refrigerator

Abstract

The present application discloses a refrigerator. The refrigerator comprises a housing assembly, a compressor, a condenser, a control valve assembly, a dew removal assembly, and an evaporator. The housing assembly comprises a freezing compartment having a door frame with a top portion. The compressor comprises a first input portion and a first output portion. The condenser comprises a first output port and a first input port. The control valve assembly comprises a second input port in communication with the first input port and a second output port. The dew removal assembly comprises a first dew removal tube and a second dew removal tube, the first dew removal tube comprises a first tube, and the second dew removal tube comprises an annular tube. The evaporator comprises a third input port and a third output port in communication with the first input portion, and the third input port is in communication with the first dew removal tube and the second dew removal tube respectively.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority to Chinese Application No. 202311870353.2, filed on December 29, 2023, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present application is in the field of refrigeration technology, and particularly relates to a refrigerator.BACKGROUND

[0003] With a development of social economy and an improvement of people's living standards, a refrigerator has also become an indispensable household appliance in people's daily lives. During operation of a refrigerator, condensation is easily generated and wets the refrigerator. Therefore, most refrigerators utilize a dew removal structure to reduce or avoid condensation on the refrigerator. However, a traditional dew removal structure is not conducive to reducing energy consumption of a refrigerator.SUMMARY

[0004] The present application provides a refrigerator.

[0005] A technical solution thereof is as follows.

[0006] According to a first aspect of embodiments of the present application, a refrigerator is provided, comprising a housing assembly, a compressor, a condenser, a control valve assembly, a dew removal assembly, an expansion valve, an evaporator, and a control component. The housing assembly comprises a freezing compartment, the freezing compartment comprises a door frame, and the door frame comprises a top portion. The compressor is spaced from the door frame and disposed in the housing assembly, and the compressor comprises a first input portion and a first output portion. The condenser is disposed in the housing assembly, and the condenser comprises a first output port and a first input port in communication with the first output portion. The control valve assembly comprises a second input port in communication with the first input port and at least two second output ports. The dew removal assembly comprises a first dew removal tube and a second dew removal tube, one end of the first dew removal tube is connected to one of the second output ports, the first dew removal tube comprises a first tube, the first tube extends along a length direction of the top portion, one end of the second dew removal tube is connected to another one of the second output ports, the second dew removal tube comprises an annular tube, and the annular tube is disposed around the door frame. The expansion valve comprises a second input portion and a second output portion, and the second input portion is in communication with another end of the first dew removal tube and another end of the second dew removal tube respectively. The evaporator is disposed in the housing assembly, the evaporator comprises a third input port and a third output port in communication with the third input port, and the third input port is in communication with the second output portion. The control component is in communication with the compressor and the control valve assembly. When an ambient humidity where the refrigerator is located is less than or equal to a first threshold, the control component controls the control valve assembly to make the first dew removal tube in communication with the first input port and the second dew removal tube closed from the first input port. When the ambient humidity where the refrigerator is located is greater than the first threshold and less than or equal to a second threshold, the control component controls the control valve assembly to make the second dew removal tube in communication with the first input port and the first dew removal tube closed from the first input port.

[0007] The technical solutions provided by the embodiments of the present application at least include the following beneficial effects.

[0008] The refrigerator is provided with the first dew removal tube and the second dew removal tube, and the first tube is made to extend along the length direction of the top portion, and the annular tube is disposed around the door frame. The control component is facilitated to control the first dew removal tube to be conductive or the second dew removal tube to be conductive for dew removal according to different humidity. Specifically, when the ambient humidity where the refrigerator is located is less than or equal to the first threshold, the control component controls the control valve assembly, so that the second output port connected to the first dew removal tube is in communication with the second input port, while other second output ports are not in communication with the second input port, and thus the first dew removal tube is in communication with the first input port, and the second dew removal tube is closed from the first input port. At this time, a refrigerant output by the compressor enters the condenser for condensation, then enters the first dew removal tube, and heats the top portion of the freezing compartment through the first tube. In this process, dew removal may be performed by using the first tube with a small dew removal heating area, which can reduce a thermal load caused by dew removal to the refrigerator, thereby reducing energy consumption of the refrigerator during operation. When the ambient humidity where the refrigerator is located is greater than the first threshold and less than or equal to the second threshold, the control component controls the control valve assembly, so that the second output port connected to the second dew removal tube is in communication with the second input port, while other second output ports are not in communication with the second input port, and thus the second dew removal tube is in communication with the first input port, and the first dew removal tube is closed from the first input port. At this time, a condensation risk of the refrigerator increases, a refrigerant output by the compressor enters the condenser for condensation, then enters the second dew removal tube, and increases a heating area through the annular tube and heats the door frame of the freezing compartment (including a top portion space thereof), thereby effectively avoiding condensation near the freezing compartment. Thus, the refrigerator has a low dew removal energy consumption, which is conducive to reducing energy consumption of the refrigerator.

[0009] The technical solutions of the present application are further described below.

[0010] In one embodiment, when the ambient humidity where the refrigerator is located is greater than the second threshold, the control component controls the control valve assembly to make the first dew removal tube and the second dew removal tube in communication with the first input port respectively.

[0011] In one embodiment, the refrigerator further comprises a humidity detection component in communication with the control component, and the humidity detection component is disposed in the housing assembly and configured to detect a magnitude of an ambient humidity where the refrigerator is located.

[0012] In one embodiment, the annular tube cooperates with the door frame by a snap-fit.

[0013] In one embodiment, the door frame is provided with a first card slot, and the annular tube is inserted in the first card slot.

[0014] In one embodiment, the door frame is provided with a flange, and the flange is bent to form the first card slot.

[0015] In one embodiment, the housing assembly comprises a base, the door frame and the compressor are spaced on the base, and relative to the base, the top portion is disposed above the compressor.

[0016] The first dew removal tube comprises two second tubes, the second tubes are disposed at an acute angle with the base, and the two second tubes are spaced on both sides of the freezing compartment and in communication with both ends of the first tube respectively. One of the second tubes is connected to the second output port, and another one of the second tubes is in communication with the second input portion.

[0017] And / or, the second dew removal tube further comprises a delivery tube in communication with one end of the annular tube and a return tube in communication with another end of the annular tube, at least a portion of the delivery tube and at least a portion of the return tube are adjacent, and are disposed to pass between a lower side of the freezing compartment and the base.

[0018] In one embodiment, at least a portion of the annular tube is nested in the door frame, the door frame is provided with a first notch for avoiding the delivery tube and the return tube, the base is provided with a second notch for avoiding the delivery tube and the return tube, and the second notch is disposed opposite to the first notch.

[0019] In one embodiment, the housing assembly further comprises a crossbeam fixed to the top portion, the crossbeam comprises a first clamping portion, the first clamping portion is spaced from the top portion along a height direction of the housing assembly, and the first tube is disposed at the first clamping portion.

[0020] In one embodiment, the first clamping portion is provided with a second card slot, and the first tube is inserted in the second card slot.

[0021] In one embodiment, the crossbeam further comprises a third card slot cooperating with the top portion by a snap-fit, the top portion cooperates with an inner sidewall of the third card slot to form a clamping hole, and at least a portion of the annular tube is disposed to pass through the clamping hole.

[0022] In one embodiment, the refrigerator further comprises a first air cooler, and the first air cooler is disposed in the housing assembly and configured to perform heat dissipation for the condenser.

[0023] And / or, the refrigerator further comprises a drying assembly configured to dry a refrigerant, and another end of the first dew removal tube and another end of the second dew removal tube are in communication with the second input portion through the drying assembly respectively.

[0024] In one embodiment, the refrigerator further comprises a flow regulation assembly, and another end of the first dew removal tube and another end of the second dew removal tube are in communication with the third input port through the flow regulation assembly.

[0025] The flow regulation assembly is in communication with the control component, when an ambient temperature where the refrigerator is located is less than or equal to a third threshold, the flow regulation assembly outputs a first flow rate. When the ambient temperature where the refrigerator is located is greater than the third threshold, the flow regulation assembly outputs a second flow rate greater than the first flow rate.

[0026] In one embodiment, the refrigerator further comprises a flow regulation assembly, the flow regulation assembly comprises a first capillary tube configured to output the first flow rate, a second capillary tube having a flow area larger than that of the first capillary tube, and a first directional valve in communication with the control component, one end of the first capillary tube and one end of the second capillary tube are in communication with an output port of the first directional valve respectively, another end of the first capillary tube and another end of the second capillary tube are in communication with the third input port respectively, and an input port of the first directional valve is in communication with another end of the first dew removal tube and another end of the second dew removal tube respectively.

[0027] When the ambient temperature where the refrigerator is located is less than or equal to the third threshold, the third input port is in communication with the first dew removal tube and / or the second dew removal tube through the first capillary tube; when the ambient temperature where the refrigerator is located is greater than the third threshold, the third input port is in communication with the first dew removal tube and / or the second dew removal tube through the second capillary tube.

[0028] In one embodiment, the refrigerator further comprises a temperature detection component in communication with the control component, and the temperature detection component is disposed in the housing assembly and configured to detect a magnitude of an ambient temperature where the refrigerator is located.

[0029] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present application.BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings forming a part of the present application are used to provide further understanding of the present application, and schematic embodiments of the present application and descriptions thereof are used to explain the present application, and do not constitute an improper limitation of the present application.

[0031] In order to more clearly explain technical solutions in embodiments of the present application, drawings needed to be used in a description of the embodiments will be briefly introduced below. Obviously, drawings in the following description are only some embodiments of the present application. For a person of ordinary skill in the art, other drawings may also be obtained according to these drawings without creative work. Figure 1 is a structural schematic diagram of a refrigerator shown in an embodiment. Figure 2 is a schematic diagram of a dew removal principle of the refrigerator shown in Figure 1. Figure 3 is a working schematic diagram of the refrigerator shown in Figure 2 with a first dew removal tube open and a second dew removal tube closed. Figure 4 is a working schematic diagram of the refrigerator shown in Figure 2 with the second dew removal tube open and the first dew removal tube closed. Figure 5 is a working schematic diagram of the refrigerator shown in Figure 2 with both a first capillary tube and a second capillary tube open. Figure 6 is a partial structural schematic diagram of the refrigerator shown in Figure 1. Figure 7 is an enlarged schematic diagram of a partial structure of a base and a freezing compartment of the refrigerator shown in Figure 6. Figure 8 is an enlarged schematic diagram of a partial structure of a door frame and a crossbeam shown in Figure 6. Figure 9 is a partial structural schematic diagram of the refrigerator shown in Figure 6 after removing the freezing compartment and part of a base. Figure 10 is a locally enlarged schematic diagram of a region A shown in Figure 9. Figure 11 is a locally enlarged schematic diagram of a region B shown in Figure 10.

