Air supply device

Abstract

The invention provides an air supply device (hair dryer) capable of improving non-uniformity of the quantity of ions blown out from each blow-out opening. A hair dryer (1) is provided with: an ion generation unit (24) which is disposed in an internal space (22) of a second body (20) and includes a first electrode (24A) located on one side (S1) of the internal space (22) and a second electrode (24B) located on the other side (S2) of the internal space (22); and a first air guide member (31) that guides a portion of the gas that has passed through the first electrode (24A) toward the second blow-out opening (21B).

Description

Technical Field

[0001] The present invention relates to an air supply device. Background Art

[0002] Conventionally, a dryer equipped with an ion or ozone generating device is known.

[0003] As for this type of dryer, for example, Japanese Patent Application Laid-Open No. 8-47415 discloses a dryer in which an ozone generator is arranged in the lower portion of the internal space of a casing. Summary of the invention

[0004] However, in the above-described conventional technology, since ozone and the like are concentrated in the lower portion of the internal space, when a plurality of outlets are provided, for example, the amount of ions blown out from each outlet may become uneven.

[0005] One aspect of the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to improve the non-uniformity of the amount of ions blown out from each outlet.

[0006] In order to solve the above-mentioned problems, an air supply device involved in one aspect of the present invention comprises: a shell, which has an internal space and a blow-out outlet, the internal space is connected to an air path extending in a first direction, the blow-out outlet includes a first blow-out outlet located on one side and a second blow-out outlet located on the other side separated by an imaginary plane passing through the center of the air path; an ion generating part, which is arranged in the internal space, includes a first electrode located on one side and a second electrode located on the other side; and a first air guide component, which flows into the internal space from the air path, and guides a portion of the gas passing through the first electrode to the second blow-out outlet side. Effects of the Invention

[0007] According to one aspect of the present invention, it is possible to improve the non-uniformity of the amount of ions blown out from each outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a front view showing the appearance of the hair dryer according to the present embodiment. Figure 2 yes Figure 1 AA cross-sectional view of a hair dryer in FIG. Figure 3 It is a block diagram showing the structure of the main part of the hair dryer. Figure 4 It is a front view showing the details of the blow-out unit provided in the hair dryer. Figure 5 yes Figure 2 A BB cross-sectional view of the second body is shown. Figure 6 yes Figure 2 A CC cross-sectional view of the second body is shown. Figure 7 Yes means Figure 6 A cross-sectional view showing the flow of air in the inner space of the second body. DETAILED DESCRIPTION

[0009] [Implementation Method] (Hair dryer) In the present disclosure, an air supply device capable of improving the non-uniformity of the amount of ions blown out from a plurality of outlets together with the wind is realized. However, first, a hair dryer in the present disclosure is described as an example of an air supply device. In the present disclosure, a "hair dryer" refers to any device capable of drying hair by the flow of gas (wind). Therefore, the hair dryer also includes a device capable of drying other objects (e.g., pet hair) together with hair and can be used for purposes other than drying hair.

[0010] Hair dryers include, for example, devices that can dry hair and deliver air to the skin for skin care. The temperature of the air supplied by the hair dryer is not particularly limited. The hair dryer can supply, for example, at least one of warm air and cold air.

[0011] Here, "cold air" is not defined by absolute temperature, but is air supplied without substantially heating the supplied gas by heating means such as a heater. In contrast, "warm air" refers to air supplied by heating the supplied gas by heating means such as a heater.

[0012] In addition, the type of gas is not particularly limited. An example of a preferred gas includes air, nitrogen, oxygen, argon, and carbon dioxide. These gases are preferably gases within the temperature range in which the hair dryer is used.

[0013] (Overview of the hair dryer 1) Hereinafter, one embodiment of the present invention will be described in detail. Figure 1 It is a front view which shows the appearance of the hair dryer 1 which concerns on this embodiment. Figure 2 yes Figure 1 AA cross-sectional view of the hair dryer 1 in FIG.

[0014] like Figure 1 As shown, the hair dryer (air supply device) 1 includes a substantially cylindrical first body (housing) 10 held by a user and a substantially cylindrical second body (housing) 20 connected to one end of the first body 10. The shape of the first body 10 is not limited to a substantially cylindrical shape, and if it is a columnar shape, it may be a polygonal columnar shape, and the corners of the polygonal columnar shape may be rounded.

[0015] In addition, in the drawings, the direction in which the first body 10 extends is marked as a Z direction, the direction perpendicular to the Z direction is marked as an X direction, and the direction perpendicular to the X direction and the Z direction is marked as a Y direction.

