JP2011145052A - Air shower device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air shower device capable of improving energy saving and elongation of a life, having an insect-proof effect, and capable of enhancing dust removal efficiency. <P>SOLUTION: A ceiling case 2, a body case 3 and an auxiliary case 4 included in the air shower device 1 are arranged with LED illuminations 6a, 6b, 6c having high energy saving performance, and reduced in deterioration caused by the repetition of turn-on/off operations. The LED illuminations 6b provided in the body case 3 can be assembled in an operation panel. An upper space generated in a body case 3 or auxiliary case 4 side can be arranged with an air blowing nozzle capable of blowing air to a head or a shoulder of a person 8 coming into a room through a door in an air shower indoor space 11, and the dust removal efficiency is enhanced. The LED illuminations are reduced in glare by directing irradiation directions along the center direction of the air shower indoor space 11, and reduced in leakage toward the outside, thus illuminating the air shower indoor space. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an air shower apparatus that blows air when an air shower room enters and exits to prevent inflow and carry-in of dust, and relates to an air shower apparatus that uses LED lighting as illumination of the air shower room.

  The present invention relates to an air shower apparatus that is installed at a doorway of a clean room or a work room and prevents inflow and carry-in of dust and insects into the clean room or work room.

  An air shower device is a device that is installed at the entrance of a clean room or work room that manufactures semiconductors, precision machinery, etc., or manufactures or processes food, and is used as a passage or front room of the clean room and work room. Or it is a device to prevent the inflow / carrying-in of dust by blowing an air shower on a person or object trying to enter the work room and blowing off dust adhering to a person's clothes or objects. .

  In a conventional air shower device, a fluorescent lamp has been used as a lighting device for illuminating the air shower room. Moreover, most of the total power consumption of the air shower device is the power consumed to turn on the fluorescent lamp, and the air shower device is equipped with components with high power consumption such as a motor for rotating the fan. The frequency of use is low, and the power consumption of fluorescent lamps that are always on is large. If an automatic light-off function is installed and used as an energy saving measure, the light is turned on and off frequently and uniformly, so that the glow lamp deteriorates and the life is shorter than when it is continuously lit. In addition, when used continuously, insects tend to come close to the nature of the light of the fluorescent lamp, and when installing an air shower device in a food manufacturing or processing factory, it is most hated or not to come in. Insects will enter the factory where there should not be. Furthermore, since fluorescent lamps could not be installed compactly on the air shower room or on the inner wall thereof, space was taken up in the air shower device.

  As an example of a conventional air shower device, Patent Document 1 discloses that an illumination lamp is disposed on a ceiling, has a turn-off timer in the room, and resets the timer when entry is detected while the turn-off timer is operating. In addition, it is described that the switch consumption due to frequent lighting on / off is suppressed.

JP 2004-93010 A

  In this way, the power of the fluorescent lamp occupies most of the total power consumption of the air shower, and since people frequently enter and exit like the air shower, the fluorescent lamp ON / OFF function, that is, If it is an air shower device with an automatic light-off function, it is necessary to take measures against the extremely short life. In addition, since the light from the fluorescent lamp includes a wavelength region in which insects easily react, an air shower device for manufacturing and processing foods needs measures against insects. Furthermore, since the fluorescent lamp takes up the installation place in the air shower device (there is not enough space for installation), it cannot be installed on the main body case side where the operation panel is installed. It is necessary to take measures against the fact that spraying is impossible from the past and the dust removal efficiency does not increase. Furthermore, external information in the air shower apparatus and the clean level in the apparatus could not be visually confirmed.

  An object of the present invention is to provide an air shower device that can cope with improvement of energy saving and prolongation of life, has an insect-proof effect, and improves dust removal efficiency in order to solve the above-described problems.

  In order to achieve the above object, the air shower device of the present invention is an air shower device that blows air when entering or leaving the air shower chamber to prevent the inflow and carry-in of dust. It is characterized by using LED lighting.

  The air shower device according to the present invention is the air shower device according to claim 1, wherein the air shower indoor space is surrounded by a body case and an auxiliary case, a ceiling case, and a door that are arranged to face each other, and the air shower device passes through the door. It is possible to enter and leave an air shower room, and the LED lighting is arranged in the ceiling case, the main body case or the auxiliary case.

