CN1223805C - Air conditioner buried in ceiling - Google Patents
Air conditioner buried in ceiling Download PDFInfo
- Publication number
- CN1223805C CN1223805C CNB021079803A CN02107980A CN1223805C CN 1223805 C CN1223805 C CN 1223805C CN B021079803 A CNB021079803 A CN B021079803A CN 02107980 A CN02107980 A CN 02107980A CN 1223805 C CN1223805 C CN 1223805C
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- Prior art keywords
- suction grille
- motor
- mentioned
- lifting
- air conditioner
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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
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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
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air Conditioning Control Device (AREA)
Abstract
An in-ceiling mount type air conditioner which can regulate indoor air by heat exchanging with indoor air. The air conditioner includes: an air suction grille for sucking air, a hoist cable fixed on the suction grille, a pulley winding another end of the hoist cable, a clutch for making the pulley rotate without anything, a shaft connected to the pulley by the clutch, an elevating motor connected to the shaft for making the pulley rotate by the power of the shaft and winding up/coil out the hoist cable so that the air suction grille can be elevated. The air conditioner is characterized in that it also includes: an operation switch for switching a power supply status of a power source to an elevating motor for elevating the air suction grille, upper-limit position detectors for detecting the upper-limit position of the air suction grille, a timer for counting a predetermined time from the actuation of the upper-limit position detector, a controller for stopping the elevating motor when the timer counts the predetermined time after the air suction grille reaches the upper-limit position.
Description
The application is dividing an application of application number is 96121981.5, the applying date is on October 12nd, 1996 original bill application, and the first of this original bill application is JP95-292075 in first to file, and priority date is October 13 nineteen ninety-five.
Technical field
The present invention relates to be arranged on the suction grille mounting structure of the air conditioner of imbedding ceiling in the ceiling with unit body, and the lift control system of suction grille.
Background technology
In general, known on ornamental ceiling, suction grille is set, the air conditioner of imbedding ceiling (spy opens flat 2-233920 number) of screen pack is set on this grid.Because this kind imbedded the air conditioner of ceiling by taking off suction grille from decorative panel, take off screen pack again, so compared the mounting or dismounting operation during filtering net cleaning or more to renew the maintenance of screen pack etc. more or less freely with former this air conditioner.
Yet, in imbedding the air conditioner of ceiling, naturally decorative panel or suction grille to be arranged in the ceiling, therefore, because the operation of taking off of above-mentioned suction grille is to carry out aloft, even the mounting or dismounting of screen pack are easier to, but all do not change screen pack, the problem that air conditioner moves will occur under the situation that its performance can not be brought into play fully.
In order to address this problem, consider used means below decorative panel, use lifting motor, support suction grille in liftable mode.If like this, when changing screen pack, but just this suction grille is reduced to lower position, changes screen pack at this lower position.In as above constituting, must have the operating system (control system) that the suction grille lifting is used.Operating system must can make the suction grille lifting, and can stop at an arbitrary position.When liftably supporting suction grille with many hanger ropes, such situation can appear, and because of its hanger rope is uneven in length, suction grille is understood run-off the straight at the suction grille upper limit position, and then the gap occurs between decorative panel and suction grille.
When many air conditioners are set on ceiling, can run into a plurality of suction grilles are almost being descended simultaneously, and change the situation of a plurality of suction grilles simultaneously.Under these circumstances, for example, if any one suction grille under the barrier of furniture and so on is arranged, when other suction grille was descended, this suction grille continued to descend and will run into the furniture under it and be forced to stop.If the operator fails to notice under this situation, make suction grille continue to descend, then hanger rope will relax, and hanger rope occurs and twine, when rising once more, the problem that appearance can not be risen.
Summary of the invention
First purpose of the present invention is to overcome above-mentioned prior art problems, providing a kind of can stop at suction grille on the optional position, and at the upper limit position of suction grille, very close to each other between decorative panel and the suction grille, in addition, hook the air conditioner of imbedding ceiling that the hanger rope of suction grille can not relax.
Second purpose of the present invention can prevent when providing a kind of motor overload that it is rotated further the air conditioner of imbedding ceiling that therefore the overload running of motor can be reduced to practical level.
The 3rd purpose of the present invention provide a kind of when descending the locking limit switch discontinuous action of hanger rope, stop time a time if operation its air conditioner of imbedding ceiling of being failure to actuate then once more.
The 4th purpose of the present invention provides a kind of common motor-driven relay, air conditioner of imbedding ceiling of no instantaneous short-circuit of recovering earlier.
The 5th purpose of the present invention provides a kind of air conditioner of imbedding ceiling that is in non-power status at the coil that stops repeat circuit.
Relate to a kind of air conditioner of imbedding ceiling that liftably supports this suction grille by the lifting of suction grille with motor in order to finish above-mentioned purpose a first aspect of the present invention, it is characterized in that being provided with console switch, the changeable operation of this console switch provides the supply condition of the power supply of electric energy with motor to above-mentioned suction grille lifting, and inclination alignment mechanism, in order to proofread and correct the heeling condition of described suction grille.
In the above-mentioned air conditioner of imbedding ceiling, the aforesaid operations switch is the swinging pullswitch, each Drawing switch, and above-mentioned suction grille moves according to the order that descends-stop-rising-stop.
In the above-mentioned air conditioner of imbedding ceiling, also be provided with when this down maneuver is forced to stop in the decline of above-mentioned suction grille the arresting stop that lifting is stopped with the running of motor.
