EP1780473B1 - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- EP1780473B1 EP1780473B1 EP05765080A EP05765080A EP1780473B1 EP 1780473 B1 EP1780473 B1 EP 1780473B1 EP 05765080 A EP05765080 A EP 05765080A EP 05765080 A EP05765080 A EP 05765080A EP 1780473 B1 EP1780473 B1 EP 1780473B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- disposed
- air conditioner
- space
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
Definitions
- the present invention relates to an air conditioner disposed with a heat exchanger connected to a refrigerant pipe.
- JP-A No. 11-304177 a floor-placed air conditioner indoor unit disposed with a fan and a heat exchanger inside is disclosed.
- the heat exchanger is disposed such that it cuts across a flow of air formed by the fan at the rear side of a front panel, and is attached inside in a state where it is slanted downward from the front side toward the deep side. Additionally, a flow of air is formed when the fan begins running, and heat exchange is performed between the air passing through the heat exchanger and refrigerant flowing through the heat exchanger.
- the air conditioner indoor unit can provide air-conditioned air to the inside of the room.
- US 2 266 259 A , US 5 373 894 A , GB 618 620 A , FR 1 364 216 A , DE 16 79 537 A1 and US 4 733 542 A relate to air conditioner units, wherein US 2 266 259 A discloses the preamble of claim 1.
- the heat exchanger can be exposed when the front panel is removed.
- the refrigerant pipe connected to the side surface of the heat exchanger has a small diameter and its structure is complex, dirt easily accumulates and it is difficult to clean the refrigerant pipe.
- the water when water is applied to try to clean the heat exchanger, the water also becomes applied to electrical parts and the like disposed on the side of the heat exchanger, and there is the potential for drawbacks such as insulation failure to occur. For this reason, the heat exchanger cannot be cleaned with water even when the heat exchanger is dirty. Thus, it is difficult to say that the heat exchanger can always be kept clean.
- the space on the upstream side of the heat exchanger and the space where the refrigerant pipe is disposed are partitioned from each other by the partition member.
- the partition member is disposed so as to partition the space on the upstream side of the heat exchanger in the flow of the air formed by the fan unit from the space where wiring, pipes, and electrical parts are installed.
- the partition member is disposed so as to partition, in addition to the space where the refrigerant pipe is disposed, the space on the upstream side of the heat exchanger from the space where electrical parts are installed.
- An air conditioner pertaining to the invention comprises a casing that houses inside the fan unit, the heat exchanger, and the partition member. Additionally, the casing includes an open panel that allows the space on the upstream side of the heat exchanger in the flow of the air formed by the fan unit to be exposed for performing maintenance of the heat exchanger
- the casing that houses inside the fan unit, the heat exchanger, and the partition member includes an open panel for performing maintenance of the heat exchanger.
- the heat exchanger can be easily cleaned by opening the open panel and applying water to the heat exchanger.
- the partition member is disposed in the vicinity of a fin disposed on an end portion of plural fins disposed on the surface of the heat exchanger.
- the partition member is disposed in the vicinity of a fin disposed on an end portion of plural fins that the heat exchanger includes.
- An air conditioner pertaining to an embodiment comprises the air conditioner of the fourth invention, wherein the partition member is disposed in the vicinities of fins disposed on both ends of plural fins disposed on the surface of the heat exchanger.
- the partition member is disposed in the vicinities of fins disposed on both ends of the heat exchanger.
- the space where the refrigerant pipe and electrical wiring connected to the side surface of the heat exchanger are installed and the space on the upstream side of the heat exchanger can be reliably partitioned from each other, and occurrences of drawbacks can be avoided even when the heat exchanger is cleaned with water.
- An air conditioner pertaining to an embodiment comprises the air conditioner of any one of the first to fifth inventions, further comprising a drain pan that is disposed below the heat exchanger and receives drain water generated in the heat exchanger.
- a drain pan is disposed below the heat exchanger.
- the heat exchanger which is particularly easy to become dirty, and the drain pan can be easily cleaned by cleaning them with water.
- the air conditioner pertaining to the invention it becomes possible to keep the refrigerant pipe, whose structure is complex and which is difficult to clean, from becoming dirty.
- the heat exchanger can be easily cleaned by opening the open panel and applying water to the heat exchanger.
- occurrences of drawbacks resulting from the refrigerant pipe and the like becoming wet with water can be avoided even when the heat exchanger is cleaned by applying water to the heat exchanger.
- the space where the refrigerant pipe and electrical wiring connected to the side of the heat exchanger are installed and the space on the upstream side of the heat exchanger can be reliably partitioned from each other, and occurrences of drawbacks can be avoided even when the heat exchanger is cleaned with water.
- the heat exchanger which is particularly easy to become dirty, and the drain pan can be easily cleaned by cleaning them with water.
- An air conditioner pertaining to an embodiment of the present invention is as follows when described using FIG. 1 to FIG. 5 .
