JP2009264618A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner can easily remove dust accumulated on a prefilter body having a roughly-saw blade-shaped cross section. <P>SOLUTION: A passage air trunk (not shown) for guiding the outside air including indoor suspended dust, from a suction port (not shown) to an exhaust port (not shown), is formed on a body (not shown) having the suction port and the exhaust port, the prefilter body 6 for capturing dust and an air blower (not shown) are disposed successively from the upstream side in the passage air trunk, the prefilter body 6 is composed of a filter 20 composed of a sheet-shaped member and roughly formed into the saw blade shape of which a cross section includes crest portions 20a and trough portions 20b, and a frame body 21 holding an outer periphery of the filter 20, and as a flat face 20c is formed on the upstream-side trough portion 20b of the filter 20, the dust can be easily removed from the trough portion 20b of the filter 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioner, and particularly relates to a configuration of a prefilter body.

  This type of conventional air conditioner is arranged on the upstream side of an indoor heat exchanger, a pre-filter body having a large number of pores, and sucks indoor air through the pre-filter body. A blower is provided for returning the air heat-exchanged by the heat exchanger to the room, and the cross-sectional shape of the pre-filter body is formed in a substantially saw-tooth shape made up of peaks and valleys. Thereby, since the filtration area of the pre-filter body in the predetermined space can be increased, the flow of the outside air to the blower becomes smooth and the pressure loss is reduced. Long life is possible.

In addition, since the amount of dust collected can be increased by increasing the filtration area of the prefilter body, it is not necessary to carry out the dust treatment of the prefilter body in a complicated manner, and the strength of the prefilter body is also improved by bending portions. Therefore, even when the filter is clogged with collected dust, the suction force of the blower can be overcome and its deformation can be prevented (see, for example, Patent Document 1).
JP-A-6-193904

  However, since the valley in the cross section of the pre-filter body of the conventional air conditioner disclosed in Patent Document 1 is substantially triangular, the outside air containing dust is inclined to connect the mountain and the valley. Since it is guided along the surface toward the top of the trough, dust accumulates in order from the top of the trough on the upstream side and is compressed. For this reason, there was a problem that it was very difficult to remove dust accumulated on the prefilter body.

  The present invention solves the above-mentioned conventional problems, and provides an air conditioner in which dust accumulated on a prefilter body formed in a substantially saw-tooth shape with a cross-sectional shape including a peak and a valley is extremely easy to remove. It is for the purpose.

  In order to solve the above-described conventional problems, the air conditioner of the present invention forms, in a main body having a suction port and an exhaust port, a passing air passage that guides outside air containing indoor floating dust from the suction port to the exhaust port. Then, a pre-filter body for collecting dust and a blower are arranged in order from the upstream side in the passage air passage, and the pre-filter body is made of a sheet-like member and has a cross-sectional shape from a peak portion and a valley portion. The filter is formed in a substantially saw blade shape and a frame body that holds the outer periphery of the filter, and a flat surface is formed in the valley on the upstream side of the filter, and dust from the valley of the filter is formed. Removal is extremely easy.

  In the air conditioner of the present invention, it is very easy to remove dust accumulated in the valley portion of the prefilter body formed in a substantially saw-tooth shape with a cross-sectional shape including a mountain portion and a valley portion.

  According to a first aspect of the present invention, a main body having a suction port and an exhaust port is provided with a passage air passage that guides outside air containing floating dust in the room from the suction port to the exhaust port. A pre-filter body for collecting dust, and a blower in order, the pre-filter body is formed of a sheet-like member, and the filter is formed in a substantially saw-tooth shape with a cross-sectional shape including a peak portion and a valley portion; and It is composed of a frame body that holds the outer periphery of the filter, and a flat surface is formed in the valley portion on the upstream side of the filter, so that it is very easy to remove dust from the valley portion of the filter.

  In the second invention, in particular, the flat surface provided in the valley portion of the filter of the first invention is positioned substantially the same as or upstream from the upstream surface of the frame, and the upstream of the filter. When dust accumulated on the side valley is removed with a brush or the like, the dust is not caught on the frame at the end of the filter, and the dust treatment can be performed smoothly.

