JP4040433B2 - Air conditioner indoor unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner that cleans sucked indoor air by passing it through an air filter and adjusts temperature and humidity, and in particular, rational and efficient dust adhering to the air filter. The present invention relates to an air conditioner capable of processing.
[0002]
[Prior art]
FIG. 1 shows an example of a general structure of a conventional air conditioner. In this air conditioner, the indoor air sucked from the suction port such as a suction grill provided on the upper surface or the front surface by the fan 3 is heat-exchanged by passing through the heat exchanger 1, and then the louver 13 is provided. It blows out into the room through the air outlet 20. At this time, in order to remove the dust in the room mixed with the sucked air, an air filter 4 is attached to the suction port to clean the room air to be conditioned. In a conventional air conditioner that removes dust using such an air filter 4, the air filter 4 is clogged by dust trapped by the air filter 4 as the usage time elapses, and the air flow resistance of the room air increases to increase the air flow. There is a problem that the capacity of the harmony machine decreases.
Therefore, in order to remove the accumulated dust on the air filter 4, the air filter 4 is periodically removed from the air conditioner, and dust is removed by suction means such as a vacuum cleaner or the air filter 4 is washed manually. The air filter needs to be cleaned. In the figure, 2 is a drain pan for receiving moisture adhering to the heat exchanger 1.
The thing described in patent document 1 is known as an attempt to save the effort of the air filter cleaning by the above-mentioned manual work. In this known example, the air filter is configured as a roll-up type long sheet, and is provided with a cleaning mechanism provided with a rotating roller for sucking and cleaning dust adhering to the air filter surface and a dust receiver. An air conditioner has been proposed.
As another known example, Patent Document 2 proposes an air conditioner having a filter integrated with a suction port in which fixed air filters are arranged at appropriate intervals and can be moved left and right on the front surface. Has been.
[0003]
[Patent Document 1]
JP-A-9-184656 [Patent Document 2]
Japanese Utility Model Publication No. 60-185132 [0004]
[Problems to be solved by the invention]
However, in this Patent Document 1, dust or the like removed from the air filter remains accumulated in the dust receiver, and the accumulated dust adheres to the dust receiver, and the cleaning gives a new trouble to the user. There is. In addition, this known example is structurally complicated and expensive.
In Patent Document 2, another new cleaning tool is required to remove dust adhering to the filter, which imposes a cost burden on the user, and lacks practicality. The present invention, which has been unavoidable, has been made in view of these circumstances. An air filter that can be used for a normal ordinary household vacuum cleaner and is easy to clean and inexpensive. It aims at provision of the air conditioner provided with the cleaning means.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a sheet-like air filter, an air filter, and an air filter, in an indoor unit of an air conditioner that sucks room air from a suction port and circulates the air again through a blowout port. An air filter drive device that reciprocates through the suction port , and an upper and lower two stages disposed along the air filter so as to contact the air filter and separating dust adhering to the air filter from the air filter and withdrawal means, and dust collecting chamber disposed along said leaving means between the withdrawal means of the two upper and lower stages so as to accommodate the said disengaging temporarily the brushed-off dirt by means, the dust collecting chamber to be connected to the communication form, and a suction portion for face the suction port of the suction means for sucking the dust separated from the air filter, the dust collecting Is connected the with formed by tapered so and one end a landscape is narrowed in a direction perpendicular to the traveling direction of the air filter, the suction unit is in communication like the end of the narrow side of the dust collecting chamber It is comprised as an indoor unit of the air conditioner characterized by being made.
In this way, when the suction part is connected to the dust collecting chamber in a continuous manner, the dust removed by the detaching means does not scatter to the outside, and the suction of a cleaner or the like is performed cleanly and efficiently. Collected by means.
In this case, it is preferable that the air filter is reciprocally driven repeatedly by the air filter driving device. Thereby, it is configured so that dust on the air filter can be easily removed.
In addition, the indoor unit of the air conditioner has a dust removal passage through which all or part of the circulating air from the fan that sucks indoor air is blown out through the air filter, and all of the circulating air is blown into the room from the outlet. When the normal air passage is formed, the air blown from the fan is blown onto the air filter and can be used to remove dust adhering to the air filter.
