CN213721364U

CN213721364U - Electric rice cooker

Info

Publication number: CN213721364U
Application number: CN202022562246.1U
Authority: CN
Inventors: 李一峰; 刘俊
Original assignee: Bear Electrical Appliance Co Ltd; Foshan Bear Intelligent Electric Appliance Co Ltd
Current assignee: Bear Electrical Appliance Co Ltd; Foshan Bear Intelligent Electric Appliance Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-20
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses an electric rice cooker, which comprises an inner cooker body, a cooker liner and a cooker cover, wherein a heating cavity is arranged in the cooker body, and the cooker liner is arranged in the heating cavity; the heating cavity is internally provided with a hot air heating device, the hot air heating device comprises a heating body, a hot air guide plate, a heating fan and a motor for driving the heating fan, the heating body is arranged between the hot air guide plate and the heating fan, and hot air formed after flowing through the heating body is guided to the bottom and the peripheral side of the pot liner by the hot air guide plate. The hot air guide plate is simple in structure, the bottom and the peripheral side of the pot liner can be heated simultaneously through hot air, the whole pot liner is heated in an all-around mode, heating is uniform, and therefore a good cooking effect is achieved.

Description

Electric rice cooker

Technical Field

The utility model belongs to the technical field of domestic appliance and specifically relates to an electric rice cooker is related to.

Background

This section merely provides background information related to the present application so as to enable those skilled in the art to more fully and accurately understand the present application, which is not necessarily prior art.

The electric cooker is a household appliance with the highest daily use frequency, Chinese people are the largest group for eating rice, and the quality of rice cooking of the electric cooker is directly related to the life quality of thousands of households. In order to cook rice, various rice cooker manufacturers also completely cook rice, and the research on the rice cooker by Japanese has also been extremely intensive in various rice cookers of the utility model, such as IH (electromagnetic heating) rice cooker, and how to cook fragrant and sprayed rice like cooking with firewood is continuously optimized from the thickness of the inner container, the material of the inner container, the heating and cooking process (such as vacuumizing and pressurizing), and the like. However, the current electric rice cookers cannot actually achieve the taste of real firewood rice, and the reason is that the real firewood rice is heated by the flame of the firewood, the flame basically burns the whole pot, and the temperature of the flame is high, so the cooked rice is delicious.

For example, chinese patent CN201210010482X discloses an electric rice cooker capable of supplementing heat, wherein an air inlet, a hot air system for supplementing heat to the inner pot, and a hot air outlet are disposed on the lid of the electric rice cooker, and the hot air system is used to blow hot air from top to bottom during cooking to supplement heat to food in the inner pot of the electric rice cooker. However, the heating mode can only supplement heat for stewing and boiling rice on the upper part in the inner container of the pot, and can not heat rice in the pot in an all-round way; meanwhile, hot air is directly blown into the surface of the food in the inner pot, so that the surface of the food is easy to be dehydrated in a transition way, and the phenomenon that the topmost layer of the cooked rice is dried to influence the taste is reflected; food cooked in the pot can enter the pot cover from the hot air outlet along with steam, so that the pot cover is difficult to clean, and certain sanitation hidden troubles exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an electric rice cooker with simple structure, which can uniformly heat the cooker liner to obtain better cooking effect.

The utility model provides an electric cooker, which comprises an inner cooker body, a cooker liner and a cooker cover, wherein a heating cavity is arranged in the cooker body, and the cooker liner is arranged in the heating cavity; the heating cavity is internally provided with a hot air heating device, the hot air heating device comprises a heating body, a hot air guide plate, a heating fan and a motor for driving the heating fan, the heating body is arranged between the hot air guide plate and the heating fan, and hot air formed after flowing through the heating body is guided to the bottom and the peripheral side of the pot liner by the hot air guide plate.

In a preferred embodiment, the hot air heating device is positioned at the bottom of the pot container or positioned at the side surface of the pot container.

In a preferred embodiment, the pot body comprises an outer shell, a heat shield positioned on the inner side wall of the heating cavity, and heat insulation material filled between the heat shield and the outer shell.

In a preferred embodiment, a gap is arranged between the hot air guide plate and the pot container.

In a preferred embodiment, a heat dissipation cavity separated from the heating cavity is further arranged in the pot body, a plurality of heat dissipation holes communicated with the heat dissipation cavity are formed in the pot body, the motor is arranged in the heat dissipation cavity, and a rotating shaft of the motor extends into the heating cavity to be connected with the heating fan in a driving mode.

In a preferred embodiment, a substrate is disposed between the heat dissipation chamber and the heating chamber, and the motor is fixed to the substrate.

