Cooking equipment

The cooking device addresses steam overflow issues by using dual air flow channels and a vacuum pump to manage steam and air flow, effectively preventing overflow during high steam conditions.

CN223095341UActive Publication Date: 2025-07-15QINGDAO LEJIA ELECTRIC APPLIANCE CO LTD +1
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Patent Information

Application Number
CN202422347255.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-07-15
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

When cooking porridge or cooking ingredients that are prone to paste, there is a problem of rice bubbles overflowing, and the existing steam valves are difficult to completely prevent the pot overflow.

Method used

The first airflow channel and the second airflow channel are arranged in the cover of the cooking equipment. Combined with a vacuum pump, the steam discharge method is controlled through different working conditions, and the temperature difference convection is used to achieve defoaming and overflow prevention.

Benefits of technology

Effectively prevent rice bubbles from overflowing, the airflow channel system controlled by the vacuum pump can be used to defoam and prevent overflow by using temperature differential convection, and improve the anti-spill performance of cooking equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses cooking equipment. A cooking cavity is formed in a pot body; the cover body is connected with the cooker body; a first airflow channel, a second airflow channel, a communicating pipeline and a vacuum pump are arranged in the cover body; the cooking cavity is communicated with the outside atmosphere through the first airflow channel; one end of the second airflow channel is communicated with the outside atmosphere; one end of the communicating pipeline is communicated with the cooking cavity, and the other end is communicated with the other end of the second airflow channel; the vacuum pump is arranged on the communicating pipeline; when the cooking equipment is in the first working state, the vacuum pump is closed, and steam in the cooking cavity is discharged through the first airflow channel; when the cooking equipment is in the second working state, the vacuum pump is started, the steam in the cooking cavity is discharged through the second airflow channel, the external atmosphere enters the cooking cavity through the first airflow channel, and the defoaming and anti-overflow effects are achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a cooking device. Background Art

[0002] Cooking devices, such as rice cookers, include a pot body and a lid body. A cooking cavity is formed inside the pot body, and the lid body is configured to close or open the cooking cavity. When cooking with a rice cooker, for example, when cooking porridge, a large amount of rice bubbles will be generated. To prevent the rice bubbles from overflowing, a steam valve is provided on the lid body to discharge the steam generated during the heating process of the rice cooker through the steam valve. The steam valve itself has a certain anti-overflow ability and can reduce the probability of rice bubble overflow. However, when cooking porridge with a large amount of rice or cooking some ingredients that are prone to getting mushy, there will still be an overflow phenomenon.

[0003] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Invention

[0004] Aiming at the problems pointed out in the background art, the utility model proposes a cooking device that can achieve the effect of defoaming and anti-overflow.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] In some embodiments, a cooking device is provided, including:

[0007] A pot body, inside which a cooking cavity is formed;

[0008] A lid body, connected to the pot body, and the lid body is configured to close or open the cooking cavity;

[0009] A first air flow channel, arranged inside the lid body, and the first air flow channel is configured to communicate the cooking cavity with the outside atmosphere;

[0010] A second air flow channel, arranged inside the lid body, and one end of the second air flow channel is communicated with the outside atmosphere;

[0011] A connecting pipeline, arranged inside the lid body, one end of the connecting pipeline is communicated with the cooking cavity, and the other end is communicated with the other end of the second air flow channel;

[0012] A vacuum pump, arranged on the connecting pipeline;

[0013] When the cooking device is in the first working state, the vacuum pump is closed, and the steam in the cooking cavity is discharged through the first air flow channel;

[0014] When the cooking device is in the second working state, the vacuum pump is turned on, the steam in the cooking cavity is discharged through the second air flow channel, and the outside air enters the cooking cavity through the first air flow channel.

[0015] In some embodiments, the cooking device includes an exhaust member disposed inside the lid body, and the first air flow channel and the second air flow channel are formed inside the exhaust member.

[0016] In some embodiments, the first air flow channel and the second air flow channel are adjacent to each other.

[0017] In some embodiments, the first air flow channel and the second air flow channel are of a bent channel structure.

