CN104814706A - Dish washer and heating wash protection and control method and device thereof - Google Patents
Dish washer and heating wash protection and control method and device thereof Download PDFInfo
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- CN104814706A CN104814706A CN201510194004.2A CN201510194004A CN104814706A CN 104814706 A CN104814706 A CN 104814706A CN 201510194004 A CN201510194004 A CN 201510194004A CN 104814706 A CN104814706 A CN 104814706A
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Abstract
The invention belongs to the technical field of dish washer control, and provides a dish washer, and a heating wash protection and control method and a heating wash protection and control device thereof. The heating wash protection and control method of the dish washer includes: when the dish washer is in a heating wash state, connecting a washing pump with a power source so as to power on the washing pump and enable the washing pump to work, and then detecting whether a pressure switch is closed, if yes, connecting the pressure switch with the power source so as to power on a heating device and enable the heating device to work, or if no, counting the number of detection times, and judging whether count data reaches a preset number of the direction times, if no, continuing to connect the washing pump with the power source so as to power on the washing pump and enable the washing pump to work, and detecting whether the pressure switch is closed, or if yes, disconnecting a circuit between the washing pump and the power source so as to enable the washing pump to stop work, disconnecting a circuit between the pressure switch and the power source, and controlling the dish washer to send out an alarm prompt. Accordingly, power-off protection is achieved for the heating device and the washing pump when the dish washer is short of water or does not contain water and/or the washing pump can not run due to abnormity, and maintenance frequency and maintenance cost are reduced.
Description
Technical field
The invention belongs to dish-washing machine control technology field, particularly relate to a kind of dish-washing machine and heated scrub protecting control method and apparatus thereof.
Background technology
At present, dish-washing machine is widely used in as a kind of warewashing equipment the place that dining room, restaurant, family etc. need to use each dishware, to carry out batch washer to tableware, improves dishwashing detergent efficiency.Usually the heater element that water is heated and the washing pump carrying out rinsing process to tableware is configured with in dish-washing machine, when dish-washing machine performs washing operation to tableware, heater element and washing pump work simultaneously, heater element sprays the water temperature of tableware for improving, to improve cleanliness factor and the drying effect of tableware.
In the prior art, the heater element in dish-washing machine adopts fuse or temperature controller to protect, and in dish-washing machine running, if the water yield is normal, and washing pump normally works, then heater element can normally work; But, anhydrous state on the low side in the water yield or washing pump abnormal time, fuse or temperature controller can disconnect the current supply circuit of heater element in time dry combustion method is on fire to avoid heater element to occur.But because fuse is disposable protection device, it is changed with regard to needs, so can increase frequency of maintenance and maintenance cost after realizing once disconnecting the action of current supply circuit to heater element; And temperature controller has certain operating life cycle, under the condition of work of big current, repeatedly action there will be inefficacy, and its existence can not protect the risk of heater element in time.In addition, because washing pump adopts quiet dynamic seal to seal, if dish-washing machine no-load running in anhydrous situation, the sealing surface of washing pump can produce amount of heat, and then make sealing surface temperature distortion and sealing effectiveness cannot be reached, thus cause washing pump to leak and normal water circulation cannot be realized.And the motor in washing pump is because of failure exception during stall, then motor can generate heat when lasting energising, protects the motor in washing pump if not timely, can motor damage, and even can ignite time serious other devices, and cause fire.And in dish-washing machine running, unusual condition is occurred for above-mentioned heater element and washing pump, user cannot learn fast, and when user pinpoints the problems, damaging has appearred in the device such as heating system and washing pump, even cause even more serious consequence.
In sum; existing dish-washing machine cannot realize effectively protecting and sending alarm to heater element and washing pump when water shortage (comprising anhydrous condition) and/or washing pump cannot operate because of abnormal, thus causes that the security of dish-washing machine is low, frequency of maintenance is high and maintenance cost is high.
Summary of the invention
The object of the present invention is to provide a kind of heated scrub protecting control method of dish-washing machine, be intended to solve existing dish-washing machine and cannot realize effectively protecting and sending alarm and cause the problem that the security of dish-washing machine is low, frequency of maintenance is high and maintenance cost is high to heater element and washing pump when water shortage (comprising anhydrous condition) and/or washing pump cannot operate because of abnormal.
