Ventilation system

Abstract

To enhance the cooling effect. [Solution] A ventilation device is provided for ventilating the inside of a tent that is separated into an outside and an inside by a canopy, comprising: a first casing provided on the outside of the tent and having a fan installed; a second casing provided on the inside of the tent and having a cooling mechanism installed; a ventilation member that connects a first vent provided on the first surface of the first casing on the side closer to the canopy and a second vent provided on the second surface of the second casing on the side closer to the canopy, wherein the second surface is inclined so that it moves away from the ventilation member as it rises.

Description

Technical Field

[0001] The present invention relates to a ventilation device.

Background Art

[0002] Patent Document 1 discloses a ventilation device that takes in cooling air into a tent.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] To enhance the cooling effect.

[0005] As an example, the following solution means are provided.

[0006] [1] A ventilation device for ventilating the interior of a tent partitioned from the outside by a canopy, comprising: a first casing provided outside the tent and housing a fan; a second casing provided inside the tent and housing a cooling mechanism; a ventilation member that communicates a first ventilation hole provided on a first surface of the first casing on the side close to the canopy and a second ventilation hole provided on a second surface of the second casing on the side close to the canopy; a ventilation device in which the second surface is inclined in a direction away from the ventilation member toward the upper part.

[0007] [2] The ventilation device according to [1], wherein the second surface is inclined so as not to interfere with the canopy.

[0008] [3] The ventilation device according to [1] or [2], wherein the first surface is inclined in a direction that moves away from the ventilation member as it rises.

[0009] [4] The ventilation device according to any one of [1] to [3], wherein the second casing has the same shape as the first casing.

[0010] [5] A ventilation device according to any one of [1] to [4], which is inclined in a direction crossing the second surface and to which legs supporting the second casing can be attached.

[0011] [6] The upper surface of the second casing is located higher than the ventilation member. The ventilation device according to any one of [1] to [5], wherein the cooling mechanism extending to a position higher than the ventilation member can be installed in the second casing. [Effects of the Invention]

[0012] It can significantly improve the cooling effect. [Brief explanation of the drawing]

[0013] [Figure 1A] Side view of ventilation device 100. [Figure 1B] Front view of ventilation device 100. [Figure 1C] A side view showing the operating state of the ventilation device 100. [Figure 2A] Perspective side view of main body 1. [Figure 2B] A perspective front view of the main body 1. [Figure 2C] Perspective rear view of main body 1. [Figure 3A] Side view of lid 2. [Figure 3B] Front view of lid 2. [Figure 3C] Rear view of lid 2. [Figure 4A] Side view of ventilation member 3. [Figure 4B] Front view of ventilation member 3. [Figure 5] Perspective side view when the ventilation device 100 is used as an exhaust device. [Figure 6] Perspective side view when the ventilation device 100 is used as an intake device. [Figure 7] Side view of the ventilation member 3. [Figure 8] Perspective side view when the ventilation device 100 is used as a vaporization heat type cooling device. [Figure 9A] Perspective side view when the casing 11 is installed outside the tent at 202. [Figure 9B] Perspective side view when the casing 11 is installed outside the tent at 202. [Figure 10] Schematic diagram of the ventilation device when the cooling mechanism 35 is enlarged in the horizontal direction. [Figure 11] Schematic diagram of the ventilation device when the cooling mechanism 35 is enlarged in the height direction. [Figure 12A] Perspective side view of the ventilation device 300. [Figure 12B] Perspective side view of the ventilation device 300. [Figure 13A] Perspective side view of a modified example of the ventilation device 300. [Figure 13B] Perspective side view of a modified example of the ventilation device 300.

Mode for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

[0015] This embodiment is for ventilating a ventilation target space. Ventilation may be exhaust of the ventilation target space or intake to the ventilation target space, but it is desirable that both exhaust and intake are possible. Hereinafter, as the ventilation target space, a tent (including a shelter) will be mainly exemplified.

[0016] (First Embodiment) Figures 1A and 1B are a side view and a front view of the ventilation device 100, respectively. Figure 1C is a side view showing the ventilation device 100 in use. The ventilation device 100 comprises a main body 1, a lid 2, and a ventilation member 3. These may be a single unit, but it is desirable that they be separable as separate parts for easier transport and storage.