In the above-mentioned air conditioner of imbedding ceiling, above-mentioned suction grille is supported by hanger rope, and lifting makes hanger rope reel/lay out with the rotation of motor, thereby finishes the lifting action of above-mentioned suction grille.
In the above-mentioned air conditioner of imbedding ceiling, also be provided with when above-mentioned hanger rope is lax in above-mentioned suction grille descends, detect the relaxation cases of this hanger rope, and the arresting stop that above-mentioned lifting is stopped with motor rotation.
In the above-mentioned air conditioner of imbedding ceiling, also be provided with above-mentioned suction grille arrive lifting position on make the coiling action of hanger rope continue the timer of stipulated time in limited time.
Relate to a kind of air conditioner of imbedding ceiling in order to finish above-mentioned purpose a second aspect of the present invention, wherein an end of hanger rope is fixed on the suction grille, the other end of this hanger rope is wound on the pulley, this pulley bears a fixed load by it is connected on the axle clutch of idle running when above, the suction grille lifting is connected on this axle with motor, this lifting motor action, with regard to the operating winding hanger rope, the console switch of supply condition of the power supply of electric energy is provided with motor from lifting, detect the upper limit position checkout gear of above-mentioned suction grille upper limit position, after this above-mentioned extreme position checkout gear action, the timer of instrumentation stipulated time, above-mentioned suction grille rises and arrives upper limit position, after the above-mentioned timer instrumentation stipulated time, and the control device that above-mentioned suction grille lifting is stopped with motor.
In the above-mentioned air conditioner of imbedding ceiling, also be provided with and monitor the monitoring circuit of above-mentioned lifting with the running voltage of motor.
In the above-mentioned air conditioner of imbedding ceiling, when above-mentioned supervision is higher than setting with the above-mentioned lifting of electric circuit inspection with the running voltage of motor, later lifting is stopped with motor at the appointed time.
In the above-mentioned air conditioner of imbedding ceiling, also be provided with when above-mentioned suction grille lifting action stops one time, before operating the aforesaid operations switch once more, keep the holding circuit that stops of this halted state.
In the above-mentioned air conditioner of imbedding ceiling, be provided with the relay circuit that constitutes by a plurality of relays, be used to control the lifting of above-mentioned lifting with motor, on relay circuit, add delay circuit is arranged, the purpose of this delay circuit is to make above-mentioned lifting to recover other relay delayed recovery earlier with relay with the driving of motor.
In the above-mentioned air conditioner of imbedding ceiling, be provided with the relay electrical equipment road that constitutes by a plurality of relays, be used to control the lifting of above-mentioned lifting with motor, when above-mentioned suction grille stopped at its upper limit position, the whole relay recoveries in the above-mentioned relay circuit were to original state.
In addition, according to a kind of being embedded in the ceiling of the present invention, by the air conditioner of indoor air being regulated with the room air heat exchange of imbedding ceiling, it comprises:
Suck the suction grille that air is used;
One end is fixed on the hanger rope on the suction grille,
The reel pulley of this hanger rope other end,
This pulley bears the clutch that a fixed load makes its idle running when above,
By this clutch be connected with this pulley the axle,
By be connected with this, this pulley is rotated, above-mentioned hanger rope is rolled/is laid out, thereby make the lifting motor action of above-mentioned suction grille lifting,
It is characterized in that also comprising:
Changeable operation provides the console switch of supply condition of the power supply of electric energy with motor to above-mentioned suction grille lifting,
Detect the upper limit position checkout gear of above-mentioned suction grille upper limit position,
After this above-mentioned extreme position checkout gear action, the timer of instrumentation stipulated time,
Above-mentioned suction grille rises and arrives upper limit position, above-mentioned timer meter after the stipulated time, the control device that above-mentioned suction grille lifting is stopped with motor.
Description of drawings
Fig. 1 is the longitudinal section of first embodiment of the air conditioner of imbedding ceiling of the present invention.
Fig. 2 shows the perspective view that Fig. 1 imbeds the air conditioner of ceiling.
Fig. 3 show Fig. 1 the air conditioner of imbedding ceiling taken off suction grille the time plane.
Fig. 4 A shows the perspective view that suction grille hangs following time, and Fig. 4 B is the enlarged drawing of Lock Part of the suction grille of Fig. 4 A.
Fig. 5 is the process chart of first embodiment.
Fig. 6 is the figure suitable with Fig. 3 of the second embodiment of the present invention, and the air conditioner of imbedding ceiling wherein is provided with inspection relaxation detecting sensor.
Fig. 7 shows the accompanying drawing of the ancillary equipment of the suction grille that contains Fig. 6 embodiment and its lax detecting sensor.
Fig. 8 is the circuit diagram of the lifting of the suction grille in the air conditioner of imbedding ceiling of Fig. 1 with the control circuit of motor.
Fig. 9 has improved the lifting of suction grille of Fig. 8 with the circuit diagram of the control circuit of the control part of motor.
Figure 10 A, 10B are respectively the down maneuver of suction grille and the flow chart of vertical motion.
Figure 11 is the holding function key diagram of the control circuit in the control part of Fig. 9.
Figure 12 is the holding function key diagram of the relay drive circuit in the control part of Fig. 9.
The specific embodiment
Below, one embodiment of the present of invention are described with reference to the accompanying drawings.
Fig. 1 is an embodiment of the common air conditioner of imbedding ceiling, and among this Fig. 1, Reference numeral 10 is air conditioners.The unit 2 that this air conditioner 50 is processed by the sheet metal that is installed in ceiling inside 1, have in the centre have on suction inlet 3, four limits in periphery blow-off outlet 4, be arranged on the decorative panel 7 on the ceiling surface 6 in order to clog smallpox plate hole 5 and have the suction grille 9 of air entry 8 to constitute in the centre.
