Cold air generator

Abstract

To provide a technique capable of improving cooling efficiency of a cold air generator.SOLUTION: A cold air generator for generating cold air flowing in clothes includes a heat absorption / generation part having a heat absorption surface and a heat generation surface, a first heat transfer member provided on the heat absorption surface, and a second heat transfer member provided on the heat generation surface. The cold air generator includes a first fan configured to cause first air to flow toward the first heat transfer member, a second fan configured to cause second air to flow toward the second heat transfer member, a first air outlet configured to discharge the first air from which heat has been absorbed by the first heat transfer member out of the cold air generator, and a second air outlet configured to discharge the second air from which heat has been absorbed by the second heat transfer member out of the cold air generator. The first air discharged from the first air outlet is used as cold air. An opening area of the second exhaust port is larger than an opening area of the first exhaust port.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present disclosure relates to a cool air generating device. [Background technology]

[0002] Patent Document 1 discloses a technology relating to a heat exchange unit for cooling or heating the body of a person wearing clothing, while Patent Documents 2 and 3 disclose technologies relating to a fan that is attached to a mounting hole provided in clothing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-97799 [Patent Document 2] International Publication No. 2007 / 061088 [Patent Document 3] Japanese Patent Application Publication No. 2019-49209 Summary of the Invention [Problem to be solved by the invention]

[0004] There is room for improvement in cool air generators that cool air to flow inside clothes, such as the heat exchange unit described in Patent Document 1. [Means for solving the problem]

[0005] A cool air generator is disclosed. In one embodiment, the cool air generator generates cool air that flows inside clothing. The cool air generator includes a heat absorption and heat generation section having a heat absorption surface and a heat generation surface, a first heat transfer member provided on the heat absorption surface, and a second heat transfer member provided on the heat generation surface. The cool air generator includes a first fan that flows first air toward the first heat transfer member, a second fan that flows second air toward the second heat transfer member, a first exhaust port that discharges the first air, whose heat has been absorbed by the first heat transfer member, to the outside of the cool air generator, and a second exhaust port that discharges the second air, whose heat has been absorbed by the second heat transfer member, to the outside of the cool air generator. The first air discharged from the first exhaust port is used as cool air. The opening area of ​​the second exhaust port is larger than the opening area of ​​the first exhaust port. [Effects of the Invention]

[0006] The cooling efficiency of the cold air generator can be improved. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 2] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 3] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 4] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 5] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 6] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 7] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 8] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 9] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 10] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 11] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 12]FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 13] FIG. 2 is a schematic diagram showing an example of a cold air generating device. [Figure 14] FIG. 2 is a schematic diagram showing an example of a cold air generating device. DETAILED DESCRIPTION OF THE INVENTION

[0008] 1 to 9 are schematic diagrams showing an example of a cool air generator 1. The cool air generator 1 is capable of generating cool air that flows inside clothing. The cool air generated by the cool air generator 1 flows inside the clothing and cools the wearer of the clothing.

[0009] The cool air generator 1, for example, takes in air from outside the cool air generator 1 and cools the taken-in air. Then, the cool air generator 1 discharges the cooled air to the outside of the cool air generator 1. The air discharged from the cool air generator 1 flows inside the clothes as cool air.

[0010] FIG. 1 shows an example of the cold air generator 1 as viewed obliquely from the air intake side, i.e., the intake side. FIG. 2 shows an example of the cold air generator 1 as viewed obliquely from the air exhaust side, i.e., the exhaust side. FIG. 3 shows the cold air generator 1 with the intake side and exhaust side on the left and right sides, respectively. FIG. 4 shows an example of the cold air generator 1 shown in FIG. 3 as viewed from the left side. FIG. 5 shows an example of the cold air generator 1 shown in FIG. 3 as viewed from the right side. FIG. 6 shows an example of the cold air generator 1 shown in FIG. 3 as viewed from the top. FIG. 7 shows an example of the cold air generator 1 shown in FIG. 3 as viewed from the bottom. FIG. 8 shows an example of a cross-sectional structure taken along the arrow AA in FIG. 6. FIG. 9 shows an example of a cross-sectional structure taken along the arrow BB in FIG. 6.

[0011] The cool air generator 1 is used by being attached to, for example, clothing 1000. The clothing 1000 may be, for example, a jacket, pants, or other clothing.

[0012] 10 and 11 are schematic diagrams showing an example of how the cool air generator 1 is attached to the clothing 1000. FIG. 10 shows an example of how the cool air generator 1 attached to the clothing 1000 looks from the outside of the clothing 1000. FIG. 11 shows an example of how the cool air generator 1 attached to the clothing 1000 looks from the inside of the clothing 1000. FIG. 8 shows not only the cool air generator 1 but also a cross section of the clothing 1000 to which the cool air generator 1 is attached. When the cool air generator 1 is attached to the clothing 1000, for example, most of the cool air generator 1 is located on the outside of the clothing 1000.

[0013] The cool air generator 1 is attached to, for example, a mounting hole 1100 (see FIGS. 8 and 11) provided in the fabric of the garment 1000. The mounting hole 1100 is, for example, circular. The cool air generator 1 is attached to the mounting hole 1100 so that the exhaust port 90 (see FIG. 11) that discharges cool air to the outside of the cool air generator 1 is located inside the garment 1000. The cool air generator 1 attached to the fabric of the mounting hole 1100 takes in air from outside the garment 1000 and cools the air. The cool air generator 1 then discharges the cooled air into the garment 1000 through the mounting hole 1100. The cool air discharged from the exhaust port 90 of the cool air generator 1 circulates inside the garment 1000 and is then discharged to the outside of the garment 1000 through an opening (e.g., the neckline) provided in the garment 1000. This cools the body of the wearer of the garment 1000. A method for attaching the cool air generator 1 to the clothing 1000 will be described in detail later.

[0014] <Example of cold air generator configuration> The cool air generator 1 includes, for example, a device main body 2 that takes in air, cools the air, and discharges it, and an attachment member 900 for attaching the device main body 2 to clothing 1000. The attachment member 900 is, for example, detachable from the device main body 2. FIGS. 1 and 2 show an example of the attachment member 900 being detached from the device main body 2. FIGS. 3 to 11 show an example of the attachment member 900 being attached to the device main body 2. Note that once attached to the device main body 2, the attachment member 900 does not have to be detachable from the device main body 2. Hereinafter, the front side, rear side, right side, left side, top side, and bottom side of the cool air generator 1 shown in FIG. 4 will be referred to as the front side, rear side, right side, left side, top side, and bottom side of the cool air generator 1, respectively.

[0015] <Example of mounting component configuration> The mounting member 900 is, for example, an annular member. The mounting member 900 includes an annular mounting portion 910 that is attached to the device main body 2, and an annular flange portion 920 that is connected to the mounting portion 910. The flange portion 920 surrounds the outer peripheral surface of the mounting portion 910 and protrudes from the outer peripheral surface in the radial direction of the mounting member 900. The flange portion 920 is located on the periphery of one opening of the annular mounting portion 910. A screw portion 911 is provided on the outer peripheral surface of the mounting portion 910 to mount the mounting portion 910 to the device main body 2.

[0016] <Example of device configuration> The device main body 2 includes, for example, a fan 3 (also referred to as the first fan 3), a main flow path body 4 through which the air sent by the fan 3 flows, a first cooling section 5 that cools the air flowing through the main flow path body 4, a second cooling section 10 that cools the heat-generating parts of the first cooling section 5, and a holding section 20 that holds the main flow path body 4 and the second cooling section 10.

[0017] <Configuration example of first fan, main body flow path body, and first cooling unit> The first fan 3 takes in air from one side and expels it to the other side. Hereinafter, the air taken in by the fan 3 will be referred to as the first air.

[0018] The main flow path body 4 is a hollow member that extends, for example, in the front-to-rear direction. The front and rear ends of the main flow path body 4 are open. A fan 3 is attached to the front end of the main flow path body 4, and an attachment member 900 is attached to the rear end of the main flow path body 4. The main flow path body 4 can also be referred to as, for example, a duct.

