KR102367511B1 - Ventilation pad and ventilation pad system including the same - Google Patents

Abstract

Disclosed is a ventilation pad system, which can maximize a ventilation effect of a ventilation pad by creating a uniform and smooth air flow even when being in contact with a human body. According to an embodiment of the present invention, a ventilation pad comprises: a pad; and a cover for accommodating the pad. The pad includes: a base plate; a blowing tube connection part formed at the center of one corner of the base plate; a flow guide wall formed to protrude from an upper surface of the base plate along an edge of the base plate around the blowing tube connection part; and a disk array including a plurality of disks protruding from the upper surface of the base plate by being arranged in an area surrounded by the flow guide wall. The disk array can be arranged to allow the disks to have different diameters with respect to a position of the blowing tube connection part and a position of the flow guide wall.

Description

Ventilation pad and ventilation pad system including the same

The present invention relates to a ventilation pad that is applied to seating means such as bedding, chairs, sofas, and automobile seats to provide a ventilation function, and a ventilation pad system including the same.

It is common for a user to feel uncomfortable because the surface humidity of bedding, chair, sofa, etc. increases due to moisture discharged from the human body while sleeping on bedding such as a mattress or sitting on a chair or sofa. In particular, when the temperature and humidity are high, it is common for the bedding to become wet, making it difficult to sleep comfortably. In addition, in the case of a reclining patient lying in bed for a long period of time, the surface in contact with the body and bedding is blocked from outside air and a large amount of sweat is discharged. Insects such as pests inhabit may cause odor and various skin diseases. When a skin disease occurs in a state where blood circulation is insufficient due to continuous pressure on the patient's body, it develops into necrosis of the skin and subcutaneous tissue, resulting in pressure sores. As such, high humidity of bedding is the main cause of bedsores in bedridden patients.

Accordingly, in order to provide a comfortable environment to the user while the user sleeps on a bedding such as a mattress or sits on a chair or sofa, a ventilation mat is used. Some of the ventilation mats known in the prior art use a blower to inject air into the mat to be sprayed into the body through a plurality of discharge holes provided on the mat. However, in such a conventional ventilation mat, the exhaust hole is easily clogged in the mat part in contact with the human body or the part where the body weight is loaded, so smooth ventilation is not achieved, and there is no bypass discharge path for air, so the air flow on the human body contact surface is sharply decreased or blocked and thus failing to achieve the intended purpose of the ventilation pad. In addition, the conventional ventilation mat has problems in that it is difficult to obtain sufficient air volume and flow rate due to flow loss, and the blower device becomes large and the blowing noise increases. In addition, it is difficult to use the conventional ventilation mat for seating devices such as bedding or chairs because of its large volume because a nozzle or a pipe for blowing is inserted therein.

An object of the present invention is to provide a ventilation pad capable of maximizing the ventilation effect of the ventilation pad by generating uniform and smooth air flow even when in contact with a human body, and a ventilation pad system including the same.

A ventilation pad according to an embodiment of the present invention includes a pad; and a cover accommodating the pad.

The pad includes a base plate; a blower tube connecting portion formed in a central portion of one corner of the base plate; a flow guide wall protruding from an upper surface of the base plate along an edge of the base plate around the blower tube connection part; and a disk array including a plurality of disks arranged in an area surrounded by the flow guide wall and protruding from the upper surface of the base plate.

The disk array may be arranged such that the plurality of disks have different diameters based on the location of the blower tube connection part and the location of the flow guide wall.

The flow guide wall may be formed to surround the blower tube connection part in a 'C' shape and to open a rear edge region of the base plate.

The flow guide wall may include: a first flow guide wall protruding from an upper surface of the base plate along two opposing side edges of the base plate; and a second flow guide wall protruding from the upper surface of the base plate along the front edge of the base plate on which the blow tube connection part is formed.

