Rice cooking utensil

Abstract

The utility model provides a rice cooking appliance, which is characterized by comprising a shell, an upper end of the shell is open, and the shell is provided with an internal space; an opening is formed in the upper end of the inner pot, and the inner pot can be placed in the inner space of the shell; an outer cover capable of closing the housing or opening the housing, the outer cover having a cooling container, the cooling container facing the opening of the inner pot above the inner pot when the outer cover closes the housing; the fan is arranged in the shell, and the fan is communicated with the outside and used for sucking outside air; and a duct for introducing the outside air sucked in by the fan into the cooling container. Based on the rice cooking utensil, the inner pot can be rapidly cooled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cooking utensils, specifically, a kind of cooking utensils is rapidly cooled inner pot in the way of air cooling. BACKGROUND

[0002] As a typical cooking utensil, for example, electric rice cooker can be listed. In the market at present, more adopt the mode of fan blowing inner pot cooling. For example, the following technical scheme is disclosed in patent document 1: fan is arranged below heating disc, fan is started automatically or manually after cooking power-off, and heating disc and inner pot, outer pot are cooled by air power to reduce pressure, but there are problems such as poor cooling effect, too much space occupied by shell.

[0003] PRIOR ART DOCUMENT

[0004] PATENT DOCUMENT

[0005] Patent document 1: CN220369835U UTILITY MODEL CONTENT

[0006] PROBLEMS TO BE SOLVED BY THE UTILITY MODEL

[0007] The utility model provides a kind of cooking utensils in view of the above-mentioned situation, it can rapidly cool inner pot.

[0008] SCHEME FOR SOLVING THE PROBLEM

[0009] The technical scheme of the utility model provides a kind of cooking utensils, characterized in that, including: shell, open on upper end, with internal space;Inner pot, open on upper end, the inner pot can be placed in the internal space of the shell;Outer cover, can close the shell or make the shell open, the outer cover has cooling container, when the outer cover closes the shell, the cooling container is above the inner pot and opposite the opening of the inner pot;Fan, set in the inside of the shell, the fan is connected with outside, for inhaling external air;And pipeline, for guiding external air inhaled by the fan into the cooling container.

[0010] Preferably, the lower portion of the cooling container has an opening, and the cooking utensil further has an inner cover that closes the opening in the lower portion of the cooling container.

[0011] Preferably, the pipeline includes a shell inner pipeline and an outer cover inner pipeline, the shell inner pipeline and the outer cover inner pipeline are joined together when the outer cover closes the shell, and a first sealing member is included in at least one of the shell and the outer cover, the first sealing member seals the joint of the shell inner pipeline and the outer cover inner pipeline.

[0012] Preferably, a second sealing member is provided between the inner cover and the outer cover.

[0013] Preferably, an air guide shroud is provided on the side of the housing to guide the outside air drawn in by the fan.

[0014] Preferably, when the outer cover closes the housing, the inner cover and the second seal close the inner pot.

[0015] Preferably, the pipe has an air outlet extending into the cooling container, the air outlet having an air outlet at its top, the air outlet being opposite to the opening of the inner pot.

[0016] Preferably, the air outlet increases in diameter as it moves toward the inner pot, and the air outlet is integrally opened at the top of the air outlet.

[0017] Preferably, the air outlet narrows as it moves toward the inner pot, and the air outlet is integrally open at the top of the air outlet.

[0018] Preferably, the air outlet increases in diameter as it moves toward the inner pot, and the air outlet has a mesh-like opening over the entire top portion of the air outlet.

[0019] Preferably, in a top view, the area of ​​the expanded air outlet is more than 80% of the area of ​​the cooling container.

[0020] Preferably, the fan is a turbo fan.

[0021] Preferably, the fan is located on the side of the inner pot or at the bottom of the inner pot.

[0022] Preferably, the fan has a cover channel for airflow.

[0023] Effects of the utility model

[0024] The cooking appliance based on this invention can quickly cool the inner pot. Attached Figure Description

[0025] Figure 1 This is a cross-sectional schematic diagram of the cooking appliance of this utility model.

