CN211354969U

CN211354969U - Food steaming tool

Info

Publication number: CN211354969U
Application number: CN201920074651.3U
Authority: CN
Inventors: 邓力
Original assignee: Shenzhen Hanshi Intelligent Technology Co ltd
Current assignee: Shenzhen Hanshi Intelligent Technology Co ltd
Priority date: 2019-01-15
Filing date: 2019-01-15
Publication date: 2020-08-28
Anticipated expiration: 2029-01-15

Abstract

The utility model is suitable for a cooking utensil technical field provides a food evaporates utensil, food evaporates the utensil and includes: a steaming tool body; a food carrying structure located within the steaming appliance body; and the steam circulation driving device drives the steam in the steaming tool body to forcibly circulate through the food on the food bearing structure. The embodiment of the utility model provides a make the steam cycle of food of flowing through the food surface, avoid heat and moisture to run off outside the utensil that evaporates to temperature and velocity of flow when maintaining and controlling steam flow through food, and then improve food heating efficiency, promote the food quality, reduce the consumption water consumption, energy-concerving and environment-protective.

Description

Food steaming tool

Technical Field

The utility model belongs to the cooking utensil field especially relates to a food evaporates utensil.

Background

Steaming is a common cooking mode in the existing cooking modes. Conventional food steamers include food steamers, steam boxes, and the like. The traditional steaming tool heats boiling water at the bottom, so that steam penetrates through the food steaming tool, and food inside the steaming tool is heated, the faster the heating speed of the food is, and the better the quality of the food is. The rate of heating of the food product is influenced by two factors, the temperature of the gas flow through the food product and the flow rate. However, the steam of the conventional steaming device is discharged from the top, and in order to obtain higher temperature and flow rate of the air flow, a large amount of heat and moisture are necessarily lost from the top. Present electric steaming tool, if electric steam box, electric steaming cabinet, electric steamer etc., it is more intelligent more convenient to control, but the speed of food heating and the quality of steaming food all than traditional steaming tool worse, in order to overcome this problem, current way adopts powerful steam generator, also aggravate the loss of heat and moisture when improving rate of heating, the price/performance ratio is extremely low, serious waste has been caused, the application of electric food steaming tool in family and commercial environment has been restricted greatly.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a food evaporates utensil aims at solving current food and evaporates the utensil through direct discharge food steaming utensil behind the food to cause heat and moisture to run off, and then reduce and evaporate the problem of utensil heating efficiency.

The embodiment of the utility model provides a realize like this, a food evaporates utensil, food evaporates the utensil and includes:

a steaming tool body;

a food carrying structure located within the steaming appliance body; and the steam circulation driving device drives the steam in the steaming tool body to forcibly circulate through the food on the food bearing structure.

Preferably, the food steamer further comprises:

and the steam generating device is used for conveying steam into the steaming tool body.

Preferably, the food steamer further comprises:

a first control device for controlling the change rate of the steam in the steaming tool body.

Preferably, the first control means controls the rate of change of the steam by one or a combination of the following conditions:

in a first preset time period, the steam generating device generates an outlet steam flow-time relation of the steam;

in a second preset time period, the temperature-time relation of the gas in the steaming tool body,

In a third preset time period, the steam pressure-time relation in the steaming tool body is realized;

and in a fourth preset time period, the food temperature-time index relation in the steaming tool body is realized.

Preferably, the food steamer further comprises: and the driving control device is used for driving and controlling the flow rate and/or the direction of the steam in the steaming tool body.

Preferably, the drive control means controls the flow rate of the steam generated by the steam generation means through the steam generation means; and/or

The drive control device controls the flow speed of the steam in the steaming tool body through the steam circulation drive device.

Preferably, the steam circulation driving device comprises one or a combination of several of a centrifugal fan, an axial flow fan and a crossflow fan.

Preferably, the steam generating device comprises an energy storage steamer.

Preferably, the food steamer further comprises: and the cooler is used for cooling the steam circulation driving device.

Preferably, a heat preservation part is arranged between the steaming tool body and the external environment.

Preferably, the steamer body comprises an integral body structure having a first enclosure, the integral body structure comprising the food carrying structure and the steam generating device within the first enclosure; or

The steaming tool body comprises a separated body structure with a second surrounding space, a third surrounding space and a first communicating pipeline communicated with the second surrounding space and the third surrounding space, and the separated body structure further comprises a food bearing structure in the second surrounding space and a steam generating device in the third surrounding space.

Preferably, the steam circulation driving device provides a driving force for promoting the movement of steam to the space where the food carrying structure is located so as to drive the steam in the space where the food carrying structure is located to flow through the food carrying structure from the steam inflow end to the steam outflow end of the food carrying structure;

preferably, a steam distribution device for guiding steam is arranged between the steam inflow end and the steam outflow end of the food carrying structure.

Preferably, the steam circulation driving device is positioned in the steaming tool body; or

The steam circulation driving device is positioned outside the steaming tool body and is communicated with the steaming tool body through a second communication pipeline so as to transmit the driving force for promoting the steam to move through the second communication pipeline, drive the steam in the space where the food bearing structure is positioned, and flow through the food bearing structure from the steam inflow end to the steam outflow end of the food bearing structure.

The embodiment of the utility model provides a can make the steam cycle of food of flowing through the food surface, avoid heat and moisture to run off outside steaming the utensil to temperature and velocity of flow when maintaining and controlling steam flow through food, and then improve food heating efficiency, promote the food quality, reduce the consumption, energy-concerving and environment-protective.

Drawings

Fig. 1 is a schematic structural diagram of a food steaming tool according to an embodiment of the present invention;

fig. 2 is a schematic view of a connection structure of a first control device in the food steaming tool according to the embodiment of the present invention;

fig. 3 is a schematic view of a connection structure of a drive control device in the food steaming tool according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an airflow distribution device provided in an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a food steamer provided by an embodiment of the present invention;

fig. 6 is a schematic structural view of a food steaming box according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings and the embodiments. It should be understood that the description herein of specific embodiments is intended to be illustrative of the embodiments of the invention and is not intended to limit the embodiments of the invention.

The prior food steaming tool, such as a small-sized steamer for household or a large-sized steamer for a large canteen, is a representative steaming tool. A common steamer that is arranged in the family, steam from the steam generator of steamer bottom produce, naturally flow through behind the food on the food bearing structure of top, run off outside steaming utensil through pneumatic valve or other exports, taken away heat and moisture simultaneously. In order to improve the food heating efficiency and improve the power of the steam generating device in the prior art, the steam generating rate is improved, meanwhile, the loss rate of heat energy and moisture is also improved, serious waste is caused, the steam generating rate is simply improved, when the steam generating rate is improved to a certain degree, the relation between the food heating rate and the power improved by the steam generating device is changed, and the cost performance of energy consumption and efficiency conversion is reduced.

Similarly, the power of a steam generating device adopted by the large-sized steam box is higher, and the steam box is provided with a large-sized water tank to improve the endurance capacity of the steam box, but the actual heating rate and endurance capacity are even smaller than those of the traditional steaming process.

