An ice making cylinder of an ice maker

Abstract

The utility model relates to ice maker technical field especially ice making cylinder of ice maker, including outer cylinder and coaxial setting inside inner cylinder of outer cylinder, be provided with the front sealing ring and rear sealing ring of interval distribution along the axial between outer cylinder and inner cylinder, the outer edge of front sealing ring front end surface is welded fixed with the inner side wall of outer cylinder front end part, the inner edge of front sealing ring front end surface is welded fixed with the outer side wall of inner cylinder front end part, the outer edge of rear sealing ring rear end surface is welded fixed with the inner side wall of outer cylinder rear end part, the inner edge of rear sealing ring rear end surface is welded fixed with the outer side wall of inner cylinder rear end part. Through welding fixed to four positions, make the welding device can directly from the outside of this ice making cylinder laser welding, need not to reach into the inside of this ice making cylinder welding head, can weld and manufacture to this ice making cylinder, improved the efficiency of welding procedure.

Description

Technical Field

[0001] This utility model relates to the field of ice maker technology, and in particular to an ice maker cylinder. Background Technology

[0002] As the core heat exchange component of an ice maker, the ice drum plays a crucial role in refrigerant circulation and heat exchange with water or beverages to make ice. The performance and manufacturing process of this core component directly affect the ice-making efficiency, reliability, and lifespan of the entire machine. The ice drum typically consists of inner and outer cylinders, with a channel between them for refrigerant flow. Heat exchange occurs through water or beverages in contact with the outer cylinder wall, thus achieving rapid ice making.

[0003] In existing technologies, most ice makers employ a spiral or complex-shaped refrigerant channel structure between the inner and outer cylinders. While this structure achieves heat exchange to some extent, it also introduces numerous manufacturing challenges. Specifically, in terms of welding, traditional ice makers typically require welding from the inside of the cylinder to connect and seal the inner and outer cylinders with the sealing ring. This method not only limits operating space and makes welding difficult, but also demands high precision from the welding equipment and skilled operators, resulting in low production efficiency and increased manufacturing costs.

[0004] Furthermore, if refrigerant leakage occurs after welding, traditional structures require disassembly of the cylinder or the use of special tools for internal repair due to the internal location of the weld. This process is complex, time-consuming, and labor-intensive, and may even render the entire cylinder unusable, further increasing production costs and quality risks. Therefore, this paper provides an ice-making cylinder for an ice maker to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an ice-making cylinder for an ice maker that addresses the shortcomings of existing technologies, thereby solving the technical problems of cumbersome welding and repair processes in the production of existing ice-making cylinders.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An ice-making cylinder for an ice maker includes an outer cylinder and an inner cylinder coaxially disposed inside the outer cylinder. A front sealing ring and a rear sealing ring are provided between the outer cylinder and the inner cylinder at intervals along the axial direction.

[0008] The outer edge of the front end face of the front sealing ring is welded and fixed to the inner wall of the front end of the outer cylinder to achieve a sealed connection between the front sealing ring and the outer cylinder; the inner edge of the front end face of the front sealing ring is welded and fixed to the outer wall of the front end of the inner cylinder to achieve a sealed connection between the front sealing ring and the inner cylinder; the outer edge of the rear end face of the rear sealing ring is welded and fixed to the inner wall of the rear end of the outer cylinder to achieve a sealed connection between the rear sealing ring and the outer cylinder; the inner edge of the rear end face of the rear sealing ring is welded and fixed to the outer wall of the rear end of the inner cylinder to achieve a sealed connection between the rear sealing ring and the inner cylinder.

[0009] Furthermore, the inner wall of the outer cylinder, the outer wall of the inner cylinder, the rear end face of the front sealing ring, and the front end face of the rear sealing ring together form an axially extending annular cylindrical refrigeration channel; the rear sealing ring is provided with a liquid delivery pipe and a gas delivery pipe that connect to the refrigeration channel.

[0010] Furthermore, one end of both the liquid infusion connection pipe and the gas infusion connection pipe is flush with the rear end face of the rear sealing ring, and the other end of both the liquid infusion connection pipe and the gas infusion connection pipe extends into the refrigeration channel.

[0011] Furthermore, the diameter of the infusion connection tube is smaller than that of the gas connection tube.

[0012] Furthermore, a connecting flange is provided on the outer side of the end of the outer cylinder near the rear sealing ring, and the connecting flange is formed with several fixing grooves arranged in an equidistant array along its circumference.

