CN101493249A

CN101493249A - Indoor unit of air conditioner and method for controlling the same

Info

Publication number: CN101493249A
Application number: CNA200810174487XA
Authority: CN
Inventors: 郑昌勋
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2008-01-21
Filing date: 2008-11-07
Publication date: 2009-07-29
Anticipated expiration: 2028-11-07
Also published as: EP2080958A2; KR20090080304A; KR100946652B1; CN101493249B; EP2080958B1; EP2080958A3

Abstract

Provided are an indoor unit of a ceiling cassette air conditioner provided with a grill elevating unit (600), and a method for controlling a grill elevating unit. A user can thus lower an intake grill to a suitable height to easily perform filter cleaning/replacement.

Description

Air conditioner indoor unit and control method thereof

Cross reference to related application

The application is according to the priority of 35U.S.C.119 and 35U.S.C.365 requirement korean patent application No.10-2008-0006190 (submission on January 21st, 2008), and integral body is incorporated in this to this application by reference.

Technical field

The disclosure relates to a kind of indoor unit that is provided with the embedded air-conditioning of ceiling of grid lift unit, and the method that is used to control the grid lift unit.

Background technology

Usually, air-conditioning is a kind of cooling/heating systems, it aspirates room air, and after air experience and cold-producing medium heat exchange the air that is aspirated is discharged back in the indoor environment, and air-conditioning is a kind of equipment that utilizes compressor-condenser-expansion valve-evaporimeter to form kind of refrigeration cycle simultaneously.

Particularly, air-conditioning quilt is separated at the outdoor unit of outdoor mounted and the indoor unit of installing at interior of building.Particularly, condenser and compressor are installed in outdoor unit, and vaporising device is installed in indoor unit.

As general knowledge, air-conditioning can be divided into branch system formula air-conditioning and integral type air-conditioning substantially, this minute system formula air-conditioning have outdoor unit and the indoor unit that is installed separately, this integral type air-conditioning has outdoor unit and the indoor unit that one is installed.

Recently, the multiple-unit air-conditioning just is widely used, and an outdoor unit of this air-conditioning is connected to a plurality of indoor units, and wherein indoor unit is installed in the different interior spaces respectively.

Fig. 1 is the decomposition diagram that is used for according to the indoor unit of the embedded air-conditioning of ceiling of correlation technique.

With reference to figure 1, be used for indoor unit 1 according to the embedded air-conditioning of ceiling of correlation technique and be installed into and make its main body be inserted and secured ceiling, and export and import partly is exposed to indoor environment.

Particularly, indoor unit 1 comprise the casing 30 that constitutes its outer shape, limit the bottom surface section of casing 30 front panel 10, be located at front panel 10 the center in order to the top surface of the air-inlet grille 20 of suction room air and sealed enclosure 30 and make indoor unit 1 can be fixed to the base portion 40 of ceiling simultaneously.

Particularly, outlet 12 four edges' formation of plate 10 in front.By the room air experience heat exchange that air-inlet grille 20 is sucked, after this, it is discharged back in the indoor environment by exporting 12.Air director 90 is located at the air stream of the top of front panel 10 with the heat exchange of guiding experience.And shutter 14 can form in outlet 12 with the control air and be discharged into direction in the indoor environment.Air cleaner 50 is located at the top of air-inlet grille 20.The indoor air filtration impurity of air cleaner 50 from being sucked.

Drain pan 60 is installed in the condensed water of the top of above-mentioned front panel 10 with condensation on the surface that is collected in indoor heat converter 70.And through hole forms in the center of drain pan 60, and aperture 66 is inserted in this through hole.The room air that aperture 66 guiding are sucked flows towards the middle body of indoor fan 80.Indoor fan 80 is rotated by fan motor assembly 82, and this fan motor assembly 82 produces revolving force when energising.

Yet, in the correlation technique of above configuration, have following intrinsic restriction.

Particularly, because be installed in the ceiling according to the indoor unit 1 of the air-conditioning of correlation technique, in order to remove impurity from air cleaner 50, the user must use ladder to open air-inlet grille 20, after this must dismounting air cleaner 50.

Correspondingly, the cleaning of air cleaner 50 and replacing and be not easy.

And, when air-inlet grille 20 is opened, air cleaner 50 often takes place drop into user's accident on one's body.

Summary of the invention

Embodiment provides a kind of air conditioner indoor unit, and it can raise and reduce air-inlet grille with convenient for cleaning and replacing air cleaner.

Embodiment also provides a kind of air conditioner indoor unit, and it has the grid lift unit of modularization and minification, does not use independent installation module so that can on existing indoor unit the grid lift unit be installed.

Embodiment also provides a kind of air conditioner indoor unit, and it makes the user grid lift unit optionally to be installed in possible its lowest position, to be convenient for changing and the clean air filter.

Embodiment further provides a kind of method that is used to control air conditioner indoor unit, and its carries out the reduction that control automatically stops air-inlet grille when having barrier in reducing the path, thus enhancing user's convenience and security.

