CN112137543A - Dish washing machine with oxygen sensor and control method thereof - Google Patents
Dish washing machine with oxygen sensor and control method thereof Download PDFInfo
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- CN112137543A CN112137543A CN202010833731.XA CN202010833731A CN112137543A CN 112137543 A CN112137543 A CN 112137543A CN 202010833731 A CN202010833731 A CN 202010833731A CN 112137543 A CN112137543 A CN 112137543A
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- dishwasher
- oxygen sensor
- inner cavity
- drying condition
- washing machine
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 164
- 239000001301 oxygen Substances 0.000 title claims abstract description 164
- 238000004851 dishwashing Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000001035 drying Methods 0.000 claims abstract description 101
- 238000010438 heat treatment Methods 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 241000894006 Bacteria Species 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
- A47L15/0034—Drying phases, including dripping-off phases
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/48—Drying arrangements
- A47L15/486—Blower arrangements
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- Washing And Drying Of Tableware (AREA)
Abstract
The invention discloses a dish washing machine with an oxygen sensor and a control method thereof, and the dish washing machine comprises an inner cavity of the dish washing machine, the oxygen sensor and a controller, wherein an exhaust channel is arranged on the inner cavity of the dish washing machine, the oxygen sensor is arranged in the inner cavity of the dish washing machine or arranged in the exhaust channel, the controller is electrically connected with the oxygen sensor, and the controller is used for judging whether the inner cavity of the dish washing machine or the exhaust channel reaches a drying condition according to data fed back by the oxygen sensor, so that the drying degree of the inner cavity of the dish washing machine can be effectively detected.
Description
Technical Field
The invention relates to the technical field of dish washing machines, in particular to a dish washing machine with an oxygen sensor and a control method thereof.
Background
With the increasing standard of living, the dish washer is gradually popularized in the family with convenient operation mode and excellent washing performance. Dish washer is provided with the detection component among the prior art and is used for detecting whether the dish washer inner chamber reaches the drying condition, for example adopt humidity transducer to detect whether the dish washer inner chamber reaches the drying condition, but its testing result of current detection component is unsatisfactory, lead to the dish washer inner chamber not reach the drying condition and just stop drying, the dish washer inner chamber is dried and is not thoroughly leaded to the dish washer inner chamber to produce bacterium and peculiar smell easily, influences user's use and experiences.
Disclosure of Invention
The present invention has been made to solve at least one of the problems occurring in the related art to some extent, and therefore, the present invention provides a dishwasher having an oxygen sensor, which can effectively detect a drying degree of an inner chamber of the dishwasher.
The above purpose is realized by the following technical scheme:
the utility model provides a dish washer with oxygen sensor, includes dish washer inner chamber, oxygen sensor and controller the dish washer inner chamber is provided with the spray arm, just is in be provided with exhaust passage in the dish washer inner chamber, oxygen sensor set up in dish washer inner chamber the inside or set up in exhaust passage the inside, the controller with oxygen sensor electric connection, the controller is used for the basis whether dish washer inner chamber or exhaust passage reach the stoving condition is judged to the data that oxygen sensor fed back.
In some embodiments, the oxygen sensor is disposed at a top of the dishwasher chamber, and a protective cover is disposed outside the oxygen sensor and at the top of the dishwasher chamber.
In some embodiments, the protective cover is a mesh-like structure.
In some embodiments, the protective cover mesh size is less than 1000 mesh.
In some embodiments, the protective cover is made of stainless steel wire mesh.
In some embodiments, the oxygen sensor is a limiting current oxygen sensor.
In addition, the invention provides a control method of a dish washing machine with an oxygen sensor, which can effectively detect the drying degree of the inner cavity of the dish washing machine and ensure that the inner cavity of the dish washing machine is thoroughly dried.
