CN1849490A - Ion diffuser - Google Patents
Ion diffuser Download PDFInfo
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- CN1849490A CN1849490A CNA2004800258215A CN200480025821A CN1849490A CN 1849490 A CN1849490 A CN 1849490A CN A2004800258215 A CNA2004800258215 A CN A2004800258215A CN 200480025821 A CN200480025821 A CN 200480025821A CN 1849490 A CN1849490 A CN 1849490A
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An ion diffuser exhibiting a higher power by suppressing a disturbance or a drift flow occurring in the vicinity of an ion generator and enhancing ion generation efficiency and ion carrying efficiency. The ion diffuser comprises an ion generator generating ions from a discharge plane, an air supply passage for carrying ions generated by the ion generator, and an outlet formed at the end of the air supply passage for discharging ions. In the ion generator, an ion flow straightener is further provided in the air supply passage on the upstream side of the ion generator.
Description
Technical Field
The present invention relates to an ion diffusion device that emits ions over a wide range.
Background
An example of a conventional ion diffusion device is described in comparative example 2 (see fig. 36) described later. Patent documents 2 and 2 disclose a refrigerator having the ion diffusion device 110a mounted thereon (see fig. 35). The refrigerator 200 emits ions out of the refrigerator to kill bacteria in the vicinity outside the refrigerator. A sanitary living space is provided by killing floating bacteria outside the refrigerator, and the invasion of floating bacteria from the outside of the refrigerator into the refrigerator is suppressed when the door is opened, thereby realizing a sanitary in-refrigerator environment.
FIG. 37 shows the state where the ion beam emitted from the ion blow-out port 22 outside the refrigerator 200 having the conventional ion diffusion device 110a is H in a room at room temperature of 15 ℃+(H2O)nAnd O2 -(H2O)mThe ion concentration of each part of the room when the ion cluster is emitted into the room. Here, the cation concentration was 2000 pieces/cm3Above, and the anion concentration is 2000 pieces/cm3In the above, the bactericidal effect was confirmed.
In fig. 37, although high-concentration ions are present around the ion outlet 22 outside the refrigerator, the region is narrow and may not necessarily be sufficient. For example, the ion concentration at a position 10mm in front of the ion outlet 22 outside the refrigerator is about 10 ten thousand/cm3Although sufficient ions are generated from the ion generator 14, the ions stay at a high concentration near the outlet and do not spread throughout the room.
In order to solve this problem, there is a method of increasing the length of the air outlet 15 in the width direction and sending the airflow to a wide range.
The following comparative example 4 is given as an example. The ion diffuser 110c of comparative example 4 (see fig. 40) is configured such that a portion from the ion generating device 14 to the diffuser blowout port 15 is constituted by the expanded pipe portion 13b, and the cross-sectional area gradually and smoothly expands from the ion generating device 14 toward the diffuser blowout port 15. Further, a plurality of air deflectors 16 are provided from a portion immediately downstream of the ion generator 14 to a portion slightly upstream of the diffuser air outlet 15, and the expanded duct portion 13b is divided into a plurality of portions by the air deflectors 16. The ion generating device 14 is disposed immediately upstream of the plurality of air guide plates 16, and when the width of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow is w1 and the width of the air blowing duct 13 facing the discharge surface 14a is w2, w2 is 2 × w1, and the center of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow and the center of the air blowing duct 13 facing the discharge surface 14a are aligned at the same position.
Patent document 1: japanese application No. 2002-
Patent document 2: japanese application No. 2002-
However, in the ion diffusion device 110a, the relationship between the turbulence near the ion generating device 14 and the ion generation efficiency is not considered. For example, if there is a disturbance called a stagnation or a vortex in the air flowing near the ion generating device 14, the generated ions stay and block the generation of new ions, and the ion generation efficiency is lowered.
Further, when the air speed of the air flow flowing through the discharge surface 14a of the ion generating device 14 varies due to the influence of the drift current generated by the fan 12, the amount of ions generated decreases in a portion where the air speed is low, and the capability of the ion generating device 14 cannot be achieved in a portion where the air speed is high, and the capability of the ion generating device 14 as a whole cannot be sufficiently exhibited.
Further, if there is a disturbance of a stagnation or a vortex in the air flowing near the ion generating device 14, the probability of collision between the generated ions is greatly increased. In the case where the ion generating device 14 is a device that generates cations and anions in almost equal amounts, since the generated cations and anions lose and annihilate charges due to collisions, the efficiency of ion transport by air is reduced by the increase in probability of collisions.
Further, the ion diffusion device that diffuses ions into the air, like the ion diffusion device 110a described above, is mounted on many household electric appliances, and has the same problem as described above.
In the ion diffuser 110c, dispersion of ion concentration occurs in the direction perpendicular to the flow, and a phenomenon occurs in which the ion concentration is high near the center of the diffuser outlet 15 and low at both ends. In particular, when the air sent from the blower 12 deviates greatly and the airflow flows along one of the left and right wall surfaces of the air flow duct 13, the air speed of thediffuser air outlet 15 on the downstream side along the flowing wall surface increases, and the air speed decreases at a position other than the diffuser air outlet 15. Therefore, the ion concentration in the downstream region of the portion where the wind speed is low is reduced, and the airflow with a high wind speed does not flow through the discharge surface 14a of the ion generating device 14, so that the ion generating efficiency is greatly reduced, and therefore, the ion diffusing capability is reduced.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide an ion diffusion device that can improve ion generation efficiency and ion transport efficiency by suppressing turbulence or drift generated in the vicinity of an ion generation device, thereby achieving higher capacity. It is another object of the present invention to provide an ion diffusion device that has substantially uniform wind velocity and ion concentration at any position of an outlet of the ion diffusion device.
In order to achieve the above object, the present invention is directed to a rectifying device for rectifying air flowing in the vicinity of an ion generating device to a state of less disturbance, thereby preventing a decrease in ion generating efficiency and reducing the probability of collision between generated ions. For example, in the case where the ion generating device generates cations and anions in almost equal amounts, since it is possible to suppress the generated cations and anions from being annihilated by losing charges due to impact, it is possible to prevent the transport efficiency of ions from being lowered. That is, by rectifying the turbulence on the upstream side where the ion generating device is disposed, it is possible to prevent a decrease in ion generating efficiency and a decrease in ion transporting efficiency.
Further, according to the present invention, the turbulence can be rectified by the throttle portion, and the air flowing in the vicinity of the ion generating device can be rectified to be in a state of less turbulence. Therefore, the same effect as described above can be achieved without using a special device.
In the present invention, when the width of the discharge surface of the ion generating device in the direction perpendicular to the flow is w1 and the width of the air flow path facing the discharge surface is w2, the width is set to 0.7 × w1 ≦ w2 ≦ 1.3 × w1, and preferably w2 ═ w1, whereby ions can be efficiently transported and diffused.
Further, in the present invention, by dividing the air blowing passage by a plurality of passages or air guide plates, the aspect ratio of the air outlet can be easily set to an optimum value without being restricted by the size, and the ions can be uniformly emitted from the air outlet, and the uniform ions can reach a remote place.
Further, the present invention is characterized in that the air blowing passage has an aspect ratio of a cross section gradually changing from a start point to an end point. By appropriately setting the rate of change of the aspect ratio, the attenuation of the wind speed of the jet flow emitted from the outlet port can be suppressed, and therefore, the ion reach can be extended and the ions can be transported over a wide range.
Further, if the aspect ratio magnification and the cross-sectional area magnification are selected to be appropriate values, the diffuser effect can be obtained, and the ion transport capability can be improved.
Further, in the present invention, the aspect ratio AR of the cross section at the end point of the air blowing passage is set to 2. ltoreq. AR.ltoreq.20, or5. ltoreq. AR.ltoreq.22, preferably 5. ltoreq. AR.ltoreq.20, whereby the attenuation of the wind speed of the jet flow sent out from the air outlet can be suppressed, and the ion reach distance can be extended. Therefore, the ion concentration at a relatively distant position can be increased.
Further, the aspect ratio AR of the cross section of the air blowing passage starting point is preferably AR<2.
Further, according to the present invention, by providing the airflow direction changing plate in the vicinity of the air outlet, the ions sent from the ion generating device can be collectively emitted in a desired direction or distributed over a wide range with a simple configuration.
Furthermore, the present invention prevents oil smoke or dust from entering the ion diffusion device through the air filter, and prevents dirt from adhering to the ion generating device, thereby suppressing deterioration of the ion generation amount with time.
According to the present invention, it is possible to realize an ion diffusion device capable of suppressing turbulence or drift generated in the vicinity of an ion generating device by providing a rectifying device or a throttling portion, and capable of improving ion generation efficiency and ion transport efficiency to obtain higher capacity.
Further, according to the present invention, by dividing the air blowing passage by a plurality of passages or air guide plates and setting the widths of the discharge surface of the ion generating device and the air blowing passage to optimum values, it is possible to realize a substantially uniform air velocity and ion concentration at any position of the air outlet of the ion diffusing device.
Drawings
Fig. 1 is a schematic plan sectional view showing a fluid generating apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic side sectional view showing a fluid generating apparatus according to embodiment 1 of the present invention.
