CN112137395A

CN112137395A - Steam heating structure for cooking equipment and cooking equipment

Info

Publication number: CN112137395A
Application number: CN202010891882.0A
Authority: CN
Inventors: 祁亚辉; 付远华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-12-29
Anticipated expiration: 2040-08-28
Also published as: CN112137395B

Abstract

The invention relates to a steam heating structure for cooking equipment and the cooking equipment with the structure, which comprises an inner container, wherein the top of the inner container is provided with a steam generating cavity with a water inlet and a steam outlet, a water storage groove, a heating device for heating water in the water storage groove and a first flow guide surface arranged on the top surface of the steam generating cavity are arranged in the steam generating cavity, the first flow guide surface and the steam outlet are arranged in an up-down opposite mode, and condensed water on the first flow guide surface can flow back to the water storage groove. The invention can avoid the problems of bad smell and difficult cleaning caused by dripping of food residues, juice and the like, improve the steam generation efficiency and the steam thermal efficiency, reduce the water content in the steam, improve the taste of cooked food, and simultaneously, the condensed water on the first flow guide surface can flow back to the water storage groove, thereby realizing the recycling of the condensed water.

Description

Steam heating structure for cooking equipment and cooking equipment

Technical Field

The invention relates to the field of cooking equipment, in particular to a steam heating structure for cooking equipment and the cooking equipment.

Background

The steam generating device of the existing steaming cooking equipment generally has two forms: (1) the water in the water tank is input into the inner container, and the water flowing to the heating plate is directly heated to generate water vapor; (2) the steam generator is arranged outside the inner container, for example, the steam generator is arranged outside the inner container, water in the water tank is input into the steam generator, and the steam generator generates steam and inputs the steam into the inner container.

The steam generating device is directly arranged in the inner container, so that the heat efficiency is high, but the steam generating device has the following defects: (1) because the steam generator is arranged at the bottom of the inner container, food soup can drop to the steam generating device at the bottom in the using process of a user, and the food soup can generate unpleasant smell, and is difficult to clean after being burnt, so that the using experience of the user is influenced; (2) because the steam generating device is arranged at the bottom of the inner container, the steam generated at the bottom firstly passes through the cooking utensil and then acts on food, and the heat efficiency is reduced; (3) because the steam generating device is arranged at the bottom of the inner container, the generated steam is not subjected to water-vapor separation, and small water drops are contained in the steam, so that the taste of cooked food is influenced. From the above, the existing steam generating device for steaming cooking equipment still needs to be improved.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a steam heating structure for cooking equipment with high thermal efficiency aiming at the prior art.

A second technical problem to be solved by the present invention is to provide a steam heating structure for a cooking apparatus, which can prevent food residue from dripping.

The third technical problem to be solved by the present invention is to provide a steam heating structure for cooking equipment with low moisture content in steam, aiming at the prior art.

A fourth technical problem to be solved by the present invention is to provide a cooking apparatus having the above steam heating structure in view of the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides a steam heating structure for cooking equipment, includes the inner bag, its characterized in that, the top of inner bag is provided with the steam generation chamber of utensil water inlet and steam outlet, is provided with the retaining recess in this steam generation chamber, is arranged in heating device and the first water conservancy diversion face of setting at this steam generation chamber top surface of heating water in the retaining recess, and this first water conservancy diversion face sets up with above-mentioned steam outlet relatively from top to bottom, and the condensation hydroenergy on the first water conservancy diversion face flows back to above-mentioned retaining recess.

Furthermore, a second flow guide surface which is opposite to the first flow guide surface up and down is further arranged on the bottom surface of the steam generation cavity, the steam outlet is formed in the second flow guide surface, and condensed water on the second flow guide surface can flow back to the water storage groove. Steam after contacting with first water conservancy diversion face like this moves down and contacts with second water conservancy diversion face under blockking of first water conservancy diversion face to realize the separation of second time steam of steam, thereby further reduce the moisture content in the steam, further promote the taste of culinary art food, the comdenstion water on the second water conservancy diversion face flows back to the retaining recess simultaneously, thereby realizes the recycle of comdenstion water.