The embodiment of the utility model provides a through set up the steam circulation drive arrangement who drives steam forced circulation through the food on the food bearing structure in the food steaming utensil, make and should circulate on the food bearing structure once more through the steam that the pneumatic valve or other export in the top run off compared with prior art, on the one hand steam can supplement the heat in the system through circulating after heating food through the heat exchange still self-remaining heat, avoided this part of heat that former self-remaining to discharge to the external world and cause the loss; on the other hand, the food bearing structure is filled with the steam after the steam flows through the food, the flow rate of the steam is reduced, a relatively stable natural flow field is formed in the food bearing structure, and the flow rate of the steam on the surface of the food is an important condition for influencing heat exchange, so that the steam is forced to circulate in the steam through the steam circulation driving device, the flow rate of the steam passing through the food is further forced to be increased, a high-speed steam flow field is maintained, the food heating efficiency is increased, the food quality is improved, not only can the heat energy be recycled, but also the moisture carried by the steam is reserved, and the cruising ability of the steamer is improved.

Example one

Referring to fig. 1, the food steaming tool provided in this embodiment includes:

a steamer body 10;

a food carrying structure 20 located within the steamer body 10;

a steam circulation driving means 40 for driving forced circulation of steam through the food on the food carrying structure 20.

The steaming tool body 10 is a body that is used to carry the food carrying structure 20 and the steam generating device 30 in a broad sense, and may be a common integral body structure that the food carrying structure 20 and the steam generating device 30 are disposed in the same surrounding space, or may be a separate body structure that the food carrying structure 20 and the steam generating device 30 are disposed in mutually independent surrounding spaces, and steam generated by the steam generating device 30 can naturally circulate to the surrounding space where the food carrying structure 20 is located through a communication pipe.

The steam inner loop is forced through steam cycle drive arrangement 40 to this embodiment, and then has forcibly improved the velocity of flow of steam through food, maintains the high-speed steam flow field, has improved food heating efficiency, has promoted the food quality, even has made heat energy cycle recycle, has also kept the moisture that steam carried, has promoted the duration of steaming the utensil.

Example two

a steamer body 10;

a food carrying structure 20 located within the steamer body 10;

a steam generating device 30 for delivering steam into the steamer body 10;

Specifically, the steamer body 10 comprises an integrated body structure having a first enclosure, the integrated body structure comprises a food carrying structure 20 and a steam generating device 30 in the first enclosure; or

The steaming tool body 10 comprises a separated body structure with a second surrounding space, a third surrounding space and a first communicating pipeline communicated with the second surrounding space and the third surrounding space, and the separated body structure further comprises a food bearing structure 20 in the second surrounding space and a steam generating device 30 in the third surrounding space.

Through configuring the body into above-mentioned integral type body structure or disconnect-type body structure, make the utility model discloses the food that can be applicable to multiple structural style in a flexible way evaporates the utensil.

Specifically, the steamer body 10 can be a common steamer, a steam box, a food steamer, etc. according to common classification forms; or single-layer, double-layer or other multi-layer steaming tools can be formed according to the number of layers; can also be divided into single bottom, compound bottom or multilayer bottom according to the type; or other forms of steaming tools which are divided into metal and nonmetal according to the material, such as stainless steel, zinc alloy, aluminum alloy, synthetic material, wood or ceramic crystal, etc.

As shown in fig. 1, the food bearing structure 20 is disposed in the steaming tool body 10 for bearing food, and the bearing surface structure may be a common grid-shaped, transversely spaced, longitudinally spaced or other gap structure which is capable of bearing food and allowing steam to flow; the whole structure of the food bearing structure can be a common plane structure, can also be a cage-shaped structure with a plane surrounded by side walls, and can also be other common structures such as a stepped multi-layer cage-shaped structure, the material of the food bearing structure can be common high polymer materials such as PC plastic, PE plastic, PP plastic, PVC plastic, polyester material, polyurethane material, synthetic fiber and the like, and other materials such as stainless steel, ceramic, bamboo and wood, and it can be understood that the food bearing structure can be used for bearing food, and the bearing structure which enables steam to pass through from any direction and surround food does not deviate from the explanation of the food bearing structure 20 in the embodiment.

In this embodiment, the food bearing structure 20 is located in the steaming tool body 10, and the steaming tool body 10 can limit steam in the space where the food bearing structure 20 is located, and the steam is limited in the controllable closed space, so that the steam can be controlled to circulate in the food bearing structure 20 in order, the more the internal space is closed and stable, the smaller the distortion of control is, and the better the control effect is.

On this basis, a more preferred embodiment is to locate the food carrying structure 20 in the steamer body 10, further defined as the food carrying structure 20 can be sealed in the steamer body 10, it is understood that the sealing is not equivalent to airtight, steam can escape from the sealed gap directly or by steam pressure, or a pressure limiting valve is provided on the steamer body 10 to vent the gas for safety or flexible control of the gas pressure, and the steam escape can be in a suitable range.

Preferably, the steamer body 10 forms a controlled sealed environment. The sealed environment realizes easily, can for example through adding mode realization such as establishing the sealing strip, and controllable sealed environment also can realize through the controllable discharge valve of pressure among the prior art, and its meaning lies in controllable sealed environment and is favorable to further control evaporating atmospheric pressure, velocity of flow and the temperature of the steam of circulation between the food bearing structure 20 in the utensil body 10, reduces the error of control, improves the result of use and the security of evaporating the utensil.

The steam generating device 30 generates steam. Steam generating device 30 is to be understood in a broad sense as a device capable of generating steam. In principle, the device can be a common device for generating steam by heating water, and also can be a device for generating steam by other moisture heating phase change systems; structurally, it may be an integrated device that heats water stored inside to generate steam and then releases the steam into the steaming tool body 10. For example, the steamer body 10 comprises a one-piece body structure having a first enclosure, the one-piece body structure comprising the food carrying structure 20 and the steam generating device 30 within the first enclosure. In other embodiments, the structure for generating steam and releasing the steam into the steaming tool body 10 may also be a separate device in which a plurality of independent components are communicated, water is introduced into the heated component through the component for storing water and is heated to generate steam, and the steam is introduced into the component for storing steam, and is released into the steaming tool body 10 after heat preservation and pressure maintaining; or the water can be heated to a high-pressure overheat state in the closed space, and the steam is released after the water is opened. For example, the steamer body 10 comprises a separate body structure having a second surrounding space, a third surrounding space and a communication pipe communicating the second surrounding space and the third surrounding space, the separate body structure further comprises a food carrying structure 20 in the second surrounding space and a steam generating device 30 in the third surrounding space.

It should be noted that the separate device can heat water outside the steaming tool body 10 to generate steam, and the steam can be introduced into the food bearing structure 20.

It will be appreciated that the steam can be generated and allowed to enter the food carrying structure 20 and heat the food on the food carrying structure 20 without departing from the teachings of the present embodiment to the steam generating device 30.

The steam circulation driving device 40 drives the forced circulation of steam through the food on the food carrying structure 20.

The drive means that a movement of gas is caused in addition to the movement of steam generated by the steam generating means 30, and is applied manually, such as a mechanically driven fan.

