CN104296839A - Testing equipment and testing method for dehumidifier water level alarm device - Google Patents
Testing equipment and testing method for dehumidifier water level alarm device Download PDFInfo
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- CN104296839A CN104296839A CN201410520632.0A CN201410520632A CN104296839A CN 104296839 A CN104296839 A CN 104296839A CN 201410520632 A CN201410520632 A CN 201410520632A CN 104296839 A CN104296839 A CN 104296839A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 315
- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 claims description 10
- 238000010998 test method Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 abstract 2
- 238000003756 stirring Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000003643 water by type Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The invention discloses a testing device and a testing method for a dehumidifier water level alarm device. Wherein this testing arrangement includes control unit, first signal line, second signal line, third signal line, water pump and connecting line, wherein: the control part acquires a water level alarm signal of the first dehumidifier through a first signal line, acquires a water level alarm signal of the second dehumidifier through a second signal line, and controls the water pump to be turned on and/or turned off through a third signal line; and the water pump pumps water between the water tank of the first dehumidifier and the water tank of the second dehumidifier through the connecting pipeline. The testing device can automatically and simultaneously complete the testing of the water level alarm devices of the two dehumidifiers and also test the buoy assembly and the liquid level switch. And testing and simulating the reliability of the full protection of the liquid level switch, the buoy assembly and the whole dehumidifier under the actual condition. The unreal condition that the buoy assembly is manually shifted to verify is avoided, and the result is more real and accurate. A great deal of manpower is saved.
Description
Technical field
The present invention relates to field tests, particularly relate to a kind of testing apparatus and method of testing of dehumidifier level alarm for water.
Background technology
Be provided with the water tank of water storage in dehumidifier, need when Water in Water Tank is full artificially water to be poured out.Therefore, generally float module, level switch are set in the water tank of dehumidifier, and send the full alerting signal of water, to notify that the water of user's water tank is full by electrical appliance kit.But need test the full warning function of the relevant water of dehumidifier early stage.In conventional art, the water tank installing float module is taken out separately by tester, and people rotates for stirring float module, verify that it rotates reliability, and need verify that 5 groups of float module load in dehumidifier, float module is lifted, puts down, the adhesive of checking water level switch, disconnection action 40,000 times.There is the uncertainty that manual operation causes in test like this, and 40,000 water level switch adhesives on complete machine, disconnect action, consuming time longer, completely can not protect the protection act of rear dehumidifier in conjunction with complete machine water.
Summary of the invention
Based on this; be necessary in conventional art to test length consuming time, the at substantial manpower of dehumidifier level alarm for water function; and there is probabilistic problem of manual operation in test; there is provided a kind of and in conjunction with the full guard signal of the water of dehumidifier self, test accurately, and testing apparatus and the method for testing of the dehumidifier level alarm for water of manpower can be saved.
For realizing the testing apparatus of a kind of dehumidifier level alarm for water that the object of the invention provides, comprise control assembly, the first signal wire, secondary signal line, the 3rd signal wire, water pump and connecting line, wherein:
Described control assembly obtains the water-level alarm signal of the first dehumidifier by described first signal wire, is obtained the water-level alarm signal of the second dehumidifier by described secondary signal line, and controls unlatching and/or the closedown of described water pump by described 3rd signal wire;
Described water pump is drawn water between the water tank and the water tank of the second dehumidifier of described first dehumidifier by described connecting line.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, described connecting line is provided with the first valve member and the second valve member; And,
When first valve member is opened, the water inlet of described water pump is communicated with the water tank of described first dehumidifier, and the water delivering orifice of described water pump is communicated with the water tank of described second dehumidifier;
When second valve member is opened, the water inlet of described water pump is communicated with the water tank of described second dehumidifier, and the water delivering orifice of described water pump is communicated with the water tank of described first dehumidifier.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, the middle part of described connecting line is provided with two branch roads, and two ends are respectively a main line, and described two branch roads are all connected with described main line; And,
Branch road described in every bar is provided with two valves, described water inlet and described water delivering orifice are connected between two valves of a branch road in two described branch roads respectively.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, two described branch roads are respectively the first branch road and the second branch road, and described water inlet is arranged on described first branch road, and described water delivering orifice is arranged on described second branch road; And,
Described first branch road is provided with the first valve and the 3rd valve, described second branch road is provided with the second valve and the 4th valve;
Described first valve and the second valve form the first valve member, and described 3rd valve and the 4th valve form the second valve member.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, described control assembly controls opening or closing of described first valve member and described second valve member, and described first valve member is when opening, described second valve member is closed; When described first valve member is closed, described second valve member is opened.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, described valve is electrovalve.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, also comprise the power lead be electrically connected with described control assembly, described control assembly connects power supply by described power lead.
