WO2019087421A1 - Unité intérieure pour climatiseur - Google Patents

Unité intérieure pour climatiseur Download PDF

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Publication number
WO2019087421A1
WO2019087421A1 PCT/JP2018/005801 JP2018005801W WO2019087421A1 WO 2019087421 A1 WO2019087421 A1 WO 2019087421A1 JP 2018005801 W JP2018005801 W JP 2018005801W WO 2019087421 A1 WO2019087421 A1 WO 2019087421A1
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WO
WIPO (PCT)
Prior art keywords
opening
motor
motor cover
indoor unit
air
Prior art date
Application number
PCT/JP2018/005801
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English (en)
Japanese (ja)
Inventor
政貴 川村
Original Assignee
シャープ株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to JP2019549814A priority Critical patent/JP6972160B2/ja
Priority to CN201880070562.XA priority patent/CN111279129B/zh
Publication of WO2019087421A1 publication Critical patent/WO2019087421A1/fr

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • the present invention relates to an indoor unit of an air conditioner provided with a centrifugal fan and a motor for driving the centrifugal fan.
  • the indoor unit of the air conditioner is internally provided with a blower as disclosed in, for example, Patent Document 1.
  • the indoor unit rotates the blower to blow out the air sucked from the suction port from the blowout port through the heat exchanger.
  • HEPA filter High Efficiency Particulate Air Filter
  • the HEPA filter has a large ventilation resistance, and when the HEPA filter is used for air cleaning, the volume of air blown out from the outlet is significantly reduced. Therefore, when using a HEPA filter for air cleaning, it is necessary to secure a sufficient air volume (a sufficient amount of air suction).
  • a cross flow fan called a cross flow fan is used as a blower.
  • a centrifugal fan called a sirocco fan
  • Patent Document 1 an indoor unit of an air conditioner in which two centrifugal fans respectively disposed in a casing are disposed in an axial direction, and a motor provided between two casings rotates the two centrifugal fans. Is disclosed.
  • Japanese Patent Publication Japanese Patent Application Laid-Open No. 6-42768 (published February 18, 1994)"
  • Patent Document 1 two casings are partitioned by a partition material, and the air taken in from the suction portion of each casing is accelerated by the rotation of the centrifugal fan and discharged from the discharge portion of each casing. Therefore, in the configuration of Patent Document 1, useless space exists above and below the motor.
  • An aspect of the present invention aims to provide an indoor unit of an air conditioner in which a space above or below a motor for driving a centrifugal fan can be used for suction of air of the centrifugal fan.
  • an indoor unit of an air conditioner concerning one mode of the present invention has a centrifugal fan arranged in multiple numbers in a horizontal direction in a case which has at least one suction opening which sucks in air, and the above
  • the motor cover has a drive shaft for driving to rotate the centrifugal fans on the left and right, and a motor disposed between the adjacent centrifugal fans, and a motor cover that covers a part of the outer peripheral surface of the motor.
  • a first air passage having at least one wall provided projecting toward the mouth, the wall forming an air passage connected to a side face in the axial direction of the drive shaft from a surface opposite to the suction opening An opening, and a second opening separated from the first opening and the partition wall and forming an air passage connected from the opposite surface to the suction port to the other side surface in the axial direction of the drive shaft;
  • an indoor unit of an air conditioner in which the space above or below the motor for driving the centrifugal fan can be used for suction of air of the centrifugal fan.
  • FIG. 1 It is a perspective view which shows the external appearance of the indoor unit of the air conditioner concerning Embodiment 1 of this invention. It is a longitudinal cross-sectional view of the indoor unit when the indoor unit of the air conditioner shown in FIG. 1 is seen from the side direction. It is a perspective view of the indoor unit of the air conditioner concerning Embodiment 1 of this invention in the state which assembled
  • FIG. 1 It is a longitudinal cross-sectional view of the principal part of a fan when the indoor unit of the air conditioner concerning Embodiment 1 of this invention is seen from a front direction.
  • A is a front view which shows the external appearance of the motor cover of the state which accommodated the motor main body concerning Embodiment 1 of this invention,
  • (b) accommodates the motor main body concerning Embodiment 1 of this invention It is a side view which shows the external appearance of the motor cover of the state which was carried out, and
  • (c) is a front view which shows the state which removed the upper motor cover from the motor cover which accommodated the motor main body concerning Embodiment 1 of this invention.
  • FIG. 1 is a figure which shows the external appearance of the motor cover of the state which accommodated the motor main body concerning Embodiment 1 of this invention, (a) is seeing the said motor cover from the end surface side of the right side (B) is a perspective view when the said motor cover is seen from the end surface side of the left side, (c) is a top view. It is a longitudinal cross-sectional view of the principal part of a fan when the indoor unit of the air conditioner concerning Embodiment 2 of this invention is seen from a front direction.
  • (A) * (b) is a figure which shows the external appearance of the motor cover of the state which accommodated the motor main body concerning Embodiment 2 of this invention, (a) is a front view, (b) is a side view It is. (A)-(c) is a figure which shows the external appearance of the motor cover of the state which accommodated the motor main body concerning Embodiment 2 of this invention, (a) is seeing the said motor cover from the end surface side of the right side (B) is a perspective view when the said motor cover is seen from the end surface side of the left side, (c) is a bottom view.
  • FIG. 7B is a perspective view when the motor cover is viewed from the left end face side.
