CN109044081B - Heating container and electric cooker - Google Patents
Heating container and electric cooker Download PDFInfo
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- CN109044081B CN109044081B CN201811141739.9A CN201811141739A CN109044081B CN 109044081 B CN109044081 B CN 109044081B CN 201811141739 A CN201811141739 A CN 201811141739A CN 109044081 B CN109044081 B CN 109044081B
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- heating
- heat
- heat conduction
- extrusion cylinder
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/004—Cooking-vessels with integral electrical heating means
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/36—Shields or jackets for cooking utensils minimising the radiation of heat, fastened or movably mounted
Abstract
The invention discloses a heating container, comprising: the inner container is provided with an accommodating cavity which is used for accommodating a substance to be heated and is provided with an opening; heat conduction casing, its cover is established the inner bag is outside, the inner bag with the top sealing-in of heat conduction casing forms the heating chamber, the heating intracavity is equipped with the imbibition core that holds phase transition heat conduction material, the heat conduction casing is heated extremely when phase transition heat conduction material reaches operating temperature, phase transition heat conduction material takes place the phase transition and emits the heat in order to heat the inner bag. The invention also discloses an electric cooker with the heating container. The invention adopts a brand new technical route, does not use an IH heating mode, realizes the surrounding uniform heating of the whole inner container, and has the characteristics of simple structure, cost saving, high safety level and no electromagnetic radiation.
Description
Technical Field
The invention relates to the field of electrical appliances. More particularly, the present invention relates to a heating container and an electric rice cooker.
Background
The heating mode of traditional electric rice cooker is the heating plate heating, and its principle is through the heating plate with heat conduction to inner bag bottom, then by the inner bag again with heat transfer to eat the material, this kind of heating mode low in production cost, the control degree of difficulty is little, nevertheless heats inhomogeneously, can not carry out accurate control by temperature change, this also is the very obvious drawback of this kind of heating mode. IH (electromagnetic heating) technique then has improved this kind of drawback, relies on the magnetic line of force to pierce through the pot body and heats, and its theory of operation is through solenoid switch-on alternating current, directly heats metal inner bag, has crossed the heat conduction process of heating plate, and the intensification is rapid, and a lot of high-end IH electricity rice cookers introduce multistage coil moreover, has realized the heating of encircleing to whole inner bag, has realized even heating. But the IH electric cooker technology has the defects: 1. the IH technology increases the cost of the electric cooker, and the price is increased to the range of 1000-; 2. electromagnetic radiation exists in IH electric heating, high-frequency current used by the electromagnetic heating has the frequency of 15-20kHz, and when the IH electric heating is used at high power, the IH electric heating still has the electromagnetic radiation and is unfavorable for pregnant women, children and other crowds; 3. in order to keep the temperature of the IH electric cooker, an inner container (kettle) with large wall thickness and weight is generally adopted, so that the cost and the weight are increased; 4. when the heating temperature is too high, the IH electric cooker has no other safety measures except for alarming. Therefore, there is a need for a light, low-cost and high-efficiency safety electric rice cooker.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
Still another object of the present invention is to provide a heating container, which uses a new technical route, does not use IH heating manner, realizes uniform heating of the entire inner container, and has the characteristics of simple structure, cost saving, high safety level, and no electromagnetic radiation.
Still another object of the present invention is to provide an electric rice cooker which can realize precise program control of rice stewing process, and can set different heating schemes according to the needs of each heating stage of rice, so that the taste and nutrient content of rice can be improved to unprecedented levels.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a heating container comprising:
the inner container is provided with an accommodating cavity which is used for accommodating a substance to be heated and is provided with an opening;
heat conduction casing, its cover is established the inner bag is outside, the inner bag with the top sealing-in of heat conduction casing forms the heating chamber, the heating intracavity is equipped with the imbibition core that holds phase transition heat conduction material, before the heat conduction casing is heated, the heating chamber is vacuum environment, the heat conduction casing is heated extremely when phase transition heat conduction material reaches operating temperature, phase transition heat conduction material takes place the phase transition and emits the heat in order to heat the inner bag.
