CN108132623B - Heating control method and device for dish washing machine - Google Patents
Heating control method and device for dish washing machine Download PDFInfo
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- CN108132623B CN108132623B CN201711330066.7A CN201711330066A CN108132623B CN 108132623 B CN108132623 B CN 108132623B CN 201711330066 A CN201711330066 A CN 201711330066A CN 108132623 B CN108132623 B CN 108132623B
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- heating circuit
- water
- water supply
- heating
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/32—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature with provision for adjustment of the effect of the auxiliary heating device, e.g. a function of time
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2613—Household appliance in general
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2633—Washing, laundry
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2644—Sterilizer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
The embodiment of the invention provides a heating control method and device for a dish washing machine, and belongs to the field of household appliances. The heating control method and the device are used for a heating control method of a dishwasher, the dishwasher comprises a heating circuit, and the heating control method comprises the following steps: acquiring water supply pressure of the dishwasher; and controlling the heating circuit according to the water supply pressure. The heating control method and the device can prevent the heating circuit of the dish-washing machine from being damaged in time, improve the reliability of the dish-washing machine and prevent safety problems from occurring.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a heating control method and device for a dish washing machine.
Background
Conventional dishwashers generally have only one heating element, the main heating element, for heating the water sprayed in a circulating manner during washing. However, with the advent of more and more new functions, secondary heating components have been created in succession. Since the heating member has a great influence on safety, if not properly controlled, not only the function cannot be well performed, but also safety problems such as ignition may be caused.
In addition, in the dishwasher system, the main heating part needs to be operated when water flows (even though the water is circularly sprayed in the inner tub) so as to rapidly and uniformly transfer heat into the washing water, and when the amount of water is insufficient or the water is stationary, the main heating part is easily damaged or even catches fire. However, for some secondary heating functions, it is also desirable that the inner container is not sprayed with water.
In the prior art, the working current of a washing motor is detected, the water inflow is obtained according to the detected working current and the target control rotating speed of the washing motor, and when the water inflow is smaller than the water amount required by heating, a heating pipe in a dish washing machine is controlled to stop working, so that the heating pipe can stop heating under the condition of less water inflow. Or the heating device is controlled by detecting the water quantity, and the heating device is switched on when the water quantity reaches the rated water quantity and is switched off when the water quantity is insufficient. The above-mentioned prior art heating protection methods all have a relatively delayed control of the heating device and cannot achieve protection of the main heating device when the dishwasher is operating in a function other than the main heating.
Disclosure of Invention
The embodiment of the invention aims to provide a heating control method and a heating control device for a dish-washing machine, which can prevent a heating circuit of the dish-washing machine from being damaged in time, improve the reliability of the dish-washing machine and prevent safety problems from occurring.
In order to achieve the above object, an embodiment of the present invention provides a heating control method for a dishwasher, the dishwasher including a heating circuit, the method including: acquiring water supply pressure of the dishwasher; and controlling the heating circuit according to the water supply pressure.
Wherein the heating circuit includes a main heating circuit for heating the washing water, and the controlling of the heating circuit according to the water pressure of the water supply includes: when the water supply pressure reaches a water pressure threshold value, allowing the main heating circuit to be in a working state; and when the water supply pressure is lower than the water pressure threshold value, the main heating circuit is not allowed to be in the working state.
Wherein the dishwasher may further include a sub-heating circuit for providing heat required for an auxiliary function of the dishwasher, the controlling the heating circuit according to the water pressure of the water supply further includes: when the water supply pressure reaches a water pressure threshold value, the auxiliary heating circuit is not allowed to be in a working state; and allowing the secondary heating circuit to be in an operating state when the water supply pressure is lower than the water pressure threshold.
Wherein the auxiliary function may include high temperature steam sterilization and/or hot air drying.
According to another aspect of the present invention, there is also provided a heating control device for a dishwasher, the dishwasher including a heating circuit, the device including: the water pressure detection module is used for acquiring the water supply pressure of the dishwasher; and the control module is used for controlling the heating circuit according to the water supply pressure.
Wherein the heating circuit may include a main heating circuit for heating the washing water, and the control module includes a conversion module for: when the water supply pressure reaches a water pressure threshold value, switching to a state allowing the main heating circuit to be in a working state; and when the water supply pressure is lower than the water pressure threshold value, switching to not allow the main heating circuit to be in the working state.
