JP2008032387A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of keeping its inside in a clean state. <P>SOLUTION: This air conditioner is provided with an air passage for communicating a suction port formed on an equipment body surface with a diffusing port thereon, and having a plurality of routes partitioned in parallel, a movable louver provided in the diffusing port, a filter arranged in the air passage to clean passing air, a plurality of air fans located in the downstream of the filter and arranged in the plurality of routes partitioned in parallel, respectively, and a disinfecting means arranged in the downstream of the filter in the air passage to feed a disinfecting substance into the air passage, the air passage includes the first route arranged with the first air fan, and the second route arranged with the second air fan, either of the first air fan or the second air fan is operated in a state that the diffusing port is closed by the louver, and the air conditioner is thereby operated to circulate air taken in from the suction port in the first route and the second route. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner, for example, a large air cleaner for business use having an air purifying function.

  An air conditioner is known as a device that controls the temperature, humidity, and pollution level of indoor air. In these air conditioners, indoor air is taken into the apparatus, the physical properties of the taken-in air are changed to obtain air in a desired state, and then blown out of the apparatus. In particular, with recent changes in the living environment, an air conditioner equipped with an air purifying function that improves the degree of indoor air pollution has attracted attention. Conventionally, air purifiers with a dust collection function and a deodorizing function have been widely used, but in addition to these functions, there are air purifiers that have a function to sterilize or disinfect airborne bacteria harmful to the human body. In recent years it is becoming popular. Here, “antibacterial” refers to killing most of the bacteria attached to the fibrous filter and reducing its absolute number. Also, “sterilization” refers to removing floating bacteria floating in the air and reducing the absolute number of floating bacteria in the air.

  In such an air cleaner, the dust collecting function, the deodorizing function, and the antibacterial function are exhibited by various filters installed in the ventilation path. The sterilization function is exhibited by installing an ion generator that generates positive ions and negative ions in the air passage (see, for example, Patent Document 2). In addition, when the negative ion concentration in the air is increased using this ion generator, a relaxation effect can be obtained.

  In an air conditioner having this type of air purification function, it is necessary to determine the output of the blower according to the size of the room in which it is installed. In a home air conditioner used in a room having a relatively narrow space such as a general home, even a relatively low output blower can convect air to every corner of the room, A sufficient air cleaning effect can be obtained. However, in commercial air conditioners used mainly in rooms with large spaces such as restaurants, offices, hospitals, etc., a very high output blower is used to convect air to every corner of the room. Must be used.

  There are two types of large-sized air conditioners for business use: a built-in type that is integrated into a building, and a stationary type that can be installed freely without being incorporated into a building. Of these, the installation type air conditioner includes a floor-standing type installed on the floor and a wall-mounted type installed on the wall. Conventionally, a wall-hanging type air conditioner is generally used as a commercial air conditioner.

  FIG. 12 is a schematic longitudinal sectional view of a floor-standing type business air cleaner equipped with a high-output blower. As shown in FIG. 12, the device main body of the air cleaner has a box-shaped casing 101. A front panel 107 is attached to the front surface of the casing 101. An operation unit 120 for switching the operation state is provided in front of the upper surface of the casing 101. A base leg 116 for installation on the floor is provided on the lower surface of the casing 101.

  A suction port 102 for taking air into the casing 101 is provided on the front surface of the casing 101 behind the front panel 107. An air outlet 103 for blowing out air is provided on the upper surface of the casing 101. Inside the casing 101, an air passage 104 extending from the suction port 102 to the air outlet 103 is formed.

  A filter 112 is arranged in the ventilation path 104 behind the air inlet 102. The filter 112 includes a pre-filter 108 for removing large dust such as cotton dust, a deodorizing filter 109 having a deodorizing function, an antibacterial filter 110 having an antibacterial function, and a dust collecting filter 111 for capturing fine particles having a small particle diameter. It consists of. A blower fan 106 that is rotationally driven by a drive motor 105 is disposed downstream of the filter 112.

