Combined refrigerator defrosting chamber

Abstract

The utility model provides a combined refrigerator defrosting chamber which comprises a refrigerator body and an evaporator, a refrigerator freezing chamber and an evaporation bin are arranged in the refrigerator body, the evaporator is arranged in the evaporation bin, a protective cover is arranged in the refrigerator body in a clamped mode, and the protective cover is arranged between the refrigerator freezing chamber and the evaporation bin. A graphene heating film is arranged on the side, close to the evaporator, of the protective cover and tightly attached to the evaporator. The graphene heating film is connected to the protective cover and tightly attached to the evaporator, the purpose of convenient disassembly and assembly is achieved, through the combined action of the graphene heating film and the electrode strips, the heating and defrosting area of the evaporator is expanded, defrosting can be conveniently conducted according to different frosting degrees, and the purpose of energy saving is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerator defrosting, in particular to a combined refrigerator defrosting chamber. Background Art

[0002] In the prior art, when accelerating the defrosting speed of the evaporator inside the refrigerator, a defrost heater is usually installed on the evaporator to accelerate the defrosting speed of the evaporator. For example, a graphene coating is applied to the fins and coils of the evaporator to quickly remove the frost condensed on the fins and coils. However, when using such a device, the graphene coating cannot be removed, which causes the graphene coating to become uneven or have gaps after long-term use, resulting in increased thermal resistance or poor heat conduction, affecting the heat dissipation effect of the evaporator.

[0003] Therefore, a combined refrigerator defrosting device is needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a combined refrigerator defrosting chamber to overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is specifically implemented as follows:

[0006] The utility model provides a combined refrigerator defrost chamber, comprising a refrigerator body and an evaporator, wherein a refrigerator freezer chamber and an evaporation chamber are arranged inside the refrigerator body, and the evaporation chamber is arranged inside the refrigerator freezer chamber, and the evaporator is arranged in the evaporation chamber, a protective cover is clamped inside the refrigerator body, and the protective cover is arranged between the refrigerator freezer chamber and the evaporation chamber, and a graphene heating film is arranged on a side of the protective cover close to the evaporator, and the graphene heating film is in close contact with the evaporator.

[0007] The graphene heating film includes two layers of PET protective film and a substrate film, and the substrate film is arranged between the two layers of PET protective films, and the substrate film is coated with a large graphene heating coating and a small graphene heating coating respectively, and the small graphene heating coating is located at the lower side of the large graphene heating coating, and both sides of the large graphene heating coating and the small graphene heating coating are connected to electrode strips, and the electrode strips are provided in two groups and are arranged in parallel on the substrate film, and the electrode strips are respectively placed on the left and right sides of the evaporator, and the small graphene heating coating is placed on the lower side of the evaporator.

[0008] As a further solution of the utility model, buckles are provided on both sides of the left and right sides of the shield, and the buckles are rotatably connected to the shield through a rotating shaft, and a torsion spring is sleeved on the rotating shaft. Slots are opened on both sides of the left and right sides of the refrigerator body, and the buckles are snapped into the slots.

[0009] As a further solution of the utility model, a protrusion is integrally connected to the front end of the buckle, and the protrusion passes through the opening on the shield forward and extends to the front side of the shield.

[0010] As a further solution of the utility model, an air inlet is provided at the bottom of the protective cover.

[0011] As a further solution of the utility model, heat insulation cotton is arranged between the graphene heating film and the protective cover.

[0012] As a further solution of the utility model, a double-sided tape is arranged between the graphene heating film and the protective cover, and the graphene heating film is connected to the protective cover through the double-sided tape.

[0013] As a further solution of the utility model, the large graphene heating coating and the small graphene heating coating on the graphene heating film are both connected to the electrode strips, and the electrode strips are electrically connected to the main controller through wires, and the main controller is electrically connected to the temperature detection sensor through wires, and the main controller and the temperature detection sensor are both arranged in the evaporation chamber.

