JP2009287902A - Air conditioner - Google Patents

Abstract

An air conditioner having a uniform dust removal force and a high dust removal efficiency of a filter body is provided.
In a ventilation path (not shown), a filter body (6) comprising a filter (14) and a frame body (15) that holds the outer periphery of the filter (14) and a blower (not shown) are provided, and a predetermined upstream surface of the filter (14) is provided. A dust removing body 19 which is made up of a shaft body 20 and a cleaning body 23 fixed to the shaft body 20 and which collects dust, and a drive body 26 which reciprocates the dust removing body 19 in the air passage are provided. The cross section of 14 contact portions is formed into a substantially wave shape having crest portions 23a, 14a and trough portions 23b, 14b, respectively, and the length of the hair length of the cleaning body 23 is made substantially the same. By making the wave shape, the effective area is increased, the pressure loss is reduced, the strength of the filter body 6 is improved, and the length of the hair length of the cleaning body 23 is made substantially the same so that the filter 14 is in contact with the filter 14. The force of the filter 14 Pass in becomes uniform can be performed without reliably removing the dust left behind in the dust.
[Selection] Figure 2

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner having a function of automatically cleaning a filter body.

  As a conventional air conditioner of this type, there are provided a sheet-like filter having a large number of pores, a brush provided so as to reciprocate up and down along the surface of the filter, and a moving means for reciprocating the brush. And moving the brush and moving the brush up and down to scrape dust accumulated on the upstream surface of the filter (see, for example, Patent Document 1).

In addition, there is an air conditioner in which the cross-sectional shape of the filter is formed in a corrugated shape or a comb blade shape so that the effective area is increased in a predetermined space so that the flow of outside air to the blower becomes smooth ( For example, see Patent Document 2). When the flow of outside air to the blower becomes smooth, that is, when the pressure loss is reduced, the blower can be reduced in output, that is, downsized and have a long life, and the amount of dust collected by the filter can be increased. In addition, by forming the cross-sectional shape of the filter into a corrugated or comb-like shape, a large number of bent portions are secured, so the strength of the entire filter is improved and the filter becomes clogged by the collected dust. Also, it has the effect of overcoming the suction force of the blower and preventing its deformation.
JP 2001-170430 A JP-A-6-193904

  However, a conventional brush as disclosed in the above-mentioned Patent Document 1 is adopted in a conventional air conditioner having a filter in which a cross section as disclosed in the above-mentioned Patent Document 2 is formed in a corrugated shape or a comb blade shape, If you try to remove dust accumulated on the filter with the brush, the protruding margin of the brush, that is, the length from the base of the brush to the tip is almost uniform. In this case, the valleys of the filter are cleaned in the vicinity of the tip of the brush, and the contact force between the brush and the filter becomes uneven in the valleys and the peaks, resulting in a problem that the dust removal efficiency is lowered.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide an air conditioner having uniform dust removal force and high dust removal efficiency of the entire filter body.

  In order to solve the above-described conventional problems, the air conditioner of the present invention forms a ventilation path that guides outside air containing floating dust in the room from the suction port to the exhaust port in the main body case having the suction port and the exhaust port. And a dust collecting filter body composed of a filter having a large number of pores and a frame body that holds the outer periphery of the filter, and a blower in the ventilation path, and an upstream surface of the filter. A dust removing body that is made up of a shaft body and a cleaning body fixed to the shaft body and collects dust, and either the dust removing body or the filter body is reciprocated by a predetermined distance in the ventilation path. And a cross section of the contact portion between the dust removing body and the filter is formed into a substantially wave shape having a peak portion and a valley portion, respectively, and the length of the hair length of the cleaning body is substantially the same. With many details By forming the cross-sectional shape of the filter having a substantially wave shape, the effective area can be increased in a predetermined space, and the flow of outside air to the blower can be smoothly performed, that is, the pressure loss is reduced. Can reduce the output, reduce the size and extend the service life, increase the amount of dust collected by the filter body, and improve the strength of the filter body. It can be overcome and its deformation can be prevented.