[0016] The first body 10 is a shape extending in one direction (Z direction in the figure), and has a grip portion 14 for a user to hold. An operation portion 60 consisting of a plurality of switches is provided on the first body 10. In addition, one end of the first body 10 is connected to the second body 20, and the other end of the first body 10 is connected to a power cable 80.

[0017] An air inlet 13 is disposed between the power cable 80 and the grip 14 on the first body 10. The cross-sectional shape of the air inlet 13 may be, for example, an elongated shape or a dot shape.

[0018] The second body 20 is a shape extending in a direction (Y direction in the figure) substantially orthogonal to a direction in which the first body 10 extends, and one end (back side) of the second body 20 is closed. Specifically, the back side of the second body 20 is a double cover structure, which is closed by the outer cover 29A and the inner cover 29B. In contrast, a blow-out portion 25 is arranged at the other end of the second body 20. A plurality of blow-out ports 21 are provided in the blow-out portion 25. The gas reaches the blow-out portion 25 from the air inlet 13 via the first body 10 and the second body 20. In addition, a distance sensor 23 for measuring the distance to the object to be dried is provided in the blow-out portion 25.

[0019] The distance sensor 23 is, for example, a TOF (Time Of Flight) sensor, and may include a light emitting unit and a light receiving unit formed of a semiconductor laser. However, the distance sensor 23 is not limited to the TOF sensor, and may be of other types. The distance sensor 23 measures the distance between the position where the distance sensor 23 is provided and an object (at least a part of the human body (for example, scalp, hair, etc. or a part) existing in front of the distance sensor 23. When the hair is dried by the hair dryer 1, the distance sensor 23 measures the distance to the hair. In addition, the distance sensor 23 may not be provided.

[0020] In addition, the hair dryer 1 may include at least one light source. The light source may illuminate the blow-out portion 25 or each blow-out port 21 by irradiating light. The light source may illuminate the periphery of the blow-out port 21 by irradiating light. The blow-out port 21 may be clearly indicated by the light source. By including the light source, the user can easily understand where the plurality of blow-out ports 21 are located, and can consciously hold the hair dryer 1 in a posture along the hair flow direction of the hair.

[0021] In addition, the color of the light is red when the wind is hot and blue when the wind is cold. The color of the light can be changed according to the wind temperature or it can be a color that is unrelated to the wind temperature.

[0022] like Figure 2 As shown in FIG. 1 , the hair dryer 1 is provided with an ion generating unit (ion generating part) 24 for supplying ions to the air to be blown and a cylindrical member 40 therein. The ion generating unit 24 is provided on the back side of the blower 25 and has a first electrode 24A and a second electrode 24B protruding into the internal space 22 of the second body 20 (see FIG. 1 ). Figure 6 ).in addition, Figure 2 The figure numeral 22 shows the general shape of the internal space with a single-dot chain line. Figure 2 The cross-sectional view schematically shows the overall shape of the internal space, including a space portion that is not originally shown.

[0023] The ion generating unit 24 generates, for example, both negative ions and positive ions. The first electrode 24A and the second electrode 24B included in the ion generating unit 24 may include a needle-shaped discharge electrode and a ring-shaped induction electrode surrounding the discharge electrode.

[0024] In the plasma region generated by discharge caused by the application of positive voltage in the first electrode 24A, water molecules in the air are electrolyzed to mainly generate hydrogen ions H + The water molecules in the air generate hydrogen ions H + condense around the positive cluster ion H + (H2O) m On the other hand, in the second electrode 24B, in the plasma region generated by discharge caused by application of negative voltage, water molecules in the air are electrolyzed to mainly generate oxygen ions O 2- In addition, water molecules in the air generate oxygen ions O 2- condense around to form negative cluster ions O 2- (H2O) n The generated positive ions and negative ions are discharged together with the air blown out from the blower port 21. In addition, each of the first electrode 24A and the second electrode 24B may generate both positive ions and negative ions.

[0025] The ion generating unit 24 of one embodiment of the present invention is an example of a charged particle supply (generation) mechanism. The charged particle supply (generation) mechanism is a mechanism that supplies (generates) charged particles.

[0026] Charged particles refer to particles that are not electrically neutral, or active species that are activated in a non-electrically neutral state. Charged particles are not limited to particles that have an electric charge, and include particles such as atoms and molecules that have unpaired electrons, although they do not have an electric charge. Specifically, charged particles include, for example, ions that have a positive or negative charge, complexes of ions that have a positive or negative charge, free radicals, electrons, protons, and the like.

[0027] The charged particle supply (generation) mechanism may be, for example, a mechanism that supplies (generates) only one type of charged particles, or a mechanism that supplies (generates) a plurality of types of charged particles. The charged particle supply (generation) mechanism may, for example, supply (generate) both positive ions or complexes of positive ions (for example, complexes of polar molecules such as water molecules coordinated to positive ions) and negative ions or complexes of negative ions (for example, complexes of polar molecules such as water molecules coordinated to negative ions).