Fig. 3 is a diagram showing a flow velocity distribution when the fluid generating apparatus according to embodiment 1 of the present invention is operated.
Fig. 4 is a schematic diagram illustrating the isokinetic core.
Fig. 5 is a diagram showing a relationship between the aspect ratio of the cross section near the blowout port and the length of the constant velocity core at a constant cross-sectional area.
Fig. 6 is a diagram showing a relationship between the aspect ratio of the cross section near the blowout port with a constant height and the length of the constant velocity core.
Fig. 7 is a schematic top sectional view showing a fluid generating apparatus according to embodiment 2 of the present invention.
Fig. 8 is a schematic side sectional view showing a fluid generating apparatus according to embodiment 2 of the present invention.
Fig. 9 is a perspective view showing another fluid generating apparatus according to embodiment 2 of the present invention.
Fig. 10 is a perspective view showing a fluid generating apparatus according to embodiment 3 of the present invention.
Fig. 11 is a schematic plan sectional view showing a fluid generating apparatus according to embodiment 4 of the present invention.
Fig. 12 is a schematic plan sectional view showing the operation of the blowing direction changing plate of the fluid generating apparatus according to embodiment 4 of the present invention.
Fig. 13 is a perspective view of a fan heater according to embodiment 5 of the present invention.
Fig. 14 is a schematic plan sectional view showing an ion diffusion device according to embodiment 6 of the present invention.
Fig. 15 is a schematic side sectional view showing an ion diffusion device according to embodiment 6 of the present invention.
Fig. 16 is a front view of a refrigerator including an ion diffusion device according to embodiment 6 of the present invention.
Fig. 17 is a diagram showing an ion concentration distribution at a position of 1700mm from the floor height in a 8-note (a label is an area unit measured by one tatami in japan) room when the ion diffusion device of the refrigerator including the ion diffusion device according to embodiment 6 of the present invention is operated.
Fig. 18 is a diagram showing a positional relationship between a refrigerator provided with an ion diffusion device according to embodiment 6 of the present invention and measurement points of ion concentration distribution in a room.
Fig. 19 is a schematic plan sectional view showing an ion diffusion device according to embodiment 7 of the present invention.
Fig. 20 is a schematic side sectional view showing an ion diffusion device according to embodiment 7 of the present invention.
Fig. 21 is a perspective view of an ion diffusion device according to embodiment 8 of the present invention.
Fig. 22 is a schematic side sectional view showing an ion diffusion device according to embodiment 9 of the present invention.
Fig. 23 is a schematic side sectional view showing an ion diffusion device according to embodiment 10 of the present invention.
Fig. 24 is a schematic plan sectional view showing an ion diffusion device according to embodiment 11 of the present invention.
Fig. 25 is a schematic plan sectional view showing the operation of the wind direction changing plate of the ion diffusion device according to embodiment 11 of the present invention.
Fig. 26 is a schematic plan sectional view showing an ion diffusion device according to embodiment 12 of the present invention.
Fig. 27 is a schematic plan sectional view showing the operation of the airflow direction changing unit of the ion diffusion device according to embodiment 12 of the present invention.
Fig. 28 is a schematic side sectional view of a refrigerator including an ion diffusion device according to embodiment 13 of the present invention.
Fig. 29 is a schematic side sectional view showing a main part of a fine particle diffusion device according to embodiment 14 of the present invention.
Fig. 30 is a schematic plan sectional view showing a main part of a fine particle diffusion device according to embodiment 14 of the present invention.
Fig. 31 is a schematic side sectional view showing a water vapor diffusion device according to another embodiment of the 14 th embodiment of the present invention.
Fig. 32 is a schematic plan sectional view showing the fluid generating apparatus of comparative example 1.
Fig. 33 is a schematic side sectional view showing the fluid generating apparatus of comparative example 1.
Fig. 34 is a diagram showing a flow velocity distribution when the fluid generating apparatus of comparative example 1 is operated.
Fig. 35 is a front view of a refrigerator provided with the ion diffusion device of comparative example 2.
Fig. 36 is a schematic plan sectional view showing an ion diffusion device of comparative example 2.
Fig. 37 is a diagram showing an ion concentration distribution at a position of 1700mm from the floor height in an 8-year room when the ion diffusion device of the refrigerator including the ion diffusion device of comparative example 2 is operated.
Fig. 38 is a schematic plan sectional view showing an ion diffusion device of comparative example 3.
Fig. 39 is a schematic side sectional view showing an ion diffusion device of comparative example 3.
Fig. 40 is a schematic plan sectional view showing an ion diffusion device of comparative example 4.
Fig. 41 is a schematic plan sectional view showing an ion diffusion device of comparative example 5.
Fig. 42 is a schematic plan sectional view showing an ion diffusion device of comparative example 6.
Fig. 43 is a schematic side sectional view showing an ion diffusion device of comparative example 6.
Description of the reference numerals
1a-1e, 100a fluid generating device
2 fluid delivery device
3 fluid flow channel
3b, 13b expanded pipe section
5 blow-out port
6 guide plate
7 blowing direction changing plate
9a rotating shaft
10 Fan heater
11a-11h, 110a-110e ion diffusion device
12 blower
13 air supply channel
13a throttling part
13c updraft flow channel
14 ion generating device
14a discharge surface
15 diffuser blowing outlet
16 wind deflector
17 rectifying device
19 wind direction changing plate
20a, 20b, 200 refrigerator
21 opening and closing door
22 refrigerator external ion outlet
23 heat releasing part
24 compressor
25 updraft
30 fine particle diffusing device
31 vapor diffusion device
32 steam flow channel
33 steam generating device
Detailed Description
Embodiments of the present invention are described below with reference to the drawings. For convenience of explanation, the same reference numerals are used for the same portions as those of the conventional example, and the same reference numerals are used for the same portions in each embodiment and comparative example.
(embodiment 1)
In the fluid flow passage 3, the upstream portion of the air outlet 5 is formed by the enlarged pipe portion 3b, and the cross-sectional area is smoothly enlarged as the height of the fluid gradually decreases and the width thereof gradually increases toward the air outlet 5. Further, at the beginning of the fluid flow channel 3 immediately behind the fluid delivery device 2, the cross-sectional shape of the enlarged tube portion 3b is set to 45mm in height and 45mm in width, that is, the aspect ratio: AR is 1. In addition, the height 10mm and the width 360mm, i.e., the aspect ratio: AR 36.
Here, the aspect ratio is a ratio between parameters that determine the length of the cross-sectional shape, and is: AR is the value determined by (rectangular parameter)/(short square parameter). Thus, when the cross section is rectangular, the aspect ratio is represented by AR (long side)/(short side), and when the cross section is elliptical, the aspect ratio is represented by AR (long side)/(short side). For example, in the case of a square cross section, the aspect ratio: AR is 1, and in the case of a rectangle with a 2: 1 ratio of long to short sides, the aspect ratio: AR 2, in the case of a circular cross section, aspect ratio: AR is 1. Therefore, the aspect ratio in this specification and the like always takes a value of 1 or more.
Further, a plurality of guide plates 6 are provided in the enlarged tube portion 3b from a portion immediately downstream of the fluid delivery device 2 to a portion slightly upstream of the outlet 5, and the inside of the enlarged tube portion 3b is divided into a plurality of sections by the guide plates 6. In the present embodiment, the expansion duct portion 3b is divided into 4 by 3 guide plates 6, and the divided fluid flow passages 3 are configured such that the aspect ratio gradually increases as they approach the air outlet 5, and the aspect ratio of the end portion of the guide plate 6 that is closer to the air outlet 5 is set to be about 9. The 3-piece guide plate 6 is provided so that the flow velocity distribution of the air outlet 5 in the longitudinal direction is substantially the same at any position. Therefore, the flow velocity distribution in the longitudinal direction directly behind the air outlet 5 is substantially uniform in any portion of the air outlet 5.
FIG. 3 is a view showing a flow velocity distribution in a case where air having a blowing flow velocity of 1.5m/s is blown out as a use example of the fluid generating apparatus 1 a. The boxes in the figure indicate that 1 block is 0.5 m. In addition, even if the fluid sent out from the outlet is a liquid, the same tendency is shown qualitatively. As compared with the use example (see fig. 34) of the fluid generating apparatus 100a of comparative example 1 described later, it is clear that, according to fig. 3: the arrival distance of the fluid sent out from the air outlet 5 is increased, and the fluid having a large flow velocity can be transported to a wide area.
The following describes a mechanism in which the fluid generating apparatus 1a of the present embodiment greatly increases the capacity of the fluid generating apparatus as compared with the fluid generating apparatus 100a of comparative example 1. The flow velocity of the jet stream attenuates immediately after being blown out from the outlet 5. The reach of the jet is related to the length of the isovelocity core of the jet. Fig. 4 is a schematic diagram illustrating the isokinetic core. Generally, the velocity distribution in the center portion of the jet just sent out from the outlet port is the same. The same speed portion is reduced by erosion of the free mixed layer developing from both sides, and disappears at a position at a certain distance. This portion is wedge-shaped and is referred to as the isovelocity core. In the case of the free jet flowing out into the stationary fluid, although the length of the constant velocity kernel varies depending on the shape of the outlet, the state of the boundary layer along the wall surface of the outlet, the initial turbulence, and the like, it is known that the two-dimensional turbulent jet becomes about 5 to 7 times the height or diameter of the outlet, and the axisymmetric turbulent jet becomes about 5 to 8 times the height or diameter of the outlet. As the length of the isokinetic core increases, the reach of the jet increases.
