JP2006219815A - Door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door device capable of effectively solving a problem of suspended bacteria and mildew at a vestibule with a door left closed. <P>SOLUTION: The interior of the door 10 is formed as a cavity 12, and a draft duct 20 is installed at the lower part. A suction port 21 formed in one side face of the draft duct 20 is exposed to the outdoor-side side face of the door 10, and a blowoff port 22 formed in the other side face is exposed to the indoor-side side face of the door 10. A blowing device 25 is installed between the suction port 21 and the blowoff port 22. An ion generator 30 is installed on the top face of the draft duct 20. The ion generator 30 emits negative ions and positive ions generated by applying alternating voltage to an electrode, into the draft duct 20, and air mixed with ions is blown off to the vestibule 1 from the blowoff port 22. A control device 40 performs operation control based on signals from an opening/closing sensor 41 or an environmental sensor 42 of the door 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door device for a building.

  Modern buildings are generally highly sealed. This tendency is particularly strong in reinforced concrete buildings. Highly sealed buildings have a problem that odors and moisture are likely to stay in the room, and dust that has entered the room, fine particles such as dead bodies of mites, airborne bacteria such as mold, or viruses accumulate in the room. In particular, the entrance is easy to get fine particles and airborne bacteria from the outside as people enter and exit. Also, in the case of rain, there is a problem that if wet umbrellas and shoes are left out, moisture will increase and mold will easily occur.

  The above problems can be solved by opening the front door and creating an air flow from the room to the outside. However, this requires a dedicated air blower to form an air flow from the room to the outdoors, and the door is not used for crime prevention.

  In Patent Document 1, an air purifying action body composed of a paper honeycomb or the like coated or mixed with a deodorizing / dehumidifying / negative ion generating material is disposed in a door body so that indoor air can be purified even when the door is closed. A door device is disclosed.

Patent Document 2 discloses an air conditioner in which an alternating voltage is applied to an electrode to generate negative ions and positive ions, and airborne bacteria are actively removed by the action of both negative ions and positive ions. Is disclosed.
Japanese Unexamined Patent Publication No. 2003-253974 (2nd page to 3rd page, FIGS. 1 to 5) Japanese Unexamined Patent Publication No. 2004-6296 (pages 4 to 12, FIGS. 1 to 9)

  Although the door device disclosed in Patent Document 1 can achieve deodorization and dehumidification of indoor air and air purification action by negative ions, it cannot perform active sterilization of airborne bacteria in the air. It is also difficult to effectively cope with the mold generation problem at the entrance.

  The air conditioner disclosed in Patent Document 2 opens the way for the sterilization of airborne bacteria in the air, but it is easy for airborne bacteria to enter from the outside as people enter and exit, and it is easy to generate mold in rainy weather. It is hard to say that it can cope with the problems specific to the entrance.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a door device that can effectively solve the problem of airborne bacteria and mold at the entrance with the door closed.

  (1) In order to achieve the above object, the present invention provides an ion generator for generating negative ions and positive ions by applying an AC voltage to an electrode on a door, and negative ions generated by the ion generator. It is characterized by installing a blower that blows out air containing positive ions toward the room.

  According to this configuration, air containing negative ions and positive ions is blown out from the door into the room, so that bacteria and fungi floating in the entrance space can be sterilized and the entrance environment can be kept clean. it can. Also, negative ions and positive ions are generated electrically by an ion generator, so that an amount of ions necessary for purification of the entrance space can be obtained with certainty.

  (2) Further, the present invention is characterized in that in the door device configured as described above, the negative ions and the positive ions are mixed into the air taken in from the outside and blown out toward the room.

  According to this configuration, fresh outdoor air can be sent into the room in a form sterilized with negative ions and positive ions, and the environment at the entrance can be greatly improved.

  (3) Further, according to the present invention, in the door device configured as described above, the negative ions and the positive ions are mixed into the air taken from the room and blown out toward the room.

  According to this configuration, the door and the room are isolated from each other, and the entrance air can be sterilized while preventing unwanted substances such as dust and pollen from entering the room.