[0017] As shown in Figure 1C, the ventilation space 200 is separated from the outside 202 by a canopy 201, such as a flysheet or skirt in a tent. When the ventilation device 100 is in use, the ventilation member 3 is sandwiched between the canopy 201 and the ground. As a result, the main body 1, the lid 2, and part of the ventilation member 3 are positioned inside the ventilation space 200, while the other part of the ventilation member 3 (the tip side) is positioned outside the ventilation space 200.

[0018] Main unit 1 Figures 2A to 2C are, in order, a perspective side view, a perspective front view, and a perspective rear view of the main body 1. The main body 1 includes a casing 11, a fan mounting member 12, and a power supply mounting member 13.

[0019] The casing 11 has a front 111 and a back 112 facing each other, and two sides 113 connecting them. The casing 11 may also have a bottom. The top of the casing 11 is open, allowing the lid 2 to be attached and detached. The material of the casing 11 is, for example, plastic, and polyethylene or polypropylene is particularly preferred due to its excellent physical properties such as strength, hardness, and impact resistance.

[0020] The front surface 111 is covered by a canopy 201 that separates the ventilation space 200 from the outside 202 when in use (see Figure 1C). A ventilation opening 111a is formed at the bottom of the front surface 111. A ventilation member connection part 114 is provided that protrudes from the front surface 111 toward the ventilation space 200 (opposite the rear surface 112) and communicates with the ventilation opening 111a. A fitting projection 114a is formed on the ventilation member connection part 114, allowing the ventilation member 3 to be attached to and detached from the casing 11.

[0021] A ventilation opening 112a is formed at the top of the rear panel 112. The airflow formed by the fan 4, which will be described later, passes through the ventilation opening 112a. It is desirable to provide a filter 112b at a position corresponding to the ventilation opening 112a on the rear panel 112 to prevent insects such as mosquitoes from entering the ventilation space 200.

[0022] The side surface 113 is structured to accommodate legs 115 that support the casing 11. The legs 115 are fixed to the ground, for example, by pegs. Alternatively, the lower part of the legs 115 may be embedded in the ground (provided that the ventilation openings 111a on the front surface 111 are above ground).

[0023] Here, the front 111 and rear 112 may be upright, but it is preferable that they be inclined as shown in the figure. More specifically, at least the front 111 is inclined with respect to the vertical plane, with the upper part moving further away from the ventilation member connection part 114. In other words, the angle α between the front 111 and the ground between the front 111 and the rear 112 and the front 111 is less than 90 degrees, for example, about 45 to 85 degrees. This angle may be adjustable. In many cases, the canopy 201, such as a flysheet or skirt, is dome-shaped with the bottom flaring outwards, and the inclination of the front 111 helps to reduce interference with the dome-shaped canopy 201.

[0024] Lighting may be added to any position on the casing 11 to provide indirect lighting for the ventilation target space 200.

[0025] The fan mounting member 12 is provided between the front 111 and the rear 112, defining the location for installing the fan 4. Specifically, the fan mounting member 12 is provided so that the fan 4 is fixed in a position opposite to the ventilation opening 112a formed in the rear 112. In a specific example, the fan mounting member 12 has a pair of convex rails 121 attached to two sides 113. By inserting the fan 4 into the convex rails 121 through the opening at the top of the casing 11, the fan 4 is supported and fixed by the lower part of the convex rails 121 and the rear 112.

[0026] The airflow generated by fan 4 has directionality depending on the direction of fan 4's rotation. Therefore, if fan 4 is installed in a certain direction on the fan mounting member 12, air can be drawn in from the space to be ventilated 200 (i.e., the ventilation device 100 can be used as an intake device). If fan 4 is installed in the opposite direction on the fan mounting member 12, air can be exhausted from the space to be ventilated 200 (i.e., the ventilation device 100 can be used as an exhaust device). By constructing the fan mounting member 12 with a convex rail 121, insertion and changing the direction of fan 4 can be easily performed even when the ventilation device 100 is installed on the ground (fixed with pegs, etc.). Note that fan 4 may also be capable of mechanically switching the airflow.

