EP3361174B1 - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- EP3361174B1 EP3361174B1 EP17753097.9A EP17753097A EP3361174B1 EP 3361174 B1 EP3361174 B1 EP 3361174B1 EP 17753097 A EP17753097 A EP 17753097A EP 3361174 B1 EP3361174 B1 EP 3361174B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- front panel
- panel
- openable
- body housing
- closable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
- F24F2013/1446—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with gearings
Definitions
- the present invention relates to an air conditioner, and more particularly, to an air conditioner of which a front panel is opened so as to be tilted forward for an increase in a suction area.
- a grill part 2 is openably and closably provided on a front surface 1a of an air conditioner body 1 of an air conditioner disclosed in JP 2013-122326 A .
- the grill part 2 includes a front panel 2b that is openably and closably provided on the front surface 1a so as to cover the front surface 1a of the air conditioner body 1, and an openable/closable panel 2a that is provided on the front panel 2b to be capable of being opened and closed with respect to the front panel 2b.
- the openable/closable panel 2a is opened forward so as to be tilted forward with respect to the front panel 2b. Accordingly, since a large amount of room air is sucked through intake ports that are provided on both the upper surface and the front surface 1a of the air conditioner, the amount of heat to be exchanged between a refrigerant of a heat exchanger 5 built in the air conditioner and the room air is increased. As a result, heating and cooling efficiency can be improved. It is preferable that the opening angle of the openable/closable panel 2a is large.
- the lower edge portion of the front panel 2b is raised up and rotated with respect to the front surface 1a of the air conditioner body 1 during the stop of the air conditioner, so that the openable/closable panel 2a and the front panel 2b, that is, the entire grill part 2 is opened with respect to the front surface 1a. Accordingly, maintenance work, such as the cleaning and attachment/detachment of a filter 4 provided on the front surface 1a and the washing of the heat exchanger 5, can be performed.
- link mechanisms 60 that include a plurality of links made of a resin, drive units 30 in which motors and gears for driving the link mechanisms 60 are built, and the like are mounted on the inner surfaces of both end portions of the front panel 2b in a longitudinal direction as shown in Fig. 2 of JP 2013-122326 A .
- the link mechanism 60 includes a cross link 606 that is driven and rotated by the drive unit 30 and is made of a resin, a first link 608, a second link 610, and a third link 613; and the first link 608 is inserted into a hole-shaped insertion portion 614 formed at the intermediate portion of the second link 610.
- the cross link 606 is rotated in a predetermined direction, the first link 608 is pushed out and the second link 610 and the third link 613 are pulled up. Accordingly, the openable/closable panel 2a is opened.
- EP 2 226 581 A1 discloses an air conditioner on which the preamble portion of claim 1 is based and of which a front panel is configured to be opened so as to be tilted forward.
- the link mechanism 60 for opening the openable/closable panel 2a includes the cross link 606, the first link 608, the second link 610, and the third link 613 as described above; and the length of the first link 608 should be made long to take a large opening angle of an upper portion of the openable/closable panel 2a in this structure.
- the second link 610 should also be made long to make the first link 608 long. Accordingly, since a large space in which the respective links 608, 610, and 613 are stored below the openable/closable panel 2a should be secured in a case in which the openable/closable panel 2a is closed, the size of the air conditioner body 1 is forced to be increased.
- the lower portion of the openable/closable panel 2a is separated from the front surface 1a of the air conditioner body 1.
- air-conditioned air which is discharged from a discharge outlet 11 provided at the lower portion of the front surface 1a, is suddenly sucked to an intake port, which is provided on the front surface 1a, from a gap between the lower end of the openable/closable panel 2a and the front surface 1a, there is a concern that heating and cooling efficiency may be lowered and dew condensation may occur in the air conditioner during a cooling operation.
- the invention has been made in consideration of the above-mentioned circumstances, and an object of the invention is to provide an air conditioner of which an openable/closable panel provided on a front surface is opened so as to be tilted forward, opening/closing mechanisms for an openable/closable panel can be made to have a simple and light structure, an opening angle of an upper portion of the openable/closable panel can be made large to allow the amount of sucked air to increase, and workability during maintenance work, which is to be performed in a state in which the openable/closable panel and a front panel are opened, can be improved.
- the invention provides an air conditioner with the features of claim 1 to achieve the object.
- an air conditioner according to the invention includes a front panel that covers a front surface of a body housing and is openably and closably provided so as to be opened up about a hinge portion provided at an upper side of the front panel as an axis, an openable/closable panel that is mounted on the front panel to be capable of being opened and closed with respect to the front panel, and opening/closing mechanisms that open and close the openable/closable panel between a closed position where the openable/closable panel closes an intake opening of the front panel and an open position where the openable/closable panel is opened forward so as to be tilted forward with respect to the front panel.
- the opening/closing mechanisms include slide rails that are provided on both side portions of the front panel and extend in a vertical direction, fixed pivot parts that are provided above the slide rails, sliders that are provided so as to be slidable along the slide rails and include movable pivot parts and rack gears, upper pivot parts and lower pivot parts that are provided on both side portions of the openable/closable panel, upper links that connect the fixed pivot parts to the upper pivot parts, lower links that connect the movable pivot parts to the lower pivot parts and are shorter than the upper links, intermediate links that connect intermediate pivot parts, which are provided at intermediate portions of the upper links, to the movable pivot parts, and drive units that include pinion gears meshing with the rack gears of the sliders.
- the pinion gears of the drive units are rotated to push the sliders up.
- the intermediate links which are connected to the movable pivot parts of the sliders, push the intermediate portions of the upper links, which connect the fixed pivot parts of the body housing to the upper pivot parts of the openable/closable panel, up.
- the upper links are rotated up, so that the upper portion of the openable/closable panel placed at the closed position is separated from the front panel and the entire openable/closable panel is raised up.
- the lower links are rotated up and the lower portion of the openable/closable panel is separated from the front panel. Since the lower links are shorter than the upper links, the openable/closable panel is opened forward so as to be tilted forward with respect to the front panel. Accordingly, the openable/closable panel is placed at the open position.
- the opening/closing mechanism can be made to have a simple and light structure.
- front panel can be opened up with respect to the front surface of the body housing together with the openable/closable panel, maintenance work, such as the cleaning and attachment/detachment of filters of the intake ports provided on the front surface of the body housing and the washing of the heat exchanger, can be performed.
- the drive units are installed in the body housing, and the pinion gears of the drive units may mesh with the rack gears in a case in which the front panel is closed with respect to the body housing.
- the heavy drive units remain in the body housing. For this reason, the weight of the entire front panel can be reduced, so that workability during maintenance work, which is to be performed in a state in which the front panel is opened, can be improved.
- each slider is relatively movable with respect to the movable pivot part in a sliding direction of the slider, and is urged to a neutral position of a movement range thereof relative to the movable pivot part by an urging portion.
- the positions of the teeth of the rack gear are made to match the positions of the teeth of the pinion gear by the movement of the rack gear of the slider relative to the movable pivot part in the sliding direction even though the positions of the teeth of the rack gear of the slider deviate from the positions of the teeth of the pinion gear of the drive unit.
- the rack gear and the pinion gear are made to reliably mesh with each other in a case in which the front panel is to be closed, the front panel can be smoothly closed and workability during maintenance work, which is to be performed in a state in which the front panel is opened, can be improved.
- the air conditioner may further include locking mechanisms that lock an operation for opening/closing the openable/closable panel with respect to the front panel in a case in which the front panel is opened with respect to the front surface of the body housing.
- each of the locking mechanism includes: a hook through-hole that is perforated in the front panel; an annular hook that protrudes from a rear surface of the openable/closable panel and is to be inserted into the hook through-hole in a case in which the openable/closable panel is placed at the closed position; a latch member that is provided on a rear surface of the front panel, slides between a locked position where a tip portion of the latch member protrudes so as to overlap the hook through-hole and an unlocked position where the tip portion does not overlap the hook through-hole, includes a swash plate cam formed on a back surface thereof, and is normally urged toward the locked position; and a release protrusion that protrudes from the front surface of the body housing, and comes into contact with the swash plate cam of the latch member to allow the latch member to slide toward the unlocked position in a case in which the front panel is closed with respect to the front surface of the body housing.
- the release protrusion comes into contact with the swash plate cam of the latch member and the latch member slides toward the unlocked position. For this reason, the openable/closable panel can be moved relative to the front panel between the closed position and the open position.
- the locking mechanisms included in the opening/closing mechanisms for the openable/closable panel can be made to have a simple and light structure.
- the air conditioner may further include a support lever that is rotatably provided on the front surface of the body housing and is bridged between the front panel and the front surface of the body housing to hold the front panel in an open state in a case in which the front panel is opened with respect to the front surface of the body housing.
