CN115200289B

CN115200289B - Refrigerator and electromagnetic valve control method

Info

Publication number: CN115200289B
Application number: CN202210713703.3A
Authority: CN
Inventors: 侯同尧; 李秀军; 赵强; 张善房
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2024-07-30
Anticipated expiration: 2042-06-22
Also published as: CN115200289A

Abstract

The embodiment of the application provides a refrigerator and an electromagnetic valve control method, wherein the temperature of a refrigerating room and the temperature of a freezing room detected by a temperature detection module are obtained; if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, a refrigerating instruction is generated, the refrigerating instruction is sent to the electromagnetic valve control module, and if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, a refrigerating instruction is generated, and the refrigerating instruction is sent to the electromagnetic valve control module. The application provides a refrigerator and a solenoid valve control method, and provides a power supply control circuit of a solenoid valve under the condition that solenoid valve devices are not replaced, and under the condition that the power supply current of the solenoid valve is direct current, positive and negative pulses are generated by controlling pulse signals of the power supply control circuit, so that the refrigerating process of a refrigerating compartment and a freezing compartment is realized, the electric energy loss is reduced, and the power supply efficiency is improved.

Description

Refrigerator and electromagnetic valve control method

Technical Field

The embodiment of the application relates to the technical field of refrigerators. And more particularly, to a refrigerator and a solenoid valve control method.

Background

With the continuous development of the refrigeration technology of the refrigerator, the refrigerator is also developed into a multi-temperature multi-control refrigerator from single control. The multi-temperature multi-control refrigerator is provided with electromagnetic valves for controlling the flow direction of the refrigerant, and the refrigeration temperatures of the refrigerating chamber and the freezing chamber are respectively controlled to meet the storage requirements of different foods.

In the prior art, a pulse electromagnetic valve is generally adopted to control an electromagnetic valve in the flow direction of a refrigerant so as to realize multi-temperature refrigeration of a refrigerator. After passing through the filter, the refrigerant enters the pulse electromagnetic valve of the tee joint. The controller of the refrigerator controls the conduction process of the opening of the electromagnetic valve 1, the opening of the electromagnetic valve 2 and the opening of the electromagnetic valve 3 by controlling the voltages loaded on the control end A and the control end B of the electromagnetic valve. Specifically, when the refrigerant enters from the opening of the electromagnetic valve 1 and exits from the opening of the electromagnetic valve 2, the refrigerant flows into the refrigeration evaporator to realize the refrigeration of the refrigeration compartment, and when the refrigerant enters from the opening of the electromagnetic valve 1 and exits from the opening of the electromagnetic valve 3, the refrigerant flows into the refrigeration evaporator to realize the refrigeration of the refrigeration compartment.

At present, in order to achieve the aim of saving energy, a solar power supply or a storage battery is adopted to supply power to the refrigerator. In order to realize the control process of the pulse electromagnetic valve, the direct current obtained by solar energy or a storage battery is generally converted into alternating current to supply power for the refrigerator. However, in the process of converting direct current into alternating current in an inversion manner, there is a problem of power loss, which affects power supply efficiency.

Disclosure of Invention

The exemplary embodiment of the application provides a refrigerator and a solenoid valve control method, wherein under the condition that the power supply current of a solenoid valve is direct current, positive and negative pulses are generated by controlling pulse signals of a power supply control circuit, so that the electric energy loss is reduced and the power supply efficiency is improved in the refrigerating process of a refrigerating compartment and a freezing compartment.

In a first aspect, an embodiment of the present application provides a refrigerator, including:

the refrigerator comprises a box body, wherein a refrigerating compartment and a freezing compartment are arranged in the box body;

The refrigeration system is arranged in the box body and comprises a compressor, an electromagnetic valve, a refrigeration evaporator, a freezing evaporator, a filter and a condenser pipe; the electromagnetic valve comprises an inlet valve, a first outlet valve and a second outlet valve, the inlet valve of the electromagnetic valve is connected with the outlet of the filter, the first outlet valve of the electromagnetic valve is connected with the inlet of the refrigeration evaporator, the second outlet valve of the electromagnetic valve is connected with the inlet of the freezing evaporator, and the electromagnetic valve further comprises a first level end and a second level end;

the temperature detection module is used for detecting the temperature of the refrigerating chamber and the temperature of the freezing chamber;

The control module comprises a controller and an electromagnetic valve control module, the controller is respectively connected with the electromagnetic valve control module and the temperature detection module, and the electromagnetic valve control module is respectively connected with a first level end and a second level end of the electromagnetic valve;

the controller is configured to:

acquiring the temperature of the refrigerating compartment detected by the temperature detection module and the temperature of the freezing compartment;

If the temperature of the refrigerating compartment is larger than or equal to the preset refrigerating temperature, generating a refrigerating instruction, and sending the refrigerating instruction to the electromagnetic valve control module, so that the electromagnetic valve control module outputs a negative level to the first level end and outputs a positive level to the second level end, and the first outlet valve is communicated with the refrigerating evaporator;

And if the temperature of the freezing compartment is larger than or equal to the preset freezing temperature, generating a freezing and refrigerating instruction, sending the freezing and refrigerating instruction to the electromagnetic valve control module, and outputting a negative level to the second level end and a positive level to the first level end by the electromagnetic valve control module so that the second outlet valve is communicated with the freezing evaporator.

In one possible design, the temperature detection module is also used to detect the refrigeration evaporator temperature as well as the freezing evaporator temperature.

In one possible design, the refrigeration instruction includes a refrigeration pulse signal;

the controller is configured to, after performing the acquiring the cold room temperature detected by the temperature detection module and the freezing room temperature, further:

acquiring the initial temperature of the refrigeration evaporator detected by the temperature detection module;

accordingly, after executing the generating a refrigeration instruction and sending the refrigeration instruction to the solenoid valve control module, the solenoid valve control module is further configured to:

Acquiring the refrigerating temperature of the refrigerating evaporator detected by the temperature detection module, and determining a temperature difference value of the refrigerating evaporator according to the initial temperature of the refrigerating evaporator and the refrigerating temperature of the refrigerating evaporator;

If the temperature difference value of the refrigeration evaporator is smaller than the preset refrigeration difference value, determining a new refrigeration pulse signal according to a preset conduction time interval and a prestored refrigeration pulse signal, wherein the prestored refrigeration pulse signal is a refrigeration pulse signal contained in a last refrigeration instruction;

and generating a new refrigeration instruction according to the new refrigeration pulse signal, and sending the new refrigeration instruction to the electromagnetic valve control module.