[0018] In some embodiments, the first air flow channel has a first ventilation port that communicates with the cooking cavity;

[0019] The connecting pipeline has a second ventilation port that communicates with the cooking cavity;

[0020] The first ventilation port and the second ventilation port are arranged at intervals along the inner diameter direction of the cooking cavity.

[0021] In some embodiments, the connecting pipeline includes a first pipeline and a second pipeline that are connected;

[0022] The first pipeline extends along the transverse direction of the lid body, the first pipeline communicates with the second air flow channel, and the vacuum pump is arranged on the first pipeline;

[0023] The second pipeline communicates with the cooking cavity and extends along the height direction of the lid body.

[0024] In some embodiments, a one-way valve is arranged on the connecting pipeline, and the one-way valve is located at the air inlet end of the vacuum pump.

[0025] In some embodiments, the vacuum pump is turned on when the remaining cooking time of the cooking device is greater than or equal to a set value.

[0026] In some embodiments, a first temperature sensor is arranged on one side of the lid body facing the cooking cavity.

[0027] In some embodiments, the pot body includes an inner pot, the inner pot forms the cooking cavity, and a second temperature sensor is arranged at the bottom of the inner pot.

[0028] Compared with the prior art, the advantages and positive effects of the present utility model are:

[0029] The cooking device of the present disclosure has a first air flow channel and a second air flow channel provided inside the lid body. A vacuum pump is provided on the second air flow channel, and the two air flow channels are used in cooperation. When the cooking cavity does not reach the boiling state, the vacuum pump is closed, and the first air flow channel acts as an exhaust valve, and the steam in the cooking cavity is discharged through the first air flow channel. When the cooking cavity reaches the boiling state, the vacuum pump is turned on. Under the action of the vacuum pump, the steam in the cooking cavity is discharged through the second air flow channel, while the outside air flows into the cooking cavity through the first air flow channel, forming a temperature difference convection with the boiling bubbles in the cooking cavity, thereby achieving defoaming and anti-overflow.

[0030] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become clearer. Brief Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0032] Figure 1 A structural diagram of a cooking device according to some embodiments;

[0033] Figure 2 A schematic diagram of gas flow when the cooking device is in the first working state according to some embodiments;

[0034] Figure 3 A schematic diagram of gas flow when the cooking device is in the second working state according to some embodiments;

[0035] Reference Numerals:

[0036] 100, cooking pot body; 110, inner pot; 120, cooking cavity;

[0037] 200, lid body;

[0038] 300, exhaust member; 310, first air flow channel; 311, first ventilation port; 320, second air flow channel;

[0039] 400, connecting pipeline; 410, first pipeline; 420, second pipeline; 430, second ventilation port;

[0040] 500, vacuum pump;

[0041] 600, one-way valve;

[0042] 710, first temperature sensor; 720, second temperature sensor. Detailed implementation manners

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

[0044] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0045] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0046] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0047] In the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0048] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0049] In some embodiments, a cooking device, such as a rice cooker, is provided. Referring to Figure 1 , the cooking device includes a pot body 100, and an inner pot 110 is disposed in the pot body 100. The inner pot 110 forms a cooking cavity 120.

[0050] The cooking device includes a lid body 200. The lid body 200 is rotatably connected to the pot body 100, and the lid body 200 is configured to close or open the cooking cavity 120.

[0051] The cooking device includes a first air flow channel 310. The first air flow channel 310 is disposed in the lid body 200, and the first air flow channel 310 is configured to communicate the cooking cavity 120 with the outside atmosphere.

[0052] The cooking device includes a second air flow channel 320. The second air flow channel 320 is disposed in the lid body 200, and one end of the second air flow channel 320 communicates with the outside atmosphere.

[0053] The cooking device includes a connecting pipeline 400. The connecting pipeline 400 is disposed in the lid body 200, one end of the connecting pipeline 400 communicates with the cooking cavity 120, and the other end communicates with the other end of the second air flow channel 320.

[0054] The cooking device includes a vacuum pump 500, and the vacuum pump 500 is disposed on the connecting pipeline 400.