[0019] The first air discharged by the fan 3 flows through the main flow path body 4. Specifically, the first air flows through the space inside the main flow path body 4. The space inside the main flow path body 4 can also be said to be a flow path through which the first air flows. The first cooling section 5 cools the first air flowing through the main flow path body 4. The first air cooled by the first cooling section 5 is discharged from the exhaust port 90 as cool air and flows inside the garment 1000. Arrow 811 shown in Figures 3, 6, 7, 8, etc. indicates the direction in which the first air flows.

[0020] The fan 3 is, for example, a propeller fan. The fan 3 includes, for example, an impeller 30, a motor 31 that rotates the impeller 30, and a case 32 that houses the impeller 30 and the motor 31. The fan 3 rotates when the impeller 30 rotates. The fan 3 is attached to the main flow path body 4 by attaching the case 32 to the main flow path body 4.

[0021] The case 32 has, for example, a generally low cylindrical shape. An air intake port 33 that takes air into the case 32 is provided on one bottom surface of the generally cylindrical case 32. The air intake port 33 has, for example, a circular outer shape. The air intake port 33 is divided, for example, by ribs and is composed of multiple openings. The case 32 has an annular flange portion 34 that surrounds the air intake port 33. The flange portion 34 protrudes in the radial direction of the air intake port 33.

[0022] An exhaust port 35 (see FIG. 8) is provided on the other bottom surface of the case 32 to exhaust air taken into the case 32 to the outside of the case 32. The exhaust port 35 is divided by ribs, for example, and is composed of a plurality of openings. A screw portion 36 (see FIG. 8) is provided on the side surface of the case 32 to attach the case 32 to the main flow path body 4.

[0023] As shown in Figure 4, when the fan 3 is viewed from above from the intake port 33 side, the outer shape of the case 32 is approximately circular. When the fan 3 is viewed from above from the exhaust port 35 side, the outer shape of the case 32 is approximately circular. The opening at the front end of the main flow path body 4 is circular. The opening at the rear end of the main flow path body 4 is circular (see Figure 2).

[0024] The fan 3 is, for example, detachable from the main flow path body 4. This allows the fan 3 to be used independently, improving the convenience of the cool air generator 1. The case 32 and the main flow path body 4 are connected by, for example, screws. A threaded portion 4a (see FIG. 8) that screws into the threaded portion 36 of the case 32 is provided on the inner surface of the front end of the main flow path body 4.

[0025] When the fan 3 is attached to the main flow path body 4, the case 32 is inserted into the main flow path body 4 from the opening at the front end of the main flow path body 4. At this time, the case 32 is inserted into the main flow path body 4 from the exhaust port 35 side. Then, the threaded portion 36 on the side of the case 32 and the threaded portion 4a on the inner surface of the main flow path body 4 are screwed together, and the case 32 is fixed to the main flow path body 4.

[0026] On the other hand, when the fan 3 is removed from the main flow path body 4, the screw connection between the case 32 and the main flow path body 4 is released, and the case 32 is taken out from the main flow path body 4.

[0027] The case 32 is fixed to the main flow path body 4, for example, so that the exhaust port 35 is located inside the main flow path body 4 and the intake port 33 and flange portion 34 are located outside the main flow path body 4. Most of the case 32 is located inside the main flow path body 4. The intake port 33 faces the front, and the exhaust port 35 faces the rear. The fan 3 takes in the first air into the case 32 through the intake port 33 on the front side and discharges it from the exhaust port 35 on the rear side. The first air discharged from the exhaust port 35 flows through the main flow path body 4 and is cooled by the first cooling section 5.

[0028] The direction in which the fan 3 is fixed to the main flow path body 4 is not limited to the above. The fan 3 may be non-detachable from the main flow path body 4. The fan 3 may be a fan other than a propeller fan.

[0029] The first cooling section 5 includes, for example, a heat absorbing section 6 and a heat transfer member 7 (see, for example, Figures 8 and 9). The heat absorbing section 6 has a heat absorbing surface 60 that absorbs heat and a heat generating surface 61 that emits heat. The heat absorbing section 6 is, for example, a Peltier element. A Peltier element is a semiconductor element that utilizes the Peltier effect. The heat absorbing section 6 is, for example, arranged so that the heat absorbing surface 60 and the heat generating surface 61 are located on the upper and lower sides, respectively.

[0030] The heat transfer member 7 (also referred to as the first heat transfer member 7) is provided on the heat absorption surface 60. The heat transfer member 7 is provided inside the main flow path body 4. The heat of the heat transfer member 7 is absorbed by the heat absorption surface 60. As a result, the heat transfer member 7 is cooled by the heat absorption surface 60. The heat transfer member 7 is made of, for example, a metal with high thermal conductivity, and is also called a heat sink. The heat transfer member 7 may be made of aluminum, copper, or other metals. The heat transfer member 7 is attached to the heat absorption surface 60 by, for example, a thermally conductive adhesive. The thermally conductive adhesive may be made of metal, thermally conductive grease, thermally conductive adhesive, or other materials.

[0031] The heat transfer member 7 includes, for example, a rectangular plate-like base plate 70 extending in the front-rear and left-right directions, and a plurality of fins 71 erected on the upper surface of the base plate 70. The fins 71 are, for example, rod-shaped. The plurality of rod-shaped fins 71 are, for example, arranged in a matrix on the base plate 70. The heat absorption surface 60 is fixed to the lower surface of the base plate 70 with a thermally conductive adhesive. The plurality of fins 71 protrude upward from the base plate 70. The fins 71 extend in a direction perpendicular to the heat absorption surface 60.

[0032] However, the structure of the heat transfer member 7 is not limited to this. For example, the multiple fins 71 may be arranged in a ring shape (e.g., annular) instead of in a matrix. Also, the multiple plate-shaped fins 71 may be arranged in a line on the base plate 70.

[0033] The fan 3, for example, takes in air from outside the cool air generator 1 and flows the taken-in air toward the heat transfer member 7. The first air discharged by the fan 3 is cooled by hitting the heat transfer member 7. When the first air hits the heat transfer member 7, the heat of the first air is absorbed by the heat transfer member 7 cooled by the heat absorption and heat generation section 6, and the first air is cooled. The first air hits the upper surface of the base plate 70 and each of the fins 71. The first air that hits the heat transfer member 7 is discharged from the cool air generator 1 and flows through the garment 1000 as cool air.

[0034] The mounting member 900 is detachably attached to, for example, the main flow path body 4. The mounting member 900 and the main flow path body 4 are connected by screws, for example. A threaded portion 4b (see FIGS. 2 and 8) that screws into a threaded portion 911 of a mounting portion 910 of the mounting member 900 is provided on the inner surface of the rear end of the main flow path body 4. As shown in FIG. 8, the threaded portion 4b of the main flow path body 4 screws into the threaded portion 911 of the mounting member 900, thereby mounting the mounting member 900 to the rear end of the main flow path body 4. The mounting member 900 can be removed from the rear end of the main flow path body 4 by releasing the threaded connection between the mounting portion 910 and the main flow path body 4. A flange portion 4c that surrounds the rear opening is provided on the outer peripheral surface of the rear end of the main flow path body 4.

[0035] When the cool air generator 1 is attached to the mounting hole 1100 of the garment 1000, the mounting portion 910 of the mounting member 900 is first inserted into the mounting hole 1100 from the inside of the garment 1000, so that most of the mounting portion 910 is positioned on the outside of the garment 1000. At this time, the flange portion 920 of the mounting member 900 abuts against the inner surface of the periphery of the mounting hole 1100 of the garment 1000 without passing through the mounting hole 1100. The threaded portion 911 of the mounting portion 910 is positioned on the outside of the garment 1000.

[0036] Next, the threaded portion 911 located on the outside of the garment 1000 is screwed into the threaded portion 4b on the inner surface of the main flow path body 4, thereby threadably connecting the attachment portion 910 and the main flow path body 4. As a result, as shown in Figures 8, 10, and 11, the flange portion 920 of the attachment portion 910 and the flange portion 4c at the rear end of the main flow path body 4 sandwich the periphery of the attachment hole 1100 of the garment 1000, and the cool air generator 1 is attached to the attachment hole 1100 of the garment 1000. When the cool air generator 1 is attached to the attachment hole 1100, the device main body 2 is located on the outside of the garment 1000, the flange portion 920 of the attachment member 900 is located on the inside of the garment 1000, and most of the attachment portion 910 is located on the inside of the main flow path body 4.

