CN106931716A - A kind of control device of refrigerator and its control method - Google Patents
A kind of control device of refrigerator and its control method Download PDFInfo
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- CN106931716A CN106931716A CN201710159447.7A CN201710159447A CN106931716A CN 106931716 A CN106931716 A CN 106931716A CN 201710159447 A CN201710159447 A CN 201710159447A CN 106931716 A CN106931716 A CN 106931716A
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- receiving box
- water receiving
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- 238000000034 method Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000001514 detection method Methods 0.000 claims abstract description 45
- 230000002159 abnormal effect Effects 0.000 claims abstract description 41
- 230000005669 field effect Effects 0.000 claims description 23
- 230000001052 transient effect Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 239000007779 soft material Substances 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 238000011897 real-time detection Methods 0.000 abstract 1
- 101100236764 Caenorhabditis elegans mcu-1 gene Proteins 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- Combustion & Propulsion (AREA)
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- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of control device of refrigerator and its control method.The control device of refrigerator includes：Detection module, in the course of work of refrigerator, whether real-time detection power supply to occur exception；Interlocking module, the water spilage tray for controlling refrigerator bottom is released；Drive module, for when detection module detection power supply occurs abnormal, the abnormal control signal according to detection module to drive the water spilage tray that interlocking module will be located at refrigerator bottom to release, and is received with the water melted after refrigerator is powered off by water spilage tray.The invention detects that when there is power down or operation irregularity in refrigerator generation power supply, it is automatic to drive interlocking module to release the water spilage tray of refrigerator bottom, it is water to the property loss caused by user that refrigerator is prevented effectively from because power-off ice or frost can melt, it is ensured that the person and property safety of user.
Description
Technical Field
The invention relates to the technical field of intelligent household appliance control, in particular to a refrigerator control device and a control method thereof.
Background
Refrigerators are household electrical appliances essential for household life. But many users are plagued by a problem: when the refrigerator is abnormally powered off or works abnormally, the temperature in the refrigerator body can rise, and at the moment, ice or frost in the refrigerator (particularly a freezing chamber) can be melted into water and flows onto the floor and furniture of a user, so that certain property loss is caused; at this time, if the liquid flowing out passes through the charged object, the personal safety problem is even caused.
Disclosure of Invention
The invention aims to provide a refrigerator control device and a control method thereof, which are used for solving the problems of property loss and personal safety of users caused by melting ice or frost into water when the conventional refrigerator works abnormally.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a refrigerator control apparatus including:
the detection module is used for detecting whether the power supply is abnormal in real time in the working process of the refrigerator;
the linkage module is used for controlling the water receiving box at the bottom of the refrigerator to be pushed out;
and the driving module is used for driving the linkage module to push out the water receiving box positioned at the bottom of the refrigerator according to the abnormal control signal of the detection module when the detection module detects that the power supply is abnormal, so that the melted water after the refrigerator is powered off is stored through the water receiving box.
Optionally, the detection module is specifically configured to:
detecting a strong power end of the refrigerator and a feedback end of the power supply module respectively;
and when the detection voltage of the strong power end is lower than a first preset threshold value and the detection voltage of the feedback end is lower than a second preset threshold value, judging that the power supply is powered down or works abnormally.
Optionally, the driving module is further configured to:
when the power supply is detected to be abnormal, the buzzer is driven to alarm, and meanwhile, the alarm information of the power supply abnormality is sent to a user through the driving wireless communication module.
Optionally, the driving module is further configured to:
and driving the linkage module to withdraw the water receiving box in the storage state according to the reset control signal.
Optionally, the driving module includes:
the power supply unit is used for providing a standby working power supply for the control unit and the driving unit;
the driving unit is used for driving the linkage module to push out or retract the water receiving box according to a control signal of the control unit;
the control unit is used for detecting whether a driving signal of the detection unit exists or not based on a power supply provided by a power supply module of the refrigerator under a normal state, and controlling the driving unit linkage module to push out the water receiving box based on a working power supply provided by the power supply unit after the driving signal is detected; and the linkage module is used for detecting that the reset control signal drives the linkage module to withdraw the water receiving box in the storage state.