- the support lever since the support lever is bridged in a state in which the front panel is opened, the front panel can be held in an open state. Accordingly, the workability of maintenance can be improved.
- a drawing hook which draws the support lever to a functional position in a case in which the front panel is opened with respect to the front surface of the body housing, may be provided on the rear surface of the front panel.
- the openable/closable panel provided on the front surface is opened so as to be tilted forward
- the opening/closing mechanisms for the openable/closable panel can be made to have a simple and light structure, an opening angle of the upper portion of the openable/closable panel can be made large to allow the amount of sucked air to increase, and workability during maintenance work, which is to be performed in a state in which the openable/closable panel and the front panel are opened, can be improved.
- Figs. 1 to 5 show an air conditioner according to an embodiment of the invention.
- the air conditioner 1 is installed indoors as an indoor unit of an air conditioning system that compresses a refrigerant to perform heating and cooling.
- the air conditioner 1 includes a rectangular body housing 2 that is molded with a resin, a front panel 3 that covers a front surface 2a of the body housing 2, and an openable/closable panel 4 that serves as an appearance design surface mounted on the front panel 3 to be capable of being opened and closed with respect to the front panel 3.
- the front panel 3 and the openable/closable panel 4 form a front panel assembly 5 (see also Figs. 6 and 7 ).
- the left and right side surfaces and the like of the body housing 2 are covered with decorative cover members (not shown), so that an appearance is formed.
- a plurality of intake ports 7 and 8 are provided on the front surface 2a and an upper surface 2b of the body housing 2, and a blower fan 9, a heat exchanger (not shown), and the like are installed in the body housing 2 (see Fig. 2 ).
- a discharge outlet 11 is provided on a lower surface 2c of the body housing 2.
- room air is sucked through the intake ports 7 and 8 by the operation of the blower fan 9 and this air exchanges heat with a cooled or heated refrigerant by passing through the heat exchanger and is discharged to a room from the discharge outlet 11 as air-conditioned air for cooling or heating.
- the intake ports 7 and 8 are provided with filters (not shown) that collect dust from sucked air.
- the front panel 3 is provided on the front surface 2a of the body housing 2 to be capable of being opened and closed with respect to the front surface 2a of the body housing 2. That is, hinge portions 13 are provided at both end portions of the upper side of the front panel 3, and the front panel 3 can be opened up about the hinge portions 13 as an axis. As shown in Figs. 2 , 6 , and 7 , a plurality of intake openings 15, which match the intake ports 7 of the body housing 2 in a case in which the front panel 3 is closed with respect to the front surface 2a of the body housing 2, are formed at the front panel 3.
- latch hooks 16 (see Figs. 2 , 3 , and 5 to 7 ), which are provided near the left and right lower end portions of the front panel 3, are inserted into hook insertion holes 17 (see Fig. 2 ) formed at the front surface 2a of the body housing 2 and are engaged with receiving-side hooks 18 (see Fig. 3 ) that are molded with a resin in the hook insertion holes 17 and has a substantially U-shape in side view. Since the receiving-side hooks 18 are elastically deformed in a case in which the latch hooks 16 are engaged with the receiving-side hooks 18, the front panel 3 is closed with a click feeling. In a case in which the left and right lower end portions of the front panel 3 are pulled with a predetermined force, the engagement of the hooks 16 and 18 can be released and the front panel 3 can be opened.
- the openable/closable panel 4 is operated to be opened and closed between a closed position 4A (see Figs. 2 , 3 , and 5 ) where the openable/closable panel 4 overlaps the front side of the front panel 3 and closes the intake openings 15 of the front panel 3 and an open position 4B (see Figs. 1 and 4 ) where the openable/closable panel 4 is opened forward so as to be tilted forward with respect to the front panel 3.
- Opening/closing mechanisms 20, which open and close the openable/closable panel 4 between the closed position 4A and the open position 4B, are provided at both side portions of the front panel 3 and the openable/closable panel 4.
- the opening/closing mechanisms 20 include slide rails 21 that are provided on both side portions of the front panel 3 and extend in a vertical direction, fixed pivot parts 22 that are provided above the slide rails 21, and sliders 23 are provided so as to be slidable along the slide rails 21.
- the slider 23 is provided with a movable pivot part 24, and a rack gear 25 is formed on the vertical side of the slider 23 facing the body housing 2.
- the opening/closing mechanisms 20 include upper pivot parts 26 and lower pivot parts 27 that are provided on both side portions of the openable/closable panel 4, upper links 28, lower links 29, and intermediate links 31.
- the upper link 28 is connected to the fixed pivot part 22 and the upper pivot part 26, and the lower link 29 is connected between the movable pivot part 24 and the lower pivot part 27.
- the lower link 29 is shorter than the upper link 28.
- the intermediate link 31 is connected to an intermediate pivot part 30, which is provided at the intermediate portion of the upper link 28, and the movable pivot part 24.
- each drive unit 33 includes a drive motor 34 that is fixed to the side surface of, for example, the body housing 2, a first gear 35 that is provided on the rotating shaft of the drive motor 34, a second gear 36 that meshes with the first gear 35, a third gear 37 that is integrally provided on the back surface of the second gear 36, and a pinion gear 38 that meshes with the third gear 37.
- the drive unit 33 may be replaced with a servo motor where the drive motor 34 and the respective gears 35 to 38 are integrated as a single body.
- the pinion gear 38 of the drive unit 33 is adapted to mesh with the rack gear 25 in a case in which the front panel 3 is closed with respect to the front surface 2a of the body housing 2. That is, in a case in which the front panel 3 is opened as shown in Fig. 5 , the rack gear 25 is separated from the pinion gear 38 and the mesh of both the gears 25 and 38 is released.
- the pinion gears 38 of the drive units 33 are rotated to push the sliders 23 up in a state in which the front panel 3 is closed with respect to the front surface 2a of the body housing 2. Accordingly, the intermediate links 31, which are connected to the movable pivot parts 24 of the sliders 23, push the intermediate portions of the upper links 28, which connect the fixed pivot parts 22 of the body housing 2 to the upper pivot parts 26 of the openable/closable panel 4, up.
- the upper links 28 are rotated up, so that the upper portion of the openable/closable panel 4 having been placed at the closed position 4A is separated from the front panel 3 and the entire openable/closable panel 4 is raised up. Since the openable/closable panel 4 is raised up, the lower links 29 are rotated up and the lower portion of the openable/closable panel 4 is separated from the front panel 3. Since the lower links 29 are shorter than the upper links 28, the openable/closable panel 4 is opened forward so as to be tilted forward with respect to the front panel 3. Accordingly, the openable/closable panel 4 is placed at the open position 4B.
- the length of the upper link 28 is made longer than the length of the lower link 29, a large opening angle of the openable/closable panel 4 at the open position 4B can be taken. Accordingly, since a large amount of room air is sucked through the intake ports 7 provided on the front surface 2a of the body housing 2, the amount of sucked air is increased. As a result, heating and cooling efficiency can be improved.
- the lower link 29 is set to the required minimum length, the lower end portion of the openable/closable panel 4 is not significantly away from the front surface 2a of the body housing 2 at the time of opening of the openable/closable panel 4. Accordingly, it is possible to prevent air-conditioned air, which is to be discharged from the discharge outlet 11, from being suddenly sucked to the intake ports.
- the opening/closing mechanisms 20 can be made to have a simple and light structure.
- front panel 3 forms the front panel assembly 5 together with the openable/closable panel 4 and the front panel assembly 5 is opened up with respect to the front surface 2a of the body housing 2 as shown in Figs. 2 and 5 .
- maintenance work such as the cleaning and attachment/detachment of the filters of the intake ports 7 provided on the front surface 2a of the body housing 2 and the washing of the heat exchanger, can be performed.
- the drive units 33 for the opening/closing mechanisms 20 for the openable/closable panel 4 are installed in the body housing 2, and the pinion gears 38 of the drive units 33 are adapted to mesh with the rack gears 25 in a case in which the front panel 3 is closed with respect to the body housing 2.
- the heavy drive units 33 remain in the body housing 2. Accordingly, the weight of the entire front panel 3 can be reduced, so that workability during maintenance work, which is to be performed in a state in which the front panel 3 is opened, can be improved.
- the slider 23 is relatively movable with respect to the movable pivot part 24 in a sliding direction thereof (a direction along the slide rail 21).
- a rectangular sliding hole 41 which extends in the sliding direction, is perforated in the slider 23, and a sliding piece 42 is slidably fitted to the sliding hole 41 and is provided with the movable pivot part 24.
- Substantially V-shaped buffers (urging portions) 42a and 42b are formed at both end portions of the sliding piece 42 in the sliding direction, and the buffers 42a elastically hold center plates 41a and 41b that protrude from both end portions of the sliding hole 41 in the sliding direction and have rounded tip portions.