[0037] On the other hand, when the cool air generator 1 is removed from the garment 1000, the screw connection between the attachment portion 910 and the main flow path body 4 is released, and the main flow path body 4 is removed from the attachment member 900. Then, the attachment member 900 is taken out from the attachment hole 1100.

[0038] Fans that can be attached to mounting holes in clothing, such as those disclosed in Patent Documents 2 and 3, already existed before the filing of this application. The diameter of the mounting holes into which existing fans are attached is often 88 mm or more and 92 mm or less. The diameter of the mounting hole 1100 into which the cool air generator 1 is attached is 88 mm or more and 92 mm or less, similar to the diameter of the mounting holes into which existing fans are attached. Therefore, the cool air generator 1 can be attached to a mounting hole into which an existing fan can be attached. In other words, the cool air generator 1 can be attached to existing clothing into which an existing fan can be attached. This improves the convenience of the cool air generator 1.

[0039] The method of attaching the cold air generator 1 to the mounting hole 1100 is not limited to the above. The diameter of the mounting hole 1100 to which the cold air generator 1 is attached may be less than 88 mm or greater than 92 mm.

[0040] The first air discharged from the fan 3 flows through the space inside the main flow path body 4 and the space inside the annular mounting member 900 due to the rotation of the fan 3, and is discharged into the clothing 1000 from an opening on the flange portion 920 side of the mounting member 900. The first air discharged from the cool air generator 1 into the clothing 1000 circulates within the clothing 1000 due to the rotation of the fan 3, and is discharged outside the clothing 1000 from the neckline or the like of the clothing 1000.

[0041] In this example, the main flow path body 4 of the device main body 2 and the mounting member 900 connected to the main flow path body 4 form the flow path body 9 through which the first air flows in the cool air generator 1. The first air flows through the space inside the flow path body 9. The space inside the flow path body 9 can be said to be the flow path through which the first air flows. The flow path body 9 can also be said to be, for example, a duct. The main flow path body 4 forms the majority of the flow path body 9. The flow path body 9 extends in the front-to-rear direction. The opening at the front end of the flow path body 9 is formed by the opening at the front end of the main flow path body 4. The opening at the rear end of the flow path body 9 is formed by the opening on the flange portion 920 side of the mounting member 900. The opening at the rear end of the flow path body 9 (in other words, the opening on the flange portion 920 side of the mounting member 900) forms the exhaust port 90 (also referred to as the first exhaust port 90) that discharges the first air to the outside of the cool air generator 1. The exhaust port 90 is, for example, circular.

[0042] The first air taken in by the fan 3 from outside the cool air generator 1 is taken into the inside of the cool air generator 9 through an opening at the front end of the flow path body 9. The first air taken into the inside of the flow path body 9 flows through the flow path body 9 by the rotation of the fan 3. The first air is cooled by the first cooling section 5 while flowing through the flow path body 9. The cooled first air is discharged to the outside of the cool air generator 1 through the exhaust port 90 at the rear end of the flow path body 9 by the rotation of the fan 3. The first air (i.e., cool air) discharged from the cool air generator 1 flows through the garment 1000 by the rotation of the fan 3. The first air flows from left to right through the flow path body 9 extending in the front-to-rear direction. In this example, the air intake 33 of the fan 3 can be said to be an air intake that takes air into the fan 3 as well as an air intake that takes air into the cool air generator 1. The first air taken into the cool air generator 1 through the air intake 33 is discharged to the outside of the cool air generator 1 through the exhaust port 90. The fan 3 causes the first air taken in from outside the cool air generator 1 to flow through the flow path body 9 into the garment 1000, circulates the first air within the garment 1000, and then discharges it to the outside of the garment 1000.

[0043] The main flow path body 4 includes, for example, a heat transfer member arrangement section 40 in which a heat transfer member 7 is arranged. The heat transfer member 7 is arranged inside the heat transfer member arrangement section 40. The main flow path body 4 also includes a fan arrangement section 41 in which the fan 3 is arranged, and a connection section 42 that connects the fan arrangement section 41 and the heat transfer member arrangement section 40. Most of the fan 3 is arranged inside the fan arrangement section 41. The fan arrangement section 41 can also be said to be a fan mounting section where the fan 3 is attached.

[0044] The main flow path body 4 also includes an attachment portion 43 to which the attachment member 900 is attached, and a connection portion 44 that connects the attachment portion 43 and the heat transfer member arrangement portion 40. In the main flow path body 4, the fan arrangement portion 41, the connection portion 42, the heat transfer member arrangement portion 40, the connection portion 44, and the attachment portion 43 are arranged in this order from the front to the rear. The opening at the front end of the fan arrangement portion 41 forms the opening at the front end of the flow path body 9 (in other words, the opening at the front end of the main flow path body 4). The opening at the rear end of the attachment portion 43 forms the opening at the rear end of the main flow path body 4. The internal space of the connection portion 42 communicates with the internal space of the fan arrangement portion 41 and the internal space of the heat transfer member arrangement portion 40. The internal space of the connection portion 44 communicates with the internal space of the heat transfer member arrangement portion 40 and the internal space of the attachment portion 43.

[0045] An opening 48 (see FIGS. 8 and 9) is provided in the lower portion of the connecting portion 42, the heat transfer member arrangement portion 40, and the connecting portion 44, which are arranged in this order in the front-to-rear direction, and extends from the connecting portion 42 to the connecting portion 44. The opening 48 can be said to be provided in the lower portion of the main flow path body 4, or in the lower portion of the flow path body 9.

[0046] The opening 48 is closed by the heat absorbing / heat generating section 6 and a part of the first pedestal section 21 (described later) of the holding section 20 that holds the main flow path body 4. Hereinafter, the heat absorbing / heat generating section 6 and the part of the first pedestal section 21 that closes the opening 48 may be collectively referred to as the opening cover.

[0047] It can be said that the flow path body through which the first air flows in the device main body 2 is composed of the main body flow path body 4 and an open lid portion that closes the opening in the lower part thereof. In other words, it can be said that the flow path body through which the first air flows in the cold air generator 1 is composed of the flow path body 9 and an open lid portion that closes the opening in the lower part thereof.

[0048] Hereinafter, the main flow path body 4 described so far will be referred to as the main body portion, and the main body portion and the opening lid portion that closes the opening in its lower portion will be collectively referred to as the main flow path body 4. Also, the heat transfer member arrangement portion 40 described so far will be referred to as the main body portion, and the main body portion and a portion of the opening lid portion that closes the opening in its lower portion will be collectively referred to as the heat transfer member arrangement portion 40. Also, the connection portion 42 described so far will be referred to as the main body portion, and the main body portion and a portion of the opening lid portion that closes the opening in its lower portion will be collectively referred to as the connection portion 42. Also, the connection portion 44 described so far will be referred to as the main body portion, and the main body portion and a portion of the opening lid portion that closes the opening in its lower portion will be collectively referred to as the connection portion 44. And the flow path body 9 described so far will be referred to as the main body portion, and the main body portion and the opening lid portion that closes the opening in its lower portion will be collectively referred to as the flow path body 9.

[0049] The internal space of the heat transfer member arrangement section 40 has a shape that corresponds to the shape of the heat transfer member 7. The inner surface of the upper side of the heat transfer member arrangement section 40 is located near the tips of each fin 71 of the heat transfer member 7. The inner surface of the left side of the heat transfer member arrangement section 40 is located near the leftmost fin 71 of the heat transfer member 7. The inner surface of the right side of the heat transfer member arrangement section 40 is located near the rightmost fin 71 of the heat transfer member 7. The openings at both ends in the front-to-rear direction of the heat transfer member arrangement section 40 are approximately rectangular (see FIG. 9, etc.).

[0050] As indicated by arrow 811 in the center of FIG. 8 , within the heat-transfer-member-arranged section 40, the first air flows along the heat-absorbing surface 60 of the heat-absorbing and heat-generating section 6. Therefore, when the first air passes through the heat-transfer member 7, it flows along the heat-absorbing surface 60. In other words, when the first air passes through the heat-transfer member 7, it flows in a direction perpendicular to the protruding direction of the fins 71. This makes it easier for the first air to hit the multiple fins 71 of the heat-transfer member 7, and the time that the first air hits the heat-transfer member 7 can be lengthened. This improves the heat-absorbing efficiency of the first air by the heat-transfer member 7. This improves the cooling efficiency of the cool air generator 1.