In the air cleaner having the above configuration, air is taken into the casing 101 from the suction port 102 when the blower fan 106 rotates. The air taken into the casing 101 passes through the ventilation path 104, and the filter 112 cleans the air. The air that has been in a desired state by passing through the filter 112 is blown into the room from the air outlet 103.
JP-A-8-112336 JP 2002-95731 A

  However, in a commercial air cleaner having the above configuration, a large noise is generated during operation. This is due to the use of a high-power blower, and the noise of the drive motor itself for operating the blower, the wind noise that blows the wind, and the wind noise that is generated when air flows in the ventilation path. According to. Normally, as the output of the blower is increased, these noises tend to increase in proportion. Moreover, although it is possible to suppress noise by enlarging the device body, there is a problem that the installation space is increased.

  Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air conditioner that can suppress an increase in noise accompanying an increase in blown output.

  An air conditioner according to the present invention communicates between an inlet and an outlet provided on the surface of an apparatus main body, and has an air passage having a plurality of paths partitioned in parallel, and a movable type provided at the outlet. A louver, a filter that is disposed in the ventilation path and purifies air passing therethrough, and a plurality of blower fans that are disposed downstream of the filter and disposed in each of the plurality of paths partitioned in parallel. And a sterilization means that is disposed on the downstream side of the filter in the ventilation path and sends out a sterilizing substance in the ventilation path, and the ventilation path is a first path in which a first blower fan is disposed. And the second path in which the second blower fan is disposed, and in a state where the blower outlet is closed by the louver, either the first blower fan or the second blower fan operates, The first path and the front Air a second pathway taken from the suction port is capable operated to circulate.

  The distances from the first blower fan and the second blower fan to the filter are different from each other.

  The sterilization means is provided in either one of the first route and the second route.

  Further, the sterilization means is an ion generator that sends out at least one of positive ions and negative ions.

  According to the present invention, it is possible to suppress an increase in noise accompanying the increase in size of the apparatus, and it is possible to provide an air conditioner that keeps the inside of the apparatus clean and does not cause discomfort to the user. become.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a large air cleaner for business that is assumed to be used in a room having a relatively large space as an air conditioner will be described as an example.

  FIG. 1 is a perspective view of an air cleaner according to an embodiment of the present invention, and FIG. 2 is a schematic longitudinal sectional view taken along line II-II of the air cleaner shown in FIG. As shown in the figure, the air purifier in the present embodiment is a floor-standing type air purifier having a vertically long shape.

(Overall structure)
As shown in FIGS. 1 and 2, the device main body of the air cleaner in the present embodiment has a vertically long box-shaped casing 1. A front panel 7 is attached to the front surface of the casing 1. A suction port 2 for taking air into the casing 1 is provided on the front surface of the casing 1 located behind the front panel 7. On the upper surface of the casing 1, an air outlet 3 for blowing the air inside the casing 1 to the outside is provided. Inside the casing 1, an air passage 4 is provided that communicates between the suction port 2 and the air outlet 3.

  An operation unit 20 for switching the operating state is disposed in front of the upper surface of the casing 1. Base legs 16 a and 16 b for installing the air purifier on the floor surface are provided on the lower surface of the casing 1. Of the base legs 16a and 16b, the base leg 16a positioned forward is configured to be adjustable in height in order to enhance stability during installation. In order to prevent the vibration of the air cleaner from propagating to the floor surface, the bottom surfaces of these base legs 16a and 16b are made of rubber.

  A caster 17 is attached to the lowermost part of the lower surface of the casing 1. A handle 29 is provided on the back surface of the casing 1. The caster 17 and the handle 29 are provided to facilitate the movement of the device main body, and the device main body can be easily moved by holding the handle 29 and tilting the casing 1 backward when moving. Is possible.

  A filter 12 is disposed behind the suction port 2. The filter 12 is divided into two parts in the vertical direction in order to facilitate maintenance work, and is fitted in the filter frame 13 and installed in the ventilation path 4. The filters 12a and 12b are arranged in the order of pre-filters 8a and 8b, deodorizing filters 9a and 9b, antibacterial filters 10a and 10b, and dust collection filters 11a and 11b in this order from the upstream.

  The pre-filters 8a and 8b are filters formed by plain weaving metal thin wires, and capture relatively large dust such as cotton dust. In this way, by arranging the metal pre-filters 8a and 8b in the forefront, even when the fire type of the cigarette falls from between the casing 1 and the front panel 7 toward the suction port 2, the entire filter 12 is disposed. It is prevented from spreading and is excellent in terms of safety.

