CN114719506A - Refrigerator and control method thereof - Google Patents

Refrigerator and control method thereof Download PDF

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Publication number
CN114719506A
CN114719506A CN202210207015.XA CN202210207015A CN114719506A CN 114719506 A CN114719506 A CN 114719506A CN 202210207015 A CN202210207015 A CN 202210207015A CN 114719506 A CN114719506 A CN 114719506A
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China
Prior art keywords
outlet
inlet
gating mechanism
state
gating
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CN202210207015.XA
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Chinese (zh)
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CN114719506B (en
Inventor
冷川
张云峰
轩福臣
陈君
牛愉涛
张庆男
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Qingdao Haier Biomedical Co Ltd
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Qingdao Haier Biomedical Co Ltd
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Priority to CN202210207015.XA priority Critical patent/CN114719506B/en
Publication of CN114719506A publication Critical patent/CN114719506A/en
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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The application relates to the technical field of refrigeration equipment, discloses a fridge, including condenser and dew removal pipe, still include: the inlet of the first gating mechanism is connected with the refrigerant inflow port, the first outlet of the first gating mechanism is connected with the inlet of the condenser, and the second outlet of the first gating mechanism is connected with the inlet of the dew removing pipe; the inlet of the second gating mechanism is connected with the outlet of the condenser, the first outlet of the second gating mechanism is connected with the refrigerant outflow port, and the second outlet of the second gating mechanism is connected with the inlet of the dew removing pipe; and the inlet of the third gating mechanism is connected with the outlet of the dew removing pipe, the first outlet of the third gating mechanism is connected with the refrigerant outflow port, and the second outlet of the third gating mechanism is connected with the inlet of the condenser. Because the state of each gating mechanism is set according to the ambient humidity, the heat released by the dew removing pipe is based on the ambient humidity, and the dew removing effect of the refrigerating box is improved under different ambient humidity. The application also discloses a control method of the refrigerator.

Description

Refrigerator and control method thereof
Technical Field
The present application relates to the field of refrigeration equipment technology, and for example, to a refrigeration container and a method for controlling the same.
Background
At present, in order to conveniently check medicines in a medical refrigerator, a transparent glass door is often adopted for the refrigerator. Under the high-temperature and high-humidity environment, the condensation problem often occurs at the opening and closing position of the refrigerator body and the refrigerator door of the refrigerating box.
The related art has the refrigerating box with the condensation removing function, which comprises a compressor, a condensing assembly, a condensation removing pipe, a capillary tube and an evaporator which are connected in sequence, wherein the condensing assembly comprises a condensing pipe and a switch element; the condenser pipe comprises a main condenser pipe and an auxiliary condenser pipe, and the switching element is connected with the auxiliary condenser pipe in parallel; when the switch element is turned on, the auxiliary condensation pipe is in a short-circuit state; when the switch element is closed, the main condensation pipe and the auxiliary condensation pipe are connected in series.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the technology can solve the condensation problem of the refrigerating box. However, the dew condensation removing pipe is located behind the condensing unit, and the dew condensation removing effect is poor in the case where the ambient humidity is high.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a refrigerator and a control method thereof, which are used for improving dew removing effect of the refrigerator under different environmental humidity.
In some embodiments, the refrigeration case includes a condenser and a dew removing tube, further comprising: the inlet of the first gating mechanism is connected with the refrigerant inflow port, the first outlet of the first gating mechanism is connected with the inlet of the condenser, and the second outlet of the first gating mechanism is connected with the inlet of the dew removing pipe; the inlet of the second gating mechanism is connected with the outlet of the condenser, the first outlet of the second gating mechanism is connected with the refrigerant outflow port, and the second outlet of the second gating mechanism is connected with the inlet of the dew removing pipe; the inlet of the third gating mechanism is connected with the outlet of the dew removing pipe, the first outlet of the third gating mechanism is connected with the refrigerant outflow port, and the second outlet of the third gating mechanism is connected with the inlet of the condenser; under the condition that the first gating mechanism and the second gating mechanism are set to be in the first state, the refrigerant flows through the condenser; under the condition that the first gating mechanism, the second gating mechanism and the third gating mechanism are set to be in the second state, the refrigerant sequentially flows through the condenser and the dew removing pipe; under the condition that the first gating mechanism, the second gating mechanism and the third gating mechanism are set to be in the third state, the refrigerant sequentially flows through the dew removing pipe and the condenser.
Optionally, the first gating mechanism comprises: the inlet of the first one-way valve is connected with the refrigerant inflow port, and the outlet of the first one-way valve is connected with the inlet of the condenser; the inlet of the second one-way valve is connected with the refrigerant inflow port, and the outlet of the second one-way valve is connected with the inlet of the dew removing pipe; when the first gating mechanism is set to be in the first state, the first check valve is opened, and the second check valve is closed; when the first gating mechanism is set to be in the second state, the first check valve is opened, and the second check valve is closed; when the first gate mechanism is set to the third state, the first check valve is closed and the second check valve is opened.