[0028] The hair dryer 1 has an air passage 12 extending in a first direction (Z direction) 15 from a first body 10 to a second body 20, and an internal space 22 connected to the air passage 12. The tubular member 40 is a tubular member arranged on the downstream side of the air passage 12 so as to span the first body 10 and the second body 20. A heater 41 is accommodated in the tubular member 40.

[0029] The hair dryer 1 heats the air sucked from the air inlet 13 to the air passage 12 by the heater 41 as needed, and then blows air into the internal space 22 by the fan (electric blower) 11, and blows warm air or cold air to the dried object from the blow-out port 21. Each blow-out port 21 opens toward a second direction (Y direction) 21a different from the first direction 15 extending from the air passage 12. Therefore, warm air or cold air is blown out from each blow-out port 21 toward the second direction 21a. The angle formed by the first direction 15 and the second direction 21a may be 90°, but is not limited thereto. In addition, a substrate is arranged inside the first main body 10 between the fan 11 and the air inlet 13, and the substrate is cooled by the airflow generated by the rotation of the fan 11.

[0030] Figure 3 1 is a block diagram showing the configuration of the main parts of the hair dryer 1. The hair dryer 1 includes a control unit 50 for controlling each part of the hair dryer 1. The control unit 50 controls each part based on a signal input operation from an operation unit 60, for example.

[0031] The operation unit 60 includes an on / off switch 61, a disposable cold air switch 62, a mode change switch 63, and an air volume change switch 64. When the on / off switch 61 is turned on, power from the power cable 80 is supplied to each part of the hair dryer 1. When the on / off switch 61 is turned off, power supply to each part of the hair dryer 1 is stopped. In addition, the disposable cold air switch 62 sends a signal notifying that it is operated to the control unit 50 each time it is operated. The control unit 50 alternately controls the heater 41 to be turned on / off each time it receives a signal from the disposable cold air switch 62. In addition, it is also possible to alternately connect and disconnect the power from the power cable 80 to the heater 41 each time the disposable cold air switch 62 is pressed without passing through the control unit 50. The mode change switch 63 and the air volume change switch 64 send a signal notifying that they are operated to the control unit 50 each time. The control unit 50 controls the rotation speed of the fan 11 , the heating amount of the heater 41 , the on / off of the ion generating unit 24 , and the like according to the signals from the mode change switch 63 and the air volume change switch 64 .

[0032] (Blowout part 25) Figure 4 1 is a front view showing details of the blowing part 25. The blowing part 25 is provided on the downstream side of the gas flow direction in the second body 20. The blowing part 25 is provided with two or more blowing outlets 21, each of which communicates with the internal space 22 of the second body 20.

[0033] like Figure 4 As shown, in the present embodiment, the blowing portion 25 includes four blowing outlets 21, namely, a first blowing outlet 21A, a second blowing outlet 21B, a third blowing outlet 21C, and a fourth blowing outlet 21D. The area in the blowing portion 25 where no blowing outlet 21 is present is a closed area where no gas is blown out, and a wall portion 27 is provided on the central side (inner side) of the first to fourth blowing outlets 21A to 21D.

[0034] The centroids of the first to fourth outlets 21A to 21D on the plane where the blowing portion 25 is arranged are represented by centroids P1 to P4. The four sides formed by connecting the centroids P1 to P4 with straight lines form a square, and the centroid of the square is the centroid C. The centroid C is substantially consistent with the center of the wall surface 27, and the distance sensor 23 is provided at the position of the centroid C.

[0035] (Structure of the internal space 22) Figure 5 yes Figure 2 BB cross-sectional view of the second body 20 in FIG. Figure 6 yes Figure 220. In the following, the direction in which the gas in the first direction 15 flows from the air passage 12 to the internal space 22 is sometimes referred to as the upper side (+ side in the Z direction), and the opposite side is sometimes referred to as the lower side (- side in the Z direction).

[0036] like Figure 5 and Figure 6 As shown, an internal space 22 connected to the air path 12 is formed inside the second body 20. The internal space 22 is a space in the hollow portion of the second body 20 except the air path 12. The second body 20 has a partition 28 that divides the air path 12 in the hollow portion of the second body 20 and constitutes the downstream side of the air path 12. The partition 28 is annular and holds the outer periphery of the cylindrical member 40.