[0026] Figure 2 This is a schematic diagram of the inner cover and the cooling container.

[0027] Figure 3 This is a cross-sectional schematic diagram of other structures of the cooking appliance of this utility model.

[0028] Figure 4 This is a cross-sectional schematic diagram of another structure of the cooking appliance of this utility model.

[0029] Figure 5 is a schematic view of the air outlet portion in the cooling container according to the present application.

[0030] Figure 6 is a schematic view of other structure of the air outlet portion in the cooling container according to the present application.

[0031] Figure 7 is a schematic view of other structure of the air outlet portion in the cooling container according to the present application.

[0032] Figure 8 is a schematic view of other structure of the air outlet portion in the cooling container according to the present application.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, housing; 2, inner pot; 3, outer cover; 4, fan; 5, housing inner pipe; 6, outer cover inner pipe; 7, pipe; 8, air outlet portion; 9, inner cover; 10, cooling container; 11, first sealing member; 12, second sealing member. DETAILED DESCRIPTION

[0035] The following will be described in detail based on the drawings for the structure of the present application, but the following description is not used to limit the present application, and each constituent element in the technical solution can be changed, replaced, combined, deleted, etc. without departing from the main idea of the present application.

[0036] <Structure of the rice cooking appliance>

[0037] In Figure 1 , a front sectional view of the rice cooking appliance according to the present application is shown, which can be an electric rice cooker as a typical example. As shown in Figure 1 , the rice cooking appliance 100 includes a housing 1 having an internal space and an open upper end, the housing 1 constituting an outer shell of the rice cooking appliance, and an inner pot 2 having an open upper end, the inner pot 2 being capable of being placed in the internal space of the housing 1.

[0038] As shown in Figure 1 , the rice cooking appliance further has an outer cover 3, a portion of the outer cover 3 being installed in a swingable manner to the housing 1 by a hinge or the like, and by swinging of the outer cover 3, the open upper end of the housing 1 can be closed, whereby the outer cover 3 can close the housing 1 or open the housing 1. Alternatively, the outer cover 3 can be provided in a detachable manner with respect to the housing 1, in which case, it is convenient to pour out the condensed water in the cooling container 10 described later.

[0039] The rice cooking appliance further has a fan 4, the fan 4 being provided in the internal space of the housing 1, the fan 4 being connected to the outside for sucking in outside air, the outside air being used as a cooling air flow for cooling and depressurizing the inner pot 2.

[0040] <Inner pot cooling and pressure reduction structure>

[0041] The inner pot 2 is a component used to hold rice and transfer heat to the rice when the cooking appliance is working. Whether the inner pot 2 can cool down quickly will affect the working efficiency of the cooking appliance. Therefore, it is important to set up a structure for the inner pot 2 that can cool down quickly.

[0042] like Figure 1 As shown, a fan 4 is installed inside the housing 1. The fan 4 can be positioned on the side of the inner pot 2, that is, in the vertical direction, the fan 4 is positioned corresponding to the side wall of the inner pot 2. The fan 4 can be, for example, a turbo fan. Turbo fans can generate the required airflow in a smaller volume, thus avoiding the need for a large fan and simplifying the layout. Furthermore, an air guide shroud can be provided on the side of the housing 1 to guide the outside air drawn in by the fan 4. Alternatively, it can be as follows... Figure 3 As shown, the fan 4 can be positioned below the inner pot 2, including both the case where it is positioned directly below the inner pot 2 and the case where it is positioned to the lower side of the inner pot 2. Therefore, the fan 4 can be located either on the side or at the bottom of the inner pot 2 relative to the inner pot 2.

[0043] When the fan 4 is working, outside air is drawn into the interior of the cooking appliance as a cooling airflow. As a component for guiding the cooling airflow, there is a pipe 7 in the housing 1, which is used to guide the outside air (cooling airflow) drawn in by the fan 4 into the cooling container 10 of the outer cover 3.