The disk array may include: a pressure chamber array including first disks arranged in a front area adjacent to the blower tube connection part; a ventilation array including second disks arranged in a rear region of the pressure chamber array based on a flow direction of air; a central flow control array including third disks arranged along the flow direction of the air in a central portion of the disk array from the pressure chamber array to the rear edge of the base plate; and a lateral flow control array including fourth disks arranged along a lateral region between a central portion and a side edge of the disk array from the pressure chamber array to the rear edge of the base plate.

the average diameter of the first disks, the average diameter of the third disks, and the average diameter of the fourth disks are smaller than the average disk diameter of the disk array, and the average diameter of the second disks is the average disk diameter of the disk array It can be larger than the diameter.

The cover may include a high friction base supporting the base plate by frictional force; a zipper opening and closing part provided in a structure that can be opened and closed with a zipper along some corners of the cover; a sandwich air mesh formed on the upper surface of the cover in contact with the user's skin and made of an air mesh material that is a sandwich fabric to provide breathability; and a pressure chamber cover attached to the inside of the sandwich air mesh with a breathable fabric material and provided on the inlet side where the blower tube connection part is located.

The base plate, the flow guide wall, and the disk array may be formed of a highly elastic flexible material.

The ventilation pad system according to an embodiment of the present invention includes the ventilation pad; and a blower for supplying air to the ventilation pad.

The blower may include: a blower body for supplying air toward the ventilation pad and controlling a temperature and humidity of the air supplied to the ventilation pad; a blower tube coupled to the blower body to deliver air to the ventilation pad; and a blower tube connector coupled between the blower tube connection part and the blower tube.

The blower tube connector may include: a connector body connected between the blower tube and the blower tube connector, having a 'L'-shaped cross-sectional shape, and having an air passage for transmitting air from the blower tube to the blower tube connector; a blower tube coupling part provided at one end of the connector body for connecting the blower tube, and having an air inlet passage through which air is introduced from the blower tube and communicates with the air passage; and a mat coupling part provided at the other end of the connector body for insertion into the blow tube connection part, air is supplied to the blow tube connection part, and having an air supply passage communicating with the air passage.

The blower body includes: a case; a blower mount provided in the case, made of a flexible material having a vibration absorption function, and having a blower mounting groove and an air flow passage; a centrifugal blower mounted on the blower mounting groove and supplying air through the air flow passage; a heater module provided in the case and heating the air supplied by the centrifugal blower; a temperature controller provided in the case and configured to control the heater module to adjust the air temperature; a wind speed controller provided in the case and controlling the centrifugal blower to adjust the wind speed; and an exhaust port provided in the case and having an exhaust passage for supplying air heated by the heater module to the blower tube.

The blower body may include: an intake anechoic chamber provided in an intake area adjacent to an air inlet through which air is introduced into the case to reduce intake noise; and an exhaust anechoic chamber provided in an exhaust area adjacent to the exhaust port in the case to reduce exhaust noise.

An acoustic wedge panel for noise reduction may be attached to inner walls of the intake anechoic chamber and the exhaust anechoic chamber. The acoustic wedge panel may include a panel and acoustic wedges arranged to protrude from the panel.

According to an embodiment of the present invention, there is provided a ventilation pad system capable of maximizing the ventilation effect of the ventilation pad by generating uniform and smooth air flow even when in contact with a human body.

1 is a view schematically showing a use state of a ventilation pad system according to an embodiment of the present invention.
2 is a perspective view of a pad constituting a ventilation pad system according to an embodiment of the present invention.
3 is a plan view of a pad constituting a ventilation pad system according to an embodiment of the present invention.
4 is a view showing a cover constituting a ventilation pad system according to an embodiment of the present invention.
5 is a flow velocity distribution analysis result of a ventilation pad made of a disk array of uniform size.
6 is a pressure distribution analysis result of a ventilation pad made of a disk array of a uniform size.
7 is a flow velocity distribution analysis result in the case of blocking the periphery and the side of the ventilation tube connection part with a wall in order to block the side discharge path of the ventilation pad.
8 is a pressure distribution analysis result in the case of blocking the periphery and the side of the ventilation tube connection part with a wall in order to block the side discharge path of the ventilation pad.
9 is a flow velocity distribution analysis result of a ventilation pad to which a diameter-controlled disk array (flow control array structure) is applied to solve the blowing resistance problem.
10 is a pressure distribution analysis result of a ventilation pad to which a diameter-adjusted disk array is applied to solve the blowing resistance problem.
11 is a perspective view of a blower tube connector constituting a ventilation pad system according to an embodiment of the present invention.
12 is an exploded perspective view of the blower body constituting the ventilation pad system according to the embodiment of the present invention.
13 is an exploded side view of the blower body constituting the ventilation pad system according to the embodiment of the present invention.
14 is an exemplary view of acoustic wedge panels of an intake anechoic chamber and an exhaust anechoic chamber constituting the ventilation pad system according to an embodiment of the present invention.

