JP2014219108A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of suppressing proliferation of microorganisms in the air conditioner and suppressing generation of odor deriving from the microorganisms.SOLUTION: An air conditioner according to the present invention comprises: an air flow path in which air attracted from within a room flows; a heat exchanger arranged in the air flow path and implementing heat exchange between the air and a refrigerant; a blower fan arranged in the air flow path; a filter 22 through which the air flowing in the air flow path passes; a dust removal mechanism 30 removing dust adhering to the filter 22 and storing therein the dust; electric discharge means (electric discharge device 40) including a discharge electrode and a counter electrode; and control means performing a first discharge product supply operation for supplying a discharge product generated by electric discharge to the filter 22 from which the dust is not removed by the dust removal mechanism 30 and a second discharge product supply operation for supplying the discharge product generated by the electric discharge to the air flow path.

Description

  The present invention relates to an air conditioner.

  Filters, heat exchangers, air passages, etc. inside air conditioners mounted on vehicles such as railway cars, microorganisms such as bacteria, mold, viruses etc. floating in the passenger compartment, and organic nutrients for these A large amount of suspended matter may adhere. Further, the inside of the air conditioner is in a humid environment where microorganisms are likely to propagate due to accumulation of condensed water generated from the heat exchanger during cooling operation. The inside of the air conditioning apparatus in which the microorganisms have grown is filled with microbial metabolites that cause off-flavors, and when the air-conditioning apparatus is operated, the microbial metabolites are transported into the passenger compartment and become odorous.

  In response to the above problem, Patent Document 1 discloses bacteria, molds, viruses, allergic substances, etc. that float or adhere to the vehicle interior by providing an electrostatic atomizer in the vehicle and supplying charged fine particles into the vehicle interior. There has been proposed a method for inactivating. However, when charged fine particles are released into the passenger compartment to inactivate bacteria, molds, viruses, and allergic substances, the collision efficiency between the inactivated object and the charged fine particles is low, and the efficiency is not good.

  Patent Document 2 proposes a method for removing dust trapped in the filter by ejecting compressed air while rotating the filter provided inside the air conditioner. However, in a vehicle that travels in a closed space such as a subway, even if the captured dust is released to the outside of the vehicle, there is a possibility of entering the vehicle interior again by opening and closing the door.

  In Patent Document 3, a dust collecting filter, a cleaning unit that removes dust attached to the dust collecting filter, a storage unit that stores dust removed by the cleaning unit, and dust stored in the storage unit are discharged by discharge. Disclosed is an air conditioner that includes a discharge unit that supplies the generated active species and suppresses the growth of microorganisms in dust stored in the storage unit.

Japanese Patent No. 5118553 JP-A-6-182130 JP 2007-170782 A

  In the invention of Patent Document 3, the propagation of microorganisms in the dust removed from the filter and stored in the storage means is suppressed. However, in air conditioners used in railway vehicles and the like on which many people ride, a large amount of microorganisms and organic floating substances that serve as nutrients flow in, so there are microorganisms and organic floating substances that cannot be captured by the filter. There are cases where microorganisms grow on the inside of the air conditioner by adhering to an internal device such as a heat exchanger, a blower fan or a drain pan. For this reason, even if the invention of Patent Document 3 is applied, it is not possible to sufficiently suppress the growth of microorganisms and the generation of odors originating from microorganisms inside the air conditioner.

  The present invention has been made to solve the above-described problems, and is an air conditioner that can suppress the growth of microorganisms inside the air conditioning conditioner and can suppress the generation of a strange odor derived from microorganisms. The purpose is to provide.

  An air conditioner according to the present invention is disposed in an air flow path through which air sucked from a room flows, a heat exchanger that is disposed in the air flow path and performs heat exchange between air and a refrigerant, and an air flow path. A blower fan, a filter through which air flowing into the air flow path passes, a dust removing mechanism that removes and accumulates dust attached to the filter, a discharge means having a discharge electrode and a counter electrode, and discharge generation generated by discharge A first discharge product supply operation for supplying the product to the filter before the dust is removed by the dust removal mechanism, and a second discharge product supply operation for supplying the discharge product generated by the discharge to the air flow path. Control means to perform.

