A cold storage type steaming and baking refrigeration all-in-one machine

By introducing a parallel cold storage system and a refrigeration system into the steam oven and refrigerator combo, combined with phase change materials and fan design, the problems of single function and insufficient integration of traditional equipment are solved, achieving efficient temperature control and improved user experience.

CN224344673UActive Publication Date: 2026-06-12NINGBO FOTILE KITCHEN WARE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Filing Date
2025-05-27
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional steam ovens and refrigerators have limited functions and cannot achieve seamless switching between refrigeration and cooking, resulting in increased time costs. Furthermore, the refrigeration system and the steaming/baking system operate independently, lacking integration and affecting the user experience.

Method used

The steam oven and refrigerator are combined with a parallel structure of cold storage and refrigeration systems. By combining the cold storage and refrigeration systems, the functions of ordinary cooling, cold storage and rapid cooling are realized. The air delivery path is optimized by using phase change materials and fan design.

Benefits of technology

It achieves efficient temperature control in different working modes, improves the integration of the equipment and user experience, and reduces the impact of temperature fluctuations on food preservation.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A kind of cold storage type steaming and baking refrigeration integrated machine, including inner container and the refrigerating system being located at the outer portion of inner container, refrigerating system has refrigeration cavity, and refrigerating system has cold storage cavity, refrigeration cavity is connected with inner container by with first air outlet, the cold storage cavity is connected with inner container by with second air outlet.The utility model has the advantages of: the cold storage type steaming and baking refrigeration integrated machine is equipped with refrigerating system and cold storage system outside inner container, the refrigeration cavity of refrigerating system and the cold storage cavity of cold storage system are connected with inner container by with respective air outlet, and the air supply system of cold storage system and refrigerating system is connected in parallel, so that integrated machine is integrated with ordinary cooling, cold storage and rapid cooling and the like functions, in different operating modes, open corresponding system to inner container air supply cooling.
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Description

Technical Field

[0001] This utility model relates to kitchen appliances, and in particular to a cooling and steaming integrated oven and refrigerator. Background Technology

[0002] With the fast pace of modern life, people have higher demands for the multifunctionality and convenience of kitchen appliances. Traditional steam ovens and refrigerators, as independent devices, have limited functions and cannot meet users' needs for efficient cooking and food storage. For example, users may need to refrigerate food before going out and want to cook it quickly when they return home, but traditional appliances cannot seamlessly switch between refrigeration and cooking, leading to increased time costs. In addition, refrigerators have limited storage space, especially when storing leftover food, often resulting in insufficient space.

[0003] To improve ease of use, integrated steam ovens and refrigerators have been invented, combining refrigeration and steaming / baking functions into a single device. For example, some steam ovens have a basic cooling function to assist in cooling down after cooking. However, these devices still have the following technical drawbacks: First, when the steaming / baking function has just ended, the cavity temperature is extremely high. If the refrigeration function is activated immediately, the refrigeration system needs a long time to lower the temperature to the required refrigeration temperature, resulting in food being kept in a high-temperature environment for an extended period, affecting its preservation. Second, the steaming / baking and refrigeration systems typically operate independently and cannot automatically coordinate their working modes according to user needs, resulting in insufficient integration and a poor user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a storage-type steam oven and refrigerator that integrates multiple functions such as ordinary cooling, cold storage and rapid cooling, in light of the above-mentioned existing technology.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a cold storage type steam oven and refrigerator, including an inner liner and a refrigeration system disposed outside the inner liner, characterized in that: a cold storage system is also provided outside the inner liner, the refrigeration system has a refrigeration cavity, the cold storage system has a cold storage cavity, the refrigeration cavity is connected to the inner liner through a first air outlet, and the cold storage cavity is connected to the inner liner through a second air outlet.

[0006] The refrigeration system can have various structures. Preferably, the refrigeration system includes a compressor, a condenser, and an evaporator. The compressor, condenser, and evaporator are connected by a refrigerant pipeline. A first valve is installed on the refrigerant pipeline between the condenser and the evaporator. The refrigeration cavity has a first air inlet and a first air outlet. A first fan and the evaporator are provided in the air duct between the first air inlet and the first air outlet.

[0007] In order to blow cold air out of the first air outlet along the direction of air flow, the first fan is located upstream of the evaporator.

[0008] The cold storage system can have various structures. Preferably, the cold storage system includes a cold storage unit and a second fan. The cold storage cavity has a second air inlet and a second air outlet. The cold storage unit and the second fan are located in the air duct between the second air inlet and the second air outlet.

[0009] In order to direct the cold air towards the second air outlet, the second fan is located upstream of the cold storage unit along the direction of airflow.

