Refrigerator

Abstract

The utility model relates to the technical field of refrigerators, in particular to a refrigerator, and aims to solve the problem that a drain pipe in the prior art is blocked by ice or cannot drain water smoothly after being blocked by ice. In order to achieve the purpose, the refrigerator comprises the drain pipe and the cleaning assembly, and the cleaning assembly is controlled to stretch into the drain pipe so as to clean blockages in the drain pipe. The cleaning assembly can stretch out and draw back in the drainage pipe, when ice blockage or other impurities appear in the drainage pipe, the cleaning assembly is controlled to stretch out and draw back in the drainage pipe so that ice or other impurities in the drainage pipe can be discharged, and the problem that the drainage pipe is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerators, and specifically provides a refrigerator. Background Art

[0002] The refrigerator in the prior art has the problem that the water inlet of the drain pipe freezes and causes the drain pipe to be blocked. Since the water inlet of the drain pipe is arranged close to the evaporator, the water vapor of the evaporator condenses when it encounters cold after absorbing heat and is discharged from the drain pipe. As the temperature decreases and time increases, the condensed water droplets can easily freeze at the water inlet of the drain pipe, thereby blocking the drain pipe. In severe cases, the entire drain pipe may be blocked by ice. The above problem will cause the water to be unable to be discharged from the refrigerator and accelerate the frost on the evaporator. In order to solve the problem of the water inlet of the drain pipe freezing and blocking the drain pipe, the refrigerator in the prior art generally uses the heat of the defrosting mode or the method of adding a heating wire to melt the ice at the water inlet of the drain pipe. However, the above method cannot ensure that the water inlet of the drain pipe or the ice in the drain pipe is completely melted or discharged, and thus cannot ensure that the water in the refrigerator is discharged smoothly. In view of this, it is necessary to provide an improved technical solution to solve the above problem.

[0003] Accordingly, the art needs a new refrigerator to solve the problem in the prior art that the drain pipe is blocked by ice or cannot drain water smoothly after being blocked by ice. Utility Model Content

[0004] The utility model aims to solve the above technical problems, that is, to solve the problem that the drainage pipe is blocked by ice or cannot drain water smoothly after being blocked by ice in the prior art.

[0005] The utility model provides a refrigerator, comprising: a drain pipe; and a cleaning component, which can be controlled to extend and retract into the drain pipe to clean the blockage in the drain pipe.

[0006] In a preferred technical solution of the above refrigerator, a heating wire is arranged in the refrigerator, and the heating wire is wound outside the drain pipe or arranged inside the drain pipe.

[0007] In the preferred technical solution of the above refrigerator, the cleaning assembly includes a fixed portion and a telescopic portion, the fixed portion is fixed in the refrigerator, and the telescopic portion can be telescoped in the drain pipe.

[0008] In a preferred technical solution of the above refrigerator, the refrigerator includes a freezer box, the water inlet of the drain pipe is arranged at the bottom of the freezer box, the fixing part is arranged in the freezer box, and the telescopic part can be telescoped in the drain pipe.

[0009] In a preferred technical solution of the above refrigerator, an evaporating dish is provided in the refrigerator, the water outlet of the drain pipe extends into the evaporating dish, the fixing portion is fixed in the evaporating dish, and the telescopic portion can be telescoped in the drain pipe.

[0010] In the preferred technical solution of the above refrigerator, the telescopic part can rotate around its own rotation axis, and the telescopic part can rub against the inner wall of the drain pipe.

[0011] In a preferred technical solution of the above refrigerator, a mounting cavity is provided in the fixing portion, and the telescopic portion can be accommodated in the mounting cavity after being fully retracted.

[0012] In a preferred technical solution of the above refrigerator, the maximum displacement of the telescopic part that can be telescoped is greater than the length of the drain pipe.

[0013] In the preferred technical solution of the above-mentioned refrigerator, a temperature sensor is arranged in the drain pipe; and / or, the refrigerator also includes a displacement sensor and a controller, the displacement sensor is used to detect the displacement of the cleaning component, the controller is electrically connected to the displacement sensor, and the controller can control the start-up of the cleaning component according to the displacement signal.