Wherein the dishwasher may further comprise a secondary heating circuit for providing heat required for the auxiliary function, the conversion module may be further configured to: when the water supply pressure reaches a water pressure threshold value, switching to a state that the auxiliary heating circuit is not allowed to be in a working state; and switching to allow the sub heating circuit to be in an operating state when the water supply pressure is lower than the water pressure threshold value.
Wherein the auxiliary function may include a high-temperature steam sterilizing function and/or a hot air drying function.
Wherein, the water supply pressure is preferably the water pressure of a water supply device water lifting passage.
According to another aspect of the invention, there is also a machine-readable storage medium having instructions stored thereon for causing a machine to perform the heating control method.
Through the technical scheme, the heating circuit is controlled according to the water pressure, so that the main heating circuit can be stopped in time when the inner container of the dish-washing machine is insufficient, the conversion between the main heating circuit and the auxiliary heating circuit can be accurately executed, the interference between the main heating circuit and the auxiliary electric heating circuit is prevented, the safety and the reliability are improved, and the working efficiency of the dish-washing machine can be improved.
Additional features and advantages of embodiments of the present invention will be described in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a flow chart of a heating control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a heating control method according to another embodiment of the present invention;
fig. 3 is a block diagram of a heating control apparatus according to an embodiment of the present invention;
fig. 4 is a block diagram of a heating control apparatus according to another embodiment of the present invention; and
fig. 5 is a block diagram showing the structure of a heating control apparatus according to another embodiment of the present invention.
Description of the reference numerals
10: the water pressure detection module 20: control module
21: conversion module
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart of a heating control method according to an embodiment of the present invention. The heating control method is used for a dishwasher comprising a heating circuit, as shown in fig. 1, the method comprising the steps of:
in step S110, a water supply pressure of the dishwasher is acquired. The water supply pressure is preferably the pressure in the pumping channel of the water supply device, which may be, for example, a water supply pump or a water valve.
In step S120, the heating circuit is controlled according to the water supply pressure. The water quantity which can be supplied to the inner container of the dishwasher at present can be judged according to the water pressure, and the heating circuit is controlled to be switched on or switched off according to the setting purposes of various heating circuits.
Through this embodiment, can rationally control be used for the heating circuit of various purposes in the dish washer to prevent that the heating circuit from overheated and arousing the potential safety hazard, and can improve dish washer's work efficiency.
Fig. 2 is a flowchart of a heating control method according to another embodiment of the present invention. In a preferred embodiment of the present invention, the heating circuit may include a main heating circuit for heating the washing water, and in another preferred embodiment, the heating circuit may further include a sub-heating circuit for providing heat required for an auxiliary function of the dishwasher. The auxiliary functions may preferably include high-temperature steam sterilization, hot air drying, and may further include other functions such as a baking function, etc. As shown in fig. 2, the method may include the steps of:
in step S210, a water supply pressure of the dishwasher is acquired.
In step S220, it is determined whether the water supply pressure reaches a water pressure threshold value.
In step S230, when the water supply pressure reaches a water pressure threshold, the main heating circuit is allowed to be in an operating state. When water supply pressure reaches a water pressure threshold value, it is indicated that enough water can be supplied to the inner container of the dishwasher at the moment, spray water can be normally heated at the moment, safety problems such as damage to parts in a main heating circuit or fire and the like caused by overheating of the main heating circuit can be avoided, and therefore the main heating circuit can be allowed to be in a working state, and if the spray water is required to be heated, other control switches of the main heating circuit can be switched on to enable the heating circuit to be in the working state. Or the heating circuit can be in a working state when the water supply pressure reaches the water pressure threshold value without using other control switches, but the flexible control of the main heating circuit is not facilitated.
In step S240, when the water supply pressure reaches a water pressure threshold, the sub heating circuit is not allowed to be in an operating state. The auxiliary heating circuit is generally used for removing other auxiliary functions for heating the spray water, the auxiliary functions are generally operated under the state of no water in the inner container of the dish-washing machine, for example, when high-temperature steam is used for disinfection, the disinfection effect can be influenced if water is sprayed, and when the dish in the inner container of the dish-washing machine is dried by hot air, water cannot be sprayed out. Therefore, if the water pressure of the water supply reaches the water pressure threshold value, the water in the inner container of the dish washing machine can be sprayed out, the auxiliary heating circuit is not allowed to work, unnecessary waste of electric quantity can be prevented, interference between the main heating function and the auxiliary function can be avoided, and the working efficiency of the dish washing machine is improved.