Preferably, the method further comprises the following steps:
the heat-insulating shell is sleeved on the outer side wall of the heat-conducting shell, the heat-conducting shell is sealed with the top of the heat-insulating shell to form an annular heat-insulating cavity, and the heat-insulating cavity is in a vacuum environment.
Preferably, the method further comprises the following steps: a keel frame disposed within the heating cavity.
Preferably, be equipped with on the heat conduction casing and link up the heating chamber with the first through-hole in thermal-insulated chamber, still fixedly connected with valve block on the heat conduction casing, the valve block covers the edge of first through-hole, the valve block sets up to: and when the pressure of the heating cavity reaches a threshold value, the valve plate is broken, and the heating cavity is communicated with the heat insulation cavity.
Preferably, the valve plate is made of the same material as the heat-conducting shell, and the thickness of the valve plate is smaller than that of the heat-conducting shell.
Preferably, the thermal insulation device further comprises a protection device arranged inside the thermal insulation cavity, wherein the protection device comprises:
the extrusion cylinder is of a hollow cylindrical structure, the extrusion cylinder and the first through hole are coaxially arranged, one end of the extrusion cylinder is connected to the inner wall of the heat insulation shell through a pressure spring, the other end of the extrusion cylinder abuts against the first through hole when the pressure spring naturally extends, the outer diameter of the other end of the extrusion cylinder is larger than the inner diameter of the first through hole and larger than the inner diameter of the other end of the extrusion cylinder, the outer wall of the extrusion cylinder is radially recessed to form two annular grooves, the two annular grooves are sequentially arranged from the other end of the extrusion cylinder to one end of the extrusion cylinder, two sealing rings are arranged on the outer wall of the extrusion cylinder in a protruding mode at the positions where the two annular grooves are not arranged, and the two sealing rings are respectively located on the downstream of the two annular grooves from the other end of;
the protection barrel is of a hollow barrel-shaped structure, the protection barrel and the first through hole are coaxially arranged, two ends of the protection barrel are fixedly connected with the heat conduction shell and the heat insulation shell respectively, the inner diameter of the protection barrel is larger than the outer diameter of the extrusion barrel, the inner wall of the protection barrel protrudes in the radial direction to form two annular bulges, the two annular bulges are sequentially arranged from the other end of the extrusion barrel to one end of the extrusion barrel, the middle part of the protection barrel is provided with a plurality of second through holes in the radial direction, and the plurality of second through holes are positioned between the two annular bulges;
the leading truck, its setting is in the recipient with between the fender section of thick bamboo, the stiff end of leading truck is fixed on the inner wall of fender section of thick bamboo, be located two annular groove middle departments, the expansion end of leading truck is the loop configuration, and the cover is established on the outer wall of recipient, be located two annular arch middle departments, the leading truck sets up: when the pressure spring is compressed to the limit, one annular bulge close to the other end of the extrusion cylinder abuts against one end face of the movable end of the guide frame, and when the pressure spring naturally extends, the other annular bulge close to one end of the extrusion cylinder abuts against the other end face of the movable end of the guide frame;
wherein, two sealing washer sets up to: when the pressure of the heating cavity is lower than a threshold value, the two sealing rings are respectively sealed with the two annular protrusions, when the pressure of the heating cavity reaches the threshold value, the valve plate is broken, the heating cavity forms an airflow channel from inside to outside, the extrusion cylinder moves along the airflow direction, and the two sealing rings are dislocated and separated from the two annular protrusions.
Preferably, the interior of the extrusion container is of a spiral passage structure.
An electric cooker comprises an electric heating element and a heating container, wherein the electric heating element is in contact with the heating container so as to enable a phase-change heat conduction material to reach a working temperature to heat an inner container.
