Cooling garment

Abstract

To ensure stable water mist generation on a cooling garment with a fan equipped with a mist generation module which atomizes water inside the garment.SOLUTION: In a cooling garment 1 equipped with mist generation modules 13, 14, 15 and 16 which make water into mist on an inner side, each of the mist generation modules 13, 14, 15 and 16 includes: a container in which one face side is open; a perforated diaphragm attached to an opening of the container; a vibrator which vibrates the perforated diaphragm; and water inlet and outlet ports provided in the container. The mist generation modules 13, 14, 15 and 16 are connected in series, water in a water container 18 is supplied to the mist generation modules 13, 14, 15 and 16, and water is finally returned to the water container 18.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to cooling clothing that has a mist generating module that atomizes water attached to the inside of the fan-equipped clothing. [Background technology]

[0002] Cooling clothing has been proposed that has a mist-generating module attached to the inside of the fan-equipped clothing to atomize water. Specifically, first and second mist generating modules that atomize water are attached to the inside of the fan-equipped clothing, and water is supplied to the first and second mist generating modules from separate water containers via pipes. The mist generated by the first and second mist generating modules is released into the clothing and diffused within the clothing by the fan's wind (a similar prior document is, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-102923 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional example, mist is emitted into the clothing, so that the temperature inside the clothing can be lowered by the heat of vaporization of water. In other words, when the temperature is high, it is difficult to lower the temperature inside the clothes even if a fan is used to draw air from outside the clothes into them. However, by utilizing the heat of evaporation of the mist (water), the temperature inside the clothes can be sufficiently lowered even when the temperature is high, thereby increasing comfort.

[0005] However, a problem with mist generating modules is that air can become trapped inside the mist generating module, preventing the water from turning into mist.

[0006] Therefore, an object of the present invention is to make it possible to stably produce mist from water. [Means for solving the problem]

[0007] To achieve this object, the present invention provides a fan-equipped cooling garment equipped with first and second mist generating modules fitted inside that turn water into mist, each of the first and second mist generating modules comprising a container open on one side, a perforated diaphragm fitted to the opening of the container, a vibrator that vibrates the perforated diaphragm, and a water inlet port and a water outlet port on the container, the water container being connected to the water inlet port of the first mist generating module via a first pipe, the water outlet port of the first mist generating module being connected to the water inlet port of the second mist generating module via a second pipe, and the water container being connected to the water outlet port of the second mist generating module via a third pipe, and the water in the water container being returned to the water container by a pump via the first pipe, the first mist generating module, the second pipe, the second mist generating module, and the third pipe. In addition, the cooling garment of the present invention has an opening area of ​​the perforated vibration plate of the first mist generating module that is larger than the opening area of ​​the perforated vibration plate of the second mist generating module, and the opening of the third pipe is set lower than the first and second mist generating modules. Furthermore, the pump in the cooling garment of the present invention was disposed between the water container and the water inlet port of the first mist generating module. [Effects of the Invention]

