Cooling method of refrigerator, refrigerator, storage medium and electronic equipment

Abstract

The invention provides a heat dissipation method of a refrigerator, the refrigerator, a storage medium and electronic device.The method comprises the steps that the first environment temperature outside the refrigerator is detected, and the heat dissipation temperature of a compressor of the refrigerator is detected; a refrigerant is controlled to flow into a first air return pipe from an evaporator according to the first environment temperature and the heat dissipation temperature, and the first air return pipe is not attached to a capillary tube and is arranged on the air inlet side of the bottom of a compressor bin; and the refrigerant is controlled to flow to the compressor from the first air return pipe. The refrigerator solves the technical problem of slow heat dissipation of the compressor bin of the refrigerator in the prior art, can effectively reduce the temperature of the compressor bin, improves the refrigeration efficiency of the compressor, and reduces potential safety hazards caused by high temperature of the refrigerator.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a heat dissipation method for refrigerators, a refrigerator, a storage medium, and an electronic device. Background Art

[0002] In the related technology, as built-in refrigerators become more and more popular among users, users have higher and higher requirements for built-in refrigerators. In order to make the home decoration beautiful, built-in refrigerators have developed into free embedding, flat embedding, zero embedding and other categories, so that the refrigerator and the cabinet are perfectly combined. However, as the heat dissipation space decreases, the temperature of the compressor compartment is affected by factors such as the ambient temperature and the large refrigerator load. It becomes higher and higher. As the refrigerator serves its service life, the condenser of the built-in refrigerator (generally a rotary fin condenser, a wire tube condenser, and mostly a microchannel condenser) accumulates more and more dust, resulting in a lower supercooling degree of the condenser, which affects the heat dissipation of the refrigerant, reduces the refrigeration efficiency, increases the compressor operation rate, increases the compressor temperature, and increases the compressor compartment temperature. The temperature at the top of the compressor can exceed 100°C, and the exhaust temperature can exceed 120°C in harsh environments, posing a safety hazard.

[0003] With respect to the above-mentioned problems existing in the related technologies, no efficient and accurate solutions have been found yet. Summary of the invention

[0004] The present invention provides a heat dissipation method for a refrigerator, a refrigerator, a storage medium, and an electronic device, so as to solve the technical problem of slow heat dissipation of the temperature of a compressor compartment of a refrigerator in the related art.

[0005] According to one embodiment of the present invention, a heat dissipation method for a refrigerator is provided, comprising: detecting a first ambient temperature outside the refrigerator, and detecting a heat dissipation temperature of a compressor of the refrigerator; controlling the refrigerant to flow from an evaporator into a first return air pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first return air pipe is not attached to a capillary tube, and the first return air pipe is arranged on an air inlet side at the bottom of a compressor compartment; controlling the refrigerant to flow from the first return air pipe to the compressor.

[0006] Optionally, controlling the refrigerant to flow from the first return air pipe to the compressor includes: detecting the terminal temperature of the first return air pipe; determining whether the terminal temperature is less than a preset threshold; if the terminal temperature is less than the preset threshold, controlling the refrigerant to flow from the first return air pipe to the second return air pipe, and then flowing to the compressor through the second return air pipe, wherein the second return air pipe is attached to the capillary tube.

[0007] Optionally, after determining whether the terminal temperature is less than a preset threshold, the method further includes: if the terminal temperature is greater than or equal to the preset threshold, controlling the refrigerant to flow directly from the first return air pipe to the compressor.

[0008] Optionally, controlling the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature includes: judging whether the first ambient temperature is greater than a first preset temperature, and judging whether the heat dissipation temperature is greater than a second preset temperature; if the first ambient temperature is greater than the first preset temperature, and the heat dissipation temperature is greater than the second preset temperature, controlling the refrigerant to flow from the evaporator into the first return air pipe.

[0009] Optionally, controlling the refrigerant to flow from the evaporator into the first return air pipe includes: detecting a current refrigeration request of the refrigerator; if the current refrigeration request is a first refrigeration request for the refrigerating chamber, controlling the refrigerant to flow from the condenser into the refrigerating evaporator, and from the refrigerating evaporator into the first return air pipe; if the current refrigeration request is a second refrigeration request for the freezing chamber, controlling the refrigerant to flow from the condenser into the freezing evaporator, and from the freezing evaporator into the first return air pipe.