Therefore, the dust removal efficiency can be improved by providing the first passage switching means that closes the dust removal passage during the air conditioning operation and opens the dust removal passage during the dust collection operation when the air conditioning operation is stopped. it can.
In this case, by providing the second passage switching means that opens the normal air passage during the air conditioning operation and closes part or all of the normal air passage during the dust collection operation when the air conditioning operation is stopped. Efficient dust collection can be achieved.
As the first passage switching means as described above, a first louver provided at the air outlet can be used.
As the second passage switching means, a second louver provided at a branch portion of the normal air passage and the dust removal passage can be used.
Since these existing louvers may be used, the cost is not increased.
When the louver intermittent operation means for intermittently driving the second louver is further provided, the air pressure for dust removal applied to the air filter can be intermittently changed. The payout efficiency is significantly improved.
The air filter is preferably composed of a long sheet-like air filter.
When shifting from the air-conditioning operation state to the air-conditioning operation stop state, the air filter drive device is reversed by a predetermined amount, and the operation is stopped with the used air filter positioned at the inlet of the ceiling surface, If the air filter is returned to the position before the operation is stopped when the operation is resumed, the clogging of the air filter can be reduced as much as possible.
,
[0006]
Embodiment
Next, an embodiment of the present invention will be described with reference to the drawings for understanding of the present invention. FIG. 1 is a side sectional view of an air conditioner according to a conventional example, FIG. 2 is a perspective view showing an example of an air filter that can be used in an air conditioner according to an embodiment of the present invention, and FIG. FIG. 4 is an external perspective view for explaining a use state of the air conditioner according to one embodiment of the present invention, FIG. 4 is a side sectional view of the air conditioner according to the same embodiment, and FIG. FIG. 6 is a front view of the portion indicated by the arrow A in FIG. 4, FIG. 7 is a side sectional view of an air conditioner according to another embodiment, and FIG. Fig. 9 is a side sectional view of the dust collecting chamber in the air conditioner shown in Fig. 7, Fig. 9 is a front view of the portion A in Fig. 7, and Fig. 10 is a side sectional view of an air conditioner according to another embodiment. 11 is a perspective view showing a use state in the air conditioner shown in FIG. 10, and FIG. It is a surface view.
First, a first embodiment will be described with reference to FIGS. As shown in FIG. 4, a cassette type air filter unit 6 is detachably attached in the front panel 11 of the indoor unit indicated as a whole by 21 a. As shown in FIG. 2, the air filter unit 6 includes a disposable long sheet-like air filter 4 wound around an axis 6b and a cassette case 6a.
A large number of slits 10 are provided at both ends of the air filter 4 in the width direction (perpendicular to the winding direction), and a plurality of air filter drive gears 5 in the indoor unit 21a are engaged with the slits 10, and the shaft center. 6a and the air filter drive gear 5 are rotated by a drive motor (not shown), whereby the air filter 4 is fed out from the cassette case 6a and recovered into the cassette case 6a. The slack of the air filter 4 can be removed by separating the air filter drive gear 5 and the drive motor for the shaft core 6b as necessary.
[0007]
On the back surface of the indoor unit 21a, a storage portion 6c for storing the fed-out air filter 4 in a strip shape is provided.
Also, a dust collection chamber 22 is provided at the back of the front panel 11 of the indoor unit 21a indicated by an arrow A, and upper and lower two-stage brushes (an example of detachment means) that contact the surface of the air filter in the dust collection chamber 22. ) 7 (upper brush 7a, lower brush 7b) are attached. The dust collection chamber 22 is formed in a taper shape so as to become narrower toward the right end as shown in FIG. 6 when viewed from the front of the indoor unit 21a. The upper brush 7a and the lower brush 7b are attached along the tapered or horizontal dust collecting chamber 22 partition, respectively. A suction port 9 is provided at the narrow end of the dust collecting chamber 22 on the taper as shown in FIG. An openable / closable lid (not shown) is attached to the suction port 9.