[0032] Description of reference numerals: 10, refrigerator; 100, housing assembly; 110, freezing compartment; 111, door frame; 101, top portion; 102, first card slot; 103, flange; 104, first notch; 120, crossbeam; 121, first clamping portion; 1211, second card slot; 1212, third card slot; 1213, clamping hole; 130, base; 131, second notch; 200, compressor; 210, first input portion; 220, first output portion; 300, condenser; 310, first output port; 320, first input port; 400, control valve assembly; 410, second input port; 420, second output port; 500, dew removal assembly; 510, first dew removal tube; 511, first tube; 512, second tube; 520, second dew removal tube; 521, annular tube; 522, delivery tube; 523, return tube; 600, expansion valve; 610, second input portion; 620, second output portion; 700, evaporator; 710, third input port; 720, third output port; 800, control component; 900, first air cooler; 1000, drying assembly; 1100, flow regulation assembly; 1110, first capillary tube; 1120, second capillary tube; 1130, first directional valve.DETAILED DESCRIPTION OF EMBODIMENTS

[0033] In order to make objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to drawings and specific embodiments. It should be understood that specific embodiments described herein are only used to explain the present application and do not limit a protection scope of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have same meanings as commonly understood by a person of ordinary skill in a technical field to which the present application belongs. Terms used herein in a description of the present application are only for a purpose of describing specific embodiments and are not intended to limit the present application.

[0035] Reference to any related art in the description is not and should not be regarded as an admission or in any form an implication that such related art forms part of common general knowledge in a region of application or any other jurisdiction, or that such related art can be reasonably understood and regarded as relevant by a person of ordinary skill in the art.

[0036] A refrigerator, as a piece of refrigeration equipment, occupies an important position in people's lives and brings many conveniences to people's lives. Currently, there are many types and brands of refrigerators, making many refrigerator products available for consumers to choose from. How to gain consumer favor and enhance product competitiveness becomes increasingly important. Among refrigerator products with similar functions or performance, a refrigerator with a lower energy consumption is more likely to attract a consumer to make a purchase. Therefore, how to reduce energy consumption of a refrigerator has become an increasingly important issue for refrigerator manufacturers.

[0037] Currently, a refrigerator is prone to generate condensation during operation and wet or dirty the refrigerator, which is not conducive to improving a cleanliness of a refrigerator operating environment. Therefore, most refrigerators utilize a dew removal structure to reduce or avoid condensation on the refrigerator.

[0038] In a related art, some refrigerators perform dew removal by providing a dew removal tube in a refrigerating compartment and a freezing compartment respectively, which can reduce or avoid condensation on a refrigerator. However, when a refrigerator works, a traditional dew removal tube structure generates a large thermal load around a freezing compartment, which greatly increases power consumption of the refrigerator and is not conducive to reducing energy consumption of the refrigerator.

[0039] Based on this, the present application provides a refrigerator, which by optimizing a dew removal structure, has a low dew removal energy consumption, and is thus conducive to reducing energy consumption of the refrigerator.

[0040] To better understand the refrigerator of the present application, a further explanation is provided below with reference to the drawings.

[0041] Figures 1 to 4 are structural schematic diagrams of a refrigerator shown in some embodiments. Figure 1 is a structural schematic diagram of a refrigerator shown in an embodiment. Figure 2 is a schematic diagram of a dew removal principle of the refrigerator shown in Figure 1. Figure 3 is a working schematic diagram of the refrigerator shown in Figure 2 with a first dew removal tube open and a second dew removal tube closed. Figure 4 is a working schematic diagram of the refrigerator shown in Figure 2 with the second dew removal tube open and the first dew removal tube closed. In addition, as shown in Figure 1, a thickness direction of the refrigerator is an X-axis direction, a width direction of the refrigerator is a Y-axis direction, and a height direction of the refrigerator is a Z-axis direction.

[0042] As shown in Figures 1 to 4, in some embodiments, a refrigerator 10 is provided, comprising a housing assembly 100, a compressor 200, a condenser 300, a control valve assembly 400, a dew removal assembly 500, an expansion valve 600, an evaporator 700, and a control component 800. The housing assembly 100 comprises a freezing compartment 110, the freezing compartment 110 comprises a door frame 111, and the door frame 111 comprises a top portion 101. The compressor 200 is spaced from the door frame 111 and disposed in the housing assembly 100, and the compressor 200 comprises a first input portion 210 and a first output portion 220. The condenser 300 is disposed in the housing assembly 100, and the condenser 300 comprises a first output port 310 and a first input port 320 in communication with the first output portion 220. The control valve assembly 400 comprises a second input port 410 in communication with the first input port 320 and at least two second output ports 420. The dew removal assembly 500 comprises a first dew removal tube 510 and a second dew removal tube 520. One end of the first dew removal tube 510 is connected to one of the second output ports 420, the first dew removal tube 510 comprises a first tube 511, the first tube 511 extends along a length direction of the top portion 101. One end of the second dew removal tube 520 is connected to another one of the second output ports 420, the second dew removal tube 520 comprises an annular tube 521, and the annular tube 521 is disposed around the door frame 111. The expansion valve 600 comprises a second input portion 610 and a second output portion 620, and the second input portion 610 is in communication with another end of the first dew removal tube 510 and another end of the second dew removal tube 520 respectively. The evaporator 700 is disposed in the housing assembly 100, the evaporator 700 comprises a third input port 710 and a third output port 720 in communication with the third input port 710, and the third input port 710 is in communication with the second output portion 620. The control component 800 is in communication with the compressor 200 and the control valve assembly 400. When an ambient humidity where the refrigerator 10 is located is less than or equal to a first threshold, the control component 800 controls the control valve assembly 400 to make the first dew removal tube 510 in communication with the first input port 320 and the second dew removal tube 520 closed from the first input port 320. When the ambient humidity where the refrigerator 10 is located is greater than the first threshold and less than or equal to a second threshold, the control component 800 controls the control valve assembly 400 to make the second dew removal tube 520 in communication with the first input port 320 and the first dew removal tube 510 closed from the first input port 320.

[0043] During an operation of the refrigerator 10, the compressor 200 works and delivers a high-temperature and high-pressure gaseous refrigerant to the first input port 320 through the first output portion 220. The gaseous refrigerant is condensed by the condenser 300 into a medium-temperature and high-pressure gaseous refrigerant, and then the gaseous refrigerant is delivered from the first output port 310 to a dew removal tube. The dew removal tube is utilized to heat an air near the dew removal tube, thereby reducing a condensation risk. In this process, the refrigerant is further cooled and then enters the expansion valve 600. Through a throttling action of the expansion valve 600, a pressure and a temperature of the refrigerant are further reduced, and a liquid refrigerant flows out from the second output portion. The liquid refrigerant flows from the second output portion into the evaporator 700, the refrigerant absorbs heat in the evaporator 700, causing the refrigerant to become gaseous and flow out from the third output port 720, and enters the compressor 200 through the first input portion 210. Through such a circulation, the evaporator 700 continuously absorbs heat to reduce a temperature of the freezing compartment 110, facilitating use of the freezing compartment 110 for a food freezing preservation.

[0044] Further, the refrigerator 10 is provided with the first dew removal tube 510 and the second dew removal tube 520, and the first tube 511 is made to extend along the length direction of the top portion 101, and the annular tube 521 is disposed around the door frame 111. The control component 800 is facilitated to control the first dew removal tube 510 to be conductive or the second dew removal tube 520 to be conductive for dew removal according to different humidity. Specifically, when the ambient humidity where the refrigerator 10 is located is less than or equal to the first threshold (as shown in Figure 3), the control component 800 controls the control valve assembly 400, so that the second output port 420 connected to the first dew removal tube 510 is in communication with the second input port 410, while other second output ports 420 are not in communication with the second input port 410, and thus the first dew removal tube is in communication with the first input port 320, and the second dew removal tube 520 is closed from the first input port 320. At this time, a refrigerant output by the compressor 200 enters the condenser 300 for condensation, then enters the first dew removal tube 510, and heats the top portion 101 of the freezing compartment 110 (for example, heating a middle beam) through the first tube 511. In this process, dew removal may be performed by using the first tube 511 with a small dew removal heating area, which can reduce a thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation. When the ambient humidity where the refrigerator 10 is located is greater than the first threshold and less than or equal to the second threshold (as shown in Figure 4), the control component 800 controls the control valve assembly 400, so that the second output port 420 connected to the second dew removal tube 520 is in communication with the second input port 410, while other second output ports 420 are not in communication with the second input port 410, and thus the second dew removal tube is in communication with the first input port 320, and the first dew removal tube 510 is closed from the first input port 320. At this time, the condensation risk of the refrigerator 10 increases, a refrigerant output by the compressor 200 enters the condenser 300 for condensation, then enters the second dew removal tube 520, and increases a heating area through the annular tube 521 and heats the door frame 111 of the freezing compartment 110 (including a top portion 101 space thereof), thereby effectively avoiding condensation near the freezing compartment 110. Thus, by optimizing a dew removal structure, the refrigerator 10 has a low dew removal energy consumption, which is conducive to reducing energy consumption of the refrigerator 10.

[0045] From the above description, it can be seen that the refrigerator 10 provided by the present application can meet dew removal requirements under different humidity environments. When an ambient humidity where the refrigerator 10 is located is relatively low, the first dew removal tube 510 is utilized for dew removal, which can reduce the thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation and saving electrical energy. At the same time, condensation near the top portion 101 of the freezing compartment 110 can also be effectively avoided (for example, preventing condensation on a middle beam and a freezing upper door seal). When the ambient humidity where the refrigerator 10 is located is relatively high, the second dew removal tube 520 is utilized for dew removal, and the freezing compartment 110 is heated through a reasonable arrangement of the annular tube 521, which can also reduce the thermal load caused by dew removal to the refrigerator 10. Thus, whether in different working regions or when seasons change, the refrigerator 10 provided by the present application can reduce energy consumption while also having a good dew removal performance.

