WO2018154765A1 - 天井パネルおよび空気調和機 - Google Patents

天井パネルおよび空気調和機 Download PDF

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Publication number
WO2018154765A1
WO2018154765A1 PCT/JP2017/007402 JP2017007402W WO2018154765A1 WO 2018154765 A1 WO2018154765 A1 WO 2018154765A1 JP 2017007402 W JP2017007402 W JP 2017007402W WO 2018154765 A1 WO2018154765 A1 WO 2018154765A1
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WO
WIPO (PCT)
Prior art keywords
corner
cover
screw
outer peripheral
fixing
Prior art date
Application number
PCT/JP2017/007402
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
伸哲 吉武
貴志 平岡
我科　賢二
Original Assignee
東芝キヤリア株式会社
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 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to EP17897295.6A priority Critical patent/EP3587952B1/de
Priority to PCT/JP2017/007402 priority patent/WO2018154765A1/ja
Priority to JP2019500992A priority patent/JP6772361B2/ja
Publication of WO2018154765A1 publication Critical patent/WO2018154765A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • 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

  • Embodiments of the present invention relate to a ceiling panel used in an air conditioner and a ceiling embedded air conditioner.
  • the ceiling-embedded air conditioner has a ceiling panel that covers the lower end of the indoor unit installed behind the ceiling.
  • the ceiling panel has a square frame, and the four corners of the frame are fixed to the lower end of the indoor unit via panel fixing screws and fixing brackets, respectively.
  • the corners of the frame are covered with removable corner covers.
  • the corner cover is fixed to the corner portion with screws after the operator manually adjusts the posture of the corner cover so that the position with respect to the corner portion is appropriate.
  • An object of the present invention is to obtain a ceiling panel that can easily fix a corner cover to a regular position of a corner portion, has a good appearance, and is excellent in workability.
  • the ceiling panel includes a frame body having a plurality of corner portions, and a plurality of corner covers that detachably cover the corner portions of the frame body.
  • Each corner portion defines an outer periphery of the frame body and has an outer peripheral portion having a plurality of engagement holes, a screw receiving portion positioned inside the outer peripheral portion, and a cover screwed into the screw receiving portion.
  • Each corner cover includes a plurality of engaging claws that are removably hooked in the engaging hole, and a screw fixing portion that protrudes toward the screw receiving portion.
  • the screw fixing portion includes a guide groove that passes through a shaft portion of the cover fixing screw and is opened at a tip of the screw fixing portion, and a guide wall portion that protrudes from the screw fixing portion so as to surround the guide groove. ,including.
  • the guide wall portion contacts the outer peripheral edge of the head portion of the cover fixing screw to move the corner cover toward a normal position on the corner portion.
  • FIG. 1 is a perspective view of an air conditioner according to an embodiment.
  • FIG. 2 is a perspective view of the air conditioner showing a state in which the indoor unit and the ceiling panel are separated from each other.
  • FIG. 3 is a perspective view of the air conditioner showing a state in which one corner cover is removed from the ceiling panel.
  • FIG. 4 is a perspective view of the ceiling panel showing the positional relationship between the frame and the suction grille.
  • FIG. 5 is a plan view of the ceiling panel showing a state in which the corner cover is removed from one corner of the frame.
  • FIG. 6 is a perspective view of the suction grill.
  • FIG. 7 is an enlarged perspective view showing a portion F7 in FIG.
  • FIG. 8 is a perspective view showing the positional relationship between the frame and the hinge of the suction grille.
  • FIG. 9 is a perspective view showing the positional relationship between the lattice portion of the suction grille and the operation portion of the hook.
  • FIG. 10 is a plan view showing the positional relationship between the lattice portion of the suction grille and the operation portion of the hook.
  • FIG. 11 is a plan view of the corner cover.
  • FIG. 12 is a perspective view of the corner cover as seen from the back side.
  • FIG. 13 is a plan view showing a positional relationship between the screw fixing portion of the corner cover and the cover fixing screw.
  • FIG. 14 is a cross-sectional view showing the positional relationship between the head of the cover fixing screw and the guide wall.
  • FIG. 15 is a cross-sectional view showing the positional relationship between the head of the cover fixing screw and the guide wall when the cover fixing screw is tightened.
  • FIG. 16 is a perspective view showing the positional relationship between the screw fixing portion of the corner cover and the cover fixing screw screwed into the screw receiving portion.