In one possible design, the pre-stored refrigeration pulse signal includes at least one pre-stored on time interval;

The controller is configured to, when executing the determination of a new refrigeration pulse signal from a preset conduction time interval and a pre-stored refrigeration pulse signal, specifically:

Generating a new conduction time interval according to the sum of the pre-stored conduction time interval and the preset conduction time interval, and generating a new refrigeration pulse signal according to the number of the pre-stored conduction time intervals contained in the pre-stored refrigeration pulse signal and the new conduction time interval;

Or alternatively

Generating a new refrigerating pulse signal according to the number of the pre-stored conducting time intervals and the sum of the preset number and the new conducting time intervals contained in the pre-stored refrigerating pulse signal, and generating the new refrigerating pulse signal according to the number of the new conducting time intervals and the pre-stored conducting time intervals;

Or generating a new conduction time interval according to the sum of the pre-stored conduction time intervals and the preset conduction time intervals, generating a new conduction time interval according to the sum of the number of the pre-stored conduction time intervals and the preset number contained in the pre-stored refrigeration pulse signal, and generating a new refrigeration pulse signal according to the number of the new conduction time intervals and the new conduction time intervals.

In one possible design, the freezing and refrigerating command includes a freezing pulse signal;

acquiring the initial temperature of the freezing evaporator detected by the temperature detection module;

Accordingly, after executing the generating refrigeration command and sending the refrigeration command to the solenoid valve control module, the solenoid valve control module is further configured to:

acquiring the refrigeration temperature of the freezing evaporator detected by the temperature detection module, and determining a temperature difference value of the freezing evaporator according to the initial temperature of the freezing evaporator and the refrigeration temperature of the freezing evaporator;

If the temperature difference of the freezing evaporator is smaller than the preset freezing difference, determining a new freezing pulse signal according to a preset conduction time interval and a pre-stored freezing pulse signal, wherein the pre-stored freezing pulse signal is a freezing pulse signal contained in a last freezing and refrigerating instruction;

In one possible design, the pre-stored frozen pulse signal includes at least one pre-stored on time interval;

The controller is configured to, when executing the determination of a new freeze pulse signal from a preset on-time interval and a pre-stored freeze pulse signal, specifically:

Generating a new conduction time interval according to the sum of the pre-stored conduction time interval and the preset conduction time interval, and generating a new freezing pulse signal according to the number of the pre-stored conduction time intervals contained in the pre-stored freezing pulse signal and the new conduction time interval;

Or alternatively

Generating a new freezing pulse signal according to the number of pre-stored conduction time intervals and the sum of the preset number of the pre-stored conduction time intervals contained in the pre-stored freezing pulse signal and the number of the new conduction time intervals, and generating the new freezing pulse signal according to the number of the new conduction time intervals and the pre-stored conduction time intervals;

Or generating a new conduction time interval according to the sum of the pre-stored conduction time intervals and the preset conduction time intervals, generating a new conduction time interval according to the sum of the number of the pre-stored conduction time intervals and the preset number contained in the pre-stored freezing pulse signal, and generating a new freezing pulse signal according to the number of the new conduction time intervals and the new conduction time intervals.

In one possible design, the controller is configured to, after executing the sending the refrigeration instruction to the solenoid valve control module, further:

After a preset time period, acquiring the refrigeration end temperature of the refrigeration evaporator detected by the temperature detection module;

If the refrigeration ending temperature of the refrigeration evaporator is higher than a first preset refrigeration temperature parameter, repeating the steps of generating a refrigeration instruction and sending the refrigeration instruction to the electromagnetic valve control module;

The controller is configured to, after executing the sending the refrigeration instruction to the solenoid valve control module, further:

And if the refrigeration finishing temperature of the refrigeration evaporator is higher than a first preset refrigeration temperature parameter, repeating the step of generating the refrigeration instruction and sending the refrigeration instruction to the electromagnetic valve control module.

In one possible design, the solenoid valve control module includes a refrigeration signal conversion module, a refrigeration switch module, and a refrigeration switch module;

The controller is configured to, when executing the sending the refrigeration instruction to the solenoid valve control module, specifically:

The refrigerating instruction is sent to a refrigerating signal conversion module, so that the refrigerating signal conversion module controls the refrigerating switch module to be turned on, outputs a negative level to the first level end and outputs a positive level to the second level end, and the first outlet valve is communicated with the refrigerating evaporator;

Accordingly, the controller is configured to, when executing the sending the refrigeration instruction to the solenoid valve control module, specifically:

And sending the freezing and refrigerating instruction to a freezing signal conversion module, so that the freezing signal conversion module controls the freezing switch module to be opened, outputs a negative level to the second level end and outputs a positive level to the first level end, and the second outlet valve is communicated with the freezing evaporator.

In one possible design, the refrigerating switch module comprises a first switch tube and a second switch tube, and the freezing switch module comprises a third switch tube and a fourth switch tube.

In a second aspect, the controller applied to the control module of the refrigerator, the refrigerator further comprises a refrigerator body, a refrigerating system and a temperature detection module, wherein a refrigerating compartment and a freezing compartment are arranged in the refrigerator body, the refrigerating system is arranged in the refrigerator body, the refrigerating system comprises a compressor, an electromagnetic valve, a refrigerating evaporator, a freezing evaporator, a filter and a condensing pipe, the electromagnetic valve comprises an inlet valve, a first outlet valve and a second outlet valve, the inlet valve of the electromagnetic valve is connected with the outlet of the filter, the first outlet valve of the electromagnetic valve is connected with the inlet of the refrigerating evaporator, the second outlet valve of the electromagnetic valve is connected with the inlet of the freezing evaporator, and the electromagnetic valve further comprises a first level end and a second level end; the temperature detection module is used for detecting the temperature of the refrigerating room and the temperature of the freezing room; the control module further comprises an electromagnetic valve control module, the controller is respectively connected with the electromagnetic valve control module and the temperature detection module, and the electromagnetic valve control module is respectively connected with a first level end and a second level end of the electromagnetic valve;

The method comprises the following steps:

The refrigerator and the electromagnetic valve control method provided by the embodiment of the application are characterized in that the temperature of the refrigerating room and the temperature of the freezing room detected by the temperature detection module are obtained; if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, a refrigerating instruction is generated, the refrigerating instruction is sent to the electromagnetic valve control module, and if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, a refrigerating instruction is generated, and the refrigerating instruction is sent to the electromagnetic valve control module. The application provides a refrigerator and a solenoid valve control method, and provides a power supply control circuit of a solenoid valve under the condition that solenoid valve devices are not replaced, and under the condition that the power supply current of the solenoid valve is direct current, positive and negative pulses are generated by controlling pulse signals of the power supply control circuit, so that the refrigerating process of a refrigerating compartment and a freezing compartment is realized, the electric energy loss is reduced, and the power supply efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the implementation of the related art, the drawings that are required for the embodiments or the related art description will be briefly described, and it is apparent that the drawings in the following description are some embodiments of the present application and that other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a three-way pulse solenoid valve according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a solenoid valve control method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a solenoid valve control circuit according to an embodiment of the present invention;

FIG. 5 is a second schematic diagram of a solenoid valve control circuit according to an embodiment of the present invention;

FIG. 6 is a second flow chart of a solenoid valve control method according to an embodiment of the present invention;

fig. 7 is a schematic flow chart III of a solenoid valve control method according to an embodiment of the present invention;

fig. 8 is a flow chart of a solenoid valve control method according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a solenoid valve control apparatus according to an embodiment of the present invention;

Fig. 10 is a schematic structural diagram of a controller according to an embodiment of the present invention.