The steam circulation driving device 40 provides a driving force for promoting the movement of the steam to the space where the food carrying structure 20 is located, so as to drive the steam in the space where the food carrying structure 20 is located to flow through the food carrying structure 20 from the steam inflow end to the steam outflow end of the food carrying structure 20;

in the embodiment of the present invention, the forced circulation is significantly different from the natural flow. The so-called natural flow is: the steam discharged from the steam generator 30 naturally generates its motion and condensation according to the fluid dynamics and phase change law in a certain fixed environment in the steamer. The steam generated by the steam generating device 30 can naturally flow in the existing steaming tool body 10, but the flow rate of the steam generated by the natural flow can only push the steam to naturally flow depending on the steam generating rate of the steam generating device 30, the steam can flow only by a steam outlet, meanwhile, the power needs to be increased to obtain a larger natural flow speed, and the energy and the moisture of the escaping steam are wasted. Forced circulation means that steam is driven to flow at a certain speed in the food carrying structure 20 by the steam cycle driving means 40. The steam can exchange heat with the surface of the food when passing through the surface of the food, the temperature of the steam and the flow rate of the steam are important factors influencing the heating rate of the food, and a high-speed flow field is easily formed by forced circulation, so that the steam which is beneficial to finishing heat exchange is quickly circulated to a region with high temperature to supplement heat energy, and the flow rate of the steam when passing through the surface of the food is directly promoted, the surface heat exchange coefficient of the steam-food is improved, the heating rate is improved, the steaming can be finished more quickly, the heating intensity of the food is reduced, and the quality of the steamed food is improved; meanwhile, the steam after heat exchange is finished leaves the surface of the food rapidly, condensation is not easy to form on the surface of the food, and the heat distribution is more uniform in the food heating process, so that the steaming quality of the food is also facilitated.

The steam circulation driving device 40 may be one or a combination of several of a common centrifugal fan, axial flow fan or crossflow fan.

Regarding the space that circulates in steaming tool body 10 as the system that is sealed relatively with steam, then steam cycle drive arrangement 40 promotes steam and circulates the food on food bearing structure 20 at the system inner loop, avoids the interior outer convection current of steam to take away heat and moisture, also avoids outside gas to destroy the heat distribution who evaporates tool body 10 inside, has improved the precision of steam temperature and steam flow rate control in the system simultaneously, improves system control stability, reduces the degree of distortion. The energy provided by the steam generating device 30 is enough as long as the energy for heating food and dissipating the energy to the outside is satisfied, and little or no steam can be discharged to the outside, thereby realizing great energy conservation.

The steam circulation driving device 40 is positioned in the steaming tool body 10; or

The steam circulation driving device 40 is located outside the steaming tool body 10 and is communicated with the steaming tool body 10 through a second communicating pipeline so as to transmit a driving force for promoting the movement of the steam through the second communicating pipeline, and drive the steam in the space where the food carrying structure 20 is located to flow through the food carrying structure 20 from the steam inflow end to the steam outflow end of the food carrying structure 20.

Specifically, structurally, the steam circulation driving device 40 is located in communication with the space where the food carrying structure 20 is located and together form a relatively closed space such that the driven steam can flow through the food carrying structure 20. Therefore, the steam circulation driving device 40 may be disposed inside the steaming tool body 10, or may be disposed outside the steaming tool body 10. If steam cycle drive arrangement 40 sets up outside evaporating utensil body 10, steam cycle drive arrangement 40 accessible pipeline with evaporate utensil body 10 and be linked together, make the utility model discloses the design can be transformed into in current common food evaporates the utensil in a flexible way to less upgrading cost obtains great performance benefit.

In summary, a relatively sealed and controllable space is formed in the steaming tool body 10, the steam generated by the steam generating device 30 disposed in the steaming tool body 10 naturally flows into the space where the food carrying structure 20 disposed in the steaming tool body 10 is located, and the steam circulating device 40 drives the steam to forcibly circulate through the food on the food carrying structure 20, so as to sufficiently heat the food without losing heat energy and moisture.

According to the test, the food can achieve the same steaming effect, the food steamer is applied to a steamer-induction cooker, and the steaming time of the embodiment is saved by 20-30% compared with that of the existing steamer-induction cooker; under the condition that the steam cooker-induction cooker is 300W, the water consumption of the embodiment is only 7.83g/min, and compared with the prior art of 17-26g/min, a large amount of water is saved, so that the steaming effect is improved, the energy consumption is saved, and the cruising ability of the steam cooker is improved for a large steam cooker which needs to add water into a water tank frequently, so that the intelligent degree of food steaming is higher.

EXAMPLE III

The present embodiment is improved on the basis of the above-mentioned embodiment, and the first control device 50 for controlling the change rate of the steam in the steaming tool body 10.

Referring to fig. 2, the first control device 50 is connected to the steam generating device 30, and the connection may be a communication connection implemented by wireless communication means such as infrared, bluetooth, radio frequency, etc., or an electrical coupling implemented by wired means such as an electric circuit, an integrated circuit, etc.

Specifically, the first control device 50 may be a circuit including at least one processor, a circuit including at least one single chip, a combination of multiple circuits or chips, or a common circuit including an amplifier, a comparator, a transistor, and a MOS transistor, and implements corresponding functions in a pure hardware manner.

It can be understood that the first control device 50 can be controlled by the control circuit in combination with a button, or by the control circuit in combination with software such as the mobile phone APP. The first control device 50 may also adopt other control schemes including a communication module, a display module, a storage module, etc. in the prior art, as long as the corresponding control function can be realized.

Wherein the steam generation rate is understood to be the rate at which steam generated by the steam generating device 30 by heating water is eventually released into the food carrying structure 20.

It should be noted that, since the heating component, the water storage component and the air storage component may be structurally separated from each other, the rate of steam generation of the separated steam generation device 30 cannot be regarded as the rate of steam generation of the steam generation device 30, but the rate of steam generation of the water storage component under heating of the heating component should be stored in the air storage component, and the rate of steam release of steam into the food bearing structure 20 by the air storage component is finally understood as the steam generation of the steam generation device 30. For a steam generating device 30 without a gas storage component, such as a conventional device that generates steam by directly heating the bottom of a pan and thus heating the water in the pan, the rate of the final steam entering the food carrying structure 20 should also be regarded as the steam generating rate of the steam generating device 30.

In this embodiment, a more preferable technical solution is that the steam generating device 30 adopts an energy storage type. The energy storage type means that the steam generating device 30 generates superheated water/steam by heating water and stores the superheated water/steam in the steam generating device 30, and the rate of steam entering the food bearing structure 20 is controlled by controlling the exhaust valve of the steam generating device 30, which has the advantage that the control of the rate of steam generation can be realized through the control of the gas valve. Since steam is generated by water heating, direct control of the rate of steam generation through control of the heating power requires a larger, wider power range. For food steaming and heating, the actual speed of the food entering the steaming tool body 10 is more valuable to control than the water generation speed.

Therefore, the present embodiment employs the steam generating device 30 of the energy storage type by storing the steam in the steam generating device 30 first. In terms of control, the first control device 50 only detects and controls the air valve of the steam generating device 30 communicated with the steaming tool body 10, so that the accurate detection and control of the steam generating rate can be realized, and the temperature of the steam in the food bearing structure 20 can be further adjusted.

Example four

The present embodiment is modified from the above-described embodiment in that the first control device 50 controls the change rate of the steam by one or a combination of the following conditions:

in a first preset time period, the steam generating device 30 generates an outlet flow-time relationship of steam;

in a second preset time period, the temperature-time relation of the steam in the steaming tool body 10,

In a third preset time period, the steam pressure index-time relation in the steaming tool body 10;

in a fourth preset time period, the relationship between the temperature and the time index of the food in the steaming tool body 10 is set.