As a kind of embodiment of testing apparatus of dehumidifier level alarm for water, described control assembly is controller.
Based on the method for testing of a kind of dehumidifier level alarm for water of same inventive concept, comprise the following steps:
Connecting line is used to be communicated with the water tank of the first dehumidifier with the second dehumidifier by water pump;
In the water tank of the first dehumidifier, fill water, in the water tank of the second dehumidifier, inject the water of predetermined amount;
Use water pump to draw water in the water tank of described second dehumidifier from the water tank of described first dehumidifier, and use the full guard signal of the water of the first dehumidifier described in control assembly continuous reception and described second dehumidifier;
When described control assembly receives the full guard signal of described water, the direction of drawing water of described water pump is then converted by the valve member controlled on described connecting line, described water pump is drawn water from the water tank of the full dehumidifier of water in the water tank of another dehumidifier, until the full guard signal of the water receiving preset times; And,
When injecting the water of predetermined amount in the water tank of described second dehumidifier, the water tank of described second dehumidifier does not reach the full state of water.
As a kind of embodiment of method of testing of dehumidifier level alarm for water, further comprising the steps of:
Judge to continue not detect whether the time of the full guard signal of described water reaches Preset Time, if so, then controls described water pump out of service.
Beneficial effect of the present invention comprises:
The testing apparatus of a kind of dehumidifier level alarm for water provided by the invention and method of testing.Its testing apparatus comprises the water pump alternately drawn water from the water tank of two dehumidifiers.It can complete the test to two dehumidifier level alarm for waters automatically, simultaneously.And because need the cooperation of float module, level switch in test process, also just these two parts are also tested simultaneously.And test simulation loom in practical situations both, the checking of the full protection reliability of level switch, float module and complete machine water, avoid people to be the untrue situation of stirring the checking of float module monomer, result is true and accurate more.More save a large amount of manpowers.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of the testing apparatus of a kind of dehumidifier level alarm for water of the present invention;
Fig. 2 is the process flow diagram of a specific embodiment of the method for testing of a kind of dehumidifier level alarm for water of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the testing apparatus of dehumidifier level alarm for water of the present invention and method of testing are described.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The testing apparatus of the dehumidifier level alarm for water of one embodiment of the invention, as shown in Figure 1, comprises control assembly 100, first signal wire 200, secondary signal line 300, the 3rd signal wire 400, water pump 500 and connecting line 600.Wherein: control assembly 100 obtains the water-level alarm signal of the first dehumidifier 700 by the first signal wire 200, obtained the water-level alarm signal of the second dehumidifier 800 by secondary signal line 300, and control unlatching and/or the closedown of water pump 500 by the 3rd signal wire 400.And water pump 500 is drawn water between the water tank and the water tank of the second dehumidifier of the first dehumidifier by connecting line 600.
The first described dehumidifier 700 and the second dehumidifier 800 are two dehumidifiers that will carry out water level switch, float module and level alarm for water.When testing, open the freeing port of two dehumidifiers, and water pump being opened always, drawing water back and forth between the water tank of two dehumidifiers.Wherein, when the water tank of two dehumidifiers is different, water is full; when the Water in Water Tank in a dehumidifier is full; it sends the full guard signal of water; after control assembly receives the full guard signal of water; control linkage pipeline makes water pump 500 stop water filling in the full water tank of water, but draws water the reverse water tank full from water, and in the full water tank of not water water being injected into another dehumidifier.Thus move in circles and to test the new of level alarm for water of two dehumidifiers.