[0027] Fan 4 may be part of the ventilation system 100 or it may be a separate component. Suitable fans for fan 4 include, for example, 12cm or 14cm large-diameter DC motor fans for PCs, which are quiet, have high gas flow efficiency, are readily available, inexpensive, and have stable quality. The number of fans 4 to be installed is also arbitrary; for example, four small-diameter (7cm) fans 4 may be installed. Generally, the smaller the diameter of the fan 4, the lower the power consumption and noise. On the other hand, the larger the diameter of the fan 4, the stronger the airflow. These factors should be considered when installing the optimal fan 4. Furthermore, a remote control circuit unit may be incorporated into the fan 4 so that the power can be turned on and off, and the rotation speed can be controlled by remote control. Additionally, the motor driving the fan 4 may be a DC motor or an AC motor.

[0028] Here, it is desirable that the fan mounting member 12 be positioned at a reasonably high location so that the fan 4 does not get wet and malfunction even if puddles form on the ground due to rain or other reasons. Specifically, it is desirable that the fan mounting member 12 be positioned such that the horizontal plane containing the rotation center of the fan 4 is higher than the horizontal plane containing the upper end of the ventilation member 3 (or the upper end of the ventilation opening 111a). Furthermore, it is even more desirable that the fan mounting member 12 be positioned such that the horizontal plane containing the lower end of the fan 4 is higher than the horizontal plane containing the upper end of the ventilation member 3 (or the upper end of the ventilation opening 111a). For example, the lower end of the fan 4 is 100 mm or more from the bottom surface of the case 11.

[0029] The power supply installation member 13 is provided between the front 111 and the rear 112 and defines a location for installing the power supply for the fan 4. Specifically, the power supply installation member 13 consists of a pair of convex rails 131 attached to the two sides 113 and a partition plate 132. By inserting the partition plate 132 into the convex rails 131 through the opening at the top of the casing 11, a space for the power supply is created.

[0030] The power supply is installed in a space that is enclosed on all sides by the partition plate 132, the front 111, back 112, and sides 113 of the casing 11, and the lid 2, thus protecting the power supply from external impacts. Storing the power supply in a plastic bag within the power supply installation space further improves its water resistance and impact resistance.

[0031] The power supply may be provided by the ventilation device 100 or it may be a separate component. The power supply is not particularly limited in size as long as it fits in the location defined by the power supply installation component 13, but for example it may be a rechargeable USB battery that supplies power to the fan 4 via a USB cable. A fan speed controller or on / off controller may be provided between the fan 4 and the power supply.

[0032] Here, it is desirable to configure the system so that when exhausting or inhaling air, the air hits the power supply installation member 13 (or its partition plate 132). This allows the power supply installed on the power supply installation member 13 to be cooled.

[0033] lid 2 Figures 3A to 3C are, in order, a side view, a front view, and a rear view of the lid 2.

[0034] The lid 2 has a front 21 and a rear 22 facing each other, two sides 23 connecting them, and a top surface 24, but its bottom is open. If the front 111 and rear 112 of the casing 11 are sloped, it is desirable that the front 21 and rear 22 of the lid 2 are also sloped accordingly. The opening at the bottom of the lid 2 is used to cover the top of the casing 11. Specifically, the lid 2 is placed over the casing 11 such that the front 21, rear 22, and sides 23 of the lid 2 are positioned outside the top of the front 111, rear 112, and sides 113 of the casing 11, respectively. This prevents rain from entering the casing 11 through the opening at the top and wetting the fan 4 and power supply located inside the casing 11.

[0035] Furthermore, the lid 2 has an overhang structure 25. The overhang structure 25 is U-shaped (C-shaped) and has a horizontal portion 251 attached to the back surface 22 and an inclined portion 252 attached to the side surface 23. The inclined portion 252 slopes downward from the back surface 22 towards the front surface 21. The overhang structure 25 is not provided on the front surface 21. By providing such an overhang structure 25, it is possible to prevent rain from entering the casing 11 through the ventilation opening 112a formed on the back surface 112 of the casing 11 and causing the fan 4 to malfunction.

