TWI675993B - Air conditioner - Google Patents

Abstract

The air conditioner installed on the upper part of the side wall or ceiling of the room includes a box body and a drain pan unit (50) for receiving drain water dripping from the heat exchanger (38). If the height of the box is set to h [mm] and the width of the box is set to W [mm], the relationship of W ≧ 4 × h is established. The drain pan unit (50) includes a groove portion (54) and a drain pipe portion (55). The surface portion of the recessed portion (54) has a substantially V-shape having the highest height in the up-down direction at both ends in the left-right direction of the box and the lowest height in the up-down direction at a position near the center. The first end portion (55A) of the drainage piping portion (55) is connected to the groove portion (54) near the center in the left-right direction of the box, and the drainage piping portion (55) is close to the left-right direction of the box. The center position extends from the first end portion (55A) toward the back side. It can ensure the tolerance of the setting error and handle the piping efficiently.

Description

Air conditioner

This manual is about an air conditioner installed on the side wall or ceiling of a room. This application claims the priority of Japanese Patent Application No. 2017-140997 based on the Japanese patent application filed on July 20, 2017. All the descriptions described in this Japanese patent application are referred to this specification by reference.

The following Patent Documents 1 to 9 disclose technologies related to air conditioners (so-called air conditioners). Patent Document 9 discloses an air conditioner having a substantially rectangular shape in a plan view. As disclosed in the literature, air conditioners often have a drain pan. Drain dripping from the heat exchanger is received by a drain pan, and is discharged to the outside through a drain pipe.

Patent Document 1: Japanese Patent No. 3141867

Patent Document 2: Japanese Patent Application Laid-Open No. 2015-169389

Patent Document 3: Japanese Patent Application Laid-Open No. 2016-099090

Patent Document 4: Japanese Patent Application Publication No. 2016-183794

Patent Document 5: Japanese Patent No. 4932916

Patent Document 6: Japanese Patent Application Publication No. 2012-063133

Patent Document 7: Japanese Patent No. 4604536

Patent Document 8: Japanese Patent Application Laid-Open No. 2005-315538

Patent Document 9: Japanese Patent Application Publication No. 2013-104592

In an air conditioner having a substantially rectangular shape in a plan view, the width of the casing relative to the height of the casing (chassis) tends to be large, and drainage of drainage is difficult. That is, a drainage pipe is generally provided at the left end or the right end of the air conditioner. The height position in the up-down direction of the drain pan is set to be higher on either the left end side or the right end side of the air conditioner, and set to be lower on the other side. The drain pan is configured such that a portion between the left end side and the right end side is linearly inclined, and the drain pipe is connected to a lower portion of the drain pan.

For example, in an air conditioner having a long shape with a box height of less than 25 cm and a box width of 1 m or more, the vertical difference between the left and right ends becomes smaller, and the distance between the left and right ends is smaller. The distance between them also becomes longer. Along with this, the inclination of the drain pan becomes slower (close to horizontal). For example, when installing an air conditioner, the air conditioner (drain pan) may be installed in a state where the air conditioner (drain pan) is slightly inclined, and there is a possibility that the drainage received by the drain pan may not be quickly discharged to the outside without stopping. That is, in the air conditioner provided with the above-mentioned structure, the tolerance range of a setting error becomes easy to become small.

In addition, when a drainage pipe is provided at the left end or the right end of the air conditioner, it is easy to waste the processing of the drainage pipe or the refrigerant pipe. For example, consider an air conditioner in which piping is removed from the right side of the box. When the air conditioner of this type is installed so that the left side of the cabinet is adjacent to the wall surface of the room, for example, on the rear side of the air conditioner, the pipe must be spread from the right side of the cabinet to the left. When the width of the air conditioner is more than 1m, the required length of the piping also increases with the width, which not only increases the cost of products or installation, but also wastes valuable earth resources such as copper or aluminum.

The purpose of this specification is to disclose an air conditioner that can sufficiently ensure the allowable range of installation errors and has a structure that can efficiently handle piping.

The air conditioner disclosed in this specification is installed on an upper side wall or ceiling of a room, and includes a cabinet having an upper surface facing the ceiling, a lower surface located on the floor surface side, a rear surface disposed on the side wall surface, and a rear surface disposed on the rear surface. Opposite side front, from the back to the front It is located on the right side of the right side, and from the back side to the front side and on the left side of the left side; the blower is arranged inside the box; the heat exchanger is arranged in front of or above the blower, and is connected to the outdoor heat exchanger; And a drain pan unit, which is disposed below the heat exchanger and receives drainage dripping from the heat exchanger; if the height of the box is set to h [mm], the width of the box is set to W [mm] Then, the relationship of W ≧ 4 × h is established. The drainage pan unit includes: a groove portion having a shape extending along the long side direction of the heat exchanger to receive drainage from the heat exchanger; and a drainage piping portion. , Which has a first end portion and a second end portion, the first end portion is connected to the groove portion, and the second end portion communicates with the outdoor, so that the drainage received by the groove portion passes through the first end portion and The second end portion is discharged, and the surface portion of the groove portion that is arranged to oppose the heat exchanger to receive the drainage from the heat exchanger appears at the two ends of the box in the left-right direction. The height in the up-down direction is the highest and is to the left of the box The position near the center in the direction is a generally V-shaped shape in which the height in the up-down direction is the lowest, and the first end portion of the drainage pipe portion is located at the position near the center in the left-right direction of the box and the groove Connected, the drainage pipe portion extends from the first end portion toward the back side at the near-central position in the left-right direction of the box.

In the air conditioner, the heat exchanger includes a left heat exchanger disposed at the left side of the inside of the box and a right heat exchanger disposed at the right side of the inside of the box. ; The left heat exchanger and the right heat exchanger are arranged side by side in the left-right direction, and the left heat exchanger has a first refrigerant pipe piping part connected to the outdoor heat exchanger at a position on the right side of the left heat exchanger, The right heat exchanger has a second refrigerant pipe piping portion connected to the outdoor heat exchanger at a position on the left side of the right heat exchanger. The positions near the center in the left-right direction of the body meet or are bundled with each other and extend toward the back side.

In the air conditioner, the drainage piping unit, the first refrigerant pipe piping unit, and the second refrigerant pipe piping unit are bundled at the near-central position in the left-right direction of the box and extend toward the back side. .

According to this air conditioner, the allowable range of the setting error can be sufficiently secured, and the piping can be handled efficiently.