[0014] In the preferred technical solution of the above-mentioned refrigerator, the telescopic part includes a driving gear and a rotating shaft, the rotating shaft is provided with rotating teeth, the driving gear is meshed with the rotating teeth, and the rotation of the driving gear can drive the rotating shaft to rotate and telescope in the drain pipe, and the diameter of the rotating shaft is greater than or equal to the diameter of the drain pipe.

[0015] When adopting the above technical solution, the utility model can configure the cleaning component to be able to be retracted in the drain pipe. When ice blockage or other impurities appear in the drain pipe, the cleaning component is controlled to retract in the drain pipe so as to push out the ice or other impurities in the drain pipe, thereby avoiding blockage of the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a front view of the cleaning assembly of the refrigerator of the utility model without extending into the drain pipe;

[0018] Figure 2 It is a front view of the cleaning assembly of the refrigerator of the utility model extending into the drain pipe;

[0019] Figure 3 It is a side view of a refrigerator cleaning component of the utility model arranged in the refrigerator.

[0020] List of reference numerals:

[0021] 1. Refrigerator; 11. Compressor compartment; 111. Compressor; 112. Evaporating dish; 113. Drain pipe; 1131. Water inlet of the drain pipe; 1132. Water outlet of the drain pipe; 114. Heating wire; 12. Freezer; 121. Water tray; 13. Cleaning assembly; 131. Fixed part; 1311. Installation cavity; 132. Telescopic part; 133. Temperature sensor; 14. Evaporator; 141. Defrosting heating wire. DETAILED DESCRIPTION

[0022] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments are only to present the concept of the utility model and do not represent all implementations under the concept of the utility model. Instead, they are only examples of devices and methods consistent with some aspects of the concept of the utility model.

[0023] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

[0024] Unless otherwise specified, words such as "front", "rear", "bottom" and / or "upper", "bottom" and the like are for convenience of description only and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalent elements or objects, and other elements or objects are not excluded in the present utility model. "Connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0025] like Figure 1-3 As shown, in order to solve the problem in the prior art that the drain pipe is blocked by ice or cannot drain smoothly after being blocked by ice, the refrigerator 1 of the utility model includes a drain pipe 113 and a cleaning assembly 13. The cleaning assembly 13 can be controlled to be retracted into the drain pipe 113 to clean the blockage in the drain pipe 113. Preferably, the cleaning assembly 13 includes a fixed portion 131 and a retractable portion 132. The fixed portion 131 is provided with an installation cavity 1311. The retractable portion 132 can be accommodated in the installation cavity 1311 after being fully retracted, thereby reducing the occupied space of the cleaning assembly 13. Figure 3As shown, the fixing portion 131 is fixed in the refrigerator 1, and the telescopic portion 132 can be telescoped in the drain pipe 113. In a preferred embodiment, as shown in FIG. Figure 1 , 2 As shown, the refrigerator 1 includes a freezer 12 and a compressor compartment 11, a water receiving tray 121 is provided at the bottom of the freezer 12, a compressor compartment 11 is provided at the bottom of the water receiving tray 121, an evaporation dish 112 is provided in the compressor compartment 11, a water inlet 1131 of a drain pipe 113 is provided on the water receiving tray 121 at the bottom of the freezer 12, a water outlet 1132 of the drain pipe 113 extends into the evaporation dish 112, a fixed portion 131 of the cleaning assembly 13 is provided in the freezer 12, and a telescopic portion 132 can be telescoped in the drain pipe 113, so as to push the debris in the drain pipe 113 into the evaporation dish 112. Generally, the drain pipe 113 is more easily blocked by ice, and the following description takes the ice blockage of the drain pipe 113 as an example. In order to ensure that the ice in the drain pipe 113 melts as soon as possible, a heating wire 114 is further provided in the refrigerator 1, and the heating wire 114 is wound and arranged outside the drain pipe 113 or arranged in the drain pipe 113. In order to increase the cleaning effect of the cleaning component 13 on the drain pipe 113, the telescopic part 132 can also rotate around its own rotation axis. The telescopic part 132 rotates and rubs against the inner wall of the drain pipe 113 while expanding and contracting in the drain pipe 113, thereby clearing and pushing out the ice in the drain pipe 113.