In one embodiment, a kind of air conditioner indoor unit comprises: the main body with heat exchanger and indoor fan; Be connected to the air-inlet grille of the basal surface of main body movably; Installed filters on the top surface of air-inlet grille; Be located at the aperture of flowing of the room air that is introduced into guiding in the main body; Be located at the front panel of below, aperture, this air-inlet grille closely contacts the inboard of front panel; Be used to detect a plurality of tight contact detection unit whether air-inlet grille closely contacts front panel; And be located at a plurality of grid lift units to allow air-inlet grille to raise or reduce between aperture and the front panel, wherein said lift unit comprises: the lifting external member that produces revolving force; And first end be connected to air-inlet grille and second end is connected to the metal wire that promotes external member.

In another embodiment, a kind of method that is used to control air conditioner indoor unit, this method comprises: the input air-inlet grille reduces order; Reduce air-inlet grille according to reducing order; Air-inlet grille is stopped at a position; By the automatic reduction length of air-inlet grille being set through preset time or the signalization by the input controller.

In a further embodiment, a kind of method that is used to control air conditioner indoor unit, this method comprises: input filter cleaning/replacing order; Reduce air-inlet grille; Air-inlet grille is stopped at automatic rest position; The input air-inlet grille of the air-inlet grille order that raises that is used to raise; And whether definite air-inlet grille turns back to normal condition.

In the air conditioner indoor unit that as above disposes according to the disclosure, can realize following effect.

By the modular and compact grid lift unit that can raise and reduce air-inlet grille is provided, the size of indoor unit can be minimized, and can strengthens user's convenience.

And, because the user is endowed the ability of setting maximum dropping distance for the grid lift unit,, and then can effectively carry out the replacing or the cleaning of filter at the optimum height place so user's height or setting height(from bottom) are not construed as limiting.

And, if when grid just is lowered, in the air-inlet grille travel path, have barrier, thereby then automatically stop to reduce the raising security.

And, being used for the whether sealed unit of sensing air-inlet grille by comprising, and comprising and be used for the unit that sensing is connected to the metal wire tension force of air-inlet grille, user's convenience can be strengthened.That is, because side by side whether the sensing air-inlet grille is inserted exactly, whether air-inlet grille is loosening, and whether have the interference between air-inlet grille and the barrier, user's convenience is strengthened and can avoid indoor unit to break down.

In accompanying drawing below and the explanation details of one or more embodiment is set forth.According to explanation and accompanying drawing and according to claim, other feature will be tangible.

Description of drawings

Fig. 1 is the decomposition diagram that is used for according to the indoor unit of the embedded air-conditioning of ceiling of correlation technique;

Fig. 2 is the decomposition diagram according to the mounted indoor unit that is provided with the grid lift unit of disclosure embodiment;

Fig. 3 is the decomposition diagram according to the air-conditioning that is provided with the grid lift unit of disclosure embodiment;

Fig. 4 illustrates the fragmentary, perspective view of lifting external member of being installed to the grid lift unit of front panel according to the configuration of disclosure embodiment;

Fig. 5 is shown specifically the decomposition diagram that promotes external member;

Fig. 6 illustrates according to the operation of passing through the grid lift unit of disclosure embodiment and the cross sectional view of the air-inlet grille that separates from front panel;

Fig. 7 is the cross sectional view that illustrates by the air-inlet grille that seals with respect to front panel;

Fig. 8 is the flow chart of the control method that dips of grid lift unit that is used to be provided with air conditioner indoor unit that illustrates according to disclosure embodiment;

Fig. 9 is the flow chart of describing according to disclosure embodiment of the accurate adjustment process that dips that is used to be provided with air-inlet grille;

Figure 10 is the flow chart of process of filter that is used to clean/change air conditioner indoor unit that illustrates according to disclosure embodiment.

The specific embodiment

To introduce air conditioner indoor unit and control method thereof according to disclosure embodiment now in detail, the example is shown in the drawings.

Fig. 2 is the decomposition diagram according to the mounted indoor unit that is provided with the grid lift unit of disclosure embodiment, and Fig. 3 is the decomposition diagram according to the air-conditioning that is provided with the grid lift unit of disclosure embodiment.

With reference to figure 2 and 3, has the lower surface that inserts and be fixed to the top of ceiling inside and be exposed to the interior space according to the indoor unit 100 of disclosure embodiment.

Particularly, indoor unit 100 comprise the front panel 400 that constitutes its outer lower face, in front the center of plate 400 install with room air from the interior space be drawn into air-inlet grille 120 indoor unit 100, to constitute the top of indoor unit 100 outside and have the casing 130 of a plurality of build-in components, and the top surface of sealed enclosure 130 and side by side be supported on the base portion 140 (in Fig. 3) of a plurality of parts of installing in the indoor unit 100.

Installing hole 402 is located in the middle body of front panel 400.Air-inlet grille 120 is installed, and room air flows into by air-inlet grille 120 in installing hole 402.And the air cleaner (not shown) can be installed on the top surface of air-inlet grille 120 with from air filtration impurity.

Particularly, air-inlet grille 120 is carried out the function that the guiding room air enters indoor unit 100, and defines air admission hole 122 for this purpose therein.