In addition, by making the cross section of the dust removing body in contact with the filter having a substantially corrugated cross section into a corrugated shape, even if the cleaning body tries to deform left and right, the corrugated peaks, valleys, and peaks and troughs Deformation is reduced by the connecting slopes. In particular, by making the length of the hair of the cleaning body substantially the same in the ridges, valleys, and slopes of the cleaning body, the contact forces that contact the ridges, valleys, and slopes are all uniform, and the entire filter area In this way, there is no unevenness in the removal of dust and dust can be removed reliably.
Further, when any of the dust removing body or the filter body is moved by the first driving means, the peak portion, the valley portion, and the inclined portion serve as guide rails, respectively. Due to the uniformity, the dust removing body does not shake from side to side, and the upstream surface of the filter is surely moved straight to perform the dust removing operation without leaving any dust. If the valley of the filter is positioned upstream of the upstream surface of the frame holding the periphery of the filter, dust will not be caught by the frame during cleaning, etc. It can be done more smoothly.

  The air conditioner of the present invention can provide an air conditioner having a uniform dust removal force and high dust removal efficiency of the entire filter body.

  According to a first aspect of the present invention, a ventilation path is formed in the main body case having a suction port and an exhaust port to guide outside air containing indoor floating dust from the suction port to the exhaust port. A dust collecting filter body composed of a filter having a filter body and a frame body that holds the outer periphery of the filter, a blower, and contacting the upstream surface of the filter with a predetermined pressure, and a shaft body and the shaft A dust removing body comprising a cleaning body fixed to the body, and collecting first dust, and a first driving means for reciprocating a predetermined distance in the ventilation path of either the dust removing body or the filter body. And a filter having a large number of pores in which the cross section of the contact portion of the filter is formed in a substantially wave shape having a crest and a trough, respectively, and the length of the hair of the cleaning body is substantially the same. The cross-sectional shape of the The effective area within the predetermined space can be increased, and the flow of outside air to the blower can be smoothly performed, that is, the pressure loss can be reduced, so that the blower can be reduced in output and reduced in size and length. The service life can be increased, the amount of dust collected by the filter body can be increased, and the strength of the filter body can be improved. Therefore, even in a clogged state, the suction force of the blower can be overcome and its deformation can be prevented.

  In addition, by making the cross section of the dust removing body in contact with the filter having a substantially corrugated cross section into a corrugated shape, even if the cleaning body tries to deform left and right, the corrugated peaks, valleys, and peaks and troughs Deformation is reduced by the connecting slopes. In particular, by making the length of the hair of the cleaning body substantially the same in the ridges, valleys, and slopes of the cleaning body, the contact forces that contact the ridges, valleys, and slopes are all uniform, and the entire filter area In this way, there is no unevenness in the removal of dust and dust can be removed reliably. Further, when any of the dust removing body or the filter body is moved by the first driving means, the peak portion, the valley portion, and the inclined portion serve as guide rails, respectively. Due to the uniformity, the dust removing body does not shake from side to side, and the upstream surface of the filter is surely moved straight to perform the dust removing operation without leaving any dust. If the valley of the filter is positioned upstream of the upstream surface of the frame holding the periphery of the filter, dust will not be caught by the frame during cleaning, etc. It can be done more smoothly.

  In the second invention, in particular, a flat surface is formed in each of the valley of the filter of the first invention and the peak of the cleaning body that contacts the valley, and the valley of the filter has a substantially triangular shape. In this case, the outside air containing dust is guided toward the apex of the valley along the inclined portion that connects the valley to the valley, so that the dust tends to accumulate and is compressed, so that it is difficult to remove the dust. By forming a flat surface in the upstream trough, dust is not compressed and deposited on the bottom of the trough, but accumulates in a flat shape, so it is easy to remove.

  In the third aspect of the invention, in particular, the dust removing body of the first or second aspect of the invention is configured to be rotatable, the contact resistance between the filter and the dust removing body can be reduced, and the driving force of the first driving means can be reduced. It is possible to reduce the size and weight. As a matter of course, the contact speed between the two improves the dust removal effect when the filter speed is higher than that of the dust remover.

