Rice cooking utensil

By combining air cooling and mist cooling, and using a fan and mist cooling device to quickly cool the inner pot, the problem of poor cooling effect of existing cooking utensils is solved, and an efficient and convenient inner pot cooling effect is achieved.

CN223585694UActive Publication Date: 2025-11-25PANASONIC APPLIANCES (CHINA) CO LTD +1
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Patent Information

Application Number
CN202520261286.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-11-25
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing cooking appliances have poor cooling performance, especially the inner pot, which is not ideal. Furthermore, the cooling method is limited and takes up a lot of space in the outer shell.

Method used

The inner pot is cooled by a combination of air cooling and mist cooling. Outside air is drawn in by a fan and introduced into the cooling container through air cooling pipes. At the same time, water mist is sent to the cooling container through mist cooling pipes using a mist cooling device, where it exchanges heat with the inner pot along with the outside air.

Benefits of technology

It achieves rapid and effective cooling of the inner pot, improves cooling efficiency, reduces the shell space occupied by cooling, simplifies the operation process, and avoids the need to manually start the cooling device.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a rice cooking appliance, which comprises 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 that closes the housing or opens the housing, the outer cover having a cooling container that faces 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 is used for sucking outside air; the fog cooling device is provided with a water tank for accommodating water; the air cooling pipeline is used for guiding the outside air sucked by the fan into the cooling container; and a mist cooling pipeline connecting the mist cooling device and the cooling container, the rice cooking appliance is configured as follows: water in the water tank is supplied to the cooling container through the mist cooling pipeline, or an atomizing sheet for atomizing the water in the water tank is arranged in the mist cooling device, and water mist atomized by the atomizing sheet is supplied to the cooling container through the mist cooling pipeline. Based on the rice cooking utensil, the inner pot can be rapidly cooled.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cooking utensils, specifically, a kind of cooking utensils of fast cooling inner pot. 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, rely on wind power to cool heating disc and inner pot, outer pot to reduce pressure, but there are problems such as poor cooling effect, too much space occupied by shell.

[0003] In addition, there are technical solutions such as patent document 2, cooling device is fixed on one side of upper cover, when pressure reduction is needed, liquid cooling medium such as water stored in shell water tank is supplied into cooling device, heat exchange occurs, thereby reducing the temperature in the pot, but there are still problems such as poor cooling effect and single cooling mode.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT DOCUMENTS

[0006] Patent document 1: CN220369835U

[0007] Patent document 2: CN109770705A CONTENT OF UTILITY MODEL

[0008] PROBLEMS TO BE SOLVED BY THE UTILITY MODEL

[0009] The utility model provides a kind of cooking utensils in view of above-mentioned situation, it can quickly cool inner pot.

[0010] SCHEMES FOR SOLVING PROBLEMS

[0011] The utility model discloses a cooking utensil, its characterized in that, including: the casing, its upper end is open, has internal space, the inner pot, its upper end opening, this inner pot can place in the internal space of casing, the outer cover, it can close the casing or make the casing open, this outer cover has cooling container, when this cooling container is opposite with the opening of the inner pot in the upper of the inner pot when the outer cover closes the casing, the fan, it is arranged in the inside of casing, is used for inhaling external air, the fog cooling device, it has the water tank of water containing, the air cooling pipeline, it is used for leading the external air of inhaling by the fan into cooling container, and the fog cooling pipeline is connected with cooling container, and the cooking utensil is constituted as follows structure: the water in the water tank is supplied to cooling container through the fog cooling pipeline, or, in the fog cooling device, there is atomizing piece for atomizing the water in the water tank, and the water mist atomized by the atomizing piece is supplied to cooling container through the fog cooling pipeline.

[0012] Preferably, the air cooling pipeline and the fog cooling pipeline are integrated in the middle, and the external air and the water mist are supplied to the cooling container through the shared pipeline.

[0013] Preferably, the air cooling pipeline and the fog cooling pipeline independently extend into the cooling container.

[0014] Preferably, the fog cooling device is arranged above the cooling container in the outer cover, or is arranged laterally to the inner pot in the casing, and a water pump is arranged in the middle of the fog cooling pipeline, and the water in the water tank is supplied to the cooling container by the water pump.