Advantages and/or features of the present invention, and methods for achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be embodied in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a ventilation pad applicable to seating means such as bedding, chairs, sofas, and car seats, and by allowing air injected into the pad by a blower to be smoothly discharged while rubbing the human body, it is possible to control the humidity and temperature of the human body surface, , We propose a ventilation pad system that can maximize the ventilation effect by providing sufficient ventilation to the contact surface between the human body and the ventilation pad and creating a uniform air flow, and which can be produced economically.

1 is a view schematically showing a use state of a ventilation pad system according to an embodiment of the present invention. Referring to FIG. 1 , a ventilation pad system 10 according to an embodiment of the present invention may include a ventilation pad 20 and a blower 30 for supplying air to the ventilation pad 20 . The ventilation pad 20 is made of a thin and flexible material and structure having a thickness of about 20 mm, and can be used by placing it on the surface of the bed linen 50 or the bedsore prevention mattress provided in the bed 40 .

1 shows an example in which the ventilation pad system 10 is applied to the mattress 50 of the bed 40, the ventilation pad system 10 according to the embodiment of the present invention is a bedding or a chair other than the bed mattress. Alternatively, it may be applied to a seating means such as a sofa or a vehicle seat. The ventilation pad 20 may be manufactured in various sizes depending on the intended use.

The blower 30 may include a blower body 300 , a blower tube 400 , and a blower tube connector 500 . The ventilation pad 20 and the blower body 300 may be coupled through the blower tube 400 . The blower body 300 may provide a function of supplying air to the ventilation pad 20 and maintaining the temperature and humidity of the air supplied to the ventilation pad 20 at an appropriate level.

2 is a perspective view of a pad constituting a ventilation pad system according to an embodiment of the present invention. 3 is a plan view of a pad constituting a ventilation pad system according to an embodiment of the present invention. 1 to 3 , the ventilation pad 20 may include a pad 100 and a cover 200 accommodating the pad 100 .

The pad 100 includes a base plate 110 , a blow tube connection part 120 formed on the base plate 110 , a flow guide wall 130 , and a disk comprising a plurality of disks 142 , 144 , 146 , 148 . It may include an array 140 .

The plurality of disks 142 , 144 , 146 , and 148 may be arranged in an area surrounded by the flow guide wall 130 to protrude from the upper surface of the base plate 110 . The plurality of disks 142 , 144 , 146 , and 148 may be arranged to be spaced apart from each other. Accordingly, an air flow path is formed between the plurality of disks 142 , 144 , 146 , 148 .

In an embodiment, each of the disks 142 , 144 , 146 , and 148 may be provided in a cylindrical shape (disk shape) for smooth flow of air. In an embodiment, the disks 142 , 144 , 146 , 148 have an average diameter in the range of approximately 10 mm to 40 mm, and the spacing between adjacent disks 142 , 144 , 146 , 148 (between the centers of adjacent disks). distance) may be designed within the range of 30 mm to 60 mm, and the disk height on the base plate 110 may be designed within the range of 10 mm to 20 mm.

The base plate 110 may be provided as a thin plate having a substantially rectangular shape. The base plate 110 may be made of a highly elastic flexible material such as urethane foam. The upper and lower surfaces of the base plate 110 may be formed as flat surfaces so that the user does not feel uncomfortable when lying or sitting.