  • FIG. 17 is a perspective view showing a state in which the corner cover is fixed at a normal position on the corner portion of the frame body.
  • FIG. 1 is a perspective view of a ceiling-embedded air conditioner
  • FIG. 2 is a perspective view showing a state in which an indoor unit and a ceiling panel are separated from each other
  • FIG. It is a perspective view which shows the state removed.
  • the air conditioner 1 includes an indoor unit 2 installed on the back of the ceiling and a ceiling panel 3 attached to the lower end of the indoor unit 2 as main elements.
  • the indoor unit 2 includes a sheet metal casing 4.
  • the casing 4 is a box-shaped element that opens downward, and is suspended from a beam on the back of the ceiling via, for example, four suspension bolts (not shown).
  • the casing 4 includes a side surface portion 5 continuous in the circumferential direction.
  • the side surface portion 5 has four outer peripheral corner portions 5a, and a hanging metal fitting 6 is fixed to each outer peripheral corner portion 5a.
  • the suspension fitting 6 protrudes horizontally toward the four sides of the casing 4, and the lower end of the suspension bolt is connected to the suspension fitting 6.
  • brackets 7 are fixed to the casing 4.
  • the bracket 7 is positioned at the lower end portion of the outer peripheral corner portion 5a of the casing 4 so as to be positioned directly below the suspension fitting 6.
  • the bracket 7 protrudes horizontally toward the four sides of the casing 4.
  • a panel fixing screw 8 is attached to the protruding end of each bracket 7.
  • the panel fixing screw 8 is an element used when fixing the ceiling panel 3 to the indoor unit 2, and protrudes downward from the bracket 7.
  • the blower 10 is accommodated in the casing 4.
  • a so-called centrifugal fan that sucks air from the axial direction and discharges it in the circumferential direction is used. Since the upper end of the blower 10 is covered with the top plate portion of the casing 4, the lower end of the blower 10 is on the suction side.
  • Drain pan 11 is fitted into the lower end of casing 4.
  • the drain pan 11 is an element that receives drain water dripped from a heat exchanger arranged around the blower 10 and is made of, for example, foamed polystyrene that is a kind of foamed plastic.
  • the drain pan 11 has a circular opening 12.
  • the opening 12 is located at the center of the drain pan 11.
  • a bell mouth 13 is fitted in the opening 12 of the drain pan 11.
  • the bell mouth 13 defines a suction port 14 connected to the suction side of the blower 10.
  • the suction port 14 is located at the center of the lower end of the casing 4.
  • the drain pan 11 has a peripheral edge that surrounds the suction port 14.
  • Four notches 15 through which the air that has passed through the heat exchanger is guided are formed at the peripheral edge of the drain pan 11.
  • the notch 15 has an elongated shape extending along the peripheral edge of the drain pan 11.
  • the notches 15 adjacent to each other in the circumferential direction of the drain pan 11 are maintained in a positional relationship such that they are orthogonal to each other.
  • the drain pan 11 is detachably supported on the lower end of the casing 4 through four drain pan fixing brackets 17.
  • the drain pan fixture 17 is screwed to the lower surface of the bracket 7.
  • the drain pan fixing bracket 17 extends horizontally from the lower end of the outer peripheral corner 5 a of the casing 4 toward the four corners of the drain pan 11, and the lower surface of the corner of the drain pan 11 is placed on the drain pan fixing bracket 17. Has been. Thus, the drain pan 11 is held at the lower end of the casing 4 so as not to fall out of the casing 4.
  • the ceiling panel 3 is an element that covers the indoor unit 2 from the indoor side, and is arranged in a posture along a ceiling (not shown). As shown in FIG. 4, the ceiling panel 3 includes a suction grill 20 and a frame body 21. The suction grill 20 is located at the center of the ceiling panel 3.
  • the suction grill 20 is composed of an outer frame portion 22 and a lattice portion 23.
  • the outer frame portion 22 is a square element having first to fourth side portions 24a, 24b, 24c, and 24d.
  • the first to fourth side portions 24a, 24b, 24c, and 24d are formed of an elongated flat plate having a predetermined width, and the inner and outer peripheral edges of all the side portions 24a, 24b, 24c, and 24d. The lengths are even.