[0051] The fan mounting portion 41 and the mounting portion 43 have, for example, a bilaterally symmetrical structure. Each of the fan mounting portion 41 and the mounting portion 43 is generally in the shape of a low cylinder with both bottom surfaces open.

[0052] Most of the case 32 of the fan 3 is disposed in the internal space of the fan mounting section 41. The above-mentioned screw portion 4a is provided on the inner surface of the fan mounting section 41. The openings at both ends in the front-to-rear direction of the fan mounting section 41 are circular. Approximately one-third of the rear of the fan mounting section 41 gradually tapers in diameter toward the rear. Therefore, of the openings at both ends in the front-to-rear direction of the fan mounting section 41, the diameter of the rear opening is slightly smaller than the diameter of the front opening.

[0053] The majority of the mounting portion 910 of the mounting member 900 is disposed in the internal space of the mounting portion 43 of the main flow path body 4. The above-mentioned threaded portion 4b is provided on the inner surface of the mounting portion 43. The openings at both ends of the mounting portion 43 in the front-to-rear direction are circular. The above-mentioned flange portion 4c is provided on the outer peripheral surface of the mounting portion 43 so as to surround the rear opening of the mounting portion 43. Approximately one-third of the front side of the mounting portion 43 has a diameter that gradually decreases slightly toward the front. Therefore, at the openings at both ends of the mounting portion 43 in the front-to-rear direction, the diameter of the front opening is slightly smaller than the diameter of the rear opening.

[0054] The main body portions of the connecting portion 42 and the connecting portion 44 have, for example, a bilaterally symmetrical structure. The connecting portion 42 connecting the fan mounting portion 41 and the heat transfer member mounting portion 40 has a circular opening at the front end corresponding to the shape of the opening at the rear end on the fan mounting portion 41 side, and a substantially rectangular opening at the rear end corresponding to the shape of the opening at the front end of the heat transfer member mounting portion 40. The connecting portion 44 connecting the heat transfer member mounting portion 40 and the attachment portion 43 has a substantially rectangular opening at the front end corresponding to the shape of the opening at the rear end of the heat transfer member mounting portion 40, and a circular opening at the rear end corresponding to the shape of the opening at the front end of the attachment portion 43. The diameter of the connecting portion 42 gradually decreases toward the rear. The diameter of the connecting portion 44 gradually decreases toward the front.

[0055] If the heat transfer member arrangement section 40 is viewed as a rectangular duct and the fan arrangement section 41 and mounting section 43 are viewed as round ducts, the connecting sections 42 and 44 can also be viewed as conversion ducts that convert the shape of the duct from round to rectangular.

[0056] In this example, the opening area of ​​the heat transfer member arrangement section 40 on the exhaust port 90 side (in other words, the opening area on the rear side of the heat transfer member arrangement section 40) is smaller than the opening area of ​​the exhaust port 90 (in other words, the opening on the rear side of the flow path body 9). The opening area of ​​the heat transfer member arrangement section 40 on the exhaust port 90 side is smaller than the opening area on the front side of the flow path body 9. The opening area of ​​the heat transfer member arrangement section 40 on the exhaust port 90 side is smaller than the opening area of ​​the intake port 33. As described above, the intake port 33 is divided by ribs and consists of multiple openings. In this case, the opening area of ​​the intake port 33 is the sum of the opening areas of the multiple openings that make up the intake port 33. The same applies when the exhaust port 90 is divided by ribs.

[0057] In this example, the opening area on the front side of the heat transfer member arrangement section 40 (in other words, the opening area on the intake port 33 side of the heat transfer member arrangement section 40) is smaller than the opening area of ​​the exhaust port 90. The opening area on the front side of the heat transfer member arrangement section 40 is smaller than the opening area on the front side of the flow path body 9. The opening area on the front side of the heat transfer member arrangement section 40 is smaller than the opening area of ​​the intake port 33.

[0058] The opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction (in other words, the opening area on the exhaust port 90 side and the opening area on the intake port 33 side) are each smaller than the opening area in a cross section taken along the vertical direction of a portion of the flow path body 9 that is closer to the exhaust port 90 than the heat transfer member arrangement section 40. In other words, the opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction are each smaller than the opening area in a cross section taken along the vertical direction of a portion of the flow path body 9 that is closer to the exhaust port 90 than the heat transfer member arrangement section 40. For example, the opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction are each smaller than the opening area in a cross section taken along the vertical direction of the mounting section 43. Furthermore, the opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction are each smaller than the opening area in a cross section taken along the vertical direction of an intermediate portion and a rear portion of the connecting portion 44.

[0059] Furthermore, the opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction are smaller than the opening area of ​​a section of the flow path body 9 that is closer to the intake port 33 than the heat transfer member arrangement section 40, taken along the vertical direction. For example, the opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction are smaller than the opening area of ​​the fan arrangement section 41, taken along the vertical direction. Furthermore, the opening areas of the heat transfer member arrangement section 40 at both ends in the front-rear direction are smaller than the opening area of ​​the middle and front portions of the connection section 42, taken along the vertical direction.

[0060] In this way, in this example, the opening area of ​​the heat transfer member arrangement section 40 on the exhaust port 90 side is small, so even if a relatively small heat transfer member 7 is arranged in the heat transfer member arrangement section 40, it is possible to reduce the portion of the first air that does not hit the heat transfer member 7. Therefore, it is possible to reduce the size of the cool air generator 1.

[0061] In addition, in this example, the opening area of ​​the heat transfer member arrangement section 40 on the intake port 33 side is small, so even if a relatively small heat transfer member 7 is arranged in the heat transfer member arrangement section 40, it is possible to reduce the portion of the first air that does not hit the heat transfer member 7. Therefore, it is possible to reduce the size of the cool air generator 1.

[0062] The configurations of the main flow path body 4 and the flow path body 9 are not limited to those described above. For example, the opening area of ​​the heat transfer member arrangement section 40 on the intake port 33 side and the opening area of ​​the heat transfer member arrangement section 40 on the exhaust port 90 side may be different from each other. Also, for example, the inner diameter of the main flow path body 4 may be constant from one end on the front side to one end on the rear side.

[0063] The fan 3 can be removed from the main flow path body 4 and attached to a mounting hole 1100 of the garment 1000 to which the cool air generator 1 can be attached. From another perspective, the cool air generator 1 can be attached to a mounting hole 1100 provided in the garment 1000 to which the fan 3 can be attached. Since the diameter of the mounting hole 1100 is approximately the same as the diameter of a mounting hole to which an existing fan can be attached, the fan 3 can be attached to a mounting hole to which an existing fan can be attached. In other words, the fan 3 can be attached to existing garments to which an existing fan can be attached.

[0064] The fan 3 can be mounted in the mounting hole 1100 using, for example, a second annular mounting member similar to the mounting member 900. The second mounting member includes a second annular mounting portion that is mounted to the case 32 of the fan 3 and a second annular flange portion that connects to the second mounting portion. The second flange portion surrounds the outer circumferential surface of the second mounting portion and protrudes radially from the outer circumferential surface of the second mounting member. The second flange portion is located on the periphery of one opening of the second annular mounting portion. The inner surface of the second mounting portion is provided with a second thread portion that threadably engages with a thread portion 36 provided on the outer surface of the case 32 of the fan 3.

[0065] When the fan 3 is attached to the mounting hole 1100 of the clothing 1000, the case 32 is first inserted into the mounting hole 1100 from the outside of the clothing 1000. At this time, the case 32 is inserted into the mounting hole 1100 from the exhaust port 35 side. When the case 32 is inserted into the mounting hole 1100 from the exhaust port 35 side, the flange portion 34 of the case 32 abuts against the outer surface of the periphery of the mounting hole 1100 of the clothing 1000 without passing through the mounting hole 1100. The screw portion 36 provided on the outer surface of the case 32 is located inside the clothing 1000.

