Ion generator

Abstract

To provide an ion generator high in freedom of installation.SOLUTION: An ion generator includes: an air suction port and an outlet port; a housing having an air channel continuing the suction port and the outlet port; a fan located in the air channel; and an ion generating part generating ion in the air channel. The suction port and the outlet port are separate from each other in a first direction and opens in a second direction crossing the first direction. The fan is located between the suction port and the outlet port in the first direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an ion generating device. [Background technology]

[0002] In an ion generating device according to the related art, the inlet and outlet are provided on different surfaces of a housing. Specifically, the inlet is provided on the front surface of the housing, while the outlet is provided on the top surface of the housing (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-23544 Summary of the Invention [Problem to be solved by the invention]

[0004] If the air inlet and the air outlet are on different sides of the housing, the air inlet and the air outlet must each be spaced apart from multiple wall surfaces. In other words, the background art has a problem in that the degree of freedom in selecting the installation location of the ion generating device is reduced.

[0005] An object of the present disclosure is to provide an ion generating device that allows for a high degree of freedom in installation. [Means for solving the problem]

[0006] An ion generating device according to one aspect of the present disclosure includes a housing, a fan, and an ion generating unit. The housing has an air inlet and outlet, and an air passage connecting the air inlet and the outlet. The fan is located in the air passage. The ion generating unit generates ions in the air passage. The air inlet and the outlet are spaced apart in a first direction and open in a second direction intersecting the first direction. The fan is located between the air inlet and the outlet in the first direction. [Effects of the Invention]

[0007] According to the present disclosure, an ion generating device with a high degree of freedom in installation can be provided. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external perspective view of an ion generating device 100 according to an embodiment. [Figure 2] 2 is a cross-sectional view of ion generating device 100 taken along line II-II in FIG. 1, viewed from the other side of the third direction Z2. [Figure 3] 3 is a cross-sectional view of ion generating device 100 taken along line III-III in FIG. 1, viewed from one side in a third direction Z1. [Figure 4] FIG. 2 is a diagram showing an example of installation of the ion generating device 100 shown in FIG. [Figure 5] 3 is an exploded perspective view showing a first fan 2A, a second fan 2B, and a guide member 4 shown in FIG. 2. FIG. [Figure 6] 2 is a schematic diagram showing airflows A1 and A2 in the ion generating device 100 shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Ion generating devices according to embodiments of the present disclosure will be described below with reference to the drawings. In the drawings, the same or equivalent parts are designated by the same reference numerals, and repeated description will be avoided.

[0010] [First direction X, second direction Y, third direction Z] In the following, to facilitate understanding of the present disclosure, some drawings show a first direction X, a second direction Y, and a third direction Z that intersect with each other. In this disclosure, the term "intersect" means that lines, surfaces, or a line and a surface intersect with each other at a right angle, or that lines, surfaces, or a line and a surface intersect with each other at a non-right angle within a small difference. The small difference is a concept that includes tolerance and error.

[0011] The first direction X consists of one first direction X1 and the other first direction X2. The other first direction X2 is opposite to the one first direction X1. In the present disclosure, the first direction X is the direction from one of the first air inlet 11A and the first air outlet 12A to the other, or the direction from one of the second air inlet 11B and the second air outlet 12B to the other. In particular, the one first direction X1 is the direction from the first air inlet 11A to the first air outlet 12A, or the direction from the second air outlet 12B to the second air inlet 11B, and is an example of the "first direction" in the present disclosure. The other first direction X2 is the direction from the first air outlet 12A to the first air inlet 11A, or the direction from the second air inlet 11B to the second air outlet 12B.

[0012] The second direction Y is made up of one second direction Y1 and the other second direction Y2. The other second direction Y2 is opposite to the one second direction Y1. In this embodiment, the one second direction Y1 is an example of the "second direction" of the present disclosure, and is the direction in which each of the first air inlet 11A, the first air outlet 12A, the second air inlet 11B, and the second air outlet 12B opens toward the outside of the housing 1.

[0013] The third direction Z is made up of one third direction Z1 and the other third direction Z2. The other third direction Z2 is opposite to the one third direction Z1. In this embodiment, the one third direction Z1 is the direction in which the exterior wall 16 is located when viewed from the exterior wall 15.

[0014] [Embodiment] As shown in FIGS. 1 to 5, the ion generating device 100 includes a housing 1, a first fan 2A, and an ion generating unit 3.