In a preferred embodiment, a cooling fan is further arranged on the rotating shaft of the motor, the cooling fan is located in the heat dissipation cavity, and a cold air guide plate is arranged on the inner side wall of the heat dissipation cavity.

In a preferred embodiment, a temperature sensing device is arranged at the bottom of the cooker liner or/and the cooker cover, and a control circuit board electrically connected with the temperature sensing device, the motor and the heating element is arranged in the cooker body.

In a preferred embodiment, the hot air guide plate comprises a guide plate main body arranged opposite to the heating body and a guide plate extending from the peripheral side of the guide plate main body to the direction far away from the heating body to the peripheral side of the pot container, and a plurality of circulation holes are arranged on the guide plate main body.

In a preferred embodiment, the top end of the guide plate extends to 1/4-3/4 of the height of the pot container.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an electric rice cooker heats the culinary art through hot-blast heating device, can heat the bottom and the week side of pot courage simultaneously through hot-blast, is the omnidirectional to the heating of whole pot courage, so when cooking, just the pot courage is heat all around and transmits the rice water in the pot courage simultaneously, and the heating is just more even like this, and the whole pot rice taste of cooking out is unanimous, the culinary art effect preferred.

2. Compared with the cooking mode that the hot air circulation is arranged in the pot cover to supplement heat to food in the pot container from top to bottom in the prior art, hot air cannot enter the pot container in the cooking process, the moisture of the food in the pot container cannot be taken away by the hot air, and the food is prevented from being dehydrated and dried, so that the cooking effect is guaranteed.

3. The utility model discloses need not to change the structure of the pot body or/and pot cover, realize comparatively simply.

Drawings

Fig. 1 is a schematic view of the internal structure of the first embodiment of the rice cooker, wherein arrows indicate the flow direction of air.

FIG. 2 is a schematic view of the inner structure of the second embodiment of the electric rice cooker.

Detailed Description

To further clarify the technical solutions and effects adopted by the present application to achieve the intended purpose, the following detailed description is given with reference to the accompanying drawings and preferred embodiments according to the present application. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

First embodiment

As shown in fig. 1, the utility model discloses an electric rice cooker, which comprises a cooker body 1, a cooker liner 3 and a cooker cover 4, wherein a heating cavity 2 is arranged in the cooker body 1, and the cooker liner 3 is arranged in the heating cavity 2; the bottom of the heating cavity 2 is provided with a hot air heating device, the hot air heating device comprises a heating element 53, a hot air guide plate 52, a heating fan 54 and a motor 55 for driving the heating fan 54, the heating element 53 is arranged between the hot air guide plate 52 and the heating fan 54, the hot air guide plate 52 is arranged at the bottom of the pot container 3, and the hot air guide plate 52 guides the hot air formed after flowing through the heating element 53 to the bottom and the peripheral side of the pot container 3. Therefore, the electric cooker of the embodiment improves the hot air heating device, and particularly, the hot air guide plate 52 is arranged below the cooker liner 3 to guide the hot air to the peripheral side of the cooker liner 3, so that the bottom and the peripheral side of the cooker liner 3 can be uniformly heated at the same time, and the cooking effect of the electric cooker is improved.

The pot body 1 comprises an outer shell 11, a heat insulation cover 12 positioned on the inner side wall of the heating cavity 2 and heat insulation materials 13 filled between the heat insulation cover 12 and the outer shell 11, so that the heating cavity 2 which heats the pot container 2 and does not easily lose heat is formed in the heat insulation cover 12.

The pot cover 4 is arranged at the top of the pot body 1, and the electric cooker can be opened or closed through the pot cover 4. When the pot cover 4 covers the pot body 1, a sealing ring is often arranged between the pot cover 4 and the pot body 1, so that a cooking space is formed between the pot cover 4 and the pot body 1 in a surrounding manner, and the cooking space and the heating cavity 2 are isolated from each other. That is, in the cooking process, the hot air generated in the heating chamber 2 cannot be blown into the cooking space, so that the hot air does not dehydrate and dry the food in the pot container 3, thereby improving the cooking effect of the food.

The gap is formed between the hot air guide plate 52 and the pot container 2, the gap prevents the heat generated by the heating element 53 from being directly conducted to the bottom of the pot container 2 through the hot air guide plate 52, and the heat generated by the heating element 53 is mainly heated in the bottom and the peripheral side of the pot container 2 in an all-around manner according to the circulation of hot air in the heating cavity 2.

