JP2019118627A - Mattress ventilation system and air flow control method - Google Patents

Abstract

To provide a mattress ventilation system for using heat and moisture which a human body itself generates according to a sleep state for properly controlling ventilation in a bedding so that the bedding state is suitable for sleep.SOLUTION: There is provided a mattress ventilation system for controlling a mattress state by air generated in a mattress, comprising: a sleep information acquisition part for acquiring information of a sleep depth of a user of the mattress; and an air flow control part for controlling an air flow in the mattress, the air flow control part increases the air flow in a period when the sleep depth is deep, relative to a period when the sleep depth is shallow.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a mattress ventilation system and a method of controlling air volume.

  The seven major elements required for an ideal mattress are (1) adequate heat retention (easy to adjust the warmth) and (2) adequate moisture permeability (not sweaty even if sweated) ), (3) having adequate resilience (turning property is good), (4) having good body pressure dispersability (having adequate softness), and (5) having few allergens (mite Etc.), (6) easy to clean (it is strong in water and fast to dry), and (7) environmentally friendly (it is easy to recycle).

  As a cushioning material for mattresses that can satisfy the seven major elements in a high dimension, for example, a filament three-dimensional assembly described in Patent Document 1 is known. According to Patent Document 1, after extruding polyethylene resin in a molten state downward from a plurality of horizontally arranged nozzles, a molten filament having a diameter of about 1 mm is dropped into cooling water and melted by the buoyancy of water. It is disclosed that a very air-permeable filament three-dimensional combination having a porosity of more than 90% is produced by forming a loop of filaments and simultaneously three-dimensionally fusion bonding a plurality of molten filaments. There is.

  A filament three-dimensional assembly (i.e. cushioning material for mattresses) is used as a mattress, with a cushioning material cover (or mattress pad) having optimum heat retention characteristics depending on the season on its upper surface. However, even with a mattress using a well-ventilated filament three-dimensional assembly as a cushion, the user feels humid and hot when the temperature and humidity in the bedroom are high, and he wakes up at night (midnight awakening) There was such a problem.

  This problem is due to a physiological phenomenon in which a large amount of sweating is performed to lower core body temperature when entering deep sleep (non-REM sleep). In particular, the amount of sweating is the largest at the time of the transition to the first non-REM sleep immediately after entering sleep, and high-quality sleep is obtained as the deep body temperature drops sufficiently and the depth at the time of sleep becomes deeper. When it becomes difficult to evaporate sweat, you will not be able to go to a deep sleep or you will wake up halfway.

  As a method of solving this problem, by using the quilt and mattress (mattress pad) using a hygroscopic intermediate material such as cotton, water vapor generated by perspiration is absorbed by the quilt and mattress intermediate material, and it is in the bed. It is conceivable to prevent the humidity from becoming excessively high. However, in this case, in order to restore the hygroscopicity of the intermediate material, there has been a disadvantage that it must be frequently sun-dried, and there is a disadvantage that mites are easily propagated.

  Further, as another method, for example, Patent Document 2 describes a method in which the temperature in the bedroom is lowered by the air conditioner so as not to sense the steamy heat only in the time zone in which the amount of sweating immediately after sleep onset is large. As another method, for example, Patent Document 3 provides a sensor for detecting sweating in clothes, determines sleepiness by measuring the amount of sweating, and raises the room temperature after sleepiness to prevent coldness It is described to control. Further, as another method, for example, in Patent Document 4, the temperature of the bed is low when the sleep depth is deep and the sleep depth is shallow when the sleep depth is deep in order to determine the sleep state using a body motion sensor and improve the asleep and sleep well. It is described that control so that the temperature of a bed becomes high.

International Publication No. 2017/122370 JP-A-7-71804 JP, 2001-78966, A JP, 2017-211, A

  However, in the method described in Patent Document 2, it is necessary to create in advance a temperature control program of the air conditioner, and the timing of the actual sleep depth change deviates from the created program (the scheduled sleep depth change timing) Problems that can not be obtained in the case where there is a problem, and problems such as not being able to provide a comfortable temperature and humidity environment to all people when multiple people with different timings of sleep depth change go to bed in one and the same room There is.

  The method described in Patent Document 3 has a problem that it is troublesome to attach a perspiration sensor to clothes. Furthermore, there is a problem that, in the process of depth of sleep deepening immediately after sleep onset, when a large amount of sweating occurs, the user feels steamy and hot.

  In the method described in Patent Document 4, when the sleep depth is shallow, the temperature in the duvet is controlled to be high. Therefore, in the early stages of sleep depth deepening immediately after sleep onset (during sleep depth shallow), there is a problem that you feel a steamy heat when a large amount of sweating occurs, or a condition that does not require temperature adjustment in the bed ( There is a problem that when the air flow stops when the temperature and humidity in the duvet are within a predetermined range), the moisture adsorbed to the clothes and bedding does not diffuse due to perspiration, and the user feels steamy and hot.

  Furthermore, what is described in Patent Documents 2 and 3 is to adjust the temperature and humidity in the room to be suitable for sleep, and there is no idea that the condition of the bedding itself covering the human body is adjusted. On the other hand, those described in Patent Document 4 are different from those described in Patent Documents 2 and 3 in that the temperature and humidity of the bedding itself are adjusted to be suitable for the sleeping state. However, the one described in Patent Document 4 also forcibly sets the temperature and humidity so that the external environment closest to the human body is suitable for the sleep state, and the heat generated by the human body according to the sleep state, There was no idea to control the ventilation in the bedding so that the condition of the bedding would be suitable for sleep using moisture.

  In general bedding (futons, mattresses or mattresses), the ventilation property is lowered (the air permeability is not good) in order to secure a certain degree of heat retention, so it is far from the place near the air outlet and the air outlet. At the location, temperature and humidity differences tend to occur, and it has been difficult to uniformly adjust the temperature and humidity in the bed. On the other hand, there was a problem that the warmth was lost if it was going to raise airiness, and when the wind hit the body directly, it felt dull when getting up. Furthermore, in the process of deepening sleep depth, that is, in the process of lowering core body temperature, the method of simply lowering the temperature in the bed weakens the physiological function of the person because the temperature drops even without sweating. There was also a possibility of Moreover, in the system which produces a wind in a mattress, the idea of performing air volume control in consideration of both temperature and humidity in addition to the sleep depth is not in the past, and there is room for improvement especially about air volume control.

  SUMMARY OF THE INVENTION In view of the above problems, according to the present invention, there is provided mattress ventilation capable of appropriately controlling ventilation in bedding so that the condition of the bedding is suitable for sleep using heat and moisture generated according to the sleeping condition. The purpose is to provide a system and a method of controlling air volume.

  A mattress ventilation system according to the present invention is a mattress ventilation system that controls the condition of the mattress by wind generated in the mattress, and includes a sleep information acquisition unit that acquires information of a sleep depth of a user of the mattress; An air volume control unit for controlling an air volume in a mattress is provided, and the air volume control unit is configured to increase the air volume in a period in which the sleep depth is deep compared to a period in which the sleep depth is shallow.

  More specifically, as the above configuration, a mattress information acquisition unit for acquiring at least humidity information of the mattress reflecting the humidity around the user is provided, and the air volume control unit is based on at least the humidity information. The air volume may be controlled. More specifically, as the above configuration, the mattress information acquisition unit also acquires temperature information of the mattress, and the air volume control unit controls the air volume based on the humidity information and the temperature information. It may be Further, more specifically, as the above configuration, the mattress information acquisition unit uses at least one of the humidity information and the temperature information by using a sensor provided in the vicinity of the mattress upper surface near the body surface of the user. It is good also as composition to acquire.

