CN112065169B - Child lock control circuit, dish washing machine and control method thereof - Google Patents
Child lock control circuit, dish washing machine and control method thereof Download PDFInfo
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- CN112065169B CN112065169B CN202010998604.5A CN202010998604A CN112065169B CN 112065169 B CN112065169 B CN 112065169B CN 202010998604 A CN202010998604 A CN 202010998604A CN 112065169 B CN112065169 B CN 112065169B
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
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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
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
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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
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/005—Opening, closing of the circuit
- E05B2047/0054—Opening, closing of the circuit using microprocessor, printed circuits, or the like
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B2047/0072—Operation
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- Washing And Drying Of Tableware (AREA)
Abstract
The invention provides a child lock control circuit, a dish washer and a control method thereof, wherein the child lock control circuit is applied to the dish washer, the child lock is used for locking a door of the dish washer, and the child lock control circuit comprises: the control end of the first control circuit is externally connected with a first control signal, the first output end of the first control circuit is externally connected with a power supply, and the second output end of the first control circuit is connected with a power port of the child lock; the second control circuit includes: the first output end of the first controlled switch is connected with the other end of the child lock, the second output end of the first controlled switch is grounded, and the control end of the first controlled switch is externally connected with a second control signal. By implementing the invention, in the working process of the dish washing machine, the child lock works to lock the dish washing machine door through the first control signal and the second control signal, so that the problem that hot water is splashed out when the dish washing machine door is opened midway is avoided, the safe work of the dish washing machine is ensured, and the use experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a child lock control circuit, a dish washing machine and a control method thereof.
Background
As a common kitchen appliance, a dishwasher is more and more widely used in the life of people. The existing dish washer generally adopts high-temperature water with the temperature of about 70 ℃ to wash tableware. If the door is opened during the washing process, the dishwasher may cause the problem of high-temperature water splashing, thereby affecting the user experience.
At present, although a plurality of dish washers are provided with a child lock switch, the screen of an operation screen is locked through the child lock switch, so that the washing effect is prevented from being influenced by misoperation of children. The existing power supply requirements of many children locks in practical work are that a high voltage is firstly used for supplying power for a preset time, for example, 1s, and then a lower voltage is used for maintaining power supply. It still fails to solve the above-mentioned problem that the door opening operation of the dishwasher causes the hot water to be splashed during the washing process.
Disclosure of Invention
In view of this, embodiments of the present invention provide a child lock control circuit, a dishwasher and a control method thereof, so as to overcome the problem that hot water is splashed out due to a door opening operation of the dishwasher in a washing process in the prior art.
The embodiment of the invention provides a child lock control circuit, which is applied to a dish washer, wherein the child lock is used for locking a door of the dish washer, and the child lock control circuit comprises: a first control circuit and a second control circuit, wherein,
the control end of the first control circuit is externally connected with a first control signal, the first output end of the first control circuit is externally connected with a power supply, and the second output end of the first control circuit is connected with a power port of the child lock;
the second control circuit includes: and a first output end of the first controlled switch is connected with the other end of the child lock, a second output end of the first controlled switch is grounded, and a control end of the first controlled switch is externally connected with a second control signal.
Optionally, the power supply includes: the power supply voltage of the first power supply is greater than that of the second power supply;
the first control circuit includes: a second controlled switch, a third controlled switch, wherein,
the control end of the second controlled switch and the control end of the third controlled switch are externally connected with a first control signal;
the second output end of the second controlled switch and the first output end of the third controlled switch are connected with a power supply port of the child lock;
the first output end of the second controlled switch is externally connected with the first power supply;
and a second output end of the third controlled switch is externally connected with the second power supply.
Optionally, the power supply includes: the power supply voltage of the first power supply is greater than that of the second power supply;
the first control circuit includes: a fourth controlled switch and a single pole double throw electromagnetic relay, wherein,
the control end of the fourth controlled switch is externally connected with the first control signal, the first output end of the fourth controlled switch is connected with the first input end of the single-pole double-throw electromagnetic relay, and the second output end of the fourth controlled switch is grounded;
and a second input end of the single-pole double-throw electromagnetic relay is externally connected with a high-level signal, a normally open contact and a normally closed contact are respectively externally connected with the first power supply and the second power supply, and an output end of the normally open contact and the normally closed contact are connected with a power port of the child lock.
