Coffee maker with semiconductor refrigeration
By incorporating a cold water tank and a semiconductor refrigeration system within the coffee machine, the problem of the lack of ice water functionality in coffee machines has been solved, enabling self-contained cold water supply and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN YANGTAI ELECTRICAL TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-21
AI Technical Summary
Current coffee machines lack an ice water function, requiring users to prepare additional cold water when making cold drinks. This makes them incomplete and inconvenient to use.
The coffee machine is equipped with a cold water tank and uses a combination of semiconductor cooling chip, heat sink and cooling fan. The water in the tank is cooled by semiconductor cooling chip, combined with heat insulation chamber and thermal grease to improve cooling efficiency. It is equipped with a water pump and water storage tank for automatic water replenishment.
The coffee machine now features a built-in cold water supply, eliminating the need for users to prepare additional cold water and enhancing its functionality and ease of use.
Smart Images

Figure CN224522878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machines, and more particularly to a coffee machine with semiconductor refrigeration. Background Technology
[0002] With the continuous promotion of coffee culture in my country, more and more coffee shops are opening, leading to rapid development in the coffee machine manufacturing industry. Currently, coffee machines on the market have functions such as grinding, extraction, and frothing. However, most extracted coffee needs to be diluted with water, requiring the use of ice water when preparing cold drinks. Since there is currently a lack of coffee machines on the market that provide an ice water function, users need to prepare cold water separately. Therefore, current coffee machines suffer from problems such as insufficient functionality and inconvenience in use.
[0003] Therefore, it is necessary to make further improvements. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this invention is to provide a semiconductor-cooled coffee machine equipped with a cold water tank for use with cold water.
[0005] To achieve the above objectives, this utility model provides a semiconductor-cooled coffee machine. The coffee machine is internally equipped with a cold water tank, a semiconductor cooling chip, a heat sink, and a cooling fan. The semiconductor cooling chip is located at the bottom of the cold water tank, with its cold end in contact with the cold water tank. The heat sink is located below the semiconductor cooling chip, with its hot end in contact with the semiconductor cooling chip. The cooling fan is located at the bottom of the heat sink, with its air inlet end corresponding to the heat sink. The outer casing of the coffee machine is equipped with an air inlet grille and an air outlet grille, with the air inlet grille corresponding to the heat sink and the air outlet grille corresponding to the air outlet end of the cooling fan.
[0006] In one or more embodiments, the coffee machine is further provided with an insulated chamber, a cold water tank is placed in the insulated chamber, and the bottom of the insulated chamber has a clearance opening for the hot end of the semiconductor cooling chip to pass through.
[0007] In one or more embodiments, the coffee machine is equipped with a water pump, the output end of which is connected to the water outlet on the coffee machine, and the input end of which is connected to the cold water tank.
[0008] In one or more embodiments, the coffee machine is provided with a water storage tank, which is connected to a cold water tank via a pipe, and the outlet of the water storage tank is higher than that of the cold water tank.
[0009] In one or more embodiments, a first thermally conductive silicone grease is disposed between the cold end of the thermoelectric cooler and the cold water tank, and a second thermally conductive silicone grease is disposed between the hot end of the thermoelectric cooler and the heat sink.
[0010] In one or more embodiments, the heat sink is an aluminum heat sink, and the cooling fan is fixed to the heat sink with screws.
[0011] Compared with the prior art, the advantages of this invention are: the coffee machine has an internal cold water tank to store water, and uses a semiconductor cooling chip to cool the water for user use. Users no longer need to configure separate cold water supply, providing more functional options to meet their needs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the coffee machine in this embodiment;
[0013] Figure 2 This is a schematic diagram of the internal structure of the coffee machine in this embodiment;
[0014] Figure 3 This is a schematic diagram of the structure of the cold water tank, the heat insulation chamber, and the refrigeration components in this embodiment. Detailed Implementation
[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0016] See appendix Figure 1-3 This application provides a semiconductor-cooled coffee machine, which includes a cold water tank 1, a semiconductor cooling chip 2, a heat sink 3, and a cooling fan 4. The semiconductor cooling chip 2 is located at the bottom of the cold water tank 1, with its cold end in contact with the cold water tank 1. The heat sink 3 is located below the semiconductor cooling chip 2, with its hot end in contact with the hot end of the semiconductor cooling chip 2. The cooling fan 4 is located at the bottom of the heat sink 3, with its air inlet corresponding to the heat sink 3. The outer casing of the coffee machine is provided with an air inlet grille 5 and an air outlet grille 6. The air inlet grille 5 corresponds to the heat sink 3, and the air outlet grille 6 corresponds to the air outlet of the cooling fan 4. The semiconductor cooling chip works to cool the cold water tank, turning the water inside into ice water. The heat sink can accelerate the heat dissipation of the hot end of the semiconductor cooling chip to ensure the cooling effect of the semiconductor cooling chip. In addition, the cooling fan can remove the heat from the heat sink, accelerating the heat conduction and cooling of the hot end of the semiconductor cooling chip.