- the slider 23 is normally urged by the urging action of the buffers 42a and 42b, which are provided at both end portions of the sliding piece 42, so as to be held at a neutral position C of a movement range thereof relative to the movable pivot part 24. Accordingly, in a case in which a relative force in the direction along the slide rail 21 is not applied between the slider 23 and the sliding piece 42, the position of the central portion of the sliding hole 41 in a longitudinal direction matches the position of the movable pivot part 24 of the sliding piece 42.
- the positions of the teeth of the rack gear 25 are made to match the positions of the teeth of the pinion gear 38 by the movement of the rack gear 25 of the slider 23 relative to the movable pivot part 24 in the sliding direction even though the positions of the teeth of the rack gear 25 of the slider 23 deviate from the positions of the teeth of the pinion gear 38 of the drive unit 33 (a synchronization action is exhibited).
- the rack gear 25 and the pinion gear 38 are made to reliably mesh with each other in a case in which the front panel 3 is to be closed, the front panel 3 can be smoothly closed and workability during maintenance work, which is to be performed in a state in which the front panel 3 is opened, can be improved.
- Locking mechanisms 46 shown in Figs. 7 , 10A to 12B , and the like are provided between the front panel 3 and the openable/closable panel 4.
- Each locking mechanism 46 is a mechanism that locks an operation for opening/closing the openable/closable panel 4 with respect to the front panel 3 in a case in which the front panel 3 is opened with respect to the front surface 2a of the body housing 2.
- Each locking mechanism 46 includes a hook through-hole 47 that is perforated in the front panel 3, an annular hook 48 (see also Fig. 4 ) that protrudes from the rear surface of the openable/closable panel 4 and is to be inserted into the hook through-hole 47 in a case in which the openable/closable panel 4 is placed at the closed position 4A, a pair of left and right latch members 50 that is disposed on the rear surface of the front panel 3, and a pair of left and right release protrusions 52 (see also Fig. 5 ) that protrudes from the front surface 2a of the body housing 2.
- each latch member 50 is a substantially cross-shaped small component molded with a resin, and is fitted to a slide guide 51 formed on the rear surface of the front panel 3 and can slide in a vertical direction.
- a pair of left and right leaf spring portions 50a, which horizontally protrudes, is formed on each latch member 50, and tips of the pair of left and right leaf spring portions 50a are in contact with inclined surfaces 53a of a pair of stoppers 53 formed on both sides of the slide guide 51.
- the inclined surfaces 53a of both the stoppers 53 face each other, and approach each other toward the lower side.
- each latch member 50 can slide between a locked position 50A where a tip portion 50b of the latch member 50 protrudes so as to overlap the hook through-hole 47 and a position where the tip portion 50b does not overlap the hook through-hole 47 as shown in Figs. 10B and 12B , that is, an unlocked position 50B that is present below the locked position 50A.
- the leaf spring portions 50a extend linearly without being deformed and tips of the leaf spring portions 50a are in slight contact with the inclined surfaces 53a of the stoppers 53.
- the leaf spring portions 50a are elastically deformed upward and the tips of the leaf spring portions 50a are in pressure contact with the inclined surfaces 53a of the stoppers 53.
- the latch member 50 is normally urged toward the locked position 50A by the urging force of the leaf spring portions 50a and the inclined surfaces 53a of the stoppers 53. That is, in a case in which the latch member 50 is pushed down to the unlocked position 50B from the locked position 50A, the leaf spring portions 50a are elastically deformed and the latch member 50 is returned to the locked position 50A by the reaction force of the leaf spring portions 50a.
- a swash plate cam 50c is formed on the back surface of the latch member 50.
- the inclined surface of the swash plate cam 50c ascends toward the unlocked position 50B (lower side) from the locked position 50A of the latch member 50 (upper side).
- the sliding direction of the latch member 50 may not necessarily be a vertical direction unlike in this embodiment, and may be a horizontal direction or another direction.
- each of the pair of left and right release protrusions 52 protruding from the front surface 2a of the body housing 2 does not press the swash plate cam 50c of the latch member 50.
- each latch member 50 is placed at the locked position 50A by the urging force of the leaf spring portions 50a and the tip portion 50b of each latch member 50 overlaps the hook through-hole 47, the tip portion 50b is inserted into an annular hole of the annular hook 48 inserted into the hook through-hole 47 (see also Fig. 10A ). Accordingly, the annular hook 48 is not separated from the hook through-hole 47, so that the openable/closable panel 4 is locked at the closed position 4A and cannot be moved to the open position 4B.
- each of the release protrusions 52 protruding from the front surface 2a of the body housing 2 comes into contact with the swash plate cam 50c of the latch member 50 and presses the swash plate cam 50c.
- each latch member 50 is made to slide toward the unlocked position 50B by a distance H with a thrust force, which is generated by the swash plate cam 50c, and the tip portion 50b of each latch member 50 does not overlap the hook through-hole 47, the tip portion 50b is separated from the annular hole of the annular hook 48 (see also Fig. 10B ). Accordingly, the annular hook 48 can be separated from the hook through-hole 47, so that the openable/closable panel 4 can be moved to the open position 4B from the closed position 4A.
- the locking mechanisms 46 having this structure are provided, an operation for opening/closing the openable/closable panel 4 with respect to the front panel 3 is locked by the action of the locking mechanisms 46 in a state in which the front panel 3 is opened with respect to the front surface 2a of the body housing 2. For this reason, the openable/closable panel 4 is not moved alone with respect to the front panel 3, and workability during maintenance work, which is to be performed in a state in which the front panel 3 (front panel assembly 5) is opened, can be improved. Moreover, the locking mechanism 46 can be made to have a very simple and light structure.
- a support lever 57 is provided on the front surface 2a of the body housing 2. Since the support lever 57 is provided so as to rotate up and down about a hinge portion 58 as an axis, the support lever 57 is placed at a position where the support lever 57 hangs down in a case in which the front panel 3 (front panel assembly 5) is closed (see Figs. 2 and 5 ) .
- the support lever 57 is rotated up as shown in Fig. 13 and the tip of the support lever 57 is latched on a latch protrusion 59 (see also Figs. 7 , 10A , and 10B ) formed on the rear surface of the front panel 3. Accordingly, since the support lever 57 is bridged between the front surface 2a of the body housing 2 and the front panel 3, the front panel 3 is held in a state in which the front panel 3 (front panel assembly 5) is opened.
- the support lever 57 Since the support lever 57 is provided, the front panel 3 can be held in an open state. Accordingly, workability during maintenance work, which is to be performed in a state in which the front panel 3 (front panel assembly 5) is opened, can be significantly improved. Since the support lever 57 is stored along the front surface 2a of the body housing 2 in a case in which the support lever 57 is not in use, the support lever 57 can also be stored in a narrow space between the front surface 2a of the body housing 2 and the front panel 3. Accordingly, the support lever 57 does not occupy a large space.
- Figs. 14A to 17 show another embodiment of the support lever. Since a support lever 61 is provided on the front surface 2a of the body housing 2 so as to be freely rotatable about a hinge portion 62 as in the case of the above-mentioned support lever 57, the support lever 61 is stored along the front surface 2a of the body housing 2 in a posture where the support lever 61 faces up as shown in Fig. 14A in a case in which the support lever 61 is not in use. Since a drawing hook 63 is provided on the rear surface of the front panel 3, the drawing hook 63 is latched on an upper end portion of the support lever 61 in a case in which the front panel 3 is closed.
- the support lever 61 is drawn to a functional position where the support lever 61 is tilted forward by the drawing hook 63 provided on the rear surface of the front panel 3. Since rotation-regulating protrusions 64 are provided at the base end portion of the support lever 61 as shown in Figs. 15 and 16 , the support lever 61 is held at a predetermined angle. Since the support lever 61 is bridged between the front surface 2a of the body housing 2 and the front panel 3, the front panel 3 can be held in an open state.
- the support lever 61 In a case in which the front panel 3 is closed, the support lever 61 is pushed by the rear surface of the front panel 3 and is returned to a storage position where the support lever 61 is stored along the front surface 2a of the body housing 2.
- Positioning protrusions 65 which protrude laterally, are provided on both sides of the base end portion of the support lever 61 as shown in Figs. 15 and 17 , and the positioning protrusions 65 are fitted to positioning recessed portions 66 formed at the hinge portion 62 in a case in which the support lever 61 is placed at the storage position. Accordingly, the support lever 61 is held at the storage position. For this reason, the natural rotation of the support lever 61 to the functional position or the generation of the abnormal noise, which is caused by resonance during the heating and cooling operation, is prevented.
- the drawing hook 63 provided on the rear surface of the front panel 3 draws the support lever 61 to the functional position in a case in which the front panel 3 is opened, worker's efforts to draw the support lever 61 can be reduced. Accordingly, the workability of maintenance can be improved.