The 10th, by turbofan 11 be installed in the pressure fan that the fan on the top board 12 constitutes with motor 13, the 14th, with exhaust outlet from the room air guided turbine blower fan 11 of air entry 8, the 15th, have interior rising edge 15a and outside rising edge 15b, make band square ring shape drip tray by foamed styrene, the 16th, its fin is lined up ring-type and surrounds the plate fin type heat exchanger of discharging side in the discharge side of turbofan 11.The 17th, be coated on the heat-insulating material around the unit 2, the 21st, with guide duct by the air guide outlet 4 of above-mentioned heat exchanger 16 heat exchangers, the 22nd, with suspender unit 2 is suspended in davit on the smallpox plate-girder, 24 are mounted in the filter in suction grille 9 downstreams.
The major part of present embodiment then, is described with reference to Fig. 2 to 4.
Fig. 2 is the perspective view of the air conditioner of imbedding ceiling of Fig. 1, the plane when Fig. 3 has represented to take off the suction grille of the air conditioner of imbedding ceiling of Fig. 1, and the perspective view of Fig. 4 A when to be expression put down suction grille, and Fig. 4 B is the enlarged drawing of suction grille suspension hook.Suction grille 9 is liftably supporting by four hanger ropes 31.The hawser of on the periphery of resin rope or metal wire, smearing ethene can be used on four hanger ropes 31, also dial cord can be used.One end 31a of four hanger ropes 31 is hooked in shown in Fig. 4 A, 4B on the hook 90a of suction grille reinforcing member 90, the other end 31b of two hanger ropes 31 in four hanger ropes 31 is wound on respectively on the head pulley 100A, and the other end 31c of all the other two hanger ropes 31 is wound on the head pulley 100B by conductor rope spare 200 or auxiliary pulley (not shown).
For an end 31a of hanger rope 31 is hooked the hook 90a of suction grille reinforcing member 90, and should hold 31a shown in Fig. 4 b, to bend to scroll 91 like that and clamped, the hanging ring 31d of hanger rope 31 was enclosed within after hook 90a goes up, along direction of arrow pull-up hanger rope 31 gently.
Parts such as these suction grille reinforcing member 90 usefulness bolts are fixed on the both sides of suction grille 9, as mentioned above, except the hook effect of playing four hanger ropes 31, also can strengthen the intensity of suction grille 9, and the filter 24 that has concurrently on the suction face that prevents to be installed in suction grille 9 moves laterally.
Amounting to four main movable pulley 100A, 100B connects into a pair of at the both ends of axle 110 as shown in Figure 3.The last processing of each head pulley 100A, 100B is porose, and axle 100 is passed hole on it, makes each head pulley 100A, 100B to dally on axle.With a plurality of screws fixed part 120 is fixed on the shaft end of axle 110, between this fixed part 120 and head pulley 100A, 100B, revolving force conveyers (hereinafter referred to as helical spring) 130 such as helical spring, flat spring, electromagnet is installed.The 125th, ring free to rotate is carried on four modes on the hanger rope by helical spring 130 with the deadweight of suction grille 9, makes fixed part 120, head pulley 100A, 100B and ring 125 constitute one, makes four hanger ropes 31 roll/lay out with axle 110.And when on four hanger ropes 31 during excess load, the elastic force of opposing helical spring 130 makes head pulley 100A, 100B idle running.
In addition, if adopt this embodiment, as shown in Figure 2, be used to drive the drive system 150 of suction grille 9 liftings, promptly by comprising on the support plate 151 of drive system centralized configuration in the opening that reaches unit 2 that above-mentioned head pulley 100A, 100B, axle 110, the clutch of revolving force conveyer 130 and suction grille lifting described later constitute with motor 140.
As shown in Figure 3, this support plate 151 is fixed on the decorative panel 7, and above-mentioned drive system 150 is fixed on these decorative panel 7 sides.The electric appliance box 160 that is used to control this air conditioner extend in the peristome of unit 2 with respect to this support plate `151.This electric appliance box 160 and support plate 151 extend into can be described as in the peristome that air enters usefulness of unit 2.That is, support plate 151 extend in the regional 190A, and electric appliance box 160 extend in the regional 190B, but the existence of these parts does not influence the function that air enters.In other space 170, can enter enough air.Be fixed on the decorative panel 7 with respect to above-mentioned drive system 150, and this electric appliance box 160 is fixed on the unit 2.
Be described in more detail drive system 150 below, axle 110 is rotatably supported on the support plate 151 by two bearings 152.
Gear 153 is fixed on the axle center position of axle 110, gear 154 and these gear 153 engagements, and gear 154 is fixed on above-mentioned suction grille lifting with on the output shaft of motor 140.On the mark 140 motor electric capacity, the 143rd, timer (revise and use).
With reference to Fig. 2, in order to make suction grille 9 liftings, be provided with pullswitch (console switch) 51, simultaneously with reference to Fig. 3, also be provided with upper limit position detecting sensor 52 and lower position detecting sensor 53.The length that this lower position detecting sensor 53 lays out according to hanger rope 31 detects the lower position of suction grille 9.
Specifically, the length of this hanger rope 31 is to detect according to the number of turns that is wound on the hanger rope 31 on the head pulley 100B.