  ADVANTAGE OF THE INVENTION According to this invention, the proliferation of the microorganisms inside an air conditioning harmony device can be suppressed, and it becomes possible to suppress generation | occurrence | production of the malodor derived from microorganisms.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side perspective view schematically showing a vehicle on which an air conditioner according to Embodiment 1 of the present invention is mounted. It is a top perspective view which shows the outline of the vehicle shown in FIG. It is the sectional view on the AA line in FIG. It is sectional drawing of the filter apparatus with which the air conditioning apparatus of Embodiment 1 of this invention is provided. It is a graph which shows the survival rate of colon_bacillus | E._coli in each condition of the condition exposed only to ventilation, the condition exposed only to the discharge product, and the condition exposed to both ventilation and the discharge product.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the element which is common in each figure, and the overlapping description is abbreviate | omitted.

Embodiment 1 FIG.
1 is a side perspective view showing an outline of a vehicle on which the air-conditioning apparatus according to Embodiment 1 of the present invention is mounted. FIG. 2 is a top perspective view schematically showing the vehicle shown in FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. In the following description, the vehicle length direction corresponds to the left-right direction in FIG. 2, and the vehicle width direction corresponds to the up-down direction in FIG.

  A vehicle 1 shown in FIG. 1 is a passenger transport vehicle such as a railway vehicle. The air conditioner 5 of the first embodiment is an air conditioner for a vehicle (for a railway vehicle) that performs air conditioning in the passenger compartment 4 of the vehicle 1. The air conditioner 5 includes a main body 10 disposed outside the vehicle above the vehicle 1, a filter device 20 for removing dust from the air sucked into the main body 10 from the interior of the vehicle compartment 4, and the control device 11. (Control means). A decorative panel 3 is arranged on the vehicle 1 with a space from the ceiling 2 of the vehicle 1 downward. The filter device 20 and the control device 11 are arranged in a space between the ceiling 2 and the decorative panel 3 so that they cannot be seen by passengers.

  As shown in FIG. 2, the ceiling 2 of the vehicle 1 has a ceiling air inlet 2 a that communicates with the air inlet of the main body 10 of the air conditioner 5 and a ceiling air outlet that communicates with the air outlet of the main body 10 of the air conditioner 5. 2b. The ceiling inlet 2a is formed at both ends in the vehicle width direction so as to extend in the vehicle length direction. Moreover, the ceiling exhaust port 2b is formed in two places in the center part of the vehicle length direction and the vehicle width direction at intervals in the vehicle width direction. The ceiling air inlet 2a and the ceiling air outlet 2b are formed in a position hidden behind the decorative panel 3 and invisible to the passengers.

  The decorative panel 3 is formed with an in-vehicle intake port 3a communicating with the ceiling intake port 2a, an in-vehicle exhaust port 3b communicating with the ceiling exhaust port 2b, and an in-vehicle auxiliary exhaust port 3c communicating with the ceiling exhaust port 2b. . The vehicle intake ports 3a are disposed at two locations along the vehicle length direction at each of both ends in the vehicle width direction, and are formed at a total of four locations. The vehicle exhaust ports 3b are formed at six locations along the vehicle length direction at the center in the vehicle width direction. The in-vehicle auxiliary exhaust port 3c is formed at two locations on both sides of the in-vehicle exhaust port 3b in the vehicle width direction so as to extend in the vehicle length direction.

  As indicated by the arrows in FIG. 3, the air conditioner 5 sucks the air in the passenger compartment 4 from the air intake of the main body 10 of the air conditioner 5 through the vehicle intake 3 a and the ceiling intake 2 a. This air passes through an air flow path provided in the main body 10, is discharged from the exhaust port of the main body 10, and enters the vehicle interior 4 through the ceiling exhaust port 2b, the in-vehicle exhaust port 3b, and the in-vehicle auxiliary exhaust port 3c. Return. The air conditioner 5 thus air-conditions the vehicle 1 while circulating the air in the passenger compartment 4.

  In the main body 10 of the air conditioner 5, an air flow path that communicates with the intake port and the exhaust port of the main body 10 and through which the air sucked from the passenger compartment 4 flows, and a blower fan disposed in the air flow path. And an indoor heat exchanger that is disposed in the air flow path and performs heat exchange between the air and the refrigerant, and a drain pan that receives the condensed water generated by the indoor heat exchanger. Furthermore, the air conditioner 5 includes a compressor that compresses the refrigerant, an outdoor heat exchanger that performs heat exchange between the air outside the vehicle 1 and the refrigerant, an expansion means such as an expansion valve that expands the refrigerant, and a refrigerant that connects them. It has piping. Since the configuration of these devices included in the air conditioner 5 is known, illustration and detailed description thereof are omitted. The air conditioner 5 performs cooling, heating, and the like in the passenger compartment 4 by operating a refrigeration cycle apparatus constituted by these devices.

