Steam cooking device with removable built-in evaporator

Abstract

The present invention discloses a steam cooking device with a detachable built-in evaporator, comprising an inner pot, an inner heating pipe and an evaporator; the inner heating pipe is arranged at the top of the inner pot, the evaporator is a box structure with an opening at the top, and a plurality of steam nozzles are evenly arranged around the four sides, and the opening of the evaporator is detachably arranged at the top of the inner pot around the inner heating pipe. The present invention arranges the inner heating pipe on the inner pot around the top opening of the detachable evaporator, so that the inner heating pipe is located inside the evaporator, thereby using the inner heating pipe of the steam cooking device itself to heat the water in the evaporator to generate water vapor; at the same time, a plurality of steam nozzles are evenly arranged around the four sides of the evaporator, so that the water vapor can be evenly dispersed into the inner pot of the steam cooking device, thereby ensuring the uniformity of the temperature field during cooking, shortening the cooking time, and improving the taste of food.

Description

Technical Field

[0001] The invention belongs to the technical field of kitchen appliances, and in particular relates to a steam cooking device with a detachable built-in evaporator. Background Art

[0002] Existing steam cooking devices, such as steam ovens, have steam generating devices that are mainly divided into two types: the first type is a built-in type, that is, the steam generating device is arranged in the cavity of the cooking device; the built-in steam generating device is located at the bottom of the cavity, and the steam rises from the bottom, passes through the through holes of the steaming plate, and cooks and heats the food on the steaming plate; the second type is an external type, that is, the steam generating device is arranged outside the cavity.

[0003] However, when the built-in steam generator is used in a steam-bake machine, the evaporator at the bottom will occupy the position of the bottom heating tube of the baking function, reducing the cooking effect in the baking mode. After cooking in the steaming mode, the user needs to use a rag or sponge to suck out the remaining water in the evaporator several times. At the same time, the cavity of the built-in evaporator has poor integrity, which makes cleaning inconvenient. Based on the cost, the external steam generator generally has only one or two air inlets, and the steam is not evenly arranged in the cavity. There are many dead corners and the temperature field in the inner cavity is uneven, which causes the cooking time to be long and consumes more energy. At the same time, the cooking time is too long, which is easy to cause the loss of food nutrition and the deterioration of food taste. Moreover, the scaling inside the external evaporator cannot be observed intuitively, which is easy to breed bacteria. In addition, the existing internal and external evaporators mostly require accessories such as water tanks, water pumps, water pipes and steam pipes, which are complex in structure and high in cost. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a steam cooking device with a detachable built-in evaporator. Through the combination of the detachable built-in evaporator and the internal heating tube, the problems of complex structure and high cost of the existing evaporator and uneven temperature field in the inner cavity of the existing steam cooking device during cooking are solved.

[0005] The technical solution adopted by the present invention is:

[0006] A steam cooking device with a detachable built-in evaporator, comprising an inner pot, an inner heating tube and an evaporator;

[0007] The internal heating tube is arranged at the top of the inner tank. The evaporator is a box structure with an open top and multiple steam nozzles are evenly arranged around it. The opening of the evaporator is detachably arranged at the top of the inner tank around the internal heating tube. The internal heating tube is used to heat the evaporator to generate water vapor, which is then evenly filled into the inner tank through the steam nozzle.

[0008] Preferably, a water retaining ring is disposed around the inside of the evaporator, and the water retaining ring is disposed below the steam nozzle and tilted upward to prevent water from spraying out of the steam nozzle.

[0009] Preferably, a sealing ring capable of being sealed and connected to the top of the inner tank is provided at the opening of the evaporator.

[0010] Preferably, it also includes an external heating tube, which is arranged at the top of the inner tank and located in front of the internal heating tube, and is used to reheat the steam sprayed from the steam nozzle to increase the steam temperature.

[0011] Preferably, it also includes a water level detection unit, which includes a capacitance detection electrode and a water level capacitance detection module. The capacitance detection electrode is arranged on the outside of the evaporator, and the water level capacitance detection module is arranged in the inner tank and corresponds to the capacitance detection electrode.

[0012] Preferably, a fixing frame for mounting the evaporator is provided in the inner tank.