[0010] Optionally, before controlling the refrigerant to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature, the method further includes: detecting the box body temperature and ambient humidity of the peripheral heat conduction box of the first return air duct; calculating the dew point temperature of the peripheral heat conduction box according to the ambient humidity; judging whether the box body temperature is lower than the dew point temperature; if the box body temperature is lower than the dew point temperature, allowing the refrigerant to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature; if the box body temperature is greater than or equal to the dew point temperature, not allowing the refrigerant to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature.

[0011] Optionally, detecting the heat dissipation temperature of the compressor of the refrigerator includes at least one of the following: detecting the top temperature of the compressor of the refrigerator; detecting the condensing fan temperature of the refrigerator.

[0012] According to another embodiment of the present invention, a refrigerator is provided, comprising: a controller, a compressor, an evaporator, a condenser, and a first return air pipe connected to the evaporator outlet, wherein the controller comprises: a first detection module, for detecting a first ambient temperature outside the refrigerator, and detecting a heat dissipation temperature of the compressor of the refrigerator; a first control module, for controlling the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first return air pipe is not attached to the capillary tube, and the first return air pipe is arranged on the air inlet side of the bottom of the compressor compartment; a second control module, for controlling the refrigerant to flow from the first return air pipe to the compressor.

[0013] Optionally, the outer side of the first air return pipe is covered with an outer heat conduction box.

[0014] Optionally, the second control module includes: a detection unit for detecting the terminal temperature of the first return air pipe; a judgment unit for judging whether the terminal temperature is less than a preset threshold; a first control unit for controlling the refrigerant to flow from the first return air pipe to the second return air pipe and to flow to the compressor through the second return air pipe if the terminal temperature is less than the preset threshold, wherein the second return air pipe is attached to the capillary tube.

[0015] Optionally, the second control module also includes: a second control unit, which is used to control the refrigerant to flow directly from the first return air pipe to the compressor if the terminal temperature is greater than or equal to the preset threshold after the judgment unit determines whether the terminal temperature is less than a preset threshold.

[0016] Optionally, the first control module includes: a judgment unit, used to judge whether the first ambient temperature is greater than a first preset temperature, and to judge whether the heat dissipation temperature is greater than a second preset temperature; a control unit, used to control the refrigerant to flow from the evaporator into the first return air pipe if the first ambient temperature is greater than the first preset temperature and the heat dissipation temperature is greater than the second preset temperature.

[0017] Optionally, the control unit includes: a detection subunit, used to detect a current refrigeration request of the refrigerator; a control subunit, used to control the refrigerant to flow from the condenser into the refrigeration evaporator and from the refrigeration evaporator into the first return air pipe if the current refrigeration request is a first refrigeration request for the refrigerating chamber; if the current refrigeration request is a second refrigeration request for the freezing chamber, control the refrigerant to flow from the condenser into the freezing evaporator and from the freezing evaporator into the first return air pipe.

[0018] Optionally, the refrigerator also includes: a second detection module, used to detect the box body temperature and ambient humidity of the peripheral heat conduction box of the first return air duct before the first control module controls the refrigerant to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature; a calculation module, used to calculate the dew point temperature of the peripheral heat conduction box according to the ambient humidity; a judgment module, used to judge whether the box body temperature is lower than the dew point temperature; a third control module, used to allow the refrigerant to be controlled to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature if the box body temperature is lower than the dew point temperature; if the box body temperature is greater than or equal to the dew point temperature, not to allow the refrigerant to be controlled to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature.

[0019] Optionally, the first detection module includes at least one of the following: a first detection unit, used to detect the top temperature of the compressor of the refrigerator; a second detection unit, used to detect the condensing fan temperature of the refrigerator.

[0020] According to another aspect of an embodiment of the present application, a storage medium is further provided, which includes a stored program, and the above steps are executed when the program is run.

[0021] According to another aspect of an embodiment of the present application, there is also provided an electronic device, including a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; wherein: the memory is used to store computer programs; and the processor is used to execute the steps in the above method by running the program stored in the memory.

[0022] According to yet another embodiment of the present invention, a storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above-mentioned device embodiments when running.