  The deodorizing filters 9a and 9b are filters in which a substance having a deodorizing function such as activated carbon is included, and exhibit a deodorizing function by adsorbing odor components. The antibacterial filters 10a and 10b have a function of suppressing the growth of bacteria attached to the filter and reducing the number thereof. As the dust collection filters 11a and 11b, HEPA (High Efficiency Particulate Air) filters are used to capture fine particles having a fine particle size contained in the air.

  An angle 21 is disposed on the downstream side of the filter 12, a first suction port 2a is provided at the upper part of the angle 21, and a second suction port 2b is provided at the lower part of the angle. The first suction port 2a and the second suction port 2b are each covered with a fan guard (not shown). The ventilation path 4 on the downstream side from the position where the first and second intake ports 2a and 2b are provided is partitioned by a partition wall. Thereby, the ventilation path 4 is divided | segmented into the 1st path | route 4a and the 2nd path | route 4b.

  A first drive motor 5a is disposed on the downstream side of the first suction port 2a, and a first blower fan 6a as a blower is attached to the rotation shaft of the first drive motor 5a. A second drive motor 5b is disposed on the downstream side of the second suction port 2b, and a second blower fan 6b serving as a blower is attached to the rotation shaft of the second drive motor 5b. As the 1st and 2nd ventilation fans 6a and 6b, the sirocco fan which can blow off the air which approached from the rotating shaft direction to the direction which cross | intersects a rotating shaft, for example is used. Since this sirocco fan has a relatively low wind noise, it is suitable for noise suppression.

  The first path 4 a and the second path 4 b merge on the downstream side of the first and second blower fans 6 a and 6 b, and communicate with the air outlet 3 provided on the upper surface of the casing 1. A movable louver 15 that adjusts the direction of the blown air is disposed at the blowout port 3. This movable louver 15 is for changing the wind direction freely in the front-rear and left-right directions. In addition, the blower outlet 3a of the 1st path | route 4a is located in the front side in the upper surface of the casing 1, and the blower outlet 3b of the 2nd path | route 4b is located in the back side in the upper surface of the casing 1. FIG.

  An ion generator 14 is disposed downstream of the blower fan 6b in the second path 4b. The ion generator 14 is a device that generates positive ions and negative ions. For example, by generating about 50,000 to 150,000 positive and negative ions per cubic centimeter, the floating bacteria floating in the indoor air are generated. Demonstrate the air purification function to disinfect. It is also expected to obtain a relaxation effect by generating only negative ions.

  The blower fan 6a arranged in the first path 4a and the blower fan 6b arranged in the second path 4b are arranged so that the distances from the filter 12 located in front of them are different from each other. In the air purifier in the present embodiment, the second blower fan 6a is arranged so as to be located behind the first blower fan 6b.

(Action / Effect)
When designing a large air cleaner for business use as in the above configuration, a desired output can be obtained by combining two low-output air blow fans instead of adopting a high-power air blow fan as the air blowing means. By configuring so as to be obtained, generation of noise can be suppressed. That is, instead of using one high-output blower fan in order to obtain the same air volume, it is possible to reduce noise generated by the blower fan itself by using two low-output blower fans. .

  In this case, by dividing the ventilation path into two paths in parallel and disposing a blower fan in each of the paths, the airflow in the ventilation path is less likely to occur and the generation of turbulence is prevented. Become. For this reason, it is possible to prevent an increase in pressure loss and to circulate indoor air with high efficiency even if the output of the blower fan is low. Moreover, since the airflow is prevented from being disturbed by dividing the ventilation path into a plurality of paths in parallel, it is possible to suppress an increase in wind noise, resulting in a reduction in noise.

  Further, by arranging the two blower fans so that the distances from the filter are different as in the above configuration, it is possible to reduce the noise during the low output operation. This is because the intake efficiency is improved by disposing the blower fan farther from the filter, and the output of the blower fan is lower when the fan is disposed farther to secure a desired air volume. Thus, by arranging one blower fan at the rear and using the blower fan placed behind this as the main fan, it becomes possible to suppress the generation of noise even during low output operation, etc. Various operation modes can be realized.