[0037] When the YZ plane passing through the flow path center of the air path 12 is defined as an imaginary plane 43, the internal space 22 becomes a symmetrical shape with respect to the imaginary plane 43. The internal space 22 includes a peak 22A protruding toward the inner side of the internal space 22 at the position where the imaginary plane 43 passes. In addition, the internal space 22 includes a curved surface whose curvature changes smoothly from both sides of the peak 22A. Specifically, the internal space 22 includes a first curved surface 22B that is curved in a convex shape toward the outer side of the internal space 22 on one side S1 relative to the imaginary plane 43 and is connected to the partition wall 28. In addition, the internal space 22 includes a second curved surface 22C that is curved in a convex shape toward the outer side of the internal space 22 on the other side S2 relative to the imaginary plane 43 and is connected to the partition wall 28. As a result, the flow of wind can be smoothly changed in the internal space 22, and air can be supplied with less pressure loss.

[0038] like Figure 5 As shown, on the back side of the internal space 22 of the second main body 20, there are a first hole 26A and a second hole 26B in the area opposite to the first electrode 24A and the second electrode 24B of the ion generating unit 24. The first hole 26A and the second hole 26B are used for maintenance such as cleaning of the first electrode 24A and the second electrode 24B. The first hole 26A is opposite to the first electrode 24A, and the second hole 26B is provided at a position opposite to the second electrode 24B. The first hole 26A and the second hole 26B are formed through the wall surface on the back side forming the internal space 22. As described above, the back side of the second main body 20 is a double cover structure, and the inner cover 29B can be installed and removed, for example, by screws 29C (refer to Figure 2). The first hole 26A and the second hole 26B are closed by the inner cover 29B except for the maintenance of the first electrode 24A and the second electrode 24B. Therefore, when the hair dryer 1 is used, it is possible to suppress the leakage of wind from the first hole 26A and the second hole 26B. It should be noted that the inner cover 29B may be a single component to block both the first hole 26A and the second hole 26B. Alternatively, the inner cover 29B may be separately provided in each hole, such as the inner cover 29B that blocks only the first hole 26A and the inner cover 29B that blocks only the second hole 26B.

[0039] like Figure 6 As shown, the first to fourth outlets 21A to 21D are provided at four corners on the front side of the internal space 22 of the second body 20 so as to be symmetrical with respect to the imaginary plane 43. Specifically, the first outlet 21A is located at a position closer to one side S1 than the partition 28 and at a position closer to the upper side than the partition 28, and the second outlet 21B is located at a position closer to the other side S2 than the partition 28 and at a position closer to the upper side than the partition 28. In addition, the third outlet 21C is located below the second outlet 21B and at the other side S2 of the partition 28, and the fourth outlet 21D is located below the first outlet 21A and at a position closer to one side S1 of the partition 28. In addition, on the front side of the internal space 22 of the second body 20, the first electrode 24A is located at one side S1, and the second electrode 24B is located at the other side S2. The first electrode 24A and the second electrode 24B are arranged symmetrically with respect to the imaginary plane 43, with a gap between them.

[0040] Here, the hair dryer 1 includes a first air guide member 31 on the front side of the internal space 22 of the second body 20, and the first air guide member 31 guides part of the gas that flows from the air path 12 into the internal space 22 and passes through the first electrode 24A to the second outlet 21B side (the other side S2). In addition, the hair dryer 1 includes a second air guide member 32, which flows from the air path 12 into the internal space 22 and guides part of the gas that passes through the second electrode 24B to the first outlet 21A side (the one side S1).

[0041] The first wind guide member 31 and the second wind guide member 32 are arranged at intervals from each other across the imaginary plane 43 in a symmetrical manner with respect to the imaginary plane 43. The first wind guide member 31 and the second wind guide member 32 are plate-shaped members that protrude and extend from the inner wall of the internal space 22 on the downstream side of the first electrode 24A and the second electrode 24B. In more detail, the first wind guide member 31 and the second wind guide member 32 are plate-shaped members that protrude and extend from the inner wall of the internal space 22 on the side where the first electrode 24A and the second electrode 24B are arranged, that is, on the front side, and protrude more than the first electrode 24A and the second electrode 24B. It should be noted that the first wind guide member 31 and the second wind guide member 32 may reach the inner wall of the internal space 22 on the back side opposite to the inner wall of the internal space 22 on the front side where the first electrode 24A and the second electrode 24B are arranged, or may not reach it. The first electrode 24A is located on the wind guide surface side (that is, the surface on the side of the wind path 12) of the first wind guide member 31, and the first blow-out port 21A is located on its back side. In addition, the second electrode 24B is located on the wind guide surface side (i.e., the surface on the wind path 12 side) of the second wind guide member 32, and the second blowing outlet 21B is located on the back side thereof. The first wind guide member 31 and the second wind guide member 32 are configured so that when the respective wind guide surfaces are extended, the respective wind guide surfaces are inclined in a manner of crossing each other at a position above the first wind guide member 31 and the second wind guide member 32. In addition, the peak portion 22A is located at a position further downstream than the first wind guide member 31 and the second wind guide member 32, in other words, on the side opposite to the wind path 12 relative to the first wind guide member 31 and the second wind guide member 32.