Detailed Description

For the purposes of making the objects, embodiments and advantages of the present application more apparent, an exemplary embodiment of the present application will be described more fully hereinafter with reference to the accompanying drawings in which exemplary embodiments of the application are shown, it being understood that the exemplary embodiments described are merely some, but not all, of the examples of the application.

Based on the exemplary embodiments described herein, all other embodiments that may be obtained by one of ordinary skill in the art without making any inventive effort are within the scope of the appended claims. Furthermore, while the present disclosure has been described in terms of an exemplary embodiment or embodiments, it should be understood that each aspect of the disclosure can be practiced separately from the other aspects.

It should be noted that the brief description of the terminology in the present application is for the purpose of facilitating understanding of the embodiments described below only and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.

The terms "first," second, "" third and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated (Unless otherwise indicated). It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.

The term "module" as used in this disclosure refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the function associated with that element.

In the prior art, a pulse electromagnetic valve is generally used for controlling the flow direction of a refrigerant in a multi-temperature multi-control refrigerator. Exemplary, fig. 1 is a schematic structural diagram of a three-way pulse electromagnetic valve according to an embodiment of the present invention. As shown in fig. 1, a and B are respectively level control ends of electromagnetic valves, an opening of the electromagnetic valve 1 is an inlet end of the electromagnetic valve, an opening of the electromagnetic valve 2 is a refrigerating evaporator access port of the electromagnetic valve, and an opening of the electromagnetic valve 3 is a refrigerating evaporator access port of the electromagnetic valve. After passing through the filter, the refrigerant enters the pulse electromagnetic valve of the tee joint through the opening of the electromagnetic valve 1. The controller of the refrigerator controls the conduction process of the opening of the electromagnetic valve 1, the opening of the electromagnetic valve 2 and the opening of the electromagnetic valve 3 by controlling the voltages loaded on the control end A and the control end B of the electromagnetic valve. Specifically, when the refrigerant enters from the opening of the electromagnetic valve 1 and exits from the opening of the electromagnetic valve 2, the refrigerant flows into the refrigeration evaporator to realize the refrigeration of the refrigeration compartment, and when the refrigerant enters from the opening of the electromagnetic valve 1 and exits from the opening of the electromagnetic valve 3, the refrigerant flows into the refrigeration evaporator to realize the refrigeration of the refrigeration compartment. However, when the refrigerator is powered by a solar power supply or a storage battery, direct current obtained by the solar power supply or the storage battery needs to be converted into alternating current to power the refrigerator, and in the process of converting direct current into alternating current in an inversion mode, the problem of electric energy loss can occur, so that the power supply efficiency is affected.

In order to solve the electric energy loss in the process of inverting the direct current supply current of the electromagnetic valve into alternating current in the prior art, the application provides a refrigerator and an electromagnetic valve control method, and provides a power supply control circuit of the electromagnetic valve under the condition that an electromagnetic valve device is not replaced.

Fig. 2 is a schematic structural view of a refrigerator according to an embodiment of the present invention. The refrigerator is provided with a refrigerating compartment and a freezing compartment in a refrigerator body, as shown in fig. 2, and a refrigerating system is arranged in the refrigerator body, wherein the refrigerating system comprises a compressor 201, an electromagnetic valve 202, a refrigerating evaporator 203, a freezing evaporator 204, a filter 205 and a condensation pipe 206, the electromagnetic valve 202 comprises an inlet valve 2021, a first outlet valve 2022 and a second outlet valve 2023, the inlet valve 2021 of the electromagnetic valve is connected with the outlet of the filter 205, the first outlet valve 2022 of the electromagnetic valve is connected with the inlet of the refrigerating evaporator 203, the second outlet valve 2023 of the electromagnetic valve is connected with the inlet of the freezing evaporator 204, and the electromagnetic valve further comprises a first level end 2024 and a second level end 2025. The refrigerator further comprises a temperature detection module 207 for detecting the temperature of the refrigerating compartment and the temperature of the freezing compartment; the refrigerator further includes a control module 208, the control module 208 includes a controller 2081 and an electromagnetic valve control module 2082, the controller 2081 is connected to the electromagnetic valve control module 2082 and the temperature detection module 207, and the electromagnetic valve control module 2082 is connected to the first level end 2024 and the second level end 2025 of the electromagnetic valve.

The technical scheme of the application is described in detail below by specific examples. The following embodiments may be combined with each other, and concepts or processes may not be repeated in some embodiments for the same or similar purposes.

Fig. 3 is a schematic flow chart of a solenoid valve control method according to an embodiment of the present invention, and an execution body of the embodiment may be the controller in the embodiment shown in fig. 3. As shown in fig. 3, the method includes:

S301: and obtaining the temperature of the refrigerating room detected by the temperature detection module and the temperature of the freezing room.

In the embodiment of the invention, in the refrigerating cycle process of the refrigerator refrigerating system, an accumulator is also arranged between the refrigerating evaporator and the refrigerating evaporator group and the compressor and is used for storing liquid-state refrigerant. In the refrigerating system, a compressor converts a refrigerant into a high-temperature high-pressure liquid refrigerant, the liquid refrigerant is subjected to heat exchange through a condenser to be changed into a normal-temperature high-pressure liquid refrigerant, impurities are filtered out from the refrigerant in a filter, the conduction condition of an electromagnetic valve is controlled by controlling the level loaded at the control end of the electromagnetic valve, and when the electromagnetic valve is controlled to be conducted with a refrigerating evaporator, the refrigerant flows into the refrigerating evaporator to refrigerate a refrigerating compartment. When the control electromagnetic valve is communicated with the freezing evaporator, the refrigerant flows into the freezing evaporator to refrigerate the freezing compartment. The electromagnetic valve is in one-way conduction, and at the same time, only the electromagnetic valve can be controlled to be conducted with the refrigeration evaporator or only the electromagnetic valve can be controlled to be conducted with the refrigeration evaporator.