[0015] Preferably, the fog cooling device is arranged above the cooling container in the outer cover, or is arranged laterally to the inner pot in the casing, and the cooking utensil further has a water mist fan for supplying the water mist to the cooling container, and the water mist atomized by the atomizing piece is sent to the cooling container by the water mist fan.

[0016] Preferably, the water tank has a drain hole at the bottom, and an automatic water dispensing component is installed in the drain hole. The automatic water dispensing component has: a water tank sealing plate located inside the water tank and having a size capable of covering the drain hole; a rod member passing through the drain hole, the cross-sectional area of ​​the rod member being smaller than the size of the drain hole and the length being greater than the through length of the drain hole, with the water tank sealing plate at one end of the rod member; and a stop portion located outside the water tank, with the stop portion at the other end of the rod member; a spring member located between the bottom of the water tank and the stop portion, applying force in a direction that moves the water tank away from the stop portion; the mist cooling device has a water tank bracket for mounting the water tank, the water tank bracket having a protrusion, and when the water tank is mounted on the water tank bracket, the protrusion presses against the stop portion in a direction that overcomes the force applied by the spring member.

[0017] Preferably, the water tank bracket has a space located below the drain hole, the protrusion is located within the space, and the atomizing plate is exposed in the space.

[0018] Preferably, the mist cooling pipe is connected to the cooling container via an atomizing nozzle, and the cross-sectional area of ​​the atomizing nozzle decreases as it moves toward the cooling container.

[0019] Preferably, in the vertical direction, the mist cooling pipe is located between the water tank and the cooling container.

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

[0021] Preferably, the cooling container has an opening at the bottom, and the cooking appliance also has an inner cover that can be removably closed to close the opening at the bottom of the cooling container.

[0022] Preferably, the water mist fan and the main fan are the same fan.

[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 schematic diagram of the fog cooling device.

[0028] Figure 4is a sectional view of other structure of the rice cooking appliance of the utility model.

[0029] Figure 5 is a sectional view of other structure of the rice cooking appliance of the utility model.

[0030] Explanation of reference signs

[0031] 1, shell; 2, inner pot; 3, outer cover; 4, fan; 5, shell inner pipeline; 6, outer cover inner pipeline; 7, shell inner pipeline; 8, air outlet part; 9, inner cover; 10, cooling container, 11, first sealing member; 12, second sealing member; 13, opening part; 14, air outlet; 15, fog cooling device; 16, fog cooling pipeline; 17, water pump; 18, atomizing nozzle; 19, air cooling pipeline; 20, water tank cover plate; 21, water tank; 22, water tank support; 23, automatic water outlet component; 24, protrusion; 25, atomizing sheet cover plate; 26, atomizing sheet; 27, sealing washer; 28, hose connecting piece; 29, outer cover cover; 30, water leakage hole; 31, elastic component; 32, water tank sealing plate; 33, rod component; 34, stop part; 35, space; 36, water mist outlet. DETAILED DESCRIPTION

[0032] The following based on the drawings for the structure of the utility model is specifically explained, but the following description is not used to limit the utility model, can be changed, replaced, combined, deleted etc. to the technical scheme in each constituting element on the premise of not departing from the main idea of the application.

[0033] [General structure of rice cooking appliance]

[0034] In Figure 1 The front view of the rice cooking appliance of the present application is shown, as a typical example of the rice cooking appliance, it can be electric rice cooker. As Figure 1 Indicated, the rice cooking appliance 100 includes: shell 1, its upper end is open, has internal space, shell 1 constitutes the outer shell of the rice cooking appliance;And inner pot 2, its upper end is open, the inner pot 2 can be placed in the internal space of shell 1.

[0035] As Figure 1 Indicated, the rice cooking appliance also has outer cover 3, a part of outer cover 3 is installed on shell 1 by hinge or the like component in a swingable manner, by the swing of outer cover 3, the opening of the upper end of shell 1 can be closed, thus, outer cover 3 can close shell 1 or make shell 1 open. Or it can also be configured that outer cover 3 is arranged in a detachable manner relative to shell 1, in this case, it is convenient to pour out the water condensed by water mist in the cooling container 10 described later.