Optionally, the power supply includes: the power supply voltage of the first power supply is greater than that of the second power supply;
the first control circuit includes: a fifth controlled switch, a sixth controlled switch, a seventh controlled switch, a first electromagnetic relay, and a second electromagnetic relay,
the control end of the fifth controlled switch is externally connected with the first control signal, the first output end of the fifth controlled switch is connected with the first input end of the first electromagnetic relay, and the second output end of the fifth controlled switch is grounded;
the second input end of the first electromagnetic relay is externally connected with a high level signal, the third input end of the first electromagnetic relay is externally connected with the first power supply, and the output end of the first electromagnetic relay is connected with a power port of the child lock;
the control end of the sixth controlled switch is externally connected with the first control signal, the first output end of the sixth controlled switch is connected with the control end of the seventh controlled switch, and the second output end of the sixth controlled switch is externally connected with a high level signal;
a first output end of the seventh controlled switch is connected with a first input end of the second electromagnetic relay, and a second output end of the seventh controlled switch is grounded;
and a second input end of the second electromagnetic relay is externally connected with a high level signal, a third input end of the second electromagnetic relay is externally connected with the second power supply, and an output end of the second electromagnetic relay is connected with a power port of the child lock.
An embodiment of the present invention further provides a dishwasher, including: a child lock for locking a dishwasher door and a child lock control circuit according to another embodiment of the present invention.
The embodiment of the invention also provides a dishwasher control method, which is applied to the dishwasher provided by another embodiment of the invention and comprises the following steps:
acquiring an operation signal input by a user;
determining an operation program of the dishwasher according to the operation signal;
judging whether the running program is a washing program or not;
and when the running program is a washing program, generating a first control signal and a second control signal.
Optionally, the first control signal is a single pulse signal, and the second control signal is a high level signal.
Optionally, before generating the first control signal and the second control signal, the dishwasher control method further includes:
judging whether the dishwasher door is in a closed state or not;
generating the first control signal and the second control signal when the dishwasher door is in a closed state;
when the dishwasher door is in an open state, door closing prompt information is generated.
Optionally, the dishwasher control method further comprises:
monitoring whether the washing program is finished;
deactivating the second control signal when the washing program is ended.
Optionally, when the washing program is not ended, the dishwasher control method further includes:
and when a child lock release instruction input by a user is received, the second control signal is cancelled.
The technical scheme of the invention has the following advantages:
1. the child lock control circuit provided by the embodiment of the invention is used for locking the dishwasher door, and comprises a first control circuit and a second control circuit, wherein the first control circuit receives a first control signal to control the child lock to be electrified, and a first controlled switch in the second control circuit receives a second control signal to be conducted, so that the child lock is controlled to work to lock the dishwasher door, and therefore, in the working process of the dishwasher, the child lock works to lock the dishwasher door through the first control signal and the second control signal, so that the problem that hot water splashes out due to the fact that the dishwasher door is opened midway is avoided, the safe working of the dishwasher is ensured, and the user experience is improved.
2. The dishwasher provided by the embodiment of the invention comprises the child lock for locking the dishwasher door and the child lock control circuit provided by the other embodiment of the invention, and the dishwasher is provided with the child lock and the child lock control circuit, so that the child lock works through the first control signal and the second control signal to lock the dishwasher door, thereby avoiding the problem that hot water is splashed out when the dishwasher door is opened midway, ensuring the safe work of the dishwasher and improving the use experience of a user.
3. The dishwasher control method provided by the embodiment of the invention is applied to the dishwasher provided by another embodiment of the invention, and the dishwasher control method generates a first control signal and a second control signal to drive a child lock control circuit to work by identifying the operation signal of a user when the operation signal of the user represents a washing program, so as to control the child lock to work and further lock a dishwasher door, thereby avoiding the problem that hot water is splashed out when the dishwasher door is opened midway, ensuring the safe work of the dishwasher and improving the use experience of the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a child lock control circuit according to an embodiment of the present invention;
FIG. 2 is another schematic structural diagram of a child lock control circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another structure of the child lock control circuit according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of control signals according to an embodiment of the present invention;
FIG. 5 is a schematic view of the operation of a dishwasher in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural view of a dishwasher according to an embodiment of the present invention;
FIG. 7 is a flowchart of a dishwasher control method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In the prior art, although many dish washers are provided with a child lock switch, the screen of an operation screen is locked through the child lock switch, so that the washing effect is prevented from being influenced by misoperation of children. The existing power supply requirements of many children locks in practical work are that a high voltage is firstly used for supplying power for a preset time, for example, 1s, and then a lower voltage is used for maintaining power supply. It still fails to solve the above-mentioned problem that the door opening operation of the dishwasher causes the hot water to be splashed during the washing process.
