CN101776504A - Automatic vacuumizing alarm device and method - Google Patents
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- CN101776504A CN101776504A CN200910000167A CN200910000167A CN101776504A CN 101776504 A CN101776504 A CN 101776504A CN 200910000167 A CN200910000167 A CN 200910000167A CN 200910000167 A CN200910000167 A CN 200910000167A CN 101776504 A CN101776504 A CN 101776504A
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- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
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- 239000007791 liquid phase Substances 0.000 description 2
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- 238000001944 continuous distillation Methods 0.000 description 1
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Abstract
The invention provides an automatic vacuumizing alarm device and method, wherein the automatic vacuumizing alarm device (100) comprises: the judging module (102) is used for judging whether the vacuum degree in the vacuumizing volume reaches a preset value during the first timing period; the first timing module (104) is used for starting first timing at the starting moment of the vacuumizing process and stopping timing when the judgment result of the judgment module is that the vacuum degree reaches a preset value or the first timing is over; the second timing module (106) is used for starting second timing when the judgment result of the judgment module is that the vacuum degree reaches the preset value; and an alarm module (108) for issuing a second alarm upon expiration of the first time period or issuing a first alarm upon expiration of the second time period. The invention realizes the beneficial effects of automatically judging whether the vacuum degree in the vacuumized volume meets the requirement or not and sending out a corresponding alarm aiming at the judgment result, thereby improving the production efficiency.
Description
Technical field
The present invention relates to refrigerating field, more specifically, relate to a kind of automatic vacuumizing alarm device and method.
Background technology
Two adjacent operations are arranged: vacuumize-cooling medium charging on the air-conditioning production line.Produce the air-conditioning of going up employing in the past and vacuumized technology, judge the vacuum tightness that vacuumizes by artificial experience (evacuated time permanent), judge that by the reading of artificial observation vacuum meter the vacuum tightness that vacuumizes judges whether its vacuum values meets technological requirement, therefore the back can occur vacuumizing and not do over again or vacuumize the phenomenon that " excessive " loses time, thereby influence production efficiency because of vacuum tightness meets technological requirement.Such determination methods occurs subjective erroneous judgement unavoidably and causes carrying out next step cooling medium charging, and this determination methods increased workman's workload, thereby has influenced production efficiency and product quality.
Therefore, the alarm method that vacuumizes of available technology adopting normally makes the time relay pick up counting (artificial trigger) by pressing switch manually vacuumizing the zero hour.That is, the time relay only serves as the effect of " stopwatch countdown " in warning device, judges its vacuum tightness whether (timing covers whole vacuum) up to standard when its is responsible for from " vacuumizing (artificially connecting the switch timing) " to " countdown end ".But because when vacuumizing beginning, just can be extracted into the value (gaseous impurities is found time) of closing on minimum point within a short period of time, keep one section mobile equilibrium (liquid phase impurity constantly volatilizees, the pumpage of the continuous distillation of solid impurity and vacuum pump form and produce and the mobile equilibrium of extracting out) afterwards.When being evacuated down to minimum point rear enclosed vessel port, because inevitably leak and the distillation of the interior solid impurity of volume and the volatilization of liquid phase impurity in the container, make the vacuum values in the container have the feature that bounce-back raises, but the value of bounce-back and nonlinear unlimited increase.So, thereby make the False Rate of this detection method increase because the quilt in the vacuum is taken out the decline degree of container vacuum tightness and the randomness and the undulatory property of time relation.
For example, the vacuum tightness of the vacuum tank of expectation air conditioner is 22Pa, can when finding time this vacuum tank be extracted into 20Pa so.The way of prior art is, time set is 3min, and the vacuum tightness setting value is 20Pa, connect to pick up counting behind the pipe for the container of sealing and found time.Because the uncertain factor of finding time make that its vacuum tightness only drops to 21Pa-23Pa (greater than 20Pa) when being evacuated to 3min, and warning device still can be sent the underproof warning of sealing of this container, thereby this container is done over again.
Therefore, implement in the process of the present invention, find that there is the problem of inefficiency at least in prior art the inventor.
Summary of the invention
Therefore, the purpose of the embodiment of the invention promptly be to provide a kind of can raise the efficiency vacuumize warning device and method.