[0046] It should be noted that "the first tube 511 extends along the length direction of the top portion 101" includes at least a portion of the first tube 511 being directly installed on the top portion 101, or the first tube 511 being indirectly disposed on the top portion 101, as long as the top portion 101 can be heated for dew removal. As shown in Figure 1, along the Z-axis direction, the top portion 101 is an upper frame of the door frame 111, and the length direction of the top portion 101 is the Y-axis direction.

[0047] In some embodiments, a length direction of the first tube 511 is disposed in a same direction as the length direction of the top portion 101.

[0048] It should be noted that "the annular tube 521 is disposed around the door frame 111" includes the annular tube 521 being disposed to wrap around an entire door frame 111, or the annular tube 521 being disposed to wrap around a portion of the door frame 111. As shown in Figure 1, the compressor 200 and the door frame 111 are spaced in the housing assembly 100 along the X-axis direction.

[0049] It should be noted that a value of the first threshold can be flexibly set including but not limited to 60%, 65%, 70%, 75%, etc. A value of the second threshold can be flexibly set including but not limited to 80%, 85%, 90%, 95%, etc.

[0050] Optionally, the first threshold is 75%. The second threshold is 90%.

[0051] As shown in Figure 5, in some embodiments, when the ambient humidity where the refrigerator 10 is located is greater than the second threshold, the control component 800 controls the control valve assembly 400 to make the first dew removal tube 510 and the second dew removal tube 520 in communication with the first input port 320 respectively. Thus, even when a humidity of an operating environment of the refrigerator 10 is very high, a dew removal of the refrigerator 10 can be achieved through a joint operation of the first dew removal tube 510 and the second dew removal tube 520.

[0052] Further, in some embodiments, the refrigerator 10 further comprises a humidity detection component (not shown) in communication with the control component 800, and the humidity detection component is disposed in the housing assembly 100 and configured to detect a magnitude of an ambient humidity where the refrigerator 10 is located. Thus, the control component 800 is facilitated to detect the magnitude of the ambient humidity where the refrigerator 10 is located in real time according to the humidity detection component, and timely control the control valve assembly 400 to switch between the first dew removal tube 510 and the second dew removal tube 520, reducing a condensation risk while reducing energy consumption of the refrigerator 10.

[0053] It should be noted that the humidity detection component includes but is not limited to an extensible hygrometer, a wet and dry bulb thermometer, a dew point thermometer, and a resistive hygrometer, etc.

[0054] As shown in Figure 2, in some embodiments, the refrigerator 10 further comprises a flow regulation assembly 1100, and another end of the first dew removal tube 510 and another end of the second dew removal tube 520 are in communication with the third input port 710 through the flow regulation assembly 1100. The flow regulation assembly 1100 is in communication with the control component 800, when an ambient temperature where the refrigerator 10 is located is less than or equal to a third threshold, the flow regulation assembly 1100 outputs a first flow rate. When the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the flow regulation assembly 1100 outputs a second flow rate greater than the first flow rate. Thus, the control component 800 is in communication with a temperature detection component, when the ambient temperature where the refrigerator 10 is located is less than or equal to the third threshold, an external temperature is relatively low, and an energy required to maintain a freezing effect of the freezing compartment 110 is small, the flow regulation assembly 1100 outputs the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520. When the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the external temperature is relatively high, to maintain the freezing effect of the freezing compartment 110, the flow regulation assembly 1100 needs to output the second flow rate greater than the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520, and then deliver the second flow rate to the evaporator 700 for a rapid heat absorption and cooling. This can further reduce power consumption, improve energy efficiency, and ensure the freezing effect of the refrigerator 10.

[0055] As shown in Figures 2 and 4, and in combination with Figure 11, in some embodiments, the flow regulation assembly 1100 comprises a first capillary tube 1110 configured to output the first flow rate, a second capillary tube 1120 having a flow area larger than that of the first capillary tube 1110, and a first directional valve 1130 in communication with the control component 800, one end of the first capillary tube 1110 and one end of the second capillary tube 1120 are in communication with an output port of the first directional valve 1130 respectively, another end of the first capillary tube 1110 and another end of the second capillary tube 1120 are in communication with the third input port 710 respectively, and an input port of the first directional valve 1130 is in communication with another end of the first dew removal tube 510 and another end of the second dew removal tube 520 respectively. When the ambient temperature where the refrigerator 10 is located is less than or equal to the third threshold, the third input port 710 is in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the first capillary tube 1110; when the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the third input port 710 is in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the second capillary tube 1120. Thus, the control component 800 is in communication with a temperature detection component, when the ambient temperature where the refrigerator 10 is located is less than or equal to the third threshold, an external temperature where the refrigerator 10 is located is relatively low (for example, less than or equal to 30 degrees), and an energy required to maintain a freezing effect of the freezing compartment 110 is small, the first directional valve 1130 works to make the third input port 710 in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the first capillary tube 1110, facilitating outputting the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520. When the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the external temperature where the refrigerator 10 is located is relatively high (for example, greater than 30 degrees), the first directional valve 1130 works to make the third input port 710 in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the second capillary tube 1120, facilitating outputting the second flow rate greater than the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520, and then delivering the second flow rate to the evaporator 700 for a rapid heat absorption and cooling to ensure the freezing effect of the refrigerator 10. This can further reduce power consumption, and improve energy efficiency while reducing energy consumption of the refrigerator 10. At the same time, the freezing effect of the refrigerator 10 is ensured and a condensation risk is reduced.

[0056] In some embodiments, the refrigerator 10 further comprises a temperature detection component (not shown) in communication with the control component 800, and the temperature detection component is disposed in the housing assembly 100 and configured to detect a magnitude of an ambient temperature where the refrigerator 10 is located. Thus, the control component 800 is facilitated to detect the magnitude of the ambient temperature where the refrigerator 10 is located in real time according to the temperature detection component, and timely control the flow regulation assembly 1100 to output the first flow rate or the second flow rate, so as to reduce a condensation risk as much as possible while reducing energy consumption of the refrigerator 10.

[0057] It should be noted that the temperature detection component includes but is not limited to an expansion temperature sensor, a thermal resistance temperature sensor, a thermoelectric temperature sensor, a photoelectric pyrometer, a radiation sensor, a colorimetric thermometer, etc.

[0058] As shown in Figures 6 to 8, in some embodiments, the annular tube 521 cooperates with the door frame 111 by a snap-fit. Thus, fixing the annular tube 521 to the door frame 111 is facilitated and is conducive to improving an assembly efficiency.

[0059] As shown in Figure 8, in some embodiments, the door frame 111 is provided with a first card slot 102, and the annular tube 521 is inserted in the first card slot 102. Thus, the annular tube 521 is inserted in the first card slot 102, so that the annular tube 521 is embedded in the door frame 111, facilitating a full utilization of a space of the door frame 111 to accommodate the annular tube 521, the two cooperate closely, a heat conduction efficiency is higher, and this is conducive to further reducing energy consumption of the refrigerator 10.

[0060] As shown in Figure 8, in some embodiments, the door frame 111 is provided with a flange 103, and the flange 103 is bent to form the first card slot 102. This is easy to implement and reduces assembly procedures of the door frame 111.

[0061] As shown in Figures 6 and 7, in some embodiments, the housing assembly 100 comprises a base 130, the door frame 111 and the compressor 200 are spaced on the base 130, and relative to the base 130, the top portion 101 is disposed above the compressor 200. The first dew removal tube 510 comprises two second tubes 512, the second tubes 512 are disposed at an acute angle with the base 130, and the two second tubes 512 are spaced on both sides of the freezing compartment 110 and in communication with both ends of the first tube 511 respectively. One of the second tubes 512 is connected to the second output port 420, and another one of the second tubes 512 is in communication with the second input portion. Thus, through the two second tubes 512 being spaced on both sides of the freezing compartment 110, a refrigerant output from the second output port 420 is delivered to the first tube 511 through one of the second tubes 512, and the first tube 511 is utilized to heat the top portion 101 of the freezing compartment 110. And another one of the second tubes 512 is utilized to deliver a refrigerant that has passed through the first tube 511 to the expansion valve 600. In this process, the second tubes 512 are disposed at an acute angle with the base 130, delivering a refrigerant obliquely upward to the first tube 511 and obliquely downward delivering a refrigerant to the expansion valve 600, which can effectively reduce a transmission path for delivering the refrigerant to the first tube 511, and is also conducive to reducing a thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation.

[0062] As shown in Figure 1, the door frame 111 and the compressor 200 are spaced on the base 130 along the X-axis direction.

[0063] As shown in Figures 7 and 9, in some embodiments, the second dew removal tube 520 further comprises a delivery tube 522 in communication with one end of the annular tube 521 and a return tube 523 in communication with another end of the annular tube 521, at least a portion of the delivery tube 522 and at least a portion of the return tube 523 are adjacent, and are disposed to pass between a lower side of the freezing compartment 110 and the base 130. Thus, a refrigerant output from the second output port 420 is delivered to the annular tube 521 through the delivery tube, and then a refrigerant that has passed through the annular tube 521 is delivered to the expansion valve 600 through the return tube 523. In this process, at least a portion of the delivery tube 522 and at least a portion of the return tube 523 are disposed between the lower side of the freezing compartment 110 and the base 130, which is conducive to utilizing the base 130 for heat dissipation, reducing a thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation.

[0064] In this process, at least a portion of the delivery tube 522 and at least a portion of the return tube 523 are adjacent, which is also conducive to improving a degree to which the annular tube 521 wraps the door frame 111, reducing the thermal load caused by dew removal to the refrigerator 10, and reducing energy consumption of the refrigerator 10.

[0065] Further, as shown in Figure 7, in some embodiments, at least a portion of the annular tube 521 is nested in the door frame 111, the door frame 111 is provided with a first notch 104 for avoiding the delivery tube 522 and the return tube 523, the base 130 is provided with a second notch 131 for avoiding the delivery tube 522 and the return tube 523, and the second notch 131 is disposed opposite to the first notch 104. Thus, the delivery tube 522 and the return tube 523 respectively pass through the first notch 104 and the second notch 131 to communicate with the annular tube 521, which is easy to implement and conducive to reducing an assembly difficulty of the second dew removal tube 520 and the door frame 111.

[0066] In combination with any of the above embodiments, as shown in Figures 6 and 8, in some embodiments, the housing assembly 100 further comprises a crossbeam 120 fixed to the top portion 101, the crossbeam 120 comprises a first clamping portion 121, the first clamping portion 121 is spaced from the top portion 101 along a height direction of the housing assembly 100, and the first tube 511 is disposed at the first clamping portion 121. Thus, the crossbeam 120 is fixed to the top portion 101, and the first tube 511 is disposed at the first clamping portion 121, so that the first tube 511 can be utilized to perform dew removal for the crossbeam 120 and the top portion 101. This improves a dew removal range of the first tube 511 while reducing energy consumption of the refrigerator 10, further reducing a condensation risk of the refrigerator 10.

