CN210018930U

CN210018930U - Food steaming box

Info

Publication number: CN210018930U
Application number: CN201920066740.3U
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: 2020-02-07
Anticipated expiration: 2029-01-15

Abstract

The utility model is suitable for a cooking utensil technical field provides a food steam ager, food steam ager includes: the box door and the box body surround to form a box inner space; a food carrying structure located in the interior space of the bin; a steam circulation driving device for driving the forced circulation of steam 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 steam ager 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 box

Technical Field

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

Background

Steaming is a common cooking mode in the existing cooking modes. Common food steamers include food steamers, steam cookers, steam boxes, and the like. Traditional steam ager is through heating boiling water to in leading-in steam box, make steam run through the food steam box, thereby the inside food of heating steam box, the rate of heating of food is faster, and the quality of food is better. 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 steam box is directly discharged to the outside of the steam box, so that heat and moisture are largely lost. Although the existing electric steam box is more intelligent and convenient to control, the food heating speed and the quality of steamed food are poorer than those of the traditional steam box. In order to overcome the problem, the conventional method adopts a high-power steam generating device, so that the loss of heat and water is aggravated while the heating speed is increased, the cost performance is extremely low, serious waste is caused, and the application of the electric steam box in families and commercial environments is greatly limited.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a food steam ager aims at solving the direct discharge food steam ager behind the steam flow through food of current food steam ager to cause heat and moisture loss, and then reduce steam ager heating efficiency's problem.

The embodiment of the utility model provides a realize like this, a food steam ager, food steam ager includes:

a steam box body;

a food carrying structure located within the steam box body;

and the steam circulation driving device drives the steam in the steam box 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 steam box body.

Preferably, the food steamer further comprises:

a first control device for controlling the state of the steam in the steam box body.

Preferably, the first control means controls the condition 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 steam box body is determined;

in a third preset time period, the steam pressure-time relation in the steam box body;

and in a fourth preset time period, the food temperature in the steam box body is in an index relation with the time.

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 steam box 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 steam box 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 steam box body and the external environment.

Preferably, the steam box body comprises a one-piece body structure having a first enclosed space, the one-piece body structure comprising the food carrying structure and the steam generating device within the first enclosed space; or

The steam box 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 cycle driving device is positioned in the steam box body; or

The steam circulation driving device is positioned outside the steam box body and is communicated with the steam box 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 the steam ager 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 box according to an embodiment of the present invention;

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

fig. 3 is a schematic view of a connection structure of a drive control device in 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 existing food steam box, such as a common steam box used in a family, generates steam from a steam generating device at the bottom of the steam box, naturally flows through food on a food bearing structure above, runs off to the outside of the steam box through an air valve or other outlets, and simultaneously takes away heat and moisture. 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 steam ager, 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 through heat exchange heating food after the heat still remain can supplement the heat in the system through the circulation, avoided this part of heat that originally self remains to arrange 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 steam box is improved.

Example one

Referring to fig. 1, the present embodiment provides a food steaming box including:

the steam box comprises a steam box body 10, wherein the steam box body 10 comprises a box door 11 and a box body 12 which surround and form a box inner space 13;

a food carrying structure 20 located within the tank;

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

In this embodiment, the steam box body 10 includes a box body 12 and a box door 11 movably connected with the box body 12; the box door 11 and the box body 12 are abutted to form a box inner space 13 in an enclosing mode, the box body 12 is a box body 12 with a first channel, and the first channel is communicated with the box inner space 13 through a communication structure.

In this embodiment, the box body comprises a box body inner wall and a box body outer wall, and the first channel is formed between the box body inner wall and the box body outer wall to form the box body 12 with the first channel.