As console switch, be not limited to pullswitch 51.For example, in wall-hanging floatless switch, can should be connected on the lifting motor 140 by fixed switch with hawser, in addition, also can be in remotely controlled plant built-in this switch.
Below, with reference to the control flow of accompanying drawing 5, the action of present embodiment is described.
For example, prepare a drawing line earlier, during with this root drawing line Drawing switch 51 (S1), the suction grille lifting is just being changeed with motor 140, and drive system is driven, and begins descend (S2) by hanger rope 31 suction grilles.In addition, during pull operation switch 51 (S3), suction grille 9 stops to descend (S4), and (S5) during pull operation switch 51 again, the suction grille lifting is followed successively by reverse with motor 140, upwards rise (S6) of suction grille 9.In addition, adopt the swinging pullswitch as switch 51, and during the repeatable operation switch, just changeing, stop, reversing sequential operation, suction grille 9 is with [decline] with motor 140 in the suction grille lifting, and [stopping], [rising], the sequence of movement of [stopping] being moved.
In S6, after suction grille 9 rises, when this suction grille 9 arrives upper limit position, 52 actions of upper limit position detecting sensor, meanwhile, timer 143 action is through (for example 0.3-2 second) back (S7) X second, the suction grille lifting stops to reverse with motor 140, and the rising of suction grille 9 stops (S8).
When hanger rope 31 is hung oneself suction grille 9, will inevitably occur causing the situation that suction grille 9 rises obliquely because of being uneven in length of four hanger ropes 31.
Adopt this embodiment, even suction grille 9 rises obliquely, because after 52 actions of upper limit position sensor, and process stipulated time (X second) afterwards, the suction grille lifting stops to reverse with motor 140, so before whole hanger ropes 31 are rolled fully, because of head pulley 100A, 100B still are rotated further, suction grille 9 will be winched to complete horizontal state and closely be contacted with decorative panel 7.In the case, in four hanger ropes 31, the head pulley 100A of rolled-up in the past hanger rope 31,100B dallies on axle 110 as described above.
In the decline process of this suction grille 9, as mentioned above, by pulling pullswitch 51 (S3), suction grille 9 stops to descend (S4), therefore, suction grille 9 can stop on the optional position, though Fig. 2 omits, but the filter 24 (Fig. 1) that air cleaner is used is installed on the top of suction grille 9, as shown in the figure, when suction grille 9 descends from ceiling surface 6, in the time of can on the way stopping, change filter 24, operations such as cleaning.
Therefore, compare with operation aloft, not only operation is simple, and the security of operation is reliable.
Above-mentioned suction grille 9 also can be to be secured to structure on the decorative panel by abridged suction grille locking mechanism among the figure, but this locking mechanism is not necessary, has therefore omitted in the present embodiment.In addition,, can magnet 43 be set on decorative panel 7, with magnet locking suction grille 9 with reference to shown in Figure 2 as simple suction grille locking mechanism.
So, according to present embodiment, by console switch 51, drive suction grille lifting motor 140, axle 110 rotates, and the head pulley 100A, the 100B that are connected with this by clutch rotate, the hanger rope 31 that is wound on this head pulley 100A, the 100B is rolled or is laid out, therefore therefore suction grille 9 lifting automatically when the filter 24 that the maintenance air cleaner is used, is reduced to lower position (or optional position) with it and is carried out maintenance activity afterwards.
In addition, according to the structure of present embodiment, by operation swinging pullswitch, suction grille moves by the order that descends-stop-rising-stop, and therefore utilizes simple operations just can stop at suction grille on the optional position.
In addition, owing to a suction grille lifting only is set with motor 140, can not increase cost, compare with motor 140 with many suction grille liftings are set, simple in structure, fault is also few.When load is excessive on suction grille, clutch operating, head pulley 100A, 100B be idle running just, just can prevent that the suction grille lifting is with motor 140 scaling loss, when rolling hanger rope 31, even the phenomenon that is uneven in length of four hanger ropes 31 for example takes place, because of final when rolled-up at suction grille 9, head pulley 100A, 100B idle running can remedy hanger rope 31 and be uneven in length, so suction grille can closely contact fully with decorative panel 7, both the gap can not occur.
Fig. 6 and Fig. 7 illustrate another embodiment
In the embodiment of Fig. 1 to Fig. 5, hanger rope 31 lays out fully, suction grille (for example arrives lower position, position apart from ceiling 2m), perhaps in the way that descends, spur pullswitch 51, suction grille 9 is not limited to stop on the way, remain in operation with motor 140 because of the suction grille lifting, the down maneuver of suction grille 9 does not on the way stop.
But also such situation can appear, when the furniture (Fig. 7) as cabinet 80 grades of barrier is arranged under suction grille 9, even this suction grille 9 continue to descend with under cabinet 80 contact, the decline of suction grille 9 is forced to stop, because the operator does not have console switch to this, suction grille 9 down maneuvers are proceeded, hanger rope 31 is lax thereupon, hanger rope twines, and when suction grille 9 was risen, this suction grille just can not rise.
According to the embodiment of Fig. 6 and Fig. 7, be provided with one at hanger rope 31 with shown in the chain-dotted line when like that lax, detect its lax sensor 65.
When these sensor 65 actions, the motor 140 that the suction grille lifting is used shuts down.As shown in Figure 7, this sensor 65 has a spring 67, and the front end 67a of this spring 67 hangs on the hanger rope 31c.When spring 67 compresses like that downwards with shown in the chain-dotted line, when front end 67a hung over hanger rope 31c and goes up, because the tension force effect of this hanger rope 31c, spring was pulled upwardly like that with shown in the solid line.So spring 67 is upspring by the tension force side of keeping up of hanger rope 31, when hanger rope 31c is lax, spring 67 is with withdrawal like that downwards shown in the chain-dotted line, when it was withdrawn upward, for example the contact of limit switch 69 disconnected, and the suction grille lifting shuts down with motor 140.