[0036] The cooker further has a fan 4 provided in the inside of the housing 1, which is connected to the outside for sucking outside air as cooling air for cooling and depressurizing the inner pot 2.

[0037] <Structure for cooling and depressurizing the inner pot>

[0038] The inner pot 2 is a member for containing rice and transferring heat to the rice when the cooker is working. Whether the inner pot 2 can be cooled and depressurized quickly or not will affect the working efficiency of the cooker. Therefore, it is important to provide the inner pot 2 with a structure capable of being cooled and depressurized quickly. In the present application, the inner pot 2 can be reliably and quickly cooled and depressurized by using both air cooling and mist cooling.

[0039] As shown in Figure 1 , the fan 4 is provided in the inside of the housing 1. The fan 4 can be provided beside the inner pot 2, i.e. in the up-down direction, at a position corresponding to the side wall of the inner pot 2. The fan 4 is, for example, a turbo fan, which can produce the required air volume with a small volume, thereby avoiding the large size of the fan and simplifying the layout. Alternatively, the fan 4 can be provided below the inner pot 2, including the case where it is provided directly below the inner pot 2 and the case where it is provided laterally below the inner pot 2.

[0040] When the fan 4 is working, outside air is sucked into the inside of the cooker as cooling air. As a member for guiding the cooling air, the housing 1 has an air cooling pipe 19 for guiding the outside air (cooling air) sucked by the fan 4 into the cooling container 10 of the outer cover 3. Figure 1 As shown in , the air cooling pipe 19 includes a housing inner pipe 5 and an outer cover inner pipe 6.

[0041] As shown in Figure 1 , the cooker further has a mist cooling device 15 having a water tank 21 (see Figure 3 ) for containing water, and a mist cooling pipe 16 connecting the mist cooling device 15 with the cooling container 10. In the structure shown in Figure 1 , the mist cooling pipe 16 has a housing inner pipe 7 and an outer cover inner pipe 6, and the housing inner pipe 7 of the mist cooling pipe 16 and the housing inner pipe 5 of the air cooling pipe 19 are merged into one housing inner pipe in the middle. The outside air and water mist are supplied to the cooling container 10 through the shared pipe.

[0042] The inner casing pipe 5 is arranged in the casing 1, one end of which is connected to the air outlet of the fan 4, and the other end of which is connected to the inner casing pipe 7 and then opens at the position of the casing 1 opposite to the outer cover 3. Thus, the ambient air introduced by the fan 4 enters the inner casing pipe 5 through the air outlet of the fan 4. The fan 4 can be other fans (for example, axial flow fan) besides the turbo fan, and there is a cover passage between the fan 4 and the inner casing pipe 5, which is arranged at the air outlet of the fan 4 and is tapered to the pipe aperture of the inner casing pipe 5 through the arc surface, so as to guide the air blown by the fan 4 into the pipe and play a guiding role. The cover passage is usually arranged at the air outlet of the fan besides the turbo fan. Alternatively, a wind guide cover can be arranged at the side of the casing 1, which is used to guide the ambient air sucked by the fan 4.

[0043] The inner casing pipe 7 is arranged in the casing 1, one end of which is connected to the water mist outlet of the fog cooling device 15, and the other end of which is connected to the inner casing pipe 5 and then opens at the position of the casing 1 opposite to the outer cover 3. Thus, the water mist generated by the fog cooling device 15 enters the inner casing pipe 7 through the water mist outlet of the fog cooling device 15.

[0044] When the outer cover 3 closes the casing 1, the inner casing pipes (including the inner casing pipe 5 and the inner casing pipe 7, the same below) and the inner cover pipe 6 are connected together. The inner cover pipe 6 is arranged in the outer cover 3, one end of which opens at the position of the outer cover 3 opposite to the casing 1, and the other end of which extends into the cooling container 10. Thus, when the outer cover 3 closes the casing 1, the ambient air entering the inner casing pipe 5 and the water mist entering the inner casing pipe 7 can enter the inner cover pipe 6 and be introduced into the cooling container 10 through the inner cover pipe 6.