[0026] In the prior art, an evaporator 14 is provided in the freezer 12, and the evaporator 14 cools the freezer compartment in the freezer 12. The evaporator 14 achieves cooling in the freezer compartment by absorbing heat through the evaporation of the refrigerant therein. Due to the heat absorption of the evaporator 14, the water vapor near the evaporator 14 is condensed into liquid and flows into the water receiving tray 121, and then flows out from the drain pipe 113. However, as the evaporator 14 continues to cool, the condensed water is easy to freeze under the continuous low temperature. At this time, the surface of the evaporator 14 is easy to frost. As the frost layer gradually thickens, the entire evaporator 14 will be covered with frost, which will seriously affect the heat transfer capacity of the evaporator 14. In order to reduce the frost on the surface of the evaporator 14, a defrosting heating wire 141 is provided around the evaporator 14 to reduce the frost on the surface of the evaporator 14. However, since the water inlet 1131 of the drain pipe 113 is also close to the evaporator 14, the water inlet 1131 of the drain pipe 113 is also prone to freezing and even the entire drain pipe 113 is frozen, thereby blocking the drain pipe 113 and accelerating the frost on the surface of the evaporator 14. The heat of the defrost heating wire 141 is not enough to melt the ice in the drain pipe 113. Therefore, when the drain pipe 113 is blocked by ice, the frost on the surface of the evaporator 14 will also increase, thereby reducing the heat transfer capacity of the evaporator 14.

[0027] In order to solve the problem that the drain pipe 113 is blocked by ice, the utility model provides a cleaning assembly 13 in the refrigerator 1. The cleaning assembly 13 can be extended and retracted in the drain pipe 113. Figure 1 , 2 As shown, when the water inlet 1131 of the drain pipe 113 is frozen, the telescopic part 132 is used to go deep into the drain pipe 113 to break the ice at the water inlet 1131 of the drain pipe 113. When there is a lot of ice at the water inlet 1131 of the drain pipe 113, the telescopic part 132 can be controlled to repeatedly knock the ice at the water inlet 1131 to break the ice and push the ice into the evaporation dish 112 for evaporation. Since the cleaning component 13 is arranged in the freezer 12, and the freezer 12 is arranged above the drain pipe 113, it is more labor-saving for the telescopic part 132 to push the ice in the drain pipe 113 downward. In order to further clean the inner wall of the drain pipe 113, the telescopic part 132 can be extended and retracted in the drain pipe 113 while rotating to contact the inner wall of the drain pipe 113 to clean the ice debris on the inner wall of the drain pipe 113. In addition, a heating wire 114 is arranged inside or outside the drain pipe 113. When the ice in the drain pipe 113 is thick, the operation of the heating wire 114 can accelerate the melting of the ice in the drain pipe 113. After the ice in the drain pipe 113 is melted by the heating wire 114, the telescopic part 132 can more easily push out the ice cubes remaining in the drain pipe 113. When the ice in the drain pipe 113 is pushed into the evaporating dish 112, since the evaporating dish 112 is arranged on the compressor 111 or on the pipeline of the output refrigerant of the compressor 111, the heat of the compressor 111 can be used to melt the ice in the evaporating dish 112 and evaporate the water in the evaporating dish 112.