And plate 400 is front/rear and left in front/and right place forms rectangle outlet 404 respectively.Outlet 404 is used for guiding the room air that is sucked into indoor unit 100 by air-inlet grille 120 to return in the interior space.

And console switch 406 is located on the side of front panel 400.When indoor unit 100 becomes can not be by remote controller 300 control the time, console switch 406 allows users directly to control indoor unit 100.Particularly, console switch 406 has a plurality of buttons, and these buttons not only comprise the on of the operation that is used for indoor unit 100, but also can force to raise and reduce grid lift unit 600.

Can alarm unit be set dividually with console switch 406.Alarm unit allows the user to check the mode of operation of indoor unit, and may be implemented as and send versicolor lamp or buzzer.

Shutter 520 can be rotatably installed in the outlet 404, is discharged into the flow direction of room air with the control air.

Drain pan 150 is located at the top of front panel 400.Drain pan 150 is arranged for collecting the condensed water that produces on the surface of indoor heat converter 160, and the generation of this condensed water is to cause owing to the temperature difference that the cold-producing medium that flows through indoor heat converter 160 inside and the heat exchange between the room air form.Particularly, condensed water space 152 forms on the top surface of drain pan 150 recessedly, to be used to collect condensed water.

In the middle body of drain pan 150, define through hole 154.Therefore, the room air that is sucked raises by air-inlet grille 120 and through hole 154.

And casing 130 is formed by a plurality of plates that are coupled together, with outer surface that constitutes indoor unit 100 and the inside that seals indoor unit 100.

The installation bracket 132 that is connected to the bottom of installation component (F) is given prominence to from the edge of casing 130.And panel bracket 136 is outstanding from the below of installation bracket 132.Fastener hole 137 forms and passes panel bracket 136 therefrom to insert screw or other securing member.The lower end of casing 130 is coupled to front panel 400, and top is coupled to the lower surface of base portion 140.

The inside of drain pan 150 is located in aperture 180.Aperture 180 guiding room airs enter in the indoor unit, and limit bullport 182 therein.

Pdp filter device 190 can be installed in a side of the lower surface in aperture 180.Particularly, pdp filter device 190 produces plasma, and airborne pollutant is adsorbed in plasma.

Control cabinet 196 is located at the lower right surface in aperture 180 and is sentenced the operation of controlling indoor unit 100.

And grid lift unit 600 is located at the below in hole 180.Particularly, grid lift unit 600 is configured to optionally raise or reduce air-inlet grille 120, and this will be discussed in more detail below.

Remote controller 300 can be located on the wall of the interior space that indoor unit 100 wherein is installed.Remote controller 300 can be connected to control cabinet 196 or can be launched/receive wireless signal by electric wire (L).Particularly, if remote controller 300 connects via electric wire (L), then electric wire (L) can be embedded in the wall of the interior space and be connected to the inside of remote controller 300.

As mentioned above, indoor heat converter 160 is installed in the top of drain pan 150.Indoor heat converter 160 is used for the room air that is filtered by air cleaner is carried out heat exchange, and mobile in indoor heat converter 160 with the cold-producing medium of room air heat exchange.

And indoor heat converter 160 is bent repeatedly to form roughly foursquare shape when observing from the top.Therefore, upwards the room air by through hole 154 upwards spread and with indoor heat converter 160 heat exchanges.

And air director 142 is located at the outside of indoor heat converter 160.Air director 142 surrounds the outer surface of indoor heat converter 160, thereby does not reveal from the outside of casing 130 with the air of cold-producing medium heat exchange.

And indoor fan 170 is installed in the inside center place of casing 130.Indoor fan 170 is driven by fan motor 172, and fan motor 172 produces revolving force when being energized.Indoor fan 170 can be along the axial direction suction air and along the centrifugal fan of radial direction discharged air, and can be turbofan in one embodiment.That is, the air that rises by through hole 154 is flatly discharged to pass through indoor heat converter 160 by indoor fan 170.

The grid lift unit 600 of air-inlet grille 120 of being used for optionally raising/reduce is installed in the top surface place of the lower surface or the front panel 400 in aperture 180.And the metal wire 640 that comprises in grid lift unit 600 is connected to the marginal portion of air-inlet grille 120.By reeling or launching metal wire 640, air-inlet grille 120 is raised or reduces.Be connected respectively to four bights of air-inlet grille 120 by the end with wire rod 640, air-inlet grille 120 can be lowered and raise and keep horizontally disposed simultaneously.Here, with air-inlet grille 120 and drive the parts that parts that the driver element of air-inlet grille 120 separates can be considered main body.

Below, will provide the detailed description of the configuration of grid lift unit with reference to Figure 4 and 5.

Fig. 4 illustrates the fragmentary, perspective view of lifting external member of being installed to the grid lift unit of front panel according to the configuration of embodiment of the present disclosure, and Fig. 5 is shown specifically the decomposition diagram that promotes external member.