Optionally, the first gating mechanism comprises: the inlet of the first electromagnetic valve is connected with the refrigerant inflow port, the first outlet of the first electromagnetic valve is connected with the inlet of the condenser, and the second outlet of the first electromagnetic valve is connected with the inlet of the dew removing pipe; when the first gating mechanism is set to be in the first state, the first outlet of the first electromagnetic valve is opened, and the second outlet of the first electromagnetic valve is closed; when the first gating mechanism is set to be in the second state, the first outlet of the first electromagnetic valve is opened, and the second outlet of the first electromagnetic valve is closed; when the first gating mechanism is set to the third state, the first outlet of the first electromagnetic valve is closed, and the second outlet is opened.
Optionally, the second gating mechanism comprises: the inlet of the third one-way valve is connected with the outlet of the condenser, and the outlet of the third one-way valve is connected with the refrigerant outflow port; the inlet of the fourth one-way valve is connected with the outlet of the condenser, and the outlet of the fourth one-way valve is connected with the inlet of the dew removing pipe; when the second gating mechanism is set to be in the first state, the third one-way valve is opened, and the fourth one-way valve is closed; when the second gating mechanism is set to be in the second state, the third one-way valve is closed, and the fourth one-way valve is opened; when the second gate mechanism is set to the third state, the third check valve is opened and the fourth check valve is closed.
Optionally, the second gating mechanism comprises: the inlet of the second electromagnetic valve is connected with the outlet of the condenser, the first outlet of the second electromagnetic valve is connected with the refrigerant outflow port, and the second outlet of the second electromagnetic valve is connected with the inlet of the dew removing pipe; when the second gating mechanism is set to be in the first state, the first outlet of the second electromagnetic valve is opened, and the second outlet is closed; when the second gating mechanism is set to be in the second state, the first outlet of the second electromagnetic valve is closed, and the second outlet is opened; when the second gating mechanism is set to the third state, the first outlet of the second electromagnetic valve is opened, and the second outlet is closed.
Optionally, the third gating mechanism comprises: the inlet of the fifth one-way valve is connected with the outlet of the dew removing pipe, and the outlet of the fifth one-way valve is connected with the refrigerant outflow port; the inlet of the sixth one-way valve is connected with the outlet of the dew removing pipe, and the outlet of the sixth one-way valve is connected with the inlet of the condenser; when the third gating mechanism is set to be in the second state, the fifth one-way valve is opened, and the sixth one-way valve is closed; when the third gating mechanism is set to the third state, the fifth check valve is closed and the sixth check valve is opened.
Optionally, the third gating mechanism comprises: an inlet of the third electromagnetic valve is connected with an outlet of the dew removing pipe, a first outlet of the third electromagnetic valve is connected with a refrigerant outflow port, and a second outlet of the third electromagnetic valve is connected with an inlet of the condenser; under the condition that the third gating mechanism is set to be in the second state, the first outlet of the third electromagnetic valve is opened, and the second outlet of the third electromagnetic valve is closed; when the third gating mechanism is set to the third state, the first outlet of the third solenoid valve is closed, and the second outlet is opened.
Optionally, the method further comprises: the air outlet of the compressor is used as a refrigerant inflow inlet and connected with the inlet of the first gating mechanism; the outlet of the evaporator is connected with the air inlet of the compressor; the outlet of the capillary tube is connected with the inlet of the evaporator; and the inlet of the filter is connected with the first outlets of the second gating mechanism and the third gating mechanism as a refrigerant outlet, and the outlet of the filter is connected with the inlet of the capillary tube.
Optionally, the method further comprises: the condenser, the dew removing pipe, the first gating mechanism, the second gating mechanism, the third gating mechanism, the compressor, the evaporator, the capillary tube and the filter are arranged in the box body; and the box door is connected with the box body and is used for opening or closing the box body.
In some embodiments, the control method is for the above refrigerator, comprising: detecting the environmental humidity; under the condition that the ambient humidity is less than or equal to a first set humidity, setting the first gating mechanism and the second gating mechanism to be in a first state; setting the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a second state under the condition that the ambient humidity is greater than the first set humidity and less than or equal to the second set humidity; and under the condition that the ambient humidity is greater than the second set humidity, setting the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a third state.
The refrigerating box and the control method thereof provided by the embodiment of the disclosure can realize the following technical effects:
the heat required for dew removal varies at different ambient humidities. The connection mode of the dew removing pipe is changed by setting the states of the first gating mechanism, the second gating mechanism and the third gating mechanism, so that the refrigerant only flows through the condenser, sequentially flows through the condenser and the dew removing pipe or sequentially flows through the dew removing pipe and the condenser. The temperature of the refrigerant in the dew removing pipe is changed by changing the sequence of the refrigerant flowing through each component, and the heat released by the dew removing pipe is adjusted. Because the state of each gating mechanism is set according to the ambient humidity, the heat released by the dew removing pipe is based on the ambient humidity, so that the dew removing effect of the refrigerating box is improved under different ambient humidity. Meanwhile, when the refrigerant flows through the dew removing pipe, heat is released, and certain influence is generated on the medicines in the refrigerating box. The change of the temperature in the box can be reduced by adjusting the heat released by the dew removing pipe during operation, and the storage effect of the medicine is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic view of a cooler according to an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic view of another alternative embodiment of the present disclosure;
FIG. 3 is a schematic view of another alternative embodiment of the present disclosure;
FIG. 4 is a schematic illustration of a method of controlling a cooler according to an exemplary embodiment of the present disclosure;
FIG. 5 is a schematic illustration of another method of controlling a cooler according to an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic diagram illustrating another method for controlling a cooler according to an exemplary embodiment of the present disclosure;
FIG. 7 is a schematic view of another embodiment of the present disclosure for controlling a cooler.
