CN1100237C - Fitted-in-roof air-conditioner with controller making lifting plate move up and down - Google Patents
Fitted-in-roof air-conditioner with controller making lifting plate move up and down Download PDFInfo
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- CN1100237C CN1100237C CN97118568A CN97118568A CN1100237C CN 1100237 C CN1100237 C CN 1100237C CN 97118568 A CN97118568 A CN 97118568A CN 97118568 A CN97118568 A CN 97118568A CN 1100237 C CN1100237 C CN 1100237C
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- Prior art keywords
- lift motor
- lifter plate
- current sinking
- suction grille
- 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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F13/082—Grilles, registers or guards
- F24F13/084—Grilles, registers or guards with mounting arrangements, e.g. snap fasteners for mounting to the wall or duct
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
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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 type air conditioner including an unit body which contains a heat exchanger and an air blower and is mounted in the ceiling, a decorative panel provided on the ceiling face, an elevating panel with an air filter which is upwardly and downwardly moved by an elevating motor, a driver circuit for supplying an operating current to the elevating motor to rotate the elevating motor forwardly and backwardly, a controller for outputting a control signal to the driver circuit and controlling the driver circuit on the basis of the control signal, a consumption current detector for detecting the consumption current of the elevating motor at all times to output a detection result to the controller, and a timer for counting a predetermined time and outputting the count result to the controller.
Description
Technical field
The present invention relates to a kind of improvement of in-roof air-conditioner, this air regulator has a control system that moves up and down that is used for controlling a plate that can move up and down (below be called lifter plate), also is provided with an air cleaner that is used for cleaning the air that sucks in-roof air-conditioner.
Background technology
A suction grille with a lifter plate is set in known a kind of in-roof air-conditioner usually, suction grille is supported to by using a lift motor that its lower surface with respect to a packaged plaque is freely moved up and down.In the air regulator of this pattern, can finish the work of replacing old air cleaner with new air cleaner at lower position because can control be provided with air cleaner suction grille to moving down into above-mentioned lower position.
As mentioned above, traditional in-roof air-conditioner is provided with the upper and lower bound bit switch so that be used for detecting respectively the upper limit position and the lower position of lifter plate.When suction grille moved down and be parked in the lower position, lift motor stopped according to the signal that the lower position switch that is used for detecting the lower position sends.On the other hand, when suction grille moved up and be parked in upper limit position, lift motor stopped according to being used for the signal that the upper limit position switch of upper limit of detection position sends.
Particularly when suction grille is parked in upper limit position, suction grille is moved upwards up to its four angles equably with till the lower surface of decorative panel contacts always, so that make the unlikely inclination of suction grille, and is parked on this position with keeping level.
On January 29th, 1997, the Japanese Utility Model communique No.2532897 of registration disclosed a kind of motor torque restriction device, and it can make the motor braking that promotes inspiratory gate when work.Torque limiter plays a part the bound bit switch.On January 29th, 1997, the Japanese Utility Model communique No.2532898 of registration also disclosed a kind of motor torque restriction device identical with Japanese Utility Model communique No.2532897, and the label of its Fig. 3 is represented a kind of limit switch corresponding to the bound bit switch.
As mentioned above, in the prior art, be parked in upper limit position or lower position for making suction grille, limit switch must be set, obviously this will make parts and number of electrical lines increase, and influence the reduction of cost.In addition, fault rate has also increased.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of in-roof air-conditioner, component count in this air-conditioner and number of electrical lines reduce, suction grille is at less trouble and can be parked in upper limit position or lower position under the prerequisite cheaply, and when suction grille is parked in upper limit position, can proofread and correct its inclined degree.
In order to achieve the above object, in-roof air-conditioner according to the present invention comprises a cell cube, this cell cube is installed in the ceiling and comprises a heat exchanger and a blower fan, one is located at the lip-deep decorative panel of ceiling, and the lifter plate that has an air cleaner, one end of lifting rope is fixed on this lifter plate, the other end of lifting rope is fixed on the pulley that is driven by a lift motor, make lifter plate move up and down described lifter plate by driving lift motor, and lifting rope is unclamped/rewind, it is characterized in that also comprising the current sinking checkout gear of the current sinking that is used for detecting described lift motor; Testing result when described current sinking checkout gear in described lifter plate moves up and down process surpasses; During predefined value, be used for the halt instruction device of output action halt instruction and the motor stop control that lift motor is stopped according to the action halt instruction that described halt instruction device sends.