The invention at least comprises the following beneficial effects:
firstly, the phase-change heat conduction material and the liquid absorption core are arranged in the closed heating cavity, when the heat conduction shell is heated, heat is transferred to the liquid absorption core from the heat conduction shell, the phase-change heat conduction material is filled in the heating cavity, so that the heat is uniformly transferred to the inner container, rice waiting for heating substances in the containing cavity is sufficiently heated by the inner container, the heat insulation cavity can perform heat insulation and preservation effects on the heating cavity, the heat leakage is greatly reduced, and the heating and heat preservation effects of the rice in the containing cavity are guaranteed; the valve block is arranged so that the valve block is impacted by air pressure to be broken when the temperature of the heating cavity is overhigh, the pressure is transferred from the heating cavity to the heat insulation cavity, the safety performance is greatly improved, the electric cooker with the structure also has the characteristics of uniform heating, high firepower, temperature control and the like without using an IH heating technology, and the heating container has good heat insulation property due to the closed environment of the heating cavity, so that the inner container structure of the traditional electric cooker is greatly simplified, the cost of a high-end electric cooker is reduced, and the electric cooker has the characteristics of simple structure, cost saving, full and uniform heating, good heat insulation performance and no electromagnetic radiation;
secondly, the first through hole, the extruding cylinder and the protecting cylinder are coaxially arranged to ensure that when the air pressure of the heating cavity rises to exceed a safety threshold value, the air flow overflows to avoid causing the displacement of the protecting device, the extruding cylinder abuts against the first through hole when the pressure spring naturally extends, the end surface of the extruding cylinder is partially overlapped with the first through hole to ensure that the air flow pushes the extruding cylinder to horizontally displace, the annular groove widens the air flow path to quickly transfer the pressure, two sealing rings are sleeved at the thick wall part of the extruding cylinder and are matched with the thick wall part of the protecting cylinder to form an obstacle of the air flow path when in contact, the air flow path is formed when in dislocation, the extruding cylinder is guided by the guide frame to keep horizontal reciprocating motion under the action of the elastic force of the air flow and the pressure spring, the extruding cylinder moves to two limit parts and abuts against the guide frame respectively to provide stable supporting force for the extruding cylinder, the airflow is switched between the passage and the disconnection and the passage, the horizontal airflow is converted into airflow along the circumferential direction, and the impact of the excessive pressure of the airflow on the heat insulation shell is reduced;
thirdly, the spiral passage leads the airflow of the valve plate to be guided to the outlet from the inlet of the extrusion container at the moment of fracture (at the moment that the extrusion container and the first through hole do not generate relative displacement), the airflow pressure is released by a one-way roundabout path, and the impact of the airflow on the heat insulation shell is reduced when the airflow reaches the outlet, so that the valve plate is safer; rice and water to be heated are contained in the containing cavity of the inner container, after the heating container is heated, the phase-change heat conduction material in the liquid suction core is subjected to phase change and releases heat, the inner container is heated, meanwhile, the pressure of the heating cavity is rapidly increased, if the pressure is increased too high and exceeds a preset pressure threshold value, the valve block is broken due to brittleness, the air flow rapidly enters the heat insulation cavity from the heating cavity, the end face of the extrusion cylinder is contacted with the air flow and is pushed to move rightwards, the first entering air flow enters the extrusion cylinder and then leaves from the end face close to the pressure spring to the second through hole, the end face of the extrusion cylinder is separated from the heat conduction shell, the two sealing rings are dislocated and separated from the inner wall of the protection cylinder, the subsequent entering air flow forms a branch path and respectively enters the spaces between the two ends of the extrusion cylinder and the protection cylinder and then leaves from the second through hole, the air flow pushes the, the two sealing rings are in sealing contact with the inner wall of the protective barrel again, the airflow applies pressure to the extrusion barrel again to enable the extrusion barrel to move in the opposite direction, and the extrusion barrel absorbs energy and transfers the airflow in stages in the reciprocating process to overflow from the second through hole.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a cross-sectional view of one embodiment of the present invention;
FIG. 3 is a cross-sectional view of one embodiment of the present invention;