[0013] Preferably, a buckle for fixing the evaporator is also provided in the inner tank, and a buckle position that can be used in conjunction with the buckle is provided on the evaporator.

[0014] Compared with the prior art, when the present invention is used, the top opening of the detachable evaporator is arranged on the inner pot around the inner heating tube, so that the inner heating tube is located inside the evaporator, thereby utilizing the inner heating tube of the steam cooking device itself to heat the water in the evaporator to generate water vapor; this saves the use of accessories such as a water tank, a water pump, a water pipe, and a steam pipe in a traditional evaporator, simplifies the structure of the evaporator, and reduces the cost; at the same time, the present invention arranges the evaporator and the water tank as an integrated structure, effectively increasing the water capacity of the evaporator, and increasing the capacity to 2L compared to the 1L capacity of the traditional water tank, so that 2 hours of steaming can be achieved, meeting the user's usage requirements; at the same time, a plurality of steam nozzles are evenly arranged around the evaporator, so that the water vapor can be evenly dispersed into the inner pot of the steam cooking device, thereby ensuring the uniformity of the temperature field during cooking, shortening the cooking time, and improving the taste of food. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a cross-sectional view of a steam cooking device with a detachable built-in evaporator provided by an embodiment of the present invention;

[0016] Figure 2 It is a structural schematic diagram of an evaporator installed in a steam cooking device with a detachable built-in evaporator provided by an embodiment of the present invention;

[0017] Figure 3is a structural schematic diagram of a steam cooking device with a detachable built-in evaporator provided by an embodiment of the present invention, in which the evaporator is not installed;

[0018] Figure 4 is a steam flow diagram of a steam cooking device with a detachable built-in evaporator provided by an embodiment of the present invention;

[0019] Figure 5 is a structural schematic diagram of an evaporator in a steam cooking device with a detachable built-in evaporator provided by an embodiment of the present invention;

[0020] Figure 6 The present invention is a cross-sectional view of an evaporator in a steam cooking device with a detachable built-in evaporator provided by an embodiment of the present invention.

[0021] In the figure: 1. Inner tank; 11. Fixing frame; 12. Buckle; 2. Internal heating tube; 3. Evaporator; 31. Steam nozzle; 32. Water retaining ring; 33. Sealing ring; 34. Buckle position; 4. External heating tube; 5. Capacitive detection electrode. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] An embodiment of the present invention provides a steam cooking device with a detachable built-in evaporator, wherein the steam cooking device is a steam oven. Figure 1-Figure 3 as well as Figure 5 As shown, it includes an inner pot 1, an inner heating tube 2 and an evaporator 3. The inner heating tube 2 is arranged inside the inner pot 1 and is applied to the baking mode.

[0024] The internal heating tube 2 is arranged at the top of the inner pot 1, the evaporator 3 is a box structure with an open top, and a plurality of steam nozzles 31 are evenly arranged around it. The opening of the evaporator 3 is detachably arranged at the top of the inner pot 1 around the internal heating tube 2, that is, the internal heating tube 2 extends from the opening of the evaporator 3 to the inside of the evaporator 3. The internal heating tube 2 is used to heat the evaporator 3 to generate water vapor, which is then evenly filled into the inner pot 1 of the steam cooking device through the steam nozzles 31.

[0025] In this way, when the evaporator 3 is detachably installed on the top of the inner pot 1, the evaporator 3 contains water for evaporation, and the internal heating tube 2 is located inside the evaporator 3. The internal heating tube 2 is started, and the internal heating tube 2 heats the water inside the evaporator 3 to generate water vapor. Then the water vapor is evenly and quickly filled into the steam cooking device, that is, the inner pot 1, through the steam nozzle 31, thereby ensuring the uniformity of the temperature field, making the food heated evenly, shortening the cooking time, and improving the taste of the food.

[0026] At the same time, the evaporator 3 is used in combination with the internal heating tube 2, and the water for evaporation is placed inside the evaporator 3, which saves the use of accessories such as water tanks, water pumps, water pipes, and steam pipes, simplifies the structure of the evaporator 3, and greatly reduces the cost of the steam system; moreover, the evaporator 3 is used to place the water for evaporation, that is, the evaporator and the water tank are set as one body, which can hold 2L of water when fully loaded, can meet 2 hours of continuous steaming, and meet the usage needs of most users.

