Clothing attachment structure for body ventilation device, and clothing with body ventilation device

Abstract

The present invention addresses the problem of providing: a clothing attachment structure for a body ventilation device that facilitates attachment of the body ventilation device to fabric forming clothing, and prevents the body ventilation device from becoming detached from the fabric forming the clothing due to an unforeseen situation; and clothing with the body ventilation device. To this end, in a clothing attachment structure for a body ventilation device (20) in which temperature-regulated air, which is air from a blower fan (45) that has passed from an upstream side to a downstream side of a blower-side heat sink (42A) formed on one surface (41a) of a Peltier element (41), is sent from a blowing port (30A) into a vest main body (2), the body ventilation device is attached to the fabric by connecting a protrusion (54) of a first ring fastener (50A) to a restricting portion (32) of an intake portion (26) and connecting a protrusion (54) of a second ring fastener (50B) to a restricting portion (32) of an exhaust portion (28) in a state in which the fabric is sandwiched between a surface (25) and a sandwiching surface (52).

Description

Clothes mounting structure for body blower, and clothes with body blower

[0001] The present disclosure relates to a clothes mounting structure for a body blower, which is directed to clothes with a body blower obtained by mounting a body blower that blows temperature-adjusted air, which is either cooled air or heated air after passing through fins, on clothing worn on the body such as jackets, vests, pants, etc., wherein the body blower comprises a Peltier element disposed inside a main body, fins formed on one surface of the Peltier element, and a blower fan that sends air to the fins, and also relates to clothes with a body blower configured with said structure. relates to.

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

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

[0004] Therefore, in recent years, clothes with air conditioning functions, portable air conditioners, and the like have been rapidly popularized, mainly targeting people seeking to cool off in such situations. Among such air conditioners, blowers using Peltier elements have also been developed. An example of such a blower is disclosed in Patent Document 1.

[0005] Patent Document 1 is a technical document disclosed in a patent application filed by the present applicant. The body blower disclosed in Patent Document 1 comprises a housing, a Peltier element arranged in the housing, cooling fins formed on one surface of the Peltier element, heat dissipation fins formed on the other surface opposite to the one surface, and a blower fan that sends air to the cooling fins and the heat dissipation fins. Furthermore, the body blower comprises an air intake port for taking air into the housing, a cool air outlet for blowing out cool air that has passed through the cooling fins, a heat dissipation port for discharging hot air that has passed through the heat dissipation fins, a first flange of the heat dissipation port, and a second flange of the cool air outlet.

[0006] In Patent Document 1, a second flange is inserted through an opening on the inside of the garment's pocket, and a reinforcing member is attached between the inner and outer surfaces of the opening and the second flange. In addition, Patent Document 1 also describes how a body ventilation device can be attached to a garment by inserting a first flange through an opening on the outside of the garment's pocket, and attaching a reinforcing member between the inner and outer surfaces of the opening and the first flange.

[0007] In a body-mounted ventilation device attached to clothing, a fan draws air into the housing through an air intake. Heat exchange occurs between the air and the cooling fins as the air passes through the fins. The air that passes through the cooling fins becomes cooler than before passing through the fins and is blown out as cold air from the cold air outlet. As a result, the wearer's body can be cooled by the cold air blown out by the body-mounted ventilation device attached to the clothing.

[0008] Patent No. 7290237

[0009] The technology described in Patent Document 1 has the following problems. The first problem is that, for example, it is necessary to insert flanges through the openings on the outside and inside of the pocket and attach and detach them from the inner and outer surfaces of the openings, making it time-consuming and inconvenient to use when attaching the body ventilation device to clothing. Furthermore, the second problem is that, for example, the structure does not involve clamping the inner and outer surfaces of the openings with flanges to attach the body ventilation device to the clothing, so there is a risk that the fabric of the clothing may be pulled during work and the body ventilation device may come off the clothing.

[0010] This disclosure was made to solve the above-mentioned problems, and aims to provide a garment attachment structure for a body-type ventilation device that facilitates the attachment of the body-type ventilation device to the fabric of the garment, and prevents the body-type ventilation device from detaching from the fabric of the garment due to unforeseen circumstances, as well as garment with a body-type ventilation device.

[0011] To solve the above problems, in one aspect of the present disclosure, a body ventilation device is provided, comprising: a main body having an air outlet; a Peltier element disposed in the internal space of the main body; a fin unit having a first fin; and a fan that blows air onto the first fin formed on one surface of the Peltier element, wherein the temperature-controlled air, which is either cold air or warm air that has passed from the upstream side to the downstream side of the air, is sent into the garment from the air outlet to the first fin, and in a garment attachment structure for a body ventilation device, an insertion hole is formed in the fabric for detachably attaching the body ventilation device, and the main body is front The Peltier element has a surface on the opposite side of the aforementioned surface with a plurality of openings formed thereon, and the body blower is provided with a plurality of fixing members that can be attached from the surface side, each of the fixing members having a connecting portion that can be connected to the opening and a clamping surface for sandwiching the surface and the fabric, each of the openings having a connected portion that can be connected to the connecting portion, and the body blower is attached to the fabric by connecting the connecting portion of the first fixing member to the connected portion of the first opening, and connecting the connecting portion of the second fixing member to the connected portion of the second opening, with the fabric sandwiched between the surface and the clamping surface.

[0012] Furthermore, the clothing referred to in this disclosure is a general term encompassing the concepts of (a), (b), and (c), which are broadly classified into (a) outer garments such as jackets, jumpers, suits, and vests; (b) underwear such as pants and trousers; and (c) items worn on the feet and legs such as socks and foot warmers.

[0013] According to this embodiment, the body ventilation device is attached to the fabric of the garment by sandwiching the fabric between the surface and the clamping surface, connecting the connection part of the first fixing member to the part to be connected in the first opening, and connecting the connection part of the second fixing member to the part to be connected in the second opening. This makes it easy for a person to attach the body ventilation device to the fabric of the garment, so that the body ventilation device can be properly attached to the fabric of the garment even in a hectic environment. Furthermore, even if the fabric of the garment worn by a person is pulled during work, for example, the body ventilation device is difficult to detach from the garment because the fabric is sandwiched between the surface and the clamping surface. Therefore, even if an unforeseen situation occurs during work, for example, the temperature of the person can be adjusted by sending temperature-controlled air into the garment from the air outlet of the body ventilation device attached to the fabric of the garment. Therefore, it is possible to easily attach the body ventilation device to the fabric of the garment, and to prevent the body ventilation device from detaching from the fabric of the garment due to unforeseen circumstances.

[0014] In the above embodiment, it is preferable that the first opening is an intake section in which an air intake port is formed for drawing air into the internal space of the main body, and the second opening is an exhaust section in which an exhaust port is formed for exhausting air to the outside of the main body.

[0015] In this embodiment, the body ventilation device is attached to the fabric of the garment by sandwiching the fabric between the surface and the clamping surface, connecting the connecting portion of the first fixing member to the connected portion of the intake portion, and connecting the connecting portion of the second fixing member to the connected portion of the exhaust portion. As a result, air is drawn in from the intake portion of the body ventilation device attached to the fabric of the garment into the internal space of the main body, and the air is exhausted to the outside of the main body from the exhaust portion of the body ventilation device. Therefore, while fulfilling the respective roles of the intake portion and exhaust portion, it is possible to prevent the body ventilation device from detaching from the fabric of the garment even if, for example, an unforeseen event occurs during work.

[0016] In the above embodiment, it is preferable that the first opening has a first outer peripheral wall formed perpendicularly from the surface with respect to a center line passing through the center of the inner region of the peripheral wall forming the first opening, and the second opening has a second outer peripheral wall formed perpendicularly from the surface with respect to a center line passing through the center of the inner region of the peripheral wall forming the second opening, and that the connecting portion is formed on the outer peripheral surface of the first outer peripheral wall and the outer peripheral surface of the second outer peripheral wall, and that the connecting portion is formed on the inner peripheral surface of the plurality of fixing members.

[0017] In this embodiment, with the fabric sandwiched between the surface and the clamping surface, the connection portion of the outer circumferential surface of the first outer circumferential wall, which is perpendicularly mounted from the surface to a center line passing through the center of the inner region of the peripheral wall forming the intake section, is connected to the connection portion of the inner circumferential surface of the first fixing member. At the same time, the connection portion of the outer circumferential surface of the second outer circumferential wall, which is perpendicularly mounted from the surface to a center line passing through the center of the inner region of the peripheral wall forming the exhaust section, is connected to the connection portion of the inner circumferential surface of the second fixing member, thereby attaching the body ventilation device to the fabric forming the garment. As a result, the first outer circumferential wall not only allows the body ventilation device to be attached to the fabric forming the garment, but also makes it easier for air from outside the main body to come into contact with the first outer circumferential wall and flow into the internal space of the main body. Therefore, it is possible to draw air from outside the main body into the internal space of the main body. Furthermore, the second outer circumferential wall not only allows the body ventilation device to be attached to the fabric forming the garment, but also makes it more difficult for air from the internal space of the main body to come into contact with the second outer circumferential wall and flow towards the wearer. This prevents the air exhausted from the internal space of the main unit to the outside from accumulating on the wearer's side. Therefore, it improves the efficiency of temperature control by the temperature-controlled air sent out from the air outlet of the body ventilation device, thereby providing comfort to the wearer through temperature control.

[0018] In the above embodiment, it is preferable that the internal space of the main body portion has an air supply region for the temperature-controlled air between the downstream side of the fin unit and the air outlet, and that the air supply region has a return inlet portion that communicates with a return channel capable of returning the temperature-controlled air to the upstream side of the first fin.

[0019] According to this embodiment, the temperature-controlled air can be recirculated from the recirculation inlet through the return channel to the upstream side of the first fin and supplied back to the first fin, so that the temperature-controlled air, including the recirculated temperature-controlled air, is blown out from the air outlet. It is also conceivable that this body ventilation device may be used in environments where the ambient temperature surrounding the body ventilation device and the temperature of the temperature-controlled air to be blown out differ significantly, for example, by more than 10 degrees Celsius. Even in such cases, the presence of the return channel allows the temperature-controlled air blown out from the air outlet to be heated to the desired temperature at a rate of temperature change several times faster than, for example, a conventional body ventilation device without a return channel, from the start of airflow. This makes it possible to quickly adjust the temperature inside the clothing worn by a worker in an environment with a large temperature difference of more than 10 degrees Celsius.

[0020] In the above embodiment, it is preferable that a recirculation outlet portion, which communicates with and connects to the return flow path, is formed in the internal space of the main body portion on the upstream side of the first fin, and that the air and the recirculated temperature-controlled air merge at the recirculation outlet portion.

[0021] According to this embodiment, the temperature-controlled air that has been recirculated upstream of the first fin can be sent back to the first fin by the airflow newly introduced from the intake port. Therefore, a means for sending the recirculated temperature-controlled air towards the first fin is unnecessary, and the recirculated temperature-controlled air can pass through the first fin with the newly introduced airflow. As a result, the temperature inside the clothing worn by workers in environments with large temperature differences, such as a difference of more than 10 degrees Celsius, can be adjusted more quickly.

[0022] In the above embodiment, it is preferable that the air supply area is provided with an airflow direction adjustment unit that divides the temperature-controlled airflow into the return inlet side and the air outlet side.

[0023] In this configuration, the temperature-controlled air that reaches the airflow area is reliably separated into a recirculation path leading to the recirculation inlet and an airflow path leading to the air outlet. As a result, the temperature-controlled air that flows into the recirculation path is recirculated through the return channel and returned to the upstream side of the first fin. On the other hand, the temperature-controlled air that flows into the airflow path is blown out to the outside from the air outlet. In this way, the airflow direction adjustment unit can appropriately adjust the flow of the temperature-controlled air, so that, for example, the temperature inside the clothing worn by a worker in an environment with a large temperature difference of more than 10 degrees Celsius can be appropriately adjusted.

[0024] In the above embodiment, at the branching point of the airflow direction adjustment section, if the cross-sectional area of ​​the temperature-controlled airflow flowing on the return inlet side is the first cross-sectional area Sr, the cross-sectional area of ​​the temperature-controlled airflow flowing on the outlet side is the second cross-sectional area Se, and the sum of the first cross-sectional area Sr and the second cross-sectional area Se is the total cross-sectional area S of the flow path, then it is preferable that the ratio k (%) of the first cross-sectional area Sr to the total cross-sectional area S of the flow path is 0 < k ≤ 50.

[0025] The body ventilation device according to this disclosure is able to ensure that the airflow of the temperature-controlled air blown out from the air outlet is sufficient to avoid adverse effects on the user without significantly reducing the airflow. In addition, the body ventilation device according to this disclosure is able to adjust the temperature of the blown temperature-controlled air to a temperature close to the desired temperature in a shorter time from the start of airflow. According to this embodiment, the temperature-controlled air, in which the flow rate and temperature of the temperature-controlled air are well-balanced, can appropriately regulate the temperature inside the clothing worn by a worker in an environment with a large temperature difference, for example, of more than 10 degrees Celsius.

[0026] In the above embodiment, it is preferable that the fin unit has a second fin formed on the opposite side of the Peltier element, and the blower fan, together with the first fin, blows the air onto the second fin.

[0027] In this embodiment, the Peltier element can suppress the decrease in cooling efficiency and heating efficiency over time on one and the opposite side, so that the temperature-controlled air can be continuously blown out at a stable temperature. As a result, for example, the temperature inside the clothing worn by a worker in an environment with a large temperature difference of more than 10 degrees Celsius can be stably controlled by the temperature-controlled air.

[0028] It is preferable that the garment has a body-blowing device attached to the garment, with the body-blowing device forming the garment attachment structure of the body-blowing device according to the above embodiment being detachably attached to the garment.

[0029] According to this embodiment, the attachment of a body-blower to a garment equipped with a body-blower, employing the garment attachment structure for the body-blower according to this disclosure, becomes easier, and the garment equipped with a body-blower can be provided to the wearer in a way that prevents the body-blower from detaching from the garment in unforeseen circumstances.

[0030] Therefore, the garment mounting structure for a body-type ventilation device and the garment with a body-type ventilation device according to this disclosure have the excellent effect of providing a garment mounting structure for a body-type ventilation device and a garment with a body-type ventilation device that facilitates the attachment of the body-type ventilation device to the fabric of the garment and prevents the body-type ventilation device from detaching from the fabric of the garment due to unforeseen circumstances.