  In the above configuration, it is preferable to reduce the manufacturing cost by sharing parts. Examples of components that can be shared include a drive motor and a blower fan. However, when the first and second blower fans are used as common parts, noise having a frequency proportional to the number of revolutions called nZ sound increases, so that the first and second blower fans are at the same number of revolutions. It is preferable not to rotate but to control to rotate with a difference in the number of rotations. Further, in order to prevent resonance due to the use of the fan having the same shape, it is preferable that the pitch of the wings provided in the blower fan is not a constant pitch but a random pitch.

  Further, as described above, when a difference is made in the rotational speeds of the two blower fans, the distance from the above-described filter to the blower fan is set to a distance based on the difference in the air volume generated according to the difference in the rotational speeds. It is preferable to do. The distance based on the air flow difference means a distance where the pressure loss until the fan reaches the fan after passing through the filter is the same in the first and second paths. In this way, by setting the distance based on the air volume difference, there is no difference in the air volume in the first and second paths, so that it is possible to blow in a balanced manner on the two paths.

  Note that a DC motor is preferably used as the drive motor. This is because the power consumption of the DC motor is lower than that of the AC motor, and the increase in power consumption due to the use of two drive motors is suppressed as low as possible. Further, if a DC motor is employed, feedback control can be easily performed by a control means such as a microcomputer, so that air can be circulated with high efficiency. In addition, when an AC motor is used, it is preferable to use the same motor in order to share parts, but it is preferable to perform triac control in order to prevent adverse effects caused by the same rotation speed. .

  Below, the more preferable operation control and structure in the air cleaner of the above-mentioned structure are demonstrated in detail for each part with reference to drawings.

(Cleaning operation)
3 and 4 are schematic longitudinal sectional views of the air cleaner showing a state when the cleaning operation is performed in the air cleaner in the present embodiment. Here, the cleaning operation is an operation mode in which the inside of the casing 1 is sterilized, and an operation mode in which the inside of the casing 1 can be kept clean by periodically performing the cleaning operation. That is.

  As shown in FIG. 3, when performing the cleaning operation, first, the movable louver 15 installed in the blower outlet 3 is rotated to close the blower outlet 3. Next, only the second blower fan 6b is turned on, and the first blower fan 6a is turned off. As a result, as shown in FIG. 3, the air taken in from the suction port 2b becomes air containing a large amount of positive ions and negative ions by the ion generator 14 when passing through the second path 4b. This air is discharged upward from the second air outlet 3b. However, since the air outlet 3 is closed by the louver 15, the air enters from the first air outlet 3a into the first path 4a. The air that has passed through the first path 4a is blown out from the first suction port 2a toward the filter 12a, but is again sucked into the second suction port 2b by the second blower fan 6b. As a result, as shown in the figure, air containing a large amount of positive ions and negative ions circulates in the ventilation path 4. This operation state is continued for a predetermined time.

  By performing the operation mode as described above, air containing a large amount of positive ions and negative ions circulates in the first path and the second path inside the casing, thereby obtaining a sterilization effect inside the casing. Be able to. By regularly performing the cleaning operation, the inside of the casing can be kept clean at all times, and the frequency of full-scale cleaning work can be reduced.

  In the cleaning operation, as shown in FIG. 4, the first blower fan 6a may be turned on and the second blower fan 6b may be turned off. Also in this case, as shown in the drawing, air containing a large amount of positive ions and negative ions circulates in the ventilation path 4.

(Structure of the upper surface of the casing)
FIG. 5 is a side view of the upper part of the casing of the air cleaner according to the present embodiment. 6 and 7 are side views showing other preferable shapes of the upper part of the casing.

  As shown in FIG. 5, the upper surface of the casing 1 in the present embodiment has a front region located in front of the air outlet 3 and a rear region in which the air outlet 3 is formed. In the front region, the upper surface of the casing 1 has a curved surface that continuously slopes in a direction in which the height decreases toward the rear. In the rear region, the upper surface of the casing 1 has an inclined surface that continuously inclines in the direction of decreasing the height toward the rear.

  By setting the casing upper surface in such a shape, the user can avoid placing an article on the casing upper surface. When an article is placed on the upper surface of the casing, an object may fall from the outlet to the ventilation path inside the casing due to some impact or vibration. In the unlikely event that the device falls, it may cause a failure of the apparatus. In this embodiment, the above-described shape prevents the user from placing the article on the upper surface of the casing. Examples of the articles include small articles that may be intentionally placed by the user and cups containing drinks.