In an embodiment of the invention, the temperature detection module comprises a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is used for measuring the temperature of the refrigerating compartment, and the second temperature sensor is used for measuring the temperature of the freezing compartment. The temperature sensor is illustratively an infrared temperature sensor. During the cooling process of the refrigerator, the cooling effect of the refrigerator can be monitored by monitoring the temperature of the refrigerating compartment and the temperature of the freezing compartment.

S302: if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, a refrigerating instruction is generated, and the refrigerating instruction is sent to the electromagnetic valve control module, so that the electromagnetic valve control module outputs a negative level to the first level end and outputs a positive level to the second level end, and the first outlet valve is communicated with the refrigerating evaporator.

In the refrigerating process of the refrigerator, when new food is stored in the refrigerating chamber to cause the temperature of the refrigerating chamber to rise, in order to ensure the refrigerating and storing effect of the food, the refrigerating evaporator needs to be controlled to refrigerate the refrigerating chamber. Specifically, the preset refrigerating temperature is 4 ℃, and if the temperature of the refrigerating room is larger than or equal to 4 ℃, a refrigerating instruction is generated to control the refrigerating evaporator to refrigerate the refrigerating room.

Fig. 4 is a schematic diagram illustrating a solenoid valve control circuit according to an embodiment of the present invention. As shown in fig. 4, the solenoid valve control module includes a refrigerating signal conversion module 401, a refrigerating signal conversion module 402, a refrigerating switch module 403, and a refrigerating switch module 404, and the refrigerating switch module 403 includes a first switch tube 4031 and a second switch tube 4032, and the refrigerating switch module 404 includes a third switch tube 4041 and a fourth switch tube 4042. The refrigerating signal conversion module 401 and the freezing signal conversion module 402 are respectively connected with the controller, the first switching tube 4031 and the second switching tube 4032 control the on and off of the switching tube according to the refrigerating pulse signal sent by the refrigerating signal conversion module 401, and the third switching tube 4041 and the fourth switching tube 4042 control the on and off of the switching tube according to the freezing pulse signal sent by the freezing signal conversion module 402.

In the embodiment of the invention, when the refrigerating compartment is judged to be required to be refrigerated, namely when the temperature of the refrigerating compartment is judged to be greater than or equal to the preset refrigerating temperature, the generated refrigerating instruction is sent to the refrigerating signal conversion module of the electromagnetic valve control module, and after the refrigerating signal conversion module receives the refrigerating instruction, the control process of the electromagnetic valve is started. Specifically, the refrigerating signal conversion module converts the received signal into voltages loaded on the first switching tube, the second switching tube, the third switching tube and the fourth switching tube, so that the first switching tube and the second switching tube are conducted, and the third switching tube and the fourth switching tube are cut off, so that the voltage loaded on the first level end is negative level and the voltage loaded on the second level end is positive level. At this time, the first outlet valve of the electromagnetic valve is connected with the refrigeration evaporator, namely, the refrigerant flows into the refrigeration evaporator through the electromagnetic valve to refrigerate the refrigeration compartment.

Fig. 5 is a schematic diagram of a solenoid valve control circuit according to an embodiment of the present invention. As shown in fig. 5, N1 is a controller, N2 is a refrigerating signal conversion module, and N3 is a freezing signal conversion module. The electromagnetic valve is a pulse electromagnetic valve. The supply voltage is, for example, 300V dc. When the controller judges that the refrigerating compartment is required to be refrigerated according to the measured temperature of the refrigerating compartment, a refrigerating pulse signal is output, wherein the on time of the refrigerating pulse signal is a pre-stored on time interval, and an exemplary pre-stored on time interval is 3 milliseconds. Specifically, the controller sets the pins 25 and 26 to high level for 3 ms, at this time, the on time of the first switching tube is 3 ms, the third switching tube is turned off, and sets the pins 23 and 24 to low level for 3 ms, so that the fourth switching tube Guan Jiezhi is turned on for 3 ms. At this time, a negative voltage is applied to the first level terminal for 3 ms, and a positive voltage is applied to the second level terminal for 3 ms. Then, the pins 23 and 25 are set to low level for 17 ms, and the pins 26 and 24 are set to high level for 17 ms at the same time, so that the first switching tube, the second switching tube, the third switching tube and the fourth switching tube are all turned off, and at this time, no voltage is applied to both the second level terminal and the first level terminal.

S303: if the temperature of the freezing chamber is larger than or equal to the preset freezing temperature, a freezing and refrigerating instruction is generated and sent to the electromagnetic valve control module, and the electromagnetic valve control module outputs a negative level to the second level end and outputs a positive level to the first level end, so that the second outlet valve is communicated with the freezing evaporator.

In the refrigerating process of the refrigerator, when judging that the refrigerating compartment does not need to be refrigerated, if new food is stored in the refrigerating compartment to cause the temperature of the refrigerating compartment to rise, in order to ensure the refrigerating and storing effects of the food, the refrigerating evaporator needs to be controlled to refrigerate the refrigerating compartment. Specifically, the preset freezing temperature is minus 5 ℃, and if the temperature of the freezing compartment is larger than or equal to minus 5 ℃, a freezing and refrigerating instruction is generated to control the storage evaporator to refrigerate the freezing compartment.

On the basis of the electromagnetic valve control circuit diagram provided in fig. 4, when it is determined that refrigeration is required to be performed on the refrigeration compartment, that is, when it is determined that the temperature of the refrigeration compartment is greater than or equal to a preset refrigeration temperature, the generated refrigeration instruction is sent to the refrigeration signal conversion module of the electromagnetic valve control module, and after the refrigeration signal conversion module receives the refrigeration instruction, the control process of the electromagnetic valve is started. Specifically, the freezing signal conversion module converts the received signal into voltages loaded on the first switch tube, the second switch tube, the third switch tube and the fourth switch tube, so that the first switch tube and the second switch Guan Jiezhi are conducted, and the voltage loaded on the first level end is positive level and the voltage loaded on the second level end is negative level. At this time, the first outlet valve of the electromagnetic valve is connected with the freezing evaporator, namely, the refrigerant flows into the freezing evaporator through the electromagnetic valve to refrigerate the freezing compartment.

Based on the solenoid valve control circuit diagram provided in fig. 5, when the controller determines that the refrigerating compartment needs to be refrigerated according to the measured refrigerating compartment temperature, a refrigerating pulse signal is output, wherein the on time of the low refrigerating pulse signal is a pre-stored on time interval, and an exemplary pre-stored on time interval is 3 milliseconds. Specifically, the controller sets the pins 25 and 26 to low level for 3 ms, at this time, the first switching tube is turned off for 3 ms, and the third switching tube is turned on, and sets the pins 23 and 24 to high level for 3 ms, so that the fourth switching tube is turned on, and the second switching tube is turned off for 3 ms. At this time, a negative voltage is applied to the second level terminal for 3 ms, and a positive voltage is applied to the first level terminal for 3 ms. Then, the pins 23 and 25 are set to low level for 17 ms, and the pins 26 and 24 are set to high level for 17 ms at the same time, so that the first switching tube, the second switching tube, the third switching tube and the fourth switching tube are all turned off, and at this time, no voltage is applied to both the second level terminal and the first level terminal.