Wherein, the first, second, third, fourth of preset time quantum do not refer to the order relation, can be that arbitrary condition independently exists in a time quantum, also can be that arbitrary a plurality of conditions are in a time quantum together, or the combination of a plurality of time quantum, and multiple implementation mode is occasionally specifically realized, does not receive the embodiment of the utility model discloses the restriction. One or a combination of the following conditions should be understood as the corresponding relationship between the control parameters solidified by a program language and built in a computer memory or a processor, the algorithm of the program language adopts the prior art, and the significance of the control of the steam generation rate on solving the technical problem is clarified through the limitation of the control parameters in the embodiment.

In this embodiment, the specific control process may be implemented in various forms.

Specifically, the first control device 50 controls the progress of heating the food by controlling the power of the steam generating device 30. Specifically, the first control device 50 controls the power of the steam generating device 30 according to the food temperature to realize the heating degree of the superheated water in the steam generating device 30, and when the food temperature does not reach a preset index, the steam generating device 30 injects steam into the food steaming tool to further increase the food temperature. When the temperature of the food reaches a preset level but further heating is required, the steam generating device 30 reduces its power and intermittently or continuously injects a suitable amount of steam into the container according to the temperature of the food in a preset manner. Further, the steam generator 30 presets a plurality of modes of power control corresponding to the change of the food temperature, thereby realizing the process of heating the food by the food steamer. A preferred form of control for a food steamer is:

the food steaming tool is further provided with an escape opening, when the inside of the food steaming tool is filled with steam and the preset escape condition of the escape opening is met, the steam is discharged to the outside of the food steaming tool from the escape opening, so that an energy storage type structure is formed between the space where the steaming tool body 10, the steam generating device 30 and the food bearing structure 20 are located and the escape opening, and the steam steaming tool has the significance of avoiding that the temperature in the inside of the food steaming tool is too low and the steaming temperature required by food steaming cannot be reached. Meanwhile, the escape condition is set so that the steam is not excessively discharged, and the less the steam is discharged from the escape port, the more energy is saved for the food steaming tool.

Specifically, energy storage formula structure still is favorable to food to evaporate the utensil and plays to evaporate fast, and when the user starts food to evaporate the utensil and evaporates food, the loss mouth is equivalent to the sealing member, and the high temperature steam of steam generating device 30 release is full of and retrains inside food evaporates the utensil for food on the food bearing structure 20 can get into high temperature fast and evaporate the state, has improved food and has evaporated efficiency.

The escape condition of the escape opening can be the steam temperature and/or the real-time escape flow rate of the steam, and the steam temperature and the escape flow rate can be fixed values or dynamically-changed and adjusted values. The present embodiment feeds back real-time data to the steam generating device 30 and/or the escape opening by detecting the steam temperature and/or the escape flow rate at the escape opening. The steam generating device 30 adjusts the degree of sealing of the escape opening based on the real-time data. The steam generating device 30 adjusts the rate of generation of steam based on the real-time data.

The food steaming tool is also internally provided with a temperature detection point, the temperature detection point corresponds to the point with the lowest theoretical temperature in the steaming tool, can be a temperature detection point or a detection point with the lowest temperature collected from a plurality of temperature detection points, the real-time temperature information in the steaming tool is obtained by obtaining the temperature of the detection point, the temperature information is fed back to the steam generating device 30 and/or the escape opening, and the steam generating device 30 adjusts the sealing degree of the escape opening based on the real-time data. The steam generating device 30 adjusts the rate of generation of steam based on the real-time data.

The preferred control form has the advantages that the control of the steaming process of the food steaming tool can be realized at lower cost, the control mechanism of the steam generating device 30 and the control mechanism of the escape opening are included, and the control of the temperature, the air pressure and the steam flow rate of the steam in the steaming tool is further realized, so that the control of the food steaming process is realized, the escape amount of the steam is reduced while high-quality steamed food is obtained, and the energy is saved and the consumption is reduced.

Another more specific control form is based on the above preferred control form, aiming at realizing more flexible and more accurate energy-saving control of the steaming process, and is based on

The preset outlet flow rate-time relationship of the steam generating device 30 refers to the flow rate control of the steam according to the detected steam flow rate of the steam generating device 30 discharged into the food carrying structure 20 within a certain time.

The detection of the steam flow may be achieved by providing a steam flow sensor 51 on the exhaust valve between the steam generating device 30 and the food carrying structure 20, whereby the steam flow sensor 51 may be of the electromagnetic, differential capacitive, inductive or strain resistive type.

Specifically, referring to fig. 2, the steam flow sensor 51 may be configured to cooperate with the first control device 50, and may also be used as one of the signal sensing modules of the first control device 50.

In this embodiment, the steam flow sensor 51 is used as one of the signal sensing modules of the first control device 50, and the steam flow sensor 51 is connected in communication with the first control device 50, so that the steam flow discharged from the steam generating device 30 into the food carrying structure 20 within a certain time period is used as a reference signal for the first control device 50 to control the steam generating rate.

In an intelligent control scheme, the reference signal may be given a certain coefficient and functional relationship as a variable in a specific algorithm to obtain a control output signal for the steam generation rate, for example, when the steam flow rate of the steam generating device 30 is 1m³When the flow rate of the steam is/h, the flow rate of the steam is used as a characteristic value and is substituted into a specific function S1 to obtainTo obtain 0.5m³The control output signal/h causes the first control means 50 to reduce the opening of the exhaust valve of the steam generating means 30, thereby reducing the steam generating rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S1 when the standard heating mode is selected, and the characteristic value corresponding to function S2 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be displayed only on a display for user awareness, or may be used as an internal feedback mechanism to assist in controlling the regulation of the output signal, such as a user input of 1m³Steam generation rate/h, and the actual steam flow measured by the steam flow sensor 51 is 0.5m³H, the first control device 50 adjusts the opening degree of the exhaust valve of the steam generating device 30 so that the steam generation rate approaches 1m set by the user³/h。

Through the arrangement, the steam generation rate is used as a reference signal for controlling the steam generation rate by the first control device 50, so that the steam generation rate is always in a dynamic adjustment state, the steam generation rate can be adjusted in real time according to the requirement of the food steaming tool on the steam generation rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

The preset steam temperature-time relationship and steam pressure index-time relationship in the steaming tool body 10 refer to adjusting the steam generation rate according to the real-time state and the change state of the detected steam temperature in the specific time, or according to the real-time state of the steam pressure in the specific time and the state of the difference value between the steam pressure index and the preset steam pressure index.

Since temperature and vapor pressure have an equivalent relationship in thermodynamic systems. Therefore, the present embodiment can be based on both the preset steam temperature-time relationship and the steam pressure index-time relationship, or can be based on only the preset steam temperature-time relationship or the steam pressure index-time relationship.

Specifically, when the steam generation rate is adjusted solely according to the preset steam temperature-time relationship, the detection of the steam temperature can be realized by arranging the temperature sensor 52 in the steaming tool body 10. The temperature sensor 52 may be a conventional sheet metal sensor, an electronic temperature sensor, or a thermocouple temperature sensor.

Specifically, the temperature sensor 52 may be configured with the first control device 50, or may serve as one of the signal sensing modules of the first control device 50.

In this embodiment, the temperature sensor 52 serves as one of the signal sensing modules of the first control device 50. The temperature sensor 52 is in communication with the first control means 50 such that the temperature of the steam in the food carrying structure 20 over time acts as a reference signal for the first control means 50 to control the rate of steam generation.