FIG. 4 is a schematic structural diagram of the keel frame of the invention;
fig. 5 is a schematic view of a state of a protection device according to an embodiment of the present invention;
fig. 6 is another state diagram of a protection device according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a container according to an embodiment of the present invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1-2, the present invention provides a heating container comprising:
the inner container 100 is provided with an accommodating cavity 110 which is used for accommodating a substance to be heated and is provided with an opening, the shape of the inner container 100 is preferably a cylindrical structure, the bottom of the inner container 100 is in arc chamfer transition, and the bottom and the side surfaces of rice in the accommodating cavity 110 can be conveniently and fully heated without dead angles;
the heat conduction shell 200 is preferably made of metal material with good heat conduction performance, heat can be quickly transmitted to the liquid absorption core 220 in the heating cavity 210 when being heated, the shape of the heat conduction shell 200 is preferably an open cylindrical structure, the shape of a section plane along the central axis direction of the heating cavity 210 is U-shaped, the bottom and the side surface of the containing cavity 110 can be simultaneously heated, the requirement for fully heating rice is met, the bottom of the heat conduction shell 200 is in arc chamfer transition, so that the bottom and the side surface of the rice in the containing cavity 110 can be fully heated without dead angles, the heat conduction shell is sleeved outside the inner container 100 and conforms to the use form of the inner container 100 of the traditional electric rice cooker, the inner container 100 and the top of the heat conduction shell 200 are sealed to form the heating cavity 210, the sealing can adopt an integrated forming process and can also be independently welded with an annular sealing plate, the liquid absorption core 220 containing a, the phase-change heat conduction material is a heat enhancement polymer in the prior art, the process of changing from liquid to gas or from gas to liquid is called as a phase-change process, at this time, the phase-change material absorbs or releases a large amount of latent heat, the position of the wick 220 is that at least one part of the wick is in contact with the bottom of the heating cavity 210 and is tightly attached to the inner wall of the heat conduction shell 200, when the bottom of the heat conduction shell 200 is heated, the phase-change heat conduction material in the heat absorption core can be rapidly heated and changed into gas, the position of the wick 220 is preferably tiled at the bottom of the heating cavity 210, because the phase-change heat conduction material is in liquid or solid (preferably liquid) and is centralized in the wick 220 when the phase-change heat conduction material is not heated, the wick 220 can be directly heated by heating in the tiled mode, so that, the heat conduction casing 200 is heated to when the phase change heat conduction material reaches operating temperature, the phase change heat conduction material takes place the phase transition and releases the heat in order to heat the inner bag 100, before the heat conduction casing 200 is heated, the heating chamber 210 is vacuum environment, makes heat-conduction faster, more even, and phase change heat conduction material alright turn into the gaseous state under the lower temperature simultaneously.
In the above technical solution, the phase change heat conduction material and the wick 220 are disposed in the closed heating cavity 210, when the heat conduction housing 200 is heated, heat is transferred from the heat conduction housing 200 to the wick 220, and the phase change heat conduction material fills the heating cavity 210, so that the heat is uniformly transferred to the inner container 100, and the rice to be heated in the accommodating cavity 110 is sufficiently heated by the inner container 100.
In another technical solution, as shown in fig. 3, the method further includes: the heat insulation shell 300 is preferably made of a metal material with good heat conduction performance, heat can be rapidly transmitted to the heat conduction shell 200 when being heated, the shape of the heat insulation shell 300 is preferably of an annular structure, the bottom of the heat insulation shell 300 is in arc chamfer transition and is fixedly connected to the periphery of the bottom of the heat conduction shell 200 and does not contact with the bottom of the heat conduction shell 200, so that the bottom of the heat conduction shell 200 is directly contacted with the electric heating element 800 and is sleeved on the outer side wall of the heat conduction shell 200, the heat conduction shell 200 and the top of the heat insulation shell 300 are sealed to form an annular heat insulation cavity 310, the sealing can adopt an integrally formed process and can also be welded with an annular sealing plate independently, the heat insulation cavity 310 is in a vacuum environment and. The heat insulation cavity 310 can perform heat insulation and preservation functions on the heating cavity 210, so that the leakage of heat is greatly reduced, and the heating and heat preservation effects of rice in the accommodating cavity 110 are guaranteed.