  (4) Further, the present invention is characterized in that, in the door device configured as described above, a wind direction adjusting device is provided at an air outlet including the negative ions and the positive ions.

  According to this configuration, it is possible to send out negative ions and positive ions in the direction in which they are desired to be sent.

  (5) Moreover, the present invention is characterized in that, in the door device configured as described above, the wind direction adjusting device is capable of blowing air around the floor on the indoor side.

  According to this configuration, air can be blown around the floor at the entrance or on the footwear placed on the floor, and sterilized with negative ions and positive ions. If the footwear is wet, it can be dried.

  (6) According to the present invention, in the door device configured as described above, an opening / closing sensor for detecting opening / closing of the door is provided, and when the opening / closing sensor detects opening of the door, the ion generator and the blower are driven. It is a feature.

  According to this configuration, when there is a possibility that airborne bacteria have invaded from the outside when the door is opened, negative ions and positive ions are released and efforts are made to sterilize, so even if the ion generator and the air blower are not always driven It is possible to accurately sterilize.

  (7) According to the present invention, in the door device configured as described above, an environmental sensor for measuring an environmental parameter around the door is provided, and the driving of the ion generator and the blower is controlled based on the measured value of the environmental sensor. It is a feature.

  According to this configuration, when it comes to a situation where it is desirable to drive the ion generator and the air blower for improving the environment, the driving can be surely performed, and the timing for improving the environment is not missed.

  According to the present invention, bacteria and fungi floating in the entrance space can be sterilized by air containing negative ions and positive ions, and the environment of the entrance can be kept clean. In particular, it is effective for drying and sanitizing footwear placed at the entrance and preventing mold.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 is a partially broken perspective view of a door, FIG. 2 is a sectional view of the door, FIG. 3 is an explanatory view showing a first usage mode of the door, and FIG. 4 is an explanatory view showing a second usage mode of the door. .

  The door 10 is attached to the door cage 2 of the entrance 1 shown in FIG. 3, and includes a door knob 11 on one side (left side in FIG. 1). The side opposite to the side with the door knob 11 is connected to the door rod 2 by a hinge (not shown).

  The inside of the door 10 is a cavity 12, and a blower duct 20 is installed in the lower part thereof. A suction port 21 (see FIG. 2) formed on one side surface of the air duct 20 is exposed on the outdoor side surface of the door 10, and an air outlet 22 formed on the other side surface is exposed on the indoor side surface of the door 10. . The inlet 21 is provided with a grid-like grille 23 (see FIG. 2), and the air outlet 22 is provided with a wind direction adjusting device 24. The wind direction adjusting device 24 is configured by a louver that changes the wind direction in the vertical direction. A blowing device 25 is installed between the suction port 21 and the blower port 22. The air blower 25 includes a cross flow fan 26 and a motor 27 that rotates the cross flow fan 26, and the motor 27 is attached to a side surface of the air duct 20.

  An ion generator 30 is installed on the top surface of the air duct 20. The ion generator 30 is the same as that disclosed in Patent Document 2, and generates negative ions and positive ions by applying an AC voltage to the electrodes. The generated negative ions and positive ions are discharged into the air duct 20 and mixed into the air blown out from the air outlet 22.

  A control device 40 is also installed in the cavity 12. The control device 40 controls operation of the blower device 25 and the ion generator 30, and refers to information from a sensor provided on the door 10 in the control. There are two types of sensors, one of which is an open / close sensor 41 that detects the opening and closing of the door 10, and the other is an environmental sensor 42 that measures environmental parameters around the door.

  The open / close sensor 41 is installed at the open / close end of the door 10, and is composed of, for example, a hall element or a reflection type optical sensor. In the case of a hall element, a permanent magnet is attached to an appropriate portion of the door cage 2.

  The environmental sensor 42 is installed on the indoor side surface of the door 10. The environmental sensor 42 is a collection of a plurality of types of sensors, and measures or detects environmental parameters such as temperature, humidity, number of dust particles, odor, and gas.