  • the outer peripheral edges of the first to fourth side portions 24a, 24b, 24c, and 24d define outer peripheral corner portions 22a that are pointed at right angles at the four corners of the outer frame portion 22 by being orthogonal to each other.
  • a first rib 25 and a second rib 26 are formed on the back surface of the outer frame portion 22.
  • the first rib 25 is erected from the inner peripheral edge of the first to fourth side parts 24 a, 24 b, 24 c, 24 d and is formed in a rectangular frame shape that is continuous in the circumferential direction of the outer frame part 22. .
  • the second rib 26 is erected from the back surface of the outer frame portion 22 so as to surround the first rib 25.
  • the second rib 26 is positioned inside the outer peripheral edge of the outer frame portion 22 and is formed in a rectangular frame shape that is continuous in the circumferential direction of the outer frame portion 22.
  • the second rib 26 has four corners 26a that are pointed at right angles.
  • the corner portion 26 a is located inside the outer frame portion 22 with respect to the outer peripheral corner portion 22 a at a position corresponding to the outer peripheral corner portion 22 a of the outer frame portion 22.
  • reinforcing ribs 28 are formed at four locations on the back surface of the outer frame portion 22.
  • Each reinforcing rib 28 is erected from the back surface of the outer frame portion 22 so as to connect between the corner portion 26 a of the second rib 26 and the outer peripheral corner portion 22 a of the outer frame portion 22.
  • the reinforcing rib 28 has a first reinforcing wall 28a and a second reinforcing wall 28b.
  • the first reinforcing wall 28 a extends in the diagonal direction of the outer frame portion 22 from the apex of the corner portion 26 a of the second rib 26 toward the apex of the outer peripheral corner portion 22 a of the outer frame portion 22.
  • the second reinforcing wall 28b is bifurcated from the tip of the first reinforcing wall 28a.
  • the tip of the second reinforcing wall 28b reaches the outer peripheral edge of two adjacent side portions 24a, 24b, 24c, and 24d that define the outer peripheral corner portion 22a of the outer frame portion 22.
  • the presence of the reinforcing ribs 28 reinforces the four outer peripheral corner portions 22a of the outer frame portion 22 from the back side, and the outer peripheral corner portions 22a and thus the first to fourth side portions 24a, 24b, 24c, 24d. Flatness is sufficiently secured.
  • a pair of hinges 30 are formed integrally with the third side portion 24 c of the outer frame portion 22.
  • One hinge 30 is located at the outer peripheral corner 22a defined by the third side 24c and the fourth side 24d.
  • the other hinge 30 is located at the outer peripheral corner 22a defined by the third side 24c and the second side 24b. For this reason, the hinges 30 are separated from each other in the longitudinal direction of the third side portion 24c.
  • Each hinge 30 has an arm portion 31.
  • the arm portion 31 protrudes outside the outer frame portion 22 beyond the outer peripheral edge of the third side portion 24c.
  • a shaft portion 32 is formed at the tip of the arm portion 31 along the longitudinal direction of the third side portion 24c.
  • the second reinforcing wall 28 b of the reinforcing rib 28 also serves as a part of the arm portion 31. That is, the reinforcing rib 28 is connected to the arm portion 31 of the hinge 30, so that the arm portion 31 becomes an integral structure with the reinforcing rib 28, and the strength of the arm portion 31 is sufficiently secured.
  • the lattice portion 23 of the suction grill 20 is surrounded by the first rib 25 of the outer frame portion 22.
  • the lattice portion 23 has a plurality of horizontal bars 34.
  • the horizontal bars 34 are arranged in parallel with a space between each other so as to connect the second side 24b and the fourth side 24d of the outer frame part 22.
  • a square filter 35 is disposed behind the lattice portion 23.
  • the filter 35 is detachably supported by the first reinforcing rib 25.
  • the frame body 21 of the ceiling panel 3 surrounds the outer frame portion 22 of the suction grill 20.
  • the frame body 21 includes first to fourth panel pieces 38a, 38b, 38c, and 38d, and first to fourth corner portions 39a, 39b, 39c, and 39d.
  • the first to fourth panel pieces 38a, 38b, 38c, and 38d extend linearly along the first to fourth sides 24a, 24b, 24c, and 24d of the outer frame portion 22 of the suction grill 20.
  • the lengths of the inner peripheral edge and the outer peripheral edge of all the panel pieces 38a, 38b, 38c, 38d are equal. Adjacent first to fourth panel pieces 38a, 38b, 38c, 38d are kept in a positional relationship such that they are orthogonal to each other.