[0042] A portion of the gas that has passed through the first electrode 24A is guided to the other side S2 by the first air guide component 31. Therefore, the amount of ions generated by the first electrode 24A blown out from the second outlet 21B and the third outlet 21C arranged on the other side S2 increases. On the other hand, a portion of the gas that has passed through the second electrode 24B is guided to one side (S1) through the second air guide component 32. Therefore, the amount of ions generated by the second electrode 24B blown out from the first outlet 21A and the fourth outlet 21D arranged on one side S1 increases. Therefore, the difference in the amount of ions blown out from the first to fourth outlets 21A to 21D becomes smaller, which can improve the unevenness of the amount of ions blown out from each outlet 21. When the first electrode 24A generates positive ions and the second electrode 24B generates negative ions, the difference in the amount of positive and negative ions blown out from the first to fourth outlets 21A to 21D becomes smaller, which can improve the unevenness of the amount of positive and negative ions blown out from each outlet 21.

[0043] On the other hand, in the absence of the first air guide component 31, most of the gas passing through the first electrode 24A flows to one side S1, and the gas passing through the first electrode 24A is difficult to flow to the other side S2. Similarly, in the absence of the second air guide component 32, most of the gas passing through the second electrode 24B flows to the other side S2, and the gas passing through the second electrode 24B is difficult to flow to one side S1. Therefore, the amount of ions blown out from each outlet 21 becomes uneven. For example, in the case where the first electrode 24A generates positive ions and the second electrode 24B generates negative ions, the difference in the amount of positive and negative ions blown out from the first to fourth outlets 21A to 21D becomes larger. According to this embodiment, the unevenness of the amount of positive and negative ions blown out from such outlets 21 can be improved.

[0044] In addition, the gas that has passed through the first electrode 24A refers to the gas that has passed through the periphery of the first electrode 24A, in other words, the gas that has passed through the periphery of the region where the first electrode 24A is arranged. Similarly, the gas that has passed through the second electrode 24B refers to the gas that has passed through the periphery of the second electrode 24B, in other words, the gas that has passed through the periphery of the region where the second electrode 24B is arranged.

[0045] The first air guide member 31 may also be located on the downstream side of the first electrode 24A in the flow direction (airflow direction) of the gas from the air path 12 to the first outlet 21A. Thus, a portion of the gas that has passed through the first electrode 24A can be appropriately guided to the second outlet 21B side through the first air guide member 31 located on the downstream side of the first electrode 24A. Similarly, the second air guide member 32 may also be located on the downstream side of the second electrode 24B in the flow direction of the gas from the air path 12 to the second outlet 21B. Thus, a portion of the gas that has passed through the second electrode 24B can be appropriately guided to the first outlet 21A side through the second air guide member 32 located on the downstream side of the second electrode 24B.

[0046] In addition, the first electrode 24A and the first wind guide member 31 may also be arranged in the virtual area obtained by extending the air path 12, that is, the extended area 16. Furthermore, the first electrode 24A and the first wind guide member 31 may also be arranged in a row in the first direction 15 in the area of ​​one side S1 in the extended area 16. Thus, a portion of the gas that has passed through the first electrode 24A is easily guided to the second outlet 21B side by the first wind guide member 31. Similarly, the second electrode 24B and the second wind guide member 32 may also be arranged in the extended area 16, which is a virtual area formed by extending the air path 12. In addition, the second electrode 24B and the second wind guide member 32 may also be arranged in a row along the first direction 15 in the area of ​​the other side S2 in the extended area 16. Thus, a portion of the gas that has passed through the second electrode 24B is easily guided to the first outlet 21A side by the second wind guide member 32.

[0047] In addition, the first wind guide member 31 may also include a first end 31A on one side S1 and a second end 31B on the other side S2, and the second end 31B is arranged at a position farther away from the wind path 12 than the first end 31A, that is, a position closer to the top than the first end 31A. Thus, since the first wind guide member 31 is arranged obliquely to the other side S2, it is easy to guide a part of the gas that has passed through the first electrode 24A to the second outlet 21B side through the first wind guide member 31. Similarly, the second wind guide member 32 may also include a first end 32A on the other side S2 and a second end 32B on one side S1, and the second end 32B is arranged at a position farther away from the wind path 12 than the first end 32A, that is, a position closer to the top than the first end 32A. Thus, since the second wind guide member 32 is arranged obliquely to the one side S1, it is easy to guide a part of the gas that has passed through the second electrode 24B to the first outlet 21A side through the second wind guide member 32. In this embodiment, the first end 31A and the first end 32A are arranged at the same height position in the first direction (Z direction). In addition, the second end 31B and the second end 32B are arranged at the same height position in the first direction (Z direction). In addition, the first end 31A and the first end 32A may be located outside the extended area 16 which is a virtual area obtained by extending the air duct 12.