[0044] Specifically, such as Figure 1 As shown, the pipe 7 includes an inner pipe 5 inside the housing and an inner pipe 6 inside the outer cover. When the outer cover 3 closes the housing 1, the inner pipe 5 and the inner pipe 6 inside the outer cover are joined together. The inner pipe 5 is disposed inside the housing 1, with one end connected to the air outlet of the fan 4, and the other end opening at the part of the housing 1 opposite to the outer cover 3. Thus, outside air introduced by the fan 4 enters the inner pipe 5 through the air outlet of the fan 4.

[0045] exist Figure 3 , Figure 4 In the structure shown, fan 4 is a fan other than a turbo fan (e.g., an axial fan), and there is a guide plate channel between fan 4 and the duct 5 inside the housing. The guide plate channel is located at the air outlet of fan 4 and smoothly narrows to the duct diameter of the duct 5 inside the housing through an arc surface, guiding and concentrating the air blown out by fan 4 into the duct, thus playing a guiding role. The guide plate channel is typically used for the air outlet of fans other than turbo fans.

[0046] The outer lid inner duct 6 is provided in the outer lid 3, and one end thereof is opened at a portion of the outer lid 3 opposite to the case 1, and the one end of the outer lid inner duct 6 is located in a matching position with the other end of the case inner duct 5, that is, the other end of the case inner duct 5 is opposite to and connected with the one end of the outer lid inner duct 6 when the outer lid 3 closes the case 1. The other end of the outer lid inner duct 6 extends into the cooling container 10. Thus, when the outer lid 3 closes the case 1, the outside air entering the case inner duct 5 can enter the outer lid inner duct 6 and be guided into the cooling container 10 through the outer lid inner duct 6.

[0047] The first seal 11 is included in at least one of the case 1 and the outer lid 3, and seals the joint of the case inner duct 5 and the outer lid inner duct 6. The first seal 11 seals the joint between the case inner duct 5 and the outer lid inner duct 6 when the outer lid 3 closes the case 1. When the first seal 11 is provided in one of the case 1 and the outer lid 3, preferably, the first seal 11 completely covers the joint between the case inner duct 5 and the outer lid inner duct 6, and the other one (the member not provided with the first seal 11) of the case 1 and the outer lid 3 is provided with a recess for the first seal 11 to enter. Thus, when the outer lid 3 closes the case 1, the joint between the case inner duct 5 and the outer lid inner duct 6 can be reliably sealed. Alternatively, when the first seal 11 is provided in both the case 1 and the outer lid 3, the first seal 11 provided in the outer lid 3 abuts against (and is slightly compressed by) the first seal 11 provided in the case 1 when the outer lid 3 closes the case 1, and the sealing effect can also be reliably achieved to prevent the guided outside air from leaking from the joint between the case inner duct 5 and the outer lid inner duct 6.

[0048] The following describes the cooling container 10 provided in the outer lid 3. The cooling container 10 is provided in a portion of the outer lid 3 opposite to the case 1, and is opposite to the opening of the inner pot 2 above the inner pot 2 when the outer lid 3 closes the case 1.

[0049] Figure 2 is a schematic view of the cooling container 10. As shown in the figure, the cooling container 10 is provided in the outer lid 3, and is opposite to the opening of the inner pot 2 above the inner pot 2 when the outer lid 3 closes the case 1. Figure 2As shown, the cooling container 10 can be a space recessed from the lower surface of the outer cover 3 (the surface opposite to the shell 1) in a direction away from the shell 1. A second seal 12 is provided in this space, surrounding the space (along its entire circumference). The outer cover 3 and the second seal 12 form a cooling container 10 with an opening 13 at the bottom. The cooking appliance also has an inner cover 9, which can be detachably closed to close the opening 13 at the bottom of the cooling container 10. Alternatively, the cooling container 10 can be described as a space defined by the outer cover 3, the second seal 12, and the inner cover 9. The second seal 12 is located between the inner cover 9 and the outer cover 3, and the second seal 12 is used to prevent outside air introduced into the cooling container 10 from leaking into the inner pot 2.