Further, as indicated by an arrow X, the air outlet 20 of the normal air passage 23a through which the fan 3 blows out from the air outlet 20 through the heat exchanger 1 is shut off or opened, and the air blown out. A first louver 13 (an example of a first passage switching means) is provided for adjusting the direction of the first louver.
Therefore, in the air conditioner 21a according to this embodiment, the air filter drive motor (not shown) is rotated at the start of operation, and the air filter 4 is sequentially fed out and disposed at a predetermined position covering the heat exchanger 1. Thereafter, the air filter 4 is unrolled as the operating time passes, and when all the air filters 4 in the air filter unit 6 are unwound, the user is notified by a display or warning sound that cleaning is necessary.
Here, if the user chooses to clean by an input from a switch (not shown) provided in the indoor unit 21a or a remote controller, the air filter drive motor rotates in the reverse direction to drive the shaft 6b and the air filter. The gear 5 is rotated, and the air filter 4 is collected in the air filter unit 6. At this time, as shown in FIG. 5, the upper and lower brushes 7 a and 7 b provided on the inner side of the front panel 11 and in contact with the air filter 4 wipe off dust and the like adhering to the surface of the air filter 4.
At the same time, as shown in FIG. 3, a suction hose H of a suction means such as a vacuum cleaner is connected from the outside to the suction port 9 provided at the lower part of the front panel 11 of the indoor unit, and the suction means such as a vacuum cleaner is driven. The dust that has been wiped off is continuously sucked and collected by suction means such as a vacuum cleaner. At this time, since the dust collection chamber 22 is tapered as described above, the suction force in the dust collection chamber 22 acts on the air filter 4 without unevenness, and the dust collection efficiency is improved.
Thus, dust collected on the air filter 4 is removed while collecting the air filter 4 in the air filter unit 6, and at the same time, dust removed by suction means such as a vacuum cleaner is collected. The filter 4 is always in a new state from which dust has been removed and is collected by the air filter unit 6.
When all the air filters 4 are collected in the air filter unit 6 with dust and the like removed, the air filter 4 is placed at a predetermined position as described above, and normal operation is resumed.
When the air filter 4 is rotated in the reverse direction as described above, dust and the like can be more efficiently removed by the brush 7 if the reverse rotation and the feeding out are alternately performed at a ratio of 2: 1, for example.
[0008]
Next, the indoor unit 21b which concerns on the 2nd Embodiment of this invention is demonstrated based on FIGS. Here, a second louver 14 (second passage switching means) that is openable and closable at a branch portion between the normal air passage 23a and a dust removal passage 23b that branches from the normal air passage 23a and reaches the dust collection chamber 22. An example) and a motor (not shown) for driving the same. Further, the dust removing passage 23 b and the dust collecting chamber 22 are communicated with each other through an opening 24. The opening 24 is opened between the brushes 7a and 7b as shown. As a result, the dust collecting passage 32 b and the dust collecting chamber 22 can be ventilated through the air filter 4 and the opening 24.
When the air conditioning operation is started, the air filter drive motor is rotated, and the air filter 4 is sequentially fed out and disposed at a predetermined position covering the heat exchanger 1. Thereafter, the air filter 4 is unwound as time passes, and all the air filters 4 in the air filter unit 6 are unwound. Then, the air filter driving motors are rotated in the reverse direction so that the air filters 4 are moved into the air filter unit 6. To recover. By this operation, the brushes 7a and 7b provided near the air filter unit 6 come into contact with the air filter 4, and dust and the like adhering to the surface are removed. At this time, the first louver 13 of the indoor unit 21b is closed, the second louver 14 is opened, and the fan 3 is operated. As a result, the suction air urged by the fan 3 passes through the dust removal passage 23b and enters the dust collection chamber 22 through the opening 24 because the first louver 13 is closed. At this time, since air is ejected from the back surface of the air filter 4 to the surface, dust and the like adhering to the surface of the air filter 4 can be easily separated from the surface of the air filter 4 by the wind pressure in addition to the effect of the brushes 7a and 7b. Thus, it is efficiently recovered from the suction port 9 to a suction means such as a vacuum cleaner. Hereinafter, since it is the same as 1st Embodiment, description is abbreviate | omitted.