With reference to Figure 4 and 5, grid lift unit 600 is placed between front panel 400 and the aperture 180.That is, the lifting external member 620 that forms grid lift unit 600 can be fixed to the inward flange part on the upper surface of front panel 400.Certainly, it can alternately be fixed and be installed to the lower surface in aperture 180.The following examples will promote external member 620 and be described as the inward flange part that is fixed to front panel 400.

Particularly, grid lift unit 600 comprises metal wire 640, is used for the lifting external member 620 of wound skein product 640 optionally and is used for promoting the tool tray 660 that external member 620 is fixed to aperture 180 or front panel 400.

Wire rod 640 can be configured to have

Diameter and in 1 minute, bear the tensile strength of 3kgf at least.This is to suppose that the air-inlet grille 120 that air cleaner is installed on it has the weight of 2kg, and can change wire rod 640 according to the weight of air-inlet grille 120.

Tool tray 660 is located at the edge part office that promotes external member 620.Tool tray 660 is configured to be fixed to the lower surface in aperture 180 or the top surface of front panel 400 with promoting external member 620.Correspondingly, according to the position that promotes external member 620 is installed, determine the installation site of tool tray 660 in aperture 180 and front panel 400.That is, tool tray 660 can be installed in a side at the place, top that promotes external member 620 or a side of locating in its underpart.

In tool tray 660, form a plurality of jacks 662 to insert securing member.

Be provided for detecting the tension detection unit 670 whether tension force on the surface of plate in front is applied to wire rod 640 at the opposite side place that promotes external member 620.Tension detection unit 670 can be a microswitch, and perpendicular to and with wire rod 640 microswitch pressing part 671 is installed in contact.

Correspondingly, when wire rod 640 was stretched, the pressing part 671 of tension detection unit 670 was unlocked, and 670 pairs of tension detection unit promote external member 620 power supplies with operation grid lift unit 600.

On the contrary, when air-inlet grille 120 or air cleaner are removed or barrier causes that thereby air-inlet grille 120 raises wire rods 640 when becoming lax from wire rod 640, the pressing part 671 of tension detection unit 670 is closed, and grid lift unit 600 is not operated.

And grid lift unit 600 is configured to make that air-inlet grille 120 is pressed in the import 402 fully, and indoor unit 100 can be operated.

For this purpose, contact detection unit 680 can be located on the lower surface of front panel 400, perhaps is equipped with on the surperficial facing surfaces that promotes external member 600 on it.Especially, contact detection unit 680 as tension detection unit 670, can be a microswitch, and the pressing part of contact detection unit 680 is provided with towards air-inlet grille 120.

And, a plurality of contact detection unit 680 can be set, they are fixed to the bight on the top surface of front panel 400 respectively.In other words, four contact detection unit can be installed to the top surface of front panel 400 respectively.

Correspondingly, when air-inlet grille 120 was raised, whether contact detection unit 680 detected and exists and the contacting of the bight of air-inlet grille 120, thereby can determine whether air-inlet grille 120 correctly is pressed in the import 402.

Here, even in the time can not detecting with the contacting of air-inlet grille 120 for one in this a plurality of contact detection unit 680, also is defined as air-inlet grille 120 and is not flatly inserted as yet, and indoor unit 100 is not operated.The operation of tension detection unit 670 and contact detection unit 680 is shown in detail in Fig. 6 and 7.

As shown in Figure 5, wire rod 640 is stored in the inside that promotes external member 620 in reeling condition.And when promoting external member 620 expansion wire rods 640, air-inlet grille 120 is reduced from front panel 400.

Promote external member 620 its outside is formed by hexahedron external member case 622, and in the outer surface of external member case 622, form a plurality of fastener holes 626 with fastened tools carriage 660.

Produce the driver element 632 of revolving force and be connected to driver element 632 is accommodated in external member case 622 with the roller units 634 that is used for wound skein product 640 inside.Lifting controller 628 is located at an operation of upward being located at the driver element 632 in the lifting external member 620 with control respectively in a pair of lifting external member 620.That is, a lifting controller 628 is controlled a plurality of driver elements 632 that are contained in respectively in the external member case 622.

Particularly, when at indoor unit 100 operating periods manipulation remote controller 300, promote controller 628 control driver elements 632 and do not operate.And, when the rotation of indoor fan 170 surpasses 150rpm, promote the operation that controller 628 can be configured to limit driver element 632.Correspondingly, when driver element 632 operations, the rotation of indoor fan 170 is restricted.This can be avoided damaging indoor unit 100 and the user is provided security.

And, as user during, promote the test operation that controller 628 allows to carry out indoor units 100 at the situation lower-pilot remote controller 300 that air-inlet grille 120 is opened.This is in order to be lowered at air-inlet grille 120 to allow the built-in function of indoor unit 100 is checked during the maintenance indoor unit 100.

Driver element 632 can be a motor, and this motor produces revolving force when being powered, and roller units 634 axially is connected to driver element 632 at the place, front portion of driver element 632.Therefore, wire rod 640 is reeled around the neighboring of roller units 634.