[0050] And, as Figure 1 As shown, the cooling container 10 is formed to cover the opening of the inner pot 2, for example, the area of ​​the cooling container 10 in a top view is slightly larger than the area of ​​the opening of the inner pot 2. Therefore, when the second seal 12 is arranged in the space surrounding the cooling container 10, the area formed by the second seal 12 is approximately equal to the size of the opening of the inner pot 2, and the second seal 12 can abut against the periphery of the opening of the inner pot 2 when the outer cover 3 closes the shell 1. By arranging the inner cover 9 and the second seal 12 to close the inner pot 2 when the outer cover 3 closes the shell 1, it is possible to prevent hot air inside the inner pot 2 from escaping and affecting the taste of the rice.

[0051] Figure 5 This is a schematic diagram showing the air outlet 8 inside the cooling container 10. The duct 7 has an air outlet 8 extending into the cooling container 10, such as... Figure 5 As shown, the other end of the inner pipe 6 of the outer cover extends into the interior of the cooling container 10 as an air outlet 8. The air outlet 8 has an air outlet 14 at its top, which is opposite to the opening of the inner pot 2. More specifically, the air outlet 14 is opposite to the opening of the inner pot 2 through the inner cover 9.

[0052] Therefore, after the cooking appliance finishes working, the fan 4 starts. By installing a fan on the side or bottom of the housing 1, it can quickly draw outside air into the interior of the housing 1 when cooling and depressurization are required. When a turbine fan is used, the air volume can be further increased. At the same time, with the large-diameter pipe 7, even greater air volume can be obtained.

[0053] By providing a first seal 11 at the junction of the inner pipe 5 and the outer cover inner pipe 6, a closed pipe structure is formed, reliably ensuring the airtightness of the outside air within the pipe 7. Outside air is introduced into the cooling container 10 via the pipe 7. The cooling container 10 is positioned opposite the opening of the inner pot 2 through the inner cover 9. The outside air exchanges heat with the higher-temperature gas in the inner pot 2 within the cooling container 10, thereby rapidly reducing the temperature inside the inner pot.

[0054] The cooling container 10 is formed at the opening of the inner pot 2, so that the ambient air can exchange heat with the high-temperature gas in the inner pot 2 in a large range, thereby further improving the speed of cooling and pressure reduction. In addition, since the cooling container 10 is located above the inner pot 2, it is convenient to exchange heat with the rising hot air in the inner pot 2. Compared with the structure in which the fan directly blows the side wall of the inner pot 2 to cool the inner pot 2, the structure of the present application can significantly improve the efficiency of cooling and pressure reduction.

[0055] By arranging the cooling container 10, which is a container with a certain space, the area and residence time of the ambient air introduced into the cooling container 10 in contact with the cooling container 10 itself can be improved, and the efficiency of heat exchange with the inner pot 2 can be improved.

[0056] The utility model is not limited to the above structure, as shown in the figure, the shape of the air outlet part 8 in the cooling container 10 can be changed as follows. Figures 6-8

[0057] As shown in the figure, the air outlet part 8 can also be reduced in diameter towards the inner pot 2, and the air outlet 14 is integrally opened at the top end of the air outlet part 8. Figure 6 As shown in the figure, the air outlet part 8 can also be reduced in diameter towards the inner pot 2, and the air outlet 14 is integrally opened at the top end of the air outlet part 8.

[0058] Figure 7 As shown in the figure, the air outlet part 8 can also be reduced in diameter towards the inner pot 2, and the air outlet 14 is integrally opened at the top end of the air outlet part 8.

[0059] As shown in the figure, the air outlet part 8 can also be reduced in diameter towards the inner pot 2, and the air outlet 14 is integrally opened at the top end of the air outlet part 8. Figure 8 In the structure shown in the figure, the area of the air outlet part 8 after being expanded in diameter is more than 80% of the area of the cooling container in plan view. Figure 8

[0060] In addition, there is actually a gap between the cooling container 10 and the outer cover 3, and part of the air in the cooling container 10 can be discharged from the gap as the ambient air is introduced into the cooling container 10. Or an opening can be provided to discharge the gas to facilitate the introduction of ambient air.