  • FIG. 1 is a perspective view showing the appearance of the indoor unit 1 of the air conditioner according to the present embodiment.
  • FIG. 2 is a longitudinal sectional view of the indoor unit 1 when the indoor unit 1 of the air conditioner shown in FIG. 1 is viewed from the side direction.
  • FIG. 3 is a perspective view of the indoor unit 1 of the air conditioner according to the present embodiment in a state where the main members shown in FIG. 2 are assembled.
  • FIG. 4 is a perspective view showing the appearance of the cabinet 30 of the indoor unit body 2 according to the present embodiment.
  • the figure which shows the cross section of the up-down direction (normal line direction) of the indoor unit 1 is called a longitudinal cross-sectional view.
  • the indoor unit 1 of the air conditioner includes an indoor unit main body 2 and a baffle plate 3 provided on the front surface of the indoor unit main body 2.
  • the indoor unit body 2 includes a cabinet 30, a blower 13, a heat exchanger 14, and a drain pan 21.
  • a first suction port 11 is provided at the top of the indoor unit body 2.
  • a second suction port 12 is provided at the lower part of the indoor unit body 2.
  • a blowoff port 17 is provided at the front of the indoor unit body 2.
  • the indoor unit body 2 has a first filter 15 on the inner side (lower side) of the first suction port 11 and has a second filter 16 on the inner side (upper side) of the second suction port 12.
  • the first filter 15 is, for example, a filter having a function equivalent to a prefilter, is a filter that has lower performance than the second filter 16, and has a smaller ventilation resistance than the second filter 16.
  • the second filter 16 is, for example, a HEPA filter (High Efficiency Particulate Air Filter), which is a filter that has higher performance than the first filter 15 and has a larger ventilation resistance than the first filter 15.
  • the air sucked into the indoor unit 1 from the first suction port 11 passes through the first filter 15 and is then blown to the heat exchanger 14 by the blower fan 41 and blown out from the blowout port 17.
  • the air sucked into the indoor unit 1 from the second suction port 12 passes through the second filter 16 and is then blown to the heat exchanger 14 by the blower fan 41 and blown out from the blowout port 17.
  • the details of the blower 13 will be described later.
  • the first suction port 11 is provided with an open / close lid 18 for opening and closing the first suction port 11.
  • the open / close lid 18 is attached to the top of the cabinet 30.
  • the open / close lid 18 is opened when operating in the air conditioning mode.
  • the open / close lid 18 is closed when the air conditioner is in the stopped state or when the air conditioner is operated in the air cleaning mode.
  • the air conditioning mode is an operation mode of the air conditioner in which the air conditioning function is given priority over the air cleaning function.
  • the air purification mode is an operation mode of the air conditioner in which the air purification function is prioritized over the air conditioning function. In the air conditioning mode, air is drawn mainly from the first suction port 11. On the other hand, in the air cleaning mode, air is drawn only from the second suction port 12.
  • the air guide plate 3 is disposed such that the air (air flow) blown out from the outlet 17 is directed obliquely upward in the cooling operation and obliquely downward in the heating operation.
  • the cabinet 30 has an upper surface portion 31, a back surface portion 32 and a lower surface portion 33.
  • the upper surface portion 31 is provided with a first suction port 11.
  • the lower surface portion 33 is provided with a second suction port 12.
  • the cabinet 30 supports the blower 13, the heat exchanger 14, and the drain pan 21.
  • the cabinet 30 is a part of a housing, and the blower 13 is provided inside the cabinet 30.
  • the baffle plate 3, the heat exchanger 14, and the drain pan 21 are assembled to the cabinet 30.
  • the heat exchanger 14 has a V-shape in which two heat exchangers are connected vertically and the connecting portion protrudes forward, and is disposed in front of the blower 13 (on the front side of the indoor unit 1 relative to the blower 13) ing.
  • a drain pipe 22 is connected to the drain pan 21. Water generated by the heat exchanger 14 is received by the drain pan 21 and discharged from the air conditioner through the drain pipe 22.
  • FIG. 5 is a front view of the main part of the blower 13 according to the present embodiment disposed in the cabinet 30.
  • FIG. 6 is a longitudinal cross-sectional view of the main parts of the blower 13 when the indoor unit 1 of the air conditioner according to the present embodiment is viewed from the front direction.
  • FIG. 7A is a front view showing the appearance of the motor cover 50 in a state in which the motor main body 52 is accommodated according to the present embodiment
  • FIG. 7B is a motor main body according to the present embodiment.
  • FIG. 7C is a side view showing the appearance of the motor cover 50 in a state in which the motor housing 52 is housed
  • FIG. 7C is a state in which the upper motor cover 70 is removed from the motor cover 50 housing the motor main body 52 according to the present embodiment. It is a front view showing. (A) to (c) of FIG. 8 is a view showing an appearance of the motor cover 50 in a state in which the motor main body 52 is accommodated according to the present embodiment, and (a) of FIG. It is a perspective view when it sees from the end face side of the right side, and (b) of Drawing 8 is a perspective view when seeing the above-mentioned motor cover 50 from the end face side of the left side.
  • FIG. 6 shows a longitudinal cross-sectional view of the main part of the blower 13 when the blower 13 is cut in the longitudinal direction at the position of the first opening 74 of the motor cover 50.
  • the blower 13 includes two blower fans 41, two fan casings 47 (see FIG. 2) not shown, a fan motor 51 (motor), and a motor cover 50. ing.