[0066] Next, the second screw portion on the inside of the second mounting portion of the second mounting member is screwed into the screw portion 36 located on the inside of the garment 1000 from inside the garment 1000, thereby screwing together the case 32 and the second mounting member. As a result, the flange portion 34 of the case 32 and the second flange portion of the second mounting member sandwich the periphery of the mounting hole 1100 of the garment 1000, and the fan 3 is attached to the mounting hole 1100 of the garment 1000.

[0067] On the other hand, when the fan 3 is removed from the clothing 1000, the screw connection between the case 32 and the second attachment member is released, and the second attachment member is removed from the case 32. Then, the case 32 is taken out of the attachment hole 1100.

[0068] In this way, the cool air generator 1 is configured so that it can be attached to the attachment hole 1100 provided in the clothing 1000 to which the fan 3 can be attached, thereby improving the convenience of the cool air generator 1.

[0069] <Configuration example of second cooling unit and holding unit> The second cooling section 10 is capable of cooling the heat-generating surface 61 of the heat-absorbing and heat-generating section 6, which is the heat-generating portion of the first cooling section 5. The second cooling section 10 includes, for example, a heat transfer member 11 (also referred to as the second heat transfer member 11) provided on the heat-generating surface 61, and a fan 12 (also referred to as the second fan 12) that blows air toward the heat transfer member 11.

[0070] The holding portion 20 includes, for example, a first pedestal portion 21 that holds the main portion of the main flow path body 4 and the heat transfer member 11, a second pedestal portion 22 that holds the fan 12, and a plurality of pillars 23 that connect the first pedestal portion 21 and the second pedestal portion 22. The first pedestal portion 21 can also be considered a first holding portion that holds the main portion of the main flow path body 4 and the heat transfer member 11. The second pedestal portion 22 can also be considered a second holding portion that holds the fan 12. The plurality of pillars 23 can also be considered connecting portions that connect the first holding portion and the second holding portion.

[0071] The heat transfer member 11 absorbs and dissipates heat from the heat generating surface 61. The heat transfer member 11 is made of, for example, a metal with high thermal conductivity and is also called a heat sink. The heat transfer member 11 may be made of aluminum, copper, or other metals. The heat transfer member 11 is attached to the heat generating surface 61 by, for example, a thermally conductive adhesive material. The thermally conductive adhesive material may be made of metal, thermally conductive grease, thermally conductive adhesive material, or other materials.

[0072] The heat transfer member 11 includes, for example, a rectangular plate-like base plate 110 extending in the front-rear and left-right directions, and a plurality of fins 111 erected on the lower surface of the base plate 110. The fins 111 are, for example, rod-shaped. The rod-shaped fins 111 are, for example, arranged in a matrix on the base plate 110. The fins 111 protrude downward from the base plate 110. The heat generating surface 61 is fixed to the upper surface of the base plate 110 with a thermally conductive adhesive. The fins 111 extend in a direction perpendicular to the heat generating surface 61.

[0073] However, the structure of the heat transfer member 11 is not limited to this. For example, the multiple fins 111 may be arranged in a ring shape (e.g., annular shape) instead of in a matrix. Also, for example, the multiple plate-shaped fins 111 may be arranged in a line on the base plate 110.

[0074] The first pedestal 21 is, for example, in the shape of a plate extending in the front-rear and left-right directions, and has an opening 210 (see FIGS. 8 and 9 ) in its center where the heat absorption and absorbing section 6 is disposed. The upper surface of the base plate 110 of the heat transfer member 11 is fixed to the lower surface of the first pedestal 21. The heat generating surface 61 of the heat absorption and absorbing section 6 is fixed to a portion of the upper surface of the base plate 110 that is exposed from the opening 210 of the first pedestal 21. The main body part of the heat transfer member arrangement section 40 is fixed to the upper surface of the first pedestal 21. The lower opening 48 of the main body part of the main flow path body 4 is closed by the heat absorption and absorbing section 6 and the peripheral portion of the heat absorption and absorbing section 6 in the first pedestal 21.

[0075] The second base portion 22 is in the form of a plate that extends in the front-rear and left-right directions, and has an opening 220 (see FIGS. 8 and 9, etc.) in its center, to which the fan 12 is attached. The outer surface of the fan 12 is held by the inner surface of the opening 220. The second base portion 22 is located below the first base portion 21.

[0076] The holding portion 20 includes, for example, four pillars 23. The peripheral end of the first base portion 21 and the peripheral end of the second base portion 22 are connected by the four pillars 23. The four pillars 23 are, for example, two pillars 23 aligned in the left-right direction on the front side and two pillars 23 aligned in the left-right direction on the rear side. The four pillars 23 are configured as a pillar 23 on the front right side, a pillar 23 on the front left side, a pillar 23 on the rear right side, and a pillar 23 on the rear left side.

[0077] The fan 12 takes in air from one side and expels the taken-in air to the other side. The fan 12 takes in air from outside the cool air generator 1 and directs the taken-in air toward the heat transfer member 11. The air that hits the heat transfer member 11 absorbs heat transferred from the heat-generating surface 61 of the heat-absorbing and heat-generating unit 6 to the heat transfer member 11. The air that has absorbed the heat from the heat transfer member 11 is expelled to the outside of the cool air generator 1 by the rotation of the fan 12. This efficiently cools the heat-generating surface 61. As a result, the heat absorption efficiency of the heat-absorbing surface 60 of the heat-absorbing and heat-generating unit 6 is improved. The improved heat absorption efficiency of the heat-absorbing surface 60 improves the heat absorption efficiency of the heat transfer member 7 attached to the heat-absorbing surface 60 with respect to the first air, thereby enabling the first air flowing through the garment 1000 to be efficiently cooled. As a result, the cooling efficiency of the cool air generator 1 is improved. Hereinafter, the air taken in by the fan 12 will be referred to as the second air. Arrows 812 shown in FIGS. 3 to 9 indicate the direction in which the second air flows.

[0078] The fan 12 is, for example, a propeller fan. The fan 12 has, for example, the same structure as the fan 3. The fan 12 includes, for example, an impeller 120, a motor 121 that rotates the impeller 120, and a case 122 that houses the impeller 120 and the motor 121. The fan 12 rotates as the impeller 120 rotates. The case 122 is fixed to the inner surface of the opening 220 of the second base 22, thereby fixing the fan 12 to the second base 22.

[0079] The case 122 has, for example, a generally low cylindrical shape. An intake port 123 that takes in air into the case 122 is provided on one bottom surface of the generally cylindrical case 122. The outer shape of the intake port 123 is, for example, circular. The intake port 123 is divided by ribs and is made up of multiple openings. The case 122 has an annular flange portion 124 that surrounds the intake port 123. The flange portion 124 protrudes radially from the intake port 123.

[0080] An exhaust port 125 is provided on the other bottom surface of the case 122, which exhausts air taken into the case 122 to the outside of the case 122. The exhaust port 125 is divided by ribs and is made up of multiple openings. A threaded portion 126 (see Figures 8 and 9) is provided on the side surface of the case 122. How to use the threaded portion 126 will be explained later.

[0081] When the fan 12 is viewed from the intake port 123 side, the outer shape of the case 122 is approximately circular. When the fan 12 is viewed from the exhaust port 125 side, the outer shape of the case 122 is approximately circular.

[0082] The fan 12 is fixed to the opening 220 of the second base portion 22 so that the intake port 123 faces downward and the exhaust port 125 faces upward. A groove is formed on the inner surface of the opening 220, and the outer peripheral edge of the flange portion 124 of the case 122 fits into this groove, thereby fixing the fan 12 to the opening 220. The intake port 123 of the fan 12 is exposed from an opening on the lower side of the opening 220 of the second base portion 22. The second air taken in by the fan 12 from the intake port 123 passes through the opening 220 of the second base portion 22 and is discharged from the exhaust port 125. The second air discharged from the exhaust port 125 hits the heat transfer member 11. Forced convection occurs due to the rotation of the fan 12, improving the heat dissipation efficiency of the heat transfer member 11. As a result, the heat-generating surface 61 of the heat-absorbing and heat-generating portion 6 is more easily cooled, and the heat-absorbing efficiency of the heat-absorbing surface 60 of the heat-absorbing and heat-generating portion 6 is improved.