The present invention is achieved in that a kind of heated scrub protecting control method of dish-washing machine, and the pressure switch in dish-washing machine is connected with heater element; When the water yield in described dish-washing machine reaches specified water yield value and washing pump is in normal operating conditions, described pressure switch closes;
Described heated scrub protecting control method comprises the following steps:
A., when dish-washing machine is in heated scrub state, described washing pump and power supply is communicated with to make described washing pump energising work;
B. detect described pressure switch whether to close, be, then perform step C, no, then perform step D;
C. be communicated with described pressure switch and described power supply to make described heater element energising work, and return at the end of heated scrub process is not and perform step B;
D. detection number of times is counted, and judge whether enumeration data reaches default and detect number of times, is then perform step e, no, then return and perform step B;
E. the path disconnected between described washing pump and described power supply quits work to make described washing pump, and disconnects the path between described pressure switch and described power supply, and controls described dish-washing machine and send alarm.
Present invention also offers a kind of heated scrub protecting control device of dish-washing machine, it comprises pressure switch, and the first end of described pressure switch is connected with the live wire end of the heater element in described dish-washing machine; When the water yield in described dish-washing machine reaches specified water yield value and washing pump is in normal operating conditions, described pressure switch closes; The zero line side of described heater element is connected the zero line of described dish-washing machine with the zero line side of described washing pump, the live wire of described dish-washing machine is connected power supply with zero line;
Described heated scrub protecting control device also comprises detection control module, washing pump power control module and heating power control module, test side and the power end of described detection control module are connected first end and the live wire of described pressure switch respectively, controlled end and the controlled end of described heating power control module of described washing pump power control module are connected washing control end and the computer heating control end of described detection control module respectively, the electrical input of described washing pump power control module is all connected described live wire with the electrical input of described heating power control module, the electric output of described washing pump power control module connects the live wire end of described washing pump, the electric output of described heating power control module connects the second end of described pressure switch,
When dish-washing machine is in heated scrub state, described detection control module controls described washing pump power control module and is communicated with described washing pump and described power supply to make described washing pump energising work;
Whether described detection control module detects described pressure switch and closes;
When described pressure switch closes, whether described detection control module controls described heating power control module and is communicated with described pressure switch and described power supply to make described heater element energising work, and at the end of heated scrub process is not, continues to detect described pressure switch closes;
When described pressure switch is not closed, described detection control module counts detection number of times, and judges whether enumeration data reaches default and detect number of times;
Whether, when described enumeration data does not reach described default detection number of times, described detection control module continues to control described washing pump power control module and is communicated with described washing pump and power supply to make described washing pump energising work, and detect described pressure switch and close;
When described enumeration data reaches described default detection number of times, described detection control module controls the path that described washing pump power control module disconnects between described washing pump and described power supply and quits work to make described washing pump, and control described heating power control module and disconnect path between described pressure switch and described power supply, and control described dish-washing machine and send alarm.
Present invention also offers a kind of dish-washing machine comprising above-mentioned heated scrub protecting control device.
The present invention is by being in heated scrub state during at dish-washing machine, connection washing pump and power supply are to make washing pump energising work, then whether detected pressures switch closes, be, then be communicated with pressure switch and power supply to make heater element energising work, and at the end of heated scrub process is not, returns continuation detected pressures switch whether closes; No, then count detection number of times, and judge whether enumeration data reaches default and detect number of times, if not, then continuation connection washing pump and power supply are to make washing pump energising work, and whether detected pressures switch closes; If; then the path disconnected between washing pump and power supply quits work to make washing pump; and the path between opening pressure switch and power supply; and control dish-washing machine sends alarm; thus power-off protection can be realized when dish-washing machine water shortage (comprising anhydrous condition) and/or washing pump cannot operate because of abnormal to heater element and washing pump, and reduce frequency of maintenance and maintenance cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the heated scrub protecting control method of the dish-washing machine that the embodiment of the present invention provides;
Fig. 2 is the function structure chart of the heated scrub protecting control device of the dish-washing machine that the embodiment of the present invention provides;
Fig. 3 is the exemplary circuit structure chart of the heated scrub protecting control device of the dish-washing machine that the embodiment of the present invention provides;
Fig. 4 is the schematic diagram of the pressure switch assembly comprising pressure switch;
Fig. 5 is the explosive view of the pressure switch assembly shown in Fig. 4.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiments provide dish-washing machine and heated scrub protecting control method and apparatus thereof, wherein, the pressure switch in dish-washing machine is connected with heater element; When the water yield in dish-washing machine reaches specified water yield value and washing pump is in normal operating conditions, pressure switch closes; When water shortage in dish-washing machine (comprise and do not reach specified water yield value and anhydrous both of these case) and/or washing pump cannot operate because of abnormal, pressure switch can cannot close conducting because hydraulic pressure is not enough.