In step S250, when the water supply pressure is lower than the water pressure threshold, the main heating circuit is not allowed to be in an operating state. When the water supply pressure is lower than the water pressure threshold value, the water shortage in the inner container of the dish-washing machine is indicated, and at the moment, if the main heating circuit is in a working state, the main heating circuit is overheated. When the main heating circuit is not allowed to be in the working state, the main heating circuit can not heat even if other control switches of the main heating circuit are turned on.
In step S260, when the water supply pressure is lower than the water pressure threshold, the sub heating circuit is allowed to be in an operating state. At the moment, the indication shows that no water or only a very small amount of water is sprayed out from the inner container of the dish-washing machine, and other auxiliary functions which do not need water can enter a working state. When the auxiliary heating circuit is allowed to be in the working state, the corresponding auxiliary heating circuit can be switched on if the corresponding auxiliary function is required to be used, and the corresponding auxiliary heating circuit can also be switched off when the auxiliary function is not required to be used.
Fig. 3 is a block diagram of a heating control apparatus according to an embodiment of the present invention. The heating control device is used for a dishwasher including a heating circuit, as shown in fig. 3, the device includes: a water pressure detection module 10 for obtaining the water supply pressure of the dishwasher; and a control module 20 for controlling the heating circuit according to the water supply pressure. The water supply pressure is preferably a water pressure of a pumping passage of the water supply device. The water supply device may be, for example, a water supply pump or a water valve, etc., and if the water supply device is opened, the water pressure in the pumping channel of the water supply device will rise, and if the water supply device is closed, the water pressure in the pumping channel of the water supply device will not be detected or only be detected to a small extent.
Fig. 4 is a block diagram of a heating control apparatus according to another embodiment of the present invention. As shown in fig. 4, the control module comprises a conversion module 21 for: when the water supply pressure reaches a water pressure threshold value, switching to a state allowing the main heating circuit to be in a working state; and when the water supply pressure is lower than the water pressure threshold value, switching to not allow the main heating circuit to be in the working state.
In another embodiment, the heating circuit may further comprise a secondary heating circuit for providing heat required for an auxiliary function of the dishwasher. Wherein the auxiliary function may preferably include high-temperature steam sterilization, hot air drying, etc. At this time, the conversion module 21 may be further configured to: when the water supply pressure reaches a water pressure threshold value, the auxiliary heating circuit is converted into a state that the auxiliary heating circuit is not allowed to be in a working state; and switching to allow the sub heating circuit to be in an operating state when the water supply pressure is lower than the water pressure threshold value.
Fig. 5 is a block diagram of a heating control apparatus according to another embodiment of the present invention. As shown in fig. 5, the switching module may include a switch SW, and the main heating circuit and the sub-heating circuit may be controlled by an electromagnetic switch (e.g., a relay). In fig. 5, a first relay controls the water supply device, a second relay controls the main heating circuit, a third relay controls the first sub-heating circuit, and a fourth relay controls the second sub-heating circuit.
The first auxiliary heating circuit and the second auxiliary heating circuit are both parts which need to work under the condition of not spraying water in the inner container of the dishwasher, for example, the first auxiliary heating circuit can comprise a steam generator for high-temperature steam sterilization, and the second auxiliary heating circuit can comprise a heating part for hot air drying. In addition, the change-over switch SW can be a waterless pressure protection switch, and can be connected to a water pumping channel of the water supply device, when spraying is carried out without water, the common end 1 of the change-over switch SW is connected with the contact 2, the MCU can control the starting or stopping of the first auxiliary heating circuit or the second auxiliary heating circuit, but cannot control the starting of the main heating circuit; on the contrary, when water is sprayed, the common end 1 of the change-over switch SW is connected with the contact 3, the MCU can control the starting or stopping of the main heating, but cannot control the starting of the first auxiliary heating circuit or the second auxiliary heating circuit. Therefore, the safe and effective control of the main heating circuit and the auxiliary heating circuit can be realized.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (5)
1. A heating control method for a dishwasher, the dishwasher including a heating circuit, the method comprising:
acquiring water supply pressure of the dishwasher, wherein the water supply pressure is the water pressure of a water supply device water lifting passage; and
controlling the heating circuit according to the water supply pressure,
wherein the heating circuit includes a main heating circuit for heating the washing water, the controlling of the heating circuit according to the water pressure of the water supply includes:
when the water supply pressure reaches a water pressure threshold value, allowing the main heating circuit to be in a working state; and
when the water supply pressure is lower than the water pressure threshold value, the main heating circuit is not allowed to be in an operating state,
wherein the dishwasher further includes a sub-heating circuit for providing heat required for an auxiliary function of the dishwasher, the controlling the heating circuit according to the water pressure of the water supply further includes:
when the water supply pressure reaches a water pressure threshold value, the auxiliary heating circuit is not allowed to be in a working state; and
when the water supply pressure is lower than the water pressure threshold value, the auxiliary heating circuit is allowed to be in an operating state.