In the fluid generation device 1a of the present embodiment, the aspect ratio of the outlet port 5 is optimized and the constant velocity kernel of the jet flow is extended to suppress the attenuation of the flow velocity, so that the arrival distance of the fluid is significantly extended as compared with the conventional art (comparative example 1). For example, if the height of the air outlet 5 is made constant and the lateral width is set to be infinitely long, as described above, a two-dimensional turbulent jet flow is formed, and the constant velocity kernel length is about 5 to 7 times the height or diameter of the air outlet. Further, for example, if the height and the lateral width of the air outlet are set to be the same (AR ═ 1), the constant velocity kernel length is about 5 to 8 times the height and the lateral width of the air outlet, as in the case of the axisymmetric turbulent jet. If the aspectratio of the air outlet 5 is optimized, for example, if the lateral width is appropriately set with respect to the height of the air outlet 5, the constant velocity kernel length is affected not only by the air outlet height but also by the lateral width of the air outlet, and therefore, the constant velocity kernel length is about 5 to 8 times the average value of the air outlet height and width, and is significantly extended as compared with the case of the two-dimensional turbulent flow jet or the axisymmetric turbulent flow jet at the same air outlet height.
Fig. 5 and 6 are diagrams showing a relationship between an aspect ratio and a constant velocity kernel length of a cross section near the outlet 5 in the fluid generating apparatus 1a of the present embodiment, wherein reference numeral ■ in fig. 5 denotes a value obtained by dividing the constant velocity kernel length when the aspect ratio becomes 1 (the outlet is square) by the constant velocity kernel length when the aspect ratio is changed (outlet width/outlet height) to achieve dimensionless values for a fixed outlet flow velocity, outlet flow rate, and outlet area, reference numeral ○ denotes a value obtained by dividing the constant velocity kernel length when the aspect ratio becomes 1 by the constant velocity kernel length predicted from the outlet height to achieve dimensionless values, and reference numeral ◇ denotes a value obtained by dividing the constant velocity kernel length when the aspect ratio becomes 1 by the constant velocity kernel length predicted from an average value of the outlet height and width to achieve dimensionless values.
The following characteristics are shown according to fig. 5: the actual constant velocity kernel length is approximated to a value predicted from the average value of the height and width of the air outlet until the aspect ratio is about 5, is approximated to a value predicted from the height of the air outlet when the aspect ratio is 30 or more, and is smoothly connected between the two predicted values in a region where the aspect ratio is 5 to 30. According to FIG. 5, the dimensionless constant velocity core length is more advantageous than the aspect ratio of 1 if the aspect ratio is 2 or more, and is less advantageous (2. ltoreq. AR. ltoreq.20) if the aspect ratio is 20 or more.
The reference numeral ■ in fig. 6 indicates a value to be dimensionless by dividing the constant velocity kernel length when the aspect ratio is 1 (the blowout port is square) by the constant velocity kernel length when the aspect ratio is changed by dividing the constant blowout flow rate and the blowout port height, in this case, the blowout port area and the blowout flow rate increase as the aspect ratio increases, from fig. 6, it can be seen that the dimensionless constant velocity kernel length becomes a two-dimensional turbulent jet flow if the aspect ratio reaches 30 or more, further, if the aspect ratio is 1 or more, the dimensionless constant velocity kernel length is more advantageous than the aspect ratio of 1, and if the aspect ratio is 30 or more, the advantage is lost, and it is a case where the dimensionless constant velocity kernel length is 3 or more, and the aspect ratio at that time is 5 ≦ AR 22.
Therefore, a range of 5 ≦ AR ≦ 20 that satisfies both the condition of the range of aspect ratios derived from FIG. 5 (2 ≦ AR ≦ 20) and the condition of the range of aspect ratios derived from FIG. 6 (5 ≦ AR ≦ 22) may be referred to as an optimal aspect ratio. The characteristics in fig. 5 and 6 may have slightly different values or characteristics depending on the type (physical properties) of the fluid, the shape of the outlet, the state of the boundary layer along the wall surface of the outlet, the initial turbulence, and the like.
That is, if the outlet area and the outlet flow velocity are the same, that is, the same flow rate, the constant velocity kernel length, that is, the arrival distance of the fluid can be extended by optimizing the aspect ratio of the outlet 5. In other words, when the same isokinetic core length, that is, the fluid reaching distance is the same, the flow rate can be reduced, and therefore the power consumption and the noise level of the fluid delivery device 2 can be reduced.
It is preferable that the cross-sectional area of the fluid flow channel 3 and the terminal point of the enlarged tube portion 3b is set to be larger than the cross-sectional area of the starting point. In the present embodiment, the fluid flow passage 3 and the enlarged pipe portion 3b are designed to function as diffusers, so that kinetic energy of the fluid can be converted into static pressure, and the capability of the fluid delivery device 2 can be improved, so that the flow rate is increased and noise is reduced as compared with a case where all pressure loss generated when the fluid flows through each portion acts on the fluid delivery device 2.
Further, the aspect ratio of the fluid sending device 2, that is, the aspect ratio of the starting point of the fluid flow path 3 is preferably AR ≦ 2, but when the aspect ratio of the starting point of the fluid flow path 3 is large, the effect similar to the above can be obtained by setting the aspect ratio of the cross section of the ending point of the fluid flow path 3 to 5 ≦ AR ≦ 20, or dividing the fluid flow path 3 by the guide plate 6 and setting the aspect ratio of the cross section of the fluid flow path 3 at the end of the guide plate 6 on the side of the air outlet 5 to 5 ≦ AR ≦ 20.
(embodiment 2)
In the present embodiment, the guide plate 6 of embodiment 1 is not used, and the fluid flow channel 3 is divided into a plurality of expansion pipe portions 3b from the downstream portion immediately downstream of the fluid delivery device 2. In the present embodiment, the fluid flow path 3 is divided into 2 parts in the left-right direction, 2 parts in the up-down direction, and 4 blow-out ports 5 are provided for dividing the fluid flow path into 4 enlarged pipe portions 3b in total. The divided and separated fluid flow passages 3 and the respective expansion pipe portions 3b are configured such that the aspect ratio of the position of the air outlet 5 is set to about 10 as the aspect ratio of the air outlet 5 increases as the air outlet 5 approaches. The other configurations are the same as those of embodiment 1.
The fluid generating apparatus 1b of the present embodiment is different in flow velocity distribution from that of embodiment 1. That is, although the reach distance of the jet flow to the front of the fluid generator 1b is slightly shortened, the transport area of the jet flow in the vertical direction in the space in front of the fluid generator 1b can be enlarged.
The shape of the air outlet 5 is not limited to height<width. Fig. 9 is a perspective view showing another fluid generating apparatus according to the present embodiment. The outlet 5 of the fluid generating apparatus 1c has a shape of height>width, and the fluid flow path 3 is divided into 2 parts in the left-right direction, 2 parts in the up-down direction, and a total of 4 expansion pipe portions 3b, so that 4 outlets 5 are provided. The divided and partitioned fluid flow path 3 and the respective expansion pipe portions 3b are configured such that the aspect ratio of the position of the air outlet 5 is set to about 10 as the aspect ratio gradually increases as the air outlet 5 approaches. The other constitution is the same as that of the fluid generating apparatus 1 b. The fluid generating apparatus 1c has a different flow velocity distribution with respect to the fluid generating apparatus 1 b. That is, the arrival distance of the jet flow toward the front of the fluid generator 1c is equal, the transport area of the jet flow in the vertical direction in the space in front of the fluid generator 1c is greatly enlarged, and the transport area of the jet flow in the left-right direction is reduced.
It is preferable that the aspect ratio of the fluid delivery device 2, that is, the aspect ratio of the beginning of the fluid flow path 3 is AR ≦ 2, but when the aspect ratio of the beginning of the fluid flow path 3 is large, the effect similar to the above can be obtained by setting the aspect ratio of the cross section of the end point of the fluid flow path 3 to 5 ≦ AR ≦ 20, or dividing the fluid flow path 3 by the guide plate 6 and setting the aspect ratio of the cross section of the fluid flow path 3 at the end of the guide plate 6 on the side of the air outlet 5 to 5 ≦ AR ≦ 20.
(embodiment 3)
In the fluid generating apparatus 1d of the present embodiment, the air outlet 5 has a shape of height>width, as in the other embodiments of embodiment 2. The fluid flow path 3 is divided into 7 parts in the left-right direction and 2 parts in the up-down direction, and is divided into 14 enlarged tube portions 3b in total, so that 14 blow-out ports 5 are provided. The divided and partitioned fluid flow path 3 and the respective expansion duct portions 3b are configured such that the aspect ratio increases as the fluid flow path approaches the air outlet 5, and the aspect ratio of the position of the air outlet 5 (the air outlet height/the air outlet width in this case) is set to about 8. The other configurations are the same as those of the other embodiments related to embodiment 2.
