Ice cube tray of household ice maker

Abstract

The utility model discloses an ice cube tray of household ice maker, including upper duct piece, cylinder, cylinder, the lower end face of said upper duct piece is welded with lower duct piece, and forms channel between upper duct piece and lower duct piece, the cylinder is provided with a plurality of and is welded on the inner surface of lower duct piece, the cylinder is provided with the cone setting, the cylinder is provided with the cylinder. The cylinders are welded to the outer surface of the upper pipe piece, the cylinders are sleeved with the cylinders, gaps are reserved between the cylinders, the cylinders and the cylinders are conical, when the cylinders are inserted into the cylinders, conical cavities can be formed, the bent positions in the conical cavities are smoother, flowing resistance of refrigerants in the conical cavities is small, the thickness of the cylinders can be reduced, and the cooling effect of the upper pipe piece is improved. The ice making efficiency is improved; the connecting area of the cylinder and the lower pipe piece is large, the structural strength is higher, when a refrigerant impacts the cylinder, the connecting position of the cylinder and the lower pipe piece is not prone to breakage, the risk of refrigerant leakage is reduced, and the household ice maker is safer to use.

Description

Technical Field

[0001] The utility model relates to the technical field of ice makers, in particular to an ice grid of a household ice maker. Background Art

[0002] Household ice makers can make ice cubes in about six minutes, meeting the needs of families for daily cold drinks, chilled food, etc. Compared with the traditional ice-making method of refrigerators, household ice makers are faster, can make ice cubes at any time, and are more flexible to use, so they are widely popular. Therefore, the safety of ice makers is also very important.

[0003] In related technologies, household ice makers mainly refrigerate through compressors, refrigerants, and copper tubes. The copper tubes are formed by welding an upper shell a and a lower shell b, and a baffle c is provided between the upper shell a and the lower shell b. The baffle c makes certain restrictions on the flow of the refrigerant, so that the refrigerant conducts low temperature to the copper tube, and the water can be frozen into ice when the copper tube is put into water.

[0004] However, the baffle c is a sheet-shaped cuboid, which is difficult to match the internal shape of the upper shell a, resulting in an irregular flow space, a slow flow rate of the refrigerant, and a low ice-making efficiency. The thickness of the upper shell a is also relatively large, resulting in slow cold quantity conduction, which also affects the ice-making efficiency. Summary of the Invention

[0005] The purpose of the utility model is to provide an ice grid of a household ice maker to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An ice grid of a household ice maker, including an upper pipe piece, the lower end surface of the upper pipe piece is welded with a lower pipe piece, and a channel is formed between the upper pipe piece and the lower pipe piece;

[0007] Cylinders, several cylinders are provided and welded on the inner surface of the lower pipe piece, and the cylinders are arranged in a conical shape;

[0008] Cylindrical tubes, several cylindrical tubes are provided and welded on the outer surface of the upper pipe piece, the cylindrical tubes are sleeved outside the cylinders, and a gap is reserved between the cylinders and the cylindrical tubes. Through the design of the refrigerant channel, the refrigerant flow rate is controlled to achieve the optimal refrigeration state. The gap size around the cylinders is 1.9 ± 0.15 mm, the gap is a regular cone, and there are few bends, reducing the refrigerant flow resistance and improving the ice-making efficiency.

[0009] Further, the upper pipe piece and the lower pipe piece are U-shaped, and refrigerant inlets and outlets are formed at both ends of the upper pipe piece and the lower pipe piece, so that the refrigerant can circulate.

[0010] Further, a fixing piece is welded on the side surface of the lower pipe piece, and the surface of the fixing piece is provided with round holes, and the ice grid can be fixedly installed on the ice maker.

[0011] Further, the upper segment and the lower segment are welded and fixed, and the weld is ground smooth.

[0012] A method for manufacturing an ice tray specifically includes the following steps:

[0013] Step 1: Material preparation. Select metal materials and process them into an upper segment, a cylinder, a lower segment, a column, and a fixing piece.

[0014] Step 2: Precision grinding. Grind the welding surfaces of the upper segment and the lower segment, and deburr the surfaces of the upper segment and the lower segment.

[0015] Step 3: Welding. After aligning the upper segment and the lower segment, use a welding machine for welding. After welding, grind the weld of the upper segment and the lower segment to ensure that the surface of the ice tray is smooth and flat, facilitating the detachment of ice cubes.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] (1) Both the cylinder and the column are conical. When the column is inserted into the cylinder, a conical cavity is formed. The bend inside the conical cavity is smoother, the flow resistance of the refrigerant in the conical cavity is small, and the thickness of the cylinder can also be reduced, improving the ice-making efficiency.

[0018] (2) The connection area between the column and the lower segment is large, and the structural strength is higher. When the refrigerant impacts the column, the connection between the column and the lower segment is not easily broken, reducing the risk of refrigerant leakage and making the household ice maker safer to use. Description of the Drawings

[0019] Figure 1 Cross-sectional view of a copper tube in the prior art

[0020] Figure 2 Perspective view of the present utility model;

[0021] Figure 3 Exploded structural schematic diagram of the present utility model;

[0022] Figure 4 Structural schematic diagram of the connection between the lower segment and the cylinder of the present utility model;

[0023] Figure 5 Cross-sectional view schematic diagram of the connection between the cylinder and the column of the present utility model.