Fig. 1 shows the realization flow of the heated scrub protecting control method of the dish-washing machine that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
In step sl, when dish-washing machine enters heated scrub state, connection washing pump and power supply are to make washing pump energising work.
In step s 2, whether detected pressures switch closes, and is, then perform step S3, no, then perform step S4.
In step s3, connection pressure switch and power supply to make heater element energising work, and return execution step S2 at the end of heated scrub process is not.Because dish-washing machine also likely exists the situation that water shortage (comprising anhydrous condition) or washing pump cannot operate because of abnormal when being in heated scrub state; in order to realize whole process protection to heater element and washing pump in heated scrub process, continue to detect the closed situation of pressure switch so also need to return execution step S2 after step s 3.And if heated scrub process terminates, then perform step S2 without the need to returning.
In step s 4 which, detection number of times is counted, and judge whether enumeration data reaches default and detect number of times, is then perform step S5, no, then return and perform step S2.
Wherein, in order to accurately judge whether dish-washing machine exists water shortage, anhydrous or washing pump cannot operate because of abnormal, to reduce erroneous judgement probability, whether the embodiment of the present invention is by closing according to default detection number of cycles detected pressures switch, to improve judging nicety rate, preset detection number of times and be specifically as follows 3 times, also can set other different numerical value according to practical application request.
In step s 5, the path disconnected between washing pump and power supply quits work to make washing pump, and the path between opening pressure switch and power supply, and control dish-washing machine sends alarm.
Wherein, above-mentioned alarm can be pointed out for audible alarm, one or more combination in signal lamp alarm and fault message alarm.Audible alarm prompting refers to that dish-washing machine is sounded according to preset alarm audio signal; Signal lamp alarm refers to that dish-washing machine is luminous according to default lighting mode control signal lamp, such as, according to predeterminated frequency control signal lamp flashing; Fault message alarm refers to that the information display area of dish-washing machine shows fault message.
In above-mentioned heated scrub control method, due to pressure switch whether whether sufficient the or washing pump of the closed water yield that can reflect in dish-washing machine whether because of abnormal and cannot operate (as stall), so by being in heated scrub state at dish-washing machine time detected pressures switch whether close, to monitor the running status of the water yield and washing pump.
If washing pump normally works, but the water yield is less than specified water yield value (comprising anhydrous situation), the hydraulic pressure that then washing pump is produced in the course of the work is not enough to make pressure switch be converted to closure state from off-state, then the disconnection of pressure switch can make heater element obtain power supply from power supply and to quit work, the path that simultaneously also can be disconnected between washing pump and power supply by step S5 is quit work to make washing pump, and the path between opening pressure switch and power supply, thus can avoid heater element, when anhydrous or water shortage, dry combustion method caused potential safety hazard on fire occurs, the motor in washing pump can be avoided dry grinding to occur in the absence of water and causes washing pump in follow-up operation, occur the risk of leaking simultaneously.
If the water yield reaches specified water yield value, but washing pump cannot operate because of abnormal (as stall occurs), then hydraulic pressure is not enough to make pressure switch be converted to closure state from off-state, then the disconnection of pressure switch can make heater element obtain power supply from power supply and to quit work, the path that simultaneously also can be disconnected between washing pump and power supply by step S5 is quit work to make washing pump, and the path between opening pressure switch and power supply, thus the risk that the motor that when washing pump can be avoided cannot to operate because of abnormal, lasting energising causes is on fire.
And if the water yield is less than specified water yield value (comprising anhydrous situation); and washing pump cannot operate because of abnormal (as stall occurs); then there will be the situation of hydraulic pressure deficiency equally; so or perform according to above-mentioned steps S5, to realize power-off protection to heater element and washing pump.
When above-mentioned execution step S5, also can control dish-washing machine and send alarm, so that reminding user checks dish-washing machine.
