Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator. The refrigerator comprises a refrigerator body, an evaporator and a compressor are arranged in the refrigerator body; the defrosting device comprises a liquid storage box capable of storing liquid and a liquid conveying structure, and the liquid storage box is arranged in the box body in the mode that heat exchange can be conducted between the liquid storage box and the compressor to heat the liquid in the liquid storage box; the liquid conveying structure conveys liquid in the liquid storage box to the surface of the evaporator so that the evaporator can be defrosted. The defrosting efficiency of the evaporator can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, for example, to a refrigerator. Background Art

[0002] During the refrigeration process of an air-cooled refrigerator, the water vapor inside the refrigerator easily condenses into frost on the evaporator when it gets cold, blocking the air path and reducing the heat absorption efficiency of the refrigerant. Therefore, the surface of the evaporator needs to be defrosted regularly.

[0003] In order to defrost the surface of the evaporator, the relevant technology discloses a defrost device for a refrigerator, which includes: a steel tube heating wire, which is arranged at the bottom of the evaporator; when defrosting is required, the power is turned on to consume the new electric energy converted into heat to heat the air, and the hot air is generated to melt the frost on the surface of the evaporator into water through natural convection and heat radiation.

[0004] In the process of implementing the above-mentioned defrosting device, it is found that there are at least the following problems in the related technology:

[0005] Although the defrosting device in the related art can realize the defrosting of the evaporator through the heating wire, since the heating wire is set at a local position of the evaporator, the heating of the evaporator is not uniform during defrosting, resulting in low defrosting efficiency.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiment provides a refrigerator to improve the defrosting efficiency of an evaporator.

[0009] In some embodiments, a refrigerator is provided, comprising: a cabinet, in which an evaporator and a compressor are arranged; a defrosting device, comprising a liquid storage tank capable of storing liquid and a liquid infusion structure, wherein the liquid storage tank is arranged inside the cabinet in a manner capable of exchanging heat with the compressor to heat the liquid inside the liquid storage tank; the liquid infusion structure transports the liquid in the liquid storage tank to the surface of the evaporator to defrost the evaporator.

[0010] Optionally, the infusion structure includes: a delivery pipeline, one end of which is connected to a liquid storage tank and is used to discharge the liquid in the liquid storage tank; a spray component, whose liquid inlet is connected to the other end of the delivery pipeline, and the spray component is located above the evaporator, and is used to spray the liquid discharged from the delivery pipeline onto the surface of the evaporator.

[0011] Optionally, the infusion structure further includes: a heating element, which is arranged in the delivery pipeline and is used to heat the liquid flowing in the delivery pipeline.

[0012] Optionally, the defrost device further comprises: a recovery structure, which is communicated with the liquid storage tank and is used for collecting the liquid flowing through the surface of the evaporator and guiding it back to the liquid storage tank.

[0013] Optionally, the recovery structure includes: a liquid receiving pan, located below the evaporator, for receiving liquid flowing through the surface of the evaporator; a collecting pipeline, the opposite ends of the collecting pipeline are respectively connected to the liquid receiving pan and the liquid storage tank, for guiding the liquid in the liquid receiving pan back to the liquid storage tank.

[0014] Optionally, the defrost device further includes: a liquid pump, disposed in the liquid storage tank, for pumping the liquid in the liquid storage tank to the evaporator.

[0015] Optionally, the refrigerator further includes: a liquid level detection device, which is arranged in the liquid storage tank and is used to detect the liquid level height of the liquid inside the liquid storage tank.

[0016] Optionally, the refrigerator further comprises: an evaporating dish connected to the liquid storage tank, and used for directing the liquid inside the liquid storage tank to the evaporating dish for evaporation when the liquid level inside the liquid storage tank is greater than a first preset height.

[0017] Optionally, the refrigerator further comprises: a liquid replenishing device, which is connected to the liquid storage tank and is used to replenish liquid into the liquid storage tank when the liquid level height of the liquid inside the liquid storage tank is less than a second preset height.

[0018] Optionally, the refrigerator further includes: a controller, a signal input end of which is electrically connected to the liquid level detection device so that the liquid level height value detected by the liquid level detection device is transmitted to the controller; when the refrigerator includes an evaporating dish, the controller controls the connection or disconnection between the liquid storage tank and the liquid storage tank according to the liquid level height value detected by the liquid level detection device; or, when the refrigerator includes a liquid replenishing device, the controller controls the connection or disconnection between the liquid replenishing device and the liquid storage tank according to the liquid level height value detected by the liquid level detection device.