[0013] Furthermore, a cover plate is fixedly installed at the front end of the outer cylinder and the front end of the inner cylinder. The cover plate is used to seal the front end of the inner cylinder, and an oil seal ring is installed at the center point of the cover plate. The oil seal ring, the inner cylinder, and the outer cylinder are coaxially arranged.

[0014] Furthermore, the front end face of the front sealing ring, the inner side wall of the front end of the outer cylinder, and the outer side wall of the front end of the inner cylinder together form an annular placement groove, in which a sealing ring is placed, and the sealing ring is positioned between the cover plate and the front sealing ring.

[0015] Furthermore, the front end face of the front sealing ring is provided with several fasteners arranged in an array around its center point, and the cover plate is formed with several sleeves for fitting on the outside of the fasteners and for fixed connection thereto. The number of sleeves is the same as the number of fasteners and their positions correspond to each other.

[0016] Furthermore, an annular extension is formed on the edge of the cover plate near the front sealing ring, which is used to make an interference fit with the inner wall of the front end of the outer cylinder; an annular insert is formed in the middle of the cover plate near the front sealing ring, which is embedded in the inner cylinder and abuts against the inner wall of the inner cylinder.

[0017] The beneficial effects of this utility model are as follows: After welding the outer cylinder, inner cylinder, front sealing ring, and rear sealing ring, not only are the components fixed, but the weld sealing also ensures that there is no leakage at the connection point; furthermore, by welding and fixing the four positions, the welding device can directly perform laser welding from the outside of the ice-making cylinder without having to insert the welding head into the inside of the ice-making cylinder, thus improving the efficiency of the welding process.

[0018] In addition, if a leak is detected after welding, the rework and repair process can be carried out directly from the outside of the ice-making cylinder without any additional operations. This not only improves the yield of the welding process but also saves on processing and manufacturing costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the internal structure of the present invention from another perspective.

[0023] Figure 5 This is an exploded view of the present invention.

[0024] Figure 6 Exploded view of this utility model from another perspective

[0025] The reference numerals in the figures include:

[0026] 1. Outer cylinder; 101. Connecting flange; 102. Fixing groove; 2. Inner cylinder; 3. Front sealing ring; 4. Rear sealing ring; 401. Liquid supply connection pipe; 402. Gas supply connection pipe; 5. Placement groove; 6. Sealing ring; 601. Positioning hole; 7. Cover plate; 701. Sleeve; 702. Extension; 703. Embedded ring; 704. Reinforcing rib; 705. Mounting groove; 8. Oil seal ring; 9. Fixing component; 10. Refrigeration passage. Detailed Implementation

[0027] The ice-making cylinder of an ice maker according to this utility model will be described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-4As shown, an embodiment of the ice-making cylinder of an ice maker according to this utility model includes an outer cylinder 1 and an inner cylinder 2 coaxially disposed inside the outer cylinder 1. Both the outer cylinder 1 and the inner cylinder 2 are cylindrical and their axes are arranged transversely. A front sealing ring 3 and a rear sealing ring 4 are provided between the outer cylinder 1 and the inner cylinder 2, spaced back and forth along the axial direction. Both the front sealing ring 3 and the rear sealing ring 4 are annular structures (both have rectangular cross-sections). The outer circumference of the front sealing ring 3 is sealed and fixedly connected to the inner wall of the front end of the outer cylinder 1, and the inner circumference of the front sealing ring 3 is sealed and fixedly connected to the outer wall of the front end of the inner cylinder 2. Similarly, the outer circumference of the rear sealing ring 4 is sealed and fixedly connected to the inner wall of the rear end of the outer cylinder 1, and the inner circumference of the rear sealing ring 4 is sealed and fixedly connected to the outer wall of the rear end of the inner cylinder 2. Through the above connections, the outer cylinder 1 and the inner cylinder 2 are sealed and isolated at the front and rear ends, respectively.

[0029] The inner wall of the outer cylinder 1, the outer wall of the inner cylinder 2, the rear end face of the front sealing ring 3, and the front end face of the rear sealing ring 4 together form an axially extending annular cylindrical refrigeration channel 10. The inner cylinder 2 and the outer cylinder 1 are coaxially positioned through the tolerance fit between the inner hole and outer circle of the front sealing ring 3 and the rear sealing ring 4, ensuring that the radial width of the formed refrigeration channel 10 is uniform. The refrigeration channel 10 is used to circulate refrigerant and achieves the ice-making function through heat exchange with the ice-making area on the outside of the outer cylinder 1. The axial length of this channel is equal to the axial distance between the rear end face of the front sealing ring 3 and the front end face of the rear sealing ring 4, and the radial width is equal to the difference between the inner radius of the outer cylinder 1 and the outer radius of the inner cylinder 2.