[0027] In addition, the evaporator 3 is detachably arranged on the inner pot 1. When the steaming cooking method is used, it is installed on the inner pot 1 and removed when not in use. It is convenient to disassemble and assemble, and can be cleaned after being removed, so that the user can clean the remaining water after cooking and check whether there is scale in the evaporator 3. The convenience of cleaning the evaporator 3 is effectively improved, the cleaning effect is good, and it can be cleaned in time to avoid bacterial growth, thereby improving the safety of cooking.

[0028] In order to prevent water splashing during the installation of the evaporator 3 or water splashing during the cooking process to contaminate the food, as shown in the figure, Figure 6 As shown, the evaporator 3 is also surrounded by a water retaining ring 32, which is arranged below the steam nozzle 31 and tilted upward to prevent water from spraying out of the steam nozzle 31. The upper and lower position relationship between the water retaining ring 32 and the steam nozzle 31 is based on Figure 6 The coordinate system in , that is, the arrow direction is upward.

[0029] In this way, the water retaining ring 32 is located inside the evaporator 3 and below the steam nozzle 31, but is tilted upward and inward and completely blocks the steam nozzle 31. At this time, the water vapor of the evaporator 3 moves upward and overflows from the steam nozzle 31 through the water retaining ring 32. At the same time, the water retaining ring 32 can also prevent splashing water from the heating process from being ejected from the steam nozzle 31.

[0030] At the same time, the water retaining ring 32 can also prevent water from spraying out of the steam nozzle 31 during installation.

[0031] like Figure 6 As shown, in order to prevent the water in the evaporator 3 from splashing out and contaminating the food during the boiling process, a sealing ring 33 that can be sealed with the top of the inner pot 1 is provided at the opening of the evaporator 3.

[0032] In this way, when the evaporator 3 is installed, it is in contact and sealed with the top of the inner pot 1 through the sealing ring 33, so as to prevent the water in the evaporator 3 from splashing out of the evaporator 3 and falling on the food when it boils.

[0033] like Figure 2 and Figure 4 As shown, in order to shorten the cooking time, an external heating tube 4 is also included. The external heating tube 4 is arranged at the top of the inner pot 1 and is located in front of the internal heating tube 2, that is, the external heating tube 4 and the internal heating tube 2 are both located at the top of the inner pot 1, and the external heating tube 4 is closer to the opening door of the steam cooking device, which is used to reheat the steam sprayed from the steam nozzle 31 to increase the steam temperature.

[0034] In this way, the water vapor sprayed by the steam nozzle 32 quickly flows to the bottom of the inner pot 1 to form a Figure 4 The 3D circulating steam system shown in the figure has the exhaust steam passing through the high temperature zone of the external heating tube 4 to be heated again, thereby increasing the steam temperature and shortening the cooking time.

[0035] In order to remind users during use, such as Figure 5 As shown, it also includes a water level detection unit, which includes a capacitance detection electrode 5 and a water level capacitance detection module. The capacitance detection electrode 5 is arranged on the outside of the evaporator 3, and the water level capacitance detection module is arranged in the inner tank 1 and corresponds to the capacitance detection electrode 5.

[0036] In this way, when the steaming mode is turned on, if the water level capacitance detection module does not contact the capacitance detection electrode 5, the user is prompted to install the evaporator; after the user selects the steaming temperature and time, the control system calculates whether the amount of water required for this cooking is less than or equal to the amount of water in the water tank, otherwise the user is reminded to add water; when the baking mode is turned on, if the water level capacitance detection module detects the evaporator 3, the user is prompted to remove the evaporator 3 to prevent the evaporator 3 from blocking the heat of the internal heating tube 2, which is conducive to better baking effect.

[0037] like Figure 2 , Figure 3 and Figure 5 As shown, a fixing frame 11 for mounting the evaporator 3 is provided in the inner liner 1 ; a buckle 12 for fixing the evaporator 3 is also provided in the inner liner 1 , and a buckle position 34 that can be used in conjunction with the buckle 11 is provided on the evaporator 3 .

[0038] In this way, when installing the evaporator 3 , the evaporator 3 is first placed on the fixing frame 11 , and then the buckle 12 is buckled into the buckle position 34 of the evaporator 3 to fix it, and the installation of the evaporator 3 is completed.