[0083] The rotational axis direction of fan 12 and the rotational axis direction of fan 3 are not parallel to each other. This allows for greater freedom in the layout of the components of fans 3 and 12 in cool air generator 1 compared to when the rotational axis directions of fan 12 and fan 3 must be parallel to each other. In this example, the rotational axis direction of fan 12 is aligned in the up-down direction, and the rotational axis direction of fan 3 is aligned in the front-to-rear direction.

[0084] The fan 12 and the heat transfer member 11 are aligned in the vertical direction. The exhaust port 125 of the fan 12 is located near the tip of the rod-shaped fins 111 of the heat transfer member 11. The fan 12 discharges the second air taken in from the outside of the cool air generator 1 upward. The fan 12 flows the second air toward the heat transfer member 11 in a direction perpendicular to the heat generating surface 61 of the heat absorbing and heat transferring unit 6.

[0085] In this way, when the fan 12 flows the second air toward the heat transfer member 11 in a direction perpendicular to the heat-generating surface 61, it is possible to improve the heat dissipation efficiency of the heat transfer member 11. This makes it easier to cool the heat-generating surface 61, and improves the heat absorption efficiency of the heat-absorbing surface 60.

[0086] When the multiple fins 111 of the heat transfer member 11 are arranged in an annular (for example, circular) shape, at least a portion of the exhaust port 125 of the fan 12 may be arranged in a space surrounded by the multiple fins 111. In other words, at least a portion of the exhaust port 125 may be surrounded by the multiple fins 111. Furthermore, at least a portion of the case 122 of the fan 12 may be surrounded by the multiple fins 111.

[0087] The second air that has come into contact with the heat transfer member 11 and absorbed the heat of the heat transfer member 11 is discharged to the outside of the cool air generator 1 from between the plurality of pillars 23 that connect the first base portion 21 and the second base portion 22. The spaces between the plurality of pillars 23 function as exhaust ports 29 that discharge the second air to the outside of the cool air generator 1.

[0088] The exhaust port 29 is composed of four openings: a front opening 29a surrounded by two pillars 23 lined up laterally on the front side, the first base 21, and the second base 22; a rear opening 29b surrounded by two pillars 23 lined up laterally on the rear side, the first base 21, and the second base 22; a right opening 29c surrounded by two pillars 23 lined up front and rear on the right side, the first base 21, and the second base 22; and a left opening 29d surrounded by two pillars 23 lined up front and rear on the left side, the first base 21, and the second base 22. The second air discharged from the fan 12 is discharged to the outside of the cool air generator 1 from the front opening 29a, the rear opening 29b, the right opening 29c, and the left opening 29d.

[0089] In the cool air generator 1, the second air does not flow through the flow path body 9 through which the first air flows. Therefore, the space through which the first air flows, whose heat is absorbed by the heat transfer member 7, and the space through which the second air flows, absorbing the heat of the heat transfer member 11, are separated by the flow path body 9. This makes it difficult for the first air and the second air to mix, and the first air flowing within the garment 1000 can be efficiently cooled.

[0090] In this example, the opening area of ​​exhaust port 29, through which the second air is discharged, is larger than the opening area of ​​exhaust port 90, through which the first air is discharged. Since exhaust port 29 is composed of front opening 29a, rear opening 29b, right opening 29c, and left opening 29d, the opening area of ​​exhaust port 29 is the sum of the opening areas of front opening 29a, rear opening 29b, right opening 29c, and left opening 29d. In addition, the opening area of ​​exhaust port 29 is larger than the opening area of ​​the front side of flow path body 9 and is larger than the opening area of ​​intake port 33.

[0091] The opening area of ​​the front opening 29a can also be said to be the area of ​​a planar region (in this example, a substantially rectangular planar region) surrounded by the edges of the front opening 29a when the front opening 29a is viewed in plan from the front side (see FIG. 4). The opening area of ​​the rear opening 29b can also be said to be the area of ​​a planar region surrounded by the edges of the rear opening 29b when the rear opening 29b is viewed in plan from the rear side (see FIG. 5). The opening area of ​​the right opening 29c can also be said to be the area of ​​a planar region surrounded by the edges of the right opening 29c when the right opening 29c is viewed in plan from the right side. The opening area of ​​the left opening 29d can also be said to be the area of ​​a planar region surrounded by the edges of the left opening 29d when the left opening 29d is viewed in plan from the left side.

[0092] In this way, in this example, the opening area of ​​the exhaust port 29, which discharges the second air that has absorbed the heat of the heat transfer member 11 to the outside of the cool air generator 1, is large, which improves the heat discharge efficiency of the heat transfer member 11. This makes it easier to cool the heat generating surface 61, improving the heat absorption efficiency of the heat absorbing surface 60. As a result, the cooling efficiency of the first air flowing inside the garment 1000 improves. In other words, the cooling efficiency of the cool air generator 1 improves.

[0093] In this example, the surface area of ​​the exposed surface of heat transfer member 11 is larger than the surface area of ​​the exposed surface of heat transfer member 7. The exposed surface of heat transfer member 11 can also be said to be the area of ​​the surface of heat transfer member 11 that is exposed to the second air. The exposed surface of heat transfer member 11 can also be said to be the area of ​​the surface of heat transfer member 11 that is not in contact with other members. Therefore, the exposed surface of heat transfer member 11 does not include the area of ​​the surface of heat transfer member 11 that is in contact with first base portion 21, etc.

[0094] Similarly, the exposed surface of the heat transfer member 7 can be said to be the area of ​​the surface of the heat transfer member 7 that is exposed to the first air. Also, the exposed surface of the heat transfer member 7 can be said to be the area of ​​the surface of the heat transfer member 7 that is not in contact with other members.

[0095] For example, the thickness of the base plate 110 of the heat transfer member 11 is greater than the thickness of the base plate 70 of the heat transfer member 7. Furthermore, the surface areas of the upper and lower faces of the base plate 110 are greater than the surface areas of the upper and lower faces of the base plate 70. Furthermore, the height of the fins 111 of the heat transfer member 11 is greater than the height of the fins 71 of the heat transfer member 7. Furthermore, the thickness of the fins 111 of the heat transfer member 11 is greater than the thickness of the fins 71 of the heat transfer member 7. Furthermore, the number of fins 111 is greater than the number of fins 71.

[0096] The surface area of ​​the exposed surface of heat transfer member 11 may be, for example, 1.5 times or more, 2 times or more, 2.5 times or more, or 3 times or more the surface area of ​​the exposed surface of heat transfer member 7.

[0097] In this way, in this example, the exposed surface area of ​​the heat transfer member 11 is increased, which improves the heat dissipation effect of the heat transfer member 11. This makes it easier to cool the heat generating surface 61, improving the heat absorption efficiency of the heat absorption surface 60. As a result, the cooling efficiency of the cool air generator 1 for the first air is improved.

[0098] The relationship between the configuration of heat transfer member 11 and the configuration of heat transfer member 7 is not limited to the above example. For example, the shape of fins 111 of heat transfer member 11 and the shape of fins 71 of heat transfer member 7 may be different from each other. Furthermore, the surface area of ​​the exposed surface of heat transfer member 11 may be the same as the surface area of ​​the exposed surface of heat transfer member 7, or may be smaller than the surface area of ​​the exposed surface of heat transfer member 7.

[0099] The thermal conductivity of heat transfer member 11 may be higher than that of heat transfer member 7. For example, heat transfer member 7 may be made of aluminum, and heat transfer member 11 may be made of copper, which has a higher thermal conductivity than aluminum. Increasing the thermal conductivity of heat transfer member 11 in this way can improve the heat dissipation effect of heat transfer member 11. The thermal conductivity of heat transfer member 11 may be the same as that of heat transfer member 7, or may be lower than that of heat transfer member 7.

[0100] In this example, the fan 12 is detachable from the cool air generator 1. This allows the fan 12 to be used independently, improving the convenience of the cool air generator 1. In this example, for example, the second base portion 22 that holds the fan 12 can be detached from the multiple columns 23. Furthermore, for example, the second base portion 22 has a two-piece structure, and the second base portion 22 can be separated into two members. When removing the fan 12 from the second base portion 22, first, the second base portion 22 is detached from the multiple columns 23. Then, by separating the second base portion 22 into two members, the fan 12 can be removed from the second base portion 22. By following the reverse procedure, the fan 12 can be attached to the second base portion 22, and then the second base portion 22 that holds the fan 12 can be attached to the multiple columns 23.