The hot air baffle 52 includes a baffle body 521 provided to face the heating element 53, and a guide plate 522 extending from the circumferential side of the baffle body 521 to the direction away from the heating element 53 to the circumferential side around the pot core 2. Meanwhile, it can be understood that the size of the guide plate main body 521 is matched with the bottom of the pot container 2, the guide plate main body 521 is located between the pot container 2 and the heating element 53, and a gap is formed between the guide plate main body 521 and the bottom of the pot container 2. The guide plate main body 521 isolates most of heat generated by the heating body 53 from directly radiating to the bottom of the pot container 2, so that the bottom of the pot container 2 is prevented from becoming a more main heated part compared with the peripheral side of the pot container 2; meanwhile, the hot air flowing through the heating element 53 is guided to the peripheral side of the pot inner 2 by the guide plate 522, so that the peripheral side of the pot inner 2 can be heated by the hot air at the same time.

The top end of the guide plate 522 extends to 1/4-3/4 of the height of the pot container 2. This kind of setting is mainly considered the how much of normal culinary art food in pot courage 2, has reasonable height through setting up guide plate 522, lets guide plate 522 can lead hot-blast to the suitable position of pot courage 2 week side to can both carry out fully heating to food simultaneously from the week side of pot courage 2 under most food culinary art circumstances and improve the culinary art effect.

In order to allow hot air to circulate between the bottom of the pot container 2 and the periphery of the pot container 2 in the heating chamber 2, a plurality of circulation holes 5211 are formed in the deflector body 521, and the hot air flows through the circulation holes 5211 to form a circulation path, as shown by the arrows in fig. 1.

The pot body 1 is also internally provided with a heat dissipation cavity 6 separated from the heating cavity 2, the pot body 1 is provided with a plurality of heat dissipation holes 61 communicated with the heat dissipation cavity 6, the motor 55 is arranged in the heat dissipation cavity 6, the rotating shaft of the motor 55 extends into the heating cavity 2 and is connected with the heating fan 54 to drive the heating fan 54 to rotate, and the air flow forms hot air for heating and cooking the pot liner 53 when passing through the heating body 53.

The base plate is arranged between the heat dissipation cavity 6 and the heating cavity 2, and the motor 55 is fixed on the base plate, so that the motor 55 is firmly fixed and cannot shake, and the structural reliability of the hot air heating device is improved.

A cooling fan 56 is further provided on the rotating shaft of the motor 55, and the cooling fan 56 is located in the heat dissipation chamber 6. When the motor 55 drives the heating fan 54 to rotate, the cooling fan 56 is driven to rotate to blow air to the motor 55, and heat exchange between cold air in the heat dissipation cavity 6 and outside the cooker body 1 is increased through the heat dissipation holes 61, so that the effect of heat dissipation of the motor 55 is achieved, and the motor 55 can be ensured to be in a stable and reliable working state to improve the working reliability of the electric cooker.

The inner side wall of the heat dissipation cavity 6 is provided with a cold air guide plate 62, and the air blown to the motor 55 by the cooling fan 56 is guided to the heat dissipation holes 61 through the cold air guide plate 62, so that the heat exchange capability between the heat dissipation cavity 6 and the cold air outside the pot body 1 is improved.

The working principle of the electric cooker is as follows: during cooking, the heating element 53 is electrified to generate heat, and meanwhile, the motor 55 is also electrified to rotate, so that the heating fan 54 and the cooling fan 56 are driven to rotate in the same part, the heating fan 54 rotates to cause airflow in the heating cavity 2 to flow, the airflow is continuously heated to be high-temperature hot air when flowing through the heating element 53, the hot air is guided to the periphery side of the pot container 2 through the hot air guide plate 52, and hot air circulation is formed in the heating cavity 2; the circulation path is specifically shown by an arrow in fig. 1, the hot air reaches the middle upper position of the pot liner 2 along the hot air guide plate 52, and then flows downwards and flows through the circulation hole 5211 at the bottom of the hot air guide plate 52 to form hot air circulation. Thus, the whole pot container 2 is heated in all directions, heat is brought to the bottom and the periphery of the pot container 2 simultaneously through the circulation flow of hot air, and the pot container 2 transfers the heat to food (rice and water when cooking) in the pot container 2; the motor 55 is cooled by heat dissipation by the cooling fan 55.

The electric rice cooker of this embodiment heats the culinary art through hot-blast heating device, and the advantage lies in: firstly, the bottom and the peripheral side of the pot liner 2 can be simultaneously heated by hot air, the heating of the whole pot liner 2 is all-round, so that the heat around the pot liner is simultaneously transferred to rice water in the pot liner 2 when cooking, the heating is more uniform, the taste of the cooked whole pot rice is consistent, and the whole pot rice is more uniform than that of the currently popular IH heating mode (because the current IH heating mode is only that a small part of the pot liner at the bottom of the pot liner and the lower part of the side face generates heat, and the whole side face of the pot liner can not completely generate heat). Secondly, hot air can not enter the pot container 2 in the cooking process, so that the hot air can not take away the moisture of food in the pot container 2, and the food is prevented from being dehydrated and dried, thereby ensuring the cooking effect. Thirdly, the utility model discloses need not to change the structure of the pot body 1 or/and pot cover 4, realize comparatively simply.