10‧‧‧ Room

11‧‧‧ ceiling

12, 14, 16, 25, 26, 36W‧‧‧ sidewall

13‧‧‧ floor

20‧‧‧Box

21‧‧‧ above

21C‧‧‧Front cover

21F, 24T‧‧‧Front end

21H, 22H‧‧‧Suction port

22‧‧‧ below

23‧‧‧ back

24‧‧‧ front

25A, 25B‧‧‧Front

25S‧‧‧Left

26S‧‧‧Right

27, 36H‧‧‧Open

28‧‧‧ front upper opening

28H‧‧‧Front and upper blowing section

29‧‧‧ front lower opening

29H‧‧‧Front and lower blowing section

31, 31A‧‧‧Air Filter

32, 32A‧‧‧Air Purification Filter

33‧‧‧ blower

34, 34A, 34B‧‧‧Drive motor

35‧‧‧Multi-wing Centrifugal Fan

35F‧‧‧ Blade Department

35P, 35Q‧‧‧Frame

35R‧‧‧Shaft sleeve

36‧‧‧Shell

36F‧‧‧Frame Department

36J, 36Y‧‧‧through hole

36S‧‧‧Flow Road

36T‧‧‧Guide

37, 37A, 37B‧‧‧Rotary shaft

38, 38M, 38N‧‧‧ heat exchanger

38A‧‧‧ Upper heat exchange section

38B‧‧‧ Lower heat exchange department

39F‧‧‧ heat sink

39MS, MS‧‧‧‧The first refrigerant pipe piping department

39NS, NS‧‧‧Second refrigerant pipe piping department

39S‧‧‧Refrigerant tube

39T‧‧‧Pipe bundle

40‧‧‧Wind direction adjustment department

41‧‧‧ movable panel

41A‧‧‧Top

41B‧‧‧ lower end

41T, 42T, 43T‧‧‧ shaft support

41U‧‧‧Support

42‧‧‧ Upper wind vane

42A, 43A‧‧‧Front

43‧‧‧Lower wind direction board

50‧‧‧ Drain pan unit

51‧‧‧Left receiving department

51S, 52S, 53S‧‧‧Inner surface

51T, 52T‧‧‧ both ends

52‧‧‧Right receiving department

53‧‧‧ Central Undertaking Department

54‧‧‧Groove part

55‧‧‧Drainage Piping Department

55A‧‧‧first end

55B‧‧‧Second end

100, 101‧‧‧ air conditioner

200‧‧‧ outdoor heat exchanger

W‧‧‧Width

h‧‧‧ height

FIG. 1 is a perspective view showing a state in which the air conditioner 100 according to the embodiment is installed in a room 10.

FIG. 2 is a perspective view showing the air conditioner 100 in the embodiment.

FIG. 3 is an arrow cross-sectional view taken along the line III-III in FIG. 2.

FIG. 4 is an arrow cross-sectional view taken along the line IV-IV in FIG. 2.

FIG. 5 is a perspective view showing a blower 33 included in the air conditioner 100 according to the embodiment.

FIG. 6 is a perspective view showing one of a plurality of multi-blade centrifugal fans 35 included in the blower 33 included in the air conditioner 100 according to the embodiment.

FIG. 7 is a plan view schematically showing a blower 33 and a heat exchanger 38 included in the air conditioner 100 according to the embodiment.

FIG. 8 is a perspective view showing a state when the air conditioner 100 according to the embodiment is in a state of air-conditioning operation or air supply operation.

FIG. 9 is a side view showing a state when the air conditioner 100 according to the embodiment is in a state of air-conditioning operation or air supply operation.

FIG. 10 is a cross-sectional view corresponding to FIG. 3 and showing a state when the air conditioner 100 in the embodiment is in a state of air-conditioning operation or air supply operation.

FIG. 11 is a perspective view showing a state when the air conditioner 100 according to the embodiment performs the air-conditioning operation or the air-supply operation in the room 10.

FIG. 12 is a perspective view showing a state when the air conditioner 100 in the embodiment is in a heating operation state.

FIG. 13 is a side view showing a state when the air conditioner 100 in the embodiment is in a heating operation state.

FIG. 14 is a cross-sectional view corresponding to FIG. 3 and showing a state when the air conditioner 100 according to the embodiment is in a heating operation state.

FIG. 15 is a perspective view showing a state when a heating operation is performed in the room 10 by the air conditioner 100 according to the embodiment.

FIG. 16 is a perspective view showing a part of a blower included in the air conditioner in Embodiment 6. FIG.

FIG. 17 is a plan view showing a blower included in the air conditioner in Embodiment 7. FIG.

FIG. 18 is a front view showing a part of the blower (the drive motor 34A, the multi-blade centrifugal fan 35, and the casing 36 (36a, 36b)) included in the air conditioner in Embodiment 7. FIG.

FIG. 19 is a perspective view showing the front and upper surfaces of a part of the blower (the drive motor 34A, the multi-blade centrifugal fan 35, and the casing 36) included in the air conditioner in Embodiment 7. FIG.

FIG. 20 is a first perspective view showing a state of a back surface and a top surface of a part of a blower (a drive motor 34A, a multi-blade centrifugal fan 35, and a casing 36) included in the air conditioner in Embodiment 7. FIG.

FIG. 21 is a second perspective view showing a state of a back surface and a top surface of a part of a blower (a drive motor 34A, a multi-blade centrifugal fan 35, and a casing 36) included in the air conditioner in Embodiment 7. FIG.

22 is a plan view schematically showing a blower and a heat exchanger 38 included in the air conditioner in Embodiment 7. FIG.

FIG. 23 is a perspective view showing the air conditioner 101 and the outdoor heat exchanger 200 in the eighth embodiment.

Fig. 24 is a front view showing the air conditioner 101 in the ninth embodiment.

FIG. 25 is an arrow sectional view taken along the line XXV-XXV in FIG. 23 and FIG. 24.

Fig. 26 is a side view showing the air conditioner 101 in the eighth embodiment.

Fig. 27 is a perspective view showing an exploded state of the air conditioner 101 in the eighth embodiment.

FIG. 28 is a perspective view showing an exploded state of the heat exchanger 38 and the drain pan unit 50 included in the air conditioner 101 in Embodiment 8. FIG.

The embodiment will be described below with reference to the drawings. The same parts and corresponding parts are marked with the same reference signs, and there may be cases where the description is not repeated.

[Embodiment 1]

The configuration of the air conditioner 100 according to the embodiment will be described with reference to FIGS. 1 to 7. The operation of the air conditioner 100 will be described later with reference to FIGS. 8 to 15. FIG. 1 is a perspective view showing a state where an air conditioner 100 is installed in a room 10. FIG. 2 is a perspective view of the air conditioner 100. FIG. 3 is an arrow sectional view taken along line III-III in FIG. 2, and FIG. 4 is an arrow sectional view taken along line IV-IV in FIG. 2.

As shown in FIGS. 1 and 2, the air conditioner 100 is used as a so-called air conditioner. The air conditioner 100 of the present embodiment fixes the back surface 23 (see FIGS. 3 and 4) of the case 20 to the side wall 12 by using a metal part or the like (not shown). The air conditioner 100 may be installed on the ceiling 11 by not being limited to such a fixing structure, and the upper surface 21 of the cabinet 20 may be fixed to the ceiling 11 of the room 10 by using metal parts or the like.

As shown in FIGS. 3 and 4, the air conditioner 100 includes a cabinet 20, an air filter 31, an air cleaning filter 32, a blower 33, a heat exchanger 38, and an airflow direction adjustment unit 40.

(Box 20)

The cabinet 20 has an upper surface 21 arranged to face the ceiling 11 of the room 10, a lower surface 22 positioned on the floor surface (refer to the floor surface 13 in FIG. 11), a rear surface 23 disposed on the side wall 12 (FIGS. 1, 11), The front surface 24 located on the side opposite to the back surface 23 (that is, the front side of the cabinet 20), the side wall 25 arranged on one side in the longitudinal direction of the cabinet 20, and the other end arranged in the longitudinal direction of the cabinet 20 Flank side wall 26.

