CN205156152U - Air conditioner drainage system and have its air conditioner internal unit - Google Patents
Air conditioner drainage system and have its air conditioner internal unit Download PDFInfo
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- CN205156152U CN205156152U CN201520987913.7U CN201520987913U CN205156152U CN 205156152 U CN205156152 U CN 205156152U CN 201520987913 U CN201520987913 U CN 201520987913U CN 205156152 U CN205156152 U CN 205156152U
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- 239000007788 liquid Substances 0.000 claims abstract description 224
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 104
- 238000001514 detection method Methods 0.000 claims abstract description 77
- 238000004378 air conditioning Methods 0.000 claims description 64
- 238000009434 installation Methods 0.000 claims description 5
- 239000003657 drainage water Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000002699 waste material Substances 0.000 description 4
- 230000011664 signaling Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an air conditioner drainage system and have its air conditioner internal unit, its include water storage device, controlling means and with drainage water pump and liquid level detection device that controlling means links to each other, wherein, the liquid level detection device includes a liquid level detection device and the 2nd liquid level detection device to there is the difference in height in the mounted position of a liquid level detection device and the 2nd liquid level detection device, makes the liquid level upper limit of a liquid level detection device is not higher than the liquid level lower limit of the 2nd liquid level detection device. The utility model discloses an air conditioner drainage system makes the detection of water level of air conditioner comdenstion water more accurate, is favorable to the action of control pump more rationally to the improvement is to the control accuracy of water pump. The utility model also discloses an air conditioner internal unit.
Description
Technical field
The utility model relates to air-conditioning technical field, is specifically related to a kind of air-conditioning drainage system.The utility model also relates to air-conditioning internal machine.
Background technology
Air-conditioning is when refrigeration, in air-conditioning internal machine, inevitably cause the generation of condensed water, if these water can not be got rid of from unit in time, finally can overflow unit because condensed water gathers too much, cause air-conditioning internal machine to drip or leak water problem, causing damage to user and inconvenience.Therefore, air-conditioning internal machine can carry discharge outlet usually, by Action of Gravity Field, water is discharged into the position lower than air-conditioning internal machine by drainpipe, such as, is discharged to outdoor.But, due to the restriction of installation environment, sometimes need condensed water to get rid of to the place set high than air-conditioning internal machine installation position, carry out draining with regard to needs by water pump in this case.In prior art, for air-cooled ducted air conditioner, draining many employings DC water pump or interchange water pump, and detect liquid level mainly through liquid-level switch, and feed back to mainboard after liquid level is converted into the signal of telecommunication, mainboard according to the signal combination airconditioning control logic obtained to the instruction of water pump transmit button.
But water pump idle running or draining problem not in time easily appear in the air-conditioning drainage system of prior art, and in prior art, the control of draining water pump affects comparatively large by air conditioning operating mode, and precision is not high.Reason is, the liquid-level switch of the air-conditioning drainage system of prior art only has two signaling points, thus more extensive to the control of water pump, be generally when liquid-level switch arrives upper limit level operating point and after continuing for some time, starting of air conditioner water pump also reports water completely to protect fault; When liquid-level switch arrives bottom limit level recovery point, water pump continues to draw water after a period of time again and stops or directly stopping.This control mode needs to control water pump start and stop in conjunction with air conditioning operating mode together with control logic, and it is too much that water pump control logic relies on condition to air conditioning operating mode and malfunction.This causes the control logic complexity of draining and reliability is lower, and especially when air-condition faults state and stopped status, the control of water pump is accurate not.Such as, also quit work if rear water pump shut down by air-conditioning, if air-cooled ducted air conditioner evaporimeter freezing when shutting down, a large amount of water can be produced again after the ice-out so on evaporimeter, still likely causing air-conditioning internal machine spilling water; And if shutdown quits work after rear water pump time delay a period of time again, when shutting down so in normal conditions, there will be no condensed water to produce after shutdown, but water pump operates always, this situation can produce noise on the one hand, also causes energy waste on the other hand.
Therefore, provide a kind of can sensed water level thus control air-conditioning drainage system and the water discharge control method thereof of draining water pump more subtly more accurately, be one of target that those skilled in the art is all the time pursued.
Utility model content
In view of the above present situation of prior art, main purpose of the present utility model is to provide a kind of air-conditioning drainage system, and it can detect the water level of condensed water more accurately, for the action controlling water pump, thus improves the control accuracy to water pump.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of air-conditioning drainage system, it comprises water storage device, control device and the draining water pump be connected with described control device and liquid level detection device, wherein, described liquid level detection device comprises the first liquid level detection device and the second liquid level detection device, and the installation site of the first liquid level detection device and the second liquid level detection device exists difference in height, make the liquid level upper limit of described first liquid level detection device not higher than the liquid level lower limit of described second liquid level detection device.
Preferably, the liquid level upper limit of described first liquid level detection device and the liquid level lower limit of described second liquid level detection device contour.
Preferably, described first liquid level detection device and the second liquid level detection device are float type level switch.
Preferably, described float type level switch comprises tongue tube.
Preferably, described control device is configured to the start and stop only controlling draining water pump according to the liquid level signal of described first liquid level detection device and the second liquid level detection device.
The object of another aspect of the present utility model is to provide a kind of air-conditioning internal machine, and it comprises foregoing air-conditioning drainage system.
Air-conditioning drainage system of the present utility model makes the water level detecting of air conditioner condensate water more accurate, is conducive to the action more reasonably controlling water pump, thus improves the control accuracy to water pump.Air-conditioning drainage system of the present utility model is convenient to overcome the water pump easily occurred in prior art and is dallied or draining problem not in time, and the control of water pump can be made by the impact of air conditioning operating mode.
Accompanying drawing explanation
Be described according to the preferred embodiment of air-conditioning drainage system of the present utility model and water discharge control method hereinafter with reference to accompanying drawing.In figure:
Fig. 1 is the schematic diagram of air-conditioning drainage system of the present utility model;
Fig. 2 is the control logic figure of the water discharge control method of air-conditioning drainage system of the present utility model.
Detailed description of the invention
For the present situation of prior art, one side of the present utility model provides a kind of air-conditioning drainage system, and it is such as air-conditioning internal machine, to get rid of the condensed water gathered.
As shown in Figure 1, this air-conditioning drainage system comprises water storage device (such as drip tray or water receiving tank) 1, control device (such as controlling mainboard) 2 and the draining water pump 3 be connected with described control device 2 and liquid level detection device, and the lead-out wire of liquid level detection device is all connected with the interface controlling mainboard with water pump line.Wherein, liquid level detection device is for detecting the liquid level in water storage device 1, and 3, draining water pump for getting rid of the condensed water in water storage device 1 under the control of control device 2.
Be with the main distinction of prior art air-conditioning drainage system, liquid level detection device of the present invention comprises the first liquid level detection device (such as liquid-level switch one) 4 and the second liquid level detection device (such as liquid-level switch two) 5, and, these two liquid level detection devices are mounted to there is difference in height each other, such as, make the liquid level upper limit of described first liquid level detection device 4 not higher than the liquid level lower limit of described second liquid level detection device 5.Preferably, this difference in height makes the liquid level lower limit of the liquid level upper limit of the first liquid level detection device 4 and the second liquid level detection device 5 contour.
By arranging two liquid level detection devices installation site existing difference in height, and utilize them to provide four signaling points judge that liquid level (as shown in Figure 1, liquid level one, liquid level two, liquid level three, when the liquid level upper limit of the first liquid level detection device 4 and the liquid level lower limit of the second liquid level detection device 5 not contour time, liquid level two will be a scope), level sensing can be made more accurate, thus more precisely reasonable to the control of water pump.
Such as, when two liquid level detection devices all export liquid level lower limit, also be, liquid-level switch one indicates that current level is liquid level one, liquid-level switch two indicates current level to be liquid level two, now can think that actual liquid level is no more than liquid level one (for low liquid level), without the need to starting draining water pump, thus avoid water pump idle running.
When the first liquid level detection device exports the liquid level upper limit, when second liquid level detection device exports liquid level lower limit, also be, liquid-level switch one and liquid-level switch two all indicate current level to be liquid level two, now can think that actual liquid level is liquid level two (for middle liquid level), now should start draining water pump and carry out draining, continue to prevent liquid level to increase.
Prescribe a time limit when two liquid level detection devices all export in liquid level, also be, liquid-level switch one indicates that current level is liquid level two, liquid-level switch two indicates current level to be liquid level three, now can think that actual liquid level is not less than liquid level three (is warning liquid level, exceed rear easy spilling), now should start draining water pump immediately and carry out draining, should consider whether drainage system exists fault, because liquid level should not arrive liquid level three when drainage system is working properly simultaneously.
When the first liquid level detection device exports liquid level lower limit, second liquid level detection device exports in liquid level and prescribes a time limit, also be, liquid-level switch one indicates that current level is liquid level one, liquid-level switch two indicates current level to be liquid level three, the situation of this obvious contradiction shows that at least one liquid-level switch breaks down, thus cannot judge actual liquid level.Due to the liquid-level switch of fault temporarily specifically can not be determined, now also should start draining water pump immediately and carry out draining, and the liquid-level switch place of fault should be checked immediately, also should consider whether drainage system exists fault (if the trouble-free words of liquid-level switch two simultaneously, then liquid level has met or exceeded warning liquid level, shows that drainage system probably also exists fault).
Therefore, by Appropriate application two liquid-level switch liquid level information, also make air-conditioning drainage system of the present utility model can overcome water pump idle running and draining problem not in time to a great extent.
Preferably, described first liquid level detection device 4 and the second liquid level detection device 5 are float type level switch, such as, preferably include tongue tube.Such as shown in Figure 1, liquid-level switch one and liquid-level switch two are float type level switch, and wherein, the ball float of liquid-level switch one can float between position A and position B, thus export the liquid level upper limit when position A, export liquid level lower limit when position B; The ball float of liquid-level switch two then can float between position C and position D, thus exports the liquid level upper limit when position C, exports liquid level lower limit when position D.By determining the setting height(from bottom) of two liquid-level switches, be then easy to three liquid levels determined required for control logic.
Preferably, as mentioned above, in air-conditioning drainage system of the present utility model, described control device 2 can be configured to the start and stop only controlling draining water pump 3 according to the liquid level signal of described first liquid level detection device 4 and the second liquid level detection device 5, and without the need to considering the operational mode of air-conditioning.Therefore, can no longer by the impact of air conditioning operating mode on the control of draining water pump when adopting air-conditioning drainage system of the present utility model, precision can improve thereupon, and the complexity of control logic can obviously decline.
Another aspect of the present utility model provides the water discharge control method of aforementioned air-conditioning drainage system, and its control logic figure as shown in Figure 2.This water discharge control method comprises step:
S1: the liquid level signal reading liquid level detection device;
S2: if the liquid level signal of any one in the first liquid level detection device and the second liquid level detection device represents the liquid level upper limit, then control draining water pump and open, then return step S1; Or, if the liquid level signal of the first liquid level detection device and the second liquid level detection device all represents liquid level lower limit, then control draining water pump and close (when before this for operating condition) or do not operate (when before this also for out-of-operation state), then return step S1.
Preferably, in step S2, if the liquid level signal of the first liquid level detection device represents the liquid level upper limit, and the liquid level signal of the second liquid level detection device represents liquid level lower limit, then only control draining water pump and open.
Preferably, in step S2, if the liquid level signal of the first liquid level detection device represents the liquid level upper limit, and the liquid level signal of the second liquid level detection device represents the liquid level upper limit, then control draining water pump and open, notify that user checks drainage system simultaneously.
Preferably, in step S2, if the liquid level signal of the first liquid level detection device represents liquid level lower limit, and the liquid level signal of the second liquid level detection device represents the liquid level upper limit, then control draining water pump and open, notify that user checks drainage system and liquid level detection device simultaneously.
Preferably, when draining pump operation, when air-conditioning shuts down, control draining water pump and remain in operation, until the liquid level signal of the first liquid level detection device and the second liquid level detection device all represents liquid level lower limit.
Therefore, no matter air-conditioning runs or standby under any pattern, and the detection signal that water pump controls to rely on completely liquid-level switch carries out start and stop, there will not be idle running, also there will not be spilling water.
Below composition graphs 2 describes the preferred embodiment of water discharge control method of the present utility model in detail again.
When air-conditioning obtains electric, no matter which kind of operational mode air-conditioning is in, all direct-detection liquid-level switch ball float position, and a point situation controls as follows:
(1) when liquid-level switch one ball float position is in B point (liquid level lower limit), liquid-level switch two ball float position is in D point (liquid level lower limit), can judge that now air-conditioning internal machine drip tray liquid level is not higher than the liquid level one (low liquid level) in Fig. 1, water pump does not now operate;
(2) when liquid-level switch one ball float position is in A point (the liquid level upper limit), liquid-level switch two ball float position is in D point (liquid level lower limit), can judge that now air-conditioning internal machine drip tray liquid level is in the liquid level two (middle liquid level) in Fig. 1, water pump now answers opening water discharge, to avoid liquid level too high;
(3) when liquid-level switch one ball float position is in A point (the liquid level upper limit), liquid-level switch two ball float position is in C point (the liquid level upper limit), can judge that now air-conditioning internal machine drip tray liquid level is not less than the liquid level three (warning liquid level) in Fig. 1, on the one hand, water pump now answers opening water discharge to ensure to continue draining, reduce the possibility of air-conditioning spilling water, on the other hand, should notify that user reports for repairment in time or checks drainage system, find out and can not cause detecting the too high reason of liquid level by proper drainage;
(4) when liquid-level switch one ball float position is in B point (liquid level lower limit), liquid-level switch two ball float position is in C point (the liquid level upper limit), due to obvious contradiction, can judge that now liquid-level switch detects liquid level occurs abnormal, can at least one liquid-level switch must be had to damage by preliminary judgement, and air-conditioning internal machine drip tray liquid level is larger higher than the possibility of the liquid level three (warning liquid level) in Fig. 1, on the one hand, water pump now answers opening water discharge to ensure to continue draining, reduce the possibility of air-conditioning spilling water, on the other hand, should notify that user reports for repairment in time or checks drainage system, check the reason detecting liquid level exception,
(5) once water pump starts running, the situation again exiting running must meet (1) dotted state (even if at holding state) simultaneously: namely liquid-level switch one ball float position is in B point (liquid level lower limit) and liquid-level switch two ball float position is in D point (liquid level lower limit), can judge that now air-conditioning internal machine drip tray liquid level is not higher than the liquid level one (low liquid level) in Fig. 1, water pump now can shut down, the noise that avoiding dallies causes and energy waste.
Water discharge control method of the present utility model adopts the action of double liquid level switch control rule draining water pump, and make air conditioner condensate water water level detecting more accurate, the action control of water pump is more reasonable.No matter air-conditioning runs or because of disorderly closedown, all only controls water pump start and stop with level switch signal under any situation, ensures that air-conditioning does not produce spilling water, water pump idle running also can not occur and cause producing abnormal sound and causing energy waste.
Water discharge control method of the present utility model makes full use of two liquid-level switches and carries out complex controll, directly adopt comparatively simple logic control water pump start and stop by four signaling points of liquid-level switch, make the logic of water pump action part and operation of air conditioner part relatively independent, non-interference, reduce the complexity of water pump control logic, avoid the problems such as mutual interference and erroneous judgement, improve reliability and the accuracy of water pump control.
Another aspect again of the present utility model additionally provides a kind of air-conditioning internal machine, and it comprises foregoing air-conditioning drainage system, or it utilizes water discharge control method noted earlier to carry out draining control.
Preferably, air-conditioning internal machine of the present utility model is air-cooled ducted air conditioner, cabinet-type air conditioner or wall hanging machine.
There is not water pump idle running or draining problem not in time in air-conditioning internal machine of the present utility model, reduces noise and energy waste.
Those skilled in the art will readily understand, under the prerequisite of not conflicting, above-mentioned each preferred version freely can combine, superpose.
Be to be understood that, above-mentioned embodiment is only exemplary, and it is nonrestrictive, when not departing from general principle of the present utility model, the various obvious or equivalent amendment that those skilled in the art can make for above-mentioned details or replacement, all will be contained in right of the present utility model.
Claims (6)
1. an air-conditioning drainage system, it comprises water storage device, control device and the draining water pump be connected with described control device and liquid level detection device, it is characterized in that, described liquid level detection device comprises the first liquid level detection device and the second liquid level detection device, and the installation site of the first liquid level detection device and the second liquid level detection device exists difference in height, make the liquid level upper limit of described first liquid level detection device not higher than the liquid level lower limit of described second liquid level detection device.
2. air-conditioning drainage system according to claim 1, is characterized in that, the liquid level upper limit of described first liquid level detection device and the liquid level lower limit of described second liquid level detection device contour.
3. air-conditioning drainage system according to claim 1 and 2, is characterized in that, described first liquid level detection device and the second liquid level detection device are float type level switch.
4. air-conditioning drainage system according to claim 3, is characterized in that, described float type level switch comprises tongue tube.
5. the air-conditioning drainage system according to claim 1 or 2 or 4, is characterized in that, described control device is configured to the start and stop only controlling draining water pump according to the liquid level signal of described first liquid level detection device and the second liquid level detection device.
6. an air-conditioning internal machine, is characterized in that, it comprises the described air-conditioning drainage system of one of claim 1-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520987913.7U CN205156152U (en) | 2015-12-02 | 2015-12-02 | Air conditioner drainage system and have its air conditioner internal unit |
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| CN201520987913.7U CN205156152U (en) | 2015-12-02 | 2015-12-02 | Air conditioner drainage system and have its air conditioner internal unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352163A (en) * | 2015-12-02 | 2016-02-24 | 珠海格力电器股份有限公司 | Air conditioning drainage system, drainage control method and air conditioning indoor unit |
| CN106642379A (en) * | 2016-11-16 | 2017-05-10 | 广州华凌制冷设备有限公司 | Noiseless movable air conditioner and control method and device thereof |
| CN109050864A (en) * | 2018-08-27 | 2018-12-21 | 珠海格力电器股份有限公司 | A kind of method, apparatus and water supply tank controlling liquid level |
-
2015
- 2015-12-02 CN CN201520987913.7U patent/CN205156152U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352163A (en) * | 2015-12-02 | 2016-02-24 | 珠海格力电器股份有限公司 | Air conditioning drainage system, drainage control method and air conditioning indoor unit |
| CN105352163B (en) * | 2015-12-02 | 2019-05-17 | 珠海格力电器股份有限公司 | Air-conditioning drainage system, water discharge control method and air-conditioning internal machine |
| CN106642379A (en) * | 2016-11-16 | 2017-05-10 | 广州华凌制冷设备有限公司 | Noiseless movable air conditioner and control method and device thereof |
| CN109050864A (en) * | 2018-08-27 | 2018-12-21 | 珠海格力电器股份有限公司 | A kind of method, apparatus and water supply tank controlling liquid level |
| CN109050864B (en) * | 2018-08-27 | 2023-10-27 | 珠海格力电器股份有限公司 | Method and device for controlling liquid level and water supplementing tank |
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