Reference numerals are as follows:
11: a condenser; 12: removing dew pipes; 13: a first gating mechanism; 14: a second gating mechanism; 15: a third gating mechanism; 16: a compressor; 17: an evaporator; 18: a capillary tube; 19: a filter; 131: a first check valve; 132: a second one-way valve; 133: a first solenoid valve; 141: a third check valve; 142: a fourth check valve; 143: a second solenoid valve; 151: a fifth check valve; 152: a sixth check valve; 153: and a third solenoid valve.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
At present, a transparent glass box door is often adopted in a medical refrigerator so as to be convenient for checking the condition of medicines in the box body. Because the temperature of preserving the medicine in the box is low, ambient temperature is high, and the problem of condensation often appears in the department that opens and shuts of box and chamber door.
Referring to fig. 1, the embodiment of the present disclosure provides a refrigeration container including a condenser 11, a dew-removing pipe 12, a first gating mechanism 13, a second gating mechanism 14, and a third gating mechanism 15. The inlet of the first gating mechanism 13 is connected with the refrigerant inlet, the first outlet is connected with the inlet of the condenser 11, and the second outlet is connected with the inlet of the dew-removing pipe 12. An inlet of the second gating mechanism 14 is connected to an outlet of the condenser 11, a first outlet is connected to the refrigerant outflow port, and a second outlet is connected to an inlet of the dew condensation removing pipe 12. An inlet of the third gating mechanism 15 is connected with an outlet of the dew-removing pipe 12, a first outlet is connected with a refrigerant outflow port, and a second outlet is connected with an inlet of the condenser 11. When the first gate mechanism 13 and the second gate mechanism 14 are set to the first state, the refrigerant flows through the condenser 11. When the first gate mechanism 13, the second gate mechanism 14, and the third gate mechanism 15 are set to the second state, the refrigerant flows through the condenser 11 and the dew condensation removing pipe 12 in this order. When the first gate mechanism 13, the second gate mechanism 14, and the third gate mechanism 15 are set to the third state, the refrigerant flows through the dew condensation removing pipe 12 and the condenser 11 in this order.
By adopting the refrigerating box provided by the embodiment of the disclosure, the heat required for dew removal is different under different environmental humidities. The connection mode of the dew removing pipe is changed by setting the states of the first gating mechanism, the second gating mechanism and the third gating mechanism, so that the refrigerant only flows through the condenser, sequentially flows through the condenser and the dew removing pipe or sequentially flows through the dew removing pipe and the condenser. The temperature of the refrigerant in the dew removing pipe is changed by changing the sequence of the refrigerant flowing through each part, and the heat released by the dew removing pipe is adjusted. Because the state of each gating mechanism is set according to the ambient humidity, the heat released by the dew removing pipe is based on the ambient humidity, so that the dew removing effect of the refrigerating box is improved under different ambient humidity. Meanwhile, when the refrigerant flows through the dew removing pipe, heat is released, and certain influence is generated on the medicines in the refrigerating box. The change of the temperature in the box can be reduced by adjusting the heat released by the dew removing pipe during operation, and the storage effect of the medicine is improved.
As shown in fig. 2 and 3, optionally, the first gate mechanism 13 includes a first check valve 131 and a second check valve 132. The first check valve 131 has an inlet connected to the refrigerant inlet and an outlet connected to the inlet of the condenser 11. The second check valve 132 has an inlet connected to the refrigerant inlet and an outlet connected to the inlet of the dew-removing pipe 12. When the first gate mechanism 13 is set to the first state, the first check valve 131 is opened and the second check valve 132 is closed. When the first gate mechanism 13 is set to the second state, the first check valve 131 is opened and the second check valve 132 is closed. When the first gate mechanism 13 is set to the third state, the first check valve 131 is closed and the second check valve 132 is opened. Thus, the combination of two check valves is adopted to select the part into which the refrigerant flows for the first time, so that the refrigerant can be prevented from flowing back in the condenser and the dew removing pipe, and the dew removing effect of the refrigerating box is improved.
Optionally, the first gating mechanism 13 includes a first solenoid valve 133. An inlet of the first solenoid valve 133 is connected to the refrigerant inlet, a first outlet is connected to an inlet of the condenser 11, and a second outlet is connected to an inlet of the dew removing pipe 12. When the first gating mechanism 13 is set to the first state, the first outlet of the first solenoid valve 133 is opened and the second outlet is closed. When the first gating mechanism 13 is set to the second state, the first outlet of the first solenoid valve 133 is opened and the second outlet is closed. When the first gating mechanism 13 is set to the third state, the first outlet of the first solenoid valve 133 is closed, and the second outlet is opened. Therefore, the electromagnetic valve is adopted to select the part into which the refrigerant flows for the first time, and the first gating mechanism is simple in structure and connection mode and low in cost. When the state of the first gating mechanism is changed, only the outlet of one valve needs to be controlled, and the mode of changing the flow direction of the refrigerant is simple.