  The control device 11 is configured by a microcomputer, for example, and controls the entire air conditioner 5 including drive control of the filter device 20. The control device 11 has a time measuring unit that measures the operation time of the air conditioner 5 and holds the operation integration time, and a counter that detects and counts the number of rotations of the filter 22 included in the filter device 20. .

  Further, a filter device 20 provided with a filter 22 that filters and collects dust from the intake air directed to the intake port of the main body 10 of the air conditioner 5 in the air flow path from the in-vehicle intake port 3a to the ceiling intake port 2a. Is arranged. Clean air that has passed through the filter 22 flows into the air flow path in the main body 10 of the air conditioner 5. As shown in FIG. 1, on the lower surface side of the ceiling 2, there are two openings 12a in the vehicle length direction corresponding to the in-vehicle intake port 3a through which the air toward the intake port of the main body 10 of the air conditioner 5 passes. Two formed mounting frames 12 are fixed to both ends in the vehicle width direction. A filter device 20 is detachably attached to each of the attachment frames 12 corresponding to the openings 12a.

  FIG. 4 is a cross-sectional view of filter device 20 included in air-conditioning apparatus 5 according to Embodiment 1 of the present invention, and corresponds to a cross-sectional view taken along line BB in FIG. As shown in FIG. 4, the filter device 20 includes a housing 21 having an air inlet 20a and an air outlet 20b, a filter 22 built in the housing 21, a drive shaft 24, a driven shaft 25, a dust removing mechanism 30, and a discharge device. 40 and so on. The filter 22 is made of, for example, a mesh ground made of polyvinylidene chloride synthetic fiber or the like. In the first embodiment, the filter 22 is formed in an endless belt shape, and is spanned between the drive shaft 24 and the driven shaft 25 that are arranged in parallel. When the drive shaft 24 is driven by a motor (not shown) and rotates, the filter 22 rotates in the direction of the solid arrow in FIG. A motor that rotates the drive shaft 24 is electrically connected to the control device 11 of the air conditioner 5, and is driven and controlled by the control device 11. In the vicinity of the driven shaft 25, a rotation detector 13 for detecting whether or not the driven shaft 25 has performed a predetermined rotation is attached. The rotation detector 13 outputs a signal while the driven shaft 25 rotates at a predetermined speed, and stops outputting the signal when the rotational speed of the driven shaft 25 reaches a predetermined rotational speed. The control device 11 stops the motor that rotates the drive shaft 24 in response to the signal from the rotation detector 13 not being obtained.

  Air sucked from the passenger compartment 4 passes through the filter 22 in the direction indicated by the dotted arrow in FIG. The filter 22 rotates in the direction of the solid line arrow in FIG. 4, which is orthogonal to the air passing direction. One surface of the filter 22 on the upstream side of the air flow, that is, the surface facing the air inlet 20a is a filtration region surface 22a that filters and collects dust from the air flowing in from the air inlet 20a. The filtration region surface 22a is configured to have an area that approximately matches the opening area of the air inlet 20a. The other surface of the filter 22 on the downstream side of the air flow, that is, the surface facing the air outlet 20b is hereinafter referred to as a “conveying surface 22b”.

  The dust removal mechanism 30 has a function of removing dust adhering to the filter 22 and storing the removed dust. The dust removal mechanism 30 includes a suction nozzle 31 that sucks and removes dust collected by the filter 22, a dust collection portion 32 that accumulates dust sucked from the suction nozzle 31, and an electric motor that applies suction force to the suction nozzle 31. And a blower 33. The suction nozzle 31 is disposed in the vicinity of the drive shaft 24. The suction nozzle 31 is installed over the entire width of the filter 22. The electric blower 33 is electrically connected to the control device 11 of the air conditioner 5 and is driven and controlled by the control device 11. A dust collection mechanism (not shown) is provided inside the dust collection section 32, and this dust collection mechanism is preferably composed of a detachable device such as a paper pack.