[0067] Optionally, a material of the crossbeam 120 is metal. Thus, the crossbeam 120 has a good thermal conductivity coefficient, facilitating a transfer of heat from the first tube 511 to the top portion 101, improving a dew removal efficiency of utilizing the first tube 511 to perform dew removal for the crossbeam 120 and the top portion 101. This can reduce the thermal load caused by dew removal to the refrigerator 10 and reduce energy consumption of the refrigerator 10.

[0068] As shown in Figure 8, in some embodiments, the first clamping portion 121 is provided with a second card slot 1211, and the first tube 511 is inserted in the second card slot 1211. Thus, this is easy to implement and facilitates installing the first tube 511 on the crossbeam 120.

[0069] Further, as shown in Figure 8, in some embodiments, the crossbeam 120 further comprises a third card slot 1212 cooperating with the top portion 101 by a snap-fit, the top portion 101 cooperates with an inner sidewall of the third card slot 1212 to form a clamping hole 1213, and at least a portion of the annular tube 521 is disposed to pass through the clamping hole 1213. Thus, through the third card slot 1212 cooperating with the top portion 101 by the snap-fit, the crossbeam 120 is fixed to the top portion 101, and the annular tube 521 is disposed inside the clamping hole 1213, so that the annular tube 521 can be utilized to perform dew removal for the crossbeam 120 and the top portion 101. This improves a dew removal range of the annular tube 521 while reducing energy consumption of the refrigerator 10, further reducing a condensation risk of the refrigerator 10.

[0070] As shown in Figures 6, 9, and 10, in some embodiments, the refrigerator 10 further comprises a first air cooler 900, and the first air cooler 900 is disposed in the housing assembly 100 and configured to perform heat dissipation for the condenser 300. Thus, the first air cooler 900 is utilized to actively perform heat dissipation for the condenser 300 to improve an effect of the condenser 300 condensing a refrigerant.

[0071] As shown in Figures 6, 9, and 11, in some embodiments, the refrigerator 10 further comprises a drying assembly 1000 configured to dry a refrigerant, and another end of the first dew removal tube 510 and another end of the second dew removal tube 520 are in communication with the second input portion through the drying assembly 1000 respectively. Thus, this facilitates achieving a gas-liquid separation of a refrigerant and protecting the compressor 200.

[0072] Optionally, a specific implementation of the drying assembly 1000 includes a gas-liquid separator.

[0073] It should be noted that the "first tube 511" may be "a portion of the first dew removal tube 510", that is, the "first tube 511" and "other portions of the first dew removal tube 510, such as the second tube 512" are manufactured by an integral molding; the "first tube 511" may also be an independent component separable from "other portions of the first dew removal tube 510, such as the second tube 512", that is, the "first tube 511" may be manufactured independently and then combined with "other portions of the first dew removal tube 510, such as the second tube 512" to form a whole.

[0074] Equivalently, "a certain tube", "a certain portion" may be a portion of a corresponding "component", that is, "the certain tube", "the certain portion" and "other portions of the component" are manufactured by an integral molding; "the certain tube", "the certain portion" may also be an independent component separable from "other portions of the component", that is, "the certain tube", "the certain portion" may be manufactured independently and then combined with "other portions of the component" to form a whole. An expression of the above "a certain tube", "a certain portion" in the present application is only one embodiment for convenience of reading, and is not a limitation of a protection scope of the present application. As long as the above features are included and a function is the same, it should be understood as an equivalent technical solution of the present application.

[0075] It should be noted that the "crossbeam 120" may be one component of a "housing assembly 100" module, that is, assembled with "other components of the housing assembly 100" into a module for a modular assembly; the "crossbeam 120" may also be relatively independent from "other components of the housing assembly 100" and can be installed separately, that is, the "crossbeam 120" can constitute a whole with "other components of the housing assembly 100" in this device.

[0076] Equivalently, components included in "units", "assemblies", "mechanisms", and "devices" of the present application may also be flexibly combined, that is, the components may be produced modularly according to actual conditions as an independent module for a modular assembly; the components may also be assembled separately to constitute a module in this device. A division of the above components in the present application is only one embodiment for convenience of reading, and is not a limitation of a protection scope of the present application. As long as the above components are included and a function is the same, it should be understood as an equivalent technical solution of the present application.

[0077] It should be noted that there may be various specific implementations of the control valve assembly, including but not limited to a three-way valve, a four-way valve, or a two-way valve arranged in parallel, etc.

[0078] In some embodiments, the control valve assembly comprises a three-way solenoid valve.

[0079] It should be noted that there may be various specific implementations of the first directional valve, including but not limited to a three-way valve, a four-way valve, or a two-way valve arranged in parallel, etc.

[0080] In some embodiments, the first directional valve comprises a three-way solenoid valve.

[0081] In a description of the present application, it should be understood that orientations or positional relationships indicated by terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, rather than indicating or implying that a referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations of the present application.

[0082] In addition, terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying a relative importance or implicitly indicating a number of indicated technical features. Thus, a feature defined with "first", "second", etc. may explicitly or implicitly include at least one such feature. In a description of the present application, a meaning of "multiple" is at least two, for example two, three, etc., unless otherwise clearly and specifically defined.

[0083] In the present application, unless otherwise clearly specified and defined, terms "install", "connect", "connection", "fix", etc. should be understood broadly. For example, a connection may be a fixed connection, a detachable connection, or integral; a connection may be a mechanical connection or an electrical connection; a connection may be a direct connection or an indirect connection through an intermediate medium, or may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. For a person of ordinary skill in the art, specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0084] In the present application, unless otherwise clearly specified and defined, a first feature being "on" or "under" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or diagonally above the second feature, or merely indicates that a horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature may be that the first feature is directly below or diagonally below the second feature, or merely indicates that a horizontal height of the first feature is lower than that of the second feature.

[0085] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on", or "mounted on" another element, the element may be directly on the other element or there may also be an intervening element present. When an element is considered to be "connected" to another element, the element may be directly connected to the other element or there may be an intervening element present simultaneously. Further, when an element is considered to be "fixedly connected" to another element, the two may be fixed by a detachable connection method, or may be fixed by a non-detachable connection, such as a sleeving, a snap-fitting, an integral molding fixation, a welding, etc., which can be achieved in a conventional technology and will not be described redundantly here.

[0086] Technical features of the above embodiments may be combined arbitrarily. To make a description concise, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in a combination of these technical features, the combination should all be considered as within a scope recorded in this description.

[0087] The above embodiments merely express several implementation modes of the present application, and descriptions thereof are relatively specific and detailed, but should not be understood as limitations on a scope of an invention patent. It should be pointed out that for a person of ordinary skill in the art, without departing from an inventive concept of the present application, several modifications and improvements may also be made, and these all belong to a protection scope of the present application.

Examples

Embodiment Construction

[0033]In order to make objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to drawings and specific embodiments. It should be understood that specific embodiments described herein are only used to explain the present application and do not limit a protection scope of the present application.

[0034]Unless otherwise defined, all technical and scientific terms used herein have same meanings as commonly understood by a person of ordinary skill in a technical field to which the present application belongs. Terms used herein in a description of the present application are only for a purpose of describing specific embodiments and are not intended to limit the present application.

[0035]Reference to any related art in the description is not and should not be regarded as an admission or in any form an implication that such related art forms part of common general knowledge in a region o...

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims priority to Chinese Application No. 202311870353.2, filed on December 29, 2023, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD

[0002] The present application is in the field of refrigeration technology, and particularly relates to a refrigerator.BACKGROUND

[0003] With a development of social economy and an improvement of people's living standards, a refrigerator has also become an indispensable household appliance in people's daily lives. During operation of a refrigerator, condensation is easily generated and wets the refrigerator. Therefore, most refrigerators utilize a dew removal structure to reduce or avoid condensation on the refrigerator. However, a traditional dew removal structure is not conducive to reducing energy consumption of a refrigerator.SUMMARY

[0004] The present application provides a refrigerator.

[0005] A technical solution thereof is as follows.

[0006] According to a first aspect of embodiments of the present application, a refrigerator is provided, comprising a housing assembly, a compressor, a condenser, a control valve assembly, a dew removal assembly, an expansion valve, an evaporator, and a control component. The housing assembly comprises a freezing compartment, the freezing compartment comprises a door frame, and the door frame comprises a top portion. The compressor is spaced from the door frame and disposed in the housing assembly, and the compressor comprises a first input portion and a first output portion. The condenser is disposed in the housing assembly, and the condenser comprises a first output port and a first input port in communication with the first output portion. The control valve assembly comprises a second input port in communication with the first input port and at least two second output ports. The dew removal assembly comprises a first dew removal tube and a second dew removal tube, one end of the first dew removal tube is connected to one of the second output ports, the first dew removal tube comprises a first tube, the first tube extends along a length direction of the top portion, one end of the second dew removal tube is connected to another one of the second output ports, the second dew removal tube comprises an annular tube, and the annular tube is disposed around the door frame. The expansion valve comprises a second input portion and a second output portion, and the second input portion is in communication with another end of the first dew removal tube and another end of the second dew removal tube respectively. The evaporator is disposed in the housing assembly, the evaporator comprises a third input port and a third output port in communication with the third input port, and the third input port is in communication with the second output portion. The control component is in communication with the compressor and the control valve assembly. When an ambient humidity where the refrigerator is located is less than or equal to a first threshold, the control component controls the control valve assembly to make the first dew removal tube in communication with the first input port and the second dew removal tube closed from the first input port. When the ambient humidity where the refrigerator is located is greater than the first threshold and less than or equal to a second threshold, the control component controls the control valve assembly to make the second dew removal tube in communication with the first input port and the first dew removal tube closed from the first input port.

[0007] The technical solutions provided by the embodiments of the present application at least include the following beneficial effects.

