A household electric control rice cooker

Abstract

This application relates to the technical field of rice cookers, and discloses a household electric control rice cooker, which includes a housing main body. An inner pot is provided in the inner cavity of the housing main body. One side of the top of the housing main body is movably connected with a collar through a pin shaft, and an end cover is movably sleeved inside the collar. A hollow column penetrating through its upper and lower ends is movably sleeved inside the cover plate, and a linear drive member is fixedly sleeved on the outer surface of the hollow column and located in the inner cavity of the cover plate. For the household electric control rice cooker provided by this application, with the setting of the end cover and its upper structure, the downward displacement of the linear drive member and its upper sealing plug can be automatically adjusted according to the weight of the food in the inner pot and the selected cooking function, so as to adjust the sealed volume ratio of the inner pot. When cooking less food, the electric energy consumed and the required time when the inner pot is heated and pressurized to a certain extent can be effectively reduced, so that the rice cooker has a relatively high conversion and utilization rate of electric energy and low energy consumption.

Description

Technical Field

[0001] This application relates to the technical field of rice cookers, and particularly to a household electric rice cooker. Background Art

[0002] A rice cooker is a cooking utensil that uses electric heat to heat and cook food. It can perform various cooking operations such as steaming, boiling, stewing, simmering, and braising, and can also keep the food warm. During use, it is clean and hygienic and does not cause pollution. It is an essential tool for modernizing household cooking;

[0003] Among them, when using a rice cooker to cook food, a container called an inner pot is needed. First, the food is placed in the inner pot, and the inner pot is brought into contact with the electric heating device in the rice cooker. Then, when the power is turned on, the electric energy is converted into heat energy by the electric heating device and transferred to the inner pot to heat and cook the food inside;

[0004] Moreover, during the process of using a rice cooker to cook food, the amount of food to be cooked is determined according to the number of diners. Sometimes, more food needs to be cooked, and sometimes less food is cooked. However, since the volume of the inner pot of the rice cooker is fixed, when cooking less food, the overall pressure in the inner pot also needs to be increased to a certain extent. As a result, when the rice cooker cooks less food, part of the electric energy and the heat generated cannot be effectively utilized due to filling the volume of the inner pot, resulting in a relatively low conversion and utilization of electric energy and high energy consumption when cooking less food, and poor stability and reliability.

[0005] Therefore, there is an urgent need for a household rice cooker to solve the above-mentioned defects existing in the actual use of the existing rice cooker. Summary of the Invention

[0006] This application proposes a household electric rice cooker, which has the advantages of automatically adjusting the relative volume of the inner pot according to the amount of food to be cooked, consuming less electric energy and taking less time when heating and pressurizing to a certain extent, having a relatively high conversion and utilization of electric energy and low energy consumption, so as to solve the problem that the volume of the inner pot of the existing rice cooker is fixed, and when cooking less food, the overall pressure in the inner pot also needs to be increased to a certain extent, resulting in part of the electric energy and the heat generated being unable to be effectively utilized due to filling the volume of the inner pot, resulting in a relatively low conversion and utilization of electric energy and high energy consumption when cooking less food.

[0007] To achieve the above object, the present application adopts the following technical solutions: A household electric control rice cooker, including a housing main body, a trigger spring is provided at the bottom of the inner cavity of the housing main body, an inner pot is provided in the inner cavity of the housing main body, one side of the top of the housing main body is movably connected with a collar through a pin shaft, and an end cover is movably sleeved inside the collar. A group of IH electromagnetic coils are respectively provided at the bottom end and the middle part of the inner wall of the housing main body. The end cover includes a cover plate movably sleeved on the collar. A hollow column penetrating through the upper and lower ends thereof is movably sleeved inside the cover plate. A linear drive member is fixedly sleeved on the outer surface of the hollow column and located in the inner cavity of the cover plate. A return spring is movably sleeved at the bottom of the outer surface of the hollow column and located in the inner cavity of the cover plate. A sealing plug with an outer wall contacting the inner wall of the inner pot is provided at the bottom of the outer surface of the hollow column and below the cover plate. An exhaust valve is clamped at the top end of the hollow column.