  More specifically as the above configuration, the air volume control unit controls the air volume based on a calculation result using a calculation formula using the temperature information and the humidity information as parameters, and the calculation formula The air volume increases as the temperature increases, and the air volume increases as the humidity increases, and is also updated when the sleep depth satisfies a predetermined condition. Good. According to this configuration, it is easy to realize the air volume control in which the temperature and the humidity are considered in a well-balanced manner.

  More specifically, the air volume control unit recognizes each timing near each peak of the sleep depth, and updates the calculation formula each time the timing arrives. Good. According to this configuration, it is easier to control the air volume more ideally using a calculation formula adapted to each of the high sweat period and the low sweat period.

  More specifically, as the above configuration, the sleep information acquisition unit includes a body movement detection sensor that detects a body movement of the user, and the information of the sleep depth is detected based on the detection result of the body movement detection sensor. It is good also as composition to acquire.

  More specifically, the above configuration further includes a wind generating unit for generating a wind in the mattress, the wind generating unit including a wind guide tube having a plurality of vent holes while extending substantially in the height direction. The wind is generated by the delivery of air into the wind tube or the suction of air from the wind guide tube, and the air flow rate of the air flow rate in the air flow rate is greater in the air flow direction than in the leg air flow direction. It may be configured to be increased. According to this configuration, the air flow rate is larger on the side corresponding to the trunk corresponding to the portion expected to have a relatively larger amount of sweating than the leg corresponding to the side corresponding to the portion corresponding to the leg expected to have a relatively small amount of sweat Good ventilation is possible.

  More specifically, as the above configuration, the vent holes are arranged along the extending direction of the air guide tube, and the vent holes are closer to the trunk corresponding portion than the portion corresponding to the leg corresponding portion. The corresponding portions may be arranged so as to be narrower.

  More specifically, as the above configuration, the mattress information acquisition unit includes a plurality of temperature and humidity sensors, and the highest temperature and humidity information among the temperature and humidity detected by each of the plurality of temperature and humidity sensors is It is good also as composition acquired as information used for control of the above-mentioned air volume. According to this configuration, even if the user (sleeping person) moves by turning over, the air volume can be controlled using the temperature information and humidity information of the temperature / humidity sensor that is most strongly affected by the user's temperature or sweating. It becomes possible to control the air volume at a temperature and humidity closer to the user's sensation.

  Further, more specifically as the above configuration, the operation of causing the wind in the wind generation unit may be performed intermittently. According to this configuration, since it is possible to temporarily create a quick wind flow, it is possible to enhance the diffusion effect of the moisture held in the clothes and the cushion material cover. In particular, although it becomes difficult to diffuse the water once held in the clothes and cushion material cover, the diffusion of water vapor by the quick wind for a short time does not excessively increase the air volume per unit time. Since the temperature is increased, sweat can be diffused quickly, and the temperature and humidity in the bed can be prevented from being excessively increased, and the humidity in the bed can be kept comfortable.

  Further, more specifically, the mattress information acquisition unit may acquire the temperature information and the humidity information when the operation for generating the wind is stopped. According to this configuration, the influence of the wind on the detection accuracy of the temperature and the humidity can be suppressed, and it is easy to acquire the information of the temperature and the humidity with the highest accuracy.

More specifically, as the above configuration, a mattress ventilation system having the mattress, wherein the mattress includes a cushion having ventilation and a cushion cover provided on at least the upper surface of the cushion, The material cover has a permeability of 10 cm ³ / cm ² · s or more and 200 cm ³ / cm ² · s or less, which is measured by the air permeability measurement method according to JIS L 1096-1999 8.27.1 A method. May be configured as follows. According to this configuration, the air velocity is alleviated by the cushion material cover having appropriate air permeability without impairing the diffusibility of water vapor, and the temperature and humidity felt at a region with high wind velocity on the skin surface and the temperature sensed at a region with low air velocity The difference with the sense of humidity can be reduced.

  More specifically, as the above configuration, the mattress supporting the user on the upper surface has a cushioning material having ventilation and a cushioning material cover covering the cushioning material, and at least the upper surface of the cushioning material cover A part of the air permeability may be higher than the air permeability of the side surface of the cushion material cover. According to this configuration, since the air permeability of the upper surface of the cushioning material cover is high, the water vapor due to perspiration of the user is diffused quickly inside the mattress, and at the same time, the air volume near the upper surface of the cushioning material cover supporting the user You can send the wind efficiently without excessively increasing As a result, the air (air flow) guided near the upper surface of the cushion cover in contact with the user diffuses the water vapor staying in the cushion cover and is discharged to the outside of the mattress.

  The method of controlling air volume according to the present invention is a method of controlling air volume of a wind generating device that generates wind in a mattress, and the sleep information acquiring step of acquiring information of the sleep depth of the user of the mattress; The control method may include a temperature and humidity information acquisition step of acquiring information on a mattress temperature and humidity, and a control step of controlling the air volume based on the sleep depth, the temperature, and the humidity.

  Further, the mattress ventilation system according to the present invention includes: a mattress for supporting a user on the upper surface; a temperature and humidity information acquiring unit for acquiring information on temperature and humidity of the mattress; and a wind generating unit for generating wind in the mattress An air volume control unit for controlling an air volume of the wind generating unit; the mattress includes a cushioning material having ventilation and a cushioning material cover for covering the cushioning material; air permeability of an upper surface of the cushioning material cover But the air permeability of the side is higher.

  According to this configuration, since the air permeability of the upper surface of the cushioning material cover is high, the water vapor due to perspiration of the user is diffused quickly inside the mattress, and at the same time, the air volume near the upper surface of the cushioning material cover supporting the user You can send the wind efficiently without excessively increasing As a result, the air (air flow) guided near the upper surface of the cushion cover in contact with the user diffuses the water vapor staying in the cushion cover and is discharged to the outside of the mattress.

  According to the mattress ventilation system and air volume control method according to the present invention, the ventilation of the bedding is appropriately controlled so that the condition of the bedding is suitable for sleep using heat and moisture generated by the human body according to the sleeping condition. It is possible to

1 is a block diagram of a mattress ventilation system 1 according to a first embodiment. FIG. 1 is a perspective view of a mattress ventilation system 1; FIG. 1 is a front view of a mattress ventilation system 1; FIG. 1 is a top view of a mattress ventilation system 1; It is a perspective view of the air guide tube 7 shown in FIG. It is a graph regarding the change condition of each item at the time of use of the mattress ventilation system 1. FIG. 5 is a flowchart related to the operation of the mattress ventilation system 1; It is a block diagram of the mattress ventilation system 101 which concerns on 2nd Embodiment. 1 is a top view of a mattress ventilation system 101. FIG. It is a block diagram of a mattress ventilation system 201 concerning a 3rd embodiment. 1 is a front view of a mattress ventilation system 201. FIG. FIG. 7 is a perspective view of another form of mattress ventilation system 201.

  Embodiments of the present invention will be described below with reference to the drawings, taking each of the first to third embodiments as an example. In addition, each direction (direction orthogonal to each other) of the upper and lower sides, right and left, and front and back in the following description is as showing to each figure.

1. First Embodiment First, a first embodiment will be described. FIG. 1 is a block diagram of a mattress ventilation system 1 according to a first embodiment. FIG. 2 is a perspective view of the mattress ventilation system 1. FIG. 3 is a front view of the mattress ventilation system 1. FIG. 4 is a top view of the mattress ventilation system 1. FIG. 5 is a perspective view of the air guide tube 7 shown in FIG. In addition, in FIG. 3, in order to make it easy to understand the usage form of this system 1, the user in use of this system 1, a pillow, and a comforter are shown by the dotted line.

  As shown in FIG. 1, the mattress ventilation system 1 includes a bed unit 10, a wind generation unit 20, and an information processing unit 30. Further, as shown in FIGS. 1 to 4, the bed unit 10 includes a bed 2, a lower mattress 3, an upper mattress 4, three body motion detection sensors 5 a to 5 c, and three temperature and humidity detection sensors 6 a to 6 c. Including.