  The discharge device 40 is disposed at a position facing the transport surface 22 b of the filter 22. The discharge device 40 includes a discharge electrode, a counter electrode, and a power source that applies a high voltage between both electrodes. The power supply of the discharge device 40 is electrically connected to the control device 11, and the output of this power supply is controlled by the control device 11. When the dust removal mechanism 30 is operated and the filter 22 is driven in the direction of the solid line arrow in FIG. 4, a discharge product such as ozone generated by the discharge of the discharge device 40 is applied to the filter 22. After the discharge product is applied to the filter 22 when passing through the vicinity of the discharge device 40 in this manner, the filter 22 is transported to the position of the suction nozzle 31 of the dust removal mechanism 30 and the attached dust is removed.

  In the low ozone mode operation (first discharge product supply operation) described later, the control device 11 controls the power output so that a voltage of, for example, about 4 kV to 7 kV is applied to the discharge electrode of the discharge device 40. Further, the control device 11 outputs a power supply so that a voltage of, for example, about −4 kV to −7 kV is applied to the discharge electrode of the discharge device 40 in the high ozone mode operation (second discharge product supply operation) described later. To control.

  The discharge electrode of the discharge device 40 is preferably made of a metal such as tungsten, copper, nickel, stainless steel, zinc, iron, or molybdenum, and may be made of an alloy containing these metals as a main component. Further, a noble metal plating such as silver, gold or platinum, a carbon (graphite) layer, an oxide film or the like may be formed on the surface of the discharge electrode. Moreover, the discharge electrode may be comprised by the metal thin wire which the cross section exhibits a rectangular shape or circular shape, and may be comprised by the metal plate which has a processus | protrusion.

  Next, operation | movement of the air conditioning apparatus 5 of this Embodiment 1 is demonstrated. When the air conditioner 5 is operated by the control device 11, the air in the passenger compartment 4 passes through the vehicle intake port 3 a, the filter device 20, and the ceiling intake port 2 a by the blower fan. It is taken into the air flow path. At this time, dust contained in the air in the passenger compartment 4 is removed by the filter 22 of the filter device 20, and clean air flows into the air conditioner 5. And the air which passed the air flow path in the main body 10 of the air conditioning apparatus 5 is discharged from the exhaust port of the main body 10 and then blown into the vehicle compartment 4 through the ceiling exhaust port 2b and the in-vehicle exhaust port 3b. Is done.

  In the filter device 20, the air that has flowed into the housing 21 from the air inlet 20 a first passes through the filtration region surface 22 a of the filter 22. As a result, dust in the air is filtered by the filtration region surface 22a and becomes clean air. The dust collected in this way gradually accumulates on the filtration region surface 22a.

  The control device 11 measures the operating time of the air conditioner 5 at the time measuring unit, and when the operating integrated time obtained by integrating the operating time measured by the time measuring unit reaches a preset specified integrated time. Control to perform the low ozone mode operation.

  When performing the low ozone mode operation, the control device 11 issues a drive signal to the motor of the drive shaft 24, the dust removal mechanism 30, and the discharge device 40, respectively. In the low ozone mode operation, the drive shaft 24 is rotated a predetermined number of times by the motor. Thereby, the filter 22 is transported by a predetermined amount, and the filter 22 on the filtration region surface 22a on which dust in the air is accumulated is transported to the transport surface 22b side. The filter 22 on which the dust is accumulated passes through the suction nozzle 31 of the dust removal mechanism 30 after passing through the discharge device 40. For this reason, bacteria, mold, viruses, allergy-causing substances, etc. in the dust accumulated on the filter 22 are inactivated by the discharge products supplied from the discharge device 40, and then these dusts are sucked by the suction nozzle 31. Then, it can be removed from the surface of the filter 22 and collected in the dust collecting section 32. After the dust is removed by the dust removing mechanism 30 and the surface is cleaned, the filter 22 is transported to the filtration region surface 22a again and reused. In this way, by performing the low ozone mode operation, bacteria, molds, viruses, allergic substances, etc. in the dust removed from the filter 22 and collected in the dust collecting unit 32 of the dust removing mechanism 30 are inactivated. Can do. For this reason, since it can suppress reliably that a microorganisms propagates inside the dust removal mechanism 30, generation | occurrence | production of the odor derived from microorganisms can be suppressed reliably.

  The dust sucked from the suction nozzle 31 is accumulated in a dust collecting mechanism such as a paper pack in the dust collecting section 32. When the accumulated dust is discarded, the dust collecting mechanism may be taken out and replaced.