In an intelligent control scheme, the reference signal may be given a certain coefficient and functional relationship as a variable in a specific algorithm to obtain a control output signal for the steam generation rate, for example, when the steam temperature is 100 degrees celsius, the steam temperature is substituted as a characteristic value into a specific function S3 to obtain 0.5m³The control output signal/h causes the first control means 50 to reduce the opening of the exhaust valve of the steam generating means 30, thereby reducing the steam generating rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S3 when the standard heating mode is selected, and the characteristic value corresponding to function S4 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be only displayed on a display for a user to know, or may be used as an internal feedback mechanism to participate in the adjustment of the control output signal, for example, the user inputs a steam temperature of 110 degrees celsius, and the actual steam temperature measured by the temperature sensor 52 is 100 degrees celsius, then the first control device 50 adjusts the opening of the exhaust valve of the steam generating device 30, so that the steam generating rate is a positive value, the air pressure of the steaming tool body 10 continues to rise, so that the steam pressure (the boiling point of water) continues to rise, when the temperature of the steam reaches 110 degrees celsius preset by the user, the first control device 50 controls the steam generating device 30 to stop releasing the steam into the steaming tool body 10, and when the steam completes heat exchange with the food to reduce the temperature, the first control device 50 continues to control the steam generating device 30 to release the steam. Through the arrangement, the steam temperature is used as a reference signal for controlling the steam generation rate by the first control device 50, so that the steam temperature is always in a dynamic adjustment state, the steam generation rate can be adjusted in real time according to the requirement of the food steaming tool on the steam generation rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

When the steam generation rate is adjusted according to the preset steam pressure index-time relationship, the detection of the steam pressure can be realized by arranging the pressure sensor 53 in the steaming tool body 10. The air pressure sensor 53 may be a conventional digital air pressure sensor that utilizes MEMS technology to fabricate a vacuum chamber and a wheatstone bridge on a single crystal silicon wafer.

Specifically, the air pressure sensor 53 may be configured with the first control device 50, and may also serve as one of the signal sensing modules of the first control device 50.

In this embodiment, the air pressure sensor 53 is used as one of the signal sensing modules of the first control device 50, and the air pressure sensor 53 is in communication connection with the first control device 50, so that the air pressure of the steam in the steaming tool body 10 within a certain time is used as a reference signal for the first control device 50 to control the steam generation rate.

In an intelligent control scheme, the reference signal may be given a certain coefficient and functional relationship as a variable in a specific algorithm to obtain a control output signal for the steam generation rate, for example, when the steam pressure is 150kpa, the steam pressure is substituted as a characteristic value into a specific function S5 to obtain 0.5m³The control output signal/h causes the first control means 50 to reduce the opening of the exhaust valve of the steam generating means 30, thereby reducing the steam generating rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S5 when the standard heating mode is selected, and the characteristic value corresponding to function S6 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be only displayed on a display for a user to know, or may be used as an internal feedback mechanism to participate in the adjustment of the control output signal, for example, the user inputs a steam pressure of 150kpa, and the actual steam pressure measured by the pressure sensor is 120kpa, then the first control device 50 adjusts the opening of the exhaust valve of the steam generating device 30, so that the steam generating rate is a positive value, the air pressure of the steaming tool body 10 continues to rise, when the air pressure reaches 150kpa preset by the user, the first control device 50 controls the steam generating device 30 to stop releasing steam into the steaming tool body 10, and when the steam completes heat exchange with food to reduce the air pressure, the first control device 50 continues to control the steam generating device 30 to release steam. Through the setting, steam pressure is as the reference signal of first controlling means 50 control steam rate of taking place for steam pressure is in the state of dynamic adjustment all the time, can evaporate the utensil promptly and adjust steam rate of taking place in real time to steam rate's demand according to food, also can provide abundanter intelligent control scheme according to the demand of user to food heating.

Meanwhile, when the steam generation rate is adjusted according to the preset steam temperature-time relationship and the steam pressure index-time relationship, the temperature sensor 52 and the air pressure sensor 53 can be arranged on the steaming tool body 10 at the same time, and the detected steam temperature information and the detected steam pressure information are respectively used as reference signals to control the steam generation rate. The steam temperature and the steam pressure are always in a dynamic adjustment state, the steam generation rate can be adjusted in real time according to the requirement of the food steaming tool on the steam generation rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating

The food temperature-time relation refers to that the steam generation rate is adjusted according to the real-time state and the change state of the food temperature in a specific time. The detection of the temperature of the food product can be achieved by interposing a temperature sensing probe 54 on the food product. The temperature sensor 52 may be a conventional sheet metal sensor, an electronic temperature sensor 52, or a thermocouple temperature sensor 52, and in the present embodiment, the temperature sensing probe 54 is a thermocouple temperature sensor 52.

Specifically, the temperature sensing probe 54 may be configured with the first control device 50, or may serve as one of the signal sensing modules of the first control device 50.

In this embodiment, the temperature sensing probe 54 is used as one of the signal sensing modules of the first control device 50, and the temperature sensing probe 54 is connected to the first control device 50 in a communication manner, so that the temperature of the food within a certain time period is used as a reference signal for the first control device 50 to control the steam generation rate. In an intelligent control scheme, the reference signal may be given a certain coefficient and functional relationship as a variable in a specific algorithm to obtain a control output signal for the steam generation rate, for example, when the food temperature is 90 degrees celsius, the food temperature is substituted as a characteristic value into a specific function S7 to obtain 0.5m³The control output signal/h causes the first control means 50 to reduce the opening of the exhaust valve of the steam generating means 30, thereby reducing the steam generating rate.

In another intelligent control scheme, the user may further select a particular algorithm in the form of a user selection of a different steaming mode, the characteristic value corresponding to function S7 when the standard heating mode is selected, and the characteristic value corresponding to function S8 when the keep warm heating mode is selected.

In a non-intelligent control scheme, the reference signal may be only displayed on a display for a user to know, or may be used as an internal feedback mechanism to participate in controlling the adjustment of the output signal, for example, the user inputs a steam temperature of 150 degrees celsius, and the actual food temperature measured by the temperature sensing probe is 130 degrees celsius, then the first control device 50 adjusts the opening of the exhaust valve of the steam generating device 30, so that the steam generating rate is a positive value, the air pressure and temperature of the steamer body 10 continue to rise, the steam continues to be forced to circulate under the driving of the steam circulation driving device 40 to further heat the food, and when the food temperature reaches 130 degrees celsius preset by the user, the first control device 50 controls the steam generating device 30 to stop releasing the steam into the steamer body 10. Through the arrangement, the food temperature is used as a reference signal for controlling the steam generation rate by the first control device 50, so that the steam temperature is always in a dynamic adjustment state, the steam generation rate can be adjusted in real time according to the requirement of the food steaming tool on the steam generation rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

In one non-intelligent control scheme, the valve indexing-flow relationship is obtained by pre-measurement. The required steam flow is obtained by controlling the valve indexing.

Based on the above-disclosed control method, the control algorithm for the sealing degree of the steam generating device 30 and the escape opening can be a control algorithm constructed based on food steamers with different power models and actual test structures

EXAMPLE five

Referring to fig. 3, the present embodiment is improved on the basis of the above-mentioned embodiment, and the food steaming tool further comprises a driving control device 60 for controlling the flow rate and/or direction of the steam in the steaming tool body 10.

The driving control device 60 is connected to the steam circulation driving device 40, and the connection may be a communication connection implemented by wireless communication methods such as infrared, bluetooth, and radio frequency, or an electrical coupling implemented by wired methods such as a circuit and an integrated circuit.