[0019] The refrigerator provided by the embodiment of the present disclosure can achieve the following technical effects:

[0020] In the refrigerator provided by the embodiment of the present disclosure, the liquid inside the liquid storage tank is first heated by heat exchange with the compressor to raise the temperature, and then transported to the surface of the evaporator through the infusion structure. Since the temperature of the liquid is relatively high, when the liquid contacts the frost layer on the surface of the evaporator, the frost layer will melt quickly. Compared with hot air, it can transfer heat to the evaporator more quickly, accelerate the melting speed of the frost layer, and improve the defrosting efficiency of the evaporator. At the same time, the fluidity of the liquid can help to carry the melted water away from the surface of the evaporator to prevent it from freezing again. In addition, the liquid inside the liquid storage tank in the embodiment of the present disclosure is heated and heated by the waste heat generated by the compressor. Compared with simply relying on electric heating for defrosting, it reduces power consumption and has a better energy-saving effect.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1 is a rear view of a refrigerator provided by one embodiment of the present disclosure;

[0024] Figure 2 is a side view of a refrigerator provided by one embodiment of the present disclosure;

[0025] Figure 3 It is a structural schematic diagram of a defrosting device, an evaporator and a compressor provided by an embodiment of the present disclosure;

[0026] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at X in the embodiment shown;

[0027] Figure 5 is a structural schematic diagram of a defrosting device, an evaporator and a compressor provided by another embodiment of the present disclosure;

[0028] Figure 6 is a side view of a refrigerator provided by yet another embodiment of the present disclosure;

[0029] Figure 7 yes Figure 6 A schematic diagram of the enlarged structure at Y in the embodiment shown;

[0030] Figure 8 3 is a rear view of a refrigerator provided in accordance with another embodiment of the present disclosure.

[0031] Reference numerals:

[0032] 1. Refrigerator;

[0033] 10. Box body; 110. Compressor cabin; 120. Evaporator cabin;

[0034] 20, defrosting device; 210, liquid storage tank; 220, liquid infusion structure; 222, delivery pipeline; 224, spraying element; 2242, element body; 2244, spraying part; 230, heating element; 240, temperature sensor; 250, recovery structure; 252, liquid receiving tray; 254, collection pipeline; 260, liquid pump;

[0035] 30. Evaporator; 40. Compressor; 50. Liquid level detection device; 60. Evaporating dish; 70. Recovery pipeline; 80. Liquid replenishing device; 90. Controller. DETAILED DESCRIPTION

[0036] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0037] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0038] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0040] Unless otherwise stated, the term "plurality" means two or more.

[0041] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0042] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0044] In some embodiments, in combination Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, a refrigerator 1 is provided, comprising a housing 10 and a defrosting device 20. An evaporator 30 and a compressor 40 are arranged inside the housing 10. The defrosting device 20 comprises a liquid storage tank 210 capable of storing liquid and a liquid infusion structure 220. The liquid storage tank 210 is arranged inside the housing 10 in a manner that it can perform heat exchange with the compressor 40 to heat the liquid inside the liquid storage tank 210. The liquid infusion structure 220 transports the liquid in the liquid storage tank 210 to the surface of the evaporator 30 to defrost the evaporator 30.

[0045] In the refrigerator 1 provided in the embodiment of the present disclosure, the liquid inside the liquid storage tank 210 is first heated by heat exchange with the compressor 40 to increase the temperature, and then transported to the surface of the evaporator 30 through the infusion structure 220. Since the temperature of the liquid is relatively high, when the liquid contacts the frost layer on the surface of the evaporator 30, the frost layer will melt quickly. Compared with hot air, it can transfer heat to the evaporator 30 more quickly, accelerate the melting speed of the frost layer, and improve the defrosting efficiency of the evaporator 30. At the same time, the fluidity of the liquid can help to carry the melted water away from the surface of the evaporator 30 to prevent it from freezing again. In addition, in the embodiment of the present disclosure, the liquid inside the liquid storage tank 210 is heated and heated by the waste heat generated by the compressor 40. Compared with simply relying on electric heating for defrosting, it reduces power consumption and has a better energy-saving effect.