[0048] In addition, the first air guide member 31 may also be arranged at a position closer to the air passage 12 than the first outlet 21A. Thus, before reaching the first outlet 21A from the air passage 12, a portion of the gas that has passed through the first electrode 24A is easily guided to the second outlet 21B side through the first air guide member 31. Similarly, the second air guide member 32 may also be arranged at a position closer to the air passage 12 than the second outlet 21B. Thus, before reaching the second outlet 21B from the air passage 12, a portion of the gas that has passed through the second electrode 24B is easily guided to the first outlet 21A side through the second air guide member 32.

[0049] In addition, when the end of the first blowing outlet 21A located on the side of the wind path 12 in the first direction 15 is set to the lower end (wind path side end) 21E, the position of the first end 31A of the first wind guide member 31 in the first direction 15 is the same as the lower end 21E, or it can be closer to the wind path 12 than the lower end 21E. As a result, before reaching the first blowing outlet 21A from the wind path 12, a part of the gas that has passed through the first electrode 24A is easily guided to the second blowing outlet 21B side through the first wind guide member 31. Similarly, when the end of the second blowing outlet 21B located on the side of the wind path 12 in the first direction 15 is set to the lower end (wind path side end) 21F, the position of the first end 32A of the second wind guide member 32 in the first direction 15 can also be the same as the lower end 21F, or it can be closer to the wind path 12 than the lower end 21F. Thus, before reaching the second outlet 21B from the air passage 12 , a part of the gas that has passed through the second electrode 24B can be easily guided to the first outlet 21A side by the second air guide member 32 .

[0050] (Flow of Gas in Internal Space 22) Figure 7 Yes means Figure 6 FIG. 2 is a cross-sectional view of the flow of air in the internal space 22 shown in FIG. Figure 6 As shown, a portion of the first airflow F1 that has passed through the first electrode 24A in the airflow F flowing from the air path 12 to the internal space 22 is guided by the first air guide component 31 to the other side S2 where the second outlet 21B and the third outlet 21C are located, thereby generating a second airflow F2. In addition, a portion of the third airflow F3 that has passed through the second electrode 24B in the airflow F flowing from the air path 12 to the internal space 22 is guided by the second air guide component 32 to the side S1 where the first outlet 21A and the fourth outlet 21D are located, thereby generating a fourth airflow F4.

[0051] In this way, the first air guide member 31 generates a second air flow F2 that branches from the first air flow F1 flowing on one side S1 and flows toward the other side S2. The second air flow F2 flows toward the third air flow outlet 21C along the second curved surface 22C via the second outlet 21B. In this process, the ions generated by the first electrode 24A are blown out from the second outlet 21B and the third outlet 21C together with the gas. In addition, the fourth air flow F4 that branches from the third air flow F3 flowing on the other side S2 and flows toward the one side S1 is generated by the second air guide member 32. The fourth air flow F4 flows toward the fourth outlet 21D via the first outlet 21A along the first curved surface 22B. In this process, the ions generated by the second electrode 24B are blown out from the first outlet 21A and the fourth outlet 21D together with the gas. As a result, the difference in the amount of positive ions and negative ions blown out from the first to fourth outlets 21A to 21D becomes smaller, and the unevenness of the amount of ions blown out from each outlet 21 can be improved. When the air guide surface of the first air guide component 31 (i.e., the surface on the side of the wind path 12) is imaginarily extended toward the peak 22A side, the imaginary extension surface of the air guide surface of the first air guide component 31 is preferably in contact with the peak 22A or located at a position lower than the peak 22A. By doing so, the second airflow F2 becomes easy to flow toward the second blow-out port 21B side. Similarly, when the air guide surface of the second air guide component 32 (i.e., the surface on the side of the wind path 12) is imaginarily extended toward the peak 22A side, the imaginary extension surface of the air guide surface of the second air guide component 32 is preferably in contact with the peak 22A or located at a position lower than the peak 22A. By doing so, the fourth airflow F4 is easy to flow toward the first blow-out port 21A side.