It should be noted that herein; when water pump 500 is in the water tank of dehumidifier during water filling; water level in water tank for dehumidification machine can rise gradually; float module in dehumidifier floats, and drives roller to roll, when final water is full; level switch action; dehumidifier stops dehumidifying, sends the full guard signal of water, and shows water and completely report to the police.Meanwhile, the control assembly of this testing apparatus also receives the full guard signal of water that dehumidifier sends, and records a test result, and controls the conversion of drawing water of water pump 500, and then another dehumidifier is carried out to the test of level alarm for water next time.
Wherein, control assembly 100 can realize controlling water pump and opens and disconnect, and can accept extraneous input signal, simply judges, most of opertaing device can be adopted to realize to signal.Preferably, controller can be adopted as control assembly 100, realize the control to water pump.
As can be seen from the above description, the testing apparatus of the dehumidifier level alarm for water of the embodiment of the present invention, can complete the test to two dehumidifier level alarm for waters automatically, simultaneously.And because need the cooperation of float module, level switch in test process, also just these two parts are also tested simultaneously.And test simulation dehumidifier in practical situations both, the reliability that level switch, float module and complete machine water are completely protected, avoiding people is the untrue situation of stirring the checking of float module monomer, and result is true and accurate more.More save a large amount of manpowers.
It should be noted that in addition, control assembly 100 can a control water pump closedown and do not control the unlatching of water pump, when the level alarm for water of a certain dehumidifier breaks down, it is out of service that control assembly 100 can control water pump, also namely stops whole test.And the unlatching of the unlatching of water pump and whole testing apparatus is all by artificial Non-follow control.Certainly, the opening and closing that control assembly 100 can be controlled simultaneously water pump 500 are just better.As long as start testing apparatus side control assembly 100 after now test starts can automatically open water pump 500, make the use of whole equipment more convenient.And if control assembly 100 can only control the unlatching of water pump 500, then may be a bit weaker in intelligent control water pump quits work.
In the embodiment of the testing apparatus of a dehumidifier level alarm for water wherein, connecting line 600 is provided with the first valve member 900 and the second valve member 1000.When first valve member 900 is opened, the water inlet 510 of water pump 500 is communicated with the water tank of the first dehumidifier 700, the water delivering orifice 520 of water pump 500 is communicated with the water tank of the second dehumidifier 800, now water pump draws water from the water tank of the first dehumidifier 700, water filling in the water tank of the second dehumidifier 800, tests the level alarm for water of the second dehumidifier 800.And the second valve member 1000 is when opening, the water inlet 510 of water pump 500 is communicated with the water tank of the second dehumidifier, the water delivering orifice 520 of water pump 500 is communicated with the water tank of the first dehumidifier, now water pump draws water from the water tank of the second dehumidifier 800, water filling in the water tank of the first dehumidifier 700, tests the level alarm for water of the second dehumidifier 700.
By the setting of valve member on connecting line 600, realize the simple control to the conversion of pumping for water pump direction.
As a kind of embodiment, as shown in Figure 1, arrange two branch roads at the middle part of connecting line 600, the first branch road 610 and the second branch road 620, two ends are respectively a main line, and two branch roads are all connected with main line.And every bar branch road is provided with two valves, water inlet 510 and water delivering orifice 520 are connected between two valves of a branch road in two branch roads respectively.
Further, water inlet 510 is arranged on the first branch road 610, and water delivering orifice 520 is arranged on the second branch road 620.First branch road 610 is provided with on the first valve 601 and the 3rd valve 603, second branch road 620 and is provided with the second valve 602 and the 4th valve 604; First valve 601 and the second valve 602 form the first valve member the 900, three valve 603 and the 4th valve 604 forms the second valve member 1000.This be arranged through an overall connecting line 600 to realize two water tank for dehumidification machine between connection.