  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

  FIG. 1 is a cross-sectional view of an air conditioner according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view showing a mounting state of a filter body and a dust removing body of the air conditioner, and FIG. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 3, and FIG. 5 is a perspective view of the cleaning body of the dust removing body.

  1 to 5, reference numeral 1 denotes a main body case attached to a wall 2 in the room, an exhaust port 3 for sucking outside air containing indoor dust upward, and exhaust for discharging clean air downward into the room. Ventilation paths 5 are formed, each having a port 4, and communicating the suction port 3 and the exhaust port 4.

  In the ventilation path 5, a filter body 6 that captures passing dust from upstream to downstream, a heat exchanger 7 that supplies cool air and warm air, and indoor air is sucked from the suction port 3, and the heat exchanger 7 The blower 8 for discharging the air heat-exchanged by the heat exchanger 7 from the exhaust port 4 is housed.

  Further, in the main body case 1, a control body 9 for controlling the rotational speed of the blower 8 and the energy of cool air and warm air of the heat exchanger 7 is housed in the control chamber 10.

  In addition, an opening / closing lid 11 for discarding dust captured by the filter body 6 is provided in a part of the main body case 1. The filter body 6 includes a thin sheet-like material having a large number of pores, a filter 14 having a cross section formed by a crest 14a, a trough 14b, and an inclined portion 14c in a comb-blade shape. It is comprised from the frame 15 holding the periphery. In the present embodiment, the filter 14 is fixed to the frame body 15 so that the valley portion 14b is positioned on the upstream side of the upstream surface 15a of the frame body 15.

  A pair of guides 16 are provided on the upstream surface 15a of the frame 15 so as to face the left and right ends of the filter 14, respectively, and are erected between the upper end 15b and the lower end 15c of the frame 15. The guide 16 is formed with a long bearing 16a that movably supports both ends of a shaft body 20 of a dust removing body 19 described later.

  Further, on the upstream surface 15 a of the frame 15, the gear receiving wall 21 having a gear 21 a formed in parallel to the guide 16 and positioned on the outer side of the right guide 16 is positioned inside the left guide 16. In parallel with the guide 16, a lower roller receiving groove 15 d that is movably fitted to a roller 22 of a dust removing body 19 to be described later is formed.

  Reference numeral 15e denotes a pair of protrusions formed on the back surface of the frame body 15, that is, the downstream surface 15f so as to protrude downstream.

  Reference numeral 19 denotes a dust removing body for removing dust collected by the filter 14 of the filter body 6 to make the filter 14 fresh and allow the outside air to pass smoothly. The shaft body 20 and a sheet made of a soft material are used. A cleaning body mounting portion 20a to which the cleaning body 23 is attached, and the shaft body 20 is formed in a comb blade shape having a radial shape extending horizontally and having a distal end side of the same shape as the cross-sectional shape of the filter 14. A shaft portion 20 b is provided at both ends and is movably held by the long bearings 16 a of the pair of guides 16. Moreover, the upper end and lower end of the cleaning body 23 are each formed in the shape of a comb blade having the same shape as the filter 14 and the cleaning body mounting portion 20b.

  As a result, the length of each part of the cleaning body 23 is the same (L1 = L2 = L3) including the crests 23a to the valleys 23b and the inclined parts 23c formed on the cleaning body 23, and contacts the filter 14. The contact pressure is also uniform, and the dust removal effect is uniform without leaving any ridges 14a, valleys 14b or inclined portions 14c of the filter 14.

  Reference numeral 26 denotes a motor or the like, which is a driving body serving as a first driving means for moving the dust removing body 19 from the upper end 15 b to the lower end 15 c of the frame body 15, and is connected to one end of the shaft body 20. 27 is fixed or fitted to the shaft portion 20b of the shaft body 20 and meshes with the gear 21a of the gear receiving wall 21 to control the rotation of the driving body 26 to a predetermined rotation, that is, to control the rotation of the dust removing body 19. It is a rotation drive gear for.