  In the air shower apparatus of the present invention, the LED lighting is incorporated in an operation panel provided in the main body case, and enters the air shower indoor space in an upper space born on the auxiliary case side. It is characterized in that it is provided with an air blowing nozzle that allows air to be blown onto a person's head or shoulder.

  Moreover, the air shower apparatus of this invention is attached to the said main body case or the said auxiliary | assistant case with the said LED illumination in the direction which follows the center direction of the said air shower indoor space for the said LED illumination.

  Moreover, the air shower apparatus of this invention provides the mounting plate which mounts the said LED illumination, and is equipped with the hollow illumination chamber which accommodates the said LED illumination in this mounting plate, The irradiation direction of the said LED illumination is controlled by this illumination chamber. The LED illumination light has a structure that limits the spread of the LED illumination light.

  In the air shower device of the present invention, a plurality of air spray nozzles are arranged in multiple stages on the main body case and the auxiliary case, respectively, and the nozzles attached to the main body case and the auxiliary case are staggered. It is characterized by being attached asymmetrically.

  Further, the air shower device of the present invention is characterized in that the nozzles arranged in the main body case and the auxiliary case are arranged in a staggered manner.

  In addition, the air shower device of the present invention has an automatic light-off function that turns on the LED lighting when a person enters the indoor space of the air shower and turns off the light after a predetermined time has passed when the person leaves. It is equipped with it.

  In addition, the air shower apparatus of the present invention is characterized in that the LED lighting is controlled to blink and display according to emergency information such as a fire, an earthquake, and an abnormality and the clean level of the air shower indoor space.

  Moreover, the air shower apparatus of this invention was equipped with the insect prevention mode which makes the illumination light of the said LED illumination the illumination color which an insect repels.

  Moreover, the air shower apparatus according to the present invention is characterized in that the LED lighting is configured to be controlled to be switched from the normal operation mode to the insect-proof mode when entering or leaving the air shower indoor space.

  Further, the air shower device of the present invention switches from the normal operation mode to the insect repellent mode, or from the insect repellent mode to the normal operation mode in conjunction with the opening and closing operation of the door that opens and closes when entering and leaving the air shower indoor space. The illumination color of the LED illumination is switched and controlled.

  Further, the air shower device of the present invention includes a normal operation mode LED that is lit in the normal operation mode, and an insect proof mode LED that is lit in the insect proof mode different from the illumination color of the LED. The normal operation mode LED and the insect control mode LED are controlled to be turned on and off in conjunction with the opening and closing operation of the door that opens and closes when entering and leaving the space.

  As described above, the air shower apparatus of the present invention can be brought closer to the purpose by optimally designing the mounting method and the usage method of LED lighting.

  The present invention can achieve energy saving by using LED lighting, as compared with fluorescent lamps, which accounted for most of the total power consumption in the conventional air shower apparatus. In the case of a fluorescent lamp, the life of not only a fluorescent tube but also a glow lamp is short by repeating ON / OFF. However, by using LED lighting, it shows high durability against repeated ON / OFF. Long life can be expected. Further, if an automatic turn-off function is added to the LED lighting, further significant energy saving can be expected. Further, since the LED itself does not include almost the wavelength region preferred by insects as a property of light, it is difficult for the insects to come close to even if it is turned on. In addition, LED light originally has a straight nature, and if light is not easily leaked from the door window and the light is not easily spread outward, it will be more difficult for the light to leak from the door window. Can be difficult to keep. Furthermore, the LED illumination can be mounted in a compact manner, and if it is a fluorescent lamp, it can be mounted in a place that has been so narrow that it could not be mounted so far, so that the degree of freedom in designing the air shower device can be increased.