  • the two blower fans 41 are arranged in the cabinet 30 in the lateral direction along the longitudinal direction of the indoor unit 1. As shown in FIG. 2, each fan casing 47 covers a part of the outer peripheral surface of each blower fan 41. As shown in FIGS. 3, 4 and 5 (a) to (c) and 6 (a) to (c), the motor cover 50 covers a part of the outer peripheral surface of the fan motor 51. There is.
  • blower fan 41 on the left side of the fan motor 51 is referred to as the first blower fan 41a
  • the blower fan 41 on the right side of the fan motor 51 is the second blower fan 41b. It is called.
  • the first blower fan 41a and the second blower fan 41b are simply referred to as the blower fan 41, respectively.
  • the fan motor 51 and the two blower fans 41 are connected in series along the longitudinal direction of the indoor unit 1 and arranged.
  • the fan motor 51 is a double-axis motor having drive shafts 53 on the left and right end faces of a cylindrical motor body 52.
  • the fan motor 51 is disposed between the blower fans 41 adjacent to the left and right, and transmits rotational power to the blower fans 41 via the drive shaft 53 to rotationally drive the blower fans 41.
  • the heat exchanger 14 is disposed in front of the blower 13 so as to straddle the two blower fans 41.
  • the blower fan 41 is a sirocco fan (centrifugal fan) having a configuration in which two multi-blade rotors 42 (impellers) are connected by the disk surfaces 42 a of each other.
  • a sirocco fan centrifugal fan
  • the blower fan 41 has openings 44 on both side surfaces in the axial direction.
  • the blower fan 41 sucks air from the opening 44 in the direction parallel to the drive shaft 53 in the multi-blade rotor 42 by rotation of the multi-blade rotor 42 in a predetermined direction, and the outer peripheral surface of the multi-blade rotor 42 (that is, , Air from the opening 45 of the rotational surface).
  • openings 48 are formed in the fan casing 47 at positions facing the openings 44 of the blower fan 41.
  • Each blower fan 41 has a rotation shaft 43 at the center, and the positions of the rotation shafts 43 of the blower fans 41 adjacent to each other coincide in the vertical direction.
  • each blower fan 41 is provided with a boss 46 for fixing the drive shaft 53 of the fan motor 51.
  • the boss 46 is formed of, for example, a hollow straight pipe made of aluminum.
  • the bosses 46 are formed to partially project from the openings 44 in each multi-blade rotor 42. That is, the boss 46 is formed so as to project outside from the air intake side opening 44 that sucks in air when the multi-blade rotor 42 rotates.
  • the drive shafts 53 and the rotation shafts 43 are respectively inserted into the bosses 46 of the left and right blower fans 41.
  • Each drive shaft 53 and each rotation shaft 43 are fixed to each boss 46 by, for example, a screw (not shown).
  • the rotary shaft 43 of each blower fan 41 is connected to the drive shaft 53 of each fan motor 51.
  • the drive shafts 53 of the fan motor 51 rotatably support the left and right blower fans 41 via the bosses 46.
  • the two blower fans 41 are driven by one fan motor 51 to rotate.
  • a disk-shaped anti-vibration rubber 54 is provided around the drive shafts 53 protruding from both left and right end surfaces of the motor main body 52 as a vibration-proof material for preventing transmission of the vibration of the fan motor 51.
  • the motor cover 50 is configured of a lower motor cover 60 and an upper motor cover 70.
  • the lower motor cover 60 is a cover body that covers a part of the lower half of the motor main body 52.
  • the upper motor cover 70 is a cover body that covers a part of the upper half of the motor main body 52.
  • Lower motor cover 60 includes a semi-cylindrical motor housing portion 61 for housing motor body 52 therein, a connecting portion 62 for connecting lower motor cover 60 and upper motor cover 70, and a fixing member 67 described later. And.
  • Upper motor cover 70 includes a semi-cylindrical motor housing 71 for housing motor body 52 therein, a connector 72 connecting lower motor cover 60 and upper motor cover 70, and an upper surface of motor housing 71. And a fixing member 77, 78 described later.
  • the wall body 73 is provided on the upper surface of the motor housing portion 71 so as to project upward toward the first suction port 11 in a direction perpendicular to the drive shaft 53.
  • the lower motor cover 60 and the upper motor cover 70 are connected, for example, by screws (not shown).
  • the lower motor cover 60 has, for example, a fringe portion having a screw hole (not shown) protruding horizontally from the motor housing portion 61 as the connection portion 62.
  • the upper motor cover 70 has, as the connecting portion 72, for example, a cylindrical portion 62a provided with a screw groove coupled to a screw thread, and has a fringe portion projecting horizontally from the motor housing portion 71.
  • a connecting portion (not shown) for connecting the lower motor cover 60 and the upper motor cover 70 is also provided on the back side of the lower motor cover 60 and the upper motor cover 70.
  • the motor housing portion 61 has a semicylindrical concave portion 61 a for housing the motor main body 52 therein.
  • the motor housing portion 71 of the upper motor cover 70 has a semi-cylindrical concave portion 71 a for housing the motor main body 52 therein.
  • the lower motor cover 60 and the upper motor cover 70 are formed of, for example, a resin.
  • semicircular arc shaped notches in which the anti-vibration rubbers 54 of the fan motor 51 are fitted on both end surfaces of the motor housing 61
  • the portion 61 b is formed.
  • the notch 61 b is cut out in accordance with the shape of the lower half of the outer periphery of the vibration-proof rubber 54.