Optionally, the second gating mechanism 14 includes a third check valve 141 and a fourth check valve 142. An inlet of the third check valve 141 is connected to an outlet of the condenser 11, and an outlet thereof is connected to the refrigerant outflow port. The inlet of the fourth check valve 142 is connected with the outlet of the condenser 11, and the outlet is connected with the inlet of the dew-removing pipe 12. When the second gating mechanism 14 is set to the first state, the third check valve 141 is opened and the fourth check valve 142 is closed. When the second gating mechanism 14 is set to the second state, the third check valve 141 is closed and the fourth check valve 142 is opened. When the second gating mechanism 14 is set to the third state, the third check valve 141 is opened and the fourth check valve 142 is closed. In this way, the combination of two check valves is adopted to select the component for secondary inflow of the refrigerant, thereby preventing the refrigerant from flowing back in the refrigerant outlet and the dew-removing pipe and improving the dew-removing effect of the refrigerating box.
Optionally, the second gating mechanism 14 includes a second solenoid valve 143. An inlet of the second solenoid valve 143 is connected to an outlet of the condenser 11, a first outlet is connected to a refrigerant outflow port, and a second outlet is connected to an inlet of the dew-removing pipe 12. When the second gating means 14 is set to the first state, the first outlet of the second electromagnetic valve 143 is opened, and the second outlet is closed. When the second gating mechanism 14 is set to the second state, the first outlet of the second electromagnetic valve 143 is closed, and the second outlet is opened. When the second gating mechanism 14 is set to the third state, the first outlet of the second electromagnetic valve 143 is open, and the second outlet is closed. Therefore, the part for secondary refrigerant inflow is selected by one electromagnetic valve, and the structure and the connection mode of the second gating mechanism are simple and low in cost. When the state of the second gating mechanism is changed, only the outlet of one valve needs to be controlled, and the mode of changing the flow direction of the refrigerant is simple.
Optionally, the third gating mechanism 15 includes a fifth check valve 151 and a sixth check valve 152. The inlet of the fifth check valve 151 is connected to the outlet of the dew-removing pipe 12, and the outlet is connected to the refrigerant outflow port. The inlet of the sixth check valve 152 is connected to the outlet of the dew-removing pipe 12, and the outlet is connected to the inlet of the condenser 11. When the third gating mechanism 15 is set to the second state, the fifth check valve 151 is opened and the sixth check valve 152 is closed. When the third gating mechanism 15 is set to the third state, the fifth check valve 151 is closed and the sixth check valve 152 is opened. In this way, the combination of two check valves is adopted to select the component for secondary inflow of the refrigerant, thereby preventing the refrigerant from flowing back in the refrigerant outlet and the condenser and improving the dew removing effect of the refrigerating box.
Optionally, the third gating mechanism 15 includes a third solenoid valve 153. An inlet of the third solenoid valve 153 is connected to an outlet of the dew-removing pipe 12, a first outlet is connected to a refrigerant outflow port, and a second outlet is connected to an inlet of the condenser 11. When the third gating mechanism 15 is set to the second state, the first outlet of the third solenoid valve 153 is open and the second outlet is closed. When the third gating mechanism 15 is set to the third state, the first outlet of the third solenoid valve 153 is closed, and the second outlet is opened. Therefore, the part for secondary inflow of the refrigerant is selected by one electromagnetic valve, and the structure and the connection mode of the third gating mechanism are simple and low in cost. When the state of the third gating mechanism is changed, only the outlet of one valve needs to be controlled, and the mode of changing the flow direction of the refrigerant is simple.
The first gate mechanism 13, the second gate mechanism 14, and the third gate mechanism 15 are not limited to the combination of the check valves or the single solenoid valve, but may be other valves or valve combinations that can perform the same or similar functions.
Optionally, the refrigeration case further comprises a compressor 16, an evaporator 17, a capillary tube 18 and a filter 19. An exhaust port of the compressor 16 is connected to an inlet of the first gating mechanism 13 as a refrigerant inflow port, and compresses refrigerant. The outlet of the evaporator 17 is connected to the inlet of the compressor 16 for reducing the temperature in the refrigeration compartment. The outlet of the capillary tube 18 is connected to the inlet of the evaporator 17 for throttling the pressure drop. The filter 19 has an inlet connected to the first outlets of the second gate 14 and the third gate 15 as a refrigerant outlet, and an outlet connected to an inlet of the capillary tube 18 to filter impurities. Therefore, the compressor, the evaporator, the capillary tube and the condenser can be mutually matched, the effect of reducing the temperature in the refrigerating box is achieved, and the refrigeration of the medicines is realized. The filter can filter impurity, prevents that the refrigerant from blockking up in the pipeline.