[0008] Further, a linkage disk is movably sleeved inside the bottom end of the housing main body, and an elastic bladder is provided on the outer ring of the bottom end of the linkage disk. A transmission connection is formed between the bottom end of the linkage disk and the bottom end inside the housing main body through the elastic bladder. The IH electromagnetic coil at the bottom end of the housing main body is arranged on the top end of the linkage disk.

[0009] Further, a piezoelectric block electrically connected to the linear drive member is provided on the inner ring of the bottom end of the linkage disk and contacts the bottom end inside the housing main body through the piezoelectric block.

[0010] Further, a card slot is provided at the top end of the housing main body, and a card block is provided at the bottom end of the cover plate. A rotary handle is fixedly installed on one side of the top end of the cover plate.

[0011] Further, an air bladder is provided on the outer wall of the sealing plug, and an inert gas is filled inside the air bladder.

[0012] Further, the electrical connection circuit between the piezoelectric block and the linear drive member is electrically connected to the control panel on the rice cooker, and the downward movement ratio of the linear drive member when the piezoelectric block feedbacks different weights is regulated according to different functions triggered on the control panel.

[0013] Further, the electrical connection circuit between the piezoelectric block and the linear drive member is connected in series with the heat preservation function on the rice cooker, and the heat preservation function on the rice cooker is in a normally closed state on this electrical connection circuit. When the heat preservation function is triggered, the electrical connection circuit is cut off.

[0014] The present invention application has the following technical effects:

[0015] An electric household rice cooker provided by the present application can, for the setting of the end cover and the structures thereon, automatically adjust the downward displacement of the linear drive member and the sealing plug thereon according to the weight of the food in the inner pot and the cooking function selected, and further adjust the sealed volume ratio of the inner pot, so as to effectively reduce the electric energy consumed and the required time when the inner pot is heated and pressurized to a certain extent when cooking less food, and further make the electric rice cooker have a relatively high conversion and utilization rate of electric energy and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings forming a part of the specification illustrate the embodiments disclosed in the present application and, together with the description, are used to explain the principles disclosed in the present application.

[0017] Referring to the drawings, the present application can be more clearly understood from the following detailed description, wherein:

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a front view of the structure of the present invention;

[0020] Figure 3 is a schematic structural diagram of the present invention after the end cover is opened;

[0021] Figure 4 is a front view of the structure of the present invention after the end cover is opened;

[0022] Figure 5 is a schematic structural diagram of the housing body of the present invention;

[0023] Figure 6 is a schematic structural diagram of the end cover of the present invention.

[0024] In the figures: 1, housing body; 2, trigger spring; 3, inner pot; 4, collar; 5, end cover; 6, linkage disk; 7, elastic bladder; 8, piezoelectric block; 9, IH electromagnetic coil; 10, cover plate; 11, hollow column; 12, linear drive member; 13, return spring; 14, exhaust valve; 15, rotary handle; 16, sealing plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0026] As Figure 1-2As shown in the figure, a household electric control rice cooker includes a housing main body 1. A trigger spring 2 is provided at the bottom of the inner cavity of the housing main body 1, and a contact in series with the control switch is provided at the bottom end of the trigger spring 2. The rice cooker can be powered on only when the trigger spring 2 is pressed down and the control switch is triggered simultaneously. An inner pot 3 for containing food is provided in the inner cavity of the housing main body 1. As Figure 3-4 shown in the figure, one side of the top end of the housing main body 1 is movably connected with a collar 4 through a pin shaft, and an end cover 5 capable of sealing the inner pot 3 is movably sleeved inside the collar 4. Thus, the end cover 5 can be disengaged from the inner pot 3 during the process of reversing the collar 4. A set of IH electromagnetic coils 9 for electrically heating the inner pot 3 are respectively provided at the bottom end and the middle part of the inner wall of the housing main body 1, and are electrically connected to the control switch. As Figure 6 shown in the figure, the end cover 5 includes a cover plate 10 movably sleeved on the collar 4. A hollow column 11 penetrating through its upper and lower ends is movably sleeved inside the cover plate 10. A linear drive member 12 is fixedly sleeved on the outer surface of the hollow column 11 and located in the inner cavity of the cover plate 10. A return spring 13 is movably sleeved at the bottom of the outer surface of the hollow column 11 and located in the inner cavity of the cover plate 10, and forces the hollow column 11 to move upward after the linear drive member 12 is powered off, returning to its initial position. A sealing plug 16 with an outer wall contacting the inner wall of the inner pot 3 is provided at the bottom of the outer surface of the hollow column 11 and below the cover plate 10. Thus, when the hollow column 11 moves downward, the top end of the inner pot 3 can be sealed through the sealing plug 16, and the relative volume of the inner pot 3 can be adjusted according to the downward movement amount of the hollow column 11. An exhaust valve 14 is clamped at the top end of the hollow column 11. Thus, a part of the steam inside the inner pot 3 can be discharged during the cooking of food by using the exhaust valve 14 to adjust the internal pressure, and after the cooking is completed, the internal pressure of the inner pot 3 can be emptied by using the exhaust valve 14.