[0036] Ventilation member 3 As shown in Figure 1C, the ventilation member 3 is installed facing the ventilation target space 200 from the front surface 111 of the casing 11, forming a ventilation passage between the fan 4 installed inside the casing 11 and the ventilation target space 200.

[0037] Figures 4A and 4B are a side view and a front view of the ventilation member 3, respectively. As an example, the ventilation member 3 has an inner ventilation passage 31, a filter section 32, and an outer ventilation passage 33. The inner end of the inner ventilation passage 31 is connected to the front surface 111 of the casing 11, and its outer end is connected to the inner end of the filter section 32. The outer end of the filter section 32 is connected to the inner end of the outer ventilation passage 33. The outer end of the outer ventilation passage 33 is open to the outside.

[0038] The inner ventilation passage 31 is hollow (for example, cylindrical), and an L-shaped fitting recess 31a is formed in a part of it. The ventilation member 3 is connected to the casing 11 by fitting the fitting projection 114a of the ventilation member connection part 114 in the casing 11 with the fitting recess 31a of the inner ventilation passage 31 in the ventilation member 3. Once connected, the inner ventilation passage 31 of the ventilation member 3 communicates with the ventilation opening 111a formed on the front surface 111 of the casing 11 via the ventilation member connection part 114.

[0039] The filter section 32 should preferably be made of a material that allows air to pass through but prevents small insects (such as mosquitoes) from passing through, such as a sponge. This prevents insects from entering the ventilation target space 200 from the outside 202, even when the ventilation device 100 is not operating. It is also desirable that the filter section 32 be removable and washable.

[0040] The filter section 32 may be cylindrical, but it is preferable that it has a constricted section 32a (including groove-shaped or concave sections). As shown in Figure 1C, this makes it easier to align the canopy 201, such as a flysheet or skirt, with the constricted section 32a and secure the canopy 201 and the filter section 32 with rubber bands or strings. Normally, the flysheet or skirt is free and not fixed to the ground, but by fixing it to the filter section 32 of the ventilation device 100, a reinforcing effect against wind is also created.

[0041] Furthermore, it is desirable that there is no gap between the filter section 32 and the canopy 201 when the canopy is placed over the filter section 32. If there is a gap, insects will enter the ventilation space 200 from the outside 202. To achieve this, for example, in the vertical cross-section near the constricted portion 32a of the filter section 32, the angle β between the tangent at its lower end (the part in contact with the ground) and the ground on the filter section 32 side should be 90 degrees or less, and it is desirable that it be, for example, semicircular or semi-circular in shape.

[0042] The exterior ventilation passage 33 has an opening 33a that faces outwards. It is desirable that this opening 33a is inclined downwards to prevent rain and insects from entering. Furthermore, the vertical cross-section of the exterior ventilation passage 33 is, for example, a triangle with its apex located upwards (see Figure 4B). Lighting may be added near the exterior ventilation passage 33 to enhance safety and security at night.

[0043] The configuration of the ventilation member 3 is not limited to those described above. It can be composed of any number, shape, and size of ventilation passages, and the amount and direction of the airflow can be adjusted as appropriate. For example, a bellows hose may be incorporated between the inner ventilation passage 31 and the main body 1 to allow for flexible installation. Furthermore, it is desirable that the ventilation member 3 be provided with a constricted portion 32a where the canopy 201 is aligned. In addition, at the position where the canopy 201 is aligned in the ventilation member 3, it is desirable that the angle β between the tangent at the lower end of the vertical cross-section of the outer casing of the ventilation member 3 and the ground on the ventilation member 3 side be 90 degrees or less.

[0044] Use as an exhaust system Figure 5 is a perspective side view of the ventilation device 100 when used as an exhaust device, illustrating the airflow. The fan 4 is installed in a predetermined direction so that air from the space to be ventilated 200 is drawn into the casing 11 through the vent 112a on the rear 112. The air from the fan 4 drawn into the casing 11 hits the power supply installation member 13 (partition plate 132). This cools the power supply installed on the power supply installation member 13. The air that hits the power supply installation member 13 is rectified and guided to the vent 111a on the front 111. This air is discharged to the outside 202 through the ventilation member 3.