Fig. 2 shows the modular structure of the heated scrub protecting control device of the dish-washing machine that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
Heated scrub protecting control device 100 comprises pressure switch PK1, and the first end of pressure switch PK1 is connected with the live wire end of the heater element 200 in dish-washing machine; When the water yield in dish-washing machine reaches specified water yield value and washing pump is in normal operating conditions, pressure switch PK1 closes; When water shortage in dish-washing machine (comprise and do not reach specified water yield value and anhydrous both of these case) and/or washing pump 300 cannot operate because of abnormal, pressure switch PK1 can cannot close conducting because hydraulic pressure is not enough.The zero line side of heater element 200 is connected the zero line N of dish-washing machine with the zero line side of washing pump 300, the live wire L of dish-washing machine is connected power supply with zero line N.
Heated scrub protecting control device 100 also comprises detection control module 101, washing pump power control module 102 and heating power control module 103, the first end of the test side of detection control module 101 and power end difference Bonding pressure switch P K1 and live wire, controlled end and the controlled end of heating power control module 103 of washing pump power control module 102 are connected washing control end and the computer heating control end of detection control module 101 respectively, the electrical input of washing pump power control module 102 is all connected live wire L with the electrical input of heating power control module 103, the electric output of washing pump power control module 102 connects the live wire end of washing pump 300, second end of the electric output Bonding pressure switch P K1 of heating power control module 103.
When dish-washing machine is in heated scrub state, detection control module 101 controls washing pump power control module 102 and is communicated with washing pump 300 and power supply and is energized work to make washing pump 300.
Whether detection control module 101 detected pressures switch P K1 closes.
Whether, when pressure switch PK1 closes, detection control module 101 controls heating power control module 103 and is communicated with pressure switch PK1 and power supply and is energized work to make heater element 200, and continue detected pressures switch P K1 and close.
When pressure switch PK1 is not closed, detection control module 101 counts detection number of times, and judges whether enumeration data reaches default and detect number of times.
Enumeration data do not reach preset detect number of times time, detection control module 101 continues to control washing pump power control module 102 and is communicated with washing pump 300 and power supply and is energized work to make washing pump 300, and whether detected pressures switch P K1 closes.
When enumeration data reaches default detection number of times, detection control module 101 controls the path that washing pump power control module 102 disconnects between washing pump 300 and power supply and quits work to make washing pump 300, and the path controlled between heating power control module 103 opening pressure switch P K1 and power supply, and control dish-washing machine sends alarm.
Fig. 3 shows the exemplary circuit structure of the heated scrub protecting control device 100 shown in Fig. 2, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
Detection control module 101 comprises:
Zener diode Z1, electric capacity C1, the first resistance R1, optocoupler U1 and master controller IC1;
The negative electrode of the anode of Zener diode Z1 and the light emitting diode of optocoupler U1 connects the power end that formed common contact is detection control module 101 altogether, the first end of electric capacity C1 is the test side of detection control module 101, second end of electric capacity C1 and the negative electrode of Zener diode Z1 are connected to the first end of the first resistance R1 altogether, second end of the first resistance R1 connects the anode of the light emitting diode of optocoupler U1, the collector and emitter of the phototriode of optocoupler U1 connects the first pin one and the ground of master controller IC1 respectively, second pin two 3 of master controller IC1 and three-prong 24 are respectively computer heating control end and the washing control end of detection control module 101.Wherein, master controller IC1 is the master devices in dish-washing machine, and it is for controlling the work of dish-washing machine, it can be single-chip microcomputer, arm processor or other possess the programming device of mathematical logic disposal ability.
Washing pump power control module 102 comprises:
Second resistance R2, the first NPN type triode Q1, the first diode D1 and the first relay R L1;
The first end of the second resistance R2 is the controlled end of washing pump power control module 102, second end of the second resistance R2 connects the base stage of the first NPN type triode Q1, the grounded emitter of the first NPN type triode Q1, the anode of the first diode D1 and the first common port of the first relay K 1 are connected to the colelctor electrode of the first NPN type triode Q1 altogether, the negative electrode of the first diode D1 and the second common port of the first relay K 1 are connected to dc source (as+12V dc source) altogether, the normally opened contact of the first relay K 1 and stationary contact are respectively the electrical input of washing pump power control module 102 and electric output.
Heating power control module 103 comprises:
3rd resistance R3, the second NPN type triode Q2, the second diode D2 and the second relay R L2;
The first end of the 3rd resistance R3 is the controlled end of heating power control module 103, second end of the 3rd resistance R3 connects the base stage of the second NPN type triode Q2, the grounded emitter of the second NPN type triode Q2, the anode of the second diode D2 and the first common port of the second relay K 2 are connected to the colelctor electrode of the second NPN type triode Q2 altogether, the negative electrode of the second diode D2 and the second common port of the second relay K 2 are connected to dc source (as+12V dc source) altogether, the normally opened contact of the second relay K 2 and stationary contact are respectively the electrical input of heating power control module 103 and electric output.