[0030] The outer edge of the front face of the front sealing ring 3 is welded and fixed to the inner wall of the front end of the outer cylinder 1, and the inner edge of the front face of the front face of the front sealing ring 3 is welded and fixed to the outer wall of the front end of the inner cylinder 2; the outer edge of the rear face ...

[0031] A liquid-feeding connecting pipe 401 and a gas-feeding connecting pipe 402, which connect to the refrigeration channel 10, are provided on the rear sealing ring 4. The liquid-feeding connecting pipe 401 is used to directly inject liquid refrigerant into the refrigeration channel 10. After the refrigerant is converted into a gaseous state in the refrigeration channel 10, it is transported out of the refrigeration channel 10 through the gas-feeding connecting pipe 402. One end of both the liquid-feeding connecting pipe 401 and the gas-feeding connecting pipe 402 is flush with the rear end face of the rear sealing ring 4, and the other end of both the liquid-feeding connecting pipe 401 and the gas-feeding connecting pipe 402 extends into the refrigeration channel 10. The liquid-feeding connecting pipe 401 is positioned above, and the gas-feeding connecting pipe 402 is positioned below. The diameter of the liquid-feeding connecting pipe 401 is smaller than the diameter of the gas-feeding connecting pipe 402. The length direction of the liquid-feeding connecting pipe 401, the length direction of the gas-feeding connecting pipe 402, and the axial direction of the refrigeration channel 10 are parallel to each other. By extending the ends of the liquid inlet pipe 401 and the gas inlet pipe 402 into the interior of the refrigeration channel 10, the rear end face of the rear sealing ring 4 is unobstructed. When laser welding is performed on the outer edge of the rear end face of the rear sealing ring 4 to the inner side wall of the rear end of the outer cylinder 1, and on the inner edge of the rear end face of the rear sealing ring 4 to the outer side wall of the rear end of the inner cylinder 2, the welding head of the welding equipment can move freely without being blocked, thus improving the efficiency of the production and processing of this ice-making device.

[0032] Specifically, the ends of the liquid delivery pipe 401 and the gas delivery pipe 402, which are flush with the rear end face of the rear sealing ring 4, are simultaneously connected to the refrigeration system (not shown in the figure). The refrigeration system consists of a compressor, a condenser, and a throttling device. The suction end of the compressor is connected to the gas delivery pipe 402 through a pipe (to receive the refrigerant vaporized in the refrigeration channel 10), and the outlet of the throttling device is connected to the liquid delivery pipe 401 through a pipe (to deliver low-temperature liquid refrigerant to the refrigeration channel 10).

[0033] The compressor draws low-temperature, low-pressure gaseous refrigerant from the refrigeration channel 10, compresses it to become high-temperature, high-pressure gaseous refrigerant, at which point the refrigerant carries a large amount of heat converted from electrical energy. This high-temperature, high-pressure gaseous refrigerant is then pumped into the condenser (the heat dissipation section, typically composed of metal fins and a fan). The fan blows air through the condenser to dissipate heat, and the high-temperature, high-pressure refrigerant gas releases heat into the outside air. As heat dissipates, the refrigerant condenses from a gaseous state into a medium-temperature, high-pressure liquid (heat is discharged to the external environment from here). The medium-temperature, high-pressure liquid refrigerant flows through a thin capillary tube, allowing... The medium-temperature, high-pressure liquid is forced through the capillary tube, causing its pressure to drop sharply. After flowing out of the capillary tube, the refrigerant becomes a low-temperature, low-pressure liquid (mixed with a small amount of gas). The low-temperature, low-pressure liquid refrigerant is sprayed into the refrigeration channel 10. The liquid refrigerant absorbs a large amount of heat in the refrigeration channel 10 (this heat comes from water or beverages that need to be made into ice, and heat exchange occurs directly through the outer cylinder 1), and evaporates into a low-temperature, low-pressure gas. The heat is quickly absorbed, and the temperature drops below the freezing point. An ice layer gradually forms on the outer wall of the outer cylinder 1. The low-temperature, low-pressure gaseous refrigerant (mixed with a small amount of liquid) that has absorbed heat is drawn back into the compressor, and the cycle repeats.

[0034] In this embodiment, a connecting flange 101 is provided on the outer circumference of the end of the outer cylinder 1 near the rear sealing ring 4. The connecting flange 101 is formed with a plurality of fixing grooves 102 arranged in an equidistant array along its circumference. By passing a plurality of bolts through different fixing grooves 102 and tightening the bolts to fix them in the ice maker, the connecting flange 101 is pressed together during the tightening process, thereby fixing the outer cylinder 1 in the ice maker and realizing the installation of this ice maker.