  In particular, the third aspect of the invention is the air conditioner of the first or second aspect of the present invention, comprising a dust remover that is made of a brush or the like and that contacts the upstream surface of the prefilter body to remove dust, and the dust remover or the A drive body for reciprocating the prefilter body within a passing air path by a predetermined distance, and forming a cross-sectional shape of a portion of the dust removing body in contact with the filter in a saw blade shape having a peak portion and a valley portion, A flat surface is formed on the peak portion of the dust removing body that contacts the valley on the upstream side of the filter, and when the dust collected by the filter is automatically processed, both the filter and the dust removing body that contacts the dust collecting body are used. Since the cross section is formed in a substantially saw-tooth shape consisting of peaks and valleys, even if the dust remover tries to deform left and right, the deformation is reduced by the respective peaks, valleys, and slopes, ensuring that Dust removal Ukoto can. Furthermore, when driving either the dust removing body or the pre-filter body by the driving body, the respective peak portions, valley portions, and inclined portions serve as guide rails, and the dust removing body does not shake left and right. In addition, the upstream surface of the pre-filter body can be moved straight to perform the dust removal operation without leaving any dust. At this time, since the flat surfaces of the peak portion of the dust removing body and the valley portion of the filter are in contact with each other, the dust removing force is distributed to the left and right as compared with the case where the peak portion and the valley portion having a substantially triangular cross section are in contact. Less dust and reliably remove dust.

  In the fourth aspect of the invention, in particular, a flat surface is formed at the peak portion on the upstream side of the filter according to any one of the first to third aspects, and the flat surface is also formed at the peak portion on the upstream side of the filter. Thus, the strength of the filter is further improved, and deformation can be prevented against the suction force of the blower even when the filter is clogged with dust. Moreover, since the flat surface is formed also in the peak part of a filter, the dust of the peak part can also be removed reliably.

  In particular, the fifth aspect of the present invention is the one in which the flat surface is formed in the valley portion of the dust removing body of the fourth invention, and the pre-filter is formed by forming the flat surface in both the peak portion of the filter and the valley portion of the dust removing body. The strength of the body is improved, and the contact surfaces of the dust removing body and the filter are flat surfaces, and are brought into contact with each other vertically, whereby the dust removing force becomes uniform and the dust removing effect is improved.

  In the sixth invention, in particular, the valley portion of the filter according to any one of the first to fifth inventions is formed as a bridge body that joins between two opposite beams of the frame body. The bridge body is formed by connecting two opposing bars of the frame body, which is almost rectangular and has a space in the center, so that the strength of the frame body is improved and the filter of the blower can be used even when the filter is clogged. It can overcome the suction force and prevent deformation. Also, if the bridge body is formed by pouring the resin of the frame body in the valley on the upstream side of the filter, the narrow diameter of the filter is blocked at that location, so that dust does not easily accumulate in the valley and the dust removal work is easy It is.

  In the seventh invention, in particular, a part of the main body of any one of the first to sixth inventions or one end of the pre-filter body is provided with a dust container for storing the dust removed from the filter. It becomes easy to dispose of or remove the dust removed from the prefilter body.

  In the eighth invention, in particular, the dust container of the seventh invention is detachably provided on a part of the main body or the pre-filter body. When the dust is thrown away, the dust container can be removed and easily carried. Therefore, it is easy to handle dust.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, this invention is not limited by this Example.

  Example 1

  1 is a cross-sectional view of an air conditioner according to a first embodiment of the present invention, FIG. 2 is a perspective view and an exploded perspective view of a prefilter body of the air conditioner, and FIG. 3 is a back surface of the prefilter body. 4 is a sectional view taken along line AA in FIG. 2, FIG. 5 is a sectional view taken along line BB in FIG. 2, FIG. 6 is a sectional view taken along line CC in FIG. FIG. 8 is a sectional view of the prefilter body and the dust removing body, and FIG. 9 is a sectional view of the prefilter body and the dust removing body.

  1 to 9, a front panel 3 having a plurality of suction ports 2 and having an upper end rotatably attached to the main body 1 is attached to the front portion of the main body 1 of the air conditioner according to the present embodiment. An exhaust port 4 is provided at the lower portion of the main body 1, and the suction port 2 and the exhaust port 4 are communicated with each other in a passage air passage 5 that guides indoor air containing floating dust from the suction port 2 to the exhaust port 4. Is, in order from the front panel 3 side, sucks indoor air from the prefilter body 6 that captures dust contained in the indoor air flowing in from the air inlet 2, the indoor heat exchanger 7, and the air inlet 2, A blower 8 for blowing out the air heat-exchanged by the indoor heat exchanger 7 from the exhaust port 4 is disposed.