  In the low ozone mode operation, a voltage of, for example, about 4 kV to 7 kV is applied to the discharge electrode of the discharge device 40, and positive corona discharge occurs. The amount of ozone is suppressed in the discharge product generated by the positive corona discharge. In this low ozone mode operation, the discharge product ionized by the discharge of the discharge device 40 inactivates bacteria, molds, viruses, and allergic substances deposited on the filter 22 in the vicinity of the discharge device 40.

  As described above, in the first embodiment, the filter 22 is rotated and the dust accumulated on the filtration region surface 22a is automatically removed by the dust removal mechanism 30 at each specified integration time. Thereby, the filter 22 can be reused in a clean state. The counter of the control device 11 counts the number of operations as 1 each time the filter 22 is rotated once. When this count number reaches the set number of times (the number of rotation operation limit times corresponding to the life of one filter 22), the control device 11 displays a message prompting replacement of the filter 22 and stops automatic operation. .

  FIG. 5 is a graph showing the survival rate of Escherichia coli under each condition of the condition exposed only to the air blowing, the condition exposed only to the discharge product, and the condition exposed to both the air blowing and the discharge product. As shown in FIG. 5, E. coli can be inactivated more efficiently when exposed to both the discharge product and the blower than when exposed to only the discharge product. In the first embodiment, the dust removal mechanism 30 is operated in the low ozone mode operation, and the dust removal mechanism 30 sucks and removes the dust accumulated on the filter 22 immediately after the discharge product by the discharge device 40 is applied to the filter 22. Bacteria, molds, viruses, and allergens in the dust accumulated on the surface are exposed to both discharge products and vacuum suction by the dust removal mechanism 30. For this reason, the inactivation effect similar to the conditions exposed to both the blast and the discharge product of FIG. 5 is obtained, and bacteria, mold, viruses, and allergens in the dust accumulated on the filter 22 can be inactivated efficiently. .

  However, in the present invention, the operation of applying the discharge product to the dust accumulated on the filter 22 (first discharge product supply operation) and the operation of removing the dust accumulated on the filter 22 may be performed separately. good.

  Moreover, the control apparatus 11 is controlled so that high ozone mode operation | movement is implemented, when the operation integration time of the air conditioning apparatus 5 reaches the 2nd predetermined | prescribed integration integration time set beforehand.

  Moreover, the control apparatus 11 issues a drive signal with respect to the discharge device 40 and a ventilation fan, respectively, when implementing high ozone mode operation | movement. In the high ozone mode operation, a voltage of, for example, about −4 kV to −7 kV is applied to the discharge electrode of the discharge device 40, and negative corona discharge occurs. In the high ozone mode operation, by performing this negative corona discharge, the amount of discharge products containing ozone is increased compared to the low ozone mode operation. This discharge product is supplied to the air flow path in the main body 10 of the air conditioner 5 by the operation of the blower fan, and the indoor heat exchanger, blower fan, drain pan, etc. in the air flow path are exposed to the discharge product. The In this way, by performing the high ozone mode operation, bacteria, mold, viruses, allergies attached to the inner wall of the air flow path, the indoor heat exchanger, the blower fan, the drain pan, etc. in the main body 10 of the air conditioner 5 Causative substances and the like can be inactivated by discharge products. For this reason, since it can suppress reliably that a microorganisms propagates inside the main body 10 of the air conditioning apparatus 5, it can suppress reliably that the malodor derived from microorganisms generate | occur | produces.

  Since a large number of people get on the passenger transport vehicle 1 such as a railway vehicle, a large amount of microorganisms and organic floating substances serving as nutrients exist in the passenger compartment 4. Therefore, in the main body 10 of the air conditioner 5 used in the vehicle 1, along with the air in the passenger compartment 4, a large amount of these microorganisms and organic floating substances serving as nutrients thereof flow. For this reason, bacteria, mold, viruses, causes of allergies in the air that could not be removed by the filter 22 are formed on the inner wall of the air flow path in the main body 10 of the air conditioner 5, the indoor heat exchanger, the blower fan, the drain pan, and the like. Substances adhere. On the other hand, according to the air conditioner 5 of the first embodiment, by performing the above-described high ozone mode operation, the inner wall of the air flow path in the main body 10 of the air conditioner 5, the indoor heat exchanger, Bacteria, mold, viruses, allergy-causing substances, etc. adhering to the blower fan, drain pan, etc. can be inactivated by the discharge product. For this reason, since it can suppress reliably that a microorganisms propagates inside the main body 10 of the air conditioning apparatus 5, it can suppress reliably that the malodor derived from microorganisms generate | occur | produces.