[0017] The coffee machine is also equipped with a heat insulation chamber 7, in which the cold water tank 1 is placed. The heat insulation chamber can isolate the cold water tank from the outside air, ensuring that the cold water tank can maintain a low temperature inside the heat insulation chamber, which also helps to reduce energy consumption. The bottom of the heat insulation chamber 7 has a clearance opening 8 for the hot end of the semiconductor cooling chip 2 to pass through. After the hot end of the semiconductor cooling chip passes through the clearance opening, it contacts the heat sink.
[0018] The coffee machine is equipped with a water pump. The output end of the water pump is connected to the water outlet on the coffee machine, and the input end of the water pump is connected to the cold water tank 1. The user can control the operation of the water pump through the operation interface on the coffee machine.
[0019] The coffee machine is equipped with a water storage tank 9, which is connected to a cold water tank 1 via a pipe. The outlet of the water storage tank 9 is higher than that of the cold water tank 1. With this design, the water storage tank can automatically replenish the cold water tank, ensuring that the cold water tank can be replenished in time every time water is drawn.
[0020] A first thermal grease is provided between the cold end of the semiconductor cooling chip 2 and the cold water tank 1, and a second thermal grease is provided between the hot end of the semiconductor cooling chip 2 and the heat sink 3. The first and second thermal greases can improve the thermal conductivity.
[0021] The heat sink 3 is an aluminum heat sink, and the cooling fan 4 is fixed to the heat sink 3 with screws so that the cooling fan can remove the heat from the heat sink and ensure rapid heat dissipation of the hot end of the semiconductor cooling chip.
[0022] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.
Claims
1. A semiconductor-cooled coffee machine, characterized in that: The coffee machine is equipped with a cold water tank (1), a thermoelectric cooler (2), a radiator (3) and a cooling fan (4). The thermoelectric cooler (2) is located at the bottom of the cold water tank (1), and the cold end of the thermoelectric cooler (2) is in contact with the cold water tank (1). The radiator (3) is located below the thermoelectric cooler (2), and the radiator (3) is in contact with the hot end of the thermoelectric cooler (2). The cooling fan (4) is located at the bottom of the radiator (3), and the air inlet of the cooling fan (4) corresponds to the radiator (3). The outer shell of the coffee machine is equipped with an air inlet grille (5) and an air outlet grille (6). The air inlet grille (5) corresponds to the radiator (3), and the air outlet grille (6) corresponds to the air outlet of the cooling fan (4).
2. The coffee machine with semiconductor cooling according to claim 1, characterized in that: The coffee machine is also equipped with an insulated chamber (7), and the cold water tank (1) is placed in the insulated chamber (7). The bottom of the insulated chamber (7) has a clearance opening (8) for the hot end of the semiconductor cooling chip (2) to pass through.
3. A semiconductor-cooled coffee machine according to claim 1, characterized in that: The coffee machine is equipped with a water pump. The output end of the water pump is connected to the water outlet on the coffee machine, and the input end of the water pump is connected to the cold water tank (1).
4. A semiconductor-cooled coffee machine according to claim 1 or 3, characterized in that: The coffee machine is equipped with a water tank (9), which is connected to a cold water tank (1) via a pipe. The outlet of the water tank (9) is higher than that of the cold water tank (1).
5. A semiconductor-cooled coffee machine according to claim 1, characterized in that: A first thermally conductive silicone grease is provided between the cold end of the semiconductor cooling chip (2) and the cold water tank (1), and a second thermally conductive silicone grease is provided between the hot end of the semiconductor cooling chip (2) and the heat sink (3).
6. A semiconductor-cooled coffee machine according to claim 1, characterized in that: The radiator (3) is an aluminum radiator, and the cooling fan (4) is fixed to the radiator (3) with screws.