- the openable/closable panel 4 provided on the front surface is opened so as to be tilted forward
- the opening/closing mechanisms 20 for the openable/closable panel 4 can be made to have a simple and light structure, an opening angle of the upper portion of the openable/closable panel 4 can be made large to allow the amount of sucked air to increase, and workability during maintenance work, which is to be performed in a state in which the openable/closable panel 4 and the front panel 3 are opened, can be improved.
- each pivot part, the length and shape of each link, and the like of the opening/closing mechanism 20 are not necessarily limited to those of the embodiment.
- the drive units 33 have only to be installed in the body housing 2, and the structure and the like of the drive unit 33 may be modified.
Description
- The present invention relates to an air conditioner, and more particularly, to an air conditioner of which a front panel is opened so as to be tilted forward for an increase in a suction area.
- As shown in
Fig. 1 ofJP 2013-122326 A grill part 2 is openably and closably provided on a front surface 1a of anair conditioner body 1 of an air conditioner disclosed inJP 2013-122326 A grill part 2 includes afront panel 2b that is openably and closably provided on the front surface 1a so as to cover the front surface 1a of theair conditioner body 1, and an openable/closable panel 2a that is provided on thefront panel 2b to be capable of being opened and closed with respect to thefront panel 2b. - During the operation of the air conditioner, the openable/
closable panel 2a is opened forward so as to be tilted forward with respect to thefront panel 2b. Accordingly, since a large amount of room air is sucked through intake ports that are provided on both the upper surface and the front surface 1a of the air conditioner, the amount of heat to be exchanged between a refrigerant of aheat exchanger 5 built in the air conditioner and the room air is increased. As a result, heating and cooling efficiency can be improved. It is preferable that the opening angle of the openable/closable panel 2a is large. - On the other hand, the lower edge portion of the
front panel 2b is raised up and rotated with respect to the front surface 1a of theair conditioner body 1 during the stop of the air conditioner, so that the openable/closable panel 2a and thefront panel 2b, that is, theentire grill part 2 is opened with respect to the front surface 1a. Accordingly, maintenance work, such as the cleaning and attachment/detachment of afilter 4 provided on the front surface 1a and the washing of theheat exchanger 5, can be performed. - In order to allow the openable/
closable panel 2a to be opened with respect to thefront panel 2b as described above, link mechanisms 60 that include a plurality of links made of a resin,drive units 30 in which motors and gears for driving the link mechanisms 60 are built, and the like are mounted on the inner surfaces of both end portions of thefront panel 2b in a longitudinal direction as shown inFig. 2 ofJP 2013-122326 A - The link mechanism 60 includes a cross link 606 that is driven and rotated by the
drive unit 30 and is made of a resin, a first link 608, a second link 610, and a third link 613; and the first link 608 is inserted into a hole-shaped insertion portion 614 formed at the intermediate portion of the second link 610. In a case in which the cross link 606 is rotated in a predetermined direction, the first link 608 is pushed out and the second link 610 and the third link 613 are pulled up. Accordingly, the openable/closable panel 2a is opened. -
EP 2 226 581 A1claim 1 is based and of which a front panel is configured to be opened so as to be tilted forward. - The link mechanism 60 for opening the openable/
closable panel 2a includes the cross link 606, the first link 608, the second link 610, and the third link 613 as described above; and the length of the first link 608 should be made long to take a large opening angle of an upper portion of the openable/closable panel 2a in this structure. - However, the second link 610 should also be made long to make the first link 608 long. Accordingly, since a large space in which the respective links 608, 610, and 613 are stored below the openable/
closable panel 2a should be secured in a case in which the openable/closable panel 2a is closed, the size of theair conditioner body 1 is forced to be increased. - In a case in which the second link 610 is made long and the openable/
closable panel 2a is opened, the lower portion of the openable/closable panel 2a is separated from the front surface 1a of theair conditioner body 1. In this case, since air-conditioned air, which is discharged from adischarge outlet 11 provided at the lower portion of the front surface 1a, is suddenly sucked to an intake port, which is provided on the front surface 1a, from a gap between the lower end of the openable/closable panel 2a and the front surface 1a, there is a concern that heating and cooling efficiency may be lowered and dew condensation may occur in the air conditioner during a cooling operation. - In addition, since all the
drive units 30 and the link mechanisms 60, which open the openable/closable panel 2a, are mounted on thefront panel 2b, thefront panel 2b is heavy. For this reason, in a case in which maintenance work, such as the cleaning and attachment/detachment of thefilter 4 and the washing of theheat exchanger 5, is performed in a state in which theentire grill part 2 is opened with respect to the front surface 1a as described above, it is difficult to continue to support theheavy front panel 2b. Accordingly, there is a problem that workability is poor. Moreover, since the openable/closable panel 2a is moved alone with respect to thefront panel 2b and shakes in a case in which theentire grill part 2 is opened with respect to the front surface 1a, there is a concern that workability deteriorates in this regard. - The invention has been made in consideration of the above-mentioned circumstances, and an object of the invention is to provide an air conditioner of which an openable/closable panel provided on a front surface is opened so as to be tilted forward, opening/closing mechanisms for an openable/closable panel can be made to have a simple and light structure, an opening angle of an upper portion of the openable/closable panel can be made large to allow the amount of sucked air to increase, and workability during maintenance work, which is to be performed in a state in which the openable/closable panel and a front panel are opened, can be improved.
- The invention provides an air conditioner with the features of
claim 1 to achieve the object. - That is, an air conditioner according to the invention includes a front panel that covers a front surface of a body housing and is openably and closably provided so as to be opened up about a hinge portion provided at an upper side of the front panel as an axis, an openable/closable panel that is mounted on the front panel to be capable of being opened and closed with respect to the front panel, and opening/closing mechanisms that open and close the openable/closable panel between a closed position where the openable/closable panel closes an intake opening of the front panel and an open position where the openable/closable panel is opened forward so as to be tilted forward with respect to the front panel. The opening/closing mechanisms include slide rails that are provided on both side portions of the front panel and extend in a vertical direction, fixed pivot parts that are provided above the slide rails, sliders that are provided so as to be slidable along the slide rails and include movable pivot parts and rack gears, upper pivot parts and lower pivot parts that are provided on both side portions of the openable/closable panel, upper links that connect the fixed pivot parts to the upper pivot parts, lower links that connect the movable pivot parts to the lower pivot parts and are shorter than the upper links, intermediate links that connect intermediate pivot parts, which are provided at intermediate portions of the upper links, to the movable pivot parts, and drive units that include pinion gears meshing with the rack gears of the sliders.
- According to the air conditioner having the above-mentioned structure, the pinion gears of the drive units are rotated to push the sliders up. Accordingly, the intermediate links, which are connected to the movable pivot parts of the sliders, push the intermediate portions of the upper links, which connect the fixed pivot parts of the body housing to the upper pivot parts of the openable/closable panel, up. For this reason, the upper links are rotated up, so that the upper portion of the openable/closable panel placed at the closed position is separated from the front panel and the entire openable/closable panel is raised up. Since the openable/closable panel is raised up, the lower links are rotated up and the lower portion of the openable/closable panel is separated from the front panel. Since the lower links are shorter than the upper links, the openable/closable panel is opened forward so as to be tilted forward with respect to the front panel. Accordingly, the openable/closable panel is placed at the open position.
- According to this structure, since the length of the upper link is made longer than the length of the lower link, a large opening angle of the openable/closable panel at the open position can be taken. Accordingly, since a large amount of room air is sucked through intake ports provided on the front surface of the body housing, the amount of sucked air is increased. As a result, heating and cooling efficiency can be improved. Moreover, the opening/closing mechanism can be made to have a simple and light structure.
- Since the front panel can be opened up with respect to the front surface of the body housing together with the openable/closable panel, maintenance work, such as the cleaning and attachment/detachment of filters of the intake ports provided on the front surface of the body housing and the washing of the heat exchanger, can be performed.
- In the air conditioner, the drive units are installed in the body housing, and the pinion gears of the drive units may mesh with the rack gears in a case in which the front panel is closed with respect to the body housing.
- According to the above-mentioned structure, in a case in which the front panel is opened up with respect to the front surface of the body housing together with the openable/closable panel and the opening/closing mechanisms, the heavy drive units remain in the body housing. For this reason, the weight of the entire front panel can be reduced, so that workability during maintenance work, which is to be performed in a state in which the front panel is opened, can be improved.
- In the air conditioner, each slider is relatively movable with respect to the movable pivot part in a sliding direction of the slider, and is urged to a neutral position of a movement range thereof relative to the movable pivot part by an urging portion.
- According to the above-mentioned structure, in a case in which the front panel is opened up with respect to the front surface of the body housing and is closed again, the positions of the teeth of the rack gear are made to match the positions of the teeth of the pinion gear by the movement of the rack gear of the slider relative to the movable pivot part in the sliding direction even though the positions of the teeth of the rack gear of the slider deviate from the positions of the teeth of the pinion gear of the drive unit.