[0027] As Figure 5 shown in the figure, in this technical solution, a linkage disk 6 is movably sleeved inside the bottom end of the housing main body 1, and an elastic bladder 7 is provided on the outer ring of the bottom end of the linkage disk 6. A transmission connection is formed between the bottom end of the linkage disk 6 and the bottom end inside the housing main body 1 through the elastic bladder 7. Under the action of the elastic bladder 7, the linkage disk 6 always has a tendency to move upward. The IH electromagnetic coils 9 at the bottom end of the housing main body 1 are arranged on the top end of the linkage disk 6. Thus, when the trigger spring 2 is pressed down and the control switch is triggered simultaneously, the two groups of IH electromagnetic coils 9 are powered on and generate heat to heat and cook the food in the inner pot 3.

[0028] As Figure 5 shown in the figure, in this technical solution, a piezoelectric block 8 electrically connected to the linear drive member 12 is provided on the inner ring of the bottom end of the linkage disk 6, and contacts the bottom end inside the housing main body 1 through the piezoelectric block 8. Thus, the downward movement amount of the hollow column 11 can be controlled according to the feedback of the piezoelectric block 8 on the weight of the inner pot 3.

[0029] AsFigure 5-Figure 6 As shown, in this technical solution, a clamping groove is provided at the top of the outer shell main body 1, and a clamping block is provided at the bottom end of the cover plate 10. A rotary handle 15 is fixedly installed on one side of the top end of the cover plate 10. Thus, when closing the end cover 5, the cover plate 10 can be rotated by the rotary handle 15, and under the action of the clamping groove and the clamping block, the cover plate 10 is firmly clamped on the outer shell main body 1 to provide corresponding pressure support for the downward movement of the sealing plug 16.

[0030] As Figure 6 shown, in this technical solution, an airbag made of non-toxic elastic material is provided on the outer wall of the sealing plug 16, and a non-toxic inert gas with a large coefficient of thermal expansion is filled inside the airbag. Thus, when it contacts the inner wall of the inner container 3, when the temperature of the inner container 3 rises, it can force the inert gas inside the airbag to undergo a thermal expansion phenomenon, so as to effectively increase the sealing performance between the sealing plug 16 and the inner wall of the inner container 3 and prevent the steam inside from leaking easily.

[0031] In this technical solution, the electrical connection circuit between the piezoelectric block 8 and the linear drive member 12 is electrically connected to the control panel on the rice cooker, and according to different functions triggered on the control panel, the downward movement ratio of the linear drive member 12 when the piezoelectric block 8 feedbacks different weights is regulated. Because when cooking different foods, there are certain differences in the relative volume required by the inner container 3:

[0032] For example, when cooking rice, the relative volume required by the inner container 3 is smaller. Thus, when selecting the rice cooking function, the degree of the downward movement ratio of the linear drive member 12 according to the weight feedback by the piezoelectric block 8 is larger;

[0033] When making soup, the relative volume required by the inner container 3 is larger. Thus, when selecting the soup making function, the degree of the downward movement ratio of the linear drive member 12 according to the weight feedback by the piezoelectric block 8 is smaller;

[0034] Therefore, the rice cooker can be automatically regulated when cooking different foods, and has high operability and controllability.

[0035] In this technical solution, the electrical connection circuit between the piezoelectric block 8 and the linear drive member 12 is connected in series with the heat preservation function on the rice cooker, and the heat preservation function on the rice cooker is in a normally closed state on this electrical connection circuit. When the heat preservation function is triggered, this electrical connection circuit is cut off.