[0031] Figure 1 is a front view of the outer surface of the temperature-regulating vest according to the embodiment, viewed from the front of the body. Figure 2 is a rear view of the outer surface of the temperature-regulating vest shown in Figure 1, viewed from the back of the body. Figure 3 is a front view of the inside of the temperature-regulating vest, viewed from the front of the body, when the body-type ventilation device is not attached. Figure 4 is a front view of the inside of the temperature-regulating vest shown in Figure 1, viewed from the front of the body. Figure 5 is a perspective view of the body-type ventilation device according to the embodiment, viewed from the front. Figure 5 is an exploded perspective view of the body-type ventilation device shown in Figure 5, viewed from the front. Figure 5 is a perspective view of the body-type ventilation device shown in Figure 5, viewed from the back. Figure 5 is an explanatory diagram showing the body-type ventilation device according to the embodiment disassembled into the main body and ring fastener. Figure 5 is an explanatory diagram showing the Peltier element unit in the body-type ventilation device. Figure 5 is an explanatory diagram showing how to attach the body-type ventilation device to the temperature-regulating vest. Figure 5 is an exploded view showing the outer surface of the outer wall of the intake section and the outer surface of the outer wall of the exhaust section laid out on a plane. Figure 7 is a side view of a body ventilation device, illustrating the state in which the fixed rail and projection are engaged in the first stage. Figure 7 is a side view of a body ventilation device, illustrating the state in which the fixed rail and projection are engaged in the second stage. Figure 7 is a side view of a body ventilation device, illustrating the state in which the fixed rail and projection are engaged in the third stage. Figure 7 is a cross-sectional view taken along the line B-B, a schematic diagram showing the airflow within the main body of the body ventilation device shown in Figure 5. Figure 6 is a cross-sectional view taken along the line A-A. Figure 6 is a plan view showing the inside of the main body of the body ventilation device shown in Figure 5, a schematic diagram showing the airflow after temperature control. Figure 7 is a cross-sectional view taken along the line C-C, a schematic diagram showing the airflow after temperature control and exhaust within the main body of the body ventilation device shown in Figure 5. Figure 7 is a cross-sectional view taken along the line D-D, a schematic diagram showing the airflow after temperature control returning towards the fan of the body ventilation device shown in Figure 5. This figure shows a table summarizing the relationship between the ambient temperature and the cold air temperature measured at each time interval in a verification experiment in which cold air was continuously blown for 30 minutes using the body ventilation devices according to the Examples and Comparative Examples 1 to 3. Following Figure 21, this figure shows a table summarizing the temperature difference per unit of time between the measured value of the cold air at an earlier time and the measured value at a later time interval in the verification experiment using the body ventilation devices according to the Examples and Comparative Examples 1 to 3.Figure 1 is an explanatory diagram illustrating the airflow from a body-mounted ventilation device attached to a temperature-regulating vest.

[0032] The personal ventilation device described herein is used for people who particularly need cool air, such as workers who work outdoors in extreme heat, workers who work in hot and humid indoor environments wearing work clothes, or people who engage in recreation, sports, or spectating in the blazing sun. Alternatively, the personal ventilation device is used for people who particularly need warm air, such as workers whose hands have become cold from doing water-related work in winter, or people who are exposed to cold winds outdoors and feel chilled while engaging in activities.

[0033] Hereinafter, this embodiment of the garment attachment structure for a body ventilation device and the garment with a body ventilation device according to the present disclosure will be described in detail with reference to the drawings.Hereinafter, the garment with a body ventilation device according to the present disclosure is constructed by attaching the body ventilation device to an insertion hole in the fabric that makes up the garment using the garment attachment structure for a body ventilation device according to the present disclosure.In this embodiment, the garment with a body ventilation device will be described as a vest worn on the upper body of the wearer.In this embodiment, the body ventilation device will be described as a body ventilation device 20.

[0034] <About Temperature-Controlled Vest 1> Figure 1 is a front view of the outer surface of the temperature-controlled vest according to the embodiment, viewed from the front of the garment. Figure 2 is a rear view of the outer surface of the temperature-controlled vest shown in Figure 1, viewed from the back of the garment. Figure 3 is a front view of the inside of the temperature-controlled vest, viewed from the front of the garment, when the body ventilation device is not attached. Figure 4 is a front view of the inside of the temperature-controlled vest shown in Figure 1, viewed from the front of the garment. In this embodiment, the garment with a body ventilation device according to the disclosure is referred to as temperature-controlled vest 1. In this embodiment, the body ventilation device according to the disclosure is referred to as body ventilation device 20.

[0035] As shown in Figures 1 to 4, the temperature-regulating vest 1 comprises a vest body 2 and a body ventilation device 20, etc. In this embodiment, as an example, there is one body ventilation device 20.

[0036] <About Vest Body 2> First, vest body 2 will be explained using Figures 1 to 4. As shown in Figures 1 and 2, vest body 2 is formed in the form of a vest (workwear without cuffs) having a front body 4 and a back body 5. However, this temperature-regulating vest 1 may also be workwear with long sleeves or short sleeves.

[0037] In the vest body 2, the fabric 3 is formed into a vest shape by an outer fabric 3A and an inner fabric 3B. Both the outer fabric 3A and the inner fabric 3B are made of synthetic resin fibers with excellent heat resistance, strength resistance, and breathability, such as nylon or polyester. However, it is not limited to these, and both the outer fabric 3A and the inner fabric 3B may be made of leather. The vest body 2 is provided with a collar portion 6 at the top that forms the neckline where the wearer's neck is located when worn. Armholes 7 (7A, 7B) are provided on the left and right sides of the vest body 2 through which the wearer's arms are inserted when worn. The first armhole portion 7A is the armhole through which the wearer's left arm is inserted when worn. The second armhole portion 7B is the armhole through which the wearer's right arm is inserted when worn.

[0038] As shown in Figure 1, the outer fabric 3A of the vest body 2 is provided with storage compartments 8 (first storage compartment 8A, second storage compartment 8B), which are, for example, pockets. The first storage compartment 8A and the second storage compartment 8B are located in the internal space formed between the outer fabric 3A and the inner fabric 3B.

[0039] The temperature-regulating vest 1 is configured such that when the zipper (not shown) located on the front panel 4 is opened, the entire inner fabric 3B of the back panel 5 of the vest body 2 can be seen from the front panel 4 side, as shown in Figures 3 and 4.

[0040] As shown in Figures 3 and 4, the mounting parts 10 to which the body ventilation device 20 can be attached are provided in two locations on the back of the temperature-regulating vest 1, below the collar area 6, near the area between the left and right shoulder blades 9. However, it is not limited to this, and for example, the mounting parts 10 may be provided in two locations on the waist area of ​​the back of the temperature-regulating vest 1. In addition, for example, the mounting parts 10 may be provided in two locations on the chest or abdomen of the front of the temperature-regulating vest 1 4.

[0041] As shown in Figure 3, the mounting portion 10 has an insertion hole 11 formed in the mounting portion 10 and an outer peripheral edge portion 12 around the insertion hole 11. The mounting portion 10 is sewn onto the back fabric 3B. The insertion hole 11 is a hole for detachably attaching the body ventilation device 20. As shown in Figure 3, the mounting portion 10 is made of a material with higher rigidity than the back fabric 3B (for example, leather) and is made of a fabric that does not allow air to pass through. The mounting portion 10 may also be made of rubber, resin, or other materials. As a result, a portion of the temperature-controlled air FL, FLr sent from the air outlet 30B of the body ventilation device 20 is guided towards the collar portion 6 without passing through the mounting portion 10.

[0042] <Overview of the Body Air Blower 20> First, an overview of the body air blower 20 according to this embodiment will be briefly explained using Figures 5 to 10.

[0043] Figure 5 is a perspective view of the body ventilation device according to the embodiment, viewed from the front side. Figure 6 is an exploded perspective view of the body ventilation device shown in Figure 5. Figure 7 is a plan view of the body ventilation device shown in Figure 5, viewed from the front side. Figure 8 is a perspective view of the body ventilation device shown in Figure 5, viewed from the back side. Figure 9 is an explanatory diagram showing the body ventilation device according to the embodiment disassembled into the main body and ring fastener. Figure 10 is an explanatory diagram showing the Peltier element unit included in the body ventilation device shown in Figure 5.

[0044] Furthermore, in the body blower 20 shown in FIG. 5, in FIG. 5, the lower left-upper right direction is defined as the Y-axis direction, the upper left-lower right direction is defined as the X-axis direction, and the vertical direction is defined as the Z-axis direction. This defined direction also applies to each figure from FIG. 6 onward. In addition, in each figure, illustrations of electrical wiring for the Peltier element 41 and the blower fan 45 and the power source are omitted.

[0045] As shown in FIGS. 5 to 8, the body blower 20 includes a control unit 21, a main body 22, a Peltier element unit 40, a blower fan 45, a reflux system 70, a plurality of ring fasteners 50 (a first ring fastener 50A, a second ring fastener 50B), and the like. For example, the first ring fastener 50A and the second ring fastener 50B correspond to the plurality of fixing members according to the present disclosure, the first ring fastener 50A corresponds to a first fixing member, and the second ring fastener 50B corresponds to a second fixing member. The Peltier element unit 40 includes a Peltier element 41, a heat sink unit 42, and a fin cover 44. For example, the heat sink unit 42 corresponds to the fin unit according to the present disclosure. For example, the main body 22 corresponds to the main body according to the present disclosure.

[0046] <Regarding Main Body 22> Next, the main body 22 will be described. As shown in FIGS. 5 to 10, the main body 22 includes a first housing portion 23 and a second housing portion 24 which are separate members. The main body 22 is formed in a mode having an internal space 22S by butting the first housing portion 23 and the second housing portion 24 opposite to each other, joining and integrating them.

[0047] The main body 22 is formed such that, with respect to a base portion formed in a substantially rectangular parallelepiped shape having rounded corners, a first return pipe portion 75 of the reflux system 70 is provided on one side of the long side portion along the Z-axis direction, protruding toward one side in the X-axis direction (lower right side in FIG. 5).

[0048] An internal space 22S is provided between the first housing portion 23 and the second housing portion 24. The first housing portion 23 is formed of a first plate portion 23a having an air intake portion 26, an exhaust portion 28, and a surface 25 of the main body portion 22. The air intake portion 26 and the exhaust portion 28 are formed on the surface 25 on the opposite side of one surface 41a of the Peltier element 41. For example, the air intake portion 26 and the exhaust portion 28 correspond to the plurality of openings according to the present disclosure. For example, the air intake portion 26 corresponds to the first opening and the air intake portion according to the present disclosure. For example, the exhaust portion 28 corresponds to the second opening and the exhaust portion according to the present disclosure. The Peltier element 41 corresponds to, for example, the Peltier element according to the present disclosure.

[0049] As shown in FIG. 5, the air intake portion 26 includes an air intake surface 26A formed with a plurality of (e.g., 32) air intake ports 26B, and an air intake outer peripheral wall 27 surrounding the outer periphery of the air intake surface 26A. The plurality of (e.g., 32) air intake ports 26B are openings for sucking air from the outside of the main body portion 22 into the internal space 22S of the main body portion 22. As shown in FIG. 6, the air intake outer peripheral wall 27 is vertically provided from the surface 25 to one side in the X-axis direction (lower left side in FIGS. 6 and 11) with respect to a center line AX1 passing through the center of the air intake surface 26A inside the peripheral wall forming the air intake portion 26. For example, the air intake port 26B corresponds to the air intake port according to the present disclosure. For example, the air intake outer peripheral wall 27 corresponds to the first outer peripheral wall according to the present disclosure, and for example, the outer peripheral surface 27A of the air intake outer peripheral wall 27 corresponds to the outer peripheral surface of the first outer peripheral wall.

[0050] As shown in FIG. 5, the exhaust portion 28 includes an exhaust surface 28A formed with a plurality of (e.g., 7) exhaust ports 28B, and an exhaust outer peripheral wall 29 surrounding the outer periphery of the exhaust surface 28A. The plurality of (e.g., 7) exhaust ports 28B are openings for exhausting air from the internal space 22S of the main body portion 22 to the outside of the main body portion 22. As shown in FIG. 6, the exhaust outer peripheral wall 29 is vertically provided from the surface 25 to one side in the X-axis direction (lower left side in FIGS. 6 and 11) with respect to a center line AX2 passing through the center of the exhaust surface 28A inside the peripheral wall forming the exhaust portion 28. The exhaust port 28B corresponds to the exhaust port according to the present disclosure. The exhaust outer peripheral wall 29 corresponds to the second outer peripheral wall according to the present disclosure, and the outer peripheral surface 29A of the exhaust outer peripheral wall 29 corresponds to the outer peripheral surface of the second outer peripheral wall.

[0051] The intake port 26B and exhaust port 28B in the first housing portion 23 are formed by opening a part of the first plate portion 23a. The intake port 26B and exhaust port 28B are formed at positions spaced apart in the Z-axis direction.

[0052] The second housing portion 24 consists of a second plate portion 24a having a back surface 80 of the main body portion 22. The back surface 80 has an air blower portion 30. The air blower portion 30 is formed by recessing a part of the second plate portion 24a toward the surface 25 side, i.e., one side in the Y-axis direction (upper left side in Figure 8). The air blower portion 30 has an air blower surface 30A on which a plurality (for example, 14) of air outlets 30B are formed, which are inclined toward the surface 25 side, i.e., one side in the Y-axis direction (upper left side in Figure 8) and open. As a result, the temperature-controlled air FL, FLr sent out from the air outlets 30B formed on the air blower surface 30A of the body air blower device 20 attached to the temperature-controlled vest 1 can flow not only toward the back of the wearer HM, but also toward the collar portion 6. For example, the air outlets 30B correspond to the air outlets according to this disclosure.

[0053] Furthermore, as will be described in detail later, a recirculation system 70 is formed in the main body 22, as shown in Figures 5 to 8.

[0054] <Regarding the outer peripheral wall 27 of the intake section and the outer peripheral wall 29 of the exhaust section> Next, the outer peripheral wall 27 of the intake section and the outer peripheral wall 29 of the exhaust section will be explained using Figure 9. In the body ventilation device 20 shown in Figure 9, the central direction L is defined as the direction along the center line AX1 passing through the center of the intake section surface 26A on the inside of the peripheral wall forming the intake section 26, and the center line AX2 passing through the center of the exhaust section surface 28A on the inside of the peripheral wall forming the exhaust section 28. Furthermore, the upper part of the vertical direction of the central direction L is defined as the upper side Lp, the lower part as the lower side Lw, the circumferential direction as the circumferential direction CR, and the anti-circumferential direction as ACR, and these directions are defined in Figures 12 to 15 as well as in the directions defined in Figure 9.

[0055] As shown in Figure 9, a fixed rail 31 is provided on the outer circumferential surface 27A of the outer circumferential wall 27 of the intake section. As shown in Figure 9, the fixed rail 31 faces toward the surface 25, and multiple (for example, 4) fixed rails are provided at different positions in the circumferential direction of the center line AX1 of the intake section surface 26A between one end 31a and the other end 31b (see Figures 11 and 12). As shown in Figure 9, mounting grooves 35 are provided between each of the multiple fixed rails 31 and the first plate section 23a. The multiple (for example, 4) mounting grooves 35 are provided along the circumferential direction CR of the intake section surface 26A. Adjacent fixed rails 31 in the circumferential direction CR are arranged at the same height in the central direction L (see Figures 9 and 12). As shown in Figure 9, the four fixed rails 31 have gaps 34 between them, with intermittently adjacent fixed rails 31. Multiple gaps 34 (for example, 4) are provided in the outer peripheral wall 27 of the intake section. As shown in Figure 9, the gaps 34 are connected to the mounting grooves 35. For example, the fixed rail 31 corresponds to the connected portion according to this disclosure.

[0056] As shown in Figure 9, fixed rails 31 are provided on the outer circumferential surface 29A of the outer circumferential wall 29 of the exhaust section. As shown in Figure 9, the fixed rails 31 face toward the surface 25, and multiple (for example, 4) are provided at different positions in the circumferential direction of the center line AX2 of the exhaust section surface 28A between one end 31a and the other end 31b (see Figures 11 and 12). As shown in Figure 9, mounting grooves 35 are provided between each of the multiple fixed rails 31 and the first plate portion 23a. The multiple (for example, 4) mounting grooves 35 are provided along the circumferential direction CR of the exhaust section surface 28A. Adjacent fixed rails 31 in the circumferential direction CR are arranged at the same height in the central direction L (see Figures 9 and 12). As shown in Figure 9, the four fixed rails 31 have gaps 34 between them, with intermittently adjacent fixed rails 31. Multiple gaps 34 (for example, 4) are provided in the outer periphery wall 29 of the exhaust section. As shown in Figure 9, the gaps 34 are connected to the mounting grooves 35.