[0101] If the fan 12 is detachable, the fan 12 may be attachable to a mounting hole 1100 of the garment 1000 to which the cool air generator 1 can be attached, similar to the fan 3. In this case, it can also be said that the cool air generator 1 can be attached to the mounting hole 1100 provided in the garment 1000 to which the fan 12 can be attached. Furthermore, since the diameter of the mounting hole 1100 is approximately the same as the diameter of a mounting hole to which an existing fan can be attached, it can also be said that the fan 12 can be attached to a mounting hole to which an existing fan can be attached.

[0102] The fan 12 can be attached to the attachment hole 1100 using, for example, a third attachment member 13 having a structure similar to that of the second attachment member described above. As shown in Figures 8 and 9, for example, the fan 12 is held by the second base portion 22 with the third attachment member 13 attached.

[0103] The third mounting member 13 includes an annular third mounting portion 130 that is attached to the case 122 of the fan 12, and a third flange portion 131 that surrounds the edge of one opening of the third mounting portion 130. The inner surface of the third mounting portion 130 is provided with a third screw portion 130a (see FIGS. 8 and 9) that screws into a screw portion 126 that is provided on the outer surface of the case 122 of the fan 12. As shown in FIGS. 8 and 9, the third mounting member 13 attached to the fan 12 is fixed to the second base portion 22 by fitting the outer peripheral end of the third flange portion 131 into a groove that is provided on the inner surface of the second base portion 22.

[0104] Fan 12 is attached to mounting hole 1100 in the same manner as fan 3. First, case 122 is inserted into mounting hole 1100 from the outside of garment 1000. At this time, case 122 is inserted into mounting hole 1100 from the exhaust port 125 side. Flange portion 124 of case 122 abuts against the outer surface of the periphery of mounting hole 1100 of garment 1000, and threaded portion 126 provided on the outer surface of case 122 is positioned inside garment 1000.

[0105] Next, the third screw portion 130a on the inside of the third mounting portion 130 of the third mounting member 13 is screwed into the screw portion 126 located on the inside of the garment 1000 from the inside of the garment 1000, thereby screwing together the case 122 and the third mounting member 13. As a result, the flange portion 124 of the case 122 and the third flange portion 131 of the third mounting member 13 sandwich the periphery of the mounting hole 1100 of the garment 1000, and the fan 12 is attached to the mounting hole 1100 of the garment 1000.

[0106] On the other hand, when the fan 12 is removed from the clothing 1000, the screw connection between the case 122 and the third attachment member 13 is released, and the third attachment member 13 is removed from the case 122. Then, the case 122 is taken out of the attachment hole 1100.

[0107] In this way, the cool air generator 1 can be attached to the attachment hole 1100 provided in the clothing 1000 to which the fan 12 can be attached, thereby improving the convenience of the cool air generator 1.

[0108] Furthermore, by attaching the fan 12 to the second base portion 22 with the third mounting member 13 attached, there is no need to prepare the third mounting member 13 separately from the cold air generating device 1, thereby improving the convenience of the cold air generating device 1.

[0109] The fan 3 may also be attached to the main flow path body 4 with the second attachment member attached. The fan 12 may also be attached to the second base portion 22 without the third attachment member 13 attached. The fan 12 may not be detachable from the cool air generator 1. The fan 12 may also be something other than a propeller fan.

[0110] The fans 3, 12, and heat absorbing / generating unit 6 included in the cool air generator 1 are supplied with power from, for example, a battery device. For example, a cable extending from the battery device is connected to the cool air generator 1, and power output from the battery device is supplied to the fans 3, 12, and heat absorbing / generating unit 6 through the cable. The fans 3 and 12 rotate based on the power from the battery device. The heat absorbing / generating unit 6 operates based on the power from the battery device, and during operation, absorbs heat at the heat absorbing surface 60 and generates heat at the heat generating surface 61.

[0111] The method of connecting the cool air generator 1 and the garment 1000 is not limited to the above example. For example, the main flow path body 4 may be connected to the garment 1000 with a hose. That is, one end of the hose may be connected to an opening on the rear side of the main flow path body 4, and the other end of the hose may be inserted into the garment 1000 through a mounting hole 1100 in the garment 1000. In this case, the main flow path body 4 and the hose connected thereto constitute a flow path body 9 through which the first air flows. The opening at the end of the hose inside the garment 1000 constitutes an exhaust port 90 that discharges the first air into the garment 1000. When a hose is connected to the main flow path body 4, the device main body 2 may be stored in a bag such as a waist pouch or a backpack.

[0112] In the above example, the rotational axis directions of fan 3 and fan 12 are non-parallel to each other, but they may also be parallel to each other. Here, in the present disclosure, the rotational axis directions of fan 3 and fan 12 being parallel to each other includes the case where the rotational axis directions of fan 3 and fan 12 are on the same straight line. Therefore, the rotational axis directions of fan 3 and fan 12 being non-parallel to each other does not include the case where the rotational axis directions of fan 3 and fan 12 are on the same straight line.

[0113] Fig. 12 is a schematic diagram showing an example of the cool air generator 1 when the rotation axis direction of the fan 3 and the rotation axis direction of the fan 12 are parallel to each other. In Fig. 12, each component is shown in a simplified form. Fig. 12 is a diagram corresponding to Fig. 8 described above. As in Fig. 8, the left side, right side, upper side, lower side, front side and rear side of Fig. 12 correspond to the front side, rear side, upper side, lower side, right side and left side of the cool air generator 1, respectively.

[0114] In the example of FIG. 12, the rotation axis direction of fan 3 and the rotation axis direction of fan 12 are aligned vertically and are positioned on the same straight line. The flow of second air taken in by fan 12 (see arrow 812) is the same as in the above example. On the other hand, the flow of first air taken in by fan 3 (see arrow 811) is different from that in the above example. The main flow path body 4 has openings on both the left and right ends and on the upper side. As the fan 3 rotates, the first air is taken into the main flow path body 4 from the openings on both ends of the main flow path body 4. Then, as the fan 3 rotates, the first air taken into the main flow path body 4 is discharged to the outside of the main flow path body 4 from the opening on the upper side of the main flow path body 4.

[0115] In the example of Figure 12, for example, one end of a hose may be connected to the upper opening of the main flow path body 4, and the other end of the hose may be inserted into the inside of the clothing 1000 through an attachment hole 1100 in the clothing 1000, thereby connecting the cold air generating device 1 to the clothing 1000.

[0116] 12 , when the plurality of fins 71 included in the heat transfer member 7 are arranged in an annular shape, at least a portion of the case 32 of the fan 3 may be arranged in a space surrounded by the plurality of annular fins 71. In other words, at least a portion of the case 32 may be surrounded by the plurality of fins 71.

[0117] In the above example, the fan 12 is arranged so that the air intake 123 faces the underside of the cool air generator 1, but as shown in Figures 13 and 14, the fan 12 may be arranged so that the air exhaust 125 faces the underside of the cool air generator 1. Figure 13 is a view corresponding to the above-mentioned Figure 1, and Figure 14 is a view corresponding to the above-mentioned Figure 3. Figures 13 and 14 show an example of how the mounting member 900 is attached to the device main body 2. In Figure 14, the direction in which the second air taken in by the fan 12 flows is indicated by arrow 812.

[0118] 13 and 14, in this example, the fan 12 is attached to the opening 220 of the second base 22 so that the exhaust port 125 faces downward and the intake port 123 faces upward. The height of each pillar 23 in this example is lower than the pillars 23 shown in FIG. 1 and the like, and is, for example, approximately the same as the height of each fin 111 of the heat transfer member 11. The intake port 123 of the fan 12 is located near the tip of the fin 111. Furthermore, the holder 20 in this example has four pillars 24 erected at the four corners of the lower surface of the second base 22. Note that the holder 20 does not necessarily have to have the pillars 24.