  The bed 2 is a flat bed supporting the mattresses 3 and 4 from the lower side, and a headboard 2a is provided on the head side of the sleeper. The lower mattress 3 and the upper mattress 4 each have a cushioning material and a cushioning material cover that covers the entire outer peripheral surface including the upper surface of the cushioning material. A lower mattress 3 is installed on the upper surface of the bed 2, and an upper mattress 4 is installed on the upper surface of the lower mattress 3. Each of the mattresses 3 and 4 is a mattress whose thickness direction is the vertical direction, and the longitudinal direction is the longitudinal direction (which corresponds to the height direction of the user who sleeps thereon). When the mattress ventilation system 1 is used, as shown in FIG. 3, the user will lie on the upper mattress 4 with the head turned to the front and the foot to the back.

  As a cushion material used for each mattress 3 and 4, a member excellent in ventilation is preferable. For example, even in a state where the cushion material is placed in front of a fan, the wind passing through the cushion material is about to fly balloons It is preferable to have ventilation so that the flow rate can be maintained. As the cushioning material of the present embodiment, a filament 3D having a porosity of 95%, in which a plurality of molten filaments made of a thermoplastic resin mainly composed of polyethylene and having a diameter of about 1 mm are three-dimensionally fusion bonded I am using a conjugate.

The cushion material cover used for each mattress 3 and 4 is preferably a fabric having air permeability, which is determined by an appropriate air permeability measurement method according to JIS L 1096-1999 8.27.1 A method (Frazil method). The air permeability to be measured is preferably 10 cm ³ / cm ² · s or more and 200 cm ³ / cm ² · s or less, and is 20 cm ³ / cm ² · s or more and 100 cm ³ / cm ² · s It is more preferable that it is the following. In addition, the specific value of the air permeability in the following description is also measured by an appropriate air permeability measuring method according to JIS L 1096-1999 8.27.1 A method (Frazil method) unless otherwise noted. Indicates the value of air permeability. If the air permeability is too low, the diffusion of water vapor in the cushion material cover generated by perspiration decreases, and if the air permeability is too high, the flow of the wind becomes difficult to be alleviated, and the wind generated by the wind generating unit 20 The difference between the temperature felt at a region with high wind speed on the skin surface and the temperature felt at a region with low wind speed is large, such as feeling cold (a decrease in heat retention) at a site directly at bedtime, causing unevenness in heat retention. . In that respect, if a cushion material cover having such an appropriate air permeability is used, the wind speed can be alleviated without impairing the diffusion of water vapor, and a sense of temperature and humidity felt at a site with high wind speed on the skin surface You can reduce the difference between the sense of temperature and humidity you feel at.

  The three body motion detection sensors 5a to 5c are acceleration sensors, and are disposed side by side between the cushioning material and the cushioning material cover on the upper surface side of the upper mattress 4, and the user (sleeping person) turns over, etc. Detect body movement. In this embodiment, although an acceleration sensor is used as a body movement detection sensor, you may use the other sensor which can detect body movement. As will be described later, the detection result of the body movement is used to acquire information on the sleep depth of the user. Therefore, instead of the body movement detection sensor, another means may be employed which enables acquisition of the user's sleep depth. For example, means for detecting a user's movement using an infrared camera may be employed, and information on the sleep depth may be acquired based on the frequency of the movement. Alternatively, means for measuring the user's heart rate using a heart rate sensor may be employed, and information on the sleep depth may be obtained based on the heart rate.

  The three temperature / humidity detection sensors 6 a to 6 c are sensors for detecting the temperature and the humidity, and detect the temperature and the humidity in the upper mattress 4. In the present embodiment, the temperature and humidity detection sensors 6 a to 6 c are disposed side by side between the cushion material and the cushion material cover on the upper surface side of the upper mattress 4. As described above, the temperature / humidity detection sensors 6a to 6c are disposed at positions that are most susceptible to the influence so as to detect with high sensitivity the changes in temperature and humidity caused by the perspiration of the user (sleeping person) and body temperature. There is. As a result, even if the user moves by turning over, the air volume can be controlled using the temperature information and humidity information of the temperature and humidity detection sensor that is most strongly affected by the user's body temperature and sweating, the user's experience Air flow control at temperatures and humidity close to

  The wind generating unit 20 includes a wind guide tube 7, a fan 8 and a fan driving unit 9. The air guide tube 7 is a substantially cylindrical member that guides the wind from the inside to the outside of the upper mattress 4 and from the outside to the inside, and is provided between the lower mattress 3 and the upper mattress 4.

  As shown in FIG. 5, the air guide tube 7 is a hollow tube having a head air vent 7a, a connection opening 7b, and intermediate air vents 7c to 7j, and is formed of a flexible silicone resin. The air guide tube 7 is disposed so as to extend in the front-rear direction, has a head vent 7a at the front end, and has a connection opening 7b at the rear end. The connection opening 7 b is connected to the fan 8 installed on the rear side of the rear end central portion of the upper mattress 4. The wind generating unit 20 can generate a wind (air flow) in the upper mattress 4 by the delivery of air into the air guide tube 7 using the fan 8 or the suction of air from the inside of the air guide tube 7. .

  The air guide tube 7 extends forward from a position connected to the fan 8 and passes in the order of the lower side of the leg corresponding portion of the upper mattress 4 and the lower side of the body corresponding portion in the vicinity of the head corresponding portion. It extends to The leg corresponding portion is a portion of the upper mattress 4 corresponding generally to the leg of the user lying on the upper mattress 4, and the body corresponding portion corresponds to the upper mattress corresponding generally to the torso of the user. 4 and the head corresponding part is a part of the upper mattress 4 corresponding generally to the head of the user.

  The head ventilation hole 7a is opened forward and plays a role of mainly generating wind in the vicinity of the head corresponding portion. Each of the middle ventilation holes 7c to 7j is a hole of the same size, and is provided so as to be lined back and forth on the side portion of the air guide tube 7. Each of the middle ventilation holes 7c to 7j is opened upward so that the upper mattress 4 can efficiently generate a wind. Among the intermediate ventilation holes 7c to 7j, the intermediate ventilation holes 7c to 7f are disposed in a portion corresponding to the trunk corresponding portion, and the intermediate ventilation holes 7h to 7j are disposed in a portion corresponding to the leg corresponding portion . The intermediate ventilation holes 7c to 7f mainly play a role of generating a wind at the trunk corresponding portion, and the intermediate ventilation holes 7h to 7j mainly play a role of generating a wind at the leg corresponding portion.

  The intermediate ventilation holes 7h to 7j are formed such that the air flow rate is larger in the body corresponding portion than in the leg corresponding portion. More specifically, the arrangement interval of the intermediate vents 7c to 7f is narrower than the arrangement interval of the intermediate vents 7h to 7j, and the body corresponding portion is per unit length in the air guide tube 7. The number of intermediate ventilation holes is increasing. As a result, when the fan 8 generates a wind, the air flow rate is larger in the body corresponding portion than in the leg corresponding portion. The mechanism for increasing the air volume at the trunk corresponding portion more than the leg corresponding portion is not limited to the above. For example, in the case where the arrangement intervals of the intermediate ventilation holes 7c to 7j are constant, the intermediate ventilation holes 7c A mechanism etc. which make size of -7f larger than middle ventilation holes 7h-7j may be adopted.

  As described above, in the present embodiment, the amount of air flow on the side corresponding to the trunk corresponding to the portion expected to have a relatively large amount of sweating by the user is larger than the side corresponding to the leg corresponding to the portion assumed to have a relatively small amount of sweat , Efficient ventilation is realized. In the present embodiment, one straight hollow tube is used as the air guide tube 7. However, a hollow tube branched in the middle and a plurality of hollow tubes fixed in the horizontal direction are used. You may use.