[0057] As shown in Figure 9, the multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) are formed to be freely fastened to or released from the outer surface 27A of the outer wall 27 of the intake section and the outer surface 29A of the outer wall 29 of the exhaust section. The multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) can be attached from the surface 25 side and can engage with the intake section 26 and the exhaust section 28. The multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) are made of synthetic resin and are equipped with an annular outer flange 51 formed in a substantially polygonal shape. As shown in Figure 9, the outer flange 51 has 12 elliptical holes formed therein. The inner diameter of the multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) is larger than the outer diameter of the outer wall 27 of the intake section and the outer diameter of the outer wall 29 of the exhaust section. Each of the multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) has a clamping surface 52 on the opposite side of the surface where 12 elliptical holes are formed, which faces the surface 25 and clamps the back fabric 3B and the outer edge 12. This clamping surface 52 is a surface for clamping the surface 25, the back fabric 3B, and the outer edge 12.

[0058] Multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) have projections 54 on their inner circumferential surfaces that can be connected to each of the multiple fixed rails 31. Multiple projections 54 (for example, four) are provided on the multiple ring fasteners 50 (first ring fastener 50A, second ring fastener 50B) at intervals in the circumferential direction CR. Each of the multiple projections 54 can engage with each of the multiple restricting portions 32 of the multiple fixed rails 31. Adjacent projections 54 in the circumferential direction CR and each other are arranged at the same height in the central direction L. The multiple projections 54 are inclined toward the clamping surface 52 with respect to a virtual plane perpendicular to the center line AX1 of the intake surface 26A and the center line AX2 of the exhaust surface 28A, with an inclination angle θ2 of 3°. This makes it easy for each of the multiple projections 54 to connect to each of the multiple fixed rails 31. For example, the projection 54 corresponds to the connecting portion according to this disclosure.

[0059] <About the blower fan 45> Next, the blower fan 45 will be described. The blower fan 45 blows air toward the heat sink unit 42. As shown in Figure 6, in this embodiment, the blower fan 45 is a type of centrifugal fan, a multi-blade blower (sirocco fan) with suction capabilities. A sirocco fan is a substantially cylindrical shape in which multiple blades are arranged in a ring along its circumferential direction with respect to its central axis of rotation, and it blows out radially outward from between the rotating blades after drawing in air along the central axis. For example, the blower fan 45 corresponds to the blower fan according to this disclosure.

[0060] The blower fan 45 has an intake section 48 between the blades 46 and the drive unit 47. Air is drawn in from the intake port 26B to the intake section 48. The blower fan 45 is positioned in the internal space 22S of the main body 22, aligned with the position of the intake port 26B, and is provided with the outer periphery of the blades 46 surrounded by the fan outer wall 49.

[0061] Incidentally, unlike axial-flow fans such as propeller fans and turbo fans, sirocco fans are less affected by external disturbances such as wind direction and strength in the air they draw in, and because they use centrifugal force acting on the drawn-in air to blow air, they also produce less noise when operating.

[0062] On the other hand, since a sirocco fan uses centrifugal force acting on the inhaled air due to the rotation of multiple blades to blow air, the airflow force of a sirocco fan is generally smaller than that of axial flow fans such as propeller fans and turbo fans. For this reason, in the internal space 22S of the body blower device 20 according to this embodiment, the main body 22 is provided with a width-reducing flow path 63 formed by the outer peripheral wall 49 of the fan between the blower fan 45 and the Peltier element unit 40.

[0063] In the narrowed airflow channel 63, the airflow channel width n (0 < n) is narrower than the airflow channel width m (0 < n < m) passing through the rotational axis O of the blower fan 45, so that the airflow force due to the airflow pressure, flow velocity, etc., is greater than the airflow from the blower fan 45, i.e., the airflow after temperature control FL.

[0064] The ratio of the flow path width n to the flow path width m is preferably, for example, within the range of 25% or more and 75% or less. This is because it allows for a good balance between increasing the airflow force from the blower fan 45 and ensuring that the airflow from the blower fan 45 is evenly distributed to the two Peltier element units 40.

[0065] <About the Peltier element unit 40> Next, the Peltier element unit 40 will be explained. As shown in Figure 6, two Peltier element units 40 are arranged inside the main body 22. As mentioned above, the Peltier element unit 40 has a Peltier element 41, a heat sink unit 42, and a fin cover 44.

[0066] As shown in Figure 10, the Peltier element 41 is a type of plate-shaped semiconductor thermoelectric element having one surface 41a and the other surface 41b opposite to it. The Peltier element 41 is electrically connected to the control unit 21 and a power supply (not shown) via a power supply port 36 (see Figure 19). For example, one surface 41a of the Peltier element 41 corresponds to one surface of the Peltier element according to this disclosure, and the other surface 41b of the Peltier element 41 corresponds to the opposite surface of the Peltier element according to this disclosure.

[0067] When a DC current is supplied from the power source to the Peltier element 41, due to the Peltier effect, one surface 41a absorbs heat and becomes a cooling surface, while the other surface 41b generates heat and becomes a heating surface. Furthermore, when the direction of the supplied DC current is reversed by the control unit 21, the other surface 41b of the Peltier element 41 absorbs heat and becomes a cooling surface, while the one surface 41a generates heat and becomes a heating surface.

[0068] In other words, in the Peltier element 41, when the control unit 21 reverses the direction of the DC current supplied to the Peltier element 41, the cooling surface and the heating surface are swapped between one surface 41a and the other surface 41b.

[0069] The Peltier element 41 has the characteristic of simultaneously absorbing and generating heat at temperatures with a relative temperature difference from the ambient temperature, for example, within a temperature range of 20 to 50°C. That is, for example, when the Peltier element 41 absorbs and generates heat under an ambient temperature of 35°C in summer, the cooling surface will exhibit a temperature of 15 to -15°C, and this heat will be used to cool the body. At the same time, the heating surface will exhibit a temperature of 55 to 85°C, and this heat will be used as waste heat.

[0070] On the other hand, when the Peltier element 41 absorbs and generates heat under an ambient temperature of 5°C in winter, the cooling surface exhibits a temperature of -15 to -45°C, and this heat is dissipated. Simultaneously, the heating surface exhibits a temperature of 25 to 55°C, and this heat becomes warmth for the body.

[0071] In this embodiment, a Peltier element 41 having a temperature characteristic that absorbs and generates heat simultaneously in a temperature range of approximately 20 to 50°C in comparison to the ambient temperature was given as an example.

[0072] However, the Peltier element is not limited to the temperature characteristics described in this embodiment. It may be configured with appropriate modifications as long as the temperature characteristics can cool the body to a degree that does not cause frostbite and warm the body to a degree that does not cause burns, using the temperature-controlled airflow FL described later. For example, the temperature characteristics of the Peltier element may have a temperature range of about 10 to 40°C or 10 to 20°C in relation to the ambient temperature.

[0073] As shown in Figure 10, the heat sink unit 42 consists of a blower-side heat sink 42A and an exhaust-side heat sink 42B. The blower-side heat sink 42A corresponds to the first fin according to this disclosure, and the exhaust-side heat sink 42B corresponds to the second fin according to this disclosure. The blower-side heat sink 42A and the exhaust-side heat sink 42B are a pair.

[0074] The blower-side heat sink 42A is formed to be large enough to contact almost the entire surface 41a of the Peltier element 41, and consists of countless fins that are folded back in a roughly corrugated shape, with gaps between adjacent fins, and is erected vertically from the flat plate portion 42Aa.

[0075] The exhaust-side heat sink 42B is formed to be large enough to contact almost the entire surface 41b of the Peltier element 41, and is erected vertically from the flat plate portion 42Ba with numerous fins that are folded back in a roughly corrugated shape, with gaps between adjacent fins.

[0076] In the Peltier element unit 40, as shown in Figure 10, the surface of the flat plate portion 42Aa of the blower-side heat sink 42A and one surface 41a of the Peltier element 41 are positioned opposite each other so as to be in surface contact with each other. Similarly, the surface of the flat plate portion 42Ba of the exhaust-side heat sink 42B and the other surface 41b of the Peltier element 41 are positioned opposite each other so as to be in surface contact with each other.

[0077] However, strictly speaking, due to the difference in precision between the surface shape of the flat plate portion 42Aa of the blower-side heat sink 42A and the surface shape of one surface 41a of the Peltier element 41, there is a small gap (air gap) between the surface of the flat plate portion 42Aa and the surface 41a. Similarly, due to the difference in precision between the surface shape of the flat plate portion 42Ba of the exhaust-side heat sink 42B and the surface shape of the other surface 41b of the Peltier element 41, there is a small gap (air gap) between the surface of the flat plate portion 42Ba and the other surface 41b.

[0078] Therefore, a grease layer 43 is interposed between the Peltier element 41 and the blower-side heat sink 42A, and between the Peltier element 41 and the exhaust-side heat sink 42B, filling these gaps with grease. The grease, for example, has relatively high thermal conductivity, such as satisfying a thermal conductivity of at least 5 W / m·K, and maintains a relatively high viscosity within a temperature range of approximately 0 to 100°C.

[0079] By providing the grease layer 43, the heat generated by the Peltier element 41 is transferred to the heat sink unit 42 with reduced heat transfer loss on one surface 41a and the other surface 41b.

[0080] In this embodiment, the body ventilation device 20 is configured with two Peltier element units 40 arranged side by side. However, the number of Peltier element units, each having a Peltier element, a first fin, and a second fin, is not limited to two, and can be varied in various ways, such as one unit or three or more units.

[0081] Furthermore, the body ventilation device 20 according to this embodiment is configured with two Peltier element units 40 placed side by side, with each of the two Peltier elements exhibiting heat absorption and heat generation. On the other hand, the Peltier element unit can also be configured with one large Peltier element, for example, having heat absorption and heat generation characteristics similar to those of two small Peltier elements.

[0082] However, when comparing the first condition, which uses one large Peltier element, with the second condition, which uses two small Peltier elements, the second condition sometimes exhibits a better response in terms of heat absorption and heat generation by the Peltier elements than the first condition. For this reason, the body ventilation device 20 according to this embodiment is configured with two Peltier element units 40 placed side by side.

[0083] Furthermore, as shown in Figure 10, the Peltier element unit 40 is configured such that the fin cover 44 surrounds the entire area around the blower-side heat sink 42A and the exhaust-side heat sink 42B that are in contact with the Peltier element 41.

[0084] <Regarding the attachment of the body ventilation device 20> The attachment of the body ventilation device 20 to the temperature-controlled vest 1 will be explained using Figure 11. Figure 11 is an explanatory diagram showing how to attach the body ventilation device to the temperature-controlled vest.

[0085] As shown in Figure 11, when attaching the body ventilation device 20, the person inserts the outer peripheral wall 27 of the intake section of the body ventilation device 20 from the inside 10a of the attachment section 10 into the insertion hole 11 formed in the attachment section 10 and into the fabric insertion hole 3C of the back fabric 3B. As shown in Figure 11, when attaching the body ventilation device 20, the person inserts the outer peripheral wall 29 of the exhaust section of the body ventilation device 20 from the inside 10a of the attachment section 10 into the insertion hole 11 formed in the attachment section 10 and into the fabric insertion hole 3C of the back fabric 3B.

[0086] Next, the person positions the outer periphery wall 27 of the intake section and the outer periphery wall 29 of the exhaust section within the insertion hole 11 and the insertion hole 3C for the fabric in the back garment 3B, respectively, and then brings the surface 25 into contact with the outer edge 13. As a result, the outer periphery wall 27 of the intake section and the outer periphery wall 29 of the exhaust section are positioned within the insertion hole 11 and the insertion hole 3C for the fabric in the back garment 3B, respectively, with the surface 25 in contact with the outer edge 13.

[0087] Next, the person first inserts the outer peripheral wall 27 of the intake section into the inside of the first ring fastener 50A, and then inserts each of the multiple protrusions 54 of the first ring fastener 50A into each of the multiple gaps 34 on the outer peripheral surface 27A of the outer peripheral wall 27 of the intake section. As a result, the back fabric 3B and the outer peripheral edge 12 are sandwiched between the surface 25 and the outer flange 51 of the first ring fastener 50A.

[0088] Next, the person rotates the main body 22 and the first ring fastener 50A relative to the intake surface 26A in the circumferential direction CR, causing each projection 54 to enter the mounting groove 35 on the outer surface 27A of the outer wall 27 of the intake section. Furthermore, the person rotates the main body 22 and the first ring fastener 50A relative to the intake surface 26A in the circumferential direction CR, causing each projection 54 to slide along the circumferential direction CR of the intake surface 26A on the respective fixing rails 31. Subsequently, the person rotates the main body 22 and the first ring fastener 50A relative to the intake surface 26A in the circumferential direction CR, causing the multiple projections 54 to overcome the multiple restricting parts 32 provided on each of them. When each of the multiple protrusions 54 overcomes each of the multiple restricting portions 32, the multiple restricting portions 32 restrict the movement of the multiple protrusions 54 in the anticircumferential direction ACR of the intake surface 26A. The protrusions 54 that have overcome the restricting portion 32 and stopped moving are fixed by engaging with the restricting portion 32 through surface contact. As a result, the back fabric 3B and the outer peripheral edge 12 are fixed in a state where they are sandwiched between the surface 25 and the outer flange 51.

[0089] Next, the person inserts the outer peripheral wall 29 of the exhaust section into the inside of the second ring fastener 50B, and inserts each of the multiple protrusions 54 of the second ring fastener 50B into each of the multiple gaps 34 on the outer peripheral surface 29A of the outer peripheral wall 29 of the exhaust section. As a result, the back fabric 3B and the outer peripheral edge 12 are sandwiched between the surface 25 and the outer flange 51 of the second ring fastener 50B.

[0090] Next, the person rotates the main body 22 and the second ring fastener 50B relative to the exhaust section surface 28A in the circumferential direction CR, causing each projection 54 to enter the mounting groove 35 on the outer peripheral surface 29A of the outer peripheral wall 29 of the exhaust section. Furthermore, the person rotates the main body 22 and the second ring fastener 50B relative to the exhaust section surface 28A in the circumferential direction CR, causing each projection 54 to slide along the circumferential direction CR of the exhaust section surface 28A on the respective fixed rails 31. Subsequently, the person rotates the main body 22 and the second ring fastener 50B relative to the exhaust section surface 28A in the circumferential direction CR, causing the multiple projections 54 to overcome the multiple restricting parts 32 provided on each of them. When each of the multiple protrusions 54 overcomes each of the multiple restricting portions 32, the multiple restricting portions 32 restrict the movement of the multiple protrusions 54 in the anticircumferential direction ACR of the exhaust portion surface 28A. The protrusions 54 that have overcome the restricting portion 32 and stopped moving are fixed by engaging with the restricting portion 32 through surface contact. As a result, the back fabric 3B and the outer peripheral edge 12 are fixed in a state where they are sandwiched between the surface 25 and the outer flange 51.

[0091] As shown in Figure 2, the body ventilation device 20 is attached to the back of the temperature-regulating vest 1, below the collar area 6, near the area between the left and right shoulder blades 9. In this case, cool or warm air is blown out from the air outlet 30B toward the collar area 6 (see Figure 23). This allows the cool or warm air blown out from the air outlet 30B to cool or warm, for example, the neck of the wearer HM.