  Further, according to the first embodiment, in the high ozone mode operation in which negative corona discharge is performed, the amount of discharge products can be increased as compared with the low ozone mode operation in which positive corona discharge is performed. The discharge product can be reliably supplied also to the air flow path in the main body 10 of the air conditioner 5. For this reason, bacteria, mold, viruses, allergic substances, etc. adhering to the inner wall of the air flow path, the indoor heat exchanger, the blower fan, the drain pan, etc. in the main body 10 of the air conditioner 5 are reliably inactivated by the discharge products. It is possible to suppress the generation of off-flavors due to the growth of microorganisms.

  Moreover, in this Embodiment 1, a discharge product can be reliably supplied to the air flow path in the main body 10 of the air conditioning apparatus 5 by operating a ventilation fan in high ozone mode operation | movement. For this reason, bacteria, mold, viruses, allergic substances, etc. adhering to the inner wall of the air flow path, the indoor heat exchanger, the blower fan, the drain pan, etc. in the main body 10 of the air conditioner 5 are reliably inactivated by the discharge products. It is possible to suppress the generation of off-flavors due to the growth of microorganisms. On the other hand, in the low ozone mode operation, by stopping the blower fan, the discharge product generated by the discharge device 40 is suppressed from being sucked into the air flow path in the main body 10 of the air conditioner 5, and the discharge device 40. The discharge product generated by the above can be reliably applied to the filter 22. For this reason, bacteria, molds, viruses, allergy-causing substances, etc. in the dust deposited on the filter 22 can be reliably inactivated by the discharge products.

  As described above, according to the first embodiment, in the low ozone mode operation, the dust attached to the filter 22 is treated with the discharge product from the discharge device 40, and bacteria, mold, virus, Since allergen-causing substances and the like are inactivated and then collected by the dust removal mechanism 30, it is possible to reliably suppress the generation of off-flavors due to the growth of microorganisms inside the dust removal mechanism 30. Further, by periodically performing a high ozone mode operation for supplying discharge products to an air flow path, a heat exchanger, a blower fan, a drain pan, etc. in the main body 10 of the air conditioner 5, Hygiene can be maintained more reliably, and the generation of off-flavors due to the growth of microorganisms inside the air conditioner 5 can be reliably suppressed.

  Further, in the first embodiment, in the low ozone mode operation, the filter 22 is rotated and conveyed by a predetermined amount, and the portion of the filter 22 on the filtration region surface 22a where dust is accumulated is connected to the discharge device 40 and the dust removal mechanism 30. The dust is removed by passing the filter, and the portion of the filter 22 from which the dust has been removed is reused as a new filtration region surface 22a. This eliminates the need for cleaning the filter 22 for a long period of time, and reduces the work required to replace the filter 22. Further, since the air in the vehicle compartment 4 can be always removed by the clean filter 22, it is possible to always supply clean air into the vehicle compartment 4.

  Moreover, if it continues using it with the state where dust has accumulated on the filter 22, a pressure loss will increase and an air volume will fall, and the performance of the air conditioning apparatus 5 will fall. On the other hand, in the first embodiment, the filter 22 is rotated at each predetermined integration time set in advance, and the filter 22 in the portion where the dust is removed is used as a new filtration region surface 22a. Can be avoided, and the performance degradation of the air conditioner 5 can be prevented.

  In addition, the specified integration time can be set according to the air environment in the passenger compartment 4, and is set according to the load and operating conditions of the air conditioner 5, so that it can be set at an appropriate timing for the mounted vehicle 1. The filter 22 can be cleaned.

  Further, in the first embodiment, in the low ozone mode operation, the discharge product generated by the discharge device 40 can be sucked into the dust removal mechanism 30 by operating the dust removal mechanism 30 while operating the discharge device 40. It is possible to inactivate bacteria, molds, viruses, allergy-causing substances, and the like in the dust collection unit 32 more reliably, and to more reliably suppress the generation of off-flavors due to the growth of microorganisms in the dust collection unit 32.

