CN109171447B - Inner container structure of uniform temperature type electric cooker - Google Patents
Inner container structure of uniform temperature type electric cooker Download PDFInfo
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- CN109171447B CN109171447B CN201811371996.1A CN201811371996A CN109171447B CN 109171447 B CN109171447 B CN 109171447B CN 201811371996 A CN201811371996 A CN 201811371996A CN 109171447 B CN109171447 B CN 109171447B
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- heat insulation
- cavity
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- liner
- shell
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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
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for 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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Cookers (AREA)
Abstract
The invention relates to the technical field of electric cookers, and discloses a uniform-temperature electric cooker liner structure which comprises a liner body, wherein an opening end of the liner body is bent outwards and extends to form a flanging, a heat insulation liner is sleeved on the outer side of the liner body, the opening end of the heat insulation liner is welded with the bottom of the flanging, an annular inner cavity is formed between the inner wall of the heat insulation liner and the outer wall of the liner body, a shell is arranged on the outer side of the heat insulation liner, the opening end of the shell is welded with the bottom of the flanging, an annular outer cavity is arranged between the inner wall of the shell and the outer wall of the heat insulation liner, an avoidance hole is arranged at the bottom of the heat insulation liner, the edge of the avoidance hole is hermetically connected with the inner bottom surface of the shell, a medium cavity communicated with the annular inner cavity is formed between the inner bottom surface of the shell. The invention has the advantages of uniform heating, high heat utilization rate and high cooking efficiency.
Description
Technical Field
The invention relates to the technical field of electric cookers, in particular to an inner container structure of a uniform-temperature electric cooker.
Background
The traditional electric cooker generally adopts a bottom heating plate technology, and after the heating plate at the bottom in the cooker is heated, the heat of the heating plate is transferred to the bottom of the inner container for cooking. Because the heating plate is only positioned at the bottom of the inner container of the electric cooker, the heat is concentrated at the bottom of the inner container, the inner wall is heated slowly, the cooking efficiency is low, different parts in the inner container are heated unevenly, the inner part is heated unevenly during cooking, and finally cooked rice has different hardness and taste at different levels of the inner container; and when heat is transferred from the bottom of the inner container to the side wall, much heat is lost through the outer wall.
For example, chinese patent is granted No. CN204500374U, granted No. 7/29/2015, discloses a novel electric cooker liner, which comprises a liner body, wherein the edge of the upper opening of the liner body is provided with a rolling structure, and the outer side of the bottom of the liner body and the contact surface of the heating plate are uniformly provided with concave points and concave strips. The inner container only increases the heating uniformity of the bottom through the arrangement of the concave points and the concave strips, and the side wall and the bottom of the inner container are still heated unevenly.
Disclosure of Invention
The invention provides a temperature-equalizing electric cooker liner structure which is uniform in heating, high in heat utilization rate and capable of shortening cooking time, and aims to solve the problem that heating is not uniform between the bottom surface and the side surface of an electric cooker liner in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a samming formula electric rice cooker inner bag structure, includes the inner bag body, the open end of inner bag body outwards buckles to extend and forms the turn-ups, the outside cover of inner bag body is equipped with heat insulating container, heat insulating container's open end and turn-ups bottom welded connection form annular inner chamber between heat insulating container's the inner wall and the outer wall of inner bag body, heat insulating container's the outside is equipped with the shell, the open end and the turn-ups bottom welded connection of shell, be equipped with annular exocoel between the inner wall of shell and heat insulating container's the outer wall, heat insulating container's bottom is equipped with dodges the hole, dodges the edge in hole and the interior bottom surface sealing connection of shell, form the medium chamber with annular inner chamber intercommunication between the interior bottom surface of shell and the outer bottom surface of inner bag body, the medium intracavity fill have heat-conducting medium. When the electric cooker is used, the bottom of the shell is in contact with the heating plate in the electric cooker, when the heating plate is heated, the heat-conducting medium in the medium cavity is heated, the heat-conducting medium has good fluidity, and after the heat-conducting medium is locally heated, the heat-conducting medium can move through molecules in the medium within an extreme time, so that the heat-conducting media at different parts are in a uniform temperature state, and the bottom and the side of the inner container body are uniformly heated; the heat insulation liner can reduce the heat loss of the heat-conducting medium and improve the heat utilization rate.
Preferably, the heat-conducting medium is water, alcohol or heat-conducting oil. Water, alcohol or heat conducting oil are conventional heat conducting media, so that the heat conducting oil is low in cost, convenient to obtain, low in corrosivity, free of toxic and side effects and safer to use.