Specifically, the driving control device 60 may be a circuit including at least one processor, a circuit including at least one single chip, a combination of multiple circuits or chips, or a common circuit including an amplifier, a comparator, a transistor, and a MOS transistor, and implements corresponding functions in a pure hardware manner. It can be understood that the first control device 50 can be controlled by the control circuit in combination with the button, or by the control circuit in combination with software such as the mobile phone APP, and the first control device 50 can also adopt other control schemes including the communication module, the display module, the storage module, etc. in the prior art, as long as the corresponding control function can be realized.

Specifically, the driving control device 60 may control the flow rate of the steam by the steam generating device 30 and/or the steam circulation driving device 40, and the driving control device 60 may change the direction of the steam by the steam circulation driving device 40.

For example: when the food steaming tool needs to increase the food heating rate, the user operates the driving control device 60 to control the steam generation device 30 to increase the steam generation rate, thereby increasing the flow rate of the steam in the food steaming tool. Meanwhile, the user operates the driving control device 60 to control the steam circulation driving device 40 to increase the rotation speed of the fan, thereby increasing the flow rate of the steam in the food steaming tool. For another example, when the user needs the steam to pass back and forth across the food, the user operates the driving control device 60 to control the steam circulation driving device 40 to switch back and forth in the forward and reverse rotation mode at certain time intervals, so that the steam in the food steamer passes back and forth across the surface of the food.

This embodiment makes the intelligence of food steaming tool evaporate the scheme pluralism more through setting up drive control device 60, and the user can be according to different food when evaporating to the different demands adjustment food of culinary art steam flow rate and steam direction in the utensil for food evaporates the utensil and can adapt to more complicated steaming technology. The efficiency of the heat exchange between the steam and the surface of the food is improved by the forward and reverse direction of the steam through the food, and the quality of the food is improved.

EXAMPLE six

The present embodiment is an improvement over the above-described embodiment,

the drive control means 60 controls the flow rate of the steam generated by the steam generation means 30 through the steam generation means 30; and/or

The driving control device 60 controls the flow rate of the steam in the steaming tool body 10 through the steam circulation driving device 40.

Wherein, the driving control device 60 is connected with the steam circulation driving device 40 and/or the steam generating device 30, and the driving control device 60 controls the steam flow rate and/or the steam direction by controlling the steam circulation driving device 40. The flow rate of the steam is mainly influenced by the steam generating device 30 and the steam circulation driving device 40, the steam generating device 30 influences the natural flow rate of the steam, the steam circulation driving device 40 mainly influences the forced circulation flow rate of the steam, the natural flow rate is much smaller than the forced circulation flow rate, and the food heating efficiency is mainly improved through the forced circulation flow rate in the embodiment.

Specifically, when the steam cycle driving means 40 is a fan, the drive control means 60 controls the flow rate of the steam by adjusting the rotation speed of the fan. When the food steaming tool needs to heat food at a high speed, the driving control device 60 controls the fan to increase the rotating speed, the fan drives steam to circulate at a high speed in the steaming tool body 10, the fan can be driven in a forward direction and also can be driven in a reverse direction, so that the steam direction is changed, and the fan can also change the steam direction by changing the air supply direction of the fan. On one hand, the heat which is still retained by the steam after the steam heats the food through heat exchange can be not dissipated and wasted through high-speed circulation, and the steam generating device 30 can rapidly supplement the heat absorbed by the food; on the other hand, the high-speed circulation improves the flow velocity of steam passing through food, improves the efficiency of heat exchange between the steam and the surface of the food, and improves the quality of the food.

EXAMPLE seven

Referring to fig. 4, the present embodiment is modified from the above-mentioned embodiments, and the food steaming device 10 further comprises a steam distribution device 70 between the steam inflow end 21 and the steam outflow end 22 of the food carrying structure 20.

Wherein the steam distribution means 70 enables a uniform entry of steam into the food carrying structure 20. Because the food is placed on the food bearing structure 20, the steam circulation has the process that the steam enters from one end inside the food bearing structure 20 through the food bearing structure 20 and then is discharged from the other end inside, and the process that the steam circulates from one end outside the food bearing structure 20 to one end entering also has the process that the steam circulates from one end outside the food bearing structure 20, the gas path in the process has uneven flow, and by the aerodynamic principle, the middle of the gas path is fast and the edge is slow in the pipeline, and the gas can generate vortex when flowing through the corner, so that the flow velocity distribution of the flow field is uneven, in addition, the steam generated by the steam generating device 30 is uneven in the tangential direction of the flow velocity in the circulation process, so that the heating speed of the food in the area with high steam flow velocity is fast, and the heating speed of the food in the area with low steam flow velocity is slow, in the steam forced circulation system, the steam flow rate is high, so that the steam is necessary to flow through the food uniformly. To solve this problem, the present embodiment provides the steam distribution device 70 in the food steaming tool, and specifically, the steam distribution device 70 is disposed between the steam inflow end and the steam outflow end of the food carrying structure 20, and the steam distribution device 70 can be the steam distribution device 70 in the prior art.

Preferably, the steam distribution device 70 may be a steam distribution plate, and a plurality of diversion holes 71 with different hole diameter sizes are arranged on the steam distribution plate at intervals. The flow guide holes can be in any form of grids, hole plates and the like which limit the air flow. The vapor distribution plate may be designed according to fluid dynamics principles in order to make the flow rate of the vapor flowing out of the vapor distribution plate respectively uniform. For example, the aperture of the area close to the center can be set to be larger, the apertures of the diversion holes distributed around along the center are sequentially increased in steps, each step can be arranged at equal intervals, and the diversion holes can also be arranged at intervals according to a certain proportion, so that the flow velocity of steam close to the center area is increased through the diversion holes with smaller apertures, and the flow velocity of steam close to the periphery area is reduced through the diversion holes with larger apertures.

Further, the steam distribution plate may be disposed only at the steam inflow end of the food carrying structure 20, only at the steam outflow end of the food carrying structure 20, only at the steam inflow end and the steam outflow end of the food carrying structure 20, or a plurality of steam distribution plates may be disposed between the steam inflow end and the steam outflow end of the food carrying structure 20. The arrangement can improve the distribution state of the steam flow velocity in the food bearing structure 20, so that the steam can uniformly flow through the surface of the food, the food can be uniformly heated, and the quality of the food is improved.

Further, the aim of the steam distribution plate is to enable an even distribution of the steam. Not limited to a flat plate structure. The steam distribution plate may be a plate-like structure or may have other geometric configurations compatible with the food carrying structure 20. According to the specific structure of the steaming tool body 10, the steam distribution device 70 can be disposed at other positions in the steaming tool body 10 for improving the steam flow rate distribution in the steaming tool body 10, and the collection of the steam flow rate by the sensor can be affected due to uneven steam flow rate distribution. Therefore, steam distribution device 70 is also favorable to improving the stability of system control, and when steaming utensil body 10 internal existence through the collection to the steam velocity of flow and then control steam cycle drive arrangement 40 or steam generating device 30, steam distribution device 70 is favorable to improving the precision of control, and then promotes the intelligent control level.

Example eight

The present embodiment is an improvement over the above-described embodiment,

the food steamer 10 further comprises a cooler 81 for cooling the steam circulation driving device 40.