[0092] <Regarding the fixed rails 31> The multiple fixed rails 31 provided on the outer peripheral wall 27 of the intake section and the outer peripheral wall 29 of the exhaust section will be explained using Figure 12. Figure 12 is an unfolded view showing the outer peripheral surface of the outer peripheral wall of the intake section and the outer peripheral surface of the outer peripheral wall of the exhaust section laid out on a plane.

[0093] As shown in Figure 12, each of the multiple fixed rails 31 has a sliding surface 33 that connects one end 31a of each fixed rail 31 to the other end 31b of each fixed rail 31 and contacts each of the projections 54 of the multiple ring fasteners 50. As shown in Figure 12, each of the sliding surfaces 33 of the multiple fixed rails 31 is provided with a plurality of (for example, 4) restricting portions 32. Each of the plurality of restricting portions 32 restricts the movement of the plurality of projections 54 that move along the sliding surface 33 toward the anticircumferential direction ACR of the intake surface 26A and the exhaust surface 28A. On the sliding surface 33 connecting one end 31a and the other end 31b of each fixed rail 31, restricting portions 32 are intermittently provided in the order of first restricting portion 32a ⇒ second restricting portion 32b ⇒ third restricting portion 32c ⇒ fourth restricting portion 32d.

[0094] As shown in Figure 12, the multiple fixed rails 31 are inclined toward the surface 25 along the center line AX1 of the intake surface 26A and the center line AX2 of the exhaust surface 28A. All of the multiple fixed rails 31 in this embodiment have an inclination angle θ1 of 3° between one end 31a and the other end 31b, as an example. As a result, all of the multiple fixed rails 31 in the first embodiment are formed in an inclined manner with a height difference △H in the central direction L between one end 31a and the other end 31b.

[0095] <Regarding the thickness of the fabric sandwiched between the surface 25 and the outer flange 51> Using Figures 13 to 15, the points where the projection 54 is engaged and fixed will be explained according to the thickness of the fabric sandwiched between the surface 25 and the outer flange 51. Figure 13 is a side view of the body ventilation device and is an explanatory diagram showing the state in which the fixing rail and the projection are engaged in the first stage. Figure 14 is a side view of the body ventilation device and is an explanatory diagram showing the state in which the fixing rail and the projection are engaged in the second stage. Figure 15 is a side view of the body ventilation device and is an explanatory diagram showing the state in which the fixing rail and the projection are engaged in the third stage.

[0096] Using Figure 13, we will explain the case in which each of the multiple protrusions 54 overcomes the first restricting portion 32a of the respective fixed rail 31, and the fixed rail 31 and the protrusion 54 engage in the first stage.

[0097] When the thickness of the fabric of the temperature-regulating vest 1 is X1 (for example, about 2.2 mm), with the fabric sandwiched between the surface 25 and the outer flange 51, the person moves the outer peripheral wall 27 of the intake section into the inside of the first ring fastener 50A. As a result, each of the multiple protrusions 54 enters each of the multiple gaps 34. Next, when the person rotates the main body 22 and the ring fastener 50 relative to the circumferential direction CR of the intake section surface 26A, each of the protrusions 54 of the first ring fastener 50A enters the mounting groove 35 from one end 31a of the fixed rail 31. Furthermore, when the person rotates the main body 22 and the first ring fastener 50A relative to the circumferential direction CR of the intake section surface 26A, each of the multiple protrusions 54 slides along the circumferential direction CR of the intake section surface 26A on their respective fixed rails 31. As the main body 22 and the first ring fastener 50A are rotated relative to each other by, for example, 15 degrees along the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 will overcome each of the multiple first restricting portions 32a. Each of the first restricting portions 32a that the protrusions 54 overcome restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the intake surface 26A. The angle by which the main body 22 and the first ring fastener 50A are rotated relative to each other along the circumferential direction CR of the intake surface 26A in order for each of the multiple protrusions 54 to overcome each of the multiple first restricting portions 32a is not limited to 15 degrees. For example, it is preferable to have an angle between 15 and 20 degrees.

[0098] As shown in Figure 13, in the first stage, each of the multiple protrusions 54 whose movement in the circumferential direction CR of the intake surface 26A has stopped is fixed by engaging with each of the multiple first restricting parts 32a through surface contact. In this case, the fabric of the temperature-regulating vest 1, with a thickness of X1 (for example, about 2.2 mm), is sandwiched between the surface 25 and the outer flange 51. To release the body ventilation device 20, the person rotates the main body 22 and the first ring fastener 50A relative to each other by, for example, 15 degrees in the counter-circumferential direction ACR of the intake surface 26A, so that each of the multiple protrusions 54 overcomes each of the first restricting parts 32a.

[0099] Next, when the thickness of the fabric of the temperature-regulating vest 1 is X1 (for example, about 2.2 mm), with the fabric sandwiched between the surface 25 and the outer flange 51, the person moves the outer peripheral wall 29 of the exhaust section into the inside of the second ring fastener 50B. As a result, each of the multiple protrusions 54 enters each of the multiple gaps 34. Next, when the person rotates the main body 22 and the second ring fastener 50B relative to the circumferential direction CR of the exhaust section surface 28A, each of the protrusions 54 of the second ring fastener 50B enters the mounting groove 35 from one end 31a of the fixed rail 31. Furthermore, when the person rotates the main body 22 and the second ring fastener 50B relative to the circumferential direction CR of the exhaust section surface 28A, each of the multiple protrusions 54 slides along the circumferential direction CR of the exhaust section surface 28A on their respective fixed rails 31. As the main body 22 and the second ring fastener 50B are rotated relative to each other by, for example, 15 degrees along the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 will overcome each of the multiple first restricting portions 32a. Each of the first restricting portions 32a that the protrusions 54 overcome restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the exhaust surface 28A. The angle by which the main body 22 and the second ring fastener 50B are rotated relative to each other along the circumferential direction CR of the exhaust surface 28A in order for each of the multiple protrusions 54 to overcome each of the multiple first restricting portions 32a is not limited to 15 degrees. For example, it is preferable to have an angle between 15 and 20 degrees.

[0100] As shown in Figure 13, in the first stage, each of the multiple protrusions 54 whose movement in the circumferential direction CR of the exhaust surface 28A has stopped is fixed by engaging with each of the multiple first restricting parts 32a through surface contact. In this case, the fabric of the temperature-controlled vest 1, with a thickness of X1 (for example, about 2.2 mm), is sandwiched between the surface 25 and the outer flange 51. As a result, as shown in Figure 13, the body ventilation device 20 is attached to the temperature-controlled vest 1. To release the body ventilation device 20, the person rotates the main body 22 and the second ring fastener 50B relative to each other by, for example, 15 degrees in the counter-circumferential direction ACR of the exhaust surface 28A, so that each of the multiple protrusions 54 overcomes each of the first restricting parts 32a.

[0101] Using Figure 14, we will explain the case in which each of the multiple protrusions 54 overcomes the second restricting portion 32b of the respective fixed rail 31, and the fixed rail 31 and the protrusion 54 engage in the second stage.

[0102] When the thickness of the fabric of the temperature-regulating vest 1 is X2 (for example, about 1.54 mm), with the fabric sandwiched between the surface 25 and the outer flange 51, the person moves the outer peripheral wall 27 of the intake section into the inside of the first ring fastener 50A. As a result, each of the multiple protrusions 54 enters each of the multiple gaps 34. Next, when the person rotates the main body 22 and the ring fastener 50 relative to the intake section surface 26A in the circumferential direction CR, each of the protrusions 54 of the first ring fastener 50A enters the mounting groove 35 from one end 31a of the fixed rail 31. Furthermore, when the person rotates the main body 22 and the first ring fastener 50A relative to the intake section surface 26A in the circumferential direction CR, each of the multiple protrusions 54 slides along the circumferential direction CR of the intake section surface 26A on their respective fixed rails 31. As the main body 22 and the first ring fastener 50A are rotated relative to each other by, for example, 15 degrees along the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 will move over each of the multiple first restricting portions 32a. Each of the first restricting portions 32a that the protrusions 54 have moved over restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the intake surface 26A.

[0103] Furthermore, if a person rotates the main body 22 and the first ring fastener 50A relatively by, for example, 15 degrees along the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 slides over them and overcomes each of the multiple second restricting portions 32b. Each of the second restricting portions 32b that the protrusions 54 overcome restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the intake surface 26A. The angle at which the main body 22 and the first ring fastener 50A are rotated relatively along the circumferential direction CR of the intake surface 26A in order for each of the multiple protrusions 54 to overcome each of the multiple second restricting portions 32b is not limited to 15 degrees. For example, it is preferable to have an angle between 15 and 20 degrees.

[0104] As shown in Figure 14, in the second stage, each of the multiple protrusions 54 whose movement in the circumferential direction CR of the intake surface 26A has stopped is fixed by engaging with each of the multiple second restricting parts 32b through surface contact. In this case, the fabric of the temperature-regulating vest 1, with a thickness of X2 (for example, about 1.54 mm), is sandwiched between the surface 25 and the outer flange 51. To release the body ventilation device 20, the person rotates the main body 22 and the first ring fastener 50A relative to each other by, for example, 30 degrees in the counter-circumferential direction ACR of the intake surface 26A. This allows each of the multiple protrusions 54 to overcome the first restricting part 32a and the second restricting part 32b, respectively.

[0105] Next, when the thickness of the fabric of the temperature-regulating vest 1 is X2 (for example, about 1.54 mm), with the fabric sandwiched between the surface 25 and the outer flange 51, the person moves the outer peripheral wall 29 of the exhaust section into the inside of the second ring fastener 50B. As a result, each of the multiple protrusions 54 enters each of the multiple gaps 34. Next, when the person rotates the main body 22 and the second ring fastener 50B relative to the circumferential direction CR of the exhaust section surface 28A, each of the protrusions 54 of the second ring fastener 50B enters the mounting groove 35 from one end 31a of the fixed rail 31. Furthermore, when the person rotates the main body 22 and the second ring fastener 50B relative to the circumferential direction CR of the exhaust section surface 28A, each of the multiple protrusions 54 slides along the circumferential direction CR of the exhaust section surface 28A on their respective fixed rails 31. As the main body 22 and the second ring fastener 50B are rotated relative to each other by, for example, 15 degrees along the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 will move over each of the multiple first restricting portions 32a. Each of the first restricting portions 32a that the protrusions 54 move over restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the exhaust surface 28A.

[0106] Furthermore, if a person rotates the main body 22 and the ring fastener 50 relative to each other by, for example, 15 degrees along the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 slides over them and overcomes each of the multiple second restricting portions 32b. Each of the second restricting portions 32b that the protrusions 54 overcome restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the exhaust surface 28A. The angle at which the main body 22 and the second ring fastener 50B rotate relative to each other along the circumferential direction CR of the exhaust surface 28A in order for each of the multiple protrusions 54 to overcome each of the multiple second restricting portions 32b is not limited to 15 degrees. For example, it is preferable to have an angle between 15 and 20 degrees.

[0107] As shown in Figure 14, in the second stage, each of the multiple protrusions 54 whose movement in the circumferential direction CR of the exhaust surface 28A has stopped is fixed by engaging with each of the multiple second restricting parts 32b through surface contact. In this case, the fabric of the temperature-controlled vest 1, with a thickness of X2 (for example, about 1.54 mm), is sandwiched between the surface 25 and the outer flange 51. As a result, as shown in Figure 14, the body ventilation device 20 is attached to the temperature-controlled vest 1. To release the body ventilation device 20, the person rotates the main body 22 and the ring fastener 50 relative to each other by, for example, 30 degrees in the counter-circumferential direction ACR of the exhaust surface 28A, so that each of the multiple protrusions 54 overcomes the first restricting part 32a and the second restricting part 32b, respectively.

[0108] Using Figure 15, we will explain the case in which each of the multiple protrusions 54 overcomes the third restricting portion 32c of the respective fixed rail 31, and the fixed rail 31 and the protrusion 54 engage in the third stage.

[0109] When the thickness of the fabric of the temperature-regulating vest 1 is X3 (for example, about 0.89 mm), with the fabric sandwiched between the surface 25 and the outer flange 51, the person moves the outer peripheral wall 27 of the intake section into the inside of the first ring fastener 50A. As a result, each of the multiple protrusions 54 enters each of the multiple gaps 34. Next, when the person rotates the main body 22 and the first ring fastener 50A relative to the circumferential direction CR of the intake section surface 26A, each of the protrusions 54 of the first ring fastener 50A enters the mounting groove 35 from one end 31a of the fixed rail 31. Furthermore, when the person rotates the main body 22 and the first ring fastener 50A relative to the circumferential direction CR of the intake section surface 26A, each of the multiple protrusions 54 slides along the circumferential direction CR of the intake section surface 26A on their respective fixed rails 31. As the main body 22 and the first ring fastener 50A are rotated relative to each other by, for example, 15 degrees along the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 will move over each of the multiple first restricting portions 32a. Each of the first restricting portions 32a that the protrusions 54 have moved over restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the intake surface 26A.

[0110] Furthermore, if a person rotates the main body 22 and the first ring fastener 50A relative to each other by, for example, 15 degrees along the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 slides over them and overcomes each of the multiple second restricting portions 32b. Each of the second restricting portions 32b that the protrusions 54 overcome restricts their movement in the counter-circumferential direction ACR of the intake surface 26A.

[0111] Furthermore, if a person rotates the main body 22 and the ring fastener 50 relative to each other by, for example, 15 degrees along the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 slides over them and overcomes each of the multiple third restricting portions 32c. Each of the third restricting portions 32c that the protrusions 54 overcome restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the intake surface 26A. The angle at which the main body 22 and the first ring fastener 50A rotate relative to each other along the circumferential direction CR of the intake surface 26A in order for each of the multiple protrusions 54 to overcome each of the multiple third restricting portions 32c is not limited to 15 degrees. For example, it is preferable to have an angle between 15 and 20 degrees.

[0112] As shown in Figure 15, in the third stage, each of the multiple protrusions 54, whose movement in the circumferential direction CR of the intake surface 26A has stopped, is fixed by engaging with each of the multiple third restricting parts 32c through surface contact. In this case, the fabric of the temperature-regulating vest 1, with a thickness of X3 (for example, about 0.89 mm), is sandwiched between the surface 25 and the outer flange 51. To release the body ventilation device 20, the person rotates the main body 22 and the first ring fastener 50A relative to each other by, for example, 45 degrees in the counter-circumferential direction ACR of the intake surface 26A. This allows each of the multiple protrusions 54 to move over each of the first restricting part 32a and the third restricting part 32c.

[0113] If each of the multiple protrusions 54 overcomes the third restricting portion 32c, even if the person rotates the main body 22 and the first ring fastener 50A relative to each other in the circumferential direction CR of the intake surface 26A, each of the multiple protrusions 54 cannot overcome each of the multiple fourth restricting portions 32d. This prevents the body ventilation device 20 from falling off the temperature-controlled vest 1 due to the relative rotation of the main body 22 and the first ring fastener 50A in the circumferential direction CR of the intake surface 26A.