Optionally, the cooler further comprises a bin and a bin door. The condenser 11, the dew-removing pipe 12, the first gating mechanism 13, the second gating mechanism 14, the third gating mechanism 15, the compressor 16, the evaporator 17, the capillary tube 18 and the filter 19 are arranged in the box body. The box door is connected with the box body and used for opening or closing the box body. Wherein, the dew removing pipe 12 is positioned at the opening and closing position of the box body and the box door. Like this, remove the dew pipe and be located condensation production department, the heat that the during operation released is mainly used for removing the dew, improves the effect of removing the dew. Meanwhile, the change of the temperature in the box can be reduced, and the storage effect of the medicine is improved.
Optionally, the refrigerator further comprises a refrigerant temperature sensor, an ambient temperature sensor, a humidity sensor, a heating wire, and a controller. The coolant temperature sensor is disposed at an inlet of the dew condensation removing pipe 12, and is configured to detect a temperature of the coolant flowing into the dew condensation removing pipe 12. The ambient temperature sensor is arranged in the box body and used for detecting ambient temperature. The humidity sensor is arranged on the box body and used for detecting the environment humidity. The heating wire is arranged in the box body and positioned at the opening and closing position of the box body and the box door for assisting dew removal. The controller is connected with the first gating mechanism 13, the second gating mechanism 14, the third gating mechanism 15, the refrigerant temperature sensor, the ambient temperature sensor, the humidity sensor and the heating wire, and is configured to set the first gating mechanism 13, the second gating mechanism 14 and the third gating mechanism 15 to be in a first state, a second state or a third state according to the ambient humidity detected by the humidity sensor. And adjusting the power of the heating wire according to the refrigerant temperature detected by the refrigerant temperature sensor, the environment temperature detected by the environment temperature sensor and the environment humidity detected by the humidity sensor. Therefore, the state of each gating mechanism can be controlled according to the ambient humidity, and the heat released by the dew removing pipe is based on the ambient humidity so as to improve the dew removing effect of the refrigerating box under different ambient humidity. Under the high temperature and high humidity environment, the amount of condensation is too much, and the dew removing pipe is difficult to meet the dew removing requirement when working independently. The heating wires are used for assisting dew removal so as to improve the dew removal effect of the refrigerating box. The power of the heating wire is adjusted, so that the change of the temperature in the box is reduced, and the storage effect of the medicine is improved.
Referring to fig. 4, an embodiment of the present disclosure provides a method for controlling a refrigerator, including:
s210, the controller detects the ambient humidity.
S221, under the condition that the environmental humidity is less than or equal to the first set humidity, the controller sets the first gating mechanism and the second gating mechanism to be in the first state.
S222, under the condition that the environmental humidity is greater than the first set humidity and less than or equal to the second set humidity, the controller sets the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a second state.
S223, the controller sets the first gating mechanism, the second gating mechanism, and the third gating mechanism to a third state when the ambient humidity is greater than the second set humidity.
By adopting the control method of the refrigerating box provided by the embodiment of the disclosure, the heat required for dew removal is different under different environmental humidities. The connection mode of the dew removing pipe is changed by setting the states of the first gating mechanism, the second gating mechanism and the third gating mechanism, so that the refrigerant only flows through the condenser, sequentially flows through the condenser and the dew removing pipe or sequentially flows through the dew removing pipe and the condenser. The temperature of the refrigerant in the dew removing pipe is changed by changing the sequence of the refrigerant flowing through each component, and the heat released by the dew removing pipe is adjusted. Because the state of each gating mechanism is set according to the ambient humidity, the heat released by the dew removing pipe is based on the ambient humidity, so that the dew removing effect of the refrigerating box is improved under different ambient humidity. Meanwhile, when the refrigerant flows through the dew removing pipe, heat is released, and certain influence is generated on the medicines in the refrigerating box. The change of the temperature in the box can be reduced by adjusting the heat released by the dew removing pipe during operation, and the storage effect of the medicine is improved.
Optionally, the first set humidity is in a range of [20, 30 ]%, and preferably, the first set humidity is 22%, 25%, or 28%. The second set humidity is in the range of [50, 70 ]%, preferably, the second set humidity is 55%, 60% or 65%. Therefore, the values of the set humidity are adapted to the heat released by the dew removing pipe under different humidities, and the change of the temperature in the refrigerator is reduced while the dew removing effect of the refrigerator is improved.
Referring to fig. 5, another method for controlling a refrigerator according to an embodiment of the present disclosure includes:
s210, the controller detects the ambient humidity.
And S230, under the condition that the ambient humidity is less than or equal to the first set humidity, the controller controls the first outlet of the first gating mechanism to be opened and controls the second outlet to be closed.
And S231, the controller controls the first outlet of the second gating mechanism to be opened and controls the second outlet to be closed.
S240, under the condition that the environmental humidity is greater than the first set humidity and less than or equal to the second set humidity, the controller controls the first outlet of the first gating mechanism to be opened and controls the second outlet to be closed.
And S241, the controller controls the second outlet of the second gating mechanism to be opened and controls the first outlet to be closed.
And S242, the controller controls the first outlet of the third gating mechanism to be opened and controls the second outlet to be closed.
And S250, under the condition that the ambient humidity is greater than the second set humidity, the controller controls the second outlet of the first gating mechanism to be opened and controls the first outlet to be closed.
And S251, the controller controls the first outlet of the second gating mechanism to be opened and controls the second outlet to be closed.