[0052] [Effect of hair dryer 1] As described above, the hair dryer 1 according to the present embodiment includes: a second body having an internal space 22 connected to the air passage 12 extending in the first direction 15, and a blow-out port 21 including a first blow-out port 21A located on one side S1 and a second blow-out port 21B located on the other side S2 across an imaginary plane 43 passing through the center of the air passage 12; an ion generating unit 24 disposed in the internal space 22 and including a first electrode 24A located on one side S1 and a second electrode 24B located on the other side S2; and a first air guide member 31 that guides a portion of the gas that flows from the air passage 12 into the internal space 22 and passes through the first electrode 24A toward the second blow-out port 21B.

[0053] In the hair dryer 1, since part of the gas that has passed through the first electrode 24A is guided toward the second outlet 21B by the first air guide member 31, the amount of ions generated by the first electrode 24A contained in the air blown out from the second outlet 21B increases. Therefore, according to the present embodiment, the difference in the amount of ions blown out from the first outlet 21A and the second outlet 21B is reduced, and the non-uniformity of the amount of ions blown out from each outlet can be improved.

[0054] The hair dryer 1 according to the present embodiment further includes a second air guide member 32 that guides a portion of the gas flowing from the air passage 12 into the internal space 22 and passing through the second electrode 24B toward the first outlet 21A.

[0055] In the hair dryer 1, a part of the gas that has passed through the second electrode 24B is guided toward the first outlet 21A by the second air guide member 32, so that the amount of ions generated by the second electrode 24B contained in the air blown out from the first outlet 21A increases. Therefore, according to the present embodiment, the difference in the amount of ions blown out from the first outlet 21A and the second outlet 21B is further reduced, and the non-uniformity of the amount of ions blown out from each outlet can be further improved.

[0056] 〔Summarize〕 The air supply device (hair dryer 1) involved in mode 1 of the present invention comprises: a shell, which has an internal space and a blow-out port, the internal space is connected to an air path extending in a first direction, the blow-out port includes a first blow-out port located on one side and a second blow-out port located on the other side across an imaginary plane passing through the center of the air path and connected to the internal space; an ion generating part (ion generating unit 24), which is arranged in the internal space and includes a first electrode located on the one side and a second electrode located on the other side; and a first air guide component, which flows from the air path into the internal space and guides a part of the gas passing through the first electrode to the second blow-out port side.

[0057] In the structure, since part of the gas passing through the first electrode is guided to the second outlet by the first wind guide member, the amount of ions generated by the first electrode contained in the wind blown out from the second outlet increases. Therefore, according to the structure, the difference in the amount of ions blown out from the first outlet and the second outlet becomes smaller, which can improve the unevenness of the amount of ions blown out from each outlet.

[0058] In the air supply device according to aspect 2, in aspect 1, the first air guide member may be located downstream of the first electrode in the flow direction of the gas from the air passage to the first outlet.

[0059] According to the above configuration, since the first air guide member is located downstream of the first electrode, part of the gas that has passed through the first electrode can be appropriately guided to the second outlet by the first air guide member located downstream of the first electrode.

[0060] In the air supply device according to aspect 3 of the present invention, in aspect 1 or 2, the first electrode and the first air guide member may be arranged in a virtual area, that is, an extended area, formed by extending the air path in the internal space.

[0061] According to the above configuration, the first electrode and the first air guide member are arranged in the region where gas flows from the air passage into the internal space. Therefore, part of the gas that has passed through the first electrode can be easily guided to the second outlet by the first air guide member.

[0062] In the air supply device according to aspect 4 of the present invention, in aspect 3, the first electrode and the first air guide member may be arranged side by side along the first direction.

[0063] According to the above configuration, the first electrode and the first air guide member are arranged in parallel in the direction in which the gas flows from the air passage into the internal space. Therefore, part of the gas passing through the first electrode can be easily guided to the second outlet side through the first air guide member.

[0064] In the air supply device involved in mode 5 of the present invention, in mode 3, the first air guide component may also include a first end on the one side and a second end on the other side, and the second end is arranged at a position farther from the air path than the first end.

[0065] According to the above configuration, since the first air guide member is arranged to be inclined toward the other side, part of the gas that has passed through the first electrode can be easily guided to the second outlet side through the first air guide member.

[0066] In the air supply device according to aspect 6 of the present invention, in any one of aspects 1 to 5, the first air guide member is arranged at a position closer to the air passage than the first air outlet.

[0067] According to the above configuration, before reaching the first outlet from the air passage, part of the gas that has passed through the first electrode can be easily guided to the second outlet side by the first air guide member.

[0068] In the air supply device involved in mode 7 of the present invention, in any one of modes 1 to 6, when the end of the first blow-out outlet located on the air path side in the first direction is set as the air path side end, the position of the first end in the first direction is the same as the air path side end or is closer to the air path than the air path side end.