  On the lower surface of the main body 1, a prefilter body passage port 9 in which the prefilter body 6 appears and disappears is provided. On the upstream side of the pre-filter body 6, a dust removing body 12 that removes dust captured by the pre-filter body 6 and a dust that is disposed below the dust removing body 12 and removed by the dust removing body 12 and that falls are received. A dust storage body 13 is provided for storage. Although not particularly illustrated, an opening for taking in and out the dust container 13 is provided on the side surface of the main body 1.

  Reference numeral 14 denotes a first driving body that moves the prefilter body 6 obliquely upward and downward while guiding the prefilter body holding groove 15 provided in the main body 1 when cleaning the prefilter body 6. When the body 14 is driven and the prefilter body 6 is moved obliquely downward, the prefilter body 6 jumps out of the prefilter body passage port 9 and when the prefilter body 6 is moved obliquely upward, the prefilter The body 6 is accommodated in the main body 1. Reference numeral 16 denotes a control body that controls electric components such as the blower 8 and the first driving body 14.

  The prefilter body 6 is made of a sheet-like filter material for collecting dust, and, as shown in FIG. 2, the cross-section of the prefilter body 6 is a substantially saw-toothed filter 20 composed of a crest 20 a and a trough 20 b, It is comprised from the frame 21 holding an outer periphery.

  In the present embodiment, a flat surface 20 c is formed in the valley 20 b on the upstream side of the filter 20.

  The frame body 21 has an opening 21a at the center, and a plurality of cross-sections 20a of the filter 20 are fixed to the upstream surface of the pair of crosspieces 21b facing each other in the vertical direction. A flat end 21d is provided in which the protrusion 21c and the back surface of the flat surface 20c of the filter 20 are airtightly fixed.

  As described above, the peak portion 20a and the flat surface 20c of the filter 20 are airtightly fixed to the protrusion 21c and the flat end portion 21d, and the left and right end portions of the filter 20 are fixed to the left and right crosspieces 21e of the frame body 21. By doing so, the opening 21 a is completely covered with the filter 20.

  Further, as shown in FIG. 3 (a), a gear A21f extends in the vertical direction on the back surface of the right end of the frame body 21.

  The first driving body 14 includes a first motor 17 and a first driving gear 22 that is fixed to the rotating shaft 17 a and meshes with a gear A 21 f provided on the frame body 21.

  The dust removing body 12 is composed of a shaft body 12a, one end of which is rotatably supported by a bearing portion 1a provided on the main body 1 and the other end connected to a second driving body 23, a large number of small-diameter fibers, and the like. The brush 12b is attached to the outer periphery of the shaft body 12a and is in contact with the upstream surface of the filter 20 to remove dust adhering to the filter 20. The width of the brush 12b is set to be approximately equal to the entire width of the filter 20. The attachment of the brush 12b to the outer periphery of the shaft body 12a may be fixed by a method such as adhesion, welding, and flocking, or may be detachably attached.

  As shown in FIG. 8, the cross-sectional shape of the brush 12 b of the dust removing body 12 is formed in a saw blade shape having a valley portion 12 c that contacts the peak portion 20 a of the filter 20 and a peak portion 12 d that contacts the valley portion 20 b of the filter 20. ing.

  By rotating the second driving body 23 connected to one end of the shaft body 12 a of the dust removing body 12, the dust removing body 12 is rotated clockwise in FIG. 1 and adhered to the upstream surface of the filter 20. The scraped dust can be efficiently scraped off.

  The length in the left-right direction of the dust container 13 that receives the dust removed by the dust remover 12 is substantially the same as the length over the entire width of the filter 20, and the dust remover 12 is disposed on the upper surface of the dust container 13. An opening 13a facing the brush 12b is formed, and a comb tooth 24 whose tip bites into the brush 12b is provided in a part of the dust container 13 in parallel with the brush 12b.

  The operation and action of the air conditioner in the present embodiment configured as described above are as follows.