According to this embodiment, for example, suction grille 9 contacts (Fig. 7) with cabinet 80, and hanger rope 31 is shown in chain-dotted line when loose, and sensor 65 detects that it is loose, the grid lifting that the stops suction running of motor 140, therefore, suction grille 9 can not continue to descend, and, can not curl the security when having guaranteed the suction grille lifting because of hanger rope 31 relaxes.
Herein, Fig. 8 shows the lifting of suction grille of the air conditioner of imbedding ceiling with the control circuit of motor.In the control circuit of Fig. 8, the 201st, the swinging pullswitch that is connected with console switch, the 202nd, relay drives uses power supply, the 203rd, the upper limit limit switch corresponding with above-mentioned upper limit position detecting sensor 52, the 204th, the lower limit limit switch corresponding with above-mentioned timer 143, the 205th, relay, the 206th, the lower limit limit switch corresponding, the 207th, the lax detection limit switch corresponding with above-mentioned lax detecting sensor 65 with above-mentioned lower position detecting sensor 53, the 208th, regeneration (braking) reactance, 209,210,211, reaching 212 is that relay electricity 140 is lifting motors, the 214th, motor-driven power supply, 214a are to rise that use switch, 214b be the decline switch.
Below, the action of the control circuit of key diagram 8.
When rising, at first, along with the operation of pullswitch 51, during 201 one-tenth states that rise of revolution switch, relay 209 conductings, junction closure, relay 211 conducting junction closures rise with switch 214a closure, and because of the effect of motor-driven with power supply 214, lifting is rotated with motor 140.Therefore, suction grille 9 rises.When suction grille 9 rose to upper limit position, suction grille 9 was closed limit switch 203, timer 204 energisings.Through behind the certain hour, electric current flows through the coil of relay 205 after timer 204 energisings, and contact disconnects, and motor 140 stops.
Yet when descending, relay 210, relay 212 conducting successively descend with switch 214b closure, just in time rotate in the opposite direction on the contrary when motor 140 and rising.At this moment, when suction grille 9 dropped to the lower position, limit switch 7 disconnected, and motor 140 stops.In addition, when suction grille 9 contacts with article in decline, detect hanger rope lax of suspention suction grilles 9 by switch 206, and motor is stopped.
In above-mentioned lifting action, reason whatsoever when suction grille 9 rises to upper limit position, when limit switch 203 was failure to actuate, motor 140 did not stop, and remained in operation before operation revolution switch 201.Suction grille 9 arrives after the upper limit positions, and continue rising in the time before stopping by timer 204 and can make motor 140 overloads, and running motor 140 can be out of order (problem 1) when surpassing certain hour (0.3 second-4.0 seconds).In addition, when descending, because switch 206 and 207 actuating ranges are narrow, because of reasons such as vibration can make junction closure, for example, suction grille is met the people and situation about stopping etc., if this people is moving, then descend once more, can run into once more immediately in the position that the curved a little waist once of the direction that descends towards suction grille just can be avoided colliding and stop.Therefore, motor 140 connection/closing motion repeatedly at short notice.Making motor 140 connection/shutoff operations repeatedly like this is reasons (problem 2) that motor 140 performances are descended.
In addition, when operating condition changes to halted state, because of the time difference short circuit current flow of recovery time (switching time) of relay.This be for example when suction grille stops in descending (, the relay 210 of Fig. 8 switches to solid line position from dotted line position, descend with switch 214b when dotted line position switches to solid line position), relay 210 and relay 212 (214b) are cut off, motor 140 just shuts down, but, and often be in the reason of on-state simultaneously because of this two relays 210,212 (214b) foozle makes the shut-in time have deviation.Promptly exist relay 210 to be in solid line position, descending is in the state of dotted line position with switch 214b.In fact, because the recovery time of relay 212 is long, so electric current is used the contact of switch 214b one side from power supply by descending, flow through the contact of (being switched) relay 210 that recovers earlier and the regeneration reactance 208 of 0.5 ohm of size, flow back into power supply 214 by the other contact that descends with switch 214b again.The time that electric current flows through is the several seconds, but because the moon of circuit is anti-little, so electric current becomes big electric current, power supply is produced adverse influence (problem 3).
At upper limit position, by timer 204 it is stopped after, relay keeps original "on" position 205.When making relay 205 long-time energisings, coil temperature rises, and relay 205 is heated, and has aggravated the corrosion of contact.Under actual user mode, if held suction grille, the user can not expect console switch.So to suction grille decline cleaning was installed in the interior filter of the suction grille time (a few days is to the several months) before, relay 205 is keeping "on" position (problem 4).
Below, the additional embodiments of the present invention that further solves the problems referred to above of first and second embodiment is described.
Fig. 9 shows the control part of the lifting of the suction grille in the air conditioner of imbedding ceiling of the present invention with motor.
In Fig. 9, the 220th, the swinging pullswitch draws once and just switches in proper order by the contact that stops → descending → stop → rising.
If in down maneuver, be in the lower position, 222 actions of lower limit limit switch, suction grille 9 stops.When suction grille 9 relaxes hanger rope 31 because of reasons such as contact objects, sense switch 223 actions, and it is stopped.Control circuit 225 have keep this halted state stop to keep function.During inoperation revolution switch 220, suction grille 9 is failure to actuate.