Further, when the air filter drive motor is rotated in the reverse direction, if the fan 3 is operated while the first louver 13 is closed and the second louver 14 is opened or closed at a constant speed, the fan 3 is energized. When the second louver 14 is closed, the sucked air is retained in the normal air passage 23a in a pressurized state by the fan 3. However, when the second louver 14 is opened, pressurized air enters the dust collection chamber 22 through the dust removal passage 23 b and is ejected from the back surface of the air filter 4 to the surface. Since the second louver 14 repeatedly opens and closes in this manner, the pressure of the air flowing into the dust collection chamber 22 can be made unsteady, so that dust and the like adhering to the air filter can be effectively peeled off from the surface of the air filter 4. Can be made.
Next, an indoor unit 21c according to a third embodiment of the present invention will be described with reference to FIGS. Also in this case, the air filter unit 6 is stored in the indoor unit front panel 11. Further, as in the first embodiment, the dust removing passage 23b is not provided, but a horizontally long opening 25 is formed in a part of the front panel 11 constituting the dust collecting chamber 22, and a part of the air filter 4 is formed. It is exposed to the outside.
In this configuration, when all of the air filter 4 in the air filter unit 6 is drawn out and then the air filter drive motor is rotated in the reverse direction and the air filter 4 is collected in the air filter unit 6, as shown in FIGS. In addition, by bringing the suction port of the suction means such as a vacuum cleaner close to the opening 25, the dust removed by the brushes 7a and 7b can be directly sucked and removed. That is, while collecting the air filter 4 in the air filter unit 6, dust attached to the air filter 4 can be removed, and at the same time, dust removed by a vacuum cleaner or the like can be collected. When all the air filters 4 are collected in the air filter unit 6 in a state where dust is removed, the air filters 4 are arranged at predetermined positions in the same manner as described above, and normal air conditioning operation is resumed.
In addition, a lid may be provided on the opening 25 of the front panel 11 so that the air filter 4 is exposed and not contaminated except during cleaning.
Next, a fourth embodiment of the present invention will be described. This embodiment relates to an air conditioner having an inlet on at least a ceiling surface. In this case, when shifting from the operation state to the operation stop state, the motor that drives the air filter 4 is reversely rotated by a predetermined amount so that the used air filter 4 is positioned at a position facing the suction port on the ceiling surface. Stop operation. On the other hand, when shifting from the operation stop state to the operation state, the air filter 4 is fed out by a predetermined amount (the same amount as the reverse rotation amount). Thereby, it is possible to prevent dust or the like that accumulates on the air filter 4 on the ceiling side when the operation is stopped from adhering to the air filter 4 in use, and to prevent the air filter 4 from becoming unnecessarily dirty.
[0009]
【The invention's effect】
According to the present invention, in an indoor unit of an air conditioner that sucks indoor air from a suction port and circulates the air again after passing through a blowout port, the sheet-like air filter and the air filter are connected to the suction port. An air filter driving device that reciprocates through , and an upper and lower two-stage detachment means that is disposed along the air filter so as to come into contact with the air filter and separates dust adhering to the air filter from the air filter; A dust collecting chamber disposed along the detaching means between the upper and lower detaching means to temporarily store the dust removed by the detaching means, and connected to the dust collecting chamber in a communicating manner. is, and a suction portion for face the suction port of the suction means for sucking the dust separated from the air filter, the dust collecting chamber, said Eafi In a direction perpendicular to the traveling direction of the motor with becomes formed in a tapered shape so and one end a landscape is narrowed, the suction unit is connected to the communication like the end of the narrow side of the dust collecting chamber When the suction part is connected to the dust collection chamber, the dust removed by the detaching means is scattered outside. And is collected cleanly and efficiently by suction means such as a vacuum cleaner.
[Brief description of the drawings]
FIG. 1 is a side sectional view of an air conditioner according to a conventional example.
FIG. 2 is a perspective view showing an example of an air filter that can be used in an air conditioner according to an embodiment of the present invention.