  • semicircular arc-shaped cutouts 71b into which the left and right vibration isolation rubbers 54 of the fan motor 51 are fitted are formed on both end surfaces of the motor housing portion 71.
  • the cutout portion 71 b is cut out in accordance with the shape of the upper half of the outer periphery of the vibration-proof rubber 54.
  • the notch portions 61b and 71b become circular holes having substantially the same size as the vibration-proof rubber 54.
  • the motor cover 50 supports the fan motor 51 by sandwiching the left and right anti-vibration rubbers 54 of the fan motor 51 in the vertical direction by the upper motor cover 70 and the lower motor cover 60.
  • the fan motor 51 is in contact with the motor cover 50 only with the left and right anti-vibration rubbers 54.
  • the drive shaft 53 of the fan motor 51 is pulled out of the motor cover 50 through the notches 61 b and 71 b.
  • a band-like opening 71 c is provided in the center of the upper surface of the motor housing 71 along the direction orthogonal to the drive shaft 53. . For this reason, a part of the top surface of the motor main body 52 is exposed from the opening 71 c.
  • a belt-like opening (not shown) is also provided at the center of the lower surface of the motor housing 61 along the direction orthogonal to the drive shaft 53. A portion of the lower surface of the motor main body 52 is exposed from an opening (not shown) provided at the center of the lower surface of the motor housing 61.
  • the wall body 73 separates the flow of air sucked into the cabinet 30 from the first suction port 11 into a flow toward one of the adjacent blower fans 41 and a flow toward the other and separates the flows into the respective blower fans 41 It acts as a wall and a guiding wall.
  • the wall 73 also functions as a fixing member for fixing the motor cover 50 and the cabinet 30.
  • the wall 73 has a first opening in which a part of the right side on the near side is cut in the vertical direction with the central portion in the depth direction in the depth direction when the motor cover 50 is viewed from the front. 74 and a second opening 75 in which a part of the left side surface on the back side is cut away in the vertical direction.
  • the depth direction when the motor cover 50 is viewed from the front indicates the direction from the front side to the back side of the indoor unit 1.
  • the first opening 74 and the second opening 75 are separated by the partition wall 73 a.
  • the partition wall 73a straddles the opening 71c along the drive shaft 53 so as to be positioned on a straight line with the drive shaft 53 in a plan view. Therefore, the first opening 74 is located on the front side of the indoor unit 1 with respect to the second opening 75, with the partition wall 73a interposed therebetween.
  • the second opening 75 is located on the back side of the indoor unit 1 with respect to the first opening 74 with the partition wall 73 a interposed therebetween.
  • the first opening 74 has a frame shape (in other words, a groove shape) in which a part of the right side surface is opened with the partition wall 73a as a wall portion on the back side in plan view.
  • the second opening 75 has a frame shape (in other words, a groove shape) in which a part of the left side surface is opened with the partition wall 73a as a front wall portion in plan view. For this reason, the wall body 73 has a substantially reverse S-shape in plan view.
  • one opening 44 side of the second blower fan 41 b disposed on the right side of the drive shaft 53 is opened in the axial direction of the drive shaft 53.
  • one opening 44 side of the first blower fan 41a disposed on the left side of the drive shaft 53 is opened in the axial direction of the drive shaft 53.
  • the first opening 74 and the second opening 75 face the opening 44 of the adjacent blower fan 41 in the axial direction of the drive shaft 53.
  • first opening 74 and the second opening 75 are provided to face the first suction port 11 of the indoor unit body 2 in the vertical direction. That is, the upper surfaces (that is, the upper open end surfaces) of the first opening 74 and the second opening 75 are provided to face the first suction port 11 of the indoor unit body 2 respectively.
  • the opening end faces on the first suction port 11 side which are the upper surfaces of the first opening 74 and the second opening 75, respectively function as air intakes. Further, the open end surfaces of the first opening 74 and the second opening 75 on the opening 44 side of the blower fans 41 function as air outlets.
  • the first opening 74 forms a first air passage connecting the upper surface of the wall 73 (that is, the surface facing the first suction port 11) to the right surface.
  • an air intake is formed on the opposite surface to the first suction port 11, and on the air intake port (opening 44) side of the one blower fan 41, the air outlet Form a first air passage.
  • the second opening 75 forms a second air passage connecting the top surface of the wall 73 to the left side surface.
  • an air intake is formed on the surface opposite to the first suction port 11, and the air intake (opening 44) side of the other blower fan 41 is the air outlet.
  • the first blower fan 41a can suction the air taken into the indoor unit body 2 from the first suction port 11 through the second opening 75 on the back side of the partition wall 73a.
  • the second blower fan 41b can suction the air taken into the indoor unit main body 2 from the first suction port 11 through the first opening 74 on the front side of the partition wall 73a.
  • a part of the air sucked into the indoor unit body 2 flows into the motor cover 50 from the first opening 74 and the second opening 75 provided in the motor cover 50, and the inside of the first opening 74
  • the air is drawn into the blower fan 41 from the opening 44 in the direction parallel to the drive shaft 53 through the second opening 75.
  • the motor main body 52 is cooled by the air flowing from the first opening 74 and the second opening 75 into the motor cover 50 through the opening 71 c.
  • the air sucked into the fan casing 47 is blown out from the opening 45 of the outer peripheral surface of the multi-blade rotor 42 constituting the blower fan 41.