Wherein, cooler 81 can be common water-cooling or air-cooling device, because steam cycle drive arrangement 40 evaporates work in the high temperature high pressure environment in the utensil body 10, must make the motor overheated easily, for solving this problem, need carry out cooling treatment to steam cycle drive arrangement 40's motor through cooler 81. The steam circulation driving device 40 may be completely disposed in the steaming tool body 10, or may be partially disposed outside the steaming tool body 10.

Specifically, when the food steamer is applied to a food steamer, in order to adapt to the structure of the steamer body and facilitate the implementation of the cooler 81, the gas driving part of the steam circulation driving device 40 is disposed inside the steamer body 10, and the motor of the steam circulation driving device 40 is disposed outside the steamer body 10.

The cooler 81 is specifically an air cooling device, and the air cooling device is combined with the motor to be arranged, so that the air cooling device can blow air to the motor, cold air can be introduced from a place with lower temperature, the gas flow rate around the motor is improved, the heat exchange efficiency of the fan and air is improved, and the purpose of cooling the steam circulation driving device 40 is achieved.

Example nine

In the present embodiment, a modification is made on the basis of the above-mentioned embodiments, and a heat-insulating part 82 is provided between the steaming tool body 10 and the external environment.

The heat-retaining portion 82 may be passive heat-insulating or active heat-retaining.

The heat insulation and preservation refers to the treatment by a heat insulation material, a heat insulation structure or a heat insulation process, wherein the heat insulation material can be an organic heat insulation material, such as polyurethane foam, polystyrene board, phenolic foam and the like, or an inorganic heat insulation material, such as aerogel felt, glass wool, rock wool, expanded perlite, micro-nano heat insulation, foamed cement and the like. The heat insulation structure can be a double-layer metal clamp inner heat insulation material or double-layer metal middle vacuumizing, and further structurally prevents heat in the steaming tool body 10 from losing to the external environment. The heat-retaining portion 82 may also be treated by other heat-retaining processes. Through the arrangement, heat exchange between the interior of the steaming tool body 10 and the external environment is reduced, and further heat loss in the air in the steaming tool body 10 is avoided.

Example ten

The present embodiment is an improvement over the above-described embodiment,

the food steaming tool further comprises an air path 90, and the air path 90 is formed by a steaming tool body 10 or a pipeline, an interlayer or an irregular space which is respectively connected with the bottom and the top of the steaming tool body 10 outside the steaming tool body 10.

In theory, steam can be circulated within the steamer body 10 even without a gas path. In the prior art, because the food is heated only by the natural flowing of the steam generated by the steam generating device 30, and the natural flowing strength of the steam is weak, the steaming tool body 10 in the prior art is rarely provided with a gas path specially for steam circulation.

Specifically, the air path 90 is required to be correspondingly arranged according to the specific arrangement of the steaming tool body 10, and is mainly used for guiding the steam flow direction.

The embodiment of the utility model provides an in, gas circuit 90 is used for supplementary steam circulation drive arrangement 40 to make the steam in the food steaming tool can form the steam cycle of forcing orderly, reduces the kinetic energy loss that gaseous vortex was provided in order to avoid steam circulation drive arrangement 40 on the one hand, and on the other hand makes steam can circulate in order through food bearing structure 20, not only makes food heating more even to form the thermodynamic system of relatively stable, the steam temperature of being convenient for and the intelligent control of the steam velocity of flow.

EXAMPLE eleven

The present embodiment is an improvement over the above-described embodiments.

Referring to fig. 5, preferably, the food steaming tool is applied to a food steamer, the steaming tool body 10 is a steaming pot body, a structure including the gas path 90 adopted by the steaming tool body 10 may include an upper cover 91 and a pot body 92, the upper cover 91 and the pot body 92 are movably abutted to surround a space in the pot, a steam generating device 30 and a food bearing structure 20 are arranged in the pot body, and the position relationship, the connection relationship and the structural relationship between the steam generating device 30 and the food bearing structure 20 need to meet the requirement that steam generated by the steam generating device 30 can naturally flow through the food bearing structure 20.

In this embodiment, a common arrangement is adopted, the steam generating device 30 is disposed at the bottom of the pan body 92, the food bearing structure 20 is disposed above the steam generating device 30, the steam generated by the steam generating device 30 passes through the food on the food bearing structure 20 from bottom to top relatively uniformly, and the steam circulation driving device 40 is adopted to force the steam to circulate in the food bearing structure 20 in this embodiment. In this embodiment, a steam distribution device 70 is further disposed in the steaming tool body 10, and specifically, the steam distribution device 70 may be disposed between the steam inflow end 21 and the steam outflow end 22 of the food carrying structure 20, and the steam inflow end 21 and the steam outflow end 22, and may adopt different implementation manners for different structures of the steaming tool body 10.

Specifically, food steaming tool is applied to in the food steamer, and food bearing structure 20 activity sets up in pot body 92, and food steaming tool's upper cover 91 is bilayer structure, forms first intermediate layer gas circuit 911 from the top of upper cover 91 to the bottom of upper cover 91 between the bilayer structure.

Specifically, the pan body of the food steaming tool is also of a double-layer structure. The double-layer structure can be formed by the inner wall of the pan body and the outer wall of the bearing structure. A second interlayer air path 921 from the top of the pot body to the lower part of the pot body is formed between the double-layer structures.

When the upper cover 91 and the pot body 92 are butted, the first interlayer air passage 911 is communicated with the second interlayer air passage 921.

The first interlayer gas circuit 911 is provided with a first gas inlet 9111 at the top of the upper cover 91. The first interlayer gas circuit 911 is provided with a first gas circuit outlet 9112 at the bottom of the upper cover 91.

The second interlayer air passage 921 has a second air passage inlet 9211 at the top of the pot body 92. The second interlayer air passage 921 is provided with a second air passage outlet 9212 between the steam generating device 30 and the food bearing structure 20 at the lower part of the pot body.

The steam cycle driving device 40 is disposed at the first gas path inlet 9111 of the first interlayer gas path 911. When the food steamer works, the upper cover 91 is abutted against the pot body 92, steam released by the steam generating device 30 naturally rises and flows through the food bearing structure 20 above, the steam and food on the food bearing structure 20 perform heat exchange to heat the food, and the steam after heat exchange continues to naturally rise to the first air path inlet 9111 of the first interlayer air path 911.

In this embodiment, the steam circulation driving device 40 at the first air path inlet 9111 is a centrifugal fan, the centrifugal fan attracts the steam below to flow into the first interlayer air path 911 at a high speed from the first air path inlet 9111 of the first interlayer air path 911, the steam flows through the first air path outlet 9112 of the first interlayer air path 911 and the second air path inlet 9211 of the second interlayer air path 921 to flow into the second interlayer air path 921, the steam flows through the second interlayer air path 921 and flows into the second air path outlet 9212 arranged at the lower part of the pot body 92 and located between the steam generating device 30 and the food bearing structure 20, so as to join with the steam released by the steam generating device 30, so that the steam supplemented with the heat energy after heat exchange with the food is completed is mixed to form new steam, the steam flows through the food bearing structure 20 at a high speed under the attraction of the centrifugal fan and then enters the first interlayer air path 911, and a new cycle.

Example twelve

The present embodiment is an improvement over the above-described embodiments.