In vertical motion, when suction grille 9 contact upper limit limit switches 221, as mentioned above, the timer action in the control circuit 225 just stops through after the stipulated time.
Voltage during the running of motor action voltage detecting circuit 240 monitoring motors 140, whether the load current that detects motor is in normal range (NR).In addition, it shuts down when the load current of motor 140 surpasses the specified setting of motor.Therefore, just can solve the problem (2) of first and second embodiment.
Blocked impedance 227 is not insert for motor 140 is rotated, and is connected in series with motor 140 in stopping.This blocked impedance 227 of relay 228/233 on-stream cut-out.
In order to drive relay, used transistor 230/232 (rise and use) herein, 235/237 (descend and use) is if but have simpler method can not use transistor.
Power supply be divided into control relay circuit with 226 and motor-driven with 239, this be because motor 140 load on when rising and when descending difference very big, the change of supply voltage increases, uncertain reference voltage and control circuit 225 and operating stably in order to detect motor action voltage.
Motor action voltage detecting circuit 240 begins to monitor its voltage through (for example, 50 to 300ms) after the stipulated time after motor 140 begins to rotate.This is because of motor 140 unexpected inflow current when beginning to rotate, so do not detect the reason of this electric current and overload situations.
Below, the action of the control part of key diagram 9.
When operation revolution switch 220, when halted state fades to the decline state, control circuit 225 must receive the input signal from lower limit limit switch 222, lax sense switch 223, motor action voltage detecting circuit 240, descend with relay drive circuit 234 actions, suction grille 9 is descended.Decline is at first connected transistor 235 with relay at drive circuit 234 and is made relay 233 actions.Relay 233 is opened the contact of a side, makes blocked impedance 227 separate with motor 140, and wherein the contact of a side is closed.When relay drive circuit 234 is accepted the input signal of this contact, connect transistor 237, make relay 236 actions.Therefore, close with switch 236 owing to descend, in the motor 140 from the left side of Fig. 9 inflow current to the right, towards the direction rotation that suction grille 9 is descended.
In down maneuver, when lower limit limit switch 222 or 223 actions of lax switch, when contact was closed, control circuit 225 stopped to relay drive circuit 234 output signals.Under this state,, do not keep original halted state to relay drive circuit 234 output signals even the contact of switch 222/223 is opened yet.Therefore, solved problem (1) among first and second embodiment.Just can remove this by operation swinging switch 20 and stop hold mode.
When control circuit 225 not during output signal, relay drive circuit 234 at first cuts off transistor 237, thereby cut-out inflow relay being opened decline relay 236b at 236 electric current, reach the power supply that cuts off flow direction motor 140 and supply with, and motor 140 is shut down.Afterwards, by the delay circuit of inside as through disconnecting transistor 235 behind the 5-20ms, blocked impedance is connected with motor 140.
When operation swinging switch 220.When its contact switches to propradation, rising is moved with relay drive circuit, thereby suction grille is risen.Rise and at first connect transistor 230 driving relays 228 with relay drive circuit 229.Relay 228 disconnects the contact of a side, blocked impedance 227 and motor 140 is disconnected, wherein the junction closure of a side.When relay drive circuit 234 is accepted the input signal of this contact, connect transistor 232, make relay 231 actions.Therefore, owing to rise with switch 231 closures, electric current is mobile to the right motor 140 from Fig. 9 left side, rotates towards the direction that suction grille 9 is descended.
Direction when the action current flow direction is with decline during rising is opposite.The signal that stops vertical motion becoming the input signal from upper limit limit switch 221 and motor action voltage detecting circuit 240.When these input signals, control circuit 225 is stopping to relay drive circuit 229 output signals through after the stipulated time.When relay drive circuit 229 stops when the input from control circuit 225, disconnect transistor 232, cut off the electric current that flows to relay 231.Therefore, rise and open with switch 231a, be cut off the power supply of supply motor 140, motor 140 stops operating.Under this state,, also can not become the relay of energising even swinging switch 220 is selected to rise.Therefore, solved the problem (4) of first and second embodiment.For suction grille 9 is descended, as long as operation revolution pullswitch 220 secondaries.
The down maneuver and the vertical motion (Figure 10 A down maneuver, Figure 10 B is vertical motion) of the suction grille of above explanation are shown with the flow chart of Figure 10 A, 10B.
In the down maneuver of Figure 10 A, step 300 is the decline on-state, in step 302, when decline limit switch 222 is not connected, enters into step 304, in step 304, when anti-lax switch 223 is not connected, enters into step 306.In step 306, relay 233 is connected, and in step 308, relay 236 is in on-state, in step 309, when through 100 seconds, enters step 310.In step 310, when detecting motor overload by testing circuit 240, overload surpassed after 4 seconds in step 312, entered step 318, and in above-mentioned steps 310, when testing circuit does not detect motor overload, entered step 314.In step 314, when at least one becomes on-state in limit switch 222, the lax switch 223, enter step 318, in step 314, when in the switch 222,223 which all do not connected, enter step 316.In step 316, when disconnecting (when promptly connecting), switch 220 do not turn back to step 310, in step 316, when switch 220 is off-state, just enter into step 318.In step 318 repeat circuit 236 board off-states, in step 320,, become off-state at step 322 repeat circuit 233, and in step 324, stop through after 20 seconds.
For the vertical motion (step 400/424) of Figure 10 B, except the action element difference with error because identical, omit corresponding explanation herein with down maneuver.
