Refrigerator and ventilation method thereof

Abstract

The invention provides a refrigerator and a ventilation method thereof. The refrigerator comprises a refrigerator body, and the refrigerator body comprises at least one chamber; the drain pipe is used for guiding defrosting water; a scavenging pump; the ventilation pipe is communicated with the outside of the box body and the compartment, and the ventilation pipe is connected to the ventilation pump; when the ventilation pump works, external fresh air enters the compartment from one of the drainage pipe and the ventilation pipe, and air in the compartment is exhausted from the other one of the drainage pipe and the ventilation pipe. Ventilation of the chambers is achieved through the drainage pipe and the ventilation pipe, air path circulation is achieved through existing parts as much as possible, meanwhile, the influence on performance is small, feasibility is high, and meanwhile the refrigerating capacity loss of the refrigerator is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of household appliance technology, and in particular to a refrigerator and a ventilation method thereof. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for the user experience of refrigerator products. The odor problem in refrigerators has long been a problem that has troubled users and needs to be solved urgently.

[0003] Most existing solutions are to drill holes in the refrigerator body, which are directly connected to the outside and use ventilation fans or ventilation pumps to provide ventilation power. However, the holes will inevitably leak cold air, affecting the temperature, power consumption and other performance of the refrigerator. At the same time, due to the cold leakage, condensation may occur on the outside of the holes, affecting the user experience.

[0004] In view of this, it is necessary to provide a refrigerator to solve the above technical problems. Summary of the invention

[0005] In order to achieve the above-mentioned purpose, the present application provides a refrigerator, which includes a box body, the box body includes at least one compartment; a drain pipe for guiding defrost water; a ventilation pump; a ventilation pipe connecting the outside of the box body and the compartment, and the ventilation pipe is connected to the ventilation pump; wherein, when the ventilation pump is working, external fresh air enters the compartment from one of the drain pipe and the ventilation pipe, and the air in the compartment is discharged from the other.

[0006] As a further improvement of the present invention, the ventilation pipe is an air inlet pipe, external fresh air enters the compartment from the air inlet pipe, and the air in the compartment is discharged from the drain pipe; or, the ventilation pipe is an air outlet pipe, the air in the compartment is discharged from the air outlet pipe, and external fresh air enters the compartment from the drain pipe.

[0007] As a further improvement of the present invention, the ventilation pipe is arranged along the drainage pipe to exchange heat with the drainage pipe.

[0008] As a further improvement of the present invention, the ventilation pump is located in the compressor cabin at the bottom of the refrigerator, and the ventilation pump is also connected to a connecting pipe, which extends to the evaporating dish.

[0009] As a further improvement of the present invention, the housing further comprises an air duct located at the rear side of the compartment and connected to the compartment, an evaporator is arranged in the air duct, one end of the drain pipe is located below the evaporator, and the other end extends to the evaporating dish.

[0010] As a further improvement of the present invention, a heating wire is provided on the drain pipe.

[0011] As a further improvement of the present invention, the compartment includes a refrigeration chamber and a freezer chamber that are independently refrigerated, the refrigeration chamber and the freezer chamber are respectively provided with the drainage pipe, and the ventilation pipe connects the refrigeration chamber with the outside of the box and / or connects the freezer chamber with the outside of the box.

[0012] As a further improvement of the present invention, the compartment includes a refrigerating chamber and a freezing chamber which are interconnected, the freezing chamber is provided with the drain pipe, and the ventilation pipe connects the refrigerating chamber with the outside of the box body.

[0013] The present invention also provides a refrigerator ventilation method, comprising the following steps:

[0014] After a certain period of time after the room refrigeration ends, turn on the ventilation pump;

[0015] External fresh air is sucked into the compartment through the ventilation pipe, and the air in the compartment is discharged from the drain pipe; or, the air in the compartment is discharged through the ventilation pipe, and external fresh air enters the compartment from the drain pipe, thereby achieving air replacement in the compartment;

[0016] After the ventilation is completed, the ventilation pump is turned off.

[0017] As a further improvement of the present invention, a heating wire is provided on the drain pipe, and the rotation speed of the ventilation pump during normal operation is recorded as the standard rotation speed, and the operation speed of the ventilation pump is detected during the ventilation process;

[0018] If the difference between the operating speed and the standard speed exceeds a set threshold, the ventilation pump is turned off and the heating wire is turned on to heat the drain pipe to melt ice; if the difference between the operating speed and the standard speed is within the set threshold range, the ventilation pump continues to operate.