The blower tube connection part 120 may be formed in a central portion of one corner of the base plate 110 . The blower tube connector 120 may include an insertion hole 122 into which the blower tube connector 500 is inserted. The insertion hole 122 may be formed to have a length of about 1/3 of the length of one edge of the base plate 110 . The height of the insertion hole 122 may be formed as thin as less than 20 mm.

The flow guide wall 130 may be formed of the same high elastic flexible material as the base plate 110 , such as urethane foam. The flow guide wall 130 may be formed such that the rear edge region of the base plate 110 is opened. The open portion of the flow guide wall 130 serves as a bypass discharge path for guiding air to flow smoothly along the first direction (X) from the blower tube connection portion (120).

The flow guide wall 130 may include a first flow guide wall 132 and a second flow guide wall 134 . The first flow guide wall 132 may be formed to protrude from the upper surface of the base plate 110 along two opposite side edges of the base plate 110 . The first flow guide wall 132 may be formed in a first direction (X) parallel to the side edge of the base plate 110 .

The second flow guide wall 132 may be formed to protrude from the upper surface of the base plate 110 along the edge of the base plate 110 on which the blow tube connection part 120 is formed. The second flow guide wall 132 extends from the end of the first flow guide wall 132 toward the blow tube connection part 120 in the vertical direction in the second direction (Y) parallel to the front edge of the base plate 110 . can be formed.

Accordingly, the flow guide wall 130 surrounds the periphery of the blow tube connection part 120 by the first flow guide wall 132 and the second flow guide wall 134 in an approximately 'C' shape, and the blow tube connection part After the air supplied through 120 is prevented from escaping to the side around the blower tube connection part 120, the air moves in the first direction (X) and flows to the rear edge opposite to the blower tube connection part 120 to be expelled.

The disk array 140, like the base plate 110 and the flow guide wall 130, may be formed of a highly elastic flexible material such as urethane foam. The disks 142 , 144 , 146 , and 148 of the disk array 140 may be arranged in a matrix structure along the first direction (X) and the second direction (Y) to support the human body.

The disk array 140 may be arranged such that the plurality of disks 142 , 144 , 146 , and 148 have different diameters based on the position of the blower tube connection part 120 and the position of the flow guide wall 130 . That is, some of the disks 142 , 144 , 146 , and 148 may be arranged in an array structure in which a diameter is adjusted for flow control.

In an embodiment, the disk array 140 comprises a pressure chamber array 142 comprising first disks 142a, 142b, and a ventilation array 144 comprising second disks 144a, 144b, 144c, 144d. , a central flow control array 146 including the third disks 146a, and a lateral flow control array 148 including the fourth disks 148a and 148b.

The pressure chamber array 142 may be disposed in a front area adjacent to the blower tube connection part 120 . The first disks 142a and 142b of the pressure chamber array 142 include a plurality of central disks 142a formed in the rear region of the central portion of the blower tube connection part 120, the central disks 142a, and the first flow guide. It may include a number of lateral disks 142b formed between the walls 132 .

In order to smooth the airflow in the area of the pressure chamber array 142 and to properly control the air pressure, a plurality of lateral disks 142b of the first disks 142a and 142b are the average disks of the disk array 140 . It may be provided to have a first diameter (D1) smaller than the diameter.

The ventilation array 144 may be provided in the rear region of the pressure chamber array 142 based on the air flow direction. The second disks 144a , 144b , 144c , and 144d of the ventilation array 144 may be formed to have a second diameter D2 greater than an average disk diameter of the disk array 140 .

The second disks (144a, 144b, 144c, 144d) are between the central flow control array 146 and the side flow control array 148, and between the side flow control array 148 and the first flow guide wall 132. can be arranged in between.

The central flow control array 146 may be formed in the first direction (X) along the center direction of the disk array 140 from the pressure chamber array 142 to the rear edge of the base plate 110 . The third disks 146a of the central flow control array 146 may be formed to have a third diameter D3 smaller than the average disk diameter of the disk array 140 .