[0015] The housing 1 has a first air inlet 11A and a first air outlet 12A. In FIG. 1, the first air inlet 11A and the first air outlet 12A are each shown enclosed by an imaginary dashed-dotted rectangle. As shown in FIGS. 2 and 3, the housing 1 further has a first air passage 13A. The first air passage 13A is indicated by an imaginary dashed-dotted arrow. The first air passage 13A connects the first air inlet 11A and the first air outlet 12A. The first air inlet 11A and the first air outlet 12A are spaced apart from each other in the first direction X. The first air inlet 11A and the first air outlet 12A each open in one direction Y1 of a second direction intersecting the first direction X. The first air inlet 11A, the first air outlet 12A, and the first air passage 13A are examples of the "inlet," "air outlet," and "air passage" of the present disclosure.

[0016] 2 and 3, first fan 2A is located in first air passage 13A. First fan 2A is located between first air inlet 11A and first air outlet 12A in first direction X. First fan 2A is an example of the "fan" or "first fan" of the present disclosure.

[0017] Ion generating unit 3 generates ions in first air passage 13A.

[0018] After ion generating device 100 is installed by user U (see FIG. 4), first fan 2A is operated to generate an airflow in first air passage 13A from first air inlet 11A to first air outlet 12A. At this time, ion generating unit 3 located in first air passage 13A is driven, causing ions to be blown out from first air outlet 12A.

[0019] According to this embodiment, it is possible to provide ion generating device 100 with a high degree of freedom in installation. Specifically, first suction port 11A and first outlet 12A each face in one second direction Y1 (i.e., the same direction). Therefore, as shown in FIG. 4, when installing ion generating device 100, user U simply moves first suction port 11A and first outlet 12A away from the front of user U. This naturally prevents first suction port 11A and first outlet 12A from being blocked by obstacles 200 such as walls. Thus, according to this embodiment, ion generating device 100 can be installed with a higher degree of freedom than in the related art.

[0020] 1 to 3, first air inlet 11A and first air outlet 12A are spaced apart from each other in first direction X, allowing first air passage 13A to extend along first direction X. First fan 2A is located between first air inlet 11A and first air outlet 12A in first direction X. This makes the size of ion generating device 100 in second direction Y relatively small. As a result, as shown in FIG. 4, ion generating device 100 can be easily installed at a position where first air outlet 12A is appropriately spaced from user U. This also increases the degree of freedom in installing ion generating device 100 compared to the related art.

[0021] In the present disclosure, the term "along" means that at least one of the other lines and surfaces extends from one of the reference lines and reference surfaces without being separated from the other.

[0022] 5, the first fan 2A is an axial flow fan having an impeller 21. The impeller 21 rotates around an axis 22 along the first direction X. This increases the air volume from the first air outlet 12A compared to other types of fans.

[0023] As indicated by the dashed-dotted arrows in FIGS. 2 and 3 , first fan 2A generates an airflow in first air passage 13A from first air inlet 11A toward first air outlet 12A. Ion generator 3 has first electrode 31A, which generates ions by discharge, located downstream of first fan 2A in first air passage 13A. This makes it possible to eliminate or reduce obstacles that obstruct the flow of ions between first electrode 31A and first air outlet 12A in first air passage 13A (see FIG. 3 ). As a result, more ions are blown out from first air outlet 12A than when first electrode 31A is located upstream of first fan 2A.

[0024] 2, 3, and 5, ion generating device 100 further includes a guide member 4 within housing 1. Guide member 4 has a first surface 41A that defines a portion of first air passage 13A that is downstream of first fan 2A. First surface 41A curves toward first air outlet 12A as it moves away from first fan 2A in one first direction X1, and reaches downstream end 411A. When first surface 41A is curved, pressure loss is reduced compared to when first surface 41A is bent.

[0025] Downstream end 411A is the end of first surface 41A in first air passage 13A in one side of first direction X1 (see FIG. 3 in particular). Therefore, first air passage 13A does not make a U-turn, preventing short circuiting. That is, air and ions blown out from first air outlet 12A are less likely to be drawn into first air inlet 11A.

[0026] The first air outlet 12A is spaced from the downstream end 411A in the first direction Y1 (see FIG. 3 in particular). That is, a gap G01 between the first air outlet 12A and the downstream end 411A makes it difficult for an airflow containing a component in the other first direction X2 to be blown out from the first air outlet 12A. As a result, short-circuiting is further prevented.