Further, first water conservancy diversion face and second water conservancy diversion face are the inclined plane, and above-mentioned retaining recess sets up respectively in the lowest of this first water conservancy diversion face and second water conservancy diversion face. Therefore, the condensed water formed on the first flow guide surface and the second flow guide surface can be guided into the water storage groove more smoothly.

Furthermore, the second flow guide surface is upwards convexly provided with a steam outlet boss, and the steam outlet is arranged on the top wall of the steam outlet boss. Steam that produces in can avoiding retaining recess through setting up out the vapour boss directly escapes from going out the steam port, simultaneously through steam with go out touching of the lateral surface of vapour boss can realize the supplementary steam and water separation to steam, further reduce the water content in the steam again.

Furthermore, the top surface of the steam outlet boss is a plane. The resistance of the inclined plane to the steam outlet of the steam outlet is avoided, and the steam outlet efficiency of the steam outlet is improved.

Furthermore, the appearance of the steam outlet boss is square, the steam outlet comprises at least one steam outlet hole, and the steam outlet holes are arranged at intervals along the length direction of the steam outlet boss respectively. Thereby enabling the water vapor to enter the inner container evenly and smoothly.

Furthermore, the top plate of the inner container protrudes upwards to form a first protruding part, the upper surface of the first protruding part is the second flow guide surface, the lower surface of the first protruding part is a third flow guide surface, and the bottom of the steam outlet boss forms a steam outlet concave cavity. The roof by the inner bag directly constitutes a part of above-mentioned steam generation chamber, and the heat of heating in the steam generation chamber can directly transmit to the inner bag like this to can carry out make full use of to the heat that produces in the steam generation chamber, avoid the heat waste, also can reduce the manufacturing cost in steam generation chamber simultaneously. In addition, steam in the inner bag rises to the third water conservancy diversion face and takes place the condensation, the comdenstion water of production can avoid dripping on food under the water conservancy diversion of third water conservancy diversion face, and the play vapour cavity enables the steam that goes out steam port spun water vapour to be full of this play vapour cavity, enables water vapour on the one hand and supplies gently to the inner bag in, and on the other hand can avoid the water vapour among the inner bag to flow back to steam generation chamber in, perhaps the food peculiar smell that produces among the culinary art process in the inner bag scurries to flowing steam generation chamber in and causes the pollution of steam generation chamber.

Further, the roof of inner bag caves in downwards and forms mounting groove, above-mentioned first bellying is located this mounting groove, and the top of this first bellying is not higher than the mouth edge of mounting groove, and above-mentioned retaining groove sets up on this mounting groove's cell wall, and the mouth edge upper cover of this mounting groove is equipped with the apron, and this apron has the second bellying, and the lower surface of this second bellying is above-mentioned first water conservancy diversion face promptly. Therefore, the whole steam generating cavity is simple in structure and convenient to process and manufacture.

Further, the water storage device also comprises a water level detection device for detecting the water level in the water storage groove, and the detection end of the water level detection device can extend into the water storage groove. The water level in the water storage groove can be detected through the water level detection device, and the water level in the water storage groove is prevented from being too high or too low.

Further, one part of the cover plate protrudes upwards to form a water inlet boss which is opposite to the water storage groove from top to bottom, the water inlet is arranged on the water inlet boss, a water inlet joint is connected to the water inlet, and the water inlet joint is communicated with a water outlet of the water pump through a water inlet pipe. The inner peripheral surface of the water inlet boss can prevent splashing water drops generated by dripping water flow in the water inlet into the water storage groove, and the water drops are prevented from splashing to the first flow guide surface to cause the heat loss of water vapor rising to the first flow guide surface.

