Automatic defrosting device for refrigeration freezer

Abstract

The present invention relates to the technical field of freezer defrosting, and specifically discloses an automatic defrosting device for a refrigerated freezer, comprising: a partition box, a sealing layer and an inflation part, wherein the partition box is inserted into a cabinet, the sealing layer is connected to the edge of the upper end of the inner wall of the partition box, an air cavity is formed between the sealing layer and the partition box, a storage cavity is formed on the inner side of the sealing layer, a frost layer is formed on the sealing layer, the inflation part is connected to the cabinet and can inflate or exhaust air into the air cavity, and the inflation part extracts the gas in the air cavity to cause the sealing layer to fold, so as to separate the frost layer from the sealing layer; the automatic defrosting device for a refrigerated freezer of the present invention shields and isolates the inner wall of the cabinet by the partition box and the sealing layer, so that the frost layer is formed on the sealing layer, thereby avoiding damage to the inner wall of the cabinet when cleaning the frost layer.

Description

Technical Field

[0001] The invention relates to the technical field of freezer defrosting, and in particular to an automatic defrosting device for a refrigerated freezer. Background Art

[0002] A freezer, also known as a refrigerator, is a refrigeration device used to store large amounts of food or specific items. It is commonly used in home, commercial or industrial environments. The basic function of a freezer is to refrigerate and keep the inside of the box at an appropriate low temperature. The refrigeration system is generally composed of four basic components: a compressor, a condenser, a capillary tube or a thermal expansion valve, and an evaporator. The refrigerant is a liquid that can boil at low temperature under low pressure and absorbs heat when boiling. The refrigerant circulates continuously in the refrigeration system. The compressor increases the gas pressure of the refrigerant, creating liquefaction conditions. When passing through the condenser, it condenses and liquefies to release heat, then reduces the pressure and temperature when passing through the capillary tube, and then boils and vaporizes to absorb heat when passing through the evaporator, thereby forming a constant low-temperature environment, delaying the growth of microorganisms, and thus extending the shelf life of items. When in use, the freezer is prone to frost on the inner wall of the freezer due to frequent opening and closing of the door, poor door sealing, or other reasons, thereby forming a frost layer. In order to avoid the frost layer affecting the use of the freezer, the frost layer on the inner wall of the freezer is usually removed after the freezer has been used for a period of time.

[0003] A Chinese patent document with announcement number CN219868708U discloses a horizontal freezer defrosting device, including a freezer, a folding cover is rotatably provided on the upper side of the freezer, four support blocks are fixedly provided at the lower end of the freezer, a movable frame is slidably provided inside the freezer, and the four sides of the movable frame are respectively in contact with the four walls of the freezer, and four triangular blocks are fixedly provided on the lower side of the movable frame, a first shovel block is fixedly provided on the lower part of the inclined surface of each triangular block, a second shovel block is fixedly provided on the middle part of the inclined surface of each triangular block, and a third shovel block is fixedly provided on the upper part of the inclined surface of each triangular block, and the first shovel block is first moved downward to contact and shovel away the outer layer of the thicker frost layer; then the second shovel block is moved downward to contact and shovel away the middle part of the thicker frost layer and the outer layer of the medium-thick frost layer; finally, the third shovel block is moved downward to completely shovel away the frost layer on the side wall of the freezer, thereby realizing the multiple shoveling of the frost layer.

[0004] However, the above patent still has the following disadvantages: the frost layer adheres to the inner wall of the freezer, and when the frost layer is removed, the inner wall of the freezer is easily damaged. Summary of the invention

[0005] The present invention provides an automatic defrosting device for a refrigeration freezer, aiming to solve the problem in the related art that a frost layer adheres to the inner wall of the freezer and the inner wall of the freezer is easily damaged when the frost layer is removed.

[0006] The automatic defrosting device of a refrigeration freezer of the present invention comprises a cabinet body, and also comprises: a defrosting mechanism, comprising a partition box, a sealing layer and an inflation part, wherein the partition box is inserted into the cabinet body, the sealing layer is connected to the edge of the upper end of the inner wall of the partition box, an air cavity is formed between the sealing layer and the partition box, a storage cavity is formed on the inner side of the sealing layer, a frost layer is formed on the sealing layer, the inflation part is connected to the cabinet body, and can inflate or exhaust air into the air cavity, and the inflation part extracts the gas in the air cavity to cause the sealing layer to fold, so as to separate the frost layer from the sealing layer.