Below in conjunction with operation principle, the heated scrub protecting control device 100 shown in Fig. 3 is described further:
Due to pressure switch PK1 whether whether sufficient the or washing pump of the closed water yield that can reflect in dish-washing machine whether because of abnormal and cannot operate (as stall), so by being in heated scrub state at dish-washing machine time detected pressures switch P K1 whether close, to monitor the running status of the water yield and washing pump.
When dish-washing machine is in heated scrub state, master controller IC1 first exports high level and controls the first NPN type triode Q1 conducting by the first resistance R1, and then make the normally opened contact of the first relay R L1 and stationary contact close conducting, then now washing pump 300 is energized work, and then master controller IC1 is detected the on off state of pressure switch PK1 by optocoupler U1.
Normally work at washing pump 300, but when the water yield is less than specified water yield value (comprising anhydrous situation), the hydraulic pressure that then washing pump 300 is produced in the course of the work is not enough to make pressure switch PK1 be converted to closure state from off-state, then the disconnection of pressure switch PK1 can make heater element 200 obtain power supply by the second relay R L2 from power supply and to quit work, the now light emitting diode cut-off of optocoupler U1, so first pin one of master controller IC1 presents high-impedance state, so second pin two 3 of master controller IC1 and three-prong 24 meeting output low level simultaneously, end to control the first NPN type triode Q1 and the second NPN type triode Q2, and then the first relay R L1 and the second relay R L2 is all disconnected, thus the path that can disconnect between washing pump 300 and power supply quits work to make washing pump 300, and the path between opening pressure switch P K1 and power supply, avoid heater element 200, when anhydrous or water shortage, dry combustion method caused potential safety hazard on fire occurs, the motor in washing pump 300 can be avoided dry grinding to occur in the absence of water and causes washing pump in follow-up operation, occur the risk of leaking simultaneously.
Specified water yield value is reached in the water yield, but when washing pump cannot operate because of abnormal (as stall occurs), then hydraulic pressure is not enough to make pressure switch PK1 be converted to closure state from off-state, then the disconnection of pressure switch PK1 can make heater element 200 obtain power supply by the second relay R L2 from power supply and to quit work, the now light emitting diode cut-off of optocoupler U1, so first pin one of master controller IC1 presents high-impedance state, so second pin two 3 of master controller IC1 and three-prong 24 meeting output low level simultaneously, end to control the first NPN type triode Q1 and the second NPN type triode Q2, and then the first relay R L1 and the second relay R L2 is all disconnected, thus the path that can disconnect between washing pump 300 and power supply quits work to make washing pump 300, and the path between opening pressure switch P K1 and power supply, avoid the risk that motor that continuing when washing pump 300 cannot operate because of abnormal is energized causes is on fire.
And be less than specified water yield value (comprising anhydrous situation) in the water yield; and washing pump 300 cannot operate because of abnormal time (as stall occurs); then there will be the situation of hydraulic pressure deficiency equally; so operation principle is same as described above, to realize power-off protection to heater element 200 and washing pump 300.
Above-mentioned power-off protection is realized to heater element 200 and washing pump 300 time, master controller IC1 also can control dish-washing machine and send alarm, so that reminding user checks dish-washing machine.
In addition, for above-mentioned pressure switch PK1, as shown in Figure 4, pressure switch PK1 is arranged on tube connector 1, tube connector 1 is on the circulation waterway of dish-washing machine, and when the water yield is sufficient and washing pump 300 normally works, the hydraulic pressure in tube connector 1 can make pressure switch PK1 close.As shown in Figure 5, pressure switch PK1 comprises microswitch 10, switch bracket 11, diaphragm 12 and conduit 13, microswitch 10 fixed placement is in the screens on the top of switch bracket 11, diaphragm 12 is arranged between the bottom of switch bracket 11 and the top of conduit 13, and the bottom of conduit 13 connects above-mentioned tube connector 1.