- the air conditioner pertaining to the embodiment of the present invention is an air conditioner indoor unit (air conditioner) 50 that is placed on a floor, and is disposed with a rectangular parallelepiped casing 1, a heat exchanger 2 disposed such that it cuts across an air path inside the casing 1, and a fan 3 disposed above the heat exchanger 2.
- air conditioner air conditioner indoor unit
- the air conditioner indoor unit 50 is connected via a refrigerant pipe (reference numeral 40, etc., in FIG. 3 ) to an unillustrated air conditioner outdoor unit disposed outdoors, and a compressor and the like that configure a refrigerant circuit are housed in the air conditioner outdoor unit.
- a refrigerant pipe reference numeral 40, etc., in FIG. 3
- the casing 1 is configured by a pair of side plates 4 and 4, a front plate 5 that is attached between the front ends of the side plates 4 and 4, a rear plate 6 that is attached between the rear ends of the side plates 4 and 4, a top plate 7, and a bottom plate 8. Further, glass wool covered by an aluminum sheet is installed as a heat insulator on the inner surfaces of the side plates 4 and 4, the rear plate 6, and a later-described maintenance panel (open panel) 10.
- the inside of the air conditioner indoor unit 50 can be easily cleaned by a method such as spraying the inside with water and then wiping the water off with a cloth because the heat insulator absorbs virtually no water and has excellent resistance to abrasion.
- the heat exchanger 2 is disposed at the rear side of the later-described maintenance panel 10 such that the heat exchanger 2 cuts across the flow of air formed by the fan 3. Further, the heat exchanger 2 is attached inside the casing 1 in a state where the heat exchanger 2 is slanted downward toward the deep side from the front side of an opening that appears when the maintenance panel 10 is removed.
- a lower frame 13 for supporting the heat exchanger 2 is locked to lock portions 15 and 15 formed on both rear ends of the side plates 4 and 4.
- An upper frame 14 is fixed by screws in a state where it has been locked to an attachment plate 16 formed in the vicinity of both front end edges of the side plates 4 and 4.
- the heat exchanger 2 includes, at both its left and right end portions, partition plates (partition members) 30a and 30b disposed so as to partition a space A on an upstream side of the heat exchanger 2 in the air path formed by the fan 3 (this will be referred to simply as the upstream side of the heat exchanger 2 below) from a later-described refrigerant pipe/electrical wiring installation space B and a refrigerant pipe installation space C (see FIG 4(b) ).
- the partition plates 30a and 30b will be described in detail at a later stage.
- the fan 3 is attached to the upper portion of the air conditioner indoor unit 50 and includes a scroll-type fan casing 17, a fan motor 18, a belt 19, a pulley 21 (drive unit), and an unillustrated fan rotor (sirocco fan).
- the fan casing 17 includes discharge openings 17a, which discharge air in the direction of the top plate 7 (a duct 12), and intake openings 17b, which take in air from both sides in the direction of a rotating shaft 20a of the fan rotor. Additionally, the fan 3 transmits the rotational drive force of the fan motor 18 to the rotating shaft 20a via the pulley 21 and the belt 19, causes the fan rotor housed in the fan casing 17 to rotate, and discharges from the discharge openings 17a the air taken in from the intake openings 17b.
- the pair of side plates 4 form an outer enclosure at the sides of the air conditioner indoor unit 50 and support the fan motor 18 and the rotating shaft 20a of the fan 3 from both sides. Further, the side plates 4 include the lock portions 15 that are formed as a result of the rear end portion edges of the side plates 4 being cut inward.
- An air inlet 9 is formed in the middle portion, with respect to the vertical direction, of the front plate 5, and the maintenance panel 10, whose lower end portion serves as a pivot center, is disposed such that it covers the air inlet 9 and may be freely opened and closed.
- the maintenance panel 10 is opened when performing maintenance and the like such as cleaning the heat exchanger 2.
- the rear plate 6 ordinarily forms an outer enclosure at the side disposed near a wall when the air conditioner indoor unit 50 is installed.
- An air outlet 11 is formed in the top plate 7.
- the air outlet 11 is connected to a duct 12 that guides the air-conditioned air such that the air is blown out from a desired place.
- An unillustrated electromagnetic valve attached to a refrigerant pipe 40 connected to the heat exchanger, various electrical parts, and a lower drain pan are placed on the bottom plate 8 between the bottom plate 8 and a middle plate 31 that forms the space A on the upstream side of the heat exchanger 2.
- a drain pan 22 for collecting drain water falling down from the heat exchanger 2 is disposed below the heat exchanger 2 with a slanted orientation such that the front side of the drain pan 22 is positioned high and such that the rear side of the drain pan 22 is positioned low.
- the air conditioner indoor unit 50 is disposed with a drain guide pipe 23, which guides the drain water from the lower end portion of the heat exchanger 2 to the drain pan 22, and a drain discharge opening 24, through which the drain water is discharged to the outdoors.