[0023] Through the embodiment of the present invention, a first ambient temperature outside the refrigerator is detected, and the heat dissipation temperature of the compressor of the refrigerator is detected, and the refrigerant is controlled to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first return air pipe is not attached to the capillary tube, and the first return air pipe is arranged on the air inlet side of the bottom of the compressor compartment, and the refrigerant is controlled to flow from the first return air pipe to the compressor, and the refrigerant is controlled to flow from the evaporator into the first return air pipe arranged on the air inlet side of the compressor compartment, and the residual cooling of the evaporator is used to cool the ambient air entering the compressor compartment, thereby improving the heat dissipation effect of the compressor compartment, solving the technical problem of slow temperature heat dissipation of the compressor compartment of the refrigerator in the related art, and can effectively reduce the temperature of the compressor compartment, improve the refrigeration efficiency of the compressor, and reduce the safety hazards caused by high temperature of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 is a hardware structure block diagram of a refrigerator according to an embodiment of the present invention;

[0026] Figure 2 is a flow chart of a heat dissipation method for a refrigerator according to an embodiment of the present invention;

[0027] Figure 3 is a schematic diagram of the flow direction of the refrigerant in an embodiment of the present invention;

[0028] Figure 4 It is a structural block diagram of a refrigerator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0031] Example 1

[0032] The method embodiment provided in the first embodiment of the present application can be executed in a refrigerator, a compressor, a compressor heat dissipation controller or a similar device management device. Taking running on a refrigerator as an example, Figure 1 : is a hardware structure block diagram of a refrigerator according to an embodiment of the present invention. Figure 1 As shown, the refrigerator may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Optionally, the refrigerator may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above refrigerator. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0033] The memory 104 can be used to store refrigerator programs, for example, software programs and modules of application software, such as a refrigerator program corresponding to a heat dissipation method of a refrigerator in an embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the refrigerator program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the refrigerator via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0034] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by the communication provider of the refrigerator. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0035] In this embodiment, a method for heat dissipation of a refrigerator is provided. Figure 2 is a flow chart of a heat dissipation method for a refrigerator according to an embodiment of the present invention. Figure 2 As shown, the process includes the following steps:

[0036] Step S202, detecting a first ambient temperature outside the refrigerator, and detecting a heat dissipation temperature of a compressor of the refrigerator;

[0037] Optionally, the heat dissipation temperature of the compressor may be, but is not limited to, the compressor top temperature, the condensing fan temperature, etc., which may represent the internal temperature of the compressor compartment where the compressor is located.

[0038] Optionally, the refrigerator may be a built-in refrigerator with slow heat dissipation, and the solution of this embodiment may also be applicable to refrigerators of other models. In addition to refrigerators, the solution may also be applied to other equipment including compressors.

[0039] Step S204, controlling the refrigerant to flow from the evaporator into the first air return pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first air return pipe is not attached to the capillary tube, and the first air return pipe is arranged at the air inlet side of the bottom of the compressor compartment;

[0040] This embodiment can control the flow direction of the refrigerant by switching the valve on the refrigerant pipeline. The first return pipe is not attached to the capillary tube, which can avoid the capillary tube from exchanging heat with the refrigerant in the first return pipe, and the refrigerant in the first return pipe can be maintained at a lower temperature.

[0041] Optionally, the compressor compartment is deployed on the bottom plate of the refrigerator, and the first return air duct is attached to the air inlet side of the bottom plate of the refrigerator. The ambient air enters from the air inlet side, passes through the surface of the first return air duct and is cooled, thereby reducing the temperature of the ambient air, thereby taking away the heat in the compressor compartment and achieving a cooling effect.

[0042] Step S206, controlling the refrigerant to flow from the first air return pipe to the compressor.

[0043] Through the above steps, the first ambient temperature outside the refrigerator is detected, and the heat dissipation temperature of the compressor of the refrigerator is detected. According to the first ambient temperature and the heat dissipation temperature, the refrigerant is controlled to flow from the evaporator into the first return air pipe, wherein the first return air pipe is not attached to the capillary tube, and the first return air pipe is arranged on the air inlet side of the bottom of the compressor compartment. The refrigerant is controlled to flow from the first return air pipe to the compressor. By controlling the refrigerant to flow from the evaporator into the first return air pipe arranged on the air inlet side of the compressor compartment, and then flowing back to the compressor from the first return air pipe, the residual cooling of the evaporator can be used to cool the ambient air entering the compressor compartment, thereby improving the heat dissipation effect of the compressor compartment, solving the technical problem of slow temperature heat dissipation of the compressor compartment of the refrigerator in the related technology, effectively reducing the temperature of the compressor compartment, improving the refrigeration efficiency of the compressor, and reducing the safety hazards caused by the high temperature of the refrigerator.