[0014] As a further solution of the utility model, a water leakage port is opened on the bottom of the graphene heating film, and the water leakage port is arranged on one side of the small graphene heating coating and on the lower side of the large graphene heating coating.

[0015] As a further solution of the utility model, a plurality of return air holes are opened on the bottom of the graphene heating film, and the return air holes are arranged between the large graphene heating coating and the small graphene heating coating, and the position of the return air holes is higher than the position of the water leakage port.

[0016] The utility model provides a combined refrigerator defrosting chamber, which has the beneficial effects of: by connecting the graphene heating film to the shield and closely attached to the evaporator, the purpose of convenient disassembly and assembly is achieved, and through the joint action of the graphene heating film and the electrode strip, the heating and defrosting area of ​​the evaporator is expanded, and it is also convenient to defrost different degrees of frost, thereby achieving the purpose of energy saving;

[0017] Through the joint action of the graphene heating coating and the electrode strips, irregular frosted areas can be defrosted, ensuring the defrosting effect, and also ensuring the uniformity of the graphene heating coating preparation, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the cross-sectional structure of the graphene heating film in the utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the graphene heating film in the utility model.

[0021] Figure 3 It is a top view of the protective cover in the present utility model.

[0022] Figure 4 It is a side view of the protective cover in the utility model.

[0023] Figure 5 It is the front view of the protective cover in the utility model.

[0024] Figure 6 It is a structural schematic diagram of the utility model.

[0025] In the figure: 1. Refrigerator body; 2. Evaporator; 3. Protective cover; 4. Graphene heating film; 5. Insulation cotton; 6. Electrode strips; 7. Large graphene heating coating; 8. Small graphene heating coating; 9. Water leakage; 10. Return air hole; 31. Buckle; 41. PET protective film; 42. Base film. DETAILED DESCRIPTION

[0026] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0027] See also Figure 1-6 A combined refrigerator defrost chamber provided by an embodiment of the utility model includes a refrigerator body 1 and an evaporator 2. A refrigerator freezer chamber and an evaporation chamber are arranged inside the refrigerator body 1, and the evaporation chamber is arranged inside the refrigerator freezer chamber. The evaporator 2 is arranged in the evaporation chamber. A protective cover 3 is clamped inside the refrigerator body 1, and the protective cover 3 is arranged between the refrigerator freezer chamber and the evaporation chamber. A graphene heating film 4 is arranged on the side of the protective cover 3 close to the evaporator 2, and the graphene heating film 4 is in close contact with the evaporator 2.

[0028] The graphene heating film 4 includes two layers of PET protective films 41 and a substrate film 42, and the substrate film 42 is arranged between the two layers of PET protective films 41. The substrate film 42 is coated with a large graphene heating coating 7 and a small graphene heating coating 8, respectively, and the small graphene heating coating 8 is located on the lower side of the large graphene heating coating 7. Both sides of the large graphene heating coating 7 and the small graphene heating coating 8 are connected to the electrode strips 6. There are two groups of electrode strips 6, which are arranged in parallel on the substrate film 42. The electrode strips 6 are respectively placed on the left and right sides of the evaporator 2, and the small graphene heating coating 8 is placed on the lower side of the evaporator 2.

[0029] The large graphene heating coating 7 and the small graphene heating coating 8 on the graphene heating film 4 are both connected to the electrode strip 6, and the electrode strip 6 is electrically connected to the main controller through a wire, and the main controller is electrically connected to the temperature detection sensor through a wire. The main controller and the temperature detection sensor are both arranged in the evaporation chamber.

[0030] During use of the utility model, the graphene heating film 4 is connected to the protective cover 3 through a double-sided tape, and the left and right sides and the bottom of the graphene heating film 4 are bent inward, and then the protective cover 3 is clamped to the inside of the refrigerator body 1 through the buckle 31, so that the evaporation chamber and the freezer chamber inside the refrigerator body 1 are separated. At the same time, the electrode strips 6 on both sides of the graphene heating film 4 are respectively arranged on the left and right sides of the evaporator 2, and the small graphene heating coating 8 at the bottom is placed on the lower side of the evaporator 2. When the protective cover 3 needs to be disassembled, it is only necessary to bend the buckle 31, and then the buckle 31 is rotated and separated from the slot, and the protective cover 3 and the graphene heating film 4 can be removed from the refrigerator body 1.

