CN113974429A

CN113974429A - Heat collection type infrared heating steamer

Info

Publication number: CN113974429A
Application number: CN202111492883.9A
Authority: CN
Inventors: 姚颖
Original assignee: Hangzhou Zuopasi Industry Co ltd
Current assignee: Hangzhou Zuopasi Industry Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-01-28

Abstract

The invention relates to a kitchen cooker, and aims to provide a heat-collecting type infrared heating steamer. The method comprises the following steps: the steamer base comprises a microcrystalline glass heat conduction layer and a heat insulation base plate which are arranged in the shell; the whole microcrystalline glass heat conducting layer is in a kettle shape and is connected with the shell through the extended upper edge to form a base cavity together; the heat insulation chassis in a semi-surrounding structure is positioned in the cavity of the base, and the upper surface of the heat insulation chassis is distributed with electric heating wires; the bottom of the microcrystalline glass heat conduction layer is supported by a protruding part arranged on the surface of the heat insulation chassis and keeps a distance with the electric heating wire; the pot body is positioned in the kettle-shaped cavity formed by the microcrystalline glass heat-conducting layer, and the pot body and the microcrystalline glass heat-conducting layer are tightly attached; at least one food steamer is arranged on the upper edge of the pot body; the pot cover is arranged on the upper edge of the steamer. The structure of the heating part of the electric steamer is improved, the heating part of the traditional plane structure is improved into semi-enclosed concave surface heating, and the heating area completely wraps the bottom of the steamer body, so that the heating area is large, the heating is more uniform, and the heat utilization rate is improved.

Description

Heat collection type infrared heating steamer

Technical Field

The invention relates to a kitchen cooker, in particular to a heat collection type infrared heating steamer.

Background

The steamer is mostly heated by a heating plate arranged at the bottom of the steamer or electromagnetic induction. The heating plate is heated by electrifying the electric heating pipe to generate heat, and the heat is conducted through the stainless steel pot bottom to heat the liquid to generate steam. The principle of electromagnetic heating is that an alternating magnetic field is generated by the components of an electronic circuit board, when a ferrous container is placed on the iron-containing container, the surface of the container cuts alternating magnetic lines of force to generate alternating current (namely eddy current) on the metal part at the bottom of the container, the eddy current enables carriers at the bottom of the container to move randomly at a high speed, and the carriers collide and rub with atoms to generate heat energy, so that the effect of heating objects is achieved. Both of these heating modes have limitations on the containers that carry the liquid. Wherein, the electric heating pipe needs the pot body with good heat conduction, and the electromagnetic heating can only select the magnetic metal pot.

The heating temperature of the electric steamer on the market is not high and the heating area is small. Because the heating surface is a plane, heat is easy to dissipate, the steam generation time in the early stage is very long, and the longer the heating time is, the more electricity is consumed. The electric steamer heated by the electric heating pipe can not continuously keep high temperature under the dry-burning state because the heating device per se, so in order to prevent the loss in the heat transfer process, an integral structure is mostly adopted.

In summary, the existing electric steamer has the following defects: (1) the pot body can not be disassembled, and water is easy to cause short circuit when being washed, so that potential safety hazards exist. (2) Because steam is too big during the food of cooking, and the food steamer is mostly the metal material, the unable rapid evaporation of steam that produces when this has just led to cooking, and a large amount of steam assembles and leads to the water droplet on food in stainless steel cage steamer tray bottom, and this has not only influenced the pleasing to the eye of food, more can influence the taste and the taste of food. (3) Because most of materials used for manufacturing the electric steamer are stainless steel, and iron and carbon elements on the surface of the stainless steel can be oxidized at high temperature after being heated at high temperature for a long time, the stainless steel pot is yellow or even black; although the phenomenon can not cause harm to human bodies, the discoloured pot bottom can also affect the mood of the pot when in use due to poor appearance. (4) The heating area is only limited at the bottom of the pan body, and the heating area is too small.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a heat collection type infrared heating steamer.