Further, the shape of first water conservancy diversion face and second water conservancy diversion face all is the sphere form, and the appearance of above-mentioned retaining recess is the ring form, and the periphery of this first water conservancy diversion face links to each other along circumference with the outer peripheral edge of the notch of retaining recess, and the periphery of second water conservancy diversion face links to each other along circumference with the internal perisporium of the notch of retaining recess along circumference. The spherical first flow guide surface and the spherical second flow guide surface can enable water vapor to be separated from water vapor better, and therefore generated condensed water can flow back to the water storage groove more efficiently.

Further, the heating device is a heating pipe, and the heating pipe is annular in shape and is arranged in the water storage groove along the length direction of the water storage groove. The heating device adopts the heating pipe, the structure is simple, the use is safe, and the circular heating pipe can be fully contacted with the water in the water storage groove, so that the steam generation efficiency is further improved.

The technical scheme adopted for further solving the fourth technical problem is as follows: a cooking apparatus having the steam heating structure as described above.

Compared with the prior art, the invention has the advantages that: in addition, the heating device can directly heat water in the water storage groove to generate steam, so that the steam generation efficiency is improved, the generated steam is directly contacted with food, so that the heat efficiency of the steam is improved, in addition, the steam generated in the water storage groove rises upwards to be contacted with the first flow guide surface, so that the first water-steam separation of the steam is realized, the moisture content in the steam is reduced, the taste of the cooked food is improved, and meanwhile, condensed water on the first flow guide surface can flow back to the water storage groove, so that the recycling of condensed water is realized.

Drawings

FIG. 1 is a schematic structural diagram of a cooking apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of a cooking apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of another partial structure of a cooking apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an inner container according to an embodiment of the present invention;

FIG. 5 is an exploded view of the inner container in an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 in another direction;

fig. 7 is a sectional view of a cooking apparatus in an embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 7, a cooking device, particularly a steaming cooking device capable of cooking food by using steam, such as an electric steamer and a steaming and baking integrated machine, is provided. The cooking equipment comprises a box body 1 and an inner container 2 arranged in the box body 1, wherein the front sides of the box body 1 and the inner container 2 are respectively opened and covered with a door body 11, an upper mounting plate 12 is horizontally arranged above the inner container 2, and a gap is reserved between the lower surface of the upper mounting plate 12 and the top surface of the inner container 2.

Further, above-mentioned cooking equipment still includes steam heating structure, and this steam heating structure includes above-mentioned inner bag 2, and the top of this inner bag 2 is provided with steam generation chamber 3, and this steam generation chamber 3 has water inlet 38 and steam outlet 35. Still further, the steam generating chamber 3 is provided with a water storage groove 33, a heating device for heating water in the water storage groove 33, and a first flow guide surface 31 disposed on the top surface of the steam generating chamber 3, the first flow guide surface 31 and the steam outlet 35 are disposed opposite to each other in the vertical direction, and condensed water on the first flow guide surface 31 can flow back to the water storage groove 33. In this way, the steam generating chamber 3 is arranged at the top of the inner container 2, thereby avoiding the problems that in the cooking process, food residue, juice and the like drop in the steam generation cavity 3, the problems of bad smell and difficult cleaning caused by the dropping of the food residue, the juice and the like are effectively avoided, the use experience of a user is improved, in addition, the heating device can directly heat the water in the water storage groove 33 to generate steam, thereby improving the efficiency of steam generation, and the generated steam is directly contacted with food, thereby improving the thermal efficiency of the steam, in addition, the steam generated in the water storage groove 33 rises upwards to contact with the first diversion surface 31, thereby realizing the first water-vapor separation of the steam, reducing the water content in the water vapor, improving the taste of the cooked food, meanwhile, condensed water on the first flow guide surface 31 can flow back to the water storage groove 33, so that the condensed water can be recycled. Preferably, in this embodiment, the steam generating chamber 3 is disposed at the center of the top of the inner container 2, so that the steam generated in the steam generating chamber 3 can be more uniformly supplemented into the inner container 2.

