Garment fan device and garment with fan

Abstract

To provide a technology that can increase wind pressure of a garment fan device.SOLUTION: A garment fan device to be fitted to a garment includes: a fan, a connector, a housing for storing the fan and the connector and a waterproof member. The waterproof member can block a first insertion port which is provided in the garment fan device and into which a mating connector to be connected to the connector is inserted. The housing includes a storage part capable of storing at least part of the waterproof member.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a clothing fan device. [Background technology]

[0002] Patent Document 1 describes a technique relating to a fan device for clothing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2007 / 061088 Summary of the Invention [Problem to be solved by the invention]

[0004] The convenience of clothing fan devices leaves room for improvement. [Means for solving the problem]

[0005] A clothing fan device and fan-equipped clothing are disclosed. In one embodiment, the clothing fan device is attached to the clothing and includes a fan, a connector, a housing that houses the fan and connector, and a waterproof member. The waterproof member can cover a first insertion opening provided on the clothing fan device through which a mating connector that connects to the connector is inserted. The housing has a storage section that can store at least a portion of the waterproof member.

[0006] In one embodiment, a fan-equipped garment comprises a garment and the above-described garment fan device attached to the garment. [Effects of the Invention]

[0007] The convenience of the clothing fan device can be improved. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram showing an example of a fan-equipped garment. [Figure 2] FIG. 1 is a schematic diagram showing an example of clothing. [Figure 3] FIG. 2 is a schematic diagram illustrating an example of a battery device and a cable. [Figure 4] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 5] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 6] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 7] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 8] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 9] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 10] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 11] FIG. 2 is a schematic diagram illustrating an example of a waterproof member. [Figure 12] FIG. 2 is a schematic diagram illustrating an example of a waterproof member. [Figure 13] FIG. 2 is a schematic view showing an example of a lid member. [Figure 14] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 15] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 16] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 17] 10 is a schematic diagram showing an example of how the waterproof member is fitted into the cover member. FIG. [Figure 18] 10A and 10B are schematic diagrams showing an example of how the waterproofing member is fitted into the connector. [Figure 19] 5A and 5B are schematic diagrams illustrating an example of a cover member and an elastic member. [Figure 20] 5A and 5B are schematic diagrams illustrating an example of a cover member and an elastic member. [Figure 21] FIG. 4 is a schematic diagram illustrating an example of an elastic member. [Figure 22] FIG. 4 is a schematic diagram illustrating an example of an elastic member. [Figure 23] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 24] 10 is a schematic view showing an example of a state in which a first seal portion abuts on a motor housing portion. FIG. [Figure 25] 1 is a schematic diagram showing an example of a clothing fan device. [Figure 26] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 27] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 28] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 29] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 30] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 31] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 32] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 33] FIG. 2 is a schematic diagram showing an example of the shape of the leading edge of a blade. [Figure 34] FIG. 2 is a schematic diagram showing an example of the shape of the leading edge of a blade. [Figure 35] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 36] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 37] 10 is a graph showing an example of the relationship between the airflow rate and efficiency of a fan. [Figure 38] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 39] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 40] 10 is a graph showing an example of the relationship between the airflow rate and efficiency of a fan. [Figure 41] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 42] FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 43] 10 is a graph showing an example of the relationship between the airflow rate and efficiency of a fan. [Figure 44]FIG. 2 is a schematic diagram illustrating an example of a fan. [Figure 45] 10 is a graph showing an example of the relationship between the airflow rate and efficiency of a fan. [Figure 46] FIG. 4 is a schematic view showing an example of a cross-sectional structure of a rear portion of the housing. [Figure 47] FIG. 4 is a schematic view showing an example of a cross-sectional structure of a rear portion of the housing. [Figure 48] FIG. 4 is a schematic view showing an example of a cross-sectional structure of a rear portion of the housing. [Figure 49] FIG. 4 is a schematic view showing an example of a cross-sectional structure of a rear portion of the housing. [Figure 50] FIG. 10 is a schematic diagram showing an example of wind velocity vectors around radial ribs. [Figure 51] FIG. 10 is a schematic diagram showing an example of wind velocity vectors around radial ribs. [Figure 52] FIG. 10 is a schematic diagram showing an example of wind velocity vectors around radial ribs. [Figure 53] FIG. 10 is a schematic diagram showing an example of wind velocity vectors around radial ribs. [Figure 54] FIG. 10 is a schematic diagram showing an example of wind velocity vectors around radial ribs. [Figure 55] FIG. 2 is a schematic diagram showing an example of a rear portion of a housing. [Figure 56] FIG. 2 is a schematic diagram showing an example of a rear portion of a housing. [Figure 57] FIG. 10 is a schematic diagram showing an example of a rear portion of a housing having a comparative rib structure. [Figure 58] FIG. 10 is a schematic diagram showing an example of a rear portion of a housing having a comparative rib structure. DETAILED DESCRIPTION OF THE INVENTION

[0009] Fig. 1 is a schematic diagram showing an example of a fan-equipped garment 1. As shown in Fig. 1, the fan-equipped garment 1 includes, for example, a garment 2 and a clothing fan device 10 (also referred to as a clothing fan 10) attached to the garment 2. Fig. 2 is a schematic diagram showing an example of the garment 2. Figs. 1 and 2 show the back side of the garment 2.

[0010] As shown in FIG. 1, the clothing fan device 10 is attached to, for example, the lower part of the back surface 3 of the clothing 2. As shown in FIG. 2, a mounting hole 4 is provided in the lower part of the back surface 3 of the clothing 2 for attaching the clothing fan device 10 to the clothing 2. The clothing fan device 10 is attached to the mounting hole 4. In this example, two mounting holes 4 are provided side by side on the left and right sides of the back surface 3 of the clothing 2. A clothing fan device 10 is attached to each mounting hole 4. As will be described later, the clothing fan device 10 is attached to the clothing 2 so that the peripheral portion 5 of the mounting hole 4 is sandwiched between them. Hereinafter, the clothing fan device 10 may be simply referred to as the fan device 10.

[0011] The fan unit 10 takes in air from one side and exhausts the taken-in air from the other side. The fan unit 10 is attached to the garment 2 so that the side that takes in air (i.e., the intake side) is located on the outside of the garment 2 and the side that exhausts air (i.e., the exhaust side) is located on the inside of the garment 2. In the fan-equipped garment 1, each fan unit 10 takes in air from the outside to the inside of the garment 2 through the mounting holes 4 while rotating. The air taken into the inside of the garment 2 circulates within the garment 2 as each fan unit 10 rotates and is exhausted to the outside of the garment 2 from the neckline or the like of the garment 2. This cools the body of the person wearing the fan-equipped garment 1, i.e., the user. The mounting holes 4 of the garment 2 serve as intake ports for the cooled air, and the neckline or the like of the garment 2 serves as an exhaust port for the cooled air.

[0012] The fan device 10 operates based on power (in other words, power supply) supplied from the battery device 6. As shown in FIG. 3 , a cable 7 is connected to the battery device 6. For example, the cable 7 extends from the battery device 6 and is bifurcated into two branch lines 7a. Two connectors 7b are provided at the ends of the two branch lines 7a. For example, each connector 7b has a terminal portion 7bb that fits and engages with a connector provided on the fan device 10. The two connectors 7b of the cable 7 are connected to the two fan devices 10, respectively, thereby electrically connecting each fan device 10 to the battery device 6. The battery device 6 is housed, for example, in a pocket of the clothing 2. Each fan device 10 rotates based on power supplied from the battery device 6 through the cable 7.

[0013] The airflow rate of the fan device 10 is variable, for example. For example, an operation button for changing the airflow rate of the fan device 10 is provided on the battery device 6. When the operation button is operated, the power supplied from the battery device 6 to the fan device 10 changes, and the airflow rate of the fan device 10 changes.

[0014] The number of fan devices 10 attached to the clothing 2 may be one, or three or more. The attachment positions of the fan devices 10 relative to the clothing 2 are not limited to those shown in FIGS. 1 and 2. In the above example, the clothing 2 to which the fan devices 10 are attached is a jacket, but it may be clothing other than a jacket. For example, the clothing 2 may be pants. In this case, the fan devices 10 may be attached to the side of the pants, for example. The airflow rate of the fan devices 10 may not be adjustable. Hereinafter, the structure of the fan device 10 will be described, with the side from which the fan device 10 takes in air being referred to as the front side and the side from which the fan device 10 expels air being referred to as the rear side.

[0015] <Example of fan device structure> 4 to 6 are schematic diagrams showing an example of the structure of the fan device 10. FIG. 4 shows a plan view of the fan device 10 from the front. FIG. 5 shows a plan view of the fan device 10 from the rear. FIG. 6 shows an enlarged view of the fan device 10 as seen diagonally from the rear. Hereinafter, for convenience in describing the structure of the fan device 10, the upper side of FIGS. 4 and 5 will be referred to as the upper side of the fan device 10, and the lower side of FIGS. 4 and 5 will be referred to as the lower side of the fan device 10. Furthermore, the left-right direction of FIGS. 4 and 5 will be referred to as the left-right direction of the fan device 10. Furthermore, the left side of FIG. 5 will be referred to as the left side of the fan device 10, and the right side of FIG. 5 will be referred to as the right side of the fan device 10.

[0016] 4 to 6, the fan unit 10 includes, for example, a main body 11 and a fixing member 100 for fixing the main body 11 to clothing 2. The main body 11 includes, for example, a housing 12, a fan 13, a motor 14, a connector 15, a first waterproofing member 16, a second waterproofing member 17, wiring 19, and an elastic member 18 (described below). The housing 12 includes, for example, a housing main body 20 and a lid member 80. The fan 13, the motor 14, the connector 15, the second waterproofing member 17, the elastic member 18, and the wiring 19 are housed in the housing main body 20. FIG. 7 is a schematic diagram showing an example of a plan view of the fan unit 10 from the rear side with the lid member 80, the first waterproofing member 16, and the elastic member 18 removed.

[0017] The housing main body 20 has an accommodating section 70 that accommodates the motor 14, the connector 15, and the wiring 19. As shown in FIG. 7, the accommodating section 70 has an opening 700 that opens into the surface of the housing main body 20. The opening 700 has, for example, a keyhole shape. A lid member 80 covers the opening 700 of the accommodating section 70. The lid member 80 is attached to the housing main body 20 from the rear side. The lid member 80 is fixed to the housing main body 20 with, for example, two screws 900.

[0018] The fixing member 100 is a member for fixing the housing main body 20 to the clothing 2. The fixing member 100 is, for example, detachable from the housing main body 20. Fig. 8 is a schematic diagram showing an example of the fixing member 100 being detached from the housing main body 20.

[0019] The fan 13 is rotated by a motor 14. The motor 14 is, for example, a DC motor. The power output from the battery device 6 is supplied to a connector 15. The power supplied to the connector 15 is then supplied to the motor 14. The motor 14 rotates the fan 13 based on the power from the battery device 6. A connector 7b of a cable 7 extending from the battery device 6 is connected to the connector 15. Hereinafter, the connector 7b may be referred to as a mating connector 7b.

[0020] The connector 15 is, for example, a jack connector. The mating connector 7b is, for example, a plug connector. A terminal portion 7bb of the mating connector 7b is fitted and locked into the connector 15. The connector 15 has an insertion opening 150 into which the terminal portion 7bb is inserted. The insertion opening 150 faces, for example, downward. The terminal portion 7bb is inserted into the connector 15 from the insertion opening 150 and fitted into the connector 15. The terminal portion 7bb is inserted into the connector 15 from the bottom.

[0021] The connector 15 is electrically connected to the motor 14. As shown in FIG. 7 , the connector 15 includes, for example, two connection terminals 151. The two connection terminals 151 are electrically connected to the motor 14 by a wiring 19. The wiring 19 includes, for example, two lead wires 190 and a connector 191 to which the two lead wires 190 are connected. Ends of the two lead wires 190 opposite the connector 191 side are, for example, soldered to the two connection terminals 151 of the connector 15. The motor 14 has a connector 140 to which the connector 191 of the wiring 19 is connected. Power supplied from the battery device 6 through the cable 7 to the connector 15 is supplied to the connector 140 of the motor 14 through the wiring 19. The motor 14 rotates based on the power supplied to the connector 140, and the fan 13 rotates in response to the rotation of the motor 14.

[0022] The housing main body 20 has an insertion opening 45 into which the mating connector 7b is inserted. After the terminal portion 7bb of the mating connector 7b is inserted into the insertion opening 45, it is inserted into the insertion opening 150 of the connector 15 inside the housing main body 20. Hereinafter, the insertion opening 45 may be referred to as the housing-side insertion opening 45, and the insertion opening 150 may be referred to as the connector-side insertion opening 150.

[0023] The first waterproofing member 16 (also simply referred to as the waterproofing member 16) is a member that makes it difficult for water to enter through the housing-side insertion opening 45 when the mating connector 7b is not connected to the connector 15. By making it difficult for water to enter through the housing-side insertion opening 45, it becomes difficult for water to enter through the connector-side insertion opening 150. Therefore, it can be said that the waterproofing member 16 is a member that makes it difficult for water to enter through the connector-side insertion opening 150.

[0024] The waterproof member 16 can, for example, block the housing-side insertion opening 45. Furthermore, if the waterproof member 16 does not block the housing-side insertion opening 45, the waterproof member 16 can, for example, be partially housed in the housing 12. Figures 5 and 6 show an example of how the waterproof member 16 is housed in the housing 12. The waterproof member 16 is, for example, housed in a cover member 80 of the housing 12. One end of the waterproof member 16 is, for example, connected to the housing 12. The waterproof member 16 will be described in detail later.

[0025] The second waterproofing member 17 (also simply referred to as the waterproofing member 17) is a member that makes it difficult for water to enter the connection portion between the connector 15 and the mating connector 7b. The waterproofing member 17 is, for example, a ring-shaped member. The waterproofing member 17 is, for example, an elastic member made of an elastic material such as rubber or elastomer. The waterproofing member 17 is, for example, an O-ring. The waterproofing member 17 is located below the connector 15.