The upper surface 21 of the box body 20 has a substantially plate shape, and the upper surface 21 side of the box body 20 is closed. The lower surface 22 of the case 20 is located on the opposite side of the upper surface 21, and a suction port 22H is formed in the lower surface 22 (FIG. 3 and FIG. 4). The suction port 22H extends in a substantially horizontal direction so as to follow the longitudinal direction of the case 20.

The back surface 23 is provided between the rear end portion of the upper surface 21 and the rear end portion of the lower surface 22. When the air conditioner 100 is installed on the side wall 12, the rear surface 23 is substantially parallel to the vertical direction. The front surface 24 is formed in a substantially L shape from the front end portion of the lower surface 22. Between the front end portion 24T (FIG. 3 and FIG. 4) of the front surface 24 and the front end portion 21F of the upper surface 21, a space for arranging the shaft support portions 41T, 42T, 43T, the heat exchanger 38 and the like is formed.

The details will be described later. Each of the shaft support portions 41T, 42T, and 43T has a shape extending in a rod shape. The shaft support portions 41T, 42T, and 43T all extend in a direction perpendicular to the paper surface of FIGS. 3 and 4. Both ends of the shaft support portion 41T, both ends of the shaft support portion 42T, and both ends of the shaft support portion 43T are respectively passed by The side wall 25 and the side wall 26 are fixed.

The above-mentioned shaft support portions 41T, 42T, and 43T are arranged between the front end portion 24T of the front face 24 and the front end portion 21F of the upper face 21, thereby distinguishing the space between the front end portion 24T of the front face 24 and the front end portion 21F of the upper face 21. A space (opening 27) on the front side of the cabinet 20 is formed with a front upper opening 28 and a front lower opening 29.

(Air filter 31 and air cleaning filter 32)

As shown in FIGS. 3 and 4, an air filter 31 and an air cleaning filter 32 are provided inside the case 20. The air filter 31 is arranged so as to cover the suction port 22H above the suction port 22H. The air cleaning filter 32 is disposed above the air filter 31. The air cleaning filter 32 is configured by, for example, a HEPA filter.

(Blower 33 and heat exchanger 38)

As shown in FIGS. 3 and 4, the blower 33 is disposed above the air cleaning filter 32, and the heat exchanger 38 is disposed in front of the blower 33. The heat exchanger 38 is not limited to the configuration described above, and may be disposed above the front of the blower 33. FIG. 5 is a perspective view showing the blower 33. As shown in FIGS. 3 to 5, the blower 33 includes a driving motor 34, a plurality of multi-wing centrifugal fans 35 (35 a to 35 d), and a rotating shaft 37.

The plurality of multi-wing centrifugal fans 35 (35a to 35d) are connected to the drive motor 34 through the rotation shaft 37, and are arranged in a horizontal direction so as to be coaxial with the drive motor 34. In this embodiment, two multi-blade centrifugal fans 35 (35a to 35d) are provided on one side and the other side of the drive motor 34 in the axial direction. The multi-blade centrifugal fan 35 (35a, 35b) and the multi-blade centrifugal fan 35 (35c, 35d) are arranged at positions symmetrical about the center of the position of the drive motor 34. In other words, the drive motor 34 is disposed in the horizontal direction (longitudinal direction of the cabinet 20) near the center of the cabinet 20, and a plurality of multi-wing centrifugal fans 35 (35a to 35d) are arranged in the horizontal direction, which is more than the drive motor. 34 outside position.

FIG. 6 is a perspective view showing one of a plurality of multi-blade centrifugal fans 35 included in the blower 33. The multi-blade centrifugal fan 35 includes frame bodies 35P and 35Q formed in a ring shape, a sleeve 35R standing upright at the center of the frame body 35Q, and a plurality of blade portions 35F. The frame bodies 35P and 35Q are arranged at positions separated from each other in the axial direction. Each of the plurality of blade portions 35F is supported at both ends by the frame bodies 35P and 35Q. The multi-blade centrifugal fan 35 is connected to the rotating shaft 37 (FIG. 5) through a sleeve 35R. The multi-blade centrifugal fan 35 sends the air taken in from the inner peripheral side to the outer peripheral side by a plurality of blade portions 35F that rotate. The multi-blade centrifugal fan 35 sends air from the center of rotation of the fan to the outside in the radial direction by using a centrifugal force.

FIG. 7 is a plan view schematically showing the blower 33 and the heat exchanger 38. As shown in FIGS. 3 to 5 and 7, the blower 33 according to this embodiment further includes a plurality of casings 36 (36 a to 36 d). Each of the plurality of casings 36 (36a to 36d) has a spiral flow path 36S (Figs. 3 and 4) formed on the inside, and is arranged to cover each of the plurality of multi-wing centrifugal fans 35 (35a to 35d). Around.

Each of the plurality of casings 36 (36a to 36d) has a side wall 36W, a through hole 36J, and an opening 36H. The side wall 36W and the through hole 36J are located on the opposite sides of the multi-blade centrifugal fan 35 in the direction of the rotation axis (rotation axis 37) of the multi-blade centrifugal fan 35. The opening 36H is formed on the front side of the case cover 36, and the case cover 36 is arranged so that the opening 36H opens toward the heat exchanger 38 side.

As shown in FIG. 7, each of the plurality of multi-wing centrifugal fans 35 (35a to 35d) is surrounded by each of the plurality of casings 36 (36a to 36d) in the manner described above, whereby the side walls 36W of the casing 36 are located Between two adjacent multi-wing centrifugal fans 35. The multi-blade centrifugal fan 35 rotates to take in air from the through hole 36J, and the air is blown out in front of the casing 36 by the centrifugal force of the multi-blade centrifugal fan 35, and blows to the heat exchanger 38 through the opening 36H. The air that has been heated or cooled by the heat exchanger 38 is caused to pass through the following air outlets (the forward upper blowing section 28H shown in FIGS. 8 and 9 or the forward lower blowing section 29H shown in FIGS. 12 and 13) ) Blow out of the aircraft.

3 and 4, the heat exchanger 38 includes an upper heat exchange portion 38A and a lower heat exchange portion 38B. Each of the upper heat exchange section 38A and the lower heat exchange section 38B includes a plurality of refrigerant tubes (tubes) and a plurality of fins (plate materials) that support the refrigerant tubes. The entire upper heat exchanging portion 38A is disposed obliquely so as to extend from the top toward the bottom and backward from the front, and the entire lower heat exchanging portion 38B is obliquely disposed so as to extend from the rear to the front as the bottom becomes upward.

The heat exchanger 38 has a substantially V-shape as a whole, and is fixed to the front side of the heat exchanger 38 by the case 20 or the like. The heat exchanger 38 is arranged to face the blower 33 from the front side, and can heat or cool the air from the blower 33.

(Opening 27 and wind direction adjusting section 40)

Referring to FIG. 3, as described above, the opening 27 (space) is formed between the front end portion 24T of the front surface 24 of the box 20 and the front end portion 21F of the upper surface 21 of the box 20. The shaft support portion 42T is disposed near the lower portion of the front end portion 21F of the upper surface 21, and the shaft support portion 43T is disposed near the front portion (near the lower portion) of the front end portion 24T of the front surface 24. The shaft support portion 41T is disposed at a position exactly between the shaft support portion 42T and the shaft support portion 43T.