In another technical solution, as shown in fig. 4, the method further includes: a keel frame 230 disposed inside the heating cavity 210. Preferably, the shape of fig. 4 is provided at the side and bottom of the heating chamber 210, and the inner container 100 is supported in all directions so as not to be displaced with respect to the heat conductive housing 200, thereby forming a stable integrated structure.
In another technical scheme, be equipped with on the heat conduction casing 200 and link up the heating chamber 210 with the first through-hole 240 in thermal-insulated chamber 310, still fixedly connected with valve block 400 on the heat conduction casing 200, valve block 400 can adopt the material the same with heat conduction casing 200, and thickness slightly is lighter than the thickness of heat conduction casing 200 this moment, and perhaps, valve block 400 adopts and is compared in the bigger material of heat conduction casing 200 fragility, and thickness does not make the requirement, valve block 400 covers the edge of first through-hole 240 can adopt the form of brazing, valve block 400 sets up to: when the pressure in the heating cavity 210 reaches a threshold value, the valve sheet 400 is broken due to the brittle property or small thickness of the material, and the heating cavity 210 is communicated with the heat insulation cavity 310. The setting of valve block 400 is convenient for atmospheric pressure impact valve block 400 to the fracture when heating chamber 210 high temperature, shifts pressure to thermal-insulated chamber 310 by heating chamber 210, and the security performance improves by a wide margin.
In another technical scheme, the valve plate 400 is made of the same material as the heat conducting shell 200, so that the production and welding are facilitated, the thickness of the valve plate 400 is smaller than that of the heat conducting shell 200, and as long as the pressure of the heating cavity 210 rises to a threshold value, the thickness of the valve plate 400 is small and exceeds the pressure bearing capacity of the valve plate 400, and the valve plate 400 is broken.
In another embodiment, when the temperature of the heating chamber 210 rises to a level that the air pressure is too high to exceed the load, explosion may occur, and the timely unloading of the excess pressure can effectively avoid such an event, as shown in fig. 5 to 6, the apparatus further includes a protection device disposed inside the thermal insulation chamber 310, and the protection device includes:
the extrusion cylinder 500 is of a hollow cylindrical structure, the extrusion cylinder 500 is coaxially arranged with the first through hole 240, one end of the extrusion cylinder 500 is connected to the inner wall of the heat insulation shell 300 through a pressure spring 510, the other end of the extrusion cylinder 500 abuts against the first through hole 240 when the pressure spring 510 naturally extends, the outer diameter of the other end of the extrusion cylinder 500 is larger than the diameter of the first through hole 240 and larger than the inner diameter of the other end of the extrusion cylinder 500, the outer wall of the extrusion cylinder 500 is radially recessed to form two annular grooves 520, the two annular grooves 520 are sequentially arranged from the other end to one end of the extrusion cylinder 500, the two annular grooves 520 are not arranged on the outer wall of the extrusion cylinder 500, and two sealing rings 530 are respectively arranged on the downstream of the two annular grooves 520 from the other end to one end of the extrusion cylinder 500;
the protection barrel 600 is a hollow barrel-shaped structure, the protection barrel 600 is coaxially arranged with the first through hole 240, two ends of the protection barrel 600 are fixedly connected with the heat conduction shell 200 and the heat insulation shell 300 respectively, the inner diameter of the protection barrel 600 is larger than the outer diameter of the extrusion barrel 500, the inner wall of the protection barrel 600 protrudes in the radial direction to form two annular protrusions 610, the two annular protrusions 610 are sequentially arranged from the other end to one end of the extrusion barrel 500, the middle part of the protection barrel 600 is provided with a plurality of second through holes 620 in the radial direction, and the plurality of second through holes 620 are located between the two annular protrusions 610;
guide frame 700, its setting is in recipient 500 with between the protection tube 600, the stiff end of guide frame 700 is fixed on the inner wall of protection tube 600, be located two annular groove 520 middle departments, the expansion end of guide frame 700 is the loop configuration, and the cover is established on the outer wall of recipient 500, be located two annular bulge 610 middle departments, guide frame 700 sets up to: when the compression spring 510 is compressed to the limit, one annular protrusion 610 close to the other end of the extrusion container 500 abuts against one end face of the movable end of the guide frame 700, and when the compression spring 510 naturally extends, the other annular protrusion 610 close to one end of the extrusion container 500 abuts against the other end face of the movable end of the guide frame 700;
wherein, two sealing rings 530 set up as: when the pressure in the heating cavity 210 is lower than a threshold value, the two sealing rings 530 are respectively sealed with the two annular protrusions 610, when the pressure in the heating cavity 210 reaches the threshold value, the valve plate 400 is broken, the heating cavity 210 forms an air flow passage from inside to outside, the extrusion cylinder 500 moves along the air flow direction, and the two sealing rings 530 are dislocated and separated from the two annular protrusions 610.