  The fan 8 is a blower provided with a rotor having a diameter of 8 cm, and is connected to the connection opening 7b. The fan drive unit 9 has a motor for driving the fan 8 and rotates the fan 8 at a rotational speed (rotational speed) determined by the air volume control unit 16. As a result, the wind generating unit 20 generates a wind of an amount corresponding to the number of rotations and sends the air in the bedroom (the room in which the bed unit 10 is installed) corresponding to the outside of the upper mattress 4 into the upper mattress 4 The air in the upper mattress 4 can be exhausted into the bedroom. The air in the upper mattress 4 is ventilated with the external air, regardless of whether the air is sent outside the upper mattress 4 or the air inside the upper mattress 4 is discharged to the outside.

  The information processing unit 30 includes the sleep information acquisition unit 14, the temperature and humidity information acquisition unit 15, and the air volume control unit 16, and generates wind based on the detection results of the body movement detection sensors 5a to 5c and the temperature and humidity detection sensors 6a to 6c. It plays a role of controlling the intensity (wind volume) of the wind generated by the unit 20. The information processing unit 30 includes a CPU (central processing unit), a RAM (random access memory), and a ROM (read only memory), and operates according to predetermined software stored in the ROM to perform the above-described functions. The units (14-16) are realized. However, the specific form of each of the functional units (14 to 16) is not particularly limited, and all or part of the functional units may be realized by a dedicated circuit.

  The sleep information acquisition unit 14 calculates the body movement frequency (the number of appearances per unit time of body movement to be equal to or higher than the predetermined acceleration) from the acceleration information sent from the body movement detecting sensors 5a to 5c at predetermined time intervals. Information on sleep depth for air volume control. As for the sleep depth, it is determined that the sleep depth is shallower as the body movement frequency is larger, and the sleep depth is determined as the body movement frequency is smaller. In the present embodiment, as an example, sleep depth information can be obtained by estimating the five sleep depths from the body movement frequency divided into five stages.

  The temperature and humidity information acquisition unit 15 identifies the highest temperature information and humidity information from among the temperature information and the humidity information continuously sent from the three temperature and humidity detection sensors 6a to 6c, and this identification is performed. The acquired information is acquired as temperature information and humidity information for air volume control. The temperature information and humidity information for controlling the air volume thus obtained can be said to be information detected by one of the three temperature / humidity detection sensors 6a to 6c that is most strongly affected by the body temperature and sweating of the sleeping person. . Therefore, in the present embodiment, it is possible to control the air volume based on the information of the temperature and the humidity closer to the sleeping sensation of the sleeping person. The temperature information and the humidity information acquired by the temperature and humidity information acquisition unit 15 are sent to the air volume control unit 16.

  The air volume control unit 16 adjusts the number of rotations of the fan 8 based on the respective information received from the sleep information acquisition unit 14 and the temperature and humidity information acquisition unit 15, and thereby the wind intensity (air volume) generated by the wind generation unit 20. Control. The operation of the air volume control unit 16 will be described below with reference to FIG.

  FIG. 6 is a graph showing an example of the change in each item when the mattress ventilation system 1 is used. In FIG. 6, the horizontal axis indicates the elapsed time since the start of use of the mattress ventilation system 1, and the vertical axis in the upper graph indicates the user's sleep depth, the user's sweat rate, and the fan 8 in order. The number of rotations and the core temperature of the user are shown, respectively.

  Generally, with regard to the sleep depth of the sleeper, the existence of a sleep rhythm is known. In this sleep rhythm, as illustrated in the graph of FIG. 6, the sleep cycle until the sleep depth changes from the shallow state to the deep state and then changes to the shallow state again is repeated. With regard to the amount of sweating, when the depth of sleep changes from shallow to deep, the amount of sweat increases relatively, and when the depth of sleep changes from deep to shallow, the amount of sweating decreases relatively It is in. In addition, the deep body temperature of the sleeper falls relatively largely at the time of the first deep sleep (descent phase), and the fluctuation becomes relatively small when it enters the subsequent stable phase.

  The timing t1 shown in FIG. 6 is a timing near the time when the sleep depth first becomes deepest (the peak time P1 on the first deep side shown in FIG. 6), and in the present embodiment, the peak time P1. It is the timing when the sleep depth has begun to become shallow. A timing t2 shown in FIG. 6 is a timing near the time when the sleep depth gradually becomes shallow and becomes shallowest from the timing t1 (the peak time P2 of the first shallow side shown in FIG. 6), and in the present embodiment The peak timing P2 indicates the timing when the sleep depth starts to deepen. The timing t3 shown in FIG. 6 is a timing near the timing t2 when the sleep depth gradually deepens and becomes deepest (the peak time P3 on the second deep side shown in FIG. 6), and in the present embodiment, The peak timing P3 indicates the timing when the sleep depth starts to be shallowed. The timing t4 shown in FIG. 6 is a timing near the time when the sleep depth gradually becomes shallow from the timing t3 and becomes shallowest (the peak time P4 on the second shallow side shown in FIG. 6), and in the present embodiment The peak timing P4 indicates the timing when the sleep depth starts to deepen. The timing t5 shown in FIG. 6 is a timing near the time when the sleep depth gradually deepens and becomes deepest from the timing t4 (the peak time P5 on the third deep side shown in FIG. 6), and in this embodiment, The peak timing P5 indicates the timing when the sleep depth starts to be shallowed.

  The air volume control unit 16 controls the air volume in consideration of the sleep rhythm and the amount of sweating described above. Hereinafter, this point will be described more specifically.

  The air volume control unit 16 recognizes each of the timings t1 to t5 according to a predetermined rule. That is, the air flow rate control unit 16 recognizes as the timing t1 the timing when the sleep depth falls below the previous level (the sleep depth becomes shallow) for the first time after the start of the information acquisition of the sleep depth. In addition, the air flow control unit 16 recognizes, as timing t2, a timing at which the sleep depth exceeds the previous level for the first time after timing t1 (the sleep depth becomes deeper). In addition, the air volume control unit 16 recognizes a timing at which the sleep depth falls below the previous level for the first time after timing t2 as timing t3. In addition, the air volume control unit 16 recognizes a timing at which the sleep depth exceeds the previous level for the first time after the timing t3 as a timing t4. In addition, the air volume control unit 16 recognizes, as timing t5, a timing at which the sleep depth falls below the previous level for the first time after timing t4.

  However, the rule for recognizing each of the above timings is an example, and the timing t1 may be recognized according to other rules so as to be timing near the peak time P1. Similarly, the timing t2 is a timing near the peak timing P3 so that the timing t2 is a timing near the peak timing P3 so that the timing t2 is a timing near the peak timing P3. It may be recognized in accordance with other rules so that t5 is a timing near the peak time P5. Here, it is desirable that the range of “nearby” is a range in which the difference from the corresponding peak time is approximately 1⁄4 or less of the cycle of the sleep cycle (about 90 minutes). In addition, generally it is known that a sleep cycle is about 90 minutes on average, but since there are individual differences, the sleep cycle of each person is continuously measured to match the sleep cycle of each person It is preferable to correct.

  In addition, a period from sleep onset to timing t1 (hereinafter sometimes referred to as “first multiple sweat period X1”) and a period from timing t2 to timing t3 (hereinafter referred to as “second multiple sweat period X2” And the period from timing t4 to timing t5 (hereinafter, may be referred to as "third sweat period X3"), as shown in FIG. Sweaty period). Also, a period from timing t1 to timing t2 (hereinafter sometimes referred to as “first small sweat period Y1”) and a period from timing t3 to timing t4 (hereinafter referred to as “second small sweat period Y2” In some cases, as shown in FIG. 6, the user's sweating amount is low (low sweating period).