[0055] Referring to Figure 2 , when the cooking device is in the first working state, the cooking cavity 120 has not reached the boiling state, the vacuum pump 500 is closed, and the steam in the cooking cavity 120 is discharged to the outside atmosphere through the first air flow channel 310. At this time, the first air flow channel 310 acts as an exhaust valve.

[0056] Referring to Figure 3, when the cooking device is in the second working state, the cooking cavity 120 reaches the boiling state, the vacuum pump 500 is turned on, and the steam in the cooking cavity 120 is discharged to the outside atmosphere through the second air flow channel 320; since the gas in the cooking cavity 120 decreases, the outside atmosphere enters the cooking cavity 120 through the first air flow channel 310. When the outside atmosphere flows into the cooking cavity 120 through the first air flow channel 310, due to the temperature of the outside atmosphere being lower than that in the cooking cavity 120, the inflowing outside atmosphere forms a temperature difference convection with the boiling bubbles in the cooking cavity 120, thereby achieving defoaming and anti-overflow.

[0057] In the cooking device of the present disclosure, a first air flow channel 310 and a second air flow channel 320 are provided in the cover body 200, and a vacuum pump 500 is provided on the second air flow channel 320, and the two air flow channels are used in cooperation. When the cooking cavity 120 does not reach the boiling state, the vacuum pump 500 is turned off, and the first air flow channel 310 acts as an exhaust valve, and the steam in the cooking cavity 120 is discharged through the first air flow channel 310. When the cooking cavity 120 reaches the boiling state, the vacuum pump 500 is turned on, and under the action of the vacuum pump 500, the steam in the cooking cavity 120 is discharged through the second air flow channel 320, while the outside atmosphere flows into the cooking cavity 120 through the first air flow channel 310, forming a temperature difference convection with the boiling bubbles in the cooking cavity 120, thereby achieving defoaming and anti-overflow.

[0058] In some embodiments, the cooking device includes an exhaust member 300, the exhaust member 300 is disposed in the cover body 200, and a first air flow channel 310 and a second air flow channel 320 are formed in the exhaust member 300.

[0059] In other words, the first air flow channel 310 and the second air flow channel 320 are integrated into one component, which is convenient for processing and assembly. The exhaust member 300 is a steam valve having a double air flow channel.

[0060] The connecting pipeline 400 is, for example, a section of flexible hose, and the connecting pipeline 400 extends and runs in the cover body 200. After the exhaust member 300 is installed on the cover body 200, the second air flow channel 320 is communicated with the connecting pipeline 400.

[0061] In some embodiments, the first air flow channel 310 and the second air flow channel 320 are adjacently arranged, and the structure is compact.

[0062] In some embodiments, the first air flow channel 310 and the second air flow channel 320 generally extend along the height direction of the cover body 200, which is convenient for gas flow.

[0063] In some embodiments, the first air flow channel 310 and the second air flow channel 320 are bent channel structures, which helps to improve the anti-overflow effect.

[0064] In some embodiments, the first air flow channel 310 has a first ventilation opening 311, and the first ventilation opening 311 communicates with the cooking cavity 120. The connecting pipeline 400 has a second ventilation opening 430, and the second ventilation opening 430 communicates with the cooking cavity 120.

[0065] The first ventilation opening 311 and the second ventilation opening 430 are arranged at intervals along the inner diameter direction of the cooking cavity 120. Refer to Figure 3 , the distance between the first ventilation opening 311 and the second ventilation opening 430 is far, and the gas flows along the radial direction of the inner container 110, which helps to improve the convection effect and further improve the anti-overflow and anti-foaming effects.

[0066] In some embodiments, the connecting pipeline 400 includes a connected first pipeline 410 and a second pipeline 420.

[0067] The first pipeline 410 extends along the transverse direction of the cover body 200, the first pipeline 410 communicates with the second air flow channel 320, and a vacuum pump 500 is arranged on the first pipeline 410. The vacuum pump 500 is horizontally arranged to make full use of the internal space of the cover body 200. If the vacuum pump 500 is vertically arranged, it will cause an increase in the height of the cover body 200.

[0068] The second pipeline 420 communicates with the cooking cavity 120, and the second pipeline 420 extends along the height direction of the cover body 200, facilitating the upward flow and exhaust of steam.

[0069] In some embodiments, a one-way valve 600 is arranged on the connecting pipeline 400, and the one-way valve 600 is located at the intake end of the vacuum pump 500. The one-way valve 600 prevents gas backflow.

[0070] In some embodiments, the vacuum pump 500 is turned on when the remaining cooking time of the cooking device is greater than or equal to a set value. Judging whether the cooking cavity 120 reaches the boiling state through the remaining cooking time is more accurate and reliable.

[0071] In some embodiments, a first temperature sensor 710 is arranged on one side of the cover body 200 facing the cooking cavity 120 for detecting the temperature in the cooking cavity 120. For example, the first temperature sensor 710 is an NTC.

[0072] In some embodiments, a second temperature sensor 720 is arranged at the bottom of the inner container 110 for detecting the temperature in the cooking cavity 120. For example, the first temperature sensor 710 is an NTC.

[0073] By detecting the upper and lower temperatures of the cooking cavity 120 and combining with the cooking program, it helps to improve the cooking temperature control accuracy and cooking effect.

[0074] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

[0075] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A cooking device, comprising: A pot body, inside which a cooking cavity is formed; A lid body, connected to the pot body, and the lid body is configured to close or open the cooking cavity; Characterized in that, The cooking device further comprises: A first air flow channel, arranged inside the lid body, and the first air flow channel is configured to communicate the cooking cavity with the outside atmosphere; A second air flow channel, arranged inside the lid body, and one end of the second air flow channel communicates with the outside atmosphere; A connecting pipeline, arranged inside the lid body, one end of the connecting pipeline communicates with the cooking cavity, and the other end communicates with the other end of the second air flow channel; A vacuum pump, arranged on the connecting pipeline; When the cooking device is in the first working state, the vacuum pump is closed, and the steam in the cooking cavity is discharged through the first air flow channel; When the cooking device is in the second working state, the vacuum pump is turned on, the steam in the cooking cavity is discharged through the second air flow channel, and the outside atmosphere enters the cooking cavity through the first air flow channel.

2. The cooking device according to claim 1, wherein The cooking device comprises an exhaust member, the exhaust member is arranged inside the lid body, and the first air flow channel and the second air flow channel are formed inside the exhaust member.

3. The cooking device according to claim 1, wherein The first air flow channel and the second air flow channel are arranged adjacent to each other.

4. The cooking device according to claim 1, wherein The first air flow channel and the second air flow channel are of a bent channel structure.

5. The cooking device according to claim 1, wherein The first air flow channel has a first ventilation port, and the first ventilation port communicates with the cooking cavity; The connecting pipeline has a second ventilation port, and the second ventilation port communicates with the cooking cavity; The first ventilation port and the second ventilation port are arranged at intervals along the inner diameter direction of the cooking cavity.

6. The cooking device according to claim 1, wherein The connecting pipeline comprises a first pipeline and a second pipeline that are connected; The first pipeline extends along the transverse direction of the lid body, the first pipeline communicates with the second air flow channel, and the vacuum pump is arranged on the first pipeline; The second pipeline communicates with the cooking cavity, and the second pipeline extends along the height direction of the lid body.

7. The cooking device according to any one of claims 1 to 6, wherein A one-way valve is arranged on the connecting pipeline, and the one-way valve is located at the air inlet end of the vacuum pump.

8. The cooking device according to any one of claims 1 to 6, wherein The vacuum pump is turned on when the remaining cooking time of the cooking device is greater than or equal to a set value.

9. The cooking device according to any one of claims 1 to 6, wherein A first temperature sensor is arranged on the side of the lid body facing the cooking cavity.

10. The cooking device according to any one of claims 1 to 6, wherein The pot body comprises an inner pot, the inner pot forms the cooking cavity, and a second temperature sensor is arranged at the bottom of the inner pot.