The both sides of connecting line 600 are all trunk roads, and centre is provided with two branch roads, the direction of the Valve controlling current on branch road.As the first valve 601 and the second valve 602 (i.e. the first valve member 900) open time, water in the water tank of the first dehumidifier 700 is under the dynamic action of water pump, first through the first valve 601, again along branch road 610 towards right direction flowing in Fig. 1, then along in figure upwards the direction of arrow enter water pump from the water inlet 510 of water pump 500, flow out from the water delivering orifice 520 of water pump again, flow in many second branch roads 620 along illustrated downward arrow, eventually pass the second valve 602 and flow in the water tank of the second dehumidifier 800.On the contrary, when the first valve 601 and the second valve 602 are closed, when 3rd valve 603 and the 4th valve 604 are opened, water pump 500 draws water from the water tank of the second dehumidifier 800, first the 3rd valve 603 on the first branch road 610 is flowed through, enter water pump along the upwards direction of arrow by water inlet 510 again, flow into by the main line in left side in the water tank of the first dehumidifier 700 after the 4th valve on the second branch road 620 along downward arrow reverse direction flow after being flowed out by the water delivering orifice 520 of water pump 500.
Wherein, the two states of four valves is coordinated signals, and when the state of the first valve 601 and the second valve 602 is for opening, the state of the 3rd valve 603 and the 4th valve 604 is automatically for closing; On the contrary, when the state of the 3rd valve 603 and the 4th valve 604 is for opening, the state of the first valve 601 and the second valve 602 is automatically for closing.Coordinated signals like this is simple and convenient.
Preferably, as a kind of embodiment, electrovalve can be selected for valve.Can be realized by the simple control of control assembly.
In addition, in other embodiments, also can other forms also can be adopted to realize by connecting line 600, as arranged two branch roads respectively at the water inlet of water pump and water delivering orifice, two branch roads on every limit are respectively put in two water tanks, insert two water pipes in each water tank like this, every bar water pipe (branch road) also arranges valve respectively, controls the object that corresponding valve also can realize alternately drawing water from two water tanks.
In addition, the testing apparatus of dehumidifier level alarm for water is also provided with the power lead 1100 be electrically connected with described control assembly 100, and described control assembly 100 connects power supply by described power lead 1100.
Based on identical design, use aforesaid testing apparatus, the present invention also provides a kind of method of testing of dehumidifier level alarm for water, as shown in Figure 2, comprises the following steps:
S100, uses connecting line to be communicated with the water tank of the first dehumidifier with the second dehumidifier by water pump.The unit of two dehumidifiers can be placed side by side when not affecting normal operation, and opened by the continuous drainage mouth of dehumidifier.And by first signal wire (200) of aforementioned testing apparatus and secondary signal line (300) respectively guard signal full of the water in two dehumidifier electrical appliance kits be connected.
S200, fills water in the water tank of the first dehumidifier, injects the water of predetermined amount in the water tank of the second dehumidifier.Wherein, when injecting the water of predetermined amount in the water tank of described second dehumidifier, the water tank of described second dehumidifier does not reach the full state of water.Preferably, the water of predetermined amount can be the water level of in water tank 1/3.
S300, uses water pump to draw water in the water tank of described second dehumidifier from the water tank of described first dehumidifier, and uses the full guard signal of the water of the first dehumidifier described in control assembly continuous reception and described second dehumidifier.
S400; when described control assembly receives the full guard signal of described water; the direction of drawing water of described water pump is then converted by the valve member controlled on described connecting line; described water pump is drawn water from the water tank of the full dehumidifier of water in the water tank of another dehumidifier, until the full guard signal of the water receiving preset times.Described preset times is the number of times wanted the test that the level alarm for water of dehumidifier carries out, as being set to 10000 times or more times.