According to the electromagnetic valve control method, under the condition that an electromagnetic valve device of a refrigerating system is not replaced, a power supply control circuit of the electromagnetic valve is provided, and under the condition that the power supply current of the electromagnetic valve is direct current, positive and negative pulses are generated by controlling pulse signals of the power supply control circuit, so that the refrigerating process of a refrigerating compartment and a freezing compartment is controlled, the electric energy loss is reduced, and the power supply efficiency is improved.

Fig. 6 is a second schematic flow chart of a solenoid valve control method according to an embodiment of the present invention. In the embodiment of the present invention, on the basis of the embodiment provided in fig. 3, a temperature detection module is further configured to detect the temperature of the refrigeration evaporator and the temperature of the freezing evaporator. In order to ensure the refrigerating effect, the embodiment of the invention provides a control method for repeatedly executing an electromagnetic valve, which comprises the following specific steps:

s601: and obtaining the temperature of the refrigerating room detected by the temperature detection module and the temperature of the freezing room.

S602: and if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, generating a refrigerating instruction, and sending the refrigerating instruction to the electromagnetic valve control module.

S603: and if the temperature of the freezing room is larger than or equal to the preset freezing temperature, generating a freezing and refrigerating instruction, and sending the freezing and refrigerating instruction to the electromagnetic valve control module.

In the embodiment of the present invention, S601 to S603 are identical to the methods and effects implemented in S301 to S303 in the embodiment of fig. 3, and are not described herein.

S6041: and after a preset time period, acquiring the refrigeration end temperature of the refrigeration evaporator detected by the temperature detection module.

In the embodiment of the invention, after the refrigerating and refrigerating instruction is sent to the electromagnetic valve control module, the electromagnetic valve control module responds to the refrigerating and refrigerating instruction and outputs a negative level to the first level end and a positive level to the second level end. The refrigeration evaporator cools the refrigeration compartment if the solenoid valve control module is capable of engaging the first outlet valve with the refrigeration evaporator in response to a refrigeration command. In the process that the electromagnetic valve control module responds to the refrigerating instruction to control the conduction of the electromagnetic valve, in order to avoid the condition that the first outlet valve is not opened due to the fact that the conduction time of the refrigerating pulse signal is short, whether the electromagnetic valve is conducted or not and whether the refrigerating process is carried out or not can be judged by monitoring the refrigerating temperature of the refrigerating evaporator. For example, the preset time period is set to 2 minutes, and the refrigeration evaporator temperature detected by the temperature detection module is collected as the refrigeration end temperature of the refrigeration evaporator when the refrigeration instruction is sent to the electromagnetic valve control module for 2 minutes.

S6042: and after a preset time period, acquiring the refrigeration end temperature of the refrigeration evaporator detected by the temperature detection module.

In the embodiment of the invention, after a freezing and refrigerating instruction is sent to the electromagnetic valve control module, the electromagnetic valve control module responds to the freezing and refrigerating instruction and outputs a positive level to the first level end and a negative level to the second level end. If the solenoid valve control module is capable of switching the second outlet valve to the freezing evaporator in response to a freezing refrigeration command, the freezing evaporator begins to refrigerate to the freezing compartment. In the process that the electromagnetic valve control module responds to the freezing and refrigerating instruction to control the conduction process of the electromagnetic valve, in order to avoid the condition that the first outlet valve is not opened due to the fact that the conduction time of the freezing pulse signal is short, whether the electromagnetic valve is conducted or not and whether the refrigerating process is carried out or not can be judged by monitoring the refrigerating temperature of the freezing evaporator. For example, the preset time period is set to be 2 minutes, and the freezing evaporator temperature detected by the temperature detection module is collected as the freezing evaporator refrigerating end temperature when the freezing refrigerating instruction is sent to the electromagnetic valve control module for 2 minutes.

S6051: if the refrigeration end temperature of the refrigeration evaporator is higher than the first preset refrigeration temperature parameter, the step S602 is repeatedly executed.

In the embodiment of the invention, when the first outlet valve is not opened due to the short conduction time of the refrigeration pulse signal, the refrigerant does not flow into the refrigeration evaporator, and the refrigeration ending temperature of the refrigeration evaporator is excessively high. In order to ensure the refrigerating effect of the refrigerating evaporator, when the refrigerating end temperature of the refrigerating evaporator is higher than a first preset refrigerating temperature parameter, the voltage loaded on the electromagnetic valve needs to be controlled again, so that the first outlet valve of the electromagnetic valve is communicated with the refrigerating evaporator. The first preset refrigeration temperature parameter is illustratively minus 5 degrees celsius.

S6052: if the refrigeration end temperature of the freezing evaporator is higher than the first preset refrigeration temperature parameter, the step S603 is repeatedly executed.

In the embodiment of the invention, when the second outlet valve is not opened due to the short conduction time of the freezing pulse signal, the refrigerant does not flow into the freezing evaporator, and the refrigerating end temperature of the freezing evaporator is too high. In order to ensure the refrigeration effect of the refrigeration evaporator, when the refrigeration end temperature of the refrigeration evaporator is higher than a first preset refrigeration temperature parameter, the voltage loaded on the electromagnetic valve needs to be controlled again, so that the second outlet valve of the electromagnetic valve is communicated with the refrigeration evaporator. The first preset refrigeration temperature parameter is illustratively minus 10 degrees celsius.

According to the electromagnetic valve control method provided by the embodiment, after the electromagnetic valve is controlled for the preset time period, the conduction condition of the electromagnetic valve is judged by monitoring the refrigeration temperature of the refrigeration evaporator or the freezing evaporator, so that the phenomenon that the electromagnetic valve is not conducted to influence the refrigeration effect of the refrigeration evaporator or the freezing evaporator is avoided, and the refrigeration effect of the refrigerator is guaranteed.

Fig. 7 is a flowchart illustrating a solenoid valve control method according to an embodiment of the present invention. In the embodiment of the present invention, in order to ensure the refrigerating effect of the refrigerating compartment on the basis of the embodiment provided in fig. 3, the embodiment of the present invention provides a solenoid valve control method for ensuring the refrigerating effect of the refrigerating compartment by adjusting pulse signals, which specifically includes the following steps:

S701: and obtaining the temperature of the refrigerating room detected by the temperature detection module and the temperature of the freezing room.