  In the first embodiment, the dust removal mechanism 30 may be operated while operating the discharge device 40 even in the high ozone mode operation. By operating the dust removal mechanism 30 during the high ozone mode operation, discharge products generated by the discharge device 40 can be sucked into the dust removal mechanism 30 even during the high ozone mode operation. It is possible to inactivate viruses, allergy-causing substances, and the like more reliably, and to more reliably suppress the generation of off-flavors due to the growth of microorganisms in the dust collection section 32.

  Moreover, in this Embodiment 1, since the discharge device 40 was arrange | positioned so that the downstream surface (conveyance surface 22b) of the air which passes the filter 22 among the surfaces of the filter 22, the filtration area | region of the filter 22 could be obtained. There are advantages that the surface 22a can be widened and that the discharge device 40 can be protected from dust.

  In the first embodiment, the case where the filter 22 is rotated in the direction of the solid line arrow in FIG. 4 is described. However, the filter 22 may be configured to rotate in the direction opposite to the solid line arrow in FIG. . In this case, the discharge device 40 may be installed on the filtration region surface 22 a side of the filter 22.

  Further, in the first embodiment, since one discharge device 40 is configured to be used for both the low ozone mode operation and the high ozone mode operation, cost reduction, size reduction, and weight reduction can be achieved. However, in the present invention, a discharge device used in the low ozone mode operation and a discharge device used in the high ozone mode operation may be provided separately.

  In the first embodiment, the vehicle air conditioner 5 that performs air conditioning of the vehicle 1 has been described as an example. However, the air conditioner of the present invention is not limited to the vehicle and is applied to various air conditioners. can do.

DESCRIPTION OF SYMBOLS 1 Vehicle, 2 ceiling, 2a ceiling inlet, 2b ceiling outlet, 3 decorative panel, 3a interior inlet, 3b interior exhaust, 3c interior auxiliary exhaust, 4 compartment, 5 air conditioner, 10 body, 11 control Device, 12 Mounting frame, 12a Opening, 13 Rotation detector, 20 Filter device, 20a Air inlet, 20b Air outlet, 21 Housing, 22 Filter, 22a Filtration area surface, 22b Conveying surface, 24 Drive shaft, 25 Drive shaft , 30 Dust removal mechanism, 31 Suction nozzle, 32 Dust collector, 33 Electric blower, 40 Discharge device

Claims (10)

An air flow path through which air sucked from the room flows,
A heat exchanger disposed in the air flow path and performing heat exchange between air and a refrigerant;
A blower fan disposed in the air flow path;
A filter through which air flowing into the air flow path passes;
A dust removal mechanism for removing and accumulating dust attached to the filter;
A discharge means having a discharge electrode and a counter electrode;
A first discharge product supply operation for supplying the discharge product generated by the discharge to the filter before the dust is removed by the dust removing mechanism; and a first discharge product supply operation for supplying the discharge product generated by the discharge to the air flow path. Control means for performing the discharge product supply operation of 2;
An air conditioner comprising:   The air conditioner according to claim 1, wherein the amount of the discharge product in the second discharge product supply operation is increased as compared with the amount of the discharge product in the first discharge product supply operation.   The air conditioner according to claim 1 or 2, wherein positive corona discharge is performed in the first discharge product supply operation, and negative corona discharge is performed in the second discharge product supply operation.   The air conditioning apparatus according to any one of claims 1 to 3, wherein the blower fan is stopped in the first discharge product supply operation, and the blower fan is operated in the second discharge product supply operation.   The air conditioner according to any one of claims 1 to 4, wherein the discharge means is operated while the dust removal mechanism is operated in the first discharge product supply operation.   The air conditioner according to any one of claims 1 to 5, wherein the discharge means is operated while the dust removing mechanism is operated in the second discharge product supply operation.   The air conditioner according to any one of claims 1 to 6, wherein a discharge device that is used for both the first discharge product supply operation and the second discharge product supply operation is provided as the discharge means. The filter is formed in an endless belt shape, spanned between a pair of parallel shafts, and is rotatably installed.
The air conditioner according to any one of claims 1 to 7, wherein the discharge means is disposed so as to face a surface of the filter on a downstream side of air passing through the filter. Comprising a drain pan for receiving dew condensation water generated by the heat exchanger;
The air conditioner according to any one of claims 1 to 8, wherein, in the second discharge product supply operation, the discharge product is supplied to the heat exchanger, the blower fan, and the drain pan.   The air conditioning apparatus according to any one of claims 1 to 9, which is mounted on a vehicle.

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