In this embodiment, the communication structure may be a through hole or an opening or a nozzle or a through pipe. For example, in the present embodiment, two communication structures, a first communication structure and a second communication structure, are provided. The first communicating structure is positioned at the upper part of the box body. The second communicating structure is positioned at the lower part of the box body, the first communicating structure is arranged at the upper part of the inner wall of the box body, and the second communicating structure is arranged at the lower part of the inner wall of the box body. The first communication structure in this embodiment is a through hole or a nozzle communicating with the in-tank space 13. The second communication structure in this embodiment is a through hole or a spout communicating with the in-tank space 13. In this embodiment, a through hole is formed in the upper part of the inner wall of the box body as a first communication structure; a through hole can be arranged on the top of the inner wall of the box body to be used as a first communication structure. In the embodiment, the lower part of the inner wall of the box body is provided with an opening as a second communicating structure; the lower side wall of the inner wall of the box body can also be provided with a through hole as a second communicating structure. In other embodiments, the through holes, openings, or nozzles or through pipes may be disposed at any position of the inner wall of the box body, and the number of the openings, the through holes, the nozzles or the through pipes is not limited by this embodiment.

In this embodiment, the vertical distances between the outer wall of the box body and the inner wall of the box body corresponding to the first channel are the same. In other embodiments, the shape of the first channel is not limited by this embodiment.

The steam circulation driving device 40 is installed on the top of the box body 12 and opposite to the communication structure in the embodiment. The steam in the first passage can thus flow into the in-box space 13 by the steam circulation driving means 40. In other embodiments, the steam circulation driving device 40 may be installed at other positions inside the steam box body 10 to drive the steam inside the steam box body 10 to forcibly circulate through the food on the food carrying structure 20 through the steam box air path formed by the first channel.

In this embodiment, the steam circulation driving means 40 is installed at the top of the cabinet at a position opposite to the communicating structure provided on the inner wall of the cabinet. In this way, when the steam circulation driving device 40 drives steam, the efficiency of the steam on the upper portion of the space 13 in the box flowing into the first channel can be better promoted, so that the circulation efficiency of the steam in the space 13 in the box can be effectively improved, and the steam circulation efficiency of the food circulating through the food bearing structure 20 can be effectively improved.

In this embodiment, the second communicating structure is located at the lower portion of the inner wall of the box body, and the steam located in the first channel is beneficial to the steam in the first channel to flow into the space 13 in the box body in an accelerated manner under the effect of the steam circulation driving device 40 driving the steam, so that the steam circulation efficiency of the food circulating through the food bearing structure 20 can be effectively improved.

The steam passes over the surface of the food in heat exchange relationship with the surface of the food, and the temperature of the steam and the flow rate of the steam are important factors affecting the heating rate of the food. In the embodiment, a high-speed flow field is easily formed through forced circulation, so that the rapid circulation of steam for completing heat exchange to a high-temperature area for supplementing heat energy is facilitated, the flow velocity of the steam flowing through the surface of food is directly promoted, the surface heat exchange coefficient of the steam-food is improved, the heating rate is improved, the steaming can be completed 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.

Example two

a food carrying structure 20 located within the tank;

a steam generating device 30 for supplying steam into the steamer body 10.

Wherein, chamber door 11 is used for cooperating box 12, with the box surrounds formation incasement space 13, and incasement space 13 mainly used sets up the food bearing structure 20 who holds food to and the restraint is used for steaming the steam of cooked food, and steam is in high temperature high pressure state usually when steaming cooked food, therefore chamber door 11 and box 12's cooperation can adopt among the prior art to satisfy the butt joint mode of 13 high temperature high pressure states in the incasement space, and traditional limit structure for example offsets, or forms such as buckle butt joint cooperation seal groove. It should be understood that the core of the present invention is to recycle the steam by the steam circulation driving device 40, and the door 11 can be implemented in a form that is adaptive according to a specific preferred embodiment.

The box 12 is a body for carrying the food carrying structure 20 and the steam generating device 30 in a broad sense, and may be a common integrated food steam box structure in which the food carrying structure 20 and the steam generating device 30 are disposed in the same surrounding space, or may be a separate food steam box structure in which the food carrying structure 20 and the steam generating device 30 are disposed in separate surrounding spaces, and steam generated by the steam generating device 30 can naturally flow to the surrounding space where the food carrying structure 20 is located through a communication pipe.

Specifically, the steam box body 10 comprises an integral body structure having a first enclosed space, the integral body structure comprising the food carrying structure 20 and the steam generating device within the first enclosed space; or

The steam box body 10 comprises a separated body structure of a first communicating pipeline with a second surrounding space, a third surrounding space and a communicated second surrounding space and 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 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 can be applicable to multiple structural style's food steam ager in a flexible way.