The calculation control unit 30 also stores the following information of the first to sixth equations.
1st formula: fan rotation speed Na (rpm) = 40 x (T-25) + 4 x (H-40) for the first multiple sweat period
Second equation: fan speed for the first low sweat period Nb (rpm) = 10 x (T-25) + 1 x (H-40)
The third equation: Fan rotation speed Nc (rpm) = 30 × (T-25) + 3 × (H-40) for second sweat period
Fourth equation: Second low sweat period fan rotational speed Nd (rpm) = 7 × (T-25) + 0.7 × (H-40)
5th equation: fan rotation speed Ne for the third sweat period Ne (rpm) = 20 x (T-25) + 2 x (H-40)
Equation 6: Stabilizing fan rotational speed Nf (rpm) = 3 x (T-25) + 0.3 x (H-40)
However, T represents temperature (° C.) (value of temperature information for air volume control acquired by the temperature and humidity information acquisition unit 15), and H is humidity (%) (air volume control acquired by the temperature and humidity information acquisition unit 15) Value of the humidity information for

  From the information received from the sleep information acquisition unit 14 and the temperature / humidity information acquisition unit 15, each of the above-described Equations 1 to 6 corresponds to the fan 8 having a high correlation with the air volume (ventilation volume) of the appropriate wind generation unit 20. It is a calculation equation set in advance to calculate the number of revolutions. Each equation is set in consideration of the tendency of the amount of sweating in the corresponding period, etc. For example, the first equation is an optimal calculation equation in consideration of the tendency of the amount of sweating in the first sweat period X1, etc. It is set to become. As is clear from the contents of each equation, the higher the temperature T, the higher the number of rotations (the larger the air volume), and the higher the humidity H, the higher the number of rotations in any of the equations 1 to 6 (The amount of air flow is large.)

  The air volume control unit 16 calculates the first multiple sweat period fan rotational speed Na based on the first equation in the first multiple sweat period X1 and a period before this, and uses this calculation result as the rotational speed of the fan 8 Decide as. Further, the air flow rate control unit 16 calculates the first low sweat period fan rotation number Nb based on the second equation in the first low sweat period Y1, and determines the calculation result as the rotation number of the fan 8. Further, the air flow rate control unit 16 calculates the fan speed Nc for the second sweat period based on the third equation in the second sweat period X2, and determines the calculation result as the rotation speed of the fan 8. Further, the air flow rate control unit 16 calculates the second low sweat period fan rotation number Nd based on the fourth equation in the second low sweat period Y2, and determines the calculation result as the rotation number of the fan 8. In the third sweat period X3, the air flow rate control unit 16 calculates the fan rotation speed Ne for the third sweat period based on the fifth equation, and determines the calculation result as the rotation speed of the fan 8. In the period after the third sweat period X3, the air volume control unit 16 also calculates the stable period fan rotation number Nf based on Equation 6, and determines the calculation result as the rotation number of the fan 8.

  The air volume control unit 16 sends the latest information on the number of revolutions to the fan drive unit 9 every time the number of revolutions of the fan 8 is determined as described above. The fan drive unit 9 rotates the fan 8 at the latest relevant rotational speed based on the received information. Thereby, the air volume of the wind generation part 20 is controlled appropriately, and the diffusion speed (exhaust speed) of the water vapor | steam produced | generated by perspiration can be raised according to the amount of perspiration. That is, by increasing the air volume, the air stirring effect inside the cushion material cover fabric is enhanced, and the water vapor (high humidity air) staying in the internal space of the cushion material cover fabric is rapidly diffused and discharged to the outside of the upper mattress 4 Since it can be done, it is possible to reduce the heat and humidity without excessively lowering the temperature and humidity in the bedroom and the bed even in a time zone where the amount of sweat is large.

  The mattress ventilation system 1 is preferably used under conditions where the temperature and humidity in the bedroom become constant (for example, the temperature is 20 ° C. and the humidity is 40%) by using an air conditioner. In the case where the temperature and humidity change, it is preferable to correct the fan rotational speed according to the temperature and humidity in the bedroom. As an example of the correction method, the temperature and humidity of the room are divided into about five steps, and the user can select it with a dial or the like according to the season, or the information of the temperature and humidity sensor which measures the temperature and humidity in the bedroom There is a method of acquiring and correcting.

  In the present embodiment, the fan rotational speed is uniquely calculated from the temperature information and the humidity information using each of the above-mentioned formulas 1 to 6 consisting of a simple linear expression, but these calculations The equation shows an example, and it is desirable to set the equation and coefficients in accordance with the ability of the wind generation unit 20 and the metabolic amount of the user. Further, in the present embodiment, the fan rotation number (air volume) until awakening immediately after going to bed (up to REM sleep) is controlled using the first equation for the first multiple sweat period X1 as described above. The reason is that it was assumed that the temperature and humidity in the upper mattress 4 would rise significantly immediately after going to bed. In addition, instead of using the first equation for the first multiple sweat period X1, a control equation dedicated to this period may be set.

  Further, in the above embodiment, the fan 8 is rotated at a fixed speed at the number of rotations determined by the air volume control unit 16. However, the wind speed may be increased or decreased so that the air volume per unit time does not change. Preferably, the generation of the wind may be performed intermittently (the operation of generating the wind of the wind generation unit 20 may be performed intermittently) so that the air volume per unit time does not change. In this way, since it is possible to temporarily create a quick wind flow, it is possible to enhance the diffusion effect of the moisture held in the clothes and the cushion material cover. In particular, although it becomes difficult to diffuse the water once held in the clothes and cushion material cover, the diffusion of water vapor by the quick wind for a short time does not excessively increase the air volume per unit time. Since the temperature is increased, sweat can be diffused quickly, and the temperature and humidity in the bed can be prevented from being excessively increased, and the humidity in the bed can be kept comfortable.

  In addition, when the operation of generating the wind of the wind generation unit 20 is performed intermittently, the temperature and humidity information acquisition unit 15 acquires information of temperature and humidity when the operation of generating the wind is stopped. You may do so. In this way, the influence of the wind on the detection accuracy of temperature and humidity can be suppressed, and it becomes easy to acquire information of temperature and humidity with high accuracy as much as possible.

  Next, a specific example of the flow of the operation of the mattress ventilation system 1 will be described below with reference to the flowchart shown in FIG.

  The mattress ventilation system 1 is provided with a power switch (not shown), and can be switched on / off by the operation of the user or the like. The system 1 is normally turned off to save power when not in use, and is turned on at the time of use (when the user goes to bed).

  When the user or the like performs a power on operation (step S1), the mattress ventilation system 1 shifts to the power on state, and acquisition of sleep depth information by the sleep information acquisition unit 14 is started, and temperature and humidity information is obtained. Acquisition of temperature information and humidity information by the acquisition unit 15 is started (step S2). Subsequently, real-time sleep depth information, temperature information, and humidity information are sequentially and continuously acquired. In the mattress ventilation system 1, when a predetermined set time (for example, a scheduled time of going to bed) comes, or based on the detection result of a part or all of the respective sensors (5a to 5c, 6a to 6c) When or the like is detected, the power may be switched on automatically.

  Further, immediately after the mattress ventilation system 1 shifts to the power-on state, driving of the fan 8 using the first equation is started (step S3). More specifically, the air volume control unit 16 uses the latest information on the latest temperature and humidity to acquire the latest fan rotation speed Na for the first sweat period based on the information and the first equation. calculate. Then, the fan drive unit 7 drives the fan 8 to rotate at the first multiple sweat period fan rotational speed Na. The driving of the fan 8 using the first equation is performed until the first low sweat period Y1 starts (in other words, until the timing t1 arrives).

  On the other hand, when shifting to the first low sweat period Y1 (Yes in step S4), driving of the fan 8 using the second equation is started (step S5). More specifically, the air volume control unit 16 updates the latest fan rotation number Nb for the first low sweat period based on the information and the second equation each time the latest temperature and humidity information is acquired. calculate. Then, the fan drive unit 7 drives the fan 8 so as to rotate at the first low sweat period fan rotation speed Nb. The driving of the fan 8 using the second equation is performed until the second sweat period X2 starts (in other words, until the timing t2 arrives).