  Reference numeral 22 denotes a roller rotatably attached to the end of the shaft portion 20b on the opposite side of the drive body 26 of the shaft body 20, and the upper, lower, left, and right sides of the roller 22 are roller receiving grooves (lower surfaces) provided in the frame body 15. ) 15d and a roller receiving groove (upper) 1a provided in the main body case 1 are rotatably supported, and serve to allow the dust removing body 19 and the driving body 26 to move between normal positions without blurring. Is.

  Reference numeral 28 denotes a frame support portion that is formed on the main body case 1 and holds the outer periphery of the frame body 15, and 29 is a guide support body that holds the upper portions of the left and right guides 16. ing. 31 is a dust box that receives and stores the dust removed by the dust removing body 19, and is provided with a protrusion fitting hole 31a that is detachably fitted to the protrusion 15e provided at the lower portion of the downstream surface 15f of the frame 15, and dust. It is comprised from the accommodating part 31b which receives and accommodates.

  The dust removed from the filter 14 by the lowering of the dust removing body 19 is stored in the storage portion 31b. When the accumulated dust is discarded, the opening / closing lid 11 provided on the front surface of the main body case 1 is opened, and the storage portion 31b is opened. Can be easily removed from the frame 15.

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

  After selecting either cooling or heating with a remote controller (not shown), setting a desired temperature and wind strength, and turning on an operation switch (not shown), the control body 9 causes the blower 8 and The operation of the compressor (not shown) is started, and the outside air in the room flows in from the suction port 3 and passes through the filter body 6. At this time, dust contained in the outside air is captured. The outside air cleaned by the filter body 6 is heat-exchanged by the heat exchanger 7, reaches a predetermined temperature or humidity, passes through the blower 8, and is discharged from the exhaust port 4 into the room.

  When the cooling or heating operation for a predetermined time is completed, the control body 9 starts the operation of the driving body 26, and the dust removing body 19 descends while rotating. During this time, the dust trapped on the upstream surface of the filter 14 is moved downward. And is stored in the dust box 31. When the dust removing body 19 is lowered to a predetermined position, for example, the lower end of the filter 14, the driving body 26 is reversed, moves the dust removing body 19 upward, and stops at a predetermined position, for example, the upper end of the filter 14. As a result, the dust adhering to the filter 14 is removed cleanly, and no dust remains, so that the outside air smoothly passes through the filter 14 again, and the fan 8 is not loaded. Vibration and noise will also be reduced.

  Further, in the present embodiment, the filter 14 and the cleaning body 23 formed in a comb blade shape having a crest 14a, a valley 14b, and an inclined portion 14c in cross section have substantially the same shape, and each of the cleaning bodies 23, Since the entire length is formed in each of the valley portion 23b, the peak portion 23a, and the inclined portion 23c, the contact force between the filter 14 and the cleaning body 23 is the same in all locations, and the dust captured by the filter 14 Is peeled off and removed by the cleaning body 23 without unevenness on the entire surface.

  When a predetermined amount of dust is stored in the dust box 31, the opening / closing lid 11 provided in the main body case 1 may be opened, the dust box 31 may be removed from the frame body 15 and discarded.

  The dust box 31 is provided with a dust sensor or the like for detecting the amount of dust, and when the dust reaches a predetermined amount, the user is notified of display means (not shown) such as an LED or a buzzer. Needless to say, if the notification is made via means (not shown), the dust treatment becomes more convenient.

  (Example 2)

  FIG. 6 is a cross-sectional view showing the configuration of the filter body and the dust remover of the air conditioner according to the second embodiment of the present invention, and FIG. 7 is an exploded perspective view of the dust remover of the air conditioner. In addition, about the same part as the air conditioner in the said 1st Example, the same code | symbol is provided and those description is abbreviate | omitted.

  In the air conditioner of the present embodiment, a peak straight portion 14d is formed as a flat surface on the peak portion 14a of the filter 14, and a valley straight portion 14e is formed as a flat surface on the valley portion 14b. As for the contact portion with the filter 14 as well, a flat cleaning body trough straight portion 23d and a cleaning body crest straight portion 23e are formed in each of the trough portion 23b and the crest portion 23a.