Specifically, the case 12 may be divided into a single bottom, a multiple bottom, or a multiple bottom by type according to a common classification form; or other types of metal, nonmetal such as stainless steel, zinc alloy, aluminum alloy, synthetic metal, wood or ceramic crystal box 12.

As shown in fig. 1, the food carrying structure 20 is disposed in the box 12, the food carrying structure 20 is used for carrying food, and the carrying structure may be a common grid-shaped, transversely spaced, longitudinally spaced or other geometrically spaced gap structure capable of carrying food and allowing steam to flow through; 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 carrying structure 20 is located in the box body 12, and the box body 12 can limit steam in the space where the food carrying structure 20 is located, and the steam is limited in the controllable closed space, which is beneficial to controlling the steam to circulate in the food carrying structure 20 in order, and the more the steam is in the closed and stable internal space, the smaller the distortion of the control is, and the better the control effect is.

On this basis, a more preferred embodiment is to locate the food-carrying structure 20 within the cabinet 12, further defined as the food-carrying structure 20 being sealable within the food steamer, it being understood that the seal herein is not equivalent to being airtight, that steam can escape from the sealed gap either directly or by steam pressure, or that for safety or flexible control of the pressure, an escape opening is provided in the food steamer to vent the gas, and that the steam escape can be in a manner that limits the steam pressure to a suitable range.

Preferably, the housing 12 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 overflow valve of pressure among the prior art, and its meaning lies in controllable sealed environment and is favorable to further controlling atmospheric pressure, velocity of flow and the temperature of the steam of circulation between the food bearing structure 20 in box 12, reduces the error of control, improves the result of use and the security of steam ager.

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 steam box body 10. For example, the steam box body 10 includes a one-piece body structure having a first enclosure, the one-piece body structure including the food carrying structure 20 and the steam generating device within the first enclosure. In other embodiments, the structure for generating steam and releasing the steam into the steam box 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 steam box 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 steam box body 10 includes 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 includes a food bearing structure 20 in the second surrounding space and a steam generating device in the third surrounding space.

It should be noted that the separate device may heat water outside the housing 12 to generate steam that can be introduced into the food-carrying 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, and is applied manually, such as by 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 motion and condensation of the steam exhausted from the steam generator naturally occur according to the fluid dynamics and the phase change law in a certain fixed environment in the steam box. The steam generated by the steam generating device 30 can naturally flow in the existing box body 12, 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, 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 of steam circulation in box 12 as the relatively sealed system, then steam circulation drive arrangement 40 promotes steam and the food on the food bearing structure 20 of system inner loop process, avoids the interior external convection of steam to take away heat and moisture, also avoids the inside heat distribution of box 12 of outside gas destruction, 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 is enough as long as the energy for heating food and dissipating the energy to the outside is met, and little or even no steam is discharged to the outside, thereby realizing great energy conservation.

Specifically, the steam cycle driving device 40 is positioned in the steam box body; or the steam circulation driving device 40 is located outside the steam box body and is communicated with the steam box body through a second communicating pipeline so as to transmit 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. Consequently, steam cycle drive arrangement 40 can set up in the food steam ager, also can set up outside the food steam ager to be linked together through pipeline and food steam ager, make the utility model discloses the design can be transformed into in current common food steam ager in a flexible way, obtains great performance benefit with less upgrading cost.

In summary, a relatively sealed and controllable space is formed in the food steaming box, the steam generated by the steam generating device 30 disposed in the food steaming box naturally flows into the space where the food carrying structure 20 disposed in the food steaming box 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 steaming box of the embodiment is applied to a steaming box-induction cooker, and the steaming time of the embodiment is saved by 20-30% compared with that of the existing steaming box-induction cooker; under the condition that the steam box 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 box is improved for a large steam box which needs to add water into a water box frequently, so that the intelligent degree of food steaming is higher.

EXAMPLE III

In this embodiment, an improvement is made on the basis of the above embodiment, the food steaming box further comprises an air path 50, and the air path 50 is formed by the food steaming box or a pipeline, an interlayer or an irregular space outside the food steaming box and respectively connected to the bottom and/or the top of the food steaming box.