In view of the above problem, an embodiment of the present invention provides a child lock control circuit applied to a dishwasher, the child lock being used for locking a door of the dishwasher, as shown in fig. 1, the child lock control circuit including: the child lock control circuit comprises a first control circuit 101 and a second control circuit 102, wherein a control end of the first control circuit 101 is externally connected with a first control signal (control 1 for short), a first output end is externally connected with a power supply, and a second output end is connected with a power port of the child lock; the second control circuit 102 includes: the first controlled switch Q1, the first output end of the first controlled switch Q1 is connected with the other end of the child lock, the second output end is grounded, and the control end is externally connected with a second control signal (control 2 for short).
Specifically, in an embodiment, as shown in fig. 1, the second control circuit 102 further includes: the circuit comprises a first resistor R1, a second resistor R2 and a first capacitor C1, wherein one end of the first resistor R1 is externally connected with a second control signal, the other end of the first resistor R1 is connected with the control end of a first controlled switch Q1, one end of the second resistor R2 is connected with the second output end of the first controlled switch Q1, the other end of the second resistor R2 is grounded, and the first capacitor C1 is connected in parallel with two ends of the second resistor R2.
Specifically, in one embodiment, the power supply requirement for the child lock in actual operation is to first supply power with a high voltage for a predetermined time, such as 1s, and then maintain the power supply with a lower voltage. Therefore, the above power supply includes: the power supply voltage of the first power supply VCC1 is greater than that of the second power supply VCC2, the first power supply VCC1 is used for providing a higher starting voltage for the child lock to start the child lock, and the second power supply VCC2 provides a working voltage for the child lock to maintain normal operation of the child lock.
Specifically, in an embodiment, as shown in fig. 1, the first control circuit 101 includes: the control circuit comprises a second controlled switch Q2 and a third controlled switch Q3, wherein the control end of the second controlled switch Q2 and the control end of the third controlled switch Q3 are externally connected with a first control signal; the second output end of the second controlled switch Q2 and the first output end of the third controlled switch Q3 are connected with the power supply port of the child lock; a first output end of the second controlled switch Q2 is externally connected with a first power supply VCC 1; the second output terminal of the third controlled switch Q3 is externally connected to a second power supply VCC 2.
In practical applications, the first controlled switch Q1, the second controlled switch Q2, and the third controlled switch Q3 are transistors, and it should be noted that in the embodiment of the present invention, the first controlled switch Q1 and the second controlled switch Q2 are NPN transistors, and the third controlled switch Q3 is a PNP transistor, but in practical applications, other switching devices may be used to implement the above-mentioned transistors, as long as the same functions as the above-mentioned transistors can be implemented, and the present invention is not limited thereto.
Specifically, in an embodiment, as shown in fig. 1, the first control circuit 101 further includes: the three-phase three-way switch comprises a third resistor R3 and a fourth resistor R4, wherein one end of the third resistor R3 is externally connected with a first control signal, the other end of the third resistor R3 is respectively connected with the control ends of a second controlled switch Q2 and a third controlled switch Q3, one end of the fourth resistor R4 is connected with a first output end of a third controlled switch Q3, and the other end of the fourth resistor R4 is connected with a power port of the child lock.
Specifically, in another alternative embodiment, as shown in fig. 2, the first control circuit 101 includes: the control end of the fourth controlled switch Q4 is externally connected with a first control signal, the first output end of the fourth controlled switch Q4 is connected with the first input end of the single-pole double-throw electromagnetic relay K, and the second output end of the fourth controlled switch Q4 is grounded; a second input end of the single-pole double-throw electromagnetic relay K is externally connected with a high level signal, a normally open contact and a normally closed contact are respectively and externally connected with a first power supply VCC1 and a second power supply VCC2, and an output end of the normally open contact and a power port of the child lock are connected. In practical application, because the child lock needs a high starting voltage to start, therefore, when the single-pole double-throw electromagnetic relay K is not electrified, although the child lock is connected with the second power supply VCC2, because the voltage of the second power supply VCC2 is lower than the starting voltage of the child lock, the child lock cannot be started, and only after the single-pole double-throw electromagnetic relay K is electrified, the normally closed contact is switched to the normally open contact, and then when the first power supply VCC1 is switched on, the child lock can be started.