  On the other hand, when shifting to the second sweat period X2 (Yes in step S6), driving of the fan 8 using the third equation is started (step S7). More specifically, the air volume control unit 16 updates the latest fan speed Nc for the second sweat period based on the information and the third equation each time the latest temperature and humidity information is acquired. calculate. Then, the fan drive unit 7 drives the fan 8 so as to rotate at the second multiple sweat period fan rotational speed Nc. The driving of the fan 8 using the third equation is performed until the second low sweat period Y2 starts (in other words, until the timing t3 arrives).

  On the other hand, when shifting to the second low sweat period Y2 (Yes in step S8), driving of the fan 8 using the fourth equation is started (step S9). More specifically, the air volume control unit 16 updates the latest fan speed Nd for the second low sweat period based on the information and the fourth equation each time the latest information on temperature and humidity is acquired. calculate. Then, the fan drive unit 7 drives the fan 8 so as to rotate at the second low sweat period fan rotational speed Nd. The driving of the fan 8 using the fourth equation is performed until the third sweat period X3 starts (in other words, until the timing t4 arrives).

  On the other hand, when shifting to the third sweat period X3 (Yes in step S10), driving of the fan 8 using the fifth equation is started (step S11). More specifically, the air volume control unit 16 updates the latest number of revolutions Ne for the third sweat period based on the information and the equation 5 each time the latest information on temperature and humidity is acquired. calculate. Then, the fan drive unit 7 drives the fan 8 so as to rotate at the third multiple sweat period fan rotational speed Ne. The driving of the fan 8 using the fifth equation is performed until the third sweat period X3 ends (in other words, until the timing t5 arrives).

  On the other hand, when the third sweat period X3 ends (Yes in step S12), driving of the fan 8 using the sixth equation is started (step S13). More specifically, the air volume control unit 16 calculates the latest stable period fan rotational speed Nf based on the information and the equation 6 each time the latest information on temperature and humidity is acquired. Then, the fan drive unit 7 drives the fan 8 so as to rotate at the fan speed Nf for the stable period.

  The driving of the fan 8 using the equation 6 is performed until the user or the like performs the power-off operation. Normally, when the user wakes up, a power-off operation is performed by the user. When the power-off operation is performed (Yes in step S14), the driving of the fan 8 is stopped, and the mattress ventilation system 1 shifts to the power-off state. In addition, the mattress ventilation system 1 does not go to bed when a predetermined set time (for example, rising scheduled time) arrives, or based on the detection result of part or all of each sensor (5a to 5c, 6a to 6c) When or the like is detected, the power may be switched off automatically.

  As described above, the mattress ventilation system 1 acquires the sleep information acquisition unit 14 that acquires information on the sleep depth of the user of the upper mattress 4 and the temperature and humidity information acquisition unit that acquires information on the temperature and humidity of the upper mattress 4 15, a wind generating unit 20 that generates a wind in the upper mattress 4, and an air volume control unit 16 that controls the air volume of the wind generating unit 20. Further, the air volume control unit 16 controls the air volume based on the sleep depth, the temperature, and the humidity. Therefore, according to the mattress ventilation system 1, even if the temperature / humidity in the room or the amount of sweating after sleeping changes, it is possible to diffuse the water vapor by perspiration quickly by the wind and discharge it to the outside of the upper mattress 4. .

  According to the mattress ventilation system 1, since the volume of wind in the upper mattress 4 is controlled using the sleep information including the change in sleep depth together with the temperature information and the humidity information in the upper mattress 4, the sleep depth is shallow. When the amount of sweating increases such as transition from a state to a deep state, more wind can be sent into the mattress, and water vapor generated by perspiration can be diffused quickly and discharged out of the upper mattress 4 it can.

  As a result, it is possible to prevent the humidity from rising excessively and becoming hot and humid even during a large amount of sweating without impairing the heat retaining property when the user's metabolism decreases (when the calorific value from the body decreases). Furthermore, since the air volume can be adjusted in each mattress, even when two or more persons go to bed in the same room, the temperature and humidity in each person's bed can be appropriately adjusted. Even when a plurality of persons go to bed on a single mattress, such as a double-sized mattress, the air volume can be controlled as two independent mattresses on the left and right.

  Moreover, according to the mattress ventilation system 1, it becomes possible to perform air volume control more appropriately. That is, since the wind generated in the upper mattress 4 has the effect of lowering the temperature of the upper mattress 4 as well as the effect of lowering the humidity of the upper mattress 4, the air volume is determined based on the information of both the temperature and humidity of the upper mattress 4 By controlling, it is possible to realize more appropriate air volume. Moreover, since the optimal temperature and humidity of the upper mattress 4 change according to the situation of the user's sleep depth, more appropriate air volume can be realized by controlling the air volume based also on the information of the sleep depth. It is possible.

  The air volume control unit 16 controls the air volume based on a calculation result using a calculation formula (one of formulas 1 to 6) using the temperature and the humidity as parameters. The calculation formula is set such that the air volume increases as the temperature increases, and the air volume increases as the humidity increases, and is updated when the sleep depth satisfies a predetermined condition. It has become so. As described above, it is possible to realize air volume control in which the temperature and the humidity are considered in a well-balanced manner by using the appropriate calculation formula using the temperature and the humidity as parameters.

  In the present embodiment, the air volume control unit 16 recognizes each of the timings (t1 to t5) in the vicinity of each peak time (P1 to P5) of the sleep depth, and updates the calculation formula each time each of the timings arrives. It is supposed to As a result, it is easy to control the air volume more ideally using a calculation formula adapted to each of the high sweat period and the low sweat period.

  In addition, it is known that, regarding a sleep rhythm, a sleep cycle is repeated, in which a change from shallow depth to deep depth is followed by change to shallow depth as one cycle. Still further, it has been found that this sleep cycle usually takes about 90 minutes. Therefore, by utilizing this, a part of each of the timings (t1 to t5) described above may be recognized. For example, while the timing t1 is recognized in the same manner as in the present embodiment, the sleep rhythm is estimated on the assumption that the sleep cycle is 90 minutes and the lengths of the high sweat period and the low sweat period are equal. Timings t2 to t5 may be recognized based on the estimated sleep rhythm.

  Moreover, the control method of the wind volume of the wind generation part 20 (one form of the wind generation apparatus which produces a wind in the upper mattress 4) in this embodiment is sleep information which acquires the information of the sleep depth of the user of the upper mattress 4. A method including an acquisition step, a temperature and humidity information acquisition step of acquiring information on the temperature and humidity of the upper mattress 4, and a control step of controlling the air volume based on the sleep depth, the temperature, and the humidity. ing.

2. Second Embodiment Next, a mattress ventilation system 101 according to a second embodiment will be described. The mattress ventilation system 101 according to the second embodiment is basically the same as the mattress ventilation system 1 according to the first embodiment except that the numbers of the air guide tubes, the fans, and the fan driving units are different. In the following description, emphasis will be placed on the points different from the first embodiment, and the points common to the first embodiment may be omitted.

  FIG. 8 is a block diagram of a mattress ventilation system 101 according to the present embodiment, and FIG. 9 is a top view of the mattress ventilation system 101. The mattress ventilation system 101 includes the right guide tube 107 disposed to extend forward and backward on the right side of the guide tube 7 in addition to the guide tube 7 provided also in the first embodiment, and It has a left side air guide tube 117 which is disposed to extend forward and backward on the left side. These air guide tubes 107 and 117 have the same configuration as the air guide tube 7.