Referring to fig. 6, preferably, the food steaming tool is applied to a food steaming box, the steaming tool body 10 is a steaming box body, a structure including a gas path 90 adopted by the steaming tool body 10 may include a box door 93 and a box body 94, the box door 93 and the box body 94 are movably abutted and enclosed to form a space in the box, a food bearing structure 20 is arranged in the space in the box, a third interlayer gas path 941 is arranged in the box body 94, a steam generating device 30 is arranged on an outer side wall of the box body 94, the steam generating device 30 is communicated with the third interlayer gas path 941, the food bearing structure 20 and the third interlayer gas path 941 are communicated with a steam inflow end 21 and a steam outflow end 22 of the food bearing structure 20, a steam circulation driving device 40 is arranged at a position of the steam outflow end 22, and the steam circulation driving.

Specifically, the box body 94 of the food steaming box is of a double-layer structure, a third interlayer air path 941 is formed between the double-layer structure, and the third interlayer air path 941 and the space in the box form a relatively controllable and airtight system.

When the food steamer works, the box body 94 is abutted to the box door 93, steam released by the steam generating device 30 flows into the food bearing structure 20 in the box body space through the third interlayer air path 941, the steam and food on the food bearing structure 20 perform heat exchange to heat the food, and the steam after heat exchange continues to naturally rise to the air path inlet of the third interlayer air path 941.

In this embodiment, the steam circulation driving device 40 of the steam outflow end 22 is a cross-flow fan, the cross-flow fan attracts the steam below to flow into the third interlayer air channel 941 from the third air channel inlet 9411 of the third interlayer air channel 941 at a high speed, so as to join the steam released by the steam generating device 30, so that the steam after heat exchange with food is supplemented with heat energy and mixed to form new steam, the steam flows into the space where the food bearing structure 20 is located at a high speed through the third air channel outlet 9412 of the third interlayer air channel 941 under the attraction of the centrifugal fan, and then enters the third interlayer air channel 941 through the third air channel inlet 9411 of the third interlayer air channel 941, and a new cycle is started.

EXAMPLE thirteen

The present embodiment is modified from the above-described embodiments in that the steam generating device 30 includes an energy storage steam generator.

The low-power slow preheating means that the heater slowly heats water to an overheating state through the low-power heater in advance and maintains the water at a specific temperature before the food steaming tool is started but food heating work is not carried out. The significance is that when the food steaming tool 10 needs to heat the food, the steam generating device 30 can release high-temperature steam for the first time. Because the embodiment of the utility model provides a through the food on the steam forced circulation process food bearing structure 20 for food evaporates the inside high temperature high pressure state that remains all the time of utensil, and the heater only needs can satisfy food through the low-power heating and evaporates subsequent steam demand of utensil, makes the food of this embodiment evaporate the utensil and only needs the low-power heater just can realize having heated fast of food and has played to evaporate, and only can maintain food through the low-power heater and evaporate subsequent steam demand of utensil. Among the prior art, electric steamer or electric steam ager all heat up the water through high-power heater and evaporate in time, because current electric steamer or electric steam ager steam just releases to the external world without cyclic utilization, make current electric steamer and electric steam ager need the continuous heating work of powerful heater in order to maintain sufficient steam generating rate, compare prior art, this embodiment is in the realization fast to evaporate with high-efficient food heating's the condition under, powerful heater has been saved, the energy consumption has been reduced, make intelligent food steaming utensil can be applied to the house in a flexible way, office building, outdoor steaming etc. and have strict place to the energy consumption requirement.

Example fourteen

The present embodiment is improved on the basis of the above embodiments, and the food bearing structure 20 is fixedly or movably arranged in the steaming tool body 10.

Specifically, the food bearing structure 20 may be fixed in the steaming tool body 10, or may be movably disposed in the steaming tool body 10. The fixed arrangement is understood to be that the food bearing structure 20 and the steaming tool body 10 are connected to form an integrated structure, and when the food bearing structure 20 has an air path which comprises a double-layer structure formed by the inner wall of the steaming tool body 10 and the outer wall of the food bearing structure 20 together, the integrated structure facilitates the integral sealing of the air path. The movable arrangement can be understood as simple placement, and can also be understood as movable connection through fastening, magnet adsorption and other modes, which is beneficial to flexibly detaching the food bearing structure 20, is convenient for taking out or putting in food, and is also convenient for a user to clean the food bearing structure 20 and the inside of the steaming tool body 10.

To sum up, the embodiment of the utility model provides a food evaporates utensil can make the steam cycle of food of flowing through the food surface, avoids heat and moisture to run off to evaporating outside the utensil to temperature and velocity of flow when maintaining and controlling steam flow through food, and then improve food heating efficiency, promote the food quality, reduce the consumption, energy-concerving and environment-protective.

The embodiment of the utility model provides a evaporate utensil body 10 through the setting, set up food bearing structure 20 and steam generation device 30 on evaporating utensil body 10 for the steam that steam generation device 30 produced can flow through the food on the food bearing structure 20 naturally, thereby heats food. Compared with the prior art in which steam which is lost through an air valve or other outlets at the top can be circulated on the food bearing structure 20 again, the steam heating the food through heat exchange can supplement heat energy in the system through circulation, so that the loss caused by discharging the heat energy retained by the steam to the outside is avoided; on the other hand, the food bearing structure 20 is filled with the steam after the steam flows through the food, the flow rate of the steam is reduced, a relatively stable natural flow field is formed in the food bearing structure 20, and the flow rate of the steam passing over the surface of the food is an important condition for affecting the heat exchange, the internal circulation of the steam is forced by the steam circulation driving means 40, thereby forcibly improving the flow velocity of the steam passing through the food, maintaining a high-speed steam flow field, improving the food heating efficiency, improving the food quality, not only recycling the heat energy, but also retaining the moisture carried by the steam, improving the cruising ability of the steamer, the electric food steaming tool can be flexibly configured in a non-professional cooking scene, the commercial application is expanded, the use efficiency of the electric food steaming tool in a professional cooking scene can be improved, a relatively stable and controllable system is formed in the food steaming tool, and the steaming cooking process has a standard control basis.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the embodiments of the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the embodiments of the present invention should be included in the scope of the embodiments of the present invention.

Claims

1. A food steamer, characterized in that it comprises:

a steaming tool body;

a food carrying structure located within the steaming appliance body;

the steam circulation driving device drives the steam in the steaming tool body to forcibly circulate through the food on the food bearing structure;

a steam generating device for delivering steam into the steaming tool body;

a first control device for controlling the change rate of the steam in the steaming tool body;

and the driving control device is used for driving and controlling the flow rate and/or the direction of the steam in the steaming tool body.

2. The food steamer of claim 1, wherein the drive control means controls the flow rate of the steam generated by the steam generation means through the steam generation means; and/or

3. The food steamer of claim 2 wherein the steam generating means comprises an energy storage steamer.

4. The food steamer of claim 1 wherein the food steamer further comprises: and the cooler is used for cooling the steam circulation driving device.

5. The food steamer of claim 1, wherein a thermal insulation portion is disposed between the steamer body and the external environment.

6. The food steamer of claim 1 wherein a steam distribution means is provided between the steam inflow end and the steam outflow end of the food carrying structure for directing steam.

7. The food steamer of claim 1 wherein the steamer body comprises a unitary body structure having a first enclosure, the unitary body structure comprising the food-carrying structure and the steam generating device within the first enclosure; or

8. The food steamer of claim 7 wherein the steam cycle drive provides a driving force to the space in which the food carrying structure is located to drive steam in the space in which the food carrying structure is located to flow through the food carrying structure from the steam inflow end to the steam outflow end of the food carrying structure.

9. The food steamer of claim 8 wherein the steam cycle drive is located within the steamer body; or