[0008] As described above, the present invention provides a fan-equipped cooling garment equipped with first and second mist generating modules fitted inside that atomize water. Each of the first and second mist generating modules comprises a container open on one side, a perforated diaphragm fitted to the opening of the container, a vibrator that vibrates the perforated diaphragm, and a water inlet and outlet ports on the container. The water inlet port of the first mist generating module is connected to a water container via a first pipe, the water outlet port of the first mist generating module is connected to the water inlet port of the second mist generating module via a second pipe, and the water outlet port of the second mist generating module is connected to the water container via a third pipe. Water in the water container is returned to the water container by a pump via the first pipe, first mist generating module, second pipe, second mist generating module, and third pipe, ensuring stable mist generation. In other words, in the present invention, the first and second mist generating modules are connected in series and the water in the water container is returned to the water container via the first and second mist generating modules. Therefore, even if bubbles are generated in the first and second mist generating modules, they can be discharged into the water container, thereby enabling stable mist generation in the first and second mist generating modules. Furthermore, connecting the first and second mist generating modules in series in this way increases the overall amount of mist compared to when the first and second mist generating modules are driven individually, which contributes to lowering the temperature inside the clothing. The reason why the overall amount of mist increases when the first and second mist generating modules are connected in series has not yet been fully elucidated, but it is believed to be due to the following reasons. In other words, when the bubbles generated in the first mist generating module flow through the second pipe to the second mist generating module, the vibration of the perforated vibrating plate of this second mist generating module causes the bubbles from the first mist generating module to be broken down into fine bubbles, and as a result, the water density in the container of the second mist generating module decreases (the vibration load on the perforated vibrating plate decreases), which is thought to increase the amount of mist in the second mist generating module. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a front view showing a state in which the front body of a cooling garment according to an embodiment of the present invention is opened to the left and right. [Figure 2] FIG. 10 is an exploded perspective view showing a fan mounting portion of the cooling suit. [Figure 3] Water circuit diagram showing the water atomization configuration of the cooling suit [Figure 4] A cross-sectional view showing the mist generation module of the cooling suit. [Figure 5] Front view cut along line VV in Figure 4 [Figure 6] Electrical circuit diagram of the cooling suit [Figure 7] FIG. 10 is a front view showing a mist generating module of a cooling garment according to another embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0010] (Embodiment 1) FIG. 1 is a front view showing a state in which the front body part 2 of the cooling garment 1 is opened to the left and right. The cooling garment 1 is made of non-breathable fabric and can be opened and closed from the left and right by a zipper 3 on the front body 2. A fan 5 is attached to the lower part of the back body 4, and this fan 5 can take air outside the cooling garment 1 into the cooling garment 1. The air taken into the cooling suit 1 by the fan 5 is expelled to the outside of the cooling suit 1 from, for example, the collar 6. As shown in Figure 2, the air blowing section 7 of the fan 5 is inserted from the outside of the cooling garment 1 into an opening 8 provided in the back body 4, and the fan 5 is attached to the cooling garment 1 by attaching a fastener 9 inside the cooling garment 1. In other words, air outside the cooling garment 1 is taken into the fan 5 through the air intake section 10 of the fan 5, blown out into the cooling garment 1 through the air outlet section 7 of the fan 5, passes through the cooling garment 1, and is discharged outside the cooling garment 1, for example, from the collar 6. The fan 5 includes a rotary blade 11 and a motor 12 that drives the rotary blade 11. The above configuration is a conventionally known general structure, and the features of this embodiment will be described below.

[0011] As shown in FIG. 1, a plurality of mist generating modules 13, 14, 15, and 16 for turning water into mist are arranged horizontally within the cooling suit 1. These mist generating modules 13, 14, 15, and 16 basically have the same structure, so the structure of the mist generating module 13 will be described with reference to FIGS. As shown in Figures 4 and 5, the mist generating module 13 comprises a circular container A with one open side, a perforated vibration plate C attached to the opening 30 of this container A via a ring-shaped cushion material B, a ring-shaped vibrator D attached to the side of the perforated vibration plate C opposite the cushion material B and vibrating the perforated vibration plate C, and a water inlet port E and a water outlet port F provided in the container A. The surface of the vibrator D opposite to the perforated diaphragm C is covered with a perforated cover G at a predetermined distance from the vibrator D. That is, the cover G with holes is provided to prevent the vibration of the vibrator D from being hindered by contact with other clothing or the like. Furthermore, the cushion material B is a closed-cell cushion material, and by using this, the vibration of the vibrator D is not hindered. On the other hand, a circular substrate H is placed on the bottom of the container A, and two electrodes I for detecting the presence or absence of water are placed on the inner surface of the container A side of this substrate H. Furthermore, an electronic component J (see FIG. 6) for determining the presence or absence of water by detecting water with an electrode I is disposed on the outer surface of the container A of the substrate H.

