Waterway connection structure of ice maker
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-10
AI Technical Summary
The existing water tank design of ice makers has problems such as low ice-making efficiency, high system complexity, and waste of resources due to the mixing of hot and cold water.
It adopts a dual-tank structure, which divides the water tank into a normal temperature tank and a low temperature tank by a partition. The water level is precisely controlled by the first, second and third water pumps and water level monitor. Combined with ultraviolet germicidal lamps to inhibit bacterial growth, it realizes independent storage and efficient utilization of hot and cold water.
It improves ice-making efficiency, reduces water pump energy consumption, simplifies system structure, ensures clean water quality, and saves space and costs.
Smart Images

Figure CN224479890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an ice maker, and more particularly to a water circuit structure for an ice maker. Background Technology
[0002] In existing technologies, ice-making systems typically employ a single water tank structure or a design with separate cold water tanks and ambient temperature water tanks. A single water tank cannot distinguish between cold water and ambient temperature water, causing the low-temperature water after ice making to flow directly back to the original water tank. After mixing with the ambient temperature water, the overall water temperature rises, reducing ice-making efficiency.
[0003] As an improvement, an independent dual-tank design is also adopted, consisting of a cold water tank and a normal temperature water tank. While this separates the cold and normal temperature water, it requires additional space and supporting components (such as water pumps and piping), increasing system complexity and cost. Furthermore, the control logic for cold water recirculation in existing technologies is imperfect, failing to accurately match the water demand for ice making, leading to waste of water resources and energy. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an ice maker water circuit connection structure with high ice-making efficiency and reasonable and compact spatial layout, in view of the above-mentioned technical status.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an ice maker water circuit connection structure, including an ice storage tank, an ice making tank and a water tank, wherein the ice making tank is rotatably disposed in the ice storage tank, and the water tank can supply water to the ice making tank through a pipeline. The ice maker water circuit connection structure is characterized by further including a first water pump and a second water pump. The water tank has an internal partition that divides the internal space of the water tank into an upper room temperature chamber and a lower low temperature chamber. The room temperature chamber has a room temperature water inlet port. The first water pump can pump water from the low temperature chamber into the ice making tank, and the second water pump can pump room temperature water from the room temperature chamber into the low temperature chamber. A return pipe is connected between the bottom of the ice storage tank and the low temperature chamber.
[0006] The cryogenic chamber is equipped with a water level monitor that is linked to the second water pump. This allows for precise control of the water level within the chamber, ensuring sufficient water for one round of ice making.
[0007] The ambient temperature tank is equipped with a liquid level probe. Water injection is stopped after the water level is detected, ensuring precise control of the initial water volume in the ambient temperature tank.
[0008] The ice maker's water circuit connection structure also includes a third water pump, which pumps room-temperature water from the ambient temperature chamber into the ice-making tank. During continuous ice-making, if the low-temperature water cannot be replenished in time, room-temperature water can be directly pumped into the ice-making tank to speed up ice making.
[0009] The low-temperature chamber is equipped with ultraviolet germicidal lamps to inhibit bacterial growth and ensure the cleanliness of the water used for ice making.
[0010] To reduce the amount of piping, the second water pump is installed on the side wall of the water tank and has an inlet connection port and an outlet connection port. The inlet connection port extends into the room temperature chamber and the outlet connection port extends into the low temperature chamber.
[0011] The ice storage tank is located above the low-temperature chamber, and the low-temperature water can fall freely by gravity, eliminating the need for a water pump.
[0012] Compared with existing technologies, the advantages of this invention are as follows: The water tank is divided into an upper ambient temperature water tank and a lower low-temperature tank, physically separated by a partition to prevent the mixing of hot and cold water; the integrated design saves space, and cold water and ambient temperature water are stored independently to avoid temperature interference. Low-temperature water flows back to the low-temperature tank by gravity, preventing mixing with the upper ambient temperature water and reducing pump energy consumption. It achieves dual-function integration within the same water tank: ambient temperature water storage and cold water recovery are completed within the same tank, simplifying the system structure. It improves the utilization rate of low-temperature water by avoiding the mixing of cold water and ambient temperature water, thus maintaining the low-temperature water storage temperature. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of an embodiment.
[0014] Figure 2 for Figure 1 Enlarged three-dimensional sectional view of the intermediate water tank. Detailed Implementation
[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0016] like Figure 1 and Figure 2 As shown, the ice maker in this embodiment includes an ice storage tank 1, an ice-making tank 2, a water tank 4, a first water pump 31, a second water pump 32, and a third water pump 33. The ice-making tank 2 is rotatably disposed within the ice storage tank 1. An evaporation pipe 21 is provided inside the ice-making tank 2. The water tank 4 supplies water to the ice-making tank 2 through a pipeline. The water tank 4 has an internal partition 43 that divides the internal space of the water tank 4 into an upper ambient temperature chamber 41 and a lower low temperature chamber 42. The ambient temperature chamber 41 has an ambient temperature water inlet port 411. The ice storage tank 1 is located above the low temperature chamber 42, and a return pipe 11 connects the bottom of the ice storage tank 1 to the low temperature chamber 42.