[0019] Beneficial effects of the present invention: The present invention realizes ventilation of the compartment through the drain pipe and the ventilation pipe, and the air circulation is realized by using existing components as much as possible, while having little impact on performance and high feasibility, and effectively reducing the cooling loss of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 is a side view of a dual-system refrigerator of the present invention;

[0022] Figure 2 A rear view of the dual-system refrigerator of the present invention;

[0023] Figure 3 for Figure 2A is a schematic diagram of the enlarged structure of the middle part;

[0024] Figure 4 is a side view of a single-system refrigerator of the present invention;

[0025] Figure 5 It is a rear view of the single-system refrigerator of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0030] like Figures 1 to 5 As shown, the refrigerator of the present invention includes a housing 100 , a drain pipe 200 , a ventilation pump 300 and a ventilation pipe 400 .

[0031] The box body 100 includes at least one compartment 101, and a duct 102 connected to the compartment 101 is arranged at the rear side of the compartment 101. A fan and an evaporator 103 are arranged in the duct 102. The evaporator 103 is located below the fan. The evaporator 103 is used to generate cold air. The generated cold air enters the compartment 101 through the duct 102 to achieve refrigeration.

[0032] One end of the drain pipe 200 is connected to the bottom of the evaporator 103, and is used to guide the defrost water of the evaporator 103. Specifically, an evaporation dish can be arranged in the compressor compartment at the bottom of the refrigerator, and the defrost water can be guided into the evaporation dish through the drain pipe 200, or the defrost water can be directly guided to the outside of the cabinet 100 through the drain pipe 200.

[0033] At the same time, the drain pipe 200 is used to inject fresh air into the compartment 101 or discharge the air in the compartment 101 when the ventilation pump 300 is working.

[0034] Furthermore, a heating wire is provided on the drain pipe 200, and the heating wire is used to heat the drain pipe 200 to prevent the drain pipe 200 from freezing and causing blockage.

[0035] The ventilation pump 300 is located in the compressor cabin at the bottom of the refrigerator, thereby reducing the space occupied in the box body 100. The ventilation pump 300 is connected to a connecting pipe 301, and the connecting pipe 301 extends to the refrigerator evaporating dish. In this way, when the ventilation pipe 400 is used for exhaust and the drain pipe 200 is used for intake, water leakage caused by high air humidity in the compartment 101 can be avoided. If there is water in the pipeline, it can be discharged into the evaporating dish.

[0036] The ventilation pipe 400 connects the outside of the box body 100 and the compartment 101. The ventilation pipe 400 is connected to the ventilation pump 300. When the ventilation pump 300 is working, external fresh air enters the compartment 101 from one of the drain pipe 200 and the ventilation pipe 400, and the air in the compartment 101 is discharged from the other one.

[0037] When the ventilation pipe 400 is used for air intake and the drain pipe 200 is used for exhaust, the ventilation pump 300 includes an air inlet and an air outlet. One end of the ventilation pipe 400 is connected to the air outlet of the ventilation pump 300, and the other end is connected to the bottom of the compartment 101. Under the action of the ventilation pump 300, external fresh air enters the compartment 101 through the ventilation pipe 400, and the air in the compartment 101 is discharged from the drain pipe 200 through the air duct 102.

[0038] When the ventilation pipe 400 is used for exhaust and the drain pipe 200 for intake, the ventilation pump 300 includes an air suction port and an air exhaust port. One end of the ventilation pipe 400 is connected to the air suction port of the ventilation pump 300, and the other end is connected to the bottom of the compartment 101. The connecting pipe 301 is connected to the exhaust port of the ventilation pump 300. The air in the compartment 101 is discharged through the ventilation pipe 400 under the action of the ventilation pump 300, thereby forming a negative pressure in the compartment 101, and the external fresh air is sucked into the compartment 101 from the drain pipe 200 and the air duct 102.

[0039] In order to prevent the air exhausted from the compartment 101 from re-entering the compartment 101 , the air outlet (air inlet) of the ventilation tube 400 is as far away from the ventilation pump 300 as possible.

[0040] In this embodiment, the drain pipe 200 and the ventilation pipe 400 are both located in the foaming layer of the refrigerator, and the ventilation pipe 400 is arranged along the drain pipe 200 to contact and exchange heat with the drain pipe 200. The cold air in the compartment 101 flows out or enters from the ventilation pipe 400, and the external normal temperature air enters or flows out from the drain pipe 200. During the air circulation process, the drain pipe 200 and the ventilation pipe 400 can exchange heat, and the external normal temperature air flowing in is heat-exchanged and cooled by the outflowing cold air, thereby reducing the cooling loss of the refrigerator. The drain pipe 200 and the ventilation pipe 400 can be made of metal material with high heat exchange efficiency.