[0031] Temperature value A and temperature value B are set inside the main controller, and temperature value A is lower than temperature value B. After the compressor in the refrigerator runs for a certain period of time, the temperature detection sensor detects the surface temperature of the evaporator 2 in the evaporation chamber and transmits the detected temperature value to the main controller. If the detected value is higher than temperature value B, the large graphene heating coating 7, the small graphene heating coating 8 and the electrode strip 6 do not work; if the detected temperature value is higher than temperature value A and lower than temperature value B, the large graphene heating coating 7 on the upper side and the electrode strips 6 connected on both sides are started, while the small graphene heating coating 8 on the lower side does not work. At this time, the large graphene heating coating 7 and the electrode strip 6 work and generate heat, and transfer the heat to the main controller. It is passed to the evaporator 2, thereby defrosting the surface of the evaporator 2; if the detected temperature value is lower than the temperature value A, the large graphene heating coating 7 on the upper side and the small graphene heating coating 8 and the electrode strip 6 on the lower side are started at the same time, and then the large graphene heating coating 7, the small graphene heating coating 8 and the electrode strip 6 are operated simultaneously to defrost the evaporator 2, which expands the heating area of ​​the evaporator 2 and improves the defrosting efficiency. At the same time, the two groups of electrode strips 6 are close to the left and right sides of the evaporator 2, which not only expands the heating area on the left and right sides of the evaporator 2, but also further improves the defrosting efficiency of the frost on the left and right sides of the evaporator 2. Finally, the defrosted liquid water is discharged through the drainage holes on the refrigerator body 1.

[0032] like Figure 3 and Figure 5 As shown, buckles 31 are provided on both sides of the left and right sides of the shield 3, and the buckles 31 are rotatably connected to the shield 3 through a rotating shaft, and a torsion spring is sleeved on the rotating shaft. Slots are provided on both sides of the left and right sides of the refrigerator body 1, and the buckles 31 are engaged in the slots. A protrusion is integrally connected to the front end of the buckle 31, and the protrusion passes through the opening on the shield 3 forward and extends to the front side of the shield 3. By bending the protrusion, it is convenient to drive the buckle 31 to rotate around the rotating shaft, so that the buckle 31 and the slot can be connected and separated conveniently, and the rotating buckle 31 can be reset by the torsion spring, so that the shield 3 and the refrigerator body 1 are combined and assembled together.

[0033] like Figure 5 As shown, an air inlet is provided at the bottom of the protective cover 3. The design of the air inlet facilitates the air in the freezer compartment of the refrigerator to enter the evaporation chamber through the air inlet, thereby cooling the air. The cooled air then flows back from the top of the evaporation chamber to the freezer compartment of the refrigerator.

[0034] like Figure 1 and Figure 2 As shown, a water leakage port 9 is opened on the bottom of the graphene heating film 4, and the water leakage port 9 is arranged on one side of the small graphene heating coating 8 and on the lower side of the large graphene heating coating 7. Through the design of the water leakage port 9, it is convenient for the frost at the bottom of the evaporator 2 to be heated and melted, fall through the water leakage port 9, and be discharged through the drainage hole at the bottom of the evaporation chamber.

[0035] like Figure 1 and Figure 2 As shown, a plurality of return air holes 10 are provided on the bottom of the graphene heating film 4, and the return air holes 10 are arranged between the large graphene heating coating 7 and the small graphene heating coating 8, and the position of the return air holes 10 is higher than the position of the water leakage port 9, so that the air in the freezer compartment of the refrigerator can pass through the return air holes 10 and be cooled through the evaporator 2.