The lateral flow control array 148 may be formed in the first direction (X) along the lateral region between the center and the edge of the disk array 140 from the pressure chamber array 142 to the rear edge of the base plate 110 . . The fourth disks 148a and 148b of the lateral flow control array 148 may be formed to have a fourth diameter D4 reduced from the average disk diameter and the third diameter D3 of the disk array 140 . .

In order to ensure a uniform pressure and flow distribution over the entire surface of the ventilation pad, the first diameter D1 of the lateral disk 142b constituting the pressure chamber array 142, the second disks of the ventilation array 144 ( The second diameter D2 of 144a, 144b, 144c, 144d, the third diameter D3 of the third disks 146a of the central flow control array 146, the fourth disk of the side flow control array 148 The fourth diameter D4 of the poles 148a and 148b may be designed to satisfy the condition D1 = D4 < D3 < D2.

At this time, the first diameter D1 of the lateral disk 142b constituting the pressure chamber array 142 is designed within a range of 10 mm to 30 mm, and the second disks 144a , 144b , 144c of the ventilation array 144 . , 144d) of the second diameter (D2) may be designed within the range of 25 mm to 40 mm.

In addition, the third diameter D3 of the third disks 146a of the central flow control array 146 is designed within a range of 20 mm to 35 mm, and the fourth disks 148a of the side flow control array 148, The fourth diameter D4 of 148b) may be designed within a range of 10 mm to 30 mm.

4 is a view showing a cover constituting a ventilation pad system according to an embodiment of the present invention. 1 and 4 , the cover 200 for accommodating the pad 100 may include a high friction base 210 , a zipper opening/closing unit 220 , a sandwich air mesh 230 , and a front power chamber cover 240 . can

The cover 200 may be provided so that the pad 100 can be inserted. The high friction base 210 may be made of a material having a high frictional force with the base plate 110 constituting the pad 100 .

The zipper opening/closing unit 220 may be formed along some corners of the cover 200 so that the pad 100 can be inserted into or taken out of the cover 200 to have a structure that can be opened and closed with a zipper.

The sandwich air mesh 230 is formed on the upper surface of the cover 200 that comes into contact with the user's skin, and is made of an air mesh material corresponding to a sandwich fabric, which not only has excellent ventilation, but also provides a soft and comfortable touch to the user. , and easy to clean.

The pressure chamber cover 240 may be provided by being attached to the inside of the sandwich air mesh 230 at the inlet side where the blow tube connection part 120 of the pad 100 is located, made of a breathable cloth. The pressure chamber cover 240 is provided to be disposed in the upper region of the pressure chamber array 142 of the pad 100 so that air introduced through the blower tube connection part 120 can be smoothly supplied to the entire surface of the pad 100 . let it be

5 is a flow velocity distribution analysis result of a ventilation pad made of a disk array of uniform size. 6 is a pressure distribution analysis result of a ventilation pad made of a disk array of a uniform size. The flow velocity distribution and pressure distribution shown in FIGS. 5 and 6 are results of analysis of plane flow characteristics in the case where air is blown at a flow rate of 5.6 m/sec to the ventilation tube connection part of the ventilation pad.

When disks of uniform size are regularly arranged to support the human body and form an air flow path, the flow is concentrated in the center and the flow velocity is uneven due to edge outflow, so the flow velocity and pressure distribution are not uniformly formed on the ventilation pad. can be seen from FIGS. 5 and 6 .

That is, in the case of a ventilation pad in which disks of uniform size are regularly arranged, the air ejected from the ventilation tube connection part is discharged through the central part of the pad, and at this time, the ventilation effect can be expected from the front of the ventilation pad due to the uneven flow velocity distribution. The area is limited to a part. The non-uniformity of the flow velocity distribution and the pressure distribution may not only reduce the ventilation effect, but also increase the blowing resistance, which may cause air loss and noise generation.