  • the motor housing 71 and the wall 73 face the rear surface 32 on the surface facing the rear surface 32 of the cabinet 30.
  • the fixing member 77 which fixes the motor cover 50 to each is provided.
  • the fixing member 77 may be a screwing member for screwing the motor cover 50 to the back surface portion 32 of the cabinet 30, or may be a hook-like hooking member.
  • FIG. 7B and 8A and 8B illustrate the case where the fixing member 77 is provided on the rear surface of the upper motor cover 70 as described above. .
  • the fixing member 77 may be provided on the back surface of the lower motor cover 60.
  • a fixing member 78 for fixing the motor cover 50 to the upper surface portion 31 of the cabinet 30 is provided on the upper surface of the wall body 73.
  • a fixing member 67 for fixing the motor cover 50 to the lower surface 33 of the cabinet 30 is provided on the lower surface of the lower motor cover 60 (that is, the lower surface of the motor housing 71).
  • illustration of the fixing members 67, 77, and 78 is omitted.
  • the fixing member 78 may be a hanging member for suspending the motor cover 50 from the upper surface portion 31 of the cabinet 30, and is a screwing member for screwing the motor cover 50 to the upper surface portion 31 of the cabinet 30. May be
  • the fixing member 67 may be a screwing member for screwing the motor cover 50 to the lower surface portion 33 of the cabinet 30, and the motor cover 50 is fitted to a part of the lower surface portion 33 of the cabinet 30. It may be a fitting member.
  • the type and number of the fixing members 67, 77, 78 and the method of fixing the motor cover 50 and the cabinet 30 are not particularly limited.
  • the upper portion of the motor cover 50 is in contact with the upper surface portion 31, the lower portion is in contact with the lower surface portion 33, and the rear surface (rear portion) is in contact with the rear surface portion 32 by the fixing members 67, 77, 78.
  • the space above the fan motor 51 can be used for suction of air of the blower fan 41 by the motor cover 50 having the wall body 73. Therefore, the air volume of the air sucked into the blower fan 41 and the air blown out from the outlet 17 through the blower fan 41 can be increased, and the upper portion of the fan motor 51 can be effectively used.
  • the wall body 73 having the first opening 74 and the second opening 75 is not provided on the motor cover 50, the space above the fan motor 51 is a wasteful space.
  • the first opening 74 and the second opening 75 are separated by the partition wall 73a, so that the indoor unit main body from the first suction port 11 at the top of the motor cover 50.
  • the air drawn into the part 2 can be uniformly and efficiently introduced to the first and second blower fans 41a and 41b.
  • the air drawn into the indoor unit body 2 from the first suction port 11 at the top of the motor cover 50 is a first blower fan. Suction is performed from both 41a and the 2nd ventilation fan 41b.
  • the air sucked by the first blower fan 41a collides with the air sucked by the second blower fan 41b, and the respective air is not smoothly sucked by the first blower fan 41a and the second blower fan 41b.
  • the collided air serves as a resistance, the power input value for obtaining the same air volume is increased as compared with the case where the first opening 74 and the second opening 75 are separated by the partition wall 73a.
  • the air sucked by the first blower fan 41a and the air sucked by the second blower fan 41b collide with each other, so that the air amount sucked by the first blower fan 41a and the air amount sucked by the second blower fan 41b
  • the balance with the air volume is broken.
  • the balance of the amount of air drawn by the left and right blower fans 41 is broken, only the portion of the heat exchanger 14 disposed on the front surface of one of the blower fans 41 tends to dry.
  • the refrigerant is flowing on the premise that the wind uniformly strikes. For this reason, when only the portion of the heat exchanger 14 disposed on the front surface of one of the blower fans 41 dries quickly, the capacity of the heat exchanger 14 decreases and air passes through the dried portion, Condensation may occur at the outlet 17.
  • the air volume is used as a reference, as compared with the case where the first opening 74 and the second opening 75 are not separated by the partition wall 73a.
  • Power input values can be reduced. Therefore, power consumption can be reduced as compared with the case where the first opening 74 and the second opening 75 are not separated by the partition wall 73a.
  • the motor cover 50 is provided with the wall 73, and the wall 73 is provided with fixing members 77 and 78 for fixing the motor cover 50 to the cabinet 30, thereby enhancing the strength of the motor cover 50. And motor cover 50 and cabinet 30 can be fixed firmly.
  • the wall body 73 an opening in which a part of the left side surface in front of the drive shaft 53 is cut in the vertical direction, and a part of the right side surface in the rear of the drive shaft 53 is cut in the vertical direction
  • An integral opening may be provided.
  • the wall 73 has a frame-shaped (groove-shaped) opening (a notch) in which a part of the left side surface is opened with the partition 73a as the back wall in plan view in the depth direction
  • a frame-shaped (groove-shaped) opening (notch) may be provided in which a part of the right side surface is opened with the partition wall 73a as a wall on the front side in plan view. That is, the wall body 73 may have a substantially S-shape in plan view.
  • At least one opening (for example, the first opening 74) forming the first air passage and at least one opening (for example, the second opening 75) for forming the second air passage may be provided.
  • the opening (for example, the first opening 74) forming the first air passage and the opening (for example, the second opening 75) forming the second air passage are viewed in plan.
  • the case where they are provided side by side in the direction orthogonal to the drive shaft 53 has been described as an example.
  • these openings may be provided side by side in the axial direction of the drive shaft 53 with the partition wall orthogonal to the drive shaft 53 interposed therebetween.