The shaft support portions 41T, 42T, and 43T are arranged in the opening 27 (space), and a front upper opening 28 and a front lower opening 29 are formed on the front side of the casing 20. The front upper opening 28 is formed between the shaft supporting portion 41T and the shaft supporting portion 42T, and the front lower opening 29 is formed between the shaft supporting portion 41T and the shaft supporting portion 43T.

The airflow direction adjustment unit 40 is arranged so as to cover the opening 27 (here, the front upper opening 28 and the front lower opening 29) formed on the front surface side of the case 20 from the front side. The wind direction adjusting section 40 in this embodiment includes a movable panel 41, an upper wind direction plate 42, and a lower wind direction plate 43. The movable panel 41, the upper wind direction plate 42, and the lower wind direction plate 43 each have a plate-like shape and extend by a length approximately the same as the length in the longitudinal direction (horizontal direction) of the cabinet 20 (Figs. 1 and 2). .

The movable panel 41 has an upper end 41A and a lower end 41B, and a portion between the upper end 41A and the lower end 41B of the movable panel 41 is formed into a curved concave shape so as to be recessed toward the inner side (side of the back surface 23) of the case 20. The height of the movable panel 41 (the distance between the upper end 41A and the lower end 41B) is set so that its height dimension is slightly larger than the height h of the case 20. A support portion 41U is formed at a position between the upper end 41A and the lower end 41B of the movable panel 41 so as to protrude toward the back surface (back surface 23), and the support portion 41U has a plate-like shape.

FIG. 3 illustrates a cross-sectional shape at a substantially central position in the longitudinal direction (horizontal direction) of the movable panel 41, and FIG. 4 illustrates a cross-sectional shape at a position near the end in the longitudinal direction of the movable panel 41. The support portion 41U is provided at least at a substantially central position in the longitudinal direction of the movable panel 41 (see FIG. 3), It is connected to the shaft support portion 41T. The movable panel 41 is pivotally supported by the shaft support portion 41T at a substantially central position in the vertical direction (height direction) of the case 20.

The movable panel 41 is not limited to the position as described above, and a plurality of support portions 41U may be provided so as to be arranged at intervals in the longitudinal direction of the movable panel 41. The movable panel 41 is pivotally supported by one or more pivotal support portions 41T so as to be swingable in directions indicated by arrows AR1 and AR2.

The upper wind direction plate 42 is formed in a plate shape having a height dimension shorter than the height dimension of the movable panel 41. The upper wind direction plate 42 is connected to the shaft support portion 42T, and is pivotably supported by the shaft through the shaft support portion 42T. The lower wind direction plate 43 is also formed in a plate shape having a height dimension shorter than the height dimension of the movable panel 41. The lower wind direction plate 43 is connected to the shaft support portion 43T, and is pivotably supported by the shaft through the shaft support portion 43T.

(Stop state)

2 to 4 show how the air conditioner 100 is in a state where the operation is stopped. When the air conditioner 100 is switched from the operating state to the stopped state (ie, when the operation is stopped), each of the movable panel 41 and the upper wind direction plate 42 is rotated, so that the rear surface of the movable panel 41 and the upper wind direction plate 42 are rotated. The front ends 42A are close to each other. Each of the movable panel 41 and the upper wind direction plate 42 is disposed at a position where the front upper opening 28 is closed by rotating as described above. Similarly, when each of the movable panel 41 and the lower wind direction plate 43 is rotated, the rear surface of the movable panel 41 and the front end 43A of the lower wind direction plate 43 come close to each other. Each of the movable panel 41 and the lower wind direction plate 43 is disposed at a position where the front lower opening 29 is closed by rotating as described above.

(During air-conditioning operation or air supply operation)

FIGS. 8 and 9 are a perspective view and a side view, respectively, showing the appearance of the air conditioner 100 when the air conditioner operation or the air supply operation is being performed. FIG. 10 is a cross-sectional view showing a state when the air conditioner 100 is in a state of an air-conditioning operation or an air supply operation corresponding to FIG. 3.

As shown in FIGS. 8 to 10, when the air conditioner 100 is switched to the air-conditioning operation or the air-supply operation (that is, during the air-conditioning operation or the air-supply operation), the movable panel 41 and the lower air direction plate 43 are rotated downward. The rear surface of the movable panel 41 approaches the front end 25B (FIG. 9) on the lower side of the side wall 25, the front end (not shown) on the lower side of the side wall 26 having the same configuration, and the lower wind direction plate 43, so that the front lower opening 29 (Figure 10) Occluded.

On the other hand, when the movable panel 41 is rotated downward and the upper wind direction plate 42 is rotated upward, the front upper opening 28 among the openings 27 is opened. A front upper blowout portion 28H is formed between the upper end 41A of the movable panel 41 and the front end 42A of the upper wind direction plate 42 (above the front of the cabinet 20). The details will be described later. In this state, the front-bottom blowing section 29H (FIG. 13 and FIG. 14) described below is closed. In this state, the plurality of multi-wing centrifugal fans 35 are rotated by the drive motor 34 (FIG. 5).

Air is taken into the cabinet 20 through the suction port 22H, the air filter 31, and the air cleaning filter 32. The air passes through the heat exchanger 38 and the opening (front upper opening 28) and is adjusted in the wind direction by the wind direction adjusting section 40 (here, the movable panel 41 and the upper wind direction plate 42), and is formed above the wind direction adjusting section 40. The front upper blowing section 28H on the side is blown out of the machine (arrow DR10 shown in FIG. 9).

As shown in FIG. 11, the air that has been blown out from the front upper blowing portion 28H travels along the ceiling 11 and then moves downward along the side walls 14 to 16 opposite to the air conditioner 100. The air further travels along the floor surface 13 to the side of the air conditioner 100. The air rises along the side wall 12 toward a suction port 22H provided on the lower surface 22 of the air conditioner 100. During the cooling operation, the entire room 10 is cooled by the air flow as described above. In the air conditioner 100, a circulating airflow as described above can be formed in the room 10, and an efficient cold air (cold room) effect or air supply effect can be obtained.

(During heating operation)

12 and 13 are a perspective view and a side view, respectively, showing a state when the air conditioner 100 is in a heating operation state. FIG. 14 is a cross-sectional view showing a state when the air conditioner 100 is in a state of heating operation corresponding to FIG. 3.

As shown in FIGS. 12 to 14, when the air conditioner 100 is switched to the heating operation state (that is, during the heating operation), the movable panel 41 and the upper wind direction plate 42 are rotated upward. The rear surface of the movable panel 41 approaches the front end 25A (FIG. 13) on the upper side of the side wall 25, the front end (not shown) on the upper side of the side wall 26 having the same configuration, and the upper wind direction plate 42, so that the front upper opening 28 (Figure 14) Occluded.

On the other hand, when the movable panel 41 is rotated upward and the lower wind direction plate 43 is rotated downward, the front lower opening 29 among the openings 27 is opened. Between the lower end 41B of the movable panel 41 and the front end 43A of the lower wind direction plate 43 (below the front of the case 20), a lower front blowing portion 29H is formed. In this state, the above-mentioned front upper blowing portion 28H (FIGS. 9 and 10) is closed. In this state, the plurality of multi-wing centrifugal fans 35 are rotated by the drive motor 34 (FIG. 5).

Air is taken into the cabinet 20 through the suction port 22H, the air filter 31, and the air cleaning filter 32. The air passes through the heat exchanger 38 and the opening (front lower opening 29) and is adjusted in the wind direction by the wind direction adjusting section 40 (here, the movable panel 41 and the lower wind direction plate 43), and is formed under the wind direction adjusting section 40 The front downward blower 29H on the side blows out of the machine (arrow DR20 shown in FIG. 13).

As shown in FIG. 15, the air that has been blown out from the front-bottom blow-out portion 29H moves down the side wall 12 and then travels along the floor surface 13. The air further moves up and down the side walls 14-16. By the air flow as described above, the entire room 10 is warmed. In the air conditioner 100, the airflow as described above can be formed in the room 10, and an efficient heating (warming room) effect can be obtained.

(Function and effect)

According to the air conditioner 100, a suction port 22H is formed on the lower surface 22 of the cabinet 20, and the air taken in from the suction port 22H passes through the air filter 31 and the air cleaning filter 32. Therefore, it is possible to perform air conditioning with less energy consumption while always purifying the air. In addition, the blower 33 implements air supply by a plurality of multi-wing centrifugal fans 35 arranged in a horizontal direction. Therefore, by reducing the depth dimension, it is possible to reduce the size as compared with the past, to reduce the feeling of pressure, and to reduce restrictions on the indoor environment and the improvement of aesthetics.

In the air conditioner 100 according to the present embodiment, the movable panel 41 is axially supported by the shaft support portion 41T at approximately the center position in the horizontal direction and (up-down direction) height direction of the casing 20. According to this configuration, the movable panel 41 can form an up-and-down type blowout opening above and in front of the cabinet 20 and below the front. Even if a complicated structure such as switching of the upper and lower shafts is not used, or a locking mechanism is not used, the structure can be configured The simple structure is used to open and close the blow-off opening.

[Embodiment 2]

Referring to FIG. 3, as a suitable embodiment, if the diameter of the multi-wing centrifugal fan 35 is set to D [mm] and the height of the box 20 is set to h [mm], then 0.9 × h ≦ 2 × The relationship of D ≦ 1.1 × h is established. As a more suitable embodiment, when the depth of the case 20 is set to L [mm], a relationship of 0.9 × L ≦ h + 1/2 × D ≦ 1.1 × L is satisfied.

According to these configurations, although the depth dimension of the cabinet 20 is suppressed from being increased, the air supply which can overcome the pressure loss generated in the air cleaning filter 32 can be realized, the energy saving performance can be improved, and the feeling of pressure can be reduced and reduced. Restrictions on indoor environment or improving aesthetics.

[Embodiment 3]

As shown in FIG. 4, the shortest distance from the back surface of the movable panel 41 to the upper end portion of the front upper opening 28 (here, the position of the shaft support portion 42T) when the operation is stopped is set to a. In addition, the shortest distance from the back surface of the movable panel 41 to the lower end portion of the front lower opening 29 (here, the position of the shaft support portion 43T) when the operation is stopped is set to b.

As shown in FIG. 10, the shortest distance from the rear surface of the movable panel 41 to the upper end portion of the front upper opening 28 (here, the position of the shaft support portion 42T) during the air-conditioning operation is set to L1. As shown in FIG. 14, the shortest distance from the back surface of the movable panel 41 to the lower end portion of the front lower opening 29 (here, the position of the shaft support portion 43T) during the heating operation is set to L2.

When each value is defined as described above, it is preferable that the relationship of the following formula (1) and formula (2) is established.

0.9 × (a + b) ≦ L1 ≦ 1.1 × (a + b) ‧‧‧Formula (1)

0.9 × (a + b) ≦ L2 ≦ 1.1 × (a + b) ‧‧‧Formula (2)

With the above-mentioned configuration, it is possible to form a top-to-bottom blowout opening with a simpler structure above the front of the cabinet 20 and below the front thereof, and it is possible to improve airflow control when the air conditioner 100 is used as an air conditioner. In addition, the structure can also realize the opening and closing of the blow-off port of the vertical type with a simple structure.

[Embodiment 4]

Referring to FIG. 10, as a suitable embodiment, it is preferable that the upper wind direction plate 42 is supported by the shaft at the upper end portion of the upper opening 28 on the front side. When the air-conditioning operation is performed, the upper wind direction plate 42 is supported by the shaft 42T) as the center rotates upward, thereby opening the front upper opening 28, and the straight line connecting the shaft support 42T and the front end 42A of the upper wind directing plate 42 is at an angle θ1 of 20 degrees below the front with respect to the horizontal AP Way to configure. According to this configuration, it is possible to send a more appropriate airflow from the front upper blowing portion 28H during the cold room. It is also possible to further suppress the occurrence of dew on the ceiling, for example.

[Embodiment 5]

Referring to FIG. 14, as a suitable embodiment, it is preferable that the lower wind direction plate 43 is pivotally supported at the lower end portion of the lower opening 29 on the front side. During the heating operation, the lower wind direction plate 43 is supported by the shaft ( The shaft support 43T) is rotated downward from the center to open the front lower opening 29, and The straight line between the shaft support portion 43T and the front end 43A of the lower wind direction plate 43 is arranged so as to be an angle θ2 of 45 ° below the front with respect to the vertical direction BP. According to this configuration, it is possible to send a more appropriate airflow from the front and lower blowing portions 29H during the heating. It is possible to suppress, for example, the situation where the heating is difficult to reach the floor surface due to buoyancy, and it is possible to obtain an efficient heating effect.

In addition, the lower wind direction plate 43 may be configured such that a short circulation phenomenon in which air blown through the front lower opening 29 is immediately sucked by the suction port 22H during the heating operation is suppressed by the lower wind direction plate 43. It is possible to send a more appropriate airflow in a warm room, and it is also possible to suppress the temperature of the cabinet 20 from increasing unnecessarily, thereby further improving the energy saving performance.

[Embodiment 6]

FIG. 16 corresponds to FIG. 5 in this embodiment, and is a perspective view showing a blower included in the air conditioner in Embodiment 6. FIG. In this embodiment (FIG. 5), the four multi-blade centrifugal fans 35 (35 a to 35 d) are driven by one drive motor 34.

On the other hand, in this embodiment (FIG. 16), two multi-blade centrifugal fans 35 (35a, 35b) are connected to one drive motor 34A through a rotating shaft 37A, and are arranged horizontally so as to be coaxial with the drive motor 34A. . The two multi-wing centrifugal fans 35 (35a, 35b) are driven by a drive motor 34A.

Similarly, two multi-blade centrifugal fans 35 (35c, 35d) are connected to one drive motor 34B through a rotation shaft 37B, and are arranged in a horizontal direction so as to be coaxial with the drive motor 34B. The two multi-wing centrifugal fans 35 (35c, 35d) are driven by a drive motor 34B.