  As the shape of the upper surface of the casing where the user can avoid placing the article on the upper surface of the casing, the shape shown in FIG. 6 or the shape shown in FIG. The shape shown in FIG. 6 is a case where a curved shape that continuously inclines in the direction of decreasing the height toward the rear is adopted over the entire upper surface of the casing 1. The shape shown in FIG. 7 is a case where an inclined surface continuously inclined in the direction of decreasing the height toward the rear is formed over the entire upper surface of the casing 1.

(Sound-absorbing material mounting structure)
FIG. 8 is a cross-sectional view showing the structure of the ventilation path of the air cleaner in the present embodiment. Moreover, FIG. 9 is sectional drawing which shows the structure of another preferable ventilation path.

  As shown in FIG. 8, a sound absorbing material 19 is affixed to the inside of the wall 18 that forms the ventilation path of the air purifier in the present embodiment. As the sound absorbing material 19, for example, a flexible urethane foam is used. The sound-absorbing material 19 prevents wind noise generated by blowing air on the wall surface and noise generated from the blower fan or drive motor from leaking to the outside, and is affixed to the inside of the wall 18 constituting the ventilation path. Effectively suppresses noise from leaking outside. In addition, as an air passage which sticks the sound absorption material 19 in the air cleaner in this Embodiment, not only the 1st path | route 4a and the 2nd path | route 4b but the 1st and 2nd inlet ports 2a and 2b from the inlet port 2 is provided. Ventilation paths leading to and the ventilation paths extending from the first and second outlets 3a and 3b to the outlet 3 are conceivable. Moreover, leakage to the outside can also be suppressed by sticking to the inner wall surface of the casing 1.

  Further, as shown in FIG. 9, a large number of through holes 18a are provided in the wall 18 constituting the ventilation path, and a sound absorbing material 19 is pasted on the outside of the wall 18 constituting the ventilation path so as to cover the through hole 18a. Also good. Also in this case, it is possible to effectively prevent noise from leaking to the outside.

(Front panel mounting structure)
FIG. 10 is an enlarged cross-sectional view showing a mounting structure of the front panel of the air cleaner according to the embodiment of the present invention. FIG. 10A shows a state before attachment, and FIG. 10B shows a state after attachment.

  As shown in FIG. 10A, a locking portion 24 is provided so as to protrude near the upper end of the back surface of the front panel 7. The locking part 24 has a through-hole penetrating in the vertical direction. At a predetermined position on the front surface of the casing 1, a latch receiving portion 25 is provided so as to protrude corresponding to the latch portion 24. The lock receiving portion 25 has a nut 32 embedded therein, and a through hole is formed concentrically with the hole of the nut. In addition, the latching | locking part 24 and the latching receiving part 25 are comprised so that the clearance gap of a predetermined distance may arise in the up-down direction in the state in which the front panel 7 was attached to the casing 1. FIG.

  A bolt 31 is inserted into the through hole provided in the locking portion 24 from above via a spring 33. The spring 33 presses and urges the screw head of the bolt 31 upward. Further, an E-ring 31a is fitted in a predetermined position of the bolt 31, and the bolt 31 is attached so as not to drop off from the front panel 7. The screw head of the bolt 31 is in a position protruding from the upper end of the front panel 7 when not fastened.

  When attaching the front panel 7 to the casing 1, first, the lower end of the front panel (not shown) is inserted into a receiving portion provided below the front surface of the casing. Subsequently, the front panel 7 and the casing 1 are set so as to be parallel, and the bolt 31 is pushed downward against the spring 33. Next, the bolt 31 is rotated in a state where the bolt 31 is pushed down, and is fastened to the nut 32 provided in the latch receiving portion 25. As a result, the front panel 7 is fixed to the casing 1 as shown in FIG.

  With the front panel mounting structure having the above configuration, the front panel can be easily mounted on the casing. Further, since the bolt is structured not to fall off from the front panel, the bolt is not lost when the front panel is removed. Furthermore, since the screw head of the bolt is pushed up to a position protruding from the upper end of the front panel by the spring when not fastened, it is easy to confirm whether the bolt is securely fixed.

(Composition of ventilation path)
FIG. 11 is a schematic longitudinal sectional view showing another modification of the air cleaner in the present embodiment. Specifically, the structure of the ventilation path is different from that of the above embodiment. As shown in FIG. 11, in this modification, a partition wall 4c is provided between the two angles 21 and the filter 12, and the ventilation path 4 is formed on the downstream side of the filter 12 by the partition wall 4c. And the second path 4b.