[0044] Figure 3It is a schematic diagram of the flow direction of the refrigerant in an embodiment of the present invention, including: a condenser, an anti-condensation pipe, a valve 1, a capillary tube 1, an evaporator 1 (refrigeration evaporator), a valve 2, a return air pipe 1 (a first return air pipe), a valve 3, a capillary tube 2, an evaporator 2 (a freezing evaporator), a valve 4, a valve 5, a valve 6, a return air pipe 2 (a second return air pipe), and a compressor. The flow direction of the refrigerant is shown by an arrow. Valves 4 and 5 are one-way valves, flowing toward the compressor. Valves 1 to 3 are two-way valves. The refrigerant first flows from the compressor to the condenser and then passes through the anti-condensation tube. It is then divided into two directions by the electric switching valve of valve 1: 1. Capillary 2 (frozen capillary) → evaporator 2; at this time, it is divided into two directions by the electric switching valve 6: (1) to the return air pipe 2 and finally to the compressor; (2) to the return air pipe 1 and the main control decides whether to go to the return air pipe 2 or to the compressor; 2. Capillary 1 (refrigerated capillary) → evaporator 1; at this time, it is divided into two directions by the electric switching valve of valve 2: (1) to the frozen evaporator; (2) to the return air pipe 1, which is the return air pipe placed at the bottom of the compressor compartment; among them, the second direction is divided into two directions by the electric switching valve of valve 3 via the return air pipe 1: (1) directly to the compressor; (2) merges with the return air pipe 2 and finally flows to the compressor.

[0045] In one implementation of the present embodiment, controlling the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature includes: judging whether the first ambient temperature is greater than a first preset temperature, and judging whether the heat dissipation temperature is greater than a second preset temperature; if the first ambient temperature is greater than the first preset temperature, and the heat dissipation temperature is greater than the second preset temperature, controlling the refrigerant to flow from the evaporator into the first return air pipe.

[0046] In addition to the first ambient temperature and the heat dissipation temperature, this embodiment can also select the compressor speed as a trigger condition. For example, when the compressor speed is ≥3600 rpm and the first ambient temperature and the heat dissipation temperature are consistent, the refrigerant is controlled to flow from the evaporator into the first return air pipe.

[0047] Optionally, the first preset temperature is 36°C, and can also be adaptively adjusted according to the geographical location of the refrigerator and the heat dissipation conditions of the installation site. When the heat dissipation temperature selects the compressor top temperature, the second preset temperature is 95°C. When the heat dissipation temperature selects the condensing fan temperature, the second preset temperature is 85°C.

[0048] When the ambient temperature outside the refrigerator is greater than 36°C, the heat load of the refrigerator increases significantly. To ensure that the compartment temperature meets the requirements, the compressor runs at a higher speed. When the user sets special functions on the refrigerator display panel, such as quick freezing, deep freezing, etc., the compressor speed will exceed 3600 rpm. At this time, the temperature sensor on the top of the compressor and the temperature sensor on the condensing fan begin to record the temperature and collect the heat dissipation temperature. It is updated every 60 seconds. The temperature is connected to the storage device of the refrigerator. If it is detected that the temperature on the top of the compressor is greater than 95°C, or the temperature of the condensing fan is greater than 85°C.

[0049] In some other scenarios of this embodiment, when the first ambient temperature is low or the speed of the compressor is low, the refrigerant does not pass through the first return air pipe. For example, when the refrigeration load is higher than the freezing load, when the ambient temperature sensor placed on the display panel detects that the ambient temperature is less than 36°C and the compressor speed is less than 3600 rpm, valve 2 goes to evaporator 2, through evaporator 2 to return air pipe 2, and finally to the compressor; valve 6 goes to return air pipe 2 and finally to the compressor.

[0050] When the ambient temperature is greater than 36°C, or the compressor speed is ≥3600 rpm, the electric switching valve 2 controls the refrigerant passing through the refrigeration evaporator to go to the evaporator 2 or to the return pipe 1, and valve 6 controls the refrigerant to go to the return pipe 1 or the return pipe 2.