In theory, steam can also be circulated within the food steamer even without an air 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 food steaming box in the prior art is rarely provided with a gas path for steam circulation.

Specifically, the air path 50 is required to be correspondingly arranged according to the specific arrangement of the food steamer, and is mainly used for guiding the steam flow direction.

The embodiment of the utility model provides an in, gas circuit 50 is used for supplementary steam circulation drive arrangement 40 to make the steam in the food steam ager 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 relatively stable thermodynamic system, the intelligent control of the steam temperature and the steam flow rate of being convenient for.

Example four

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

The box door 11 and the box body 12 are movably abutted and enclosed to form a box inner space 13, the box inner space 13 is provided with a food bearing structure 20, an interlayer air passage 51 is arranged in the box body 12, the outer side wall of the box body 12 is provided with a steam generating device 30, the steam generating device 30 is communicated with the interlayer air passage 51, the food bearing structure 20 and the box body 12 are communicated with a steam inflow end and a steam outflow end of the food bearing structure 20, a steam circulation driving device 40 is arranged at the position of the steam outflow end, and the steam circulation driving device 40 is a cross-flow fan.

Specifically, the box body 12 of the food steaming box is of a double-layer structure, an interlayer air path 51 is formed between the double-layer structure, and the interlayer air path 51 and the space 13 in the box form a relatively controllable and closed system.

When the food steamer works, the box body 12 is abutted with the box door 11, steam released by the steam generating device 30 flows into the food bearing structure 20 in the space 13 of the box body 12 through the interlayer air path 51, the steam and food on the food bearing structure 20 perform heat exchange to heat the food, and the steam which completes the heat exchange continuously and naturally rises to the air path inlet 52 of the interlayer air path 51.

In this embodiment, the steam circulation driving device 40 at the steam outlet end is a cross flow fan, the cross flow fan attracts the steam below to flow into the interlayer air passage 51 of the box body 12 at a high speed from the air passage inlet 52 of the interlayer air passage 51, so as to join with the steam released by the steam generating device 30, so that the steam after heat exchange with the 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 air passage outlet 53 of the box body 12 of the interlayer air passage 51 under the attraction of the centrifugal fan, and then enters the interlayer air passage 51 of the box body 12 through the air passage inlet of the box body 12 of the interlayer air passage 51 of the box body 12, and a new.

EXAMPLE five

Referring to fig. 2, the present embodiment is modified from the above-described embodiment in that a first control device 70 for controlling a steam generation rate of the steam generation device is provided on the food steaming box.

The first control device 70 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, and radio frequency, or an electrical coupling implemented by wired means such as an electric circuit and an integrated circuit.

Specifically, the first control device 70 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 70 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 70 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, the rate of the water storage component generating steam under the heating of the heating component cannot be regarded as the rate of the steam generation device 30, but the steam generated by the water storage component should be stored in the air storage component, and the rate of the steam released by the air storage component into the food bearing structure 20 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 the tank and thus heating the water in the tank, the rate at which the final steam enters the food carrying structure 20 should also be considered as the steam generation 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 arrangement. 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 entering the food steaming box 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 control, the first control device 70 only detects and controls the air valve of the steam generating device 30 communicated with the food steaming box, 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 six

The present embodiment is improved on the basis of the above-described embodiment in that the first control device 70 controls the condition 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 steam;

in a second preset time period, the steam temperature-time relation in the steam box body 10,

In a third preset time period, the steam pressure index-time relationship in the steam box body 10;

in a fourth preset time period, the food temperature in the steam box body 10 is related to the time index.

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.

Specifically, the first control means 70 controls the progress of the heating of the food by controlling the power of the steam generating means 30. Specifically, the first control device 70 controls the power of the steam generating device 30 according to the temperature of the food to realize the heating degree of the superheated water in the steam generating device 30, and when the temperature of the food does not reach a preset index, the steam generating device 30 injects steam into the food steamer to further increase the temperature of the food. 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 generating device 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.