  In addition, since the operation | movement at the time of the air conditioning operation of the air conditioner in a present Example is the same as that of the conventional air conditioner, the description is abbreviate | omitted and especially the operation | movement at the time of the cleaning operation of the pre filter body 6 is demonstrated.

  When a pre-filter body cleaning switch (not shown) provided on the main body 1 or a remote controller (not shown) for remotely operating the main body 1 is operated, first, the dust removing body 12 is moved by the operation of the second driving body 23. Rotate clockwise (see FIG. 1), that is, in a direction to scrape off dust adhering to the filter 20 from top to bottom with the brush 12b. Then, the first driving body 14 is driven, and the prefilter body 6 is slowly moved obliquely downward. By this operation, the dust adhering to the filter 20 is scraped in order from the lower side of the filter 20, and the dust falls and accumulates in the dust container 13.

  In this embodiment, during the cleaning operation, the peripheral speed of the outer periphery of the brush 12b is set to be larger than the descending speed of the prefilter body 6. This reliably removes dust attached to the prefilter body 6 and prevents an excessive load on the prefilter body 6, that is, an excessive load on the first drive body 14.

  During the above operation, dust may remain attached to the brush 12b. However, since the tips are sequentially removed by the comb teeth 24 that have digged into the brush 12b, the dust removal performance may gradually deteriorate. No.

  When the pre-filter body 6 is completely lowered by the operation of the first driving body 14 and the cleaning of the pre-filter body 6 is completed, the first driving body 14 automatically reverses and the pre-filter body holding groove 15 is restored. , The prefilter body 6 rises and returns to the initial storage position. If the dust removing body 12 is rotated by the second driving body 23 while the prefilter body 6 is moving up, the prefilter body 6 can be more reliably cleaned. Alternatively, the mechanical connection between the dust removing body 12 and the second driving body 23 is released using a clutch mechanism (not shown) or the like while the prefilter body 6 is raised, and the dust removing body 12 is freely rotated. If possible, the load applied to the pre-filter body 6, that is, the load applied to the first drive body 14 can be greatly reduced, and the first drive body 14 can be downsized.

  When the pre-filter body 6 is cleaned several times as described above and the inside of the dust container 13 is filled with dust, the dust is removed from an opening (not shown) provided on the side surface of the main body 1. What is necessary is just to take out the storage body 13 and discard the dust in it.

  Although the cost is high, a suction device (not shown) is connected to the dust container 13 to detect that the dust container 13 is filled with dust periodically or using optical means. In this case, if the suction device is operated and discharged to the outside, an air conditioner that does not require time and is easy to maintain can be provided.

  Further, since the flat surface 20c is provided in the valley 20b on the upstream side of the filter 20, it is very easy to remove dust from the valley 20b of the filter 20.

  In the above embodiment, the back surface of the flat surface 20c of the filter 20 is fixed to the flat end portion 21d on the upstream side of the frame body 21, that is, the flat surface 20c is upstream of the upstream surface of the frame body 21. Since the dust accumulated in the trough 20b on the upstream side of the filter 20 is removed by the dust remover 12, the dust is not caught on the frame 21 at the end of the filter 20, and the dust is treated. Can be done smoothly.

  It is to be noted that the same effect can be obtained by providing a level difference of about the thickness of the filter 20 at the flat end portion 21d of the frame body 21 so that the flat surface 20c of the filter 20 is flush with the upstream surface of the frame body 21. Needless to say.

  Further, the cross section of the dust removing body 12 is formed in a saw blade shape having a valley 12c and a peak 12d so as to correspond to the peak 20a and the valley 20b of the filter 20, respectively. When the collected dust is automatically processed, even if the dust removing body 12 is to be deformed to the left and right, the respective crests 12d, troughs 12c, and the inclined parts 12f that connect the crests 12d and the troughs 12c, Since deformation is reduced, dust can be reliably removed.

  Further, when the prefilter body 6 is driven by the first driving body 14, the crests 20a, the troughs 20b, and the inclined parts 20d connecting the crests 20a and the troughs 20b serve as guide rails, The dust removing body 12 is surely moved straight on the upstream surface of the pre-filter body 6 without shaking from side to side, and the dust removing operation can be efficiently performed without leaving any dust. At this time, the flat surface 12e and the flat surface 20c of the peak portion 12d of the dust removing body 12 and the valley portion 20b of the filter 20 are in contact with each other, so that the peak portion and the valley portion having a substantially triangular cross section are in contact with each other. Therefore, the dust removal force is less dispersed to the left and right, and dust removal can be performed reliably.