In the fluid generating apparatus 1d, the flow velocity distribution is different from that in the other embodiments of embodiment 2. That is, the reach distance of the jet flow to the front of the fluid generator 1d is slightly shortened, the transport area of the jet flow in the vertical direction in the space in front of the fluid generator 1d is substantially equal, and the transport area of the jet flow in the left-right direction is greatly enlarged. That is, the jet flow can be carried over a wide area in the vertical and horizontal directions in front of the fluid generator 1 d.
(embodiment 4)
The fluid generating apparatus 1e of the present embodiment is configured to change the direction of the blowing direction changing plate 9 by adding a plurality of blowing direction changing plates 9 that rotate in conjunction with each other near the blowing port 5 of embodiment 1, and to change the direction of the fluid. The other configurations are the same as those of embodiment 1.
For example, as shown in fig. 12, by changing the directions of the plurality of blowing direction changing plates 9 around the rotation axis 9a, the jet flow can be intensively dispersed in a desired direction or can be dispersed over a wide range. In the case of the fluid generating apparatus 1e of the present embodiment, the influence of the wall surface, the obstacle, or the like can be changed to reduce the influence of the wall surface, the obstacle, or the like to someextent by changing the direction of the blowing direction changing plate 9.
(embodiment 5)
The following describes embodiment 5. Fig. 13 is a perspective view of the fan heater 10 of the present embodiment. The fan heater 10 of the present embodiment includes the fluid generating apparatus 1b of embodiment 2.
Generally, the warm air blown out from the fan heater largely floats due to buoyancy as the wind speed decreases, and therefore the reaching distance becomes shorter. The fan heater 10 of the present embodiment includes the fluid generating device 1b of embodiment 2, and suppresses the attenuation of the wind speed and the upward movement of the warm air, so that the warm air flows along the ground. This greatly improves the comfort of the fan heater, and reduces the amount of air flow, thereby reducing noise.
As another embodiment of embodiment 5, a fluid generation device 1b of a fan heater 10 is changed to a fluid generation device 1a of embodiment 1 shown in fig. 1 and 2. In this case, the flow velocity distribution of the warm air is different from that of embodiment 5. That is, the distance the warm air reaches the front of the fan heater 10 is slightly longer, and the area in which the warm air is transported in the vertical direction in the space in front of the fan heater 10 is reduced.
As another embodiment of embodiment 5, a fluid generating apparatus 1b of a fan heater 10 is changed to another fluid generating apparatus 1c of embodiment 2 shown in fig. 9. In this case, the flow velocity distribution of the warm air is different from that of embodiment 5. That is, the heating air reaches the front of the fan heater 10 at the same distance, and the transport area of the heating air in the vertical direction in the space in front of the fan heater 10 is greatly enlarged, and the transport areaof the heating air in the left and right directions is reduced.
(embodiment 6)
The ion diffusion device 11a of the present embodiment includes a blower 12, an air blowing duct 13, an ion generating device 14 provided with a discharge surface 14a so as to face the air blowing duct 13, and a control unit, not shown. The ions generated by the driving of the ion generator 14 are transported by the driving of the blower 12, circulated through the air duct 13, and emitted to the outside from the diffuser air outlet 15. Further, arrows in fig. 14 and 15 indicate the flow of the air flow at this time.
Further, an external ion blow-out port 22 for the refrigerator, which communicates between the air blow duct 13 and the diffuser blow-out port 15, is provided above an opening/closing door 21 provided on the front surface of the refrigerator 20a, and ions are discharged and diffused to the outside of the refrigerator. Further, an air filter, not shown, is provided upstream of the intake port of the blower 12 in order to prevent oil smoke or dust from entering the ion diffusion device 11 a.
An ion generator 14 capable of generating H+(H2O)nAnd O2 -(H2O)mThe ion (b) can be switched between a mode in which a cation generates more anions than a cation, a mode in which a cation generates more cations than an anion, and a mode in which a cation and an anion are generated at substantially equal proportions, depending on the purpose of use. The generated ions are emitted from the discharge surface 14a of the ion generator 14 into the air duct 13, and are blown out from the diffuser air outlet 15 and the refrigerator outside ion air outlet 22 by the driving of the air blower 12.
In particular, substantially equal amounts of cations (H) are generated by the ion generating device 14+(H2O)nEtc.) and anions (O)2 -(H2O)mEtc.) of the refrigerator, H discharged to the outside of the refrigerator+(H2O)nAnd O2 -(H2O)mAgglutinate on the surface of microorganism, and surround planktonic bacteria such as microorganism in the air. Further, as shown in the formulas (1) to (3), [. OH]as an active species is generated by condensation on the surface of microorganisms or the like by collision](hydroxy) or H2O2(hydrogen peroxide) to sterilize floating bacteria.
…(1)
…(3)
As described above, by discharging cations and anions into the living space outside the refrigerator around the front of the refrigerator 20a, floating bacteria existing in the living space are killed, a sanitary living space is provided, and the invasion of floating bacteria from the outside into the inside of the refrigerator when the opening/closing door 21 is opened and closed is suppressed, whereby a sanitary environment inside the refrigerator can be realized.
The air blowpassage 13 includes a throttle portion 13a and an expansion pipe portion 13 b. In the air blowing passage 13 from the air blower 12 toward the diffuser air outlet 15, the throttle portion 13a is located directly in front of the discharge surface 14a of the ion generating device 14, and the cross-sectional area of the air blowing passage 13 communicating with the air blower 12 is smoothly reduced in the throttle portion 13a as approaching the discharge surface 14a of the ion generating device 14. The throttle 13a rectifies turbulence of air flowing in the vicinity of the discharge surface 14a of the ion generating device 14, and suppresses flow deviation, so-called drift current, generated downstream of the blower 12.
Further, when the width of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow is w1 and the width of the air blowing duct 13 facing the discharge surface 14a is w2, w2 is set to w 1. Therefore, the ion concentration in the air blowing passage 13 downstream of the ion generating device 14 becomes substantially uniform in a plane perpendicular to the flow direction.
Here, if w2>1.3 × w1 is set, it is not preferable because the ion concentration varies in the direction perpendicular to the flow. In particular, when the center of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow and the center of the air blowing passage 13 facing the discharge surface 14a are aligned at the same position, the ion concentration is high near the center of the diffuser air outlet 15, and the ion concentrations are low at both ends. Further, if the discharge surface 14a is configured to be close to the air flow path 13 side, only one side of the diffuser air outlet 15 has a high ion concentration, and the other side has a low ion concentration.
Further, if w2<0.7 × w1, the ions emitted from the discharge surface 14a are not carried by the gas flow, which is not efficient. Therefore, by setting 0.7 × w1 ≦ w2 ≦ 1.3 × w1, preferably w2 ═ w1, ions can be efficiently transported and diffused.
The portion from the ion generator 14 to the diffuser blowout port 15 is constituted by the expanded pipe portion 13b, and the cross-sectional area is configured to be smoothly expanded from the ion generator 14 toward the diffuser blowout port 15. The cross-sectional shape of the enlarged tube portion 13b immediately behind the ion generating device 14 is: height 10mm, width 30mm, aspect ratio: AR is 3, and the diffuser blowout port 15, which is the end point of the expanded pipe portion 13b, is set to have a height of 8mm and a width of 450mm, that is, an aspect ratio: AR 56.
Furthermore, a plurality of air deflectors 16 are provided in the expanded pipe portion 13b from a portion immediately downstream of the ion generating device 14 to a portion slightly upstream of the diffuser blowout port 15, and the inside of the expanded pipe portion 13b is divided into a plurality of air deflectors 16. In the present embodiment, the expanded duct portion 13b is divided into 7 parts by 6 air deflectors 16, and each of the divided air blowing ducts 13 has an aspect ratio that increases as it approaches the diffuser air outlet 15, and the aspect ratio of the end portion of the air deflector 16 that is closer to the diffuser air outlet 15 is set to about 8. The 6 air deflectors 16 are set so that the air velocity distribution in the longitudinal direction of the diffuser air outlet 15 is substantially the same at every position. Therefore, the ion concentration in the downstream portion of the diffuser blowout port 15 is substantially uniform in a plane perpendicular to the flow direction.
Further, the enlarged pipe portion 13b is inclined downward as it approaches the diffuser blowout port 15. That is, ions aresent out downward from the ion outlet 22 outside the refrigerator with respect to the horizontal plane. In the present embodiment, since the ion blow-out port 22 is provided at a position approximately 1700mm from the floor surface, ions can be efficiently diffused into the space outside the refrigerator by sending out the ions downward with respect to the horizontal plane. Further, since microorganisms such as floating bacteria present in the space around the refrigerator sink down with time by gravity and accumulate in the lower part of the space, these microorganisms can be sterilized efficiently by sending ions downward with respect to the horizontal plane. In particular, in the case of the present embodiment, since ions can be effectively scattered from a position 1300mm in height from the ground to a position 1500mm, it is possible to effectively suppress the user from inhaling microorganisms such as viruses into the body by breathing.