[0012] The mist generating modules 13, 14, 15, and 16 having the above-described structure are arranged horizontally within the cooling suit 1 as shown in FIG. Of these, the mist generating modules 14 and 15 are attached to the air blowing portion 7 of the fan 5 as shown in FIGS. Specifically, it is attached to the air blowing part 7 corresponding to the axial center of the motor 12 of the fan 5. The water inlet port E of the mist generating module 13 is connected to a water container 18 via a flexible pipe 17 as shown in FIG. Furthermore, the water outlet port F of the mist generating module 13 is connected to the water inlet port E of the mist generating module 14 via a flexible pipe 19 . Next, the water outlet port F of the mist generating module 14 is connected to the water inlet port E of the mist generating module 15 via a flexible pipe 20 . Next, the water outlet port F of the mist generating module 15 is connected to the water inlet port E of the mist generating module 16 via a flexible pipe 21 . Next, the water outlet port F of the mist generating module 16 is connected to a water container 18 via a flexible pipe 22 . The water container 18 is placed on the cooling garment 1 so as to be located below the mist generating modules 13, 14, 15, and 16. To accommodate the water container 18, the cooling suit 1 is provided with a pocket that is open at the top. The lower end opening of the pipe 17 in the water container 18 is arranged near the bottom of the water container 18 . On the other hand, the lower end opening 29 of the pipe 22 in the water container 18 is arranged so as to open above the highest water level in the water container 18 . The pump 23 shown in Figure 1 is placed between the water container 18 and the water inlet port E of the mist generating module 13, but in this embodiment, as can be seen from the water channel diagram shown in Figure 3, a type is used in which the outer surface of a flexible pipe 17 is rolled with rollers 24. In FIG. 1, the battery 25 is for the pump 23 and the battery 26 is for the fan 5, but since the power supply for the pump 23 is small, it may be branched off from the battery 26.

[0013] In the above configuration, when the cooling garment 1 is worn and the fan 5 is driven, air outside the cooling garment 1 is taken into the fan 5 through the air intake section 10 of the fan 5, blown into the cooling garment 1 through the air blowing section 7, and then passed through the cooling garment 1 and discharged outside the cooling garment 1, for example from the collar 6. Furthermore, when the pump 23 is driven, the water in the water container 18 flows through the pipe 17, the mist generating module 13, the pipe 19, the mist generating module 14, the pipe 20, the mist generating module 15, the pipe 21, the mist generating module 16, the pipe 22, and the water container 18, as shown in FIG. In this state, when the mist generating modules 13, 14, 15, and 16 are driven, mist is emitted from each of the mist generating modules 13, 14, 15, and 16 into the cooling garment 1. In particular, since the mist generating modules 14, 15 are attached to the air blowing portion 7 of the fan 5, the mist from the mist generating modules 14, 15 is forcefully released and diffused within the cooling garment 1 by the air blown out from the fan 5. Furthermore, the mist emitted from the mist generating modules 13 and 16 is also diffused within the cooling garment 1 by the air blown out from the fan 5 . As a result, the temperature inside the cooling garment 1 drops due to the heat of vaporization of the mist (water), increasing comfort.

[0014] Furthermore, when mist generating modules 13, 14, 15, and 16 are driven, air bubbles are generated within the container A of each mist generating module 13, 14, 15, and 16. This is thought to be caused by the perforated diaphragm C sucking in outside air as a reaction to the mist being expelled, or by cavitation caused by ultrasonic vibrations. When these air bubbles fill container A, the generation of mist physically stops. In this embodiment, mist generating modules 13, 14, 15, and 16 are connected in series, so the air bubbles generated within each container A are carried one after another by the water flow and discharged into water container 18 through pipe 22. Therefore, in the mist generating modules 13, 14, 15, and 16, the mist generation will not be stopped by the air bubbles.