[0008] The refrigerator is provided with the first dew removal tube and the second dew removal tube, and the first tube is made to extend along the length direction of the top portion, and the annular tube is disposed around the door frame. The control component is facilitated to control the first dew removal tube to be conductive or the second dew removal tube to be conductive for dew removal according to different humidity. Specifically, when the ambient humidity where the refrigerator is located is less than or equal to the first threshold, the control component controls the control valve assembly, so that the second output port connected to the first dew removal tube is in communication with the second input port, while other second output ports are not in communication with the second input port, and thus the first dew removal tube is in communication with the first input port, and the second dew removal tube is closed from the first input port. At this time, a refrigerant output by the compressor enters the condenser for condensation, then enters the first dew removal tube, and heats the top portion of the freezing compartment through the first tube. In this process, dew removal may be performed by using the first tube with a small dew removal heating area, which can reduce a thermal load caused by dew removal to the refrigerator, thereby reducing energy consumption of the refrigerator during operation. When the ambient humidity where the refrigerator is located is greater than the first threshold and less than or equal to the second threshold, the control component controls the control valve assembly, so that the second output port connected to the second dew removal tube is in communication with the second input port, while other second output ports are not in communication with the second input port, and thus the second dew removal tube is in communication with the first input port, and the first dew removal tube is closed from the first input port. At this time, a condensation risk of the refrigerator increases, a refrigerant output by the compressor enters the condenser for condensation, then enters the second dew removal tube, and increases a heating area through the annular tube and heats the door frame of the freezing compartment (including a top portion space thereof), thereby effectively avoiding condensation near the freezing compartment. Thus, the refrigerator has a low dew removal energy consumption, which is conducive to reducing energy consumption of the refrigerator.

[0009] The technical solutions of the present application are further described below.

[0010] In one embodiment, when the ambient humidity where the refrigerator is located is greater than the second threshold, the control component controls the control valve assembly to make the first dew removal tube and the second dew removal tube in communication with the first input port respectively.

[0011] In one embodiment, the refrigerator further comprises a humidity detection component in communication with the control component, and the humidity detection component is disposed in the housing assembly and configured to detect a magnitude of an ambient humidity where the refrigerator is located.

[0012] In one embodiment, the annular tube cooperates with the door frame by a snap-fit.

[0013] In one embodiment, the door frame is provided with a first card slot, and the annular tube is inserted in the first card slot.

[0014] In one embodiment, the door frame is provided with a flange, and the flange is bent to form the first card slot.

[0015] In one embodiment, the housing assembly comprises a base, the door frame and the compressor are spaced on the base, and relative to the base, the top portion is disposed above the compressor.

[0016] The first dew removal tube comprises two second tubes, the second tubes are disposed at an acute angle with the base, and the two second tubes are spaced on both sides of the freezing compartment and in communication with both ends of the first tube respectively. One of the second tubes is connected to the second output port, and another one of the second tubes is in communication with the second input portion.

[0017] And / or, the second dew removal tube further comprises a delivery tube in communication with one end of the annular tube and a return tube in communication with another end of the annular tube, at least a portion of the delivery tube and at least a portion of the return tube are adjacent, and are disposed to pass between a lower side of the freezing compartment and the base.

[0018] In one embodiment, at least a portion of the annular tube is nested in the door frame, the door frame is provided with a first notch for avoiding the delivery tube and the return tube, the base is provided with a second notch for avoiding the delivery tube and the return tube, and the second notch is disposed opposite to the first notch.

[0019] In one embodiment, the housing assembly further comprises a crossbeam fixed to the top portion, the crossbeam comprises a first clamping portion, the first clamping portion is spaced from the top portion along a height direction of the housing assembly, and the first tube is disposed at the first clamping portion.

[0020] In one embodiment, the first clamping portion is provided with a second card slot, and the first tube is inserted in the second card slot.

[0021] In one embodiment, the crossbeam further comprises a third card slot cooperating with the top portion by a snap-fit, the top portion cooperates with an inner sidewall of the third card slot to form a clamping hole, and at least a portion of the annular tube is disposed to pass through the clamping hole.

[0022] In one embodiment, the refrigerator further comprises a first air cooler, and the first air cooler is disposed in the housing assembly and configured to perform heat dissipation for the condenser.

[0023] And / or, the refrigerator further comprises a drying assembly configured to dry a refrigerant, and another end of the first dew removal tube and another end of the second dew removal tube are in communication with the second input portion through the drying assembly respectively.

[0024] In one embodiment, the refrigerator further comprises a flow regulation assembly, and another end of the first dew removal tube and another end of the second dew removal tube are in communication with the third input port through the flow regulation assembly.

[0025] The flow regulation assembly is in communication with the control component, when an ambient temperature where the refrigerator is located is less than or equal to a third threshold, the flow regulation assembly outputs a first flow rate. When the ambient temperature where the refrigerator is located is greater than the third threshold, the flow regulation assembly outputs a second flow rate greater than the first flow rate.

[0026] In one embodiment, the refrigerator further comprises a flow regulation assembly, the flow regulation assembly comprises a first capillary tube configured to output the first flow rate, a second capillary tube having a flow area larger than that of the first capillary tube, and a first directional valve in communication with the control component, one end of the first capillary tube and one end of the second capillary tube are in communication with an output port of the first directional valve respectively, another end of the first capillary tube and another end of the second capillary tube are in communication with the third input port respectively, and an input port of the first directional valve is in communication with another end of the first dew removal tube and another end of the second dew removal tube respectively.

[0027] When the ambient temperature where the refrigerator is located is less than or equal to the third threshold, the third input port is in communication with the first dew removal tube and / or the second dew removal tube through the first capillary tube; when the ambient temperature where the refrigerator is located is greater than the third threshold, the third input port is in communication with the first dew removal tube and / or the second dew removal tube through the second capillary tube.

[0028] In one embodiment, the refrigerator further comprises a temperature detection component in communication with the control component, and the temperature detection component is disposed in the housing assembly and configured to detect a magnitude of an ambient temperature where the refrigerator is located.

[0029] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present application.BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings forming a part of the present application are used to provide further understanding of the present application, and schematic embodiments of the present application and descriptions thereof are used to explain the present application, and do not constitute an improper limitation of the present application.

[0031] In order to more clearly explain technical solutions in embodiments of the present application, drawings needed to be used in a description of the embodiments will be briefly introduced below. Obviously, drawings in the following description are only some embodiments of the present application. For a person of ordinary skill in the art, other drawings may also be obtained according to these drawings without creative work. Figure 1 is a structural schematic diagram of a refrigerator shown in an embodiment. Figure 2 is a schematic diagram of a dew removal principle of the refrigerator shown in Figure 1. Figure 3 is a working schematic diagram of the refrigerator shown in Figure 2 with a first dew removal tube open and a second dew removal tube closed. Figure 4 is a working schematic diagram of the refrigerator shown in Figure 2 with the second dew removal tube open and the first dew removal tube closed. Figure 5 is a working schematic diagram of the refrigerator shown in Figure 2 with both a first capillary tube and a second capillary tube open. Figure 6 is a partial structural schematic diagram of the refrigerator shown in Figure 1. Figure 7 is an enlarged schematic diagram of a partial structure of a base and a freezing compartment of the refrigerator shown in Figure 6. Figure 8 is an enlarged schematic diagram of a partial structure of a door frame and a crossbeam shown in Figure 6. Figure 9 is a partial structural schematic diagram of the refrigerator shown in Figure 6 after removing the freezing compartment and part of a base. Figure 10 is a locally enlarged schematic diagram of a region A shown in Figure 9. Figure 11 is a locally enlarged schematic diagram of a region B shown in Figure 10.

[0032] Description of reference numerals: 10, refrigerator; 100, housing assembly; 110, freezing compartment; 111, door frame; 101, top portion; 102, first card slot; 103, flange; 104, first notch; 120, crossbeam; 121, first clamping portion; 1211, second card slot; 1212, third card slot; 1213, clamping hole; 130, base; 131, second notch; 200, compressor; 210, first input portion; 220, first output portion; 300, condenser; 310, first output port; 320, first input port; 400, control valve assembly; 410, second input port; 420, second output port; 500, dew removal assembly; 510, first dew removal tube; 511, first tube; 512, second tube; 520, second dew removal tube; 521, annular tube; 522, delivery tube; 523, return tube; 600, expansion valve; 610, second input portion; 620, second output portion; 700, evaporator; 710, third input port; 720, third output port; 800, control component; 900, first air cooler; 1000, drying assembly; 1100, flow regulation assembly; 1110, first capillary tube; 1120, second capillary tube; 1130, first directional valve.DETAILED DESCRIPTION OF EMBODIMENTS

[0033] In order to make objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to drawings and specific embodiments. It should be understood that specific embodiments described herein are only used to explain the present application and do not limit a protection scope of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have same meanings as commonly understood by a person of ordinary skill in a technical field to which the present application belongs. Terms used herein in a description of the present application are only for a purpose of describing specific embodiments and are not intended to limit the present application.

[0035] Reference to any related art in the description is not and should not be regarded as an admission or in any form an implication that such related art forms part of common general knowledge in a region of application or any other jurisdiction, or that such related art can be reasonably understood and regarded as relevant by a person of ordinary skill in the art.

[0036] A refrigerator, as a piece of refrigeration equipment, occupies an important position in people's lives and brings many conveniences to people's lives. Currently, there are many types and brands of refrigerators, making many refrigerator products available for consumers to choose from. How to gain consumer favor and enhance product competitiveness becomes increasingly important. Among refrigerator products with similar functions or performance, a refrigerator with a lower energy consumption is more likely to attract a consumer to make a purchase. Therefore, how to reduce energy consumption of a refrigerator has become an increasingly important issue for refrigerator manufacturers.

[0037] Currently, a refrigerator is prone to generate condensation during operation and wet or dirty the refrigerator, which is not conducive to improving a cleanliness of a refrigerator operating environment. Therefore, most refrigerators utilize a dew removal structure to reduce or avoid condensation on the refrigerator.

[0038] In a related art, some refrigerators perform dew removal by providing a dew removal tube in a refrigerating compartment and a freezing compartment respectively, which can reduce or avoid condensation on a refrigerator. However, when a refrigerator works, a traditional dew removal tube structure generates a large thermal load around a freezing compartment, which greatly increases power consumption of the refrigerator and is not conducive to reducing energy consumption of the refrigerator.

[0039] Based on this, the present application provides a refrigerator, which by optimizing a dew removal structure, has a low dew removal energy consumption, and is thus conducive to reducing energy consumption of the refrigerator.

[0040] To better understand the refrigerator of the present application, a further explanation is provided below with reference to the drawings.