[0051] By adopting the solution of this embodiment, when the first ambient temperature outside the refrigerator and the heat dissipation temperature of the compressor are high, the refrigerant is controlled to flow from the evaporator into the first return air pipe, and the ambient air entering the compressor compartment is cooled by the residual cooling of the refrigerant. The ambient air with a lower temperature can achieve a better heat dissipation effect.

[0052] In one example, controlling the refrigerant to flow from the evaporator into the first return air pipe includes: detecting a current refrigeration request of the refrigerator; if the current refrigeration request is a first refrigeration request for the refrigerating chamber, controlling the refrigerant to flow from the condenser into the refrigerating evaporator, and from the refrigerating evaporator into the first return air pipe; if the current refrigeration request is a second refrigeration request for the freezing chamber, controlling the refrigerant to flow from the condenser into the freezing evaporator, and from the freezing evaporator into the first return air pipe.

[0053] The scheme of this example can adapt to the refrigeration and freezing conditions of the refrigerator. When there is a refrigeration request for refrigeration, the refrigerant goes from the compressor to the condenser to the anti-condensation tube, passes through the electric switching valve 1 to the refrigeration capillary tube, and after passing through the refrigeration evaporator, valve 2 switches to the direction of passing through the return air pipe 1, and part of the return air pipe 1 is not attached to the capillary tube. When there is a refrigeration request for freezing, the refrigerant goes from the compressor to the condenser to the anti-condensation tube, passes through the electric switching valve 1 to the freezing capillary tube, and after passing through the freezing evaporator, valve 6 controls the refrigerant to go to the return air pipe 1.

[0054] By adopting the solution of this embodiment, according to different refrigeration conditions of the refrigerator, controlling the refrigerant to flow from the refrigeration evaporator or the freezing evaporator into the first return air pipe can ensure that the refrigerator can dissipate heat for the compressor under different working conditions, thereby improving the stability of the refrigerator.

[0055] In one implementation of the present embodiment, controlling the refrigerant to flow from the first return air pipe to the compressor includes: detecting the terminal temperature of the first return air pipe; determining whether the terminal temperature is less than a preset threshold; if the terminal temperature is less than the preset threshold, controlling the refrigerant to flow from the first return air pipe to the second return air pipe, and then flowing to the compressor through the second return air pipe, wherein the second return air pipe is attached to the capillary tube.

[0056] In another implementation scenario, after determining whether the terminal temperature is less than a preset threshold, the method further includes: if the terminal temperature is greater than or equal to the preset threshold, controlling the refrigerant to flow directly from the first return air pipe to the compressor.

[0057] A temperature sensor is set at the end of the return pipe 1 (the first return pipe). The user collects the terminal temperature of the first return pipe and transmits it to the storage device. Under the condition of refrigeration in the refrigerator, in order to prevent condensation in the first return pipe, the terminal temperature of the first return pipe is 29.1±0.5℃. If the temperature sensor at the end of the return pipe 1 detects that the terminal temperature of the return pipe 1 is less than 28.5℃, the valve 3 controls the refrigerant to go to the return pipe 2. The return pipe 2 is attached to the refrigeration capillary and the freezing capillary (the capillary is used for heating), and goes to the compressor after heat exchange through the capillary. Taking the preset threshold of 28.5℃ as an example, if the terminal temperature is greater than 28.5℃, the refrigerant is controlled by valve 3 to go directly to the compressor. Under the condition of refrigeration in the freezer, in order to prevent condensation in the return pipe, if the temperature sensor at the end of the return pipe 1 detects that the terminal temperature of the return pipe 1 is less than 28.5℃, the valve 3 controls the refrigerant to go to the return pipe 2, and finally to the compressor. If it is greater than 28.5℃, the refrigerant is controlled by valve 3 to go directly to the compressor.

[0058] By adopting the solution of this embodiment, the direction of the refrigerant in the first return air pipe is controlled by the end temperature of the first return air pipe, which can avoid condensation and water accumulation outside the pipe when the end temperature of the first return air pipe is too low. While ensuring the heat dissipation effect of the compressor compartment, the refrigerator is kept dry and clean.

[0059] In one implementation of the present embodiment, before controlling the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature, it also includes: detecting the box body temperature and ambient humidity of the peripheral heat conduction box of the first return air pipe; calculating the dew point temperature of the peripheral heat conduction box according to the ambient humidity; judging whether the box body temperature is lower than the dew point temperature; if the box body temperature is lower than the dew point temperature, allowing the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature; if the box body temperature is greater than or equal to the dew point temperature, not allowing the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature.