[0045] The first seal 11 is included in at least one of the housing 1 and the lid 3, and seals the joint between the housing inner pipe and the lid inner pipe 6. The first seal 11 seals the joint between the housing inner pipe and the lid inner pipe 6 when the lid 3 closes the housing 1. When the first seal 11 is provided in one of the housing 1 and the lid 3, preferably, the first seal 11 completely covers the joint between the housing inner pipe and the lid inner pipe 6, and the other one (the member in which the first seal 11 is not provided) of the housing 1 and the lid 3 is provided with a recess into which the first seal 11 enters. Thus, the joint between the housing inner pipe and the lid inner pipe 6 can be reliably sealed when the lid 3 closes the housing 1. Alternatively, when the first seal 11 is provided in both of the housing 1 and the lid 3, the first seal 11 provided in the lid 3 abuts against (and is slightly compressed by) the first seal 11 provided in the housing 1 when the lid 3 closes the housing 1, and the sealing effect can be reliably achieved, preventing the leakage of outside air and water mist from the joint between the housing inner pipe and the lid inner pipe 6.

[0046] In Figure 1 the structure shown in the drawing, an example in which the housing inner pipe 5 and the housing inner pipe 7 are merged into one pipe midway is shown, but alternatively, the housing inner pipe 5 and the housing inner pipe 7 can be independent pipes, and the lid 3 can have lid inner pipes connected to the housing inner pipe 5 and the housing inner pipe 7, respectively, and both of which communicate with the cooling container.

[0047] The cooling container 10 provided in the lid 3 will be described below. The cooling container 10 is provided in the lid 3 at a position opposite to the housing 1, and is positioned above the inner pot 2 and opposite to the opening of the inner pot 2 when the lid 3 closes the housing 1.

[0048] Figure 2 is a schematic view of the cooling container 10. As Figure 2 shown, the cooling container 10 can be a space recessed from the lower surface of the lid 3 (the surface opposite to the housing 1) in a direction away from the housing 1, and the second seal 12 is provided in the space so as to surround the space (along the entire circumference of the space). The cooling container 10 having the opening 13 in the lower portion is formed by the lid 3 and the second seal 12, and the rice cooking appliance further has the inner lid 9 which closes the opening 13 in the lower portion of the cooling container 10 in a detachable manner. Alternatively, the cooling container 10 can be a space divided by the lid 3, the second seal 12, and the inner lid 9. The second seal 12 is provided between the inner lid 9 and the lid 3, and prevents the outside air and water mist introduced into the cooling container 10 from leaking into the inner pot 2 from the cooling container 10.

[0049] Also, as Figure 1As 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.

[0050] like Figure 2 As shown, the inner pipe 6 of the outer cover 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.

[0051] <Structure of the Fog Cooling Device>

[0052] As a device for supplying water mist to the cooling container 10, in Figure 3 The diagram shows a schematic representation of the structure of the mist cooling device 15 of this application. Figure 3 As shown, the mist cooling device 15 is equipped with an atomizing plate 26 for atomizing the water in the water tank 21, and the water mist atomized by the atomizing plate 26 is supplied to the cooling container 10 via the mist cooling pipe 16. The cooking appliance may also have a water mist fan for supplying water mist to the cooling container 10, and the water mist atomized by the atomizing plate 26 is sent to the cooling container 10 by the water mist fan.

[0053] The water tank 21 of the mist cooling device 15 is located on the side wall of the housing 1 or on the upper part of the outer cover 3, thereby exposing the water tank cover 20 of the water tank 21 to the outer side of the cooking appliance, making it convenient for the user to open the water tank cover 20 to add water to the water tank 21.

[0054] In addition, such as Figure 3 As shown, a water tank 21 has a water leakage hole 30 at the bottom, and an automatic water discharge component 23 is installed in the water leakage hole 30. The automatic water discharge component 23 has: a water tank sealing plate 32, which is located inside the water tank 21 and has a size that can cover the water leakage hole 30; a rod component 33, which passes through the water leakage hole 30, the cross-sectional area of ​​the rod component 33 is smaller than the size of the water leakage hole 30 and the length is greater than the through length of the water leakage hole 30, and the water tank sealing plate 32 is located at one end of the rod component 33; and a stop part 34, which is located outside the water tank 21, and the stop part 34 is located at the other end of the rod component 33.