Further, a second flow guiding surface 32 is disposed on the bottom surface of the steam generating chamber 3, which is opposite to the first flow guiding surface 31, the steam outlet 35 is disposed on the second flow guiding surface 32, and the condensed water on the second flow guiding surface 32 can flow back to the water storage groove 33. Steam after contacting with first water conservancy diversion face 31 like this moves down and contacts with second water conservancy diversion face 32 under the blockking of first water conservancy diversion face 31 to realize the second steam separation of steam, thereby further reduce the moisture content in the steam, further promote the taste of culinary art food, the comdenstion water on the second water conservancy diversion face 32 flows back to in retaining recess 33 simultaneously, thereby realizes the recycle of comdenstion water. Preferably, the first guide surface 31 and the second guide surface 32 are both inclined surfaces, and the water storage groove 33 is respectively disposed at the lowest position of the first guide surface 31 and the second guide surface 32, so that the condensed water formed on the first guide surface 31 and the second guide surface 32 can be more smoothly guided into the water storage groove 33.

Further, the second guide surface 32 is provided with a steam outlet boss 36 protruding upward, and the steam outlet 35 is provided on the top wall of the steam outlet boss 36. Steam that can avoid producing in the retaining recess 33 directly escapes from steam outlet 35 through setting up out vapour boss 36, can realize the supplementary steam and water separation to steam through touching of steam and the lateral surface of play vapour boss 36 simultaneously, further reduces the water content in the steam again. The steam outlet boss 36 is square in shape, the steam outlet 35 includes at least one steam outlet hole 351, and the steam outlet holes 351 are respectively arranged along the length direction of the steam outlet boss 36 at intervals, so that water vapor can uniformly and stably enter the inner container 2. Further, preferably, the top surface of the steam outlet boss 36 is a plane, so that resistance caused by steam outlet of the steam outlet 35 by an inclined surface can be avoided, and the steam outlet efficiency of the steam outlet 35 is improved. In this embodiment, the first flow guiding surface 31 and the second flow guiding surface 32 are both spherical, the water storage groove 33 is circular, the periphery of the first flow guiding surface 31 is circumferentially connected to the outer periphery of the notch of the water storage groove 33, and the periphery of the second flow guiding surface 32 is circumferentially connected to the inner periphery of the notch of the water storage groove 33. The spherical first flow guide surface 31 and the spherical second flow guide surface 32 can enable water vapor to be separated from water vapor better, and meanwhile, the generated condensed water can flow back to the water storage groove 33 more efficiently. The heating device is a heating pipe 34, and the heating pipe 34 is annular and is arranged in the water storage groove 33 along the length direction of the water storage groove 33. The heating device adopts the heating pipe 34, the structure is simple, the use is safe, and the circular heating pipe 34 can be fully contacted with the water in the water storage groove 33, so that the steam generation efficiency is further improved. In addition, in this embodiment, there are three steam outlet bosses 36, and the centers of the second guiding surfaces 32 are used as the centers of circles and are arranged at intervals in the circumferential direction.

The steam generating chamber 3 may have a plurality of specific implementation manners, in this embodiment, the top plate of the inner container 2 is recessed downward to form a mounting groove 21, a spherical first protrusion 22 protrudes upward from the center of the mounting groove 21, the upper surface of the first protrusion 22 is the second guiding surface 32, the lower surface of the first protrusion 22 is a third guiding surface 222, and the bottom of the steam outlet boss 36 forms a steam outlet cavity 221. The roof by inner bag 2 directly constitutes a part of above-mentioned steam generation chamber 3, and the heat of heating in the steam generation chamber 3 can directly transmit to inner bag 2 like this to can carry out make full use of to the heat that produces in the steam generation chamber 3, avoid the heat waste, also can reduce steam generation chamber 3's manufacturing cost simultaneously. In addition, steam in the inner container 2 rises to the third flow guide surface 222 to be condensed, generated condensed water can be prevented from dropping on food under the flow guide of the third flow guide surface 222, the steam outlet cavity 221 enables water steam sprayed from the steam outlet 35 to fill the steam outlet cavity 221, on one hand, the water steam can be smoothly supplemented into the inner container 2, on the other hand, the water steam in the inner container 2 can be prevented from flowing back to the steam generation cavity 3, or food peculiar smell generated in the cooking process in the inner container 2 can be prevented from flowing into the steam generation cavity 3 to cause the pollution of the steam generation cavity 3.