In order to solve the technical problems, the invention adopts the following solution:

provided is a heat collecting type infrared heating steamer, comprising: the steamer base comprises a microcrystalline glass heat conduction layer and a heat insulation base plate which are arranged in the shell; the whole microcrystalline glass heat conducting layer is in a kettle shape and is connected with the shell through the extended upper edge to form a base cavity together; the heat insulation chassis in a semi-surrounding structure is positioned in the cavity of the base, and the upper surface of the heat insulation chassis is distributed with electric heating wires; the bottom of the microcrystalline glass heat conduction layer is supported by a protruding part arranged on the surface of the heat insulation chassis and keeps a distance with the electric heating wire; the pot body is positioned in the kettle-shaped cavity formed by the microcrystalline glass heat-conducting layer, and the pot body and the microcrystalline glass heat-conducting layer are tightly attached; at least one food steamer is arranged on the upper edge of the pot body; the pot cover is arranged on the upper edge of the steamer.

As the preferred scheme of the invention, the upper surface of the heat insulation chassis is provided with a groove which is in annular or Chinese character hui layout; the electric heating wire is embedded in the groove, two ends of the electric heating wire are connected to a temperature adjusting controller arranged in the cavity of the base through a lead, and the temperature adjusting controller is connected with a power socket through a lead.

As the preferred scheme of the invention, the lower surface of the heat insulation chassis is provided with a plurality of heat dissipation holes and a thermocouple for detecting temperature, and the thermocouple is connected to a temperature regulation controller arranged in the cavity of the base through a lead.

As a preferable scheme of the invention, the protruding part of the microcrystalline glass supporting heat conducting layer is a heat insulating ring or a plurality of heat insulating columns which are uniformly arranged at intervals; the protruding part is a separate part fixedly arranged on the heat insulation chassis by a screw or is an integrated structure connected with the heat insulation chassis.

As a preferable scheme of the invention, the bottom of the shell is provided with a heat radiation fan and is connected to a temperature regulation controller arranged in the cavity of the base through a lead.

As a preferable scheme of the invention, the heat insulation chassis is not directly contacted with the shell, and a support frame is arranged between the bottom of the shell and the heat insulation chassis; the support frame comprises a mounting screw, and a support spring is sleeved on the outer side of the screw.

As the preferred scheme of the invention, the pot body is provided with an upper edge which extends outwards relative to the side wall of the pot body, a groove or a step is arranged at the upper edge, and the outer edge of the bottom of the steamer is positioned in the groove or the step; a groove or a step is arranged at the upper edge of the food steamer, and the outer edge of the bottom of the pot cover is located in the groove or the step.

As a preferable scheme of the present invention, a sealing gasket is provided in the groove or the step; or the pot body and the microcrystalline glass heat conduction layer are internally provided with magnets matched with each other; or the shell is provided with a temperature adjusting knob and a power socket which are respectively connected to a temperature adjusting controller arranged in the cavity of the base through wires; or the bottom of the food steamer is provided with a diversion trench, and a water outlet is arranged in the diversion trench.

As the preferred scheme of the invention, the pot cover is provided with a handle and an exhaust valve capable of exhausting gas in a single direction, and the weight of the pot cover is greater than the maximum steam lifting force generated by the steamer under the condition of maximum heating power.

As the preferred scheme of the invention, the pot body and the food steamer are made of ceramic materials and have the external shapes of the conventional pot body and food steamer; the number of the food steamer is at least 2, and the side wall of the food steamer is provided with a handle.

Description of the inventive principles:

the invention adopts a detachable design in the whole structure, and the container part and the heating part are designed into detachable parts. The pot body can be taken out from the steamer base and cleaned independently, so that the short circuit of a power supply caused by cleaning is avoided. The heating area adopts a heat collection type heating structure and far infrared heating, the semi-surrounding structure also prevents heat from being dissipated in the heating direction, a large amount of steam can be generated in the pot body more quickly, the time for heating food is greatly shortened, and the loss of electric quantity is greatly reduced. The surface temperature of a heating body can reach 700 ℃ at most, the temperature is far higher than the temperature of an electric heating tube and electromagnetic heating, and the required temperature condition can be easily reached even if heat is lost in the transmission process. And the pan material is unrestricted, has accomplished the heating temperature similar with the gas furnace but safer than the gas heating.