A plurality of multi-blade centrifugal fans 35 (35a to 35d) and drive motors 34A and 34B are arranged in a coaxial manner in a horizontal direction. The drive motors 34A and 34B are arranged in the horizontal direction (longitudinal direction of the cabinet 20) near the center of the cabinet 20 and are adjacent to each other. The multi-wing centrifugal fan 35 (35a, 35b) is horizontally disposed at a position more outward than the drive motor 34A, and the multi-wing centrifugal fan 35 (35c, 35d) is horizontally disposed at a position more outer than the drive motor 34B.

When the above-mentioned configuration is adopted, the multi-blade centrifugal fan 35 (35a, 35b) driven by the drive motor 34A and the multi-blade centrifugal fan 35 (35c, 35d) driven by the drive motor 34B can be easily implemented. Different speeds such as rotation speed, air volume, and blowing wind direction, or winds with different temperatures or wind speeds are blown separately from the left and right, which can provide users with more finely conditioned air.

[Embodiment 7]

FIG. 17 is a plan view showing a blower included in the air conditioner in Embodiment 7. FIG. FIG. 18 is a front view showing a part of a blower (a drive motor 34A, a multi-wing centrifugal fan 35, and a casing 36 (36a, 36b)) included in an air conditioner in Embodiment 7. FIG. This embodiment is different from the other embodiments described above in the configuration of the casing 36 provided in the blower.

Each of the plurality of casings 36 (36a to 36d) has a spiral flow path 36S (Fig. 3 and Fig. 4) formed inside, and is arranged to cover each of the plurality of multi-wing centrifugal fans 35 (35a to 35d). In this aspect, the present embodiment is common to the above-mentioned embodiments (see FIG. 17). In addition, the aspect that each of the plurality of casings 36 (36a to 36d) is arranged so as to open toward the heat exchanger 38 side is also common to this embodiment (see FIG. 22).

On the other hand, as shown in FIGS. 18 to 22, in the present embodiment, a frame portion 36F and a plurality of deflectors 36T are provided on the heat exchanger 38 side of each of the case covers 36 (36a to 36d). A through hole 36Y is provided on one side in the axial direction of the multi-blade centrifugal fan 35 (FIG. 20), and a through hole 36J is provided on the other side in the axial direction of the multi-blade centrifugal fan 35 (FIG. 21). The through-hole 36Y and the through-hole 36J are located on the opposite sides of the multi-wing centrifugal fan 35 in the direction of the rotation axis of the multi-wing centrifugal fan 35 (FIG. 22).

The frame portion 36F is formed in a rectangular frame shape, and has a shape extending outward in a flange shape on the front side of the case cover 36 (FIGS. 18 and 19). The shape of the inner peripheral surface of the frame portion 36F is formed so that the cross-sectional area of the flow path of the opening 36H formed on the downstream side (front side) of the multi-blade centrifugal fan 35 gradually increases from the upstream side toward the downstream side.

The plurality of deflectors 36T are arranged at intervals inside the frame portion 36F so as to extend in a direction perpendicular to the rotation axes (the rotation axes 37A and 37B) of the multi-blade centrifugal fan 35. In this embodiment, a total of five deflectors 36T are arranged inside the frame portion 36F. The center deflector 36T among the five pieces has a flat plate shape.

The two flow deflectors 36T located on both outer sides of the flat plate-shaped deflector 36T are formed to curve outward as they go from the upstream side to the downstream side. The two deflectors 36T located on both outer sides are also formed to curve outward as they go from the upstream side toward the downstream side. The deflectors 36T arranged on the outer side are formed to be bent more steeply outward than the deflectors 36T arranged on the inner side.

As shown in FIG. 22, the plurality of deflectors 36T configured as above have a relatively large airflow path between each of the plurality of multi-wing centrifugal fans 35 (35a to 35d) and the heat exchanger 38. The rotation axes (rotation axes 37A, 37B) of the wing centrifugal fan 35 are divided in a vertical direction. According to this configuration, the heat exchanger 38 can be more uniformly blown in the longitudinal direction, and it can be an air conditioner equipped with an air cleaning filter 32 with higher energy efficiency.

[Embodiment 8]

The air conditioner 101 according to the eighth embodiment will be described with reference to FIGS. 23 to 28. FIG. 23 is a perspective view showing the air conditioner 101 and the heat exchanger 200. FIG. 24 is a front view of the air conditioner 101. For convenience of explanation, the wind direction adjusting unit 40 (see FIGS. 1, 2, and the like) is not shown in FIG. 24 (the same applies to FIGS. 25 to 27).

FIG. 25 is an arrow sectional view taken along the line XXV-XXV in FIG. 23 and FIG. 24. FIG. 26 is a side view showing the air conditioner 101. FIG. 27 is a perspective view showing an exploded state of the air conditioner 101. FIG. 28 is a perspective view showing an exploded state of the heat exchanger 38 and the drain pan unit 50 included in the air conditioner 101. The eighth embodiment differs from the first to seventh embodiments in the following points.

(Box 20)

In the eighth embodiment, the cabinet 20 of the air conditioner 101 has an upper surface 21 arranged to face the ceiling (see the ceiling 11 in FIG. 11), a lower surface 22 located on the floor surface (see the floor 13 in FIG. 11), and The back surface 23 on the side wall (refer to the side wall 12 in FIG. 11), the front surface 24 on the side opposite to the back surface 23, the right surface 26S from the back surface 23 to the front 24 and the right side, and the left surface 25S from the back surface 23 to the front 24 and the left side . The right side 26S is formed by the outer surface of the side wall 26, and the left side 25S is formed by the outer surface of the side wall 25.

In the eighth embodiment, if the height of the box 20 is set to h [mm] (FIG. 25) and the width of the box 20 is set to W [mm] (see FIG. 24), the relationship of W ≧ 4 × h Established. The height h of the cabinet 20 is the vertical direction among the portions constituting the upper surface 21 of the cabinet 20 and the lowermost portion of the components constituting the lower surface 22 of the cabinet 20 in the vertical direction. Distance. In addition, the width W of the box body 20 is the leftmost portion in the horizontal direction among the portions constituting the left surface 25S of the box 20 and the rightmost portion in the horizontal direction among the portions constituting the right surface 26S of the box 20. Distance in the horizontal direction.

In each of the first to seventh embodiments described above, the upper surface 21 side of the box 20 is closed, and a suction port 22H is formed in the lower surface 22 of the box 20 (FIG. 3 and FIG. 4). On the other hand, in the eighth embodiment, as shown in FIGS. 23 and 25, the upper surface 21 side of the box 20 is not closed, and a suction port 21H is formed on the upper surface 21. The suction port 21H is provided in the upper surface 21 near the back surface 23. A suction port 22H is also formed on the lower surface 22 of the case 20 (FIG. 25). Further, a front surface cover 21C extending in a horizontal direction (left-right direction) is provided at a position further forward of the end portion 21F before the upper surface 21.

Inside the cabinet 20, in addition to the air filter 31 and the air cleaning filter 32, an air filter 31A and an air cleaning filter 32A are further provided. The air filter 31A is arranged below the suction port 21H provided on the upper surface 21 side to close the suction port 21H from the inside of the casing 20, and the air is cleaned. The filter 32A is arranged so as to cover the air filter 31A from the lower side. The air cleaning filter 32A is also composed of, for example, a HEPA filter.