[0114] Next, when the thickness of the fabric of the temperature-regulating vest 1 is X3 (for example, about 0.89 mm), with the fabric sandwiched between the surface 25 and the outer flange 51, the person moves the outer peripheral wall 29 of the exhaust section into the inside of the second ring fastener 50B. As a result, each of the multiple protrusions 54 enters each of the multiple gaps 34. Next, when the person rotates the main body 22 and the second ring fastener 50B relative to the circumferential direction CR of the exhaust section surface 28A, each of the protrusions 54 of the second ring fastener 50B enters the mounting groove 35 from one end 31a of the fixed rail 31. Furthermore, when the person rotates the main body 22 and the second ring fastener 50B relative to the circumferential direction CR of the exhaust section surface 28A, each of the multiple protrusions 54 slides along the circumferential direction CR of the exhaust section surface 28A on their respective fixed rails 31. As the main body 22 and the second ring fastener 50B are rotated relative to each other by, for example, 15 degrees along the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 will move over each of the multiple first restricting portions 32a. Each of the first restricting portions 32a that the protrusions 54 move over restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the exhaust surface 28A.

[0115] Furthermore, if a person rotates the main body 22 and the second ring fastener 50B relative to each other by, for example, 15 degrees along the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 slides over them and overcomes each of the multiple second restricting portions 32b. Each of the second restricting portions 32b that the protrusions 54 overcome restricts their movement in the counter-circumferential direction ACR of the exhaust surface 28A.

[0116] Furthermore, if a person rotates the main body 22 and the second ring fastener 50B relative to each other by, for example, 15 degrees along the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 slides over them and overcomes each of the multiple third restricting portions 32c. Each of the third restricting portions 32c that the protrusions 54 overcome restricts the movement of each protrusion 54 in the counter-circumferential direction ACR of the exhaust surface 28A. The angle by which the main body 22 and the second ring fastener 50B rotate relative to each other along the circumferential direction CR of the exhaust surface 28A in order for each of the multiple protrusions 54 to overcome each of the multiple third restricting portions 32c is not limited to 15 degrees. For example, it is preferable to have an angle between 15 and 20 degrees.

[0117] As shown in Figure 15, in the third stage, each of the multiple protrusions 54, whose movement in the circumferential direction CR of the exhaust surface 28A has stopped, is fixed by engaging with each of the multiple third restricting parts 32c through surface contact. In this case, the fabric of the temperature-controlled vest 1, with a thickness of X3 (for example, about 0.89 mm), is sandwiched between the surface 25 and the outer flange 51. As a result, as shown in Figure 15, the body ventilation device 20 is attached to the temperature-controlled vest 1. To release the body ventilation device 20, the person rotates the main body 22 and the second ring fastener 50B relative to each other by, for example, 45 degrees in the counter-circumferential direction ACR of the exhaust surface 28A. This allows each of the multiple protrusions 54 to move over each of the first restricting part 32a to the third restricting part 32c.

[0118] If each of the multiple protrusions 54 overcomes the third restricting portion 32c, even if the person rotates the main body 22 and the second ring fastener 50B relative to each other in the circumferential direction CR of the exhaust surface 28A, each of the multiple protrusions 54 cannot overcome each of the multiple fourth restricting portions 32d. This prevents the body ventilation device 20 from falling off the temperature-controlled vest 1 due to the relative rotation of the exhaust portion 28 and the second ring fastener 50B in the circumferential direction CR of the exhaust surface 28A.

[0119] When attaching the body ventilation device 20 according to this embodiment to the vest body 2, a person can attach the body ventilation device 20 to the temperature-controlled vest 1 by attaching two ring fasteners 50 to the outer peripheral wall 27 of the intake section and the outer peripheral wall 29 of the exhaust section with a single touch. This makes it easier to attach the body ventilation device 20 to the vest body 2 than when attaching a conventional body ventilation device to clothing, and prevents the body ventilation device 20 from coming off the vest body 2 even if the vest body 2 is pulled. Furthermore, by rotating the main body 22 and the first ring fastener 50A, and the main body 22 and the second ring fastener 50B relative to each other, the points of engagement with each of the multiple protrusions 54 can be changed in stages. As a result, if the thickness of the fabric of the temperature-controlled vest 1 is X1, each of the multiple protrusions 54 engages with each of the multiple first restricting sections 32a, allowing the body ventilation device 20 to be attached to the temperature-controlled vest 1. If the thickness of the fabric of the temperature-regulating vest 1 is X2, each of the multiple protrusions 54 engages with each of the multiple second restricting parts 32b, allowing the body ventilation device 20 to be attached to the temperature-regulating vest 1. If the thickness of the fabric of the temperature-regulating vest 1 is X3, each of the multiple protrusions 54 engages with each of the multiple third restricting parts 32c, allowing the body ventilation device 20 to be attached to the temperature-regulating vest 1. Therefore, regardless of the thickness of the fabric of the temperature-regulating vest 1, a person can attach the body ventilation device 20 to the temperature-regulating vest 1 in accordance with that thickness. Thus, it becomes easy to attach the body ventilation device 20 to the fabric of the temperature-regulating vest 1 according to this embodiment, improving the ease of use of the temperature-regulating vest 1. Furthermore, even if the back fabric 3B and the attachment part 10 are repeatedly sandwiched between the surface 25 and the multiple ring fasteners 50, the back fabric 3B and the attachment part 10 are less likely to undergo plastic deformation. Therefore, even if the body ventilation device 20 is attached to the temperature-regulating vest 1, it is possible to prevent rattling and damage to the inner garment fabric 3B and the attachment part 10.

[0120] <Regarding the temperature-controlled airflow FL> Figure 16 is a cross-sectional view taken along the line B-B in Figure 7, and is a schematic diagram showing the airflow within the main body of the body-use air blower shown in Figure 5. As shown in Figures 6 and 16, the internal space 22S of the main body 22 is divided into two spaces, upper and lower (in the Y-axis direction in Figure 17), by a first partition member 61 and a second partition member 62, with the Peltier element 41 of the Peltier element unit 40 as the boundary. The first partition member 61 is positioned between the blower fan 45 and the upstream end Fa of the Peltier element unit 40.

[0121] Figure 17 is a cross-sectional view taken along the line A-A in Figure 6. As shown in Figures 6 and 17, the second partition member 62 is positioned between the downstream end Fb of the Peltier element unit 40 and the side end 24b of the second housing portion 24, and the exhaust port 28B and the air outlet 30B are separated by the second partition member 62.

[0122] In other words, in the body ventilation device 20 according to this embodiment, as shown in Figure 16, the intake port 26B is a vent for supplying air AR from the outside to the blower fan 45. For example, as shown in Figure 16, air AR1 and AR6, whose airflow has been altered by contact with the outer peripheral wall 27 of the intake section, are introduced into the internal space 22S from the intake port 26B by the blower fan 45. For example, as shown in Figure 16, air AR2 to AR5, whose airflow has not been altered by not contacting the outer peripheral wall 27 of the intake section, are introduced into the internal space 22S from the intake port 26B by the blower fan 45. Subsequently, the airflow path F of the air AR introduced into the internal space 22S is a flow from the upstream side Fa to the downstream side Fb, and is divided into a flow to the blower side heat sink 42A and a flow to the exhaust side heat sink 42B.

[0123] In the body ventilation device 20 of this embodiment, external air AR is brought into contact with the outer peripheral wall 27 of the intake section, making it easier for it to flow into the internal space 22S of the main body 22, and making it easier to draw in a large amount of air AR into the internal space 22S of the main body 22. As a result, the amount of air flowing between the blowing-side heat sink 42A and the exhaust-side heat sink 42B can be increased, and the temperature control by the body ventilation device 20 can be performed efficiently.

[0124] (1) When air AR flows through the blower-side heat sink 42A, air AR passes through the blower-side heat sink 42A, undergoes heat exchange with the blower-side heat sink 42A, and becomes temperature-controlled air FL.

[0125] In this case, if one surface 41a of the Peltier element 41 is the cooling surface, the air AR supplied from the intake port 26B is cooled through heat exchange with the blower-side heat sink 42A, resulting in cold air CF as shown in Figure 6. Therefore, when one surface 41a is the cooling surface, this cold air CF becomes the temperature-controlled air FL.

[0126] Conversely, if one side 41a of the Peltier element 41 is the heating surface, the air AR supplied from the air intake 26B is heated through heat exchange with the blower-side heat sink 42A, resulting in warm air HF as shown in Figure 6. Therefore, when one side 41a is the heating surface, this warm air HF becomes the temperature-controlled air FL.

[0127] In the body ventilation device 20 according to this embodiment, the control unit 21 reverses the direction of the DC current supplied to the Peltier element 41, thereby switching between cases where the temperature-controlled airflow FL is cold air CF and cases where the temperature-controlled airflow FL is warm air HF.

[0128] (2) When air AR flows through the exhaust heat sink 42B, air AR passes through the exhaust heat sink 42B, undergoes heat exchange with the exhaust heat sink 42B, and becomes exhaust EX, which is discharged to the outside from the exhaust port 28B.

[0129] In the body ventilation device 20 according to this embodiment, the exhaust-side heat sink 42B is covered all around by a fin cover 44. Therefore, the air AR supplied to the exhaust-side heat sink 42B does not flow through the blower-side heat sink 42A, but passes through the gaps between the fins of the exhaust-side heat sink 42B and becomes exhaust EX.

[0130] Furthermore, the blower-side heatsink 42A is also covered all around by a fin cover 44. As a result, the air AR supplied to the blower-side heatsink 42A does not flow through the exhaust-side heatsink 42B, but passes through the gaps between the fins of the blower-side heatsink 42A to become the temperature-controlled air FL. Consequently, the temperature-controlled air FL is generated without any mixing with the exhaust air EX.

[0131] In other words, in the body ventilation device 20 according to this embodiment, as shown in Figures 16 and 19, the exhaust port 28B is an exhaust port for exhausting the exhaust EX that has passed through the gaps between the fins of the exhaust-side heat sink 42B to the outside of the main body 22. For example, as shown in Figure 16, exhaust EX1, whose airflow has been altered by contact with the outer peripheral wall 29 of the exhaust section, will not flow towards the wearer's head HD even when exhausted from the exhaust port 28B, but will be exhausted to the wearer's back. For example, as shown in Figure 16, exhaust EX2, whose airflow has not been altered by not contacting the outer peripheral wall 29 of the exhaust section, will be exhausted to the wearer's back. This prevents the exhaust EX flowing out of the exhaust port 28B of the body ventilation device 20 from flowing towards the wearer's head HD, preventing the exhaust EX from accumulating on the head HD and causing discomfort to the wearer.

[0132] The generated temperature-controlled airflow FL is sent to an airflow region Q provided in the internal space 22S of the main body 22. As shown in Figures 18 and 19, the airflow region Q is the space formed in the Y-axis direction between the air outlet 30B and the second partition member 62, and between the second plate portion 24a of the second housing portion 24 and the second partition member 62. Furthermore, as shown in Figures 18 and 19, the airflow region Q is the space formed in the Z-axis direction between the downstream end Fb of the Peltier element unit 40 and the side end 24b of the second housing portion 24.

[0133] <Regarding the Recirculation System 70> Next, the recirculation system 70 will be explained. Figure 18 is a plan view showing the inside of the main body of the body ventilation device shown in Figure 5, and is a schematic diagram showing the flow of temperature-controlled air. Figure 19 is a cross-sectional view taken along the line C-C in Figure 7, and is a schematic diagram showing the flow of temperature-controlled air and exhaust air inside the main body of the body ventilation device shown in Figure 5. Figure 20 is a cross-sectional view taken along the line D-D in Figure 7, and is a schematic diagram showing the flow of temperature-controlled air recirculating towards the fan of the body ventilation device shown in Figure 5.

[0134] As shown in Figures 5 to 7 and Figures 17 to 20, the body ventilation device 20 according to this embodiment has a recirculation system 70. The recirculation system 70 is configured as a ventilation structure with a recirculation path F1 running parallel to the ventilation path F2. As shown in Figures 16, 18, and 19, the ventilation path F2 is a path that blows the temperature-controlled air FL, which has passed through the ventilation-side heat sink 42A, directly to the outside from the ventilation port 30B.

[0135] The recirculation path F1 is a path that returns the temperature-controlled air FL, which has passed through the blower-side heat sink 42A, to the upstream side Fa of the blower-side heat sink 42A, and supplies the temperature-controlled air FL back to the blower-side heat sink 42A. As shown in Figures 16 and 20, the recirculation path F1 merges with the airflow path F of the air AR introduced from the intake port 26B at the upstream side Fa of the blower-side heat sink 42A.

[0136] Let me explain in detail. As shown in Figures 5 to 8, Figure 17, and Figure 18, the recirculation system 70 consists of a return flow path 70S, a recirculation inlet 71, a recirculation outlet 73, a first return pipe section 75, a connecting section 76, a second return pipe section 78, and a wind direction adjustment wall 79, etc. For example, the recirculation inlet 71 corresponds to the recirculation inlet according to this disclosure. For example, the return flow path 70S corresponds to the return flow path according to this disclosure.

[0137] The wind direction adjustment wall 79 is provided in the air supply area Q. The wind direction adjustment wall 79 corresponds to the wind direction adjustment unit according to this disclosure. As shown in Figures 18 and 19, the wind direction adjustment wall 79 divides the flow of the temperature-controlled air FL into the return inlet 71 side and the air outlet 30B side.

[0138] Here, as shown in Figures 17 and 18, in the airflow region Q, at the branching point 79P of the airflow direction adjustment wall 79 with respect to the Z-axis direction, the cross-sectional area of ​​the recirculation path F1 through which the temperature-controlled airflow FL flows on the side of the recirculation inlet 71 is defined as the first flow path cross-sectional area Sr. The cross-sectional area of ​​the airflow path F2 through which the temperature-controlled airflow FL flows on the side of the air outlet 30B is defined as the second flow path cross-sectional area Se.

[0139] Furthermore, if the sum of the first channel cross-sectional area Sr and the second channel cross-sectional area Se is the total channel cross-sectional area S, then the ratio k (%) of the first channel cross-sectional area Sr to the total channel cross-sectional area S is 0 < k ≤ 50. Preferably, the ratio k (%) is 20 ≤ k ≤ 50, and in this embodiment, the ratio k is approximately 25 (%). If the ratio k exceeds 50 (%), the opening area of ​​the air outlet 30B from which the temperature-controlled air FL is blown out in the air supply region Q becomes too small, and the temperature-controlled air FL cannot be blown out of the air outlet 30B with a sufficient airflow.

[0140] The recirculation inlet 71 and the connecting portion 76 are provided on the side of the main body 22. The recirculation outlet 73 is provided in the internal space 22S of the main body 22. The recirculation inlet 71 has an inlet-side opening 72 formed in the main body 22. The inlet-side opening 72 communicates with the air supply area Q, as shown in Figures 18 and 19. The inlet-side opening 72 communicates with the return flow path 70S. For example, the recirculation outlet 73 corresponds to the recirculation outlet according to this disclosure.

[0141] The return passage 70S is a passage for recirculating the temperature-controlled air FLr from the return inlet 71 to the intake introduction 48 of the blower fan 45 located on the upstream side Fa of the blower-side heat sink 42A. The return passage 70S is formed in the section from the return inlet 71, through the first return pipe section 75, the connection section 76, and the second return pipe section 78, to the return outlet section 73.

[0142] The connecting portion 76 has a connecting portion opening 77 formed in the first housing portion 23 of the main body portion 22. As shown in Figures 18 and 20, the connecting portion opening 77 communicates with the internal space 22S of the main body portion 22. As shown in Figure 18, the connecting portion opening 77 is located on the side of the first housing portion 23, upstream Fa of the blower-side heat sink 42A, at a position where it intersects with a virtual axis J that passes through the rotation center axis O of the blower fan 45 along the X-axis direction.