One preferred form of control is:

the food steam box is further provided with an escape opening, when the inside of the food steam box is filled with steam and the preset escape condition of the escape opening is met, the steam is discharged to the outside of the steam box from the escape opening, so that an energy storage type structure is formed between the space where the box body 12, the steam generating device and the food bearing structure 20 are located and the escape opening, and the steam box has the significance of avoiding that the temperature inside the steam box is too low and cannot reach the steaming temperature required by food steaming. Meanwhile, the escape condition is set so that the steam cannot be excessively discharged outside, and the less the steam is discharged from the escape port, the more energy is saved in the food steaming box.

Specifically, energy storage formula structure still is favorable to the food steam ager to rise fast and evaporates, and when the user started the food steam ager and steams food, the loss export is equivalent to the sealing member, and the high temperature steam of steam generating device release is full of and retrains inside the food steam ager for food on the food bearing structure 20 can get into the high temperature fast and steams the state, has improved food and has steamed 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 and/or the escape opening by detecting the steam temperature and/or the escape flow rate at the escape opening. The steam generating device adjusts the degree of sealing of the escape opening based on the real-time data. The steam generating device adjusts a rate of generation of steam based on the real-time data.

The food steam box is also internally provided with a temperature detection point, the temperature detection point corresponds to a point with the lowest theoretical temperature in the steam box, 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 steam box is obtained by obtaining the temperature of the detection point, the temperature information is fed back to the steam generation device and/or the escape opening, and the steam generation device adjusts the sealing degree of the escape opening based on the real-time data. The steam generating device adjusts a 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 box can be realized at lower cost, the control mechanism of the steam generating device and the control mechanism of the escape port are included, and the control of the temperature, the air pressure and the steam flow rate of steam in the steaming box is further realized, so that the control of the steaming process of food 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 to realize more flexible and more accurate energy-saving control of the steaming process, and is based on:

The preset outlet steam flow-time relationship of the steam generating device 30 refers to the control of the steam generating rate according to the detected flow rate of the steam discharged from the steam generating device 30 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 on the exhaust valve between the steam generating device 30 and the food carrying structure 20, which may be of the electromagnetic, differential capacitive, inductive or strain resistive type.

Specifically, the steam flow sensor may be configured to cooperate with the first control device 70, and may also be used as one of the signal sensing modules of the first control device 70.

In this embodiment, a steam flow sensor is used as one of the signal sensing modules of the first control device 70, and the steam flow sensor is connected in communication with the first control device 70, 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 70 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 taken as a characteristic value and is substituted into a specific function S1 to obtain 0.5m³The control output signal/h causes the first control means 70 to reduce the exhaust valve opening of the steam generating means 30, thereby reducing the steam generation 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 1m³A steam generation rate of/h, and an actual steam flow of 0.5m measured by a steam flow sensor³H, the first control means 70 adjusts the opening degree of the exhaust valve of the steam generating means 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 70, 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 steam box 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 relation and steam pressure index-time relation in the food steam box refer to the adjustment of the steam generation rate according to the detected real-time state and change state of the steam temperature in a 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 a temperature sensor in the food steam box. The temperature sensor may be a common sheet metal sensor, an electronic temperature sensor, or a thermocouple temperature sensor.

Specifically, the temperature sensor may be configured to cooperate with the first control device 70, and may also be used as one of the signal sensing modules of the first control device 70.

In this embodiment, a temperature sensor is used as one of the signal sensing modules of the first control device 70. The temperature sensor is in communication with the first control means 70 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 70 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 70 to reduce the exhaust valve opening of the steam generating means 30, thereby reducing the steam generation 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 controlling the adjustment of the output signal, for example, when the user inputs a steam temperature of 110 degrees celsius, and an actual steam temperature measured by the temperature sensor is 100 degrees celsius, the first control device 70 adjusts an opening of an exhaust valve of the steam generating device 30, so that a steam generating rate is a positive value, an air pressure of the food steaming box continues to rise, so that a steam pressure (a boiling point of water) continues to rise, and when the temperature of the steam reaches 110 degrees celsius preset by the user, the first control device 70 controls the steam generating device 30 to stop releasing the steam into the food steaming box, and when the steam completes heat exchange with the food to reduce the temperature, the first control device 70 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 70, 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 steam box 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 relation, the detection of the steam pressure can be realized by arranging a pressure sensor in the food steam box. The air pressure sensor can be a common digital air pressure sensor which processes a vacuum cavity and a Wheatstone bridge on a monocrystalline silicon sheet by using MEMS technology.