1 is a perspective view showing an appearance of an embodiment of an air shower device according to the present invention. It is the schematic which shows the air shower room of the air shower apparatus shown in FIG. 1, and shows the example which mounted LED lighting in the ceiling case, the main body case, and the auxiliary case. It is the schematic which shows another Example of the air shower apparatus by this invention, and is a figure which shows the Example which incorporated LED illumination in the operation panel of a main body case. It is another Example of the air shower apparatus by this invention, Comprising: It is a figure which shows the state which orient | assigned the light of LED illumination to the direction in alignment with the center direction of an air shower. In the Example shown to FIG. 4 a, it is a figure which shows the state after changing the irradiation direction of the incorporated LED illumination downward. It is a three-plane figure which shows the principal part about the Example of the attachment means which attaches LED illumination to the air shower apparatus by this invention. It is a figure which shows the Example of the air shower apparatus incorporating the attachment means shown to FIG. 5a. It is a figure explaining the automatic light extinction function of LED lighting attached to the air shower apparatus by this invention. It is an operation | movement figure (flow diagram) of the automatic light extinction function of LED illumination shown in FIG. 6a. It is the figure which showed the interlocking | linkage with the other electrical components of the air shower apparatus by this invention. It is an operation | movement figure (flow diagram) which shows interlocking | linkage with the other electric component shown in FIG. 7a. It is the figure which showed the operation | movement control (flow figure) of the illumination color of LED illumination in insect prevention mode, FIG.8 (a) represents the flowchart at the time of clean room leaving, FIG.8 (b) represents the flow at the time of clean room leaving. . It is the figure which showed the control operation (flow figure) of lighting / extinguishing LED lighting in insect repellent mode, Figure 9 (a) shows the flow figure at the time of entering the clean room, Figure 9 (b) when the clean room leaving the room Yes. It is a front view which shows another Example of this invention which arranged the nozzle of the air shower apparatus in zigzag form. FIG. 11A is a cross-sectional view taken along the line AA of FIG. 10, and FIG. 11B is a cross-sectional view taken along the line BB of FIG. 10. FIGS. 12A and 12B show another embodiment in which the nozzles of the air shower device are arranged in different stages. FIG. 12A is a cross-sectional view taken along the line AA in FIG. 10, and FIG. 12B is a cross-sectional view taken along the line BB in FIG. It is.

  Hereinafter, an embodiment of an air shower device according to the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an embodiment of an air shower apparatus according to the present invention. The air shower device 1 includes a ceiling case 2 constituting the ceiling, and a main body case 3 which is disposed on one side of the air shower indoor space 11 and houses main mechanisms for blowing and lighting for the air shower device 1. , An auxiliary case 4 disposed opposite to the main body case 3 across the air shower indoor space 11, and a door 5 for opening and closing the air shower indoor space 11. The air shower device 1 is a general model in which an LED illumination 6 is incorporated as will be described in detail below.

  FIG. 2 is a schematic view showing a state in which LED lighting is mounted in the air shower apparatus shown in FIG. An LED illumination 6a is disposed downward in the center lower portion of the ceiling case 2 so as to face the air shower indoor space 11. The main body case 3 and the auxiliary case 4 are respectively provided with LED lights 6 b and 6 c in a horizontally long direction toward the air shower indoor space 11. The LED lighting 6a, 6b, and 6c are collectively referred to as the LED lighting 6. The LED lighting 6 does not have to be mounted on all of the cases 2 to 4, and it is sufficient to mount the LED lighting 6 on any one as long as sufficient illuminance can be secured.

  Since the LED illumination 6 can be made compact in size as compared with other illumination means such as a fluorescent lamp, it can be arranged flush with the walls of the cases 2 to 4. Therefore, the LED lighting 6 does not protrude into the air shower indoor space 11, the air shower indoor space space can be secured widely, and the wall surfaces of the cases 2 to 4 can be kept simple and clean. In FIG. 2, the spread of the light 7 irradiated from the LED illumination 6 is shown, and the state in which the person 8 in the air shower indoor space is illuminated is shown.

  Since most of the energy consumption of the conventional air shower device has been conventionally the power consumption required for lighting, the LED shower 6 is mounted in place of the fluorescent lamp as the illumination means, so that the air shower device 1 has a large energy consumption. Energy saving and long life can be expected.

  FIG. 3 is a diagram in which the LED illumination 6 b is incorporated in the operation panel 9 of the main body case 3. In FIG. 3, the main body case 3 is provided with an operation panel 9 in the upper wall of the passage side. The operation panel 9 is a device that houses various sensors such as a differential pressure gauge for controlling the operation of the air shower device 1 and various switches for blowing and lighting. Since the LED illumination 6b provided in the main body case 3 is configured in a small size, it can be arranged in the operation panel 9.