  In the above-described embodiment, in order to enable the pre-filter body 6 to be automatically cleaned, a method of rotationally driving the dust removing body 12 is adopted. In the air-air conditioner in which the prefilter body 6 is removed from the main body 1 of the air conditioner and cleaned using a general brush, if necessary, the flat surface is formed on the valley 20b of the prefilter body 6. Needless to say, since the 20c is formed, it is easy to remove dust.

  In addition, in the said Example, although the flat surface 20c was formed in the trough part 20b of the filter 20 of the pre-filter body 6, and the flat surface 12e was formed in the peak part 12d of the dust removal body 12 facing it, as shown in FIG. The flat surface 20c may be formed on each of the peak portion 20a and the valley portion 20b of the filter 20, and the flat surface 12e may be formed on each of the valley portion 12c and the peak portion 12d on the dust removing body 12 side facing them.

  By configuring the filter 20 as described above, the strength of the filter 20 can be further improved, and deformation can be prevented against the suction force of the blower 8 even when the filter 20 is clogged with dust. Moreover, since the flat surface 20c is formed also in the peak part 20a of the filter 20, the dust of the peak part 20a can also be removed reliably.

  Moreover, since the flat surface 12e is formed in both the trough part 12c and the peak part 12d of the dust removing body 12, the contact surfaces with the filter 20 become flat surfaces, and the dust contact force is made uniform by abutting vertically. The dust removal effect can be greatly improved.

  Moreover, in the said Example, although the dust removal body 12 formed by adhering the brush 12b which consists of many small diameter fibers etc. to the shaft body 12a, as shown in FIG. 11, on the outer periphery of the shaft body 12a, respectively. A plurality of sheet-like brushes 12b in which the peak portions 12d and valley portions 12c are formed may be fixedly configured. Even in this case, it is needless to say that the flat surface 12e is formed at least in the peak portion 12d.

  (Example 2)

  FIG. 12 is a perspective view and a cross-sectional view of the prefilter body of the air conditioner according to the second embodiment of the present invention. In addition, about the same part as the air conditioner in the said 1st Example, description is abbreviate | omitted using the same code | symbol.

  In the first embodiment, the flat surface 20c is formed by providing a flat portion in the valley portion 20b of the filter 20 of the prefilter body 6, but in this embodiment, the frame body 21 is molded as shown in FIG. In this case, the resin material forming the frame body 21 is molded integrally with the filter 20 so as to flow into the valley 20b of the filter 20, and the flat surface 20c is formed in the valley 20b. . In the present embodiment, the flat surface 20 c and the upstream surface of the frame body 21 are flush with each other, but may be positioned upstream of the upstream surface of the frame body 21.

  According to the prefilter body 6 configured as described above, in the portion where the flat surface 20c of the valley 20b of the filter 20 is formed, the pores of the filter 20 are blocked with resin, and air does not pass through. It becomes difficult for dust to accumulate on the portion, and the dust removal work becomes easier.

  In addition, the resin forming the flat surface 20c in the valley 20b of the filter 20 serves as a bridge body that connects the upper and lower bars 21b of the frame body 21, so that the strength of the frame body 21 is improved and the filter 20 Even in a clogged state, it is not easily deformed by the suction force of the blower 8.

  (Example 3)

  FIG. 13: is principal part sectional drawing of the air conditioner in the 3rd Example of this invention, and is a perspective view of a pre filter body and a dust removal body. In addition, about the same part as the air conditioner in the said Example, description is abbreviate | omitted using the same code | symbol.

  In the first embodiment, the entire position of the prefilter body is cleaned by fixing the position of the dust removing body and moving the prefilter body in the vertical direction. The dust filter is fixed and moved up and down to clean the entire prefilter body.

  In FIG. 13, the pre-filter body 27 of the air conditioner according to the present embodiment is composed of a frame body 28 and a filter 20 that is fixed to the frame body 28 in an airtight manner so that the peak portion 20a is in the vertical direction. A dust storage body 29 is attached to the lower portion of the frame body 28 so that the upper surface is open and receives dust falling from the filter 20 and stored therein. Needless to say, when the dust container 29 is attached to a predetermined portion of the frame body 28, the dust container 29 is positioned directly below the filter 20.