In the method for testing of the dehumidifier level alarm for water of other embodiments, can also comprise the following steps:
S500, judges to continue not detect whether the time of the full guard signal of described water reaches Preset Time, if so, then controls described water pump out of service.This step continues to carry out testing in the whole process of carrying out, the amount injecting water in the setting of concrete time and water tank has relation, when Water in Water Tanks is more, the Preset Time arranged is shorter, because the short period just can fill up water tank from higher water level under normal circumstances, and when initially injecting water tank less, then need to arrange longer Preset Time, because need the longer time water tank could be filled water.
If test normal termination, stop after namely reaching preset times, then the level alarm for water of two dehumidifiers is all qualified.But, if test midway stop, then one of them dehumidifier level alarm for water not by test, now, made a record by tester, after test completes, provide test report.
Above-mentioned method of testing, can carry out level alarm for water test to two dehumidifiers automatically, and whole test process can complete substantially automatically, avoids the uncertainty of manual operation, it is more accurate to test simultaneously.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the testing apparatus of a dehumidifier level alarm for water, it is characterized in that, comprise control assembly (100), the first signal wire (200), secondary signal line (300), the 3rd signal wire (400), water pump (500) and connecting line (600), wherein:
Described control assembly (100) obtains the water-level alarm signal of the first dehumidifier (700) by described first signal wire (200), obtained the water-level alarm signal of the second dehumidifier (800) by described secondary signal line (300), and control unlatching and/or the closedown of described water pump (500) by described 3rd signal wire (400);
Described water pump (500) is drawn water between the water tank and the water tank of the second dehumidifier of described first dehumidifier by described connecting line (600).
2. the testing apparatus of dehumidifier level alarm for water according to claim 1, is characterized in that, described connecting line (600) is provided with the first valve member (900) and the second valve member (1000); And,
When first valve member (900) is opened, the water inlet (510) of described water pump (500) is communicated with the water tank of described first dehumidifier (700), and the water delivering orifice (520) of described water pump (500) is communicated with the water tank of described second dehumidifier (800);
When second valve member (1000) is opened, the water inlet (510) of described water pump (500) is communicated with the water tank of described second dehumidifier (800), and the water delivering orifice (520) of described water pump (500) is communicated with the water tank of described first dehumidifier (700).
3. the testing apparatus of dehumidifier level alarm for water according to claim 2, is characterized in that, the middle part of described connecting line (600) is provided with two branch roads, and two ends are respectively a main line, and described two branch roads are all connected with described main line; And,
Branch road described in every bar is provided with two valves, described water inlet (510) and described water delivering orifice (520) are connected between two valves of a branch road in two described branch roads respectively.
4. the testing apparatus of dehumidifier level alarm for water according to claim 3, it is characterized in that, article two, described branch road is respectively the first branch road (610) and the second branch road (620), described water inlet (510) is arranged on described first branch road (610), and described water delivering orifice (520) is arranged on described second branch road (620); And,
Described first branch road (610) is provided with the first valve (601) and the 3rd valve (603), described second branch road (620) is provided with the second valve (602) and the 4th valve (604);
Described first valve (601) and the second valve (602) form the first valve member (900), and described 3rd valve (603) and the 4th valve (604) form the second valve member (1000).
5. the testing apparatus of dehumidifier level alarm for water according to claim 3, it is characterized in that, described control assembly (100) controls opening or closing of described first valve member (900) and described second valve member (1000), and described first valve member (900) is when opening, described second valve member (1000) is closed; When described first valve member (900) is closed, described second valve member (1000) is opened.
6. the testing apparatus of the dehumidifier level alarm for water according to claim 3 or 4, is characterized in that, described valve is electrovalve.
7. the testing apparatus of dehumidifier level alarm for water according to claim 1, it is characterized in that, also comprise the power lead (1100) be electrically connected with described control assembly (100), described control assembly (100) connects power supply by described power lead (1100).
8. the testing apparatus of dehumidifier level alarm for water according to claim 1, is characterized in that, described control assembly (100) is controller.