[0036] Among them, when using this rice cooker to cook food, first place the food in the inner pot 3, and place the inner pot 3 in the inner cavity of the outer shell main body 1. Then, turn on the power of this rice cooker and select the cooking function on the control panel. At the same time, under the important action of the inner pot 3 and the food on it, the linkage disk 6 is forced to move downward and compress the elastic bladder 7, and a certain degree of extrusion is exerted on the piezoelectric block 8, and induced currents of different intensities are generated due to different compression degrees. And in cooperation with the cooking function selected on the control panel, the downward movement ratio of the linear driving member 12 is automatically regulated, and the corresponding displacement amount is driven to move downward on the linear driving member 12 thereon;

[0037] Then, as the IH electromagnetic coil 9 heats the inner pot 3, the temperature of the inner pot 3 gradually rises, causing the inert gas inside the airbag on the sealing plug 16 in contact with it to undergo thermal expansion, and effectively increasing the sealing performance between it and the inner wall of the inner pot 3, making the steam on it not prone to leakage, and cooking the food in the inner pot 3 under the action of high temperature and high pressure;

[0038] After the rice cooker finishes cooking, the function of its control panel directly jumps to the warming function, thereby cutting off the conductive connection of the linear driving member 12. And under the upward elastic force of the return spring 13, as the internal gas pressure of the inner pot 3 recovers, the hollow column 11 and the sealing plug 16 thereon also gradually return to their initial positions. After that, rotate the cover plate 10 through the rotating handle 15, so that the card slot on it and the card block are separated from each other and the end cover 5 can be opened.

Claims

1. A household electric control rice cooker, comprising a housing main body (1). A trigger spring (2) is provided at the bottom of the inner cavity of the housing main body (1). An inner pot (3) is provided in the inner cavity of the housing main body (1). One side of the top end of the housing main body (1) is movably connected by a pin shaft to a collar (4), and an end cover (5) is movably sleeved inside the collar (4). A group of IH electromagnetic coils (9) are respectively provided at the bottom end and the middle part of the inner wall of the housing main body (1). It is characterized in that: The end cover (5) includes a cover plate (10) movably sleeved on the collar (4). A hollow column (11) passing through its upper and lower ends is movably sleeved inside the cover plate (10). A linear drive member (12) is fixedly sleeved on the outer surface of the hollow column (11) and located in the inner cavity of the cover plate (10). A return spring (13) is movably sleeved on the bottom of the outer surface of the hollow column (11) and located in the inner cavity of the cover plate (10). A sealing plug (16) with an outer wall contacting the inner wall of the inner pot (3) is provided at the bottom of the outer surface of the hollow column (11) and below the cover plate (10). An exhaust valve (14) is clamped at the top end of the hollow column (11); A linkage disk (6) is movably sleeved inside the bottom end of the housing main body (1). A piezoelectric block (8) forming an electrical connection with the linear drive member (12) is provided on the inner ring of the bottom end of the linkage disk (6) and contacts the bottom end inside the housing main body (1) through the piezoelectric block (8). The electrical connection circuit between the piezoelectric block (8) and the linear drive member (12) is electrically connected to the control panel on this rice cooker, and the downward movement ratio of the linear drive member (12) when the piezoelectric block (8) feedbacks different weights is regulated according to different functions triggered on the control panel.

2. The household electric control rice cooker according to claim 1, wherein An elastic bladder (7) is provided on the outer ring of the bottom end of the linkage disk (6), and a transmission connection is formed between the bottom end of the linkage disk (6) and the bottom end inside the housing main body (1) through the elastic bladder (7). The IH electromagnetic coil (9) at the bottom end of the housing main body (1) is arranged on the top end of the linkage disk (6).

3. The household electric rice cooker according to claim 2, wherein, A card slot is provided at the top end of the housing main body (1), and a card block is provided at the bottom end of the cover plate (10). A rotary handle (15) is fixedly installed on one side of the top end of the cover plate (10).

4. The household electric control rice cooker according to claim 3, characterized in that, An air bladder is provided on the outer wall of the sealing plug (16), and an inert gas is filled inside the air bladder.

5. The household electric controlled rice cooker according to claim 4, wherein The electrical connection circuit between the piezoelectric block (8) and the linear drive member (12) is connected in series with the heat preservation function on this rice cooker, and the heat preservation function on this rice cooker is in a normally closed state on this electrical connection circuit. When the heat preservation function is triggered, this electrical connection circuit is cut off.

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