The above purpose is realized by the following technical scheme:
a control method of a dishwasher having an oxygen sensor, applied to the dishwasher having an oxygen sensor as described above, the control method comprising the steps of:
s1, starting the drying function of the dish washer;
s2, acquiring the current oxygen concentration of the inner cavity or the exhaust channel of the dish washer, and acquiring the set fan rotating speed and the set operation time length corresponding to the requirement of the drying condition according to the current oxygen concentration;
s3, controlling the fan to work according to the set fan speed and the set operation time;
and S4, acquiring the measured oxygen concentration of the inner cavity or the exhaust passage of the dishwasher and controlling the dishwasher to work.
In some embodiments, step S4 includes:
comparing the actually measured oxygen concentration with an oxygen concentration preset value corresponding to the requirement of reaching the drying condition to judge whether the inner cavity or the exhaust channel of the dish washing machine reaches the drying condition;
s41, if the inner cavity or the exhaust channel of the dish washer reaches the drying condition, controlling the dish washer to stop working;
s42, if the inner cavity or the exhaust channel of the dish washer does not reach the drying condition, controlling the dish washer to execute according to the action that does not reach the drying condition.
In some embodiments, the step of determining whether the inner cavity or the exhaust passage of the dishwasher reaches the drying condition is specifically:
if the actually measured oxygen concentration is greater than or equal to the preset oxygen concentration value, judging that the inner cavity or the exhaust channel of the dish washing machine reaches a drying condition;
if the actually measured oxygen concentration is smaller than the preset oxygen concentration value, the inner cavity of the dish washing machine or the exhaust channel is judged not to reach the drying condition.
In some embodiments, the step S42 of controlling the dishwasher to execute the action that does not reach the drying condition specifically includes:
judging whether the set fan rotating speed reaches the maximum fan rotating speed or not;
if not, the step S43 is carried out, the current fan rotating speed is increased to the maximum fan rotating speed, and the fan rotates at the maximum fan rotating speed until the inner cavity or the exhaust channel reaches the drying condition;
if yes, the process proceeds to step S44, where the power of the heating pipe is increased until the inner cavity or the exhaust passage reaches the drying condition.
In some embodiments, step S43 includes:
s431, increasing the current fan rotating speed to the maximum fan rotating speed for operation;
s432, acquiring a preset operation time corresponding to the condition that the operation reaches the drying condition requirement at the maximum fan rotating speed according to the actually measured oxygen concentration;
s433, controlling the fan to work according to the maximum fan rotating speed and the preset operation time;
s434, judging whether the inner cavity or the exhaust channel of the dish washer reaches a drying condition;
s435, if the inner cavity or the exhaust channel of the dish washing machine reaches the drying condition, controlling the dish washing machine to stop working; if the dishwasher cavity or the exhaust passage does not reach the drying condition, the process proceeds to step S44.
In some embodiments, step S44 includes:
s436, judging whether the inner cavity or the exhaust channel of the dish-washing machine reaches a drying condition, if so, controlling the dish-washing machine to stop working, and if not, entering the step S437;
s437, increasing the current heating pipe power to the maximum heating pipe power, and controlling the heating pipe to work according to the maximum heating pipe power and the preset operation time length;
and S438, judging whether the inner cavity or the exhaust channel of the dish washing machine reaches a drying condition, if so, controlling the dish washing machine to stop working, and if not, controlling the dish washing machine to stop working and prompting a fault.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the invention provides a dishwasher with an oxygen sensor, which can effectively detect the drying degree of an inner cavity of the dishwasher and has the advantages of long service life, simple structure, stability and reliability.
2. The invention provides a control method of a dish washing machine with an oxygen sensor, which can effectively detect the drying degree of an inner cavity of the dish washing machine and ensure that the inner cavity of the dish washing machine is thoroughly dried.
Drawings
FIG. 1 is a schematic structural view of a dishwasher in an embodiment;
fig. 2 is a flowchart illustrating a control method according to an embodiment.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
The first embodiment is as follows: as shown in fig. 1 and fig. 2, this embodiment provides a dish washer with oxygen sensor, including dish washer inner chamber 1, oxygen sensor 2, controller and stoving module, be provided with the spray arm in dish washer inner chamber 1, and be provided with exhaust passage 3 on dish washer inner chamber 1, oxygen sensor 2 sets up in dish washer inner chamber 1 the inside or sets up in exhaust passage 3 the inside, controller and oxygen sensor 2, stoving module electric connection, the controller is used for judging whether dish washer inner chamber 1 or exhaust passage 3 reach the stoving condition according to the data of oxygen sensor 2 feedback, the stoving module includes fan and heating pipe, the fan is used for blowing the produced heat of heating pipe during operation to dish washer inner chamber 1 in order to dry dish washer inner chamber 1.