Pressure switch PK1 is connected with the circulation waterway of dish-washing machine by conduit 13, and by diaphragm 12 sealing and pressure transmission, during water shortage in dish-washing machine, pressure switch PK1 is in open-circuit condition because hydraulic pressure deficiency; And it is sufficient in the water yield, but when washing pump 300 cannot operate because of abnormal, pressure switch PK1 only bears the static pressure of the water in the water tumbler of dish-washing machine, its pressure is delivered to deformation that diaphragm 12 makes it produce and is not enough to touch microswitch 10 and closes, so pressure switch PK1 is also normally open
In above process, even if master controller IC1 controls the second relay R L2 by the second NPN type triode Q1, pressure switch PK1 is communicated with power supply, heater element 200 meeting work that cannot be energized because pressure switch PK1 disconnects, can avoid heater element 200 to occur when water shortage or washing pump 300 cannot operate because of abnormal the risk that dry combustion method is on fire like this.After dish-washing machine has entered water and has entered heated scrub state, if the sufficient and washing pump 300 of the water yield normally works, then produced hydraulic pressure enters tube connector 1 by circulation waterway, and be delivered to diaphragm 12 by conduit 13, diaphragm 12 produces deformation according to hydraulic pressure and closes conducting to touch microswitch 10, then heater element 200 just can be energized work.
In sum, the embodiment of the present invention is by being in heated scrub state during at dish-washing machine, connection washing pump and power supply are to make washing pump energising work, then whether detected pressures switch closes, be, then be communicated with pressure switch and power supply to make heater element energising work, and at the end of heated scrub process is not, returns continuation detected pressures switch whether closes; No, then count detection number of times, and judge whether enumeration data reaches default and detect number of times, if not, then continuation connection washing pump and power supply are to make washing pump energising work, and whether detected pressures switch closes; If; then the path disconnected between washing pump and power supply quits work to make washing pump; and the path between opening pressure switch and power supply; and control dish-washing machine sends alarm; thus power-off protection can be realized when dish-washing machine water shortage (comprising anhydrous condition) and/or washing pump cannot operate because of abnormal to heater element and washing pump, and reduce frequency of maintenance and maintenance cost simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a heated scrub protecting control method for dish-washing machine, the pressure switch in dish-washing machine is connected with heater element; When the water yield in described dish-washing machine reaches specified water yield value and washing pump is in normal operating conditions, described pressure switch closes; It is characterized in that:
Described heated scrub protecting control method comprises the following steps:
A., when dish-washing machine is in heated scrub state, described washing pump and power supply is communicated with to make described washing pump energising work;
B. detect described pressure switch whether to close, be, then perform step C, no, then perform step D;
C. be communicated with described pressure switch and described power supply to make described heater element energising work, and return at the end of heated scrub process is not and perform step B;
D. detection number of times is counted, and judge whether enumeration data reaches default and detect number of times, is then perform step e, no, then return and perform step B;
E. the path disconnected between described washing pump and described power supply quits work to make described washing pump, and disconnects the path between described pressure switch and described power supply, and controls described dish-washing machine and send alarm.
2. heated scrub protecting control method as claimed in claim 1, it is characterized in that, described default detection number of times is 3 times.
3. a heated scrub protecting control device for dish-washing machine, is characterized in that, comprise pressure switch, and the first end of described pressure switch is connected with the live wire end of the heater element in described dish-washing machine; When the water yield in described dish-washing machine reaches specified water yield value and washing pump is in normal operating conditions, described pressure switch closes; The zero line side of described heater element is connected the zero line of described dish-washing machine with the zero line side of described washing pump, the live wire of described dish-washing machine is connected power supply with zero line;
Described heated scrub protecting control device also comprises detection control module, washing pump power control module and heating power control module, test side and the power end of described detection control module are connected first end and the live wire of described pressure switch respectively, controlled end and the controlled end of described heating power control module of described washing pump power control module are connected washing control end and the computer heating control end of described detection control module respectively, the electrical input of described washing pump power control module is all connected described live wire with the electrical input of described heating power control module, the electric output of described washing pump power control module connects the live wire end of described washing pump, the electric output of described heating power control module connects the second end of described pressure switch,
When dish-washing machine is in heated scrub state, described detection control module controls described washing pump power control module and is communicated with described washing pump and described power supply to make described washing pump energising work;
Whether described detection control module detects described pressure switch and closes;
When described pressure switch closes, whether described detection control module controls described heating power control module and is communicated with described pressure switch and described power supply to make described heater element energising work, and at the end of heated scrub process is not, continues to detect described pressure switch closes;
When described pressure switch is not closed, described detection control module counts detection number of times, and judges whether enumeration data reaches default and detect number of times;
Whether, when described enumeration data does not reach described default detection number of times, described detection control module continues to control described washing pump power control module and is communicated with described washing pump and power supply to make described washing pump energising work, and detect described pressure switch and close;
When described enumeration data reaches described default detection number of times, described detection control module controls the path that described washing pump power control module disconnects between described washing pump and described power supply and quits work to make described washing pump, and control described heating power control module and disconnect path between described pressure switch and described power supply, and control described dish-washing machine and send alarm.