  By adopting this configuration, the space from the filter to the angle is divided into the first path and the second path by the partition wall, so that the cross-sectional area of the ventilation path is reduced and the occurrence of turbulence is more reliably prevented. It becomes like this. Thereby, generation | occurrence | production of noise comes to be suppressed further.

  In the said embodiment, although the ventilation path was divided | segmented into 2 paths | routes in parallel and the case where the two ventilation means were provided was demonstrated and demonstrated, it is not limited to this in particular, A ventilation path is parallel The number is not limited, as long as it is divided into a plurality of numbers.

  Moreover, in the said embodiment, although the case where the filter divided | segmented up and down was made into the same thickness was demonstrated and demonstrated, you may change thickness up and down. Thus, by changing the thicknesses of the upper and lower filters, it is possible to freely design the blowing capacity.

  In this embodiment, an air passage, a filter, and a ventilation means are provided. The ventilation path communicates between a suction port and a blower outlet provided on the surface of the device body, and has a plurality of paths partitioned in parallel. A filter is arrange | positioned in a ventilation path and cleans the air which passes. The air blowing means is disposed in each of a plurality of paths partitioned in parallel. In this way, since a desired air blowing capacity is obtained by using a plurality of low power air blowing means instead of using a high power air blowing means, the output required per air blowing means can be reduced. It becomes possible to reduce the noise generated by the operation of the blowing means. Further, by adopting a configuration in which the ventilation paths are divided in parallel corresponding to the respective air blowing means, the turbulence is hardly suppressed and the occurrence of turbulence is greatly suppressed. For this reason, generation | occurrence | production of the noise by disturbance of airflow is also suppressed. As a result, an effect of significantly reducing noise can be obtained as compared with the case where a high-power blowing means is used to obtain a desired blowing capacity.

  Moreover, in the air cleaner mentioned above, it is preferable that the plurality of air blowing units are arranged on the downstream side of the filter, and the distance from each of the plurality of air blowing units to the filter is different from each other. In this way, by configuring the distance from each of the blowing means to the filter to be different from each other, it is possible to change the intake efficiency of each blowing means. This is because the pressure loss of the air passing through the ventilation path is changed by changing the distance from the filter to the blowing means. As a result, various operation modes can be realized by controlling the outputs of the plurality of air blowing means.

  Moreover, the filter is divided | segmented corresponding to the some path | route, and the thickness of each filter may differ according to the distance to each ventilation means. In this way, by dividing the filter corresponding to each passage of the ventilation passage and the blowing means installed there, and making the divided filter have a thickness according to the distance to the blowing means, the blowing ability can be freely set. It becomes possible to design. For example, in the case of having air blowing means having the same capacity, the air blowing capacity in both paths can be obtained by making the filter corresponding to the air blowing means arranged in the rear appropriately thicker than the filter corresponding to the air blowing means arranged in the front. Can be equivalent.

  In addition, the device body has a vertically long shape, a suction port is disposed on the front surface of the device body, an air outlet is disposed on the top surface of the device body, and the air passage that connects these suction port and the air outlet is located above the front surface of the device body. A first path communicating between the first suction port arranged at the front and the first air outlet arranged in front of the upper surface of the device main body, the second suction port arranged at the lower front of the device main body, and the device main body You may be divided | segmented in parallel with the 2nd path | route which connects between the 2nd blower outlets arrange | positioned in the upper surface back. As described above, in the air conditioner including the device main body having the vertically long shape, the plurality of paths divided in parallel are configured as described above, thereby simplifying the device configuration and improving the air cleaning effect. And will be satisfied at the same time.

  Further, a sound absorbing material may be attached to the inner wall surface of the wall constituting the ventilation path. Moreover, the wall which comprises a ventilation path has a some through-hole, and the sound-absorbing material may be affixed on the outer wall surface of the wall which comprises a ventilation path so that a several through-hole may be covered. In this way, by attaching the sound absorbing material to the ventilation path, noise generated in the ventilation path is absorbed by the sound absorbing material, so that noise leaking outside the apparatus is further reduced. For this reason, further noise reduction becomes possible.