[0026] As shown in FIG. 7 , the annular waterproofing member 17 is disposed in the housing 70 so that its central hole 17a faces the connector-side insertion opening 150. The waterproofing member 17 is disposed so as to contact the periphery of the insertion opening 150 in the connector 15. The inner diameter of the waterproofing member 17, in other words, the diameter of the central hole 17a of the waterproofing member 17, is smaller than the diameter of the connector-side insertion opening 150. When the terminal portion 7bb of the mating connector 7b is inserted into the connector-side insertion opening 150, the terminal portion 7bb is inserted into the hole 17a of the waterproofing member 17. At this time, the terminal portion 7bb is inserted into the hole 17a while widening the diameter of the hole 17a. The terminal portion 7bb is then inserted into the connector-side insertion opening 150 and fitted into the connector 15. When the terminal portion 7bb is fitted and locked into the connector 15, the outer periphery of the portion of the terminal portion 7bb that is exposed from the connector 15 is surrounded by the annular waterproofing member 17. The terminal portion 7bb is inserted into the hole 17a of the waterproofing member 17 while widening the diameter of the hole 17a, so that the inside of the waterproofing member 17 adheres liquid-tightly to the outer periphery of the terminal portion 7bb. This makes it difficult for water entering from below the waterproofing member 17 to pass over the waterproofing member 17 and enter the connector 15 side. This makes it difficult for water to enter the connection between the connector 15 and the mating connector 7b. As a result, for example, poor connection between the connector 15 and the mating connector 7b is less likely to occur.

[0027] The housing main body 20 is made of, for example, resin. The outer shape of the housing main body 20 is, for example, approximately circular when viewed from both the front and rear sides. The housing main body 20 includes, for example, a front surface portion 30, a rear surface portion (also referred to as a back surface portion) 40, and a cylindrical peripheral wall portion (also referred to as a side wall portion) 50 that connects the front surface portion 30 and the rear surface portion 40 to each other. The outer shape of the front surface portion 30 is approximately circular when viewed from the front side. The outer shape of the rear surface portion 40 is approximately circular when viewed from the rear side. The peripheral wall portion 50 is, for example, cylindrical, and connects the periphery of the front surface portion 30 and the periphery of the rear surface portion 40.

[0028] As shown in FIG. 4 , the front surface portion 30 has an annular flange portion 31 at its peripheral edge. The front surface portion 30 also has, inside the annular flange portion 31, a plurality of air intake ports 32 and a rib structure 33 that defines the plurality of air intake ports 32. When viewed from the intake side, a central portion 38 of the front surface portion 30 is a closed area in which no air intake ports 32 are provided. The outer shape of the central portion 38 is, for example, circular. In the front surface portion 30, the plurality of air intake ports 32 and the rib structure 33 that defines the plurality of air intake ports 32 constitute an intake portion 300 that draws air from outside the housing 12 into the housing 12 when the fan 13 rotates.

[0029] The flange portion 31 protrudes radially from the peripheral wall portion 50 of the front surface portion 30. The rib structure 33 includes, for example, a plurality of radial ribs 34 extending radially from a central portion 38 along the radial direction of the front surface portion 30, and a plurality of circular circumferential ribs 35 extending along the circumferential direction of the front surface portion 30. The plurality of radial ribs 34 extend radially in a plan view from the front side.

[0030] The multiple radial ribs 34 extend linearly, for example, from the outer peripheral edge of the central portion 38 to the inner peripheral edge of the flange portion 31. The multiple circumferential ribs 35 are arranged concentrically to surround the central portion 38. Each circumferential rib 35 is arranged to connect the multiple radial ribs 34. Each radial rib 34 extends to cross the multiple circumferential ribs 35. The rib structure 33 includes, for example, eight radial ribs 34 and three circumferential ribs 35.

[0031] The configuration of the rib structure 33 is not limited to the above example. For example, the number of radial ribs 34 may be other than eight. Also, the number of circumferential ribs 35 may be other than three.

[0032] As shown in FIG. 8 , a male thread portion 51 that screws into a female thread portion 105 (described below) of the fixing member 100 is formed on the outer peripheral surface of the front portion of the peripheral wall portion 50. A housing rear portion 60 made up of a rear portion of the peripheral wall portion 50 and a rear surface portion 40 connected to the rear portion is provided with a plurality of exhaust ports 61 and a rib structure 62 that defines the plurality of exhaust ports 61. The plurality of exhaust ports 61 are provided avoiding the central portion of the rear surface portion 40 and the portion below it. In the housing rear portion 60 (also simply referred to as the rear portion 60), the plurality of exhaust ports 61 and the rib structure 62 that defines the plurality of exhaust ports 61 form an exhaust section 600 that exhausts air inside the housing 12 to the outside of the housing 12.

[0033] The rear surface portion 40 has a central portion and a portion below it that are recessed toward the front, and a storage portion 70 is formed in the central portion and the portion below it. The storage portion 70 is a recess that opens into the rear surface of the housing main body 20 and can also be referred to as a storage recess 70. As shown in FIG. 7 , the rear surface portion 40 has two fixing portion storage portions 79 formed around the periphery of the storage portion 70, each of which accommodates two fixing portions 88 (described below) of the cover member 80. The fixing portion storage portions 79 are recesses that open into the rear surface of the housing main body 20 and can also be referred to as fixing portion storage recesses 79. The two fixing portion storage portions 79 are disposed opposite each other with the center of the rear surface portion 40 sandwiched between them, for example, in a plan view from the rear. One fixing portion storage portion 79 is located, for example, at the upper right of the storage portion 70, and the other fixing portion storage portion 79 is located, for example, at the lower left of the storage portion 70. The inner space of each fixing portion storage recess 79 is connected to the inner space of the storage portion 70.

[0034] The rib structure 62 includes, for example, a plurality of circumferential ribs 63 provided on the rear surface portion 40 that extend along the circumferential direction of the rear surface portion 40. The plurality of circumferential ribs 63 are concentrically arranged so as to surround the central portion of the rear surface portion 40. The plurality of circumferential ribs 63 are, for example, generally circular. The rib structure 62 includes, for example, two circumferential ribs 63. Each of the two circumferential ribs 63 is, for example, in the shape of a circle with a broken portion (in other words, an arc).

[0035] The rib structure 62 includes a plurality of radial ribs 64 extending radially from the central portion of the rear surface portion 40. The plurality of radial ribs 64 are provided on the rear surface portion 40. The plurality of radial ribs 64 are provided on the rear surface portion 40, for example, avoiding the lower side of the central portion. Of the plurality of radial ribs 64, one radial rib 64 extends from the upper right fixing portion accommodating portion 79, and the remaining plurality of radial ribs 64 extend radially from the accommodating portion 70. The plurality of circumferential ribs 63 are arranged to connect the plurality of radial ribs 64. The plurality of radial ribs 64 extend from the central portion of the rear surface portion 40 and reach the outer circumferential rib 63.

[0036] The rib structure 62 has, for example, eleven radial ribs 64. In Fig. 5, the eleven radial ribs 64 are arranged at eleven positions from the 1 o'clock position to the 5 o'clock position and from the 7 o'clock position to the 12 o'clock position, respectively, and no radial rib 64 is arranged at the 6 o'clock position.

[0037] One end of the inner circumferential rib 63 is connected to the accommodating portion 70, and the other end of the inner circumferential rib 63 is not connected to the accommodating portion 70. The inner circumferential rib 63 is disposed between the accommodating portion 70 and the radial rib 64 at the 5 o'clock position, but is not disposed between the accommodating portion 70 and the radial rib 64 at the 7 o'clock position. A connection portion 165 (described below) of the waterproof member 16 and a connection portion 90 (described below) of the housing main body 20 that is connected to the connection portion 165 are disposed between the accommodating portion 70 and the radial rib 64 at the 7 o'clock position. In a plan view from the rear side, the inner circumferential rib 63 first extends from the right side of the accommodating portion 70 to the radial rib 64 at the 5 o'clock position, and then extends clockwise to the radial rib 64 at the 7 o'clock position.

[0038] The rib structure 62 includes a rib 65 having an opening 65a (see FIG. 6 in particular) with an inverted U-shaped outer shape. The terminal 7bb of the mating connector 7b is inserted into the opening 65a (also referred to as the rib opening 65a). The rib 65 is provided on the rear surface 40. The rib 65 is located below the accommodating portion 70 and is connected to the accommodating portion 70. The rib 65 extends in the left-right direction and is connected to both ends of the arc-shaped outer circumferential rib 63. In a plan view from the rear, the outer circumferential rib 63 first extends from the right end of the rib 65 to the radial rib 64 at the 5 o'clock position, then extends clockwise to the radial rib 64 at the 7 o'clock position, and further extends to the left end of the rib 65. The opening 65a faces downward, for example.

[0039] As shown in FIG. 6 , the lower end of the accommodating portion 70 is provided with a U-shaped opening 71, through which the terminal portion 7bb of the mating connector 7b is inserted. The opening 71 faces downward, for example. The terminal portion 7bb is inserted into the accommodating portion 70 through the opening 71, then passes through a hole 17a in the waterproofing member 17 inside the accommodating portion 70, and is inserted into the connector 15 through a connector-side insertion port 150 inside the accommodating portion 70. The opening 71 is located above the opening 65a of the rib 65 and is connected to the opening 65a. Hereinafter, the opening 71 may be referred to as the accommodating portion opening 71.

[0040] As shown in FIG. 6, the lid member 80 is disposed within the accommodating portion 70 and includes a facing portion 81 facing the accommodating portion opening 71. The facing portion 81 is located above the accommodating portion opening 71. The facing portion 81 has a cylindrical opening 81a (also referred to as a lid opening 81a) through which the terminal portion 7bb of the mating connector 7b is inserted. The opening 81a faces the accommodating portion opening 71 and is located inside the accommodating portion opening 71 when viewed from below. The lid member 80 will be described in detail later.

[0041] The rib opening 65a, the accommodating portion opening 71, and the lid opening 81a constitute the housing-side insertion opening 45 into which the mating connector 7b is inserted. The rib opening 65a, the accommodating portion opening 71, the lid opening 81a, the central hole 17a of the waterproofing member 17, and the connector-side insertion opening 150 are aligned in this order from the bottom up along the vertical direction. When the terminal portion 7bb of the mating connector 7b is inserted into the connector 15, the terminal portion 7bb is first inserted through the rib opening 65a and then inserted into the accommodating portion 70 through the accommodating portion opening 71. After being inserted through the lid opening 81a, the terminal portion 7bb passes through the hole 17a of the waterproofing member 17 and then inserted into the connector 15 through the connector-side insertion opening 150 in the accommodating portion 70.

[0042] The housing-side insertion opening 45 faces downward, and the terminal portion 7bb of the mating connector 7b is inserted from below into the housing-side insertion opening 45. The terminal portion 7bb inserted into the housing-side insertion opening 45 passes through the hole 17a of the waterproofing member 17 and is then inserted into the connector 15 from the connector-side insertion opening 150.

[0043] The rib structure 62 includes a plurality of ribs 66 extending from an outer circumferential rib 63 to a front portion of the peripheral wall portion 50. In a plan view from the rear side, the plurality of ribs 66 extend radially from the outer circumferential rib 63. The ribs 66 may be referred to as second radial ribs, and the radial ribs 64 may be referred to as first radial ribs. Each rib 66 is provided from the rear surface portion 40 to the rear portion of the peripheral wall portion 50. Each rib 66 extends a short distance from the outer circumferential rib 63 along the radial direction of the rear surface portion 40, then curves forward and reaches the front portion of the peripheral wall portion 50. The plurality of ribs 66 are provided along the circumferential direction of the rear surface portion 40, surrounding a central portion of the rear surface portion 40. The plurality of ribs 66 are provided to avoid the underside of the storage portion 70. The plurality of ribs 66 are, for example, arranged at equal intervals along the circumferential direction of the rear surface portion 40. The rib structure 62 includes, for example, 23 ribs 66. Eleven of the 23 ribs 66 are connected to the eleven radial ribs 64, respectively. The radial ribs 64 and the ribs 66 connected thereto may be collectively referred to as third radial ribs. In this case, it can be said that the rib structure 62 includes eleven third radial ribs extending radially from the center of the rear surface portion 40 in a plan view from the rear side.

[0044] The rib structure 62 includes two ribs 67 that extend from the rib 65 to the front portion of the peripheral wall portion 50. The two ribs 67 are aligned in the left-right direction and are located below the storage portion 70. As shown in FIG. 6 , each rib 67 extends forward from the rib 65, then extends a short distance radially of the rear surface portion 40, and then curves forward to reach the front portion of the peripheral wall portion 50.

[0045] The rib structure 62 includes a rib 68 connecting two ribs 67. The rib 68 is located below and in front of the rib 65 and extends in the left-right direction. The rib 67 has a first portion extending forward from the rib 65, a second portion extending slightly from the first portion along the radial direction of the rear surface portion 40, and a third portion bending forward from the second portion to reach the front portion of the peripheral wall portion 50. One end of the rib 68 is connected to the corner between the first and second portions of one rib 67, and the other end of the rib 68 is connected to the corner between the first and second portions of the other rib 67. The rib 68 is located forward of the rib opening 65a, the housing opening 71, the lid opening 81a, the central hole 17a of the waterproof member 17, and the connector-side insertion opening 150. This prevents the rib 68 from interfering with the insertion of the mating connector 7b into the connector 15.

[0046] The rib structure 62 includes a rib 69 that extends from the rib 68 to the front portion of the peripheral wall portion 50. The rib 69 is located between the two ribs 67 in the circumferential direction of the rear surface portion 40. The rib 69 extends a short distance from the rib 68 along the radial direction of the rear surface portion 40, then curves forward and reaches the front portion of the peripheral wall portion 50. A total of 26 ribs, consisting of the 23 ribs 66, the two ribs 67, and the one rib 69, are arranged at equal intervals in the circumferential direction of the rear surface portion 40 so as to surround the storage portion 70.

[0047] The configuration of the rib structure 62 is not limited to the above example. For example, the number of radial ribs 64 may be other than 11. The number of circumferential ribs 63 may be other than 2. The number of ribs 66 may be other than 23.