[0045] Use as an intake device Figure 6 is a perspective side view of the ventilation device 100 when used as an intake device, and the airflow is depicted accordingly. The fan 4 is installed in a predetermined direction so that outside air 202 is drawn into the casing 11 via the ventilation member 3 and the vent 111a on the front 111. This direction is the opposite of that in Figure 5. The air from outside 202 drawn into the casing 11 hits the power supply installation member 13 (partition plate 132). This cools the power supply installed on the power supply installation member 13. The air that hits the power supply installation member 13 is rectified and drawn into the ventilation target space 200 via the vent 112a on the rear 112.

[0046] According to the ventilation device 100 described above, it can be used in addition to an existing tent and can ventilate the space to be ventilated 200. Therefore, there is no need to modify the tent, making it economical.

[0047] (Second Embodiment) The ventilation device 100 according to the first embodiment could be used as both an exhaust device and an intake device, but the second embodiment described below can also be used as an evaporative cooling device. In the following, the common points with the first embodiment will be omitted or simplified in the explanation, and the differences will be mainly described in relation to the ventilation member 3.

[0048] Figure 7 is a side view of the ventilation member 3. This ventilation member 3 has a cooling mechanism 35 that cools the air passing through it. For example, the cooling mechanism 35 includes a cooling device 351 capable of containing a cooling medium and a cooling medium supply member 352 that supplies the cooling medium to it. The cooling medium is a liquid such as water.

[0049] The cooling device 351 can be composed of the filter portion 32 in the ventilation member 3 of the first embodiment (particularly shown in Figures 4A and 4B). In this case, the cooling device 351 (filter portion 32) is made of a sponge material made of polyvinyl alcohol, polyurethane, or polyester (open-cell type polyurethane foam is particularly preferred), and it is desirable that it has a large surface area that comes into contact with the air passing through the ventilation member 3. The cooling device 351 is placed in the ventilation passage of the ventilation member 3 so that the air passing through the ventilation member 3 comes into contact with the cooling medium. The cooling device 351 can also prevent insects such as mosquitoes from entering.

[0050] The cooling medium supply member 352 may be a tray located below the cooler 351, into which the cooling medium is placed. A portion of the cooler 351 is immersed in this cooling medium, and the cooling medium supplied from the cooling medium supply member 352 is contained within the cooler 351.

[0051] Figure 8 is a perspective side view of the ventilation device 100 when used as an evaporative cooling device. The airflow is depicted to match, but it is almost the same as when used as an intake device as shown in Figure 6. When the ventilation device 100 is used as an evaporative cooling device, a cooling medium such as water (and ice if necessary) should be placed in the cooling medium supply member 352. It is also desirable to keep the cooling device 351 itself moist with water.

[0052] As outside air 202 passes through the ventilation member 3, the air is cooled by the cooling mechanism 35. Specifically, the air passing through the ventilation passage of the ventilation member 3 comes into contact with the cooling medium, and as the cooling medium vaporizes, heat is removed from the air, causing it to cool. The cooled air is then drawn into the ventilation target space 200 through the ventilation opening 111a on the front surface 111 of the casing 11.

[0053] As described above, the ventilation device 100 according to the second embodiment can introduce cooling air into the space to be ventilated 200.

[0054] (Third embodiment) In the second embodiment described above, the casing 11, which is equipped with the fan 4, is installed inside the tent (ventilation target space 200). In contrast, as shown in Figures 9A and 9B, the casing 11 may be installed outside 202 of the tent. In this case, the cooling mechanism 35 will be located inside the ventilation target space 200 (inside the tent).

[0055] (Fourth Embodiment) In the second and third embodiments described above, the cooling mechanism 35 needs to be enlarged in order to improve the cooling function. As described in the third embodiment, when the fan 4 is provided on the outside 202 (i.e., when the cooling mechanism 35 is provided inside the tent), it is also possible to enlarge the cooling mechanism 35 horizontally (in the depth direction and / or lateral direction) inside the tent 200, as shown in Figure 10.