[0024] In the figure: a, upper shell; b, lower shell; c, retaining piece;

[0025] 1, upper segment; 2, lower segment; 3, refrigerant inlet; 4, refrigerant outlet; 5, cylinder; 6, fixing piece; 7, round hole; 8, column. Specific Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0027] Please refer to Figure 2-5 , the present utility model provides a technical solution: an ice tray for a household ice maker, including an upper tube piece 1, the lower end surface of the upper tube piece 1 is welded with a lower tube piece 2, and a channel is formed between the upper tube piece 1 and the lower tube piece 2; after the upper tube piece 1 and the lower tube piece 2 are butted, they are tubular, which is convenient for passing refrigerant;

[0028] Cylinders 8, several cylinders 8 are provided and welded on the inner surface of the lower tube piece 2, and the cylinders 8 are arranged in a conical shape;

[0029] Cylinders 5, several cylinders 5 are provided and welded on the outer surface of the upper tube piece 1, the cylinders 5 are sleeved outside the cylinders 8, and a gap is reserved between the cylinders 8 and the cylinders 5. Through the design of the refrigerant channel, the refrigerant flow rate is controlled to achieve the optimal refrigeration state. The gap size around the cylinder 8 is 1.9 ± 0.15 mm, and the gap is a conical cavity. The cylinder 8 occupies the space inside the lower tube piece 2 and blocks it, ensuring that the refrigerant flows into the conical cavity from bottom to top, and then enters the next conical cavity, and the cold quantity is transferred to the block, and the ice making time can be shortened.

[0030] In this embodiment, as Figure 2 shown, the upper tube piece 1 and the lower tube piece 2 are U-shaped, and refrigerant inlets 3 and refrigerant outlets 4 are formed at both ends of the upper tube piece 1 and the lower tube piece 2. The upper tube piece 1 and the lower tube piece 2 can also be serpentine or coiled, and can be designed according to requirements.

[0031] In this embodiment, as Figure 1 shown, a fixing piece 6 is welded on the side surface of the lower tube piece 2, and the fixing piece 6 is provided with round holes 7 on its surface. Screws are passed through the round holes 7, and the screws are screwed to the ice maker to realize the assembly of the ice tray and the ice maker.

[0032] A manufacturing method of an ice tray specifically includes the following steps:

[0033] Step 1, material preparation, select metal materials and process them into the upper tube piece 1 and the cylinders 5, as well as the lower tube piece 2, the cylinders 8, and the fixing piece 6. It is preferred to select materials with good heat conduction effects, such as commonly used copper and aluminum;

[0034] Step 2: Fine grinding. Grind the welding surfaces of the upper segment 1 and the lower segment 2. After welding, the sealing effect is good. Deburr the surfaces of the upper segment 1 and the lower segment 2 to prevent the burrs from jamming the ice cubes.

[0035] Step 3: Welding. After aligning the upper segment 1 and the lower segment 2, use a welding machine for welding. Grind the welds of the upper segment 1 and the lower segment 2 after welding. Conduct a sealing test on the upper segment 1 and the lower segment 2 to ensure that there is no refrigerant leakage problem.

[0036] Specifically, during use, the ice tray is installed on the ice maker. The refrigerant inlet 3 and the refrigerant outlet 4 are connected to the refrigerant circulation pipe. The cylinder 5 is inserted into the water box. When the refrigerant flows between the upper segment 1 and the lower segment 2, the cylinder 8 blocks the flow space of the lower segment 2, which can guide the refrigerant to flow into the conical cavity between the cylinder 5 and the cylinder 8. The refrigerant flow direction is as Figure 2 shown. The cold quantity of the refrigerant is transferred to the cylinder 5, and the cylinder 5 freezes the water into ice. The ice maker drives the separation of the water box and the cylinder 5. The compressor of the ice maker controls the refrigerant to generate heat, and the refrigerant heats the cylinder 5. At this time, the ice cubes fall from the cylinder 5, and then the refrigeration is restored. The cylinder 5 is inserted into the water box again to achieve the preparation of ice cubes.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ice tray for a household ice maker, characterized in that, Comprising: An upper segment (1), a lower segment (2) is welded to the lower end surface of the upper segment (1), and a channel is formed between the upper segment (1) and the lower segment (2); Cylinders (8), a plurality of the cylinders (8) are provided and welded to the inner surface of the lower segment (2), and the cylinders (8) are arranged in a conical shape; Cylindrical tubes (5), a plurality of the cylindrical tubes (5) are provided and welded to the outer surface of the upper segment (1), the cylindrical tubes (5) are sleeved outside the cylinders (8), and a gap is reserved between the cylinders (8) and the cylindrical tubes (5), and the gap size around the cylinders (8) is 1.9 ± 0.15 mm.

2. The ice tray of a household ice maker according to claim 1, characterized in that: The upper segment (1) and the lower segment (2) are U-shaped, and a refrigerant inlet (3) and a refrigerant outlet (4) are formed at both ends of the upper segment (1) and the lower segment (2).

3. The ice tray of a household ice maker according to claim 1, wherein: A fixing piece (6) is welded to the side surface of the lower segment (2), and a round hole (7) is provided on the surface of the fixing piece (6).

4. The ice tray of a household ice maker according to claim 1, wherein: The upper segment (1) and the lower segment (2) are welded and fixed, and the weld is ground flat.

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