[0048] The fan 13 is, for example, a propeller fan. The fan 13 is, for example, a propeller-type mixed flow fan. The fan 13 rotates to draw in air from the front and blow the drawn-in air rearward. At this time, the fan 13 blows the drawn-in air rearward at an angle outward relative to the direction of the rotation axis. Note that the fan 13 may be something other than a mixed flow fan. For example, the fan 13 may be an axial flow fan. The fan 13 may also be something other than a propeller fan.

[0049] The fan 13 includes, for example, a boss 130 and a plurality of blades 131 attached to the boss 130. The fan 13 has, for example, seven blades 131. The boss 130 is a connecting portion that connects the plurality of blades 131. The boss 130 is cylindrical with one end nearly closed. The plurality of blades 131 protrude outward from the outer circumferential surface of the cylindrical boss 130 and are aligned along the circumferential direction of the outer circumferential surface. The fan 13 rotates counterclockwise when viewed from the intake side, for example.

[0050] As described above, the center of the rear surface portion 40 is recessed toward the front. For example, the center of the rear surface portion 40 is recessed in a cylindrical shape, and as a result, the inner surface of the rear surface portion 40 has a cylindrical convex surface. The boss 130 covers this cylindrical convex surface. The motor shaft (also referred to as the rotating shaft) of the motor 14 housed in the housing portion 70 protrudes toward the front from the housing portion 70 and is fixed to the boss 130. When the motor shaft rotates, the boss 130 rotates, and in response to the rotation of the boss 130, the multiple blades 131 rotate.

[0051] The intake section 300 of the housing 12 faces the plurality of blades 131. The circumferential rib 35 of the intake section 300 extends along the rotation direction of the fan 13. The plurality of radial ribs 34 of the intake section 300 extend radially in a plan view from a direction along the rotation axis of the fan 13. The rear surface section 40 of the housing 12 faces the plurality of blades 131. The circumferential rib 63 of the rear surface section 40 extends along the rotation direction of the fan 13. The plurality of radial ribs 64 of the rear surface section 40 extend radially in a plan view from a direction along the rotation axis of the fan 13.

[0052] In the fan device 10, when the fan 13 is rotating, air is taken into the housing 12 through the intake ports 32 of the intake section 300. The air taken into the housing 12 is then exhausted to the outside of the housing 12 through the exhaust ports 61 of the exhaust section 600.

[0053] The fixing member 100 is an annular member for fixing the main body 11 to the garment 2. The fixing member 100 includes an annular mounting portion 101 that is attached to the main body 11. As shown in FIG. 8 , an internal thread portion 105 that screws into the external thread portion 51 of the peripheral wall portion 50 of the housing main body 20 is provided on the inner peripheral surface of the mounting portion 101. Furthermore, the fixing member 100 includes a flange portion 102 that surrounds the outer peripheral surface of the mounting portion 101 and protrudes radially from the outer peripheral surface of the fixing member 100. The flange portion 102 is provided at the front peripheral end of the outer peripheral surface of the mounting portion 101.

[0054] When the fan unit 10 having the above-described structure is attached to the mounting hole 4 of the clothing 2, first, the housing 12 of the main body 11 is inserted into the mounting hole 4 from the outside of the clothing 2. At this time, the housing 12 is inserted into the mounting hole 4 from the rear surface 40 side. When the housing 12 is inserted into the mounting hole 4 from the rear surface 40 side, the flange portion 31 of the front surface 30 abuts against the outer surface of the periphery 5 of the mounting hole 4 of the clothing 2 without passing through the mounting hole 4.

[0055] Next, the fixing member 100 is attached to the housing 12 from inside the garment 2 so that the flange portion 102 of the fixing member 100 abuts against the inner surface of the peripheral portion 5 of the garment 2. Specifically, the fixing member 100 is attached to the peripheral wall portion 50 so that the flange portion 102 abuts against the inner surface of the peripheral portion 5 and the female thread portion 105 on the inner peripheral surface of the fixing member 100 threadably engages with the male thread portion 51 on the outer peripheral surface of the peripheral wall portion 50 protruding toward the inside of the garment 2. Then, by tightening the fixing member 100 clockwise as viewed from inside the garment 2, the flange portion 31 of the front surface portion 30 and the flange portion 102 of the fixing member 100 sandwich the peripheral portion 5 of the garment 2. In this way, the fan unit 10 is fixed to the garment 2. When the fan 13 of the fan unit 10 fixed to the garment 2 rotates, air outside the garment 2 is taken into the inside of the garment 2 through the air intake 32 and the air exhaust 61. The air taken into the inside of the garment 2 circulates within the garment 2 and is discharged to the outside of the garment 2 through the neckline or the like of the garment 2.

[0056] On the other hand, when the fan unit 10 is to be removed from the garment 2, the fixing member 100 is rotated counterclockwise as viewed from inside the garment 2, and the fixing member 100 is removed from the housing 12. Then, the housing 12 is removed from the mounting hole 4.

[0057] The fan device 10 may not be detachable from the garment 2, but may be attached to the garment 2 in a non-detachable manner.

[0058] <Configuration example of the housing section that houses the motor, etc.> 9 is a schematic perspective view showing an example of the rear view of the fan device 10 with the cover member 80, the waterproof member 16, and the elastic member 18 removed. For ease of explanation, the wiring 19 and the connector 140 of the motor 14 are not shown in FIG.

[0059] As shown in Figure 9 and the above-mentioned Figure 7, the accommodating section 70 includes, for example, an accommodating section 72 (also referred to as the motor accommodating section 72) that accommodates the motor 14, an accommodating section 76 (also referred to as the connector accommodating section 76) that accommodates the connector 15, and an accommodating section 77 that accommodates the second waterproofing member 17 and the opposing portion 81 of the cover member 80.

[0060] The central portion of the rear surface portion 40 is recessed forward, and a motor accommodating portion 72 is formed in this central portion. The motor accommodating portion 72 can also be referred to as a motor accommodating recess 72. The lower side of the central portion of the rear surface portion 40 is recessed forward, and accommodating portions 76 and 77 are formed below that. The accommodating portions 76 and 77 can also be referred to as accommodating recesses. For example, the central portion of the rear surface portion 40 is recessed more deeply than its lower side, and the motor accommodating portion 72 is deeper than the accommodating portions 76 and 77.

[0061] The motor accommodating portion 72 has, for example, a cylindrical shape with one end closed, and can also be called a cylindrical recess. When viewed from the intake side, the outer shape of the motor accommodating portion 72 is, for example, circular. The motor accommodating portion 72 has a circular opening that opens to the surface (more specifically, the rear surface) of the housing main body 20. The boss 130 of the fan 13 covers the cylindrical convex surface that is the outer surface of the motor accommodating portion 72. The motor shaft of the motor 14 protrudes forward from the motor accommodating portion 72 and is fixed to the boss 130.

[0062] The connector accommodating portion 76 is located below the motor accommodating portion 72. The accommodating portion 77 is located below the connector accommodating portion 76. For example, the outer surface of the motor accommodating portion 72 protrudes further forward than the outer surfaces of the accommodating portions 76 and 77. The inner space of the connector accommodating portion 76 is connected to the inner space of the motor accommodating portion 72 and the inner space of the accommodating portion 77.

[0063] The connector accommodating portion 76 has a generally rectangular opening that opens to the surface of the housing main body 20. Similarly, the accommodating portion 77 has a generally rectangular opening that opens to the surface of the housing main body 20. The opening 700 of the accommodating portion 70 is made up of an opening of the motor accommodating portion 72, an opening of the connector accommodating portion 76, and an opening of the accommodating portion 77. The opening 700 of the accommodating portion 70 opens to the outer surface of the rear surface portion 40.

[0064] As will be described later, the second waterproofing member 17 is attached to, for example, the facing portion 81. The facing portion 81 is accommodated in the accommodation portion 77, thereby accommodating the second waterproofing member 17 in the accommodation portion 77. The accommodation portion opening 71 having a U-shaped outer shape and through which the terminal portion 7bb of the mating connector 7b is inserted is provided in the lower portion (in other words, the lower wall portion) of the accommodation portion 77. It can also be said that the accommodation portion opening 71 is provided in the lower portion (in other words, the lower wall portion) of the accommodation portion 70.

[0065] On the rear surface portion 40, for example, the upper right and lower left portions of the motor accommodating portion 72 are recessed toward the front, and two fixing portion accommodating portions 79 are formed in the upper right and lower left portions, respectively. One fixing portion accommodating portion 79 is located at the upper right of the motor accommodating portion 72, and the other fixing portion accommodating portion 79 is located at the lower left of the motor accommodating portion 72. Each fixing portion accommodating portion 79 is formed shallower than the accommodating portion 70. The inner space of the upper right fixing portion accommodating portion 79 is connected to the inner space of the motor accommodating portion 72. The inner space of the lower left fixing portion accommodating portion 79 is connected to the inner space of the motor accommodating portion 72 and the inner space of the connector accommodating portion 76. A screw hole 78a into which a screw 900 is threaded is provided on the bottom surface of each fixing portion accommodating portion 79.

[0066] <Configuration examples of the cover member and the first waterproof member> Fig. 10 is a schematic perspective view showing an example of the fan device 10 from which the first waterproofing member 16 has been removed, as viewed from the rear side. Fig. 10 shows the state in which the cover member 80 has been attached to the structure shown in Fig. 9. Figs. 11 and 12 are schematic perspective views showing the waterproofing member 16. Fig. 12 shows the first waterproofing member 16 as viewed from an angle different from that shown in Fig. 11. Fig. 13 is a schematic perspective view showing an example of the cover member 80 as viewed from the front side (in other words, from the outer surface side).

[0067] As shown in FIG. 10 and the above-described FIGS. 5 and 6, the housing 12 includes, for example, a connection portion 90 to which the first waterproofing member 16 is connected. The first waterproofing member 16 is connected to the connection portion 90, for example, rotatably. The connection portion 90 is, for example, box-shaped and hollow inside. The connection portion 90 has, for example, a half-split structure. For example, the front half of the connection portion 90 is made up of a part of the housing main body 20, and the rear half of the connection portion 90 is made up of a part of the cover member 80. The connection portion 90 has, for example, an engagement hole 91 that engages with a pivot shaft 165a (described below) provided on the waterproofing member 16. The connection portion 90 is located, for example, on the left side of the storage portions 76 and 77.

[0068] 10 and 13, the lid member 80 includes, for example, a lid main body portion 82 that covers the opening 700 of the storage portion 70, a fixing portion 88 that is fixed to the housing main body 20, and the aforementioned facing portion 81. The lid member 80 includes, for example, two fixing portions 88. The two fixing portions 88 are respectively housed in two fixing portion housing portions 79. The gap between the lid member 80 and the storage portion 70 is sealed by an elastic member 18, which will be described later.

[0069] The lid main body 82 has a shape corresponding to the opening 700 of the housing 70, and covers the opening of the motor housing 72, the opening of the connector housing 76, and the opening of the housing 77. The lid main body 82 includes a first main body portion 820 that covers the opening of the motor housing 72, a second main body portion 826 that covers the opening of the connector housing 76, and a third main body portion 827 that covers the opening of the housing 77. The first main body portion 820 covers the motor 14, the second main body portion 826 covers the connector 15, and the third main body portion 827 covers the waterproof member 17. The first main body portion 820 is generally circular in a plan view from the rear. The second main body portion 826 and the third main body portion 827 are generally rectangular in a plan view from the rear.

[0070] The housing 70 has an opposing end face 78 on its inner circumferential surface that faces the periphery of the rear surface of the lid main body 82. The opposing end face 78 is one step lower than the periphery of the opening 700 of the housing 70 and extends along the periphery of the opening 700 in a plan view from the rear. The motor housing 72 has an opposing end face 782 (also referred to as the motor-side opposing end face 782) on its inner circumferential surface that faces the periphery of the rear surface of the first main body portion 820. The connector housing 76 has an opposing end face 786 (also referred to as the connector-side opposing end face 786) on its inner circumferential surface that faces the periphery of the rear surface of the second main body portion 826. The opposing end face 78 includes the motor-side opposing end face 782 and the connector-side opposing end face 786. The connector-side opposing end face 786 is located at a higher position (in other words, rearward) than the motor-side opposing end face 782. The opposing end faces 782 and 786 are, for example, perpendicular to the front-rear direction. In other words, the opposing end faces 782 and 786 are, for example, perpendicular to the attachment direction of the cover member 80 to the housing main body 20.

[0071] The bottom surface of the upper right fixed part accommodating section 79 is connected to, for example, the motor-side facing end surface 782 and is located at the same height as the motor-side facing end surface 782. The bottom surface of the lower left fixed part accommodating section 79 is, for example, one step lower than the motor-side facing end surface 782.

[0072] As shown in Figures 7 and 9, an inclined surface 783 that connects to the opposing end surface 782 is provided on the inner circumferential surface of the motor accommodating portion 72. The inclined surface 783 is located along the opposing end surface 782. In a plan view from the rear, the inclined surface 783 is located along the periphery of the opening of the motor accommodating portion 72. The inclined surface 783 is inclined with respect to the front-rear direction. In other words, the inclined surface 783 is inclined with respect to the attachment direction of the cover member 80. When viewed from the opening side of the motor accommodating portion 72, the inclined surface 783 is inclined inward of the motor accommodating portion 72. The inclined surface 783 is inclined inward of the motor accommodating portion 72 as it moves toward the back side of the motor accommodating portion 72.

[0073] The facing portion 81 of the lid member 80 is, for example, generally plate-shaped and protrudes forward from the rear surface of the main body third portion 827. The two fixing portions 88 protrude from the outer periphery of the main body first portion 820. Each fixing portion 88 has an insertion hole 88a through which a screw 900 is inserted. When the lid main body portion 82 is positioned to cover the opening 700 of the accommodation portion 70, the two fixing portions 88 are respectively accommodated in the two fixing portion accommodation portions 79. When the two fixing portions 88 are respectively accommodated in the two fixing portion accommodation portions 79, the insertion holes 88a of the two fixing portions 88 face the screw holes 78a of the two fixing portion accommodation portions 79, respectively. The screws 900 inserted into the respective insertion holes 88a are threaded into the screw holes 78a facing the corresponding insertion holes 88a, thereby fixing the two fixing portions 88 to the two fixing portion accommodation portions 79, respectively. This fixes the cover member 80 to the housing body 20. The cover member 80 covers the opening 700 of the accommodation portion 70, and therefore the motor 14, connector 15, etc. inside the accommodation portion 70 are covered by the cover member 80.