S702: and acquiring the initial temperature of the refrigeration evaporator detected by the temperature detection module.

In the embodiment of the invention, the temperature detection module can also be used for detecting the temperature of the refrigerating evaporator and the temperature of the freezing evaporator. Illustratively, a temperature detection module is utilized to collect a real-time temperature within the refrigerated evaporator as an initial temperature of the refrigerated evaporator prior to controlling a loading voltage of the solenoid valve.

S703: and if the temperature of the refrigerating room is larger than or equal to the preset refrigerating temperature, generating a refrigerating instruction, and sending the refrigerating instruction to the electromagnetic valve control module.

In the embodiment of the present invention, S703 is identical to the method and effect implemented in S302 in the embodiment of fig. 3, and will not be described herein.

S704: and acquiring the refrigerating temperature of the refrigerating evaporator detected by the temperature detection module, and determining the temperature difference value of the refrigerating evaporator according to the initial temperature of the refrigerating evaporator and the refrigerating temperature of the refrigerating evaporator.

In the embodiment of the invention, in the process of controlling the electromagnetic valve to enable the first outlet valve to be communicated with the refrigeration evaporator, the refrigeration temperature of the refrigeration evaporator detected by the temperature detection module is collected in real time, and the change of the temperature, namely the temperature difference value of the refrigeration evaporator, is determined according to the collected initial temperature of the refrigeration evaporator and the refrigeration temperature of the refrigeration evaporator in real time.

S705: if the temperature difference of the refrigerating evaporator is smaller than the preset refrigerating difference, determining a new refrigerating pulse signal according to a preset conduction time interval and a pre-stored refrigerating pulse signal, wherein the pre-stored refrigerating pulse signal is a refrigerating pulse signal contained in a last refrigerating instruction.

In the embodiment of the invention, when the temperature difference of the refrigeration evaporator is judged to be smaller than the set range, the fact that the refrigerant does not flow into the refrigeration evaporator currently can be judged, namely the first outlet valve of the electromagnetic valve is not communicated with the refrigeration evaporator. Specifically, when it is determined that the temperature difference of the refrigeration evaporator is less than the preset refrigeration difference, the conduction time of the electromagnetic valve needs to be increased, so that the first outlet valve of the electromagnetic valve can be connected with the refrigeration evaporator.

Illustratively, the pre-stored refrigeration pulse signal includes at least one pre-stored on-time interval. When it is determined that the first outlet valve is not opened due to the short conduction time of the refrigeration pulse signal, a new refrigeration pulse signal may be determined according to a preset conduction time interval and a pre-stored refrigeration pulse signal, and specifically, the pre-stored refrigeration pulse signal is a refrigeration pulse signal included in a previous refrigeration instruction. The pre-stored on time interval is set, for example, to 3 milliseconds. When the first outlet valve of the first control electromagnetic valve is connected with the refrigeration evaporator, the on time of the refrigeration pulse signal contained in the first refrigeration instruction is 1 preset on time interval, namely 3 milliseconds. When the solenoid valve is controlled according to the first refrigeration instruction but the first outlet valve of the solenoid valve is not yet connected with the refrigeration evaporator, the conduction time of the refrigeration pulse signal contained in the first refrigeration instruction is set to be the sum of the conduction time of the prestored refrigeration pulse signal and the first refrigeration pulse signal. For example, the pre-stored refrigerating pulse signal is 3 ms, the on time of the first refrigerating pulse signal is 1 preset on time interval of 3 ms, and the on time of the second refrigerating pulse signal is 5 ms. In the embodiment of the invention, the purpose of controlling the connection between the first outlet valve of the electromagnetic valve and the refrigeration evaporator can be realized by increasing the conduction time of the refrigeration pulse signal.

For example, a new conduction time interval may be generated according to the sum of the pre-stored conduction time interval and the preset conduction time interval, and a new refrigeration pulse signal may be generated according to the number of pre-stored conduction time intervals and the new conduction time interval included in the pre-stored refrigeration pulse signal. Specifically, the preset on time interval is 2 ms, the pre-stored on time interval is 3 ms, and the new on time interval is 5 ms. Specifically, if the number of pre-stored on time intervals of the pre-stored refrigeration pulse signal, i.e., the refrigeration pulse signal included in the last refrigeration instruction, is 2, the number of pulses of the new refrigeration pulse signal is 2, and the pulse on time is 5 ms.

For example, the new refrigerating pulse signal may be generated according to the sum of the number of the pre-stored on time intervals and the preset number contained in the pre-stored refrigerating pulse signal, and according to the number of the new on time intervals and the pre-stored on time intervals. For example, if the preset number is 2, and the number of pre-stored on time intervals included in the pre-stored refrigeration pulse signal, that is, the number of refrigeration pulse signals included in the last refrigeration instruction is 1, the number of new on time intervals is 3. The number of pulses of the new refrigerating pulse signal is 3 and the pulse on time is 3 ms which is the pre-stored on time interval.

For example, a new conduction time interval may be generated according to the sum of the pre-stored conduction time intervals and the preset conduction time intervals, and a new refrigeration pulse signal may be generated according to the number of pre-stored conduction time intervals and the sum of the preset number of pre-stored conduction time intervals included in the pre-stored refrigeration pulse signal, and according to the number of new conduction time intervals and the new conduction time intervals. For example, the preset on-time interval is 2 milliseconds, the pre-stored on-time interval is 3 milliseconds, and the new on-time interval is 5 milliseconds. For example, if the preset number is 2, and the number of pre-stored on time intervals included in the pre-stored refrigeration pulse signal, that is, the number of refrigeration pulse signals included in the last refrigeration instruction is 1, the number of new on time intervals is 3. The new cool pulse signal has a pulse number of 3 and a pulse on time of 5 ms.

In the embodiment of the invention, in order to avoid the failure of the electromagnetic valve caused by overlong on time, the pulse number and the pulse on time of the refrigeration pulse signal need to be controlled. The maximum number of pulses of the exemplary refrigerated pulse signal is 8, the pulse on time is 9 milliseconds at maximum, and the pulse frequency is between 45HZ and 65 HZ.

S706: and generating a new refrigeration instruction according to the new refrigeration pulse signal, and sending the new refrigeration instruction to the electromagnetic valve control module.

According to the electromagnetic valve control method provided by the embodiment, when the temperature variation of the refrigeration evaporator is lower than the preset refrigeration difference value, the condition that the first outlet valve is not opened due to the fact that the conduction time of the refrigeration pulse signal is short is indicated, the conduction of the electromagnetic valve is controlled by increasing the conduction time of the refrigeration pulse signal, the refrigeration effect of the refrigeration evaporator is prevented from being influenced due to the fact that the electromagnetic valve is not conducted, and the refrigeration effect of the refrigerator is guaranteed.