The heat-conducting medium matched with the pot body is a microcrystalline glass heat-conducting layer. The microcrystalline glass has good aging resistance, can be rapidly heated or cooled in a certain high-temperature environment, has very low thermal expansion coefficient and good thermal shock resistance, and can be processed into different sizes; the magnetic permeability and the heat conduction capability are strong, the high temperature resistance is realized, the glossiness is good, the hand feeling is fine and smooth, and the environment is protected; the color of the material is not changed, the material is not deformed, and the material is easy to clean after long-term use, and is a very practical material. The pot body is matched with the microcrystalline glass heat conduction layer in shape and is tightly attached, if the magnetic suction type fixing is further adopted, the stability of the microcrystalline glass heat conduction layer and the pot body assembly can be ensured.

The heat insulation chassis is used for fixing the heating wire. The heat insulation chassis adopts a concave design of a semi-surrounding structure, and the heating wires are uniformly distributed on the heat insulation chassis, so that the direction of heat generated when the heating wires are electrified for heating can be towards the bottom of the pot body. The concave structure has the advantage of preventing heat from escaping to the periphery compared with a plane type heating device. The back of the heat insulation chassis is provided with a conical air hole which is used for avoiding the bulge phenomenon of the heat insulation chassis caused by long-time heating.

The function of thermal-insulated circle is in order to provide the support for microcrystalline glass heat-conducting layer, prevents simultaneously that the bottom surface of microcrystalline glass heat-conducting layer direct contact resistance wire. The hardness of the heat insulation ring can be higher compared with that of the heat insulation chassis, and the heat insulation ring is the main stressed part in the whole heating device.

The temperature control is realized by adopting the combination of a thermocouple, an electric heating wire and a temperature-adjusting controller, and a temperature-adjusting control circuit is arranged in the temperature-adjusting controller. The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument (a secondary instrument). The thermocouple has the advantages of simple assembly, convenient replacement, good anti-seismic performance, high measurement precision, large measurement range (-200 ℃ -1400 ℃, and-270 ℃ -2800 ℃ under special conditions), quick thermal response time, high mechanical strength, good pressure resistance, long service life and the like.

The pot body and the food steamer are preferably made of ceramic materials, and the surfaces of the ceramic pot body and the food steamer are provided with a layer of hard enamel, so that the phenomenon of surface oxidation and color change can not occur during heating, and the appearance is improved. The bottom of the food steamer is provided with a diversion trench, and steam is condensed into water drops to flow into the diversion trench, so that the water drops can not directly drip on food to influence the taste of the food; the water in the diversion trench flows back to the pan body, thus forming a water vapor cycle. The exhaust valve cover can discharge redundant steam, so that food is steamed by the steam, and excessive moisture is prevented from remaining in the space of the food steamer. Because the phenomenon of steam backflow can not occur, the nutrition is ensured, and the food is beautiful.

Compared with the prior art, the invention has the technical effects that:

1. the structure of the heating part of the electric steamer is improved, the heating part of the traditional plane structure is improved into semi-enclosed concave surface heating, and the heating area completely wraps the bottom of the steamer body, so that the heating area is large and the heating is more uniform.

2. The heating area of the traditional plane structure is not blocked when being heated, so that heat can be diffused all around, and energy is wasted. The heating area of the concave structure can gather the heat generated by electrifying the heating wire together, thereby improving the utilization rate of the heat. The steam is accelerated, so that the food materials are heated more uniformly, and the time of a user is saved.

3. The invention adopts the design of separating the pan from the heating area, is easier to clean compared with the traditional electric steamer and avoids the problem of circuit water inflow caused by cleaning.