[0074] The cover member 80 has a half portion 85 that forms the rear half of the connection portion 90. The half portion 85 has a partial hole 85a that forms the rear half of the engagement hole 91 of the connection portion 90. As shown in Figures 9 and 10, the rear surface portion 40 of the housing main body 20 has a half portion 25 that forms the front half of the connection portion 90. The half portion 25 has a partial hole 25a that forms the front half of the engagement hole 91 of the connection portion 90. The half portion 25 is located to the left of the storage portions 76 and 77 and is connected to the storage portions 76 and 77. When the cover member 80 is fixed to the housing main body 20, the half portion 85 of the cover member 80 and the half portion 25 of the rear surface portion 40 are joined to form the connection portion 90. At this time, the partial hole 85a and the partial hole 25a are connected to form the engagement hole 91.

[0075] 11 and 12, the waterproof member 16 includes a lid portion 160 capable of closing the housing-side insertion opening 45, a connection portion 165 connected to the housing 12, and a connecting portion 168 connecting the lid portion 160 and the connection portion 165. The waterproof member 16 is an elastic member made of an elastic material such as rubber or elastomer. The lid portion 160 is fitted and locked into the housing-side insertion opening 45, for example.

[0076] The connecting portion 165 is coupled to the housing 12 so as to be rotatable relative to the housing 12. The connecting portion 165 is coupled to the connecting portion 90 of the housing 12. The hollow connecting portion 90 is capable of partially accommodating the connecting portion 165.

[0077] The connecting portion 165 has a cylindrical shape with a smaller diameter at the middle in the height direction. The connecting portion 165 includes, for example, a rotating shaft 165a, a housed portion 165b housed in the connecting portion 90, and an outer portion 165c located outside the connecting portion 90. The rotating shaft 165a is a very short shaft, and the housed portion 165b and the outer portion 165c are connected to both ends of the rotating shaft 165a, respectively. The rotating shaft 165a, the housed portion 165b, and the outer portion 165c each have, for example, a cylindrical shape. The diameter of the rotating shaft 165a is smaller than the diameters of the housed portion 165b and the outer portion 165c. The diameter of the housed portion 165b and the diameter of the outer portion 165c are generally the same.

[0078] The engagement hole 91 with which the rotation shaft 165a engages is provided in the wall on the left side of the connection part 90. The rotation shaft 165a engages while being inserted through the engagement hole 91. In the connection part 165 connected to the connection part 90, the axial direction of the rotation shaft 165a is parallel to the left-right direction. The waterproofing member 16 can rotate around the rotation shaft 165a engaging with the engagement hole 91 as a fulcrum. In a side view from the left side, the waterproofing member 16 can rotate both clockwise and counterclockwise around the connection part 165 as a fulcrum. FIG. 14 is a schematic perspective view showing an example of how the waterproofing member 16 rotates.

[0079] When the terminal portion 7bb of the mating connector 7b is not connected to the connector 15, the lid portion 160 of the waterproofing member 16 can be fitted and locked into the housing-side insertion opening 45. After the user rotates the waterproofing member 16 as shown in Figure 14, the user fits and locks the lid portion 160 into the housing-side insertion opening 45.

[0080] As shown in FIGS. 11 and 12 , the cover portion 160 has, for example, a cylindrical shape with a diameter that increases stepwise. For example, the cover portion 160 has a cylindrical shape with a diameter that increases in two steps. The cover portion 160 has, for example, a cylindrical first portion 160a with the smallest diameter, a cylindrical second portion 160b with the next smallest diameter, and a cylindrical third portion 160c with the largest diameter. The second portion 160b is connected to the first portion 160a and the third portion 160c so as to be sandwiched between them. The second portion 160b can also be considered an intermediate portion. The central axes of the first portion 160a, the second portion 160b, and the third portion 160c are aligned in a straight line. The cover portion 160 is fitted and locked into the housing-side insertion opening 45 from the first portion 160a side. The first portion 160a can also be considered a tip portion. The cover portion 160 fits into the housing-side insertion opening 45 from below.

[0081] The lid portion 160 has, for example, a cylindrical hollow portion 160d. The hollow portion 160d is formed in the first portion 160a and the second portion 160b. As a result, the first portion 160a and the second portion 160b are cylindrical (in other words, hollow columnar with both ends open).

[0082] The cover 160 has, for example, a knob 160e. The knob 160e is held by, for example, the user's fingers. The user fits and locks the cover 160 into the housing-side insertion opening 45 by, for example, holding the knob 160e.

[0083] The knob 160e is provided on the third portion 160c of the cover 160. The cylindrical third portion 160c has a recess 160cc that opens to the bottom surface opposite the bottom surface on the second portion 160b side. The recess 160cc is, for example, cylindrically recessed. The knob 160e is, for example, plate-shaped and stands on the bottom surface of the recess 160cc. The knob 160e protrudes outward from the opening of the recess 160cc. Furthermore, there is an inner space of the recess 160cc on both sides of the plate-shaped knob 160e in the thickness direction. For example, a user pinches the knob 160e by pinching it with their fingers from both sides in the thickness direction. Because the knob 160e protrudes outward from the opening of the recess 160cc, it is easy to pinch. Furthermore, since there is an inner space of the recess 160cc on both sides in the thickness direction of the knob 160e provided in the recess 160cc, the knob 160e can be easily pinched from both sides in the thickness direction.

[0084] The connecting portion 168 connecting the lid portion 160 and the connecting portion 165 is, for example, in the form of a flat string. The connecting portion 168 can also be said to be in the form of a band. One end of the connecting portion 168 is connected to the third portion 160c of the lid portion 160, and the other end of the connecting portion 168 is connected to the outer portion 165c of the connecting portion 165. The connecting portion 168 has an opening 168a penetrating through in the thickness direction thereof. The opening 168a is present in the connecting portion 168 from the end on the lid portion 160 side to the center, and has an elongated shape. The connecting portion 168 can bend or twist. The connecting portion 168 has the opening 168a, so that the connecting portion 168 is easily bent or twisted.

[0085] 15 and 16 are schematic enlarged views showing an example of how the cover portion 160 covers the housing-side insertion opening 45. Fig. 16 shows an example of how the fan unit 10, with the cover member 80 and the elastic member 18 removed, is viewed from the rear.

[0086] The lid portion 160 is inserted into the housing-side insertion opening 45 and engaged. When the lid portion 160 is inserted into the housing-side insertion opening 45, the lid portion 160 is first inserted into the rib opening 65a and then inserted into the accommodation portion 70 through the accommodation portion opening 71. The lid portion 160 is then inserted into the lid opening 81a and then inserted into the hole 17a of the waterproof member 17. The lid portion 160 is not inserted into the connector-side insertion opening 150, for example.

[0087] When the lid portion 160 is inserted into the housing side insertion opening 45, the first portion 160a fits into the lid opening 81a, the second portion 160b fits into the storage portion opening 71, and the third portion 160c fits into the rib opening 65a.

[0088] The first portion 160a fits into and locks with the cylindrical lid opening 81a to close the lid opening 81a. Figure 17 is a schematic perspective view showing an example of how the first portion 160a fits into and locks with the lid opening 81a. Figure 17 shows only the waterproof member 16 and the lid member 80 of the fan unit 10. As shown in Figure 17, the first portion 160a is inserted into and locked with the lid opening 81a.

[0089] Furthermore, the first portion 160a fits into the hole 17a of the waterproofing member 17 so as to close the hole 17a. The first portion 160a may be inserted into the hole 17a of the waterproofing member 17 so as to widen the hole 17a, or may be inserted into the hole 17a so as not to widen the hole 17a. The first portion 160a is not fitted into the connector-side insertion opening 150, for example, but is adjacent to the connector-side insertion opening 150.

[0090] When the user changes the state of the waterproof member 16 from one in which it is housed in the housing 12 (see FIGS. 5 and 6) to one in which it blocks the housing-side insertion opening 45 (see FIGS. 15 and 16), the user pinches the knob 160e of the lid portion 160 and rotates the waterproof member 16 as shown in FIG. 14. Then, while pinching the knob 160e, the user inserts the lid portion 160 into the housing-side insertion opening 45 from the first portion 160a side, and fits and locks the lid portion 160 into the housing-side insertion opening 45. At this time, the connecting portion 168 of the waterproof member 16 is in a twisted state as shown in FIGS. 15 and 16. Because the opening 168a makes the connecting portion 168 more easily twistable, the user can more easily fit the lid portion 160 into the housing-side insertion opening 45.

[0091] It should be noted that lid portion 160 may be fitted into connector-side insertion opening 150. Figure 18 is a simplified schematic diagram showing how lid portion 160 is fitted into connector-side insertion opening 150. First portion 160a inserted into connector-side insertion opening 150 may be fitted into connector-side insertion opening 150 so as to block connector-side insertion opening 150. When first portion 160a blocks connector-side insertion opening 150, first portion 160a may be inserted into lid opening 81a so as to leave a gap therebetween and not block lid opening 81a.

[0092] In this way, in fan device 10, waterproof member 16 can block the insertion opening (also referred to as the mating connector side insertion opening) into which mating connector 7b is inserted. Therefore, by blocking the mating connector side insertion opening with waterproof member 16 when fan device 10 is not in use, even if water gets on fan device 10 when not in use, it becomes difficult for water to enter through the mating connector side insertion opening. This makes it possible, for example, to wash off foreign matter such as dust adhering to fan device 10 with water when fan device 10 is not in use.

[0093] Furthermore, when waterproof member 16 blocks connector-side insertion opening 150, which is the insertion opening on the mating connector side, water is less likely to enter through connector-side insertion opening 150. When waterproof member 16 blocks housing-side insertion opening 45, which is the insertion opening on the mating connector side, water is less likely to enter housing 12. When waterproof member 16 blocks not only connector-side insertion opening 150 in housing 12 but also housing-side insertion opening 45, water is even less likely to enter through connector-side insertion opening 150.

[0094] When the waterproof member 16 is not used, such as when the fan device 10 is in use, the waterproof member 16 can be stored in, for example, the housing 12. As shown in FIGS. 10 and 13 , for example, the cover member 80 of the housing 12 includes a storage section 86 capable of storing at least a portion of the waterproof member 16. The storage section 86 is formed by partially recessing the front surface of the cover member 80. The storage section 86 is formed, for example, by partially recessing the front surface of the first main body portion 820 of the cover member 80. The storage section 86 can also be referred to as a storage recess 86 that opens into the front surface of the cover member 80.

[0095] The storage section 86 includes, for example, a lid storage section 860 capable of storing the lid section 160 of the waterproofing member 16, and a connecting section storage section 868 capable of partially storing the connecting section 168 of the waterproofing member 16. The lid section 160 is stored in the lid storage section 860 from the first section 160a side. The connecting section storage section 868 can store, for example, the portion of the connecting section 168 where the opening 168a is formed. The storage section 86 can store, for example, a portion of the waterproofing member 16.

[0096] The lid storage section 860 is provided in the center of the front surface of the first main body section 820. The opening of the lid storage section 860 is, for example, approximately circular in plan view from the rear side. The lid storage section 860 includes, for example, a first storage section 860a that stores the first section 160a of the lid section 160, and a second storage section 860b that stores the second section 160b and the third section 160c of the lid section 160. The first storage section 860a is, for example, a cylindrical recess with one end closed. The first section 160a of the lid section 160 fits into the first storage section 860a. When the first section 160a is fitted into the first storage section 860a, for example, a gap exists between the outer circumferential surface of the first section 160a and the inner circumferential surface of the first storage section 860a.

[0097] The second storage portion 860b is, for example, cylindrical. The inner space of the second storage portion 860b is connected to the inner space of the first storage portion 860a. The second storage portion 860b opens to the front surface of the lid main body 82. The second portion 160b and the third portion 160c of the lid portion 160 fit into the second storage portion 860b. The inner peripheral surface of the second storage portion 860b is provided with a plurality of elongated protrusions (also referred to as ribs) 860c in an area facing the outer peripheral surface of the second portion 160b. When the second portion 160b fits into the second storage portion 860b, the outer peripheral surface of the second portion 160b is pressed inward by the plurality of elongated protrusions 860c. As a result, the second portion 160b fits into and locks into the second storage portion 860b. The second portion 160b fits and locks into the second housing portion 860b, whereby the cover 160 fits and locks into the cover housing portion 860.

[0098] The connecting portion storage portion 868 is shallower than the lid portion storage portion 860. For example, the connecting portion storage portion 868 extends from the second storage portion 860b of the lid portion storage portion 860 to the lower left. The inner space of the connecting portion storage portion 868 is connected to the inner space of the second storage portion 860b. The connecting portion storage portion 868 reaches the outer peripheral edge of the first main body portion 820 of the lid member 80 and opens to the outer peripheral side surface of the first main body portion 820. When the waterproof member 16 is stored in the storage portion 86, the connecting portion 168 extends from the third portion 160c stored in the second storage portion 860b into the connecting portion storage portion 868 and extends downward from the connecting portion storage portion 868 to reach the connecting portion 165. In the waterproof member 16, for example, the portion of the connecting portion 168 where the opening 168a is not formed and the connecting portion 165 are not stored in the storage portion 86.

[0099] Hereinafter, the portion of the waterproof member 16 that is stored in the storage section 86 may be referred to as the stored portion. The stored portion is composed of, for example, the lid portion 160 and the portion of the connecting portion 168 where the opening 168a is formed.

[0100] On the front surface of the portion of lid main body 82 other than storage section 86, the front surface of main body second section 826 covering connector 15 and its vicinity are slightly higher than other areas in accordance with the height of connector 15. Specifically, for example, the front surface of main body second section 826, the front surface of main body third section 827, and the front surface of the lower one-third section of main body first section 820 (other than storage section 86) are slightly higher than the front surface of the upper two-thirds section of main body first section 820 (other than storage section 86).