In practical applications, the fourth controlled switch Q4 is a transistor, and it should be noted that, in the embodiment of the present invention, the fourth controlled switch Q4 is an NPN-type transistor, but in practical applications, other switching devices may be used to implement the fourth controlled switch Q4, as long as the same function as the transistor can be implemented, and the present invention is not limited thereto.
Specifically, in an embodiment, as shown in fig. 2, the first control circuit 101 further includes: and one end of the fifth resistor R5 is externally connected with the first control signal, and the other end of the fifth resistor R5 is connected with the control end of the fourth controlled switch Q4.
Specifically, in yet another alternative embodiment, as shown in fig. 3, the first control circuit 101 includes: the control circuit comprises a fifth controlled switch Q5, a sixth controlled switch Q6, a seventh controlled switch Q7, a first electromagnetic relay K1 and a second electromagnetic relay K2, wherein the control end of the fifth controlled switch Q5 is externally connected with a first control signal, the first output end of the fifth controlled switch Q5 is connected with the first input end of the first electromagnetic relay K1, and the second output end of the fifth controlled switch Q3526 is grounded; a second input end of the first electromagnetic relay K1 is externally connected with a high level signal, a third input end of the first electromagnetic relay K1 is externally connected with a first power supply VCC1, and an output end of the first electromagnetic relay K1 is connected with a power port of the children lock; a control end of the sixth controlled switch Q6 is externally connected with a first control signal, a first output end of the sixth controlled switch Q6 is connected with a control end of the seventh controlled switch Q7, and a second output end of the sixth controlled switch Q6 is externally connected with a high level signal; a first output end of the seventh controlled switch Q7 is connected with a first input end of the second electromagnetic relay K2, and a second output end is grounded; a second input end of the second electromagnetic relay K2 is externally connected with a high level signal, a third input end of the second electromagnetic relay K2 is externally connected with a second power supply VCC2, and an output end of the second electromagnetic relay K2 is connected with a power port of the children lock.
In practical applications, the fifth controlled switch Q5, the sixth controlled switch Q6, and the seventh controlled switch Q7 are transistors, and it should be noted that, in the embodiment of the present invention, the fifth controlled switch Q5 and the seventh controlled switch Q7 are NPN transistors, and the sixth controlled switch Q6 is a PNP transistor, but in practical applications, other switching devices may be used to implement the fifth controlled switch Q5, the sixth controlled switch Q6, and the seventh controlled switch Q7, as long as the same functions as the NPN transistors can be implemented, and the present invention is not limited thereto.
Specifically, in an embodiment, as shown in fig. 3, the first control circuit 101 further includes: the circuit comprises a sixth resistor R6, a seventh resistor R7 and an eighth resistor R8, wherein one end of the sixth resistor R6 is externally connected with a first control signal, the other end of the sixth resistor R6 is connected with the control end of a fourth controlled switch Q4, one end of the seventh resistor R7 is externally connected with the first control signal, the other end of the seventh resistor R7 is connected with the control end of a sixth controlled switch Q6, one end of the eighth resistor R8 is connected with the first output end of the sixth controlled switch Q6, and the other end of the eighth resistor R8 is connected with the control end of a seventh controlled switch Q7.
The operation principle of the child lock control circuit provided by the embodiment of the present invention will be described in detail with reference to specific application examples.
Taking the child lock control circuit shown in fig. 1 as an example, it is assumed that the actual use requirements of the child lock are as follows: after being powered for 1s by using the voltage of VCC1, the voltage is maintained by using the voltage of VCC 2. The first control signal and the second control signal are connected with the MCU arranged in the dishwasher, when the dishwasher is in a washing working mode, the MCU outputs the first control signal and the second control signal as shown in figure 4, that is, when the control 1 and the control 2 output high levels, the first controlled switch Q1 and the second controlled switch Q2 are turned on, the third controlled switch Q3 is turned off, the VCC1 supplies power to the child lock, after 1s, the second controlled switch Q2 is turned off, the third controlled switch Q3 is turned on, and then VCC2 supplies power to the child lock, which meets the use requirement of the child lock, the dishwasher door is locked by the child lock, so that the dishwasher door can not be opened, thereby avoiding the problem of hot water splashing caused by mistakenly opening the door in the washing process, and then after the washing is finished, since the control 2 is deactivated to become the low level signal, the first controlled switch Q1 is turned off, and at this time, the child lock stops working, and the user can open the door of the dishwasher to remove washed dishes, etc. This child locks control circuit can be in a flexible way according to dish washer MCU's control signal to the dish washer door shutting to prevent that dish washer from opening the dish washer door at washing operation in-process mistake and causing the potential safety hazard, improved user's use and experienced. FIG. 5 is a schematic diagram of the operation of a dishwasher according to an exemplary embodiment of the present invention. It should be noted that the working principle and the working process of the child lock control circuit shown in fig. 2 and 3 are similar to those of the child lock control circuit shown in fig. 1, and are not described again here.