The front end of roller units 634 can be provided with length detection unit 636.Particularly, length detection unit 636 detects the length of run of wire rod 640 corresponding to the revolution of roller units 634.For this reason, length detection unit 636 can comprise: the long measure body 637 of cylindricality forms jog 638 around its neighboring; And detection bodies 639, when long measure body 637 when rotated optionally during engagement concavity protuberance 638, it provides the information of the quantity of the jog 638 that has been touched for promoting controller 628.And length detection unit 636 can be integrally connected to roller units 634.And.By making detection bodies 639 produce bias voltage along the pivot direction of long measure body 637, it can be maintained in the state on surface of engagement concavity protuberance 638.

And driver element 632 and roller units 634 are built in the above-mentioned external member case 622.External member case 622 comprises casing 623, and the case lid 624 that covers the open top surface of casing 623.Correspondingly, because external member case 622, driver element 632, roller units 634 and lifting controller 628 are not exposed to the outside.

Form through hole 629 to be used to that wire rod 640 is passed through in the center of external member case 622.

Promote the operation of controller 628 control driver elements 632, and be installed into the inwall of external member case 622 and separate.In one embodiment, promote the inwall that controller 628 can be installed into external member case 622 and separate 8mm.Thereby this is to get an electric shock in order to be avoided electric current to be applied to lifting controller 628 from 622 leakages of external member case, and prevents to damage other parts.And as mentioned above, lifting controller 628 can be installed into via electric wire or wirelessly be connected to remote controller 300.

Promote controller 628 and can be configured to be attached to console switch 406, optionally use this console switch 406 when operational orders indoor unit 100, by remote controller 300 inputs can not be performed when being used to operate.

Remote controller 300 can be provided individually, and with the operation of control grid lift unit 600, perhaps, the remote controller 300 that is used to control indoor unit 100 can be provided with the button that also is used to control grid lift unit 600.

Fig. 6 illustrates according to the operation of passing through the grid lift unit of embodiment of the present disclosure and the cross sectional view of the air-inlet grille that separates with front panel, and Fig. 7 is the cross sectional view that the air-inlet grille sealed with respect to front panel is shown.

With reference to figure 6 and 7, when the wire rod 640 that forms grid lift unit 600 is tightened up, the state that the pressing part maintenance that forms at tension detection unit 670 sidepiece places is depressed.When air-inlet grille 120 separated with front panel 400, the pressing part of contact detection unit 680 launched (with reference to figure 6).On the contrary, when air-inlet grille 120 contacts fully with front panel 400, the pressing part of contact detection unit 680 be depressed (with reference to figure 7).

Below, reference flow sheet is elaborated to the method that is used to control the grid lift unit.

Fig. 8 is the flow chart of the control method that dips of grid lift unit that is used to be provided with air conditioner indoor unit that illustrates according to embodiment of the present disclosure.

With reference to figure 8, when making the indoor unit of air-conditioning, the default reduction length that is used for the air-inlet grille of cleaning and filtering.That is, product is manufactured into the feasible development length that forms the wire rod 640 of grid lift unit 600 and is set as referential data.

In this case, existence is regulated the needs of the reduction length of air-inlet grille 120 once more according to the height of the ceiling that indoor unit 100 is installed on it and user's height.Use description to regulate the method for the reduction length (length between ceiling and air inlet grid) of air-inlet grille 120 below.

At first, the user uses the menu button input be located on the remote controller 300 to be used to be provided with the operational order (being known as the air-inlet grille setup menu) of the reduction length of air inlet grid.Here, remote controller 300 can be provided with independent menu button, is used to be provided with the dropping distance of air-inlet grille 120 to change or cleaning and filtering.Alternately, the user can use the reduction length of the reduction/rising button settings air-inlet grille of air-inlet grille 120.

Order is transfused to or air-inlet grille reduction button is depressed in case reduction length is provided with, and then driver element 632 operations are to reduce air-inlet grille 120 (S120) under predetermined speed.At this moment, whether the controller order that is identified for stopping air-inlet grille 120 is transfused to (S130).

In further detail, when input was ceased and desisted order during reducing air-inlet grille 120, air-inlet grille stopped to be lowered (S140).Here whether, not only determining to cease and desist order is transfused to, but also determines whether air-inlet grille 120 runs into barrier and whether air-inlet grille 120 reaches dropping distance (roughly 4.5m) default when manufacturing a product.In further detail, detect air-inlet grille 120 by " closing (off) " of being located at the switch on the tension detection unit 670 and meet with barrier.That is, even because driver element 632 also continues operation when air-inlet grille 120 runs into barrier, so wire rod is lax to close the switch of tension detection unit 670.

When air-inlet grille 120 ran into barrier or reach the reduction length of initial setting, air-inlet grille 120 stopped to be lowered (S220).At this moment, when air-inlet grille 120 ran into barrier during reducing, air-inlet grille 120 stopped in this position or driver element 632 is raised controller 628 reverse rotations.For example, by promoting the reverse rotation of controller 628, can in several seconds time, raise once more one section predetermined length and topping out subsequently of air-inlet grille 120.