  As shown in FIG. 7, the cleaning body mounting portion 20 a of the shaft body 20 to which the cleaning body 23 is mounted in the present embodiment has a cylindrical appearance and a comb blade shape on the outer surface. A plurality of cleaning body holding grooves 20c for attaching 23 is also formed in a comb blade shape.

  Thereby, since a sharp inclined surface is not formed in the peak part 14a or the valley part 14b of the filter 14, in particular, dust accumulates on the flat valley straight part 14e of the filter 14, and thus is easy to remove. . In addition, since the length from the root to the tip of the cleaning body valley straight part 23d and the cleaning body peak straight part 23e of the cleaning body 23 is the same, the contact force with the filter 14 is always the same. Uniform cleaning performance can be obtained.

  (Example 3)

  FIG. 8 is an exploded perspective view of the dust remover of the air conditioner according to the third embodiment of the present invention. In addition, about the same part as the air conditioner in the said Example, the same code | symbol is provided and those description is abbreviate | omitted.

  In FIG. 8, the dust remover 33 of the air conditioner according to the present embodiment includes a shaft body 34 in which a plurality of radial ribs 34a are formed in the outer peripheral longitudinal direction, and a cleaning body 35 fixed to the ribs 34a. The rib 34a has a comb-shaped cross section having a crest 34b, a trough 34c, and an inclined portion 34d. The crest 34b and the trough 34c are formed by a crest straight portion 34e and a trough straight portion 34f, respectively. Is provided. Further, the rib 34a is provided with a brush holding groove 34g having a crest 34h and a trough 34i having the same shape as the rib 34a.

  The cleaning body 35 includes a brush body 36 made up of a large number of thin rod brushes having the same overall length, and a brush holder 37 that is inserted into and fixed to the brush holding groove 34g while holding the root of the brush body 36. The brush holder 37 is also formed with a holder peak straight portion 37a and a holder valley straight portion 37b.

  As described above, according to the present embodiment, when the cleaning body 35 is attached to the shaft body 34, the brush holding body 37 of the cleaning body 35 is simply inserted and fixed in the brush holding groove 34g provided in the rib 34a. Therefore, the dust removing body 33 can be easily manufactured and assembled, and can be provided at low cost.

  (Example 4)

  FIG. 9 is a cross-sectional view showing the relationship between the dust remover and the filter body of the air conditioner in the fourth embodiment of the present invention, and FIG. 10 is an exploded perspective view of the dust remover. In addition, about the same part as the air conditioner in the said Example, the same code | symbol is provided and those description is abbreviate | omitted.

  In the first to third embodiments, the filter body is fixed at a predetermined position, and the dust removing body is moved along the surface on the upstream side of the filter body. Is fixed and the filter body is moved.

  9 and 10, reference numeral 39 denotes a filter body including a filter 40 and a frame body 41 that holds the outer periphery of the filter 40. Both ends of the frame body 41 are movable by a filter movable support portion 1 b provided in the main body case 1. In addition, a gear receiver 41 a extends in the vertical direction on one side of the frame body 41. Reference numeral 42 denotes a drive body (first drive means) composed of a motor or the like for driving the filter body 39 in the vertical direction. The drive body 42 meshes with the gear receiver 41a and controls the power of the drive body 42 to a predetermined speed. It is connected with.

  Reference numeral 44 denotes a dust remover, which has shafts 45a pivotally supported by dust remover support portions 38 provided on the body case 1 at both ends, and a shaft body 45 having a cleaning body holding groove 45b on one side. The end face is inserted and fixed in the cleaning body holding groove 45b, and is constituted by a cleaning body 46 formed by punching from a sheet-like elastic member. The end face shape of the cleaning body holding groove 45b has a comb-blade cross section with a crest 45c, a trough 45d, and an inclined portion 45e, and the crest 45c and the trough 45d have a crest straight portion 45f and a trough, respectively. A straight portion 45g is provided. The bottom 45h of the cleaning body holding groove 45b is formed in parallel with the end surface of the cleaning body holding groove 45b.