  In the case of an illuminating means such as a fluorescent lamp, it cannot be arranged in the operation panel 9, and therefore the fluorescent lamp is usually provided on the side of the auxiliary case 4 facing the fluorescent lamp. For this reason, the upper space on the auxiliary case 4 side is spent on the fluorescent lamp housing position, and the air nozzle is arranged avoiding the fluorescent lamp. According to the embodiment of the present invention, the illumination means is disposed in the operation panel 9 on the main body case 3 side as the LED illumination 6b, so that a space 4a is created in the upper part on the opposite auxiliary case 4 side. In the vacant space 4a generated in the auxiliary case 4, nozzles for air showers and other electrical products can be installed.

  Dust is small and light, but generally tends to fall from above. Accordingly, the person 8 tends to have dust on the head and shoulders. In the air shower apparatus shown in FIG. 3, an air nozzle can be arranged in a space 4 a vacated in the upper part of the auxiliary case 4. In such a case, the air jetted from the air nozzle can blow the air on the head and shoulders of the person 8 to remove the adhering dust, and the dust can be prevented from being brought into the clean room.

  FIG. 4a is a view in which LED illumination is incorporated in the operation panel, as in FIG. In FIG. 4 a, the illustration of the operation panel is omitted and the LED illumination 6 b is shown protruding from the wall surface of the main body case 3, but it is obvious that the LED illumination 6 b may be arranged in the wall surface of the main body case 3. . If the LED illumination 6b remains in the mounting state shown in FIG. 4a, the person feels that the illumination light from the LED illumination 6b is received directly in front because of the straightness of the light 7 emitted by the LED illumination 6b. There is also a problem that the entire air shower device 1 cannot be irradiated satisfactorily because the spread of light is small. Therefore, as shown in FIG. 4b, it is preferable to change the irradiation direction by shifting the attachment of the LED illumination 6b by a certain angle. In the structure shown in FIG. 4b, the mounting angle of the mounting plate incorporated in the main body case 3 is changed to swing downward, that is, the spread of the light 7 from the LED lighting 6b is shifted toward the center of the air shower chamber. Is. Accordingly, it is possible to prevent the person in the air shower indoor space 11 from being directly irradiated with light from the LED illumination 6 b and to irradiate the entire air shower indoor space of the air shower device 1. Although the LED illumination 6b attached to the main body case 3 has been described as an example in which the spread of the light 7 is shaken downward, the same applies to the LED illumination 6c attached to the auxiliary case 4.

  Compared with the spread of light in the case of a fluorescent lamp, the spread of the light 7 of the LED illumination 6 is narrow, so that it can be said that the attracting ability of insects is low by itself. FIG. 5a is a three-side view showing the main part of the attachment means that can further limit the irradiation range of the LED illumination in still another embodiment of the air shower device according to the present invention shown in FIG. 4b. The structure shown in FIGS. 5a and 5b is a structure in which the spread of the light 7 can be further restricted by devising the structure of the mounting plate 6d in which the main body case 3 or the auxiliary case 4 is incorporated.

  In the main body case 3 or the auxiliary case 4 of the air shower device, a hole 3b or 4b is formed at the center upper portion of the upper panel 3a or 4a, and the mounting plate 6d on which the LED lighting 6b or 6c is mounted is formed in the hole 3b or It is fitted and attached to 4b (FIG. 5b). As shown in the side view (C) of FIG. 5a, the mounting plate 6d includes an inclined plate 6h inclined upward in the figure, and a downward inclined line that is orthogonal to the inclined surface 6h and is continuously provided from the upper edge of the inclined surface 6h. The illumination chamber 6j having an upper inclined surface 6i and having a generally triangular shape is provided, and the LED illumination 6b or 6c is fixed to the upper inclined surface 6i of the illumination chamber 6j. That is, the illumination chamber 6j is attached in such a manner that it is embedded in the upper panel 3a or 4a in a state where the corner 6e is biased upward and retracted backward (FIG. 5a). Since the LED illumination 6b or 6c is mounted at the corner portion of the corner portion 6e, the light 7 emitted from the LED illumination 6b or 6c is irradiated within a range θ sandwiched between two extensions defining the corner portion 6e. In this irradiation, the central light when the LED illumination 6b or 6c is placed beside is shaken downward, so that glare is reduced.