Preferably, a supporting seat is arranged in the medium cavity, the upper end of the supporting seat is in contact support with the outer bottom surface of the inner container body, the lower end of the supporting seat is in contact support with the inner bottom surface of the shell, and the edge of the avoidance hole in the heat insulation container is fixedly connected with the side face of the lower end of the supporting seat; the upper end of the supporting seat is provided with an upper cavity, the lower end of the supporting seat is provided with a lower cavity, the upper cavity and the lower cavity are communicated through a plurality of connecting through holes, a plurality of upper flow guide through holes are formed in the side face of the upper cavity, and a plurality of lower flow guide holes are formed in the side face of the lower cavity. The supporting seat is used for supporting, increasing the whole compression resistance and thermal deformation resistance,
preferably, the outer bottom surface of the inner container body is provided with an upper heat conduction fin at a position in the upper cavity, the inner bottom surface of the shell is provided with a lower heat conduction fin at a position in the lower cavity, and the outer wall of the inner container body is provided with a plurality of vertically distributed side heat conduction fins. The heat exchange surface area of the upper heat conduction fin, the lower heat conduction fin and the side heat conduction fin is greatly increased, and the heat exchange efficiency of the medium is improved.
Preferably, an annular cylinder is arranged in the annular outer cavity, a plurality of sliding holes penetrating through two ends of the annular cylinder are arranged in the annular cylinder, a sealing plug is arranged at the lower end of each sliding hole, a piston is arranged at the upper end of each sliding hole, a pressure spring is arranged between each sealing plug and the corresponding piston in each sliding hole, and a plurality of overflow holes are formed in the upper end of the heat insulation liner. When the heat-conducting medium is heated, the volume of the heat-conducting medium expands, the space in the sliding hole is used for compensating the thermal expansion, when the heat-conducting medium is thermally expanded (for example, the expansion coefficient of alcohol is very large), the heat-conducting medium enters the space at the upper end of the annular cylinder through the overflow hole, and the piston is pushed to move downwards by overcoming the acting force of the pressure spring along with the expansion, so that the volume is increased, the connection failure of the liner body and other parts due to the large expansion force (pressure) generated after the volume of the heat-conducting medium is limited and heated is prevented, and the use is safer; after the heating is stopped, the temperature of the heat-conducting medium is reduced, the volume is reduced, and the piston moves to the upper end to reset under the action of the pressure spring, so that the heat-conducting medium flows back to the medium cavity through the overflow hole.
Preferably, a plurality of supporting plugs are further arranged between the piston and the sealing plug in the sliding hole, a central through hole is formed in the center of each supporting plug, and adjacent supporting plugs are supported through compression springs. Because the depth of the slide hole is large, if a single pressure spring is adopted, the deformation amount of the pressure spring is very large when the pressure spring is used every time, the damage to the pressure spring is large, and the pressure spring can lose efficacy due to fatigue after long-term use; a plurality of pressure springs are arranged in each sliding hole in the structure, so that a large deformation amount is distributed on each pressure spring, the deformation amount of each pressure spring is small, the pressure springs are not easy to damage, and the service life is long.
Preferably, the air pressure in the slide hole is negative pressure. When the piston is not heated, the supporting force of the pressure spring and the negative pressure form balance, so that the piston is positioned at the upper end of the sliding hole, when the volume of the heat-conducting medium expands, the piston can be pushed relatively easily, and the piston cannot be hindered from moving due to overlarge air pressure in the sliding hole.
Preferably, an annular groove is formed in the outer wall of the annular cylinder, and heat-insulating filler is arranged in the annular groove. The heat preservation filler plays a role in heat preservation, can reduce heat loss in the heating process, and also can play a role in heat preservation after the rice is cooked, so that the cooling of the rice is slowed down.
Preferably, the heat insulation liner comprises a heat insulation inner liner and a heat insulation outer liner, the heat insulation outer liner and the heat insulation inner liner are fixedly connected in a buckling mode to form a heat insulation cavity, and the heat insulation cavity is in a vacuum state.
Therefore, the invention has the following beneficial effects: (1) the bottom and the side wall of the inner container body are heated uniformly, and the cooking efficiency is high; (2) the heat loss is small, and the heat utilization rate is high; (3) when cooking, the different levels of rice dryness and humidity in the liner body tend to be consistent, and the rice taste is better.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of a portion B of fig. 1.
Fig. 4 is an enlarged schematic view of the layout at C in fig. 1.
Fig. 5 is a cross-sectional view taken at D-D in fig. 1.
Fig. 6 is a partially enlarged view of E in fig. 5.
Fig. 7 is a cross-sectional view at F-F in fig. 1.
Fig. 8 is a partially enlarged view of fig. 7 at G.