4. heated scrub protecting control device as claimed in claim 3, it is characterized in that, described detection control module comprises:
Zener diode, electric capacity, the first resistance, optocoupler and master controller;
The negative electrode of the anode of described Zener diode and the light emitting diode of described optocoupler connects the power end that formed common contact is described detection control module altogether, the first end of described electric capacity is the test side of described detection control module, second end of described electric capacity and the negative electrode of described Zener diode are connected to the first end of described first resistance altogether, second end of described first resistance connects the anode of the light emitting diode of described optocoupler, the collector and emitter of the phototriode of described optocoupler connects the first pin and the ground of described master controller respectively, second pin of described master controller and three-prong are respectively computer heating control end and the washing control end of described detection control module.
5. heated scrub protecting control device as claimed in claim 3, it is characterized in that, described washing pump power control module comprises:
Second resistance, the first NPN type triode, the first diode and the first relay;
The first end of described second resistance is the controlled end of described washing pump power control module, second end of described second resistance connects the base stage of described first NPN type triode, the grounded emitter of described first NPN type triode, the anode of described first diode and the first common port of described first relay are connected to the colelctor electrode of described first NPN type triode altogether, the negative electrode of described first diode and the second common port of described first relay are connected to dc source altogether, the normally opened contact of described first relay and stationary contact are respectively the electrical input of described washing pump power control module and electric output.
6. heated scrub protecting control device as claimed in claim 3, it is characterized in that, described heating power control module comprises:
3rd resistance, the second NPN type triode, the second diode and the second relay;
The first end of described 3rd resistance is the controlled end of described heating power control module, second end of described 3rd resistance connects the base stage of described second NPN type triode, the grounded emitter of described second NPN type triode, the anode of described second diode and the first common port of described second relay are connected to the colelctor electrode of described second NPN type triode altogether, the negative electrode of described second diode and the second common port of described second relay are connected to dc source altogether, the normally opened contact of described second relay and stationary contact are respectively the electrical input of described heating power control module and electric output.
7. a dish-washing machine, is characterized in that, described dish-washing machine comprises the heated scrub protecting control device as described in any one of claim 3 to 6.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923767A (en) * | 2015-12-30 | 2017-07-07 | 杭州三花家电热管理系统有限公司 | Dish-washing machine and its control method |
| CN107854093A (en) * | 2017-11-24 | 2018-03-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Pressure switch component and water tank type dish-washing machine for water tank type dish-washing machine |
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| CN108553063A (en) * | 2018-06-06 | 2018-09-21 | 广东洁诺生活电器有限公司 | A kind of dish-washing machine draining detecting system and dish-washing machine |
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| CN111671371A (en) * | 2020-06-18 | 2020-09-18 | 上海明略人工智能(集团)有限公司 | Method and device for determining heating mode of dishwasher and storage medium |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19852569A1 (en) * | 1998-11-13 | 2000-05-18 | Miele & Cie | Circulation pump, in particular for water-bearing household appliances |
| KR20070015712A (en) * | 2005-08-01 | 2007-02-06 | 엘지전자 주식회사 | A dish washer and method of controlling the same |
| CN101199409A (en) * | 2007-08-31 | 2008-06-18 | 南京乐金熊猫电器有限公司 | Methdo for controlling dishware cleaner |
| KR100857803B1 (en) * | 2007-05-30 | 2008-09-09 | 엘지전자 주식회사 | Steam generator and dish washer having the same |