- For this reason, since the rack gear and the pinion gear are made to reliably mesh with each other in a case in which the front panel is to be closed, the front panel can be smoothly closed and workability during maintenance work, which is to be performed in a state in which the front panel is opened, can be improved.
- The air conditioner may further include locking mechanisms that lock an operation for opening/closing the openable/closable panel with respect to the front panel in a case in which the front panel is opened with respect to the front surface of the body housing.
- According to the above-mentioned structure, in a case in which the front panel is opened with respect to the front surface of the body housing, an operation for opening/closing the openable/closable panel with respect to the front panel is locked by the action of the locking mechanisms. For this reason, the openable/closable panel is not moved alone with respect to the front panel, and the workability of maintenance can be improved.
- In the air conditioner, each of the locking mechanism includes: a hook through-hole that is perforated in the front panel; an annular hook that protrudes from a rear surface of the openable/closable panel and is to be inserted into the hook through-hole in a case in which the openable/closable panel is placed at the closed position; a latch member that is provided on a rear surface of the front panel, slides between a locked position where a tip portion of the latch member protrudes so as to overlap the hook through-hole and an unlocked position where the tip portion does not overlap the hook through-hole, includes a swash plate cam formed on a back surface thereof, and is normally urged toward the locked position; and a release protrusion that protrudes from the front surface of the body housing, and comes into contact with the swash plate cam of the latch member to allow the latch member to slide toward the unlocked position in a case in which the front panel is closed with respect to the front surface of the body housing.
- According to the above-mentioned structure, in a case in which the front panel is closed with respect to the front surface of the body housing, the release protrusion comes into contact with the swash plate cam of the latch member and the latch member slides toward the unlocked position. For this reason, the openable/closable panel can be moved relative to the front panel between the closed position and the open position.
- In a case in which the front panel is opened with respect to the front surface of the body housing, the release protrusion is separated from the swash plate cam of the latch member and the latch member is made to slide toward the locked position by an urging force to be normally applied. For this reason, an operation for opening/closing the openable/closable panel with respect to the front panel is locked.
- According to this structure, the locking mechanisms included in the opening/closing mechanisms for the openable/closable panel can be made to have a simple and light structure.
- The air conditioner may further include a support lever that is rotatably provided on the front surface of the body housing and is bridged between the front panel and the front surface of the body housing to hold the front panel in an open state in a case in which the front panel is opened with respect to the front surface of the body housing.
- According to the above-mentioned structure, since the support lever is bridged in a state in which the front panel is opened, the front panel can be held in an open state. Accordingly, the workability of maintenance can be improved.
- In the air conditioner, a drawing hook, which draws the support lever to a functional position in a case in which the front panel is opened with respect to the front surface of the body housing, may be provided on the rear surface of the front panel.
- According to the above-mentioned structure, since the drawing hook provided on the rear surface of the front panel draws the support lever to the functional position in a case in which the front panel is opened, worker's efforts to draw the support lever can be reduced. Accordingly, the workability of maintenance can be improved.
- According to the air conditioner of the invention, as described above, the openable/closable panel provided on the front surface is opened so as to be tilted forward, the opening/closing mechanisms for the openable/closable panel can be made to have a simple and light structure, an opening angle of the upper portion of the openable/closable panel can be made large to allow the amount of sucked air to increase, and workability during maintenance work, which is to be performed in a state in which the openable/closable panel and the front panel are opened, can be improved.
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Fig. 1 is a perspective view of an air conditioner according to an embodiment of the invention. -
Fig. 2 is a perspective view of the air conditioner of which a front panel is opened. -
Fig. 3 is a side view of the air conditioner of which the front panel is closed. -
Fig. 4 is a side view of the air conditioner of which an openable/closable panel is opened. -
Fig. 5 is a side view of the air conditioner of which the front panel is opened. -
Fig. 6 is a perspective view of a front panel assembly viewed from a rear surface. -
Fig. 7 is an exploded perspective view of the front panel assembly viewed from the rear surface. -
Fig. 8 is a side view of an opening/closing mechanism.- (A) of
Fig. 9 is a side view of an opening/closing mechanism before a rack gear and a pinion gear mesh with each other and - (B) of
Fig. 9 is a side view of an opening/closing mechanism showing a state in which the rack gear and the pinion gear have meshed with each other.
- (A) of
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Fig. 10A is a front view of a locking mechanism of which latch members are present at a locked position. -
Fig. 10B is a front view of the locking mechanism of which the latch members are present at an unlocked position. -
Fig. 11 is a perspective view of the locking mechanism of which the latch members are present at the locked position. -
Fig. 12A is a longitudinal sectional view of the locking mechanism showing a state in which the front panel is closed and the latch members are present at the locked position by a longitudinal section taken along line XIIA-XIIA ofFig. 10A . -
Fig. 12B is a longitudinal sectional view of the locking mechanism showing a state in which the front panel is opened and the latch members are present at the unlocked position by a longitudinal section taken along line XIIB-XIIB ofFig. 10B . -
Fig. 13 is a side view of the air conditioner showing a state in which the front panel is opened and a support lever is bridged between. -
Fig. 14A is a diagram showing another embodiment of the support lever and is a side view of the air conditioner showing a state in which the front panel is closed. -
Fig. 14B is a diagram showing another embodiment of the support lever and is a side view of the air conditioner showing a state in which the front panel is opened and the support lever is bridged between. -
Fig. 15 is a perspective view of the support lever shown inFigs. 14A and 14B . -
Fig. 16 is an enlarged view of a portion XVI ofFig. 15 . -
Fig. 17 is a diagram viewed in the direction of an arrow XVII ofFig. 15 . - An embodiment of the invention will be described below with reference to the drawings.
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Figs. 1 to 5 show an air conditioner according to an embodiment of the invention. Theair conditioner 1 is installed indoors as an indoor unit of an air conditioning system that compresses a refrigerant to perform heating and cooling. Theair conditioner 1 includes arectangular body housing 2 that is molded with a resin, afront panel 3 that covers afront surface 2a of thebody housing 2, and an openable/closable panel 4 that serves as an appearance design surface mounted on thefront panel 3 to be capable of being opened and closed with respect to thefront panel 3. Thefront panel 3 and the openable/closable panel 4 form a front panel assembly 5 (see alsoFigs. 6 and7 ). The left and right side surfaces and the like of thebody housing 2 are covered with decorative cover members (not shown), so that an appearance is formed. - A plurality of
intake ports 7 and 8 are provided on thefront surface 2a and anupper surface 2b of thebody housing 2, and ablower fan 9, a heat exchanger (not shown), and the like are installed in the body housing 2 (seeFig. 2 ). Adischarge outlet 11 is provided on alower surface 2c of thebody housing 2. At the time of the heating and cooling operation, room air is sucked through theintake ports 7 and 8 by the operation of theblower fan 9 and this air exchanges heat with a cooled or heated refrigerant by passing through the heat exchanger and is discharged to a room from thedischarge outlet 11 as air-conditioned air for cooling or heating. Theintake ports 7 and 8 are provided with filters (not shown) that collect dust from sucked air. - As shown in
Figs. 2 to 4 and the like, thefront panel 3 is provided on thefront surface 2a of thebody housing 2 to be capable of being opened and closed with respect to thefront surface 2a of thebody housing 2. That is,hinge portions 13 are provided at both end portions of the upper side of thefront panel 3, and thefront panel 3 can be opened up about thehinge portions 13 as an axis. As shown inFigs. 2 ,6 , and7 , a plurality ofintake openings 15, which match the intake ports 7 of thebody housing 2 in a case in which thefront panel 3 is closed with respect to thefront surface 2a of thebody housing 2, are formed at thefront panel 3. - In a case in which the