[0041] It should be noted that it is preferred to use the ventilation pipe 400 for exhaust and the drain pipe 200 for intake to achieve air replacement in the compartment 101. First, compared with the ventilation pipe 400 for intake and the drain pipe 200 for exhaust, this method has a higher ventilation efficiency; second, by taking in air through the drain pipe 200, the external air entering from the drain pipe 200 can exchange heat with the evaporator 103 when passing through the evaporator 103 to reduce the temperature, thereby avoiding a relatively large impact on the temperature in the compartment 101. At the same time, the external air can defrost the evaporator 103, thereby reducing the power loss of defrosting; finally, the external air can enter the compartment 101 evenly from the air duct 102, thereby fully replacing the air in the compartment 101.

[0042] For dual system refrigerators, refer to Figure 1 and Figure 2(Taking the ventilation pipe 400 for exhaust and the drain pipe 200 for intake as an example), the compartment 101 includes a refrigerating chamber 101a and a freezing chamber 101b which are refrigerated independently of each other, and the evaporator 103 is arranged in the air duct 102 at the rear side of the refrigerating chamber 101a and the freezing chamber 101b, so as to realize the refrigerating chamber 101a and the freezing chamber 101b to be cooled separately, and the refrigerating chamber drain pipe 201 is connected to the bottom of the evaporator 103 at the rear side of the refrigerating chamber 101a, and the freezing chamber drain pipe 202 is connected to the bottom of the evaporator 103 at the rear side of the freezing chamber 101b.

[0043] The ventilation pipe 400 is provided with two groups, which are connected to the bottom of the refrigerating chamber 101a and the freezing chamber 101b respectively. In this way, the air in the refrigerating chamber 101a and the freezing chamber 101b is extracted through the two groups of ventilation pipes 400, thereby forming a negative pressure environment in the refrigerating chamber 101a and the freezing chamber 101b, and the external fresh air enters the refrigerating chamber 101a from the refrigerating chamber drain pipe 201 and enters the freezing chamber 101b from the freezing chamber drain pipe 202, thereby realizing the air replacement in the refrigerating chamber 101a and the freezing chamber 101b. Of course, only one of the refrigerating chamber 101a or the freezing chamber 101b can be ventilated.

[0044] For single system refrigerators, refer to Figure 4 and Figure 5 (Taking the ventilation pipe 400 for exhaust and the drain pipe 200 for intake as an example), the compartment 101 includes a refrigerating chamber 101a and a freezing chamber 101b which are interconnected. An evaporator 103 is arranged in the air duct 102 at the rear side of the freezing chamber 101b. The cold air circulates and diffuses from the freezing chamber 101b to the refrigerating chamber 101a. A freezing chamber drain pipe 202 is connected below the evaporator 103 at the rear side of the freezing chamber 101b.

[0045] The ventilation pipe 400 is connected to the refrigerating chamber 101a, and the air in the refrigerating chamber 101a is extracted through the ventilation pipe 400, and the external air enters the freezing chamber 101b through the freezing chamber drain pipe 202, and then circulates and diffuses to the refrigerating chamber 101a, thereby realizing the air replacement in the refrigerating chamber 101a and the freezing chamber 101b.

[0046] The present invention also provides a refrigerator ventilation method, comprising the following steps:

[0047] A certain period of time after the refrigeration of the compartment 101 is finished, the ventilation pump 300 is turned on;

[0048] External fresh air is sucked into the compartment 101 through the ventilation pipe 400, and the air in the compartment 101 is discharged from the drain pipe 200; or, the air in the compartment 101 is discharged through the ventilation pipe 400, and external fresh air enters the compartment 101 from the drain pipe 200, so as to realize the air replacement in the compartment 101;

[0049] After the ventilation is completed, the ventilation pump 300 is turned off. The ventilation time is determined according to the volume of the chamber 101 and the ventilation efficiency of the ventilation pump 300 to ensure that the air in the chamber 101 is fully replaced.

[0050] After the refrigeration is finished, ventilation begins. The evaporator 103 preferably adopts a cold storage evaporator. When ventilation is performed by exhausting the ventilation pipe 400 and taking in air through the drain pipe 200, the external air entering from the drain pipe 200 can exchange heat and cool down with the evaporator 103, effectively reducing the temperature of the air entering the compartment 101.