The embodiment provides a dishwasher with an oxygen sensor, which can effectively detect the drying degree of an inner cavity of the dishwasher and has the advantages of long service life, simple structure, stability and reliability.
Further, oxygen sensor 2 sets up in 1 tops of dish washer inner chamber, outside oxygen sensor 2, 1 tops of dish washer inner chamber are provided with protection casing 4, its simple structure, reasonable in design, it is ingenious, can realize that 1 oxygen concentration in dish washer inner chamber detects and be used for preventing that dish washer from wasing the tableware, the high-pressure water column of spray arm carries out direct injection to the detecting element in the oxygen sensor 2, avoid detecting element to damage, and then reach increase of service life, the purpose of stability and reliability is improved.
Preferably, the protection casing 4 adopts mesh structure, and its mesh is less than 1000 meshes, and its simple structure, reasonable in design, ingenious can realize that 1 oxygen concentration in dish washer inner chamber detects and prevent that high-pressure water column from carrying out direct injection to the detecting element in the oxygen sensor 2 and causing the detecting element to damage.
In this embodiment, the protection cover 4 is made of a stainless steel wire mesh, and has a stable and reliable structure, low cost and long service life.
Furthermore, the oxygen sensor 2 adopts a limiting current type oxygen sensor, and has stable and reliable oxygen concentration detection performance, low cost and long service life.
In this embodiment, a single or multiple oxygen sensors 2 may be disposed in the inner chamber 1 or the exhaust channel 3 of the dishwasher to detect the multi-point oxygen concentration in the inner chamber 1 or the exhaust channel 3 of the dishwasher, and calculate the average oxygen concentration value according to the multi-point oxygen concentration to improve the accuracy of detecting the oxygen concentration, and further determine whether the inner chamber 1 or the exhaust channel 3 of the dishwasher reaches the drying condition, specifically, if the detected oxygen concentration is greater than or equal to the preset oxygen concentration value, it is determined that the inner chamber 1 or the exhaust channel 3 of the dishwasher reaches the drying condition; if the oxygen concentration that detects the gained is less than the oxygen concentration default, then judge that dish washer inner chamber 1 or exhaust passage 3 do not reach the drying condition, need continue to dry to this guarantees that dish washer inner chamber 1 thoroughly dries and avoids the condition that dish washer inner chamber 1 produced bacterium and peculiar smell to take place, improves user's use and experiences.
In the embodiment, the dishwasher performs a pre-drying function by acquiring a set value of the rotating speed of the fan corresponding to the oxygen concentration before drying of the dishwasher and the running time;
detect the oxygen concentration and the contrast of complete stoving default in dish washer inner chamber 1 or exhaust passage 3 after through the predrying function, the fan and/or the heating pipe of real time control stoving module work alone, in order to reach complete stoving and trouble suggestion, wherein complete stoving default is accomplished with the tableware and is dried the effect and oxygen sensor precision deviation and is relevant, preferred complete stoving default is more than or equal to 20%, with this guarantee that dish washer inner chamber 1 thoroughly dries and avoid the condition emergence that dish washer inner chamber 1 produced bacterium and peculiar smell, improve user's use and experience.