Each 229 (234) that produce by the control circuit in the control part of above-mentioned Fig. 9 225 and relay drive circuit, corresponding with various input signals in each action of suction grille holding function is shown respectively in Figure 11, Figure 12 and exports the result.
As mentioned above, according to the present invention, because pass through switching manipulation switch, Switching power is supplied with the state of suction grille lifting with motor, so corresponding to the supply condition of this power supply, the suction grille lifting is carried out forward and reverse with motor, therefore, can make the suction grille lifting.In addition, because pass through switching manipulation switch, suction grille is stopped on the optional position, so status of equipment corresponding to air conditioner, can consider suction grille is dropped to very low position, also can not fall suction grille very lowly, so, can stop suction grille going up in place according to any situation, therefore can simplify replacing operation as the filter of final purpose.
In addition, support suction grilles and make its lifting with many hanger ropes, even being uneven in length of these hanger ropes causes the spacing heeling condition that is set to of suction grille thereon, before the timer timing arrives the stipulated time, lifting still is being rotated further with motor, therefore during this period, the coiling length pulley of short hanger rope dallies at upper limit position, and the hanger rope that length is grown is before rolling fully, continue the coiling hanger rope, inclination up to eliminating suction grille at the upper limit position of suction grille, the gap can not occur between suction grille and the decorative panel.
On the other hand, because by operation revolution switch, suction grille moves according to the order that descends-stop-rising-stop, so suction grille can be stopped on the optional position with shirtsleeve operation.
In the decline process of the suction grille of imbedding ceiling, when contacting, when the down maneuver of suction grille is forced to stop with barrier as cabinet etc., because lifting stops with the running of motor, in the case, air intake grill also stops, thereby has guaranteed its security.Because on suction grille, it is lax to detect hanger rope on the way with the hanger rope bolt, stop with the running of motor with regard to making lifting, suction grille also stops to descend in the case, and therefore, hanger rope can not relax, thereby has guaranteed completeness.
According to the air conditioner of imbedding ceiling of the present invention, be rotated further when preventing motor overload, and increased the circuit of monitoring motor running voltage, thereby the overload running of motor can be reduced to practical degree.
In order when descending, to make the locking limit switch of hanger rope move discontinuously, stop holding circuit and on control circuit, increased, in a single day therefore stop, not operating respective switch once more, with regard to akinesia.
Owing to be provided with delay circuit at relay drive circuit, motor-driven is recovered earlier with relay, so comprehensive history eliminated the instantaneous short circuit phenomenon.
Because finish the stopping of the upper limit by reset relay, therefore in stopping, relay is in cold state.
Claims (2)
1. one kind is embedded in the ceiling, and by the air conditioner of indoor air being regulated with the room air heat exchange of imbedding ceiling, it comprises:
Suck the suction grille that air is used;
One end is fixed on the hanger rope on the suction grille,
The reel pulley of this hanger rope other end,
This pulley bears the clutch that a fixed load makes its idle running when above,
By this clutch be connected with this pulley the axle,
By be connected with this, this pulley is rotated, above-mentioned hanger rope is rolled/is laid out, thereby make the lifting motor action of above-mentioned suction grille lifting,
It is characterized in that also comprising:
Changeable operation provides the console switch of supply condition of the power supply of electric energy with motor to above-mentioned suction grille lifting,
Detect the upper limit position checkout gear of above-mentioned suction grille upper limit position,
After this above-mentioned extreme position checkout gear action, the timer of instrumentation stipulated time,
Above-mentioned suction grille rises and arrives upper limit position, above-mentioned timer meter after the stipulated time, the control device that above-mentioned suction grille lifting is stopped with motor.
2. the air conditioner of imbedding ceiling as claimed in claim 1 is characterized in that, when the suction grille of using when above-mentioned suction air was forced to stop, described control device made above-mentioned suction grille lifting stop with motor.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29207595A JP3507601B2 (en) | 1995-07-04 | 1995-10-13 | Ceiling-mounted air conditioner |
| JP292075/95 | 1995-10-13 | ||
| JP35108595A JP3523736B2 (en) | 1995-12-25 | 1995-12-25 | Ceiling-mounted air conditioner |