[0101] In the fan device 10, for example, the portion of the waterproofing member 16 that is accommodated, other than the tab 160e, is located within the storage compartment 86. In other words, the portion of the accommodated portion, other than the tab 160e, is located within the internal space of the storage compartment 86. For example, the portion of the lid portion 160 of the waterproofing member 16 that is accommodated, other than the tab 160e, is located within the lid storage compartment 860 and does not protrude rearward beyond the internal space of the lid storage compartment 860. A portion of the tab 160e is located outside the lid storage compartment 860, and the tab 160e protrudes slightly rearward beyond the internal space of the lid storage compartment 860. Furthermore, the portion of the connecting portion 168 of the waterproofing member 16 where the opening 168a is formed is located within the connecting portion storage compartment 868 and does not protrude rearward beyond the internal space of the connecting portion storage compartment 868. In this way, part of the tab 160e is located outside the storage section 86, and the portion of the waterproofing member 16 that is housed other than the tab 160e is located inside the storage section 86, which makes it easier to hold the tab 160e and reduces the likelihood of the housed portion of the waterproofing member 16 interfering with the surroundings. Therefore, the tab 160e is easier to hold and the waterproofing member 16 is less likely to come off the storage section 86.

[0102] The entire stored portion of the waterproofing member 16 may be located within the storage portion 86. The entire knob 160e may be located within the storage portion 86. The portion of the stored portion other than the knob 160e may protrude from the storage portion 86. For example, at least a part of the portion of the connecting portion 168 where the opening 168a is provided may protrude from the connecting portion storage portion 868.

[0103] When changing the state of the waterproof member 16 from one in which it blocks the housing-side insertion opening 45 (see FIGS. 15 and 16) to one in which it is stored in the housing 12 (see FIGS. 5 and 6), the user, for example, pinches the knob 160e of the lid portion 160 to remove the lid portion 160 from the housing-side insertion opening 45. Then, while pinching the knob 160e, the user rotates the waterproof member 16 to fit the lid portion 160 from the first portion 160a side into the lid portion storage portion 860 and store it therein, and also stores the connecting portion 168 in the connecting portion storage portion 868.

[0104] The portion of the waterproof member 16 that is housed in the housing 12 is not limited to the above example. For example, the portion of the connecting portion 168 that does not have the opening 168a may be housed in the housing 12. Furthermore, the portion of the connecting portion 168 that has the opening 168a may not be housed in the housing 12. Furthermore, the entire connecting portion 168 may not be housed in the housing 12. Furthermore, the cover portion 160 may not be housed in the housing 12.

[0105] As described above, in the fan device 10, the housing 12 has the storage section 86 that stores at least a portion of the waterproof member 16. This makes it less likely that the waterproof member 16 will get in the way when not in use. It also makes it less likely that the waterproof member 16 will get lost when not in use. This improves the convenience of the fan device 10.

[0106] Furthermore, in the fan device 10, the waterproof member 16 is connected to the housing 12, which makes it even more difficult for the waterproof member 16 to be lost.

[0107] Furthermore, in the fan device 10, the connection portion 165 of the waterproof member 16 is rotatable relative to the housing 12, which makes it easy to change the position of the waterproof member 16. This makes it easy to store the waterproof member 16 in the storage portion 86, or to remove the waterproof member 16 from the storage portion 86 and use the waterproof member 16 to block the insertion opening on the mating connector side.

[0108] Furthermore, since the waterproofing member 16 has the knob 160e, the user can easily store the waterproofing member 16 in the storage section 86 or remove it from the storage section 86 by holding the knob 160e.

[0109] Furthermore, since the cover portion 160 of the waterproofing member 16 has the knob portion 160e, the user can easily close the mating connector side insertion opening with the cover portion 160 by pinching the knob portion 160e.

[0110] Furthermore, if the storage section 86 is capable of storing the lid section 160 having the knob 160e, the user can easily store the lid section 160 in the storage section 86 or remove it from the storage section 86 by pinching the knob 160e.

[0111] The waterproof member 16 does not have to be connected to the housing 12. In this case, the waterproof member 16 may be composed of, for example, only the lid portion 160. Furthermore, the connection portion 165 of the waterproof member 16 may be unable to rotate with respect to the housing 12. Furthermore, the waterproof member 16 does not have to include the knob portion 160e. Furthermore, the knob portion 160e may be provided on a portion other than the lid portion 160. For example, the knob portion 160e may be provided on the connecting portion 168. Furthermore, the connecting portion 168 does not have to include the opening 168a.

[0112] <Configuration example of elastic member> Figures 19 and 20 are schematic perspective views showing an example of the elastic member 18 and the cover member 80. Figures 19 and 20 show the cover member 80 as viewed from the back side. Figure 20 also shows the waterproof member 17. Figure 21 is a schematic perspective view showing an example of the elastic member 18. Of the elastic member 18 and cover member 80 shown in Figure 19, Figure 21 shows only the elastic member 18. Figure 22 is a schematic plan view showing an example of the elastic member 18 as viewed from arrow A in Figure 21.

[0113] The elastic member 18 is located, for example, on the back side of the lid member 80, and functions to seal the gap between the lid member 80 and the housing portion 70. This makes it difficult for water to enter between the lid member 80 and the housing portion 70, and makes it difficult for the motor 14, connector 15, and wiring 19 inside the housing portion 70 to become wet. The elastic member 18 also has the function of, for example, holding down the motor 14 and connector 15 inside the housing portion 70. This makes it difficult for the motor 14 and connector 15 to move within the housing portion 70. As a result, abnormal noise is less likely to occur. Furthermore, the motor 14 and connector 15 are less likely to be damaged by hitting their surroundings.

[0114] The elastic member 18 is made of an elastic material such as elastomer. The elastic member 18 is made of, for example, a different material from the lid member 80. The lid member 80 is made of, for example, a resin harder than the elastic member 18. The elastic member 18 and the lid member 80 are, for example, integrally molded. The elastic member 18 and the lid member 80 are, for example, double-molded. The elastic member 18 is provided, for example, on the back surface of the lid member 80. The back surface of the lid member 80 protrudes in accordance with the storage portion 86 formed on the front surface of the lid member 80 and has a shape corresponding to the shape of the elastic member 18 integrally molded with the lid member 80. Hereinafter, for convenience of explanation, the side of the elastic member 18 shown in FIG. 22 will be referred to as the back side. FIG. 22 can be said to be a plan view showing an example of the elastic member 18 as viewed from its back side.

[0115] For example, not only the elastic member 18 but also the waterproof member 17 is attached to the cover member 80. As shown in FIG. 20 and the above-described FIG. 17, the facing portion 81 of the cover member 80 is provided with a storage portion 81b that stores the waterproof member 17. The storage portion 81b is, for example, a recess with a partially open bottom surface. The opening on the bottom surface of the storage portion 81b is connected to the opening 81a. A plurality of elongated protrusions (also referred to as ribs) 81c is provided on the inner peripheral surface (in other words, the side surface) of the storage portion 81b. When the waterproof member 17 is stored in the storage portion 81b, the outer periphery of the waterproof member 17 is pressed inward by the plurality of elongated protrusions 81c. This holds the waterproof member 17 in the storage portion 81b. Note that the method for fixing the position of the waterproof member 17 within the housing 12 is not limited to this.

[0116] The elastic member 18 has, for example, an elastic seal portion 180 that seals between the cover member 80 and the housing portion 70. The elastic seal portion 180 is located along the periphery of the rear surface of the first main body portion 820 and the second main body portion 826 of the cover main body portion 82. When the cover member 80 is attached to the housing main body 20, the elastic seal portion 180 is located along the openings of the motor housing portion 72 and the connector housing portion 76. The elastic seal portion 180 has, for example, a keyhole-shaped loop. FIG. 23 is a schematic diagram showing an example of the elastic seal portion 180 when the cover member 80 is attached to the housing main body 20. FIG. 23 shows the elastic seal portion 180 removed from the cover member 80. Hereinafter, the state in which the cover member 80 is attached to the housing main body 20 may be referred to as the closed cover state.

[0117] The elastic seal portion 180 includes a linear first seal portion 181 located along the periphery of the back surface of the first main body portion 820 of the lid member 80, and a linear second seal portion 182 connected to the first seal portion 181 and located along the periphery of the back surface of the second main body portion 826 of the lid member 80. In a plan view from the back surface side of the elastic member 18, the first seal portion 181 has an arc shape. In a plan view from the back surface side of the elastic member 18, the second seal portion 182 has a generally rectangular shape with one side removed, forming a substantially U-shape. The height (in other words, thickness) of the first seal portion 181 is greater than the height of the second seal portion 182, for example.

[0118] In the closed state, as shown in Fig. 23, the first seal portion 181 is positioned along the opening of the motor accommodating portion 72, and the second seal portion 182 is positioned along the opening of the connector accommodating portion 76. As shown in Fig. 23, the waterproof member 17 is positioned, for example, below the second seal portion 182.

[0119] When the cover member 80 is attached to the housing main body 20, the elastic seal portion 180 comes into contact with, for example, the inner circumferential surface of the accommodating portion 70 and the connector 15, and is crushed by the inner circumferential surface of the accommodating portion 70 and the connector 15. This causes the elastic seal portion 180 to adhere liquid-tightly to the inner circumferential surface of the accommodating portion 70 and the connector 15. As a result, the gap between the cover member 80 and the accommodating portion 70 is sealed (strictly speaking, the gap between the cover member 80 and the portion of the accommodating portion 70 excluding the accommodating portion 77 is sealed), making it difficult for water to enter between the cover member 80 and the accommodating portion 70. This makes it difficult for water to get on the motor 14, connector 15, and wiring 19 inside the accommodating portion 70.

[0120] The first seal portion 181 comes into contact with the inner circumferential surface of the motor accommodating portion 72 and is crushed. For example, the first seal portion 181 comes into contact with an inclined surface 783 provided on the inner circumferential surface of the motor accommodating portion 72 and is crushed. The inclined surface 783 can also be called a contact surface that comes into contact with the first seal portion 181 or a pressing surface that presses the first seal portion 181. The inclined surface 783 is inclined with respect to the attachment direction of the cover member 80 to the housing main body 20.

[0121] Fig. 24 is a schematic diagram showing an example of how the first seal portion 181 abuts against the inclined surface 783. Fig. 24 shows a cross-sectional structure of the first seal portion 181 and the motor accommodating portion 72 taken along the front-rear direction (in other words, a cross-sectional structure taken along the depth direction of the motor accommodating portion 72). Fig. 24 also shows the attachment direction D2 of the cover member 80.

[0122] First seal portion 181 attached to the back surface of cover member 80 comes into contact with inclined surface 783 that is inclined with respect to mounting direction D2 of cover member 80, making first seal portion 181 more likely to collapse. This improves the seal between cover member 80 and housing portion 70, making it more difficult for water to enter between cover member 80 and housing portion 70. Note that first seal portion 181 may also come into contact with motor-side end surface 782 that is perpendicular to mounting direction D2 of cover member 80.

[0123] The second seal portion 182 comes into a crushed state, for example, by contacting the inner circumferential surface of the connector accommodating portion 76 and the connector 15. The second seal portion 182 comes into a crushed state, for example, by contacting an opposing end face 786 provided on the inner circumferential surface of the connector accommodating portion 76 and the connector 15.

[0124] The second seal portion 182 has, for example, a linear right portion 182a located on the right side in the closed state, a linear left portion 182b located on the left side in the closed state, and a linear lower portion 182c located on the lower side in the closed state. The right portion 182a and the left portion 182b extend in the up-down direction and face each other in the left-right direction. The lower portion 182c extends in the left-right direction, extending from the lower end of the right portion 182a to the lower end of the left portion 182b.

[0125] The right portion 182a is located on the connector-side facing end surface 786, but not on the connector 15. The right portion 182a comes into contact with the connector-side facing end surface 786 and is crushed. The left portion 182b is located on both the connector-side facing end surface 786 and the connector 15, and is positioned straddling the connector accommodating portion 76 and the connector 15. The left portion 182b comes into contact with the connector-side facing end surface 786 and the connector 15 and is crushed. The left portion 182b can also be called a straddling portion 182b that is positioned straddling the connector accommodating portion 76 and the connector 15.

[0126] The lower portion 182c has a right end portion 182ca located on the right side in the closed state, a left end portion 182cb located on the left side in the closed state, and a middle portion 182cc located between the right end portion 182ca and the left end portion 182cb. The right end portion 182ca and the left end portion 182cb are located on both the connector-side facing end surface 786 and the connector 15, and are positioned straddling the connector accommodating portion 76 and the connector 15. The right end portion 182ca and the left end portion 182cb are each in a crushed state by contacting the connector-side facing end surface 786 and the connector 15. The right end portion 182ca can also be referred to as a straddling portion 182ca located straddling the connector accommodating portion 76 and the connector 15. Similarly, the left end portion 182cb can also be referred to as a straddling portion 182cb located straddling the connector accommodating portion 76 and the connector 15. The intermediate portion 182cc is located on the connector 15, but is not located on the connector-side opposing end surface 786. The intermediate portion 182cc comes into contact with the connector 15 and is crushed.

[0127] The straddling portions 182b, 182ca, 182cb and the middle portion 182cc of the lower portion 182c come into contact with the connector 15 and therefore function as elastic pressing portions that press the connector 15.

[0128] The second seal portion 182 is formed, for example, to be thicker than the first seal portion 181. As a result, the straddling portions 182b, 182ca, and 182cb of the second seal portion 182 are thicker than the first seal portion 181. In addition, the portions of the second seal portion 182 other than the straddling portions 182b, 182ca, and 182cb, that is, the right portion 182a and the middle portion 182cc of the lower portion 182c, are also thicker than the first seal portion 181.

[0129] In this way, in the fan device 10, the elastic seal 180 that seals the gap between the cover member 80 and the housing portion 70 is provided, so that water is less likely to enter the housing portion 70.