Specifically, the air pressure sensor may be configured to cooperate with the first control device 70, and may also be used as one of the signal sensing modules of the first control device 70.

In this embodiment, the air pressure sensor is used as one of the signal sensing modules of the first control device 70, and the air pressure sensor is in communication connection with the first control device 70, so that the air pressure of the steam in the food steaming box within a certain time period is used as a reference signal for the first control device 70 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 70 to reduce the exhaust valve opening of the steam generating means 30, thereby reducing the steam generation 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 controlling the adjustment of the 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 70 adjusts the opening of the exhaust valve of the steam generating device 30, so that the steam generating rate is a positive value, the steam pressure of the food steaming box continues to rise, when the steam pressure reaches 150kpa preset by the user, the first control device 70 controls the steam generating device 30 to stop releasing steam into the food steaming box, and when the steam completes heat exchange with food to reduce the steam pressure, the first control device 70 continues to control the steam generating device 30 to release steam. Through the above arrangement, the steam pressure is used as a reference signal for controlling the steam generation rate by the first control device 70, so that the steam pressure is always in a dynamically adjusted state, namely, the steam generation rate can be adjusted in real time according to the requirement of the food steam box on the steam generation rate, and a richer intelligent control scheme can be provided according to the requirement of a user on food heating.

Meanwhile, when the steam generation rate is adjusted according to the preset steam temperature-time relation and the steam pressure index-time relation, a temperature sensor and a pressure sensor can be arranged in the food steam box 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 steam box 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 can be realized by interposing a temperature sensing probe on the food. The temperature sensor may be a common metal sheet sensor, an electronic temperature sensor, or a thermocouple temperature sensor, and in this embodiment, the temperature sensing probe is a thermocouple temperature sensor.

Specifically, the temperature sensing probe may be configured with the first control device 70, and may also be used as one of the signal sensing modules of the first control device 70.

In this embodiment, the temperature sensing probe is used as one of the signal sensing modules of the first control device 70, and the temperature sensing probe is in communication connection with the first control device 70, so that the temperature of the food within a certain time period is used as a reference signal for the first control device 70 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 50 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 70 to reduce the exhaust valve opening of the steam generating means 30, thereby reducing the steam generation 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 70 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 food steamer continues to rise, the steam continues to be forced to circulate to further heat the food under the driving of the steam circulation driving device 40, and when the food temperature reaches 130 degrees celsius preset by the user, the first control device 70 controls the steam generating device 30 to stop releasing steam into the food steamer. Through the arrangement, the food temperature is used as a reference signal for controlling the steam generation rate by the first control device 70, 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 steam box 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 control mode disclosed above, the control algorithm for the sealing degree of the steam generating device and the escape opening can be a control algorithm constructed based on food steamers with different power models and actual test structures

EXAMPLE seven

Referring to fig. 3, the present embodiment is modified from the above-described embodiment in that the food steaming box further comprises a driving control device 80 for controlling the flow rate and/or direction of steam in the food steaming box.

The driving control device 80 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 80 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 driving control device 80 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 driving control device 80 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 80 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 80 may change the direction of the steam by the steam circulation driving device 40.

For example: when the food steamer needs to increase the food heating rate, the user operates the driving control device 80 to control the steam generation device 30 to increase the steam generation rate, so as to increase the flow rate of the steam in the food steamer. Meanwhile, the user operates the driving control device 80 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 box. For another example, when the user needs the steam to pass back and forth across the food, the user operates the drive control device 80 to control the steam circulation drive device 40 to switch back and forth between the forward and reverse rotation modes at certain time intervals so that the steam inside the food steaming box passes back and forth across the surface of the food.