[0028] In another embodiment, not shown in the figure, the fixed portion 131 is fixed in the evaporation dish 112, and the telescopic portion 132 can be telescoped in the drain pipe 113. At this time, the telescopic portion 132 can move from the water outlet 1132 of the drain pipe 113 to the water inlet 1131 of the drain pipe 113. As the drain pipe 113 gradually moves away from the evaporator 14 from the water inlet 1131 to the water outlet 1132, the degree of ice formation from the water inlet 1131 of the drain pipe 113 to the water outlet 1132 gradually decreases. Therefore, the telescopic portion 132 moves from the water outlet 1132 of the drain pipe 113 to the water inlet 1131 to more easily break the ice in the drain pipe 113. At this time, the broken ice will be discharged from the water outlet 1132 of the drain pipe 113. In order to ensure that the inner wall of the drain pipe 113 is cleaned, the telescopic portion 132 can rotate while telescoping in the drain pipe 113 and rub against the inner wall of the drain pipe 113 to clean the inner wall of the drain pipe 113.

[0029] In addition to being used as a cleaning tool to clean the drain pipe 113, the telescopic portion 132 can also be used as a detection tool to determine whether there is ice in the drain pipe 113. The maximum displacement of the telescopic portion 132 is set to be greater than the length of the drain pipe 113. When the telescopic portion 132 is telescoped away from the length of the drain pipe 113, it proves that the telescopic portion 132 has not extended from one end of the drain pipe 113 to the other end of the drain pipe 113, thereby proving that the drain pipe 113 is blocked. In this case, the drain pipe 113 needs to be unblocked. Generally, the blockage of the drain pipe 113 is due to ice. Therefore, the heating wire 114 is used to heat the drain pipe 113 to melt the inside of the drain pipe 113, and then the telescopic portion 132 is used to push out the remaining ice in the drain pipe 113 to achieve unblocking of the drain pipe 113. In addition, in order to better determine whether the drain pipe 113 is blocked by ice, a temperature sensor 133 can be set in the drain pipe 113. When the temperature in the drain pipe 113 is 0°C or below, it proves that the freezing point of water has been reached and there is a risk of ice blockage in the drain pipe 113. Therefore, the telescopic part 132 is inserted into the drain pipe 113. When the telescopic part 132 is telescoped to a distance less than the length of the drain pipe 113, the drain pipe 113 is cleaned. The cleaning here can be to repeatedly contact the ice in the drain pipe 113 with the telescopic part 132 to crush the ice, or to use the telescopic part 132 to clean the drain pipe 113 after heating the drain pipe 113. The above is not restrictive and can be set according to the needs of those skilled in the art. All of the above are within the scope of protection of the present utility model. The refrigerator 1 can also include a displacement sensor (not shown in the figure) and a controller (not shown in the figure). When the telescopic part 132 in the cleaning component 13 is used as a detection tool, the displacement sensor can detect the displacement of the telescopic part 132. The controller is electrically connected to the displacement sensor, and the controller can control the telescopic part 132 to start according to the displacement signal.

[0030] It should be noted that the connection between the telescopic part 132 and the fixed part 131 can include multiple methods. In one embodiment (not shown in the figure), the telescopic part 132 includes a driving gear and a rotating shaft. The rotating shaft is provided with rotating teeth, and the driving gear is engaged with the rotating teeth. The rotation of the driving gear can drive the rotating shaft to rotate and telescope in the drain pipe 113. Since the rotating shaft can directly rub against the inside of the drain pipe 113, the diameter of the rotating shaft and the rotating shaft is greater than or equal to the diameter of the drain pipe 113. When the diameter of the rotating shaft is greater than the diameter of the drain pipe 113, the rotating shaft can be elastically deformed, thereby realizing telescope in the drain pipe 113. Of course, the telescopic portion 132 of the cleaning assembly 13 can also be a structure driven by a motor to telescope or rotate, or the telescopic portion 132 can be a structure in which, after extending from the mounting cavity 1311 of the fixed portion 131, the cleaning components on the side of the telescopic portion 132 spread out and contact the inner wall of the drain pipe 113, and after the telescopic portion 132 is retracted into the mounting cavity 1311, the cleaning components on the side of the telescopic portion 132 are squeezed by the side wall of the mounting cavity 1311 and retracted into the mounting cavity 1311. The above is not restrictive and can be set according to the needs of those skilled in the art. In addition, the fixed portion 131 can be set to include a mounting cavity 1311 that accommodates the telescopic portion 132. Of course, the fixed portion 131 can also be used only to fix the telescopic portion 132, and the telescopic portion 132 is arranged at one end of the fixed portion 131 after contraction. The above can also be set according to the needs of those skilled in the art.

