Ice cube tray of household ice maker and manufacturing method of ice cube tray

Abstract

The invention discloses an ice tray of a household ice maker and a manufacturing method, the ice tray comprises an upper pipe piece, a plurality of cylinders and a cylinder, a lower pipe piece is welded on the lower end face of the upper pipe piece, a channel is formed between the upper pipe piece and the lower pipe piece, the cylinders are welded on the inner surface of the lower pipe piece, the cylinders are arranged in a conical shape, and the cylinder is arranged in the channel. 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 invention relates to the technical field of ice making machines, in particular to an ice tray of a household ice making machine and a making method thereof. Background Art

[0002] A household ice maker can make ice cubes in six minutes, meeting the family's daily needs for cold drinks, chilled food, etc. Compared with the traditional refrigerator ice-making method, a household ice maker is fast, can make ice cubes at any time, is more flexible to use, and is widely popular, so the safety of the ice maker is also very important.

[0003] In the related art, household ice makers mainly use compressors, refrigerants, and copper tubes for refrigeration. 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 restricts the flow of the refrigerant to a certain extent, so that the refrigerant transfers the low temperature to the copper tubes. The copper tubes can be placed in water to freeze the water into ice.

[0004] However, the baffle c is a sheet-shaped rectangular parallelepiped, which is difficult to match with the internal shape of the upper shell a, resulting in an irregular flow space, slow flow speed, low ice-making efficiency, and a large thickness of the upper shell a, which leads to slow cold conduction and affects the ice-making efficiency. Summary of the invention

[0005] The object of the present invention is to provide an ice tray and a making method for a household ice maker to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an ice tray for a household ice maker, comprising an upper tube sheet, a lower tube sheet is welded to the lower end surface of the upper tube sheet, and a channel is formed between the upper tube sheet and the lower tube sheet; Cylinders, wherein a plurality of the cylinders are provided and welded to the inner surface of the lower tube segment, and the cylinders are provided in a conical shape; Cylinder, several cylinders are arranged and welded on the outer surface of the upper tube sheet, the cylinder is sleeved on the outside of the cylinder, and a gap is reserved between the cylinders. 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 is 1.9±0.15mm, the gap is a regular cone, with few bends, reducing the refrigerant flow resistance and improving the ice making efficiency.

[0007] Furthermore, the upper tube sheet and the lower tube sheet are U-shaped, and a refrigerant inlet and a refrigerant outlet are formed at both ends of the upper tube sheet and the lower tube sheet, so that the refrigerant can circulate.

[0008] Furthermore, a fixing plate is welded on the side of the lower tube plate, and a round hole is provided on the surface of the fixing plate, so that the ice tray can be fixedly installed on the ice maker.

[0009] Furthermore, the upper tube segment and the lower tube segment are welded and fixed, and the weld is ground flat.

[0010] The present invention provides a method for making an ice tray, which specifically comprises the following steps: Step 1: Material preparation: select metal materials and process them into upper tube segments and cylinders, as well as lower tube segments, cylinders, and fixed plates; Step 2: Fine grinding: grinding the welding surfaces of the upper tube segment and the lower tube segment, and deburring the surfaces of the upper tube segment and the lower tube segment; Step 3: Welding: After the upper and lower tube segments are aligned, they are welded using a welding machine. After welding, the upper and lower tube segments are smoothed at the weld to ensure that the surface of the ice tray is smooth and flat to facilitate the shedding of ice cubes.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) Both the cylinder and the column are conical. When the cylinder is inserted into the cylinder, a conical cavity is formed. The inner bend of the conical cavity is smoother, and the refrigerant has less flow resistance in the conical cavity. The thickness of the cylinder can also be reduced, thereby improving the efficiency of ice making.

[0012] (2) The connection area between the cylinder and the lower tube is large, and the structural strength is higher. When the refrigerant impacts the cylinder, the connection between the cylinder and the lower tube is not easy to break, which reduces the risk of refrigerant leakage and makes the household ice maker safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A cross-sectional view of a copper tube in the prior art Figure 2 A perspective view of the present invention; Figure 3 It is a schematic diagram of the structure of the splitting of the present invention; Figure 4 It is a structural schematic diagram of the connection between the lower tube segment and the cylinder of the present invention; Figure 5 It is a schematic cross-sectional view of the connection between the cylinder and the column of the present invention.

[0014] In the figure: a, upper shell; b, lower shell; c, baffle; 1. Upper tube segment; 2. Lower tube segment; 3. Refrigerant inlet; 4. Refrigerant outlet; 5. Cylinder; 6. Fixing plate; 7. Round hole; 8. Cylinder. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0016] See also Figure 2-5 The present invention provides a technical solution: an ice tray for a household ice maker, comprising an upper tube sheet 1, a lower tube sheet 2 is welded to the lower end surface of the upper tube sheet 1, and a channel is formed between the upper tube sheet 1 and the lower tube sheet 2; the upper tube sheet 1 and the lower tube sheet 2 are connected to form a tubular shape, which is convenient for passing refrigerant; Cylinders 8, wherein a plurality of cylinders 8 are provided and welded to the inner surface of the lower tube sheet 2, and the cylinders 8 are provided in a conical shape; Cylinder 5, several cylinders 5 are arranged and welded on the outer surface of the upper tube sheet 1, and the cylinder 5 is sleeved on the outside of the cylinder 8, and a gap is reserved between the cylinder 8 and the cylinder 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±0.15mm, and the gap is a conical cavity. The cylinder 8 occupies the space inside the lower tube sheet 2 and blocks it, ensuring that the refrigerant flows into the conical cavity from bottom to top, and then enters the next conical cavity. The cold is transferred to the block, and the ice making time can be shortened.