  • the wall 73 is an I-shaped (in other words, a horizontally oriented H-shaped) wall in plan view having two openings on the left and right separated by the partition 73a orthogonal to the drive shaft 53 Good.
  • the opening (for example, the first opening 74) forming the first air passage and the opening (for example, the second opening 75) forming the second air passage are wall bodies 73.
  • the case where it is a notch (in other words, a groove) notched like a groove from the upper surface (the surface facing the first suction port 11) to the left side or right side of the wall 73 has been described as an example .
  • these openings are not limited to the above shape, and are, for example, through holes penetrating the wall 73 in a tunnel shape from the upper surface of the wall 73 to the left side surface or the right side surface of the wall 73 I don't care.
  • FIG. 9 is a longitudinal cross-sectional view of the main parts of the blower 13 when the indoor unit 1 of the air conditioner according to the present embodiment is viewed from the front direction.
  • 10A and 10B are views showing the appearance of the motor cover 50 in a state in which the motor main body 52 is accommodated according to the present embodiment, and FIG. 10A is a front view, 10 (b) is a side view.
  • (A) to (c) of FIG. 11 are views showing the appearance of the motor cover 50 in a state in which the motor main body 52 is accommodated according to the present embodiment, and (a) of FIG. It is a perspective view when it sees from the end surface side of the right side, (b) of FIG.
  • FIG. 11 is a perspective view when the said motor cover 50 is seen from the end surface side of the left side, (c) of FIG.
  • FIG. 9 is a longitudinal cross-sectional view of the main part of the blower 13 when the blower 13 is cut in the longitudinal direction at the position of the first opening 64 of the motor cover 50. In FIG. 9, the fan casing 47 is not shown.
  • the indoor unit 1 of the air conditioner according to the present embodiment is the same as the air conditioner according to the first embodiment except for the shape of the motor cover 50. It has the same configuration as the indoor unit 1.
  • the motor cover 50 according to the present embodiment has a shape in which the lower motor cover 60 and the upper motor cover 70 according to the first embodiment are upside down except for the shapes of the fixing members 77, 78, and 67.
  • the wall body 73 is not provided on the upper motor cover 70, and instead, the wall body 63 is provided on the lower motor cover 60. That is, the upper motor cover 70 according to the present embodiment includes the motor housing portion 71, the connecting portion 72, and the fixing members 77 and 78.
  • the lower motor cover 60 includes a motor housing portion 61, a connection portion 62, a wall 63, and a fixing member (not shown).
  • a fixing member not shown in (a) and (b) of FIG. 10 and (a) to (c) of FIG. 11, the fixing members 77 and 78 and the fixing member on the lower motor cover 60 side are not shown.
  • the motor housing 71 according to the present embodiment has the same shape as the motor housing 61 according to the first embodiment.
  • the motor housing 61 according to the present embodiment has the same shape as the motor housing 71 according to the first embodiment.
  • the configuration of the motor housings 61 and 71 is the same as the configuration of the motor housings 61 and 71 according to the first embodiment.
  • an opening 61c is provided in a strip shape along the direction orthogonal to the drive shaft 53. Therefore, part of the lower surface of the motor main body 52 is exposed from the opening 61 c.
  • a belt-like opening 71 c is provided at the center of the upper surface of the motor housing 61 along the direction orthogonal to the drive shaft 53. It is done. A part of the upper surface of the motor main body 52 is exposed from the opening 71 c.
  • the connecting portion 72 according to the present embodiment has the same shape as the connecting portion 62 according to the first embodiment.
  • the connecting portion 62 according to the present embodiment has the same shape as the connecting portion 72 according to the first embodiment.
  • the upper motor cover 70 has, as the connecting portion 72, for example, a fringe portion that protrudes horizontally from the motor housing portion 71 and has a screw hole (not shown).
  • the lower motor cover 60 has, as the connecting portion 62, for example, a cylindrical portion 62a provided with a screw groove coupled to a screw thread, and has a fringe portion projecting horizontally from the motor housing portion 61.
  • the connecting portions 62 and 72 may have the same shape as the first embodiment.
  • the wall 63 has the same shape as the wall 73 according to the first embodiment.
  • the wall body 63 is provided on the lower surface of the motor housing portion 61 so as to project downward toward the second suction port 12 in a direction perpendicular to the drive shaft 53.
  • the wall body 63 separates the flow of air sucked into the cabinet 30 from the second suction port 12 into a flow toward one of the adjacent blower fans 41 and a flow toward the other and separates the flows into the respective blower fans 41 It acts as a wall and a guiding wall.
  • the wall body 63 functions as a fixing member for fixing the motor cover 50 and the cabinet 30.
  • the first opening 64 and the second opening 65 are separated by the partition wall 63a.
  • the partition wall 63a straddles the opening 61c along the drive shaft 53 so as to be positioned on a straight line with the drive shaft 53 in a plan view. Therefore, the first opening 64 is located on the front side of the indoor unit 1 with respect to the second opening 65, with the partition wall 63a interposed therebetween.
  • the second opening 65 is located on the back side of the indoor unit 1 with respect to the first opening 64 with the partition wall 63 a interposed therebetween.
  • the first opening 64 has a frame shape (in other words, a groove shape) in which a part of the right side surface is opened with the partition wall 63a as a wall portion on the back side in plan view.
  • the second opening 65 has a frame shape (in other words, a groove shape) in which a part of the left side surface is opened with the partition wall 63a as a wall on the front side in plan view. For this reason, the wall body 63 has a substantially reverse S-shape in plan view.