[0055] A spring member 31 is provided between the bottom of the water tank 21 and the stop portion 34. The spring member 31 applies force in a direction that moves the water tank 21 away from the stop portion 34. Figure 3 In the process, the elastic member 31 applies downward force to the stop portion 34. When the water tank 21 is removed from the mist cooling device 15, under the action of the elastic member 31, the stop portion 34 at the other end of the rod member 33 moves downward away from the bottom of the water tank 21. As a result, the water tank sealing plate 32 at one end of the rod member 33 is moved to press against the bottom surface inside the water tank 21. This seals the water leakage hole 30 of the water tank 21, preventing water from flowing out from the bottom of the water tank 21 when it is removed.

[0056] like Figure 3 As shown, the mist cooling device 15 has a water tank bracket 22 for mounting the water tank 21. The water tank bracket 22 has a protrusion 24. When the water tank 21 is mounted on the water tank bracket 22, the protrusion 24 presses against the stop portion 34 in the direction that overcomes the force applied by the elastic member 31. Figure 3 In the middle, the protrusion 24 exerts force upward on the stop portion 34. Therefore, when the water tank 21 is installed on the water tank bracket 22, the protrusion 24 overcomes the force exerted by the elastic member 31 and lifts the stop portion 34. As the stop portion 34 is lifted, the water tank sealing plate 32 located at one end of the rod member 33 is driven and separated from the bottom surface inside the water tank 21. Thus, when the water tank 21 is installed on the water tank bracket 22, water in the water tank 21 can flow out from the drain hole 30.

[0057] Similarly, Figure 3 As shown, the water tank bracket 22 has a space 35 located below the drain hole 30. A protrusion 24 is located within the space 35. An atomizing plate 26 is installed on the portion of the water tank bracket 22 below the drain hole 30 and is fixed to the water tank bracket 22 by an atomizing plate cover 25, with the atomizing plate 26 exposed in the space 35. Thus, when water flows out of the drain hole 30 of the water tank 21, the flowing water is collected in the space 35 and comes into contact with the atomizing plate 26.

[0058] A water mist outlet 36 of a mist-cooling device 15 is provided on the water tank bracket 22. The water mist outlet 36 is connected to the space 35, so that the water mist generated by the atomizing plate 26 in the space 35 can be discharged through the water mist outlet 36. The hose connector 28 is installed in the water mist outlet 36 through the sealing gasket 27 using the outer cover 29. The hose connector 28 is connected to the mist-cooling pipe 16 (or air-cooling pipe 19). Thus, the water mist can enter the mist-cooling pipe 16 through the water mist outlet 36.

[0059] like Figure 3As shown, the fog cooling device 15 is provided with a fan 4, in this case, the fan 4 not only serves as a fan for sucking external air, but also as a water mist fan for sending the water mist generated by the atomizing sheet 26 to the fog cooling pipeline 16 (i.e. the fan 4 and the water mist fan are the same fan). The fog cooling pipeline 16 is provided with an atomizing nozzle 18 connected to the cooling container 10, the fog cooling pipeline 16 is connected to the cooling container 10 via the atomizing nozzle 18, and the atomizing nozzle 18 is tapered as it goes towards the inside of the cooling container 10, i.e. the cross-sectional area of the atomizing nozzle 18 decreases as it goes towards the cooling container 10. In this way, the flow rate of the water mist when it enters the cooling container 10 can be increased, and the cooling effect can be enhanced.

[0060] Since the fan 4 at this time serves as the power source for both the air cooling and the fog cooling, in addition to the water mist entering the pipeline from the space 35, external air is also sucked into the pipeline from the space 35 by the fan 4, at this time Figure 3 The pipeline connected to the hose connector 28 in the above-mentioned

[0061] It can also be that the fan 4 in the above-mentioned Figure 4 is replaced by a separately provided independent water mist fan. In this case, the rice cooking appliance has an independent fog cooling pipeline 16 and an atomizing nozzle 18.