  • the first to fourth corner portions 39a, 39b, 39c, and 39d are located at the four corners of the ceiling panel 3, and the first to fourth panel piece portions 38a, 38b, and 38c that are adjacent to each other in the circumferential direction of the frame body 21. , 38d are integrally connected.
  • first corner portion 39a connects the first panel piece portion 38a and the fourth panel piece portion 38d.
  • the second corner portion 39b connects the first panel piece portion 38a and the second panel piece portion 38b.
  • the third corner portion 39c connects the second panel piece portion 38b and the third panel piece portion 39c.
  • the fourth corner portion 39d connects the third panel piece portion 39c and the fourth panel piece portion 39d.
  • first to fourth panel pieces 38a, 38b, 38c, and 38d are framed in a square shape via the first to fourth corner portions 39a, 39b, 39c, and 39d.
  • a rectangular region surrounded by the inner peripheral edges of the first to fourth panel pieces 38a, 38b, 38c, and 38d defines a working opening 40.
  • a pair of lock holes 41 are formed on the inner peripheral edges of the first to fourth panel pieces 38a, 38b, 38c, and 38d facing the work opening 40, respectively.
  • the lock hole 41 is adjacent to the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21 in the longitudinal direction of the first to fourth panel piece portions 38a, 38b, 38c, 38d. Are separated from each other.
  • a pair of temporary hooks 42 (only one of them is shown) is attached to the inner peripheral edge of the first panel piece 38a and the third panel piece 38c facing the work opening 40.
  • the temporary bracket 42 is an element used when temporarily fixing the ceiling panel 3 to the indoor unit 2, and is a frame body from an intermediate portion along the longitudinal direction of the first panel piece portion 38 a and the third panel piece portion 38 c. It protrudes toward the upper side of 21.
  • the upper end of the temporary hook 42 is removably hooked to the lower end of the bell mouth 13 facing the suction port 14. Thereby, the ceiling panel 3 is temporarily fixed to the indoor unit 2 in a form suspended from the bell mouth 13.
  • the hinge 30 of the outer frame portion 22 is selectively selected from any one of the first to fourth panel pieces 38 a, 38 b, 38 c, 38 d of the frame body 21.
  • the frame body 21 is rotatably supported.
  • a recess 43 and a relief groove 44 are formed in the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21, respectively.
  • the recess 43 is an element into which the arm portion 31 of the hinge 30 and the second reinforcing wall 28 b of the reinforcing rib 28 enter, and below the frame body 21. It has a square shape that is open toward.
  • the escape groove 44 is an element into which the first reinforcing wall 28a of the reinforcing rib 28 is inserted, and extends in the diagonal direction of the frame body 21 so as to connect the recess 43 and the work opening 40.
  • the escape groove 44 is continuous with the recess 43 and is opened toward the lower side of the frame body 21.
  • the arm portion 31 of the hinge 30 is inserted into the recessed portions 43 positioned on both sides of the third panel piece portion 38 c, and the shaft portion 32 at the distal end of the arm portion 31 is the terminal end of the recessed portion 43. It is caught in a pivotable manner.
  • the suction grill 20 is a frame body that is rotatable about the shaft portion 32 of the hinge 30 between a first position where the work opening 40 is closed and a second position where the work opening 40 is opened. 21 is supported.
  • the suction grill 20 is rotated to the first position.
  • the outer peripheral portion of the outer frame portion 22 of the suction grill 20 continuously covers the inner peripheral portion of the frame body 21 in the circumferential direction, and the second ribs 26 are the first to fourth panel piece portions. It fits inside the work opening 40 defined by 38a, 38b, 38c, 38d.
  • the arm portion 31 of the hinge 30 and the second reinforcing wall 28b of the reinforcing rib 28 are brought into the concave portions 43 of the third corner portion 39c and the fourth corner portion 39d. Get in. Further, the first reinforcing wall 28a of the reinforcing rib 28 enters the clearance grooves 44 of the third corner portion 39c and the fourth corner portion 39d.
  • the reinforcing rib 28 and the arm portion 31 interfere with the frame body 21 of the suction grill 20 even though the reinforcing rib 28 that reinforces the outer peripheral corner portion 22 a of the outer frame portion 22 is connected to the arm portion 31 of the hinge 30. Can be avoided.