[0046] Furthermore, in the embodiment of the present disclosure, the liquid in the liquid storage tank 210 may be water, ethylene glycol solution or mineral oil. The liquid stored in the liquid storage tank 210 needs to be specifically set by technicians according to actual product design and cost requirements.

[0047] Preferably, the liquid in the liquid storage tank 210 in the embodiment of the present disclosure is water. Water has low cost and good thermal conductivity and heat capacity. The liquid in the liquid storage tank 210 described in the following embodiments of the present disclosure is water.

[0048] Optionally, combined Figure 2 and Figure 6 As shown, the housing 10 includes a compressor compartment 110 and an evaporator compartment 120. The compressor 40 and the liquid storage tank 210 are disposed in the compressor compartment 110. The output ends of the evaporator 30 and the liquid infusion structure 220 are located in the evaporator compartment 120.

[0049] In this embodiment, the structural layout of the cabinet 10 is optimized. The compressor cabin 110 and the evaporator cabin 120 are separately provided, and the compressor 40 and the liquid storage tank 210 are arranged in the compressor cabin 110, and the output end of the evaporator 30 and the liquid infusion structure 220 are arranged in the evaporator cabin 120, so as to avoid the waste heat generated by the compressor 40 from affecting the evaporator 30 and reducing the refrigeration efficiency of the refrigerator 1.

[0050] Optionally, combined Figure 1 , Figure 2 , Figure 6 and Figure 8 As shown, along the height direction of the box body 10, the arrangement height of the liquid storage tank 210 is higher than that of the compressor 40. The liquid storage tank 210 and the compressor 40 are arranged adjacent to each other.

[0051] In this embodiment, the liquid storage tank 210 is arranged at a height higher than the compressor 40, so that the heat generated by the compressor 40 can be transferred from the top of the compressor 40 to the liquid storage tank 210, thereby heating the liquid in the liquid storage tank 210. The liquid storage tank 210 and the compressor 40 are arranged adjacent to each other to improve the heat exchange efficiency between the liquid storage tank 210 and the compressor 40, improve the heating efficiency of the liquid in the liquid storage tank 210, and further improve the defrosting efficiency and energy saving effect of the refrigerator 1.

[0052] Optionally, combined Figures 1 to 6 As shown, the liquid infusion structure 220 includes a delivery pipeline 222 and a spraying member 224. One end of the delivery pipeline 222 is connected to the liquid storage tank 210, and is used to discharge the liquid in the liquid storage tank 210. The liquid inlet of the spraying member 224 is connected to the other end of the delivery pipeline 222. The spraying member 224 is located above the evaporator 30, and is used to spray the liquid discharged from the delivery pipeline 222 onto the surface of the evaporator 30.

[0053] In this embodiment, the opposite ends of the delivery pipeline 222 are respectively connected to the spraying member 224 located in the evaporator cabin 120 and the liquid storage tank 210 located in the compressor cabin 110, so as to deliver the liquid in the liquid storage tank 210 to the spraying member 224. By providing the spraying member 224, and the spraying member 224 being located above the evaporator 30, the liquid can be sprayed evenly on the surface of the evaporator 30 in a spraying manner, further increasing the coverage area of ​​the liquid, so that the liquid can contact the frosted parts on the surface of the evaporator 30 more comprehensively and evenly, and further improving the defrosting efficiency of the evaporator 30.

[0054] Optionally, combined Figure 4 As shown, the spraying member 224 includes a member body 2242 and a plurality of spraying portions 2244. The member body 2242 is connected to the conveying pipeline 222. The plurality of spraying portions 2244 are evenly distributed on the member body 2242.

[0055] In this embodiment, the body 2242 is connected to the delivery pipeline 222, and the liquid delivery pipeline 222 in the liquid storage tank 210 delivers the liquid to the body 2242, and then the liquid is sprayed on the surface of the evaporator 30 by a plurality of spray parts 2244 evenly distributed on the body 2242. The plurality of spray parts 2244 are evenly distributed on the body 2242 to improve the uniformity of the liquid sprayed by the spray part 224, thereby improving the uniformity of the liquid distribution on the surface of the evaporator 30, and further improving the defrosting effect of the refrigerator 1.

[0056] In some embodiments, the spraying portion 2244 includes a spray hole or a nozzle. The spray hole or the nozzle is used to spray the liquid at a preset angle. The preset angle needs to be specifically set by a technician according to the actual product equipment.

[0057] In a specific application, the liquid storage tank 210 and the compressor 40 are arranged in the compressor cabin 110. The spraying part 224 and the evaporator 30 are arranged in the evaporator cabin 120. The opposite ends of the delivery pipeline 222 are respectively connected with the spraying part 224 located in the evaporator cabin 120 and the liquid storage tank 210 located in the compressor cabin 110. During the operation of the defrosting device 20, the temperature of the liquid in the liquid storage tank 210 is increased by the heating of the residual heat of the compressor 40, and then it is guided to the part body 2242 in the spraying part 224 through the delivery pipeline 222. In the spraying part 224, the liquid is sprayed uniformly onto the surface of the evaporator 30 in a spraying manner through the multiple spraying parts 2244 on the part body 2242, thereby quickly melting the frost layer on the surface of the evaporator 30.

[0058] Optionally, combined Figures 5 to 7 As shown, the liquid infusion structure 220 further includes a heating element 230 . The heating element 230 is disposed in the delivery pipeline 222 and is used to heat the liquid flowing in the delivery pipeline 222 .

[0059] In this embodiment, a heating element 230 is added to the delivery pipeline 222 to heat the liquid flowing through the delivery pipeline 222. The liquid is further heated before reaching the spray element 224 to further increase the temperature of the liquid, thereby further enhancing the defrosting effect of the refrigerator 1.

[0060] In some embodiments, the heating element 230 includes an electric heating tube or a heating wire. The specific type of the heating element 230 needs to be specifically set by a technician according to the actual refrigerator product.

[0061] Optionally, combined Figure 5 and Figure 6 As shown, the infusion structure 220 further includes a temperature sensor 240. The temperature sensor 240 is disposed in the delivery pipeline 222 and is used to detect the temperature of the liquid flowing in the delivery pipeline 222. The heating element 230 is communicatively connected to the temperature sensor 240. The heating element 230 is used to controllably adjust the working state according to the output signal of the temperature sensor 240.

[0062] In this embodiment, the temperature of the liquid in the delivery pipeline 222 is detected by adding a temperature sensor 240 to ensure the stable defrosting of the refrigerator 1. For example, when the temperature sensor 240 detects that the temperature of the liquid is lower than the temperature threshold, the heating element 230 starts to work or increases the heating power according to the output signal of the temperature sensor 240 to increase the temperature of the liquid in the delivery pipeline 222. When the temperature sensor 240 detects that the temperature of the liquid reaches the temperature threshold, the heating element 230 reduces the heating power or stops working according to the output signal of the temperature sensor 240 to avoid overheating of the liquid in the delivery pipeline 222. The temperature threshold is specifically set by the technician according to the actual refrigerator product.

[0063] Optionally, combined Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the defrosting device 20 further includes a recovery structure 250 . The recovery structure 250 is in communication with the liquid storage tank 210 , and is used to collect the liquid flowing through the surface of the evaporator 30 and guide it back to the liquid storage tank 210 .

[0064] In this embodiment, by adding a recovery structure 250, the liquid flowing through the surface of the evaporator 30 is recovered and guided back to the liquid storage tank 210, so as to realize the recycling of the liquid, reduce the waste of water resources, and further improve the energy-saving and environmental protection effect of the refrigerator 1. In addition, by setting the recovery structure 250, the recycling of the liquid can be realized, the frequency of water replenishment can be reduced, the dependence of the refrigerator 1 on external water resources can be reduced, the operating efficiency of the defrosting device 20 can be improved, and the defrosting efficiency of the refrigerator 1 can be further improved.

[0065] Optionally, combined Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the recovery structure 250 includes a liquid receiving pan 252 and a collection pipe 254. The liquid receiving pan 252 is located below the evaporator 30 and is used to receive the liquid flowing through the surface of the evaporator 30. The opposite ends of the collection pipe 254 are respectively connected to the liquid receiving pan 252 and the liquid storage tank 210, and are used to guide the liquid in the liquid receiving pan 252 back to the liquid storage tank 210.

[0066] In this embodiment, the liquid receiving pan 252 is used to receive the liquid flowing through the surface of the evaporator 30, and the collecting pipe 254 is used to guide the liquid in the liquid receiving pan 252 back to the liquid storage tank 210, so as to collect and guide the liquid back, thereby realizing the recycling of the liquid.

[0067] Optionally, combined Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, along the height direction of the box body 10 , the recovery structure 250 is arranged at a height higher than the liquid storage tank 210 .

[0068] In this embodiment, along the height direction of the cabinet 10, the recovery structure 250 is arranged at a height higher than the liquid storage tank 210, so that the liquid flowing through the surface of the evaporator 30 collected by the recovery structure 250 can be smoothly guided back to the liquid storage tank 210 under the action of the height difference and gravity, thereby reducing the probability of liquid reflux and improving the stability and reliability of liquid circulation. In addition, by achieving stable circulation of liquid through height difference and gravity, the need for additional pumps or power equipment can be reduced, thereby reducing the structural complexity and manufacturing cost of the refrigerator 1.

[0069] In a specific application, the liquid storage tank 210 and the compressor 40 are arranged in the compressor cabin 110. The spraying member 224, the evaporator 30 and the liquid receiving pan 252 are arranged in the evaporator cabin 120. The opposite ends of the delivery pipeline 222 are respectively connected to the spraying member 224 located in the evaporator cabin 120 and the liquid storage tank 210 located in the compressor cabin 110. The opposite ends of the collecting pipeline 254 are respectively connected to the liquid receiving pan 252 located in the evaporator cabin 120 and the liquid storage tank 210 located in the compressor cabin 110. During the operation of the defrosting device 20, the temperature of the liquid in the liquid storage tank 210 is increased by the residual heat of the compressor 40, and then is guided to the member body 2242 in the spraying member 224 through the delivery pipeline 222. In the spraying element 224, the liquid is sprayed uniformly onto the surface of the evaporator 30 through the multiple spraying parts 2244 on the element body 2242, thereby quickly melting the frost layer on the surface of the evaporator 30 to form water. The water formed after the frost layer melts and the liquid flow down along the surface of the evaporator 30 and finally flow into the liquid receiving pan 252. Under the action of the height difference and gravity, the water in the liquid receiving pan 252 is guided back to the liquid storage tank 210 along the collecting pipe 254. In the liquid storage tank 210, the liquid is heated again and circulated for use in the defrosting process.

[0070] Optionally, combined Figures 5 to 8 As shown, the defrosting device 20 further includes a liquid pump 260 . The liquid pump 260 is disposed in the liquid storage tank 210 , and is used to pump the liquid in the liquid storage tank 210 to the evaporator 30 .

[0071] In this embodiment, a liquid pump 260 is added to pump the liquid in the liquid storage tank 210 to the evaporator 30 to ensure stable transmission of the liquid, improve the liquid delivery efficiency, and ensure efficient defrosting.

[0072] Optionally, combined Figures 5 to 7 As shown, the refrigerator 1 further includes a liquid level detection device 50. The liquid level detection device 50 is disposed in the liquid storage tank 210 and is used to detect the liquid level height of the liquid inside the liquid storage tank 210.

[0073] In this embodiment, a liquid level detection device 50 is provided to monitor the liquid level of the liquid inside the liquid storage tank 210 in real time, so as to ensure smooth defrosting of the refrigerator 1.

[0074] In some embodiments, the liquid level detection device 50 includes a float liquid level meter, an ultrasonic liquid level meter or a radar liquid level meter. The specific type of the liquid level detection device 50 needs to be specifically set by technicians according to the actual refrigerator 1 product.

[0075] Optionally, combined Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7and Figure 8 As shown, the refrigerator 1 further includes an evaporating dish 60. The evaporating dish 60 is in communication with the liquid storage tank 210, and is used to guide the liquid in the liquid storage tank 210 to the evaporating dish 60 for evaporation when the liquid level in the liquid storage tank 210 is greater than a first preset height.

[0076] In this embodiment, an evaporating dish 60 is additionally provided, and when the liquid level of the liquid in the liquid storage tank 210 is greater than a first preset height, excess liquid in the liquid storage tank 210 is discharged to the evaporating dish 60 and evaporated, so as to ensure a stable liquid level of the liquid in the liquid storage tank 210, prevent liquid overflow, and ensure smooth defrosting of the refrigerator 1.