[0130] Furthermore, because spanning portions 182b, 182ca, and 182cb positioned across connector accommodating portion 76 and connector 15 are thicker, spanning portions 182b, 182ca, and 182cb are more likely to be crushed. As a result, even if a step occurs at the boundary between the surface of connector accommodating portion 76 (more specifically, connector-side facing end face 786) and the surface of connector 15, the step can be absorbed to seal between lid member 80 and connector accommodating portion 76. As a result, the sealing performance between lid member 80 and connector accommodating portion 76 is improved.

[0131] Furthermore, in fan device 10, elastic seal portion 180 presses connector 15, and therefore connector 15 can be appropriately pressed using the elastic force of elastic seal portion 180. This makes it less likely that connector 15 will be damaged if pressed too tightly, or that connector 15 will move if pressed too weakly.

[0132] At least one of the straddling portions 182b, 182ca, 182cb does not have to be thicker than the first seal portion 181. In addition, at least one of the right portion 182a and the middle portion 182cc of the lower portion 182c does not have to be thicker than the first seal portion 181.

[0133] In addition to the elastic seal portion 180, the elastic member 18 also includes an elastic pressing portion 185 that presses the motor 14. The elastic member 18 includes, for example, two elastic pressing portions 185 that are positioned apart from each other.

[0134] Each elastic retainer 185 is located on the back side of the first main body portion 820 of the cover member 80. Each elastic retainer 185 is, for example, in the shape of a generally curved plate and is erected on the back side of the first main body portion 820. The two elastic retainers 185 are, for example, arranged opposite each other with the center of the back side of the first main body portion 820 sandwiched between them. The tip end face of each elastic retainer 185 abuts against the connector 15.

[0135] In this way, fan device 10 is provided with elastic retaining portion 185 that retains motor 14, and therefore motor 14 can be appropriately retained by the elastic force of elastic retaining portion 185. This makes it less likely that motor 14 will be damaged if the retaining force on motor 14 is too strong, or that motor 14 will move if the retaining force on motor 14 is too weak.

[0136] The fan device 10 may be provided with one elastic retainer 185, or with three or more elastic retainers 185. The location where the elastic retainer 185 is provided is not limited to the above example.

[0137] The elastic member 18 includes a connecting portion 188 that connects the elastic sealing portion 180 and the elastic pressing portion 185. The elastic sealing portion 180, the elastic pressing portion 185, and the connecting portion 188 are, for example, integrally molded with one another. The connecting portion 188 is provided on the back surface of the first main body portion 820 of the cover member 80.

[0138] The connecting portion 188 includes a substantially cylindrical first portion 188a located in the center of the back surface of the first main body portion 820, and a plurality of second portions 188b extending from the first portion 188a toward the outer edge of the back surface of the first main body portion 820. The connecting portion 188 includes, for example, four second portions 188b. The four second portions 188b are configured as two second portions 188b extending from the first portion 188a to the first seal portion 181, one second portion 188b extending from the first portion 188a to one of the elastic pressing portions 185, and one second portion 188b extending from the first portion 188a to the other elastic pressing portion 185. In the closed state, the connecting portion 188 does not come into contact with the connector 15.

[0139] In this way, in fan device 10, elastic seal portion 180, elastic retainer portion 185, and connecting portion 188 are integrally molded, so that when elastic seal portion 180 seals the gap between cover member 80 and housing portion 70, elastic retainer portion 185 can retain motor 14. This improves the ease of assembly of fan device 10.

[0140] Furthermore, in fan device 10, elastic seal portion 180, elastic pressing portion 185, connecting portion 188, and cover member 80 are integrally molded, so that when cover member 80 is attached to housing main body 20, the gap between cover member 80 and accommodating portion 70 is sealed and motor 14 can be pressed down. This further improves the ease of assembly of fan device 10.

[0141] Elastic sealing member 180 and elastic pressing member 185 may be formed from separate members. In this case, connecting member 188 is not required. Furthermore, at least one of elastic sealing member 180 and elastic pressing member 185 may be formed from a separate member independent of lid member 80, rather than being integrally molded with lid member 80.

[0142] In the above example, the waterproof member 16 is stored in the lid member 80 of the housing 12, but it may be stored in another part of the housing 12. For example, as shown in FIG. 25 , the waterproof member 16 may be stored in the rear part 40 of the housing 12. In the example of FIG. 25 , the fan device 10 includes a storage part 400 capable of storing at least a part of the waterproof member 16, instead of the storage part 86. The storage part 400 is located, for example, on the left side of the lid member 80. The storage part 400 stores, for example, the lid part 160 of the waterproof member 16. Furthermore, the storage part 400 stores, for example, a part of the coupling part 168 of the waterproof member 16 other than the part near the connection part 165.

[0143] 25, even when the storage section 400 is provided in addition to the cover member 80, the waterproof member 16 is less likely to get in the way when not in use, and is less likely to be lost when not in use. This improves the convenience of the fan device 10.

[0144] 25, the connecting portion 168 does not have an opening 168a, but the connecting portion 168 may have an opening 168a. The portion of the waterproofing member 16 that is stored in the storage portion 400 is not limited to the example of FIG. 25. For example, the entire connecting portion 168 may be stored in the storage portion 400, or the entire connecting portion 168 may not be stored in the storage portion. The lid portion 160 may not be stored in the storage portion 400. The location where the waterproofing member 16 is stored in the rear portion 40 is not limited to the example of FIG. 25.

[0145] In the example of FIG. 25, the storage section 400 provided outside the cover member 80 may obstruct the flow of air caused by the rotation of the fan 13, and the amount of airflow from the fan device 10 may decrease.

[0146] 5 and 6, the storage section 86 is provided in the cover member 80 that covers the opening 700 of the storage section 70 that stores the motor 14, etc., and therefore the storage section 86 is less likely to obstruct the flow of air caused by the rotation of the fan 13. This makes it possible to improve the air volume of the fan device 10.

[0147] <Example of fan structure> FIG. 26 is a schematic perspective view showing an example of the fan 13 as viewed from the closed side of a cylindrical boss 130 with one end nearly closed. FIG. 27 is a schematic perspective view showing an example of the fan 13 as viewed from the open side of the boss 130. FIG. 28 is a schematic diagram showing an example of the fan 13 as viewed from the closed side of the boss 130 in a plan view. FIG. 29 is a schematic diagram showing an example of the fan 13 as viewed from the open side of the boss 130 in a plan view. FIG. 30 is a schematic diagram showing an example of the fan 13 shown in FIG. 28 as viewed from below in a plan view. FIG. 31 is a schematic diagram showing an example of the cross-sectional structure along arrow FF shown in FIG. 28.

[0148] The fan 13 rotates counterclockwise in a plan view from the closed side of the boss 130. The fan 13 rotates counterclockwise in a plan view from the front side (in other words, the intake side) when housed in the housing 12. The rotation direction R of the fan 13 is indicated by an arrow in Figures 28 and 29.

[0149] The multiple blades 131 included in the fan 13 have, for example, the same shape as each other. Each blade 131 has, for example, a curved plate shape. Each blade 131 has, for example, a pair of main surfaces 310 facing each other, a leading edge 330, a trailing edge 350, and an outer circumferential edge 370 connecting the leading edge 330 and the trailing edge 350. The pair of main surfaces 310 are, for example, curved surfaces. Each of the leading edge 330, the trailing edge 350, and the outer circumferential edge 370 has, for example, a curved shape. The leading edges 330 of the multiple blades 131 have, for example, the same shape as each other. The trailing edges 350 of the multiple blades 131 have, for example, the same shape as each other. The outer circumferential edges 370 of the multiple blades 131 have, for example, the same shape as each other.

[0150] As shown in Figures 28 and 29, the trailing edge 350 of each blade 131 has, when viewed in a plan view from a direction along the rotational axis direction of the fan 13 (also simply referred to as the rotational axis direction), a convex portion 350b and a concave portion 350a located further forward than the convex portion 350b.

[0151] 31 shows the shape of leading edge 330 of blade 131a when the leading edge 330 of blade 131a included in the plurality of blades 131 is viewed from the side in a specific direction perpendicular to the rotation axis direction. Hereinafter, a side view from a specific direction perpendicular to the rotation axis direction will be referred to as a specific direction side view.

[0152] FIG. 32 is a schematic diagram illustrating a side view in a specific direction. Similar to FIG. 28, FIG. 32 shows an example of a plan view of the fan 13 from the closed side of the boss 130. As shown in FIG. 32, in a plan view perpendicular to the rotation axis direction, consider first an imaginary line 990 extending from the center 130a of the fan 13 and passing through the center 330a of the leading edge 330 in the extension direction. In a plan view perpendicular to the rotation axis direction, the center 130a of the fan 13 can also be considered as the center of the boss 130. Furthermore, the center 330a of the leading edge 330 in the extension direction can also be considered as the center of the leading edge 330 in the direction following the curve of the leading edge 330. Next, in a plan view perpendicular to the rotation axis direction, consider an imaginary line 991 obtained by rotating the imaginary line 990 by 12.5 degrees toward the rotation direction R of the fan 13, with the center 130a of the fan 13 as a fulcrum. The direction in which the leading edge 330 is viewed from a direction perpendicular to the virtual straight line 991 and the rotation axis direction is defined as a specific direction 922, and the side view of the leading edge 330 viewed from the specific direction 992 is defined as a specific direction side view. The dashed dotted line representing the position of the cross section of arrow FF in FIG. 28 is parallel to the specific direction 992.

[0153] Fig. 33 is a schematic diagram showing an example of the shape of leading edge 330 of blade 131a when viewed from the side in a specific direction. In Fig. 33, a rotation axis direction 995 is indicated by an arrow. In Fig. 33, a direction 996 (also referred to as a lateral direction 996) perpendicular to rotation axis direction 995 and specific direction 992 is also indicated by an arrow.

[0154] 33, leading edge 330 has, for example, a first region 331 extending from root 330b toward tip 330c, and a second region 332 extending from first region 331 to tip 330c. Root 330b can also be said to be the end of leading edge 330 on the boss 130 side, and tip 330c can also be said to be the end of leading edge 330 opposite to the end on the boss 130 side.

[0155] In a side view in the specific direction, the first region 331 approaches the exhaust side of the fan 13 as it approaches the second region 332. On the other hand, in a side view in the specific direction, the second region 332 approaches the intake side of the fan 13 as it approaches the tip 330c. In a side view in the specific direction, the exhaust side of the fan 13 is the opening side of the boss 130, and the intake side of the fan 13 is the closing side of the boss 130.

[0156] In a side view in the specific direction, the tip 330c is located closer to the intake side of the fan 13 than the root 330b. Furthermore, in a side view in the specific direction, a boundary (also referred to as a boundary point) 330d between the first region 331 and the second region 332 is located closer to the root 330b than the tip 330c. In a side view in the specific direction, the distance along the lateral direction 996 between the boundary 330d and the root 330b is smaller than the distance along the lateral direction 996 between the boundary 330d and the tip 330c. Furthermore, in a side view in the specific direction, the boundary 330d is located closer to the root 330b than the center of the leading edge 330 in the lateral direction 996. In the lateral direction 996, the boundary 330d is located closer to the root 330b than the tip 330c.

[0157] The second region 332 has a third region 333 having a radius of curvature smaller than the radius of curvature of a boundary 330d between the first region 331 and the second region 332 when viewed from the side in a specific direction. Here, the phrase "the radius of curvature of a certain region is smaller than the radius of curvature of a certain point" means that the radius of curvature of each point in the region is smaller than the radius of curvature of the certain point. Therefore, the radius of curvature of each point in the third region 333 is smaller than the radius of curvature of the boundary 330d. The third region 333 may include multiple points with the same radius of curvature, or multiple points with different radii of curvature. The third region 333 curves significantly toward the intake side of the fan 13 from its end on the boundary 330d side to its end on the tip 330c side.

[0158] The third region 333 is, for example, a region that does not include the tip 330c. In a side view in the specific direction, the third region 333 is located closer to the tip 330c than the boundary 330d. That is, in a side view in the specific direction, the center of the third region 333 in the lateral direction 996 is located closer to the tip 330c than the boundary 330d. In a side view in the specific direction, the distance along the lateral direction 996 between the center of the third region 333 and the boundary 330d is greater than the distance along the lateral direction 996 between the center and the tip 330c.

[0159] The third region 333 includes a portion 335 (also referred to as the minimum curvature radius portion 335) at the leading edge 330 in a side view in a specific direction where the radius of curvature is the smallest. The minimum curvature radius portion 335 may be a wide region, as shown in Figure 33, or may be a single point with the smallest radius of curvature. In the former case, the radius of curvature at each point of the minimum curvature radius portion 335 is the same, and is the smallest radius of curvature.

[0160] Like FIG. 33 , FIG. 34 is a schematic diagram illustrating an example of the shape of leading edge 330 of blade 131a in a side view in a specific direction. As shown in FIG. 34 , consider an imaginary plane 999 that is perpendicular to rotation axis direction 995. In fan 13, in a side view in the specific direction, the inclination angle α of a tangent 997 drawn to tip 330c with respect to imaginary plane 999 is greater than the inclination angle β of a tangent 998 drawn to root 330b with respect to imaginary plane 999. The inclination angle α is the acute angle formed between imaginary plane 999 and tangent 997. Similarly, the inclination angle β is the acute angle formed between imaginary plane 999 and tangent 998.

[0161] In this way, at the leading edge 330 of the blade 131 of the fan 13, when viewed from the side in a specific direction, the first region 331 moves toward the exhaust side of the fan 13 as it approaches the second region 332, and the second region 332 moves toward the intake side of the fan 13 as it approaches the tip 330c, thereby improving the performance of the fan 13.

[0162] Fig. 35 is a schematic diagram showing fan 1400, which is an example of fan 13 with a modified blade shape. Fig. 35 shows fan 1400 as viewed from above in the direction of its rotation axis. Fig. 36 is a schematic diagram showing the cross-sectional structure taken along arrow HH in Fig. 35.

[0163] The fan 1400 includes a boss 1410 and a plurality of blades 1420 attached to the boss 1410. Each blade 1420 is a modified version of the blade 131 of the fan 13. The blades 1420 have the same shape. Each blade 1420 has a leading edge 1430, a trailing edge 1450, and an outer peripheral edge 1470 connecting the leading edge 1430 and the trailing edge 1450.