[0027] In the ion generation unit 3, the first electrode 31A is positioned farther from the first outlet 12A than the downstream end 411A (see FIG. 3 in particular), which causes the first electrode 31A to be electrically insulated from other conductors.

[0028] 5, first air passage 13A has first portion 131A and second portion 132A. First portion 131A is a portion downstream of first fan 2A and a portion upstream of second portion 132A. Second portion 132A is a portion between first portion 131A and first air outlet 12A. Cross-sectional area S32 of second portion 132A is smaller than cross-sectional area S31 of first portion 131A. As a result, the amount of air blown out from first air outlet 12A (see FIG. 1) is greater than when cross-sectional area S32 is larger than cross-sectional area S31.

[0029] As shown in FIGS. 1 to 5, the housing 1 further has a second air inlet 11B and a second air outlet 12B. In FIG. 1, the second air inlet 11B and the second air outlet 12B are each shown enclosed by an imaginary dashed-dotted rectangle. The housing 1 further has a second air passage 13B (see particularly FIGS. 2 and 3). In FIGS. 2 and 3, the second air passage 13B is shown by an imaginary dashed-dotted arrow. The second air passage 13B connects the second air inlet 11B and the second air outlet 12B. The second air inlet 11B and the second air outlet 12B are spaced apart from each other in the first direction X. The second air inlet 11B and the second air outlet 12B each open in one direction Y1 of the second direction. Second air inlet 11B, second air outlet 12B, and second air passage 13B are other examples of the "air inlet," "air outlet," and "air passage" of the present disclosure. In addition, hereinafter, first air inlet 11A, first air outlet 12A, second air inlet 11B, and second air outlet 12B may be collectively referred to as the "opening portion."

[0030] Second suction port 11B is adjacent to first suction port 11A in one side of the first direction X1. Specifically, first suction port 11A and second suction port 11B have generally symmetrical shapes in the first direction X with respect to a boundary plane F01 therebetween. Boundary plane F01 is a plane that intersects with the first direction X.

[0031] The first air outlet 12A is located on the other side of the first direction X2 from the boundary surface F01. The second air outlet 12B is located on the one side of the first direction X1 from the boundary surface F01. Specifically, the first air outlet 12A and the second air outlet 12B are generally symmetrical in shape in the first direction X with respect to the boundary surface F01.

[0032] First air passage 13A and second air passage 13B are generally symmetrical to each other in first direction X with boundary surface F01 as the reference.

[0033] Ion generating device 100 further includes second fan 2B. Second fan 2B is located in second air passage 13B. Second fan 2B is located between second air inlet 11B and second air outlet 12B in first direction X. Second fan 2B is an example of the "fan" or "second fan" of the present disclosure.

[0034] Ion generating section 3 has, in addition to first electrode 31A described above, second electrode 31B that generates ions in second air passage 13B.

[0035] After ion generating device 100 is installed by user U (see FIG. 4), first fan 2A is operated to generate an airflow in first air passage 13A from first air inlet 11A to first air outlet 12A. At this time, ion generating unit 3 located in first air passage 13A is driven, causing ions to be blown out from first air outlet 12A. Furthermore, second fan 2B is operated to generate an airflow in second air passage 13B from second air inlet 11B to second air outlet 12B. At this time, ion generating unit 3 is driven, causing ions to be generated from second electrode 31B located in second air passage 13B, and the ions are blown out from first air outlet 12A.

[0036] According to this embodiment, it is possible to provide ion generating device 100 with a high degree of freedom in installation. Specifically, the openings face one side of the second direction Y1 (i.e., the same direction). Therefore, when installing ion generating device 100, user U simply moves the openings away from the front of user U, as shown in FIG. 4. This naturally prevents the openings from being blocked by obstacles 200 such as walls. Thus, according to this embodiment, the degree of freedom in installation of ion generating device 100 is higher than in the background art.

[0037] Furthermore, second air inlet 11B and second air outlet 12B are also spaced apart from each other in first direction X, allowing second air passage 13B to extend in first direction X. Second fan 2B is located between second air inlet 11B and second air outlet 12B in first direction X. This makes the size of ion generating device 100 in second direction Y relatively small. This increases the degree of freedom in installing ion generating device 100 compared to the related art.

[0038] The second fan 2B is an axial flow fan having an impeller 21. The impeller 21 rotates around an axis 22 along the first direction X. This increases the air volume from the second air outlet 12B compared to other types of fans.