According to the present invention, when lifter plate moved upward, it is constant that the lift motor current sinking keeps.Yet when lifter plate arrived upper limit position, the load that acts on the lift motor increased, and finally makes current drain surpass predetermined value.In this case, the current sinking checkout gear detects this kind situation, and exports the instruction that shuts down to the motor stop control, and the motor stop control ends the lift motor booth, so lifter plate is parked in upper limit position.In addition, when lifter plate moved downward the lower position, lift motor was rotated further.Therefore, pulley rotates with the rewind rope after all ropes unclamp.The load of lift motor is less when rope unclamps, thus the current sinking checkout gear to detect current drain less.Yet the load on the lift motor becomes greater than the dead weight of lifter plate during the rewind rope after rope unclamps, so current sinking increases.So the current sinking checkout gear detects bigger current sinking.If surpass predetermined value by the detected current sinking of current sinking checkout gear, export signal out of service from the halt instruction device, and the motor stop control stop lift motor.
In above-mentioned in-roof air-conditioner, in lifter plate moves upward process, when the testing result of current sinking checkout gear surpasses first setting value, or move downward in the process at lifter plate, when the testing result of current sinking checkout gear surpassed second setting value, the halt instruction device was exported instruction out of service.
According to above-mentioned in-roof air-conditioner, for example, moving upward in the upper limit position process when the load on the lift motor at lifter plate increases and current sinking when finally surpassing first setting value, and timer starts, and stops through lift motor behind the preset time.With first current sinking of setting for greater than the lift motor load, and it is to come predeterminedly according to the load that rises motor when lift grille moves upward, and this load increases when lifter plate arrives upper limit position.And, move downward in the process of lower limit allocation at lifter plate, when the load increase on the lift motor and current sinking finally surpassed second setting value, lift motor stopped at once.Be arranged to less than first setting value second, and when lifter plate moves up, set second and set value according to the current sinking of lift motor load.
In above-mentioned in-roof air-conditioner, during through a scheduled time, the motor stop control makes lift motor out of service after accepting the instruction out of service that the halt instruction device sends.
According to above-mentioned in-roof air-conditioner, shutting down from halt instruction device output stops through lift motor behind the preset time in the instruction.Therefore, after lifter plate arrived upper limit position, lift motor rotated preset time so that proofread and correct the inclination of lifter plate.
Also comprise a timer as above-mentioned in-roof air-conditioner, this timer is used for calculating preset time in shut down instruction back of output, wherein the output of response timer as a result the motor stop control according to the output of timer lift motor is shut down.
And, according to the present invention, a kind of control device that moves up and down that is used for controlling the in-roof air-conditioner lifter plate comprises: a lift motor that is used for moving up and down above-mentioned lifter plate, one is used for providing operating current so that the drive circuit of lift motor is rotated in front and back to described lift motor, one is used for exporting a control signal and controlling the controller of described drive circuit according to this control signal to described drive circuit, one is used for detecting at any time the current sinking of described lift motor so that export the current sinking detector of testing result to described controller, a timer that is used for calculating the scheduled time and exports this result of calculation to described controller, it is characterized in that in the process that described lifter plate moves up and down when surpassing predetermined value by the detected current sinking of described current sinking detector, described controller shuts down instruction so that described lift motor is stopped operating to described drive circuit output, thereby makes described lifter plate slack.
When being installed in above-mentioned control device in the in-roof air-conditioner, can obtain above-mentioned identical effect.
According to above-mentioned control device, the described scheduled time is set at time enough, so that make the whole periphery of described lifter plate arrive upper limit position that moves upward or the lower position that moves downward in good condition, therefore described lifter plate can be guaranteed the position of the level that maintains and stop at the upper limit or the lower position when arriving upper limit position or lower position.
Description of drawings
Fig. 1 represents the perspective view of an embodiment of in-roof air-conditioner.
Fig. 2 represents the plane of suction grille;
Fig. 3 represents the perspective view under the suction grille suspended state;
Fig. 4 represents the longitdinal cross-section diagram of in-roof air-conditioner;
Fig. 5 represents the block diagram of the control system of air regulator of the present invention;
Fig. 6 represents the flow chart of the handling process of preliminary stage of the present invention;
Fig. 7 represents the flow chart of the handling process of later stage of the present invention;
Fig. 8 represents another embodiment perspective view of in-roof air-conditioner of the present invention;
Fig. 9 represents the cross-sectional view of in-roof air-conditioner shown in Figure 8; With
Figure 10 represents the perspective view of a central plate.
The specific embodiment
The preferred embodiments of the present invention are described with reference to the accompanying drawings.
Fig. 4 is the longitdinal cross-section diagram of an in-roof air-conditioner.In Fig. 4, label 50 is represented air regulator.
Air regulator 50 comprises the unit main body 2 that is installed in the ceiling 1 and is processed by metallic plate, one packaged plaque 7, and center has the suction grille 9 (lifter plate) of an air entry 8, there is an air entry 3 at the center of above-mentioned decorative panel, have exhaust outlet 4 on its peripheral four side, above-mentioned exhaust outlet is located in the ceiling ceiling so that close a ceiling hole 5.