[0041] Figures 1 to 4 are structural schematic diagrams of a refrigerator shown in some embodiments. Figure 1 is a structural schematic diagram of a refrigerator shown in an embodiment. Figure 2 is a schematic diagram of a dew removal principle of the refrigerator shown in Figure 1. Figure 3 is a working schematic diagram of the refrigerator shown in Figure 2 with a first dew removal tube open and a second dew removal tube closed. Figure 4 is a working schematic diagram of the refrigerator shown in Figure 2 with the second dew removal tube open and the first dew removal tube closed. In addition, as shown in Figure 1, a thickness direction of the refrigerator is an X-axis direction, a width direction of the refrigerator is a Y-axis direction, and a height direction of the refrigerator is a Z-axis direction.

[0042] As shown in Figures 1 to 4, in some embodiments, a refrigerator 10 is provided, comprising a housing assembly 100, a compressor 200, a condenser 300, a control valve assembly 400, a dew removal assembly 500, an expansion valve 600, an evaporator 700, and a control component 800. The housing assembly 100 comprises a freezing compartment 110, the freezing compartment 110 comprises a door frame 111, and the door frame 111 comprises a top portion 101. The compressor 200 is spaced from the door frame 111 and disposed in the housing assembly 100, and the compressor 200 comprises a first input portion 210 and a first output portion 220. The condenser 300 is disposed in the housing assembly 100, and the condenser 300 comprises a first output port 310 and a first input port 320 in communication with the first output portion 220. The control valve assembly 400 comprises a second input port 410 in communication with the first input port 320 and at least two second output ports 420. The dew removal assembly 500 comprises a first dew removal tube 510 and a second dew removal tube 520. One end of the first dew removal tube 510 is connected to one of the second output ports 420, the first dew removal tube 510 comprises a first tube 511, the first tube 511 extends along a length direction of the top portion 101. One end of the second dew removal tube 520 is connected to another one of the second output ports 420, the second dew removal tube 520 comprises an annular tube 521, and the annular tube 521 is disposed around the door frame 111. The expansion valve 600 comprises a second input portion 610 and a second output portion 620, and the second input portion 610 is in communication with another end of the first dew removal tube 510 and another end of the second dew removal tube 520 respectively. The evaporator 700 is disposed in the housing assembly 100, the evaporator 700 comprises a third input port 710 and a third output port 720 in communication with the third input port 710, and the third input port 710 is in communication with the second output portion 620. The control component 800 is in communication with the compressor 200 and the control valve assembly 400. When an ambient humidity where the refrigerator 10 is located is less than or equal to a first threshold, the control component 800 controls the control valve assembly 400 to make the first dew removal tube 510 in communication with the first input port 320 and the second dew removal tube 520 closed from the first input port 320. When the ambient humidity where the refrigerator 10 is located is greater than the first threshold and less than or equal to a second threshold, the control component 800 controls the control valve assembly 400 to make the second dew removal tube 520 in communication with the first input port 320 and the first dew removal tube 510 closed from the first input port 320.

[0043] During an operation of the refrigerator 10, the compressor 200 works and delivers a high-temperature and high-pressure gaseous refrigerant to the first input port 320 through the first output portion 220. The gaseous refrigerant is condensed by the condenser 300 into a medium-temperature and high-pressure gaseous refrigerant, and then the gaseous refrigerant is delivered from the first output port 310 to a dew removal tube. The dew removal tube is utilized to heat an air near the dew removal tube, thereby reducing a condensation risk. In this process, the refrigerant is further cooled and then enters the expansion valve 600. Through a throttling action of the expansion valve 600, a pressure and a temperature of the refrigerant are further reduced, and a liquid refrigerant flows out from the second output portion. The liquid refrigerant flows from the second output portion into the evaporator 700, the refrigerant absorbs heat in the evaporator 700, causing the refrigerant to become gaseous and flow out from the third output port 720, and enters the compressor 200 through the first input portion 210. Through such a circulation, the evaporator 700 continuously absorbs heat to reduce a temperature of the freezing compartment 110, facilitating use of the freezing compartment 110 for a food freezing preservation.

[0044] Further, the refrigerator 10 is provided with the first dew removal tube 510 and the second dew removal tube 520, and the first tube 511 is made to extend along the length direction of the top portion 101, and the annular tube 521 is disposed around the door frame 111. The control component 800 is facilitated to control the first dew removal tube 510 to be conductive or the second dew removal tube 520 to be conductive for dew removal according to different humidity. Specifically, when the ambient humidity where the refrigerator 10 is located is less than or equal to the first threshold (as shown in Figure 3), the control component 800 controls the control valve assembly 400, so that the second output port 420 connected to the first dew removal tube 510 is in communication with the second input port 410, while other second output ports 420 are not in communication with the second input port 410, and thus the first dew removal tube is in communication with the first input port 320, and the second dew removal tube 520 is closed from the first input port 320. At this time, a refrigerant output by the compressor 200 enters the condenser 300 for condensation, then enters the first dew removal tube 510, and heats the top portion 101 of the freezing compartment 110 (for example, heating a middle beam) through the first tube 511. In this process, dew removal may be performed by using the first tube 511 with a small dew removal heating area, which can reduce a thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation. When the ambient humidity where the refrigerator 10 is located is greater than the first threshold and less than or equal to the second threshold (as shown in Figure 4), the control component 800 controls the control valve assembly 400, so that the second output port 420 connected to the second dew removal tube 520 is in communication with the second input port 410, while other second output ports 420 are not in communication with the second input port 410, and thus the second dew removal tube is in communication with the first input port 320, and the first dew removal tube 510 is closed from the first input port 320. At this time, the condensation risk of the refrigerator 10 increases, a refrigerant output by the compressor 200 enters the condenser 300 for condensation, then enters the second dew removal tube 520, and increases a heating area through the annular tube 521 and heats the door frame 111 of the freezing compartment 110 (including a top portion 101 space thereof), thereby effectively avoiding condensation near the freezing compartment 110. Thus, by optimizing a dew removal structure, the refrigerator 10 has a low dew removal energy consumption, which is conducive to reducing energy consumption of the refrigerator 10.

[0045] From the above description, it can be seen that the refrigerator 10 provided by the present application can meet dew removal requirements under different humidity environments. When an ambient humidity where the refrigerator 10 is located is relatively low, the first dew removal tube 510 is utilized for dew removal, which can reduce the thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation and saving electrical energy. At the same time, condensation near the top portion 101 of the freezing compartment 110 can also be effectively avoided (for example, preventing condensation on a middle beam and a freezing upper door seal). When the ambient humidity where the refrigerator 10 is located is relatively high, the second dew removal tube 520 is utilized for dew removal, and the freezing compartment 110 is heated through a reasonable arrangement of the annular tube 521, which can also reduce the thermal load caused by dew removal to the refrigerator 10. Thus, whether in different working regions or when seasons change, the refrigerator 10 provided by the present application can reduce energy consumption while also having a good dew removal performance.

[0046] It should be noted that "the first tube 511 extends along the length direction of the top portion 101" includes at least a portion of the first tube 511 being directly installed on the top portion 101, or the first tube 511 being indirectly disposed on the top portion 101, as long as the top portion 101 can be heated for dew removal. As shown in Figure 1, along the Z-axis direction, the top portion 101 is an upper frame of the door frame 111, and the length direction of the top portion 101 is the Y-axis direction.

[0047] In some embodiments, a length direction of the first tube 511 is disposed in a same direction as the length direction of the top portion 101.

[0048] It should be noted that "the annular tube 521 is disposed around the door frame 111" includes the annular tube 521 being disposed to wrap around an entire door frame 111, or the annular tube 521 being disposed to wrap around a portion of the door frame 111. As shown in Figure 1, the compressor 200 and the door frame 111 are spaced in the housing assembly 100 along the X-axis direction.

[0049] It should be noted that a value of the first threshold can be flexibly set including but not limited to 60%, 65%, 70%, 75%, etc. A value of the second threshold can be flexibly set including but not limited to 80%, 85%, 90%, 95%, etc.

[0050] Optionally, the first threshold is 75%. The second threshold is 90%.

[0051] As shown in Figure 5, in some embodiments, when the ambient humidity where the refrigerator 10 is located is greater than the second threshold, the control component 800 controls the control valve assembly 400 to make the first dew removal tube 510 and the second dew removal tube 520 in communication with the first input port 320 respectively. Thus, even when a humidity of an operating environment of the refrigerator 10 is very high, a dew removal of the refrigerator 10 can be achieved through a joint operation of the first dew removal tube 510 and the second dew removal tube 520.

[0052] Further, in some embodiments, the refrigerator 10 further comprises a humidity detection component (not shown) in communication with the control component 800, and the humidity detection component is disposed in the housing assembly 100 and configured to detect a magnitude of an ambient humidity where the refrigerator 10 is located. Thus, the control component 800 is facilitated to detect the magnitude of the ambient humidity where the refrigerator 10 is located in real time according to the humidity detection component, and timely control the control valve assembly 400 to switch between the first dew removal tube 510 and the second dew removal tube 520, reducing a condensation risk while reducing energy consumption of the refrigerator 10.

[0053] It should be noted that the humidity detection component includes but is not limited to an extensible hygrometer, a wet and dry bulb thermometer, a dew point thermometer, and a resistive hygrometer, etc.

[0054] As shown in Figure 2, in some embodiments, the refrigerator 10 further comprises a flow regulation assembly 1100, and another end of the first dew removal tube 510 and another end of the second dew removal tube 520 are in communication with the third input port 710 through the flow regulation assembly 1100. The flow regulation assembly 1100 is in communication with the control component 800, when an ambient temperature where the refrigerator 10 is located is less than or equal to a third threshold, the flow regulation assembly 1100 outputs a first flow rate. When the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the flow regulation assembly 1100 outputs a second flow rate greater than the first flow rate. Thus, the control component 800 is in communication with a temperature detection component, when the ambient temperature where the refrigerator 10 is located is less than or equal to the third threshold, an external temperature is relatively low, and an energy required to maintain a freezing effect of the freezing compartment 110 is small, the flow regulation assembly 1100 outputs the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520. When the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the external temperature is relatively high, to maintain the freezing effect of the freezing compartment 110, the flow regulation assembly 1100 needs to output the second flow rate greater than the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520, and then deliver the second flow rate to the evaporator 700 for a rapid heat absorption and cooling. This can further reduce power consumption, improve energy efficiency, and ensure the freezing effect of the refrigerator 10.