[0007] Beneficial effect: The inner wall of the cabinet is shielded and isolated by the partition box and the sealing layer, so that the frost layer is formed on the sealing layer, thereby avoiding damage to the inner wall of the cabinet when cleaning the frost layer.

[0008] Preferably, the defrosting mechanism further comprises five protrusions, which are respectively connected to the four sides of the inner wall and the inner bottom wall of the partition box, and the sealing layer can be attached to the protrusions after the gas in the air cavity is extracted. The effect is that the sealing layer is attached to the protrusions, which can increase the area of ​​the sealing layer to produce wrinkles, thereby enhancing the separation effect of the frost layer and the sealing layer.

[0009] Preferably, the protrusion comprises a mounting frame and a protrusion portion, the mounting frame is mounted on the inner wall of the partition box, a plurality of protrusion portions are provided, and the protrusion portions are connected to the mounting frame.

[0010] Preferably, a connection portion is connected between the sealing layer and the inner wall of the partition box, so that after the air cavity is filled with gas, a regular storage cavity can be formed inside the sealing layer. The effect is that after the air cavity is filled with gas through the connection portion, a regular storage cavity is formed inside the sealing layer to facilitate the storage of food.

[0011] Preferably, it also includes a pushing mechanism for pushing the protruding member.

[0012] Preferably, the pushing mechanism includes five pistons and five guide rails, the five pistons are respectively located on the four sides of the inner wall and the inner bottom wall of the partition box, the five guide rails are respectively connected to the four sides of the inner wall and the inner bottom wall of the partition box, the five protrusions are respectively connected to the five pistons, and the pistons can move along the length direction of the guide rails. The effect is that the pistons push the protrusions to move along the length direction of the guide rails, which can change the location where the sealing layer produces wrinkles, and enhance the effect of removing the frost layer on the sealing layer.

[0013] Preferably, the guide rail is provided with a guide groove which is curved, and the protruding member is slidably connected to the guide groove on the guide rail. The effect is that when the protruding member moves along the length direction of the guide rail, the guide groove enables the protruding member to reciprocate in the width direction of the guide rail, further enhancing the effect of removing the frost layer on the sealing layer.

[0014] Preferably, the sealing layer is made of rubber material.

[0015] The beneficial effects of the present invention are:

[0016] 1. The inner wall of the cabinet is shielded and isolated by a partition box and a sealing layer, so that the frost layer is formed on the sealing layer to avoid damage to the inner wall of the cabinet when cleaning the frost layer. At the same time, the gas in the air cavity is extracted by the inflation part to make the sealing layer wrinkle, thereby separating the frost layer from the sealing layer to facilitate the removal of the frost layer.

[0017] 2. After the gas in the air cavity is extracted, the sealing layer is attached to the protruding piece, and the protruding piece can increase the area of ​​the sealing layer where wrinkles are generated, so as to enhance the separation effect of the frost layer and the sealing layer.

[0018] 3. By pushing the protrusion to move in the length direction of the guide rail through the piston part, the location where wrinkles are generated in the sealing layer can be changed, thereby enhancing the effect of clearing the frost layer on the sealing layer.

[0019] 4. When the protruding piece moves along the length direction of the guide rail, the protruding piece can move back and forth in the width direction of the guide rail through the guide groove, further enhancing the effect of removing the frost layer on the sealing layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0021] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the sealing layer of the present invention.

[0023] Figure 4 It is a cross-sectional three-dimensional structural schematic diagram of the defrosting mechanism and the pushing mechanism of the present invention.

[0024] Figure 5 It is a side structural schematic diagram of the defrosting mechanism and the pushing mechanism of the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the defrosting mechanism and the pushing mechanism of the present invention.

[0026] Reference numerals:

[0027] 1. Cabinet; 2. Defrosting mechanism; 21. Partition box; 22. Sealing layer; 23. Air cavity; 24. Inflatable part 1; 25. Connecting part; 26. Storage cavity; 27. Protruding piece; 271. Mounting frame; 272. Protruding part; 3. Pushing mechanism; 31. Air pipe; 32. Inflatable part 2; 33. Piston part; 34. Guide rail; 35. Guide groove. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0029] like Figures 1 to 6 As shown, the automatic defrosting device for a refrigerated freezer of the present invention comprises a cabinet 1, a defrosting mechanism 2 and a pushing mechanism 3. The cabinet 1 is used to contain food. A refrigeration mechanism (the refrigeration mechanism is a prior art and is not shown in the figure) is installed in the cabinet 1 for forming a constant low-temperature environment in the cabinet 1. The defrosting mechanism 2 is connected to the cabinet 1 for removing the frost layer formed in the cabinet 1 to avoid the formation of the frost layer on the inner wall of the cabinet 1, thereby avoiding damage to the inner wall of the cabinet 1 when removing the frost layer. The pushing mechanism 3 is connected to the defrosting mechanism 2 and can push the defrosting mechanism 2 to enhance the defrosting effect on the cabinet 1.