[0036] like Figure 3 As shown, a heat insulating cotton 5 is arranged between the graphene heating film 4 and the protective cover 3. The design of the heat insulating cotton 5 facilitates the heat insulation of the graphene heating film 4 close to the protective cover 3, thereby preventing heat from being transferred into the freezer compartment of the refrigerator.

[0037] like Figure 3 and Figure 4 As shown, a double-sided tape is provided between the graphene heating film 4 and the protective cover 3, and the graphene heating film 4 is connected to the protective cover 3 through the double-sided tape, thereby connecting the graphene heating film 4 and the protective cover 3 together.

[0038] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A combined refrigerator defrosting chamber, comprising a refrigerator body (1) and an evaporator (2), wherein the refrigerator body (1) is provided with a refrigerator freezer chamber and an evaporation chamber, and the evaporation chamber is arranged inside the refrigerator freezer chamber, and the evaporator (2) is arranged in the evaporation chamber, characterized in that: A protective cover (3) is provided in a snap-fitted manner inside the refrigerator body (1), and the protective cover (3) is provided between the refrigerator freezing chamber and the evaporation chamber; a graphene heating film (4) is provided on a side of the protective cover (3) close to the evaporator (2), and the graphene heating film (4) is in close contact with the evaporator (2); The graphene heating film (4) comprises two layers of PET protective films (41) and a substrate film (42), and the substrate film (42) is arranged between the two layers of PET protective films (41), and the substrate film (42) is coated with a large graphene heating coating (7) and a small graphene heating coating (8) respectively, and the small graphene heating coating (8) is located at the lower side of the large graphene heating coating (7), and both sides of the large graphene heating coating (7) and the small graphene heating coating (8) are connected to electrode strips (6), and the electrode strips (6) are provided in two groups and are arranged in parallel on the substrate film (42), and the electrode strips (6) are respectively placed on the left and right sides of the evaporator (2), and the small graphene heating coating (8) is placed at the lower side of the evaporator (2).

2. The combined refrigerator defrosting chamber according to claim 1, characterized in that: Buckles (31) are provided on both the left and right sides of the shield (3), and the buckles (31) are rotatably connected to the shield (3) via a rotating shaft, and a torsion spring is sleeved on the rotating shaft. Slots are provided on both the left and right sides of the refrigerator body (1), and the buckles (31) are snapped into the slots.

3. The combined refrigerator defrosting chamber according to claim 2, characterized in that: A protrusion is integrally connected to the front end of the buckle (31), and the protrusion passes through the opening on the shield (3) forward and extends to the front side of the shield (3).

4. The combined refrigerator defrosting chamber according to claim 2, characterized in that: An air inlet is provided at the bottom of the protective cover (3).

5. The combined refrigerator defrosting chamber according to claim 1, characterized in that: Heat insulation cotton (5) is arranged between the graphene heating film (4) and the protective cover (3).

6. The combined refrigerator defrosting chamber according to claim 1, characterized in that: A double-sided tape is provided between the graphene heating film (4) and the protective cover (3), and the graphene heating film (4) is connected to the protective cover (3) via the double-sided tape.

7. The combined refrigerator defrosting chamber according to claim 1, characterized in that: The large graphene heating coating (7) and the small graphene heating coating (8) on the graphene heating film (4) are both connected to the electrode strip (6), and the electrode strip (6) is electrically connected to the main controller via a wire, and the main controller is electrically connected to the temperature detection sensor via a wire, and the main controller and the temperature detection sensor are both arranged in the evaporation chamber.

8. The combined refrigerator defrosting chamber according to claim 1, characterized in that: A water leakage port (9) is provided on the bottom of the graphene heating film (4), and the water leakage port (9) is arranged on one side of the small graphene heating coating (8) and on the lower side of the large graphene heating coating (7).

9. The combined refrigerator defrosting chamber according to claim 8, characterized in that: A plurality of return air holes (10) are provided on the bottom of the graphene heating film (4), and the return air holes (10) are arranged between the large graphene heating coating (7) and the small graphene heating coating (8), and the position of the return air holes (10) is higher than the position of the water leakage port (9).

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