[0056] However, because the tent is small, in order to avoid reducing the floor space inside the tent, it is desirable to enlarge the cooling mechanism 35 in the height direction, as shown in Figure 11. However, if the cooling mechanism 35 is made taller, the top of the cooling mechanism 35 will interfere with the tent canopy 201, as shown by the dashed circle in Figure 11.

[0057] Therefore, in the ventilation device 300 according to the fourth embodiment described below, the casing 51 housing the cooling mechanism 35 is tilted, as shown in Figures 12A and 12B. Figure 12A shows the ventilation device 300 used as an exhaust device, and Figure 12B shows the ventilation device 300 used as an intake device. A detailed explanation follows below.

[0058] The ventilation device 300 according to the fourth embodiment includes a casing 51 and a cover 6, in addition to the main body 1, cover 2, and ventilation member 3 of the ventilation device 100 described in the first and second embodiments.

[0059] The casing 51 has a front 511 (the side closer to the tent 201) and a rear 512 (the side further from the tent 201) that face each other, and two side surfaces 513 connecting them. The casing 51 may also have a bottom surface. The top of the casing 51 is open, and the lid 6 can be attached and detached. The material of the casing 51 is, for example, plastic, and polyethylene is particularly preferred due to its excellent physical properties such as strength, hardness, and impact resistance.

[0060] The front surface 511 is covered by a canopy 201 that separates the ventilation target space 200 from the outside 202 when in use. A ventilation opening 511a is formed at the bottom of the front surface 511. A ventilation member connection part 514 is provided that protrudes from the front surface 511 toward the outside 202 (opposite the rear surface 512) and communicates with the ventilation opening 511a. A fitting projection is formed on the ventilation member connection part 514, allowing the ventilation member 3 to be attached to and detached from the casing 51.

[0061] A ventilation opening 512a is formed at the top of the rear panel 512. The airflow created by the fan 4 housed within the casing 11 passes through the ventilation opening 512a. It is desirable to provide a filter 512b at a position corresponding to the ventilation opening 512a on the rear panel 512 to prevent insects such as mosquitoes from entering the ventilation space 200.

[0062] The side surface 513 has a structure to which legs 515 supporting the casing 51 can be attached (or already attached). The legs 515 are fixed to the ground, for example, by pegs. Alternatively, the lower part of the legs 515 may be embedded in the ground (however, the ventilation opening 511a of the front surface 511 must be above ground). By providing the legs 515, the casing 51 is supported not only by its bottom but also by the legs 515, increasing the contact area and making it less likely to tip over.

[0063] Here, the front 511 and rear 512 may be upright, but it is preferable that they be inclined as shown in the figure. More specifically, at least the front 511 is inclined with respect to the vertical plane, with the upper part moving further away from the ventilation member connection part 514 (ventilation member 3). In other words, the angle β between the ground between the front 511 and the rear 512 and the front 511 is less than 90 degrees, for example, about 45 to 85 degrees. This angle may be adjustable. In many cases, the canopy 201, such as a flysheet or skirt, is dome-shaped with the bottom flaring outwards, and the inclination of the front 511 helps to reduce interference with the dome-shaped canopy 201.

[0064] Furthermore, the legs 515 are inclined in a direction that crosses the front surface 511 (the upper part approaches the ventilation member connection part 514).

[0065] It is desirable that the casing 51 has the same shape as the casing 11. That is, it is desirable that it be symmetrical with respect to the vertical plane through which the ventilation member 3 passes. This allows for a reduction in the number of parts and a reduction in parts and mold costs. In this case, the lid 6 can also have the same shape as the lid 2.

[0066] The cooling mechanism 35 is housed within the casing 51 described above. The configuration of the cooling mechanism 35 may be as described in the second embodiment. The cooling mechanism 35 may also serve as the filter 512b. Because the upper part of the casing 51 extends to a high position, a large cooling mechanism 35 can be installed in the height direction. For example, because the upper part of the casing 51 is at a higher position than the ventilation member 3, a cooling mechanism 35 that extends to a position higher than the ventilation member 3 can be installed.