[0069] According to the above configuration, before reaching the first outlet from the air passage, part of the gas that has passed through the first electrode can be easily guided to the second outlet side by the first air guide member.

[0070] In the air supply device according to aspect 8 of the present invention, in any one of aspects 1 to 7, a second air guide member may be further provided for guiding a portion of the gas passing through the second electrode toward the first outlet.

[0071] In the structure, since part of the gas passing through the second electrode is guided to the first outlet by the second wind guide member, the amount of ions generated by the second electrode contained in the wind blown out from the first outlet increases. Therefore, according to the structure, the difference in the amount of ions blown out from the first outlet and the second outlet becomes smaller, which can improve the unevenness of the amount of ions blown out from each outlet.

[0072] In the air supply device involved in Scheme 9 of the present invention, in any one of Schemes 1 to 8, the shell has a partition wall portion, and the partition wall portion divides the air path and constitutes the downstream side of the air path, and when the direction in which the gas flows from the air path into the internal space in the first direction is defined as the upper side, and the opposite side is defined as the lower side, the first blow-out port is located at a position closer to the one side than the partition wall portion and higher than the partition wall portion, and the second blow-out port is located at a position closer to the other side than the partition wall portion and higher than the partition wall portion.

[0073] According to the above configuration, in the air supply device having the first and second outlets arranged as described above, the difference in the amount of ions blown out from the first and second outlets becomes smaller, and the non-uniformity of the amount of ions blown out from each outlet can be improved.

[0074] In the air supply device involved in mode 10 of the present invention, in mode 9, the blow-out outlet also includes a third blow-out outlet and a fourth blow-out outlet, the third blow-out outlet is located at the lower side of the second blow-out outlet and at the other side of the partition wall portion, and the fourth blow-out outlet is located at the lower side of the first blow-out outlet and at the one side of the partition wall portion.

[0075] According to the above configuration, in the air supply device having the first to fourth outlets arranged as described above, the difference in the amount of ions blown out from the first to fourth outlets becomes small, and the non-uniformity of the amount of ions blown out from each outlet can be improved.

[0076] The present invention is not limited to the above-mentioned embodiments, and various changes can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the embodiments are also included in the technical scope of the present invention. In addition, new technical features can be formed by combining the technical means disclosed in the embodiments.

Claims

1. An air supply device, characterized in that: have: A housing having an internal space and a blow-out port, the internal space being connected to an air passage extending in a first direction, the blow-out port including a first blow-out port located on one side and a second blow-out port located on the other side across an imaginary plane passing through the center of the air passage; an ion generating section disposed in the internal space and comprising a first electrode located on one side and a second electrode located on the other side; The first air guide member guides part of the gas that flows from the air passage into the internal space and passes through the first electrode to the second outlet side.

2. The air supply device according to claim 1, characterized in that: The first air guide member is located on a downstream side of the first electrode in a flow direction of the gas from the air passage to the first blowout port.

3. The air supply device according to claim 1 or 2, characterized in that: The first electrode and the first wind guide member are arranged in an extended region of the internal space as a virtual region formed by extending the wind path.

4. The air supply device according to claim 3, characterized in that: The first electrode and the first wind guide component are arranged along the first direction.

5. The air supply device according to claim 3, characterized in that: The first air guide member includes a first end portion on the one side and a second end portion on the other side, and the second end portion is arranged at a position farther from the air passage than the first end portion.

6. The air supply device according to claim 5, characterized in that: The first air guide member is arranged at a position closer to the air passage than the first air outlet.

7. The air supply device according to claim 6, characterized in that: When the end of the first blowing outlet located on the air path side in the first direction is set as the air path side end, the position of the first end in the first direction is the same as the air path side end or closer to the air path than the air path side end.

8. The air supply device according to claim 1 or 2, characterized in that: A second air guide member is further provided for guiding a part of the gas having passed through the second electrode to the first outlet side.

9. The air supply device according to claim 1 or 2, characterized in that: The housing has a partition wall portion, the partition wall portion partitioning the air passage and constituting a downstream side of the air passage, When the direction in which the gas flows from the air passage into the internal space in the first direction is defined as the upper side and the opposite side is defined as the lower side, the first blow-out port is located closer to the one side than the partition wall and further up than the partition wall. The second air outlet is located closer to the other side than the partition wall portion and further above the partition wall portion.

10. The air supply device according to claim 9, characterized in that: The blowing outlet also includes a third blowing outlet and a fourth blowing outlet, The third outlet is located below the second outlet and on the other side of the partition wall. The fourth outlet is located below the first outlet and on the one side of the partition wall.

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