When air-inlet grille 120 stopped to be lowered, the user carried out the accurate adjustment process to be used to be provided with the automatic stop position (S150) of air-inlet grille 120.

In further detail, in the accurate adjustment process, the user raises/stops by air-inlet grille 120 is carried out repeatedly/reduction process and air-inlet grille 120 is adjusted to the optimum position.The accurate adjustment process will be described afterwards in further detail.

After the accurate adjustment process was finished, the user imported signalization (S160) at last.The input signalization is to set the reduction length of air-inlet grille 120 by input command in order to the state that is arranged in the optimum height place at air-inlet grille 120.For example, can by the user depressed stop button several seconds or at the fixed time in depress stop button and import signalization several times.Alternately, can depress the independent button of being located on the remote controller 300 by the user and import signalization.Can unrestrictedly be provided for importing the method for signalization by different way.When signalization was not transfused to, the accurate adjustment process was carried out repeatedly.

On the other hand, even when stopping to be lowered at air-inlet grille 120 and after the scheduled time passed, when the accurate adjustment process is not carried out by the user yet (S190), controller is made as the current location of air-inlet grille 120 stop position of the air-inlet grille that just is being lowered.

When the manipulation by the user finishes the reduction length setting of air-inlet grille 120 and the scheduled time when passing (S170), this process is finished.Correspondingly, when expectation cleaning/replacing filter, air-inlet grille 120 stops after length is set being lowered.Then, the user separates and cleaning or replacing installed filters on air-inlet grille 120.

Even when stopping after air-inlet grille 120 runs into barrier or has been lowered initial setting up reduction length, this process also enters accurate adjustment process S150.Here, the development length of wire rod 640 is calculated in the operation of long measure body 637 by constituting length detection unit 636 and detection bodies 639.

Fig. 9 is the flow chart of describing according to embodiment of the present disclosure of the accurate adjustment process that dips that is used to be provided with air-inlet grille.

With reference to figure 9, when air-inlet grille 120 during owing to any being stopped in three kinds of reasons describing with reference to figure 8, the user can be reduced to optimum height with air-inlet grille by the accurate adjustment process.

In further detail, the user can carry out the accurate adjustment process by the rising/reduction order of input air-inlet grille 120 in the state that stops at air-inlet grille 120.The rising of air-inlet grille 120 and reduction order can be transfused to by depressed independent rising/reduction button of being located on the remote controller by the user.

At first, determine whether the user imports the air-inlet grille rising or reduce order.In this embodiment, determine at first whether the user imports the order that raises.

That is, controller determines whether the user imports air-inlet grille rising order (S151).When definite user imported the rising order, air-inlet grille was raised (S152).During rising air-inlet grille 120, determine whether to import cease and desist order (S153).When input was ceased and desisted order, air-inlet grille stopped to rise (S154), and whether definite signalization is transfused to (S160).When signalization was transfused to, the position of the air-inlet grille 120 of this moment was set as automatic stop position.On the other hand, when not having signalization to be transfused to, the accurate adjustment process promptly, is used to wait for that input raises or the process of reduction order, is carried out repeatedly.Subsequently, when the input signalization, current location is set as the automatic stop position of the air-inlet grille 120 that just is being lowered.Therefore, when user input filter cleaning/replacing when order afterwards, air-inlet grille 120 automatically is reduced to stop position.

When the order that do not raise is transfused to, determines to reduce order and whether be transfused to (S155).When input reduced order, air-inlet grille was reduced once more, and in the meantime, when input is ceased and desisted order (S157), air-inlet grille stops in the current position reducing and this current location is set as automatic stop position.

And.When raising and reducing order and be not transfused to that the scheduled time has passed in state, current location can automatically be made as automatically dip (S180).

In addition, the length that dips automatically when the arrival of being set by the user is during less than pre-set length when manufacturing a product, and this preset length can be set as automatic reduction length.On the other hand, the length that dips automatically when the arrival of being set by the user is during greater than preset length, and the length of being set by the user can be set as automatic reduction length.

Figure 10 is the flow chart of process of filter that is used to clean/change air conditioner indoor unit that illustrates according to embodiment of the present disclosure.

With reference to Figure 10, when after reducing length automatically by process settings with reference to figure 8 and 9 descriptions, during user's input filter cleaning/replacing order (S210), air-inlet grille is automatically reduced automatically reduces length (that is, being reduced to automatic stop position) (S220).Air-inlet grille stops (S230) in automatic rest position.In this state, filter is cleaned or changes.When during air-inlet grille 120 is being lowered, running into barrier, such as with reference to figure 8 description ground, air-inlet grille 120 stops.For example, air-inlet grille 120 may be run into user's head during being lowered.In this case, air-inlet grille 120 stops to be lowered.

Here, in the moment of user's input filter cleaning/replacing order,, can produce alarm signal by promoting controller 628 or indoor unit controller when indoor unit just is being driven or the RPM of indoor fan 170 is higher than when RPM is set.On the other hand, when grid lift unit 600 was being operated, the operation of indoor fan 170 was restricted.Yet after being lowered, for test running, indoor fan 170 can be operated in the state that grid lift unit 600 stops.