  • one opening 44 side of the second blower fan 41 b disposed on the right side of the drive shaft 53 is opened in the axial direction of the drive shaft 53.
  • one opening 44 side of the first blower fan 41a disposed on the left side of the drive shaft 53 is opened in the axial direction of the drive shaft 53.
  • the first opening 64 and the second opening 65 face the opening 44 of the adjacent blower fan 41 in the axial direction of the drive shaft 53.
  • the first opening 64 and the second opening 65 are provided to face the second suction port 12 of the indoor unit body 2 in the vertical direction. That is, the lower surfaces (that is, lower open end surfaces) of the first opening 64 and the second opening 65 are provided so as to face the second suction port 12 of the indoor unit body 2 respectively.
  • the open end surfaces on the second suction port 12 side which are the lower surfaces of the first opening 64 and the second opening 65, respectively function as air intake ports. Further, the open end surfaces of the first opening 64 and the second opening 65 on the opening 44 side of the blower fans 41 function as air outlets.
  • the first opening 64 forms a first air passage connecting the lower surface of the wall 63 (that is, the surface facing the second suction port 12) to the right side.
  • an air intake is formed on the opposite surface to the second suction opening 12, and the air extraction opening on the air intake (opening 44) side of the one blower fan 41 Form a first air passage.
  • the second opening 65 forms a second air passage connecting the lower surface of the wall body 63 to the left side surface.
  • an air intake is formed on the opposite surface to the second suction port 12, and the air outlet is formed on the air intake (opening 44) side of the other blower fan 41.
  • the first blower fan 41a can suction the air taken into the indoor unit body 2 from the second suction port 12 through the second opening 65 on the back side of the partition wall 63a.
  • the second blower fan 41b can suction the air taken into the indoor unit main body 2 from the second suction port 12 through the first opening 64 on the front side of the partition wall 63a.
  • a part of the air sucked into the indoor unit body 2 flows into the motor cover 50 from the first opening 64 and the second opening 65 provided in the motor cover 50, and the inside of the first opening 64
  • the air is drawn into the blower fan 41 from the opening 44 in the direction parallel to the drive shaft 53 through the second opening 65.
  • the motor main body 52 is cooled by the air flowing from the first opening 64 and the second opening 65 into the motor cover 50 through the opening 61 c.
  • the air sucked into the fan casing 47 is blown out from the opening 45 of the outer peripheral surface of the multi-blade rotor 42 constituting the blower fan 41.
  • Fixing members for fixing the motor cover 50 to the cabinet 30 are provided on the back and lower surfaces of the lower motor cover 60 and the back and upper surfaces of the upper motor cover 70, respectively.
  • fixing members for example, fixing members similar to the fixing members 67, 77, 78 can be used.
  • the types and the number of the fixing members, and the fixing method of the motor cover 50 and the cabinet 30 are not particularly limited.
  • the motor cover 50 is provided with the wall 63 instead of the wall 73 according to the first embodiment, so that the space above the fan motor 51 is replaced by a fan
  • the space under the motor 51 can be used for suction of air from the blower fan 41. According to the present embodiment, except for this point, the same effect as that of the first embodiment can be obtained.
  • FIG. 12 is a longitudinal cross-sectional view of the main part of the blower 13 when the indoor unit 1 of the air conditioner according to the present embodiment is viewed from the front direction.
  • (A) and (b) of FIG. 13 are views showing the appearance of the motor cover 50 in a state in which the motor main body 52 is accommodated according to the present embodiment, and (a) of FIG. 13 (b) is a side view.
  • (A) and (b) of FIG. 14 are views showing the appearance of the motor cover 50 in a state in which the motor main body 52 is accommodated according to the present embodiment, and (a) of FIG. It is a perspective view when it sees from the end surface side of the right side, (b) of FIG.
  • FIG. 14 is a perspective view when the said motor cover 50 is seen from the end surface side of the left side. 12 shows a longitudinal cross-sectional view of the main part of the blower 13 when the blower 13 is cut in the longitudinal direction at the positions of the first openings 64 and 74 of the motor cover 50. In FIG. 12, the fan casing 47 is not shown.
  • the indoor unit 1 of the air conditioner according to the present embodiment is the same as the first embodiment except for the shape of the lower motor cover 60 in the motor cover 50. It has the same configuration as the indoor unit 1 of the air conditioner.
  • the upper motor cover 70 according to the present embodiment includes a motor accommodating portion 71, a connecting portion 72, a wall 73, and fixing members 77 and 78.
  • the lower motor cover 60 according to the present embodiment includes a motor housing portion 61, a connection portion 62, a wall 63, and a fixing member (not shown) which will be described later.
  • the upper motor cover 70 according to the present embodiment has the same shape as the upper motor cover 70 according to the first embodiment.
  • the lower motor cover 60 according to the present embodiment has the same shape as the lower motor cover 60 according to the second embodiment except for the shape of the connecting portion 62. Therefore, the motor accommodating portion 71 and the wall 73, and the motor accommodating portion 61 and the wall 63 according to the present embodiment are plane symmetric with respect to the boundary surface (contact surface) between the motor accommodating portion 71 and the motor accommodating portion 61. Is formed.
  • the top view of the motor cover 50 in the state in which the motor main body 52 is accommodated according to the present embodiment is the same as (c) of FIG. 8 and the motor main body 52 according to the present embodiment.