And S252, the controller controls the second outlet of the third gating mechanism to be opened and controls the first outlet to be closed.
By adopting the control method of the refrigerating box provided by the embodiment of the disclosure, when the ambient humidity is low, the state of each gating mechanism is set so that the refrigerant only flows through the condenser, and the dew removing pipe does not influence the temperature in the refrigerating box. When the ambient humidity is in, the state of each gating mechanism is set to enable the refrigerant to sequentially flow through the condenser and the dew removing pipe, and the influence of the temperature in the refrigerator is reduced while the dew removing requirement is met by the secondary high-temperature refrigerant which releases part of heat in the condenser. When the environment humidity is high, the state of each gating mechanism is set to enable the refrigerant to sequentially flow through the dew removing pipe and the condenser, and the high-temperature refrigerant discharged by the compressor firstly flows into the dew removing pipe to meet the dew removing requirement.
With reference to fig. 2, a control process of the refrigerator according to the embodiment of the present disclosure will be described by taking an example where the first gating mechanism 13 includes the first check valve 131 and the second check valve 132, the second gating mechanism 14 includes the second electromagnetic valve 143, and the third gating mechanism 15 includes the third electromagnetic valve 153.
When the ambient humidity is lower than the first set humidity, dew removal of the refrigerating box is not needed. When the refrigerant flows through the dew-removing pipe 12, the temperature in the box body is increased, which is not beneficial to the preservation of the medicine. The controller opens the first check valve 131, closes the second check valve 132, controls the first outlet of the second solenoid valve 143 to open, and controls the second outlet to close. The flow direction of the refrigerant is as follows: compressor 16 to first check valve 131 to condenser 11 to second solenoid valve 143 to filter 19 to capillary tube 18 to evaporator 17 to compressor 16. At this time, the refrigerant flows only through the condenser 11, the dew condensation removing pipe 12 does not operate, and the dew condensation removing pipe 12 does not affect the temperature in the tank.
When the ambient humidity is greater than the first set humidity and less than or equal to the second set humidity, dew removal is required. Because the environment with medium humidity has less condensation, excessive heat is not needed. The controller opens the first check valve 131, closes the second check valve 132, controls the second outlet of the second solenoid valve 143 to open, and controls the first outlet to close, controls the first outlet of the third solenoid valve 153 to open, and controls the second outlet to close. The flow direction of the refrigerant is as follows: compressor 16 to first check valve 131 to condenser 11 to second solenoid valve 143 to dewing pipe 12 to third solenoid valve 153 to filter 19 to capillary tube 18 to evaporator 17 to compressor 16. At this time, the refrigerant passes through the condenser 11 and then passes through the dew condensation removing pipe 12, the temperature of the refrigerant is lowered by heat dissipation of the condenser 11, and the temperature of the refrigerant in the dew condensation removing pipe 12 is lower than that of the refrigerant at the refrigerant inlet. Because the refrigerant temperature in the dew removing pipe 12 is low, the dew removing pipe 12 has little influence on the temperature in the box body, and can meet the dew removing requirement.
When the ambient humidity is higher than the second set humidity, strong dew removal is required. Higher heat is required due to more condensation in high humidity environments. The controller closes the first check valve 131, opens the second check valve 132, controls the first outlet of the second solenoid valve 143 to open, and controls the second outlet to close, controls the second outlet of the third solenoid valve 153 to open, and controls the first outlet to close. The flow direction of the refrigerant is as follows: compressor 16 to second check valve 132 to dew removal pipe 12 to third solenoid valve 153 to condenser 11 to second solenoid valve 143 to filter 19 to capillary tube 18 to evaporator 17 to compressor 16. At this time, the refrigerant passes through the dew condensation removing pipe 12 and then passes through the condenser 11, and the temperature of the refrigerant in the dew condensation removing pipe 12 is close to the temperature of the refrigerant at the refrigerant inlet. The dew removing requirement can be met under the condition of high environmental humidity due to the high temperature of the refrigerant in the dew removing pipe 12.
Referring to fig. 6, another method for controlling a refrigerator according to an embodiment of the present disclosure includes:
s210, the controller detects the ambient humidity.
And S221, under the condition that the environmental humidity is less than or equal to the first set humidity, the controller sets the first gating mechanism and the second gating mechanism to be in the first state, and the control is finished.
S222, under the condition that the environmental humidity is greater than the first set humidity and less than or equal to the second set humidity, the controller sets the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a second state, and the control is finished.
S223, the controller sets the first gating mechanism, the second gating mechanism, and the third gating mechanism to a third state when the ambient humidity is greater than the second set humidity.
And S260, detecting the temperature of the refrigerant by the controller.
S270, the controller determines the dew point temperature.
S280, the controller determines the difference between the dew point temperature and the refrigerant temperature.
And S290, adjusting the power of the heating wire by the controller according to the temperature difference.
By adopting the control method of the refrigerating box provided by the embodiment of the disclosure, the current condensation condition is determined according to the difference value between the refrigerant temperature and the dew point temperature. According to the difference of the condensation condition, the power of the heating wire is adjusted, and the change of the temperature in the box is reduced while the dew removing effect is improved.
The dew point temperature in step S270 is determined by calculation according to the formula of the prior art based on the ambient temperature and the ambient humidity, which is not described herein.