[0119] In this example, four openings, the front opening 29a, the rear opening 29b, the right opening 29c, and the left opening 29d, form an air intake 290 that takes in air from the outside to the inside of the cool air generator 1. While the fan 12 is rotating, the second air taken into the cool air generator 1 through the air intake 290 hits the heat transfer member 11 and absorbs heat from the heat transfer member 11. After absorbing the heat from the heat transfer member 11, the second air passes through the air intake 123 of the fan 12 and is then discharged to the outside of the cool air generator 1 through the exhaust port 125 of the fan 12. In this example, the exhaust port 125 of the fan 12 functions as an exhaust port that discharges the second air to the outside of the cool air generator 1. The fan 12 flows the second air that hits the heat transfer member 11 in a direction perpendicular to the heat-generating surface 61 of the heat-absorbing and heat-generating unit 6 and discharges it to the outside of the cool air generator 1.

[0120] In the above example, both fans 3 and 12 are positioned on the outside of garment 1000, however, fan 3 may be positioned on the inside of garment 1000 and fan 12 may be positioned on the outside of garment 1000.

[0121] The cool air generator 1 may be attached to fabric other than the garment 1000 to blow cool air into the garment 1000. For example, the cool air generator 1 may be attached to the fabric of a bag (e.g., a waist pouch or backpack) worn together with the garment 1000 or to other fabric to blow cool air into the garment 1000. For example, the cool air generator 1 attached to a bag or the like may have its exhaust port 90 facing the inside of the garment 1000, allowing the cool air generator 1 to blow cool air into the garment 1000.

[0122] Even when the cool air generator 1 is attached to a fabric other than the garment 1000, the diameter of the mounting hole in the fabric may be 88 mm or more and 92 mm or less. In this case, the cool air generator 1 can be attached to a mounting hole in the fabric other than the garment to which an existing fan can be attached. Furthermore, even when the cool air generator 1 is attached to a fabric other than the garment 1000, at least one of the fans 3 and 12 may be attachable to the mounting hole in the fabric. In other words, the cool air generator 1 may be attachable to a mounting hole in the fabric other than the garment 1000 to which at least one of the fans 3 and 12 can be attached.

[0123] Although the cold air generator has been described in detail above, the above description is merely an example in all respects, and this disclosure is not limited thereto. Furthermore, the various examples described above can be combined and applied as long as they are not mutually contradictory. It is understood that countless examples not illustrated can be envisioned without departing from the scope of this disclosure.

[0124] This disclosure includes the following:

[0125] In one embodiment, (1) a cool air generating device generates cool air that flows inside clothing, and includes a heat absorbing and heat generating part having a heat absorbing surface and a heat generating surface, a first heat transfer member provided on the heat absorbing surface, a second heat transfer member provided on the heat generating surface, a first fan that flows first air toward the first heat transfer member, a second fan that flows second air toward the second heat transfer member, a first exhaust port that discharges the first air, whose heat has been absorbed by the first heat transfer member, to the outside of the cool air generating device, and a second exhaust port that discharges the second air, whose heat has been absorbed by the second heat transfer member, to the outside of the cool air generating device, wherein the first air discharged from the first exhaust port is used as the cool air, and the opening area of ​​the second exhaust port is larger than the opening area of ​​the first exhaust port.

[0126] (2) In the cool air generator according to (1), the surface area of ​​the exposed surface of the second heat transfer member is larger than the surface area of ​​the exposed surface of the first heat transfer member.

[0127] (3) In the cool air generator according to (1) or (2), the second heat transfer member has a higher thermal conductivity than the first heat transfer member.

[0128] (4) In the cool air generator according to any one of (1) to (3) above, the first air flows along the heat absorbing surface when passing through the first heat transfer member.

[0129] (5) A cold air generating device according to any one of (1) to (4) above, comprising a flow path body through which the first air flows, the flow path body having the first exhaust port, the flow path body having a heat transfer member arrangement section in which the first heat transfer member is arranged, and the opening area of ​​the heat transfer member arrangement section on the first exhaust port side is smaller than the opening area of ​​the first exhaust port.

[0130] (6) A cool air generating device according to any one of (1) to (5) above, comprising a flow path body through which the first air flows and having the first exhaust port, the flow path body having a heat transfer member arrangement section in which the first heat transfer member is arranged, and the opening area of ​​the heat transfer member arrangement section on the first exhaust port side is smaller than the opening area in a cross section along a direction perpendicular to the heat absorption surface of a part of the flow path body closer to the first exhaust port than the heat transfer member arrangement section.

[0131] (7) In the cool air generating device according to any one of (1) to (6) above, the second fan flows the second air toward the second heat transfer member in a direction perpendicular to the heat generating surface.

[0132] (8) In the cool air generating device according to any one of (1) to (7) above, the rotation axis direction of the first fan and the rotation axis direction of the second fan are not parallel to each other.

[0133] (9) A cold air generator according to any one of (1) to (8) above, which can be attached to a mounting hole on clothing with a diameter of 88 mm or more and 92 mm or less.

[0134] (10) In the cool air generating device according to any one of (1) to (9) above, at least one of the first fan and the second fan is detachable.

[0135] (11) The cool air generating device according to (10) above can be attached to a mounting hole provided in the fabric, to which the at least one fan can be attached. [Explanation of symbols]

[0136] 1. Cold air generator 3, 12 Fan 6 Heat absorption and heat generation section 7, 11 Heat transfer members 9 Flow path body 29, 90 exhaust port 60 Heat absorption surface 61 Heating surface 1000 clothes 1100 mounting hole

Claims

1. A cold air generating device that generates cold air that flows inside clothing, a heat absorbing and heat generating portion having a heat absorbing surface and a heat generating surface; a first heat transfer member provided on the heat absorption surface; a second heat transfer member provided on the heat generating surface; a first fan that causes first air to flow toward the first heat transfer member; a second fan that causes second air to flow toward the second heat transfer member; a first exhaust port that discharges the first air, the heat of which has been absorbed by the first heat transfer member, to the outside of the cool air generating device; a second exhaust port that discharges the second air that has absorbed the heat of the second heat transfer member to the outside of the cool air generating device; Equipped with The first air discharged from the first exhaust port is used as the cool air, The cool air generating device, wherein an opening area of ​​the second exhaust port is larger than an opening area of ​​the first exhaust port.

2. The cold air generating device according to claim 1, A cool air generating device, wherein the surface area of ​​the exposed surface of the second heat transfer member is larger than the surface area of ​​the exposed surface of the first heat transfer member.

3. The cold air generating device according to claim 1 or 2, The second heat transfer member has a higher thermal conductivity than the first heat transfer member.

4. The cold air generating device according to claim 1 or 2, The first air flows along the heat absorbing surface when passing through the first heat transfer member.

5. The cold air generating device according to claim 1 or 2, a flow path body through which the first air flows, the flow path body having the first exhaust port; the flow path body has a heat transfer member arrangement portion in which the first heat transfer member is arranged, a heat transfer member disposing portion having an opening area on the first exhaust port side that is smaller than an opening area of ​​the first exhaust port;

6. The cold air generating device according to claim 1 or 2, a flow path body through which the first air flows, the flow path body having the first exhaust port; the flow path body has a heat transfer member arrangement portion in which the first heat transfer member is arranged, A cold air generating device, wherein the opening area of ​​the heat transfer member arrangement portion on the first exhaust port side is smaller than the opening area of ​​a cross section along a direction perpendicular to the heat absorption surface of a portion of the flow path body that is closer to the first exhaust port than the heat transfer member arrangement portion.

7. The cold air generating device according to claim 1 or 2, The second fan flows the second air toward the second heat transfer member in a direction perpendicular to the heat-generating surface.

8. The cold air generating device according to claim 1 or 2, A cool air generating device, wherein the rotation axis direction of the first fan and the rotation axis direction of the second fan are non-parallel to each other.

9. The cold air generating device according to claim 1 or 2, The cool air generating device can be attached to a mounting hole having a diameter of 88 mm or more and 92 mm or less provided on clothing.

10. The cold air generating device according to claim 1 or 2, At least one of the first fan and the second fan is detachable.

11. The cold air generating device according to claim 10, The cool air generating device can be attached to a mounting hole provided in the fabric, to which the at least one fan can be attached.

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