7 is a flow velocity distribution analysis result in the case of blocking the periphery and the side of the ventilation tube connection part with a wall in order to block the side discharge path of the ventilation pad. 8 is a pressure distribution analysis result in the case of blocking the periphery and the side of the ventilation tube connection part with a wall in order to block the side discharge path of the ventilation pad.

7 and 8, in the case of a ventilation pad having a disk array of uniform size and blocking the periphery and side surfaces of the blower tube connection part with a wall, the flow velocity distribution is relatively uniform, but the pressure around the blower tube connection part and the surrounding area is increases, and the blowing resistance is greatly increased. As such, when the blowing resistance increases, the burden on the blower increases, making it difficult to blow with low noise. In particular, when used indoors, such as bedding, low-noise ventilation is a very important factor.

9 is a flow velocity distribution analysis result of a ventilation pad to which a diameter-controlled disk array (flow control array structure) is applied to solve the blowing resistance problem. 10 is a pressure distribution analysis result of a ventilation pad to which a diameter-adjusted disk array is applied to solve the blowing resistance problem.

3, 9 and 10, the ventilation pad shown in FIGS. 9 and 10 is the first diameter D1 of the lateral disk 142b constituting the pressure chamber array 142 and the lateral flow control array ( The fourth diameter D4 of the fourth disks 148a and 148b of 148 is designed to be 20 mm.

In addition, the second diameter (D2) of the second disks (144a, 144b, 144c, 144d) of the ventilation array 144 in FIGS. 9 and 10 is designed to be 32 mm, and the second diameter of the central flow control array 146 is The third diameter D3 of the 3 disks 146a was designed to be 28 mm, the disk arrangement interval (disk center-to-center distance) was designed to be 43 mm, and the disk height on the base plate 10 was designed to be 15 mm.

Referring to FIGS. 9 and 10 , in the case of a ventilation pad to which a disk array whose diameter is adjusted while blocking the periphery and sides of the ventilation tube connection part with a wall, the flow velocity distribution is uniform, and at the same time, the blowing resistance around the ventilation tube connection part It can be seen that a very favorable condition for low-noise blowing is formed by lowering the pressure and decreasing the pressure.

11 is a perspective view of a blower tube connector constituting a ventilation pad system according to an embodiment of the present invention. 1, 2 and 11, the blower tube connector 500 is a connector body 510 having an approximately 'L'-shaped cross-sectional shape, and the connector body 510 for connecting the blower tube 400. It may include a blow tube coupling part 520 provided at one end, and a mat coupling part 530 provided at the other end of the connector body 510 for insertion into the blow tube coupling part 120 of the mat 100 .

The connector body 510 may be connected between the blower tube 400 and the blower tube connection part 120 . An air passage through which air flows from the blower tube 400 to the blower tube connection part 120 may be formed in the connector body 510 . The air passage of the connector body 510 is provided in the air inlet passage 522 through which air is introduced from the ventilation tube 400 provided in the blow tube coupling part 520 , and the mat coupling part 530 is provided in the blow tube connection part 120 . ) communicates with the air supply passage 532 through which air is supplied.

12 is an exploded perspective view of the blower body constituting the ventilation pad system according to the embodiment of the present invention. 13 is an exploded side view of the blower body constituting the ventilation pad system according to the embodiment of the present invention.

12 and 13, the blower body 300 includes a case 310, a blower mount 320, a centrifugal blower 330, a heater module 340, a temperature controller 350, a wind speed controller 360, It may include a controller cover 370 and an exhaust port 380 .

The case 310 may include a first case 312 and a second case 314 . An air inlet 312a for introducing air into the blower mount 320 and the centrifugal blower 330 may be formed in the first case 312 .

A blower mount 320 of a flexible material having a vibration absorption function, a centrifugal blower 330 mounted on the blower mount 320, a heater module 340 for heating air, etc. may be coupled to the first case 312 . there is.

The blower mount 320 has a blower mounting groove 324 in which the centrifugal blower 330 is mounted, and an air flow for supplying air discharged from the air outlet 332 of the centrifugal blower 330 toward the heater module 340 . A passageway 322 may be formed.