According to an aspect of the present invention, provide a kind of automatic vacuumizing alarm device, having comprised: judge module is used for judging whether the vacuum tightness that vacuumizes in the volume reaches predetermined value during first timing; First timing module is used for beginning first timing zero hour in vacuum, and is that vacuum tightness stops timing when reaching predetermined value or first timing expiration in the judged result of judge module; Second timing module when being used for judged result at judge module and being vacuum tightness and reaching predetermined value, begins second timing; And alarm module, send first when being used for when first timing expiration of first timing module, sending second warning or second timing expiration and report to the police at second timing module.
Wherein, judge module is the pressure detection module.
Preferably, first reports to the police is the warning that prompting stops to vacuumize, and second warning is that prompting vacuumizes unusual warning.
Wherein, first timing module and second timing module all are time relays.
Preferably, this automatic vacuumizing alarm device also comprises: display module is used to show the detected force value of pressure detection module.
According to a further aspect in the invention, also provide a kind of automatic vacuumizing alarm method, having comprised: volume is begun to vacuumize and begins first timing, during judge whether the vacuum tightness of volume reaches predetermined value; If reach predetermined value, then stop first timing, and begin second timing, when second timing expires, send first and report to the police; And if first timing expiration time do not reach predetermined value yet, then send second and report to the police.
Wherein, whether the vacuum tightness of judging volume reaches predetermined value and comprises: by utilizing the pressure detection module to detect to vacuumize the force value in the volume; Detected force value and scheduled pressure value are compared; If force value is equal to or less than scheduled pressure value, then vacuum tightness reaches predetermined value; And if force value is greater than scheduled pressure value, then vacuum tightness does not reach predetermined value.
Preferably, first reports to the police is the warning that prompting stops to vacuumize, and second warning is the warning that volume is returned in prompting.
Wherein, first timing module and second timing module all are time relays.
Preferably, above-mentioned automatic vacuumizing alarm method also comprises: vacuumize during first timing and second timing; When obtaining first warning or second warning, finish to vacuumize.
The beneficial effect of the embodiment of the invention is, judges in advance by judge module whether container vacuumizes and occurs unusual and use second timing module that normal container is finished follow-up evacuation, thereby improved production efficiency.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the instructions of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the block scheme according to the automatic vacuumizing alarm device of the embodiment of the invention;
Fig. 2 is the process flow diagram of automatic vacuumizing alarm method according to another embodiment of the present invention; And
Fig. 3 is the circuit connection diagram according to the vacuum extractor of further embodiment of this invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.In the specific embodiment part of this instructions, same reference numerals is represented same or similar element.
Fig. 1 is the block scheme according to the automatic vacuumizing alarm device 100 of the embodiment of the invention.
With reference to Fig. 1, automatic vacuumizing alarm device 100 comprises: judge module 102 is used for judging whether the vacuum tightness that vacuumizes in the volume reaches predetermined value during first timing; First timing module 104 is used for beginning first timing zero hour in vacuum, and is that vacuum tightness stops timing when reaching predetermined value or first timing expiration in the judged result of judge module 102; Second timing module 106 when being used for judged result at judge module 102 and being vacuum tightness and reaching predetermined value, begins second timing; And alarm module 108, send first when being used for when first timing expiration of first timing module 104, sending second warning or second timing expiration and report to the police at second timing module 106.
Automatic vacuumizing alarm device 100 by judge module in first timing, judge container whether vacuumize reach predetermined value (note that this predetermined value should greater than the expectation end value), thereby can determine in advance whether container occurs unusually.If first timing expiration finds that vacuum tightness can not reach predetermined value, can determine that then container vacuumizes appearance unusually, thereby when first timing expires, just finish vacuumizing of this container, in time this container is done over again.
And during first timing, find that vacuum tightness can reach predetermined value, can determine that then container vacuumizes normally.Because this moment, container vacuumized normally, and vacuum tightness reached predetermined value, so can infer experiencing vacuumizing of a period of time, just can finish vacuumizing of this container, and the adding of this embodiment second timing module then can realize this technical scheme.
For example, above-mentioned prior art is evacuated down to the container of 20Pa for expectation, is to judge vacuum tightness reaches 20Pa when 3min expires.And automatic vacuumizing alarm device 100 can be made as predetermined value 30Pa, and first timing is made as 2min.If vacuum tightness reaches 30Pa in 2min, then continue to take out 1min, 1min need not to judge whether to reach 20Pa again when finishing; And in 2min, do not reach 30Pa, then container is done over again.Thereby avoided each container of the prior art all to need to be extracted into 3min, and the low efficiency problem that does not have allowance to bring.
Generally speaking, automatic vacuumizing alarm device 100 is judged in advance by judge module whether container vacuumizes and is occurred unusual and use second timing module that normal container is finished follow-up evacuation, thereby improved production efficiency.