[0039] 2 and 3, second fan 2B generates an airflow in second air passage 13B from second air inlet 11B toward second air outlet 12B. Ion generation unit 3 has second electrode 31B, which generates ions by discharge, located downstream of second fan 2B in second air passage 13B. As a result, more ions are blown out from second air outlet 12B than when second electrode 31B is located upstream of second fan 2B.

[0040] 2, 3, and 5, guide member 4 has second surface 41B that defines a portion of second air passage 13B downstream of second fan 2B. Second surface 41B curves toward second air outlet 12B as it moves away from second fan 2B in the other first direction X2, and reaches downstream end 411B. When second surface 41B is curved, pressure loss is reduced compared to when second surface 41B is bent.

[0041] Downstream end 411B is the end of second surface 41B in second air passage 13B on one side of first direction X1. Therefore, second air passage 13B does not make a U-turn, preventing short circuiting. That is, air and ions blown out from second air outlet 12B are less likely to be drawn into second air inlet 11B.

[0042] The second air outlet 12B is spaced apart from the downstream end 411B in the second direction Y1 (see particularly FIG. 3), which further prevents short circuiting.

[0043] In the ion generation unit 3, the second electrode 31B is positioned farther from the second outlet 12B than the downstream end 411B. As a result, the first electrode 31A and the second electrode 31B are electrically insulated from each other by the guide member 4.

[0044] 5, second air passage 13B has first portion 131B and second portion 132B. First portion 131B is a portion downstream of second fan 2B and upstream of second portion 132B. Second portion 132B is a portion between first portion 131B and second air outlet 12B. Cross-sectional area S34 of second portion 132B is smaller than cross-sectional area S33 of first portion 131B. As a result, the amount of air blown out from second air outlet 12B (see FIG. 1) is greater than when cross-sectional area S34 is larger than cross-sectional area S33.

[0045] In the ion generating unit 3, the first electrode 31A and the second electrode 31B generate positive ions and negative ions, respectively, thereby improving the ability to remove bacteria or mold.

[0046] The ion generating device 100 will be described in further detail below with reference to FIGS.

[0047] 1 to 3, the housing 1 has a generally rectangular parallelepiped shape that is elongated in a first direction X. The housing 1 is made of an electrically insulating material. The housing 1 has thin, plate-like outer walls 14 to 19.

[0048] The outer walls 14, 15 have substantially the same shape in a plan view from the third direction Z, and are substantially rectangular in shape extending in the first direction X and the second direction Y. The outer walls 14, 15 are spaced apart from each other in the third direction Z.

[0049] The outer wall 16 has a generally rectangular shape extending in the first direction X and the third direction Z between the ends of the outer walls 14, 15 on the one side in the second direction Y1. The outer wall 17 has a generally rectangular shape extending in the first direction X and the third direction Z between the ends of the outer walls 14, 15 on the other side in the second direction Y2.

[0050] The outer wall 18 has a generally rectangular shape extending in the second direction Y and the third direction Z between the ends of the outer walls 14 to 17 on the one side in the first direction X1. The outer wall 19 has a generally rectangular shape extending in the second direction Y and the third direction Z between the ends of the outer walls 14 to 17 on the other side in the first direction X2.

[0051] The first air inlet 11A, the first air outlet 12A, the second air inlet 11B, and the second air outlet 12B (i.e., openings) are formed in the outer wall 16. A lattice-like partition is provided at the openings to prevent a user U (see FIG. 4) from inserting his or her fingers or the like into the openings.

[0052] No openings are formed in outer walls 17 to 19. Therefore, ion generating device 100 can be installed by placing any of outer walls 17 to 19 against a wall or the like.

[0053] 5, the first fan 2A and the second fan 2B are axial fans with the same specifications. The first fan 2A and the second fan 2B may be fans of a type other than an axial fan. By making the first fan 2A and the second fan 2B have the same specifications, the manufacturing cost of the ion generating device 100 can be reduced.

[0054] Specifically, each of the first fan 2A and the second fan 2B has, in addition to the impeller 21, a fan housing 23 and a motor (not shown).

[0055] The outer shape of the fan housing 23 is roughly a rectangular parallelepiped. In the present disclosure, the corners of the rectangular parallelepiped are chamfered. The fan housing 23 has an air inlet 24 and an air outlet 25. The inlet 24 and the air outlet 25 intersect with an axis 22. An impeller 21 and a motor are attached to the fan housing 23. In the first fan 2A and the second fan 2B, the impeller 21 rotates by power generated by the motor. As a result, air is taken into the fan housing 23 through the inlet 24 and blown out through the air outlet 25.