In the air conditioner 101 of this embodiment, not only air is taken into the cabinet 20 through the suction port 22H (FIG. 25), the air filter 31 (FIG. 25), and the air cleaning filter 32 (FIG. 25), but also Air is taken into the cabinet 20 through the suction port 21H, the air filter 31A, and the air cleaning filter 32A.

After that, the air passes through the heat exchanger 38 and the opening 27 (the front upper opening 28 or the front lower opening 29), and the wind direction is adjusted by the wind direction adjusting section 40 (FIG. 23), and then passes through the front upper blowing section 28H (FIG. 10). Or, the front and bottom blowing section 29H (FIG. 14) blows out of the machine. According to the air conditioner 101 of the eighth embodiment, the air volume can be increased compared with the air conditioner of each of the first to seventh embodiments. The technical idea of providing the suction port 21H on the upper face 21 side without occluding the upper face 21 side may be implemented in combination with the ideas already described in each of the first to seventh embodiments.

(Heat exchanger 38)

As shown in FIGS. 24 and 27, the heat exchanger 38 according to this embodiment includes a heat exchanger 38M (left heat exchanger) and a heat exchanger 38N (right heat exchanger). The heat exchanger 38M is arranged on the left side 25S side inside the case 20, and the heat exchanger 38N is arranged on the right side 26S side inside the case 20. The heat exchangers 38M and 38N are aligned with each other in the left-right direction, and can be arranged in front of or in front of the blower 33.

(Heat exchanger 38M)

The heat exchanger 38M includes a plurality of fins 39F (see also FIG. 25) and a refrigerant pipe 39S (tube). Each of the plurality of fins 39F has a flat plate shape, and is arranged in a direction parallel to the rotation center of the multi-blade centrifugal fan 35 so as to have a positional relationship parallel to each other. The refrigerant pipe 39S is attached to a plurality of fins 39F. The heat exchanger 38M (left heat exchanger) has a first heat exchanger connected to the outdoor heat exchanger 200 (Fig. 23) on the right side of the left heat exchanger 38M (left heat exchanger). Media pipe piping section 39MS. The first refrigerant pipe piping unit 39MS communicates the refrigerant pipe 39S included in the heat exchanger 38M with the outdoor heat exchanger 200.

(Heat exchanger 38N)

The heat exchanger 38N also includes a plurality of fins 39F (see also FIG. 25) and a refrigerant pipe 39S (tube). Each of the plurality of fins 39F has a flat plate shape, and is arranged in a direction parallel to the rotation center of the multi-blade centrifugal fan 35 so as to have a positional relationship parallel to each other. The refrigerant pipe 39S is attached to a plurality of fins 39F. The heat exchanger 38N (right heat exchanger) has a second refrigerant pipe piping portion 39NS connected to the outdoor heat exchanger 200 (FIG. 23) on the left side of the right heat exchanger 38N (right heat exchanger). The second refrigerant pipe piping unit 39NS communicates the refrigerant pipe 39S included in the heat exchanger 38N with the outdoor heat exchanger 200.

In this embodiment, the first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS are bundled with each other at positions near the center in the left-right direction of the casing 20, and the positions near the center are directed as the piping bundle 39T. The back surface 23 (see FIG. 25) side extends. The first refrigerant pipe piping unit 39MS and the second refrigerant pipe piping unit 39NS are not limited to this configuration, and can be merged at a position near the center in the left-right direction of the cabinet 20, and from the position near the center to the back in a confluent state. 23Extended.

(Drain pan unit 50)

As shown in FIGS. 25, 27, and 28, a drain pan unit 50 is provided below the heat exchanger 38 (heat exchangers 38M, 38N) to receive discharged water dripping from the heat exchanger 38. As shown in FIG. 28, the drain pan unit 50 of this embodiment includes a left receiving portion 51, a right receiving portion 52, a central receiving portion 53, and a drain pipe piping portion 55.

The left receiving portion 51, the central receiving portion 53 and the right receiving portion 52 are arranged in the order in which the heat exchangers 38M, 38N are aligned (here, the same direction as the extending direction of the cabinet 20). The inner surface 51S of the left receiving part 51, the inner surface 52S of the right receiving part 52, and the center receiving part 53 Each of the inner surfaces 53S has a concave shape opened toward the upper side, and the recessed portion 54 is formed by the inner surfaces 51S, 52S, and 53S. The groove portion 54 provided in the drain pan unit 50 has a shape extending along the long sides of the heat exchangers 38M and 38N (here, the same direction as the extension direction of the cabinet 20), and can receive the heat exchanger 38M , 38N of drainage.

The drain pipe portion 55 includes a first end portion 55A and a second end portion 55B. The first 55A end portion is connected to the groove portion 54, and the second end portion 55B is in communication with the outdoor. The drainage pipe piping portion 55 allows the water received by the recessed portion 54 to be discharged outdoors through the first end portion 55A and the second end portion 55B.

The inner surfaces 51S, 52S, and 53S in the groove portion 54 are surface portions that are arranged to face the heat exchangers 38M and 38N and receive drainage from the heat exchangers 38M and 38N. This surface portion (inner surfaces 51S, 52S, 53S) appears at the ends 51T, 52T in the left-right direction of the cabinet 20, and the height in the up-down direction is the highest, and it is near the center in the left-right direction of the cabinet 20 The height in the vertical direction is a substantially V-shaped shape having the lowest height.

The first end portion 55A of the drainage pipe piping portion 55 is connected to the groove portion 54 at a position near the center (here, the position where the center receiving portion 53 is provided) in the left-right direction of the box body 20. The drainage pipe piping portion 55 extends from the first end portion 55A toward the back surface 23 side at a position near the center in the left-right direction of the box body 20. In this embodiment, as a preferable configuration, the drainage piping portion 55, the first refrigerant pipe piping portion MS, and the second refrigerant pipe piping portion NS are bundled at the near-central position in the left-right direction of the casing 20 and face the back. 23 side extensions.

According to the air conditioner 101 provided with the drain pan unit 50 as described above, the width 20 of the cabinet 20 is an elongated cabinet 20 having a width W that is four times or more the height h of the cabinet 20, but it is opposite to the left receiving portion 51. The difference in height between the two ends in the up-and-down direction can set the distance in the horizontal direction of the left receiving portion 51 to one-half of the total length of the box 20. The same applies to the right receiving portion 52, and the vertical direction of the right receiving portion 52 can be adjusted horizontally with respect to the difference in height between the two ends of the right receiving portion 52. The distance is set to half of the total length of the case 20. That is, the inner surface 51S of the left receiving portion 51 and the inner surface 52S of the right receiving portion 52 constituting the groove portion 54 can be sufficiently inclined.

Thereby, the allowable range of the installation error of the air conditioner 101 can be fully ensured. For example, even if the air conditioner (drain pan unit 50) is installed in a slightly inclined state when the air conditioner 101 is installed, the drainage received by the groove portion 54 of the drain pan unit 50 can be performed quickly and without delay. The ground is discharged to the outside through the drainage pipe piping portion 55.