This embodiment makes the intelligence of food steam ager evaporate the scheme more pluralism through setting up drive control device 80, and the user can adjust the steam velocity and the steam direction in the food steam ager to the different demands of culinary art when evaporating according to different food for the food steam ager can adapt to more complicated process of evaporating. 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 eight

The present embodiment is modified from the above-described embodiments in that the drive control means 80 controls the flow rate of the steam by the steam generating means 30 and/or the steam cycle drive means 40.

Wherein, the driving control device 80 is connected with the steam circulation driving device 40 and/or the steam generating device 30, and the driving control device 80 controls the flow rate and/or the direction of the steam 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 device 40 is a fan, the drive control device 80 controls the flow rate of the steam by adjusting the rotation speed of the fan. When the food steam box needs to heat food at a high speed, the driving control device 80 controls the fan to increase the rotating speed, the fan drives steam to circulate at a high speed in the food steam box, the fan can be driven in a forward direction and can also be driven in a reverse direction, the steam direction is further changed, and the fan can also change the steam direction by changing the air supply direction of the fan. On one hand, the heat still retained by the steam after the food is heated by the steam through heat exchange can be not dissipated and wasted through high-speed circulation, and the steam generating device 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 nine

This embodiment is modified from the above-described embodiment in that the food steaming cabinet further comprises a steam distribution device 60 between the steam inflow end and the steam outflow end of the food carrying structure 20.

Wherein the steam distribution means 60 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 inevitable existence of 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 that enters also has the inevitable existence, the gas path of the process has uneven flow, 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 is not evenly distributed, the steam is unevenly distributed 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, 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 60 in the food steaming box, specifically, the steam distribution device 60 is disposed between the steam inflow end and the steam outflow end of the food carrying structure 20, and the steam distribution device 60 can be the steam distribution device 60 in the prior art.

Preferably, the steam distribution device 60 may be a steam distribution plate, and a plurality of diversion holes 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 object of the vapor distribution plate is to enable uniform distribution of vapor, and is 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 setting of food steam ager, steam distribution device 60 can also set up other positions in the food steam ager and be used for improving the steam velocity distribution situation in the food steam ager, still can influence the collection of sensor to the steam velocity of flow because steam velocity of flow distributes unevenly. Therefore, steam distribution device 60 still is favorable to improving system control's stability, and when existence in the food steam ager 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 60 is favorable to improving the precision of control, and then promotes the intelligent control level.

Example ten

The present embodiment is improved on the basis of the above-mentioned embodiment, and the food steaming box further comprises a cooler 81 for cooling the steam cycle driving device 40.

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

Specifically, when the food steamer is applied to the food steamer, in order to adapt to the structure of the case 12 and facilitate the implementation of the cooler 81, the gas driving part of the steam circulation driving device 40 is disposed inside the food steamer, and the motor of the steam circulation driving device 40 is disposed outside the food steamer.

Specifically, to power the cooler 81, the door 11 and the cabinet 12 are suitably arranged to be pivotally hinged, and the cooler 81 is powered by providing a circuit connection at the end of the pivot.

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 introduce cold air 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 eleven

The present embodiment is improved on the basis of the above-mentioned embodiment, and a heat preservation part 82 is provided between the food steaming box 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 preservation structure can be a double-layer metal clamp inner heat preservation material or double-layer metal middle vacuumizing, and further structurally prevents heat in the food steaming box from losing to the external environment. The heat preservation part can also be treated by other heat preservation processes. Through the arrangement, heat exchange is reduced between the inside of the food steam box and the external environment, and heat loss in the food steam box is avoided.

Example twelve

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

the food carrying structure 20 is fixedly or movably disposed in the food steamer.

Specifically, the food carrying structure 20 may be fixed in the food steaming box or movably disposed in the food steaming box. The fixed arrangement is understood to be a solid connection of the food carrying structure 20 with the tank body 12 to form an integral structure which facilitates the overall sealing of the air path when the food carrying structure 20 has an air path comprising a double structure formed by the inner wall of the tank body 12 and the outer wall of the food carrying structure 20 together. The movable arrangement can be understood as simple placement, and can also be understood as movable connection through snap fastening, magnet adsorption and other manners, which is beneficial to flexibly disassembling the food bearing structure 20, facilitating taking out or putting in food, and facilitating cleaning of the food bearing structure 20 and the inside of the box body 12 by a user.