  Since the mounting plate 6d is mounted in a recessed state with respect to the upper panel 3a or 4a, the side end portions 6f and 6g block the light 7 irradiated from the LED illumination 6b or 6c. Therefore, as shown in FIG. 5b, the light range φ from the LED illumination 6b or 6c is prevented from spreading in the direction toward the doors 5 and 5 by the side end portions 6f and 6g, as shown by the lights 7 and 7. The amount of light leaking to the outside of the air shower device through the door windows 10 and 10 of the doors 5 and 5 is very small or almost eliminated. In this way, the light 7 from the LED illumination 6b or 6c is suppressed from spreading in the direction perpendicular to the light 7 in addition to the air shower direction. As a result, insects from the outside of the air shower device can be greatly reduced. Here, the light has a visible light wavelength region of insects, and is assumed to be in the range of about 300 nm to 400 nm.

  FIG. 6a shows the LED lighting 6 (LED lighting 6a provided on the ceiling case 2 automatically when the person 8 enters the air shower indoor space 10, but the LED lighting 6b, 6c provided on the other case. Is a simplified diagram depicting that the LED lighting 6 is automatically turned off after a few seconds when the room is turned on and leaves the room. This is a function that is realized because the LED illumination 6 is less energy-reduced by automatic turning off and is less subject to repeated deterioration than a fluorescent lamp. However, if you frequently enter and leave the room, the light will be turned on and off frequently, and if not as much as a fluorescent lamp, it will deteriorate somewhat, so it will turn off a few seconds after the person 8 leaves the room. Set to

  FIG. 6b is a flowchart showing the automatic turn-off operation. The flow for entering the clean room is shown on the left. The dirty side (outside) door 5 is opened (step S1; abbreviated as “S1”, the same applies hereinafter), the LED illumination 6 is turned on (S2), and the person 8 enters the air shower room 15. Thereafter, the dirty side door 5 is closed (S3), and an air shower is performed. After the air shower, the clean side (clean room side) door 5 opens (S4), and when the person 8 leaves the air shower room 15, the clean side door closes (S5). Then, after several seconds have passed (S6), the LED illumination 6 is turned off (S7). Although the LED itself is very little deteriorated by repeated ON / OFF, other electric products are more likely to be deteriorated than the LED when the ON / OFF of lighting is repeated. Therefore, when the person 8 enters and leaves continuously at the time of going to work or leaving work, it is preferable not to repeat turning on and off each time, but to wait for several seconds to turn off at S6. Further, when this person enters and exits the room continuously at short intervals, the person 8 passes through the air shower room 15 that is continuously lit, and the impression received is preferable.

  When leaving the clean room, the clean side door 5 is opened (S11), the LED illumination 6 is turned on (S12), and the person 8 enters the air shower room 15. Thereafter, the clean side door 5 is closed (S13), and an air shower is performed. After the air shower, the dirty side door 5 opens (S14), and when the person 8 leaves the air shower room 15, the dirty side door 5 closes (S15). Then, after several seconds have passed (S16), the LED illumination 6 is turned off (S17). The reason for waiting for several seconds to turn off in S16 is for the same reason as in the case of entering the room.

  FIG. 7 a is a diagram illustrating an example of a countermeasure when a person enters the air shower indoor space 11 and an abnormal situation (fire, earthquake, abnormality, etc.) occurs at that time. When the person 8 enters the air shower indoor space 11 and an abnormal situation occurs at that time, the LED lighting 6 is blinked at high speed in conjunction with the fire alarm 12 or the like to notify the person 8 of the urgency. Do. The LED illumination 6 can display blinking at high speed due to its nature. The flow at this time is described in FIG. When an abnormal situation occurs (S21), the abnormal situation switch is turned on by interlocking with the fire alarm 12 or by manually turning on the emergency switch, and the LED illumination blinks at high speed (S23). In this case, it is more preferable to appeal the urgency by changing the color of the blinking LED to red. The person 8 can leave the air shower indoor space 11 by unlocking the door 5 on the safe side in accordance with the high-speed blinking of the LED illumination 6.

  Further, as shown in FIG. 7a, the air shower device 1 is provided with a particle counter 13 to measure the clean level of the air shower indoor space 11, and if it is clean, the LED illumination 6 blinks three times to allow entry. Can be taken. The flow at this time is described in FIG. According to this flow, the air shower is turned on and an air shower is blown (S31). The number of particles in the air shower indoor space 11 is measured by the particle counter 13 (S32). If the count number is less than the predetermined number, it is determined that the state is clean (S33). If not, the process returns to S32 and the particle counter 13 continues counting. If it is determined in S33 that the air shower indoor space 11 is clean, the LED illumination 6 blinks three times (S34). In this case, in order to appeal that it is safe, the LED illumination can be green or blue. In synchronization with the blinking of the LED illumination 6, the door 5 is unlocked and the person 8 leaves the air shower indoor space 11.