FIG. 17 shows a room at room temperature of 15 ℃,the ion diffusion device 11a of the present embodiment is provided in the refrigerator 20, and the ion diffusion device is discharged from the ion outlet 22 to the inside of the refrigerator as H+(H2O)nAnd O2 -(H2O)mThe ion concentration of each part of the room in the case of (2) ions (so-called ion clusters).Fig. 18 is a diagram showing a positional relationship between the refrigerator of the present embodiment and measurement points of the ion concentration distribution in the room. The room size was 8 posts (height 2400mm, lateral width 3600mm, depth 3600mm), and the measurement point was a cross section at a height of 1700mm from the floor of the room as indicated by a one-dot chain line in FIG. 18. At this time, the air velocity of the ion outlet 22 outside the refrigerator is substantially uniform at 1.5m/s at any position in the longitudinal direction of the outlet, and the arrows in fig. 18 showthe flow at this time. Further, the noise level at 1m in front of the refrigerator at this time was 22 dB.
Furthermore, the cation concentration was 2000 pieces/cm3Above, and the anion concentration is 2000 pieces/cm3In this case, the above-mentioned bactericidal effect was confirmed.
Although this is clear when compared with the ion diffusion device 110a of comparative example 2 described later, it is clear from fig. 17 that the ions blown out from the ion blow-out port 22 outside the refrigerator reach the end of the room. Further, the ion concentration at the position 10mm in front of the ion outlet 22 outside the refrigerator of the present embodiment is about 1 ten thousand/cm3Unlike comparative example 2, the high concentration ions did not stagnate near the outlet. In the region of about 60% or more of the 8-poster room, the cation concentration was 2000/cm3Above, and the anion concentration is 2000 pieces/cm3The above ion concentrations clearly show that the region exhibiting the bactericidal effect is much larger than that of comparative example 2.
The following describes a mechanism of the ion diffusion device 110a of the present embodiment in which the ion diffusion capability is greatly improved as compared with the ion diffusion device 110a of comparative example 2. In the case of the expansion duct portion 13b designed to function as a diffuser, the kinetic energy of the air flow can be converted into static pressure, and the blowing performance of the blower 12 can be improved, so that the blowing amount is increased and the blower noise is reduced, as compared with a case where all the pressure loss generated in the air filter, the throttle portion 13a, and the other blowing passages 13, which are not shown, are applied to the blower 12. Therefore, since ions were carried by the airflow having a larger air volume than in comparative example 2, the diffusion efficiency was greatly improved. The air volume of the ion diffusion device 110a was about 2 times that of comparative example 2, and the noise level at 1m in front of the refrigerator 29a was 22dB as in comparative example 2.
In the second embodiment, the restriction 13a rectifies the disturbance of the air flowing in the vicinity of the discharge surface 14a of the ion generator 14, and suppresses the flow deviation, i.e., the so-called drift current, generated downstream of the blower 12, thereby significantly suppressing the disturbance of the air flow as compared with the comparative example 2. Ions are destroyed by losing charge by impacting walls or other obstacles. Further, in the case where the ion generating means 14 generates both the cations and the anions at approximately equal proportions, the ions are extinguished by the collision of the cations and the anions. That is, if the air flow is disturbed, the amount of ion extinction by the collision of the obstacle with the ions and/or ions is large, and if the air flow is rectified, the amount of ion extinction by the collision of the obstacle with the ions and/or ions is reduced, and therefore the ion lifetime is lengthened. In comparative example 2, the time for the ion concentration to decay to 1/e was about 3 seconds, whereas in the present embodiment, the time for the ion concentration to decay to 1/e was extended to about 5 seconds.
In the case of the 3 rd ion generator, since the air flowing in the vicinity of the discharge surface 14a of the ion generator 14 is prevented from being disturbed or deviated, the air flowing in the vicinity of the discharge surface 14a of the ion generator 14 is uniform. This increases the ion generation efficiency on the discharge surface 14a of the ion generator 14. That is, a desired amount of ion generation can be ensured at a low voltage or a low air volume, which is also advantageous in terms of noise.
In the case of the 4 th aspect, the positional relationship between the air blowing duct 13 and the ion generating device 14 is set so that the width of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow is equal to the width of the air blowing duct 13 facing the discharge surface 14a, whereby the dispersion of the ion concentration in the direction perpendicular to the flow can be suppressed, the ion concentration in the air blowing duct 13 downstream of the ion generating device 14 is substantially uniform in the plane perpendicular to the flow, and the ions can be efficiently carried in the air flow. Therefore, the ions can be efficiently transported and diffused.
In the case of 5 th, the wind speed is suppressed from being attenuated by optimizing the aspect ratio of the outlet and extending the constant velocity kernel of the jet flow, and therefore the reaching distance of the airflow is significantly extended as compared with comparative example 2. The description of the isokinetic core and the mechanism and effect of extension of the airflow reaching distance by extension of the isokinetic core are the same as those of embodiment 1. Therefore, if the outlet area and the outlet air speed are the same, i.e., the same air volume, the constant velocity kernel length, i.e., the airflow reaching distance, can be extended by optimizing the aspect ratio of the outlet. In other words, since the air volume can be reduced when the same constant velocity kernel length, that is, the airflow reaching distance, is the same, the power consumption and noise level of the blower 12 can be reduced.
(7 th embodiment)
Embodiment 7 will be described below. Fig. 19 is a schematic cross-sectional plan view showing the ion diffusion device according to the present embodiment. Fig. 20 is a schematic side sectional view showing an ion diffusion device of the present embodiment.
In the present embodiment, the flow regulating device 17 is provided in the air blowing passage 13 upstream of the discharge surface 14a of the ion generating device 14, instead of the throttle portion 13a of embodiment 6. Accordingly, since the turbulence of the air flowing in the vicinity of the discharge surface 14a of the ion generating device 14 can be rectified, the effect of the throttle portion 13a in embodiment 6 can be obtained, and the pressure loss generated in the throttle portion 13a in embodiment 6 can be eliminated, and the pressure loss generated in the air blowing passage 13 can be reduced, so that the air volume of the blower 12 can be increased and/or the noise of the blower 12 can be reduced. Instead of using the air guide plate 16 of the expansion duct portion 13b, the air duct 13 is divided into a plurality of expansion duct portions 13b from a portion immediately downstream of the ion generating device 14. In the present embodiment, the air blowing duct 13 is divided into 5 parts in the left-right direction, 3 parts in the up-down direction, and 15 diffuser blow-out ports 15 are provided in order to divide the duct into 15 enlarged pipe portions 13b in total. The divided air blowing duct 3 and the respective expansion duct portions 3b are configured such that the aspect ratio increases as they approach the air outlet 5, and the aspect ratio of each air blowing duct at the diffuser air outlet 5 is set to about 8.
The other structure is similar to embodiment 6, and similar to embodiment 6, the air blowing duct 13 and diffuser air outlet 15 communicate with an external ion outlet 22 provided at an upper portion of an opening/closing door 21 provided at a front surface of a refrigerator 20a, and the air blowing duct is configured to discharge and diffuse ions to the outside of the refrigerator.
The present embodiment differs from embodiment 6 in the distribution of ions. That is, since the air volume is increased by the decrease in the pressure loss of the air duct 13, the diffusion distance of the ions toward the front of the refrigerator is slightly increased, the ion concentration in the vertical direction in the space in front of the refrigerator is more uniform, and the ion concentration in the lower part in front of the refrigerator can be increased.
The shapes of the diffuser air outlet 15 and the refrigerator external ion air outlet 22 are not limited to height<width.
(embodiment 8)
The following describes embodiment 8. Fig. 21 is a perspective view showing an ion diffusion device according to the present embodiment.
In the present embodiment, the air blowing duct 13 and the diffuser air outlet 15 in embodiment 7 are formed in the same manner as the fluid flow duct 3 and the air outlet 5 of the fluid generating device 1d in embodiment 3. Therefore, the diffuser air outlet 15 has a shape of height>width, and the air duct 13 is divided into 7 parts in the left-right direction and 2 parts in the up-down direction, and is divided into 14 expanded duct portions 13b in total, and as a result, 14 diffuser air outlets 15 are provided. The divided air flow path 3 and the respective expansion duct portions 3b are configured such that the aspect ratio increases as they approach the air outlet 5, and the aspect ratio (air outlet height/air outlet width in this case) of each air flow path at the position of the diffuser 5 is set to about 8.
The other structure is similar to embodiment 7, and similar to embodiment 7, the air blowing duct 13 and diffuser air outlet 15 communicate with an external ion outlet 22 provided at an upper portion of an opening/closing door 21 provided at a front surface of a refrigerator 20a, and the air blowing duct is configured to discharge and diffuse ions to the outside of the refrigerator.
The present embodiment differs from embodiment 6 in the distribution of ions. That is, although the distance over which ions are diffused toward the front of the refrigerator and the ion diffusion region in the left-right direction in the space in front of the refrigerator are slightly reduced, the ion diffusion region in the up-down direction in the space in front of the refrigerator is greatly expanded, the ion concentration in the up-down direction is more uniform, and the ion concentration in the lower portion in front of the refrigerator can be increased. That is, ions can be diffused over a wide range in the vertical and horizontal directions in front of the ion diffusion device 11 c.
(embodiment 9)
The following describes embodiment 9. Fig. 22 is a schematic side sectional view showing an ion diffusion device of the present embodiment.