- the partition plate 30a is disposed such that it partitions the space A on the upstream side of the heat exchanger 2 inside the casing 1 from the refrigerant pipe/electrical wiring installation space B where a refrigerant pipe 2a on the side surface of the heat exchanger 2 and where the refrigerant pipe 40 and an electrical wiring through pipe 41 that penetrate a later-described refrigerant pipe/electrical wiring through portion 32 are installed. Additionally, the partition plate 30a is disposed upright from the middle plate 31 toward the vicinity of an endmost fin of plural fins F attached to the surface of the heat exchanger 2.
- the partition plate 30b is disposed parallel to the partition plate 30a and upright from the middle plate 31 toward the vicinity of an end portion (end portion opposite from the partition plate 30a) of the fins F attached to the surface of the heat exchanger 2, such that the partition plate 30b partitions the space A on the upstream side of the heat exchanger 2 from the space C where the refrigerant pipe 2a exposed at the side surface of the heat exchanger 2 is disposed (this space will be called the refrigerant pipe installation space C below).
- the partition plates 30a and 30b are fixed with respect to the middle plate 31 using fixing members 33 and are fixed by screws with respect to the heat exchanger 2 using fixing members 34.
- the fixing members 33 and 34 are L-shaped members, and plural screw holes are formed therein. Additionally, the partition members 30a, 30b are fixed with respect to the middle plate 31 and the heat exchanger 2 by screwing screws into these screw holes. Further, the fixing member 33 that fixes the partition member 30a disposed on the right when seen from the maintenance panel 10 is attached in an L-shaped state, and the fixing member 33 that fixes the partition member 30b disposed on the left side is attached in an inverted L-shaped state.
- the middle plate 31 is a member for partitioning the space where the heat exchanger 2 is installed from the space therebelow where electrical parts and the like are installed, and an unillustrated temperature sensor is disposed on the middle plate 31 in the vicinity of the center portion of the space A on the upstream side of the heat exchanger 2.
- the refrigerant pipe/electrical wiring through portion 32 forms the refrigerant pipe/electrical wiring installation space B together with the partition member 30a and the side plate 4, and through holes 32a that allow the refrigerant pipe 40 and the electrical wiring through pipe 41 to be passed therethrough are formed in the refrigerant pipe/electrical wiring through plate 32.
- the refrigerant pipe/electrical wiring through plate 32 is a portion further to the right side of the middle plate 31 than the partition plate 30a when seen from the maintenance panel 10.
- the heat exchanger 2 is exposed to the front when the maintenance panel 10 is removed. Additionally, the space A on the upstream side of the exposed heat exchanger 2 and the spaces B and C on the sides of the heat exchanger 2 are partitioned from each other by the partition members 30a and 30b.
- the air conditioner indoor unit 50 of the present embodiment is disposed with the partition members 30a and 30b that partition the space A on the upstream side of the heat exchanger 2 from the spaces B and C on both sides of the heat exchanger 2 where electrical parts and the like are installed, so that occurrences of drawbacks in electrical parts and the like may be avoided even when the heat exchanger 2 is cleaned using water.
- the air conditioner indoor unit 50 of the present embodiment is disposed with the maintenance panel 10 that allows the heat exchanger 2 to be exposed to the outside as part of the casing 1 configuring the outer enclosure.
- the heat exchanger 2 can be easily cleaned in a state where the maintenance panel 10 has been removed to expose the heat exchanger 2.
- the partition members 30a and 30b are attached in the vicinities of both ends of the fins F plurally attached to the surface of the heat exchanger 2.
- the space A on the upstream side of the heat exchanger 2 and the refrigerant pipe/electrical wiring installation space B and the refrigerant pipe installation space C can be partitioned from each other, and occurrences of drawbacks resulting from water being applied to the refrigerant pipes 2a and 40 can be avoided even when the heat exchanger 2 is cleaned with water.
- the drain pan 22 is disposed below the heat exchanger 2 that is cleaned with water.
- partition plate 30a may be disposed without disposing the partition plate 30b.
- partition plates 30a and 30b are disposed at both the left and right ends of the heat exchanger because, when the partition plates 30a and 30b are disposed at both the left and right ends as in the above-described embodiment, water can be prevented from being applied to the refrigerant pipe installation space C also in addition to the refrigerant pipe/electrical wiring installation space B.
- the partition members 30a and 30b may also be disposed further inward than the end portions of the heat exchanger 2.
- the partition members 30a and 30b may be disposed at both the left and right ends of the heat exchanger 2, that is, in the vicinities of the end portions of the fins F.
- the air conditioner of the present invention provides the effect that a heat exchanger can be cleaned with water without adversely affecting refrigerant pipes and electrical parts, so it is widely applicable with respect to an air conditioner including an open portion that allows the heat exchanger to be exposed.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Description
- The present invention relates to an air conditioner disposed with a heat exchanger connected to a refrigerant pipe.
- Conventionally, an air conditioner disposed with a heat exchanger that handles a sensible heat load and a latent heat load present in a room space in order to keep the room space in a comfortable environment has been proposed.