  Further, the upper surface of the device main body may have a shape that prevents the article from being placed. In this way, by making the upper surface of the device main body into a shape in which the article cannot be placed, the possibility that the article will fall from the air outlet into the device main body is reduced, so that the air conditioner is less likely to fail. It becomes possible.

  Further, the upper surface of the device main body may be continuously inclined in a direction in which the height decreases toward the rear. As the shape of the upper surface of the device main body that prevents the placement of the article as described above, for example, a shape consisting only of a slope as in the present configuration can be considered.

  Moreover, it is preferable that the filter has at least one of a dust collecting function, a deodorizing function, and an antibacterial function. Since the filter has any of the functions described above, the air can be purified.

  Moreover, it is preferable to provide the ion generator which sends out at least any one of a positive ion or a negative ion in the air in a ventilation path located downstream from a filter and a ventilation means. Thus, by installing the ion generator in the ventilation path, it is possible to obtain a sterilization effect and a relaxation effect.

  Moreover, in the said embodiment, although the air cleaner was illustrated and demonstrated as an air conditioner, this invention is not restricted to an air cleaner, A dehumidifier, a humidifier, a cooler, a heater, or these It can be applied to air conditioners in general, including devices with multiple functions.

  Thus, the above-described embodiment disclosed herein is illustrative in all respects and is not restrictive. The technical scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a perspective view of the air cleaner in embodiment of this invention. It is a schematic longitudinal cross-sectional view which follows the II-II line in FIG. 1 of the air cleaner in embodiment of this invention. FIG. 4 is a schematic longitudinal sectional view showing a first stage during a cleaning operation in the air cleaner according to the embodiment of the present invention. In the air cleaner in embodiment of this invention, it is a schematic longitudinal cross-sectional view which shows the 2nd stage at the time of a cleaning driving | operation. It is a side view of the casing upper part of the air cleaner in this Embodiment. It is a side view which shows the shape of another preferable casing upper part. It is a side view which shows the shape of another preferable casing upper part. It is sectional drawing which shows the structure of the ventilation path of the air cleaner in embodiment of this invention. It is sectional drawing which shows the structure of another preferable ventilation path. (A) which shows the attachment structure of the front panel of the air cleaner in embodiment of this invention is sectional drawing before attachment, (b) is sectional drawing after attachment. It is the schematic longitudinal cross-sectional view which showed the modification of the structure of the ventilation path in embodiment of this invention. It is a longitudinal cross-sectional view of the conventional air cleaner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing, 2 Suction inlet, 2a 1st inlet, 2b 2nd inlet, 3 Outlet, 4 Ventilation path, 4a 1st path | route, 4b 2nd path | route, 5a, 5b Drive motor, 6a, 6b Blower fan, 7 Front panel, 8a, 8b Prefilter, 9a,
9b Deodorizing filter, 10a, 10b Antibacterial filter, 11a, 11b Dust collection filter, 12a, 12b filter, 13 Filter case, 14 Ion generator, 15 Louver, 16 Base leg, 17 Casters, 18 (Ventilation path) wall, 18a through hole, 19 sound absorbing material, 20 operation part, 24 locking part, 25 locking receiving part, 31 screw, 31a E-ring, 32 nut, 33 spring.

Claims (4)

A ventilation path having a plurality of paths separated in parallel, communicating between the inlet and the air outlet provided on the surface of the apparatus main body,
A movable louver provided at the outlet;
A filter that is disposed in the ventilation path and purifies air passing therethrough;
A plurality of blower fans disposed on each of the plurality of paths divided in parallel on the downstream side of the filter;
Disposed on the downstream side of the filter in the ventilation path, and sterilization means for sending a sterilizing substance into the ventilation path,
The ventilation path includes a first path in which the first blower fan is arranged and a second path in which the second blower fan is arranged,
In the state where the blower outlet is closed by the louver, either the first blower fan or the second blower fan is operated to take in the first path and the second path from the suction port. An air conditioner that can be operated so that air circulates.   The air conditioner according to claim 1, wherein distances from the first blower fan and the second blower fan to the filter are different from each other. The air conditioner according to claim 1 or 2, wherein the sterilizing means is provided in one of the first path and the second path. The air conditioner according to any one of claims 1 to 3, wherein the sterilizing means is an ion generator that sends out at least one of positive ions and negative ions.