[0143] The return inlet 71 and the connecting portion 76 are connected by a tubular first return pipe portion 75. As shown in Figures 5, 6, 18, and 19, the first return pipe portion 75 is arranged along the outer side of the main body portion 22. The connecting portion 76 is connected to a tubular second return pipe portion 78, which is arranged in the internal space 22S of the main body portion 22.

[0144] The second return pipe section 78 is connected to the connection section 76, communicating with the connection section opening 77 on one side in the X-axis direction (left side in Figure 20). The return outlet section 73 is formed by deeply notching the end of the second return pipe section 78, which is on the other side in the X-axis direction (right side in Figure 20), from the inner circumference to the outer circumference of the blade 46 with respect to the radial direction of the rotation center axis O of the blower fan 45. The return outlet section 73 has an outlet side opening 74 formed at the end of this second return pipe section 78.

[0145] As shown in Figures 6, 16, and 20, the recirculation outlet 73 is positioned in the internal space 22S of the main body 22, close to the intake inlet 48 of the blower fan 45, which is located upstream Fa of the blower-side heat sink 42A. In other words, the recirculation outlet 73 is an outlet that returns the temperature-controlled air FLr that has been recirculated in the return flow path 70S back to the upstream Fa of the blower-side heat sink 42A, and is positioned so that it can be drawn in by the blower fan 45. Therefore, the recirculated temperature-controlled air FLr can easily flow from the outlet side opening 74 of the recirculation outlet 73 to the intake inlet 48 of the blower fan 45.

[0146] As the blades 46 of the blower fan 45 rotate, the temperature-controlled air FLr that flows into the recirculation path F1 and recirculates is drawn towards the recirculation outlet 73 through the return flow path 70S and blown from the outlet side opening 74 to the intake inlet 48 of the blower fan 45. As a result, at the intake inlet 48 of the blower fan 45, the recirculated temperature-controlled air FLr merges with the air AR newly introduced from the intake port 26B and is supplied again to the blower side heat sink 42A.

[0147] <Verification Experiment> Next, in order to confirm the significance of the body ventilation device 20 according to this embodiment, an experiment was conducted to verify the effect of the recirculation system 70. The experiment used the body ventilation device according to the embodiment and the body ventilation devices according to Comparative Examples 1 to 3.

[0148] The experiment involves measuring the temperature of the air blown out from the air outlet of each of the body ventilation devices according to the example and comparative examples 1 to 3 over time using a thermometer, thereby confirming the temperature change behavior that causes the blown air to become cool for each body ventilation device.

[0149] The body ventilation device according to the example is the body ventilation device 20 according to this embodiment. The body ventilation device according to Comparative Example 1 is product A. The body ventilation device according to Comparative Example 2 is product B. The body ventilation device according to Comparative Example 3 is product C.

[0150] (1) Experimental Method In the experiment, the body ventilation devices according to the Example and Comparative Examples 1 to 3 were used simultaneously in a laboratory under the same ambient temperature. Furthermore, the experiment was conducted with the four body ventilation devices according to the Example and Comparative Examples 1 to 3 positioned sufficiently far apart from each other to prevent the temperature of the blown cold air from affecting each other.

[0151] In the experiment, in both the example and comparative examples 1-3, the body ventilation device continuously supplied cool air from its vents for 30 minutes at the ambient temperature of the laboratory. The temperature of the cool air was measured every minute using a thermometer.

[0152] (2) Experimental conditions <Common conditions for the example and comparative examples 1 to 3> - Temperature characteristics of the Peltier element: Temperature characteristics with a temperature range of approximately 10 to 15°C compared to the ambient temperature. - Heat sink on the heat absorption side in contact with the heat absorption surface of the Peltier element: Air blower side heat sink 42A (example) and a heat sink with performance similar to that of the air blower side heat sink 42A (comparative examples 1 to 3). - Heat sink on the heat generating side in contact with the heat generating surface of the Peltier element: Exhaust side heat sink 42B (example) and a heat sink with performance similar to that of the exhaust side heat sink 42B (comparative examples 1 to 3). - Air blower fan: Sirocco fan with the same airflow. - Intake port: Opening formed in the same way as the intake port 26B. - Exhaust port: Opening formed in the same way as the exhaust port 28B.

[0153] <Conditions of the Example> - Presence or absence of recirculation system 70: Yes - Air blowing structure of body blower: Recirculation path F1 and air blowing path F2 are arranged side by side <Common conditions of Comparative Examples 1 to 3> - Presence or absence of recirculation system: No - Air blowing structure of body blower: Only an air blowing path corresponding to air blowing path F2

[0154] (3) Experimental Results Figure 21 is a table summarizing the relationship between ambient temperature and cold air temperature measured at each time interval in a verification experiment in which cold air was continuously blown for 30 minutes using the body-use air blowers according to the Examples and Comparative Examples 1 to 3.

[0155] Figure 22 is a table summarizing the temperature difference per unit time between the measured value of the cold air temperature at a earlier time and the measured value at a later time in verification experiments using the body-use air blower according to the Examples and Comparative Examples 1 to 3.

[0156] The temperature of the cool air was measured every minute using a thermometer. Figures 21 and 22 show the results of the cool air temperature measurements taken from 5 minutes after the start of airflow, recorded every 5 minutes.

[0157] The results of the verification experiment are shown in Figures 21 and 22. As shown in Figure 21, the ambient temperature T in the laboratory was 35°C at the start of the experiment, but rose to 36.4°C at the end of the experiment, an increase of 1.4°C during the 30 minutes the verification experiment was conducted.

[0158] In the case of the body-use air blower according to the embodiment, as shown in Figure 21, the temperature Ta of the cold air was 33.7°C after 1 minute, 31°C after 2 minutes, 28.8°C after 3 minutes, and 24.8°C at the end of the experiment. Also, as shown in Figure 21, the temperature difference (Ta-T) between the temperature Ta of the cold air and the ambient temperature T was -1.6°C after 1 minute, -4.2°C after 2 minutes, -6.6°C after 3 minutes, and -12.1°C at the end of the experiment.

[0159] In contrast, in the case of the body-use air blower according to Comparative Example 1, as shown in Figure 21, the temperature Tb of the cold air was 34°C after 1 minute, 32.6°C after 2 minutes, 31.8°C after 3 minutes, and 25.7°C at the end of the experiment. Also, as shown in Figure 21, the temperature difference (Tb-T) between the temperature Tb of the cold air and the ambient temperature T was -1.3°C after 1 minute, -2.6°C after 2 minutes, -3.6°C after 3 minutes, and -10.7°C at the end of the experiment.

[0160] In the case of the body-use air blower according to Comparative Example 2, as shown in Figure 21, the temperature Tc of the cold air was 34.3°C after 1 minute, 33.5°C after 2 minutes, 32°C after 3 minutes, and 27.8°C at the end of the experiment. Also, as shown in Figure 21, the temperature difference (Tc-T) between the temperature Tc of the cold air and the ambient temperature T was -1°C after 1 minute, -1.7°C after 2 minutes, -3.4°C after 3 minutes, and -8.6°C at the end of the experiment.

[0161] In the case of the body-use air blower according to Comparative Example 3, as shown in Figure 21, the temperature Td of the cold air was 34.1°C after 1 minute, 33.4°C after 2 minutes, 33.2°C after 3 minutes, and 27.4°C at the end of the experiment. Also, as shown in Figure 21, the temperature difference (Td-T) between the temperature Td of the cold air and the ambient temperature T was -1.2°C after 1 minute, -1.8°C after 2 minutes, -2.2°C after 3 minutes, and -9°C at the end of the experiment.

[0162] <Discussion> We will discuss the results of the verification experiment. From the results of the verification experiment, it can be seen that, as the first event, in the body ventilation device according to the example, at the end of the experiment, the temperature Ta of the blown cold air had a temperature difference of 1.7 to 3.5°C compared to the temperatures Tb, Tc, and Td of the cold air from the body ventilation devices according to Comparative Examples 1 to 3, and was the lowest.

[0163] Furthermore, as shown in Figure 22, the applicant confirmed the change in temperature per unit time between the measured value of the cool air blown by the body ventilation devices according to the Examples and Comparative Examples 1 to 3, measured at a earlier time and measured at a later time. From the results of the verification experiment, there was no particularly large difference in this temperature per unit time for the Examples and Comparative Examples 1 to 3 during the 25 minutes from 5 minutes after the start of the experiment to the end of the experiment.

[0164] However, as shown in Figure 22, from the start of the experiment, especially during the first three minutes, the temperature difference per hour (Tb2-Tb1) in the case of the body ventilation device according to Comparative Example 1 remains at around 1°C. In the case of the body ventilation device according to Comparative Example 2, the temperature difference per hour (Tc2-Tc1) also remains at around 1°C. In the case of the body ventilation device according to Comparative Example 3, the temperature difference per hour (Td2-Td1) is only about 0.5°C.

[0165] In contrast, in the case of the body ventilation device according to the embodiment, the second phenomenon is that the temperature difference per unit time (Ta2 - Ta1) is nearly 2 to 3°C. As a result, it can be seen that, compared to the body ventilation devices according to Comparative Examples 1 to 3, the body ventilation device according to the embodiment has the greatest cooling rate, especially for the cold air blown out immediately after the start of ventilation.

[0166] On the other hand, in the case of the body ventilation device according to Comparative Example 1, the time required from the start of blowing cold air until the temperature difference (Tb-T) between the ambient temperature T and the cold air temperature Tb reached approximately -9°C was 15 to 20 minutes.

[0167] Furthermore, in the case of the body ventilation device according to Comparative Example 2, the time required from the start of blowing cold air until the temperature difference (Tc-T) between the ambient temperature T and the cold air temperature Tc reached approximately -9°C was 30 minutes, which was the time the experiment was completed.

[0168] Similarly, in the case of the body ventilation device according to Comparative Example 3, the time required from the start of blowing cold air until the temperature difference (Td-T) between the ambient temperature T and the cold air temperature Td reached approximately -9°C in one example was 30 minutes, which was the time the experiment was completed.

[0169] In contrast, in the case of the body ventilation device according to the embodiment, the time required from the start of blowing cold air until the temperature difference (Ta-T) between the ambient temperature T and the cold air temperature Ta reached approximately -9°C, as described above, was only about 5 minutes.

[0170] In the example, the required time was 1 / 4 to 1 / 3 of that in Comparative Example 1, and 1 / 6 of that time compared to Comparative Examples 2 and 3. From this, it can be seen that, as a third phenomenon, the cooling rate of the cold air blown out immediately after the start of airflow in the body ventilation device according to the example is 3 to 6 times greater than that of the body ventilation devices according to Comparative Examples 1 to 3.

[0171] In the body ventilation device according to the embodiment, the reason why the first, second, and third events described above were observed is presumed to be because the body ventilation device according to the embodiment is a body ventilation device 20 that constitutes the recirculation system 70.

[0172] In other words, in the body ventilation device 20, as shown in Figure 16, the air AR introduced from the intake port 26B by the blower fan 45 flows through the air circulation path F in the internal space 22S of the main body 22 at a higher flow velocity. After the air AR passes through the blower-side heat sink 42A, the temperature-controlled air FL is blown out from the air outlet 30B at a larger volume. In the body ventilation device 20 attached to the temperature-controlled vest 1, the temperature-controlled air FL directed towards the wearer HM is blown out towards the body at a large volume. As a result, the comfort of the wearer HM is improved, especially for people who seek cool air, such as outdoors in extreme heat, or for people who feel cold when exposed to cold wind outdoors and seek warm air.

[0173] However, if the airflow velocity of the air AR introduced from the intake port 26B becomes too high, the air AR flowing through the airflow path F cannot adequately exchange heat with the blower-side heat sink 42A. As a result, if this insufficient heat exchange continues, an incomplete heat exchange event may occur, where the air is blown out from the blower port 30B.

[0174] Therefore, one way to avoid such incomplete heat exchange events is to enlarge the Peltier element unit to increase the time the introduced air passes through the heat sink on the blower side, thereby ensuring sufficient heat exchange with the heat sink. Another option is to reduce the airflow rate of the temperature-controlled air blown out from the air outlet. However, a blower with a larger Peltier element unit or reduced airflow rate would result in higher costs due to the increased size of the device, and would also be less user-friendly.

[0175] In contrast, the body ventilation device 20 is equipped with a recirculation system 70, which allows for the suppression of incomplete heat exchange events without increasing the size of the Peltier element unit or reducing the airflow volume of the temperature-controlled air.

[0176] In other words, the air AR introduced into the internal space 22S of the main body 22 from the intake port 26B may flow through the air circulation path F at a higher flow velocity, and there may be cases where sufficient heat exchange cannot be performed at the blower-side heat sink 42A. However, the body ventilation device 20 has a recirculation system 70. Therefore, even in such cases, as shown in Figure 18, when the temperature-controlled air FL that has not undergone sufficient heat exchange reaches the blower area Q, it is returned to the blower-side heat sink 42A again through the recirculation path F1, becoming recirculated temperature-controlled air FLr.

[0177] The recirculated, temperature-controlled air FLr can exchange heat again with the blower-side heat sink 42A, making it easier to adjust to a temperature closer to the desired temperature. Therefore, it is thought that the body ventilation device 20, which constitutes the recirculation system 70, can adjust the temperature-controlled air FL blown out from the air outlet 30B to a temperature closer to the desired temperature in a shorter time, especially when there is a large temperature difference with the ambient temperature T immediately after the start of ventilation.

[0178] <Airflow inside Temperature-Controlled Vest 1> Next, we will explain the airflow inside Temperature-Controlled Vest 1 using Figure 23. Figure 23 is an explanatory diagram for illustrating the airflow sent out by the body ventilation device attached to the temperature-controlled vest shown in Figure 1.

[0179] As shown in Figure 23, a portion of the air AR introduced into the internal space 22S of the main body 22 from the intake port 26B flows through the air circulation path F in the internal space 22S of the main body 22 by the blower fan 45. After a portion of the air AR passes through the blower-side heat sink 42A, the temperature-controlled air FL and FLr are blown out from the air port 30B at a larger volume. In the body-type air blower 20 attached to the temperature-controlled vest 1, the temperature-controlled air FL and FLr directed towards the wearer HM is blown out at a large volume towards the wearer HM's back and neck. When the temperature-controlled air FL and FLr blown onto the wearer HM's back flows from the collar 6 to the nape of the wearer HM's neck NP, the wearer HM's comfort is improved, especially for people who seek cool air, such as outdoors in extreme heat, or for people who feel cold when exposed to cold wind outdoors and seek warm air. Furthermore, the temperature-regulated airflow FL and FLr that flows towards the neck NP of the wearer's head may also flow from the neck NP towards the head HD of the wearer's head. As a result, the temperature-regulated airflow FL and FLr that flows towards the head HD improves the comfort of the wearer's head, especially for people who seek cool air, such as outdoors in extreme heat, or for people who feel cold when exposed to cold winds outdoors and seek warm air.

[0180] On the other hand, as shown in Figure 23, when a portion of the air AR introduced into the internal space 22S of the main body 22 from the intake port 26B passes through the exhaust-side heat sink 42B by the blower fan 45, it undergoes heat exchange with the exhaust-side heat sink 42B and becomes exhaust EX. This exhaust EX is discharged to the outside from the exhaust port 28B. This prevents the exhaust EX from flowing towards the wearer's HM of the temperature-controlled vest 1 and accumulating on the wearer's head HD.

[0181] Next, the clothing attachment structure of the body ventilation device 20 according to this embodiment, and the operation and effects of the temperature-controlled vest 1 with the body ventilation device 20 will be described.