| CN101509688A (en) * | 2009-03-24 | 2009-08-19 | 阿姆斯壮机械（中国）有限公司 | Electric heating type steam humidifier |
| CN102305642A (en) * | 2011-07-26 | 2012-01-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Detection circuit and detection method for output signal of pressure sensor |
| CN202154660U (en) * | 2011-06-29 | 2012-03-07 | 美的集团有限公司 | Built-in heating pipe of dish washer |
| US20120055518A1 (en) * | 2010-09-02 | 2012-03-08 | Minchul Kim | Dishwasher |
| EP1464268B1 (en) * | 2003-04-01 | 2013-08-07 | Electrolux Home Products Corporation N.V. | Process for detecting the charge of the strainer arrangement of a dishwasher |
| CN203835807U (en) * | 2014-04-24 | 2014-09-17 | 芜湖美的洗涤电器制造有限公司 | Heating pump for dish washing machine and dish washing machine |
-
2015
- 2015-04-22 CN CN201510194004.2A patent/CN104814706B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19852569A1 (en) * | 1998-11-13 | 2000-05-18 | Miele & Cie | Circulation pump, in particular for water-bearing household appliances |
| EP1464268B1 (en) * | 2003-04-01 | 2013-08-07 | Electrolux Home Products Corporation N.V. | Process for detecting the charge of the strainer arrangement of a dishwasher |
| KR20070015712A (en) * | 2005-08-01 | 2007-02-06 | 엘지전자 주식회사 | A dish washer and method of controlling the same |
| KR100857803B1 (en) * | 2007-05-30 | 2008-09-09 | 엘지전자 주식회사 | Steam generator and dish washer having the same |
| CN101199409A (en) * | 2007-08-31 | 2008-06-18 | 南京乐金熊猫电器有限公司 | Methdo for controlling dishware cleaner |
| CN101509688A (en) * | 2009-03-24 | 2009-08-19 | 阿姆斯壮机械（中国）有限公司 | Electric heating type steam humidifier |
| US20120055518A1 (en) * | 2010-09-02 | 2012-03-08 | Minchul Kim | Dishwasher |
| CN202154660U (en) * | 2011-06-29 | 2012-03-07 | 美的集团有限公司 | Built-in heating pipe of dish washer |
| CN102305642A (en) * | 2011-07-26 | 2012-01-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Detection circuit and detection method for output signal of pressure sensor |
| CN203835807U (en) * | 2014-04-24 | 2014-09-17 | 芜湖美的洗涤电器制造有限公司 | Heating pump for dish washing machine and dish washing machine |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923767A (en) * | 2015-12-30 | 2017-07-07 | 杭州三花家电热管理系统有限公司 | Dish-washing machine and its control method |
| CN107854093A (en) * | 2017-11-24 | 2018-03-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Pressure switch component and water tank type dish-washing machine for water tank type dish-washing machine |
| CN107981814A (en) * | 2017-11-29 | 2018-05-04 | 广东顺德拉鲁设计有限公司 | The integrated flow promoter system of dish-washing machine |
| IT201800003914A1 (en) * | 2018-03-26 | 2019-09-26 | Irca Spa | FLUID HEATING DEVICE FOR HOUSEHOLD APPLIANCES |
| CN108594713A (en) * | 2018-05-14 | 2018-09-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor control method, dish-washing machine and computer readable storage medium |
| CN108742414A (en) * | 2018-05-23 | 2018-11-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine heating protection method, device and computer readable storage medium |
| CN108553063A (en) * | 2018-06-06 | 2018-09-21 | 广东洁诺生活电器有限公司 | A kind of dish-washing machine draining detecting system and dish-washing machine |
| CN108553063B (en) * | 2018-06-06 | 2024-05-17 | 广东洁诺生活电器有限公司 | Dish washer drainage detecting system and dish washer |
| CN108742452A (en) * | 2018-06-26 | 2018-11-06 | 宁波市鄞州拓创服饰有限公司 | A kind of dish-washing machine is without water pressure switch |
| US10934654B1 (en) | 2019-10-25 | 2021-03-02 | Haier Us Appliance Solutions, Inc. | Relay monitor circuit and secondary relay control for an appliance |
| CN111643026A (en) * | 2020-06-18 | 2020-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Washing system of dishwasher and control method thereof |
| CN111671371A (en) * | 2020-06-18 | 2020-09-18 | 上海明略人工智能(集团)有限公司 | Method and device for determining heating mode of dishwasher and storage medium |
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Effective date of registration: 20161202 Address after: 528311 Industrial Park, Beijiao Town, Shunde District, Guangdong, China, Foshan Applicant after: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. Address before: 241009 Anhui province Wuhu City Jiuhua Road No. 68 export processing zone Applicant before: Wuhu Midea Washing Appliance Manufacturing Co.,Ltd. |
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Effective date of registration: 20221221 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311 Beijiao Town Industrial Park, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. |
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