In the figure: the heat insulation inner container comprises an inner container body 1, a flanging 2, a heat insulation inner container 3, a heat insulation inner container 30, a heat insulation outer container 31, a heat insulation cavity 32, an annular inner cavity 4, a shell 5, an annular outer cavity 6, a medium cavity 7, a supporting seat 8, an upper cavity 9, a lower cavity 10, a connecting through hole 11, an upper flow guide through hole 12, a lower flow guide hole 25, an upper heat conduction fin 13, a lower heat conduction fin 14, a side heat conduction fin 15, an annular cylinder 16, a sliding hole 17, a sealing plug 18, a piston 19, a pressure spring 20, an overflow hole 21, a supporting plug 22, a central through hole 23 and heat insulation filler 24.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, 2, 3, 4 and 5, the inner container structure of the uniform temperature electric rice cooker comprises an inner container body 1, wherein an open end of the inner container body is bent outwards and extends to form a flange 2, an insulating container 3 is sleeved on the outer side of the inner container body, the open end of the insulating container is welded with the bottom of the flange, an annular inner cavity 4 is formed between the inner wall of the insulating container and the outer wall of the inner container body, a shell 5 is arranged on the outer side of the insulating container, the open end of the shell is welded with the bottom of the flange, an annular outer cavity 6 is arranged between the inner wall of the shell and the outer wall of the insulating container, an avoiding hole is arranged at the bottom of the insulating container, the edge of the avoiding hole is hermetically connected with the inner bottom surface of the shell, a medium cavity 7 communicated with the annular inner cavity is formed between the inner bottom surface of the shell 5 and the outer bottom surface of the inner container body, the annular inner cavity and the medium, the heat-conducting medium in the embodiment adopts water; the heat insulation liner 3 comprises a heat insulation liner 30 and a heat insulation outer liner 31, the heat insulation outer liner and the heat insulation inner liner are fixedly connected in a buckling mode to form a heat insulation cavity 32, and the heat insulation cavity is in a vacuum state.
As shown in fig. 1 and 4, a support seat 8 is arranged in the medium cavity 7, the upper end of the support seat is in contact support with the outer bottom surface of the inner container body, the lower end of the support seat is in contact support with the inner bottom surface of the outer shell, and the edge of the avoidance hole in the heat insulation container 3 is fixedly connected with the side surface of the lower end of the support seat; an upper cavity 9 is arranged at the upper end of the supporting seat 8, a lower cavity 10 is arranged at the lower end of the supporting seat, the upper cavity and the lower cavity are communicated through a plurality of connecting through holes 11, a plurality of upper flow guide through holes 12 are arranged on the side surface of the upper cavity, and a plurality of lower flow guide holes 25 are arranged on the side surface of the lower cavity; an upper heat conduction fin 13 is arranged at the position, located in the upper cavity, of the outer bottom surface of the liner body 1, a lower heat conduction fin 14 is arranged at the position, located in the lower cavity, of the inner bottom surface of the shell, and a plurality of vertically distributed side heat conduction fins 15 are arranged on the outer wall of the liner body.
As shown in fig. 2, 3, 4, 5 and 6, an annular cylinder 16 is arranged in the annular outer cavity 6, a plurality of sliding holes 17 penetrating through two ends are arranged in the annular cylinder, a sealing plug 18 is arranged at the lower end of each sliding hole, a piston 19 is arranged at the upper end of each sliding hole, a pressure spring 20 is arranged between each sealing plug and the piston in each sliding hole, and a plurality of overflow holes 21 are arranged at the upper end of the heat insulation liner; a plurality of supporting plugs 22 are further arranged between the piston and the sealing plug in the sliding hole, a central through hole 23 is formed in the center of each supporting plug, and adjacent supporting plugs are supported through pressure springs; the air pressure in the slide hole is negative pressure. As shown in fig. 7 and 8, an annular groove is formed in the outer wall of the annular cylinder 16, and a heat-insulating filler 24 is filled in the annular groove and is made of asbestos.