- For example, in
JP-A No. 11-304177 - In this air conditioner indoor unit, the heat exchanger is disposed such that it cuts across a flow of air formed by the fan at the rear side of a front panel, and is attached inside in a state where it is slanted downward from the front side toward the deep side. Additionally, a flow of air is formed when the fan begins running, and heat exchange is performed between the air passing through the heat exchanger and refrigerant flowing through the heat exchanger. Thus, the air conditioner indoor unit can provide air-conditioned air to the inside of the room.
- In addition,
US 2 266 259 A ,US 5 373 894 A ,GB 618 620 A FR 1 364 216 ADE 16 79 537 A1US 4 733 542 A relate to air conditioner units, whereinUS 2 266 259 A discloses the preamble ofclaim 1. - However, the above-described conventional air conditioner indoor unit has the following problem.
- That is, in the above-described air conditioner indoor unit, the heat exchanger can be exposed when the front panel is removed. However, there is the problem that, because the refrigerant pipe connected to the side surface of the heat exchanger has a small diameter and its structure is complex, dirt easily accumulates and it is difficult to clean the refrigerant pipe. Further, when water is applied to try to clean the heat exchanger, the water also becomes applied to electrical parts and the like disposed on the side of the heat exchanger, and there is the potential for drawbacks such as insulation failure to occur. For this reason, the heat exchanger cannot be cleaned with water even when the heat exchanger is dirty. Thus, it is difficult to say that the heat exchanger can always be kept clean.
- It is an object of the present invention to provide an air conditioner capable of always keeping clean the internal configuration of a heat exchanger and the like.
- An air conditioner pertaining to a first invention is defined in
claim 1. Further, advantageous embodiments are recited in the dependent claims. - The space on the upstream side of the heat exchanger and the space where the refrigerant pipe is disposed are partitioned from each other by the partition member.
- Thus, even when the space on the upstream side of the heat exchanger is opened, it is difficult for the refrigerant pipe connected to the side of the heat exchanger to become dirty because the refrigerant pipe is separated from the space outside. For this reason, the refrigerant pipe connected to the side of the heat exchanger whose structure is complex and where it is easy for dirt to accumulate can be kept from becoming dirty.
- In an air conditioner pertaining to the invention the partition member is disposed so as to partition the space on the upstream side of the heat exchanger in the flow of the air formed by the fan unit from the space where wiring, pipes, and electrical parts are installed.
- Here, the partition member is disposed so as to partition, in addition to the space where the refrigerant pipe is disposed, the space on the upstream side of the heat exchanger from the space where electrical parts are installed. Thus, occurrences of drawbacks such as insulation failure resulting from electrical parts and the like becoming wet can be avoided even when the heat exchanger is cleaned with water.
- An air conditioner pertaining to the invention comprises a casing that houses inside the fan unit, the heat exchanger, and the partition member. Additionally, the casing includes an open panel that allows the space on the upstream side of the heat exchanger in the flow of the air formed by the fan unit to be exposed for performing maintenance of the heat exchanger
- Here, the casing that houses inside the fan unit, the heat exchanger, and the partition member includes an open panel for performing maintenance of the heat exchanger.
- Thus, the heat exchanger can be easily cleaned by opening the open panel and applying water to the heat exchanger.
- In an air conditioner pertaining to an embodiment the partition member is disposed in the vicinity of a fin disposed on an end portion of plural fins disposed on the surface of the heat exchanger.
- Here, the partition member is disposed in the vicinity of a fin disposed on an end portion of plural fins that the heat exchanger includes.
- Thus, occurrences of drawbacks resulting from a refrigerant pipe and the like becoming wet with water can be avoided even when the heat exchanger is cleaned by applying water to the heat exchanger.
- An air conditioner pertaining to an embodiment comprises the air conditioner of the fourth invention, wherein the partition member is disposed in the vicinities of fins disposed on both ends of plural fins disposed on the surface of the heat exchanger.
- Here, the partition member is disposed in the vicinities of fins disposed on both ends of the heat exchanger.
- Thus, the space where the refrigerant pipe and electrical wiring connected to the side surface of the heat exchanger are installed and the space on the upstream side of the heat exchanger can be reliably partitioned from each other, and occurrences of drawbacks can be avoided even when the heat exchanger is cleaned with water.
- An air conditioner pertaining to an embodiment comprises the air conditioner of any one of the first to fifth inventions, further comprising a drain pan that is disposed below the heat exchanger and receives drain water generated in the heat exchanger.
- Here, a drain pan is disposed below the heat exchanger.
- For this reason, the heat exchanger, which is particularly easy to become dirty, and the drain pan can be easily cleaned by cleaning them with water.
- According to the air conditioner pertaining to the invention, it becomes possible to keep the refrigerant pipe, whose structure is complex and which is difficult to clean, from becoming dirty.
- According to the air conditioner pertaining to the invention, occurrences of drawbacks such as insulation failure resulting from electrical parts becoming wet can be avoided even when the heat exchanger is cleaned with water.