Further, the groove wall portion of the mounting groove 21 around the first protrusion 22 forms the water storage groove 33, the top of the first protrusion 22 is not higher than the opening edge of the mounting groove 21, a cover plate 5 is covered on the opening edge of the mounting groove 21, the cover plate 5 has a spherical second protrusion 51 protruding upward, and the lower surface of the second protrusion 51 is the first flow guiding surface 31. Therefore, the whole steam generating cavity 3 is simple in structure and convenient to process and manufacture. As can be seen from the above, in the present embodiment, the mounting groove 21 and the cover plate 5 are covered to form the steam generating chamber 3, in order to make the structure of the steam generating chamber 3 more stable, the periphery of the second protruding portion 51 extends horizontally outwards along the circumferential direction to form a mounting peripheral edge 52, the mounting peripheral edge 52 is tightly attached to the peripheral edge of the mounting groove 21 along the circumferential direction and is fixed by a fastener, in the present embodiment, the cover plate 5 is disposed on the lower surface of the upper mounting plate 12 and the top surface of the inner container 2.

Further, a water inlet boss 37 opposite to the water storage groove 33 is formed by upwardly protruding one position of the cover plate 5, the water inlet 38 is opened on the water inlet boss 37, and the water inlet 38 is connected with a water inlet joint 381, and the water inlet joint 381 is communicated with the water outlet of the water pump 4 through a water inlet pipe (not shown). Therefore, the inner circumferential surface of the water inlet boss 37 can block splashed water drops generated when water flow in the water inlet 38 is dripped into the water storage groove 33, and heat loss of water vapor rising to the first flow guide surface 31 due to the fact that the water drops splash to the first flow guide surface 31 is avoided. In this embodiment, the water pump 4 is mounted on the upper surface of the upper mounting plate 12. In addition, a water level detecting device 39 for detecting the water level in the water storage recess 33 is installed on the water inlet boss 37, and a detection end of the water level detecting device 39 can be inserted into the water storage recess 33. The water level in the water storage recess 33 can be detected by the water level detection means 39, avoiding that the water level in the water storage recess 33 is too high or too low. This water level detection device 39 and cooking equipment's controller signal connection, and the controller with above-mentioned 4 signal connection of water pump, water level detection device 39 feeds back to the controller, the opening and close of controller control water pump 4 to control the inflow, make the water in the retaining recess 33 keep at a suitable water level.

The working process of the invention is as follows:

when cooking starts, the water pump 4 drives water into the water storage groove 33 through the water inlet 38, the heating device starts to work to heat the water in the water storage groove 33, and the water in the water storage groove 33 is heated to generate steam. The generated steam rises upwards to the spherical first flow guide surface 31, so that the first water-steam separation of the steam is realized, the steam which is contacted with the first flow guide surface 31 moves downwards under the blocking of the first flow guide surface 31 and is contacted with the spherical second flow guide surface 32, the second water-steam separation of the steam is realized, and meanwhile, the auxiliary water-steam separation of the steam can be realized through the contact of the steam and the outer side surface of the steam outlet boss 36. Therefore, the water content in the water vapor can be effectively reduced through the water-vapor separation of the water vapor, so that the mouthfeel of the cooked food is improved. The water vapor after the secondary water vapor separation enters the inner container 2 through the vapor outlet 35 for cooking food, meanwhile, the water vapor in the inner container 2 rises to the third flow guide surface 222 to be condensed, and the generated condensed water is guided by the third flow guide surface 222 to be prevented from dropping on the food.