In the above technical solution, the first through hole 240, the extrusion cylinder 500, and the protection cylinder 600 are coaxially arranged to ensure that when the temperature of the heating chamber 210 rises to a pressure exceeding a safety threshold, the airflow overflows and does not cause displacement of the protection device, when the pressure spring 510 naturally extends, the extrusion cylinder 500 abuts against the first through hole 240, the end surface of the extrusion cylinder 500 partially overlaps with the first through hole 240, so that the airflow pushes the extrusion cylinder 500 to horizontally displace, the annular groove 520 widens the airflow path, and can rapidly transfer the pressure, the two sealing rings 530 are sleeved on the thicker wall of the extrusion cylinder 500, and are matched with the thicker wall of the protection cylinder 600, and form an obstacle of the airflow path when in contact, and form an airflow path when in dislocation, the guide frame 700 guides the extrusion cylinder 500 to keep horizontal reciprocating motion under the action of the elastic force of the airflow-pressure spring 510, the extrusion cylinder 500 moves to two limits and abuts against the guide frame, the extrusion container 500 is firmly supported, and the horizontal reciprocating motion of the extrusion container 500 is further ensured, the air flow is switched between the on-off-on state, the horizontal air flow is converted into the air flow along the circumferential direction, and the impact of the excessive air flow pressure on the heat insulation shell 300 is reduced.
In practical operation, rice and water to be heated are contained in the containing cavity 110 of the inner container 100, after the heating container is heated, the phase-change heat conduction material in the wick 220 changes phase and releases heat, the inner container 100 is heated, meanwhile, the pressure of the heating cavity 210 is rapidly increased, if the pressure is increased too high and exceeds a preset pressure threshold, the valve plate 400 is broken due to brittleness, airflow rapidly enters the heat insulation cavity 310 from the heating cavity 210, the end surface of the extrusion cylinder 500 is contacted with the airflow and is pushed to move rightwards, the first entering airflow enters the extrusion cylinder 500 and then leaves from the end surface close to the pressure spring 510 to the second through hole 620, the end surface of the extrusion cylinder 500 is separated from the heat conduction shell 200, the two sealing rings 530 are dislocated and separated from the inner wall of the protection cylinder 600, the subsequent entering airflow forms branches, respectively enters the two ends of the extrusion cylinder 500 and the space of the protection cylinder 600 and then leaves from the second, the air flow pushes the extrusion container 500 to compress the compression spring 510, the compression spring 510 applies pressure to the extrusion container 500 to enable the extrusion container 500 to move in the opposite direction, the two sealing rings 530 are in sealing contact with the inner wall of the protection container 600 again, the air flow applies pressure to the extrusion container 500 again to enable the extrusion container 500 to move in the opposite direction, and the extrusion container 500 absorbs energy and transfers the air flow in stages during reciprocating movement and overflows from the second through hole 620.