front panel 3 is closed with respect to thefront surface 2a of thebody housing 2, latch hooks 16 (seeFigs. 2 ,3 , and5 to 7 ), which are provided near the left and right lower end portions of thefront panel 3, are inserted into hook insertion holes 17 (seeFig. 2 ) formed at thefront surface 2a of thebody housing 2 and are engaged with receiving-side hooks 18 (seeFig. 3 ) that are molded with a resin in the hook insertion holes 17 and has a substantially U-shape in side view. Since the receiving-side hooks 18 are elastically deformed in a case in which the latch hooks 16 are engaged with the receiving-side hooks 18, thefront panel 3 is closed with a click feeling. In a case in which the left and right lower end portions of thefront panel 3 are pulled with a predetermined force, the engagement of thehooks front panel 3 can be opened. - The openable/
closable panel 4 is operated to be opened and closed between aclosed position 4A (seeFigs. 2 ,3 , and5 ) where the openable/closable panel 4 overlaps the front side of thefront panel 3 and closes theintake openings 15 of thefront panel 3 and anopen position 4B (seeFigs. 1 and4 ) where the openable/closable panel 4 is opened forward so as to be tilted forward with respect to thefront panel 3. Opening/closing mechanisms 20, which open and close the openable/closable panel 4 between theclosed position 4A and theopen position 4B, are provided at both side portions of thefront panel 3 and the openable/closable panel 4. - As shown in
Fig. 4 and6 to 8 , and the like, the opening/closing mechanisms 20 include slide rails 21 that are provided on both side portions of thefront panel 3 and extend in a vertical direction, fixedpivot parts 22 that are provided above the slide rails 21, andsliders 23 are provided so as to be slidable along the slide rails 21. Theslider 23 is provided with amovable pivot part 24, and arack gear 25 is formed on the vertical side of theslider 23 facing thebody housing 2. - The opening/
closing mechanisms 20 includeupper pivot parts 26 andlower pivot parts 27 that are provided on both side portions of the openable/closable panel 4,upper links 28,lower links 29, andintermediate links 31. Theupper link 28 is connected to the fixedpivot part 22 and theupper pivot part 26, and thelower link 29 is connected between themovable pivot part 24 and thelower pivot part 27. Thelower link 29 is shorter than theupper link 28. In addition, theintermediate link 31 is connected to anintermediate pivot part 30, which is provided at the intermediate portion of theupper link 28, and themovable pivot part 24. - Moreover, drive
units 33, which drive the opening/closing mechanisms 20, are installed in thebody housing 2. As shown inFig. 4 , eachdrive unit 33 includes adrive motor 34 that is fixed to the side surface of, for example, thebody housing 2, afirst gear 35 that is provided on the rotating shaft of thedrive motor 34, asecond gear 36 that meshes with thefirst gear 35, athird gear 37 that is integrally provided on the back surface of thesecond gear 36, and apinion gear 38 that meshes with thethird gear 37. Thedrive unit 33 may be replaced with a servo motor where thedrive motor 34 and therespective gears 35 to 38 are integrated as a single body. - As shown in
Figs. 3 and4 , thepinion gear 38 of thedrive unit 33 is adapted to mesh with therack gear 25 in a case in which thefront panel 3 is closed with respect to thefront surface 2a of thebody housing 2. That is, in a case in which thefront panel 3 is opened as shown inFig. 5 , therack gear 25 is separated from thepinion gear 38 and the mesh of both thegears - At the time of the heating and cooling operation of the
air conditioner 1 having this structure, the pinion gears 38 of thedrive units 33 are rotated to push thesliders 23 up in a state in which thefront panel 3 is closed with respect to thefront surface 2a of thebody housing 2. Accordingly, theintermediate links 31, which are connected to themovable pivot parts 24 of thesliders 23, push the intermediate portions of theupper links 28, which connect the fixedpivot parts 22 of thebody housing 2 to theupper pivot parts 26 of the openable/closable panel 4, up. - For this reason, the
upper links 28 are rotated up, so that the upper portion of the openable/closable panel 4 having been placed at theclosed position 4A is separated from thefront panel 3 and the entire openable/closable panel 4 is raised up. Since the openable/closable panel 4 is raised up, thelower links 29 are rotated up and the lower portion of the openable/closable panel 4 is separated from thefront panel 3. Since thelower links 29 are shorter than theupper links 28, the openable/closable panel 4 is opened forward so as to be tilted forward with respect to thefront panel 3. Accordingly, the openable/closable panel 4 is placed at theopen position 4B. - According to this structure, since the length of the
upper link 28 is made longer than the length of thelower link 29, a large opening angle of the openable/closable panel 4 at theopen position 4B can be taken. Accordingly, since a large amount of room air is sucked through the intake ports 7 provided on thefront surface 2a of thebody housing 2, the amount of sucked air is increased. As a result, heating and cooling efficiency can be improved. On the other hand, in a case in which thelower link 29 is set to the required minimum length, the lower end portion of the openable/closable panel 4 is not significantly away from thefront surface 2a of thebody housing 2 at the time of opening of the openable/closable panel 4. Accordingly, it is possible to prevent air-conditioned air, which is to be discharged from thedischarge outlet 11, from being suddenly sucked to the intake ports. The opening/closing mechanisms 20 can be made to have a simple and light structure. - Since the
front panel 3 forms thefront panel assembly 5 together with the openable/closable panel 4 and thefront panel assembly 5 is opened up with respect to thefront surface 2a of thebody housing 2 as shown inFigs. 2 and5 , maintenance work, such as the cleaning and attachment/detachment of the filters of the intake ports 7 provided on thefront surface 2a of thebody housing 2 and the washing of the heat exchanger, can be performed. - In the
air conditioner 1, thedrive units 33 for the opening/closing mechanisms 20 for the openable/closable panel 4 are installed in thebody housing 2, and the pinion gears 38 of thedrive units 33 are adapted to mesh with the rack gears 25 in a case in which thefront panel 3 is closed with respect to thebody housing 2. - For this reason, in a case in which the
front panel 3 is opened up with respect to thefront surface 2a of thebody housing 2 together with the openable/closable panel 4 and the opening/closing mechanisms 20, theheavy drive units 33 remain in thebody housing 2. Accordingly, the weight of the entirefront panel 3 can be reduced, so that workability during maintenance work, which is to be performed in a state in which thefront panel 3 is opened, can be improved. - As shown in
Figs. 8 and9 , theslider 23 is relatively movable with respect to themovable pivot part 24 in a sliding direction thereof (a direction along the slide rail 21). For example, a rectangular slidinghole 41, which extends in the sliding direction, is perforated in theslider 23, and a slidingpiece 42 is slidably fitted to the slidinghole 41 and is provided with themovable pivot part 24. Substantially V-shaped buffers (urging portions) 42a and 42b are formed at both end portions of the slidingpiece 42 in the sliding direction, and thebuffers 42a elastically holdcenter plates hole 41 in the sliding direction and have rounded tip portions. - As shown in (A) of
Fig. 9 , theslider 23 is normally urged by the urging action of thebuffers piece 42, so as to be held at a neutral position C of a movement range thereof relative to themovable pivot part 24. Accordingly, in a case in which a relative force in the direction along theslide rail 21 is not applied between theslider 23 and the slidingpiece 42, the position of the central portion of the slidinghole 41 in a longitudinal direction matches the position of themovable pivot part 24 of the slidingpiece 42. - For example, in a case in which a force F for pushing the
slider 23 down is applied, theslider 23 is moved down relative to the position of the sliding piece 42 (movable pivot part 24) (neutral position C) by L as shown in (B) ofFig. 9 . In this case, theupper center plate 41a is caught between theupper buffers 42a of the slidingpiece 42 and theupper buffers 42a are pushed and spread. In a case in which the force F is removed, theupper center plate 41a is pushed out by the elastic forces of theupper buffers 42a and theslider 23 returns to the neutral position C. On the contrary, in a case in which a force for pushing theslider 23 up is applied, thelower center plate 41b is caught between thelower buffers 42b and the same action is exhibited by the elastic forces of thelower buffers 42b. - According to this structure, in a case in which the
front panel 3 is opened up with respect to thefront surface 2a of thebody housing 2 and is closed again, the positions of the teeth of therack gear 25 are made to match the positions of the teeth of thepinion gear 38 by the movement of therack gear 25 of theslider 23 relative to themovable pivot part 24 in the sliding direction even though the positions of the teeth of therack gear 25 of theslider 23 deviate from the positions of the teeth of thepinion gear 38 of the drive unit 33 (a synchronization action is exhibited). - For this reason, since the
rack gear 25 and thepinion gear 38 are made to reliably mesh with each other in a case in which thefront panel 3 is to be closed, thefront panel 3 can be smoothly closed and workability during maintenance work, which is to be performed in a state in which thefront panel 3 is opened, can be improved. - Locking
mechanisms 46 shown inFigs. 7 ,10A to 12B , and the like are provided between thefront panel 3 and the openable/closable panel 4. Eachlocking mechanism 46 is a mechanism that locks an operation for opening/closing the openable/closable panel 4 with respect to thefront panel 3 in a case in which thefront panel 3 is opened with respect to thefront surface 2a of thebody housing 2. - Each