Fig. 8 is a flowchart of a solenoid valve control method according to an embodiment of the present invention. In the embodiment of the present invention, in order to ensure the refrigerating effect on the refrigerating compartment on the basis of the embodiment provided in fig. 3, the embodiment of the present invention provides a solenoid valve control method for ensuring the refrigerating effect on the refrigerating compartment by adjusting pulse signals, which specifically comprises the following steps:

s801: and obtaining the temperature of the refrigerating room detected by the temperature detection module and the temperature of the freezing room.

S802: and acquiring the initial temperature of the freezing evaporator detected by the temperature detection module.

Illustratively, a temperature detection module is utilized to collect a real-time temperature within the freeze evaporator as the initial temperature of the freeze evaporator prior to controlling the applied voltage to the solenoid valve.

S803: and if the temperature of the freezing room is larger than or equal to the preset freezing temperature, generating a freezing and refrigerating instruction, and sending the freezing and refrigerating instruction to the electromagnetic valve control module.

In the embodiment of the present invention, S803 is identical to the method and effect implemented in S303 in the embodiment of fig. 3, and will not be described herein.

S804: and acquiring the refrigerating temperature of the freezing evaporator detected by the temperature detection module, and determining the temperature difference value of the freezing evaporator according to the initial temperature of the freezing evaporator and the refrigerating temperature of the freezing evaporator.

In the embodiment of the invention, in the process of controlling the electromagnetic valve to enable the second outlet valve to be communicated with the freezing evaporator, the refrigerating temperature of the freezing evaporator detected by the temperature detection module is collected in real time, and the change of the temperature, namely the temperature difference value of the freezing evaporator, is determined according to the collected initial temperature of the freezing evaporator and the refrigerating temperature of the freezing evaporator in real time.

S805: if the temperature difference of the freezing evaporator is smaller than the preset freezing difference, determining a new freezing pulse signal according to a preset conduction time interval and a pre-stored freezing pulse signal, wherein the pre-stored freezing pulse signal is the freezing pulse signal contained in the last freezing and refrigerating instruction.

In the embodiment of the invention, when the temperature difference of the freezing evaporator is smaller than the set range, it can be determined that no refrigerant flows into the freezing evaporator currently, that is, the second outlet valve of the electromagnetic valve is not connected with the freezing evaporator. Specifically, when it is determined that the freezing evaporator temperature difference is smaller than the preset freezing difference, the conduction time of the electromagnetic valve needs to be increased, so that the second outlet valve of the electromagnetic valve can be connected with the freezing evaporator.

Illustratively, the pre-stored freeze pulse signal comprises at least one pre-stored on-time interval. When it is determined that the conduction time of the freezing pulse signal is shorter, and the second outlet valve is not opened, a new freezing pulse signal can be determined according to a preset conduction time interval and a pre-stored freezing pulse signal, and specifically, the pre-stored freezing pulse signal is a freezing pulse signal contained in a last freezing and refrigerating instruction. Illustratively, the pre-stored on-time interval is set to not 3 milliseconds. When the second outlet valve of the first control electromagnetic valve is connected with the freezing evaporator, the connection time of the freezing pulse signal contained in the first freezing and refrigerating instruction is 1 preset connection time interval, namely 3 milliseconds. When the electromagnetic valve is controlled according to the first freezing and refrigerating instruction but the second outlet valve of the electromagnetic valve is not connected with the freezing evaporator yet, the conduction time of the freezing pulse signal contained in the first freezing and refrigerating instruction is set to be the sum of the conduction time of the pre-stored freezing pulse signal and the first freezing pulse signal. For example, the pre-stored freezing pulse signal is 3 ms, the on time of the first freezing pulse signal is 1 preset on time interval of 3 ms, and the on time of the second freezing pulse signal is 5 ms. In the embodiment of the invention, the purpose of controlling the connection between the second outlet valve of the electromagnetic valve and the freezing evaporator can be realized by increasing the conduction time of the freezing pulse signal.

For example, a new conduction time interval may be generated according to the sum of the pre-stored conduction time interval and the preset conduction time interval, and a new freezing pulse signal may be generated according to the number of pre-stored conduction time intervals and the new conduction time interval included in the pre-stored freezing pulse signal. Specifically, the preset on time interval is 2 ms, the pre-stored on time interval is 3 ms, and the new on time interval is 5 ms. Specifically, if the number of pre-stored on time intervals of the pre-stored freezing pulse signal, i.e., the freezing pulse signal included in the last freezing and refrigerating instruction, is 2, the number of pulses of the new freezing pulse signal is 2, and the pulse on time is 5 ms.

For example, the new freezing pulse signal may be generated according to the sum of the number of pre-stored on time intervals and the preset number contained in the pre-stored freezing pulse signal, and according to the number of new on time intervals and the pre-stored on time intervals. For example, if the preset number is 2, and the number of pre-stored on time intervals included in the pre-stored freezing pulse signal, that is, the number of freezing pulse signals included in the last freezing and refrigerating instruction is 1, the number of new on time intervals is 3. The number of pulses of the new freeze pulse signal is 3 and the pulse on time is 3 ms, which is the pre-stored on time interval.

For example, a new conduction time interval may be generated according to the sum of the pre-stored conduction time intervals and the preset conduction time intervals, and a new freezing pulse signal may be generated according to the number of pre-stored conduction time intervals and the sum of the preset number of pre-stored conduction time intervals included in the pre-stored freezing pulse signal, and according to the number of new conduction time intervals and the new conduction time intervals. For example, the preset on-time interval is 2 milliseconds, the pre-stored on-time interval is 3 milliseconds, and the new on-time interval is 5 milliseconds. For example, if the preset number is 2, and the number of pre-stored on time intervals included in the pre-stored freezing pulse signal, that is, the number of freezing pulse signals included in the last freezing and refrigerating instruction is 1, the number of new on time intervals is 3. The number of pulses of the new freeze pulse signal is 3 and the pulse on time is 5 ms.

In the embodiment of the invention, in order to avoid the failure of the electromagnetic valve caused by overlong on time, the pulse quantity and the pulse on time of the refrigeration cold pulse signal need to be controlled. The maximum number of pulses of the exemplary cold pulse signal is 8, the pulse on time is 9 milliseconds at maximum, and the pulse frequency is between 45HZ and 65 HZ.

S806: and generating a new refrigeration instruction according to the new refrigeration pulse signal, and sending the new refrigeration instruction to the electromagnetic valve control module.