  In addition, even during an emergency such as a fire or earthquake, for example, during a power failure, if the field of view is dark, the direction cannot be grasped and there is a risk of a worst accident or injury. However, the LED illumination 6 can also be used as a guide light. That is, a part of the illumination light emitted from the LED illumination 6 is guided to the clean room side, and the guidance display unit is formed on the light guide unit, so that the guidance display unit emits light during a power failure such as at night. By doing, the direction of the air shower apparatus 1 used as the exit from a clean room can be confirmed, and it can guide | induce to the air shower apparatus 1 effectively.

  Furthermore, it is also possible to provide various alarm functions such as abnormal operation of the air shower device 1 itself or maintenance information by using the LED lighting 6 that illuminates the air shower device 1. That is, the illumination color of the LED illumination 6 is changed between the normal operation of the air shower device 1 and the abnormal operation of the air shower device 1 itself. For example, when a filter is clogged while an air shower is being used, or when an electrical product trips, etc., the abnormal operation of the air shower device 1 is visually indicated to the user by changing the white LED illumination 6 to, for example, yellow during normal operation. Can be informed. In addition to displaying the illumination light of the LED illumination 6 in a different color, it is also possible to notify the abnormality by, for example, blinking display at the time of abnormality.

  In addition, the insect repellent function is important in places such as food processing factories and lunch centers where food is often handled, and the LED lighting 6 is used to provide an insect repellent effect that prevents insects from entering the clean room. A method is also possible. That is, as described above, since the LED illumination 6 hardly includes the wavelength region preferred by insects as the property of light, it is difficult to attract insects when the LED illumination 6 is turned on, but the insects avoid the illumination color of the LED illumination 6. If the illumination color is used, the insect repellent effect can be further enhanced. With respect to the insect-proof mode using the LED illumination 6, the switching operation of the LED illumination 6 will be described with reference to the flowcharts of FIGS. In the normal operation mode, the illumination color of the LED illumination 6 is white in consideration of illuminance, but in the insect repellent mode, the illumination color of the LED illumination 6 is controlled in conjunction with the opening / closing of the door 5 in a yellow color to avoid insects. Do. Hereinafter, the illumination color switching control of the LED illumination 6 will be specifically described.

  FIG. 8A shows the operation when entering the clean room. In the normal operation mode, the LED illumination 6 emits white illumination light. When the dirty side door 5 is opened when entering the clean room (S41), the LED illumination is performed. 6 changes from white in the normal operation mode to yellow in the insect repellent mode (S42), and after entering the air shower room 1 and the dirty side door 5 is opened (S43), the LED illumination 6 changes from yellow to the normal operation mode. The color is switched to white (S44). Thereafter, the air jet is turned on to execute air shower for a predetermined time (S45), the air jet is turned off to end the air shower (S46), and the clean side door 5 is opened (S47). 6 changes from white in the normal operation mode to yellow in the insect-proof mode (S48), and the clean side door 5 is closed (S49), so that the LED illumination 6 changes to white in the normal operation mode (S50).

  FIG. 8B shows the operation when leaving the clean room. When the dirty door 5 is opened (S51), the LED lighting 6 changes from white in the normal operation mode to yellow in the insect-proof mode (S52). When the dirty side door 5 is closed (S53), the LED illumination 6 changes from the insect-proof mode to the white color in the normal operation mode (S54). When the clean side door 5 is opened (S55), the LED illumination 6 is changed to yellow in the insect-proof operation mode (S56). When the clean side door 5 is exited from the air shower room 15, the clean side door 5 is closed (S57). Changes to white in the normal operation mode (S58).

  Next, the LED illumination 6 for white illumination corresponding to the normal operation mode and the LED illumination 6 for yellow illumination corresponding to the insect-proof mode are provided, and each LED corresponding to each mode is interlocked with the opening / closing operation of the door 5. An embodiment when the lighting 6 is controlled to be turned on and off will be described. That is, in this embodiment, the LED illumination 6 corresponding to the normal operation mode emits a white illumination color, and the LED illumination 6 corresponding to the insect-proof mode emits a yellow illumination color. Here, if the LED illumination 6 corresponding to the insect proof mode is colored yellow by a filter that transmits the irradiation light of the LED illumination 6, the illumination light of the LED illumination 6 corresponding to each mode can be shared. It is also possible to use LED illumination 6 in which the LED itself emits yellow illumination light. In short, LED illumination 6 having different illumination light corresponding to each mode is provided, and the LED illumination 6 is linked to the door 5. Then, it is sufficient to control lighting / extinguishing according to each mode. Hereinafter, switching control of turning on / off the LED illumination 6 will be specifically described.

  FIG. 9A shows the operation when entering the clean room. When the dirty door 5 is opened (S61), the white LED illumination is turned off and the yellow LED illumination is turned on (S62). After entering / exiting the air shower room 15, when the dirty door 5 is closed (S63), the yellow LED illumination is turned off and the white LED illumination is turned on (S64). Thereafter, an air shower is performed when the air jet is turned on (S65), and the air shower is turned off and the air shower is ended (S66). Next, when the clean side door 5 is opened (S67), the white LED illumination is turned off, the yellow LED illumination is turned on (S58), and the clean side door 5 is closed (S59), the yellow LED illumination is turned off, The white LED illumination is turned on (S60).

  FIG. 9B shows the operation when leaving the clean room. When the dirty side door 5 is opened (S71), the white LED illumination is turned off, the yellow LED illumination is turned on (S72), and the dirty side door 5 is moved. When closed (S73), the yellow LED illumination is turned off and the white LED illumination is turned on (S74). When the clean side door 5 is opened (S75), the white LED illumination is turned off, the yellow LED illumination is turned on (S76), and the clean side door 5 is closed when exiting the air shower room (S77). The LED illumination is turned off and the white LED illumination is turned on (S78).

  In this way, until the clean side door 5 and the dirty side door 5 are opened until they are closed, the illumination light of the LED illumination 6 is made yellow so that the insects can be less likely to approach the air shower device 1. Insect protection can be achieved in places where food is often handled, such as food processing factories and school lunch centers.

  10 and 11 show an embodiment in which the LED lighting 6 is attached to the ceiling case 2 and the main body case 3, and a plurality of air blowing nozzles 20 are incorporated in the main body case 3 and the auxiliary case 4, respectively. Is a front view, FIG. 11A is a cross-sectional view taken along line AA in FIG. 10, and FIG. 11B is a cross-sectional view taken along line BB. The LED illumination 6b attached to the main body case 3 is disposed in the operation panel 9 in the main body case 3, and is not provided in the auxiliary case 4 as in the conventional fluorescent lamp illumination. Thereby, an empty space is generated in the auxiliary case 4. Moreover, since the space required for installation of the LED lighting 6b attached to the operation panel 9 is small, an empty space is also generated in the main body case 3. A plurality of nozzles 20 are arranged in a staggered manner in the main body case 3 and the auxiliary case 4 using the vacant space, and the nozzles 20 in the main body case 3 and the auxiliary case 4 are stepped. Arranged asymmetrically. Thus, in FIGS. 10 and 11, the vacant spaces of the cases 3 and 4 are widely used, and the nozzles 20 are arranged in a staggered manner so that the main body case 3 and the auxiliary case 4 are stepped. The nozzle arrangement of the auxiliary case 4 can be arranged one step lower than the nozzle arrangement of the main body case 3. In FIG. 11A and FIG. 11B, the nozzle 20 disposed at the uppermost stage on the auxiliary case 4 side is disposed higher than the main body case 3.

  In this manner, by arranging the plurality of nozzles 20 in a staggered manner in the main body case 3 and the auxiliary case 4, when the nozzle 20 enters the air shower chamber 15, the air from the nozzle 20 is likely to accumulate dust. 8 can be sprayed evenly on the upper body including the head and shoulders. Furthermore, if the body is rotated during the air blowing, it is possible to remove the dust adhering to the body over a wide range, thereby improving the dust removal efficiency. it can. In this manner, the LED lighting can be compactly arranged in the operation panel 9 which is an essential component of the air shower device 1, and the size of the air shower device 1 can be reduced. Further, the LED lighting is adopted. The plurality of nozzles 20 can also be effectively arranged using the empty space generated by this.