locking mechanism 46 includes a hook through-hole 47 that is perforated in thefront panel 3, an annular hook 48 (see alsoFig. 4 ) that protrudes from the rear surface of the openable/closable panel 4 and is to be inserted into the hook through-hole 47 in a case in which the openable/closable panel 4 is placed at theclosed position 4A, a pair of left andright latch members 50 that is disposed on the rear surface of thefront panel 3, and a pair of left and right release protrusions 52 (see alsoFig. 5 ) that protrudes from thefront surface 2a of thebody housing 2. - As shown in
Figs. 7 and10A to 12B , eachlatch member 50 is a substantially cross-shaped small component molded with a resin, and is fitted to aslide guide 51 formed on the rear surface of thefront panel 3 and can slide in a vertical direction. A pair of left and rightleaf spring portions 50a, which horizontally protrudes, is formed on eachlatch member 50, and tips of the pair of left and rightleaf spring portions 50a are in contact withinclined surfaces 53a of a pair ofstoppers 53 formed on both sides of theslide guide 51. Theinclined surfaces 53a of both thestoppers 53 face each other, and approach each other toward the lower side. - As shown in
Figs. 10A ,11 , and12A , eachlatch member 50 can slide between a lockedposition 50A where atip portion 50b of thelatch member 50 protrudes so as to overlap the hook through-hole 47 and a position where thetip portion 50b does not overlap the hook through-hole 47 as shown inFigs. 10B and12B , that is, anunlocked position 50B that is present below the lockedposition 50A. At the lockedposition 50A, theleaf spring portions 50a extend linearly without being deformed and tips of theleaf spring portions 50a are in slight contact with theinclined surfaces 53a of thestoppers 53. At theunlocked position 50B, theleaf spring portions 50a are elastically deformed upward and the tips of theleaf spring portions 50a are in pressure contact with theinclined surfaces 53a of thestoppers 53. Thelatch member 50 is normally urged toward the lockedposition 50A by the urging force of theleaf spring portions 50a and theinclined surfaces 53a of thestoppers 53. That is, in a case in which thelatch member 50 is pushed down to theunlocked position 50B from the lockedposition 50A, theleaf spring portions 50a are elastically deformed and thelatch member 50 is returned to the lockedposition 50A by the reaction force of theleaf spring portions 50a. - A
swash plate cam 50c is formed on the back surface of thelatch member 50. The inclined surface of theswash plate cam 50c ascends toward theunlocked position 50B (lower side) from the lockedposition 50A of the latch member 50 (upper side). The sliding direction of thelatch member 50 may not necessarily be a vertical direction unlike in this embodiment, and may be a horizontal direction or another direction. - In a case in which the openable/
closable panel 4 is placed at theclosed position 4A, thefront panel 3 is opened with respect to thefront surface 2a of thebody housing 2, and a gap S between thefront panel 3 and thefront surface 2a of thebody housing 2 is increased as shown inFig. 12A , each of the pair of left and right release protrusions 52 protruding from thefront surface 2a of thebody housing 2 does not press theswash plate cam 50c of thelatch member 50. For this reason, since eachlatch member 50 is placed at the lockedposition 50A by the urging force of theleaf spring portions 50a and thetip portion 50b of eachlatch member 50 overlaps the hook through-hole 47, thetip portion 50b is inserted into an annular hole of theannular hook 48 inserted into the hook through-hole 47 (see alsoFig. 10A ). Accordingly, theannular hook 48 is not separated from the hook through-hole 47, so that the openable/closable panel 4 is locked at theclosed position 4A and cannot be moved to theopen position 4B. - In a case in which the openable/
closable panel 4 is placed at theclosed position 4A, thefront panel 3 is closed with respect to thefront surface 2a of thebody housing 2, and a gap between thefront panel 3 and thefront surface 2a of thebody housing 2 is reduced to Sa from S as shown inFig. 12B , each of the release protrusions 52 protruding from thefront surface 2a of thebody housing 2 comes into contact with theswash plate cam 50c of thelatch member 50 and presses theswash plate cam 50c. For this reason, since eachlatch member 50 is made to slide toward theunlocked position 50B by a distance H with a thrust force, which is generated by theswash plate cam 50c, and thetip portion 50b of eachlatch member 50 does not overlap the hook through-hole 47, thetip portion 50b is separated from the annular hole of the annular hook 48 (see alsoFig. 10B ). Accordingly, theannular hook 48 can be separated from the hook through-hole 47, so that the openable/closable panel 4 can be moved to theopen position 4B from theclosed position 4A. - Since the locking
mechanisms 46 having this structure are provided, an operation for opening/closing the openable/closable panel 4 with respect to thefront panel 3 is locked by the action of the lockingmechanisms 46 in a state in which thefront panel 3 is opened with respect to thefront surface 2a of thebody housing 2. For this reason, the openable/closable panel 4 is not moved alone with respect to thefront panel 3, and workability during maintenance work, which is to be performed in a state in which the front panel 3 (front panel assembly 5) is opened, can be improved. Moreover, thelocking mechanism 46 can be made to have a very simple and light structure. - As shown in
Figs. 2 ,5 , and13 , asupport lever 57 is provided on thefront surface 2a of thebody housing 2. Since thesupport lever 57 is provided so as to rotate up and down about ahinge portion 58 as an axis, thesupport lever 57 is placed at a position where thesupport lever 57 hangs down in a case in which the front panel 3 (front panel assembly 5) is closed (seeFigs. 2 and5 ) . - In a case in which the
front panel 3 is opened with respect to thefront surface 2a of thebody housing 2, thesupport lever 57 is rotated up as shown inFig. 13 and the tip of thesupport lever 57 is latched on a latch protrusion 59 (see alsoFigs. 7 ,10A , and10B ) formed on the rear surface of thefront panel 3. Accordingly, since thesupport lever 57 is bridged between thefront surface 2a of thebody housing 2 and thefront panel 3, thefront panel 3 is held in a state in which the front panel 3 (front panel assembly 5) is opened. - Since the
support lever 57 is provided, thefront panel 3 can be held in an open state. Accordingly, workability during maintenance work, which is to be performed in a state in which the front panel 3 (front panel assembly 5) is opened, can be significantly improved. Since thesupport lever 57 is stored along thefront surface 2a of thebody housing 2 in a case in which thesupport lever 57 is not in use, thesupport lever 57 can also be stored in a narrow space between thefront surface 2a of thebody housing 2 and thefront panel 3. Accordingly, thesupport lever 57 does not occupy a large space. -
Figs. 14A to 17 show another embodiment of the support lever. Since asupport lever 61 is provided on thefront surface 2a of thebody housing 2 so as to be freely rotatable about ahinge portion 62 as in the case of the above-mentionedsupport lever 57, thesupport lever 61 is stored along thefront surface 2a of thebody housing 2 in a posture where thesupport lever 61 faces up as shown inFig. 14A in a case in which thesupport lever 61 is not in use. Since adrawing hook 63 is provided on the rear surface of thefront panel 3, thedrawing hook 63 is latched on an upper end portion of thesupport lever 61 in a case in which thefront panel 3 is closed. - In a case in which the
front panel 3 is opened with respect to thefront surface 2a of thebody housing 2 as shown inFig. 14B , thesupport lever 61 is drawn to a functional position where thesupport lever 61 is tilted forward by thedrawing hook 63 provided on the rear surface of thefront panel 3. Since rotation-regulatingprotrusions 64 are provided at the base end portion of thesupport lever 61 as shown inFigs. 15 and16 , thesupport lever 61 is held at a predetermined angle. Since thesupport lever 61 is bridged between thefront surface 2a of thebody housing 2 and thefront panel 3, thefront panel 3 can be held in an open state. - In a case in which the
front panel 3 is closed, thesupport lever 61 is pushed by the rear surface of thefront panel 3 and is returned to a storage position where thesupport lever 61 is stored along thefront surface 2a of thebody housing 2. Positioningprotrusions 65, which protrude laterally, are provided on both sides of the base end portion of thesupport lever 61 as shown inFigs. 15 and17 , and thepositioning protrusions 65 are fitted to positioning recessedportions 66 formed at thehinge portion 62 in a case in which thesupport lever 61 is placed at the storage position. Accordingly, thesupport lever 61 is held at the storage position. For this reason, the natural rotation of thesupport lever 61 to the functional position or the generation of the abnormal noise, which is caused by resonance during the heating and cooling operation, is prevented. - According to the above-mentioned structure, since the
drawing hook 63 provided on the rear surface of thefront panel 3 draws thesupport lever 61 to the functional position in a case in which thefront panel 3 is opened, worker's efforts to draw thesupport lever 61 can be reduced. Accordingly, the workability of maintenance can be improved. - According to the
air conditioner 1 of this embodiment, as described above, the openable/closable panel 4 provided on the front surface is opened so as to be tilted forward, the opening/closing mechanisms 20 for the openable/closable panel 4 can be made to have a simple and light structure, an opening angle of the upper portion of the openable/closable panel 4 can be made large to allow the amount of sucked air to increase, and workability during maintenance work, which is to be performed in a state in which the openable/closable panel 4 and thefront panel 3 are opened, can be improved. - The invention is not limited to only the structure of the embodiment and can be appropriately modified within the scope of the invention as defined by the claims.