Judge module 102 can be the pressure detection module of using always, also can be other judge module.
First timing module 104 and second timing module 106 all can be the time relays.The effect of second time relay is to make to be evacuated volume (mobile equilibrium) when reaching predetermined vacuum values and to continue to vacuumize a period of time again, with the completeness that guarantees to vacuumize.Wherein, second timing time of first timing time of very first time relay and second time relay all can be by manually determining according to experiment statistics.
First warning that alarm module 108 sends can be the warning that prompting stops to vacuumize, and second warning can be the warning that volume is returned in prompting.Wherein, first reports to the police and second warning can be a sound and light alarm, for example is respectively that green light adds buzzing and red light adds buzzing.Report to the police and second prompting of reporting to the police according to first, those skilled in the art can take measures areput, thereby the vacuum of can be accurately and judging the volume of taking out efficiently reach occur in technological requirement or the vacuum such as the sealing of taking out volume underproof unusual, thereby make corresponding processing.
Preferably, this automatic vacuumizing alarm device 100 can also comprise: the display module (not shown) is used to show pressure detection module 102 detected force value.By display module, can real-time monitored be taken out the interior vacuum tightness of volume, thereby be made that whole vacuum can be monitored to quilt.
Fig. 2 is the process flow diagram of automatic vacuumizing alarm method according to another embodiment of the present invention.
As shown in Figure 2, the automatic vacuumizing alarm method comprises step according to another embodiment of the present invention:
S202 begins to vacuumize and begins first timing to volume;
S204 judges during first timing whether the vacuum tightness of volume reaches predetermined value;
S206 if reach predetermined value, then stops first timing, and begins second timing, when second timing expires, sends first and reports to the police;
S208 if do not reach predetermined value, judges then whether first timing expires, if not expiration of first timing then continues to judge whether the vacuum tightness of volume reaches predetermined value; And
S210, if first timing when expiration, still vacuum tightness does not reach predetermined value, then sends second and reports to the police.
According to another embodiment of the present invention the automatic vacuumizing alarm method by in first timing, judge container whether vacuumize reach predetermined value (note that this predetermined value should greater than the expectation end value), thereby can determine in advance whether container occurs unusually.If first timing expiration finds that vacuum tightness can not reach predetermined value, can determine that then container vacuumizes appearance unusually, thereby when first timing expires, just finish vacuumizing of this container, in time this container is done over again.
And during first timing, find that vacuum tightness can reach predetermined value, can determine that then container vacuumizes normally.Because this moment, container vacuumized normally, and vacuum tightness reached predetermined value, so can infer experiencing vacuumizing of a period of time, just can finish vacuumizing of this container, and the adding of second timing among this embodiment then can realize this technical scheme.
For example, above-mentioned prior art is evacuated down to the container of 20Pa for expectation, is to judge vacuum tightness reaches 20Pa when 3min expires.And predetermined value can be made as 30Pa in the present embodiment, first timing is made as 2min.If vacuum tightness reaches 30Pa in 2min, then continue to take out 1min, 1min need not to judge whether to reach 20Pa again when finishing; And in 2min, do not reach 30Pa, then container is done over again.Thereby avoided in the prior art each container all being needed to be extracted into 3min, and the low efficiency problem that does not have allowance to bring.
Generally speaking, occur unusual and use second timing that normal container is finished the use of the step of follow-up evacuation, improved production efficiency by judging in advance whether container vacuumizes.
Owing to judge that by pressure detection vacuum tightness is common method, so step S202 and step S204 also can be: by utilizing the pressure detection module to detect to vacuumize the force value in the volume; Detected force value and scheduled pressure value are compared; If force value is equal to or less than scheduled pressure value, then vacuum tightness reaches predetermined value; And if force value is greater than scheduled pressure value, then vacuum tightness does not reach predetermined value.
The reason that need continue to vacuumize during second timing is to make to be evacuated volume and to continue afterwards to vacuumize a period of time reaching predetermined vacuum values (mobile equilibrium) again, to prevent during this mobile equilibrium, the undulatory property of volume internal gas pressure or sealing leakage constantly makes vacuum tightness go up to predetermined value is with the appearance of the situation of avoiding not satisfying technological requirement.