Through the cooperation of the above components, the child lock control circuit provided by the embodiment of the invention is used for locking the dishwasher door, and the child lock control circuit is composed of a first control circuit and a second control circuit, wherein the first control circuit controls the child lock to be powered on after receiving a first control signal, and a first controlled switch in the second control circuit receives a second control signal to be switched on, so that the child lock is controlled to work to lock the dishwasher door, and therefore, in the working process of the dishwasher, the child lock works to lock the dishwasher door through the first control signal and the second control signal, so that the problem that hot water is splashed out when the dishwasher door is opened midway is avoided, the safe working of the dishwasher is ensured, and the use experience of a user is improved.
An embodiment of the present invention also provides a dishwasher, as shown in fig. 6, including: a child lock 201 for locking a dishwasher door and a child lock control circuit 202 in another embodiment of the invention.
Through the cooperative cooperation of the components, the dishwasher provided by the embodiment of the invention is provided with the child lock and the child lock control circuit, and the child lock works to lock the dishwasher door through the first control signal and the second control signal, so that the problem that hot water is splashed out when the dishwasher door is opened midway is avoided, the safe work of the dishwasher is ensured, and the use experience of a user is improved.
The embodiment of the present invention further provides a control method of a dishwasher, which is applied to the controller of the dishwasher in the above embodiments, the controller may be an MCU built in the dishwasher, as shown in fig. 7, and the control method of the dishwasher specifically includes the following steps:
step S101: and acquiring an operation signal input by a user. In practical application, a user can control the dishwasher to work through the operation panel of the dishwasher.
Step S102: the operating program of the dishwasher is determined based on the operating signal. In particular, different operations of the user correspond to different operation programs of the dishwasher, and thus the operation program currently selected by the user can be determined through the operation signal.
Step S103: and judging whether the running program is a washing program. In particular, if the dishwasher is in a washing program, since the dishwasher door cannot be opened during the washing process in order to prevent the washing hot water from being splashed out, it is necessary to lock the dishwasher door by controlling the child lock operation so as to prevent the dishwasher door from being opened due to a malfunction.
Step S104: when the operation program is a washing program, a first control signal and a second control signal are generated. In practical applications, the first control signal is a single pulse signal, and the second control signal is a high level signal. The duration of the single pulse signal may be 1s, and may be specifically adjusted according to the starting time of the child lock, which is not limited in the present invention.
Specifically, in an embodiment, before generating the first control signal and the second control signal, the dishwasher control method further includes:
step S105: judging whether the dishwasher door is in a closed state or not; when the dishwasher door is in a closed state, a first control signal and a second control signal are generated. In practical application, only when the dishwasher door is in a closed state, the child lock can realize the locking of the dishwasher door. Therefore, it is necessary to ensure that the dishwasher door is closed before controlling the operation of the child lock.
Step S106: when the dishwasher door is in an open state, door closing prompt information is generated. In practical application, the dishwasher door is closed when the washing program, if the dishwasher door is in the state of opening, the automatic generation is closed the door prompt message and is closed the door with the suggestion user, avoids influencing the washing effect, causes potential safety hazard etc..
Specifically, in an embodiment, the above-mentioned dishwasher control method further includes the steps of:
step S107: it is monitored whether the washing process is finished. In practical application, in order to further improve the user experience, the child lock can be released by monitoring the progress of the washing program.
Step S108: when the washing program is finished, the second control signal is deactivated. Through revoking the second control signal, control child's lock stop work, and then has relieved the shutting state of dishwasher door, and the user can open dishwasher door.