[0051] Furthermore, the ventilation process also includes ice blockage detection, recording the normal operating speed of the ventilation pump 300 as a standard speed, and detecting the operating speed of the ventilation pump 300 during the ventilation process; if the difference between the operating speed and the standard speed exceeds a set threshold, it is determined that the ventilation passage is not smooth and there may be ice blockage. At this time, the ventilation pump 300 is turned off, and the heating wire is turned on to heat the drain pipe 200 to melt the ice until the operating speed of the ventilation pump 300 returns to normal; if the difference between the operating speed and the standard speed is within the set threshold range, the ventilation pump 300 continues to operate for ventilation.

[0052] It should be noted that, in order to prevent the residual moisture in the drain pipe 200 from entering the air duct 102 or the compartment 101 when air is taken in through the drain pipe 200, no ventilation operation is performed for a period of time after the evaporator 103 is defrosted or the drain pipe 200 is heated.

[0053] In summary, the present invention realizes ventilation of the compartment 101 through the drain pipe 200 and the ventilation pipe 400, and the air circulation is realized by using existing components as much as possible, while having little impact on performance and high feasibility, and effectively reducing the cooling loss of the refrigerator.

[0054] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0055] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: A housing (100), wherein the housing (100) comprises at least one compartment (101); A drain pipe (200) for guiding defrost water; Ventilation pump (300); a ventilation pipe (400) communicating the outside of the box (100) and the compartment (101), wherein the ventilation pipe (400) is connected to the ventilation pump (300); When the ventilation pump (300) is working, fresh air from outside enters the compartment (101) from one of the drainage pipe (200) and the ventilation pipe (400), and the air in the compartment (101) is discharged from the other one.

2. The refrigerator according to claim 1, characterized in that: The ventilation pipe (400) is an air intake pipe, and fresh air from outside enters the compartment (101) from the air intake pipe, and the air in the compartment (101) is discharged from the drainage pipe (200); Alternatively, the ventilation pipe (400) is an air outlet pipe, the air in the compartment (101) is discharged from the air outlet pipe, and the external fresh air enters the compartment (101) from the drainage pipe (200).

3. The refrigerator according to claim 1, characterized in that: The ventilation pipe (400) is arranged along the drainage pipe (200) so as to be in contact with the drainage pipe (200) for heat exchange.

4. The refrigerator according to claim 1, characterized in that: The ventilation pump (300) is located in the compressor compartment at the bottom of the refrigerator. The ventilation pump (300) is also connected to a connecting pipe (301), and the connecting pipe (301) extends to the evaporating dish.

5. The refrigerator according to claim 1, characterized in that: The housing (100) further comprises an air duct (102) located at the rear side of the compartment (101) and in communication with the compartment (101); an evaporator (103) is arranged in the air duct (102); one end of the drain pipe (200) is located below the evaporator (103), and the other end extends to the evaporating dish.

6. The refrigerator according to claim 1, characterized in that: The drainage pipe (200) is provided with a heating wire.

7. The refrigerator according to claim 1, characterized in that: The compartment (101) comprises a refrigerating chamber (101a) and a freezing chamber (101b) which are independently refrigerated from each other. The refrigerating chamber (101a) and the freezing chamber (101b) are respectively provided with the drainage pipe (200). The ventilation pipe (400) connects the refrigerating chamber (101a) with the outside of the box (100) and / or connects the freezing chamber (101b) with the outside of the box (100).

8. The refrigerator according to claim 1, characterized in that: The compartment (101) comprises a refrigerating chamber (101a) and a freezing chamber (101b) which are connected to each other, the freezing chamber (101b) is provided with the drain pipe (200), and the ventilation pipe (400) connects the refrigerating chamber (101a) with the outside of the box body (100).

9. A refrigerator ventilation method, characterized in that: The steps include: A ventilation pump (300) is turned on within a certain period of time after the refrigeration of the compartment (101) is completed; External fresh air is sucked into the compartment (101) through the ventilation pipe (400), and the air in the compartment (101) is discharged from the drainage pipe (200); or, the air in the compartment (101) is discharged through the ventilation pipe (400), and external fresh air enters the compartment (101) from the drainage pipe (200), thereby achieving air replacement in the compartment (101); After the ventilation is completed, the ventilation pump (300) is turned off.

10. The refrigerator ventilation method according to claim 9, characterized in that: The drainage pipe (200) is provided with a heating wire, and the rotation speed of the ventilation pump (300) during normal operation is recorded as a standard rotation speed, and the operation rotation speed of the ventilation pump (300) is detected during the ventilation process; If the difference between the operating speed and the standard speed exceeds a set threshold, the ventilation pump (300) is turned off and the heating wire is turned on to heat the drain pipe (200) to melt ice; if the difference between the operating speed and the standard speed is within a set threshold, the ventilation pump (300) continues to operate.

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