  The mattress ventilation system 101 further includes a right fan 108 and a right fan drive unit 109 corresponding to the right guide tube 107, and a left fan 118 and a left fan drive unit 119 corresponding to the left guide tube 117. The right fan 108 and the right fan drive unit 109 have the same functions as the fan 8 and the fan drive unit 9 provided also in the first embodiment, and are disposed on the right side of the fan 8 and the fan drive unit 9. ing. The right fan 108 is connected to the connection opening 107 b of the right air guide tube 107, and the right fan drive unit 109 plays a role of driving the right fan 108.

  The left fan 118 and the left fan drive unit 119 have the same functions as the fan 8 and the fan drive unit 9 and are disposed on the left side of the fan 8 and the fan drive unit 9. The left fan 118 is connected to the connection opening 117 b of the left air guide tube 117, and the left fan driving unit 119 plays a role of driving the left fan 118.

  In the present embodiment, the rotation direction of the fan 8 is set to a direction that generates a wind directed from the outside into the air guide tube 7, and the rotation direction of the right fan 108 is a wind directed from the inside of the right air guide tube 107 to the outside. The rotational direction of the left fan 118 is set to generate a wind directed from the inside of the left air guide tube 117 to the outside. Thereby, it is possible to effectively generate the flow of the air shown by the broken line arrow in FIG. However, the rotational direction of each fan may be set to a direction different from this.

  Further, the air volume control unit 16 determines the number of rotations of each fan 8, 108, 118, and sends information on the number of rotations of the fan 8 to the fan drive unit 9 and information on the number of rotations of the right fan 108 on the right fan drive unit 109. Information on the rotational speed of the left fan 118 is sent to the left fan drive unit 119, respectively. The rotational speed of each of the fans 8, 108 and 118 may be, for example, one third of the rotational speed of the fan 8 determined in the first embodiment.

  In the present embodiment, a plurality of air guide tubes are provided at an interval to the left and right, and the wind can be generated in the upper mattress 4 using the respective air guide tubes. Therefore, the wind can be generated more evenly in the upper mattress 4, and it becomes possible to minimize the deviation of temperature and humidity. In the case where the upper mattress 4 having a large lateral dimension is used, the effect of using a plurality of air guide tubes is remarkable. The number of the air guide tubes may be two or four or more.

3. Third Embodiment Next, a mattress ventilation system 201 according to a third embodiment will be described. The mattress ventilation system 201 according to the third embodiment is basically the same as the mattress ventilation system 1 according to the first embodiment except that the presence or absence of a wind guide tube and the number of fans and fan driving units are different. is there. In the following description, emphasis will be placed on the points different from the first embodiment, and the points common to the first embodiment may be omitted.

  FIG. 10 is a block diagram of the mattress ventilation system 201 according to the present embodiment, and FIG. 11 is a front view of the mattress ventilation system 201. As shown in FIG. The mattress ventilation system 201 has a head side fan 208a, a leg side fan 208b, and a head side fan drive in place of the air guide tube 7, the fan 8 and the fan drive 9 provided in the first embodiment. 209a and a leg side fan drive unit 209b are provided.

  The head side fan 208 a and the leg side fan 208 b have the same function as the fan 8 in the first embodiment, and the head side fan drive unit 209 a and the leg side fan drive unit 209 b operate the fan in the first embodiment It has the same function as part 9. The head-side fan 208a is rotationally driven by the head-side fan drive unit 209a, and the leg-side fan 208b is rotationally driven by the leg-side fan drive unit 209b. The head side fan 208 a is provided on the head side (front side) side surface of the upper mattress 4, and the leg side fan 208 b is provided on the leg side (rear side) side surface of the upper mattress 4.

  The rotational direction of the head-side fan 208a is set to a direction that generates a wind from the outside into the upper mattress 4, and the rotational direction of the leg-side fan 208b is a direction that generates a wind from the inside of the upper mattress 4 to the outside Is set to. Thereby, it is possible to effectively generate a wind from the front side to the rear side in the upper mattress 4 by the actions of the fans 208a and 208b.

  Further, the air volume control unit 16 determines the number of rotations of the fans 208a and 208b, and transmits the information on the number of rotations of the head fan 208a to the head fan drive unit 209a and the information on the number of rotations of the leg fan 208b. Are respectively sent to the leg-side fan drive unit 209b. The rotational speeds of the fans 208a and 208b may be, for example, one half of the rotational speed of the fan 8 determined in the first embodiment.

  As the wind direction in the upper mattress 4, it is preferable to send the wind from the body corresponding portion having a relatively large sweat amount toward the leg corresponding portion, but if it is a method that can ventilate the inside of the upper mattress 4. There is no particular limitation, and for example, the wind may be sent from the leg corresponding portion toward the head corresponding portion. Also, fans may be provided on the left and right sides of the upper mattress 4 to generate a wind from one side of the left side and the right side of the upper mattress 4 to the other.

  In the upper mattress 4 of the mattress ventilation system 201 according to the third embodiment, it is preferable to provide a cushion material cover 205 as shown in FIG. FIG. 12 is a perspective view of the mattress ventilation system 201 when the upper mattress 4 formed by covering the cushion material cover 205 is used.

The cushion cover 205 includes a first highly breathable fabric 205a in contact with the upper body of the user, a first highly breathable fabric 205b in contact with the lower body of the user, and a low breathable fabric 205c other than them. Cover the outer peripheral surface of 4. The first and second highly breathable fabrics 205a and 205b are disposed on predetermined portions of the upper surface of the cushioning cover 205, and the low permeability fabric 205c is disposed on other portions (including the side portion) of the cushioning cover 205. ing. The air permeability of the first and second highly breathable fabrics 205a and 205b is preferably 10 cm ³ / cm ² · s or more and 200 cm ³ / cm ² · s or less, and the low breathable fabric 205 c The air permeability is preferably 0.1 cm ³ / cm ² · s or more and 10 cm ³ / cm ² · s or less.

When the air permeability of the first and second highly breathable fabrics 205a and 205b is less than 10 cm ³ / cm ² · s, the diffusion rate of water vapor in the fabric is low, and the water vapor is less likely to be discharged quickly. If the air permeability of the first and second highly breathable fabrics 205a and 205b exceeds 200 cm ³ / cm ² · s, convection is likely to occur even when the wind generating unit 20 is at rest, and heat retention is improved. It is easy to lose.

If the air permeability of the low air-permeable fabric 205c is less than 0.1 cm ³ / cm ² · s, condensation tends to occur inside the upper mattress 4 and the growth of molds and mites tends to occur. When the air permeability of the low breathable fabric 205c exceeds 10 cm ³ / cm ² · s, the wind generated by the wind generation unit 20 is likely to leak to the outside (or is likely to flow from the outside), and 2 It becomes difficult to ventilate water vapor in the vicinity of the highly breathable fabrics 205a and 205b efficiently.

The air permeability of the first highly breathable fabric 205a is 50 cm ³ / cm ² · s or more, more preferably 200 cm ³ / cm ² · s or less, and the second highly breathable fabric 205 b The air permeability is more preferably 10 cm ³ / cm ² · s or more and 50 cm ³ / cm ² · s or less. The air permeability is measured by an appropriate air permeability measurement method according to JIS L 1096-1999 8.27.1 A method (Frazil method).

Since the first highly breathable fabric 205a is provided on the surface in contact with the upper body of the user whose sweating amount is relatively large, water vapor is rapidly diffused into the upper mattress 4 at the time of sweating.
The second highly breathable fabric 205b is provided on the surface in contact with the lower body of the user having a relatively small amount of sweat, so that the water vapor generated at the time of sweating is appropriately diffused inside the upper mattress 4.

  The low breathable fabric 205 c prevents the wind generated by the wind generating unit 20 from leaking to the outside of the upper mattress 4, so the first highly breathable fabric can be obtained without excessively increasing the air volume generated by the wind generating unit 20. The water vapor that has entered the upper mattress 4 can be efficiently discharged via the 205a and the second highly breathable fabric 205b. In the present embodiment, the bottom surface of the cushioning material cover 205 is formed of the low air-permeable fabric 205c having low air permeability. However, when the upper mattress 4 is installed directly on the bed 2 composed of a low breathable board or the like without using the lower mattress 3, the wind may leak or flow from the bottom of the cushion material cover 205. In the case where the property is low, a highly permeable fabric may be used on the bottom, or the bottom may not be covered with the fabric.