[0031] It should also be noted that the telescopic portion 132 can be telescoped or rotated at the same time, or can be rotated or telescoped separately, and can also be set according to the needs of those skilled in the art. In addition, the heating wire can be a ring-shaped heating wire 114 wrapped around the outside of the drain pipe 113, a rod-shaped heating wire 114 arranged in the drain pipe 113, or a heating wire 114 arranged on the water receiving tray 121. As long as the heating wire 114 can heat the ice in the drain pipe 113, the above is not restrictive and can be set according to the needs of those skilled in the art. All of the above are within the scope of protection of the present utility model. In addition, the telescopic portion 132 can not only clean the ice in the drain pipe 113, but also can push out other impurities in the drain pipe 113 when there are other impurities in the drain pipe 113.

[0032] In summary, when the water inlet 1131 of the drain pipe 113 is frozen, the ice at the water inlet 1131 of the drain pipe 113 can be broken by using the telescopic part 132 to go deep into the drain pipe 113. When there is a lot of ice at the water inlet 1131 of the drain pipe 113, the telescopic part 132 can be controlled to repeatedly knock the ice at the water inlet 1131 to break the ice and push the ice into the evaporation dish 112 for evaporation. Since the freezer 12 is arranged above the drain pipe 113, it is more labor-saving for the telescopic part 132 to push the ice in the drain pipe 113 downward. In addition, the telescopic part 132 can rotate while telescoping in the drain pipe 113 to clean the ice debris on the inner wall of the drain pipe 113. A heating wire 114 is arranged in or outside the drain pipe 113. When the ice in the drain pipe 113 is thick, the heating wire 114 can accelerate the melting of the ice in the drain pipe 113.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: Drain pipes; and A cleaning component, which is controllably extendable into the drain pipe to clean blockages in the drain pipe; The cleaning assembly comprises a fixed portion and a telescopic portion, wherein the fixed portion is fixed in the refrigerator, and the telescopic portion can be telescoped in the drain pipe; The refrigerator comprises a freezing box, the water inlet of the drain pipe is arranged at the bottom of the freezing box, the fixing part is arranged in the freezing box, and the telescopic part can be telescoped in the drain pipe.

2. The refrigerator according to claim 1, characterized in that: A heating wire is arranged in the refrigerator, and the heating wire is wound outside the drain pipe or arranged inside the drain pipe.

3. The refrigerator according to claim 1, characterized in that: An evaporating dish is arranged in the refrigerator, a water outlet of the drain pipe extends into the evaporating dish, the fixing part is fixed in the evaporating dish, and the telescopic part can be telescoped in the drain pipe.

4. The refrigerator according to claim 1 or 3, characterized in that: The telescopic portion can rotate around its own rotation axis, and the telescopic portion can rub against the inner wall of the drain pipe.

5. The refrigerator according to claim 1 or 3, characterized in that: The fixing portion is provided with a mounting cavity, and the telescopic portion can be accommodated in the mounting cavity after being fully contracted.

6. The refrigerator according to claim 1 or 3, characterized in that: The maximum displacement of the telescopic portion that can be extended or retracted is greater than the length of the drain pipe.

7. The refrigerator according to claim 1, characterized in that: A temperature sensor is arranged in the drain pipe; and / or, the refrigerator further comprises a displacement sensor and a controller, wherein the displacement sensor is used to detect the displacement of the cleaning component, the controller is electrically connected to the displacement sensor, and the controller can control the start-up of the cleaning component according to the displacement signal.

8. The refrigerator according to claim 4, characterized in that: The telescopic part includes a driving gear and a rotating shaft. The rotating shaft is provided with rotating teeth. The driving gear is meshed with the rotating teeth. The rotation of the driving gear can drive the rotating shaft to rotate and telescope in the drain pipe. The diameter of the rotating shaft is greater than or equal to the diameter of the drain pipe.

Images