The second case 314 has a temperature controller 350 for controlling the air temperature, a wind speed controller 360 for controlling the wind speed, a controller cover 370 that covers the temperature controller 350 and the wind speed controller 360, and an exhaust port ( 380) may be combined. The temperature controller 350 and the wind speed controller 360 may be provided with terminals 352 and 362 for power input exposed to the outside of the case 310 .

An exhaust port mounting groove 314a for mounting the exhaust port 380 may be provided in the second case 314 . An exhaust passage 382 for supplying air heated by the heater module 340 to the blower tube 400 may be formed in the exhaust port 380 . The first case 312 and the second case 314 in which these various parts are assembled are assembled to form the blower body 300 . Although not shown, the blower body 300 may further include additional components such as a cooling module for cooling the air supplied to the ventilation pad 20 .

14 is an exemplary view of an acoustic wedge panel of an intake anechoic chamber and an exhaust anechoic chamber constituting the ventilation pad system according to an embodiment of the present invention. In order to use the ventilation pad system 10 together with bedding, noise generated from the blower body 300 should be minimized. To this end, anechoic chambers 316 and 318 may be formed inside the blower body 300 .

13 and 14 , an intake anechoic chamber 316 for reducing intake noise and an exhaust anechoic chamber 318 for reducing exhaust noise may be provided inside the blower body 300 . The intake anechoic chamber 316 may be provided in an intake area adjacent to the air inlet 312a. The exhaust anechoic chamber 318 may be provided in an exhaust area adjacent to the exhaust port 380 .

An anechoic wedge panel may be attached to inner walls of the intake anechoic chamber 316 and the exhaust anechoic chamber 318 in the case 310 for accommodating the components. The acoustic wedge panel may be formed in a structure in which acoustic wedges 316b and 318b are arranged to protrude from the panels 316a and 318b to reduce noise.

Although specific embodiments according to the present invention have been described so far, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims as well as equivalents thereof. As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which are various modifications and variations from these descriptions by those skilled in the art to which the present invention pertains. Transformation is possible. Accordingly, the spirit of the present invention should be understood only by the claims set forth below, and all equivalents or equivalent modifications thereof will fall within the scope of the spirit of the present invention.

10: ventilation pad system
20: ventilation pad
30: blower
100: pad
110: base plate
120: blow tube connection part
122: insertion hole
130: flow guide wall
132: first flow guide wall
134: second flow guide wall
140: disk array
142: pressure chamber array
142a, 142b: first disk
144: ventilation array
144a, 144b, 144c, 144d: second disc
146: central flow control array
146a: third disk
148: lateral flow control array
148a, 148b: fourth disc
200: cover
210: high friction base
220: zipper opening and closing part
230: sandwich air mesh
240: front power chamber cover
300: blower body
310: case
312: first case
312a: air inlet
314: second case
314a: exhaust port mounting groove
316: intake anechoic chamber
316a: panel
316b: sound wedge
318: exhaust anechoic chamber
318a: panel
318b: sound wedge
320: blower mount
322: air flow passage
324: blower mounting groove
330: centrifugal blower
340: heater module
350: temperature controller
360: wind speed controller
370: controller cover
380: exhaust port
382: exhaust passage
400: blow tube
500: blower tube connector
510: connector body
520: blow tube coupling part
522: air inlet passage
530: mat coupling portion
532: air supply passage