Step S109: when the washing program is not finished, the second control signal is cancelled when a child lock release instruction input by a user is received. In practical application, if the dish washer trouble appears in the in-process of washing, cause unable continuation washing procedure, when needing to overhaul dish washer, need open the dish washer door, but because dish washer still is in washing procedure, the child lock is still working this moment, can cause the dish washer door to be unable to open, at this moment, the user can remove the instruction through the child lock that sets up in advance and come manual child lock of removing, the flexibility and the adaptability of child lock control have been improved, satisfy the demand of more application scenes, further improve user's use experience.
Through the steps S101 to S109, the dishwasher control method provided by the embodiment of the present invention is applied to the dishwasher provided by another embodiment of the present invention, and the dishwasher control method generates the first control signal and the second control signal to drive the child lock control circuit to operate when the user operation signal indicates the washing program by recognizing the operation signal of the user, so as to control the child lock to operate, and further lock the dishwasher door, thereby avoiding the problem that hot water is splashed out when the dishwasher door is opened midway, ensuring the safe operation of the dishwasher, improving the user experience, and automatically releasing the child lock when the dishwasher finishes the washing operation, ensuring the normal opening of the dishwasher door, and in addition, when the dishwasher breaks down during the washing process, also realizing the manual release of the child lock by the user.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A child lock control circuit for a dishwasher, the child lock for locking a dishwasher door, the child lock control circuit comprising: a first control circuit and a second control circuit, wherein,
the control end of the first control circuit is externally connected with a first control signal, the first output end of the first control circuit is externally connected with a power supply, and the second output end of the first control circuit is connected with a power port of the child lock;
the second control circuit includes: the first output end of the first controlled switch is connected with the other end of the child lock, the second output end of the first controlled switch is grounded, and the control end of the first controlled switch is externally connected with a second control signal;
the power supply includes: the power supply voltage of the first power supply is greater than that of the second power supply;
the first control circuit includes: a second controlled switch, a third controlled switch, wherein,
the control end of the second controlled switch and the control end of the third controlled switch are externally connected with a first control signal;
the second output end of the second controlled switch and the first output end of the third controlled switch are connected with a power supply port of the child lock;
the first output end of the second controlled switch is externally connected with the first power supply;
and a second output end of the third controlled switch is externally connected with the second power supply.
2. A child lock control circuit for a dishwasher, the child lock for locking a dishwasher door, the child lock control circuit comprising: a first control circuit and a second control circuit, wherein,
the control end of the first control circuit is externally connected with a first control signal, the first output end of the first control circuit is externally connected with a power supply, and the second output end of the first control circuit is connected with a power port of the child lock;
the second control circuit includes: the first output end of the first controlled switch is connected with the other end of the child lock, the second output end of the first controlled switch is grounded, and the control end of the first controlled switch is externally connected with a second control signal;
the power supply includes: the power supply voltage of the first power supply is greater than that of the second power supply;
the first control circuit includes: a fourth controlled switch and a single pole double throw electromagnetic relay, wherein,
the control end of the fourth controlled switch is externally connected with the first control signal, the first output end of the fourth controlled switch is connected with the first input end of the single-pole double-throw electromagnetic relay, and the second output end of the fourth controlled switch is grounded;
and a second input end of the single-pole double-throw electromagnetic relay is externally connected with a high-level signal, a normally open contact and a normally closed contact are respectively externally connected with the first power supply and the second power supply, and an output end of the normally open contact and the normally closed contact are connected with a power port of the child lock.
3. A child lock control circuit for a dishwasher, the child lock for locking a dishwasher door, the child lock control circuit comprising: a first control circuit and a second control circuit, wherein,
the control end of the first control circuit is externally connected with a first control signal, the first output end of the first control circuit is externally connected with a power supply, and the second output end of the first control circuit is connected with a power port of the child lock;
the second control circuit includes: the first output end of the first controlled switch is connected with the other end of the child lock, the second output end of the first controlled switch is grounded, and the control end of the first controlled switch is externally connected with a second control signal;
the power supply includes: the power supply voltage of the first power supply is greater than that of the second power supply;
the first control circuit includes: a fifth controlled switch, a sixth controlled switch, a seventh controlled switch, a first electromagnetic relay, and a second electromagnetic relay,
the control end of the fifth controlled switch is externally connected with the first control signal, the first output end of the fifth controlled switch is connected with the first input end of the first electromagnetic relay, and the second output end of the fifth controlled switch is grounded;
the second input end of the first electromagnetic relay is externally connected with a high level signal, the third input end of the first electromagnetic relay is externally connected with the first power supply, and the output end of the first electromagnetic relay is connected with a power port of the child lock;
the control end of the sixth controlled switch is externally connected with the first control signal, the first output end of the sixth controlled switch is connected with the control end of the seventh controlled switch, and the second output end of the sixth controlled switch is externally connected with a high level signal;
a first output end of the seventh controlled switch is connected with a first input end of the second electromagnetic relay, and a second output end of the seventh controlled switch is grounded;
and a second input end of the second electromagnetic relay is externally connected with a high level signal, a third input end of the second electromagnetic relay is externally connected with the second power supply, and an output end of the second electromagnetic relay is connected with a power port of the child lock.