[0060] Optionally, the outer side of the first return air pipe is covered with an outer heat-conducting box, such as a metal box. The return air pipe 1 (first return air pipe) is attached to the air inlet side of the bottom plate of the refrigerator. The metal box covering the outer side of the return air pipe 1 may produce condensation, causing water leakage at the bottom of the refrigerator. Different times are set under different ambient temperatures and different humidities. A temperature sensor and a humidity sensor are set at the center of the metal box. The dew point temperature of the metal box is calculated by the humidity of the environment in which the metal box is located. When refrigerant passes through the return air pipe 1, the temperature sensor and humidity sensor located at the center of the metal box start to work. The dew point temperature is calculated through the basic laws of thermodynamics and the ideal gas state equation. When the temperature sensor detects that the box body temperature of the metal box reaches the dew point temperature of the metal at this time, no refrigerant is allowed to pass through the return air pipe 1 temporarily. When the temperature of the metal box rises to a certain temperature, the return air pipe 1 can pass the refrigerant to cool the compressor compartment.

[0061] Optionally, the outer heat conduction box may be connected to a drain pipe, and the condensed water condensed on the outer heat conduction box may be drained to a water receiving pan of a compressor compartment of the refrigerator through the drain pipe.

[0062] By adopting the solution of this embodiment, the flow of refrigerant into the first return air duct is controlled by controlling the ambient humidity and box body temperature of the environment in which the peripheral heat conduction box covering the surface of the first return air duct is located, so as to avoid condensation and water accumulation in the peripheral heat conduction box when the dew point temperature of the peripheral heat conduction box on the surface of the first return air duct is too low. While ensuring the heat dissipation effect of the compressor compartment, the refrigerator is kept dry and clean.

[0063] Optionally, detecting the heat dissipation temperature of the compressor of the refrigerator includes at least one of: detecting the top temperature of the compressor of the refrigerator; detecting the condensing fan temperature of the refrigerator.

[0064] The compressor top temperature and the condensing fan temperature in this embodiment can both represent the temperature conditions of the compressor compartment.

[0065] By adopting the compressor top temperature or the condensing fan temperature as the heat dissipation temperature of the compressor, the heat dissipation mechanism of the compressor can be started when either the compressor top temperature or the condensing fan temperature is too high, thereby improving the accuracy of detecting the compressor heat dissipation temperature and improving the timeliness of the compressor compartment heat dissipation.

[0066] The present embodiment proposes a heat dissipation solution that is particularly suitable for built-in refrigerators. When the refrigerator is in operation, the inlet temperature of the refrigeration evaporator is approximately -3 to -8°C. Since the refrigerant is generally sufficient and in excess when the filling amount is matched, the outlet temperature is approximately the same as the inlet temperature or only 1 to 2°C higher. At this time, the return air pipe of the refrigeration evaporator generally flows to the freezing evaporator, and then flows to the compressor together with the capillary in the return air stage. The temperature of the refrigerant flowing out of the evaporator is lower than the ambient temperature, and the outlet temperature of the freezing evaporator can reach minus 20°C. The present embodiment arranges a return air pipe 1 at the bottom of the refrigerator and an electric switching valve near the evaporator outlet, and utilizes the residual cold of the refrigeration evaporator and the freezing evaporator to cool the compressor compartment. In order to prevent condensation on the return air pipe 1 and cause water leakage in the refrigerator, a thin metal box with good thermal conductivity is added to cover the outer side of the return air pipe 1, and a drain pipe is connected to drain the condensed water to the water receiving pan of the refrigerator compressor compartment.

[0067] The solution of this embodiment utilizes the residual cold of the refrigeration evaporator and the freezing evaporator to effectively cool the compressor compartment of the refrigerator, improve the refrigeration efficiency of the compressor, and reduce the safety hazards brought by the refrigerator.

[0068] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a refrigerator, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0069] Example 2

[0070] In this embodiment, a refrigerator is also provided, and the device is used to implement the above-mentioned embodiment and preferred implementation mode, and the descriptions have been made no further. As used below, the term "module" can implement a combination of software and hardware of the reservation function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, can also be conceived.