4. The pot cover is provided with the exhaust valve for one-way exhaust, steam only can not enter the pot cover, and outside cold air can not generate heat exchange with the steam in the pot, so that the problem that the steam in the pot is condensed into water when meeting the situation is solved.

5. Compared with a plastic food steamer, the pot body and the food steamer made of ceramic materials are more resistant to high temperature, and harmful substances cannot be generated after long-time high-temperature heating. The stainless steel steamer can generate black or yellow marks after being heated for a long time, scratches are very easy to appear on the surface of the stainless steel steamer, and the appearance of the electric steamer is very ugly after being used for a long time. The pot body and the food steamer made of ceramic materials are easier to clean and maintain, and the surface of the pot body and the food steamer can not be changed after being heated at high temperature for a long time.

Drawings

Fig. 1 is a sectional view of a heat collecting ceramic steamer in the present invention.

Fig. 2 is a perspective view of a heat collecting ceramic steamer.

Fig. 3 is a top view of the product of fig. 2.

Fig. 4 is a bottom view of the product of fig. 2.

FIG. 5 is a schematic structural diagram of a ceramic food steamer.

The reference numbers in the figures are: 01 exhaust valve, 02 pot cover, 03 steamer, 04 sealing washer, 05 pot body, 06 microcrystalline glass heat conducting layer, 07 shell, 08 heat insulating ring, 09 heating wire, 10 heat insulating base plate, 11 support frame, 12 heat radiating fan, 13 groove, 14 temperature adjusting knob, 15 rubber pad, 16 heat radiating hole, 17 guiding gutter, 18 water outlet.

Detailed Description

The numbering of the components as such, for example "first", "second", etc., in this application is used solely to distinguish between the objects depicted and not to imply any order or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The following detailed description of embodiments of the invention refers to the accompanying drawings.

As shown in fig. 1 and 2, the heat collection type infrared heating steamer provided in this example comprises a steamer base, a steamer body 05, a steamer cover 02 and two baskets 03. The steamer base comprises a microcrystalline glass heat conduction layer 06 and a heat insulation chassis 10 which are arranged in a shell 07; the microcrystalline glass heat conducting layer 06 is integrally in a kettle shape and is connected with the shell 07 through the extended upper edge to form a base cavity together; the heat insulation chassis 10 in a semi-surrounding structure is positioned in the cavity of the base, and the upper surface of the heat insulation chassis is provided with an electric heating wire 09; the bottom of the microcrystalline glass heat conduction layer 06 is supported by a protruding part arranged on the surface of the heat insulation chassis 10, and keeps a distance with the electric heating wire 09; the pot body 05 is positioned in a kettle-shaped cavity formed by the microcrystalline glass heat conducting layer 06, and the pot body and the microcrystalline glass heat conducting layer are tightly attached; two food steamers 03 are arranged on the upper edge of the pot body 05; the pot cover 02 is arranged on the upper edge of the food steamer 03.

The upper surface of the heat insulation chassis 10 is provided with a groove which is in annular or Chinese character 'hui' layout; the heating wire 09 is embedded in the groove, two ends of the heating wire are connected to a temperature adjusting controller arranged in the cavity of the base through a lead, and the temperature adjusting controller is connected with a power socket through a lead. The lower surface of the heat insulation chassis 10 is provided with a plurality of heat dissipation holes and a thermocouple for detecting temperature, and the thermocouple is connected to a temperature adjustment controller through a lead. The protruding part for supporting the microcrystalline glass heat conducting layer has various forms, and can be selected as a heat insulating ring 08 or a plurality of heat insulating columns which are uniformly arranged at intervals; the protruding portion may be a separate component fixedly mounted to the insulating base plate 10 by screws, or may be an integral structure connected to the insulating base plate 10.

The bottom of the shell 07 is provided with a heat radiation fan 12 which is connected to the temperature adjusting controller through a lead. The heat insulation chassis 10 is not directly contacted with the shell 07, and a support frame 11 is arranged between the bottom of the shell 07 and the heat insulation chassis 10; the support frame 11 comprises a mounting screw, and a support spring is sleeved outside the screw.