In the present embodiment, the rectifying device 17 of embodiment 7 is not used, and the arrangement of the ion generating device 14 is different, and the shape of the air blowing duct 13 near the ion generating device 14 and the flow of air are different. The discharge surface 14a of the ion generating device 14 is located at a position that blocks the flow of the air sent from the air blower 12, and the air sent from the air blower 12 hits the discharge surface 14a of the ion generating device 14, and the air containing ions generated from the discharge surface 14a flows out from the side of the ion generating device 14 to the air blowing passage 13, thereby obtaining a rectifying effect. The other configurations are the same as those of embodiment 7.
In the ion diffusion device 11d of the present embodiment, when the air sent from the blower 12 hits the discharge surface 14a of the ion generating device 14, since the drift current is suppressed, the substantially same effect as that of embodiment 7 can be obtained regardless of whether or not the rectifying device 17 is not used, which is advantageous in terms of cost.
(embodiment 10)
The following describes embodiment 10. Fig. 23 is a schematic side sectional view showing an ion diffusion device of the present embodiment.
In the present embodiment, the rectifying device 17 of embodiment 7 is not used, and the arrangement of the ion generating device 14 is different, and the shape of the air blowing duct 13 near the ion generating device 14 and the flow of air are different. The discharge surface 14a of the ion generating device 14 is located at a position to block the flow of the air sent from the air blower 12, and the air sent from the air blower 12 hits the discharge surface 14a of the ion generating device 14, and includes ions generated from the discharge surface 14a, and flows out from both the upper and lower sides of the ion generating device 14 to the air blowing passage 13, thereby obtaining a rectifying effect. The other configurations are the same as those of embodiment 7.
In the ion diffusion device 11e of the present embodiment, when the air sent from the blower 12 hits the discharge surface 14a of the ion generating device 14, since the drift current is suppressed, the substantially same effect as that of embodiment 7 can be obtained regardless of whether or not the rectifying device 17 is not used, which is advantageous in terms of cost.
(embodiment 11)
The following describes embodiment 11. Fig. 24 is a schematic plan sectional view of the ion diffusion device of the present embodiment.
The ion diffuser 11f of the present embodiment is configured such that the direction of the air direction changing plate 19 is changed by adding a plurality of air direction changing plates 19 that rotate in conjunction with each other near the diffuser air outlet 15 of embodiment 6, and the direction of the ions blown out is changed. The other configurations are the same as those of embodiment 6.
In the present embodiment, as shown in fig. 25, for example, by changing the direction of the plurality of wind direction changing plates 9 around the rotation shaft 19a, ions can be dispersed in a desired direction in a concentrated manner or in a wide range. In the case of the apparatus having the ion diffusion device 11f, there may be a case where ions cannot be efficiently diffused due to the influence of the wall surface, the obstacle, or the like, depending on the installation place of the apparatus, but in the case of the ion diffusion device 11f of the present embodiment, the influence of the wall surface, the obstacle, or the like can be reduced to some extent by changing the direction of the wind direction changing plate 19.
(embodiment 12)
The following describes embodiment 12. Fig. 26 is a schematic plan sectional view of the ion diffusion device of the present embodiment.
The ion diffusion device 11g of the present embodiment omits the air guide plate 16 of embodiment 6, and adds an air direction changing unit 19b to the enlarged pipe portion 13 b. The airflow direction changing unit 19 is configured to integrally mold 3 plate-like members having the air guide plate function, and is rotatable about a rotation shaft 19a, and the direction of the airflow direction changing unit 19b is changed to change the blowing direction of the ions. The other configurations are the same as those of embodiment 6.
In the present embodiment, for example, as shown in fig. 27, by changing the rotation angle of the airflow direction changing unit 19b, it ispossible to switch the blowing of ions into blowing into a wide range to one side only. That is, the direction can be switched to 3 kinds of ion blowing directions in the case of blowing ions over a wide range, the case of blowing ions only to one side, and the case of blowing ions only to the other side.
Further, since the number of movable parts is smaller than that of the ion diffusion device 11f according to embodiment 11 and the number of parts can be reduced, the ion diffusion device is advantageous in terms of cost and reliability.
(embodiment 13)
In the ion diffusion device 11h of the present embodiment, the blower 12 of embodiment 6 is omitted, and the updraft passage 13c as a part of the blower passage 13 is disposed so as to cover the heat radiating portion 23 disposed on the rear surface and/or the side surface of the main body of the refrigerator 20 b. The other configurations are the same as those of embodiment 6.
When the refrigerator 20b of the present embodiment is operated, the ascending air current 25 is generated in the ascending air current flow passage 13c by the heat radiation from the compressor 24 of the refrigerator 20b and the heat radiation from the heat radiation section 23, and ascends to the upper portion of the refrigerator 20b as shown in fig. 28, and the heat radiation section 23 is disposed on the rear surface and/or the side surface of the main body of the refrigerator 20b and radiates the heat of the heat exchanger, not shown, to the outside of the refrigerator. The upward airflow 25 flows along the air flow path 13 on the top surface of the refrigerator 20b, contains ions when passing through the ion generating device 14, and is discharged from the diffuser air outlet 15 and the refrigerator outside ion air outlet 22 to be diffused outside the refrigerator.
In the present embodiment, not only the blower 12 can be omitted, but also dominant blowing noise generated from the blower 12 can be eliminated, so that a significant reduction in noise can be achieved. Further, the ascending of the ascending air current may be assisted by a not-shown circulation fan generally provided near the compressor 24. Further, the same effect as described above can be obtained by using the ion generating device 14 that generates the ion wind near the discharge surface 14a and blowing the ion wind generated by the ion generating device 14.
(embodiment 14)
The following describes embodiment 14. Fig. 29 is a schematic side sectional view showing a main part of the fine particle diffusion device according to the present embodiment, and fig. 30 is a schematic top sectional view showing a main part of the fine particle diffusion device according to the present embodiment. The fine particle diffusing device 30 of the present embodiment is mainly composed of a blower 12, an air duct 13, and a control unit, not shown, and fine particles are transported by the drive of the blower 12, circulated through the air duct 13, and discharged to the outside from a diffuser air outlet 15. The air blow passage 13 includes a throttle portion 13a and an expansion pipe portion 13 b.
The throttle portion 13a is configured such that the air blowing passage gradually decreases in height and gradually increases in width, and gradually decreases in cross-sectional area. The portion from the throttle portion 13a to the diffuser air outlet 15 is constituted by an enlarged pipe portion 13b, and the cross-sectional area is configured to be smoothly enlarged toward the diffuser air outlet 15. Specifically, the starting point positionof the throttle portion 13a is set to have a height of 12mm and a width of 30mm, i.e., an aspect ratio: AR is 2.5, and the height 8mm and the width 40mm, i.e., the aspect ratio: AR is 5, and the height 8mm and the width 450mm, i.e., the aspect ratio, are set at the end point of the expanded pipe portion 13b, i.e., the diffuser blowout port 15 portion: AR 56.
Furthermore, a plurality of air deflectors 16 are provided in the expanded pipe portion 13b from the immediately downstream portion of the throttle portion 13a to a portion slightly upstream of the diffuser air outlet 15, and the expanded pipe portion 13b is divided into a plurality of air deflectors 16. In the present embodiment, the expanded duct portion 13b is divided into 7 parts by 6 air guide plates 16, and the divided air blowing ducts 3 are configured such that the aspect ratio gradually increases as they approach the diffuser air outlet 15, and the aspect ratio of the end portion of the air guide plate 16 closer to the diffuser air outlet 15 is set to about 8. Since the 6 air deflectors 16 are set so that the air velocity distribution in the longitudinal direction of the diffuser blowout port 15 is substantially the same at any position, the ion concentration in the downstream portion of the diffuser blowout port 15 is substantially uniform in the plane perpendicular to the flow direction.
The air blowing system is provided with a fine particle generator for generating desired fine particles. The setting position is preferably a or B position shown in fig. 29 and 30. That is, the position a is further upstream of the blower 12, and when the fine particle generating device is provided at this position, the fine particles are uniformly mixed in the air by the mixing capability of the blower 12. The B position is located at the throttle part 13a or a downstream part immediately downstream of the throttle part 13a, and when the fine particle generating device isdisposed at this position, the fine particles are uniformly mixed in the air by the flow regulating effect of the throttle part 13 a.
Examples of the fine particles include particles having a charge called a cation, an anion, or an ionic group; various molecules called active radicals, atoms, oxygen molecules, water molecules (water vapor); micro particles, aromatic components and medicinal components with bactericidal effect; clean air after pollen or dust, etc. are cleaned by the air cleaning device; and other fine particles that diffuse into the air to exert their effect.
According to the present embodiment, the fine particles can be diffused over a wide range as in embodiment 6. Further, a rectifying device or a rectifying portion may be provided instead of the throttle portion 13 a. The same effect can be obtained by dividing the air blowing duct 13 instead of the air guide plate 16, and setting the aspect ratio of about 8 at the end of each air blowing duct 13, that is, at the diffuser blow-out port 15 where a plurality of air blowing ports are provided.