[0015] Furthermore, when mist generating modules 13, 14, 15, and 16 are connected in series, the amount of mist generated can be increased compared to when mist generating modules 13, 14, 15, and 16 are driven individually (one by one) and the total amount of mist generated is used as the amount of mist generated. Specifically, when mist generating modules 13, 14, 15, and 16 were driven individually, the amount of mist generated was 175.59 ml / h; however, when mist generating modules 13, 14, 15, and 16 were all operated in series as in this embodiment, the amount of mist was 180.15 ml / h, which is an increase of approximately 2.53% (in the experiment, the water container 18 was placed on a precision balance in the state shown in Figure 3, and the amount of mist generated was measured from the change in weight per unit time). The reason why the amount of mist can be increased has not been fully elucidated, but the current thinking is as follows. When mist generating modules 13, 14, 15, and 16 are connected in series, the bubbles generated in the upstream mist generating modules 13, 14, and 15 are transported into the next mist generating modules 14, 15, and 16, but inside container A of the downstream mist generating modules 14, 15, and 16 the bubbles break down again and become cloudy.This state means that the apparent density of the water is reduced, so the ultrasonic vibration load is reduced and, as a result, the amount of mist generated is thought to be increased.

[0016] After the above operations, when the mist generating modules 13, 14, 15, 16 and the pump 23 are stopped, the water in the containers A of the mist generating modules 13, 14, 15, 16 is collected into the water container 18 via the pipe 22. To achieve this, in this embodiment, the lower end opening 29 of the pipe 22 is set lower than the mist generating modules 13, 14, 15, and 16 (see FIG. 1). The pump 23 is disposed between the water container 18 and the water inlet port E of the most upstream mist generating module 13 . As a result, the water in the container A of each mist generating module 13, 14, 15, 16 is collected into the water container 18 via the pipe 22, so that water does not stagnate in each container A, preventing the formation of slime in the water and providing a hygienic effect.

[0017] Of the mist generating modules 13, 14, 15, and 16, the opening area of ​​the micropores provided in the perforated diaphragm C of the mist generating module 13, which is the most upstream, is larger than the opening area of ​​the micropores provided in the perforated diaphragm C of at least one of the other mist generating modules 14, 15, and 16. In other words, the opening area of ​​the micropores provided in the perforated diaphragm C of the mist generating module 13 is not the smallest compared to the opening area of ​​the micropores provided in the perforated diaphragm C of the other mist generating modules 14, 15, and 16. As a result, when the pump 23 stops, the water film in the micropores of the upstream mist generating module 13 breaks and is released to the atmosphere before the other mist generating modules 14, 15, and 16, which have smaller opening areas than the micropores of this mist generating module 13, do, and the water in container A is also recovered into the water container 18 via the next mist generating module 14, 15, and 16.

[0018] Generally, the amount of mist generated is proportional to the opening area of ​​the micropores. Therefore, it is important to ensure that the amount of mist generated by the most upstream mist generating module 13 is not smaller than that of the other mist generating modules 14, 15, and 16, and by visually checking this amount of mist generated, it can be confirmed that this embodiment is being implemented. Furthermore, unlike the present invention, if the mist generating modules are connected in parallel, when one of the containers A becomes filled with bubbles, the surface tension of the bubbles will block the outlet port F of that mist generating module, forcing the water flow to bypass the other mist generating modules and causing the blocked mist generating module to stop generating mist. Furthermore, with parallel connections, when the pump is stopped, even a slight pressure difference can prevent all the water in the tubes and container A from being collected, which can lead to unsanitary conditions.

[0019] FIG. 6 shows a circuit diagram of the mist generating modules 13, 14, 15, and 16. When water is present between the two electrodes I, the electrical resistance drops and the port of the microcomputer 27 switches from HI to LOW, making it possible to detect the presence or absence of water. If water is present, the microcomputer 27 outputs a 108 kHz or 113 kHz square wave and an opposite-phase square wave to drive the mist generating modules 13, 14, 15, and 16 via the H-bridge driver IC 28, which is used to control the forward and reverse rotation of the pump 23. When the water in the containers A of the mist generating modules 13, 14, 15, and 16 runs out, the operation of the mist generating modules 13, 14, 15, and 16 is stopped to prevent the modules from running dry. If the battery 26 for the fan 5 in FIG. 1 is the same as the battery 25 for the pump 23 and the mist generating modules 13, 14, 15, and 16, it is possible to change the amount of mist in conjunction with the strength of the fan 5. Furthermore, if the battery 25 that drives the pump 23 is a separate power source, stopping the pump 23 will stop the water flow, and the water sensors (detecting between two electrodes I) of the mist generating modules 13, 14, 15, and 16 will react, stopping the mist. Therefore, it is possible to select ON / OFF of mist generation by turning on / off the pump 23.