The principle of the invention is as follows with reference to the attached drawings: when the electric cooker is used, the bottom of the shell is in contact with the heating plate in the electric cooker, when the heating plate is heated, the heat-conducting medium in the medium cavity is heated, the heat-conducting medium has good fluidity, and after the heat-conducting medium is locally heated, the heat-conducting medium can move through molecules in the medium within an extreme time, so that the heat-conducting media at different parts are in a uniform temperature state, and the bottom and the side of the inner container body are uniformly heated; the heat insulation liner can reduce the heat loss of the heat-conducting medium and improve the heat utilization rate. When the heat-conducting medium is heated, the volume of the heat-conducting medium expands, the space in the sliding hole is used for compensating the thermal expansion, when the heat-conducting medium is thermally expanded (for example, the expansion coefficient of alcohol is very large), the heat-conducting medium enters the space at the upper end of the annular cylinder through the overflow hole, and the piston is pushed to move downwards by overcoming the acting force of the pressure spring along with the expansion, so that the volume is increased, the connection failure of the liner body and other parts due to the large expansion force (pressure) generated after the volume of the heat-conducting medium is limited and heated is prevented, and the use is safer; after the heating is stopped, the temperature of the heat-conducting medium is reduced, the volume is reduced, and the piston moves to the upper end to reset under the action of the pressure spring, so that the heat-conducting medium flows back to the medium cavity through the overflow hole.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (5)
1. A temperature-equalizing electric cooker inner container structure comprises an inner container body, wherein an opening end of the inner container body is bent outwards and extends to form a flanging, and the structure is characterized in that a heat insulation container is sleeved on the outer side of the inner container body, the opening end of the heat insulation container is welded with the bottom of the flanging, an annular inner cavity is formed between the inner wall of the heat insulation container and the outer wall of the inner container body, a shell is arranged on the outer side of the heat insulation container, the opening end of the shell is welded with the bottom of the flanging, an annular outer cavity is arranged between the inner wall of the shell and the outer wall of the heat insulation container, an avoiding hole is formed in the bottom of the heat insulation container, the edge of the avoiding hole is hermetically connected with the inner bottom surface of the shell, a medium cavity communicated with the annular inner cavity is formed between the inner bottom surface of the shell and the outer bottom surface of the inner; an annular cylinder is arranged in the annular outer cavity, a plurality of sliding holes penetrating through two ends are arranged in the annular cylinder, a sealing plug is arranged at the lower end of each sliding hole, a piston is arranged at the upper end of each sliding hole, a pressure spring is arranged between each sealing plug and the corresponding piston in each sliding hole, and a plurality of overflow holes are formed in the upper end of the heat insulation liner; a plurality of supporting plugs are further arranged in the sliding hole and between the piston and the sealing plug, a central through hole is formed in the center of each supporting plug, and adjacent supporting plugs are supported through pressure springs; the air pressure in the slide hole is negative pressure; an annular groove is formed in the outer wall of the annular cylinder, and heat-insulating filler is arranged in the annular groove.
2. The liner structure of a temperature equalizing electric rice cooker as claimed in claim 1, wherein the heat conducting medium is water, alcohol or heat conducting oil.
3. The liner structure of the uniform temperature electric rice cooker as claimed in claim 1, wherein the medium chamber is provided with a support seat, the upper end of the support seat is in contact with and supported by the outer bottom surface of the liner body, the lower end of the support seat is in contact with and supported by the inner bottom surface of the shell, and the edge of the avoidance hole on the heat insulation liner is fixedly connected with the side surface of the lower end of the support seat; the upper end of the supporting seat is provided with an upper cavity, the lower end of the supporting seat is provided with a lower cavity, the upper cavity and the lower cavity are communicated through a plurality of connecting through holes, a plurality of upper flow guide through holes are formed in the side face of the upper cavity, and a plurality of lower flow guide holes are formed in the side face of the lower cavity.
4. The inner container structure of the uniform temperature electric rice cooker as claimed in claim 3, wherein the outer bottom surface of the inner container body is provided with upper heat-conducting fins at the inner part of the upper cavity, the inner bottom surface of the outer shell is provided with lower heat-conducting fins at the inner part of the lower cavity, and the outer wall of the inner container body is provided with a plurality of vertically distributed side heat-conducting fins.
5. The inner container structure of the uniform temperature electric cooker as claimed in claim 1, wherein the heat insulation liner comprises a heat insulation inner container and a heat insulation outer container, the heat insulation outer container and the heat insulation inner container are fixedly connected to form a heat insulation cavity, and the heat insulation cavity is in a vacuum state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811371996.1A CN109171447B (en) | 2018-11-16 | 2018-11-16 | Inner container structure of uniform temperature type electric cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811371996.1A CN109171447B (en) | 2018-11-16 | 2018-11-16 | Inner container structure of uniform temperature type electric cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109171447A CN109171447A (en) | 2019-01-11 |
| CN109171447B true CN109171447B (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811371996.1A Active CN109171447B (en) | 2018-11-16 | 2018-11-16 | Inner container structure of uniform temperature type electric cooker |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090049647A (en) * | 2007-11-14 | 2009-05-19 | 노한래 | Heating vessel |
| CN201968436U (en) * | 2010-10-28 | 2011-09-14 | 余昌茂 | No-bottom-scorch soy bean milk and rice paste cup |
| KR101930807B1 (en) * | 2015-10-30 | 2018-12-19 | 에너진(주) | a cooking container for induction cooker |
| CN205338559U (en) * | 2015-11-10 | 2016-06-29 | 陈伟君 | Energy -conserving oily heat conduction intermediate layer pot |
| CN206852507U (en) * | 2017-02-21 | 2018-01-09 | 李晓明 | It is a kind of to be easy to the overall saucepan inner bag uniformly heated |
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2018
- 2018-11-16 CN CN201811371996.1A patent/CN109171447B/en active Active
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| CN109171447A (en) | 2019-01-11 |
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