Alarm signal can be beeping sound or light.As mentioned above, limit cleaning filtration/more change jobs in the state that rotates under the RPM that RPM is set, can prevent the accident relevant and can discharge clean air from air-conditioning with security by being higher than at indoor fan 170.

The user carries out cleaning filtration/more change jobs in air-inlet grille 120 is lowered to the state of automatic stop position.And.When filter clean/more changes jobs when finishing, the user imports the grid order that raises.

In further detail, controller (indoor unit controller or promote in the controller 628 one) determines whether the air-inlet grille order that raises is transfused to (S240).At this moment, be used for determining as a kind of whether air-inlet grille 120 turns back to the method for normal condition, the execution number of times of the process that is used to guide air-inlet grille 120 to reach normal condition is counted as parameter n, and its numerical value is reset and is " 0 ".Subsequently, air-inlet grille 120 is raised (S260).

Here, when the input air-inlet grille raise order, tension detection unit 670 detected and is applied to the tension force of wire rod 640, thereby can determine whether filter or air-inlet grille 120 separate with wire rod 640.In further detail, when filter and/or air-inlet grille 120 separates with wire rod 640 and the tension force of therefore determining to be applied to wire rod 640 during less than default tension force, promote controller 638 or indoor unit controller and cut off for the power supply of driver element 632 and produce alarm signal.

When filter and air-inlet grille 120 were installed on the wire rod 640 and therefore determine not have tension variation, air-inlet grille is raised (S560) with pre-set velocity and controller determines whether air-inlet grille turns back to normal condition (S270).

In further detail, whether be unlocked according to tight contact detection unit 680 and determine whether air-inlet grille returns normal condition.That is, when air-inlet grille 120 is raise when normally closely contacting front panel 400 by level, the microswitch of being located on the tight osculating element 680 all is unlocked.When air-inlet grille 120 did not closely contact front panel 400, at least one tight contact detection unit 680 kept closing (off) state.Utilize this method to determine that air-inlet grille 120 returns normal condition.When definite air-inlet grille 120 returned normal condition, air-inlet grille 120 stopped to be raised and to be kept for to operate the stand-by state of indoor unit.

On the other hand, when keeping off status to determine that air-inlet grille 120 does not return normal condition owing at least one tight contact detection unit 680, execution is used to guide air-inlet grille 120 to reach the process of normal condition.

In further detail, the process that is used to guide air-inlet grille 120 to reach normal condition is to be used for allowing air-inlet grille 120 flatly closely to contact the process of indoor unit by alternately carrying out to raise at the fixed time with the reduction process.

For example, can carry out and be used for scheduled time rising air-inlet grille 120 and process (L＞K) (S280) that reduce air-inlet grille subsequently with the scheduled time.As long as the reduction and the elevation process of air-inlet grille are performed once, the numerical value of the execution number of times (n) of the process that is used to guide air-inlet grille to reach normal condition just added up (S290).Subsequently, determine once more whether air-inlet grille 120 returns normal condition (S300).When definite air-inlet grille 120 returned normal condition, this process was finished.When definite air-inlet grille 120 does not return normal condition, determine then whether carry out number of times reaches pre-determined number (S310).When determining that carrying out number of times does not reach pre-determined number, carry out bootup process S280 once more.

Even when determining when bootup process S280 has been performed that air-inlet grille does not return normal condition yet under the situation of pre-determined number, to produce rub-out signal (S320) by controller.

Then, the user can carry out cleaning filtration/more change jobs safely by said process.

" embodiment ", " embodiment ", " exemplary embodiment " refer in this specification, and concrete feature, structure or the characteristic described about this embodiment are included among at least one embodiment of the present disclosure.This phrase that occurs in the various occasions in this manual is not must be all with reference to same embodiment.And.When describing concrete feature, structure or characteristic, think that those skilled in the art can change this feature, structure or characteristic about other embodiment in its scope about arbitrary embodiment.

Though a plurality of illustrative examples with reference to it are described embodiment, should be appreciated that those skilled in the art can design a plurality of other modification and embodiment, and these are revised and embodiment still falls into the spirit and scope of disclosure principle.More especially, in the scope of the disclosure, accompanying drawing and claims, the variations and modifications in the parts that subject combination is arranged, member and/or the layout all are possible.Except variation and modification in parts, member and/or layout, to those skilled in the art, alternative purposes also is tangible.

Claims

1. the indoor unit of an air-conditioning comprises:

Main body comprises heat exchanger and indoor fan;

Be connected to the air-inlet grille of the basal surface of described main body movably;

Be installed in the filter on the top surface of described air-inlet grille;

Be located at the aperture of flowing of the room air that is inhaled into guiding in the described main body;

Be located at the front panel of below, described aperture, described air-inlet grille closely contacts the inboard of described front panel,

It is characterized in that described indoor unit further comprises:

Be used to detect a plurality of tight contact detection unit whether described air-inlet grille closely contacts described front panel;

Be located at a plurality of grid lift units to allow described air-inlet grille to raise or reduce between described aperture and the described front panel; And

Be used to control the controller of the driving of described grid lift unit,

Wherein, described lift unit comprises:

Produce the lifting external member of revolving force; And

Wire rod, this wire rod have first end that is connected to described air-inlet grille and second end that is connected to described lifting external member.