[0071] Figure 4 is a structural block diagram of a refrigerator according to an embodiment of the present invention, such as Figure 4 As shown, the refrigerator includes: a controller 40, a compressor 42, an evaporator 44, a condenser 46, and a first return air pipe 48 connected to the outlet of the evaporator, wherein the controller 40 includes:

[0072] A first detection module 400, used to detect a first ambient temperature outside the refrigerator and a heat dissipation temperature of a compressor of the refrigerator;

[0073] A first control module 402, configured to control the refrigerant to flow from the evaporator into a first air return pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first air return pipe is not attached to the capillary tube and is disposed at an air inlet side at the bottom of the compressor compartment;

[0074] The second control module 404 is used to control the refrigerant to flow from the first return air pipe to the compressor.

[0075] Optionally, the outer side of the first air return pipe is covered with an outer heat conduction box.

[0076] Optionally, the second control module includes: a detection unit for detecting the terminal temperature of the first return air pipe; a judgment unit for judging whether the terminal temperature is less than a preset threshold; a first control unit for controlling the refrigerant to flow from the first return air pipe to the second return air pipe and to flow to the compressor through the second return air pipe if the terminal temperature is less than the preset threshold, wherein the second return air pipe is attached to the capillary tube.

[0077] Optionally, the second control module also includes: a second control unit, which is used to control the refrigerant to flow directly from the first return air pipe to the compressor if the terminal temperature is greater than or equal to the preset threshold after the judgment unit determines whether the terminal temperature is less than a preset threshold.

[0078] Optionally, the first control module includes: a judgment unit, used to judge whether the first ambient temperature is greater than a first preset temperature, and to judge whether the heat dissipation temperature is greater than a second preset temperature; a control unit, used to control the refrigerant to flow from the evaporator into the first return air pipe if the first ambient temperature is greater than the first preset temperature and the heat dissipation temperature is greater than the second preset temperature.

[0079] Optionally, the control unit includes: a detection subunit, used to detect a current refrigeration request of the refrigerator; a control subunit, used to control the refrigerant to flow from the condenser into the refrigeration evaporator and from the refrigeration evaporator into the first return air pipe if the current refrigeration request is a first refrigeration request for the refrigerating chamber; if the current refrigeration request is a second refrigeration request for the freezing chamber, control the refrigerant to flow from the condenser into the freezing evaporator and from the freezing evaporator into the first return air pipe.

[0080] Optionally, the refrigerator also includes: a second detection module, used to detect the box body temperature and ambient humidity of the peripheral heat conduction box of the first return air duct before the first control module controls the refrigerant to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature; a calculation module, used to calculate the dew point temperature of the peripheral heat conduction box according to the ambient humidity; a judgment module, used to judge whether the box body temperature is lower than the dew point temperature; a third control module, used to allow the refrigerant to be controlled to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature if the box body temperature is lower than the dew point temperature; if the box body temperature is greater than or equal to the dew point temperature, not to allow the refrigerant to be controlled to flow from the evaporator into the first return air duct according to the first ambient temperature and the heat dissipation temperature.

[0081] Optionally, the first detection module includes at least one of the following: a first detection unit, used to detect the top temperature of the compressor of the refrigerator; a second detection unit, used to detect the condensing fan temperature of the refrigerator.

[0082] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0083] Example 3

[0084] An embodiment of the present invention further provides a storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0085] Optionally, in this embodiment, the above storage medium may be configured to store a computer program for executing:

[0086] S1, detecting a first ambient temperature outside a refrigerator, and detecting a heat dissipation temperature of a compressor of the refrigerator;

[0087] S2, controlling the refrigerant to flow from the evaporator into the first air return pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first air return pipe is not attached to the capillary tube, and the first air return pipe is arranged at the air inlet side of the bottom of the compressor compartment;

[0088] S3, controlling the refrigerant to flow from the first air return pipe to the compressor.

[0089] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0090] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0091] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0092] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0093] S1, detecting a first ambient temperature outside a refrigerator, and detecting a heat dissipation temperature of a compressor of the refrigerator;

[0094] S2, controlling the refrigerant to flow from the evaporator into the first air return pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first air return pipe is not attached to the capillary tube, and the first air return pipe is arranged at the air inlet side of the bottom of the compressor compartment;

[0095] S3, controlling the refrigerant to flow from the first air return pipe to the compressor.

