the wing 61 on the airflow blown from the wing 61. The experiment used the blower 1 according to the embodiment and the blower 1X according to the comparative example, and confirmed how the state of the airflow blown from the wing 61 through the guard 3 differed between the embodiment and the comparative example.

[0091] The subjects, at a position several centimeters away from the guard 3, observed the behavior of the airflow AR blown out through the gap 4 in the guard 3, and compared the differences in airflow conditions between the blower 1 according to the example and the blower 1X according to the comparative example, based on their own sensory evaluation. Figure 13 is a schematic diagram showing the airflow through the guard when using the blower according to the example, and Figure 14 shows a schematic diagram showing the airflow through the guard when using the blower according to the comparative example.

[0092] As shown in Figure 13, in the blower device 1 according to the embodiment, the distance D1c between point X and point P with respect to the axial direction AX is the aforementioned distance Dc = approximately 2 mm. Point X is any point located on the horizontal line passing through the leeward portion 61X of the blade 61 with respect to the radial direction RD. Point P is any point located on the horizontal line passing through the wind inlet side end face 53 of the third wind direction adjustment member 50C with respect to the radial direction RD.

[0093] On the other hand, in the comparative example blower 1X, the distance D2c between point X and point Q with respect to the axial direction AX is greater than 10 mm. Point X is any point located on the horizontal line passing through the leeward portion 61X of the blade 61 with respect to the radial direction RD. Point Q is any point located on the horizontal line passing through the wind inlet side end face 53 of the third wind direction adjustment member 50C with respect to the radial direction RD.

[0094] (Experimental results) The experimental results are shown in Figures 13 and 14. In the case of the blower 1 according to the embodiment, as shown in Figure 13, the wind AR sent out from the blade 61 was blown out through the gap 4 by the wind direction adjustment member 50, with a flow that included a flow along the axial direction AX and a flow that spread sufficiently toward the radial direction RD, and diffused from the guard 3 into a wide blowing area STw. The angle of the blowing area STw was approximately 100 to 150 degrees as an example.

[0095] In the case of the comparative example blower 1X, as shown in Figure 14, the wind AR sent out from the blade 61 was blown out through the gap 4 by the wind direction adjustment member 50 in the form of a flow in the axial direction AX and a flow that did not spread sufficiently in the radial direction RD, resulting in a blower region STn that hardly diffused from the guard 3 compared to the example. The angle of the blower region STn was, for example, about 40 to 60 degrees.

[0096] (Consideration) As shown in Figures 13 and 14, in both the blower 1 according to the embodiment and the blower 1X according to the comparative example, the rotation of the blade 61 in the rotational direction RT causes wind AR to be sent downwind Fd and blown towards the body through the gap 4 in the guard 3.

[0097] As shown in Figure 13, in the blower 1 according to the embodiment, the distance D1c between point X and point P is approximately 2 mm, which is less than 10 mm, a guideline for maintaining a generally laminar flow state F1 well. As a result, the wind AR sent out from the blade 61 flows easily into the gap 4 while maintaining a generally laminar flow state F1 well from point X to point P.

[0098] When the wind AR flows downwind Fd while maintaining a generally laminar flow state F1 and enters the gap 4 between the guards 3, the wind AR flows in a straight airflow state along the first side surface 52 of the laminar flow introduction section 51 of the wind direction adjustment member 50 towards the wind direction variable section 56. Then, as the wind AR, in a straight airflow state, approaches the wind direction variable section 56, it hits the second side surface 57 which is bent radially outward (away from the axis C in Figure 13), and the direction of the wind AR changes to a direction along the second side surface 57.

[0099] In addition, in the three wind direction adjustment members 50A, 50B, and 50C (50), the bending angle θ for each wind direction adjustment member 50 is larger for the second wind direction adjustment member 50B than for the first wind direction adjustment member 50A, and larger for the third wind direction adjustment member 50C than for the second wind direction adjustment member 50B.

[0100] Therefore, when the wind AR, which is in a straight airflow state, approaches the wind direction variable section 56 of the three wind direction adjustment members 50A, 50B, and 50C (50), in the first wind direction adjustment member 50A, the wind AR hits the second side surface 57 which is bent at a bending angle θ1 = 45 (deg) radially outward (away from the axis C in Figure 13), and the wind AR changes direction as it flows along the second side surface 57.