[0067] As shown in Figure 12B, air is drawn into the casing 11 from the outside 202 by the fan 4. This air passes through the ventilation member 3, as well as the cooling mechanism 35 and filter 512b inside the casing 51, and is drawn into the tent interior 200 through the vent 512a. The air is cooled as it passes through the cooling mechanism 35, allowing cooled air to be drawn into the tent interior 200.

[0068] In addition, in the ventilation device 300 described in this embodiment, if cooling is not required, the cooling mechanism 35 can be removed and the device can be used without performing its cooling function. Furthermore, as shown in Figures 13A and 13B, the front surface 111 of the casing 11, which is located on the outside 202 of the tent, does not need to be inclined.

[0069] As described above, according to this embodiment, since the front surface 511 of the casing 51 is inclined, a cooling mechanism 35 with high cooling capacity can be installed while effectively utilizing the internal space of the tent (ventilation target space 200).

[0070] Furthermore, this ventilation device 100 is particularly suitable for single-wall tents without a floor, as well as double-wall tents with a floor (including those where only the vestibule is double-walled), and tents with a flysheet that reaches the ground and has installation space in the vestibule.

[0071] Each invention described herein is not limited to the individual embodiments described above, and various additions, modifications, combinations, and partial deletions are possible as appropriate. For example, what is described herein as a single device (or a single component, hereinafter the same) (including what is depicted as a single device in the drawings) may be implemented by multiple devices. Conversely, what is described herein as multiple devices (including what is depicted as multiple devices in the drawings) may be implemented by a single device. Alternatively, some or all of the means or functions that are included in one device may be included in another device.

[0072] Furthermore, parts of one embodiment may be incorporated into another embodiment, to the extent that they do not create a contradiction. Moreover, not all matters described herein are essential requirements. In particular, matters described herein but not in the claims are optional and additional.

[0073] Furthermore, the applicant is merely aware of the prior art inventions described in the "Prior Art Documents" section of this specification, and each invention described herein is not necessarily intended to solve the problems of those prior art inventions. The problems that the inventions described in the claims aim to solve should be determined by considering this specification as a whole. For example, in this specification, if a certain configuration produces a predetermined effect (including cases where it is explicitly stated or can be inferred from the configuration), it can also be said that the problem that is the inverse of that predetermined effect is solved. However, this does not necessarily mean that such a specific configuration is an essential requirement. [Explanation of Symbols]

[0074] 200 Ventilated space (inside the tent) 201 Tent 202 External 100,300 Ventilation equipment 1 Main unit 11.51 Casing 111,511 Front 111a, 511a Ventilation opening 112,512 Back 112a, 112b, 512a, 512b Ventilation openings 113,513 Side view 114,514 Ventilation member connection part 114a Fitting protrusion 115,515 legs 12 Fan mounting components 121 Convex rail 13 Power supply installation components 131 Convex rail 132 Partition Plate 2,6 lid 21 Front 22 Back 23 Side view 24 Top side 25 eaves structure 251 horizontal part 252 Slope section 3. Ventilation component 31 Internal ventilation channel 31a Fitting recess 32 Filter section 32a Waist area 33. External ventilation channel 33a aperture 35 Cooling mechanism 351 Cooling device 352 Cooling medium supply member 4 Fans

Claims

1. A ventilation device for ventilating the inside of a tent, which is separated from the outside by a canopy. A first casing, which is installed outside the tent and houses a fan, A second casing, which is provided inside the tent and houses a cooling mechanism, The device comprises a ventilation member that connects a first ventilation opening provided on the first surface of the first casing closest to the canopy and a second ventilation opening provided on the second surface of the second casing closest to the canopy, The second surface is inclined so that it moves away from the ventilation member as it approaches the top, in a ventilation device.

2. The ventilation device according to claim 1, wherein the first surface is inclined in a direction that moves away from the ventilation member as it rises.

3. The ventilation device according to claim 1 or 2, wherein the second casing has the same shape as the first casing.

4. The ventilation device according to claim 1 or 2, wherein a leg is attached to which the second casing is inclined in a direction intersecting the second surface.

5. The upper surface of the second casing is located higher than the ventilation member. The ventilation device according to claim 1 or 2, wherein the second casing can be fitted with the cooling mechanism that extends to a position higher than the ventilation member.

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