[0164] 36 shows the shape of a leading edge 1430 of a blade 1420a included in the plurality of blades 1420 as viewed from the side in a particular direction. The side view in a particular direction for the fan 1400 is defined in the same way as the side view in a particular direction for the fan 13. The side views in a particular direction for the fans 1300, 1500, and 1600, which will be described later, are also defined in the same way.

[0165] 36, like the leading edge 330 of the fan 13, the leading edge 1430 has a first region 1431 extending from the base toward the tip and a second region 1432 extending from the first region 1431 to the tip. When viewed from the side in a specific direction, the first region 1431 moves closer to the exhaust side of the fan 1400 as it approaches the second region 1432, and the second region 1432 moves closer to the intake side of the fan 1400 as it approaches the tip. When viewed from the side in a specific direction, the radius of curvature of each point in the second region 1432 is equal to or greater than the radius of curvature of the boundary between the first region 1431 and the second region 1432. The second region 1432 does not have a region corresponding to the third region 333. As shown in FIG. 35, the trailing edge 1450, like the trailing edge 350 of the fan 13, has, when viewed in a plan view from a direction along the rotational axis of the fan 1400, a convex portion 1450b and a concave portion 1450a located further forward than the convex portion 1450b.

[0166] Fig. 37 is a schematic diagram showing fan 1300, an example of fan 13 with a modified blade shape. The shape of the blades of fan 1300 is different from that of fan 1400. Fig. 37 shows fan 1300 as viewed from above in the direction of its rotation axis. Fig. 38 is a schematic diagram showing the cross-sectional structure along arrow GG shown in Fig. 37.

[0167] The fan 1300 includes a boss 1310 and a plurality of blades 1320 attached to the boss 1310. The blades 1320 have the same shape. Each blade 1320 has a leading edge 1330, a trailing edge 1350, and an outer peripheral edge 1370 connecting the leading edge 1330 and the trailing edge 1350.

[0168] Fig. 38 shows the shape of a leading edge 1330 of a blade 1320a included in the plurality of blades 1320 when viewed from the side in a particular direction. As shown in Fig. 38, the shape of the leading edge 1330 when viewed from the side in the particular direction is flat, unlike the shape of the leading edge 330 of the fan 13. As shown in Fig. 37, the trailing edge 1350, like the trailing edge 350 of the fan 13, has a convex portion 1350b and a concave portion 1350a located further forward than the convex portion 1350b when viewed from above in a direction along the rotational axis of the fan 1300.

[0169] FIG. 39 is a graph showing the performance of fan 1400 alone and the performance of fan 1300 alone. FIG. 39 shows the relationship between air volume and efficiency for each of fan 1400 and fan 1300. In FIG. 39, the horizontal axis represents the fan air volume, and the vertical axis represents the fan efficiency. Efficiency is the value obtained by dividing the fan's airflow output by the power supplied to the fan. The fan's airflow output is expressed as the product of pressure and flow rate. The power supplied to the fan is expressed as the product of torque and angular velocity. In FIG. 39, the relationship between air volume and efficiency for fan 1400 alone is expressed by curve G10, and the relationship between air volume and efficiency for fan 1300 alone is expressed by curve G11.

[0170] 39 , regardless of the air volume, the efficiency of fan 1400 is better than the efficiency of fan 1300. In other words, regardless of the air volume, the performance of fan 1400 is better than the performance of fan 1300. As with leading edge 1430 of fan 1400, at leading edge 330 of fan 13, in a side view in a specific direction, first region 331 moves closer to the exhaust side of fan 13 as it approaches second region 332, and second region 332 moves closer to the intake side of fan 13 as it approaches tip 330c, so similar to fan 1400, the performance of fan 13 can be improved.

[0171] Furthermore, in the fan 13, the second region 332 has a third region 333 that has a radius of curvature smaller than the radius of curvature of the boundary 330d between the first region 331 and the second region 332 when viewed from the side in a specific direction, thereby improving the performance of the fan 13.

[0172] FIG. 40 is a graph showing the relationship between air volume and efficiency for each of fan 13 and fan 1400. In FIG. 40, the horizontal axis represents fan air volume, and the vertical axis represents fan efficiency. In FIG. 40, the relationship between air volume and efficiency for fan 13 alone is represented by curve G1, and the relationship between air volume and efficiency for fan 1400 alone is represented by curve G10. As shown in FIG. 40, regardless of air volume, the efficiency of fan 13 having third region 333 is better than the efficiency of fan 1400 which does not have a region corresponding to third region 333.

[0173] Furthermore, in fan 13, when viewed from the side in a specific direction, the inclination angle α of a tangent 997 drawn to the tip 330c with respect to an imaginary plane 999 perpendicular to the rotation axis direction 995 is greater than the inclination angle β of a tangent 998 drawn to the base 330b with respect to the imaginary plane 999, thereby improving the performance of fan 13.

[0174] FIG. 41 is a schematic diagram showing fan 1500, an example of fan 13 with a modified blade shape. The blade shape of fan 1500 is different from that of fans 1300 and 1400. FIG. 41 shows fan 1500 as viewed from above in the direction of its rotation axis. FIG. 42 is a schematic diagram showing an example of the cross-sectional structure along arrow II shown in FIG. 41.

[0175] The fan 1500 includes a boss 1510 and a plurality of blades 1520 attached to the boss 1510. The blades 1520 have the same shape. Each blade 1520 has a leading edge 1530, a trailing edge 1550, and an outer peripheral edge 1570 connecting the leading edge 1530 and the trailing edge 1550.

[0176] FIG. 42 shows the shape of a leading edge 1530 of a blade 1520a included in the plurality of blades 1520, as viewed from the side in a particular direction. As shown in FIG. 42, the leading edge 1530, like the leading edge 330 of the fan 13, has a first region 1531 extending from the base toward the tip and a second region 1532 extending from the first region 1531 to the tip. As viewed from the side in a particular direction, the first region 1531 approaches the exhaust side of the fan 1500 as it approaches the second region 1532, and the second region 1532 approaches the intake side of the fan 1500 as it approaches the tip. Unlike the leading edge 330 of the blade 131 of the fan 13, as viewed from the side in a particular direction, the inclination angle of a tangent drawn to the tip, relative to an imaginary plane perpendicular to the rotational axis direction of the fan 1500, is smaller than the inclination angle of a tangent drawn to the base, relative to the imaginary plane. As shown in FIG. 41, the trailing edge 1550, like the trailing edge 350 of the fan 13, has, when viewed in a plan view from a direction along the rotational axis of the fan 1500, a convex portion 1550b and a concave portion 1550a located further forward than the convex portion 1550b.

[0177] FIG. 43 is a graph showing the relationship between air volume and efficiency for each of fan 13 and fan 1500. In FIG. 43, the horizontal axis represents fan air volume, and the vertical axis represents fan efficiency. In FIG. 43, the relationship between air volume and efficiency for fan 13 alone is represented by curve G1, and the relationship between air volume and efficiency for fan 1500 alone is represented by curve G13. As shown in FIG. 43, the efficiency of fan 13 is better than the efficiency of fan 1500, regardless of the air volume.

[0178] Furthermore, in the fan 13, the trailing edge 350 of the blade 131 has, when viewed in a plan view from a direction along the rotation axis direction 995, a convex portion 350b and a concave portion 350a located further forward than the convex portion 350b, thereby improving the performance of the fan 13.

[0179] Fig. 44 is a schematic diagram showing fan 1600, which is an example of fan 13 with a modified blade shape. The shape of the blades of fan 1600 is different from the shapes of the blades of fans 1300, 1400, and 1500. Fig. 44 shows fan 1600 as viewed from above in the direction of its rotation axis.

[0180] Fan 1600 includes a boss 1610 and a plurality of blades 1620 attached to boss 1610. The plurality of blades 1620 have the same shape. Each blade 1620 has a leading edge 1630, a trailing edge 1650, and an outer peripheral edge 1670 connecting leading edge 1630 and trailing edge 1650. As shown in FIG. 44 , unlike trailing edge 350, trailing edge 1650 has a convex portion 1650b in a plan view from the direction along the rotational axis of fan 1600, but does not have a concave portion further forward than convex portion 1650b.

[0181] FIG. 45 is a graph showing the relationship between air volume and efficiency for each of fan 13 and fan 1600. In FIG. 45, the horizontal axis represents fan air volume, and the vertical axis represents fan efficiency. In FIG. 45, the relationship between air volume and efficiency for fan 13 alone is represented by curve G1, and the relationship between air volume and efficiency for fan 1600 alone is represented by curve G14. As shown in FIG. 45, when the air volume increases to a certain extent, the efficiency of fan 13 becomes better than the efficiency of fan 1600. Therefore, when fan 13 is used with the air volume set to a certain extent, the performance of fan 13 is better than the performance of fan 1600.

[0182] In the above example, the plurality of blades 131 have the same shape, but some of the plurality of blades 131 may have shapes different from each other. For example, the plurality of blades 131 may include a blade 131 whose trailing edge 350 does not have a recess 350a. The plurality of blades 131 may also include a blade 131 whose leading edge 330 has a shape different from that shown in FIG. 33 when viewed from the side in a specific direction. For example, the plurality of blades 131 may include a blade 131 having a leading edge 330 with the same shape as the leading edge 1330 of the blade 1320 of the fan 1300, a blade 131 having a leading edge 330 with the same shape as the leading edge 1430 of the blade 1420 of the fan 1400, or a blade 131 having a leading edge 330 with the same shape as the leading edge 1530 of the blade 1520 of the fan 1500.

[0183] <Example of rib structure on the rear side of the housing> Figure 46 is a schematic diagram showing an example of the cross-sectional structure of the housing rear portion 60 taken along line AA in Figure 5. Figure 47 is a schematic diagram showing an example of the cross-sectional structure of the housing rear portion 60 taken along line BB in Figure 5. Figure 48 is a schematic diagram showing an example of the cross-sectional structure of the housing rear portion 60 taken along line CC in Figure 5. Figure 49 is a schematic diagram showing an example of the cross-sectional structure of the housing rear portion 60 taken along line DD in Figure 5.

[0184] 46 to 49 show cross-sectional views of radial ribs 64a included in the plurality of radial ribs 64 formed on the rear surface portion 40, viewed in a direction D1 (also referred to as a specific direction D1) from the inside to the outside in the radial direction. In Figures 46 to 49, the direction from the front of the page to the back of the page is the specific direction D1 of the radial ribs 64a. The specific direction D1 can also be said to be a direction from the inside to the outside of the rear surface portion 40 along the radial direction of the rear surface portion 40.

[0185] The radial ribs 64a are inclined ribs 64a having inclined portions inclined clockwise with respect to the rotation axis direction of the fan 13 (the up-and-down direction in FIGS. 46 to 49) when viewed in cross section from the specific direction D1. For example, the entire area of ​​the radial ribs 64a has inclined portions inclined clockwise with respect to the rotation axis direction of the fan 13 (in other words, the front-to-rear direction of the fan device 10) when viewed in cross section from the specific direction D1.

[0186] The inclined portion of the inclined rib 64a has an inclination change portion where the inclination angle with respect to the rotation axis direction of the fan 13 decreases from the inside to the outside in the radial direction. Figures 46 to 49 show an example of the cross-sectional structure of the inclination change portion. The inclination angle of the inclination change portion with respect to the rotation axis direction of the fan 13 decreases from Figure 46 to Figure 49. In the inclined rib 64a, for example, the inclination change portion extends from the housing portion 70 to the vicinity of the outer circumferential rib 63. In the fan device 10, for example, each of the multiple radial ribs 64 is an inclined rib 64 having an inclined portion including an inclination change portion.

[0187] Thus, the inclined rib 64 has an inclined portion that is inclined clockwise with respect to the rotational axis direction of the fan 13 when viewed in cross section from the specific direction D1. The inclined portion also has an inclination changing portion where the angle of inclination with respect to the rotational axis direction of the fan 13 decreases from the inside to the outside in the radial direction. This makes it less likely that the inclined rib 64 will obstruct the flow of air. As a result, the performance of the fan device 10 is improved.

[0188] 50 to 54 are schematic diagrams showing an example of wind velocity vectors generated by the rotation of the fan 13. The upper diagrams in FIGS. 50 to 54 are diagrams showing an example of wind velocity vectors around the inclined ribs 64. The lower diagrams in FIGS. 50 to 54 are diagrams showing an example of wind velocity vectors around the inclined ribs 6410 when the inclined ribs 6410 (also referred to as radial ribs 6410) are used in place of the inclined ribs 64 in the fan device 10. The inclined ribs 6410 have inclined portions that are inclined clockwise with respect to the direction of the rotation axis of the fan 13 in a cross-sectional view from a specific direction D1. Unlike the inclined portions of the inclined ribs 64, the inclination angle of the inclined portions of the inclined ribs 6410 is constant.

[0189] The upper views of Figures 50 to 54 show the cross-sectional structure of the inclined ribs 64 as viewed from the opposite direction of the specific direction D1, developed on a plane. Similarly, the lower views of Figures 50 to 54 show the cross-sectional structure of the inclined ribs 6410 as viewed from the opposite direction of the specific direction D1, developed on a plane. Figure 50 shows the wind speed vector at a position corresponding to the cross-sectional position of the cross-section taken along arrow AA in Figure 5. Figure 51 shows partially enlarged views of the upper and lower views of Figure 50. Figure 52 shows the wind speed vector at a position corresponding to the cross-sectional position of the cross-section taken along arrow BB in Figure 5. Figure 53 shows the wind speed vector at a position corresponding to the cross-sectional position of the cross-section taken along arrow CC in Figure 5. Figure 54 shows the wind speed vector at a position corresponding to the cross-sectional position of the cross-section taken along arrow DD in Figure 5. Hereinafter, a fan device 10 having radial ribs 6410 instead of radial ribs 64 will be referred to as a comparative fan device.