[0030] like Figures 1 to 4 As shown, the defrosting mechanism 2 includes a partition box 21, a sealing layer 22, an inflatable portion 24, a connecting portion 25 and a protruding piece 27. The partition box 21 is inserted into the cabinet 1. The top of the partition box 21 is open. The sealing layer 22 is connected to the edge of the upper end of the inner wall of the partition box 21. A sealed air cavity 23 is formed between the sealing layer 22 and the partition box 21. A storage cavity 26 is formed on the inner side of the sealing layer 22 for storing food. The sealing layer 22 is made of rubber material. The cabinet 1 uses During use, a frost layer is formed on the sealing layer 22 to avoid damage to the inner wall of the cabinet 1 when removing the frost layer. At the same time, the sealing layer 22 and the air cavity 23 can buffer the food placed in the storage cavity 26 to avoid damage to the food placed in the cabinet 1. The inflation part 24 is connected to the outside of the cabinet 1, and the inflation part 24 is connected to the partition box 21 and communicated with the air cavity 23. The inflation part 24 can extract the gas in the air cavity 23 or inflate the air into the air cavity 23.

[0031] Continue to refer Figures 1 to 4 As shown, there are five protrusions 27, all of which are located in the air cavity 23, and the five protrusions 27 are respectively connected to the four sides of the inner wall and the inner bottom wall of the partition box 21, so that after the gas in the air cavity 23 is extracted, the sealing layer 22 can fit on the protrusions 27, so that the sealing layer 22 forms wrinkles and the frost layer is separated from the sealing layer 22, and the connecting part 25 is connected between the sealing layer 22 and the inner wall of the partition box 21, so that after the air cavity 23 is filled with gas, a regular storage cavity 26 can be formed on the inner side of the sealing layer 22 to facilitate the storage of food.

[0032] Continue to refer Figures 1 to 4As shown, the protrusion 27 includes a mounting frame 271 and a protrusion 272. The mounting frame 271 is installed on the inner wall of the partition box 21. The protrusion 272 is provided in plurality. The plurality of protrusions 272 are all connected to the mounting frame 271. After the gas in the air cavity 23 is discharged, the sealing layer 22 can be attached to the protrusion 272 so that the sealing layer 22 forms wrinkles, so as to facilitate the removal of the frost layer on the sealing layer 22.

[0033] When in use, gas is filled into the air cavity 23 through the inflation portion 24, so that the sealing layer 22 forms a regular storage cavity 26 under the restriction of the connecting portion 25, and after food is placed in the storage cavity 26, the cabinet 1 is closed. During use, a frost layer is formed in the sealing layer 22.

[0034] When removing the frost layer, open the cabinet 1 and take out the food in the storage cavity 26, then start the inflation part 24, and extract the gas in the air cavity 23 through the inflation part 24, so that the sealing layer 22 fits on the raised part 272 and forms wrinkles, thereby separating the frost layer from the sealing layer 22, and finally take out the frost layer in the storage cavity 26 and remove it.

[0035] like Figures 1 to 6 As shown, the pushing mechanism 3 includes an air pipe 31, an air-filling part 32, a piston part 33 and a guide rail 34. The air pipe 31 is connected to the partition box 21, and the air-filling part 32 is connected to the outside of the cabinet 1. The air-filling part 32 is connected to the air pipe 31, and the air-filling part 32 can transport gas into the air pipe 31 or extract the gas in the air pipe 31. The piston part 33 is set to five, and the five piston parts 33 are respectively located on the four sides of the inner wall and the inner bottom wall of the partition box 21, and the five piston parts 33 are plugged into the air pipe 31. By exhausting or supplying air to the air pipe 31 through the second inflation part 32, the piston part 33 can be driven to extend into or out of the air pipe 31. The five guide rails 34 are respectively connected to the four sides of the inner wall and the inner bottom wall of the partition box 21. The five protrusions 27 are respectively connected to the five piston parts 33, so that when the five piston parts 33 move, the five protrusions 27 can be driven to move along the length direction of the five guide rails 34 respectively, so as to change the fold position of the sealing layer 22, thereby enhancing the effect of removing the frost layer on the sealing layer 22.