Further, in this embodiment, a temperature sensing device (such as an NTC sensor) may be disposed at the bottom of the inner container 2 or/and the lid 4, and a control circuit board electrically connected to the temperature sensing device, the motor 55 and the heating element 53 may be disposed in the pot body 1. When cooking starts, the control circuit board can control the heating element 53 to work with smaller power, so that the rice can fully absorb water; after the preset heating time, the control circuit board controls the heating element 53 to operate at a higher power (for example, full power) to quickly heat the rice and water in the pot container 2 to boiling, and after the rice and water are fully boiled, the power of the heating element 53 can be reduced to collect the water until the cooking is completely finished. For example, the heating element 53 is a resistance wire, an electric heating tube or an electric heating film. A power regulating element (for example, a thyristor) is connected in series between the heating element 53 and the power supply, and the control circuit board controls the heating power of the heating element 53 through the power regulating element.

Example two

As shown in fig. 2. Compared with the first embodiment, the hot air heating device is arranged in the heating cavity 2, but the hot air heating device is not arranged at the bottom of the pot container 2, and the hot air heating device is arranged on the side surface of the pot container 2. At this time, the hot air guide plate 52 is located on the side of the pot container 2, and the hot air guide plate 52 guides the hot air to the bottom of the pot container 2 and other sides of the pot container 2 not facing the heating element 53 at the same time, so that the hot air can heat the bottom of the pot container 2 and the periphery of the pot container 2 at the same time.

At this time, the flow plate main body 521 of the hot air flow guide plate 52 is disposed opposite to the heating element 53, the guide plate 522 is disposed to extend from the peripheral side of the flow plate main body 521 to the direction away from the heating element 53, the end of the guide plate 522 preferably extends to surround the periphery of the pot liner 2, and the top end of the guide plate 522 preferably extends to 1/4-3/4 positions of the height of the pot liner 2, so that the hot air flow guide plate 52 can better guide hot air to the bottom and the peripheral side of the pot liner 2 at the same time, thereby ensuring the cooking effect of the electric rice cooker.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electric cooker comprises a cooker body, a cooker liner and a cooker cover, wherein a heating cavity is arranged in the cooker body, and the cooker liner is arranged in the heating cavity; the hot air heating device is characterized in that a hot air heating device is arranged in the heating cavity and comprises a heating body, a hot air guide plate, a heating fan and a motor for driving the heating fan, the heating body is arranged between the hot air guide plate and the heating fan, and the hot air guide plate guides hot air formed after flowing through the heating body to the bottom and the peripheral side of the pot liner.

2. The rice cooker as claimed in claim 1, wherein the hot air heating means is located at the bottom of the inner pot or at the side of the inner pot.

3. The rice cooker of claim 1, wherein the body comprises an outer casing, a heat insulating cover disposed on an inner side wall of the heating chamber, and a heat insulating material filled between the heat insulating cover and the outer casing.

4. The rice cooker as claimed in claim 1, wherein a gap is provided between the hot air guide plate and the inner container.

5. The rice cooker as claimed in claim 1, wherein a heat dissipation chamber isolated from the heating chamber is further provided in the cooker body, a plurality of heat dissipation holes communicated with the heat dissipation chamber are provided in the cooker body, the motor is provided in the heat dissipation chamber, and a rotating shaft of the motor is extended into the heating chamber and is drivingly connected to the heating fan.

6. The rice cooker of claim 5, wherein a base plate is disposed between the heat dissipation chamber and the heating chamber, and the motor is fixed to the base plate.

7. The rice cooker as claimed in claim 5, wherein a cooling fan is further provided on the shaft of the motor, the cooling fan is located in the heat dissipation chamber, and a cold air guide plate is provided on an inner side wall of the heat dissipation chamber.

8. The rice cooker as claimed in claim 1, wherein a temperature sensing device is provided at the bottom of the inner container or/and the lid, and a control circuit board electrically connected to the temperature sensing device, the motor and the heating element is provided in the inner container.

9. The rice cooker as claimed in any one of claims 1-8, wherein the hot air guide plate comprises a main body facing the heating element and a guide plate extending from the peripheral side of the main body to a direction away from the heating element to a peripheral side of the inner container, and the main body is provided with a plurality of circulation holes.

10. The rice cooker as claimed in claim 9, wherein the top end of the guide plate extends to 1/4-3/4 of the height of the cooker liner.