FIG. 3 is an external perspective view for explaining a usage state of the air conditioner according to the embodiment of the present invention.
FIG. 4 is a side sectional view of an air conditioner according to the same embodiment.
5 is a side sectional view of a dust collection chamber in the air conditioner shown in FIG.
6 is a front view of a portion indicated by an arrow A in FIG. 4;
FIG. 7 is a side sectional view of an air conditioner according to another embodiment.
8 is a side sectional view of a dust collection chamber in the air conditioner shown in FIG.
FIG. 9 is a front view of a portion indicated by an arrow A in FIG.
FIG. 10 is a side sectional view of an air conditioner according to another embodiment.
11 is a perspective view showing a use state of the air conditioner shown in FIG.
FIG. 12 is a front view of the B arrow portion in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Drain pan 3 Fan 4 Air filter 5 Air filter drive gear 6 Air filter unit 7 Brush (detachment means)
9 Suction port 10 Slit 11 Front panel 12 Vacuum cleaner (suction means)
13 First louver 14 Second louver 25 Opening

Claims (9)

In an indoor unit of an air conditioner that sucks indoor air from a suction port and circulates the air again after passing through a blowout port, a sheet-like air filter and air that reciprocates the air filter through the suction port A filter driving device, two upper and lower detaching means disposed along the air filter so as to contact the air filter and separating dust adhering to the air filter from the air filter; A dust collecting chamber disposed along the detaching means between the upper and lower two detaching means to temporarily store the dust, and connected to the dust collecting chamber in communication with the air filter. A suction part for facing the suction port of the suction means for sucking the detached dust,
The dust collection chamber is formed in a tapered shape so as to be horizontally long in a direction perpendicular to the traveling direction of the air filter and narrow at one end side, and the suction portion is provided at the narrow end of the dust collection chamber. An indoor unit for an air conditioner characterized by being connected in a continuous manner .   The indoor unit of an air conditioner according to claim 1, wherein the air filter driving device repeats reciprocating driving of the air filter to remove dust from the air filter by the detaching means. In an indoor unit of an air conditioner that sucks indoor air from a suction port and circulates the air again after passing through a blowout port, a sheet-like air filter and air that reciprocates the air filter through the suction port A filter driving device, two upper and lower detaching means disposed along the air filter so as to come into contact with the air filter and separating dust adhering to the air filter from the air filter; A dust collecting chamber disposed along the detaching means between the two upper and lower detaching means to temporarily store the dust, and connected to the dust collecting chamber in communication with the air filter. A suction portion for exposing the suction port of the suction means for sucking the detached dust, A room for an air conditioner characterized in that a dust removing passage partially blown through the air filter and a normal air blowing passage through which all of the circulating air is blown into the room from the air outlet are formed. Machine.   During the air conditioning operation, the dust removal passage is closed and the dust collection passage when the air conditioning operation is stopped is opened by a first passage switching means, and during the air conditioning operation, the normal air blowing passage is opened and the air conditioning passage is opened. The indoor unit of an air conditioner according to claim 3, further comprising a second passage switching means for closing a part or all of the normal air passage during a dust collection operation when the operation is stopped.   The indoor unit of an air conditioner according to claim 4, wherein the first passage switching means is a first louver provided at the air outlet.   The indoor unit of an air conditioner according to claim 4, wherein the second passage switching means is a second louver provided at a branch portion of the normal air passage and the dust removal passage.   The indoor unit of an air conditioner according to claim 6, further comprising intermittent louver operation means for intermittently driving the second louver. The indoor unit of an air conditioner according to any one of claims 1 to 7, wherein the air filter is a long sheet-like air filter.   The indoor unit has a suction port on the ceiling surface, and the air filter is a long sheet-like air filter. When the air conditioner operation state is shifted to the air conditioner operation stop state, the air filter drive device is installed. It further comprises control means that reverses the fixed amount, stops the operation with the used air filter positioned at the inlet on the ceiling surface, and returns the used air filter to the position before the operation is stopped when the operation is resumed. The indoor unit of the air conditioner in any one of Claims 1-7.

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