[0036] Continue to refer Figures 1 to 6 As shown, the pushing mechanism 3 also includes five guide rails 34, on which guide grooves 35 are provided, and the guide grooves 35 are curved. The five protrusions 27 are slidably connected to the guide grooves 35 on the five guide rails 34, respectively. During the movement of the protrusions 27 along the length direction of the guide rails 34, the guide grooves 35 can enable the protrusions 27 to reciprocate in the width direction of the guide rails 34, thereby further enhancing the effect of clearing the frost layer on the sealing layer 22.

[0037] Working principle:

[0038] When in use, gas is filled into the air cavity 23 through the gas-filling part 24, so that the sealing layer 22 forms a regular storage cavity 26 under the restriction of the connecting part 25. After the food is placed in the storage cavity 26, the cabinet 1 is closed. During use, a frost layer is formed in the sealing layer 22;

[0039] When removing the frost layer, the cabinet 1 is opened, and the food in the storage cavity 26 is taken out, and then the gas-filling part 24 is started to extract the gas in the gas cavity 23 through the gas-filling part 24, so that the sealing layer 22 is attached to the protrusion 272 and wrinkles are formed, thereby separating the frost layer from the sealing layer 22;

[0040] The second inflatable part 32 is started to evacuate or deliver air to the air pipe 31, driving the piston part 33 to extend into or out of the air pipe 31, so that when the five piston parts 33 move, the five protrusions 27 are driven to move along the length direction of the five guide rails 34 respectively, so as to change the fold position of the sealing layer 22;

[0041] When the protruding member 27 moves along the length direction of the guide rail 34, the protruding member 27 can reciprocate in the width direction of the guide rail 34 through the guide groove 35;

[0042] The gas filling part 24 is started to fill the gas cavity 23 so that the sealing layer 22 forms a regular storage cavity 26 under the restriction of the connecting part 25, and the frost layer cleaned out of the storage cavity 26 is taken out by the staff.

[0043] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic defrosting device for a refrigerated freezer, comprising a cabinet body, characterized in that: Also includes: The defrosting mechanism comprises a partition box, a sealing layer and an inflatable part, wherein the partition box is inserted into the cabinet, the sealing layer is connected to the edge of the upper end of the inner wall of the partition box, an air cavity is formed between the sealing layer and the partition box, a storage cavity is formed on the inner side of the sealing layer, a frost layer is formed on the sealing layer, the inflatable part is connected to the cabinet, and can inflate or exhaust air into the air cavity, and the inflatable part extracts the gas in the air cavity to fold the sealing layer so that the frost layer is separated from the sealing layer; the defrosting mechanism also comprises five protrusions, which are respectively connected to the four sides of the inner wall and the inner bottom wall of the partition box, and after the gas in the air cavity is extracted, the sealing layer can be attached to the protrusions; The pushing mechanism is used to push the protruding member; the pushing mechanism includes an air pipe, two inflation parts, five piston parts and five guide rails, the air pipe is connected in the partition box, the two inflation parts are connected outside the cabinet, the two inflation parts are connected to the air pipe, the two inflation parts can transport gas into the air pipe or extract gas from the air pipe, the five piston parts are respectively located on the four sides of the inner wall and the inner bottom wall of the partition box, and the five piston parts are all plugged into the air pipe, and the air is extracted or transported to the air pipe through the two inflation parts, which can drive the piston part to extend into or out of the air pipe, the five guide rails are respectively connected to the four sides of the inner wall and the inner bottom wall of the partition box, the five protruding members are respectively connected to the five piston parts, and when the five piston parts move, they can drive the five protruding members to move respectively along the length direction of the five guide rails to change the fold position of the sealing layer.

2. The automatic defrosting device for a refrigerating freezer according to claim 1, characterized in that: The protruding member comprises a mounting frame and a protruding portion. The mounting frame is mounted on the inner wall of the partition box. A plurality of protruding portions are provided and connected to the mounting frame.

3. The automatic defrosting device for a refrigerating freezer according to claim 1, characterized in that: A connecting portion is connected between the sealing layer and the inner wall of the partition box, so that after the air cavity is filled with gas, a regular storage cavity can be formed inside the sealing layer.

4. The automatic defrosting device for a refrigerating freezer according to claim 1, characterized in that: The guide rail is provided with a guide groove which is curved, and the protruding piece is slidably connected with the guide groove on the guide rail.

5. The automatic defrosting device for a refrigerating freezer according to any one of claims 1 to 4, characterized in that: The sealing layer is made of rubber material.

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