  • the bottom view of the motor cover 50 in the state of containing the same is the same as (c) of FIG.
  • the connecting portion 72 according to the present embodiment has the same shape as the connecting portion 72 according to the first embodiment.
  • the case where the connection part 62 concerning embodiment has the same shape as the connection part 62 concerning Embodiment 1 is mentioned as the example, and is shown in figure.
  • the present embodiment is not limited to this, and the connecting portion 72 according to the present embodiment has the same shape as the connecting portion 62 according to the first embodiment, and the connecting portion 62 according to the present embodiment is implemented. It may have the same shape as the connecting portion 72 according to the first embodiment.
  • the lower motor cover 60 has the same shape as the lower motor cover 60 according to the second embodiment, and the upper motor cover 70 excludes the shape of the connecting portion 72.
  • the upper motor cover 70 may have the same shape as that of the upper motor cover 70.
  • fixing members for fixing the motor cover 50 to the cabinet 30 are provided on the back surface and the bottom surface of the lower motor cover 60 also in the present embodiment.
  • fixing members for example, fixing members similar to the fixing members 67, 77, 78 can be used.
  • the types and the number of the fixing members, and the fixing method of the motor cover 50 and the cabinet 30 are not particularly limited.
  • a plurality of indoor units 1 of the air conditioner according to aspect 1 of the present invention are arrayed in the left-right direction in a housing (cabinet 30) having at least one suction port (first suction port 11.12) for sucking in air.
  • Centrifugal fan Blowing fan 41
  • drive shaft 53 for rotating the centrifugal fan on the left and right
  • motor fan motor 51
  • the motor cover 50 has at least one wall (walls 63 and 73) provided to project toward the suction port, and the wall is the motor cover 50.
  • the first opening is one of the axial directions of the drive shaft 53 from the surface facing the suction port in the wall.
  • the second opening is a notch cut from the surface of the wall facing the suction port to the other side of the drive shaft 53 in the axial direction.
  • the first opening and the second opening are provided side by side in the direction orthogonal to the drive shaft 53. May be
  • the first opening portion is forward of the drive shaft 53 in the depth direction when the motor cover 50 is viewed from the front.
  • At least one of the second openings may be formed at the rear of the drive shaft 53 in the depth direction when the motor cover 50 is viewed from the front.
  • the suction port is formed in at least one of the upper surface portion 31 and the lower surface portion 33 of the housing.
  • the wall may be formed on at least one of the upper and lower portions of the motor cover 50.
  • the suction port is formed in the upper surface portion 31 and the lower surface portion 33 of the housing,
  • the wall may be formed on the upper and lower portions of the motor cover 50, respectively.
  • the indoor unit 1 of the air conditioner according to aspect 7 of the present invention is the fixing member (fixing members 77 and 78) for fixing the motor cover 50 to the casing on the wall in any one of the above aspects 1 to 6. ) May be provided.
  • the motor is provided with an anti-vibration material (anti-vibration rubber 54) around the drive shaft 53;
  • the motor cover 50 includes an upper motor cover 70 covering a portion of the upper half of the motor, and a lower motor cover 60 covering a portion of the lower half of the motor, the upper motor cover 70 and the lower motor cover
  • the motor may be supported in a state of being in contact with only the vibration-proof material by sandwiching the vibration-proof material with 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

L'invention concerne une unité intérieure (1) comprenant un couvercle de moteur (50) qui a, séparé par une cloison (63a, 73a), une première ouverture (64, 74) formant un canal d'air reliant une face opposée à une entrée à une face latérale, dans la direction axiale, d'un arbre d'entraînement (53) de moteur de ventilateur (51), et une seconde ouverture (65, 75) formant un canal d'air reliant la face opposée à l'entrée à l'autre face latérale, dans la direction axiale, de l'arbre d'entraînement (53).
PCT/JP2018/005801 2017-11-02 2018-02-19 Unité intérieure pour climatiseur WO2019087421A1 (fr)

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JP2019549814A JP6972160B2 (ja) 2017-11-02 2018-02-19 空気調和機の室内機
CN201880070562.XA CN111279129B (zh) 2017-11-02 2018-02-19 空调的室内机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017213174 2017-11-02
JP2017-213174 2017-11-02

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WO2019087421A1 true WO2019087421A1 (fr) 2019-05-09

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JP2021018025A (ja) * 2019-07-19 2021-02-15 シャープ株式会社 送風装置、空気調和機の室内機
JP2021018026A (ja) * 2019-07-19 2021-02-15 シャープ株式会社 送風装置、空気調和機の室内機

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JPH1163548A (ja) * 1997-08-20 1999-03-05 Fujitsu General Ltd 空気調和機
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Publication number Priority date Publication date Assignee Title
JP2021018025A (ja) * 2019-07-19 2021-02-15 シャープ株式会社 送風装置、空気調和機の室内機
JP2021018026A (ja) * 2019-07-19 2021-02-15 シャープ株式会社 送風装置、空気調和機の室内機
JP7250638B2 (ja) 2019-07-19 2023-04-03 シャープ株式会社 送風装置、空気調和機の室内機
JP7347982B2 (ja) 2019-07-19 2023-09-20 シャープ株式会社 送風装置、空気調和機の室内機

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JPWO2019087421A1 (ja) 2020-11-12
JP6972160B2 (ja) 2021-11-24
CN111279129B (zh) 2021-08-24

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