  • the four outer peripheral corner portions 22a of the outer frame portion 22 are in contact with the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21.
  • the inner periphery is covered and covers the recess 43 and the escape groove 44. For this reason, the tops of the four outer peripheral corners 22a greatly project from the inner peripheral part of the first to fourth corner parts 39a, 39b, 39c, 39d toward the outer peripheral part.
  • FIG. 4 discloses a state in which the suction grill 20 is rotated to the second position.
  • the suction grille 20 In the second position, the suction grille 20 is rotated downward with respect to the frame body 21 and is held in a posture that hangs down from the third panel piece portion 38c.
  • daily maintenance work such as removing the filter 35 from the first rib 25 of the suction grill 20 and cleaning it, or replacing the filter 35.
  • a pair of hooks 46 that hold the suction grill 20 in the first position are incorporated in the first side portion 24 a of the outer frame portion 22.
  • the hooks 46 are separated from each other in the longitudinal direction of the first side portion 24 a so as to be adjacent to the corner portion 26 a of the second rib 26.
  • the hook 46 is between an engagement release position that fits between the first rib 25 and the second rib 26 and an engagement position that protrudes from the second rib 26 toward the periphery of the outer frame portion 22.
  • the outer frame portion 22 is slidably supported.
  • the tip of the hook 46 is detached from the lock hole 41 of the first panel piece 38a. Thereby, the suction grill 20 can be rotated from the first position to the second position.
  • Each hook 46 has a plate-like operation portion 47.
  • the operation unit 47 is an element for sliding the hook 46, and has a size that allows the operator to hook the fingertip of the hand. As shown in FIGS. 1, 9, and 10, the operation unit 47 is disposed in parallel with the cross rail 34 of the lattice unit 23 at both ends along the longitudinal direction of the first side 24 a.
  • the operation portion 47 is exposed outside the lattice portion 23 from the gap g between the inner peripheral edge of the first side portion 24a and one horizontal rail 34 adjacent to the inner peripheral edge. Furthermore, when the hook 46 is slid to the engagement position, the operation portion 47 enters a recess 48 formed on the inner peripheral edge of the first side portion 24a.
  • the operation portion 47 of the hook 46 is housed in the recess 48 outside the lattice portion 23 at both ends along the longitudinal direction of the first side portion 24a. Yes. Accordingly, the operation unit 47 is embedded in the first side portion 24a, and the operation unit 47 is less noticeable.
  • the ceiling panel 3 has four outlets 50 for discharging the air that has passed through the heat exchanger into the room.
  • the blower outlet 50 is formed in the 1st thru
  • louvers 51 are supported by the frame body 21 of the ceiling panel 3.
  • the louver 51 is an element that changes the blowing direction of the air blown into the room from the blower outlet 50, and is formed in a flat and slender plate shape.
  • the louver 51 is rotatable between a closed position that closes the air outlet 50 and an open position that is inclined so as to open the air outlet 50. When the louver 51 is turned to the closed position, the louver 51 is horizontal and covers the first to fourth panel pieces 38a, 38b, 38c, and 38d.
  • the ceiling panel 3 is detachably connected to the lower end of the indoor unit 2 at the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21. Since the connecting portions of the indoor unit 2 and the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 have similar structures, the third corner portion 39c is representative in this embodiment. To explain.
  • the third corner portion 39 c of the frame body 21 has an accommodating portion 52 that is positioned directly below one outer peripheral corner portion 5 a of the indoor unit 2.
  • the accommodating part 52 is prescribed
  • the panel fixing screw 8 protruding downward from the bracket 7 of the casing 4 penetrates the top plate portion 53 of the storage portion 52 and protrudes into the storage portion 52.
  • the fixing bracket 55 is rotatably supported by the top plate portion 53 of the housing portion 52.
  • the fixture 55 has a slit-like cut 56.
  • the fixing metal 55 is rotatable between an engagement position where the notch 56 is caught by the lower end portion of the panel fixing screw 8 and an engagement release position where the notch 56 is detached from the lower end portion of the panel fixing screw 8.
  • the fixing bracket 55 is sandwiched between the head at the lower end of the panel fixing screw 8 and the top plate portion 53 of the housing portion 52.
  • the ceiling panel 3 is fixed to the lower end of the indoor unit 2 so as to cover the lower end of the indoor unit 2 from below.