[0062] As shown in the above-mentioned Figure 5 and Figure 4 , the fog cooling device 15 is arranged above the cooling container 10 within the outer cover 3, or is arranged to the side of the inner pot 2 within the housing 1.

[0063] The fog cooling device 15 can also be configured to not generate water mist, but to supply water in the water tank to the cooling container 10 via the fog cooling pipeline 16. In this case, as shown in the above-mentioned Figure 5 , Figure 4 , it can also be configured to be provided with a water pump 17 in the middle of the fog cooling pipeline 16, and to supply water in the water tank to the cooling container 10 by means of the water pump 17. As shown in the above-mentioned ​ , it is preferable to be configured such that, in the up-down direction, the fog cooling pipeline 16 is located between the fog cooling device 15 (water tank) and the cooling container 10.

[0064] After the cooling and pressure reduction is completed, the inner cover 9 can be removed, the water in the cooling container 10 can be poured out, and water can be replenished into the water tank.

[0065] In this way, after the operation of the rice cooking appliance is completed, the fan 4 is started, by arranging the fan on the side surface or the bottom surface of the housing 1, external air can be quickly sucked into the inside of the housing 1 when cooling and pressure reduction is needed, in the case of using a turbo fan, the air volume can be further increased, and at the same time, in cooperation with the large-aperture air cooling pipeline 19, a larger air volume can be obtained.

[0066] By setting the first seal 11 at the joint of the inner pipe 5 of the shell and the inner pipe 6 of the outer cover, a closed pipe structure is formed, and the air tightness of the outside air in the air cooling pipe 19 is reliably ensured. Via the air cooling pipe 19, the outside air is sent into the cooling container 10 opposite the opening of the inner pot 2 through the inner cover 9, and the outside air exchanges heat with the high-temperature gas in the inner pot 2 in the cooling container 10.

[0067] In addition, while cooling by air cooling, the fog cooling device 15 generates water mist and sends the water mist to the cooling container 10, or the fog cooling device 15 directly sends the water in the water tank to the cooling container 10. The water mist (or water) exchanges heat with the high-temperature gas in the inner pot 2 through the inner cover 9 together with the outside air. In this way, by using air cooling and water cooling together, the temperature in the inner pot can be quickly reduced.

[0068] The cooling container 10 is formed opposite (preferably throughout) the opening of the inner pot 2, so that the outside air, water mist (or water) can exchange heat with the high-temperature gas in the inner pot 2 in a larger 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 of cooling the side wall of the inner pot 2, the structure of the present application can significantly improve the efficiency of cooling and pressure reduction.

[0069] By setting the cooling container 10 as a container with a certain space, the area and residence time of the outside air, water mist (or water) introduced into the cooling container 10 in contact with the cooling container 10 itself can be increased, and the efficiency of heat exchange with the inner pot 2 can be improved.

[0070] In addition, there is actually a gap between the cooling container 10 and the outer cover 3, which can discharge part of the air in the cooling container 10 from the gap as the outside air is introduced into the cooling container 10. Or an opening can be provided to discharge the gas to facilitate the introduction of the outside air.

[0071] The rice cooking appliance can automatically control the start of the fan 4 and the fog cooling device 15.

[0072] <Effects>

[0073] As described above, according to the structure of the present application, the fan 4 sucks the outside air to the cooling container 10, so that the outside air exchanges heat with the hot air in the inner pot 2 at the opening. Compared with the cooling method of directly blowing the fan to the inner pot, the inner pot can be cooled more quickly. In addition, by combining the air cooling and the fog cooling, the water mist (or water) exchanges heat with the hot air in the inner pot 2 in the cooling container 10 together with the outside air, compared with the structure of directly cooling the outer side wall of the inner pot 2, the contact area and the residence time of the outside air and the water mist (or water) with the cooling container can be increased, and the cooling efficiency can be improved. Compared with the structure of the air cooling with single cooling method, by combining the fog cooling and the air cooling, the cooling method is various, and the efficiency of the cooling and pressure reduction can be further improved.

[0074] 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 too much space in the shell is not occupied. 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 part 8 extending in the cooling container 10 and having the air outlet 14, the contact area and the residence time of the outside air with the cooling container are increased, and the cooling efficiency is improved. The outside air can be fully utilized to exchange heat with the inner pot 2.