4. A dishwasher, comprising: a child lock for locking a dishwasher door and a child lock control circuit as claimed in any one of claims 1 to 3.
5. A dishwasher control method applied to the dishwasher according to claim 4, wherein the dishwasher control method comprises:
acquiring an operation signal input by a user;
determining an operation program of the dishwasher according to the operation signal;
judging whether the running program is a washing program or not;
and when the running program is a washing program, generating a first control signal and a second control signal.
6. The control method of claim 5, wherein the first control signal is a single pulse signal and the second control signal is a high level signal.
7. The dishwasher control method of claim 5, further comprising, before generating the first control signal and the second control signal:
judging whether the dishwasher door is in a closed state or not;
generating the first control signal and the second control signal when the dishwasher door is in a closed state;
when the dishwasher door is in an open state, door closing prompt information is generated.
8. The dishwasher control method according to claim 6, further comprising:
monitoring whether the washing program is finished;
deactivating the second control signal when the washing program is ended.
9. The dishwasher control method according to claim 6, wherein when the washing program is not ended, the dishwasher control method further comprises:
and when a child lock release instruction input by a user is received, the second control signal is cancelled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998604.5A CN112065169B (en) | 2020-09-21 | 2020-09-21 | Child lock control circuit, dish washing machine and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010998604.5A CN112065169B (en) | 2020-09-21 | 2020-09-21 | Child lock control circuit, dish washing machine and control method thereof |
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| CN112065169A CN112065169A (en) | 2020-12-11 |
| CN112065169B true CN112065169B (en) | 2021-07-06 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239289A (en) * | 2008-12-05 | 2011-11-09 | Bsh博世和西门子家用电器有限公司 | Domestic appliance having automatic switch-off |
| CN103046294A (en) * | 2011-10-14 | 2013-04-17 | 博西华电器（江苏）有限公司 | Washing machine and control method thereof |
| CN203469074U (en) * | 2013-08-08 | 2014-03-12 | 杭州超瑞科技有限公司 | Children toy disinfection cabinet circuit structure |
| CN107675423A (en) * | 2017-10-12 | 2018-02-09 | 无锡小天鹅股份有限公司 | A kind of aeration control method of washing machine, system and washing machine |
| US10597904B2 (en) * | 2013-01-17 | 2020-03-24 | Illinois Tool Works Inc. | Appliance lock with voltage encoded wiring |
| CN210684259U (en) * | 2019-08-02 | 2020-06-05 | 无锡小天鹅电器有限公司 | Door lock control device and washing equipment with same |
-
2020
- 2020-09-21 CN CN202010998604.5A patent/CN112065169B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239289A (en) * | 2008-12-05 | 2011-11-09 | Bsh博世和西门子家用电器有限公司 | Domestic appliance having automatic switch-off |
| CN103046294A (en) * | 2011-10-14 | 2013-04-17 | 博西华电器（江苏）有限公司 | Washing machine and control method thereof |
| US10597904B2 (en) * | 2013-01-17 | 2020-03-24 | Illinois Tool Works Inc. | Appliance lock with voltage encoded wiring |
| CN203469074U (en) * | 2013-08-08 | 2014-03-12 | 杭州超瑞科技有限公司 | Children toy disinfection cabinet circuit structure |
| CN107675423A (en) * | 2017-10-12 | 2018-02-09 | 无锡小天鹅股份有限公司 | A kind of aeration control method of washing machine, system and washing machine |
| CN210684259U (en) * | 2019-08-02 | 2020-06-05 | 无锡小天鹅电器有限公司 | Door lock control device and washing equipment with same |
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