  • the third corner portion 39 c of the frame body 21 has a plurality of engagement holes 57 and screw receiving portions 58.
  • the engagement hole 57 is disposed on the outer peripheral portion of the third corner portion 39 c that defines the outline of the frame body 21.
  • the engagement holes 57 are separated from each other in the circumferential direction of the frame body 21 so as to be positioned around the accommodating portion 52.
  • the screw receiving portion 58 protrudes downward from the top plate portion 53 of the accommodating portion 52 at a position adjacent to the concave portion 43 of the third corner portion 39c.
  • a cover fixing screw 60 is attached to the protruding end of the screw receiving portion 58.
  • the cover fixing screw 60 has a shaft portion 60a screwed into the screw receiving portion 58, and a head portion 60b provided coaxially at the end of the shaft portion 60a.
  • the head 60b has a larger outer diameter than the shaft portion 60a and a circular outer peripheral edge.
  • the cover fixing screw 60 is positioned on a diagonal line connecting the first corner portion 39a and the third corner portion 39c of the frame body 21. Further, the screw receiving portion 58 and the head portion 60b of the cover fixing screw 60 are provided at a position covered with one top portion 22a of the suction grill 20 held at the first position.
  • the engagement hole 57, the screw receiving portion 58, and the cover fixing screw 60 are not only applied to the third corner portion 39c but also to the first corner portion 39a, the second corner portion 39b, and the fourth corner portion 39d. Is provided.
  • the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 are covered with removable corner covers 62, respectively.
  • the corner cover 62 is a flat plate-like element having a size that covers the first to fourth corner portions 39a, 39b, 39c, and 39d from the bottom.
  • the outer peripheral part of the corner cover 62 has a right-pointed shape including two sides orthogonal to each other.
  • a cut portion 63 cut out at a right angle so as to avoid the outer peripheral corner portion 22 a of the suction grill 20 is formed on the inner peripheral portion of the corner cover 62.
  • the corner cover 62 has a plurality of engaging claws 64 and a screw fixing portion 65.
  • the engaging claw 64 protrudes from the back surface of the outer peripheral portion of the corner cover 62 so as to correspond to the engaging hole 57 of the third corner portion 39c.
  • a hook 64 a that is bent at a right angle toward the cut portion 63 of the corner cover 62 is formed at the tip of each engagement claw 64.
  • the screw fixing portion 65 protrudes from the center of the cut portion 63 toward the screw receiving portion 58.
  • the screw fixing portion 65 has a guide groove 66 through which the shaft portion 60a of the cover fixing screw 60 is slidably passed.
  • the guide groove 66 extends in a direction along a diagonal line connecting the first corner portion 39 a and the third corner portion 39 c of the frame body 21 and is opened at the tip of the screw fixing portion 65.
  • a guide wall portion 70 is formed on the protruding end portion of the screw fixing portion 65.
  • the guide wall portion 70 is raised from the outer peripheral portion of the screw fixing portion 65 so as to surround the guide groove 66, and is curved so as to approach each other as it proceeds in the direction of the opening end of the guide groove 66.
  • the inner surface of the guide wall portion 70 constitutes a guide surface 71 that is inclined with respect to the outer peripheral edge of the head 60 b of the cover fixing screw 60 so as to approach the opening edge of the guide groove 66.
  • the guide surface 71 is interposed between the head 60b of the cover fixing screw 60 and the screw fixing portion 65, and the head It inclines so that it may enter the inner side along the radial direction of the head 60b rather than the outer periphery of 60b. Further, the end of the guide surface 71 reaches the screw fixing portion 65.
  • the guide wall 70 has an opening 72 cut out so that the shaft 60a of the cover fixing screw 60 can pass therethrough.
  • the opening 72 communicates with the tip of the guide groove 66.
  • the cover fixing screw 60 is loosened, and the head portion 60b of the cover fixing screw 60 is removed. Is kept away from the screw receiving portion 58.
  • the engaging claws 64 of the corner cover 62 are inserted into the engaging holes 57 of the first to fourth corner portions 39a, 39b, 39c, 39d, and the guide groove 66 of the screw fixing portion 65 is inserted into the cover fixing screw 60.
  • the corner cover 62 is slid in the diagonal direction of the frame body 21 so as to approach the shaft portion 60a.