[0039] Working process: When the user uses the steam cooking device and uses the baking mode, the evaporator 3 is removed. At this time, the presence of the evaporator 3 can be determined by whether the water level capacitance detection module in the water level detection unit contacts the capacitance detection electrode 5, thereby preventing the evaporator 3 from blocking the heat of the internal heating tube 2 and ensuring the baking effect;

[0040] When the steaming mode is required, the installation of the evaporator 3 and the amount of water in the evaporator 3 are ensured by the water level detection unit; then the evaporator 3 is placed on the fixing frame 11, and the buckle 12 is buckled into the buckle position 34 of the evaporator 3 to fix it, thus completing the installation of the evaporator 3, and then the internal heating tube 2 is started to heat the evaporator 3 to generate water vapor, and the water vapor is sprayed into the inner pot 1 through the steam nozzle 31. At this time, the water vapor quickly flows to the bottom of the inner pot 1 to form a 3D circulating steam system, and the exhausted steam passes through the high temperature zone of the external heating tube 4 to be heated again, thereby increasing the steam temperature and shortening the cooking time; after the steaming is completed, the evaporator 3 is removed and the evaporator 3 can be cleaned.

[0041] When in use, the present invention arranges the top opening of the detachable evaporator around the inner heating pipe on the inner pot, so that the inner heating pipe is located inside the evaporator, thereby utilizing the inner heating pipe of the steam cooking device itself to heat the water in the evaporator to generate water vapor, thereby saving the use of accessories such as a water tank, a water pump, a water pipe, and a steam pipe in a traditional evaporator, simplifying the structure of the evaporator and reducing the cost; at the same time, the present invention arranges the evaporator and the water tank as an integrated structure, effectively increasing the water capacity of the evaporator, and increasing the capacity to 2L compared to the 1L capacity of the traditional water tank, so that 2 hours of steaming can be achieved, meeting the user's usage requirements; and multiple steam nozzles are evenly arranged around the evaporator, so that the water vapor can be evenly dispersed into the inner pot of the steam cooking device, thereby ensuring the uniformity of the temperature field during cooking, and combined with the arrangement of the external heating pipe, the steam is reheated, effectively shortening the cooking time and improving the taste of food.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A steam cooking device with a detachable built-in evaporator, characterized in that: It comprises an inner tank (1), an inner heating tube (2), an evaporator (3) and an outer heating tube (4); The inner heating pipe (2) is arranged at the top of the inner pot (1); the evaporator (3) is a box structure with an open top and a plurality of steam nozzles (31) are evenly arranged around the four sides; the opening of the evaporator (3) is detachably arranged at the top of the inner pot (1) around the inner heating pipe (2); the inner heating pipe (2) is used to heat the evaporator (3) to generate water vapor, which is then evenly filled into the inner pot (1) through the steam nozzle (31); the outer heating pipe (4) is arranged at the top of the inner pot (1) and is located in front of the inner heating pipe (2) to reheat the steam ejected from the steam nozzle (31) to increase the steam temperature; A water retaining ring (32) is also arranged around the evaporator (3), and the water retaining ring (32) is arranged below the steam nozzle (31) and tilted upwards, so as to prevent water from spraying out of the steam nozzle (31); A sealing ring (33) capable of being sealed with the top of the inner container (1) is provided at the opening of the evaporator (3).

2. The steam cooking device with a detachable built-in evaporator according to claim 1, characterized in that: It also comprises a water level detection unit, the water level detection unit comprising a capacitance detection electrode (5) and a water level capacitance detection module, the capacitance detection electrode (5) being arranged on a side outside the evaporator (3), the water level capacitance detection module being arranged in the inner tank (1) and correspondingly cooperating with the capacitance detection electrode (5).

3. The steam cooking device with a detachable built-in evaporator according to claim 1, characterized in that: A fixing frame (11) for mounting the evaporator (3) is provided in the inner container (1).

4. The steam cooking device with a detachable built-in evaporator according to claim 3, characterized in that: A buckle (12) for fixing the evaporator (3) is also provided in the inner container (1), and a buckle position (34) capable of being used in conjunction with the buckle (12) is provided on the evaporator (3).

Images