- According to the air conditioner pertaining to the invention, the heat exchanger can be easily cleaned by opening the open panel and applying water to the heat exchanger.
- According to the air conditioner pertaining to an embodiment, occurrences of drawbacks resulting from the refrigerant pipe and the like becoming wet with water can be avoided even when the heat exchanger is cleaned by applying water to the heat exchanger.
- According to the air conditioner pertaining to an embodiment, the space where the refrigerant pipe and electrical wiring connected to the side of the heat exchanger are installed and the space on the upstream side of the heat exchanger can be reliably partitioned from each other, and occurrences of drawbacks can be avoided even when the heat exchanger is cleaned with water.
- According to the air conditioner pertaining to an embodiment, the heat exchanger, which is particularly easy to become dirty, and the drain pan can be easily cleaned by cleaning them with water.
-
-
FIG. 1 is a front view showing the internal configuration of an air conditioner indoor unit pertaining to an embodiment of the present invention. -
FIG. 2 is a side view showing the internal configuration of the air conditioner indoor unit ofFIG. 1 . -
FIG. 3 is an exploded view showing the configuration of the air conditioner indoor unit ofFIG. 1 . -
FIG. 4 (a) is a perspective view showing members around a heat exchanger with which the air conditioner indoor unit ofFIG. 1 is disposed. (b) is a front view thereof. -
FIG. 5 is a perspective view showing an attachment structure of a partition plate installed inside the air conditioner indoor unit ofFIG. 1 . -
- 1
- Casing
- 2
- Heat Exchanger
- 2a
- Refrigerant Pipe
- 3
- Fan (Fan Device)
- 4
- Side Plate
- 5
- Front Plate
- 6
- Rear Plate
- 7
- Top Plate
- 8
- Bottom Plate
- 9
- Air Inlet
- 10
- Maintenance Panel
- 11
- Air Outlet
- 12
- Duct
- 13
- Lower Frame
- 14
- Upper Frame
- 15
- Lock Portion
- 16
- Attachment Plate
- 17
- Fan Casing
- 17a
- Discharge Opening
- 17b
- Intake Opening
- 18
- Fan Motor
- 19
- Belt
- 20a
- Rotating Shaft
- 21
- Pulley
- 22
- Drain Pan
- 30a
- Partition Plate
- 30b
- Partition Plate
- 31
- Middle Plate
- 32
- Refrigerant Pipe, Electrical Wiring Through Portion
- 32a
- Through Hole
- 33
- Fixing Member
- 34
- Fixing Member
- 40
- Refrigerant Pipe
- 41
- Electrical Wiring Through Pipe
- 50
- Air Conditioner Indoor Unit (Air Conditioner)
- A
- Space on Upstream Side of Heat Exchanger
- B
- Refrigerant Pipe, Electrical Wiring Installation Space
- C
- Refrigerant Pipe Installation Space
- F
- Fin
- An air conditioner pertaining to an embodiment of the present invention is as follows when described using
FIG. 1 to FIG. 5 . - As shown in
FIG. 1 to FIG. 3 , the air conditioner pertaining to the embodiment of the present invention is an air conditioner indoor unit (air conditioner) 50 that is placed on a floor, and is disposed with arectangular parallelepiped casing 1, aheat exchanger 2 disposed such that it cuts across an air path inside thecasing 1, and afan 3 disposed above theheat exchanger 2. - It will be noted that the air conditioner
indoor unit 50 is connected via a refrigerant pipe (reference numeral 40, etc., inFIG. 3 ) to an unillustrated air conditioner outdoor unit disposed outdoors, and a compressor and the like that configure a refrigerant circuit are housed in the air conditioner outdoor unit. - The
casing 1 is configured by a pair ofside plates front plate 5 that is attached between the front ends of theside plates rear plate 6 that is attached between the rear ends of theside plates top plate 7, and abottom plate 8. Further, glass wool covered by an aluminum sheet is installed as a heat insulator on the inner surfaces of theside plates rear plate 6, and a later-described maintenance panel (open panel) 10. The inside of the air conditionerindoor unit 50 can be easily cleaned by a method such as spraying the inside with water and then wiping the water off with a cloth because the heat insulator absorbs virtually no water and has excellent resistance to abrasion. - As shown in
FIG. 2 , theheat exchanger 2 is disposed at the rear side of the later-describedmaintenance panel 10 such that theheat exchanger 2 cuts across the flow of air formed by thefan 3. Further, theheat exchanger 2 is attached inside thecasing 1 in a state where theheat exchanger 2 is slanted downward toward the deep side from the front side of an opening that appears when themaintenance panel 10 is removed. Alower frame 13 for supporting theheat exchanger 2 is locked to lockportions side plates upper frame 14 is fixed by screws in a state where it has been locked to anattachment plate 16 formed in the vicinity of both front end edges of theside plates heat exchanger 2 includes, at both its left and right end portions, partition plates (partition members) 30a and 30b disposed so as to partition a space A on an upstream side of theheat exchanger 2 in the air path formed by the fan 3 (this will be referred to simply as the upstream side of theheat exchanger 2 below) from a later-described refrigerant pipe/electrical wiring installation space B and a refrigerant pipe installation space C (seeFIG 4(b) ). Thepartition plates - As shown in
FIG. 1 to FIG. 3 , thefan 3 is attached to the upper portion of the air conditionerindoor unit 50 and includes a scroll-type fan casing 17, afan motor 18, abelt 19, a pulley 21 (drive unit), and an unillustrated fan rotor (sirocco fan). - The
fan casing 17 includesdischarge openings 17a, which discharge air in the direction of the top plate 7 (a duct 12), andintake openings 17b, which take in air from both sides in the direction of arotating shaft 20a of the fan rotor. Additionally, thefan 3 transmits the rotational drive force of thefan motor 18 to therotating shaft 20a via thepulley 21 and thebelt 19, causes the fan rotor housed in thefan casing 17 to rotate, and discharges from thedischarge openings 17a the air taken in from theintake openings 17b. - The pair of