Preferably, first reports to the police is the warning that prompting stops to vacuumize, and second warning is that prompting vacuumizes unusual warning.First reports to the police and second warning can be a sound and light alarm, for example is respectively that green light adds buzzing and red light adds buzzing.Report to the police and second prompting of reporting to the police according to first, those skilled in the art can take measures areput, thereby the vacuum of can be accurately and judging the volume of taking out efficiently reaches technological requirement, thereby or in the process that vacuumizes, occur, thereby make those skilled in the art can make respective handling fast such as defective need do over again unusual of the sealing of taking out volume.
First timing module and second timing module all can be the time relays.
Fig. 3 is the circuit connection diagram according to the vacuum extractor of further embodiment of this invention.
As shown in Figure 3, draw independently power supply of two parallel connections, respectively as automatic warning loop 300 with as the power supply of the vacuum meter 302 of pressure detection module from the general supply line.Therefore, vacuum meter 302 can work alone and influence that whether loop 300 that is not subjected to report to the police is automatically opened, but since vacuum meter 302 be connected in series in the automatic warning loop, so the loop of reporting to the police automatically must could operate as normal under the prerequisite that vacuum meter 302 is opened.Air switch 304 is normally closed, if the effect of safeguard protection is played in emergency condition meeting automatic cutouts such as appearance electric leakage.Emergency stop switch 320 is normally closed, if when fortuitous event occurring, can manually disconnect, with the effect of the safeguard protection of getting up.
Automatically warning loop 300 energising back relay indicating lights 306 are bright, and red light 308 and green light 310 go out, very first time relay 312 beginnings (T1) clocking internal during first timing, and second time relay 314 is not-time.
In vacuum, with there will be two kinds of situations: situation A, vacuum meter 302 actions when vacuumizing the vacuum tightness value P0 that reaches setting are so that normal-closed end 316 disconnections, Chang Kaiduan 318 connects, thereby make very first time relay 312 stop timing, (T2) timing in second time relay 314 begins during second timing, second time relay, 314 actions of second timing expiration back make green light 310 bright to send first warning, the vacuum tightness of reminding the staff to be taken out volume has reached requirement, can stop it being vacuumized; And situation B, when after the setting-up time T1 of very first time relay 312 expiration, vacuumize when still failing to make vacuum tightness to reach the vacuum values P0 of setting, 312 actions of very first time relay make red light bright to send second warning, the vacuum tightness of reminding the staff to be taken out volume can't reach requirement, may there be big leakage, should does over again being taken out volume.
Therefore, the above embodiment of the present invention has realized whether the vacuum tightness that automatic judgement is evacuated in the volume reaches requirement, and sends corresponding warning at judged result, thus the beneficial effect of enhancing productivity.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automatic vacuumizing alarm device (100) is characterized in that, comprising:
Judge module (102) is used for judging whether the described vacuum tightness that vacuumizes in the volume reaches predetermined value during first timing;
First timing module (104) is used for beginning described first timing zero hour in described vacuum, and is that described vacuum tightness stops timing when reaching described predetermined value or described first timing expiration in the judged result of described judge module (102);
Second timing module (106) when being used for judged result at described judge module (102) and being described vacuum tightness and reaching described predetermined value, begins second timing; And
Alarm module (108) is used for sending second and reports to the police or send first and report to the police when described second timing expiration of described second timing module (106) when described first timing expiration of described first timing module (104).
2. automatic vacuumizing alarm device according to claim 1 is characterized in that, described judge module (102) is the pressure detection module.
3. automatic vacuumizing alarm device according to claim 1 is characterized in that, described first reports to the police is the warning that prompting stops to vacuumize, and described second warning is that prompting vacuumizes unusual warning.
4. automatic vacuumizing alarm device according to claim 1 is characterized in that, described first timing module (104) and described second timing module (106) all are time relays.
5. automatic vacuumizing alarm device according to claim 2 is characterized in that, also comprises:
Display module is used to show the detected force value of described pressure detection module.
6. an automatic vacuumizing alarm method is characterized in that, comprising:
Volume is begun to vacuumize and begins first timing, during judge whether the vacuum tightness of described volume reaches predetermined value;
If reach described predetermined value, then stop described first timing, and begin second timing, when described second timing expires, send first and report to the police; And
If described first timing does not reach described predetermined value when expiring yet, then send second and report to the police.
7. automatic vacuumizing alarm method according to claim 6 is characterized in that, whether the vacuum tightness of judging described volume reaches predetermined value comprises:
By utilizing the pressure detection module to detect the described force value that vacuumizes in the volume;
Detected described force value and scheduled pressure value are compared;
If described force value is equal to or less than described scheduled pressure value, then described vacuum tightness reaches described predetermined value; And
If described force value is greater than described scheduled pressure value, then described vacuum tightness does not reach described predetermined value.