Next, another embodiment of the present embodiment will be described. Fig. 31 is a schematic side sectional view showing a water vapor diffusion device 31 mounted on a humidifier or the like as an example of the fine particle diffusion device of the present embodiment. The steam diffuser 31 of the present embodiment is the fine particle diffuser 30 described above, and is additionally provided with a steam outlet 32 at a position B shown in fig. 29 and 30, and is provided with a steam flow passage 33 and a steam generator 34 which communicate with the steam outlet 32. The steam generator 34 is constituted by, for example, a water tank, not shown, and a heater for heating water in the water tank to generate steam. According to the present embodiment, as in embodiment 14, the water vapor can be diffused over a wide range.
In the refrigerator of the present invention, the refrigerator top plate may be provided with an external ion outlet 22. According to this configuration, the fine particles exhibiting the bactericidal action can be spread further, and the space in which microorganisms such as floating bacteria present in the space around the refrigerator can be sterilized can be enlarged, so that the floating bacteria can be prevented from entering the inside of the refrigerator from the outside of the refrigerator when the opening/closing door is opened and closed, and a more sanitary environment in the refrigerator can be achieved.
The embodiments have been described above, but the present invention is not limited to the above embodiments, and can be implemented by adding appropriate modifications without departing from the scope of the present invention. Further, the ion diffusion device and the fine particle diffusion device can be mounted not only on a refrigerator but also on all devices to obtain the same effects as described above.
Comparative example 1
A comparative example for comparison with embodiment 1 will be described. Fig. 32 is a schematic top sectional view showing the fluid generating apparatus of comparative example 1, and fig. 33 is a schematic side sectional view showing the fluid generating apparatus of comparative example 1. The fluid generating apparatus 100a of comparative example 1 includes a fluid delivery device 2, a fluid flow path 3, an air outlet 5 that generates a jet flow, and a control unit, not shown. The fluid is transported by the driving of the fluid delivery device 2, flows through the fluid flow path 3, and is discharged to the outside as a jet from the air outlet 5. In addition, the arrows in the drawing indicate the flow of the fluid.
Fig. 34 is a view showing a flow velocity distribution when air having a blowing flow velocity of 1.5m/s is sent out from an air outlet having a shape with a height of 60mm and a width of 60mm as a use example of the fluid generation device 100 a. The boxes in the figure indicate that 1 block is 0.5 m. The same tendency is also expressed even when the fluid sent out from the outlet is a liquid. As is clear from fig. 34, the fluid generating apparatus 100a of comparative example 1 has a problem that the arrival distance of the jet is short.
Further, it can be seen that the fluid generating apparatus 100a of comparative example 1 has a problem that it is not suitable for transporting a fluid to a wide range. In general, the shape of the outlet port of the fluid generating apparatus of the related art is relatively large with a low aspect ratio, and the jet flow blown out from such an outlet port is difficult to spread over a wide range, and the flow velocity is greatly reduced even if the jet flow spreads.
Comparative example 2
Comparative example 2 for comparison with embodiment 6 will be described. Fig. 35 is a front view of a refrigerator including the ion diffusion device of comparative example 2, and fig. 36 is a schematic plan sectional view showing the ion diffusion device of comparative example 2. The refrigerator 200 of comparative example 2 in fig. 35 is provided with the ion diffusion device 110a of comparative example 2 at the top plate portion.
The ion diffusion device 110a of comparative example 2 includes a blower 12, a stack passage 13, an ion generating device 14 provided with a discharge surface 14a facing the blower passage 13, and a control unit, not shown. The ions generated by the driving of the ion generator 14 are transported by the driving of the blower 12, circulated through the air duct 13, and emitted to the outside from the diffuser air outlet 15. In fig. 36, arrows indicate the flow of air at this time. Further, an external ion blow-out port 22 for the refrigerator is provided above the opening/closing door 21 of the refrigerator 200, the air blow-out port 15 communicating with the air duct 13, and ions are discharged and diffused to the outside of the refrigerator. Further, an air filter, not shown, is provided upstream of the air inlet of the blower 12 of the ion diffusion device 110a in order to prevent oil smoke or dust from entering the ion diffusion device 110 a.
An ion generator 14 capable of generating H+(H2O)nAnd O2 -(H2O)mThe ion of (2). The generated ions are discharged from the discharge surface 14a of the ion generator 14 into the air duct 13, and are blown from the diffuser air outlet 15 and the outside of the refrigerator by the driving of the air blower 12The outlet 22 blows out of the refrigerator.
As described above, by discharging cations and anions to the living space outside the refrigerator 200 around the front side thereof, floating bacteria existing in the living space are killed, a sanitary living space is provided, and the invasion of floating bacteria from the outside into the inside of the refrigerator is suppressed when the opening/closing door 21 is opened and closed, whereby a sanitary in-box environment can be realized.
FIG. 37 is a view showing that H is emitted from the ion diffusion device 110a of comparative example 2 into the room at room temperature of 15 ℃ from the ion outlet 22 outside the refrigerator 200 of the refrigerator+(H2O)nAnd O2 -(H2O)mThe ion concentration of each part of the room in the case of (2) ions (so-called ion clusters). The room size was 8 posts (height 2400mm, lateral width 3600mm, depth 3600mm), and the measurement point was a cross section at a height of 1700mm from the floor of the room as indicated by a one-dot chain line in FIG. 18. The air velocity of the ion blow-out port 22 outside the refrigerator at this time was 1.5 m/s. Further, the noise level at 1m in front of the refrigerator at this time was 22 dB. The method of controlling the ion generating device 14 in this case is the same as that of embodiment 6.
According to fig. 37, although high-concentration ions are present around the ion outlet 22 outside the refrigerator, the region is narrow and may not necessarily be sufficient. The ion concentration at the position 10mm in front of the ion outlet 22 outside the refrigerator of comparative example 2 was about 10 ten thousand/cm3Although sufficient ions are generated from the ion generator 14, the ions stay at a high concentration near the outlet and do not spread throughout the room. That is, it is found that the refrigerator 200 including the ion diffusion device 110a of comparative example 2 has a problem that the ion diffusion capability is low with respect to the amount of generated ions.
In order to expand the region where the ion concentration is high, the rotation speed of the blower 12 of the ion diffusion device 110a may be increased, but this causes a problem that the blowing noise is significantly increased. Further, in order to expand the region where the ion concentration is high, the amount of ions generated by the ion generator 14 may be increased, but in this case, it is necessary to greatly increase the voltage applied to the ion generator 14, and there are problems that the ion generation noise is increased and the amount of ozone generated simultaneously with the ions is drastically increased.
Although the same devices as the ion diffusion device 110a and/or the ion generating device 14 of comparative example 2 are mounted on many household electric appliances, they all have a problem of low ion diffusion capability as described above.
Comparative example 3
Comparative example 3 for comparison with embodiment 6 will be described. Fig. 38 is a schematic plan sectional view showing an ion diffusion device of comparative example 3, and fig. 39 is a schematic side sectional view showing the ion diffusion device of comparative example 3.
In the ion diffusion device 110b of comparative example 3, the throttle part 13a of embodiment 6 is not used. Therefore, although the pressure loss of the air duct 13 is reduced, the turbulence of the air flowing in the vicinity of the discharge surface 14a of the ion generating device 14 cannot be rectified, and the flow deviation, so-called drift, generated downstream of the air blower 12 cannot be suppressed. That is, the increase in the probability of collision between ions due to the turbulence of the air flow increases the amount of annihilation of ions and shortens the lifetime of ions, and the turbulence or deviation of the air flow makes the air flowing near the discharge surface 14a different, which lowers the ion generation efficiency on the discharge surface 14a of the ion generator 14. That is, not only a higher voltage or a larger air volume is required to secure a desired ion generation amount, but also noise is disadvantageous. Further, since the deviated airflow flows through the expanded pipe portion 13b including ions and is sent out from the diffuser blowout port 15, the air velocity distribution in the longitudinal direction of the diffuser blowout port 15 also varies. Therefore, the ion concentration at the downstream portion of the diffuser blowout port 15 also varies in a plane perpendicular to the flow direction, and the ion diffusion capability is lowered.
Comparative example 4
Comparative example 4 will be described for comparison with embodiment 6. Fig. 40 is a schematic top sectional view showing an ion diffusion device of comparative example 4, and a schematic side sectional view is completely the same as embodiment 6 shown in fig. 15.
The ion diffusion device 110c of comparative example 4 is different from the ion diffusion device 11a of embodiment 6 in the shape and arrangement of the discharge surface 14a and the air flow path 13 in the vicinity thereof. When the width of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow is w1 and the width of the air blowing duct 13 facing the discharge surface 14a is w2, w2 is set to 2 × w1, and the center of the discharge surface 14a of the ion generating device 14 in the direction perpendicular to the flow and the center of the air blowing duct 13 facing the discharge surface 14a are aligned at the same position. Therefore, dispersion of ion concentration occurs in the direction perpendicular to the flow, and the ion concentration is high near the center of the diffuser outlet 15 and low at both ends. In particular, when the air sent from the blower 12 deviates greatly and the airflow flows along one of the left and right wall surfaces of the air flow duct 13, the air speed of the diffuser air outlet 15 on the downstream side along the flowing wall surface becomes high, and the air speed becomes low at a position other than the diffuser air outlet 15. Therefore, the ion concentration in the downstream region of the portion where the wind speed is low is reduced, and the air flow having a high wind speed does not pass through the discharge surface 14a of the ion generating device 14, so that the ion generating efficiency is also greatly reduced, and the ion diffusing capability is reduced.