Label 10 is represented a typhoon machine, it comprises a turbo blade 11 and a fan motor 13 that is fixed on the ceiling ceiling 12, label 14 representatives are used for room air is guided into by air entry 8 jet hole of turbofan 11, label 15 is represented a rhone, this rhone has an inside protuberance 15a and an outside protuberance 15b, this groove is made by the annular foamed polystyrene in side, and label 16 represents one to be arranged on the exhaust side of turbo blade 11 so that around the plate fin type heat exchanger of blade.One heat guard of the circumferential surface of label 17 representative parcel cell cubes 2, label 21 is represented an air guidance unit that is used for the air through heat exchanger 16 heat exchange is guided to exhaust outlet 4, label 22 is represented a hanger bolt, cell cube 2 is suspended on the ceiling back timber by a hook spare by this hanger bolt, and label 24 represents one to be fixed on the downstream of suction grille 9 and to be suitable for purifying the air cleaner that sucks air.
Referring to Fig. 1 to 3, suction grille 9 is suspended on the cell cube 2 so that can freely move up and down by four lifting ropes 31.Article four, lifting rope 31 is all made by the wire or the resin silk that scribble the vinyl coating in its periphery, and certainly, it also can be a dish flexible cord.As shown in Figure 3, article four, an end 31a of lifting rope 31 links to each other with the hook 90a of suction grille reinforcement 90, and the other end 31c of two lifting ropes in four lifting ropes 31 walks around head pulley 100A, and meanwhile an other end 31c of two lifting ropes 31 walks around head pulley 100B by rope lead ring 200 or auxiliary pulley (not shown) respectively in addition.
As shown in Figure 2, four head pulley 100A and 100B are connected on the both ends of axle 110 and a pulley 100A and a pulley 100B pairing are provided with altogether.Each head pulley 100A and 100B are provided with a hole, and axle 110 injects in the hole of these head pulleys 100A and 100B, causes pulley to rotate freely around axle 110 by these holes.One fixture 120 is fixed on by some screws or like on the axle of axle 110, rotatory force transfer device (for example sheet spring), and electromagnet or other parts (back is called " helical spring ") 130 are inserted between fixture 120 and head pulley 100A and the 100B.
And, according to this embodiment, be used for moving up and down the mechanism 150 (being called " elevating mechanism " later on) of suction grille 9, be that elevating mechanism 150 comprises head pulley 100A and 100B, axle 110 comprises the clutch of rotatory force transfer device 130, with a following described suction grille lift motor (d.c. motor) 140, Deng, they are concentrated arranged on a support plate 151, and this support plate is arranged to extend in the opening portion of cell cube 2.
As shown in Figure 2, support plate 151 is fixed on the decorative panel 7, and above-mentioned elevating mechanism 150 is fixed on a side of decorative panel.In addition, the controller 160 that is used for controlling air regulator is located at the opening portion of cell cube 2 so that relative with support plate 151.Controller 160 and support plate 151 are arranged to extend in the so-called air-breathing opening portion of cell cube 2.That is, support plate 151 is arranged to extend in regional 190A, and controller 160 is arranged to extend in regional 190B, and obviously the existence of support plate 151 and controller 160 does not influence air-breathing function, because can suck air fully by remaining space 170.Above-mentioned elevating mechanism 150 is fixed on the decorative panel 7, and controller 160 is fixed on the cell cube 2.
To be described in detail elevating mechanism 150 below.
Axle 110 is installed on the support plate 151 by two bearings 152 free to rotately.Gear 153 is fixed on the centre of axle 110 basically.Gear 153 and gear 154 engagements, and gear 154 is fixed on the output shaft of motor 140 so that the above-mentioned suction grille of lifting (moving up and down).Label 141 is represented an electric capacity of motor, and label 143 is represented a correction timer.
As shown in Figure 1, a pullswitch (master cock) command unit of the suction grille 9 that moves up and down.Adopt a rotary drawing wiretap as pullswitch 51), when spurring this switch repeatedly, suction grille lift motor 140 is with " changeing forward ", " stop " and the order repetitive operation of " turning round ", suction grille 9 is also repeatedly with " descending motion " like this, " stop " " ascending motion ", the sequentially-operating of " stopping ".As mentioned above, by handling rotary switch, suction grille is with " descending motion ", and " stopping ", " ascending motion ", the order repetitive operation of " stopping ", therefore by a shirtsleeve operation, suction grille can be parked in any position.
Then, describe with reference to figure 5 and be used for device that lift motor 140 is stopped when suction grille 9 arrival upper limit positions or the lower position.