  30 is a dust remover that removes dust adhering to the upstream surface of the filter 20, and is formed of a large number of small-diameter fibers or sheet-like members. The valley portions are in sliding contact with the peak portions 20 a and valley portions 20 b of the filter 20. The brush 31 includes a brush 31 having a peak 31a and a peak 31b, and a brush holding member 32 that holds the brush 31.

  In the main body 1 of the air conditioner, guide grooves 33 for guiding both ends of the brush holding member 32 in the vertical direction are formed. Although not shown in particular in the main body 1, the brush holding member 32 is slidably brought into contact with the peak portion 20 a and the valley portion 20 b of the filter 20, as shown in FIG. 13. A third driving body that moves up and down in a state is provided.

  The cleaning operation of the pre-filter body 27 of the air conditioner in the present embodiment configured as described above is as follows.

  Normally, the dust removing body 30 is supported at a position where the brush 31 is in contact with the upper end of the filter 20 (hereinafter referred to as “top dead center”). When the third driving body is operated to clean the pre-filter body 27, the dust removing body 30 is lowered, and the dust attached to the filter 20 is removed by the brush 31 during that time and falls downward. Then, it accumulates in the dust container 29.

  When the brush 31 of the dust removing body 30 reaches a position where it is in contact with the lower end of the filter 20 (position indicated by a dotted line in FIG. 13A, hereinafter referred to as “bottom dead center”), the automatic cleaning is performed to prepare for the next cleaning. Accordingly, the third driving body is reversely driven to move the dust removing body 30 to the original top dead center.

  When discarding the dust accumulated in the dust container 29, it is possible to easily remove the dust container 29 from the frame body 28 by grasping the handle 29a provided on the dust container 29.

  As described above, according to the present embodiment, since the prefilter body 27 is fixed and the dust removing body 30 is moved up and down, when the prefilter body 27 is cleaned, the prefilter body 27 is attached to the main body 1. An air conditioner that does not protrude from the bottom, is inexpensive, and has an excellent design can be provided.

  In addition, in the said Example, although the dust storage body 29 was provided detachably in the frame 28, you may provide in the main body 1 of an air conditioner so that attachment or detachment is possible.

  Further, in this embodiment, the dust container 29 is attached to the lower part of the prefilter body 27. However, the filter 20 of the prefilter body 27 is placed sideways, that is, the ridgelines of the peaks 20a and valleys 20b are horizontal. When the dust removing body 30 is further moved in the left-right direction, the dust container 29 may be provided at either the left or right end of the frame body 28.

  (Example 4)

  FIG. 14 is a cross-sectional view of an essential part of an air conditioner according to a fourth embodiment of the present invention. In addition, about the same part as the air conditioner in the said Example, description is abbreviate | omitted using the same code | symbol.

  In this embodiment, the prefilter body is fixed to the main body, and when the prefilter body is cleaned, it is moved up and down along the upstream surface of the prefilter body while rotating the dust removing body. .

  In FIG. 14, the air conditioner in the present embodiment includes the prefilter body 27 in the third embodiment, and a dust removing unit 35 is disposed on the upstream side of the prefilter body 27. The dust removing unit 35 is provided along a guide rail 36 provided on the main body 1 so as to be movable in the vertical direction in parallel with the pre-filter body 27 by a fourth driving body (not shown).

  The dust remover unit 35 includes a dust remover 12 described in the first embodiment, a second driver 23 that rotates the dust remover 12 in the clockwise direction, a cover 38 that covers the dust remover 12, and a dust remover. In addition to storing the dust removed from the filter 20 by the twelve brushes 12b, the dust storage body 37 is detachably attached to the cover body 38. 37a is a tooth that is formed on a part of the dust container 37 and spreads dust adhering to the brush 12b. Other configurations are the same as those of the air conditioner described in the third embodiment.

  The cleaning operation of the pre-filter body 27 of the air conditioner in the present embodiment configured as described above is as follows.

  Usually, the dust remover unit 35 is held at a position where the brush 12b of the dust remover 12 provided in contact with the upper end of the filter 20 (hereinafter referred to as “top dead center”). When the second driving body 23 and the fourth driving body (not shown) are operated to clean the prefilter body 27, the dust removing body unit 35 is rotated while the dust removing body 12 rotates clockwise. Gradually descend. In the meantime, dust adhering to the filter 20 is scraped off by the brush 12b, falls into the dust container 37, and gradually accumulates. Dust that adheres to the brush 12 b and does not fall naturally is swept by the toothed teeth 37 a and falls into the dust container 37.