[0055] As shown in Figures 2 and 4, and in combination with Figure 11, in some embodiments, the flow regulation assembly 1100 comprises a first capillary tube 1110 configured to output the first flow rate, a second capillary tube 1120 having a flow area larger than that of the first capillary tube 1110, and a first directional valve 1130 in communication with the control component 800, one end of the first capillary tube 1110 and one end of the second capillary tube 1120 are in communication with an output port of the first directional valve 1130 respectively, another end of the first capillary tube 1110 and another end of the second capillary tube 1120 are in communication with the third input port 710 respectively, and an input port of the first directional valve 1130 is in communication with another end of the first dew removal tube 510 and another end of the second dew removal tube 520 respectively. When the ambient temperature where the refrigerator 10 is located is less than or equal to the third threshold, the third input port 710 is in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the first capillary tube 1110; when the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the third input port 710 is in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the second capillary tube 1120. Thus, the control component 800 is in communication with a temperature detection component, when the ambient temperature where the refrigerator 10 is located is less than or equal to the third threshold, an external temperature where the refrigerator 10 is located is relatively low (for example, less than or equal to 30 degrees), and an energy required to maintain a freezing effect of the freezing compartment 110 is small, the first directional valve 1130 works to make the third input port 710 in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the first capillary tube 1110, facilitating outputting the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520. When the ambient temperature where the refrigerator 10 is located is greater than the third threshold, the external temperature where the refrigerator 10 is located is relatively high (for example, greater than 30 degrees), the first directional valve 1130 works to make the third input port 710 in communication with the first dew removal tube 510 and / or the second dew removal tube 520 through the second capillary tube 1120, facilitating outputting the second flow rate greater than the first flow rate to the first dew removal tube 510 and / or the second dew removal tube 520, and then delivering the second flow rate to the evaporator 700 for a rapid heat absorption and cooling to ensure the freezing effect of the refrigerator 10. This can further reduce power consumption, and improve energy efficiency while reducing energy consumption of the refrigerator 10. At the same time, the freezing effect of the refrigerator 10 is ensured and a condensation risk is reduced.

[0056] In some embodiments, the refrigerator 10 further comprises a temperature detection component (not shown) in communication with the control component 800, and the temperature detection component is disposed in the housing assembly 100 and configured to detect a magnitude of an ambient temperature where the refrigerator 10 is located. Thus, the control component 800 is facilitated to detect the magnitude of the ambient temperature where the refrigerator 10 is located in real time according to the temperature detection component, and timely control the flow regulation assembly 1100 to output the first flow rate or the second flow rate, so as to reduce a condensation risk as much as possible while reducing energy consumption of the refrigerator 10.

[0057] It should be noted that the temperature detection component includes but is not limited to an expansion temperature sensor, a thermal resistance temperature sensor, a thermoelectric temperature sensor, a photoelectric pyrometer, a radiation sensor, a colorimetric thermometer, etc.

[0058] As shown in Figures 6 to 8, in some embodiments, the annular tube 521 cooperates with the door frame 111 by a snap-fit. Thus, fixing the annular tube 521 to the door frame 111 is facilitated and is conducive to improving an assembly efficiency.

[0059] As shown in Figure 8, in some embodiments, the door frame 111 is provided with a first card slot 102, and the annular tube 521 is inserted in the first card slot 102. Thus, the annular tube 521 is inserted in the first card slot 102, so that the annular tube 521 is embedded in the door frame 111, facilitating a full utilization of a space of the door frame 111 to accommodate the annular tube 521, the two cooperate closely, a heat conduction efficiency is higher, and this is conducive to further reducing energy consumption of the refrigerator 10.

[0060] As shown in Figure 8, in some embodiments, the door frame 111 is provided with a flange 103, and the flange 103 is bent to form the first card slot 102. This is easy to implement and reduces assembly procedures of the door frame 111.

[0061] As shown in Figures 6 and 7, in some embodiments, the housing assembly 100 comprises a base 130, the door frame 111 and the compressor 200 are spaced on the base 130, and relative to the base 130, the top portion 101 is disposed above the compressor 200. The first dew removal tube 510 comprises two second tubes 512, the second tubes 512 are disposed at an acute angle with the base 130, and the two second tubes 512 are spaced on both sides of the freezing compartment 110 and in communication with both ends of the first tube 511 respectively. One of the second tubes 512 is connected to the second output port 420, and another one of the second tubes 512 is in communication with the second input portion. Thus, through the two second tubes 512 being spaced on both sides of the freezing compartment 110, a refrigerant output from the second output port 420 is delivered to the first tube 511 through one of the second tubes 512, and the first tube 511 is utilized to heat the top portion 101 of the freezing compartment 110. And another one of the second tubes 512 is utilized to deliver a refrigerant that has passed through the first tube 511 to the expansion valve 600. In this process, the second tubes 512 are disposed at an acute angle with the base 130, delivering a refrigerant obliquely upward to the first tube 511 and obliquely downward delivering a refrigerant to the expansion valve 600, which can effectively reduce a transmission path for delivering the refrigerant to the first tube 511, and is also conducive to reducing a thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation.

[0062] As shown in Figure 1, the door frame 111 and the compressor 200 are spaced on the base 130 along the X-axis direction.

[0063] As shown in Figures 7 and 9, in some embodiments, the second dew removal tube 520 further comprises a delivery tube 522 in communication with one end of the annular tube 521 and a return tube 523 in communication with another end of the annular tube 521, at least a portion of the delivery tube 522 and at least a portion of the return tube 523 are adjacent, and are disposed to pass between a lower side of the freezing compartment 110 and the base 130. Thus, a refrigerant output from the second output port 420 is delivered to the annular tube 521 through the delivery tube, and then a refrigerant that has passed through the annular tube 521 is delivered to the expansion valve 600 through the return tube 523. In this process, at least a portion of the delivery tube 522 and at least a portion of the return tube 523 are disposed between the lower side of the freezing compartment 110 and the base 130, which is conducive to utilizing the base 130 for heat dissipation, reducing a thermal load caused by dew removal to the refrigerator 10, thereby reducing energy consumption of the refrigerator 10 during operation.

[0064] In this process, at least a portion of the delivery tube 522 and at least a portion of the return tube 523 are adjacent, which is also conducive to improving a degree to which the annular tube 521 wraps the door frame 111, reducing the thermal load caused by dew removal to the refrigerator 10, and reducing energy consumption of the refrigerator 10.

[0065] Further, as shown in Figure 7, in some embodiments, at least a portion of the annular tube 521 is nested in the door frame 111, the door frame 111 is provided with a first notch 104 for avoiding the delivery tube 522 and the return tube 523, the base 130 is provided with a second notch 131 for avoiding the delivery tube 522 and the return tube 523, and the second notch 131 is disposed opposite to the first notch 104. Thus, the delivery tube 522 and the return tube 523 respectively pass through the first notch 104 and the second notch 131 to communicate with the annular tube 521, which is easy to implement and conducive to reducing an assembly difficulty of the second dew removal tube 520 and the door frame 111.

[0066] In combination with any of the above embodiments, as shown in Figures 6 and 8, in some embodiments, the housing assembly 100 further comprises a crossbeam 120 fixed to the top portion 101, the crossbeam 120 comprises a first clamping portion 121, the first clamping portion 121 is spaced from the top portion 101 along a height direction of the housing assembly 100, and the first tube 511 is disposed at the first clamping portion 121. Thus, the crossbeam 120 is fixed to the top portion 101, and the first tube 511 is disposed at the first clamping portion 121, so that the first tube 511 can be utilized to perform dew removal for the crossbeam 120 and the top portion 101. This improves a dew removal range of the first tube 511 while reducing energy consumption of the refrigerator 10, further reducing a condensation risk of the refrigerator 10.

[0067] Optionally, a material of the crossbeam 120 is metal. Thus, the crossbeam 120 has a good thermal conductivity coefficient, facilitating a transfer of heat from the first tube 511 to the top portion 101, improving a dew removal efficiency of utilizing the first tube 511 to perform dew removal for the crossbeam 120 and the top portion 101. This can reduce the thermal load caused by dew removal to the refrigerator 10 and reduce energy consumption of the refrigerator 10.

[0068] As shown in Figure 8, in some embodiments, the first clamping portion 121 is provided with a second card slot 1211, and the first tube 511 is inserted in the second card slot 1211. Thus, this is easy to implement and facilitates installing the first tube 511 on the crossbeam 120.

[0069] Further, as shown in Figure 8, in some embodiments, the crossbeam 120 further comprises a third card slot 1212 cooperating with the top portion 101 by a snap-fit, the top portion 101 cooperates with an inner sidewall of the third card slot 1212 to form a clamping hole 1213, and at least a portion of the annular tube 521 is disposed to pass through the clamping hole 1213. Thus, through the third card slot 1212 cooperating with the top portion 101 by the snap-fit, the crossbeam 120 is fixed to the top portion 101, and the annular tube 521 is disposed inside the clamping hole 1213, so that the annular tube 521 can be utilized to perform dew removal for the crossbeam 120 and the top portion 101. This improves a dew removal range of the annular tube 521 while reducing energy consumption of the refrigerator 10, further reducing a condensation risk of the refrigerator 10.

[0070] As shown in Figures 6, 9, and 10, in some embodiments, the refrigerator 10 further comprises a first air cooler 900, and the first air cooler 900 is disposed in the housing assembly 100 and configured to perform heat dissipation for the condenser 300. Thus, the first air cooler 900 is utilized to actively perform heat dissipation for the condenser 300 to improve an effect of the condenser 300 condensing a refrigerant.

[0071] As shown in Figures 6, 9, and 11, in some embodiments, the refrigerator 10 further comprises a drying assembly 1000 configured to dry a refrigerant, and another end of the first dew removal tube 510 and another end of the second dew removal tube 520 are in communication with the second input portion through the drying assembly 1000 respectively. Thus, this facilitates achieving a gas-liquid separation of a refrigerant and protecting the compressor 200.

[0072] Optionally, a specific implementation of the drying assembly 1000 includes a gas-liquid separator.

[0073] It should be noted that the "first tube 511" may be "a portion of the first dew removal tube 510", that is, the "first tube 511" and "other portions of the first dew removal tube 510, such as the second tube 512" are manufactured by an integral molding; the "first tube 511" may also be an independent component separable from "other portions of the first dew removal tube 510, such as the second tube 512", that is, the "first tube 511" may be manufactured independently and then combined with "other portions of the first dew removal tube 510, such as the second tube 512" to form a whole.