Moreover, in the air conditioner 101 of this embodiment, the drain pipe piping part 55 is extended toward the back side from the 1st edge part 55A near the center in the left-right direction of the box body 20. Even if the air conditioner 101 is arranged so that the left side (left side 25S) of the cabinet 20 is adjacent to the wall surface of the room, the piping may spread only from the center position on the back side of the air conditioner 101 toward the wall surface of the room. Similarly, even if the air conditioner 101 is arranged so that the right side (right side 26S) of the cabinet 20 is adjacent to the wall surface of the room, the pipe can be spread only from the center position on the back side of the air conditioner 101 toward the wall surface of the room. Therefore, even in a case where the width W of the air conditioner 101 is 1 m or more, it is possible to suppress an increase in the cost of a product or installation, and it is possible to suppress a decrease in the efficiency (for example, heat exchange efficiency) of the air conditioner 101.

As described above, in this embodiment, as a preferable configuration, the first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS are bundled with each other at the positions near the center in the left-right direction of the casing 20, The center position extends as a piping bundle 39T toward the back surface 23 (see FIG. 25) side. According to this structure, the refrigerant pipes 39S of the heat exchangers 38M and 38N can be concentrated in the center, the processing of the first refrigerant pipe piping portion 39MS and the second refrigerant pipe piping portion 39NS can be simplified, and the efficiency of the space or the work place can be improved . The first refrigerant pipe piping unit 39MS and the second refrigerant pipe piping unit 39NS are not limited to this configuration, and can be merged at a position near the center in the left-right direction of the cabinet 20, and from the position near the center to the back in a confluent state 23Extended. The same effect can be obtained in this case.

As described above, in the present embodiment, as a more preferable configuration, the drain pipe piping portion 55, the first refrigerant pipe piping portion MS, and the second refrigerant pipe piping portion NS are located at the position near the center in the left-right direction of the casing 20. The bundles extend toward the back surface 23 side. According to this configuration, the processing of the drain pipe piping unit 55, the first refrigerant pipe piping unit 39MS, and the second refrigerant pipe piping unit 39NS can be simplified, and the efficiency of the space or the work place can be further improved.

(Modification of Embodiment 8)

The configuration described in the eighth embodiment may be implemented in combination with the configuration described in the first to seventh embodiments, or may be implemented independently of the configuration described in the first to seventh embodiments. In the case where the configuration described in the eighth embodiment is adopted, for example, it is not necessary to include a wind direction adjustment unit having a configuration as described in the first to seventh embodiments. The suction port 22H (see FIGS. 2 and 3) may not be formed on the side of the lower surface 22, and the suction port 22H may be formed on the side of the upper surface 21 and / or the side walls 25 and 26. The blowout openings are not limited to the configurations shown in the front upper blowout portion 28H (FIG. 9) and the front lower blowout portion 29H (FIG. 13). The blowout outlet may be formed on the lower surface 22 side, or may be formed on the upper surface 21 and / or Side of the side walls 25, 26.

When a suction port is provided in the side wall 25, an air filter can be arranged so that the suction port of the side wall 25 is covered from the inside of the cabinet 20, and an air cleaning filter can be arranged inside the air filter. When a suction port is provided in the side wall 26, an air filter can be arranged so as to cover the suction port of the side wall 26 from the inside of the cabinet 20, and an air cleaning filter can be arranged inside the air filter.

The air filter 31 may not be disposed above the suction port 22H. If the air filter 31 is arranged so as to cover the suction port 22H from the inside of the cabinet 20, the air filter 31 may be arranged below or to the side of the suction port 22H, for example. Similarly, the air cleaning filter 32 may not be disposed above the air filter 31. If the air cleaning filter 32 is disposed so as to cover the air filter 31 from the inside of the cabinet 20, the air cleaning filter 32 may be disposed on the air filter, for example. 31 or below. If the air blower 33 is arrange | positioned inside the cabinet 20, it is not limited to above the air purification filter 32, For example, it may be arrange | positioned below or to the side of the air purification filter 32.

Even if the air conditioner adopts the configuration of the modification of the eighth embodiment, the air conditioning can be performed with less energy consumption while always purifying the air, and the size can be reduced compared with the conventional one.

Although the embodiments have been described above, the above-mentioned disclosures are examples in every respect and are not restrictive. The technical scope of the present invention is expressed by the scope of patent application, and it is intended to include the meaning equivalent to the scope of patent application and all changes within the scope.

Claims (3)

An air conditioner is provided on an upper part of a side wall or a ceiling of a room, and is characterized by comprising a box body having an upper surface arranged to face the ceiling, a lower surface located on a floor surface side, a rear surface arranged on the side wall side, and The opposite side of the front side is the front side, the right side from the back side to the front side and the right side, and the left side from the back side to the front side and the left side; the blower is disposed inside the box; the heat exchanger is disposed on the blower. The front or upper front is connected to the outdoor heat exchanger; and the drain pan unit is arranged below the heat exchanger to receive the drainage dripping from the heat exchanger; if the height of the box is set to h [mm], If the width of the box is set to W [mm], then the relationship of W ≧ 4 × h is established. The drain pan unit includes a groove portion having a shape extending along the long side direction of the heat exchanger, and receiving Drainage from the heat exchanger; and a drainage piping portion having a first end portion and a second end portion, the first end portion is connected to the groove portion, and the second end portion is communicated with the outdoor to make the groove Ministry Drainage is discharged through the first end portion and the second end portion; a surface portion of the groove portion that is arranged to oppose the heat exchanger to receive drainage from the heat exchanger is presented in the box body A substantially V-shaped shape in which the height in the vertical direction is highest at both ends in the left-right direction, and the height in the vertical direction is the lowest in the left-right direction of the box near the center; The first end portion is connected to the groove portion at the position near the center in the left-right direction of the box; the blower includes a driving motor, a plurality of multi-wing centrifugal fans, and a rotating shaft; the plurality of multi-wing centrifugal fans Is connected to the driving motor through the rotating shaft, and is arranged in a horizontal direction so as to be coaxial with the driving motor; the blower further has a plurality of casings, and each of the casings is disposed to cover the casing Around each of the plurality of multi-wing centrifugal fans; the drainage pipe portion extends from the first end portion toward the back side at the near-central position in the left-right direction of the box, and the drainage pipe portion Portion between the first end and the second end portion disposed at a position lower than the plurality of housing cover, which does not pass through a plurality of shroud. For example, the air conditioner of the first scope of the patent application, wherein the heat exchanger includes: a left heat exchanger disposed on the left side of the inside of the box; and a right heat exchanger disposed on the box. The position on the right side of the inside; the left heat exchanger and the right heat exchanger are arranged side by side in the left-right direction, and the left heat exchanger is located on the right side of the left heat exchanger and has the same position as the outdoor heat exchanger The first refrigerant pipe piping part connected, the right heat exchanger is located on the left side of the right heat exchanger, and has a second refrigerant pipe piping part connected to the outdoor heat exchanger, and the first refrigerant pipe piping part and the The second refrigerant pipe piping portion meets or is bundled with each other at the position near the center in the left-right direction of the case and extends toward the back side. For example, the air conditioner of the second scope of the patent application, wherein the drainage piping part, the first refrigerant pipe piping part, and the second refrigerant pipe piping part are located at the position near the center in the left-right direction of the box. The bundles are bundled and extend toward the back side.