[0035] like Figure 5-6 As shown, a cover plate 7 is fixedly installed at the front end of both the outer cylinder 1 and the inner cylinder 2. The cover plate 7 is used to seal the front end of the inner cylinder 2, and an oil seal ring 8 is installed at the center point of the cover plate 7. The oil seal ring 8, the inner cylinder 2, and the outer cylinder 1 are coaxially arranged. A scraper for scraping ice is sleeved on the outside of the outer cylinder 1. When an ice layer forms on the outside of the outer cylinder 1, the scraper is driven to rotate, and the ice layer on the outside of the outer cylinder 1 can be scraped off. However, in order to drive the scraper to rotate, a rotating shaft for driving the scraper to rotate passes through the inside of the inner cylinder 2 and is installed through the oil seal ring 8. One end of the rotating shaft is fixed to the scraper, and the other end of the rotating shaft is connected to the output shaft of the drive motor. By running the drive motor, the scraper can be driven to rotate under the transmission action of the rotating shaft. In this embodiment, by setting a cover plate 7 and an oil seal ring 8, when the external drive motor drives the rotating shaft and scraper to rotate, the oil seal ring 8 seals the hinge between the rotating shaft and the cover plate 7, thereby preventing water or beverages around the ice maker from leaking out from the hinge between the rotating shaft and the cover plate 7.

[0036] The front end face of the front sealing ring 3, the inner side wall of the front end of the outer cylinder 1, and the outer side wall of the front end of the inner cylinder 2 together form an annular placement groove 5. A sealing ring 6, which is a silicone sealing ring, is placed in the placement groove 5 and positioned between the cover plate 7 and the front sealing ring 3. By setting the sealing ring 6, the sealing performance between the cover plate 7 and the front end of the outer cylinder 1, and between the cover plate 7 and the front end of the inner cylinder 2, is improved, preventing water or beverages from leaking out from the gap between the cover plate 7 and the outer cylinder 1, and between the cover plate 7 and the inner cylinder 2.

[0037] To achieve the fixed installation of the cover plate 7, a number of fixing members 9 are arranged in an array around the center point on the front end face of the front sealing ring 3. The cover plate 7 is formed with a number of sleeves 701 for fitting over and fixing to the outside of the fixing members 9. The number of sleeves 701 is the same as the number of fixing members 9 and their positions correspond. When the cover plate 7 is installed at the front end of the outer cylinder 1 and the front end of the inner cylinder 2, each sleeve 701 is fitted over the outside of a different fixing member 9. Then, the threaded part of the bolt passes through the sleeve 701 and is threadedly connected to the corresponding fixing member 9. The threaded part of the bolt is placed on the outside of the cover plate 7. After the bolt passes through the sleeve 701 and is tightened on the fixing member 9, the cover plate 7 can be fixedly installed at the front end of the outer cylinder 1 and the front end of the inner cylinder 2.

[0038] In addition, a number of positioning holes 601 are formed on the sealing ring 6 for the fasteners 9 and the sleeve 701 to pass through. The number of positioning holes 601 is the same as the number of fasteners 9 and their positions correspond. By setting the positioning holes 601, the fasteners 9 and the sleeve 701 can be fixedly connected. Furthermore, during the process of inserting the sealing ring 6 into the placement groove 5, the fasteners 9 pass through the positioning holes 601, which can play a certain positioning role for the sealing ring 6.

[0039] The cover plate 7 has an annular extension 702 formed on the edge near the front sealing ring 3. The extension 702 is used for interference fit with the inner wall of the front end of the outer cylinder 1. An annular insert 703 is formed at the middle of the cover plate 7 near the front sealing ring 3. The insert 703 is embedded in the inner cylinder 2 and abuts against the inner wall of the inner cylinder 2. When the cover plate 7 is installed at the front end of the outer cylinder 1 and the front end of the inner cylinder 2, the extension 702 extends to the inner side of the front end of the outer cylinder 1 and is interference fit with it. At the same time, the insert 703 is embedded in the interior of the front end of the inner cylinder 2. After the cover plate 7 is installed, the combined effect of the extension 702 and the insert 703 not only improves the structural strength of the ice cream cone, but also improves the accuracy of the cover plate 7 during installation.

[0040] In addition, the inner side of the ring 703 is provided with a reinforcing rib 704 to strengthen the overall structural strength of the cover plate 7; by providing the reinforcing rib 704, the cover plate 7 will not deform after long-term exposure to alternating hot and cold environments, thus improving the quality of the ice-making cone.