2. The heating control method according to claim 1, wherein the auxiliary function includes high-temperature steam sterilization and/or hot-air drying.
3. A heating control device for a dishwasher, the dishwasher comprising a heating circuit, the device comprising:
the water pressure detection module is used for acquiring the water supply pressure of the dishwasher, wherein the water supply pressure is the water pressure of a water pumping channel of a water supply device; and
a control module for controlling the heating circuit according to the water supply pressure,
wherein the heating circuit includes a main heating circuit for heating the washing water, the control module includes a conversion module for:
when the water supply pressure reaches a water pressure threshold value, switching to a state allowing the main heating circuit to be in a working state; and
when the water supply pressure is lower than the water pressure threshold value, switching to not allow the main heating circuit to be in the working state,
wherein the dishwasher further comprises a secondary heating circuit for providing heat required for the auxiliary function, the conversion module being further adapted to:
when the water supply pressure reaches a water pressure threshold value, switching to a state that the auxiliary heating circuit is not allowed to be in a working state; and
when the water supply pressure is lower than the water pressure threshold value, the auxiliary heating circuit is switched to be allowed to be in the working state.
4. The heating control method according to claim 3, wherein the auxiliary function includes a high-temperature steam sterilizing function and/or a hot-air drying function.
5. A machine-readable storage medium having instructions stored thereon for causing a machine to perform the heating control method of any one of claims 1-2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711330066.7A CN108132623B (en) | 2017-12-13 | 2017-12-13 | Heating control method and device for dish washing machine |
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| CN201711330066.7A CN108132623B (en) | 2017-12-13 | 2017-12-13 | Heating control method and device for dish washing machine |
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| CN108132623A CN108132623A (en) | 2018-06-08 |
| CN108132623B true CN108132623B (en) | 2022-11-25 |
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| CN109276218A (en) * | 2018-10-08 | 2019-01-29 | 珠海格力电器股份有限公司 | Dish washer control method, device, dish-washing machine and storage medium |
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| JP2003290115A (en) * | 2002-03-29 | 2003-10-14 | Matsushita Electric Ind Co Ltd | Washing device |
| JP2004283431A (en) * | 2003-03-24 | 2004-10-14 | Toto Ltd | Dish washer/dryer |
| EP2562302A2 (en) * | 2011-08-22 | 2013-02-27 | LG Electronics | Home appliance including steam generator and controlling method of the same |
| CN102953254A (en) * | 2011-08-22 | 2013-03-06 | Lg电子株式会社 | Controlling method of a washing machine including steam generator |
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| KR101268714B1 (en) * | 2006-04-25 | 2013-05-28 | 엘지전자 주식회사 | Dish washer and Controlling method thereof |
| CN200989656Y (en) * | 2006-12-09 | 2007-12-12 | 海尔集团公司 | Immediate heating leakage protection wall water heater |
| CN201533930U (en) * | 2009-09-25 | 2010-07-28 | 陈罘杲 | Novel body cavity cleaning hydrotherapy instrument |
| CN102045903A (en) * | 2010-12-31 | 2011-05-04 | 北京华进创威电子有限公司 | Method for protecting induction heating coil by utilizing water flow relay |
| CN102813493B (en) * | 2012-08-14 | 2016-04-20 | 苟仲武 | A kind of energy-saving ultrasonic wave dishwasher |
| CN103994570B (en) * | 2014-05-29 | 2019-08-27 | 东辉休闲运动用品(上海)有限公司 | A kind of Multi-layer warming unit ptc heater |
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| JP2003290115A (en) * | 2002-03-29 | 2003-10-14 | Matsushita Electric Ind Co Ltd | Washing device |
| JP2004283431A (en) * | 2003-03-24 | 2004-10-14 | Toto Ltd | Dish washer/dryer |
| EP2562302A2 (en) * | 2011-08-22 | 2013-02-27 | LG Electronics | Home appliance including steam generator and controlling method of the same |
| CN102953254A (en) * | 2011-08-22 | 2013-03-06 | Lg电子株式会社 | Controlling method of a washing machine including steam generator |
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