[0101] Similarly, in the second wind direction adjusting member 50B, the wind strikes the second side surface 57 which is bent radially outward at a bending angle θ2 = 60 degrees, and the flow follows along the second side surface 57, causing the direction of the wind AR to change more significantly compared to the case of the first wind direction adjusting member 50A.

[0102] Similarly, in the third wind direction adjusting member 50C, the wind strikes the second side surface 57 which is bent radially outward at a bending angle θ3 = 75 degrees, and the flow follows along the second side surface 57, causing the direction of the wind AR to change more significantly compared to the case of the second wind direction adjusting member 50B.

[0103] Therefore, in the blower device 1 according to the embodiment, as shown in Figure 13, the wind AR is thought to have been blown out through the gap 4 by the wind direction adjustment member 50, with a flow that includes a flow along the axial direction AX and a flow that spreads sufficiently toward the radial direction RD, and diffused from the guard 3 into a wide blowing area STw.

[0104] In contrast, as shown in Figure 14, in the comparative example blower 1X, the distance D2c between point X and point Q exceeds 10 mm, which is an indicator that a generally laminar flow state F1 can be maintained well. In the case of the comparative example, when the wind AR is blown out from the blade 61, it is presumed that a generally laminar flow state F1 is maintained from point X to point P, which is before point Q.

[0105] However, once the wind AR sent out from the wing 61 exceeds point P, which is an indicator point where the laminar flow state F1 is generally maintained well, turbulence is likely to occur in the wind AR airflow between point P and point Q. As a result, the wind AR airflow cannot maintain the laminar flow state F1 and becomes, for example, an airflow accompanied by vortices, making it difficult for the wind AR to flow straight downwind Fd toward the three wind direction adjustment members 50A, 50B, and 50C (50).

[0106] In other words, the main cause of turbulence in the airflow is that, while the wind AR is being blown by the rotation of the wing body 60, more precisely, the airflow is intermittently sent from each wing 61 to the leeward side Fd, one wing at a time. At this time, for airflows sent from adjacent wings 61 with a time difference, the direction of flow of the airflow sent earlier and the airflow sent later become significantly different once they cross point P.

[0107] Therefore, the merging of the previously sent airflow and the subsequently sent airflow generates vortices in the wind AR flow. This is because the wind AR airflow becomes turbulent due to the generation of vortices, making it impossible to maintain a good laminar flow state F1. Furthermore, as the wind AR sent from the blade 61 moves further away from the blade 61 beyond point P, it becomes more susceptible to adverse effects on the airflow due to disturbances caused by ambient conditions such as the outside air surrounding the rotating blade body 60, making it difficult to maintain a laminar flow state F1.

[0108] For these reasons, even if the wind AR is blown from the wing 61 in a laminar flow state F1, by the time it reaches the three wind direction adjustment members 50A, 50B, 50C (50) and flows into the gap 4 between the guards 3, the wind AR is already in a turbulent airflow state, i.e., a turbulent flow state F2, accompanied by vortices and the like.

[0109] When the wind AR, which has entered a turbulent state F2, flows into the gap 4 and passes through the wind direction adjustment member 50 from the laminar flow introduction section 51 to the wind direction variable section 56, the wind AR does not easily flow along the second side surface 57, even when it hits the second side surface 57 which is bent radially outward (away from the axis C in Figure 14). Therefore, in the wind direction adjustment member 50, the direction of the wind AR is less likely to change along the second side surface 57 compared to the embodiment.

[0110] Therefore, in the comparative example blower 1X, the wind AR is thought to have been blown out through the gap 4 by the wind direction adjustment member 50 in the form of a flow directed axially AX and a flow that does not sufficiently spread radially RD, resulting in a blower region STn that is not sufficiently diffused from the guard 3 compared to the example.

[0111] <Overview of garment 100 with a fan> Next, the outline of the garment with a blower 100 will be briefly explained using Figures 15 and 18. Figure 15 is an explanatory diagram schematically showing the garment with a blower according to the embodiment. Figure 18 is a cross-sectional view taken along the BB arrow in Figure 15, and is a schematic diagram showing the flow of air blown out through the guard in the space between the garment and the body.

[0112] As shown in Figures 15 to 18, the garment with a fan 100 is made by attaching the fan unit described above, the fan 1 according to this embodiment, to a garment fabric 101 that forms a vest, as an example. The garment with a fan 100 is configured so that the fan 1 can blow air AR towards the user's body BS.