[0010] In order to enable the refrigerant to exchange heat smoothly with the cold storage unit, the cold storage unit includes a shell with a refrigerant inlet and a refrigerant outlet. A cold storage unit is installed inside the shell. The refrigerant flowing in from the refrigerant inlet exchanges heat with the cold storage unit and then flows out from the refrigerant outlet.

[0011] In a further preferred embodiment, the refrigerant inlet is connected to the inlet of the evaporator via a first pipe, and the refrigerant outlet is connected to the outlet of the evaporator via a second pipe. A second valve is installed on the first pipe. This configuration allows the cold storage system and the refrigeration system to operate in parallel, improving system integration.

[0012] The cold storage unit can be of various types. Preferably, the cold storage unit includes a cold storage ball encapsulated with a phase change material.

[0013] To enhance the heat exchange capacity of the cold storage sphere, the cold storage sphere includes a shell, the phase change material is disposed inside the shell, and heat dissipation fins are provided on the surface of the shell.

[0014] The phase change material and the outer shell can be made of different materials. Preferably, the phase change material is paraffin wax and the outer shell is made of nano-alumina.

[0015] Compared with the prior art, the advantages of this utility model are as follows: the integrated steam oven and refrigerator has a refrigeration system and a cold storage system on the outside of the inner liner. The refrigeration cavity of the refrigeration system and the cold storage cavity of the cold storage system are connected to the inner liner through their respective air outlets. The cold storage system and the air supply system of the refrigeration system are connected in parallel, so that the integrated machine has functions such as normal cooling, cold storage and rapid cooling. In different working modes, the corresponding system is activated to supply air and cool the inner liner. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the integrated steam-roast-refrigeration machine with cold storage according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the cold storage device according to an embodiment of the present utility model;

[0018] Figure 3 This is another structural schematic diagram of the cold storage device according to an embodiment of the present utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the cold storage ball according to an embodiment of the present invention. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown, the integrated steam oven / grill and refrigerator of this embodiment includes an inner liner 1. A refrigeration system 2 and a cold storage system 3 are located outside the inner liner 1. The refrigeration system 2 and the cold storage system 3 are connected in parallel. The refrigeration system 2 can operate independently, while the cold storage system 2 only operates when the refrigeration system 2 is turned on. The refrigeration system 2 has a refrigeration cavity 20, which is connected to the inner liner 1 via a first air outlet 27. The cold storage system 3 has a cold storage cavity 30, which is connected to the inner liner 1 via a second air outlet 34.

[0022] Specifically, the refrigeration system 2 includes a compressor 21, a condenser 22, and an evaporator 23. The compressor 21, condenser 22, and evaporator 23 are connected by a refrigerant pipe 24. A first valve 25 is installed on the refrigerant pipe 24 between the condenser 22 and the evaporator 23. The refrigeration chamber 20 has a first air inlet 26 and a first air outlet 27. A first fan 28 and the evaporator 23 are arranged in the air duct between the first air inlet 26 and the first air outlet 27, and the first fan 28 is located upstream of the evaporator 23 along the air flow direction. When the refrigeration system 2 is started, the first fan 28 blows cold air into the inner liner 1 through the first air outlet 27.

[0023] The cold storage system 3 includes a cold storage unit 31 and a second fan 32. The cold storage cavity 30 has a second air inlet 33 and a second air outlet 34. The cold storage unit 31 and the second fan 32 are located in the air duct between the second air inlet 33 and the second air outlet 34, and the second fan 32 is located upstream of the cold storage unit 31.

[0024] like Figures 2 to 4 As shown, the cold storage unit 31 in this embodiment includes a housing 311, which has a refrigerant inlet 312 and a refrigerant outlet 313. A cold storage unit is installed inside the housing 311. The refrigerant flowing in from the refrigerant inlet 312 exchanges heat with the cold storage unit and then flows out from the refrigerant outlet 313. The refrigerant inlet 312 is connected to the inlet end of the evaporator 23 through a first pipe 35, and the refrigerant outlet 313 is connected to the outlet end of the evaporator 23 through a second pipe 36, thereby realizing the parallel connection of the cold storage system 3 and the refrigeration system 2.

[0025] A second valve 37 is installed on the first pipeline 35 of the cold storage system 3. When the refrigeration system 2 is turned on, the second valve 37 is opened, and the refrigerant flowing out of the refrigeration system 2 flows in from the refrigerant inlet 312, exchanges heat with the cold storage unit, flows out from the refrigerant outlet 313, and flows back to the refrigeration system 2.