EXAMPLE thirteen

The embodiment is improved on the basis of the first embodiment, and the steam generating device comprises an energy storage steaming device.

The low-power slow preheating means that the heater slowly heats water through the low-power heater in advance and maintains the water at a specific temperature before the food steaming box is started but food heating work is not carried out. Its meaning lies in, when food steam ager need carry out the food heating, steam generating device can release high temperature steam the very first time, because the utility model discloses the design is through the food on steam forced circulation process food bearing structure 20 for the inside high temperature high pressure state that remains throughout of food steam ager, the heater only needs can satisfy the subsequent steam demand of food steam ager through the low-power heating, makes the food steam ager of this embodiment only need the low-power heater just can realize that the food heating rises fast and evaporates, and only can maintain the subsequent steam demand of food steam ager through the low-power heater. Among the prior art, electric steam ager all heats up the steam to water immediately through high-power heater, because current electric steam ager steam just releases the external world without cyclic utilization for current electric steam ager needs powerful heater to continue heating work in order to maintain sufficient steam and takes place the speed, compare prior art, this embodiment is in the realization fast to be evaporated with high-efficient food heating's the condition under, powerful heater has been saved, the energy consumption has been reduced, make intelligent food steam ager can be applied to the family in a flexible way, the office building, outdoor steaming etc. have strict place to the energy consumption requirement.

To sum up, the embodiment of the utility model provides a food steam ager can make the steam cycle of food of flowing through the food surface, avoids heat and moisture to run off outside the steam ager 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 through setting up chamber door 11 and box 12, set up food bearing structure 20 and steam generation device 30 on the food steam ager 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 steam box, the electric food steam box can be flexibly configured in a non-professional cooking scene, the commercial application is expanded, the use efficiency of the electric food steam box in a professional cooking scene can be improved, a relatively stable and controllable system is formed inside the food steam box, and the steaming cooking process has a basis of standardized control.

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 steam box body; the steam box body comprises a box body and a box door movably matched and connected with the box body; the box door and the box body are in butt joint to form a box inner space in an enclosing mode, the box body is provided with a first channel, and the first channel is communicated with the box inner space through a communicating structure;

a food carrying structure located within the steam box body;

2. The food steamer of claim 1 wherein the food steamer further comprises:

3. The food steamer of claim 2 wherein the food steamer further comprises:

4. The food steamer of claim 2 or 3 wherein 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 steam box body.

5. The food steamer as claimed in claim 4, wherein the drive control means controls the flow rate of the steam generated by the steam generating means through the steam generating means; and/or

6. A food steamer as claimed in claim 2 or claim 3 wherein the steam generating means comprises an energy storage steamer.

7. The food steamer of any one of claims 1 to 3 wherein the food steamer further comprises: and the cooler is used for cooling the steam circulation driving device.

8. A food steamer as claimed in any one of claims 1 to 3, characterized in that a thermal insulation is provided between the steamer body and the external environment.

9. The food steamer as claimed in any one of claims 1 to 3, wherein a steam distribution device for guiding steam is arranged between the steam inflow end and the steam outflow end of the food carrying structure.

10. The food steamer of claim 2 or 3 wherein the steamer body comprises a one-piece body structure having a first enclosure, the one-piece body structure comprising the food carrying structure and the steam generating device within the first enclosure; or

11. The food steamer of claim 10 wherein the steam cycle driving means provides a driving force to the space within which the food carrying structure is located to drive steam within the space within 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.

12. The food steamer of claim 11 wherein the steam cycle drive is located within the steamer body; or

13. The food steamer of claim 1 wherein the housing comprises an inner housing wall and an outer housing wall, the first passageway being defined between the inner housing wall and the outer housing wall to form the housing with the first passageway.

14. The food steamer as claimed in claim 13, wherein the communicating structure comprises a first communicating structure, the first communicating structure is located at the upper part of the inner wall of the box body, and the steam circulation driving device is located at the upper part of the inner wall of the box body and opposite to the first communicating structure.

15. The food steamer of claim 14 wherein the communication structure further comprises a second communication structure, the second communication structure being located in a lower portion of the inner wall of the housing.