[0077] Optionally, combined Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, along the height direction of the housing 10 , the evaporation dish 60 is arranged at a height lower than the liquid storage tank 210 .

[0078] In this embodiment, along the height direction of the cabinet 10, the evaporation dish 60 is set at a height lower than the liquid storage tank 210, so that the excess liquid in the liquid storage tank 210 can be smoothly discharged to the evaporation dish 60 under the action of the height difference and gravity, reducing the probability of liquid backflow and improving the stability and reliability of the excess liquid discharge. In addition, the stable discharge of liquid through the height difference and gravity can reduce the need for additional pumps or power equipment, and reduce the structural complexity and manufacturing cost of the refrigerator 1.

[0079] Optionally, combined Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the evaporation dish 60 is disposed adjacent to the compressor 40 .

[0080] In this embodiment, the evaporating dish 60 is disposed adjacent to the compressor 40 so that the evaporating dish 60 and the compressor 40 can exchange heat, and the waste heat generated by the compressor 40 is used to heat the liquid in the evaporating dish 60, thereby improving the evaporation efficiency of the excess liquid in the evaporating dish 60. In this embodiment, the evaporating dish 60 is disposed adjacent to the compressor 40, and the waste heat generated by the compressor 40 is used for heating and evaporation, thereby further improving the energy efficiency of the refrigerator 1.

[0081] Optionally, combined Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the refrigerator 1 further includes a recovery pipe 70. The opposite ends of the recovery pipe 70 are respectively connected to the liquid storage tank 210 and the evaporation dish 60, and are used to guide the liquid in the liquid storage tank 210 to the evaporation dish 60 when the liquid level height of the liquid in the liquid storage tank 210 is greater than a first preset height.

[0082] In this embodiment, a recovery pipe 70 is provided to connect the liquid storage tank 210 and the evaporating dish 60, so that when the liquid level height of the liquid in the liquid storage tank 210 is greater than the first preset height, the liquid in the liquid storage tank 210 is stably discharged to the evaporating dish 60 along the recovery pipe 70, thereby reducing the probability of liquid leakage.

[0083] In a specific application, the liquid storage tank 210, the compressor 40 and the evaporation dish 60 are arranged in the compressor cabin 110. The spraying part 224, the evaporator 30 and the liquid receiving pan 252 are arranged in the evaporator cabin 120. The opposite ends of the delivery pipeline 222 are respectively connected with the spraying part 224 located in the evaporator cabin 120 and the liquid storage tank 210 located in the compressor cabin 110. The opposite ends of the collection pipeline 254 are respectively connected with the liquid receiving pan 252 located in the evaporator cabin 120 and the liquid storage tank 210 located in the compressor cabin 110. The opposite ends of the recovery pipeline 70 are respectively connected with the liquid storage tank 210 and the evaporation dish 60. During the operation of the defrosting device 20, the water and liquid formed after the frost layer melts will flow down along the surface of the evaporator 30 and finally flow into the liquid receiving pan 252, and then be guided back to the liquid storage tank 210 along the collection pipeline 254. In the liquid storage tank 210, the liquid is heated again and recycled for the defrosting process. As the defrosting process continues, the water formed by the melting of the frost layer will be led back to the liquid storage tank 210 together with the liquid, and the liquid in the liquid storage tank 210 will continue to increase. When the liquid level height of the liquid in the liquid storage tank 210 is greater than the first preset height, the excess liquid in the liquid storage tank 210 will be stably led to the evaporation dish 60 along the recovery pipeline 70 under the action of the height difference and gravity for evaporation.

[0084] Optionally, combined Figure 8 As shown, the refrigerator 1 further includes a liquid replenishing device 80. The liquid replenishing device 80 is in communication with the liquid storage tank 210 and is used to replenish liquid into the liquid storage tank 210 when the liquid level of the liquid in the liquid storage tank 210 is less than a second preset height.

[0085] In this embodiment, liquid is replenished into the liquid storage tank 210 through the liquid replenishing device 80 when the liquid level inside the liquid storage tank 210 is less than a second preset height to ensure a stable liquid level in the liquid storage tank 210, prevent too little liquid, and ensure the smooth defrosting process of the refrigerator 1.