[0190] In the comparative fan device, the inclination angle of the inclined portions of the inclined rib 6410 is constant, so the inclined portions are not inclined according to the wind flow, and the inclined rib 6500 is likely to obstruct the wind flow. In particular, the inclined rib 6410 is likely to obstruct the wind flow on the inner side in the radial direction. In the lower diagram of FIG. 51, wind separation (i.e., turbulence in the wind flow) occurs in the area surrounded by the circle C1.

[0191] On the other hand, in the fan device 10, the inclined portions of the inclined ribs 64 have inclination change portions where the inclination angle with respect to the rotation axis direction decreases from the inside to the outside in the radial direction, making the inclined ribs 64 less likely to obstruct the flow of air. In other words, since the inclined portions of the inclined ribs 64 have inclination change portions, the inclined portions incline according to the flow of air, making the inclined ribs 64 less likely to obstruct the flow of air. In particular, the inclined ribs 64 are less likely to obstruct the flow of air on the inside in the radial direction. Looking at the upper diagram in Figure 51, it can be seen that no separation of air occurs around the inclined ribs 64.

[0192] Note that only a portion of the multiple radial ribs 64 may be inclined ribs 64. In other words, only a portion of the multiple radial ribs 64 may have an inclined portion that is inclined clockwise with respect to the rotational axis direction of the fan 13 when viewed in a cross-section from the specific direction D1. Also, only a portion of the radial ribs 64, rather than the entire region of the radial ribs 64, may have an inclined portion that is inclined clockwise with respect to the rotational axis direction of the fan 13 when viewed in a cross-section from the specific direction D1. Also, not only a portion of the inclined ribs 64, but the entire region of the inclined ribs 64 may have an inclined portion that changes in inclination. Also, the multiple radial ribs 64 may include radial ribs 64 having a shape similar to the inclined rib 6410 of the comparative fan device. Also, the multiple radial ribs 64 may include radial ribs that are not inclined with respect to the rotational axis direction of the fan 13 when viewed in a cross-section from the specific direction D1.

[0193] Figure 55 is a schematic diagram mainly showing an example of the housing rear portion 60 of the housing main body 20 as seen from below. Figure 56 is a schematic diagram showing an example of the cross-sectional structure along arrow JJ in Figure 55. As described above, the housing rear portion 60 is made up of the rear portion 50A of the peripheral wall portion 50 and the rear surface portion 40 connected to the rear portion 50A.

[0194] The housing rear portion 60 is provided with a rib structure 62. The rib structure 62 includes a plurality of ribs 66 that are positioned from the outer circumferential rib 63 to the rear portion 50A of the peripheral wall portion 50. Each rib 66 extends from the outer circumferential rib 63 to reach the front portion 50B of the peripheral wall portion 50. Each circumferential rib 63 is positioned along the rotational axis of the fan 13.

[0195] In a plan view along the rotational axis direction of the fan 13, the multiple ribs 66 each have multiple radial portions 661 extending radially from the outer circumferential rib 63. Each rib 66 also has a peripheral portion 662 that curves forward from the radial portion 661 and reaches the front portion 50B of the peripheral wall portion 50. Each rib 66 has the radial portion 661 and the peripheral portion 662 that is located from the radial portion 661 to the peripheral wall portion 50.

[0196] 56, the cross section of the end 663 of the rib 66 on the front portion 50B side is shown by diagonal lines. In other words, in FIG. 56, the cross section of the end 663 of the rib 66 on the opposite side to the circumferential rib 63 side is shown by diagonal lines. The end 663 is included in the peripheral edge portion 662. The end 663 of each rib 66 is located in the peripheral wall portion 50. In other words, the end 663 of each rib 66 is included in the peripheral wall portion 50.

[0197] As shown in FIGS. 5 and 7 , in a plan view along the rotation axis direction, the rib 66 curves from the outer circumferential rib 63 to the peripheral wall 50 in the rotation direction of the fan 13, and then curves in the opposite direction to the rotation direction. As a result, as shown in FIG. 56 , at the end 663 of the rib 66, the dimension S1 along the circumferential direction of the circumferential rib 63 is approximately the same as the dimension S2 along the radial direction of the radial portion 661 of the rib 66. The dimension S1 may be the same as or smaller than the dimension S2. Furthermore, in a plan view along the rotation axis direction, the ribs 67 and 69 connected to the rib 65 curve from the rib 65 to the peripheral wall 50 in the rotation direction of the fan 13, and then curve in the opposite direction to the rotation direction. The shape of the end of the ribs 67 and 69 on the front portion 50B side is the same as the shape of the end 663 of the rib 66.

[0198] Thus, in a plan view along the rotation axis direction, the ribs 66 curve from the outer circumferential rib 63 to the peripheral wall portion 50 in the rotation direction of the fan 13, and then curve in the opposite direction to the rotation direction. This makes it possible to increase the gap between two adjacent ribs 66 on the peripheral wall portion 500. This makes it easier for air to pass between the ribs 66, improving the performance of the fan device 10.

[0199] Figure 57 is a schematic diagram showing a comparative rib structure 6200 that is compared to rib structure 62. Figure 57 mainly shows an example of a state in which a housing rear portion 60 that includes the comparative rib structure 6200 instead of rib structure 62 is viewed from the bottom. Figure 58 is a schematic diagram showing a cross-sectional structure along arrow KK in Figure 57.

[0200] The comparative rib structure 6200 includes a circumferential rib 6300 instead of the circumferential rib 63, a radial rib 6400 instead of the radial rib 64, and ribs 6500, 6600, 6700, 6800, and 6900 instead of the ribs 65, 66, 67, 68, and 69, respectively.

[0201] In a plan view along the rotational axis direction of the fan 13, the multiple ribs 6600 each have multiple radial portions 6610 extending radially from the outer circumferential rib 6300. Each rib 6600 also has a peripheral portion 6620 that curves forward from the radial portion 6610 and reaches the front portion 50B of the peripheral wall portion 50. In FIG. 58 , a cross section of an end portion 6630 of the rib 6600 on the side opposite to the circumferential rib 6300 is shown by diagonal lines. The end portion 6630 is included in the peripheral portion 6620.

[0202] In the comparative rib structure 6200, in a plan view along the rotation axis direction, the ribs 6600 only curve in the rotation direction of the fan 13 from the outer circumferential rib 6300 to the peripheral wall portion 50, but do not curve in the opposite direction to the rotation direction. Therefore, as shown in FIG. 58 , at the end portion 6630 of the rib 6600, the dimension S10 along the circumferential direction of the circumferential rib 6300 is significantly larger than the dimension S20 along the radial direction of the radial portion 6610 of the rib 6600. As a result, the gap between two adjacent ribs 6600 on the peripheral wall portion 500 becomes smaller, making it difficult for air to pass between the ribs 6600.

[0203] 55 and 56, the gap between two adjacent ribs 66 in the peripheral wall portion 500 can be increased, which makes it easier for air to pass between the ribs 66. This improves the efficiency of the fan device 10.

[0204] Note that the shapes of some of the ribs 66 may be different from each other. For example, the ribs 66 may include a rib 66 having an end 663 in which the dimension S1 is greater than the dimension S2. Furthermore, at least one of the ribs 67 and 68 may have a shape different from that of the rib 66.

[0205] As described above, the fan-equipped garment 1 and the fan device 10 have been described in detail, but the above description is merely illustrative in all respects and does not limit the scope of this disclosure. Furthermore, the various examples described above can be combined and applied as long as they are not mutually inconsistent. It is understood that countless examples not illustrated can be envisioned without departing from the scope of this disclosure. [Explanation of symbols]

[0206] 1. Fan-powered clothing 2 Clothes 7b Mating connector 10. Fan device for clothing 12 Housing 13 Fan 14 Motor 15 Connectors 16 Waterproofing materials 45,150 slots 63 Circumferential rib 64 Radial rib (inclined rib) 64a Inclined Rib 66 Ribs 70 Storage section 71 Aperture 72 Motor housing 76 Connector housing 80 Lid member 86,400 storage area 131 Feather 160 Lid 160e Knob 180 Elastic seal part 181 First seal part 182 Second seal part 185 Elastic holding part 188 Connection section 330 leading edge 330a tip 330b root 330c boundary 331 First area 332 Second area 333 Third area 335 Minimum radius of curvature 350 trailing edge 350a recess 350b convex part 661 Radial part 663 End

Claims

1. A fan device for clothing that is attached to clothing, a fan, a motor that rotates the fan, and a housing that houses the fan and the motor are provided, the fan has a plurality of blades, a leading edge of a certain blade included in the plurality of blades has a first region extending from the root to the tip side and a second region extending from the first region to the tip, in a side view of the leading edge from a direction perpendicular to the rotational axis direction of the fan, the first region faces the exhaust side of the fan as it approaches the second region, the second region faces the intake side of the fan as it approaches the tip, a fan device for clothing.

2. The fan device for clothing according to Claim 1, wherein, in the side view, the boundary between the first region and the second region is located closer to the root than the tip, a fan device for clothing.

3. The fan device for clothing according to Claim 1 or Claim 2, wherein the second region has a third region having a radius of curvature smaller than the radius of curvature of the boundary between the first region and the second region in the side view, a fan device for clothing.

4. The fan device for clothing according to Claim 3, wherein, in the side view, the third region is located closer to the tip than the boundary, a fan device for clothing.

5. The fan device for clothing according to Claim 3 or Claim 4, wherein the third region includes a portion having the smallest radius of curvature at the leading edge in the side view, a fan device for clothing.

6. The fan device for clothing according to any one of Claims 1 to 5, wherein, in the side view, the inclination angle of the tangent drawn to the tip with respect to a virtual plane orthogonal to the rotational axis direction is larger than the inclination angle of the tangent drawn to the root with respect to the virtual plane, a fan device for clothing.

7. The fan device for clothing according to Claim 6, wherein, in the side view, the tip is located closer to the intake side than the root, a fan device for clothing.

8. The fan device for clothing according to any one of Claims 1 to 7, wherein a trailing edge of the certain blade has a convex portion and a concave portion located on the tip side of the convex portion in a plan view from a direction along the rotational axis direction, a fan device for clothing.

9. The fan device for clothing according to any one of Claims 1 to 8, a connector housed in the housing, A waterproof member having a lid portion capable of closing a first insertion port into which a mating connector connected to the connector provided in the fan device for clothing is inserted, and comprising the housing has a storage portion capable of storing at least a part of the waterproof member, a fan device for clothing.

10. The fan device for clothing according to claim 9, wherein the first insertion port is provided in the housing, a fan device for clothing.

11. The fan device for clothing according to claim 10, wherein the connector has a second insertion port into which the mating connector is inserted, and the lid portion is capable of closing the first insertion port and the second insertion port, a fan device for clothing.

12. The fan device for clothing according to claim 9, wherein the first insertion port is provided in the connector, a fan device for clothing.

13. The fan device for clothing according to any one of claims 9 to 12, wherein the waterproof member has a connecting portion connected to the housing, a fan device for clothing.

14. The fan device for clothing according to claim 13, wherein the connecting portion is rotatable with respect to the housing, a fan device for clothing.

15. The fan device for clothing according to any one of claims 9 to 14, wherein the waterproof member has a grip portion, a fan device for clothing.

16. The fan device for clothing according to claim 15, wherein the lid portion has the grip portion, a fan device for clothing.

17. The fan device for clothing according to claim 16, wherein the storage portion is capable of storing at least the lid portion of the waterproof member, a fan device for clothing.

18. The fan device for clothing according to any one of claims 9 to 17, wherein the housing has a storage portion that houses the motor and the connector and has an opening that opens on the surface of the housing, and a lid member that covers the opening and the storage portion is provided in the lid member, a fan device for clothing.

19. The fan device for clothing according to any one of claims 1 to 18, wherein the housing has a storage portion that houses the motor and the connector and has an opening that opens on the surface of the housing, and a lid member that covers the opening and is provided with an elastic seal portion that seals between the lid member and the storage portion, a fan device for clothing.

20. The clothing fan device according to claim 19, wherein the elastic seal part presses the connector, the clothing fan device.

21. The clothing fan device according to claim 19 or claim 20, wherein the accommodating part has a motor accommodating part for accommodating the motor and a connector accommodating part for accommodating the connector, and the elastic seal part has a first seal part for sealing between the lid member and the motor accommodating part and a second seal part for sealing between the lid member and the connector accommodating part, and the second seal part is located across the connector accommodating part and the connector, and has an overlapping part thicker than the first seal part, the clothing fan device.

22. The clothing fan device according to any one of claims 19 to 21, wherein it is provided with an elastic pressing part located on the back side of the lid member and pressing the motor, the clothing fan device.

23. The clothing fan device according to claim 22, wherein it is provided with a connecting part connecting the elastic seal part and the elastic pressing part, and the elastic seal part, the elastic pressing part and the connecting part are integrally formed, the clothing fan device.

24. The clothing fan device according to claim 23, wherein the elastic seal part, the elastic pressing part, the connecting part and the lid member are integrally formed, the clothing fan device.

25. The clothing fan device according to any one of claims 1 to 24, wherein the housing has a plurality of exhaust ports and a rib structure defining the plurality of exhaust ports, the rib structure has a plurality of ribs extending radially in a plan view from a direction along the rotation axis direction of the fan, the plurality of ribs include inclined ribs having an inclined part inclined clockwise with respect to the rotation axis direction in a cross-sectional view from a direction from the inside to the outside of the fan, and the inclined part has an inclined change part in which the inclination angle with respect to the rotation axis direction becomes smaller as it goes from the inside to the outside of the fan, the clothing fan device.

26. The clothing fan device according to any one of claims 1 to 24, wherein the housing has a plurality of exhaust ports and a rib structure defining the plurality of exhaust ports, the rib structure has a first rib located along the circumference of the rotation axis direction of the fan and a plurality of second ribs located from the first rib to the peripheral wall part of the rib structure, and In a plan view along the direction of the rotation axis, a certain second rib included in the plurality of second ribs curves in the rotation direction of the fan from the first rib to the peripheral wall portion and then curves in a direction opposite to the rotation direction, a fan device for clothing.

27. Clothing, The fan device for clothing according to any one of claims 1 to 26, attached to the clothing, and A clothing with a fan comprising the same.

Images