The pan body 05 and the steamer 03 have conventional external shapes; the pot body 05 is provided with an upper edge extending outwards relative to the side wall, a groove or a step is arranged at the upper edge, a sealing washer 04 is arranged in the groove or the step, and the outer edge of the bottom of the steamer 03 is located in the groove or the step. The side wall of the steamer 03 is provided with a handle, the bottom surface is provided with a diversion trench 17, and a drainage outlet 18 is arranged in the diversion trench 17. A groove or a step is arranged at the upper edge of the steamer 03, a sealing gasket 04 is arranged in the groove or the step, and the outer edge of the bottom of the pot cover 02 is located in the groove or the step. The cooker cover 02 is provided with a handle and an exhaust valve 01 capable of exhausting gas in a single direction, and the weight of the cooker cover 02 is larger than the maximum steam lifting force generated by the steamer under the condition of the maximum heating power. Magnets matched with each other are arranged in the pot body 05 and the microcrystalline glass heat conduction layer 06. The shell 07 is provided with a temperature adjusting knob 14 and a power socket which are respectively connected to a temperature adjusting controller arranged in the cavity of the base through wires. The bottom of the housing 07 is provided with heat dissipation holes 16 and a rubber pad 15 for supporting.

More detailed description is as follows:

an exhaust valve 01 on the pot cover 02 is used for ensuring the pressure balance inside the steamer 03. The exhaust valve 01 is used for one-way exhaust, and only one-way exhaust is realized when the steam is excessive, so that the steam cannot flow back to the interior of the steamer due to condensation of outside cold air. The pot cover 02 is thick, and the problem of unstable placement is overcome by means of weight. In addition, the internal environment of the pressure cooker can be simulated, the pressure in the steamer 03 is slightly larger than the pressure outside the cooker, and the steam temperature can be improved to a small extent. The sealing washer 04 can ensure that steam can longitudinally circulate when the food steamer 03 is stacked, and the utilization efficiency of steam heat is improved. The edge of the pot body 05 is provided with a groove or a step, so that a small amount of condensed water condensed at the edge of the steamer 03 can be collected. The steam box 03 is internally provided with the diversion trench 17, and water drops condensed by steam can flow to the water outlet 18 through the diversion trench, so that the phenomenon that the appearance and the taste of food are influenced by the condensed water dropped on the food is avoided.

The upper edge extending part of the microcrystalline glass heat conducting layer 06 and the upper inward bending part of the shell 07 are bonded together through high-temperature resistant glass cement. The upper edge of the outer side of the shell 07 is of a triangular reinforced structure and is very stable. The bottom of the casing 07 is designed with heat dissipation holes 16, and the heat at the bottom of the heating area is dissipated by the heat dissipation fan 12 installed on the casing 07, so as to prevent the service life of the circuit from being affected by the overhigh internal temperature of the cavity of the base. Three conical rubber pads 15 are uniformly embedded in the bottom of the shell 07 at equal intervals, so that the friction force between the steamer and the table top is increased. The heat insulation ring 08 provides support for the microcrystalline glass heat conduction layer 06, so that the microcrystalline glass heat conduction layer is guaranteed not to be contacted with the heating wire 10, and the shell 07 is prevented from being deformed due to overlarge load.

The heating wire 09 can be a nickel-chromium wire which has high strength at high temperature and can be cooled down after long-term use, the material cannot become brittle, and the emissivity of the fully oxidized nickel-chromium alloy is higher than that of the iron-chromium-aluminum alloy. The nickel-chromium wire has no magnetism and better corrosion resistance. The bottom of the heat insulation chassis 10 is provided with a conical exhaust hole, and as the heating wire 09 is directly embedded in the heat insulation chassis 10, the high temperature generated during electrification can cause the heat insulation chassis 10 to expand due to heating, so that the heating wire is separated, and potential safety hazards are caused. In order to solve the problem, the bottom of the heat insulation chassis is provided with the conical heat dissipation hole, the conical structure can quickly dissipate heat, and then the heat in the cavity of the base is quickly dissipated by the heat dissipation fan 12. The support 11 is used to fix the insulating base plate 10, so that the insulating base plate 10 is located at the center of the housing 07. The heat insulation chassis 10 does not directly contact the shell 07, so that the shell 07 is ensured not to scald a user due to high temperature.