Example two: as shown in fig. 1 and 2, the present embodiment provides a control method of a dishwasher having an oxygen sensor, applied to the dishwasher having an oxygen sensor according to the first embodiment, the control method including the steps of:
s1, starting the drying function of the dish washer;
s2, obtaining the current oxygen concentration of the inner cavity 1 or the exhaust channel 3 of the dish washer, obtaining the set fan rotating speed and the set operation time length corresponding to the requirement of reaching the drying condition according to the current oxygen concentration, in this embodiment, in order to improve the accuracy of detecting the oxygen concentration, a single or a plurality of oxygen sensors 2 can be arranged in the inner cavity 1 or the exhaust channel 3 of the dish washer, detecting the multi-point oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dish washer, and calculating the average oxygen concentration value according to the multi-point oxygen concentration to improve the accuracy of detecting the oxygen concentration;
obtaining the set fan rotating speed and the set operation time corresponding to the requirement of reaching the drying condition according to the current oxygen concentration, wherein the relation table of the oxygen concentration, the fan rotating speed and the operation time can be referred to, and the relation table is as follows:
for example, if the current oxygen concentration of the inner cavity or the exhaust passage of the dishwasher is 10%, the set fan rotating speed corresponding to the requirement of the drying condition is 1500r/min, and the set operation time is 10 min;
if the current oxygen concentration of the inner cavity or the exhaust channel of the dish-washing machine is 15%, the set fan rotating speed corresponding to the requirement of the drying condition is 1000r/min, and the set operation time is 5 min;
and so on.
S3, controlling the fan to work according to the set fan speed and the set operation time;
and S4, acquiring the measured oxygen concentration of the inner cavity 1 or the exhaust channel 3 of the dishwasher and controlling the dishwasher to work. Specifically, the actually measured oxygen concentration is compared with an oxygen concentration preset value corresponding to the requirement of reaching the drying condition to judge whether the inner cavity or the exhaust channel of the dishwasher reaches the drying condition, in the embodiment, the oxygen concentration preset value corresponding to the requirement of reaching the drying condition of the inner cavity 1 or the exhaust channel 3 of the dishwasher is more than or equal to 20%, and if the actually measured oxygen concentration is more than or equal to 20% of the oxygen concentration preset value, the inner cavity 1 or the exhaust channel 3 of the dishwasher is judged to reach the drying condition; if the actually measured oxygen concentration is less than 20% of the preset oxygen concentration value, the condition that the inner cavity 1 of the dish-washing machine or the exhaust channel 3 does not reach the drying condition is judged, and the drying is required to be continued.
The control method of the embodiment can effectively detect the drying degree of the inner cavity 1 of the dish-washing machine and ensure that the inner cavity 1 of the dish-washing machine is thoroughly dried.
Example two: as shown in fig. 1 and 2, the present embodiment provides a control method of a dishwasher having an oxygen sensor, which is different from the control method of the dishwasher having an oxygen sensor provided in the first embodiment in that step S4 includes:
comparing the actually measured oxygen concentration with an oxygen concentration preset value corresponding to the requirement of reaching the drying condition to judge whether the inner cavity or the exhaust channel of the dish washing machine reaches the drying condition;
s41, if the actually measured oxygen concentration is greater than or equal to the preset oxygen concentration value, judging that the inner cavity 1 or the exhaust channel 3 of the dish washing machine reaches the drying condition, and controlling the dish washing machine to stop working, specifically, if the actually measured oxygen concentration is greater than or equal to 20% of the preset oxygen concentration value, determining that the oxygen concentration of the environment where the inner cavity 1 or the exhaust channel 3 of the dish washing machine is located meets the drying requirement of the dish washing machine, and controlling the dish washing machine to stop working and prompting that the drying is finished, wherein the preset oxygen concentration value is not;
s42, if the measured oxygen concentration is less than the oxygen concentration preset value, judging that the inner cavity 1 or the exhaust channel 3 of the dish-washing machine does not reach the drying condition, and controlling the dish-washing machine to execute according to the action that the drying condition is not reached.
It is specific, detect the oxygen concentration in dish washer inner chamber 1 or exhaust passage 3 through oxygen sensor 2, according to actual measurement oxygen concentration and the oxygen concentration default of drying completely more than or equal to 20% contrast, whether satisfy the inside complete drying of dish washer with the oxygen concentration of judging the environment whether dish washer inner chamber 1 or exhaust passage 3 are located, its reasonable in design, it is ingenious, take place with the condition that this accurate 1 thorough drying of judgement dish washer inner chamber avoids dish washer inner chamber 1 to produce bacterium and peculiar smell, improve user's use and experience.