[0061] The rice cooking appliance can automatically control the start of the fan 4.

[0062] <Effects>

[0063] As described above, according to the structure of the present application, the fan 4 sucks the ambient air into the cooling container 10, so that the ambient air exchanges heat with the hot air at the opening of the inner pot 2 in the cooling container 10. Compared with the cooling method in which the fan directly blows the inner pot, the inner pot can be cooled more quickly. ​​​

[0064] In addition, in the present application, the pipeline is divided into the pipeline in the shell and the pipeline in the outer cover, so that the space in the outer cover can be utilized and the space in the shell is not occupied too much. By adopting the turbine fan, the advantages of small volume, strong wind power and fast flow rate can be obtained, and the problem of occupying too much space in the shell can be further solved. By setting the air outlet 8 to extend in the cooling container 10 and having the air outlet 14, the contact area and residence time of the external air with the cooling container are increased, and the cooling efficiency is improved. The external air can be fully utilized for heat exchange with the inner pot 2.

[0065] In addition, compared with the structure of setting the heat sink on the outer cover in the prior art, the structure of the present application is simpler. Moreover, the fan 4 can be automatically controlled to start by the rice cooking appliance, and the user does not need to manually operate, solving the problem of manually starting the fan to reduce the pressure after the cooking is powered off.

Claims

1. A rice cooking appliance, characterized by comprising: Comprising: a housing having an open upper end and an internal space; a inner pot having an open upper end, the inner pot being capable of being placed in the internal space of the housing; an outer cover capable of closing or opening the housing, the outer cover having a cooling container, the cooling container being opposite to the open upper end of the inner pot when the outer cover closes the housing; a fan disposed in the internal space of the housing, the fan being connected to the outside for sucking outside air; and a duct for guiding the outside air sucked by the fan into the cooling container.

2. The rice cooker according to claim 1, wherein: the cooling container has an opening at a lower portion thereof, the rice cooker further comprises an inner cover for closing the opening at the lower portion of the cooling container.

3. The rice cooker according to claim 1, wherein: the duct comprises a housing inner duct and an outer cover inner duct, the housing inner duct and the outer cover inner duct being engaged together when the outer cover closes the housing, a first seal is included in at least one of the housing and the outer cover, the first seal sealing the engagement between the housing inner duct and the outer cover inner duct.

4. The rice cooker according to claim 2, wherein: a second seal is included between the inner cover and the outer cover.

5. The rice cooker according to claim 1, wherein: a wind guide cover is provided at a side of the housing, the wind guide cover guiding the outside air sucked by the fan.

6. The rice cooker according to claim 4, wherein: the inner cover and the second seal close the inner pot when the outer cover closes the housing.

7. The rice cooker according to claim 1, wherein: the duct has an air outlet portion extending into the cooling container, the air outlet portion has an air outlet opening at a top end thereof, the air outlet opening being opposite to the open upper end of the inner pot.

8. The rice cooker according to claim 7, wherein: the air outlet portion expands in diameter as it approaches the inner pot, the air outlet opening being a whole opening at the top end of the air outlet portion.

9. The rice cooker according to claim 7, wherein: the air outlet portion contracts in diameter as it approaches the inner pot, the air outlet opening being a whole opening at the top end of the air outlet portion.

10. The rice cooker according to claim 7, wherein: the air outlet portion expands in diameter as it approaches the inner pot, the air outlet opening being a mesh opening over the whole range of the top end of the air outlet portion.

11. The rice cooker according to claim 10, wherein: in a plan view, the area of the air outlet portion after expanding in diameter is more than 80% of the area of the cooling container.

12. The rice cooker according to claim 1, wherein: the fan is a turbo fan.

13. The rice cooker according to claim 1, wherein: the fan is located at a side of the inner pot or at a bottom of the inner pot with respect to the inner pot.

14. The rice cooker according to claim 1, wherein: the fan has a cover plate channel for guiding air.

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