Optionally, the power supply unit includes:
the power supply is connected with the grid electrode of the first field effect transistor through the first resistor and is directly connected with the source electrode of the first field effect transistor; the drain electrode of the first field effect transistor provides a working power supply for the control unit through a voltage reduction chip, and is grounded through a first transient voltage suppressor, and the grid electrode of the first field effect transistor is connected with the first control end of the control unit through a second resistor and is grounded through a second transient voltage suppressor;
the power supply is connected with the grid electrode of the second field effect transistor through a third resistor and is directly connected with the source electrode of the second field effect transistor; the drain electrode of the second field effect transistor provides a working power supply for the driving unit, the driving unit and the capacitor are grounded respectively through a third transient voltage suppressor, and the grid electrode of the second field effect transistor is connected with the second control end of the control unit through a fourth resistor and grounded through a fourth transient voltage suppressor.
Optionally, the driving unit includes:
the base electrode of the first triode is connected with the third control end of the control unit, the emitter is grounded, the collector electrode of the first triode is connected with the output end of the power supply unit through a first relay, and the first relay controls the forward output; the base electrode of the second triode is connected with the fourth control end of the control unit, the emitter is grounded, the collector electrode of the second triode is connected with the output end of the power supply unit through a second relay, and the second relay controls reverse output; the base electrode of the third triode is connected with the fifth control end of the control unit, the emitter is grounded, and the collector electrode of the third triode is connected with the base electrode of the fourth triode through a resistor; and a resistor is connected between an emitter and a base of the fourth triode, the emitter is connected with the output end of the power supply unit, the collector is an enabling output end and is grounded through the first backward diode, and the second backward diode is connected between the emitter and the collector.
Optionally, the linkage module includes:
the motor is positioned in a press cabin of the refrigerator and is connected with a connecting rod below the motor through an opening at the bottom of the refrigerator;
the sliding rail is positioned on the outer wall of the refrigerator, is connected with the water receiving box at the lower part, and is used for supporting the water receiving box to move up and down at the bottom of the refrigerator under the driving of the motor;
the connecting rod is positioned at the bottom of the refrigerator, is connected with the motor and the water receiving box and is used for controlling the water receiving box to be opened or retracted under the driving of the motor;
the water receiving box is arranged at the bottom of the refrigerator and on the outer wall of the refrigerator, is connected with the slide rail and the connecting rod and is used for receiving water.
Optionally, the water receiving box comprises a bottom wall and four side walls connected with the bottom wall; wherein, two adjacent side walls are connected through the soft material.
According to an aspect of the present invention, a control method of a refrigerator includes:
detecting whether the power supply is abnormal in real time in the working process of the refrigerator;
when detecting that the power takes place unusually, drive linkage module will be located the water receiving box of refrigerator bottom is released to through the water receiving box will the water that melts after the refrigerator outage is accomodate.
Optionally, the detecting whether the power supply is abnormal in real time specifically includes:
detecting a strong power end of the refrigerator and a feedback end of the power supply module respectively;
and when the detection voltage of the strong power end is lower than a first preset threshold value and the detection voltage of the feedback end is lower than a second preset threshold value, judging that the power supply is powered down or works abnormally.
Optionally, the method further includes:
when the power supply is detected to be abnormal, the buzzer is driven to alarm, and meanwhile, the alarm information of the power supply abnormality is sent to a user through the driving wireless communication module.
Optionally, the method further includes:
and driving the linkage module to withdraw the water receiving box in the storage state according to the reset control signal.
Optionally, the drive linkage module will be located the water receiving box of refrigerator bottom is released, specifically includes:
under a normal state, detecting whether a driving signal exists or not based on a power supply provided by a power supply module of the refrigerator;
when the driving signal is detected, controlling a driving linkage module to push out the water receiving box based on a working power supply provided by a standby working power supply;
when a reset control signal is detected, the linkage module is driven to withdraw the water receiving box.