In another solution, as shown in fig. 7, the container 500 has a spiral passage structure inside. The spiral passage enables the air flow of the valve plate 400 to be guided to the outlet from the inlet of the extrusion container 500 at the moment of fracture (at the moment when the extrusion container 500 and the first through hole 240 do not generate relative displacement), the air flow pressure is released by the one-way circuitous path, and the impact on the heat insulation shell 300 when the air flow reaches the outlet is reduced, so that the valve plate is safer.
An electric cooker comprises an electric heating element 800 and a heating container in any one of the above technical solutions, wherein the electric heating element 800 is in contact with the heating container so that the phase-change heat conduction material reaches a working temperature to heat the inner container 100. The electric cooker with the structure has the advantages that the characteristics of uniform heating, large firepower, temperature control and the like are obtained under the condition that the IH heating technology is not used, the heating container has good heat preservation characteristics due to the closed environment of the heating cavity 210, the structure of the inner container 100 of the traditional electric cooker is greatly simplified, the cost of the high-end electric cooker is reduced, and the electric cooker has the advantages of being simple in structure, saving in cost, full and uniform in heating, good in heat preservation performance and free of electromagnetic radiation.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (4)
1. A heating vessel, comprising:
the inner container is provided with an accommodating cavity which is used for accommodating a substance to be heated and is provided with an opening;
the heat conduction shell is sleeved outside the inner container, the inner container and the top of the heat conduction shell are sealed to form a heating cavity, a liquid absorption core containing a phase-change heat conduction material is arranged in the heating cavity, the heating cavity is in a vacuum environment before the heat conduction shell is heated, and when the heat conduction shell is heated until the phase-change heat conduction material reaches a working temperature, the phase-change heat conduction material generates phase change and releases heat to heat the inner container;
the heat-insulating shell is sleeved on the outer side wall of the heat-conducting shell, the heat-conducting shell and the top of the heat-insulating shell are sealed to form an annular heat-insulating cavity, and the heat-insulating cavity is in a vacuum environment;
be equipped with on the heat conduction casing and link up the heating chamber with the first through-hole in thermal-insulated chamber, go back fixedly connected with valve block on the heat conduction casing, the valve block covers the edge of first through-hole, the valve block sets up to: when the pressure of the heating cavity reaches a threshold value, the valve plate is broken, and the heating cavity is communicated with the heat insulation cavity;
a protection device disposed inside the insulated chamber, the protection device comprising:
the extrusion cylinder is of a hollow cylindrical structure, the extrusion cylinder and the first through hole are coaxially arranged, one end of the extrusion cylinder is connected to the inner wall of the heat insulation shell through a pressure spring, the other end of the extrusion cylinder abuts against the first through hole when the pressure spring naturally extends, the outer diameter of the other end of the extrusion cylinder is larger than the inner diameter of the first through hole and larger than the inner diameter of the other end of the extrusion cylinder, the outer wall of the extrusion cylinder is radially recessed to form two annular grooves, the two annular grooves are sequentially arranged from the other end of the extrusion cylinder to one end of the extrusion cylinder, two sealing rings are arranged on the outer wall of the extrusion cylinder in a protruding mode at the positions where the two annular grooves are not arranged, and the two sealing rings are respectively located on the downstream of the two annular grooves from the other end of;
the protection barrel is of a hollow barrel-shaped structure, the protection barrel and the first through hole are coaxially arranged, two ends of the protection barrel are fixedly connected with the heat conduction shell and the heat insulation shell respectively, the inner diameter of the protection barrel is larger than the outer diameter of the extrusion barrel, the inner wall of the protection barrel protrudes in the radial direction to form two annular bulges, the two annular bulges are sequentially arranged from the other end of the extrusion barrel to one end of the extrusion barrel, the middle part of the protection barrel is provided with a plurality of second through holes in the radial direction, and the plurality of second through holes are positioned between the two annular bulges;
the leading truck, its setting is in the recipient with between the fender section of thick bamboo, the stiff end of leading truck is fixed on the inner wall of fender section of thick bamboo, be located two annular groove middle departments, the expansion end of leading truck is the loop configuration, and the cover is established on the outer wall of recipient, be located two annular arch middle departments, the leading truck sets up: when the pressure spring is compressed to the limit, one annular bulge close to the other end of the extrusion cylinder abuts against one end face of the movable end of the guide frame, and when the pressure spring naturally extends, the other annular bulge close to one end of the extrusion cylinder abuts against the other end face of the movable end of the guide frame;
wherein, two sealing washer sets up to: when the pressure of the heating cavity is lower than a threshold value, the two sealing rings are respectively sealed with the two annular bulges, when the pressure of the heating cavity reaches the threshold value, the valve plate is broken, the heating cavity forms an airflow channel from inside to outside, the extrusion cylinder moves along the airflow direction, and the two sealing rings are dislocated and separated from the two annular bulges; a keel frame disposed within the heating cavity.