Referring to fig. 7, another method for controlling a refrigerator according to an embodiment of the present disclosure includes:
s210, the controller detects the ambient humidity.
And S221, under the condition that the environmental humidity is less than or equal to the first set humidity, the controller sets the first gating mechanism and the second gating mechanism to be in the first state, and the control is finished.
S222, under the condition that the environmental humidity is greater than the first set humidity and less than or equal to the second set humidity, the controller sets the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a second state, and the control is finished.
S223, the controller sets the first gating mechanism, the second gating mechanism, and the third gating mechanism to a third state when the ambient humidity is greater than the second set humidity.
And S260, detecting the temperature of the refrigerant by the controller.
S270, the controller determines the dew point temperature.
S280, the controller determines the difference between the dew point temperature and the refrigerant temperature.
And S291, under the condition that the temperature difference is smaller than a first set difference, the controller cuts off the heating wire.
And S292, under the condition that the temperature difference is greater than or equal to the first set difference and less than the second set difference, the controller adjusts the power of the heating wire to the first set power.
S293, under the condition that the temperature difference is greater than or equal to the second set difference and less than the third set difference, the controller adjusts the power of the heating wire to the second set power.
And S294, adjusting the power of the heating wires to a third set power by the controller under the condition that the temperature difference is greater than or equal to a third set difference.
By adopting the control method of the refrigerating box provided by the embodiment of the disclosure, under different condensation conditions, the heating wires work at different powers to release heat required by condensation removal. By selecting proper power of the heating wire under different temperature differences, the dew removing effect is improved, and meanwhile, the temperature change in the box is reduced.
Optionally, the first set power is smaller than the second set power, and the second set power is smaller than the third set power. When the heating wire is selected, the heating wire is related to the size of the refrigerating box, the refrigerating temperature of the medicine, the temperature and the humidity of the environment and the like, and the value of each set power is the percentage of the total power. The first set power is in a range of [16, 24 ]%, and preferably, the first set power is 18%, 20% or 22%. The second set power is in a range of [56, 64 ]%, and preferably, the second set power is 58%, 60% or 62%. The third setting power is set to be [92, 100 ]%, preferably, the third setting power is set to be 94%, 96% or 98%. Therefore, the power of the heating wire is controlled in a percentage mode, the complexity of setting the power of the heating wire under different conditions is avoided, and the dew removing effect of the refrigerating box is improved.
Optionally, the first set difference is in the range of [0, 0.4] ° c, and preferably, the first set difference is 0.1 ℃, 0.2 ℃ or 0.3 ℃. The second set difference is in the range of [1.8, 2.2] deg.C, preferably 1.9 deg.C, 2 deg.C or 2.1 deg.C. The third set difference is in the range of [4.8, 5.2] deg.C, preferably 4.9 deg.C, 5 deg.C or 5.1 deg.C. Thus, the selection of each set difference corresponds to the amount of condensation generated so that the heater adjusts power to assist in removing the condensation.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A refrigerator comprising a condenser (11) and a dew removing tube (12), characterized by further comprising:
the inlet of the first gating mechanism (13) is connected with the refrigerant inflow port, the first outlet of the first gating mechanism is connected with the inlet of the condenser (11), and the second outlet of the first gating mechanism is connected with the inlet of the dew removing pipe (12);
the inlet of the second gating mechanism (14) is connected with the outlet of the condenser (11), the first outlet is connected with the refrigerant outflow port, and the second outlet is connected with the inlet of the dew removing pipe (12);
the inlet of the third gating mechanism (15) is connected with the outlet of the dew removing pipe (12), the first outlet is connected with the refrigerant outflow port, and the second outlet is connected with the inlet of the condenser (11);
when the first gating mechanism (13) and the second gating mechanism (14) are set to be in the first state, the refrigerant flows through the condenser (11); under the condition that the first gating mechanism (13), the second gating mechanism (14) and the third gating mechanism (15) are set to be in the second state, the refrigerant sequentially flows through the condenser (11) and the dew removing pipe (12); when the first gate mechanism (13), the second gate mechanism (14) and the third gate mechanism (15) are set to the third state, the refrigerant flows through the dew condensation removing pipe (12) and the condenser (11) in sequence.
2. The cooler of claim 1, wherein said first gating means (13) comprises:
the inlet of the first one-way valve (131) is connected with the refrigerant inflow port, and the outlet of the first one-way valve is connected with the inlet of the condenser (11);
the inlet of the second one-way valve (132) is connected with the refrigerant inflow port, and the outlet of the second one-way valve is connected with the inlet of the dew removing pipe (12);
when the first gating mechanism (13) is set to the first state, the first check valve (131) is opened, and the second check valve (132) is closed; when the first gate mechanism (13) is set to the second state, the first check valve (131) is opened, and the second check valve (132) is closed; when the first gate mechanism (13) is set to the third state, the first check valve (131) is closed and the second check valve (132) is opened.