According to the electromagnetic valve control method provided by the embodiment, when the temperature variation of the freezing evaporator is lower than the preset freezing difference value, the condition that the first outlet valve is not opened due to the fact that the conduction time of the freezing pulse signal is short is indicated, the conduction of the electromagnetic valve is controlled by increasing the conduction time of the freezing pulse signal, the refrigeration effect of the freezing evaporator is prevented from being influenced due to the fact that the electromagnetic valve is not conducted, and the refrigeration effect of the refrigerator is guaranteed.

Fig. 9 is a schematic structural diagram of a solenoid valve control device according to an embodiment of the present invention. The solenoid valve control apparatus is applied to a controller, as shown in fig. 9, and includes: the acquisition module 901 and the transmission module 902.

The acquisition module 901 is used for acquiring the temperature of the refrigerating compartment and the temperature of the freezing compartment, which are detected by the temperature detection module;

A sending module 902, configured to generate a refrigeration instruction if it is determined that the temperature of the refrigeration compartment is greater than or equal to a preset refrigeration temperature, and send the refrigeration instruction to the solenoid valve control module, so that the solenoid valve control module outputs a negative level to the first level end and outputs a positive level to the second level end, so that the first outlet valve is connected to the refrigeration evaporator; and if the temperature of the freezing compartment is larger than or equal to the preset freezing temperature, generating a freezing and refrigerating instruction, sending the freezing and refrigerating instruction to the electromagnetic valve control module, and outputting a negative level to the second level end and a positive level to the first level end by the electromagnetic valve control module so that the second outlet valve is communicated with the freezing evaporator.

The device provided in this embodiment may be used to implement the technical solution of the foregoing method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein again.

Fig. 10 is a schematic structural diagram of a controller according to an embodiment of the present invention. As shown in fig. 10, the controller of the present embodiment includes: a processor 1001 and a memory 1002; wherein the method comprises the steps of

Memory 1002 for storing computer-executable instructions;

The processor 1001 is configured to execute computer-executable instructions stored in the memory, so as to implement the steps executed by the first server in the foregoing embodiment. Reference may be made in particular to the relevant description of the embodiments of the method described above.

Alternatively, the memory 1002 may be separate or integrated with the processor 1001.

When the memory 1002 is provided separately, the server further comprises a bus 1003 for connecting said memory 1002 and the processor 1001.

The embodiment of the invention also provides a computer storage medium, wherein computer execution instructions are stored in the computer storage medium, and when a processor executes the computer execution instructions, the electromagnetic valve control method is realized.

The embodiment of the invention also provides a computer program product, which comprises a computer program, wherein the computer program realizes the electromagnetic valve control method when being executed by a processor. The embodiment of the invention also provides a computer program product, which comprises a computer program, wherein the computer program realizes the electromagnetic valve control method when being executed by a processor.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to implement the solution of this embodiment.

In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit. The units formed by the modules can be realized in a form of hardware or a form of hardware and software functional units.

The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional modules described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or processor to perform some of the steps of the methods described in the various embodiments of the application.

It should be appreciated that the Processor may be a central processing unit (Central Processing Unit, abbreviated as CPU), or may be other general purpose Processor, digital signal Processor (DIGITAL SIGNAL Processor, abbreviated as DSP), application SPECIFIC INTEGRATED Circuit (ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

The Memory may include a high-speed random access Memory (Random Access Memory, RAM), and may further include a Non-Volatile Memory (NVM), such as at least one magnetic disk Memory, and may also be a U-disk, a removable hard disk, a read-only Memory, a magnetic disk, or an optical disk.

The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the buses in the drawings of the present application are not limited to only one bus or to one type of bus.

The storage medium may be implemented by any type or combination of volatile or non-volatile Memory devices, such as Static Random-Access Memory (SRAM), electrically erasable programmable Read-Only Memory (ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY, EEPROM), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an Application SPECIFIC INTEGRATED Circuits (ASIC). It is also possible that the processor and the storage medium reside as discrete components in an electronic device or a master device.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. A refrigerator, comprising:

the controller is configured to:

If the temperature of the freezing compartment is larger than or equal to the preset freezing temperature, generating a freezing and refrigerating instruction, sending the freezing and refrigerating instruction to the electromagnetic valve control module, and outputting a negative level to the second level end and a positive level to the first level end by the electromagnetic valve control module so that the second outlet valve is communicated with the freezing evaporator;

the refrigerating instruction comprises a refrigerating pulse signal;

2. The refrigerator of claim 1, wherein the temperature detection module is further configured to detect a refrigeration evaporator temperature and a freezing evaporator temperature.

3. The refrigerator of claim 2, wherein the controller is configured, after executing the sending the refrigeration instruction to the solenoid valve control module, to further:

4. The refrigerator of claim 1, wherein the pre-stored refrigeration pulse signal comprises at least one pre-stored on time interval;

Or alternatively

5. The refrigerator of claim 2, wherein the freezing and refrigerating command comprises a freezing pulse signal;

6. The refrigerator of claim 5, wherein the pre-stored freeze pulse signal comprises at least one pre-stored on time interval;

Or alternatively

7. The refrigerator of any one of claims 1 to 6, wherein the solenoid valve control module comprises a refrigeration signal conversion module, a freezing signal conversion module, a refrigeration switch module, and a freezing switch module;

8. The refrigerator of claim 7, wherein the refrigeration switch module comprises a first switch tube and a second switch tube, and the freezer switch module comprises a third switch tube and a fourth switch tube.

9. The electromagnetic valve control method is characterized by comprising a controller applied to a control module of a refrigerator, the refrigerator further comprises a refrigerator body, a refrigerating system and a temperature detection module, wherein a refrigerating compartment and a freezing compartment are arranged in the refrigerator body, the refrigerating system is arranged in the refrigerator body and comprises a compressor, an electromagnetic valve, a refrigerating evaporator, a freezing evaporator, a filter and a condenser pipe, the electromagnetic valve comprises an inlet valve, a first outlet valve and a second outlet valve, the inlet valve of the electromagnetic valve is connected with the outlet of the filter, the first outlet valve of the electromagnetic valve is connected with the inlet of the refrigerating evaporator, the second outlet valve of the electromagnetic valve is connected with the inlet of the freezing evaporator, and the electromagnetic valve further comprises a first level end and a second level end; the temperature detection module is used for detecting the temperature of the refrigerating room and the temperature of the freezing room; the control module further comprises an electromagnetic valve control module, the controller is respectively connected with the electromagnetic valve control module and the temperature detection module, and the electromagnetic valve control module is respectively connected with a first level end and a second level end of the electromagnetic valve;

The method comprises the following steps:

the refrigerating instruction comprises a refrigerating pulse signal;

After the temperature detection module detects the temperature of the refrigerating room and the temperature of the freezing room, the method further comprises:

Accordingly, after the generating the refrigerating instruction and sending the refrigerating instruction to the electromagnetic valve control module, the method further comprises: