Cooking equipment

Abstract

The utility model provides cooking equipment, and relates to the technical field of cooking equipment. The cooking equipment comprises a body which comprises a cooking cavity; the microbubble generating assembly is arranged on the body and used for generating microbubbles in the liquid in the cooking cavity; wherein the diameter of the microbubbles is smaller than or equal to 100 microns. The micro-bubble generating assembly capable of controlling the diameter of the bubbles to be smaller than or equal to 100 microns is installed in the cooking equipment, the bubble accumulation amount above liquid can be increased by reducing the size of the bubbles, the bubble existence time is prolonged by reducing the size of the bubbles, the foaming quality of the cooking equipment is improved, and the cooking efficiency is improved. The problems that the beverage is difficult to whip, the foaming effect is poor or the whipping amount is uncontrollable are solved, and the technical effect of improving the quality of the cooked beverage is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooking equipment technical field, specifically, relate to a cooking equipment. BACKGROUND

[0002] Milk, soybean milk and other liquid containing protein can produce a large number of bubbles through the bubble process, so as to optimize the taste of beverage, improve the quality of beverage, wherein the fineness of bubble and the stability of bubble are the key indicators to determine the quality of beverage. In the existing whipping foaming technology, the bubble size produced by the bubble machine in the beverage is large, and the large bubble size will affect the accumulation amount of the bubble on the top of beverage, and the large size bubble is easy to break, and the existence time is short, which leads to the technical problems of poor bubble fineness and poor stability of product. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art.

[0004] Therefore, the utility model provides a cooking equipment.

[0005] Therefore, the utility model provides a cooking equipment.

[0006] In the technical scheme, a cooking equipment is provided, the cooking equipment includes a body, the body is the main frame structure of the cooking equipment, and the body is used for positioning, supporting and protecting other structures on the cooking equipment. The body is formed with a cooking cavity, and the cooking cavity is used for accommodating food.

[0007] On this basis, the cooking equipment further includes a micro-bubble generating assembly, the micro-bubble generating assembly is installed on the body, and the micro-bubble generating assembly is at least partially located in the cooking cavity, and the micro-bubble generating assembly can generate micro-bubbles in the cooking cavity after being powered on.

[0008] Specifically, the present application defines the bubble with a diameter less than or equal to 100 μm as a micro-bubble.

[0009] By installing the micro-bubble generating assembly capable of controlling the bubble diameter to be less than or equal to 100 μm in the cooking equipment, on the one hand, the accumulation amount of the bubble on the top of liquid can be increased by reducing the size of the bubble, so as to improve the fineness of the bubble layer on the top of food and provide the user with a dense taste. On the other hand, the existence time of the bubble can also be prolonged by reducing the size of the bubble, so that the bubble layer on the top of food can exist for a long time.

[0010] For example, taking the production of milk tea as an example, in a 20cm deep beverage, if the diameter of the bubble in the bubble layer is about 2mm, the existence time of the bubble is about 0.1 second, and when the micro-bubble generating assembly of the present application produces micro-bubbles with a diameter of about 20μm, the existence time of the micro-bubbles is about 1000 seconds.

[0011] Therefore, by introducing the micro-bubble generating assembly capable of controlling the bubble size to be less than or equal to 100μm in the cooking equipment, the present application solves the technical problems of poor bubble fineness and poor stability in the related art, and further realizes the technical effects of improving the foaming quality of the cooking equipment and improving the quality of the prepared beverage.

[0012] In addition, the above-mentioned cooking equipment provided by the present application can further have the following additional technical features:

[0013] In some technical solutions of the present application, the micro-bubble generating assembly comprises: a first generating device, the first generating device is in communication with the cooking cavity, and the first generating device is used to generate micro-bubbles in the liquid in the cooking cavity; wherein the first generating device comprises: a steel bottle bubble machine, a gas bomb bubble machine, a pressurized gas dissolving machine, a decompression gas releasing machine or an electrolysis machine.

[0014] In this technical solution, the bubble generating assembly comprises the first generating device, and the first generating device is in communication with the cooking cavity. Specifically, after the liquid food is filled into the cooking cavity, the first generating device can be partially inserted below the liquid surface.

[0015] After the first generating device is turned on, micro-bubbles with a diameter less than or equal to 100μm can be directly generated in the liquid. The micro-bubbles float above the liquid surface under the action of buoyancy, thereby forming a bubble layer that is fine and cannot be dispersed for a short time on the beverage, and further realizing the technical effects of improving the quality of the prepared beverage and improving the user experience.

[0016] Specifically, the first generating device can be one or a combination of a steel bottle bubble machine, a gas bomb bubble machine, a pressurized gas dissolving machine, a decompression gas releasing machine or an electrolysis machine. The above-mentioned devices can control the size of the generated bubbles to be less than or equal to 100μm to meet the needs of the cooking equipment of the present application.

[0017] Specifically, micro-bubbles can also be generated by chemical method. When the micro-bubbles are generated by chemical method, the first generating device is a dispensing machine.

[0018] In some technical solutions of the present application, the micro-bubble generating assembly comprises: a conveying device; an acceleration device, the acceleration device is in communication with the conveying device and the cooking cavity, the conveying device is used to convey liquid to the acceleration device, and the acceleration device is used to change the flow rate of the liquid flowing through the conveying device; and an air inlet device, the air inlet device is connected with the acceleration device, and the air inlet device is used to introduce gas into the liquid flowing through the acceleration device.

[0019] In this technical solution, a second micro-bubble generating assembly is proposed, which can generate micro-bubbles inside and then inject the generated micro-bubbles above the liquid surface to form a bubble layer on the liquid surface of the beverage.

[0020] Specifically, the micro-bubble generating assembly includes a conveying device, an accelerating device, and an air inlet device, one end of the accelerating device is in communication with the conveying device, the other end of the accelerating device is in communication with the cooking cavity, and the air inlet device is connected with the accelerating device.

[0021] During operation, the conveying device is used to convey liquid into the accelerating device, the accelerating device can increase the flow rate of the conveyed liquid, and the air inlet device can introduce air into the liquid after the liquid is successfully accelerated by the accelerating device. Among them, the high-speed flowing liquid after acceleration can shear the gas conveyed by the air inlet device, and under the shearing and mixing action between the high-speed liquid and the gas, micro-bubbles with a diameter less than or equal to 100 μm can be generated. Finally, the micro-bubbles pass through the accelerating device into the cooking cavity and form a dense and long-lasting bubble layer on the liquid surface in the cooking cavity, thereby solving the technical problems of poor bubble fineness and poor stability in the related art, and achieving the technical effects of improving the foaming quality of the cooking equipment and improving the quality of the prepared beverage.

[0022] On this basis, the combination structure of the conveying device, the accelerating device, and the air inlet device can also realize the low-temperature generation of micro-bubbles.

[0023] Specifically, in the related art, the liquid is often heated during the foaming process. For example, in the process of whipping milk, high-temperature steam or a heating rod is used to heat the milk to improve the foaming property of milk protein and reduce the surface tension of milk, so as to ensure that the milk foam is in a relatively fine and stable state.

[0024] However, with the youthification of the modern milk tea consumer market, more and more people have abandoned hot drinks and turned to ice drinks and cold drinks. However, heating plays a crucial role in improving the quality of milk foam, which is also the key to good milk foam with steam whipping. When the user needs cold drinks, ice cubes need to be heated in the beverage to offset the heat brought by the high-temperature whipping process, which affects the concentration of the beverage and damages the quality of the beverage. At the same time, high-temperature steam mixed into the liquid during the introduction process will also reduce the concentration of the beverage and damage the quality of the beverage.

[0025] To this end, the application can directly produce a dense and long-lasting micro-bubble layer without the aid of a heating process through the way of high-speed liquid shearing airflow, so that the user can obtain a low-temperature beverage without the aid of ice cooling, avoiding the concentration of the beverage being destroyed by ice, and the technical scheme can directly shear the gas through the high-speed flowing milk in the process of preparing micro-bubbles, without introducing other liquids, so that the concentration of the beverage can also be ensured not to be destroyed, thereby realizing the technical effects of improving the quality of the beverage and enhancing the user experience.

[0026] In some technical solutions of the utility model, optionally, the conveying device comprises: a pump body, the pump body is arranged on the body, the pump body comprises an inlet and an outlet; a first pipeline, a first end of the first pipeline is in communication with the inlet; a second pipeline, a first end of the second pipeline is in communication with the outlet, and a second end of the second pipeline is in communication with the accelerating device.

[0027] In the technical solution, the conveying device comprises the pump body, the first pipeline and the second pipeline.

[0028] The inlet and the outlet are arranged on the pump body, the first end of the first pipeline is connected with the inlet on the pump body, the second end of the first pipeline is inserted into the liquid, the first end of the second pipeline is connected with the outlet, and the second end of the second pipeline is connected with the accelerating device.

[0029] During operation, the pump body can draw the liquid through the first pipeline, and after being pressurized and accelerated, the liquid is conveyed to the accelerating device through the second pipeline, so as to realize automatic water supply of the accelerating device, automatic generation of micro-bubbles, and further realize the technical effect of improving the automation degree of the cooking equipment. Moreover, compared with the scheme of actively supplying water to the accelerating device, the pump body can realize fine control of the liquid conveying amount, so as to accurately control the bubble generation amount and actual bubble generation, and further realize the technical effect of improving the intelligent degree of the cooking equipment.

[0030] In some technical solutions of the utility model, optionally, the second end of the first pipeline is in communication with the cooking cavity, and the pump body draws the liquid in the cooking cavity through the first pipeline; or the body further comprises a liquid storage cavity, the second end of the first pipeline is in communication with the liquid storage cavity, and the pump body draws the liquid in the liquid storage cavity through the first pipeline.

[0031] In the technical solution, the second end of the first pipeline is in communication with the cooking cavity and is specifically inserted below the liquid surface, the pump body draws the liquid in the cooking cavity through the first pipeline after the micro-bubble generating assembly is turned on, the liquid is accelerated by the accelerating device and shears the gas introduced by the air inlet device, micro-bubbles are generated, and finally the micro-bubbles are introduced into the cooking cavity by the accelerating device. With the continuous introduction of micro-bubbles, the first pipeline will not only draw the liquid in the cooking cavity, but also draw part of the micro-bubbles, so that this part of the micro-bubbles is secondarily whipped, thereby further reducing the size of the bubbles to enhance the density of the bubble layer and prolong the existence time of the bubble layer.

[0032] Therefore, by connecting the second end of the first pipeline to the cooking cavity, the circulation whipping of the micro-bubbles can be realized, thereby gradually reducing the diameter of the micro-bubbles, and the technical effect of improving the quality of the beverage can be achieved.

[0033] In another embodiment, a liquid storage cavity is further arranged in the body, the liquid storage cavity is used for storing liquid, the second end of the first pipeline is in communication with the liquid storage cavity, and the pump body can directly extract the liquid in the liquid storage cavity through the first pipeline. Compared with the above-mentioned circulation whipping scheme, this scheme is suitable for beverages with different foaming liquids and bubble layer bottom liquids, for example, when preparing milk coffee, the cooking cavity contains coffee liquid, the pump body extracts milk in the liquid storage cavity through the first pipeline, and micro-bubbles with a diameter of less than or equal to 100 μm are formed through the acceleration device and the air inlet device, and finally the micro-bubbles formed by this part of milk are delivered to the upper part of the coffee liquid, thereby forming milk coffee with distinct layers.

[0034] Therefore, by arranging the liquid storage cavity and connecting the second end of the first pipeline to the liquid storage cavity, the separation degree of the multi-layer beverage can be improved, and the technical effect of improving the quality of the beverage can be achieved.

[0035] In some technical schemes of the present application, the acceleration device comprises: a third pipeline, the first end of the third pipeline is in communication with the delivery device; the third pipeline comprises an acceleration section, the flow area of the acceleration section gradually decreases in the flow direction from the first end of the third pipeline to the second end of the third pipeline; the third pipeline further comprises an air inlet, the air inlet is located between the acceleration section and the second end of the third pipeline, and the air inlet device is in communication with the air inlet.

[0036] In this technical scheme, the acceleration device comprises a third pipeline, the first end of the third pipeline is in abutment with the second end of the second pipeline, and the second end of the third pipeline is in communication with the cooking cavity.

[0037] The middle section of the third pipeline is provided with an acceleration section with a gradually decreasing flow area, according to the fluid characteristics, reducing the flow area can accelerate the fluid, therefore, by arranging the acceleration section, the liquid can be accelerated to ensure that the liquid can form micro-bubbles by high-speed shearing of the gas.

[0038] Specifically, the third pipeline further comprises an air inlet, the air inlet is arranged between the acceleration section and the second end of the third pipeline, the air inlet is in communication with the air inlet device, the gas enters the third pipeline through the air inlet, after the high-speed liquid accelerated by the acceleration section shears the liquid, micro-bubbles are formed between the acceleration section and the second end of the third pipeline, and finally the bubbles are injected into the cooking cavity from the second end of the third pipeline under pressure to form a micro-bubble layer in the cooking cavity.

[0039] Compared with the scheme of accelerating the liquid by the booster pump, the cost of constructing the accelerating section with gradually reduced cross-sectional area in the third pipeline is lower, and the reliability is stronger, which is beneficial to reduce the production cost of the cooking equipment, and can reduce the failure rate of the micro-bubble generating assembly.

[0040] In some technical solutions of the utility model, optionally, in the flow direction, the flow area of the starting end of the accelerating section is the first area, and the flow area of the terminal end is the second area; the ratio of the first area to the second area ranges from greater than or equal to 5 to less than or equal to 15.

[0041] In the technical solution, the accelerating section includes a starting end and a terminal end, the starting end is close to the first end of the third pipeline, and the terminal end is close to the second end of the third pipeline; the liquid enters the accelerating section from the starting end, is accelerated in the accelerating section, and is discharged from the terminal end to the area where the gas inlet is located.

[0042] On this basis, the flow area of the starting end is the first area, the flow area of the terminal end is the second area, and the ratio of the first area to the second area is greater than or equal to 5 and less than or equal to 15.

[0043] By limiting the ratio of the first area to the second area to be greater than or equal to 5, it can be ensured that the accelerating section can increase the flow rate of the liquid to the predetermined speed, so as to ensure that the liquid can generate micro-bubbles by shearing the gas, thereby realizing the technical effects of improving the bubble density and prolonging the existence time of the bubbles. By limiting the ratio of the first area to the second area to be less than or equal to 15, it can be avoided that the flow area of the terminal end is too small, and the size of the terminal end is too small to affect the normal flow of the liquid, thereby realizing the technical effect of reducing the failure rate of the micro-bubble generating assembly.

[0044] Specifically, the ratio of the first area to the second area can be selected as 8, 10 or 12.

[0045] In the case where the ratio of the first area to the second area is 10, the liquid can increase the flow rate to nearly 10 times in the accelerating section.

[0046] In some technical solutions of the utility model, optionally, the gas inlet device includes: a fourth pipeline, a first end of the fourth pipeline is in communication with the accelerating device; a one-way valve, the one-way valve is arranged in the fourth pipeline, and the one-way valve is unidirectional in the direction from the second end of the fourth pipeline to the first end of the fourth pipeline.

[0047] In the technical solution, the gas inlet device includes the fourth pipeline and the one-way valve, the first end of the fourth pipeline is connected with the gas inlet on the third pipeline, and the second end of the fourth pipeline is provided with the one-way valve; in the working process, the gas is collected into the gas inlet from the fourth pipeline, and is sheared by the liquid accelerated in the third pipeline to form micro-bubbles.

[0048] The flow rate of the liquid in the third pipeline is relatively large, and the flow rate of the gas in the fourth pipeline is relatively low, so that there is a pressure difference between the third pipeline and the fourth pipeline, and the gas in the fourth pipeline can automatically flow into the third pipeline under the action of the pressure difference, thereby realizing automatic injection of the gas.

[0049] On this basis, the one-way valve in the fourth pipeline is unidirectionally open in the direction from the second end of the fourth pipeline to the first end of the fourth pipeline.

[0050] In some technical solutions of the present application, the air inlet device further comprises: an air charging component, which is in communication with the second end of the fourth pipeline.

[0051] In this technical solution, the air inlet device further comprises an air charging component, which is connected with the second end of the fourth pipeline, and the air charging component guides the gas into the third pipeline through the fourth pipeline.

[0052] Specifically, the air charging component comprises a gas pump, a gas cylinder or the like.

[0053] In the case of selecting a gas pump as the air charging component, the gas can be quantitatively and timely delivered, so as to finely control the generation process of the micro-bubbles.

[0054] In some technical solutions of the present application, the micro-bubble generating assembly further comprises: a heating device, which is arranged on the conveying device or the accelerating device, and is used for heating the liquid.

[0055] In this technical solution, the micro-bubble generating assembly further comprises a heating device, which is arranged on at least one of the conveying device and the accelerating device, and can heat the liquid or the micro-bubbles after being turned on, so that the micro-bubble generating assembly can output high-temperature micro-bubbles, thereby meeting the diversified needs of the beverage and improving the user experience.

[0056] Specifically, the heating device comprises a heating film, which is attached to the outer wall of the first pipeline, the second pipeline or the third pipeline, and can heat the liquid or the micro-bubbles inside after being electrified.

[0057] The additional aspects and advantages of the present application will become apparent from the following description part, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0058] The above and / or additional aspects and advantages of the present application will become apparent from the following description of embodiments taken in conjunction with the following drawings, wherein:

[0059] Figure 1A structural schematic view of a cooking device according to one embodiment of the present application is shown.

[0060] Figure 2 A structural schematic view of a micro-bubble generating assembly according to one embodiment of the present application is shown.

[0061] Figure 3 A structural schematic view of a cooking device according to one embodiment of the present application is shown.

[0062] Figure 4 A structural schematic view of a cooking device according to one embodiment of the present application is shown.

[0063] Figure 5 A structural schematic view of a cooking device according to one embodiment of the present application is shown.

[0064] Figure 6 A structural schematic view of a cooking device according to one embodiment of the present application is shown.

[0065] Corresponding relationship between reference signs and component names in the drawings is as follows: Figures 1 to 6

[0066] 100 cooking device, 110 body, 1102 cooking cavity, 1104 liquid storage cavity, 120 micro-bubble generating assembly, 122 first generating device, 124 conveying device, 1242 pump body, 12422 inlet, 12424 outlet, 1244 first pipeline, 1246 second pipeline, 126 accelerating device, 1262 third pipeline, 12622 accelerating section, 12624 air inlet, 128 air inlet device, 1282 fourth pipeline, 1284 one-way valve, 1286 air charging component, 129 heating device. DETAILED DESCRIPTION

[0067] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0068] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0069] The following description refers to the accompanying drawings that show embodiments of the present application. Figures 1 to 6 A cooking device according to some embodiments of the present application is described below with reference to the accompanying drawings.

[0070] As Figure 1 ,​Figure 2 and Figure 3 As shown in the figure, one embodiment of the utility model provides a cooking equipment 100, the cooking equipment 100 includes: the body 110, the body 110 includes cooking cavity 1102;Microbubble generating assembly 120, microbubble generating assembly 120 is located in the body 110, for generating microbubble in the liquid in cooking cavity 1102;Wherein, the diameter of microbubble is less than or equal to 100 μm.

[0071] In this embodiment, a cooking equipment 100 is provided, which includes a body 110, the body 110 is the main frame structure of the cooking equipment 100, and the body 110 is used for positioning, supporting and protecting other structures on the cooking equipment 100. Wherein, the cooking cavity 1102 is formed in the body 110, and the cooking cavity 1102 is used for accommodating food.

[0072] On this basis, the cooking equipment 100 further includes a microbubble generating assembly 120, the microbubble generating assembly 120 is installed on the body 110, and the microbubble generating assembly 120 is at least partially located in the cooking cavity 1102, and the microbubble generating assembly 120 can generate microbubbles in the cooking cavity 1102 after being powered on.

[0073] Specifically, the diameter of the bubble less than or equal to 100 μm is defined as microbubble, that is, the microbubble generating assembly 120 can generate bubbles with a diameter less than or equal to 100 μm in the cooking cavity 1102.

[0074] According to the diameter interval, the microbubble includes micrometer bubble and micro-nanometer bubble, when the diameter of the bubble is below 100 μm, it is called micrometer bubble, and the bubble with a diameter below 100 nm is called nanometer bubble.

[0075] The relationship between the volume and the surface area of the bubble can be expressed by the formula. The volume of the bubble is V1, V1=(4×π)÷(3×r), the surface area of the bubble is A, A=4×π×r, and the combination of the two formulas can obtain A=3×V÷r, the total surface area of the bubble is V2, V2=n×A=3×V2÷r, wherein r is the diameter of a single bubble, and n is the number of bubbles.

[0076] That is to say, under the condition that the total volume is unchanged, the total surface area of the bubble is inversely proportional to the diameter of a single bubble. According to the formula, the specific surface area of the 10 μm bubble is theoretically 100 times that of the 1 mm bubble under a certain volume. The contact area of air and water is increased by 100 times, and various reaction speeds are also increased by 100 times.

[0077] The gas-liquid interface exists around the bubbles in water, and the existence of the gas-liquid interface makes the bubbles subject to the action of the surface tension of water. For bubbles with a spherical interface, the surface tension can compress the gas in the bubble, so that more gas in the bubble is dissolved into water. According to the Young-Laplace equation, the pressure on a bubble with a diameter of 0.1 mm or more is very small and can be ignored, while a microbubble with a diameter of 10 μm will be subjected to a pressure of 0.3 atm, and a bubble with a diameter of 1 μm will be subjected to a pressure of up to 3 atm. The dissolution of microbubbles in water is a process of gradual shrinkage of the bubble, and the increase in pressure will increase the dissolution rate of the gas, accompanied by an increase in specific surface area, and the speed of the bubble shrinking will become faster and faster, so that it is eventually dissolved into water, and the pressure on the micro-nano bubble when it is about to disappear is theoretically infinite.

[0078] There is a special state of gas on the interface between gas and liquid. Microbubbles are small bubbles with a diameter of less than 100 μm that occur when bubbles occur, also known as micro-nano bubbles. After the occurrence of microbubbles, the bubble itself shrinks, and in this process, the rising speed slows down due to the small size of the bubble, resulting in high melting efficiency. The shrinkage process of microbubbles is accompanied by an increase in negative charge. So far, the peak state of its negative charge is when the bubble diameter is 10 μm to 30 μm. When the bubble diameter is smaller than them, there is a tendency for the negative charge to decrease.

[0079] By installing a microbubble generating assembly capable of controlling the bubble diameter to be less than or equal to 100 μm in the cooking device 100, on the one hand, the amount of bubble accumulation above the liquid can be increased by reducing the size of the bubble, thereby improving the delicacy of the bubble layer on the top of the food and providing the user with a dense mouthfeel. On the other hand, the time of existence of the bubble can also be prolonged by reducing the size of the bubble, so that the bubble layer on the top of the food can exist for a long time.

[0080] For example, taking the preparation of milk tea as an example, in a 20 cm deep beverage, if the diameter of the bubble in the bubble layer is about 2 mm, the existence time of the bubble is about 0.1 second. When the microbubble generating assembly 120 of the present application produces microbubbles with a diameter of about 20 μm, the existence time of the microbubbles is about 1000 seconds.

[0081] Therefore, by introducing the microbubble generating assembly 120 capable of controlling the bubble size to be less than or equal to 100 μm in the cooking device 100, the technical problems of poor bubble delicacy and poor stability in the related art are solved, and the technical effects of improving the foaming quality of the cooking device 100 and improving the quality of the prepared beverage are achieved.

[0082] As Figure 1As shown, in some embodiments of the present invention, optionally, the microbubble generating component 120 includes: a first generating device 122, which is connected to the cooking chamber 1102, and is used to generate microbubbles in the liquid in the cooking chamber 1102; wherein, the first generating device 122 includes: a gas cylinder bubble machine, a gas bomb bubble machine, a pressurized gas dissolving machine, a depressurized gas release machine, or an electrolysis machine.

[0083] In this embodiment, the bubble generating component includes a first generating device 122, which is connected to the cooking chamber 1102. Specifically, after liquid food is filled into the cooking chamber 1102, the first generating device 122 can be partially inserted below the liquid surface.

[0084] After the first generating device 122 is turned on, it can directly generate microbubbles with a diameter of less than or equal to 100μm in the liquid. Under the action of buoyancy, the microbubbles float to the surface of the liquid, thereby forming a delicate bubble layer on the beverage that cannot be dissipated in a short time. This achieves the technical effect of improving the quality of the cooked beverage and enhancing the user experience.

[0085] Specifically, the first generating device 122 may be one or a combination of a gas cylinder bubble machine, a gas bomb bubble machine, a pressurized gas dissolving machine, a depressurized gas release machine, or an electrolysis machine. The above-mentioned devices can control the size of the generated bubbles to less than or equal to 100 μm to meet the requirements of the cooking equipment 100 of this application.

[0086] Specifically, microbubbles can also be generated by chemical methods. When microbubbles are generated by chemical methods, the first generating device 122 is a feeding machine.

[0087] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of this utility model, optionally, the microbubble generating component 120 includes: a conveying device 124; an accelerating device 126, the accelerating device 126 being connected to the conveying device 124 and the cooking chamber 1102, the conveying device 124 being used to convey liquid into the accelerating device 126, the accelerating device 126 being used to change the flow rate of the liquid flowing through the conveying device 124; and an air intake device 128, the air intake device 128 being connected to the accelerating device 126, the air intake device 128 being used to introduce gas into the liquid flowing through the accelerating device 126.

[0088] In this embodiment, a second microbubble generating component 120 is proposed, which can generate microbubbles internally and then inject the generated microbubbles above the liquid surface to form a bubble layer on the surface of the beverage.

[0089] Specifically, the micro-bubble generating assembly 120 comprises a conveying device 124, an accelerating device 126 and an air inlet device 128, one end of the accelerating device 126 is in communication with the conveying device 124, and the other end of the accelerating device 126 is in communication with the cooking cavity 1102, and the air inlet device 128 is connected with the accelerating device 126.

[0090] In the working process, the conveying device 124 is used for conveying liquid into the accelerating device 126, the accelerating device 126 can increase the flow rate of the conveyed liquid, and the air inlet device 128 can introduce air into the liquid after the liquid is successfully accelerated by the accelerating device 126. Among them, the high-speed flowing liquid after acceleration can shear the gas conveyed by the air inlet device 128, and under the shearing and mixing action between the high-speed liquid and the gas, micro-bubbles with a diameter less than or equal to 100 μm can be generated. Finally, the micro-bubbles pass through the accelerating device 126 into the cooking cavity 1102, and form a dense and long-lasting bubble layer on the liquid surface in the cooking cavity 1102, thereby solving the technical problems of poor bubble fineness and poor stability in the related art, and achieving the technical effects of improving the foaming quality of the cooking equipment 100 and improving the quality of the prepared beverage.

[0091] On this basis, the combination structure of the conveying device 124, the accelerating device 126 and the air inlet device 128 can also realize the low-temperature generation of micro-bubbles.

[0092] Specifically, in the related art, the liquid is usually heated during the foaming process. For example, in the process of foaming milk, high-temperature steam or a heating rod is used to heat the milk to improve the foaming property of milk protein and reduce the surface tension of milk, so as to ensure that the milk foam is in a relatively fine and stable state.

[0093] However, with the youthification of the modern milk tea consumption market, more and more people have abandoned hot drinks and turned to ice drinks and cold drinks. However, heating plays a crucial role in improving the quality of milk foam, which is also the key to good milk foam by steam whipping. When the user needs cold drinks, ice cubes need to be heated in the beverage to offset the heat brought by the high-temperature whipping process, which affects the concentration of the beverage and damages the quality of the beverage. At the same time, high-temperature steam mixed into the liquid during the introduction process will also reduce the concentration of the beverage and damage the quality of the beverage.

[0094] To this end, the application can directly produce a dense and long-lasting micro-bubble layer without the aid of a heating process through the way of high-speed liquid shearing gas flow, so that the user can obtain a low-temperature beverage without the aid of ice cooling, avoiding the concentration of the beverage being destroyed by ice, and the embodiment can directly shear the gas through the high-speed flowing milk in the process of preparing micro-bubbles, without introducing other liquids, so that the concentration of the beverage can also be ensured not to be destroyed, thereby realizing the technical effects of improving the quality of the beverage and improving the user experience.

[0095] As Figure 2 , Figure 3 and Figure 4 indicate, in some embodiments of the application, the conveying device 124 includes: a pump body 1242, the pump body 1242 is arranged in the body 110, the pump body 1242 includes an inlet 12422 and an outlet 12424; a first pipeline 1244, a first end of the first pipeline 1244 is in communication with the inlet 12422; a second pipeline 1246, a first end of the second pipeline 1246 is in communication with the outlet 12424, and a second end of the second pipeline 1246 is in communication with the accelerating device 126.

[0096] In this embodiment, the conveying device 124 includes the pump body 1242, the first pipeline 1244 and the second pipeline 1246.

[0097] Among them, the pump body 1242 is provided with the inlet 12422 and the outlet 12424, the first end of the first pipeline 1244 is connected with the inlet 12422 on the pump body 1242, the second end of the first pipeline 1244 is inserted into the liquid, the first end of the second pipeline 1246 is connected with the outlet 12424, and the second end of the second pipeline 1246 is connected with the accelerating device 126.

[0098] During operation, the pump body 1242 can draw liquid through the first pipeline 1244, and after being pressurized and accelerated, the liquid is delivered to the accelerating device 126 through the second pipeline 1246, so as to realize automatic water supply of the accelerating device 126, automatic generation of micro-bubbles, and further realize the technical effect of improving the automation degree of the cooking equipment 100. Moreover, compared with the scheme of actively supplying water to the accelerating device 126, the pump body 1242 can realize fine control of the liquid delivery amount, so as to accurately control the bubble output and the actual bubble output, and further realize the technical effect of improving the intelligent degree of the cooking equipment 100.

[0099] As Figure 2 , Figure 3 and Figure 4As shown, in some embodiments of the utility model, optionally, the second end of the first pipeline 1244 communicates with the cooking cavity 1102, and the pump body 1242 extracts the liquid in the cooking cavity 1102 through the first pipeline 1244; or the body 110 further includes a liquid storage cavity 1104, the second end of the first pipeline 1244 communicates with the liquid storage cavity 1104, and the pump body 1242 extracts the liquid in the liquid storage cavity 1104 through the first pipeline 1244.

[0100] In this embodiment, the second end of the first pipeline 1244 communicates with the cooking cavity 1102, and is specifically inserted below the liquid level, after the micro-bubble generating assembly is turned on, the pump body 1242 extracts the liquid in the cooking cavity 1102 through the first pipeline 1244, the liquid is accelerated by the accelerating device 126 and shears the gas introduced by the gas inlet device 128 to generate micro-bubbles, and finally the micro-bubbles are introduced into the cooking cavity 1102 by the accelerating device 126. With the continuous introduction of micro-bubbles, the first pipeline 1244 will not only extract the liquid in the cooking cavity 1102, but also extract part of the micro-bubbles, so that this part of the micro-bubbles is secondarily whipped, thereby further reducing the size of the bubbles to enhance the density of the bubble layer and prolong the existence time of the bubble layer.

[0101] As can be seen, by connecting the second end of the first pipeline 1244 to the cooking cavity 1102, the circulation of the micro-bubbles can be realized, thereby gradually reducing the diameter of the micro-bubbles and achieving the technical effect of improving the quality of the beverage.

[0102] In another embodiment, the body 110 is further provided with a liquid storage cavity 1104, the liquid storage cavity 1104 is used for storing liquid, the second end of the first pipeline 1244 communicates with the liquid storage cavity 1104, and the pump body 1242 can directly extract the liquid in the liquid storage cavity 1104 through the first pipeline 1244. Compared with the above-mentioned circulation whipping scheme, this scheme is suitable for beverages with different foaming liquids and bubble layer bottom liquids, for example, when preparing milk tea, the cooking cavity 1102 contains coffee liquid, the pump body 1242 extracts the milk in the liquid storage cavity 1104 through the first pipeline 1244, and forms micro-bubbles with a diameter less than or equal to 100 μm through the accelerating device 126 and the gas inlet device 128, and finally the micro-bubbles formed by this part of the milk are transported above the coffee liquid, thereby forming the milk tea with distinct layers.

[0103] As can be seen, by setting the liquid storage cavity 1104 and connecting the second end of the first pipeline 1244 to the liquid storage cavity 1104, it is beneficial to improve the layer separation degree of the multi-layer beverage, thereby achieving the technical effect of improving the quality of the beverage.

[0104] As Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, in some embodiments of this utility model, optionally, the accelerating device 126 includes: a third pipe 1262, the first end of the third pipe 1262 being connected to the conveying device 124; the third pipe 1262 includes an accelerating section 12622, in the flow direction from the first end of the third pipe 1262 to the second end of the third pipe 1262 ( Figure 6 As shown by the middle arrow a), the flow area of ​​the acceleration section 12622 gradually decreases; the third pipeline 1262 also includes an air inlet 12624, which is located between the acceleration section 12622 and the second end of the third pipeline 1262, and the air intake device 128 is connected to the air inlet 12624.

[0105] In this embodiment, the acceleration device 126 includes a third pipe 1262, the first end of the third pipe 1262 is connected to the second end of the second pipe 1246, and the second end of the third pipe 1262 is connected to the cooking cavity 1102.

[0106] The third pipeline 1262 has an acceleration section 12622 with a gradually decreasing flow area in the middle section. According to the fluid characteristics, reducing the flow area can accelerate the fluid. Therefore, by setting the acceleration section 12622, the liquid can be accelerated to ensure that the liquid can form microbubbles by high-speed shearing of the gas.

[0107] Specifically, the third pipe 1262 also includes an air inlet 12624, which is located between the acceleration section 12622 and the second end of the third pipe 1262. The air inlet 12624 is connected to the air intake device 128. Gas enters the third pipe 1262 through the air inlet 12624. After the gas enters the air inlet 12624, the high-speed liquid accelerated by the acceleration section 12622 immediately shears the liquid to form microbubbles between the acceleration section 12622 and the second end of the third pipe 1262. Finally, the bubbles are injected into the cooking chamber 1102 under pressure from the second end of the third pipe 1262 to form a microbubble layer in the cooking chamber 1102.

[0108] Compared to the solution of accelerating liquid by using a booster pump, constructing an acceleration section 12622 with a gradually decreasing cross-sectional area in the third pipeline 1262 is less costly and more reliable, which helps to reduce the production cost of cooking equipment and can reduce the failure rate of the microbubble generating component 120.

[0109] like Figure 6 As shown, in some embodiments of this utility model, optionally, in the flow direction, the starting end of the acceleration section 12622 ( Figure 6 The flow area shown by the middle arrow (b) is the first area, and the end ( Figure 6The flow area of the start end (indicated by the middle arrow c) is a second area; and a ratio of the first area to the second area ranges from greater than or equal to 5 to less than or equal to 15.

[0110] In this embodiment, the acceleration section 12622 includes a start end and an end end, the start end is close to the first end of the third pipeline 1262, and the end end is close to the second end of the third pipeline 1262. Liquid enters the acceleration section 12622 from the start end, is accelerated in the acceleration section 12622, and is discharged from the end end to the region where the air inlet 12624 is located.

[0111] On this basis, the flow area of the start end is a first area, the flow area of the end end is a second area, and a ratio of the first area to the second area ranges from greater than or equal to 5 to less than or equal to 15.

[0112] By limiting the ratio of the first area to the second area to be greater than or equal to 5, it can be ensured that the acceleration section 12622 can increase the flow rate of the liquid to a predetermined speed, so as to ensure that the liquid can generate micro-bubbles by shearing gas, thereby achieving the technical effects of improving the bubble density and prolonging the existence time of the bubbles. By limiting the ratio of the first area to the second area to be less than or equal to 15, it can be avoided that the flow area of the end end is too small, so as to avoid that the small size of the end end affects the normal flow of the liquid, thereby achieving the technical effect of reducing the failure rate of the micro-bubble generating assembly 120.

[0113] Specifically, the ratio of the first area to the second area can be selected to be 8, 10 or 12.

[0114] In the case where the ratio of the first area to the second area is 10, the liquid can increase the flow rate to nearly 10 times in the acceleration section 12622.

[0115] As shown in Figure 3 , Figure 4 and Figure 6 , in some embodiments of the utility model, optionally, the air inlet device 128 includes: a fourth pipeline 1282, a first end of the fourth pipeline 1282 communicates with the acceleration device 126; a one-way valve 1284, the one-way valve 1284 is arranged in the fourth pipeline 1282, and the one-way valve 1284 is unidirectional in the direction from the second end of the fourth pipeline 1282 to the first end of the fourth pipeline 1282.

[0116] In this embodiment, the air inlet device 128 includes the fourth pipeline 1282 and the one-way valve 1284, the first end of the fourth pipeline 1282 is butt jointed with the air inlet 12624 on the third pipeline 1262, and the second end of the fourth pipeline 1282 is provided with the one-way valve 1284. In the working process, gas is converged into the air inlet 12624 from the fourth pipeline 1282, and is sheared by the liquid accelerated in the third pipeline 1262 to form micro-bubbles.

[0117] The flow rate of the liquid in the third pipeline 1262 is large, and the flow rate of the gas in the fourth pipeline 1282 is relatively low, so that there is a pressure difference between the third pipeline 1262 and the fourth pipeline 1282, and the gas in the fourth pipeline 1282 can automatically flow into the third pipeline 1262 under the action of the pressure difference, thereby realizing automatic injection of the gas.

[0118] On this basis, the one-way valve 1284 in the fourth pipeline 1282 is unidirectionally open in the direction from the second end of the fourth pipeline 1282 to the first end of the fourth pipeline 1282. By arranging the one-way valve 1284, the liquid and the micro-bubbles in the third pipeline 1262 can be prevented from leaking from the fourth pipeline 1282, thereby realizing the technical effect of improving the reliability of the micro-bubble generating assembly 120.

[0119] As shown in Figure 3 and Figure 4 in some embodiments of the utility model, optionally, the air inlet device 128 further includes: an air charging component 1286, the air charging component 1286 is communicated with the second end of the fourth pipeline 1282.

[0120] In this embodiment, the air inlet device 128 further includes the air charging component 1286, the air charging component 1286 is connected with the second end of the fourth pipeline 1282, and the air charging component 1286 guides the gas into the third pipeline 1262 through the fourth pipeline 1282.

[0121] Specifically, the air charging component 1286 includes a gas pump, a gas cylinder and the like.

[0122] In the case of selecting the gas pump as the air charging component 1286, the quantitative delivery and the timing delivery of the gas can be realized, so that the generation process of the micro-bubbles is fine controlled.

[0123] As shown in Figure 3 in some embodiments of the utility model, optionally, the micro-bubble generating assembly 120 further includes: a heating device 129, the heating device 129 is arranged on the conveying device 124 or the accelerating device 126, and the heating device 129 is used for heating the liquid.

[0124] In this embodiment, the micro-bubble generating assembly 120 further includes the heating device 129, the heating device 129 is arranged on at least one of the conveying device 124 and the accelerating device 126, and the heating device 129 can heat the liquid or the micro-bubbles after being turned on, so that the micro-bubble generating assembly can output the micro-bubbles with high temperature, thereby meeting the diversified needs of the beverage and improving the use experience of the user.

[0125] Specifically, the heating device 129 includes a heating film, the heating film is attached to the outer wall of the first pipeline 1244, the second pipeline 1246 or the third pipeline 1262, and the heating film can heat the liquid or the micro-bubbles inside after being electrified.

[0126] Specifically, the microbubble generating assembly provided in the present application is compared with the frothing device in the related art through experiments, and specific experimental data is shown in Table 1 below.

[0127] Table 1

[0128] Experimental group Comparative example 1 Comparative example 2 Example 1 Example 2 Example 3 Milk foam temperature (°C) 65.2 12.2 12.5 60.5 11.3 Milk foam stability (%) 84.0 76.2 94.1 96.3 90.2 Milk foam creaminess score 8 6 9 10 8 Milk foam flowability score 7 5 9 9 8 Milk foam water incorporation rate (%) 10.5 0 0 0 0

[0129] In the table, Comparative Example 1 uses a steam frothing machine in the related art. Comparative Example 2 uses a magnetic stirrer in the related art. Example 1 adopts the cycle frothing mode of the cooking device 100 of the present application, that is, the first pipeline 1244 is connected to the pump body 1242 and the cooking cavity 1102, and Example 1 is not heated during the frothing process. Example 2 adopts the cycle frothing mode of the cooking device 100 of the present application, and Example 2 is heated during the frothing process. Example 3 adopts the single frothing mode of the cooking device 100 of the present application, that is, the first pipeline 1244 is connected to the pump body 1242 and the liquid storage cavity 1104, and Example 3 is not heated during the frothing process.

[0130] From the experimental results, it can be seen that, compared with Comparative Example 2, Comparative Example 1 has a great improvement in milk froth quality due to heating and other reasons, but the water content of the steam frothing reaches 10.5%, which reduces the richness of the milk froth to a certain extent. Using the cooking device 100 provided in the present application, the milk froth stability, fineness and flowability are all better than the steam frothing scheme and the magnetic stirring scheme without adding water. Therefore, the experimental results prove the feasibility of the technical scheme.

[0131] In particular, the milk froth quality also presents the following rules: Example 2 > Example 1 > Example 3, so it is recommended to use the cycle frothing function, and if there is no cold / ice drink demand, it is also recommended to use the heating function.

[0132] It needs to be clear that in the claims, the description and the drawings of the utility model, the term "multiple" refers to two or more than two, unless there is an additional explicit limitation, the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship shown in the drawings, only for more convenient description of the utility model and make the description process more simple, and is not intended to indicate or imply that the device or element must have the described specific orientation, constructed and operated in a specific orientation, therefore these descriptions cannot be understood as a limitation of the utility model; the terms "connection", "installation", "fixation" and the like should be understood broadly, for example, "connection" can be the fixed connection between multiple objects, can also be detachable connection between multiple objects, or integrally connected; it can be direct connection between multiple objects, can also be indirect connection between multiple objects through intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances of the above data.

[0133] In the claims, the description and the drawings of the utility model, the description of the terms "one embodiment", "some embodiments", "specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the claims, the description and the drawings of the utility model, the illustrative representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0134] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, for those skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A cooking apparatus, characterized by, The cooking device comprises: a body comprising a cooking cavity; a micro-bubble generating assembly arranged on the body and configured to generate micro-bubbles in a liquid in the cooking cavity; wherein the micro-bubbles have a diameter of 100 μm or less.

2. The cooking apparatus according to claim 1, characterized in that, The micro-bubble generating assembly comprises: a first generating device in communication with the cooking cavity and configured to generate the micro-bubbles in the liquid in the cooking cavity; wherein the first generating device comprises a steel cylinder bubble machine, a gas bomb bubble machine, a pressurized dissolved gas machine, a decompression gas releasing machine or an electrolysis machine.

3. The cooking apparatus according to claim 1, characterized in that, The micro-bubble generating assembly comprises: a conveying device; an accelerating device in communication with the conveying device and the cooking cavity, the conveying device being configured to convey the liquid to the accelerating device, and the accelerating device being configured to change the flow rate of the liquid flowing through the conveying device; an air inlet device connected to the accelerating device and configured to introduce air into the liquid flowing through the accelerating device.

4. The cooking apparatus according to claim 3, characterized in that, The conveying device comprises: a pump body arranged on the body, the pump body comprising an inlet and an outlet; a first pipeline having a first end in communication with the inlet; a second pipeline having a first end in communication with the outlet and a second end in communication with the accelerating device.

5. The cooking device according to claim 4, wherein: the second end of the first pipeline is in communication with the cooking cavity, and the pump body draws the liquid in the cooking cavity through the first pipeline; or the body further comprises a liquid storage cavity, and the second end of the first pipeline is in communication with the liquid storage cavity, and the pump body draws the liquid in the liquid storage cavity through the first pipeline.

6. The cooking apparatus according to claim 3, wherein The accelerating device comprises: a third pipeline having a first end in communication with the conveying device; the third pipeline comprises an accelerating section, and in a flow direction from the first end of the third pipeline to a second end of the third pipeline, a flow area of the accelerating section gradually decreases; the third pipeline further comprises an air inlet located between the accelerating section and the second end of the third pipeline, and the air inlet device is in communication with the air inlet.

7. The cooking device according to claim 6, wherein: in the flow direction, a flow area of a starting end of the accelerating section is a first area, and a flow area of a terminal end of the accelerating section is a second area; a ratio of the first area to the second area is greater than or equal to 5 and less than or equal to 15.

8. The cooking apparatus according to claim 3, wherein The air inlet device comprises: a fourth pipeline having a first end in communication with the accelerating device; a one-way valve arranged on the fourth pipeline and configured to be unidirectionally openable from the second end of the fourth pipeline to the first end of the fourth pipeline.

9. The cooking apparatus according to claim 8, characterized in that, The air inlet device further comprises: an air charging component in communication with the second end of the fourth pipeline.

10. The cooking apparatus according to any one of claims 3 to 9, characterized in that, The micro-bubble generating assembly further comprises: a heating device arranged on the conveying device or the accelerating device and configured to heat the liquid.

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