[0026] The cold storage unit in this embodiment includes a cold storage ball 314 encapsulating a phase change material 3142. The cold storage ball 314 includes a shell 3141, with the phase change material 3142 disposed inside the shell 3141. Heat dissipation fins 3143 are provided on the surface of the shell 3141 to increase the heat exchange area, thereby improving heat exchange capacity and cooling effect. The shell 3141 is made of nano-alumina to protect the phase change material inside from leakage. The phase change material 3142 is paraffin wax; by mixing paraffin wax with graphene, the heat transfer coefficient can be increased, thereby improving heat exchange capacity and cooling effect.

[0027] When the cold storage system 3 is working, the low-temperature refrigerant flows in from the refrigerant inlet 312 of the cold storage unit 31 and undergoes forced convection heat exchange with the cold storage ball 314 in the cold storage unit 31. At this time, the paraffin wax solidifies from liquid to solid, storing the cold energy in the cold storage ball 314. The high-temperature refrigerant flows out from the refrigerant outlet 313 of the cold storage unit 31, completing one cold storage process.

[0028] In normal cooling mode, compressor 21 is turned on, first valve 25 is opened, second valve 37 is closed, refrigeration system 2 supplies cooling to inner tank 1 alone, first fan 28 is turned on to blow air into inner tank 1, and second fan 32 is turned off.

[0029] In cold storage mode, compressor 21 is turned on, first valve 25 is closed, second valve 37 is opened, cold storage unit 31 begins to store cold, first fan 28 and second fan 32 are both turned off, no cold air is sent to inner tank 1, and the cold energy is stored in cold storage unit 31.

[0030] In rapid cooling mode, compressor 21 is turned on, first valve 25 and second valve 37 are both opened, first fan 28 is turned on, refrigeration system 2 supplies cooling to inner tank 1, second fan 32 is turned on, paraffin wax melts from solid to liquid, releasing the cold energy stored in cold storage tank 31 to inner tank 1, thereby achieving rapid cooling under the combined action of refrigeration system 2 and cold storage system 3.

[0031] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A storage-cooling integrated steam oven and refrigerator, comprising an inner liner (1) and a refrigeration system (2) disposed outside the inner liner (1), characterized in that: A cold storage system (3) is also provided outside the inner liner (1). The refrigeration system (2) has a refrigeration cavity (20), and the cold storage system (3) has a cold storage cavity (30). The refrigeration cavity (20) is connected to the inner liner (1) through a first air outlet (27), and the cold storage cavity (30) is connected to the inner liner (1) through a second air outlet (34).

2. The integrated steam-roasting and refrigeration machine according to claim 1, characterized in that: The refrigeration system (2) includes a compressor (21), a condenser (22) and an evaporator (23). The compressor (21), condenser (22) and evaporator (23) are connected by a refrigerant pipeline (24). A first valve (25) is installed on the refrigerant pipeline (24) between the condenser (22) and the evaporator (23). The refrigeration cavity (20) has a first air inlet (26) and a first air outlet (27). A first fan (28) and the evaporator (23) are provided in the air duct between the first air inlet (26) and the first air outlet (27).

3. The integrated steam-roasting and refrigeration machine according to claim 2, characterized in that: Along the direction of airflow, the first fan (28) is located upstream of the evaporator (23).

4. The integrated steam-roasting and refrigeration machine according to claim 1, characterized in that: The cold storage system (3) includes a cold storage unit (31) and a second fan (32). The cold storage cavity (30) has a second air inlet (33) and a second air outlet (34). The cold storage unit (31) and the second fan (32) are located in the air duct between the second air inlet (33) and the second air outlet (34).

5. The integrated steam-roasting and refrigeration machine according to claim 4, characterized in that: Along the direction of airflow, the second fan (32) is located upstream of the cold storage unit (31).

6. The integrated steam-roasting and refrigeration machine according to claim 4, characterized in that: The cold storage unit (31) includes a housing (311), which has a refrigerant inlet (312) and a refrigerant outlet (313). A cold storage unit is installed inside the housing (311). The refrigerant flowing in from the refrigerant inlet (312) exchanges heat with the cold storage unit and then flows out from the refrigerant outlet (313).

7. The integrated steam-roasting and refrigeration machine according to claim 6, characterized in that: The refrigerant inlet (312) is connected to the inlet end of the evaporator (23) through the first pipe (35), and the refrigerant outlet (313) is connected to the outlet end of the evaporator (23) through the second pipe (36). A second valve (37) is installed on the first pipe (35).

8. The integrated steam-roasting and refrigeration machine according to claim 6, characterized in that: The cold storage unit includes a cold storage ball (314) encapsulated with phase change material (3142).

9. The integrated steam-roasting and refrigeration machine according to claim 8, characterized in that: The cold storage ball (314) includes a shell (3141), the phase change material (3142) is disposed inside the shell (3141), and heat dissipation fins (3143) are disposed on the surface of the shell (3141).