Example three: as shown in fig. 1 and 2, the present embodiment provides a control method of a dishwasher having an oxygen sensor, which is different from the control method of the dishwasher having an oxygen sensor provided in the second embodiment in that the step S42 of controlling the dishwasher to perform actions that do not reach the drying condition specifically includes:
judging whether the set fan rotating speed reaches the maximum fan rotating speed, wherein in the embodiment, the maximum fan rotating speed of the drying module is 2000 r/min;
if not, the step S43 is carried out, the current fan rotating speed is increased to the maximum fan rotating speed, and the fan rotates at the maximum fan rotating speed until the inner cavity or the exhaust channel reaches the drying condition;
if yes, the process proceeds to step S44, where the power of the heating pipe is increased until the inner cavity or the exhaust passage reaches the drying condition.
Above-mentioned step reasonable in design, if dish washer inner chamber 1 or exhaust passage 3 do not reach the drying condition, then need continue to dry to dish washer inner chamber 1 to avoid dish washer inner chamber 1 to take place owing to the condition that the stoving does not thoroughly lead to producing bacterium and peculiar smell, do benefit to improvement user's use and experience.
Example four: as shown in fig. 1 and 2, the present embodiment provides a control method of a dishwasher having an oxygen sensor, which is different from the control method of the dishwasher having an oxygen sensor provided in the third embodiment in that the step S43 includes:
s431, increasing the current fan rotating speed to the maximum fan rotating speed for operation, so that the speed of the inner cavity 1 or the exhaust channel 3 of the drying dish-washing machine can be increased;
s432, acquiring a preset operation time corresponding to the condition that the maximum fan rotating speed operation reaches the drying condition requirement according to the actually measured oxygen concentration, and referring to the mode of acquiring the set operation time in the second embodiment;
s433, controlling the fan to work according to the maximum fan rotating speed and the preset operation time;
s434, judging whether the inner cavity or the exhaust channel of the dishwasher reaches a drying condition, specifically, acquiring the oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher through the oxygen sensor 2, and comparing the acquired oxygen concentration with a preset value of the completely-dried oxygen concentration to be more than or equal to 20% so as to judge whether the oxygen concentration of the environment where the inner cavity 1 or the exhaust channel 3 of the dishwasher is located meets the requirement of completely drying the inside of the dishwasher;
s435, if the inner cavity or the exhaust channel of the dish washing machine meets the drying condition, controlling the dish washing machine to stop working, specifically, if the actually measured oxygen concentration is greater than or equal to 20% of the preset oxygen concentration value, determining that the oxygen concentration of the environment where the inner cavity 1 or the exhaust channel 3 of the dish washing machine is located meets the drying requirement of the dish washing machine, controlling the dish washing machine to stop working and prompting that drying is completed, wherein the preset oxygen concentration value is not greater than 21% at most;
if the dishwasher cavity or the exhaust passage does not reach the drying condition, the process proceeds to step S44.
Above-mentioned step reasonable in design, if dish washer inner chamber 1 or exhaust passage 3 do not reach the drying condition, then need continue to dry to dish washer inner chamber 1 to avoid dish washer inner chamber 1 to take place owing to the condition that the stoving does not thoroughly lead to producing bacterium and peculiar smell, do benefit to improvement user's use and experience.
Example five: as shown in fig. 1 and 2, the present embodiment provides a control method of a dishwasher having an oxygen sensor, which is different from the control method of the dishwasher having an oxygen sensor provided in the fourth embodiment in that the step S44 includes:
s436, judging whether the inner cavity or the exhaust channel of the dish-washing machine reaches a drying condition, if so, controlling the dish-washing machine to stop working, and if not, entering the step S437;
s437, increasing the current heating pipe power to the maximum heating pipe power, controlling the heating pipe to work according to the maximum heating pipe power and the preset operation time, specifically, obtaining the oxygen concentration of the inner chamber 1 or the exhaust passage 3 of the dishwasher through the oxygen sensor 2, obtaining the preset operation time corresponding to the requirement of the drying condition according to the obtained oxygen concentration, and obtaining the preset operation time according to the way of obtaining the set operation time in the second embodiment;
s438, judging whether the inner cavity or the exhaust channel of the dish-washing machine reaches the drying condition, if so, controlling the dish-washing machine to stop working, otherwise, controlling the dish-washing machine to stop working and prompting the fault
Above-mentioned step reasonable in design, if dish washer inner chamber 1 or exhaust passage 3 do not reach the drying condition, then need continue to dry to dish washer inner chamber 1 to avoid dish washer inner chamber 1 to take place owing to the condition that the stoving does not thoroughly lead to producing bacterium and peculiar smell, do benefit to improvement user's use and experience.