[0182] The garment attachment structure of the body ventilation device 20 in this embodiment includes a main body portion 22 having an air outlet 30B, a Peltier element 41 arranged in the internal space 22S of the main body portion 22, a heat sink unit 42 having a blower-side heat sink 42A, and a blower fan 45 that sends air to the blower-side heat sink 42A formed on one surface 41a of the Peltier element 41. The body ventilation device 20 sends temperature-controlled air, which is either cold air or warm air that has passed from the upstream side to the downstream side of the blower-side heat sink 42A, into the vest body 2 from the air outlet 30B. An insertion hole 11 is formed in the inner garment fabric 3B of the temperature-controlled vest 1 for detachably attaching the body ventilation device 20, and the main body portion 22 is formed on the opposite side of one surface 41a of the Peltier element 41. The body ventilation device 20 has a surface 25 on which an intake section 26 and an exhaust section 28 are formed on opposite sides, and is equipped with a plurality of ring fasteners 50 that can be attached from the surface 25 side, each of which has a projection 54 that can be connected to the intake section 26 and exhaust section 28, and a clamping surface 52 for sandwiching the surface 25 and the back fabric 3B, and the intake section 26 and exhaust section 28 each have a fixed rail 31 that can be connected to the projection 54, and the body ventilation device 20 is attached to the back fabric 3B by sandwiching the back fabric 3B between the surface 25 and the clamping surface 52, connecting the projection 54 of the first ring fastener 50A to the fixed rail 31 of the intake section 26, and connecting the projection 54 of the second ring fastener 50B to the fixed rail 31 of the exhaust section 28.

[0183] According to the garment attachment structure of the body ventilation device 20 of this embodiment, the body ventilation device 20 is attached to the inner garment fabric 3B by sandwiching the inner garment fabric 3B between the surface 25 and the clamping surface 52, and connecting the projection 54 of the first ring fastener 50A to the fixed rail 31 of the intake section 26. Furthermore, the projection 54 of the second ring fastener 50B is connected to the fixed rail 31 of the exhaust section 28. This allows, for example, a person to easily attach the body ventilation device 20 to the inner garment fabric 3B of the temperature-regulating vest 1. Moreover, even if the temperature-regulating vest 1 is pulled during work, for example, the body ventilation device 20 is difficult to detach from the temperature-regulating vest 1 because it is attached while the inner garment fabric 3B of the temperature-regulating vest 1 is sandwiched between the surface 25 and the clamping surface 52. Therefore, for example, even if an unforeseen situation occurs during work, the temperature-controlled air FL can be sent into the vest body 2 from the air outlet 30B of the body ventilation device 20 attached to the inner fabric 3B of the temperature-controlled vest 1, thereby regulating the temperature of the wearer HM. Thus, it is possible to easily attach the body ventilation device 20 to the inner fabric 3B of the temperature-controlled vest 1 and to prevent the body ventilation device 20 from detaching from the inner fabric 3B of the temperature-controlled vest 1 in the event of an unforeseen situation.

[0184] In this embodiment, the clothing attachment structure of the body ventilation device 20 is such that the intake section 26 is an intake section with an intake port 26B formed in the internal space 22S of the main body section 22 for drawing in air, and the exhaust section 28 is an exhaust section with an exhaust port 28B formed outside the main body section 22 for exhausting air.

[0185] According to the garment attachment structure of the body ventilation device 20 of this embodiment, air is drawn in from the intake section 26 of the body ventilation device 20 attached to the inner garment fabric 3B into the internal space 22S of the main body 22, and the air is exhausted to the outside of the main body 22 from the exhaust section 28 of the body ventilation device 20. In this way, while the intake section 26 and exhaust section 28 perform their respective roles, it is possible to prevent the body ventilation device 20 from detaching from the inner garment fabric 3B of the temperature-regulating vest 1, for example, even if an unforeseen situation occurs during work.

[0186] In this embodiment, the clothing attachment structure of the body ventilation device 20 preferably includes the following: the intake section 26 has an intake section outer peripheral wall 27 formed perpendicularly from the surface 25 with respect to a center line AX1 passing through the center of the intake section surface 26A on the inside of the peripheral wall forming the intake section 26; the exhaust section 28 has an exhaust section outer peripheral wall 29 formed perpendicularly from the surface 25 with respect to a center line AX2 passing through the center of the exhaust section surface 28A on the inside of the peripheral wall forming the exhaust section 28; fixed rails 31 are formed on the outer peripheral surface 27A of the intake section outer peripheral wall 27 and the outer peripheral surface 29A of the exhaust section outer peripheral wall 29, respectively; and protrusions 54 are formed on the inner peripheral surfaces 53 of each of the multiple ring fasteners 50.

[0187] According to the garment attachment structure of the body ventilation device 20 of this embodiment, the inner garment fabric 3B is sandwiched between the surface 25 and the clamping surface 52, and the fixing rail 31 on the outer surface 27A of the intake outer peripheral wall 27 is connected to the projection 54 on the inner surface 53 of the first ring fastener 50A. Furthermore, the fixing rail 31 on the outer surface 29A of the exhaust outer peripheral wall 29 is connected to the projection 54 on the inner surface 53 of the second ring fastener 50B. As a result, the body ventilation device 20 can be attached to the temperature-controlled vest 1 by the intake outer peripheral wall 27, and a portion of the outside air AR is brought into contact with the outer peripheral surface 27A, changing the airflow and making it easier to introduce the air into the internal space 22S from the intake port 26B. Furthermore, the outer peripheral wall 29 of the exhaust section not only allows the body-use air blower 20 to be attached to the temperature-controlled vest 1, but also allows a portion of the exhaust EX from the internal space 22S to come into contact with the outer peripheral surface 29A, thereby changing the airflow and preventing it from flowing onto the wearer's head (HD). This increases the amount of air flowing out of the main body 22, improving the efficiency of temperature control by the post-temperature-controlled airflow FL, and prevents the exhaust EX from accumulating on the head (HD), thus preventing discomfort to the wearer (HM).

[0188] In this embodiment, the clothing attachment structure of the body ventilation device 20 is such that the internal space 22S of the main body 22 has a ventilation area Q for temperature-controlled air FL, which is provided between the downstream side Fb of the heat sink unit 42 and the air outlet 30B. The ventilation area Q has a return inlet 71 which is in communication with a return channel 70S that can return the temperature-controlled air FL to the upstream side Fa of the ventilation-side heat sink 42A.

[0189] According to the garment attachment structure of the body ventilation device 20 of this embodiment, the temperature-controlled air FL can be returned from the return inlet 71 through the return channel 70S to the upstream Fa of the blower-side heat sink 42A and supplied back to the blower-side heat sink 42A. As a result, the temperature-controlled air FL, including the returned temperature-controlled air FLr, is blown out from the air outlet 30B. In other words, there are cases where the temperature-controlled air FL, after passing through the blower-side heat sink 42A, cannot adequately exchange heat with the air AR flowing through the air circulation path F and the blower-side heat sink 42A. Even in such cases, the temperature-controlled air FL in this state can pass through the blower-side heat sink 42A again, allowing it to exchange heat with the blower-side heat sink 42A and thus adjust to a temperature closer to the desired temperature. In particular, it is conceivable that the body ventilation device 20 may be used in environments where the ambient temperature surrounding the body ventilation device 20 and the temperature of the temperature-controlled air FL to be blown out differ significantly, for example, by more than 10 degrees Celsius. In this case, the temperature-controlled air FL blown out from the air outlet 30B by the recirculation system 70 can be temperature-controlled and blown out with good response from the start of blowing, at a temperature change rate 3 to 5 times faster than, for example, conventional body ventilation devices that do not have a return flow path, until it reaches the desired temperature. Furthermore, when a user is working in the scorching sun on, for example, an extremely hot day with an outside temperature exceeding 35 degrees Celsius, the user tends to strongly desire to be able to cool their body immediately with cool air at a comfortable temperature. Even in such cases, the body ventilation device 20 can quickly blow cool air CF (temperature-controlled air FL), which has been cooled to the desired temperature with good response, onto the body, and quickly cool the body of the user who is feeling uncomfortable due to the heat and sweat. Therefore, when blowing the temperature-controlled air FL, which is generated through heat exchange between the air AR introduced from the intake port 26B and the blower-side heat sink 42A, the temperature-controlled air FL can be adjusted to a comfortable temperature for the wearer HM in a shorter time from the start of blowing.

[0190] In this embodiment, the clothing attachment structure of the body ventilation device 20 is such that a recirculation outlet 73 is formed in the internal space 22S of the main body 22, connected to a second return pipe section 78 that communicates with a return passage 70S, on the upstream side Fa of the ventilation-side heat sink 42A, and at the recirculation outlet 73, the intake air AR (wind) and the recirculated temperature-controlled wind FLr merge.

[0191] According to the garment attachment structure of the body ventilation device 20 of this embodiment, the temperature-controlled air FLr is recirculated to the upstream Fa of the ventilation-side heat sink 42A on the airflow path F. Subsequently, the recirculated temperature-controlled air FLr can be sent back to the ventilation-side heat sink 42A by the airflow from the newly introduced air AR at the intake port 26B. Therefore, a means for sending the recirculated temperature-controlled air FLr towards the ventilation-side heat sink 42A is unnecessary, and the recirculated temperature-controlled air FLr can pass through the ventilation-side heat sink 42A with the flow of the newly introduced air AR. As a result, the temperature inside the vest body 2 of the wearer HM, even in an environment with a large temperature difference of more than 10 degrees Celsius, can be adjusted more quickly.

[0192] In this embodiment, the clothing attachment structure of the body ventilation device 20 is provided in the ventilation area Q with a wind direction adjustment wall 79 that divides the flow of temperature-controlled air FL into a return inlet 71 side and an air outlet 30B side.

[0193] According to the garment attachment structure of the body ventilation device 20 of this embodiment, the temperature-controlled air FL that reaches the airflow area Q is reliably separated into a recirculation path F1 leading to the recirculation inlet 71 and an airflow path F2 leading to the air outlet 30B. Therefore, the temperature-controlled air FL that flows into the recirculation path F1 becomes recirculating temperature-controlled air FLr through the return path 70S and is returned to the upstream side Fa of the ventilation-side heat sink 42A. The temperature-controlled air FL that flows into the airflow path F2 is blown out to the outside from the air outlet 30B. In this way, the flow of the temperature-controlled air FL and FLr can be appropriately adjusted by the airflow direction adjustment wall 79, so that the temperature inside the vest body 2 of the wearer HM in an environment with a large temperature difference of more than 10 degrees Celsius can be appropriately adjusted.

[0194] In this embodiment, the garment attachment structure of the body ventilation device 20 is such that, at the branching point 79P of the airflow direction adjustment wall 79, the flow path cross-sectional area of ​​the temperature-controlled air FL flowing on the side of the return inlet 71 is the first flow path cross-sectional area Sr, the flow path cross-sectional area of ​​the temperature-controlled air FL flowing on the side of the air outlet 30B is the second flow path cross-sectional area Se, and the sum of the first flow path cross-sectional area Sr and the second flow path cross-sectional area Se is the total flow path cross-sectional area S. Then, the ratio k (%) of the first flow path cross-sectional area Sr to the total flow path cross-sectional area S is 0 < k ≤ 50.

[0195] According to the garment attachment structure of the body ventilation device 20 of this embodiment, the body ventilation device 20 can ensure that the airflow rate of the temperature-controlled air FL blown out from the air outlet 30B is not significantly reduced, and does not adversely affect the user. In addition, the body ventilation device 20 can adjust the temperature of the blown-out temperature-controlled air FL to a temperature close to the desired temperature in a shorter time from the start of airflow. Therefore, in the body ventilation device 20, the flow rate and temperature are well balanced, and the temperature-controlled air FL can be blown out from the air outlet 30B. On the other hand, in the body ventilation device 20, as the value of the ratio k (%) increases, the airflow rate of the temperature-controlled air FL blown out from the air outlet 30B decreases. Conversely, as the value of the ratio k (%) increases, the temperature-controlled air FL blown out from the air outlet 30B is mainly blown out as temperature-controlled air FLr that has been recirculated via the recirculation path F1. Therefore, the temperature-controlled airflow FL is not blown out from the air outlet 30B, ensuring a large airflow volume. However, in the case of temperature-controlled airflow FL blown out from the air outlet 30B, the rate of temperature change toward the desired temperature tends to increase as the value of the ratio k (%) increases after the start of airflow. Consequently, the larger the value of the ratio k (%) becomes, not limited to the range of 0 < k ≤ 50, the shorter the time required for the temperature-controlled airflow FL blown out from the air outlet 30B to reach the desired temperature. As a result, the temperature-controlled airflow FL, in which the flow rate and temperature are well-balanced, can appropriately regulate the temperature inside the vest body 2 of the wearer HM in an environment with a large temperature difference, for example, of more than 10 degrees Celsius.

[0196] In this embodiment, the clothing attachment structure of the body ventilation device 20 is such that the main body 22 has an exhaust port 28B, the heat sink unit 42 has an exhaust-side heat sink 42B formed on the other side 41b opposite to one side 41a of the Peltier element 41, and the blower fan 45, together with the blower-side heat sink 42A, sends air AR as wind to the exhaust-side heat sink 42B.

[0197] According to the clothing attachment structure of the body ventilation device 20 of this embodiment, the Peltier element 41 can suppress the decrease in cooling efficiency and heating efficiency over time on one surface 41a and the other surface 41b. As a result, the temperature-controlled air FL can be continuously blown out at a stable temperature. That is, the Peltier element 41 has the characteristic that, on both heat transfer surfaces, one surface 41a and the other surface 41b, heat transfer occurs between the heat absorption side and the heat generation side, resulting in low-temperature heat on the heat absorption side and high-temperature heat on the heat generation side. In this Peltier element 41, if the heat generated on the heat generation side is not efficiently dissipated to the outside, heat absorption will gradually become less likely to occur on the heat absorption side. If the Peltier element 41 is in such a state, not only will the cooling efficiency on the heat transfer surface of the Peltier element decrease over time, but there is also a risk of damage or burnout of the Peltier element, which is undesirable. In contrast, in the body ventilation device 20 according to this embodiment, the blower fan 45, together with the blower-side heat sink 42A, sends air AR as wind to the exhaust-side heat sink 42B. In particular, when one surface 41a is under heat absorption, the high-temperature waste heat generated on the other surface 41b is exchanged with the air AR sent from the blower fan 45 at the exhaust-side heat sink 42B, becoming warm air HF, which is then exhausted to the outside through the exhaust port 28B. Therefore, the Peltier element 41 can continuously maintain its Peltier effect without causing adverse effects on heat transfer between the heat absorption side and the heat generation side on both heat transfer surfaces, one surface 41a and the other surface 41b, due to insufficient heat dissipation on the other surface 41b. Consequently, damage to the Peltier element 41 caused by the inability to continuously dissipate the waste heat generated on the other surface 41b of the Peltier element 41 can be suppressed. This allows for stable temperature control within the vest body 2 of the wearer HM, even when they are in an environment with a large temperature difference of more than 10°C, by using the temperature-controlled airflow FL.

[0198] In this embodiment, the temperature-controlled vest 1 has a body-type air blower 20 that forms a garment attachment structure for the body-type air blower 20, which can be attached to and detached from the vest body 2.

[0199] According to the temperature-controlled vest 1 of this embodiment, the body-type ventilation device 20 can be easily attached to the temperature-controlled vest 1, which employs the garment attachment structure of the body-type ventilation device 20 of this embodiment, and it is possible to prevent the body-type ventilation device 20 from detaching from the vest body 2 in unforeseen circumstances.