  The door 10 having the above-described configuration operates as follows. The open / close sensor 41 constantly monitors the movement of the door 10. When a signal informing the opening of the door 10 is sent from the open / close sensor 41 to the control device 40, the control device 40 waits for the door 10 to be closed and drives the blower 25 and the ion generator 30. When the air blower 25 is driven, outdoor air is sucked from the suction port 21 and blown out into the room from the air outlet 22. Negative ions and positive ions are released from the ion generator 30 into the air, and the negative ions and positive ions are mixed with the air and diffused into the space of the entrance 1.

When an alternating high voltage is applied between the electrodes of the ion generator 30, plasma discharge occurs, water molecules contained in the air are ionized to form hydrogen ions (H ⁺ ), and water in the air is generated by solvation energy. The molecules are clustered with hydrogen ions to form positive ions consisting of H ⁺ (H ₂ O) _n . Similarly, oxygen molecules or water molecules contained in the air are ionized by plasma discharge to generate oxygen ions (O ₂ ⁻ ), and water molecules in the air are clustered with oxygen ions by solvation energy to form O ₂ ⁻ ( Negative ions composed of H ₂ O) _m are formed.

Simultaneously mix in the this negative ions and positive ions predetermined space, the surface of the floating bacteria in the air H ⁺ (H ₂ O) _n and _{^{O 2 - (H 2 O)}} m surrounds both ions below As shown in the formulas (1) to (3), [.OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide) which are active species are generated. Thereby, floating bacteria are destroyed by the action of decomposing active species, and sterilization is performed. Therefore, the airborne bacteria can be sterilized and removed efficiently.
H ⁺ (H ₂ O) _n + O ₂ ⁻ (H ₂ O) _m → OH + _1/2 O ₂ + (n + m) H ₂ O (1)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′}
→ 2 OH + O ₂ + (n + n ′ + m + m ′) H ₂ O (2)
H ⁺ (H ₂ O) _n + H ⁺ (H ₂ O) _{n ′} + O ₂ ⁻ (H ₂ O) _m + O ₂ ⁻ (H ₂ O) _{m ′}
→ H ₂ O ₂ + O ₂ + (n + n ′ + m + m ′) H ₂ O (3)
In the above formulas (1) to (3), n, n ′, m, and m ′ are arbitrary natural numbers.

  Due to the action of the timer built in the control device 40, the blower device 25 and the ion generating device 30 continue to operate for a certain time, while negative ions and positive ions continue to be sent out to the entrance 1 during that time. Here, when the direction of the louver of the wind direction adjusting device 24 is set upward as shown in FIG. 3, negative ions and positive ions are spread over the entire space of the entrance 1, and airborne bacteria are sterilized.

  When the direction of the louver of the wind direction adjusting device 24 is set downward as shown in FIG. 4, the wind blows around the floor 3 of the entrance 1. Thereby, bacteria and fungi present on the floor 3 are sterilized. If footwear, for example, shoes 4 is placed on the floor 3, negative ions and positive ions are sprayed on the shoes 4, and the shoes 4 are also sterilized. When the shoes 4 are wet and the shoes 4 are wet, the shoes 4 can be dried with wind.

  The direction in which the wind blown from the air outlet 22 should be blown is determined by the height of the air outlet 22. If the air outlet 22 is at a sufficiently low position, the air can be blown around the floor 3 just by blowing air toward the front. On the other hand, even when the air outlet 22 is at a high position, the air can be blown around the floor 3 by blowing it downward with the air direction adjusting device 24.

  When an electric louver is used as the wind direction adjusting device 24, the following operation is also possible. That is, after the start of driving of the blower 25 and the ion generator 30, the air in the entire space of the entrance 1 is purified by blowing upward for a certain time. After a certain period of time, the area around the floor 3 is sterilized intensively with the direction of the air flow downward.

  The wind direction adjusting device 24 shown in the figure is composed of only a louver that changes the wind direction in the vertical direction, but a louver that changes the wind direction in the horizontal direction may be added. This is the same whether it is a manual louver or an electric louver.