2. according to the indoor unit of claim 1, during operation in wherein said grid lift unit and the indoor fan, another operation will be restricted,

And wherein, when the rotating speed of described indoor fan was higher than predetermined speed, the operation of described grid lift unit was restricted.

3. according to the indoor unit of claim 1, wherein said grid lift unit is installed on the top surface of the lower surface in described aperture or described front panel.

4. according to the indoor unit of claim 1, further comprise the wire tension detecting unit, described wire tension detecting unit is located at the sidepiece of described front panel, to determine by the tension variation that detects described wire rod whether described air-inlet grille is separated or whether described air-inlet grille runs into barrier.

5. according to the indoor unit of claim 4, at least one in wherein said tight contact detection unit and the tension detection unit comprises microswitch.

6. according to the indoor unit of claim 1, wherein said lifting external member comprises:

The external member case;

Be contained in the described external member case and produce the driver element of revolving force;

Be connected to described driver element and coiling or discharge the roller units of described wire rod; And

Be used to measure the length detection unit of the release length of described wire rod.

7. according to the indoor unit of claim 6, wherein said length detection unit comprises:

Rotate and be provided with the long measure body of a plurality of convex-concave portion integratedly in its outer circumference with described roller units; And

Be used for calculating the detection bodies of the speed of gyration of described long measure body by detecting described convex-concave portion.

8. according to the indoor unit of claim 1, wherein said controller be following both one of: be used for controlling the controller of operation of described indoor unit and the lifting controller of being located at described grid lift unit.

9. method that is used to control the indoor unit of air-conditioning, this method comprises:

Input reduces the phase I of air-inlet grille order;

Reduce the second stage of described air-inlet grille according to described reduction order;

Described air-inlet grille is stopped at the phase III of a position;

And by the automatic reduction length of described air-inlet grille being set through preset time or the signalization by the input controller.

10. according to the method for claim 9, the described phase I is by the manipulation menu button or reduce the input that button is carried out described reduction order.

11. according to the method for claim 9, described second stage is to reach a kind of in the following situation, described air-inlet grille stops to be lowered: user's input is ceased and desisted order; Described air-inlet grille runs into barrier; And described air-inlet grille is lowered to the default length that reduces.

12. according to the method for claim 9, the stopping of the air-inlet grille of described phase III comprise, carries out the accurate adjustment process of the automatic reduction length that is used to be provided with described air-inlet grille,

And wherein, described accurate adjustment process is carried out in the combination of ordering, cease and desist order and reduce order by described air-inlet grille rising.

13. according to the method for claim 9, the wherein said scheduled time be described air-inlet grille be lowered and the state that stops under do not have the situation institute elapsed time of operational order input.

14. according to the method for claim 9, wherein by cease and desist order with preset times input signal or by in the Preset Time section continuously the input signal of ceasing and desisting order carry out described signalization input.

15. a method that is used to control the indoor unit of air-conditioning, this method comprises:

Input filter cleaning/replacing order;

Reduce air-inlet grille;

Described air-inlet grille is stopped at automatic rest position;

The input air-inlet grille of the described air-inlet grille order that raises that is used to raise; And

Determine whether described air-inlet grille turns back to normal condition.

16. according to the method for claim 15, wherein, when indoor fan just is being driven or to be higher than rotating speed when rotation of predetermined value, the reduction of described air-inlet grille is restricted.

17. according to the method for claim 15, wherein, when described air-inlet grille was reducing, described air-inlet grille stopped to reduce when running into barrier.

18. according to the method for claim 15, wherein, stop at described air-inlet grille under the state of described automatic rest position, control an indoor fan, thereby can drive this indoor fan for the trial run of described indoor unit.

19., also be included in the described air-inlet grille rising of input order and determine afterwards whether filter or described air-inlet grille separate with wire rod according to the method for claim 15.

20., wherein, when described filter or described air-inlet grille separate with described wire rod, produce alarm signal according to the method for claim 19.

21., wherein comprise: when the tight contact detection of all on being installed in described indoor unit unit all is unlocked, determine that described air-inlet grille turns back to normal condition for determining of whether returning of described air-inlet grille according to the method for claim 15;

When any one in the tight contact detection unit on being installed in described indoor unit closed, determine that described air-inlet grille does not return normal condition; And

Execution is used to guide described air-inlet grille to reach the process of normal condition.

22. according to the method for claim 21, wherein by reducing described air-inlet grille with first scheduled time K and (the described air-inlet grille that raises of L＞K) is carried out the described process that is used to guide to normal condition with second scheduled time L subsequently.

23. method according to claim 22, wherein each the execution when being used to guide to the process of normal condition, whether execution returns determining of normal condition for described air-inlet grille, and wherein, even when described air-inlet grille does not still return normal condition after definite process that is being used to guide is performed pre-determined number, produce rub-out signal.