  • the corner cover 62 In the normal position, the corner cover 62 is positioned on the same plane as the outer frame portion 22 of the suction grill 20 and the louver 51 rotated to the closed position. Further, the gaps formed at the joints between the cut part 63 of the corner cover 62 and the outer peripheral corner part 22a of the outer frame part 22 and the joints between the corner cover 62 and the louver 51 are all corner parts 39a, 39b, 39c and 39d are substantially equal.
  • the outer periphery of the corner cover 62 continues in a straight line with respect to the outer peripheral edge of the louver 51 rotated to the closed position, and a sense of unity between the corner cover 62 and the louver 51 is obtained.
  • the corner cover 60 is pulled out from the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 in the direction in which the guide groove 66 of the corner cover 62 is detached from the shaft portion 60a of the cover fixing screw 60. be able to.
  • corner cover 62 can be removed from the frame body 21 without removing the cover fixing screw 60 from the screw receiving portion 58, and the cover fixing screw 60 can be prevented from being lost.
  • the corner cover 62 when the corner cover 62 is fixed to the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21, when the cover fixing screw 60 is tightened, the head 60b of the cover fixing screw 60 is secured.
  • the outer peripheral edge of the guide contacts the guide surface 71 of the guide wall 70.
  • a pulling force acts on the corner cover 62 toward the screw receiving portion 58.
  • the corner cover 62 moves along the diagonal line of the frame body 21 and is fixed at a regular position.
  • the corner cover 62 is accurately aligned with all the corner portions 39a, 39b, 39c, and 39d of the frame body 21, and the appearance of the ceiling panel 3 is improved.
  • the flatness of the louver 51 is ensured by the reinforcing ribs 28. Therefore, when the louver 51 is rotated to the first position, the joint between the both ends of the louver 51 and the corner cover 62 is obtained. A large level difference can be avoided. At the same time, the gap generated at the joint between the both ends of the louver 51 and the corner cover 62 becomes inconspicuous, which is advantageous for maintaining the appearance of the ceiling panel 3 and thus the air conditioner 1 well.
  • the corner cover 62 is fixed at a normal position by a simple operation of simply tightening the cover fixing screw 60, the cover fixing screw 60 is tightened while paying close attention so that the posture of the corner cover 62 does not change. Troublesome and time-consuming work is not required. For this reason, the corner cover 62 can be easily fixed to the frame body 21, and workability is improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
PCT/JP2017/007402 2017-02-27 2017-02-27 天井パネルおよび空気調和機 WO2018154765A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17897295.6A EP3587952B1 (de) 2017-02-27 2017-02-27 Deckenplatte und klimaanlage
PCT/JP2017/007402 WO2018154765A1 (ja) 2017-02-27 2017-02-27 天井パネルおよび空気調和機
JP2019500992A JP6772361B2 (ja) 2017-02-27 2017-02-27 天井パネルおよび空気調和機

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JPS5963205U (ja) * 1982-10-22 1984-04-25 シャープ株式会社 部品取付装置
JP2003202151A (ja) * 2002-01-10 2003-07-18 Mitsubishi Electric Corp 天井埋込形空気調和機
JP2004085002A (ja) * 2002-08-23 2004-03-18 Advanced Kucho Kaihatsu Center Kk 空気調和機の室内機
JP2006234316A (ja) * 2005-02-25 2006-09-07 Mitsubishi Heavy Ind Ltd 空気調和装置用化粧パネル及びこれを用いた空気調和装置

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JPS4916552B1 (de) 1970-01-20 1974-04-23
JPS5016802U (de) * 1973-06-11 1975-02-22
JPS5963205U (ja) * 1982-10-22 1984-04-25 シャープ株式会社 部品取付装置
JP2003202151A (ja) * 2002-01-10 2003-07-18 Mitsubishi Electric Corp 天井埋込形空気調和機
JP2004085002A (ja) * 2002-08-23 2004-03-18 Advanced Kucho Kaihatsu Center Kk 空気調和機の室内機
JP2006234316A (ja) * 2005-02-25 2006-09-07 Mitsubishi Heavy Ind Ltd 空気調和装置用化粧パネル及びこれを用いた空気調和装置

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EP3587952B1 (de) 2021-11-24
JPWO2018154765A1 (ja) 2019-11-07
EP3587952A1 (de) 2020-01-01
JP6772361B2 (ja) 2020-10-21

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