  Furthermore, the shape of the both ends of the cleaning body 46 is the same shape as the bottom part 45h of the cleaning body holding groove 45b, and is formed in parallel. In other words, the cleaning body 46 is formed such that the length L of each portion in the longitudinal direction is constant regardless of the peak portion, the valley portion, or the inclined portion.

  Since the air conditioner in the present embodiment is configured as described above, when the driving body 42 is operated, the filter body 39 having the filter 40 whose cross section is formed in a comb blade shape moves, The cleaning body 46 of the dust removing body 44 whose end face is also formed in a comb blade shape can forcibly peel the dust from the filter 40. As described above, even if the filter body 39 is moved, it is possible to provide an air conditioner having a uniform dust removal force and high dust removal efficiency of the entire filter body 39.

  Further, since the dust removing body 44 is configured to be rotatable, the contact resistance between the filter 40 and the dust removing body 44 is reduced, and the driving force of the driving body 42 can be reduced, so that the size and weight can be reduced.

  In the present embodiment, the dust removing body 44 is rotatably provided in the main body case 1, but may be manually rotated.

  Further, instead of forming the cleaning body 46 from a sheet-like material, the cleaning body 46 may be formed of an aggregate of small diameter brushes.

  As described above, the air conditioner according to the present invention makes the dust removal force uniform over the entire filter of the filter body and has high dust removal efficiency of the entire filter body, and can be used for various air conditioners.

Sectional drawing of the air conditioner in 1st Example of this invention Cross-sectional view showing how the filter body and dust remover of the air conditioner are installed The figure which shows the attachment composition of the filter body and the dust removal body AA sectional view of FIG. The perspective view of the cleaning body of the dust removing body Sectional drawing which shows the structure of the filter body and dust removal body of an air conditioner in 2nd Example of this invention. The exploded perspective view of the dust remover of the air conditioner The disassembled perspective view of the dust remover of the air conditioner in 3rd Example of this invention Sectional drawing which shows the relationship between the dust removal body and filter body of the air conditioner in 4th Example of this invention Exploded perspective view of the dust remover

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body case 3 Suction port 4 Exhaust port 5 Ventilation path 6, 39 Filter body 8 Blower
14, 40 Filters 14a, 23a, 34b, 34h, 45c Mountain portions 14b, 23b, 34c, 34i, 45d Valley portions 14c, 23c, 34d, 45e Inclined portions 15, 41 Frame body
19, 33, 44 Dust removal body 20, 34, 45 Shaft body 23, 35, 46 Cleaning body 23d Cleaning body trough straight part (flat surface)
23e Cleaning body pile straight part (flat surface)
26, 42 Driving body (first driving means)
34e, 45f Mountain straight part (flat surface)
34f, 45g Valley straight part (flat surface)
37a Retainer mountain straight part (flat surface)
37b Retainer valley straight part (flat surface)

Claims (3)

A main body case having a suction port and an exhaust port is formed with a ventilation path that guides outside air containing indoor floating dust from the suction port to the exhaust port, and a filter having a large number of pores in the ventilation path and the filter A filter body for collecting dust, which is constituted by a frame body that holds the outer periphery of the filter, and a blower are provided. The filter body contacts the upstream surface of the filter with a predetermined pressure, and is fixed to the shaft body and the shaft body. A dust removing body configured to collect dust, and a first driving means for reciprocating a predetermined distance in the ventilation path of either the dust removing body or the filter body, and a contact portion between the dust removing body and the filter The air conditioner is characterized in that the cross section is formed into a substantially wave shape having a peak portion and a valley portion, respectively, and the lengths of the hairs of the cleaning body are substantially the same. 2. The air conditioner according to claim 1, wherein a flat surface is formed in each of a valley portion of the filter and a peak portion of the cleaning body that contacts the valley portion. The air conditioner according to claim 1 or 2, wherein the dust removing body is configured to be rotatable.

Images