Claims

1. A heat collection type infrared heating steamer is characterized by comprising:

the steamer base comprises a microcrystalline glass heat conduction layer and a heat insulation base plate which are arranged in the shell; the whole microcrystalline glass heat conducting layer is in a kettle shape and is connected with the shell through the extended upper edge to form a base cavity together; the heat insulation chassis in a semi-surrounding structure is positioned in the cavity of the base, and the upper surface of the heat insulation chassis is distributed with electric heating wires; the bottom of the microcrystalline glass heat conduction layer is supported by a protruding part arranged on the surface of the heat insulation chassis and keeps a distance with the electric heating wire;

the pot body is positioned in the kettle-shaped cavity formed by the microcrystalline glass heat-conducting layer, and the pot body and the microcrystalline glass heat-conducting layer are tightly attached;

at least one food steamer is arranged on the upper edge of the pot body;

the pot cover is arranged on the upper edge of the steamer.

2. The steamer as claimed in claim 1, wherein the upper surface of the heat insulation chassis is provided with a groove which is arranged in a ring shape or a Chinese character hui shape; the electric heating wire is embedded in the groove, two ends of the electric heating wire are connected to a temperature adjusting controller arranged in the cavity of the base through a lead, and the temperature adjusting controller is connected with a power socket through a lead.

3. The steamer as claimed in claim 1, wherein the heat insulating base plate has a plurality of heat dissipating holes on its lower surface, and a thermocouple for detecting temperature, the thermocouple is connected to a temperature controller disposed in the cavity of the base plate through a wire.

4. The steamer as claimed in claim 1, wherein the protruding part of the supporting microcrystalline glass heat conducting layer is a heat insulating ring or a plurality of heat insulating columns which are uniformly arranged at intervals; the protruding part is a separate part fixedly arranged on the heat insulation chassis by a screw or is an integrated structure connected with the heat insulation chassis.

5. The steamer as claimed in claim 1, wherein the bottom of the casing is provided with a heat dissipation fan connected to a temperature controller disposed in the cavity of the base through a wire.

6. The steamer as set forth in claim 1 wherein the heat insulating base is not in direct contact with the casing, and a support frame is provided between the bottom of the casing and the heat insulating base; the support frame comprises a mounting screw, and a support spring is sleeved on the outer side of the screw.

7. The steamer as claimed in claim 1, wherein the body has an upper edge extending outwardly relative to the side wall, the upper edge having a groove or step in which the outer edge of the bottom of the steamer sits; a groove or a step is arranged at the upper edge of the food steamer, and the outer edge of the bottom of the pot cover is located in the groove or the step.

8. The steamer as set forth in claim 7 wherein a sealing gasket is provided in the groove or step; or the pot body and the microcrystalline glass heat conduction layer are internally provided with magnets matched with each other; or the shell is provided with a temperature adjusting knob and a power socket which are respectively connected to a temperature adjusting controller arranged in the cavity of the base through wires; or the bottom of the food steamer is provided with a diversion trench, and a water outlet is arranged in the diversion trench.

9. The steamer as claimed in claim 1, wherein the lid is provided with a handle and a vent valve capable of one-way venting, and the weight of the lid is greater than the maximum steam lifting force generated by the steamer under the condition of maximum heating power.

10. The steamer as claimed in any one of claims 1 to 9, wherein the body and the basket are ceramic and have the external shape of a conventional body and basket; the number of the food steamer is at least 2, and the side wall of the food steamer is provided with a handle.