[0056] First fan 2A is installed in first air passage 13A so as to satisfy the following conditions (a) to (d). Condition (a) is that axis 22 is along first direction X (see FIG. 3). Condition (b) is that inlet 24 is located upstream of outlet 25 in first air passage 13A. Condition (c) is that outlet 25 is located on one side of the second direction Y1 of upstream end 412A of first surface 41A. Condition (d) is that outlet 25 is spaced apart in the other side of the first direction X2 from first electrode 31A and downstream end 411A of first surface 41A.

[0057] In second air passage 13B, second fan 2B is disposed generally symmetrically to first fan 2A in first direction X with boundary plane F01 as the reference.

[0058] The ion generating unit 3 has a generally rectangular parallelepiped plate shape that is thin in the third direction Z. The ion generating unit 3 is disposed generally symmetrically with respect to a boundary surface F01 within the housing 1. In detail, as shown in FIGS. 2 and 3 , an end face 32 of the ion generating unit 3 on one side Y1 in the second direction is spaced apart in the other side Y2 in the second direction from the outer wall 16, the first outlet 12A, and the second outlet 12B.

[0059] Each of the first electrode 31A and the second electrode 31B protrudes upward from an end surface 33 of the ion generation unit 3 on one side in the third direction Z1. Each of the first electrode 31A and the second electrode 31B has a thin needle shape. The first electrode 31A and the second electrode 31B are positioned apart in the first direction X. A first surface 41A and a second surface 41B of the guide member 4 are positioned between the first electrode 31A and the second electrode 31B in the first direction X. The guide member 4 is made of an electrically insulating material (e.g., resin). Therefore, the first electrode 31A and the second electrode 31B are electrically insulated from each other.

[0060] More specifically, the first surface 41A extends along the first direction X between an upstream end 412A and an intermediate position 413A (see FIG. 3) between the upstream end 412A and the downstream end 411A. Between the intermediate position 413A and the downstream end 411A, the first surface 41A curves so as to approach the first air outlet 12A as it moves away from the first fan 2A in one first direction X1. More specifically, the first surface 41A has no irregularities between the intermediate position 413A and the downstream end 411A, and bulges in one first direction X1 and the other second direction Y2 between the intermediate position 413A and the downstream end 411A.

[0061] As described above, the second surface 41B has a shape that is approximately symmetrical to the first surface 41A in the first direction X with respect to the boundary surface F01. In detail, the second surface 41B extends along the first direction X between the upstream end 412B and an intermediate position 413B (see FIG. 3) between the upstream end 412B and the downstream end 411B. Between the intermediate position 413B and the downstream end 411B, the second surface 41B curves so as to approach the second air outlet 12B as it moves away from the second fan 2B in the other first direction X2.

[0062] According to the present disclosure, when the first fan 2A, the second fan 2B, and the ion generation unit 3 are driven, an airflow A1 is generated in the first air passage 13A along the first surface 41A, as shown in Fig. 6. The airflow A1 includes a component A11 in the second direction Y1 as well as a component A12 in the first direction X1. Therefore, a portion of the airflow A1 spreads in the first direction X1 on the second direction Y1 side of the downstream end 411A of the first surface 41A.

[0063] Similarly, in second air passage 13B, airflow A2 is generated along second surface 41B. Part of airflow A2 spreads in the other first direction X2 on the one second direction Y1 side of downstream end 411B of second surface 41B.

[0064] On the second direction Y1 side of the downstream ends 411A and 411B, the component A12 of the airflow A1 in the first direction X1 and the component A22 of the airflow A2 in the second direction X2 cancel each other out. Therefore, on the second direction Y1 side of the downstream ends 411A and 411B, the components A12 and A22 in the first direction X of the airflows A1 and A2 decrease, and the components A11 and A21 in the second direction Y1 become dominant. That is, the guide member 4 causes ions to be blown out from the first outlet 12A and the second outlet 12B of the ion generating device 100 in a generally straight line in the second direction Y1. Therefore, with the ion generating device 100, a relatively large number of ions hits the user U (see FIG. 4 ).

[0065] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the present disclosure, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual configuration due to the convenience of creating the drawings. Furthermore, the configuration of each component shown in each of the above embodiments is merely an example and is not particularly limited, and it goes without saying that various modifications are possible within a scope that does not substantially deviate from the effects of the present disclosure.