[0041] An installation slot 705 for mounting a temperature sensor is provided inside the ring 703. The sensing end of the temperature sensor passes through the cover plate 7 and extends to its outer side to detect the temperature of the water or beverage outside the ice maker. When the temperature of the water or beverage outside the ice maker reaches a specified temperature, it is detected by the sensing end of the temperature sensor, which transmits the temperature information to the ice maker, and the ice maker controls the refrigeration system to stop operating. Conversely, when the sensing end of the temperature sensor detects that the temperature of the water or beverage is too high, it transmits the temperature information to the ice maker, which controls the refrigeration system to operate to process the water or beverage into ice.

[0042] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0043] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An ice making cylinder of an ice maker, characterized by: It includes an outer cylinder (1) and an inner cylinder (2) coaxially disposed inside the outer cylinder (1). A front sealing ring (3) and a rear sealing ring (4) are provided between the outer cylinder (1) and the inner cylinder (2) at intervals along the axial direction. The outer edge of the front end face of the front sealing ring (3) is welded and fixed to the inner wall of the front end of the outer cylinder (1) so that the front sealing ring (3) and the outer cylinder (1) are sealed together; the inner edge of the front end face of the front sealing ring (3) is welded and fixed to the outer wall of the front end of the inner cylinder (2) so that the front sealing ring (3) and the inner cylinder (2) are sealed together; the outer edge of the rear end face of the rear sealing ring (4) is welded and fixed to the inner wall of the rear end of the outer cylinder (1) so that the rear sealing ring (4) and the outer cylinder (1) are sealed together; the inner edge of the rear end face of the rear sealing ring (4) is welded and fixed to the outer wall of the rear end of the inner cylinder (2) so that the rear sealing ring (4) and the inner cylinder (2) are sealed together.

2. The ice-making cylinder of claim 1, wherein: The inner wall of the outer cylinder (1), the outer wall of the inner cylinder (2), the rear end face of the front sealing ring (3) and the front end face of the rear sealing ring (4) together form an axially extending annular columnar refrigeration channel (10); the rear sealing ring (4) is provided with a liquid supply connection pipe (401) and a gas supply connection pipe (402) that connect the refrigeration channel (10).

3. An ice-making cylinder of an ice maker according to claim 2, wherein: One end of the liquid infusion connection pipe (401) and the gas infusion connection pipe (402) are flush with the rear end face of the rear sealing ring (4), and the other end of the liquid infusion connection pipe (401) and the gas infusion connection pipe (402) extend into the refrigeration channel (10).

4. The ice-making cylinder of claim 3, wherein: The diameter of the infusion connection tube (401) is smaller than the diameter of the gas connection tube (402).

5. The ice-making cylinder of claim 1, wherein: A connecting flange (101) is provided on the outer side of the end of the outer cylinder (1) near the rear sealing ring (4). The connecting flange (101) is formed with a number of fixing grooves (102) arranged in an equidistant array along its circumference.

6. The ice-making cylinder of claim 1, wherein: A cover plate (7) is fixedly installed at the front end of the outer cylinder (1) and the front end of the inner cylinder (2). The cover plate (7) is used to seal the front end of the inner cylinder (2), and an oil seal ring (8) is installed at the center point of the cover plate (7). The oil seal ring (8), the inner cylinder (2) and the outer cylinder (1) are coaxially arranged.

7. An ice-making cylinder for an ice maker as defined in claim 6, wherein: The front end face of the front sealing ring (3), the inner side wall of the front end of the outer cylinder (1) and the outer side wall of the front end of the inner cylinder (2) together form an annular placement groove (5). A sealing ring (6) is placed in the placement groove (5), and the sealing ring (6) is placed between the cover plate (7) and the front sealing ring (3).

8. An ice-making cylinder for an ice maker as defined in claim 7, wherein: The front sealing ring (3) has a number of fasteners (9) arranged in an array around its center point on its front end face. The cover plate (7) is formed with a number of sleeves (701) for sleeved on the outside of the fasteners (9) and fixedly connected to them. The number of sleeves (701) is the same as the number of fasteners (9) and their positions correspond.

9. An ice-making cylinder for an ice maker as defined in claim 8, wherein: The edge of the cover plate (7) near the front sealing ring (3) is formed with an annular extension (702), which is used to press-fit with the inner wall of the front end of the outer cylinder (1); the middle part of the cover plate (7) near the front sealing ring (3) is formed with an annular insert (703), which is embedded in the inner cylinder (2) and abuts against the inner wall of the inner cylinder (2).

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