- For example, the position of each pivot part, the length and shape of each link, and the like of the opening/
closing mechanism 20 are not necessarily limited to those of the embodiment. Thedrive units 33 have only to be installed in thebody housing 2, and the structure and the like of thedrive unit 33 may be modified. -
- 1:
- air conditioner
- 2:
- body housing
- 2a:
- front surface of body housing
- 3:
- front panel
- 4:
- openable/closable panel
- 4A:
- closed position of openable/closable panel
- 4B:
- open position of openable/closable panel
- 13:
- hinge portion
- 15:
- intake opening
- 20:
- opening/closing mechanism
- 21:
- slide rail
- 22:
- fixed pivot part
- 23:
- slider
- 24:
- movable pivot part
- 25:
- rack gear
- 26:
- upper pivot part
- 27:
- lower pivot part
- 28:
- upper link
- 29:
- lower link
- 30:
- intermediate pivot part
- 31:
- intermediate link
- 33:
- drive unit
- 38:
- pinion gear
- 42a,
- 42b: buffer (urging portion)
- 46:
- locking mechanism
- 47:
- hook through-hole
- 48:
- annular hook
- 50:
- latch member
- 50A:
- locked position of latch member
- 50B:
- unlocked position of latch member
- 50b:
- tip portion of latch member
- 50c:
- swash plate cam
- 52:
- release protrusion
- 57:
- support lever
- 61:
- support lever
- 63:
- drawing hook
- C:
- neutral position
Claims (7)
- An air conditioner (1) comprising:a front panel (3) that is configured to cover a front surface (2a) of a body housing (2) and is openably and closably provided so as to be opened up about a hinge portion (13) provided at an upper side of the front panel (3) as an axis;characterized in that the air conditioner (1) further comprises:an openable/closable panel (4) that is mounted on the front panel (3) to be capable of being opened and closed with respect to the front panel (3); andopening/closing mechanisms (20) that are configured to open and close the openable/closable panel (4) between a closed position (4A) where the openable/closable panel (4) closes an intake opening (15) of the front panel (3) and an open position (4B) where the openable/closable panel (4) is opened forward so as to be tilted forward with respect to the front panel (3),wherein the opening/closing mechanisms (20) includeslide rails (21) that are provided on both side portions of the front panel (3) and extend in a vertical direction,fixed pivot parts (22) that are provided above the slide rails (21),sliders (23) that are provided so as to be slidable along the slide rails (21) and include movable pivot parts (24) and rack gears (25),upper pivot parts (26) and lower pivot parts (27) that are provided on both side portions of the openable/closable panel (4),upper links (28) that connect the fixed pivot parts (22) to the upper pivot parts (26),lower links (29) that connect the movable pivot parts (24) to the lower pivot parts (27) and are shorter than the upper links (28),intermediate links (31) that connect intermediate pivot parts (30), which are provided at intermediate portions of the upper links (28), to the movable pivot parts (24), anddrive units (33) that include pinion gears (38) meshing with the rack gears (25) of the sliders (23).
- The air conditioner (1) according to Claim 1,
wherein the drive units (33) are installed in the body housing (2), and the pinion gears (38) of the drive units (33) are configured to mesh with the rack gears (25) in a case in which the front panel (3) is closed with respect to the body housing (2). - The air conditioner (1) according to Claim 2,
wherein each slider (23) is relatively movable with respect to the movable pivot part (24) in a sliding direction of the slider (23), and is urged to a neutral position of a movement range thereof relative to the movable pivot part (24) by an urging portion. - The air conditioner (1) according to any one of Claims 1 to 3, further comprising:
locking mechanisms (46) that are configured to lock an operation for opening/closing the openable/closable panel (4) with respect to the front panel (3) in a case in which the front panel (3) is opened with respect to the front surface (2a) of the body housing (2). - The air conditioner (1) according to Claim 4,
wherein each of the locking mechanism (46) includesa hook through-hole (47) that is perforated in the front panel (3),an annular hook (48) that protrudes from a rear surface of the openable/closable panel (4) and is configured to be inserted into the hook through-hole (47) in a case in which the openable/closable panel (4) is placed at the closed position (4A),a latch member (50) that is provided on a rear surface of the front panel (3), is configured to slide between a locked position (50A) where a tip portion (50b) of the latch member (50) protrudes so as to overlap the hook through-hole (47) and an unlocked position (50) where the tip portion (50b) does not overlap the hook through-hole (47), includes a swash plate cam (50c) formed on a back surface thereof, and is normally urged toward the locked position (50A), anda release protrusion (52) that protrudes from the front surface of the body housing, and comes into contact with the swash plate cam of the latch member to allow the latch member to slide toward the unlocked position in a case in which the front panel (3) is closed with respect to the front surface of the body housing. - The air conditioner (1) according to any one of Claims 1 to 5, further comprising:
a support lever (61) that is rotatably provided on the front surface (2a) of the body housing (2) and is bridged between the front panel (3) and the front surface (2a) of the body housing (2) to hold the front panel (3) in an open state in a case in which the front panel (3) is opened with respect to the front surface (2a) of the body housing (2). - The air conditioner (1) according to Claim 6,
wherein a drawing hook (63), which is configured to draw the support lever (61) to a functional position in a case in which the front panel (3) is opened with respect to the front surface (2a) of the body housing (2), is provided on the rear surface of the front panel (3).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016029062A JP6359577B2 (en) | 2016-02-18 | 2016-02-18 | Air conditioner |
PCT/JP2017/005017 WO2017141839A1 (en) | 2016-02-18 | 2017-02-10 | Air conditioner |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3361174A1 EP3361174A1 (en) | 2018-08-15 |
EP3361174A4 EP3361174A4 (en) | 2018-10-24 |
EP3361174B1 true EP3361174B1 (en) | 2019-06-26 |
Family
ID=59625141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17753097.9A Active EP3361174B1 (en) | 2016-02-18 | 2017-02-10 | Air conditioner |
Country Status (6)
Country | Link |
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EP (1) | EP3361174B1 (en) |
JP (1) | JP6359577B2 (en) |
CN (1) | CN108351118A (en) |
AU (1) | AU2017220420B2 (en) |
ES (1) | ES2735499T3 (en) |
WO (1) | WO2017141839A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107588519A (en) * | 2017-09-21 | 2018-01-16 | 广东美的制冷设备有限公司 | Indoor apparatus of air conditioner and air conditioner |
WO2019065867A1 (en) * | 2017-09-27 | 2019-04-04 | ダイキン工業株式会社 | Air conditioner indoor unit |
JP6521129B1 (en) * | 2018-03-26 | 2019-05-29 | ダイキン工業株式会社 | Air conditioning indoor unit |
CN110345626B (en) * | 2019-07-19 | 2024-03-29 | 珠海格力电器股份有限公司 | Shell structure, control method and wall-mounted air conditioner |
CN112344434A (en) * | 2019-08-07 | 2021-02-09 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
CN110486796B (en) * | 2019-08-13 | 2021-08-24 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
CN111006309B (en) * | 2019-11-15 | 2022-04-19 | 海尔智家股份有限公司 | Air conditioner indoor unit and air conditioner |
CN110986162B (en) * | 2019-11-15 | 2021-11-23 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
CN110986160B (en) * | 2019-11-15 | 2022-01-21 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and air conditioner |
CN113237147B (en) * | 2021-05-13 | 2023-06-20 | 青岛海尔空调电子有限公司 | Air conditioner outdoor unit and installation method |
WO2023000572A1 (en) * | 2021-07-21 | 2023-01-26 | 芜湖美智空调设备有限公司 | First driving part for air conditioner and air conditioner provided with same |
CN114758558B (en) * | 2022-04-27 | 2023-01-31 | 上海华模科技有限公司 | Flight simulator |
DE102022111834A1 (en) * | 2022-05-11 | 2023-11-16 | Berbel Ablufttechnik Gmbh | Wall box |
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-
2017
- 2017-02-10 AU AU2017220420A patent/AU2017220420B2/en active Active
- 2017-02-10 WO PCT/JP2017/005017 patent/WO2017141839A1/en active Application Filing
- 2017-02-10 EP EP17753097.9A patent/EP3361174B1/en active Active
- 2017-02-10 CN CN201780003767.1A patent/CN108351118A/en active Pending
- 2017-02-10 ES ES17753097T patent/ES2735499T3/en active Active
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Also Published As
Publication number | Publication date |
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AU2017220420A1 (en) | 2018-05-17 |
ES2735499T3 (en) | 2019-12-19 |
CN108351118A (en) | 2018-07-31 |
EP3361174A1 (en) | 2018-08-15 |
EP3361174A4 (en) | 2018-10-24 |
WO2017141839A1 (en) | 2017-08-24 |
JP2017146046A (en) | 2017-08-24 |
AU2017220420B2 (en) | 2019-04-18 |
JP6359577B2 (en) | 2018-07-18 |
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