In this embodiment, step S42 and the following steps are specifically:
if the actually measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is smaller than the preset oxygen concentration value, detecting whether the rotating speed of a fan of a drying module of the dishwasher reaches the maximum rotating speed, if the rotating speed of the fan of the drying module of the dishwasher does not reach the maximum rotating speed, increasing the rotating speed of the fan of the drying module of the dishwasher to the maximum rotating speed and operating for a preset operating time corresponding to the current humidity, continuously detecting and judging whether the actually measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is larger than or equal to the preset oxygen concentration value, if the actually measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is detected to be larger than or equal to the preset oxygen concentration value, determining that the oxygen concentration in the environment where the inner cavity 1 or the exhaust channel 3 of the dishwasher; if the rotating speed of a fan of the dishwasher module reaches the maximum rotating speed or the rotating speed of the fan of the dishwasher drying module is increased to the maximum rotating speed and the preset operation time corresponding to the current operation humidity, the actually-measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is still smaller than the preset oxygen concentration value, after the power of a heating pipe of the dishwasher drying module is increased, whether the actually-measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is larger than or equal to the preset oxygen concentration value is continuously detected, after the heating pipe of the dishwasher drying module is controlled to be opened at the maximum power and operates for the same preset operation time, whether the actually-measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is continuously detected, if the actually-measured oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dishwasher is detected to be larger than or equal to the, controlling the dishwasher to stop working and prompting the completion of drying, wherein the maximum oxygen concentration preset value is not more than 21%; if the detected oxygen concentration in the inner cavity 1 or the exhaust channel 3 of the dish-washing machine is still less than the preset oxygen concentration value, the dish-washing machine is controlled to stop working and a fault is prompted.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (12)
1. The utility model provides a dish washer with oxygen sensor, its characterized in that, includes dish washer inner chamber (1), oxygen sensor (2) and controller be provided with the spray arm in dish washer inner chamber (1), just be provided with exhaust passage (3) on dish washer inner chamber (1), oxygen sensor (2) set up in dish washer inner chamber (1) the inside or set up in exhaust passage (3) the inside, the controller with oxygen sensor (2) electric connection, the controller is used for the basis whether dish washer inner chamber (1) or exhaust passage (3) reach the stoving condition is judged to the data that oxygen sensor (2) fed back.
2. The dishwasher with oxygen sensor according to claim 1, characterized in that the oxygen sensor (2) is arranged on top of the dishwasher chamber (1), and a protective hood (4) is arranged outside the oxygen sensor (2).
3. Dishwasher with oxygen sensor according to claim 2, characterized in that the protective hood (4) is of mesh-like construction.
4. A dishwasher with an oxygen sensor according to claim 3, characterized in that the protective hood (4) has a mesh count of less than 1000 mesh.
5. The dishwasher with oxygen sensor according to claim 2, 3 or 4, characterized in that the protective hood (4) is made of stainless steel wire mesh.
6. The dishwasher having an oxygen sensor according to any one of claims 1 to 4, characterized in that the oxygen sensor (2) employs a limiting current type oxygen sensor.
7. A control method of a dishwasher having an oxygen sensor, applied to the dishwasher having an oxygen sensor as set forth in any one of claims 1 to 6, the control method comprising the steps of:
s1, starting the drying function of the dish washer;
s2, acquiring the current oxygen concentration of the inner cavity or the exhaust channel of the dish washer, and acquiring the set fan rotating speed and the set operation time length corresponding to the requirement of the drying condition according to the current oxygen concentration;
s3, controlling the fan to work according to the set fan speed and the set operation time;
and S4, acquiring the measured oxygen concentration of the inner cavity or the exhaust passage of the dishwasher and controlling the dishwasher to work.