side plates 4 form an outer enclosure at the sides of the air conditionerindoor unit 50 and support thefan motor 18 and therotating shaft 20a of thefan 3 from both sides. Further, theside plates 4 include thelock portions 15 that are formed as a result of the rear end portion edges of theside plates 4 being cut inward. - An
air inlet 9 is formed in the middle portion, with respect to the vertical direction, of thefront plate 5, and themaintenance panel 10, whose lower end portion serves as a pivot center, is disposed such that it covers theair inlet 9 and may be freely opened and closed. Themaintenance panel 10 is opened when performing maintenance and the like such as cleaning theheat exchanger 2. - The
rear plate 6 ordinarily forms an outer enclosure at the side disposed near a wall when the air conditionerindoor unit 50 is installed. - An
air outlet 11 is formed in thetop plate 7. Theair outlet 11 is connected to aduct 12 that guides the air-conditioned air such that the air is blown out from a desired place. - An unillustrated electromagnetic valve attached to a
refrigerant pipe 40 connected to the heat exchanger, various electrical parts, and a lower drain pan are placed on thebottom plate 8 between thebottom plate 8 and amiddle plate 31 that forms the space A on the upstream side of theheat exchanger 2. - Further, as shown in
FIG. 2 , adrain pan 22 for collecting drain water falling down from theheat exchanger 2 is disposed below theheat exchanger 2 with a slanted orientation such that the front side of thedrain pan 22 is positioned high and such that the rear side of thedrain pan 22 is positioned low. Additionally, the air conditionerindoor unit 50 is disposed with adrain guide pipe 23, which guides the drain water from the lower end portion of theheat exchanger 2 to thedrain pan 22, and adrain discharge opening 24, through which the drain water is discharged to the outdoors. - As shown in
FIG. 4(a) , thepartition plate 30a is disposed such that it partitions the space A on the upstream side of theheat exchanger 2 inside thecasing 1 from the refrigerant pipe/electrical wiring installation space B where arefrigerant pipe 2a on the side surface of theheat exchanger 2 and where therefrigerant pipe 40 and an electrical wiring throughpipe 41 that penetrate a later-described refrigerant pipe/electrical wiring throughportion 32 are installed. Additionally, thepartition plate 30a is disposed upright from themiddle plate 31 toward the vicinity of an endmost fin of plural fins F attached to the surface of theheat exchanger 2. - As shown in
FIG. 4(b) , thepartition plate 30b is disposed parallel to thepartition plate 30a and upright from themiddle plate 31 toward the vicinity of an end portion (end portion opposite from thepartition plate 30a) of the fins F attached to the surface of theheat exchanger 2, such that thepartition plate 30b partitions the space A on the upstream side of theheat exchanger 2 from the space C where therefrigerant pipe 2a exposed at the side surface of theheat exchanger 2 is disposed (this space will be called the refrigerant pipe installation space C below). - Further, as shown in
FIG. 5 , thepartition plates middle plate 31 using fixingmembers 33 and are fixed by screws with respect to theheat exchanger 2 using fixingmembers 34. The fixingmembers partition members middle plate 31 and theheat exchanger 2 by screwing screws into these screw holes. Further, the fixingmember 33 that fixes thepartition member 30a disposed on the right when seen from themaintenance panel 10 is attached in an L-shaped state, and the fixingmember 33 that fixes thepartition member 30b disposed on the left side is attached in an inverted L-shaped state. - The
middle plate 31 is a member for partitioning the space where theheat exchanger 2 is installed from the space therebelow where electrical parts and the like are installed, and an unillustrated temperature sensor is disposed on themiddle plate 31 in the vicinity of the center portion of the space A on the upstream side of theheat exchanger 2. - As shown in
FIG. 4(a) , the refrigerant pipe/electrical wiring throughportion 32 forms the refrigerant pipe/electrical wiring installation space B together with thepartition member 30a and theside plate 4, and throughholes 32a that allow therefrigerant pipe 40 and the electrical wiring throughpipe 41 to be passed therethrough are formed in the refrigerant pipe/electrical wiring throughplate 32. It will be noted that the refrigerant pipe/electrical wiring throughplate 32 is a portion further to the right side of themiddle plate 31 than thepartition plate 30a when seen from themaintenance panel 10. - In the air conditioner
indoor unit 50 of the present embodiment, theheat exchanger 2 is exposed to the front when themaintenance panel 10 is removed. Additionally, the space A on the upstream side of the exposedheat exchanger 2 and the spaces B and C on the sides of theheat exchanger 2 are partitioned from each other by thepartition members - Ordinarily, it is preferable to clean a heat exchanger of this configuration by applying water to it because the heat exchanger can be cleaned extremely efficiently and the applied water can be discharged to the outside via a drain pan installed below the heat exchanger. However, in this case, when water is applied to the heat exchanger, there has been the potential for electrical parts and the like around the heat exchanger to become wet and for drawbacks to occur. For this reason, conventionally, it has been difficult to clean the heat exchanger by applying water to it.