[0074] Equivalently, "a certain tube", "a certain portion" may be a portion of a corresponding "component", that is, "the certain tube", "the certain portion" and "other portions of the component" are manufactured by an integral molding; "the certain tube", "the certain portion" may also be an independent component separable from "other portions of the component", that is, "the certain tube", "the certain portion" may be manufactured independently and then combined with "other portions of the component" to form a whole. An expression of the above "a certain tube", "a certain portion" in the present application is only one embodiment for convenience of reading, and is not a limitation of a protection scope of the present application. As long as the above features are included and a function is the same, it should be understood as an equivalent technical solution of the present application.

[0075] It should be noted that the "crossbeam 120" may be one component of a "housing assembly 100" module, that is, assembled with "other components of the housing assembly 100" into a module for a modular assembly; the "crossbeam 120" may also be relatively independent from "other components of the housing assembly 100" and can be installed separately, that is, the "crossbeam 120" can constitute a whole with "other components of the housing assembly 100" in this device.

[0076] Equivalently, components included in "units", "assemblies", "mechanisms", and "devices" of the present application may also be flexibly combined, that is, the components may be produced modularly according to actual conditions as an independent module for a modular assembly; the components may also be assembled separately to constitute a module in this device. A division of the above components in the present application is only one embodiment for convenience of reading, and is not a limitation of a protection scope of the present application. As long as the above components are included and a function is the same, it should be understood as an equivalent technical solution of the present application.

[0077] It should be noted that there may be various specific implementations of the control valve assembly, including but not limited to a three-way valve, a four-way valve, or a two-way valve arranged in parallel, etc.

[0078] In some embodiments, the control valve assembly comprises a three-way solenoid valve.

[0079] It should be noted that there may be various specific implementations of the first directional valve, including but not limited to a three-way valve, a four-way valve, or a two-way valve arranged in parallel, etc.

[0080] In some embodiments, the first directional valve comprises a three-way solenoid valve.

[0081] In a description of the present application, it should be understood that orientations or positional relationships indicated by terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present application and simplifying the description, rather than indicating or implying that a referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations of the present application.

[0082] In addition, terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying a relative importance or implicitly indicating a number of indicated technical features. Thus, a feature defined with "first", "second", etc. may explicitly or implicitly include at least one such feature. In a description of the present application, a meaning of "multiple" is at least two, for example two, three, etc., unless otherwise clearly and specifically defined.

[0083] In the present application, unless otherwise clearly specified and defined, terms "install", "connect", "connection", "fix", etc. should be understood broadly. For example, a connection may be a fixed connection, a detachable connection, or integral; a connection may be a mechanical connection or an electrical connection; a connection may be a direct connection or an indirect connection through an intermediate medium, or may be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. For a person of ordinary skill in the art, specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0084] In the present application, unless otherwise clearly specified and defined, a first feature being "on" or "under" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or diagonally above the second feature, or merely indicates that a horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature may be that the first feature is directly below or diagonally below the second feature, or merely indicates that a horizontal height of the first feature is lower than that of the second feature.

[0085] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on", or "mounted on" another element, the element may be directly on the other element or there may also be an intervening element present. When an element is considered to be "connected" to another element, the element may be directly connected to the other element or there may be an intervening element present simultaneously. Further, when an element is considered to be "fixedly connected" to another element, the two may be fixed by a detachable connection method, or may be fixed by a non-detachable connection, such as a sleeving, a snap-fitting, an integral molding fixation, a welding, etc., which can be achieved in a conventional technology and will not be described redundantly here.

[0086] Technical features of the above embodiments may be combined arbitrarily. To make a description concise, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in a combination of these technical features, the combination should all be considered as within a scope recorded in this description.

[0087] The above embodiments merely express several implementation modes of the present application, and descriptions thereof are relatively specific and detailed, but should not be understood as limitations on a scope of an invention patent. It should be pointed out that for a person of ordinary skill in the art, without departing from an inventive concept of the present application, several modifications and improvements may also be made, and these all belong to a protection scope of the present application.

Examples

Embodiment Construction

[0033]In order to make objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail below with reference to drawings and specific embodiments. It should be understood that specific embodiments described herein are only used to explain the present application and do not limit a protection scope of the present application.

[0034]Unless otherwise defined, all technical and scientific terms used herein have same meanings as commonly understood by a person of ordinary skill in a technical field to which the present application belongs. Terms used herein in a description of the present application are only for a purpose of describing specific embodiments and are not intended to limit the present application.

[0035]Reference to any related art in the description is not and should not be regarded as an admission or in any form an implication that such related art forms part of common general knowledge in a region o...

Claims

1. A refrigerator, <b>characterized by comprising: a housing assembly, comprising a freezing compartment, the freezing compartment comprising a door frame, the door frame comprising a top portion; a compressor, spaced from the door frame and disposed in the housing assembly, the compressor comprising a first input portion and a first output portion; a condenser, disposed in the housing assembly, the condenser comprising a first output port and a first input port in communication with the first output portion; a control valve assembly, comprising a second input port in communication with the first input port and at least two second output ports; a dew removal assembly, comprising a first dew removal tube and a second dew removal tube, one end of the first dew removal tube being connected to one of the second output ports, the first dew removal tube comprising a first tube, the first tube extending along a length direction of the top portion, one end of the second dew removal tube being connected to another one of the second output ports, the second dew removal tube comprising an annular tube, the annular tube being disposed around the door frame; an expansion valve, comprising a second input portion and a second output portion, the second input portion being in communication with another end of the first dew removal tube and another end of the second dew removal tube respectively; an evaporator, disposed in the housing assembly, the evaporator comprising a third input port and a third output port in communication with the third input port, the third input port being in communication with the second output portion; and a control component, in communication with the compressor and the control valve assembly; wherein when an ambient humidity where the refrigerator is located is less than or equal to a first threshold, the control component is configured to control the control valve assembly to bring the first dew removal tube into communication with the first input port and to close the second dew removal tube from the first input port; when the ambient humidity where the refrigerator is located is greater than the first threshold and less than or equal to a second threshold, the control component is configured to control the control valve assembly to bring the second dew removal tube into communication with the first input port and to close the first dew removal tube from the first input port.

2. The refrigerator according to claim 1, characterized in that when the ambient humidity where the refrigerator is located is greater than the second threshold, the control component is configured to control the control valve assembly to bring the first dew removal tube and the second dew removal tube into communication with the first input port respectively.

3. The refrigerator according to claim 1, characterized in that the refrigerator further comprises a humidity detection component in communication with the control component, the humidity detection component being disposed in the housing assembly and configured to detect a magnitude of the ambient humidity where the refrigerator is located.

4. The refrigerator according to claim 1, characterized in that the annular tube cooperates with the door frame by a snap-fit.

5. The refrigerator according to claim 1, characterized in that the door frame is provided with a first card slot, and the annular tube is inserted in the first card slot.

6. The refrigerator according to claim 5, characterized in that the door frame is provided with a flange, and the flange is bent to form the first card slot.

7. The refrigerator according to claim 1, characterized in that the housing assembly comprises a base, the door frame and the compressor are spaced on the base, and relative to the base, the top portion is disposed above the compressor; the first dew removal tube comprises two second tubes, the second tubes are disposed at an acute angle with the base, and the two second tubes are spaced on both sides of the freezing compartment and in communication with both ends of the first tube respectively; one of the second tubes is connected to the second output port, and another one of the second tubes is in communication with the second input portion; and / or, the second dew removal tube further comprises a delivery tube in communication with one end of the annular tube and a return tube in communication with another end of the annular tube, at least a portion of the delivery tube and at least a portion of the return tube are adjacent, and are disposed to pass between a lower side of the freezing compartment and the base.

8. The refrigerator according to claim 7, characterized in that at least a portion of the annular tube is nested in the door frame, the door frame is provided with a first notch for avoiding the delivery tube and the return tube, the base is provided with a second notch for avoiding the delivery tube and the return tube, and the second notch is disposed opposite to the first notch.

9. The refrigerator according to claim 1, characterized in that the housing assembly further comprises a crossbeam fixed to the top portion, the crossbeam comprises a first clamping portion, the first clamping portion is spaced from the top portion along a height direction of the housing assembly, and the first tube is disposed at the first clamping portion.

10. The refrigerator according to claim 9, characterized in that the first clamping portion is provided with a second card slot, and the first tube is inserted in the second card slot.

11. The refrigerator according to claim 9, characterized in that the crossbeam further comprises a third card slot cooperating with the top portion by a snap-fit, the top portion cooperates with an inner sidewall of the third card slot to form a clamping hole, and at least a portion of the annular tube is disposed to pass through the clamping hole.

12. The refrigerator according to claim 1, characterized in that the refrigerator further comprises a first air cooler, the first air cooler being disposed in the housing assembly and configured to perform heat dissipation for the condenser; and / or, the refrigerator further comprises a drying assembly configured to dry a refrigerant, another end of the first dew removal tube and another end of the second dew removal tube are in communication with the second input portion through the drying assembly respectively.

13. The refrigerator according to any one of claims 1 to 12, characterized in that the refrigerator further comprises a flow regulation assembly, another end of the first dew removal tube and another end of the second dew removal tube are in communication with the third input port through the flow regulation assembly; wherein the flow regulation assembly is in communication with the control component, when an ambient temperature where the refrigerator is located is less than or equal to a third threshold, the flow regulation assembly is configured to output a first flow rate; when the ambient temperature where the refrigerator is located is greater than the third threshold, the flow regulation assembly is configured to output a second flow rate greater than the first flow rate.

14. The refrigerator according to claim 13, characterized in that the flow regulation assembly comprises a first capillary tube configured to output the first flow rate, a second capillary tube having a flow area larger than that of the first capillary tube, and a first directional valve in communication with the control component, one end of the first capillary tube and one end of the second capillary tube are in communication with an output port of the first directional valve respectively, another end of the first capillary tube and another end of the second capillary tube are in communication with the third input port respectively, an input port of the first directional valve is in communication with another end of the first dew removal tube and another end of the second dew removal tube respectively; wherein when the ambient temperature where the refrigerator is located is less than or equal to the third threshold, the third input port is in communication with the first dew removal tube and / or the second dew removal tube through the first capillary tube; when the ambient temperature where the refrigerator is located is greater than the third threshold, the third input port is in communication with the first dew removal tube and / or the second dew removal tube through the second capillary tube.

15. The refrigerator according to claim 13, characterized in that the refrigerator further comprises a temperature detection component in communication with the control component, the temperature detection component being disposed in the housing assembly and configured to detect a magnitude of the ambient temperature where the refrigerator is located.

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