3. The cooler of claim 1, wherein said first gating means (13) comprises:
the inlet of the first electromagnetic valve (133) is connected with the refrigerant inflow port, the first outlet is connected with the inlet of the condenser (11), and the second outlet is connected with the inlet of the dew removing pipe (12);
when the first gating mechanism (13) is set to be in the first state, a first outlet of the first electromagnetic valve (133) is opened, and a second outlet is closed; when the first gating mechanism (13) is set to be in the second state, the first outlet of the first electromagnetic valve (133) is opened, and the second outlet is closed; when the first gate mechanism (13) is set to the third state, the first outlet of the first solenoid valve (133) is closed, and the second outlet is opened.
4. The cooler of claim 1, wherein said second gating means (14) comprises:
the inlet of the third one-way valve (141) is connected with the outlet of the condenser (11), and the outlet of the third one-way valve is connected with the refrigerant outflow port;
the inlet of the fourth one-way valve (142) is connected with the outlet of the condenser (11), and the outlet of the fourth one-way valve is connected with the inlet of the dew removing pipe (12);
when the second gating mechanism (14) is set to the first state, the third check valve (141) is opened, and the fourth check valve (142) is closed; when the second gating mechanism (14) is set to the second state, the third check valve (141) is closed, and the fourth check valve (142) is opened; when the second gate mechanism (14) is set to the third state, the third check valve (141) is opened and the fourth check valve (142) is closed.
5. The cooler of claim 1, wherein said second gating means (14) comprises:
the inlet of the second electromagnetic valve (143) is connected with the outlet of the condenser (11), the first outlet is connected with the refrigerant outflow port, and the second outlet is connected with the inlet of the dew removing pipe (12);
when the second gating mechanism (14) is set to the first state, a first outlet of the second electromagnetic valve (143) is opened, and a second outlet is closed; when the second gating mechanism (14) is set to the second state, the first outlet of the second electromagnetic valve (143) is closed, and the second outlet is opened; when the second gate mechanism (14) is set to the third state, the first outlet of the second solenoid valve (143) is opened, and the second outlet is closed.
6. The cooler of claim 1, wherein said third gating means (15) comprises:
the inlet of the fifth one-way valve (151) is connected with the outlet of the dew removing pipe (12), and the outlet of the fifth one-way valve is connected with the refrigerant outflow port;
the inlet of the sixth one-way valve (152) is connected with the outlet of the dew removing pipe (12), and the outlet of the sixth one-way valve is connected with the inlet of the condenser (11);
when the third gating means (15) is set to the second state, the fifth check valve (151) is opened and the sixth check valve (152) is closed; when the third gating means (15) is set to the third state, the fifth check valve (151) is closed and the sixth check valve (152) is opened.
7. The cooler of claim 1, wherein said third gating means (15) comprises:
the inlet of the third electromagnetic valve (153) is connected with the outlet of the dew removing pipe (12), the first outlet is connected with the refrigerant outflow port, and the second outlet is connected with the inlet of the condenser (11);
when the third gating mechanism (15) is set to be in the second state, the first outlet of the third electromagnetic valve (153) is opened, and the second outlet is closed; when the third gate mechanism (15) is set to the third state, the first outlet of the third solenoid valve (153) is closed, and the second outlet is opened.
8. The cooler of any one of claims 1-7, further comprising:
a compressor (16) with an exhaust port as a refrigerant inflow port connected with an inlet of the first gating mechanism (13);
an evaporator (17) having an outlet connected to an air inlet of the compressor (16);
a capillary tube (18) having an outlet connected to an inlet of the evaporator (17);
and a filter (19) having an inlet connected to first outlets of the second and third gate mechanisms (14, 15) as a refrigerant outlet, and an outlet connected to an inlet of the capillary tube (18).
9. The cooler of claim 8, further comprising:
the device comprises a box body, wherein a condenser (11), a dew removing pipe (12), a first gating mechanism (13), a second gating mechanism (14), a third gating mechanism (15), a compressor (16), an evaporator (17), a capillary tube (18) and a filter (19) are arranged in the box body;
and the box door is connected with the box body and is used for opening or closing the box body.
10. A control method for a refrigerator according to any one of claims 1 to 9, comprising:
detecting the environmental humidity;
under the condition that the ambient humidity is less than or equal to a first set humidity, setting the first gating mechanism and the second gating mechanism to be in a first state;
setting the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a second state under the condition that the ambient humidity is greater than the first set humidity and less than or equal to a second set humidity;
and under the condition that the ambient humidity is greater than the second set humidity, setting the first gating mechanism, the second gating mechanism and the third gating mechanism to be in a third state.
CN202210207015.XA 2022-03-03 2022-03-03 Refrigerator and control method thereof Active CN114719506B (en)

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CN111457666A (en) * 2019-01-18 2020-07-28 青岛海尔电冰箱有限公司 Anti-condensation control method for refrigeration equipment
CN112240648A (en) * 2019-07-16 2021-01-19 博西华电器（江苏）有限公司 Refrigeration device
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JPH04366343A (en) * 1991-06-12 1992-12-18 Hitachi Ltd Controlling system for dew preventing heater in air conditioner
CN101832692A (en) * 2009-03-13 2010-09-15 海尔集团公司 Device and method for removing dew on glass
JP2014059110A (en) * 2012-09-18 2014-04-03 Sharp Corp Refrigerator and cooling mechanism
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