[0113] The garment with a fan 100 is used by people who particularly need cool air, such as workers who work outdoors in extreme heat, workers who wear work clothes in hot and humid indoor environments, and people who engage in recreation, sports, or spectating in the scorching sun.

[0114] Furthermore, the form of the garment fabric 101 is not limited to a vest and can be changed in various ways. Figure 15 illustrates a garment 100 with two blowers 1 attached, but the number of blowers 1 attached to the garment fabric 101 is merely an example of two and is not limited to this embodiment, and can be changed as appropriate.

[0115] In the garment with a blower 100, when attaching the blower 1 to the garment fabric 101, as shown in Figures 15 to 18, the intake side peripheral wall portion 12 of the intake side case portion 10 is inserted from the outside of the garment fabric 101 through the opening 102 drilled in the garment fabric 101. With the intake side flange 11 of the intake side case portion 10 in contact with the peripheral edge portion 103 formed with increased rigidity on the outer circumference of the opening 102, the blower side case portion 30 is positioned between the user's body BS and the inside of the garment fabric 101, with the blower side flange 31 facing inward towards the garment fabric 101.

[0116] The intake-side peripheral wall portion 12 of the intake-side case portion 10, through which the opening 102 is inserted, is located between the user HM's body BS and the inside of the clothing fabric 101. This intake-side peripheral wall portion 12 is inserted inside the blower-side peripheral wall portion 32 of the blower-side case portion 30. Then, as the intake-side case portion 10 and the blower-side case portion 30 are rotated relative to each other around the axis C, the projection piece 20 of the intake-side case portion 10 and the fixing guide 40 of the blower-side case portion 30 engage, and the intake-side case portion 10 and the blower-side case portion 30 are assembled.

[0117] Thus, as shown in Figure 18, the peripheral edge 103 of the garment fabric 101 is sandwiched between the intake side flange 11 of the intake side case portion 10 and the blower side flange 31 of the blower side case portion 30, thereby attaching the blower device 1 to the garment fabric 101 of the garment with blower device 100.

[0118] Next, the operation and effects of the blower device 1 and the garment with the blower device according to this embodiment will be described.

[0119] The blower 1 according to this embodiment has a blade 61 that sends wind AR by rotation, and a guard 3 that covers the periphery of the blade 61 etc. with the downwind side Fd to which the wind AR is blown, and is formed to allow ventilation, and the wind AR is supplied by passing through the guard 3, the guard 3 has one or more (three in this embodiment) wind direction adjustment members 50A, 50B, 50C (50), and the wind direction adjustment member 50 has a laminar flow introduction section 51 including a first side surface 52 parallel to the rotation axis 71 of the blade 61, and a center of the rotation axis 71 The wind direction variable section 56 is connected to the first side surface 52 (52A, 52B) by bending outward in the radial direction RD, and the wind direction adjustment members 50A, 50B, 50C (50) are adjacent to the gap 4 which is the wind flow path FL with respect to the radial direction RD, and the first side surface 52 (52A, 52B) and the second side surface 57 (57A, 57B) are positioned in contact with the wind flow path FL.

[0120] This feature expands the directivity of the wind AR blown out from the guard 3 compared to conventional blowers described in Patent Document 1, etc., allowing the wind AR to blow out from the guard 3 over a wider area, not only in addition to the flow on the downwind side Fd along the axial direction AX.

[0121] In particular, as illustrated in Figure 18, when the blower 1 is attached to the garment fabric 101 and air AR is blown from the blower 1 to the body BS, the distance from the garment fabric 101 to which the blower 1 is attached to the body BS behind it is only a few centimeters. When the blower 1 is used under such circumstances, the tip 3a of the guard 3 comes into contact with or is in close proximity to the body BS.

[0122] In this case, in a conventional blower such as the one described in Patent Document 1, the wind sent from the propeller flows in a straight line along the axis of the propeller, passing through the gap in the guard located on the leeward side and being supplied to the body. Therefore, the wind mainly hits only the body-side contact area facing the propeller. Moreover, the airflow that drifts in the internal space between the clothing and the body, especially near the tip of the guard, is negatively affected by the wind flow sent from the propeller and the wind flow that changes direction after hitting the body-side contact area, resulting in turbulence due to the generation of vortices.

[0123] Therefore, with conventional blowers, the air blown from the propeller tends to stagnate around the guard, and does not reach a wide area around the blower, encompassing the space between the clothing and the body.

[0124] In contrast, in the blower device 1 according to this embodiment, as shown in Figure 13, the direction of the wind AR sent out from the blade 61 is changed by the wind direction adjustment member 50 in the flow path FL according to the bending angle θ of the second side surface 57 of the wind direction variable part 56. Therefore, as illustrated in Figure 18, even if the blower device 1 attached to the garment 101 sends out wind AR into a narrow space formed at a distance of only a few centimeters from the body BS, the wind AR is able to reach a wide area around the blower device 1.

[0125] Moreover, as shown in Figures 13 and 18, the wind AR sent out from the blade 61 does not linger around the guard 3, but flows through the gap 4 in the guard 3, circulating around the blower 1 in a widely diffused airflow area STw centered on the axis C.

[0126] In addition, the wind AR sent from the wing 61 is designed to spread widely over the area surrounding the blower 1. As a result, the user HM can receive wind AR supplied from the blower 1 not only in the central area of ​​their body BS facing the wing body 60, but also in the surrounding areas away from that central area, thus improving the user HM's comfort.

[0127] Therefore, the blower device 1 according to this embodiment has the excellent effect of being able to control the wind direction so that the wind AR, which is sent out by the rotation of the blade 61, circulates over a wider area on the leeward side FD of the blade 61.

[0128] Furthermore, the blower device 1 according to this embodiment is characterized in that the three airflow adjustment members 50A, 50B, and 50C (50) are arranged concentrically with respect to the radial direction RD, with a gap 4 in between, with the axis C of the rotating shaft 71 in the same direction.

[0129] Due to this feature, the wind AR sent out by the rotation of the blade 61 is directed by the wind direction adjustment member 50 to include a flow along the axial direction AX, and also spreads out sufficiently in the radial direction RD, diffusing through the gap 4 of the guard 3 into a wide airflow area STw.

[0130] Furthermore, in the blower device 1 according to this embodiment, the angle of the second side surface 57A(57) relative to the first side surface 52A(52) of the three wind direction adjustment members 50A, 50B, 50C(50) is characterized in that for each wind direction adjustment member 50A, 50B, 50C(50), the angle increases from the inside of the radial RD to the outside of the radial RD.

[0131] Due to this feature, the wind AR sent out by the rotation of the blade 61 is directed by the wind direction adjustment member 50 to include a flow along the axial direction AX, and also spreads out sufficiently in the radial direction RD, diffusing through the gap 4 of the guard 3 into a wide airflow area STw.

[0132] Furthermore, the blower device 1 according to this embodiment is characterized in that the distance Dc between the leeward portion 61P of the blade 61, which is located on the leeward side Fd, and the wind inlet side end face 53 of the laminar flow introduction portion 51 of the wind direction adjustment member 50, which is located on the windward side Fw, is at most 10 mm or less.

[0133] This feature allows the wind AR, which is sent downwind Fd by the rotation of the blade 61, to be blown out by the wind direction adjustment member 50 in a manner that includes a flow along the axial direction AX and a sufficiently widened flow towards the radial direction RD, diffusing from the guard 3 into a wide airflow area STw.

[0134] Furthermore, in the blower device 1 according to this embodiment, the wind direction adjustment member 50 is characterized in that the wind inlet side end face 53, which is located on the windward side of the laminar flow introduction section 51, and the first side face 52 are connected via an R-shaped inlet side curved surface 54.

[0135] This feature reduces the pressure loss of the airflow as the wind AR, which is attempting to flow into the gap 4, approaches the first side surface 52, suppressing the generation of vortices on the inflow side curved surface 54, and causing the wind AR to flow toward the second side surface 57.

[0136] Furthermore, the blower device 1 according to this embodiment is characterized in that the first side surface 52 and the second side surface 57 of the wind direction adjustment member 50 are connected via an R-shaped bent side curved surface 58.

[0137] This feature reduces the pressure loss of the airflow when the wind AR that flows into the gap 4 flows from the first side surface 52 to the second side surface 57 and passes through the gap 4 upon reaching the second side surface 57, thereby suppressing the generation of vortices on the curved side surface 58 and allowing the wind AR to be supplied to the outside.

[0138] Furthermore, the blower 1 according to this embodiment is characterized in that it is equipped with a drive unit that rotates the blades, and the guard 3 is formed on the outer circumference of the drive unit 70 which is located in the center of the radial direction RD.

[0139] Due to this feature, the drive unit 70 is the part of the blower 1 that does not send out wind AR from the blades 61, so the blower 1 is compactly designed and easy for the user to use.

[0140] Furthermore, in the garment with a blower device 100 according to this embodiment, a fan unit that blows air is attached to the garment fabric 101, and in the garment with a blower device that can blow air towards the body by the fan unit, the fan unit is the blower device 1 according to this embodiment.

[0141] This feature makes the garment with a fan 100 usable by people who particularly need cool air, such as workers who work outdoors in extreme heat, workers who wear work clothes in hot and humid indoor environments, and people who engage in recreation, sports, or spectating in the scorching sun. Compared to garments with conventional fans, the comfort of the wearer HM is improved with the garment with a fan 100.

[0142] Therefore, according to the garment 100 with a blower according to this embodiment, the wind AR blown from the blower 1 provides the excellent effect of improving comfort for the wearer HM.

[0143] Although the present disclosure has been described above in reference to embodiments, the present disclosure is not limited to the above embodiments and can be modified and applied as appropriate without departing from its essence.

[0144] For example, in this embodiment, the fan that blows air by rotating its blades is a propeller fan composed of a blade body 60. However, the fan may be other than a propeller fan composed of a blade body 60, such as an axial fan, turbo fan, or sirocco fan, which have a different structure from the blade body 60.

[0145] Furthermore, although the embodiment described a guard 3 with three wind direction adjustment members 50 formed on it, the number of wind direction adjustment members provided on the guard is not limited to three, and may be one, four or more, for example, and can be changed as appropriate. [Explanation of symbols]

[0146] 1. Blower 3 Guard 4 Gap 50, 50A, 50B, 50C Wind direction adjustment members 51 Laminar flow inlet 52, 52A, 52B First side 53 Wind inflow side end face 54 Inlet side curved surface (curved surface) 56 Wind direction variable section 57, 57A, 57B Second Aspect 58 Bent side curved surface (curved surface) 61 Wings 61P wing leeward part 71 Rotation axis 70 Moving parts 100 Clothing with a fan 101 Clothes BS body CR circumferential direction RD (Radial Direction) AR style FL wind distribution channels Fd downwind Fw (windward side) Dc, D1c, D2c separation distance θ: Angle of inflection (angle between the first and second side surfaces)

Claims

1. In a blower having a blade that blows air by rotation, and a guard that covers the area around the blade on the leeward side where the air is blown, and is formed to allow ventilation, the air is supplied by passing through the guard, The guard has one or more wind direction adjusting members, and the wind direction adjusting member is connected to a laminar flow introduction portion which includes a first side surface parallel to the rotation axis of the wing, and a wind direction variable portion which includes a second side surface which is bent radially outward around the rotation axis and connected to the first side surface. In the guard, the wind direction adjusting member is positioned adjacent to the gap that forms the airflow path in the radial direction, and the first side surface and the second side surface are in contact with the airflow path. A blower characterized by the following.

2. In the blower described in claim 1, The multiple wind direction adjusting members are arranged concentrically with respect to the radial direction, with the center of the rotation axis being concentric, and overlapping intermittently with the gap between them. A blower characterized by the following.

3. In the blower described in claim 2, In the multiple wind direction adjusting members, the angle between the second side surface and the first side surface increases from the radially inward to the radially outward direction for each wind direction adjusting member. A blower characterized by the following.

4. In the blower described in claim 1, The distance between the leeward portion of the wing, which is located on the leeward side, and the wind inlet end face, which is located on the windward side, of the laminar flow introduction portion of the wind direction adjustment member, shall be no more than 10 mm. A blower characterized by the following.

5. In the blower described in claim 1, In the wind direction adjustment member, the wind inlet end face located on the windward side of the laminar flow introduction section is connected to the first side surface via an R-shaped curved surface. A blower characterized by the following.

6. In the blower described in claim 1, In the wind direction adjusting member, the first side surface and the second side surface are connected via an R-shaped curved surface. A blower characterized by the following.

7. In the blower described in claim 1, The unit comprises a drive unit that rotates the aforementioned blade, The guard is formed on the outer circumference of the drive unit located in the radial center. A blower characterized by the following.

8. In a garment equipped with a fan unit that blows air, the fan unit is attached to the garment fabric and the fan unit is capable of blowing air towards the body, The fan unit is a blower according to any one of claims 1 to 7. Clothing equipped with a blower, characterized by the following.

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