[0066] (1) In the present disclosure, the airflow generated by first fan 2A is blown out from first air outlet 12A, and the airflow generated by second fan 2B is blown out from second air outlet 12B. However, this is not limiting, and an air path may be formed in housing 1 so that airflows generated by one fan are blown out from both first air outlet 12A and second air outlet 12B.

[0067] (2) In the present disclosure, the first fan 2A and the second fan 2B have the same specifications. However, this is not limiting, and the first fan 2A and the second fan 2B may have different specifications. [Industrial Applicability]

[0068] The ion generating device according to the present disclosure has industrial applicability. [Explanation of symbols]

[0069] 100: Ion generator 1: Housing 11A: First intake port (intake port) 12A: Second air outlet (inlet) 11B: First air outlet (air outlet) 12B:Second air outlet (air outlet) 13A: First wind path (wind path) 131A:First part S31: Cross-sectional area 132A:Second part S32: Cross-sectional area 13B:Second wind path (wind path) 131B:First part S33: Cross-sectional area 132B:Second part S34: Cross-sectional area 2A: First Fan (Fan) 2B: Second Fan (Fan) 21: Impeller 22: Axis 3: Ion generating unit 31A: First electrode (electrode) 31B: Second electrode (electrode) 4: Guide member 41A: Front page 411A: Downstream end 41B:Second side 411B: Downstream end X1: One direction (first direction) Y1: Second direction one side (second direction)

Claims

1. a housing having an air inlet and an air outlet, and an air passage connecting the air inlet and the air outlet; a fan located in the air passage; an ion generating unit that generates ions in the air passage; Equipped with the air inlet and the air outlet are spaced apart from each other in a first direction and open in a second direction intersecting the first direction, The ion generating device, wherein the fan is located between the air inlet and the air outlet in the first direction.

2. The ion generating device according to claim 1 , wherein the fan is an axial flow fan having an impeller that rotates around an axis along the first direction.

3. The fan generates an airflow in the air passage from the air inlet toward the air outlet, The ion generating device according to claim 1 , wherein the ion generating section has an electrode that generates the ions by discharge, the electrode being located downstream of the fan in the air passage.

4. a guide member having a surface that defines a portion of the air passage downstream of the fan, the first direction is a direction from the air inlet to the air outlet, The ion generating device according to claim 1 or 2, wherein the surface curves toward the outlet port as it moves away from the fan in the first direction, and reaches the downstream end.

5. The ion generating device according to claim 4 , wherein the downstream end is an end of the air passage in the first direction.

6. The ion generating device according to claim 4 , wherein the outlet is spaced apart from the downstream end in the second direction.

7. The ion generating device according to claim 4 , wherein the ion generating section has an electrode that generates the ions by discharge, at a position farther from the outlet than the downstream end.

8. The air passage is a first portion downstream of the fan; a second portion between the first portion and the air outlet; and The ion generating device according to claim 1 , wherein a cross-sectional area of ​​the second portion is smaller than a cross-sectional area of ​​the first portion.

9. a first air intake port, a second air intake port, a first air outlet, and a second air outlet, a first air passage connecting the first air intake port and the first air outlet, and a second air passage connecting the second air intake port and the second air outlet; a housing having a first fan located in the first air passage; a second fan located in the second air passage; an ion generating unit including a first electrode in the first air passage that generates ions by discharge, and a second electrode in the second air passage that generates ions by discharge; Equipped with the first air inlet and the first air outlet are spaced apart in a first direction and open in a second direction intersecting the first direction, the second air inlet and the second air outlet are spaced apart in the first direction and open toward the second direction, the first fan is located between the first air inlet and the first air outlet in the first direction, The second fan is located between the second air inlet and the second air outlet in the first direction.

10. The ion generating device according to claim 9 , wherein the first electrode and the second electrode generate positive ions and negative ions, respectively.

11. a guide member having a first surface that defines a portion of the first air passage downstream of the first fan and a second surface that defines a portion of the second air passage downstream of the second fan, the first surface curves in a direction from the first air inlet toward the first air outlet so as to approach the first air outlet as the first surface moves away from the first fan, and reaches a downstream end, the second surface curves in a direction from the second air inlet toward the second air outlet so as to approach the second air outlet as the second surface moves away from the second fan, and reaches a downstream end, The downstream end of the first surface and the first air outlet are spaced apart from each other in the second direction, The ion generating device according to claim 9 or 10, wherein the downstream end of the second surface and the second outlet are spaced apart from each other in the second direction.

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