The invention has the following beneficial effects:
according to the refrigerator control device and method provided by the embodiment of the invention, the water receiving box is arranged at the bottom of the refrigerator, so that once the power failure or abnormal work of the refrigerator is detected, the linkage module is automatically driven to push out the water receiving box at the bottom of the refrigerator, the property loss of a user caused by melting of ice or frost into water due to the power failure of the refrigerator is effectively avoided, and the personal and property safety of the user is ensured.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a refrigerator control apparatus according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a detection module according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of a driving module according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a linkage module disposed in a refrigerator according to an embodiment of the present invention;
FIG. 5 is a schematic view of a water receiving box according to an embodiment of the present disclosure;
fig. 6 is a flowchart of a refrigerator control method according to an embodiment of the present invention.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 embodiment of the invention provides a refrigerator control device, as shown in fig. 1, the refrigerator control device specifically comprises a detection module 11, a linkage module 12 and a driving module 13: wherein,
the detection module 11 is used for detecting whether the power supply is abnormal in real time in the working process of the refrigerator;
preferably, the detection module 11 is specifically configured to: detecting a strong power end of the refrigerator and a feedback end of the power supply module respectively;
and when the detection voltage of the strong power end is lower than a first preset threshold and the detection voltage of the feedback end is lower than a second preset threshold, judging that the power supply is powered off or works abnormally, and otherwise, judging that the power supply works normally.
The strong current terminal is a voltage access terminal (for example, 220V) of the refrigerator, and the power module is a power module for providing operating voltage for each load in the refrigerator, and is a core output terminal of the entire circuit control system. The detection module 11 determines that the power supply of the refrigerator is abnormal only when the voltage of the strong current terminal is abnormal and the voltage provided by the power supply module is abnormal at the same time, and determines that the power supply works normally when any one of the determination conditions is not satisfied.
And the linkage module 12 is used for controlling the water receiving box at the bottom of the refrigerator to be pushed out.
The linkage module 12 is a mechanical structure for controlling the state change of the water receiving box, and generally includes a motor, a slide rail, a connecting rod structure, the water receiving box, and the like. The connecting rod structure and the sliding rail can be controlled by the motor to push out the water receiving box, so that the water receiving box is in a storage state. The abnormal control signal is triggered by the driving module 13 according to the detection result of the detecting module 11.
Preferably, when the motor in the linkage module 12 can reversely control the connecting rod structure and the sliding rail to retract the water receiving box in the storage state. Therefore, the change of the state of the whole water receiving box is completed by the linkage module 12 according to the control signal without manual operation and intervention.
And the driving module 13 is used for driving the linkage module 12 to push out the water receiving box positioned at the bottom of the refrigerator according to the abnormal control signal of the detection module 11 when the detection module 11 detects that the power supply is abnormal, so as to store melted water after the refrigerator is powered off through the water receiving box.
Preferably, the driving module 13 is further configured to drive the linkage module 12 to retract the water receiving box in the storage state when the reset control signal is detected. The reset control signal is triggered by a user, and when the user determines that the water treatment in the water receiving box is finished, the reset control signal is sent through a reset key. The driving unit controls the linkage module 12 to reversely rotate according to the reset control signal so as to withdraw the water receiving box.
Specifically, in an embodiment of the present invention, the driving module 13 includes a power supply unit, a control unit and a driving unit; wherein,
the power supply unit is used for providing a standby working power supply for the control unit and the driving unit;
the driving unit is used for driving the linkage module to push out or withdraw the water receiving box according to a control signal of the control unit;
the control unit is used for detecting whether a driving signal of the detection unit exists or not based on a power supply provided by a power supply module of the refrigerator under a normal state, and controlling the driving unit linkage module to push out the water receiving box based on a working power supply provided by the power supply unit after the driving signal is detected; and the linkage module is used for detecting a reset control signal to drive the water receiving box in the storage state to be retracted.
It can be known that, the control unit in the present invention, when the refrigerator is in a normal state, detects the abnormal signal of the detection module 11 based on the power provided by the power module of the refrigerator itself; when the abnormal signal is detected, the power supply unit is controlled to provide a standby power supply for the whole driving module 13; under the standby power supply, the control unit can control the output of the driving unit to control the linkage module 12 to push out or withdraw the water receiving box.
Preferably, in an embodiment of the present invention, the driving module 13 is further configured to drive the buzzer to alarm when the detecting module 11 detects that the power supply is abnormal, and send the abnormal alarm information to the user by driving the wireless communication module.
Wherein, from detecting the moment of cutting off the power supply, MCU can control bee calling organ and send the chimes of doom, only when the user finishes the water clearance, presses the button that resets, just terminates the warning. The wireless communication module can send the abnormal alarm information to a user through a short message or a mail, so that the user can obtain the refrigerator alarm information in time, and property loss is avoided.
Based on the above, the refrigerator control device provided by the embodiment of the invention has the advantages that the water receiving box is arranged at the bottom of the refrigerator, and once the power failure or abnormal work of the refrigerator is detected, the linkage module is automatically driven to push out the water receiving box at the bottom of the refrigerator, so that the property loss of a user caused by the fact that ice or frost can be melted into water due to the power failure of the refrigerator is effectively avoided, and the personal and property safety of the user is ensured.
The technical contents of the present invention will be described in detail below with reference to the accompanying drawings and a specific embodiment.
As shown in fig. 2, a circuit diagram of the detection module 11 in the embodiment of the present invention is shown. The power module is a power module of a general refrigerator except the detection module 11 and the driving module. The output of the power supply module is 12V voltage, which supplies power to each load of the refrigerator and is also the core output end of the whole circuit control system. When the 12V voltage disappears (i.e. the strong power end is powered down or the power circuit works abnormally), all loads of the refrigerator cannot work. At this time, the operation of the refrigeration system is also stopped, causing ice and frost in the refrigerator to melt into water.
Aiming at the problems, the detection module 11 is introduced in the invention, and the feedback of the power supply module and the direct current strong current power supply are simultaneously detected. The detection module 11 comprises an MCU1 and a voltage dividing resistor; the divided voltage is connected with a strong power end, and the divided voltage is output to the MCU 1; the MCU1 is connected with the feedback end of the power module at the same time, and determines whether to output power supply abnormal control signals according to the voltage of the feedback end and the voltage of the strong power end after voltage division.
Specifically, at the strong electric end, the input voltage (220V) is rectified, and then a voltage of about 310V is output to the electrolytic capacitor E51 for filtering. According to the invention, at the output end of E51, a feedback voltage is output to the MCU1 through resistor voltage division, namely strong current end sampling detection in FIG. 2 is carried out, and the sampling value is marked as V1;
on the one hand, at the output end (namely 12V) of the power supply module, a strong-current end switching power supply is adjusted according to 12V fluctuation through an optocoupler silicon controlled rectifier IC17(PC817A) to realize 12V voltage stabilization; on the other hand, the 12V output via the IC17 outputs a corresponding feedback signal to the MCU1, and the MCU1 samples the feedback signal, where the sampled value is denoted as V2.
When the MCU1 judges that the V1 is always in a descending state and the V1 is lower than the normal value by 25 percent; meanwhile, the V2 is in a descending state, and when the V2 is lower than the normal value by 25%, the power supply is considered to be powered down or work abnormally, and the MCU1 controls the driving module 13 to work to drive the water receiving box to be opened.
As shown in fig. 3, a circuit diagram of the driving module 13 in the embodiment of the present invention is shown. Specifically, the driving module 13 includes a power supply unit, a control unit and a driving unit; wherein,
the control unit adopts a control chip MCU2, and when the control unit normally works, a 5V power supply of the switching power supply system detects whether the detection module 11 has an abnormal signal. The 5V power supply is obtained by the output end (namely 12V) of the power supply module through a voltage conversion circuit; the voltage conversion circuit is well known to those skilled in the art and will not be described here.
The power supply unit comprises a 14V power supply and a control path formed by two field effect transistor circuits; one control path is used for providing the required working power supply 5V for the control unit MCU, and the other control path is used for providing the required working power supply for the drive unit. In particular, the amount of the solvent to be used,
the 14V power supply is connected with the grid electrode of the field effect transistor M1 through a resistor R1, and meanwhile, the 14V power supply is directly connected with the source electrode of the field effect transistor M1; the drain electrode of the field effect transistor M1 provides working power supply for the control unit through the voltage reduction chip 7850, and is grounded through the transient voltage suppressor TVS1, and the gate electrode of the field effect transistor M1 is connected with the first control end P1 of the control unit through the resistor R2, and is grounded through the transient voltage suppressor TVS 2;
the 14V power supply is connected with the grid electrode of the field effect transistor M2 through a resistor R3, and meanwhile, the 14V power supply is directly connected with the source electrode of the field effect transistor M2; the drain of the fet M2 provides operating power to the driving unit, and is grounded via the transient voltage suppressor TVS3 and the capacitor E10, respectively, and the gate is connected to the second control terminal P2 of the control unit via the resistor R4, and is grounded via the transient voltage suppressor TVS 4.
A drive unit comprising: a base electrode of the triode N1 is connected with a third control end M + of the control unit, an emitter electrode of the triode N1 is grounded, a collector electrode of the triode N1 is connected with an output end of the power supply unit through a relay K1, the relay K1 is connected with the diode D1 in parallel, and the relay K1 controls forward output;
a base electrode of the triode N1 is connected with a fourth control end M-of the control unit, an emitter electrode of the triode N1 is grounded, a collector electrode of the triode N1 is connected with the output end of the power supply unit through a relay K2, and the relay K2 is connected with a diode D2 in parallel;
a base electrode of the triode N3 is connected with the fifth control end M-EN of the control unit, an emitter electrode of the triode N3 is grounded, and a collector electrode of the triode N3 is connected with the base electrode of the triode P4 through a resistor R5; the resistor R6 is connected between the emitter and the base of the triode P4, the emitter is connected with the output end of the power supply unit, the collector is an enabling output end and is grounded through the first reverse diode D3, and the reverse diode D4 is connected between the emitter and the collector.
In the normal working process of the refrigerator, the MCU detects whether an abnormal signal exists at the control end of the MCU water storage box or not through a 5V circuit provided by the connection switching power supply; at this time, the MCU controls M1 and M2 to be cut off. When abnormal power failure and working occur, after the MCU detects a power supply abnormal signal of the detection module 11, the P1 and the P2 are enabled, at the moment, the 14V battery supplies power to the driving unit and controls the driving unit to open the water receiving box, and in order to prevent the MCU from power failure caused by the power failure, the P2 enables the 14V battery to pass through the 7805 voltage reduction chip to continuously provide a 5V power supply for the MCU, so that the MCU can normally control the motor; the MCU controls the M + to conduct the relay K1 and is matched with the M-EN at the same time, so that the forward rotation of the water receiving box motor can be realized, and the water receiving box is opened; and after a reset control signal is detected, the reverse rotation of the water receiving box motor can be realized by controlling the M-and the M-EN, and the opened water receiving box is withdrawn. After the reset is completed, the control unit detects the power supply normal signal sent by the detection module 11, and then controls the P1 and the P2 to be disconnected, so as to isolate the 14V power supply, and meanwhile, the switching power supply continues to provide the 5V voltage required by the operation.
As shown in fig. 4, the linkage module 12 in the embodiment of the present invention includes a motor 121, a slide rail 122, a connecting rod 123, and a water receiving box 124; wherein,
the motor 121, located in the press compartment of the refrigerator, is connected to the lower link 123 through an opening in the bottom of the refrigerator, for driving the entire module to run.
And the sliding rail 122 is positioned on the outer wall of the refrigerator, is connected with the water receiving box at the lower part, and is used for supporting the water receiving box to move up and down at the bottom of the refrigerator under the driving of the motor 121.
The connecting rod 123 is positioned at the bottom of the refrigerator, is connected with the motor 121 and the water receiving box 124 at the lower part, and is used for controlling the water receiving box 124 to be opened or retracted under the driving of the motor 121; when the motor 121 acts to push the connecting rod 123, the connecting rod 123 opens the water receiving box 124 at the lower part to receive water; when the motor 121 is pulled back, the connecting rod 123 is pulled, and the water receiving box 124 is retracted.
And the water receiving box 124 is an uncovered cuboid and is reversely buckled at the bottom of the refrigerator and the outer wall of the refrigerator, and is connected with the sliding rail 122 and the connecting rod 123 for receiving water. As shown in fig. 5, the 5 surface groups of the water receiving box are made of plastic or metal materials, and of the four vertical surfaces, two adjacent surfaces are connected through a soft material 1240, and are made of a soft waterproof material, so that when the rigid connection is unfolded, the gap in the middle can be filled, and the rigid connection can be supported to extend outwards. Therefore, when the refrigerator is opened to receive water, the refrigerator can be inclined to the outside of the refrigerator at a certain angle, so that the refrigerator is convenient to receive water seeped from the outer wall of the refrigerator. When in a normal state, the water receiving box is fixed at the bottom of the refrigerator through the sliding rails 122 at two sides and the buckle (or the magnetic device) at the bottom of the refrigerator. When the water receiving box needs to be restored after being opened, the buckle at the bottom of the refrigerator can be used for fixing the water receiving box to the bottom of the refrigerator again.
When the power supply is judged to be abnormal, the driving module 13 drives the water receiving box motor 121, the motor 121 pushes the connecting rod 123 along the direction towards the outside of the refrigerator, the connecting rod drives the sliding rail 122 to move, the water receiving box 124 is put down and unfolded, and water can be received at the moment; after the reset control signal is detected, the driving module 13 drives the water receiving box motor 121 to rotate reversely, and the water receiving box 124 is pulled back to the original position again through the matching of the connecting rod 123 and the sliding rail 122 until the problem occurs again.
Through the control of the circuit and the device, water about to leak out of the refrigerator can be stored when the refrigerator is powered off or the power supply is abnormal, and meanwhile property and even safety loss possibly brought by the water are avoided, and the water leakage is prevented.
An embodiment of the present invention further provides a control method of a refrigerator, as shown in fig. 6, for use in the control device, where the method includes:
601, detecting whether the power supply is abnormal in real time in the working process of the refrigerator;
wherein, whether detecting the power supply and taking place unusually specifically includes:
detecting a strong power end of the refrigerator and a feedback end of the power supply module respectively;
when the detection voltage of the strong power end is lower than a first preset threshold value and the detection voltage of the feedback end is lower than a second preset threshold value, judging that the power supply is powered off or works abnormally; otherwise, judging that the power supply works normally.
Step 602, when detecting that the power supply is abnormal, driving the linkage module to push out the water receiving box at the bottom of the refrigerator, so as to store the melted water after the refrigerator is powered off through the water receiving box.
Wherein, the method also comprises: when detecting that the power supply is abnormal, driving the buzzer to alarm, and simultaneously sending alarm information of the power supply abnormality to a user by driving the wireless communication module.
Wherein, the method also comprises: and when the reset control signal is detected, the linkage module is driven to withdraw the water receiving box in the storage state according to the reset control signal.
Wherein, will be located the water receiving box release of refrigerator bottom at drive linkage module, specifically include: under a normal state, detecting whether a driving signal of the detection unit exists or not based on a power supply provided by a power supply module of the refrigerator; when the driving signal is detected, the working power supply provided by the standby power supply controls the driving linkage module to push out or withdraw the water receiving box.
According to the refrigerator control method provided by the invention, the water receiving box is arranged at the bottom of the refrigerator, and once the power failure or abnormal work of the refrigerator is detected, the linkage module is automatically driven to push out the water receiving box at the bottom of the refrigerator, so that the property loss of a user caused by water melted by ice or frost due to power failure of the refrigerator is effectively avoided, and the personal and property safety of the user is ensured; meanwhile, the invention can also actively inform the user, so that the user can acquire alarm information at the first time, thereby further ensuring the use safety of the refrigerator and the personal and property safety of the user.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above.
Although the present application has been described with reference to embodiments, those skilled in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (14)
1. A refrigerator control apparatus, comprising:
the detection module is used for detecting whether the power supply is abnormal in real time in the working process of the refrigerator;
the linkage module is used for controlling the water receiving box at the bottom of the refrigerator to be pushed out;
and the driving module is used for driving the linkage module to push out the water receiving box positioned at the bottom of the refrigerator according to the abnormal control signal of the detection module when the detection module detects that the power supply is abnormal, so that the melted water after the refrigerator is powered off is stored through the water receiving box.
2. The control device of claim 1, wherein the detection module is specifically configured to:
detecting a strong power end of the refrigerator and a feedback end of the power supply module respectively;
and when the detection voltage of the strong power end is lower than a first preset threshold value and the detection voltage of the feedback end is lower than a second preset threshold value, judging that the power supply is powered down or works abnormally.
3. The control device of claim 1, wherein the drive module is further configured to:
when the power supply is detected to be abnormal, the buzzer is driven to alarm, and meanwhile, the alarm information of the power supply abnormality is sent to a user through the driving wireless communication module.
4. The control device of claim 1, wherein the drive module is further configured to:
and driving the linkage module to withdraw the water receiving box in the storage state according to the reset control signal.
5. The control device of claim 4, wherein the drive module comprises:
the power supply unit is used for providing a standby working power supply for the control unit and the driving unit;
the driving unit is used for driving the linkage module to push out or retract the water receiving box according to a control signal of the control unit;
the control unit is used for detecting whether a driving signal of the detection unit exists or not based on a power supply provided by a power supply module of the refrigerator under a normal state, and controlling the driving unit linkage module to push out the water receiving box based on a working power supply provided by the power supply unit after the driving signal is detected; and the linkage module is used for detecting that the reset control signal drives the linkage module to withdraw the water receiving box in the storage state.
6. The control device according to claim 5, wherein the power supply unit includes:
the power supply is connected with the grid electrode of the first field effect transistor through the first resistor and is directly connected with the source electrode of the first field effect transistor; the drain electrode of the first field effect transistor provides a working power supply for the control unit through a voltage reduction chip, and is grounded through a first transient voltage suppressor, and the grid electrode of the first field effect transistor is connected with the first control end of the control unit through a second resistor and is grounded through a second transient voltage suppressor;
the power supply is connected with the grid electrode of the second field effect transistor through a third resistor and is directly connected with the source electrode of the second field effect transistor; the drain electrode of the second field effect transistor provides a working power supply for the driving unit, the driving unit and the capacitor are grounded respectively through a third transient voltage suppressor, and the grid electrode of the second field effect transistor is connected with the second control end of the control unit through a fourth resistor and grounded through a fourth transient voltage suppressor.
7. The control device according to claim 5, wherein the drive unit includes:
the base electrode of the first triode is connected with the third control end of the control unit, the emitter is grounded, the collector electrode of the first triode is connected with the output end of the power supply unit through a first relay, and the first relay controls the forward output; the base electrode of the second triode is connected with the fourth control end of the control unit, the emitter is grounded, the collector electrode of the second triode is connected with the output end of the power supply unit through a second relay, and the second relay controls reverse output; the base electrode of the third triode is connected with the fifth control end of the control unit, the emitter is grounded, and the collector electrode of the third triode is connected with the base electrode of the fourth triode through a resistor; and a resistor is connected between an emitter and a base of the fourth triode, the emitter is connected with the output end of the power supply unit, the collector is an enabling output end and is grounded through the first backward diode, and the second backward diode is connected between the emitter and the collector.
8. The control device of claim 1, wherein the linkage module comprises:
the motor is positioned in a press cabin of the refrigerator and is connected with a connecting rod below the motor through an opening at the bottom of the refrigerator;
the sliding rail is positioned on the outer wall of the refrigerator, is connected with the water receiving box at the lower part, and is used for supporting the water receiving box to move up and down at the bottom of the refrigerator under the driving of the motor;
the connecting rod is positioned at the bottom of the refrigerator, is connected with the motor and the water receiving box and is used for controlling the water receiving box to be opened or retracted under the driving of the motor;
the water receiving box is arranged at the bottom of the refrigerator and on the outer wall of the refrigerator, is connected with the slide rail and the connecting rod and is used for receiving water.
9. The control device of claim 8, wherein the drip tray includes a bottom wall and four side walls connected to the bottom wall; wherein, two adjacent side walls are connected through the soft material.
10. A control method of a refrigerator, comprising:
detecting whether the power supply is abnormal in real time in the working process of the refrigerator;
when detecting that the power takes place unusually, drive linkage module will be located the water receiving box of refrigerator bottom is released to through the water receiving box will the water that melts after the refrigerator outage is accomodate.
11. The control method according to claim 10, wherein the detecting whether the power supply is abnormal in real time specifically includes:
detecting a strong power end of the refrigerator and a feedback end of the power supply module respectively;
and when the detection voltage of the strong power end is lower than a first preset threshold value and the detection voltage of the feedback end is lower than a second preset threshold value, judging that the power supply is powered down or works abnormally.
12. The method of claim 10, wherein the method further comprises:
when the power supply is detected to be abnormal, the buzzer is driven to alarm, and meanwhile, the alarm information of the power supply abnormality is sent to a user through the driving wireless communication module.
13. The control method of claim 10, wherein the method further comprises:
and driving the linkage module to withdraw the water receiving box in the storage state according to the reset control signal.
14. The control method according to claim 13, wherein the driving linkage module pushes out a water receiving box located at the bottom of the refrigerator, and specifically comprises:
under a normal state, detecting whether a driving signal exists or not based on a power supply provided by a power supply module of the refrigerator;
when the driving signal is detected, controlling a driving linkage module to push out the water receiving box based on a working power supply provided by a standby working power supply;
when a reset control signal is detected, the linkage module is driven to withdraw the water receiving box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710159447.7A CN106931716B (en) | 2017-03-17 | 2017-03-17 | A kind of control device of refrigerator and its control method |
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| CN201710159447.7A CN106931716B (en) | 2017-03-17 | 2017-03-17 | A kind of control device of refrigerator and its control method |
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Cited By (1)
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| CN108039875A (en) * | 2017-11-29 | 2018-05-15 | 青岛海尔科技有限公司 | A kind of control circuit of refrigerator ozone generator |
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| EP1475592A2 (en) * | 2003-05-09 | 2004-11-10 | Samsung Electronics Co., Ltd. | Refrigerator |
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| DE102011078324A1 (en) * | 2011-06-29 | 2013-01-03 | BSH Bosch und Siemens Hausgeräte GmbH | Cooling device, particularly household cooling device, such as refrigerator or freezer, has control unit, which is arranged to take decision on switching of auxiliary device based on temperature of storage chamber |
| JP2014025627A (en) * | 2012-07-26 | 2014-02-06 | Mitsubishi Electric Corp | Show case |
| CN105074369A (en) * | 2013-11-05 | 2015-11-18 | Lg电子株式会社 | Refrigerator |
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| EP1475592A2 (en) * | 2003-05-09 | 2004-11-10 | Samsung Electronics Co., Ltd. | Refrigerator |
| CN2833460Y (en) * | 2005-04-02 | 2006-11-01 | 青岛市家用电器研究所 | Water-containing plate with alarming function |
| DE102011078324A1 (en) * | 2011-06-29 | 2013-01-03 | BSH Bosch und Siemens Hausgeräte GmbH | Cooling device, particularly household cooling device, such as refrigerator or freezer, has control unit, which is arranged to take decision on switching of auxiliary device based on temperature of storage chamber |
| JP2014025627A (en) * | 2012-07-26 | 2014-02-06 | Mitsubishi Electric Corp | Show case |
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| CN106931716B (en) | 2019-09-06 |
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