Claims (11)

pad; and
a cover for accommodating the pad;
The pad is:
base plate;
a blower tube connecting portion formed in a central portion of one corner of the base plate;
a flow guide wall protruding from an upper surface of the base plate along an edge of the base plate around the blower tube connection part; and
a disk array including a plurality of disks arranged in an area surrounded by the flow guide wall and protruding from the upper surface of the base plate; and
The disk array is arranged such that the plurality of disks have different diameters based on the location of the blower tube connection part and the location of the flow guide wall,
The disk array comprises:
a pressure chamber array including first disks arranged in a front area adjacent to the blower tube connection part;
a ventilation array including second disks arranged in a rear region of the pressure chamber array based on a flow direction of the air;
a central flow control array including third disks arranged along the flow direction of the air in a central portion of the disk array from the pressure chamber array to the rear edge of the base plate; and
a lateral flow control array including fourth disks arranged along a lateral region between a central portion and a side edge of the disk array from the pressure chamber array to the rear edge of the base plate; and
an average diameter of the first disks, an average diameter of the third disks, and an average diameter of the fourth disks are smaller than an average disk diameter of the disk array;
and an average diameter of the second disks is greater than the average diameter of the disk array. According to claim 1,
The flow guide wall surrounds the ventilating tube connection part in a 'C' shape and is formed such that the rear edge region of the base plate is opened. 3. The method of claim 2,
The flow guide wall comprises:
a first flow guide wall protruding from the upper surface of the base plate along two opposite side edges of the base plate; and
A ventilation pad comprising a; a second flow guide wall protruding from the upper surface of the base plate along the front edge of the base plate in which the ventilation tube connection part is formed. delete According to claim 1,
The cover is:
a high friction base supporting the base plate by frictional force;
a zipper opening and closing part provided in a structure that can be opened and closed with a zipper along some corners of the cover;
a sandwich air mesh formed on the upper surface of the cover in contact with the user's skin and made of an air mesh material that is a sandwich fabric to provide breathability; and
A ventilation pad comprising a; a pressure chamber cover attached to the inside of the sandwich air mesh with a breathable fabric material and provided on the inlet side where the ventilation tube connection part is located. According to claim 1,
wherein the base plate, the flow guide wall and the disk array are formed of a highly elastic flexible material. The ventilation pad according to any one of claims 1 to 3, 5 and 6; and
The ventilation pad system comprising a; a blower for supplying air to the ventilation pad. 8. The method of claim 7,
The blower is:
a blower body for supplying air toward the ventilation pad and controlling a temperature and humidity of the air supplied to the ventilation pad;
a blower tube coupled to the blower body to deliver air to the ventilation pad; and
Ventilation pad system comprising a; a blower tube connector coupled between the blower tube connecting portion and the blower tube. 9. The method of claim 8,
The blower tube connector is:
a connector body connected between the blower tube and the blower tube connection part, having a 'L'-shaped cross-sectional shape, and having an air passage for air transmission from the blower tube to the blower tube connection part;
a blower tube coupling part provided at one end of the connector body for connecting the blower tube, and having an air inlet passage through which air is introduced from the blower tube and communicates with the air passage; and
Ventilation pad system comprising a; mat coupling part provided at the other end of the connector body for insertion into the blow tube connection part, air is supplied to the blow tube connection part, and having an air supply passage communicating with the air passage. 9. The method of claim 8,
The blower body comprises:
case;
a blower mount provided in the case, made of a flexible material having a vibration absorption function, and having a blower mounting groove and an air flow passage;
a centrifugal blower mounted on the blower mounting groove and supplying air through the air flow passage;
a heater module provided in the case and heating the air supplied by the centrifugal blower;
a temperature controller provided in the case and configured to control the heater module to adjust the air temperature;
a wind speed controller provided in the case and controlling the centrifugal blower to adjust the wind speed; and
Ventilation pad system including a; provided in the case, the exhaust port for supplying the air heated by the heater module to the blower tube is formed. 11. The method of claim 10,
The blower body comprises:
an intake anechoic chamber provided in an intake area adjacent to an air inlet through which air is introduced into the case to reduce intake noise; and
Further comprising; an exhaust anechoic chamber provided in an exhaust region adjacent to the exhaust port in the case to reduce exhaust noise;
An acoustic wedge panel for noise reduction is attached to the inner wall surfaces of the intake anechoic chamber and the exhaust anechoic chamber,
The acoustic wedge panel is a ventilation pad system comprising a panel and acoustic wedges arranged to protrude from the panel.

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