[0086] In some embodiments, the liquid replenishing device 80 includes a water tank for storing liquid, and the water tank is connected to the liquid storage tank 210. Alternatively, the liquid replenishing device 80 includes a replenishing pipeline connected to a liquid source, and the replenishing pipeline communicates the liquid source and the liquid storage tank 210. The liquid source includes a tap water pipe.

[0087] It should be noted that the first preset height is greater than the second preset height. The specific values ​​of the first preset height and the second preset height need to be set by technicians according to actual product equipment. As long as the condition that the first preset height is greater than the second preset height is met, the specific values ​​of the first preset height and the second preset height are not limited here.

[0088] Optionally, combined Figure 1 , Figure 6 and Figure 8 As shown, the refrigerator 1 further includes a controller 90 . A signal input terminal of the controller 90 is electrically connected to the liquid level detection device 50 , so that the liquid level height value detected by the liquid level detection device 50 is transmitted to the controller 90 .

[0089] In this embodiment, a controller 90 is provided and electrically connected to the liquid level detection device 50 so as to control the operation of the refrigerator 1 according to the liquid level height value detected by the liquid level detection device 50, thereby ensuring that the various components of the refrigerator 1 can coordinate with each other to achieve efficient and stable operation of the refrigerator 1.

[0090] In some embodiments, in combination Figure 6 As shown, in the case where the refrigerator 1 includes the evaporating dish 60 , the controller 90 controls the connection or disconnection between the liquid storage tank 210 and the liquid storage tank 210 according to the liquid level height value detected by the liquid level detection device 50 .

[0091] In this embodiment, the controller 90 can control the connection or disconnection between the liquid storage tank 210 and the liquid storage tank 210 according to the liquid level height value detected by the liquid level detection device 50. For example, the liquid level detection device 50 sends the detected liquid level height value to the controller 90. After receiving the liquid level height value detected by the liquid level detection device 50, the controller 90 compares the liquid level height value with the first preset height. In the case where the liquid level height value is greater than the first preset height, the controller 90 controls the connection between the liquid storage tank 210 and the liquid storage tank 210, so that the excess liquid inside the liquid storage tank 210 can be guided to the evaporating dish 60 for evaporation. In the case where the liquid level height value is less than or equal to the first preset height, the controller 90 controls the disconnection between the liquid storage tank 210 and the liquid storage tank 210, so that the liquid can be stored in the liquid storage tank 210 without overflowing to the evaporating dish 60.

[0092] In some embodiments, in combination Figure 8As shown, in the case where the refrigerator 1 includes a liquid replenishing device 80 , the controller 90 controls the connection or disconnection between the liquid replenishing device 80 and the liquid storage tank 210 according to the liquid level height value detected by the liquid level detection device 50 .

[0093] In this embodiment, the controller 90 can control the connection or disconnection between the liquid replenishing device 80 and the liquid storage tank 210 according to the liquid level height value detected by the liquid level detection device 50. For example, the liquid level detection device 50 sends the detected liquid level height value to the controller 90. After receiving the liquid level height value detected by the liquid level detection device 50, the controller 90 compares the liquid level height value with the second preset height. In the case where the liquid level height value is less than the second preset height, the controller 90 controls the connection between the liquid replenishing device 80 and the liquid storage tank 210, so that the liquid in the liquid replenishing device 80 can enter the liquid storage tank 210, or the liquid can enter the liquid storage tank 210 through the liquid replenishing device 80. In the case where the liquid level height value is equal to or greater than the second preset height, the controller 90 controls the disconnection between the liquid replenishing device 80 and the liquid storage tank 210 to prevent the liquid in the liquid replenishing device 80 from entering the liquid storage tank 210, or the liquid from entering the liquid storage tank 210 through the liquid replenishing device 80.

[0094] In some embodiments, in combination Figure 6 As shown, in the case where the refrigerator 1 includes a heating element 230 and a temperature sensor 240, the signal input end of the controller 90 is connected to the temperature sensor 240 for communication, so that the temperature value detected by the temperature sensor 240 is transmitted to the controller 90. The controller 90 controls the working state of the heating element 230 according to the temperature value detected by the temperature sensor 240.