  Further, in the case where a plurality of nozzles 20 are arranged in multiple stages using empty spaces in the main body case 3 and the auxiliary case 4, other than arranging the nozzles 20 in a staggered manner as shown in FIGS. 10 and 11, For example, as shown in FIG. 12, the LED lighting is arranged in the operation panel 9 arranged at the upper part of the main body case 3, and an empty space is formed at the upper parts of the main body case 3 and the auxiliary case, so that a plurality of arranged in parallel. The nozzles 20 are arranged in multiple stages, the nozzles 20 are asymmetrically arranged in the main body case 3 and the auxiliary case 4 so as to be stepped in units of rows, and the nozzles are arranged one step lower below the operation panel 9 of the main body case 3 20 may be arranged. The empty space can be used as a mounting space for other components such as various instruments and a display device, in addition to being used as a mounting space for the nozzle 20.

DESCRIPTION OF SYMBOLS 1 ... Air shower apparatus 2 ... Ceiling case 3 ... Main body case 4 ... Auxiliary case 4a ... Empty space 5 ... Door 6 ... LED illumination 6d ... Mounting plate 7. ..LED illumination light 8 ... person 9 ... control panel 10 ... door window 11 ... air shower indoor space 12 ... abnormal state switch 13 ... particle counter 15 ... air shower Room

Claims (13)

  An air shower device that blows air when entering and leaving an air shower chamber to prevent inflow and carry-in of dust, and illuminates an air shower indoor space using LED lighting. The air shower device according to claim 1,
The air shower indoor space is surrounded by a main body case and an auxiliary case, a ceiling case, and a door arranged opposite to each other, and can enter and leave the air shower room through the door.
The LED shower is arranged in the ceiling case, the main body case, or the auxiliary case. The air shower device according to claim 2,
The LED illumination is incorporated in an operation panel provided in the main body case,
An air shower characterized in that an air blowing nozzle is provided in the upper space born on the auxiliary case side to enable air blowing to the head or shoulder of a person who has entered the air shower indoor space. apparatus. The air shower device according to claim 2,
The said LED illumination is attached to the said main body case or the said auxiliary case in the direction in which the irradiation direction follows the center direction of the said air shower indoor space, The air shower apparatus characterized by the above-mentioned. The air shower device according to claim 2,
A mounting plate on which the LED illumination is mounted is provided, and the mounting plate is provided with a recessed illumination chamber for storing the LED illumination. The illumination chamber regulates the irradiation direction of the LED illumination and restricts the spread of the LED illumination light. An air shower device characterized by having a structure to perform. The air shower device according to claim 3,
A plurality of air blowing nozzles are arranged in multiple stages on each of the main body case and the auxiliary case, and the nozzles attached to the main body case and the auxiliary case are attached asymmetrically so as to be staggered. A featured air shower device. The air shower device according to claim 6, wherein
The air shower device, wherein the nozzles arranged in the main body case and the auxiliary case are arranged in a staggered manner. The air shower device according to claim 2,
An air shower device equipped with an automatic light-off function that turns on the LED light when a person enters the indoor space of the air shower and turns off the light after a predetermined time elapses when the person leaves. . The air shower device according to claim 2,
An air shower device that controls blinking display of the LED illumination according to emergency information such as a fire, an earthquake, or an abnormality or a clean level of the air shower indoor space. The air shower device according to claim 2,
An air shower apparatus comprising an insect repellent mode in which the illumination light of the LED illumination is an illumination color that repels insects. The air shower device according to claim 10,
The LED shower is configured to control to switch from the normal operation mode to the insect-proof mode when entering or leaving the air shower indoor space. The air shower device according to claim 11,
The illumination color of the LED illumination is controlled to be switched from the normal operation mode to the insect-proof mode or from the insect-proof mode to the normal operation mode in conjunction with the opening and closing operation of the door that opens and closes when entering or leaving the air shower indoor space. An air shower device characterized by that. The air shower device according to claim 11,
The door that opens and closes when entering and leaving the indoor space of the air shower is provided with a normal operation mode LED that is lit in the normal operation mode and an insect proof mode LED that is lit in the insect proof mode different from the illumination color of the LED The air shower device is characterized in that lighting and extinguishing of the LED for normal operation mode and the LED for insect-proof mode are controlled in conjunction with the opening / closing operation.

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