| JP351085/95 | 1995-12-25 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96121981A Division CN1111686C (en) | 1995-10-13 | 1996-10-12 | In-ceiling mount type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1389674A CN1389674A (en) | 2003-01-08 |
| CN1223805C true CN1223805C (en) | 2005-10-19 |
Family
ID=26558827
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96121981A Expired - Fee Related CN1111686C (en) | 1995-10-13 | 1996-10-12 | In-ceiling mount type air conditioner |
| CNB021079803A Expired - Fee Related CN1223805C (en) | 1995-10-13 | 2002-03-20 | Air conditioner buried in ceiling |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96121981A Expired - Fee Related CN1111686C (en) | 1995-10-13 | 1996-10-12 | In-ceiling mount type air conditioner |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0768500B1 (en) |
| KR (1) | KR100430874B1 (en) |
| CN (2) | CN1111686C (en) |
| DE (1) | DE69630091T2 (en) |
| ES (1) | ES2207662T3 (en) |
| PT (1) | PT768500E (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414187C (en) * | 2003-10-30 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Indoor unit for hang ceiling type air conditioner |
| JP4359124B2 (en) * | 2003-11-20 | 2009-11-04 | 三洋電機株式会社 | Embedded ceiling air conditioner |
| KR100801384B1 (en) * | 2003-11-30 | 2008-02-05 | 도시바 캐리어 가부시키 가이샤 | Air conditioner, and control method and recording medium for storing control program for air conditioner |
| CN100432548C (en) * | 2004-09-24 | 2008-11-12 | 乐金电子(天津)电器有限公司 | Indoor unit for ceiling air conditioner |
| CN1888691B (en) * | 2005-06-30 | 2010-08-25 | 乐金电子(天津)电器有限公司 | Air conditioner up-down grid controller and controlling method thereof |
| JP3960348B1 (en) * | 2006-02-03 | 2007-08-15 | ダイキン工業株式会社 | Air conditioner |
| KR100780165B1 (en) * | 2006-04-17 | 2007-11-27 | 신정훈 | air conditioner |
| KR100787774B1 (en) * | 2007-03-22 | 2007-12-24 | 신정훈 | Grill hook for air conditioner |
| KR100725816B1 (en) | 2006-07-10 | 2007-06-08 | 삼성전자주식회사 | Ceiling-mounted cassette type air conditioner and control method thereof |
| KR101111728B1 (en) * | 2006-11-20 | 2012-02-15 | 삼성전자주식회사 | A Ceiling Type Air Conditioner |
| KR100776001B1 (en) * | 2007-01-25 | 2007-11-15 | 삼성전자주식회사 | System aircon and control method thereof |
| KR100946652B1 (en) * | 2008-01-21 | 2010-03-09 | 엘지전자 주식회사 | Indoor unit for air conditioner |
| JP4433076B2 (en) * | 2008-02-05 | 2010-03-17 | ダイキン工業株式会社 | Air conditioning indoor unit |
| JP4433059B2 (en) * | 2008-02-05 | 2010-03-17 | ダイキン工業株式会社 | Air conditioner indoor unit |
| CN101592361B (en) * | 2008-05-26 | 2013-02-06 | 乐金电子(天津)电器有限公司 | Indoor unit of air conditioner |
| JP4488107B2 (en) * | 2008-07-18 | 2010-06-23 | ダイキン工業株式会社 | Air conditioning indoor unit |
| JP5493495B2 (en) * | 2009-06-23 | 2014-05-14 | ダイキン工業株式会社 | Air conditioner indoor unit |
| CN102734871B (en) * | 2012-07-03 | 2017-12-26 | 海尔集团公司 | Hidden type air conditioner indoor unit |
| CN102920179B (en) * | 2012-11-21 | 2014-07-02 | 徐广顺 | Ceiling wardrobe |
| CN104566908B (en) * | 2013-10-29 | 2017-11-14 | 珠海格力电器股份有限公司 | Raise-bore machine panel |
| CN104891363A (en) * | 2014-03-05 | 2015-09-09 | 珠海格力电器股份有限公司 | Lifting wheel, lifting device and ceiling type air conditioner |
| CN105318501B (en) * | 2015-10-16 | 2018-08-07 | 珠海格力电器股份有限公司 | Control method and device for air return frame of raise boring machine |
| CN105864996B (en) * | 2016-04-15 | 2019-10-01 | 合肥美的暖通设备有限公司 | Air conditioner, the return air board group part of air conditioner and its control method |
| CN106931616A (en) * | 2017-04-14 | 2017-07-07 | 珠海格力电器股份有限公司 | Panel assembly and air conditioner with same |
| CN107420976B (en) * | 2017-05-10 | 2023-09-08 | 珠海格力电器股份有限公司 | Safety device for lifting panel, lifting panel and air conditioner |
| CN111365768B (en) * | 2020-04-02 | 2021-09-03 | 保定丰和电气科技有限公司 | Supplementary ceiling type air conditioner erection equipment |
| CN113899031A (en) * | 2021-10-02 | 2022-01-07 | 武汉奇人制冷技术有限公司 | Large-scale central air conditioning air intake monitored control system that disappears |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02233920A (en) * | 1989-03-03 | 1990-09-17 | Sanyo Electric Co Ltd | Ceiling-embedded type air-conditioning device |
| JP3043141B2 (en) * | 1991-11-15 | 2000-05-22 | 三洋電機株式会社 | Air conditioner |
| JP3051892B2 (en) * | 1995-02-28 | 2000-06-12 | 三洋電機株式会社 | Ceiling-mounted air conditioner |
-
1996
- 1996-10-10 PT PT96116274T patent/PT768500E/en unknown
- 1996-10-10 EP EP96116274A patent/EP0768500B1/en not_active Expired - Lifetime
- 1996-10-10 DE DE69630091T patent/DE69630091T2/en not_active Expired - Lifetime
- 1996-10-10 ES ES96116274T patent/ES2207662T3/en not_active Expired - Lifetime
- 1996-10-12 KR KR1019960045579A patent/KR100430874B1/en not_active IP Right Cessation
- 1996-10-12 CN CN96121981A patent/CN1111686C/en not_active Expired - Fee Related
-
2002
- 2002-03-20 CN CNB021079803A patent/CN1223805C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1111686C (en) | 2003-06-18 |
| EP0768500B1 (en) | 2003-09-24 |
| CN1161435A (en) | 1997-10-08 |
| KR100430874B1 (en) | 2004-07-16 |
| CN1389674A (en) | 2003-01-08 |
| PT768500E (en) | 2004-02-27 |
| ES2207662T3 (en) | 2004-06-01 |
| EP0768500A2 (en) | 1997-04-16 |
| KR970047311A (en) | 1997-07-26 |
| DE69630091D1 (en) | 2003-10-30 |
| EP0768500A3 (en) | 2000-04-05 |
| DE69630091T2 (en) | 2004-06-17 |
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