  The control device 40 drives the air blower 25 and the ion generator 30 not only by a signal from the open / close sensor 41 but also by a signal from the environment sensor 42. That is, when it is found from the signal from the environmental sensor 42 that the temperature and humidity of the entrance door 1 are at a level suitable for the growth of bacteria and fungi, the control device 40 turns on the blower 25 and the ion generator 30. It is driven for a predetermined time and sterilized by releasing negative ions and positive ions. When the number of dust particles exceeds a predetermined level, or when an odor or specific gas is detected, the blower 25 and the ion generator 30 are driven for a predetermined time to ventilate the door 1 and purify the air.

  In addition, the signal from the open / close sensor 41 or the environment sensor 42 is not used as a motivation for ion emission, but a manual switch is arranged at an appropriate position of the door 10 so that the resident can arbitrarily generate ions with the blower 25. The device 30 may be operable.

  A second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a partially broken perspective view of the door, and FIG. 6 is a sectional view of the door.

  In 1st Embodiment, the negative ion and the positive ion were mixed in the air taken in from the outdoors. In the second embodiment, negative ions and positive ions are mixed not in air taken from outside but in air taken from indoors. That is, the air duct 20 of the second embodiment does not have a suction port for taking in air from outside. Instead, a blower duct 50 extending in the vertical direction in the cavity 12 is connected to the inlet side of the blower 25. The upper end of the air duct 50 is connected to an air intake duct 51 provided at the upper part of the door 10. The air intake 52 of the air intake duct 51 is exposed on the indoor side surface of the door 10. Since there is a long distance from the blower duct 20 to the air intake duct 51 and it is difficult to suck a sufficient amount of air with only the suction force of the blower 25, the crossflow fan 54 and a motor that rotates the air intake duct 51 are also provided. A blower 53 consisting of 55 is installed.

  The control device 40 drives the blower 25, the ion generator 30, and the blower 53 by a signal from the open / close sensor 41 or the environment sensor 42 or by a resident's manual switch operation. While negative air and positive ions are released while circulating the air at the entrance 1, the door 10 isolates the outdoors from the room, preventing unwanted substances such as dust and pollen from entering the room, and the entrance. The air in the mouth 1 can be sterilized.

    Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention.

    The present invention can be widely used for doors of buildings, particularly doors that separate the outdoors from the room.

The partially broken perspective view of the door which concerns on 1st Embodiment Cross section of the door Explanatory drawing which shows the 1st usage condition of the said door. Explanatory drawing which shows the 2nd usage condition of the said door. The partially broken perspective view of the door which concerns on 2nd Embodiment Cross section of the door

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance door 2 Door fence 3 Floor 10 Door 20 Air duct 21 Suction inlet 22 Air outlet 24 Air direction adjustment apparatus 25 Air blower 30 Ion generator 40 Control apparatus 41 Opening / closing sensor 42 Environmental sensor 50 Air duct 51 Air intake duct 52 Air intake 53 Blower

Claims (7)

  An ion generator that generates negative ions and positive ions by applying an AC voltage to the electrodes at the door, and a blower that blows air containing negative ions and positive ions generated by the ion generator into the room A door device characterized by having installed.   The door device according to claim 1, wherein the negative ions and positive ions are mixed in air taken from outside and blown out toward the room.   The door device according to claim 1, wherein the negative ions and positive ions are mixed into air taken in from a room and blown out toward the room.   The door device according to any one of claims 1 to 3, wherein a wind direction adjusting device is provided at an air outlet including the negative ions and the positive ions.   The door device according to claim 4, wherein the wind direction adjusting device is capable of blowing air around a floor on an indoor side.   The opening / closing sensor which detects opening / closing of a door is provided, and when this opening / closing sensor detects opening of a door, the said ion generator and an air blower are driven, The any one of Claims 1-3 characterized by the above-mentioned. Door equipment.   The environmental sensor which measures the environmental parameter around a door is provided, The drive of the said ion generator and an air blower is controlled based on the measured value of this environmental sensor, The any one of Claims 1-3 characterized by the above-mentioned. Door equipment.

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