[0017] A level probe 412 is installed on the ambient temperature chamber 41. A water level monitor 421, which is linked to the second water pump 32, is installed inside the low temperature chamber 42. In this embodiment, a float water level detector is used. An ultraviolet germicidal lamp 422 is installed inside the low temperature chamber 42.
[0018] The first water pump 31 pumps water from the low-temperature chamber 42 into the ice-making tank 2. The second water pump 32 pumps room-temperature water from the ambient-temperature chamber 41 into the low-temperature chamber 42. Specifically, in this embodiment, the second water pump 32 is located on the side wall of the water tank 4 and has an inlet connection port 321 and an outlet connection port 322. The inlet connection port 321 extends into the ambient-temperature chamber 41, and the outlet connection port 322 extends into the low-temperature chamber 42. The third water pump 33 pumps room-temperature water from the ambient-temperature chamber 41 into the ice-making tank 2. In this embodiment, pipes 13 and 12 converge at pipe 14 and pump water into the ice-making tank 2.
[0019] The water tank consists of an upper ambient temperature water tank and a lower cryogenic tank, physically separated by a partition to prevent mixing of hot and cold water. The integrated design saves space, and the independent storage of cold and ambient temperature water avoids temperature interference. Cryogenic water flows back to the cryogenic tank by gravity, preventing mixing with the upper ambient temperature water and reducing pump energy consumption. This achieves dual-function integration within the same water tank: ambient temperature water storage and cold water recovery are completed within the same tank, simplifying the system structure. It also improves the utilization rate of cryogenic water by preventing mixing with ambient temperature water and maintaining the cryogenic water storage temperature.
[0020] The ambient temperature water tank is equipped with a level probe that stops filling the tank after detecting the water level, ensuring precise control of the initial water volume. After ice making is complete, the ice-making tank flips over, and the low-temperature water flows back to the low-temperature chamber by gravity, reducing water pump energy consumption. The integrated design saves space, and cold water and ambient temperature water are stored independently to avoid temperature interference. The low-temperature chamber has a built-in ultraviolet lamp to inhibit bacterial growth and ensure the cleanliness of the cold water.
[0021] When the water level in the cryogenic chamber falls below the minimum water level line, the second water pump operates, injecting room temperature water into the cryogenic chamber to replenish the minimum water level, thus meeting the water demand for one round of ice making. Advantages: Independent storage of cryogenic water maintains the low temperature, improving ice-making efficiency; dynamic water replenishment ensures sufficient water for ice making.
[0022] Minimum water level design: The minimum water level of the cryogenic chamber is set based on the water consumption for a single ice-making cycle, ensuring sufficient water for each ice-making operation. Before ice making, the first water pump injects cryogenic water into the ice-making tank, reducing the cooling time of the water by the evaporator. Cryogenic water intake shortens the ice-making cycle and improves ice quality; water level control prevents excessive water replenishment from causing the water temperature to rise.
Claims
1. A water circuit connection structure for an ice maker, comprising an ice storage tank (1), an ice-making tank (2), and a water tank (4), wherein the ice-making tank (2) is rotatably disposed within the ice storage tank (1), and the water tank (4) supplies water to the ice-making tank (2) via a pipeline, characterized in that... The water circuit connection structure of the ice maker also includes a first water pump (31) and a second water pump (32). The aforementioned water tank (4) has a built-in partition (43) that divides the internal space of the water tank (4) into an upper room temperature chamber (41) and a lower low temperature chamber (42). The aforementioned room temperature chamber (41) has a room temperature water inlet port (411). The aforementioned first water pump (31) can pump water from the low temperature chamber (42) into the ice making tank (2). The aforementioned second water pump (32) can pump room temperature water from the room temperature chamber (41) into the low temperature chamber (42). The bottom of the aforementioned ice storage tank (1) is connected to the low temperature chamber (42) by a return pipe (11).
2. The water circuit connection structure for the ice maker according to claim 1, characterized in that... The low-temperature chamber (42) is equipped with a water level monitor (421) that is linked to the second water pump (32).
3. The water circuit connection structure for the ice maker according to claim 1, characterized in that... The ambient temperature chamber (41) is equipped with a liquid level probe (412).
4. The water circuit connection structure of the ice maker according to claim 1, characterized in that... The water circuit connection structure of the ice maker also includes a third water pump (33), which can pump room temperature water in the room temperature box (41) into the ice making tank (2).
5. The water circuit connection structure for the ice maker according to claim 1, characterized in that... The low-temperature chamber (42) is equipped with an ultraviolet germicidal lamp (422).
6. The water circuit connection structure of the ice maker according to claim 1, characterized in that... The second water pump (32) is located on the side wall of the water tank (4) and has an inlet connection port (321) and an outlet connection port (322). The inlet connection port (321) extends into the room temperature chamber (41), and the outlet connection port (322) extends into the low temperature chamber (42).
7. The water circuit connection structure for the ice maker according to claim 1, characterized in that... The ice storage tank (1) is located above the low-temperature chamber (42).