Comparative example 5
Comparative example 5 will be described for comparison with embodiment 6. Fig. 41 is a schematic top sectional view showing an ion diffusion device of comparative example 5, and a schematic side sectional view iscompletely the same as embodiment 6 shown in fig. 15.
Ion diffusion device 110d of comparative example 5 does not use air guide plate 16 of ion diffusion device 11a of embodiment 6. Therefore, the airflow is separated from the left and right wall surfaces of the expanded pipe portion 13b, the diffuser effect cannot be obtained, and a vortex region is generated in the region C shown in fig. 41, which lowers the air blowing efficiency. Further, since the airflow does not spread over a wide range in the left-right direction but flows in the vicinity of the center portion of the diffuser blowout port 15 in a biased manner, the ions are not spread over a wide range in the left-right direction but are distributed only in one direction. Further, since the aspect ratio of the diffuser air outlet 15 is not optimized, the reaching distance of the airflow is also shortened. Therefore, the diffusion capability of the ions is reduced.
Comparative example 6
Comparative example 6 will be described for comparison with embodiment 6. Fig. 42 is a schematic plan sectional view showing an ion diffusion device of comparative example 6, and fig. 43 is a schematic side sectional view showing the ion diffusion device of comparative example 6.
The ion diffusion device 110e of comparative example 6 is configured such that the installation position of the ion generating device is further changed from that of comparative example 3. That is, in comparative example 3, the longitudinal direction of the ion generating device 14 is arranged perpendicular to the flow of the air current, whereas in comparative example 6, the ion generating device 14 is arranged on the right side wall of the expansion pipe portion 13b while the longitudinal direction of the ion generating device 14 is parallel to the flow of the air current. Therefore, there are the following problems corresponding to the arrangement of comparative example 3: the ion concentration sent out from the right side of the diffuser blowout port 15, which is downstream of the right side wall of the expanded pipe portion 13b where the ion generator 14 is arranged, becomes high, and the ion concentration sent out from the left side and the central portion of the diffuser blowout port 15 becomes low. That is, since the ions are distributed only in one direction (right direction) without being diffused in a wide range in the left-right direction, the diffusion ability of the ions is lowered.
Industrial applicability
The ion diffusion device of the present invention can be effectively used as a diffusion device for ion clusters exhibiting a bactericidal action, and can be mounted on various household electric appliances such as refrigerators.
Claims (17)
1. An ion diffusion device is provided with: an ion generating device for generating ions from the discharge surface; an air supply passage for conveying ions generated from the ion generating device; and an air outlet formed at the end of the air blowing passage and emitting ions,
a rectifying device for rectifying the flow of ions is provided in the air blowing passage on the upstream side of the ion generating device.
2. An ion diffusion device is provided with: an ion generating device for generating ions from the discharge surface; an air supply passage for conveying ions generated from the ion generating device; and an air outlet formed at the end of the air blowing passage and emitting ions,
a throttle portion having a locally reduced cross-sectional area is provided on the upstreamside of the ion generating device or on the air blowing passage parallel to the ion generating device.
3. An ion diffusion device is provided with: an ion generating device for generating ions from the discharge surface; an air supply passage for conveying ions generated from the ion generating device; and an air outlet formed at the end of the air blowing passage and emitting ions,
when the width of the discharge surface in the direction perpendicular to the flow of ions is w1 and the width of the air blowing passage facing the discharge surface is w2,
then 0.7 xw 1 ≦ w2 ≦ 1.3 xw 1.
4. The ion diffusion device according to claim 3, wherein a wind deflector is provided to partition the air supply passage.
5. The ion diffusion device according to claim 3, wherein the air supply passage is divided into a plurality of passages.
6. An ion diffusion device is provided with: an ion generating device for generating ions from the discharge surface; an air supply passage for conveying ions generated from the ion generating device; and an air outlet formed at the end of the air blowing passage and emitting ions,
when the width of the discharge surface in the direction perpendicular to the flow of ions is w1 and the width of the air blowing passage facing the discharge surface is w2,
then w1 ═ w 2.
7. The ion diffusion device according to claim 6, wherein a wind deflector is provided to partition the air supply passage.
8. The ion diffusion device according to claim 6, wherein the air supply passage is divided into a plurality of passages.
9. The ion diffusion device according to any one of claims 1 to 8, wherein the air supply passage has a cross-sectional aspect ratio that gradually changes from a start point to an end point.
10. The ion diffusion device according to any one of claims 1 to 8, wherein the air supply passage has a cross-sectional aspect ratio that gradually increases from a start point toward an end point.
11. The ion diffusion device according to any one of claims 1 to 8, wherein the cross-sectional area of the air supply passage gradually increases from the starting point to the ending point.
12. The ion diffusion apparatus according to any one of claims 1 to 8, wherein an aspect ratio AR of a cross section at an end point of the air blowing passage is 2 or more and AR or less 20 or less.
13. The ion diffusion apparatus according to any one of claims 1 to 8, wherein an aspect ratio AR of a cross section at an end point of the air blowing passage is 5 or more and AR or less 22 or less.
14. The ion diffusion apparatus according to any one of claims 1 to 8, wherein an aspect ratio AR of a cross section at an end point of the air blowing passage is 5 or more and AR or less 22 or less.
15. The ion diffusion apparatus according to any one of claims 1 to 8, wherein an aspect ratio AR of a cross section at a starting pointof the air blowing passage is AR ≦ 2.
16. The ion diffusion device according to any one of claims 1 to 8, wherein a wind direction changing plate is provided in the vicinity of the air blowing port.
17. The ion diffusion means as claimed in any one of claims 1 to 8, wherein an air filter is provided on an upstream side of said ion generating means.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP316024/2003 | 2003-09-08 | ||
| JP2003316024A JP2005083651A (en) | 2003-09-08 | 2003-09-08 | Ion diffuser |
| JP316008/2003 | 2003-09-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1849490A true CN1849490A (en) | 2006-10-18 |
| CN100451504C CN100451504C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800258215A Expired - Fee Related CN100451504C (en) | 2003-09-08 | 2004-07-13 | Ion diffuser |
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| Country | Link |
|---|---|
| JP (1) | JP2005083651A (en) |
| CN (1) | CN100451504C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765453B (en) * | 2007-07-30 | 2012-08-08 | 夏普株式会社 | Air purifier |
| CN104712588A (en) * | 2015-01-27 | 2015-06-17 | 中国矿业大学(北京) | Novel mine axial flow ventilation diffuser |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4790068B2 (en) * | 2009-10-09 | 2011-10-12 | シャープ株式会社 | Method and beauty device for increasing moisture content on skin surface and improving moisture retention function of dermis |
| US8143591B2 (en) * | 2009-10-26 | 2012-03-27 | Peter Gefter | Covering wide areas with ionized gas streams |
| NZ601032A (en) * | 2010-01-18 | 2013-10-25 | Sharp Kk | Cosmetic method for increasing moisture content of skin surface and improving moisture-retaining function of dermis and beauty apparatus therefor |
| CN107345732B (en) * | 2016-05-06 | 2021-10-08 | 博西华电器（江苏）有限公司 | Refrigerator with a door |
| JP6792416B2 (en) * | 2016-11-02 | 2020-11-25 | 株式会社アイホー | Reheating device |
| CN112944764A (en) * | 2019-12-11 | 2021-06-11 | 博西华电器（江苏）有限公司 | Gas purification device, purification method by gas purification device and refrigerator |
| JP7242009B2 (en) * | 2020-08-18 | 2023-03-20 | 勝利 吉永 | Ozone jet/ventilation sterilizer |
| KR102284118B1 (en) * | 2020-08-25 | 2021-08-02 | 겟에스씨알 주식회사 | Diffusion Device of Outboard Discharge Water |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2153231Y (en) * | 1992-05-12 | 1994-01-19 | 沈阳市仁义有限公司 | Electronic chemical comprehensive fresh keeping machine for fruit and vegetable |
| JPH0856630A (en) * | 1994-08-24 | 1996-03-05 | Mitsubishi Electric Corp | Microbe breeding-preventive method and apparatus therefor |
| JP2001095544A (en) * | 1999-09-29 | 2001-04-10 | Mitsubishi Electric Corp | Storage equipped with negative ion generator |
| JP3680120B2 (en) * | 2000-09-13 | 2005-08-10 | シャープ株式会社 | Ion generator, air purifier and air conditioner equipped with the same |
-
2003
- 2003-09-08 JP JP2003316024A patent/JP2005083651A/en active Pending
-
2004
- 2004-07-13 CN CNB2004800258215A patent/CN100451504C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765453B (en) * | 2007-07-30 | 2012-08-08 | 夏普株式会社 | Air purifier |
| CN104712588A (en) * | 2015-01-27 | 2015-06-17 | 中国矿业大学(北京) | Novel mine axial flow ventilation diffuser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100451504C (en) | 2009-01-14 |
| JP2005083651A (en) | 2005-03-31 |
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