[0020] (Embodiment 2) FIG. 7 shows another embodiment of the present invention. In this embodiment, the mist generating modules 13, 14, 15, and 16 comprise a circular container A with one open side, a perforated vibration plate C attached to the opening 30 of the container A via a ring-shaped cushion material B, a ring-shaped vibrator D attached to the side of the perforated vibration plate C opposite the cushion material B and vibrating the perforated vibration plate C, and a water inlet port E and a water outlet port F provided in the container A. In this embodiment, the water inlet port E is located above the container A, just like the water outlet port F, to make it easier to connect the pipes 17, 19, 20, 21, and 22, but the water inlet port E extends downward within the container A and opens there. In other words, in the embodiment of Figure 7, as in the embodiments of Figures 4 and 5, water flowing into container A from water inlet port E flows across container A over electrode I toward water outlet port F.

[0021] The present invention also includes embodiments in which mist generating modules 13 and 16 are attached to fan 5, embodiments in which any of mist generating modules 13, 14, 15, and 16 is attached to fan 5, and embodiments in which mist generating modules 13, 14, 15, and 16 are not attached to fan 5. Furthermore, the present invention allows for any number of mist generating modules. Therefore, the number of mist generating modules may be two, three, five or more. The present invention also includes an embodiment in which the opening area of ​​the perforated diaphragm C of the mist generating module 13 is the same as the opening area of ​​the perforated diaphragm C of the mist generating modules 14, 15, and 16, and an embodiment in which the opening area of ​​the perforated diaphragm C of the mist generating module 13 is smaller than the opening area of ​​the perforated diaphragm C of the mist generating modules 14, 15, and 16. The present invention also includes embodiments in which the pump 23 is located at a position other than between the water container 18 and the water inlet port E of the mist generating module 13 .

[0022] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design modifications can be made to the present invention without departing from the scope of the claims. [Explanation of symbols]

[0023] 1 cooling garment 2 Front 3 Zipper 4 Back body 5 Fans 6. Collar 7 Air outlet 8 Openings 9 Fasteners 10 Air intake section 11 Rotating blades 12 motors 13 Mist generation module 14 Mist generation module 15 Mist generation module 16 Mist generation module 17 Pipe 18 water container 19 Pipe 20 Pipe 21 Pipe 22 Pipe 23 Pump 24 Laura 25 Batteries 26 Batteries 27 Microcomputer 28 H-bridge driver ICs 29 Bottom opening 30 Opening A container B. Cushioning material C Perforated diaphragm D vibrator E. Inlet port F Outlet port G-hole cover H control board I electrode J Electronic parts

Claims

1. A cooling garment with a fan, the cooling garment having first and second mist generating modules for atomizing water attached to the inside thereof, The first and second mist generating modules each include a container having an opening on one side, a perforated vibration plate attached to the opening of the container, a vibrator for vibrating the perforated vibration plate, and a water inlet port and a water outlet port provided in the container, a water container is connected to the water inlet port of the first mist generating module via a first pipe, a water inlet port of the second mist generating module is connected to the water outlet port of the first mist generating module via a second pipe, and the water container is connected to the water outlet port of the second mist generating module via a third pipe; A cooling garment configured to return the water in the water container to the water container using a pump via the first pipe, the first mist generating module, the second pipe, the second mist generating module, and the third pipe.

2. 2. The cooling garment of claim 1, wherein the opening area of ​​the perforated vibration plate of the first mist generating module is larger than the opening area of ​​the perforated vibration plate of the second mist generating module, and the lower end opening of the third pipe is set lower than the first and second mist generating modules.

3. 3. The cooling garment of claim 2, wherein the pump is disposed between the water container and the water inlet port of the first mist generating module.

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