8. automatic vacuumizing alarm method according to claim 6 is characterized in that, described first reports to the police is the warning that prompting stops to vacuumize, and described second warning is that prompting vacuumizes unusual warning.
9. automatic vacuumizing alarm method according to claim 6 is characterized in that, described first timing module and described second timing module all are time relays.
10. according to each described automatic vacuumizing alarm method of claim 6 to 9, it is characterized in that, also comprise: during described first timing and described second timing, vacuumize; When obtaining described first warning or described second warning, finish to vacuumize.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100001677A CN101776504B (en) | 2009-01-13 | 2009-01-13 | Automatic vacuumizing alarm device and method |
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| CN2009100001677A CN101776504B (en) | 2009-01-13 | 2009-01-13 | Automatic vacuumizing alarm device and method |
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| CN101776504A true CN101776504A (en) | 2010-07-14 |
| CN101776504B CN101776504B (en) | 2012-03-28 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187231A (en) * | 2011-12-30 | 2013-07-03 | 北京中科信电子装备有限公司 | Method utilizing ion implanter to automatically establish beams and high vacuum of target chamber |
| CN104568301B (en) * | 2014-12-24 | 2017-04-12 | 格力电器（合肥）有限公司 | Method and device for detecting equipment vacuum degree |
| CN106644307A (en) * | 2016-12-19 | 2017-05-10 | 广州市真量纯科技有限公司 | Automatic workpiece vacuum degree detection system |
| CN106768610A (en) * | 2016-12-19 | 2017-05-31 | 广州市真量纯科技有限公司 | A kind of workpiece vacuum automatic testing method |
| CN107421180A (en) * | 2017-07-27 | 2017-12-01 | 奥克斯空调股份有限公司 | A kind of management-control method of the vacuum of production line balance air-conditioning |
| CN108267280A (en) * | 2016-12-30 | 2018-07-10 | 致茂电子(苏州)有限公司 | Air-tightness detection method and air-tightness detection device |
| CN114370737A (en) * | 2020-10-15 | 2022-04-19 | 海信（山东）冰箱有限公司 | Refrigerator vacuumizing control method and refrigerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5490414A (en) * | 1992-08-21 | 1996-02-13 | Mercedes-Benz Ag. | Method for detecting leaks in a motor vehicle tank ventilation system |
| CN1865885A (en) * | 2006-05-23 | 2006-11-22 | 上海港复兴船务公司 | Vacuum type airtight detector and its application method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187231A (en) * | 2011-12-30 | 2013-07-03 | 北京中科信电子装备有限公司 | Method utilizing ion implanter to automatically establish beams and high vacuum of target chamber |
| CN104568301B (en) * | 2014-12-24 | 2017-04-12 | 格力电器（合肥）有限公司 | Method and device for detecting equipment vacuum degree |
| CN106644307A (en) * | 2016-12-19 | 2017-05-10 | 广州市真量纯科技有限公司 | Automatic workpiece vacuum degree detection system |
| CN106768610A (en) * | 2016-12-19 | 2017-05-31 | 广州市真量纯科技有限公司 | A kind of workpiece vacuum automatic testing method |
| CN106644307B (en) * | 2016-12-19 | 2019-01-29 | 广州市真量纯科技有限公司 | A kind of workpiece vacuum degree automatic checkout system |
| CN106768610B (en) * | 2016-12-19 | 2019-02-22 | 广州市真量纯科技有限公司 | A kind of workpiece vacuum degree automatic testing method |
| CN108267280A (en) * | 2016-12-30 | 2018-07-10 | 致茂电子(苏州)有限公司 | Air-tightness detection method and air-tightness detection device |
| CN107421180A (en) * | 2017-07-27 | 2017-12-01 | 奥克斯空调股份有限公司 | A kind of management-control method of the vacuum of production line balance air-conditioning |
| CN107421180B (en) * | 2017-07-27 | 2019-10-25 | 奥克斯空调股份有限公司 | A kind of management-control method of the vacuum degree of flow line production air-conditioning |
| CN114370737A (en) * | 2020-10-15 | 2022-04-19 | 海信（山东）冰箱有限公司 | Refrigerator vacuumizing control method and refrigerator |
| CN114370737B (en) * | 2020-10-15 | 2024-08-20 | 海信冰箱有限公司 | Refrigerator vacuumizing control method and refrigerator |
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| CN101776504B (en) | 2012-03-28 |
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