[0096] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0097] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0098] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0099] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0100] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0101] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0102] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a controller or a network device, etc.) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc., various media that can store program codes.

[0103] The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for dissipating heat in a refrigerator, characterized in that: include: Detecting a first ambient temperature outside the refrigerator, and detecting a heat dissipation temperature of a compressor of the refrigerator; According to the first ambient temperature and the heat dissipation temperature, the refrigerant is controlled to flow from the evaporator into the first air return pipe, wherein the first air return pipe is not attached to the capillary tube, and the first air return pipe is arranged at the air inlet side of the bottom of the compressor compartment; The refrigerant is controlled to flow from the first air return pipe to the compressor.

2. The method according to claim 1, characterized in that Controlling the refrigerant to flow from the first return air pipe to the compressor includes: Detecting the terminal temperature of the first air return pipe; Determining whether the terminal temperature is less than a preset threshold; If the terminal temperature is less than a preset threshold, the refrigerant is controlled to flow from the first return air pipe to the second return air pipe, and then to the compressor through the second return air pipe, wherein the second return air pipe is attached to the capillary tube.

3. The method according to claim 2, characterized in that After determining whether the terminal temperature is less than a preset threshold, the method further includes: If the terminal temperature is greater than or equal to a preset threshold, the refrigerant is controlled to flow directly from the first return air pipe to the compressor.

4. The method according to claim 1, characterized in that: Controlling the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature includes: Determining whether the first ambient temperature is greater than a first preset temperature, and determining whether the heat dissipation temperature is greater than a second preset temperature; If the first ambient temperature is greater than a first preset temperature, and the heat dissipation temperature is greater than a second preset temperature, the refrigerant is controlled to flow from the evaporator into the first return air pipe.

5. The method according to claim 4, characterized in that Controlling the refrigerant flowing from the evaporator into the first return air pipe includes: detecting a current refrigeration request of the refrigerator; If the current refrigeration request is the first refrigeration request for the refrigerating chamber, the refrigerant is controlled to flow from the condenser into the refrigerating evaporator, and then into the first return air pipe from the refrigerating evaporator; if the current refrigeration request is the second refrigerating chamber, the refrigerant is controlled to flow from the condenser into the freezing evaporator, and then into the first return air pipe from the freezing evaporator.

6. The method according to claim 1, characterized in that Before controlling the refrigerant to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature, the method further includes: Detecting the box body temperature and ambient humidity of the peripheral heat conduction box of the first air return pipe; Calculating the dew point temperature of the peripheral heat conduction box according to the ambient humidity; Determining whether the box body temperature is less than the dew point temperature; If the box body temperature is lower than the dew point temperature, the refrigerant is allowed to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature; if the box body temperature is greater than or equal to the dew point temperature, the refrigerant is not allowed to flow from the evaporator into the first return air pipe according to the first ambient temperature and the heat dissipation temperature.

7. The method according to claim 1, characterized in that Detecting the heat dissipation temperature of the compressor of the refrigerator includes at least one of the following: Detecting the temperature of the top of the compressor of the refrigerator; The condensing fan temperature of the refrigerator is detected.

8. A refrigerator, characterized in that: The refrigerator comprises: a controller, a compressor, an evaporator, a condenser, and a first return air pipe connected to the outlet of the evaporator, wherein the controller comprises: A first detection module, used to detect a first ambient temperature outside the refrigerator and a heat dissipation temperature of a compressor of the refrigerator; a first control module, configured to control the refrigerant to flow from the evaporator into the first air return pipe according to the first ambient temperature and the heat dissipation temperature, wherein the first air return pipe is not attached to the capillary tube and is arranged at the air inlet side of the bottom of the compressor compartment; The second control module is used to control the refrigerant to flow from the first return air pipe to the compressor.

9. The refrigerator according to claim 8, characterized in that: The outer side of the first air return pipe is covered with an outer heat conduction box.

10. A storage medium, characterized in that: A computer program is stored in the storage medium, wherein the computer program is configured to execute the steps of the refrigerator heat dissipation method in any one of claims 1 to 7 when running.

11. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein: The processor, the communication interface, and the memory communicate with each other via a communication bus; wherein: Memory, used to store computer programs; A processor is used to execute the steps of the heat dissipation method for a refrigerator according to any one of claims 1 to 7 by running a program stored in a memory.

Images