9. a method of testing for dehumidifier level alarm for water, is characterized in that, comprises the following steps:
Connecting line is used to be communicated with the water tank of the first dehumidifier with the second dehumidifier by water pump;
In the water tank of the first dehumidifier, fill water, in the water tank of the second dehumidifier, inject the water of predetermined amount;
Use water pump to draw water in the water tank of described second dehumidifier from the water tank of described first dehumidifier, and use the full guard signal of the water of the first dehumidifier described in control assembly continuous reception and described second dehumidifier;
When described control assembly receives the full guard signal of described water, the direction of drawing water of described water pump is then converted by the valve member controlled on described connecting line, described water pump is drawn water from the water tank of the full dehumidifier of water in the water tank of another dehumidifier, until the full guard signal of the water receiving preset times; And,
When injecting the water of predetermined amount in the water tank of described second dehumidifier, the water tank of described second dehumidifier does not reach the full state of water.
10. the method for testing of dehumidifier level alarm for water according to claim 9, is characterized in that, further comprising the steps of:
Judge to continue not detect whether the time of the full guard signal of described water reaches Preset Time, if so, then controls described water pump out of service.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410520632.0A CN104296839B (en) | 2014-09-30 | 2014-09-30 | Testing equipment and testing method for dehumidifier water level alarm device |
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| CN201410520632.0A CN104296839B (en) | 2014-09-30 | 2014-09-30 | Testing equipment and testing method for dehumidifier water level alarm device |
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| CN104296839A true CN104296839A (en) | 2015-01-21 |
| CN104296839B CN104296839B (en) | 2018-02-09 |
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| CN201410520632.0A Expired - Fee Related CN104296839B (en) | 2014-09-30 | 2014-09-30 | Testing equipment and testing method for dehumidifier water level alarm device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109883519A (en) * | 2019-03-15 | 2019-06-14 | 河海大学 | A kind of water-level gauge testing calibration device and its detection method using twin-well |
| CN110671752A (en) * | 2019-10-10 | 2020-01-10 | 海信（广东）空调有限公司 | Water fullness control method and device of mobile air conditioner |
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| EP0205056A1 (en) * | 1985-06-03 | 1986-12-17 | LGZ LANDIS & GYR ZUG AG | Flow controller |
| CN101788322A (en) * | 2010-01-29 | 2010-07-28 | 重庆长安汽车股份有限公司 | Automobile fuel automatic pumping and injecting test device |
| CN202216740U (en) * | 2011-08-25 | 2012-05-09 | 山东省科学院海洋仪器仪表研究所 | Water level sensor and water level switch detection device |
| CN202938888U (en) * | 2012-11-14 | 2013-05-15 | 珠海格力电器股份有限公司 | Detection device |
| CN204115828U (en) * | 2014-09-30 | 2015-01-21 | 珠海格力电器股份有限公司 | Testing equipment for dehumidifier water level alarm device |
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2014
- 2014-09-30 CN CN201410520632.0A patent/CN104296839B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0205056A1 (en) * | 1985-06-03 | 1986-12-17 | LGZ LANDIS & GYR ZUG AG | Flow controller |
| CN101788322A (en) * | 2010-01-29 | 2010-07-28 | 重庆长安汽车股份有限公司 | Automobile fuel automatic pumping and injecting test device |
| CN202216740U (en) * | 2011-08-25 | 2012-05-09 | 山东省科学院海洋仪器仪表研究所 | Water level sensor and water level switch detection device |
| CN202938888U (en) * | 2012-11-14 | 2013-05-15 | 珠海格力电器股份有限公司 | Detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109883519A (en) * | 2019-03-15 | 2019-06-14 | 河海大学 | A kind of water-level gauge testing calibration device and its detection method using twin-well |
| CN110671752A (en) * | 2019-10-10 | 2020-01-10 | 海信（广东）空调有限公司 | Water fullness control method and device of mobile air conditioner |
| CN110671752B (en) * | 2019-10-10 | 2020-12-15 | 海信（广东）空调有限公司 | Water fullness control method and device of mobile air conditioner |
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| CN104296839B (en) | 2018-02-09 |
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