[0095] In this embodiment, the controller 90 can control the working state of the heating element 230 according to the temperature value detected by the temperature sensor 240. For example, the temperature sensor 240 sends the detected temperature value to the controller 90. After receiving the temperature value detected by the temperature sensor 240, the controller 90 compares the temperature value with the temperature threshold. When the temperature value is less than the temperature threshold, the controller 90 controls the heating element 230 to start working or increase the heating power to increase the temperature of the liquid in the delivery pipeline 222. When the temperature value is equal to or greater than the temperature threshold, the controller 90 controls the heating element 230 to reduce the heating power or stop working to avoid overheating of the liquid in the delivery pipeline 222.

[0096] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them.Other embodiments may include structural, logical, electrical, process, and other changes.

[0097] The embodiments are representative of possible variations only. Individual components and functions are optional unless explicitly required, and the order of operations may vary.

[0098] The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular "a" (a), "an" (an) and "the" (the) are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings that include one or more associated ones.

[0099] In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or groups thereof. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method or device that includes the elements.

[0100] In this article, each embodiment may focus on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts may refer to the description of the method part.

[0101] The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator, characterized in that: include: A box body, in which an evaporator and a compressor are arranged; The defrosting device comprises a liquid storage tank capable of storing liquid and a liquid infusion structure. The liquid storage tank is arranged inside the box body in a manner that it can exchange heat with the compressor to heat the liquid inside the liquid storage tank; the liquid infusion structure transports the liquid in the liquid storage tank to the surface of the evaporator to defrost the evaporator.

2. The refrigerator according to claim 1, characterized in that: The infusion structure includes: A delivery pipeline, one end of which is connected to the liquid storage tank and is used to guide the liquid in the liquid storage tank out; The spraying part has a liquid inlet connected to the other end of the delivery pipeline. The spraying part is located above the evaporator and is used to spray the liquid derived from the delivery pipeline onto the surface of the evaporator.

3. The refrigerator according to claim 2, characterized in that: The infusion structure also includes: The heating element is arranged in the delivery pipeline and is used for heating the liquid flowing in the delivery pipeline.

4. The refrigerator according to any one of claims 1 to 3, characterized in that: The defrosting device also includes: The recovery structure is connected to the liquid storage tank and is used for collecting the liquid flowing through the surface of the evaporator and guiding it back to the liquid storage tank.

5. The refrigerator according to claim 4, characterized in that: The recovery structure includes: A liquid receiving pan, located below the evaporator, for receiving liquid flowing through the surface of the evaporator; The collecting pipeline has two opposite ends which are respectively connected with the liquid receiving tray and the liquid storage tank, and is used for guiding the liquid in the liquid receiving tray back to the liquid storage tank.

6. The refrigerator according to any one of claims 1 to 3, characterized in that: The defrosting device also includes: The liquid pump is arranged on the liquid storage tank and is used for pumping the liquid in the liquid storage tank to the evaporator.

7. The refrigerator according to any one of claims 1 to 3, characterized in that: Also includes: The liquid level detection device is arranged in the liquid storage tank and is used for detecting the liquid level height of the liquid inside the liquid storage tank.

8. The refrigerator according to claim 7, characterized in that: Also includes: The evaporating dish is connected to the liquid storage tank and is used to guide the liquid in the liquid storage tank to the evaporating dish for evaporation when the liquid level in the liquid storage tank is greater than a first preset height.

9. The refrigerator according to claim 7, characterized in that: Also includes: The liquid replenishing device is connected to the liquid storage tank and is used to replenish liquid into the liquid storage tank when the liquid level height of the liquid inside the liquid storage tank is less than a second preset height.

10. The refrigerator according to claim 8 or 9, characterized in that: Also includes: The controller has a signal input terminal electrically connected to the liquid level detection device so that the liquid level height value detected by the liquid level detection device is transmitted to the controller; In the case where the refrigerator includes an evaporating dish, the controller controls the connection or disconnection between the liquid storage tank and the liquid storage tank according to the liquid level height value detected by the liquid level detection device; or, In the case where the refrigerator includes a liquid replenishing device, the controller controls the connection or disconnection between the liquid replenishing device and the liquid storage tank according to the liquid level height value detected by the liquid level detecting device.

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