  When the dust removing unit 35 reaches a position where the brush 12b is in contact with the lower end of the filter 20 (hereinafter referred to as “bottom dead center”), the fourth driving body is automatically reversely driven to prepare for the next cleaning. Then, after the dust removing unit 35 is moved to the original top dead center, it automatically stops.

  When the dust container 35 is filled with dust, the dust container 35 can be easily removed by removing it from the cover body 38.

  As described above, according to the present embodiment, since the prefilter body 27 is fixed and the dust removing body unit 35 is moved up and down, when the prefilter body 27 is cleaned, the prefilter body 27 is attached to the main body 1. Therefore, it is possible to provide an air conditioner that is superior in design.

  As described above, the air conditioner according to the present invention is extremely easy to remove dust accumulated on the prefilter body having a substantially saw-toothed cross-sectional shape composed of a peak portion and a valley portion. The present invention is not limited to this, and can be applied to various devices having a filter formed in a substantially saw blade shape in cross section.

Sectional drawing of the air conditioner in 1st Example of this invention (A) Perspective view of the prefilter body of the air conditioner, (b) Disassembled perspective view of the prefilter body Rear perspective view of the same prefilter body AA sectional view of FIG. BB sectional view of FIG. CC sectional view of FIG. Partial perspective view of the dust remover of the air conditioner Cross section of the pre-filter body and dust removal body Cross section of the pre-filter body and dust removal body Cross-sectional view of pre-filter body and dust removal body showing other examples Partial perspective view of the dust removing body showing another example (A) Perspective view of pre-filter body of air conditioner in second embodiment of the present invention, (b) DD sectional view of FIG. 12 (a) (A) Main part sectional drawing of the air conditioner in 3rd Example of this invention, (b) The perspective view of the pre filter body of the air conditioner, (c) The perspective view of the dust remover of the air conditioner Sectional drawing of the principal part of the air conditioner in 4th Example of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Suction port 4 Exhaust port 5 Passage circuit 6, 27 Prefilter body 7 Indoor heat exchanger 8 Blower
12, 30 Dust removal body 13, 29, 37 Dust removal storage body 14 First drive body (drive body)
20 Filter 20a Mountain 20b Valley 20c Flat surface 21, 28 Frame 23 Second drive body

Claims (8)

In the main body having the suction port and the exhaust port, a passing air passage for guiding outside air containing floating dust in the room from the suction port to the exhaust port is formed, and dust is collected in the passage air passage from the upstream side. A pre-filter body and a blower are arranged in order, and the pre-filter body is formed of a sheet-like member, and a cross-sectional shape is formed in a substantially saw-tooth shape made up of peaks and valleys, and holds the outer periphery of the filter An air conditioner comprising a frame and having a flat surface in a valley on the upstream side of the filter. The air conditioner according to claim 1, wherein the flat surface provided in the valley portion of the filter is positioned substantially the same as or upstream from the upstream surface of the frame. A dust removing body made of a brush or the like and contacting the upstream surface of the pre-filter body to remove dust, and a drive body for reciprocating the dust removing body or the pre-filter body by a predetermined distance in the passage air passage, The cross-sectional shape of the part that contacts the filter of the dust remover is formed in a saw blade shape having a peak part and a valley part, and a flat surface is formed on the peak part of the dust remover that contacts the upstream valley part of the filter. The air conditioner according to claim 1 or 2, wherein The air conditioner according to any one of claims 1 to 3, wherein a flat surface is formed at a peak portion on the upstream side of the filter. The air conditioner according to claim 4, wherein a flat surface is formed in a valley portion of the dust removing body. The air conditioner according to any one of claims 1 to 5, wherein a trough portion of the filter is formed as a bridge body that couples two frames facing each other of the frame body. The air conditioner according to any one of claims 1 to 6, wherein a dust container for storing dust removed from the filter is provided at a part of the main body or at one end of the pre-filter body. The air conditioner according to claim 7, wherein the dust container is detachably provided on a part of the main body or on the prefilter body.

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