[0200] Although the present disclosure has been described above in reference to embodiments, the present disclosure is not limited to the above embodiments and can be modified and applied as appropriate without departing from its essence. Of course, the above embodiments and the configurations of the following modified examples can be combined as appropriate. The technical features of the above embodiments and the following modified examples can be deleted as appropriate unless they are described as essential in this specification.

[0201] In the above embodiment, the number of ring fasteners 50 that can be attached to the main body 22 of the body ventilation device 20 was two, but it is not limited to this. For example, the number of ring fasteners 50 that can be attached to the main body 22 of the body ventilation device 20 may be three or more. If there are three or more places on the main body 22 where the ring fasteners 50 can be attached, the body ventilation device 20 attached to the temperature-controlled vest 1 will be less likely to come off. However, it is preferable that the number of ring fasteners 50 be the same as the number of places on the main body 22 of the body ventilation device 20 where the ring fasteners 50 can be attached. This is because if the number of ring fasteners 50 is greater than the number of places where the ring fasteners 50 can be attached, they will get in the way.

[0202] In the main body 22 of the above embodiment, there were two openings to which the ring fastener 50 can be attached: the intake section 26 and the exhaust section 28. However, it is not limited to this. There may be three or more openings in the main body 22 to which the ring fastener 50 can be attached. If there are two or more openings in the main body 22 to which the ring fastener 50 can be attached, the body ventilation device 20 attached to the temperature-controlled vest 1 will be less likely to come off. However, it is preferable that the number of openings to which the ring fastener 50 can be attached and the number of ring fasteners 50 in the main body 22 of the body ventilation device 20 are the same. This is because if the number of openings is greater than the number of ring fasteners 50, they will get in the way.

[0203] In the above embodiment, the body ventilation device 20 was attached to the temperature-controlled vest 1 by attaching ring fasteners 50 to each of the intake section 26 and exhaust section 28. However, it is not limited to this. For example, the body ventilation device 20 could be attached to the temperature-controlled vest 1 by providing two intake sections 26 on the first plate section 23a and attaching ring fasteners 50 to each of the two intake sections 26. In this case, the two intake sections 26 can draw in a larger volume of air into the internal space 22S of the main body section 22. Alternatively, for example, the body ventilation device 20 could be attached to the temperature-controlled vest 1 by providing two exhaust sections 28 on the first plate section 23a and attaching ring fasteners 50 to each of the two exhaust sections 28. In this case, the two exhaust sections 28 can exhaust a larger volume of exhaust air to the outside of the main body section 22.

[0204] In the above embodiment, the body ventilation device 20 is attached to the temperature-controlled vest 1 by engaging each of the multiple protrusions 54 of the first ring fastener 50A with each of the restricting portions 32 on the outer surface 27A of the outer wall 27 of the intake section. However, it is not limited to this. For example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by screwing the male thread of the first ring fastener 50A into the female thread of the outer surface 27A of the outer wall 27 of the intake section. Alternatively, for example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by fitting the convex portion of the first ring fastener 50A into the recess of the outer surface 27A of the outer wall 27 of the intake section.

[0205] In the above embodiment, the body ventilation device 20 is attached to the temperature-controlled vest 1 by engaging each of the multiple protrusions 54 of the second ring fastener 50B with each of the restricting portions 32 on the outer surface 29A of the exhaust outer wall 29. However, it is not limited to this. For example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by screwing the male thread of the second ring fastener 50B into the female thread of the outer surface 29A of the exhaust outer wall 29. Alternatively, for example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by screwing the female thread of the second ring fastener 50B into the male thread of the outer surface 29A of the exhaust outer wall 29. For example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by fitting the convex portion of the second ring fastener 50B into the recess of the outer surface 29A of the exhaust outer wall 29. Alternatively, for example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by fitting the recess of the second ring fastener 50B into the protrusion of the outer surface 29A of the outer wall 29 of the exhaust section.

[0206] In the above embodiment, the body ventilation device 20 is attached to the temperature-controlled vest 1 by engaging each of the multiple projections 54 of the first ring fastener 50A with each of the restricting portions 32 on the outer surface 27A of the outer wall 27 of the intake section. However, it is not limited to this. For example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by engaging each of the multiple projections on the outer surface of the first ring fastener 50A with each of the restricting portions 32 on the inner surface of the outer wall 27 of the intake section. This makes it more difficult for the first ring fastener 50A to be contacted from the outside, and thus makes it more difficult to remove the body ventilation device 20 from the vest body 2.

[0207] In the above embodiment, the body ventilation device 20 is attached to the temperature-controlled vest 1 by engaging each of the multiple protrusions 54 of the second ring fastener 50B with each of the restricting portions 32 on the outer surface 29A of the exhaust outer wall 29. However, it is not limited to this. For example, the body ventilation device 20 may be attached to the temperature-controlled vest 1 by engaging each of the multiple protrusions on the outer surface of the second ring fastener 50B with each of the restricting portions 32 on the inner surface of the exhaust outer wall 29. This makes it more difficult for the second ring fastener 50B to be contacted from the outside, and thus makes it more difficult to remove the body ventilation device 20 from the vest body 2.

[0208] In the above embodiment, an example was described in which the body ventilation device 20 is attached to the vest body 2 so that the air outlet 30B faces the collar area 6. However, it is not limited to this. For example, the body ventilation device 20 may be attached to the vest body 2 so that the air outlet 30B faces the opposite side of the collar area 6, i.e., the waist of the wearer HM. This allows the temperature of the upper body of the wearer HM to be adjusted by the temperature-controlled air FL sent out from the air outlet 30B.

[0209] In the above embodiment, the number of body ventilation devices 20 attached to the vest body 2 may be two or more, and is not limited to this embodiment, but can be modified in various ways.

[0210] In the above embodiment, a vest body 2 was given in which attachment parts 10 are provided at two locations on the back side of the garment fabric 3B. However, it is not limited to this. The number, position, and arrangement of attachment parts 10 provided on the garment fabric 3 can be appropriately changed according to the intended use of the garment (product) with a body ventilation device according to this disclosure, the wearer's physique, and other product specifications.

[0211] For example, in this embodiment, the blower fan 45 is a sirocco fan that can draw air AR toward the blades 46 by the rotation of the blades 46. However, the blower fan may be other than a sirocco fan, such as an axial flow fan like a propeller fan or a turbo fan. However, since an axial flow fan does not have the ability to draw air toward the blades by the rotation of the blades, it is necessary to configure a suction means in the return flow path of the body blower according to this disclosure to draw the temperature-controlled air to be recirculated from the recirculation inlet to the upstream side of the first fin.

[0212] In this embodiment, as shown in Figure 8, a blower section 30 is formed from the second plate section 24a of the second housing section 24 to the side end 24b of the second housing section 24, and an air outlet 30B is formed in the blower section 30. However, it is not limited to this. For example, the air outlet may be located only on the side of the second plate section 24a of the second housing section 24. For example, the air outlet may be located only on the side end 24b of the second housing section 24, or it may be located at the side end of the main body section in a position parallel to the cross-sectional flow path of the air passing through the first fin.

[0213] In this embodiment, as shown in Figure 10, a blower-side heat sink 42A and an exhaust-side heat sink 42B are provided, which are vertically erected from flat plate portions 42Aa and 42Ba, with numerous fins formed by folding in a substantially wave-like shape, with gaps between adjacent fins. However, the configuration of the first fin and the second fin is not limited to this embodiment, and can be modified in various ways as long as it is configured in a manner that allows the heat generated by the Peltier element to be dissipated by heat exchange with the outside air.

[0214] In this embodiment, a body ventilation device 20 configured with the external shape shown in Figures 5 to 9 is given, but the external shape of the body ventilation device is not limited to this embodiment and can be changed as appropriate.

[0215] In the body ventilation device 20 according to this embodiment, the air outlet 30B may be configured such that an air blower control device can be detachably attached to control the flow of the temperature-controlled air FL that is blown out. With such an air blower control device, the body ventilation device according to this disclosure can blow the temperature-controlled air from the outlet of the attached air blower control device in a desired direction.

[0216] In the above embodiment, the number of protrusions 54 was 4. However, it is not limited to this. For example, the number of protrusions 54 may be 3 or less, or 5 or more. However, it is preferable that the number of protrusions 54 is the same as the number of fixed rails 31. This is because if the number of protrusions 54 and the number of fixed rails 31 are different, it becomes difficult to attach the body ventilation device 20 to the temperature-controlled vest 1.

[0217] In the above embodiment, the number of fixed rails 31 was 4. However, it is not limited to this. For example, the number of fixed rails 31 may be 3 or less, or 5 or more. However, it is preferable that the number of fixed rails 31 be the same as the number of protrusions 54. This is because if the number of protrusions 54 and the number of fixed rails 31 are different, it becomes difficult to attach the body ventilation device 20 to the temperature-controlled vest 1.

[0218] In the above embodiment, the number of restricting portions 32 provided on each of the multiple sliding surfaces 33 was four. However, it is not limited to this. For example, the number of restricting portions 32 provided on each of the multiple sliding surfaces 33 may be three or less, or five or more.

[0219] In the above embodiment, the number of gaps 34 was four. However, it is not limited to this. For example, the number of gaps 34 may be three or less, or five or more.

[0220] In the above embodiment, all of the multiple fixed rails 31 have an inclination angle θ1 of 3° between one end 31a and the other end 31b on the sliding surface 33. However, it is not limited to this. For example, the inclination angle θ1 between one end and the other end on the sliding surface 33 of all of the multiple fixed rails may be less than 3° or greater than 3°. However, if the inclination angle θ1 is less than 1 degree, the height difference between one end and the other end of the fixed rail will disappear, making it impossible to accommodate various fabric thicknesses, which is undesirable. On the other hand, if the inclination angle θ1 is 10 degrees or more, it will be difficult to sandwich the fabric of the temperature control vest 1 and attach it to the temperature control vest 1, which is undesirable.

[0221] In the above embodiment, the body ventilation device 20 is attached to the temperature-controlled vest 1 by having the back fabric 3B and the outer edge 12 sandwiched between the surface 25 and the ring fastener 50, with each of the multiple protrusions 54 engaging with each of the restricting parts 32. However, the weight of the body ventilation device 20 may cause the back fabric 3B and the outer edge 12, which are sandwiched between the surface 25 and the ring fastener 50, to sag. Therefore, measures may be taken on the back fabric 3B and the outer edge 12 to prevent them from sagging due to the weight of the body ventilation device 20.

[0222] As is clear from the above explanation, this device facilitates the attachment of the body-mounted ventilation device to the fabric of the garment and prevents the device from detaching from the fabric due to unforeseen circumstances. Therefore, it has industrial applicability.

[0223] 1 Vest with body ventilation device 2 Vest body 3 Fabric 11 Insertion hole 20 Body ventilation device 21 Control unit 22 Main body 22S Internal space 23 First housing 24 Second housing 25 Surface 26 Intake section 26A Intake section surface 26B Intake port 27 Outer wall of intake section 27A Outer surface 28 Exhaust section 28A Exhaust section surface 28B Exhaust port 29 Outer wall of exhaust section 29A Outer surface 30B Air outlet 40 Peltier element unit 41 Peltier element 41a One side 41b Other side 42 Heat sink unit 42A Heat sink on the blower side 42B Heat sink on the exhaust side 45 Blower fan 46 Wings 50 Ring fastener 50A First ring fastener 50B Second ring fastener 52 Clamping surface 70S Return channel 71 Return inlet 73 Return outlet 79 Wind direction adjustment wall 79P Branching point Q Air supply area F Air flow path Fa Upstream side Fb Downstream side F1 Return path F2 Air supply path AR Air (wind) CF Cold air HF Warm air FL Temperature-controlled air Sr First channel cross-sectional area Se Second channel cross-sectional area S Total channel cross-sectional area HM Wearer

Claims

1. A clothing attachment structure for a body ventilation device, comprising a main body having an air outlet, a Peltier element disposed in the internal space of the main body, a fin unit having a first fin, and a fan that blows air onto the first fin formed on one surface of the Peltier element, wherein the body ventilation device blows temperature-controlled air, which is either cold air or warm air that has passed from the upstream side to the downstream side of the air, into the garment through the air outlet, wherein the garment attachment structure for a body ventilation device is provided, wherein the garment has an insertion hole formed in the fabric for detachably attaching the body ventilation device, the main body has a surface with a plurality of openings formed on the opposite side of the one surface of the Peltier element, the body ventilation device is provided with a plurality of fixing members that can be attached from the surface side, each fixing member has a connecting portion that can be connected to the opening, and a clamping surface for sandwiching the surface and the fabric, each opening has a connected portion that can be connected to the connecting portion, and the attachment of the body ventilation device to the fabric is, A clothing attachment structure for a body ventilation device, comprising connecting the connecting portion of the first fixing member to the connected portion of the first opening, and connecting the connecting portion of the second fixing member to the connected portion of the second opening, with the fabric sandwiched between the aforementioned surface and the clamping surface.

2. A clothing attachment structure for a body ventilation device according to claim 1, wherein the first opening is an intake section in which an intake port is formed for drawing air into the internal space of the main body, and the second opening is an exhaust section in which an exhaust port is formed for exhausting air to the outside of the main body.

3. A clothing attachment structure for a body blower according to claim 2, wherein the first opening has a first outer peripheral wall formed perpendicularly from the surface with respect to a center line passing through the center of the area inside the peripheral wall forming the first opening, the second opening has a second outer peripheral wall formed perpendicularly from the surface with respect to a center line passing through the center of the area inside the peripheral wall forming the second opening, the outer peripheral surface of the first outer peripheral wall and the outer peripheral surface of the second outer peripheral wall each have the connecting portion formed, and the inner peripheral surface of the plurality of fixing members each have the connecting portion formed.

4. A clothing attachment structure for a body ventilation device according to claim 1, wherein the internal space of the main body portion is provided with a ventilation region for the temperature-controlled air between the downstream side of the fin unit and the air outlet, and the ventilation region is provided with a return inlet portion that communicates with a return channel capable of returning the temperature-controlled air to the upstream side of the first fin.

5. A clothing attachment structure for a body blower according to claim 4, wherein a recirculation outlet portion is formed in the internal space of the main body portion on the upstream side of the first fin, which communicates with and connects to the return flow path, and the air and the recirculated temperature-controlled air merge at the recirculation outlet portion.

6. A clothing attachment structure for a body ventilation device according to claim 4, wherein the ventilation area is provided with a wind direction adjustment unit that divides the airflow after temperature adjustment into a return inlet side and an air outlet side.

7. A clothing attachment structure for a body-use air blower according to claim 6, wherein, at the branching point of the airflow direction adjustment section, the first flow path cross-sectional area Sr is the flow path cross-sectional area Sr of the temperature-controlled air flowing on the return inlet side, the second flow path cross-sectional area Se is the flow path cross-sectional area Se of the temperature-controlled air flowing on the outlet side, and the sum of the first flow path cross-sectional area Sr and the second flow path cross-sectional area Se is the total flow path cross-sectional area S, and the ratio k (%) of the first flow path cross-sectional area Sr to the total flow path cross-sectional area S is 0 < k ≤ 50.

8. A clothing attachment structure for a body ventilation device according to claim 4, wherein the fin unit has a second fin formed on the opposite side of the one surface of the Peltier element, and the blower fan, together with the first fin, sends the air to the second fin.

9. A garment with a body ventilation device, wherein the body ventilation device, which forms the garment attachment structure of the body ventilation device according to any one of claims 1 to 8, is detachably attached to the garment.

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