[0017] In this embodiment, if Figure 2 As shown, the upper tube segment 1 and the lower tube segment 2 are U-shaped, and a refrigerant inlet 3 and a refrigerant outlet 4 are formed at both ends of the upper tube segment 1 and the lower tube segment 2. The upper tube segment 1 and the lower tube segment 2 can also be serpentine or coiled, and can be designed according to requirements.

[0018] In this embodiment, if Figure 1 As shown, a fixing plate 6 is welded on the side of the lower tube sheet 2, and a round hole 7 is provided on the surface of the fixing plate 6. A screw is passed through the round hole 7, and the screw is screwed to the ice maker to realize the assembly of the ice tray and the ice maker.

[0019] The present invention provides a method for making an ice tray, which specifically comprises the following steps: Step 1: Material preparation: metal materials are selected and processed into upper tube sheet 1 and cylinder 5, lower tube sheet 2, cylinder 8 and fixing sheet 6. Materials with good thermal conductivity are preferably selected, such as commonly used copper and aluminum. Step 2: Fine grinding: grinding the welding surface of the upper tube segment 1 and the lower tube segment 2 to ensure a good sealing effect after welding, and deburring the surface of the upper tube segment 1 and the lower tube segment 2 to prevent the burrs from getting stuck in the ice cubes; Step three, welding, after the upper tube segment 1 and the lower tube segment 2 are aligned, use a welding machine to weld them, grind the welds of the upper tube segment 1 and the lower tube segment 2 after welding, and perform a sealing test on the upper tube segment 1 and the lower tube segment 2 to ensure that there will be no refrigerant leakage.

[0020] Specifically, when in 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, and the cylinder 5 is inserted into the water box. When the refrigerant flows between the upper tube sheet 1 and the lower tube sheet 2, the cylinder 8 blocks the flow space of the lower tube sheet 2, and can guide the refrigerant to flow to the conical cavity between the cylinder 5 and the cylinder 8. The refrigerant flow direction is as follows: Figure 2 As shown, the coldness of the refrigerant is transmitted to the cylinder 5, and the cylinder 5 freezes the water into ice. The ice maker drives the water box to separate from the cylinder 5, and the compressor of the ice maker controls the refrigerant to heat up. The refrigerant heats the cylinder 5, and the ice cubes fall from the cylinder 5. Then the refrigeration is restored, and the cylinder 5 is reinserted into the water box to prepare the ice cubes.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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: include: An upper tube segment (1), wherein a lower tube segment (2) is welded to the lower end surface of the upper tube segment (1), and a channel is formed between the upper tube segment (1) and the lower tube segment (2); Cylinders (8), wherein a plurality of the cylinders (8) are provided and welded to the inner surface of the lower tube segment (2), and the cylinders (8) are provided in a conical shape; Cylinders (5), wherein a plurality of cylinders (5) are provided and welded to the outer surface of the upper tube sheet (1), wherein the cylinders (5) are sleeved on the outside of the cylinder (8), and a gap is reserved between the cylinder (8) and the cylinder (5), and the size of the gap around the cylinder (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 tube sheet (1) and the lower tube sheet (2) are U-shaped, and a refrigerant inlet (3) and a refrigerant outlet (4) are formed at both ends of the upper tube sheet (1) and the lower tube sheet (2).

3. The ice tray of a household ice maker according to claim 1, characterized in that: A fixing plate (6) is welded to the side of the lower tube sheet (2), and a circular hole (7) is provided on the surface of the fixing plate (6).

4. The ice tray of a household ice maker according to claim 1, characterized in that: The upper tube segment (1) and the lower tube segment (2) are fixed by welding, and the weld is ground flat.

5. A method for making an ice tray according to any one of claims 1 to 4, characterized in that: The specific steps include: Step 1: material preparation, selecting metal materials and processing them into an upper tube segment (1) and a cylinder (5), a lower tube segment (2), a cylinder (8), and a fixing plate (6); Step 2: fine grinding: grinding the welding surfaces of the upper tube segment (1) and the lower tube segment (2), and deburring the surfaces of the upper tube segment (1) and the lower tube segment (2); Step 3: Welding: After the upper tube segment (1) and the lower tube segment (2) are aligned, welding is performed using a welding machine.

6. The method for making an ice tray according to claim 5, characterized in that: The welded upper tube segment (1) and the lower tube segment (2) are ground flat at the weld seam.

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