Claims

1. The utility model provides a steam heating structure for cooking equipment, includes inner bag (2), its characterized in that, the top of inner bag (2) is provided with steam generation chamber (3) of utensil water inlet (38) and steam outlet (35), is provided with retaining recess (33) in this steam generation chamber (3), is arranged in heating device and the first water conservancy diversion face (31) of setting at this steam generation chamber (3) top surface of heating water in retaining recess (33), and relative setting from top to bottom in this first water conservancy diversion face (31) and above-mentioned steam outlet (35), and the condensation hydroenergy on first water conservancy diversion face (31) flows back to in above-mentioned retaining recess (33).

2. The steam heating structure as set forth in claim 1, wherein the bottom surface of the steam generating chamber (3) is further provided with a second guide surface (32) vertically opposite to the first guide surface (31), the steam outlet (35) is formed on the second guide surface (32), and the condensed water on the second guide surface (32) can flow back to the water storage recess (33).

3. The steam heating structure as set forth in claim 2, wherein the first guide surface (31) and the second guide surface (32) are both inclined surfaces, and the water storage grooves (33) are respectively provided at the lowest portions of the first guide surface (31) and the second guide surface (32).

4. A steam heating structure as defined in claim 3, wherein said second deflector surface (32) is upwardly and convexly provided with a steam outlet boss (36), and said steam outlet (35) is opened on a top wall of said steam outlet boss (36).

5. Steam heating structure as claimed in claim 4, characterized in that the top surface of the steam outlet boss (36) is plane.

6. The steam heating structure as set forth in claim 4, wherein the steam outlet boss (36) has a square shape, the steam outlet (35) includes at least one steam outlet hole (351), and the steam outlet holes (351) are respectively provided at intervals along a length direction of the steam outlet boss (36).

7. A steam heating structure as claimed in any one of claims 2 to 6, wherein the top plate of the inner container (2) is upwardly convex to form a first convex portion (22), the upper surface of the first convex portion (22) is the second flow guiding surface (32), the lower surface of the first convex portion (22) is the third flow guiding surface (222), and the bottom of the steam outlet boss (36) forms a steam outlet cavity (221).

8. The steam heating structure as set forth in claim 7, wherein the ceiling of the inner container (2) is depressed downward to form a mounting groove (21), the first protrusion (22) is located in the mounting groove (21), the top of the first protrusion (22) is not higher than the rim of the mounting groove (21), the water storage groove (33) is provided on the wall of the mounting groove (21), and the rim of the mounting groove (21) is covered with a cover plate (5), the cover plate (5) has a second protrusion (51), and the lower surface of the second protrusion (51) is the first guiding surface (31).

9. A steam heating structure as set forth in any of claims 1 to 6, further comprising a water level detecting means (39) for detecting a water level in said water storage recess (33), wherein a detecting end of said water level detecting means (39) is capable of protruding into said water storage recess (33).

10. The steam heating structure as set forth in claim 8, wherein one portion of the cover plate (5) is upwardly protruded to form a water inlet boss (37) vertically opposite to the water storage recess (33), the water inlet (38) is opened on the water inlet boss (37), and the water inlet (38) is connected with a water inlet joint (381), and the water inlet joint (381) is communicated with the water outlet of the water pump (4) through the water inlet pipe.

11. A steam heating structure as set forth in any of claims 1 to 6, wherein the first guide surface (31) and the second guide surface (32) are each spherical in shape, and the water storage groove (33) is annular in shape, the first guide surface (31) having a peripheral edge circumferentially continuous with an outer peripheral edge of the notch of the water storage groove (33), and the second guide surface (32) having a peripheral edge circumferentially continuous with an inner peripheral edge of the notch of the water storage groove (33).

12. The steam heating structure as set forth in claim 11, wherein the heating means is a heating pipe (34), and the heating pipe (34) has a circular shape and is disposed in the water storage recess (33) along a length direction of the water storage recess (33).

13. A cooking apparatus having a steam heating structure as claimed in any one of claims 1 to 12.