- Given this, the air conditioner
indoor unit 50 of the present embodiment is disposed with thepartition members heat exchanger 2 from the spaces B and C on both sides of theheat exchanger 2 where electrical parts and the like are installed, so that occurrences of drawbacks in electrical parts and the like may be avoided even when theheat exchanger 2 is cleaned using water. - Thus, it becomes possible to clean the
heat exchanger 2 by applying water to theheat exchanger 2 because the water applied to theheat exchanger 2 can be prevented from being applied to the electrical parts and the like. - Further, in regard to the
refrigerant pipes heat exchanger 2, although it is easy for dirt to accumulate because pipes with small diameters are incorporated therein and their structures are complex, it can be made difficult for dirt to accumulate on therefrigerant pipes partition members - The air conditioner
indoor unit 50 of the present embodiment is disposed with themaintenance panel 10 that allows theheat exchanger 2 to be exposed to the outside as part of thecasing 1 configuring the outer enclosure. - Thus, the
heat exchanger 2 can be easily cleaned in a state where themaintenance panel 10 has been removed to expose theheat exchanger 2. - In the air conditioner
indoor unit 50 of the present embodiment, thepartition members heat exchanger 2. - Thus, the space A on the upstream side of the
heat exchanger 2 and the refrigerant pipe/electrical wiring installation space B and the refrigerant pipe installation space C can be partitioned from each other, and occurrences of drawbacks resulting from water being applied to therefrigerant pipes heat exchanger 2 is cleaned with water. - In the air conditioner
indoor unit 50 of the present embodiment, thedrain pan 22 is disposed below theheat exchanger 2 that is cleaned with water. - Thus, water applied in order to clean the
heat exchanger 2 can be discharged to the outside via thedrain pan 22. Thus, cumbersome work such as wiping off water after theheat exchanger 2 has been cleaned with water becomes unnecessary. - An embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment.
- In the above-described embodiment, an example was described where the
partition plates heat exchanger 2. However, the present invention is not limited to this. - For example, just the
partition plate 30a may be disposed without disposing thepartition plate 30b. - However, it is preferable to dispose the
partition plates partition plates - In the above-described embodiment, an example was described where the
partition members heat exchanger 2. However, in regard to the disposition of thepartition members - For example, the
partition members heat exchanger 2. However, in consideration of cleaning theentire heat exchanger 2 with water, it is preferable for thepartition members heat exchanger 2, that is, in the vicinities of the end portions of the fins F. - The air conditioner of the present invention provides the effect that a heat exchanger can be cleaned with water without adversely affecting refrigerant pipes and electrical parts, so it is widely applicable with respect to an air conditioner including an open portion that allows the heat exchanger to be exposed.
Claims (4)
- An air conditioner (50) comprising:a fan unit (3) that forms a flow of air;a heat exchanger (2) that is disposed in the middle of the flow of air formed by the fan unit (3) and performs heat exchange between refrigerant and the air;a partition member (30a, 30b) that partitions a space (A) on the upstream side of the heat exchanger (2) in the flow of the air formed by the fan unit (3) from a space (B) where a pipe through which the refrigerant flows is disposed and wiring, pipes, and electrical parts are installed,a casing (1) that houses inside the fan unit, the heat exchanger, and the partition member (30a, 30b), characterized in that the casing (1) includes a maintenance panel (10) that allows the space (A) on the upstream side of the heat exchanger (2) in the flow of the air formed by the fan unit (3) to be exposed for performing maintenance of the heat exchanger (2),and that occurrences of drawbacks resulting from water being applied to the wiring, pipes and electrical parts in the space (B) can be avoided even when the maintenance panel (10) is removed and the heat exchanger (2) is cleaned with water, wherein the partition member (30a,30b) can prevent the water applied to the heat exchanger (2) from being applied to the electrical parts and the like.
- The air conditioner (50) as set forth in claim 1, wherein the partition member (30a, 30b) is disposed in the vicinity of a fin (F) disposed on an end portion of plural fins (F) disposed on the surface of the heat exchanger (2).