[0075] In addition, compared with the structure of the existing technology of setting the heat sink on the outer cover, the structure of the present application is simpler. Moreover, the fan 4 and the fog cooling device 15 can be automatically controlled by the rice cooking appliance, and the user does not need to manually operate, so that the problem of manually starting the fan and the fog cooling device to reduce the pressure after the cooking is powered off can be solved.

Claims

1. A cooking utensil, characterized in that, include: The shell is open at the top and has an internal space; The inner pot has an opening at its upper end, and the inner pot can be placed inside the internal space of the shell; An outer cover capable of closing or opening the housing, the outer cover having a cooling container that, when the outer cover closes the housing, is positioned above the inner pot and opposite the opening of the inner pot; A fan, located inside the housing, is used to draw in outside air; A mist cooling device, which has a water tank for supplying water; Air-cooled ducts are used to introduce outside air drawn in by the fan into the cooling container; as well as A mist-cooling duct connects the mist-cooling device to the cooling container. The cooking appliance has the following structure: Water from the water tank is supplied to the cooling container via the mist-cooling pipe, or... The mist cooling device is equipped with an atomizing plate for atomizing the water in the water tank, and the water mist atomized by the atomizing plate is supplied to the cooling container through the mist cooling pipe.

2. The cooking appliance according to claim 1, characterized in that, The air-cooled pipe and the mist-cooled pipe are combined into one in the middle, and the outside air and the water mist are supplied to the cooling container through the shared pipe.

3. The cooking utensil according to claim 1, characterized in that, The air-cooled pipe and the mist-cooled pipe extend independently into the cooling container.

4. The cooking appliance according to claim 1, characterized in that, The mist cooling device is located inside the outer cover, above the cooling container, or inside the shell, to the side of the inner pot. A water pump is installed midway through the mist cooling pipe to supply water from the water tank to the cooling container.

5. The cooking appliance according to claim 1, characterized in that, The mist cooling device is located inside the outer cover, above the cooling container, or inside the shell, to the side of the inner pot. The cooking appliance also has a water mist fan for supplying the water mist to the cooling container, and the water mist atomized by the atomizing plate is sent to the cooling container by the water mist fan.

6. The cooking utensil according to claim 5, characterized in that, The bottom of the water tank has a drain hole, and an automatic water discharge component is installed in the drain hole. The automatic water discharge component has: A water tank sealing plate, located inside the water tank, is sized to cover the leak hole; A rod member, which passes through the leakage hole, has a cross-sectional area smaller than the size of the leakage hole and a length greater than the through length of the leakage hole, and has the water tank sealing plate at one end of the rod member; and A stop portion, located outside the water tank, is provided at the other end of the rod member. The elastic member is located between the bottom of the water tank and the stop, and applies force in a direction that moves the water tank away from the stop. The mist cooling device has a water tank bracket for mounting the water tank. The water tank bracket has a protrusion that, when the water tank is installed on the water tank bracket, presses the stop portion in the direction that overcomes the force applied by the elastic member.

7. The cooking utensil according to claim 6, characterized in that, The water tank bracket has a space located below the drain hole. The protrusion is located within the space. The atomizing plate is exposed in the space.

8. The cooking appliance according to claim 5, characterized in that, The mist cooling pipe is connected to the cooling container via an atomizing nozzle. The cross-sectional area of ​​the atomizing nozzle decreases as it moves toward the cooling container.

9. The cooking utensil according to claim 4, characterized in that, In the vertical direction, the mist cooling pipe is located between the water tank and the cooling container.

10. The cooking appliance according to claim 1, characterized in that, The fan is a turbo fan.

11. The cooking utensil according to claim 1, characterized in that, The cooling container has an opening at the bottom. The cooking appliance also has an inner cover that can be removably closed the opening below the cooling container.

12. The cooking utensil according to claim 5, characterized in that, The water mist fan and the fan mentioned above are the same fan.

Citation Information

Patent Citations

  • Cooking appliance

    CN109770705A

  • Quick-cooling electric pressure cooker

    CN220369835U