  As described above, the upper mattress 4 shown in FIG. 12 includes a cushioning material having ventilation and a cushioning material cover 205 for covering the cushioning material, and the air permeability of at least part of the upper surface of the cushioning material cover 205 is The air permeability of the side surface of the cushion material cover 205 is higher than that of the cushion material cover 205. Since the air permeability of the upper surface of the cushioning material cover is high as described above, the water vapor due to perspiration of the user is rapidly diffused into the upper mattress 4 and at the same time the air volume is increased in the vicinity of the upper surface of the cushioning material cover supporting the user. The wind can be sent efficiently without excessive build up. As a result, the air (air flow) guided to the vicinity of the upper surface of the cushion cover in contact with the user diffuses the water vapor staying in the cushion cover and is discharged to the outside of the upper mattress 4.

4. Others The mattress ventilation system of each embodiment described above has the following configuration, and the heat of the human body itself is generated according to the sleep state, so that the state of the bedding is suitable for sleep using the moisture. It is possible to control the ventilation in the bedding appropriately. The mattress ventilation system is a system that controls the state of the upper mattress 4 by the wind generated in the upper mattress 4 (a form of mattress), and acquires sleep information to acquire information on the sleep depth of the user of the upper mattress 4 The air volume control unit 16 is provided to control the air volume in the upper mattress 4, and the air volume control unit 16 sets the air volume in a period in which the sleep depth is deep compared to a period in which the sleep depth is shallow. It is supposed to be configured more.

  The mattress ventilation system further includes a temperature and humidity information acquisition unit 15 (one form of a mattress information acquisition unit) for acquiring at least humidity information of the upper mattress 4 reflecting the humidity around the user, and the air volume control unit 16 The air volume is controlled based on at least the humidity information. The mattress information acquisition unit also acquires the temperature information of the upper mattress 4, and the air volume control unit 16 controls the air volume based on the humidity information and the temperature information. Further, the mattress information acquiring unit acquires at least one of the humidity information and the temperature information using a sensor provided in the vicinity of the mattress upper surface close to the body surface of the user.

  As mentioned above, although embodiment of this invention was described, the structure of this invention is not restricted to the said embodiment, It is possible to add a various change in the range which does not deviate from the main point of invention. That is, the above embodiments should be considered as illustrative in all points and not restrictive. It is understood that the technical scope of the present invention is indicated not by the description of the above embodiment but by the scope of the claims, and includes all modifications that fall within the meaning and scope equivalent to the scope of the claims. It should.

  The present invention is applicable to mattress ventilation systems and the like.

1, 101, 201 mattress ventilation system 10 bed part 20 wind generation part 30 information processing part 2 bed 3 lower mattress 4 upper mattress 5a to 5c body movement detection sensor 6a to 6c wet temperature detection sensor 7 air guide tube 7a head vent 7b Connection opening 7c to 7j Intermediate air vent 8 fan 9 fan drive 14 sleep information acquisition unit 15 temperature and humidity information acquisition unit (mattress information acquisition unit)
16 Air flow control unit

Claims (16)

What is claimed is: 1. A mattress ventilation system for controlling the condition of said mattress by the wind generated in the mattress, comprising:
A sleep information acquisition unit for acquiring information on the sleep depth of the mattress user;
And an air volume control unit for controlling the air volume in the mattress,
The air volume control unit
A mattress ventilation system characterized in that the air volume is increased in a period in which the sleep depth is deep compared to a period in which the sleep depth is shallow. A mattress information acquisition unit for acquiring at least humidity information of the mattress reflecting the humidity around the user is provided.
The air volume control unit
The mattress ventilation system according to claim 1, wherein the air volume is controlled based on at least the humidity information. The mattress information acquisition unit also acquires temperature information of the mattress,
The air volume control unit
The mattress ventilation system according to claim 2, wherein the air volume is controlled based on the humidity information and the temperature information. The mattress information acquisition unit
The mattress ventilation system according to claim 3, wherein at least one of the humidity information and the temperature information is acquired using a sensor provided near the upper surface of the mattress close to the body surface of the user. The air volume control unit controls the air volume based on a calculation result using a calculation formula using the temperature information and the humidity information as parameters.
The calculation formula is
The air volume increases as the temperature increases, and the air volume increases as the humidity increases.
The mattress ventilation system according to claim 3 or 4, wherein the sleep depth is updated when a predetermined condition is satisfied. The air volume control unit
Recognize each timing in the vicinity of each peak of the sleep depth,
The mattress ventilation system according to claim 5, wherein the calculation formula is updated each time the timing arrives. The sleep information acquisition unit
The body movement detection sensor which detects a user's body movement is included, The information of the said sleep depth is acquired based on the detection result of this body movement detection sensor, Any one of the Claims 1-6 characterized by the above-mentioned. Mattress ventilation system as described in. A wind generating unit for generating a wind in the mattress,
The wind generation unit
An air guide tube extending substantially in the height direction and having a plurality of ventilating holes, which generates the wind by delivering air into the air guide tube or sucking air from the air guide tube,
The mattress ventilating apparatus according to any one of claims 3 to 6, wherein the air vent is formed such that the air flow rate is larger in the body corresponding portion than in the leg corresponding portion. system. The ventilation holes are
It is arranged to line up along the extending direction of the air guide tube,
The mattress ventilation system according to claim 8, wherein a portion corresponding to the body corresponding portion is disposed so as to be narrower than a portion corresponding to the leg corresponding portion. The mattress information acquisition unit
A plurality of temperature and humidity sensors are included, and the highest temperature and humidity information among the temperature and humidity detected by each of the plurality of temperature and humidity sensors is acquired as information used for controlling the air volume. A mattress ventilation system according to any one of claims 3 to 6.   The mattress ventilation system according to claim 8 or 9, wherein the wind generating operation in the wind generating unit is performed intermittently.   The mattress ventilation system according to claim 11, wherein the mattress information acquisition unit acquires the temperature information and the humidity information when the operation for generating the wind is stopped. 13. A mattress ventilating system according to any of the preceding claims, comprising the mattress.
The mattress includes a cushioning material having ventilation and a cushioning material cover provided on at least the upper surface of the cushioning material,
The cushion material cover has an air permeability of 10 cm ³ / cm ² · s or more and 200 cm ³ / cm ² · s, which is measured by the air permeability measurement method according to JIS L 1096-1999 8.27.1 A method. A mattress ventilation system characterized by the following. The mattress, which supports the user on the top surface, has a cushion having ventilation and a cushion cover that covers the cushion.
13. A mattress ventilating system according to any of the preceding claims, wherein the permeability of at least part of the upper surface of the cushioning cover is higher than the permeability of the side of the cushioning cover. A method of controlling an air volume of a wind generating device for generating a wind in a mattress, comprising:
A sleep information acquisition step of acquiring information on the sleep depth of the mattress user;
Temperature / humidity information acquiring step of acquiring information of temperature and humidity of the mattress;
Controlling the volume of air based on the depth of sleep, the temperature, and the humidity. A mattress that supports the user on the top side,
A temperature and humidity information acquisition unit for acquiring information on the temperature and humidity of the mattress;
A wind generating unit for generating a wind in the mattress;
And an air volume control unit for controlling the air volume of the wind generation unit;
The mattress includes a cushioning material having ventilation and a cushioning material cover covering the cushioning material,
A mattress ventilation system characterized in that the air permeability of at least a portion of the upper surface of the cushioning cover is higher than the air permeability of the side of the cushioning cover.