- The air conditioner (50) as set forth in claim 2, wherein the partition member (30a, 30b) is disposed in the vicinities of fins (F) disposed on both ends of plural fins (F) disposed on the surface of the heat exchanger (2).
- The air conditioner (50) as set forth in any one of claims 1 to 3, further comprising a drain pan (22) that is disposed below the heat exchanger (2) and receives drain water generated in the heat exchanger (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004186669A JP3823988B2 (en) | 2004-06-24 | 2004-06-24 | Air conditioner |
PCT/JP2005/011504 WO2006001323A1 (en) | 2004-06-24 | 2005-06-23 | Air conditioner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1780473A1 EP1780473A1 (en) | 2007-05-02 |
EP1780473A4 EP1780473A4 (en) | 2010-05-19 |
EP1780473B1 true EP1780473B1 (en) | 2012-10-17 |
Family
ID=35777624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05765080A Not-in-force EP1780473B1 (en) | 2004-06-24 | 2005-06-23 | Air conditioner |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070227172A1 (en) |
EP (1) | EP1780473B1 (en) |
JP (1) | JP3823988B2 (en) |
CN (1) | CN100472140C (en) |
ES (1) | ES2397108T3 (en) |
WO (1) | WO2006001323A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012117718A (en) * | 2010-11-30 | 2012-06-21 | Fujitsu General Ltd | Indoor unit of duct type air conditioner |
JP5557110B2 (en) * | 2010-12-13 | 2014-07-23 | 株式会社富士通ゼネラル | Duct type air conditioner indoor unit |
JP5673058B2 (en) * | 2010-12-13 | 2015-02-18 | 株式会社富士通ゼネラル | Duct type air conditioner indoor unit |
JP5673059B2 (en) * | 2010-12-14 | 2015-02-18 | 株式会社富士通ゼネラル | Duct type air conditioner indoor unit |
JP2013181724A (en) * | 2012-03-05 | 2013-09-12 | Hitachi Appliances Inc | Air conditioner |
US11454420B2 (en) | 2019-02-06 | 2022-09-27 | Johnson Controls Tyco IP Holdings LLP | Service plate for a heat exchanger assembly |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2266259A (en) * | 1938-10-01 | 1941-12-16 | Deane E Perham | Air conditioning apparatus |
GB618620A (en) * | 1946-11-04 | 1949-02-24 | F H Biddle Ltd | Improvements connected with cabinets for air cooling or heating and the delivery or circulation of cooled or heated air |
BE633421A (en) * | 1962-06-12 | |||
US3262491A (en) * | 1964-12-01 | 1966-07-26 | American Air Filter Co | Self-contained air-conditioning unit ventilator |
DE1679537A1 (en) * | 1967-09-27 | 1971-04-08 | M Krassnitzer Theobald H | Air conditioner |
JPS6127432A (en) * | 1984-07-19 | 1986-02-06 | Sanyo Electric Co Ltd | Integrated air conditioner |
US4733542A (en) | 1986-12-05 | 1988-03-29 | Enviromaster International Corporation | Cabinet for air conditioning system |
JP3349722B2 (en) * | 1992-08-25 | 2002-11-25 | 東芝キヤリア株式会社 | Indoor unit of air conditioner and packing method thereof |
JP3549357B2 (en) * | 1997-03-10 | 2004-08-04 | 松下電器産業株式会社 | Outdoor unit for separation type air conditioner |
JP3045142B2 (en) | 1998-04-27 | 2000-05-29 | ダイキン工業株式会社 | Air conditioner |
AU7900698A (en) * | 1998-06-22 | 2000-01-10 | Correa, Juan Carlos Carne | Three-way mounting of an air conditioner |
JP3159685B2 (en) * | 1999-05-25 | 2001-04-23 | ダイダン株式会社 | Package type air conditioner that can wash inside |
-
2004
- 2004-06-24 JP JP2004186669A patent/JP3823988B2/en not_active Expired - Fee Related
-
2005
- 2005-06-23 WO PCT/JP2005/011504 patent/WO2006001323A1/en active Application Filing
- 2005-06-23 ES ES05765080T patent/ES2397108T3/en active Active
- 2005-06-23 EP EP05765080A patent/EP1780473B1/en not_active Not-in-force
- 2005-06-23 US US11/629,174 patent/US20070227172A1/en not_active Abandoned
- 2005-06-23 CN CNB2005800199033A patent/CN100472140C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN100472140C (en) | 2009-03-25 |
WO2006001323A1 (en) | 2006-01-05 |
CN1969151A (en) | 2007-05-23 |
EP1780473A1 (en) | 2007-05-02 |
US20070227172A1 (en) | 2007-10-04 |
EP1780473A4 (en) | 2010-05-19 |
JP2006010178A (en) | 2006-01-12 |
ES2397108T3 (en) | 2013-03-04 |
JP3823988B2 (en) | 2006-09-20 |
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