2. The heating container as claimed in claim 1, wherein the valve plate is made of the same material as the heat conductive casing, and the thickness of the valve plate is smaller than that of the heat conductive casing.
3. The heating vessel of claim 1 wherein said container interior is a helical path structure.
4. An electric rice cooker comprising an electric heating element and the heating container of claim 1, wherein the electric heating element is in contact with the heating container so that the phase change heat conductive material reaches an operating temperature to heat the inner container.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811141739.9A CN109044081B (en) | 2018-09-28 | 2018-09-28 | Heating container and electric cooker |
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| CN201811141739.9A CN109044081B (en) | 2018-09-28 | 2018-09-28 | Heating container and electric cooker |
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| CN109044081B true CN109044081B (en) | 2021-04-09 |
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| CN111374524B (en) * | 2018-12-29 | 2021-06-11 | 苏州加益不锈钢制品有限公司 | Anti-sticking stainless steel pot |
| CN209899073U (en) * | 2019-04-07 | 2020-01-07 | 李院生 | Double-layer heat-insulating pot with drum-shaped heat-insulating ring and pressure relief mechanism |
| CN112674614B (en) * | 2019-10-18 | 2022-12-09 | 广东美的白色家电技术创新中心有限公司 | Cooking utensil |
| CN116678914B (en) * | 2023-07-31 | 2023-10-20 | 河南机电职业学院 | Device and method for testing thermal stability of phase change material for building |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB0117741D0 (en) * | 2001-07-20 | 2001-09-12 | Thermotic Dev Ltd | Heating of products |
| CN201602615U (en) * | 2009-12-31 | 2010-10-13 | 谭均平 | Electric kettle |
| CN201602599U (en) * | 2009-12-31 | 2010-10-13 | 谭均平 | Inner pot of heating kettle |
| CN205306778U (en) * | 2016-01-22 | 2016-06-15 | 浙江苏泊尔家电制造有限公司 | A interior pot and cooking utensil for cooking utensil |
| CN205729026U (en) * | 2016-01-22 | 2016-11-30 | 浙江苏泊尔家电制造有限公司 | Interior pot and cooking apparatus for cooking apparatus |
| CN205625567U (en) * | 2016-03-01 | 2016-10-12 | 佛山市顺德区美的电热电器制造有限公司 | Cooking utensil |
| CN206543122U (en) * | 2016-05-20 | 2017-10-10 | 佛山市顺德区美的电热电器制造有限公司 | A kind of samming pot of double-decker |
| CN107647764A (en) * | 2016-07-26 | 2018-02-02 | 浙江苏泊尔家电制造有限公司 | Heater and cooking apparatus |
| CN108113454B (en) * | 2016-11-30 | 2021-01-12 | 佛山市顺德区美的电热电器制造有限公司 | High-thermal-conductivity temperature equalizing pot |
| CN206507765U (en) * | 2016-12-08 | 2017-09-22 | 浙江苏泊尔家电制造有限公司 | Interior pot |
| CN209610788U (en) * | 2018-09-28 | 2019-11-12 | 李子京 | Heat container and electric cooker |
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