8. The control method of a dishwasher having an oxygen sensor according to claim 7, wherein the step S4 includes:
comparing the actually measured oxygen concentration with an oxygen concentration preset value corresponding to the requirement of reaching the drying condition to judge whether the inner cavity or the exhaust channel of the dish washing machine reaches the drying condition;
s41, if the inner cavity or the exhaust channel of the dish washer reaches the drying condition, controlling the dish washer to stop working;
s42, if the inner cavity or the exhaust channel of the dish washer does not reach the drying condition, controlling the dish washer to execute according to the action that does not reach the drying condition.
9. The method for controlling a dishwasher having an oxygen sensor as claimed in claim 8, wherein the step of determining whether the inner chamber or the exhaust passage of the dishwasher reaches the drying condition is specifically:
if the actually measured oxygen concentration is greater than or equal to the preset oxygen concentration value, judging that the inner cavity or the exhaust channel of the dish washing machine reaches a drying condition;
if the actually measured oxygen concentration is smaller than the preset oxygen concentration value, the inner cavity of the dish washing machine or the exhaust channel is judged not to reach the drying condition.
10. The method as claimed in claim 8, wherein the step S42 of controlling the dishwasher to execute the action not meeting the drying condition includes:
judging whether the set fan rotating speed reaches the maximum fan rotating speed or not;
if not, the step S43 is carried out, the current fan rotating speed is increased to the maximum fan rotating speed, and the fan rotates at the maximum fan rotating speed until the inner cavity or the exhaust channel reaches the drying condition;
if yes, the process proceeds to step S44, where the power of the heating pipe is increased until the inner cavity or the exhaust passage reaches the drying condition.
11. The control method of a dishwasher having an oxygen sensor as set forth in claim 10, wherein the step S43 includes:
s431, increasing the current fan rotating speed to the maximum fan rotating speed for operation;
s432, acquiring a preset operation time corresponding to the condition that the operation reaches the drying condition requirement at the maximum fan rotating speed according to the actually measured oxygen concentration;
s433, controlling the fan to work according to the maximum fan rotating speed and the preset operation time;
s434, judging whether the inner cavity or the exhaust channel of the dish washer reaches a drying condition;
s435, if the inner cavity or the exhaust channel of the dish washing machine reaches the drying condition, controlling the dish washing machine to stop working;
if the dishwasher cavity or the exhaust passage does not reach the drying condition, the process proceeds to step S44.
12. The control method of a dishwasher having an oxygen sensor as set forth in claim 11, wherein the step S44 includes:
s436, judging whether the inner cavity or the exhaust channel of the dish-washing machine reaches a drying condition, if so, controlling the dish-washing machine to stop working, and if not, entering the step S437;
s437, increasing the current heating pipe power to the maximum heating pipe power, and controlling the heating pipe to work according to the maximum heating pipe power and the preset operation time length;
and S438, judging whether the inner cavity or the exhaust channel of the dish washing machine reaches a drying condition, if so, controlling the dish washing machine to stop working, and if not, controlling the dish washing machine to stop working and prompting a fault.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812896A (en) * | 2021-06-02 | 2021-12-21 | 华帝股份有限公司 | Control method of dish washing machine |
| CN114601406A (en) * | 2022-04-25 | 2022-06-10 | 珠海格力电器股份有限公司 | Drying and storing method and device for dish washing machine and dish washing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113812896A (en) * | 2021-06-02 | 2021-12-21 | 华帝股份有限公司 | Control method of dish washing machine |
| CN113812896B (en) * | 2021-06-02 | 2023-06-09 | 华帝股份有限公司 | Control method of dish washer |
| CN114601406A (en) * | 2022-04-25 | 2022-06-10 | 珠海格力电器股份有限公司 | Drying and storing method and device for dish washing machine and dish washing machine |
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