Be the instruction that response pullswitch 51 sends, controller 160 is to drive circuit 305 outputs one control signal, so that the rotation forward of control lift motor 140 and rotating backward.According to the control signal that controller 160 sends, drive circuit 305 drives lift motor 140 with a predetermined speed.
When lift motor 140 rotates when moving up suction grille 9 to direction.Current sinking IC output from drive circuit 305 to motor approximates 170mA, and this moment, suction grille did not arrive upper limit position.Yet, when suction grille 9 arrives upper limit position (one of suction grille 9 jiao (or side) is against living decorative panel 7 at least), the friction that lift motor 140 rotation opposings produce between head pulley 100A and 100B, the rotating speed of head pulley reduces or stops, and axle 11 is rotated further.The load that acts on motor 140 has like this increased the increment of corresponding friction.Therefore, the current sinking IC that is used for driver 305 output of lift motor 140 also increases, and at this moment, for example, the current sinking IC scope of motor 140 is at about 300mA extremely between about 350mA.
When lift motor 140 rotates so that when moving down suction grille 9 towards other direction, the current sinking IC of lift motor 140 equals about 60mA, and suction grille 9 does not arrive the lower position at this moment.Yet.Even when suction grille 9 arrival lower positions, lift motor 140 still rotates by the effect of drive circuit 305, current sinking IC is increased to the scope from about 100mA to about 170mA like this.That is, even lift motor 140 is still when rotating behind suction grille 9 as the above-mentioned arrival lower position, whole lifting rope unclamps rear wheel 100A and 100B rotates from pulley, so that rewind lifting rope 31.When pulley 100A and 100B rotate so that during rewind lifting rope 31, with the essentially identical load action of the load when suction grille 9 moves up on lift motor 140, the current sinking IC of lift motor 140 is increased to the scope of about 170mA extremely from about 100mA like this.
Drive circuit 305 is connected with current sinking checkout gear 307 by an amplifier 303.Current sinking checkout gear 307 detects the current sinking IC of lift motor 140 all the time, and detected current sinking IC is input in the controller 160.
When suction grille 9 moves upward and current sinking IC is increased to 300mA (first setting value X) or when higher from 170mA, the action of a lift motor 140 of controller 160 outputs is ceased and desisted order, and move downward and current sinking IC is increased to 100mA (second setting value Y) or when higher from 60mA, the order that controller 160 outputs stop lift motor 140 actions when suction grille 9.
When output makes lift motor 140 move the order that stops, being blocked to the control signal of drive circuit 305 outputs, so that stop to drive lift motor 140.Yet, when being in, suction grille moves up and current sinking IC is increased to 300mA (first setting value X) or when higher from 170mA, even exported the action of lift motor 140 and ceased and desisted order this moment, unless reach preset time (as 4 seconds) by a timer 309 calculating, otherwise can not block control signal to drive circuit 305 outputs yet, and when calculating reaches preset time (as 4 seconds), then block control signal, so that stop to drive lift motor 140 to drive circuit 305 outputs.
Under the situation that suction grille 9 moves upward, four lifting ropes 31 that sometimes are fixed on the suction grille 9 time difference may occur when rewind, even like this when a side draught gas grid 9 of lifting rope arrives upper limit position, other side draught gas grid at lifting rope does not arrive upper limit position fully, so suction grille 9 can not be moved upwards up to upper limit position ideally.Set the above scheduled time time of an abundance for, this time can guarantee at a lifting rope other lifting rope rewind that also can make progress ideally behind the rewind upwards ideally.
The operation of present embodiment then, is described with reference to figure 6 and 7.
At step S1, judge at first whether pullswitch 51 is handled.Can handle this switch by using a lower link or analog to spur this pullswitch 51.When judging that pullswitch 51 is handled, export the control signal of rotating lift motor 140 forward at step S2 slave controller 301, and this signal is input to drive circuit 305, so that rotate lift motor 140 forward and move down suction grille 9.At step S3, detect by current sinking checkout gear 307 from the current sinking IC of the lift motor 140 of drive circuit 305 output.In this case, suction grille 9 moves downward the lower position, detects the about 60mA of detected value of current sinking IC like this.
At step S4, judge once more whether pullswitch 51 is handled.If through judging, pullswitch 51 is handled, program forwards step S8 to so that block electric current in the lift motor 140, and suction grille 9 is stopped.Yet if pullswitch 51 is not handled, program forwards step S5 to, and controller 160 judges whether current sinking IC is increased to as the second setting value 100mA of Y or higher.If current sinking IC is not increased to the second setting value Y, program flow returns is to step S3.Otherwise if current sinking IC is increased to the second setting value Y, program forwards step S6 to, so that output comes the signal out of service of self-controller 160.
In step S7, controller 301 blocks the control signal that is input to drive circuit 305, has therefore blocked the electric current that offers lift motor 140, and suction grille 9 stops.Afterwards, program forwards step S9 to.
At step S9, judge whether pullswitch 51 is handled.If pullswitch 51 is not handled, program forwards step S8 to.Yet if pullswitch 51 is handled, program forwards step S10 to, so that slave controller 301 output control signals, thereby rotate backward lift motor 140, and control signal is input to drive circuit 305, so that rotate backward the lift motor 140 and the suction grille 9 that moves up.At step S11, current sinking checkout gear 307 detects the current sinking IC of lift motor 140.In this case, suction grille 9 moves upward to upper limit position, and the detected value of current sinking IC approximates for example 170mA like this.
At step S12, judge once more whether pullswitch 51 is handled.If pullswitch 51 is handled, program forwards step S13 to, and in step S13, controller 301 blocks the electric current and the suction grille 9 that offer lift motor 140 to be stopped.Yet if pullswitch 51 is not handled, program forwards step S14 to, and in step S14, controller 160 judges whether current sinking IC is increased to first setting value X, for example 300mA or higher.If current sinking IC does not reach the first setting value X, program forwards step S10 to.If current sinking IC reaches the first setting value X, at step S15, slave controller 160 is to timer 309 outputs one startup command, and then program forwards step S16 to.
At step S16, the response startup command, timer 309 starts.The setting-up time of timer 309 is set at for example 4 seconds.At step S11, judge that the time of when being calculated by timer 309 reaches setting-up time (for example 4 seconds).If the computing time of timer 309, program forwarded step S18 to when surpassing 4 seconds, so that slave controller 301 outputs signal out of service, program forwards step S19 to then.At step S19, the controller 301 of exporting signal out of service blocks the control signal that outputs to drive circuit 305, so lift motor 140 stalls, and suction grille 9 stops like this.Afterwards, program forwards step S1 to.
That is, when suction grille 9 arrived upper limit position, timer 309 calculated setting-up time (4 seconds).Lift motor 140 stops then, and therefore, lift motor 140 rotated about 4 seconds continuously.During this period of time (4 seconds), along with the rotation of axle, head pulley 100A and 100B rotate, and lifting rope 31 is rewind effectively, and therefore, four angles of suction grille 9 closely contact with decorative panel 7 basically.
According to this embodiment of the invention, move downward in the process at suction grille 9, by spurring above-mentioned pullswitch 51, suction grille 9 stops to move downward (step S8), so suction grille 9 can be parked in any position temporarily.Although not shown among Fig. 1, air cleanness filter 24 (Fig. 4) is installed in the top of suction grille 9.Therefore, suction grille 9 is drop-down and when stopping from ceiling 6 temporarily, can carry out in the lower.Change work such as filter 24 and cleaning and filtering 24.Therefore with carry out above-mentioned work at higher position and compare, not only can carry out work more easily, and improve the security of work.
According to this embodiment, thereby by stear drawing line switch 51 with CD-ROM drive motor 140 lifting suction grilles, driving shaft 110, to rotate head pulley 100A and 100B, head pulley 100A and 100B are connected with axle 110 by clutch, around the lifting rope 31 of head pulley 100A and 100B winding unclamp/rewind is so that automatically move up and down suction grille 9.Therefore, when air cleanness filter 24 is maintained, air cleanness filter 24 can be pulled down to lower position (or any position) and carry out this work.
And that a motor 140 only is set is just enough for the lifting suction grille, like this, can control cost, and simple in structure, to compare with the situation that a plurality of motors are set for the lifting suction grille, fault rate reduces.And when overload, the clutch action gets loose axle 110, prevents that motor 140 from burning.
According to this embodiment, when suction grille 9 moves down, detect the current sinking IC that supplies with lift motor 140, when current sinking IC when 60mA increases to 100mA, think that suction grille 9 reaches the lower position, at this moment, block the electric current of supplying with lift motor 140, so that lift motor 140 stops, therefore, suction grille 9 stops, thereby, with by use a cover frame for movement for example limit switch or analog the situation that suction grille 9 is parked in the lower position is compared, number of components is less, structure is simpler, and cost is lower and fault rate is also lower.
Similarly, when suction grille 9 moves up, detect to supply with the current sinking IC of lift motor 140, when current sinking IC when 170mA increases to 300mA, think that suction grille 9 reaches upper limit position.At this moment, the electric current of supplying with lift motor 140 is blocked, so that lift motor 140 stops, so suction grille 9 stops.Thereby, with by use a cover frame for movement for example limit switch or analog the situation that suction grille 9 is parked in the lower position is compared, number of components is less, structure is simpler, cost is lower and fault rate is also lower.
And, when suction grille 9 draws when hanging by lifting rope, four unnecessary maintenance equal in length of lifting rope and make suction grille 9 remain on a horizontal level.That is, suction grille 9 tiltables are hung.According to present embodiment, even when suction grille 9 is hung in obliquity, timer 309 operations after suction grille 9 arrives upper limit positions to calculate preset time (as 4 seconds), stop operating through lift motor 140 after 4 seconds then.In this scheduled time, head pulley 100A and 100B are rotated further until all lifting ropes 31 rewinds very desirable, so that suction grille 9 is hung to such an extent that very desirablely remain on a horizontal level and with till decorative panel 7 closely contacts until it.In this case, one of four lifting ropes 31 are fully around head pulley 100A, and the action that 100B recoils stops and stoping on the shaft portion of above-mentioned axle 100 rotating.
And, when lifting rope 31 carries out the rewind operation, even four length is unbalance between the lifting rope 31, when suction grille 9 final rewinds are good, unbalance in the length of 31 of lifting ropes by head pulley 100A, stopping of 100B and being relaxed, thus suction grille 9 closely contacts fully with decorative panel 7 and between seamless.
In addition, according to present embodiment, only need with controller 160, current sinking checkout gear 307 and timer 309 some, few parts is as making suction grille 9 stop at the mechanism of upper limit position after suction grille 9 moves up, so the quantity by suitable minimizing parts can reduce cost, and can reduce fault rate.
The invention is not restricted to the foregoing description, also can make various remodeling.
For example, behind suction grille 9 arrival upper limit positions, be used for relaxing the device of the length difference between the lifting rope of the left and right sides that is fixed on suction grille 9, be not limited to the combination of head pulley 100A and 100B and the axle 11 and the timer 309 of friction engagement mutually.For example, between main slip 100B and rope lead ring 200 pull bar can be housed, this pull bar upwards draws lifting rope 31 by spring force.
In this case, when suction grille 9 arrived upper limit position at a slant, the tension force of the lifting rope of locating one of in the left and right sides of the suction grille 9 that at first arrives upper limit position 31 increased, and it overcomes the drop-down pull bar of spring force.Therefore, by coming the rewind lifting rope corresponding to the drop-down amount of pull bar.So, the opposite side that does not arrive upper limit position of suction grille 9 can on move on to upper limit position.
In addition, rope lead ring 200 can be designed to upwards be promoted by spring force.In this case, when suction grille 9 arrived upper limit position at a slant, the tension force of the lifting rope of locating one of in the left and right sides of the suction grille 9 that at first arrives upper limit position 31 increased, and it overcomes and pushes away rope lead ring 200 under the spring force.Therefore, by coming rewind lifting rope 31 corresponding to the following amount that pushes away of rope lead ring 200.Therefore, the opposite side that does not arrive upper limit position of suction grille 9 can on move on to upper limit position.
And the present invention can be applicable to the air regulator that lifter plate as shown in Figures 8 to 10 is provided with air entry.
In Fig. 8, label 2000 is represented a box cell cube that is embedded in the ceiling.Heat exchanger 1600, blower fan 1000 grades are contained in as shown in Figure 9 the cell cube 2000.And the decorative panel 700 that two ends have an exhaust outlet 400 is fixed on the lower end of cell cube 2000, and a metallic plate filter receiver member 501 is fastened on the inside of the central opening of decorative panel 700.And air cleaner 240 contacts with the receiving unit 501a of filter receiver member 501.And a central plate (lifter plate) 900 of metallic plate is located at the front portion of the central opening of decorative panel 700, so that remains on the either side of its both sides as the space of air entry 300.
As shown in Figure 8, air cleaner 240 is installed on the central plate 900 by leg section 100, and these air cleaners 240 are suspended on the decorative panel 700 by four ropes 310, so that can move with respect to decorative panel 700 easy on and off.
As shown in figure 10, four lifting rope 310 end 310a separately are fixed on four suitable positions of central plate 900.Article four, the other end of lifting rope 310 stretches upwards, and twines around pulley 210, and along continuous straight runs stretches basically, is connected with having with an elevating mechanism 1500 of the first embodiment same structure then.Elevating mechanism 1500 is fixed on the metallic plate 1510, and this metallic plate 1510 is cross-over connection in the heart in the opening portion of as shown in Figure 8 decorative panel 700 basically.
According to the present invention, air cleaner 240 is located on the central plate 900 of metallic plate by leg section 100.Therefore, even move up and down in the process when producing vibration, drop on attached to the dust on the air cleaner 240 on the upper surface of central plate, and be collected on this surface at central part 900.Therefore, when changing air cleaner 240 or carrying out similar work, can prevent to drop on the floor attached to the dust on the filter 240, this makes indoor very cleaning.Therefore, be applied to be loaded on the factory relevant, in the time of in the air-conditioner that shop etc. are located, avoided the grey trouble that falls fully with food even work as the present invention.
According to the present invention, the testing result when the current sinking checkout gear in lifter plate moves up process is super When going out predefined value, export order out of service to stop lift motor. Therefore, when lifter plate arrival During upper limit position, lifter plate can stop. In this case, can reduce number of components, thereby reduce Cost, and reduce trouble.
According to the present invention, when lifter plate moves downward, lifter plate arrives the lower position, and current sinking equals Setting value or when higher, lift motor can stop at once. In this case, number of components also can reduce, So that cost, fault rate reduces.
According to the present invention, lifter plate can be freely move upward and move downward between conversion, and rising Fall in the ascending motion of plate and the descending motion and all can obtain above-mentioned effect. The process that moves upward at lifter plate In, when current sinking surpassed setting value, lift motor stopped after through a scheduled time. Therefore, exist After lifter plate arrives upper limit position, closely connect at four angles of lifter plate and the bottom surface of in-roof air-conditioner Touch in order to proofread and correct after the inclination of lifter plate, lifter plate can stop. In this case, the quantity of parts Can reduce, so that cost, fault rate reduces.
According to the present invention, in the process that lifter plate moves upward, when current sinking surpasses setting value, Stop through lift motor after the scheduled time. Therefore, after lifter plate arrives upper limit position, at lifter plate Four angles and the bottom surface close contact of in-roof air-conditioner, in order to rise after proofreading and correct the inclination of lifter plate Falling plate can stop. In this case, the quantity of parts can reduce, thereby makes cost, fault rate Also reduce.
Claims (6)
1, a kind of in-roof air-conditioner, it comprises a cell cube, this cell cube is installed in the ceiling and a heat exchanger and a blower fan is housed, one is located at the lip-deep decorative panel of ceiling, and the lifter plate that has an air cleaner, one end of lifting rope is fixed on this decorative panel, the other end of lifting rope is fixed on by a lift motor and orders about on the pulley of rotation, described lifting rope moves up and down described lifter plate and unclamps/rewind by ordering about lift motor, it is characterized in that described in-roof air-conditioner also comprises:
Be used for detecting the current sinking checkout gear of the current sinking of described lift motor;
In moving up and down process, described lifter plate when the testing result of described current sinking checkout gear surpasses predefined value, exports a halt instruction device that shuts down order; Stop the motor stop control of described lift motor with the instruction out of service of sending according to described halt instruction device.
2, require 1 described in-roof air-conditioner as uncle's profit, it is characterized in that in the process that described lifter plate moves upward, when the testing result of described current sinking checkout gear surpasses first setting value, perhaps move downward in the process at described lifter plate, when the testing result of described current sinking checkout gear surpassed second setting value, described halt instruction device was exported instruction out of service.
3, in-roof air-conditioner as claimed in claim 1 or 2 is characterized in that described motor stop control stops described lift motor when receiving after the instruction out of service of described halt instruction device output through a scheduled time.
4, in-roof air-conditioner as claimed in claim 3, it is characterized in that also comprising a timer, this timer is used for calculating preset time after having exported instruction out of service, and the output result of described motor stop control response timer stops lift motor.
5, a kind of control device that moves up and down that is used for controlling the lifter plate of in-roof air-conditioner, it comprises:
One is used for moving up and down the lift motor of described lifter plate;
One is used for providing operating current so that the drive circuit of lift motor is rotated in front and back to described lift motor;
One is used for to described drive circuit output control signal, and controls the controller of described drive circuit according to this control signal;
One is used for detecting at any time the current sinking of described lift motor so that export the current sinking detector of a testing result to described controller;
One is used for calculating the scheduled time and exports the timer of this result of calculation to described controller, wherein in the process that described lifter plate moves up and down when surpassing predetermined value by the detected current sinking of described current sinking detector, described controller is exported instruction out of service to described drive circuit, so that stop the rotation of described lift motor, thereby described lifter plate is stopped.
6, control device as claimed in claim 5, it is characterized in that described preset time is set at is enough to make the whole periphery of described lifter plate to arrive upper limit position that moves upward or required time of the lower position that moves downward ideally, and therefore described lifter plate can remain on the position of level when arrival upper limit position or lower position.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22596296A JP3552851B2 (en) | 1996-08-08 | 1996-08-08 | Ceiling-mounted air conditioner |
| JP225962/96 | 1996-08-08 | ||
| JP225962/1996 | 1996-08-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1177707A CN1177707A (en) | 1998-04-01 |
| CN1100237C true CN1100237C (en) | 2003-01-29 |
Family
ID=16837620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97118568A Expired - Fee Related CN1100237C (en) | 1996-08-08 | 1997-08-08 | Fitted-in-roof air-conditioner with controller making lifting plate move up and down |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0823598B1 (en) |
| JP (1) | JP3552851B2 (en) |
| KR (1) | KR100458541B1 (en) |
| CN (1) | CN1100237C (en) |
| DE (1) | DE69726228T2 (en) |
| ES (1) | ES2212017T3 (en) |
| PT (1) | PT823598E (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4224276B2 (en) * | 2002-10-15 | 2009-02-12 | 東芝キヤリア株式会社 | Embedded ceiling 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 |
| JP3998032B1 (en) * | 2006-04-18 | 2007-10-24 | ダイキン工業株式会社 | Air conditioner indoor unit |
| 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 |
| KR100787502B1 (en) * | 2006-12-05 | 2007-12-21 | 삼성전자주식회사 | Air conditioner on ceiling |
| KR101035010B1 (en) | 2009-02-25 | 2011-05-17 | 주식회사 엠.에스.라이팅 | Compound device for lighting and air-cleaning |
| KR101090093B1 (en) | 2009-02-25 | 2011-12-09 | 주식회사 엠.에스.라이팅 | Compound device for lighting and air-cleaning |
| JP5493495B2 (en) * | 2009-06-23 | 2014-05-14 | ダイキン工業株式会社 | Air conditioner indoor unit |
| CN103851697A (en) * | 2012-12-04 | 2014-06-11 | 海尔集团公司 | Hidden air conditioner |
| KR101662828B1 (en) * | 2015-04-14 | 2016-10-06 | (주)신한전기 | Up and down grill apparatus for ceiling type air conditioner |
| CN106091262B (en) * | 2016-06-17 | 2019-11-05 | 珠海格力电器股份有限公司 | Air conditioner panel control device and 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 |
| CN107687657B (en) * | 2017-08-04 | 2019-02-19 | 深圳市万佳安智能科技有限公司 | A kind of air cleaning facility with cleaning function for kitchen |
| KR102187748B1 (en) * | 2017-12-21 | 2020-12-07 | 엘지전자 주식회사 | Ceiling type indoor unit of air conditioner |
| CN108332287A (en) * | 2018-01-04 | 2018-07-27 | 珠海格力电器股份有限公司 | Air conditioner indoor unit, control method thereof and air conditioner |
| KR102351602B1 (en) | 2021-09-09 | 2022-01-14 | 장현실 | Ceiling type air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01315575A (en) * | 1988-06-15 | 1989-12-20 | Aichi Emerson Electric Co Ltd | Motor-driven blind |
| JP2532897Y2 (en) * | 1991-10-29 | 1997-04-16 | 三菱重工業株式会社 | Air conditioner |
| JPH0626667A (en) * | 1992-07-08 | 1994-02-04 | Mitsubishi Heavy Ind Ltd | Air-conditioner |
| JP2923150B2 (en) * | 1992-11-20 | 1999-07-26 | 三菱重工業株式会社 | Air conditioner |
| JP2528252B2 (en) * | 1993-05-10 | 1996-08-28 | 弘治 高林 | Ceiling mounted air conditioner |
-
1996
- 1996-08-08 JP JP22596296A patent/JP3552851B2/en not_active Expired - Fee Related
-
1997
- 1997-07-31 EP EP97113236A patent/EP0823598B1/en not_active Expired - Lifetime
- 1997-07-31 DE DE69726228T patent/DE69726228T2/en not_active Expired - Lifetime
- 1997-07-31 ES ES97113236T patent/ES2212017T3/en not_active Expired - Lifetime
- 1997-07-31 PT PT97113236T patent/PT823598E/en unknown
- 1997-08-07 KR KR1019970037739A patent/KR100458541B1/en not_active IP Right Cessation
- 1997-08-08 CN CN97118568A patent/CN1100237C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0823598A2 (en) | 1998-02-11 |
| EP0823598B1 (en) | 2003-11-19 |
| ES2212017T3 (en) | 2004-07-16 |
| JPH1054578A (en) | 1998-02-24 |
| CN1177707A (en) | 1998-04-01 |
| KR19980018467A (en) | 1998-06-05 |
| JP3552851B2 (en) | 2004-08-11 |
| KR100458541B1 (en) | 2005-06-13 |
| DE69726228D1 (en) | 2003-12-24 |
| EP0823598A3 (en) | 2001-04-11 |
| PT823598E (en) | 2004-04-30 |
| DE69726228T2 (en) | 2004-09-02 |
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