Rice cooking utensil

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 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 housing is closed; the fog cooling device is provided with a water tank; the fog cooling device is connected with the cooling container through the fog cooling pipeline, one of the shell and the outer cover is provided with a backflow device communicated with the outside, and the backflow device comprises a backflow piece, a cooling fin, a cooling fin and a cooling fin, and the backflow piece is provided with at least one of the cooling fin and the cooling fin; the backflow fan sucks outside air into the backflow sheet, so that heat exchange is carried out between the outside air and the backflow sheet; and the backflow container is used for recovering condensation water formed on the backflow sheet, and the backflow container is communicated with the water tank. On the basis of the rice cooking appliance, automatic water supplementing can be conducted on the water tank used in the fog cooling device.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cooking utensils, specifically, a kind of cooking utensils can be used for the water tank in fog cooling device is automatically replenished. BACKGROUND

[0002] As a typical cooking utensil, for example, electric rice cooker can be listed.In the market at present, more fan blows inner pot cooling mode.For example, in patent document 1 discloses the following technical scheme, fan is arranged below heating disc, fan is automatically or manually started after cooking power-off, rely on wind cooling heating disc and inner pot, outer pot to reduce pressure, but there is the problem of bad cooling effect, too much space of occupying shell etc.

[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 is the problem of bad cooling effect, single cooling mode, water tank needs manual water supply etc.

[0004] Prior art document

[0005] Patent document

[0006] Patent document 1: CN220369835U

[0007] Patent document 2: CN109770705A Utility model content

[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, can be used for the water tank in fog cooling device is automatically replenished.

[0010] Solution for solving the problem

[0011] The utility model discloses a cooking utensil which is characterized by comprising: a casing with an open upper end and having an internal space; an inner pot with an open upper end, which can be placed in the internal space of the casing; an outer cover capable of closing or opening the casing, which has a cooling container, and when the outer cover closes the casing, the cooling container is above the inner pot and opposite to the opening of the inner pot; a fog cooling device having a water tank for containing water; and a fog cooling pipeline connecting the fog cooling device and the cooling container, one of the casing and the outer cover is provided with a backflow device communicating with the outside, which comprises: a backflow sheet having at least one of a heat dissipation sheet and a refrigeration sheet; a backflow fan for sucking outside air to the backflow sheet so that the outside air exchanges heat with the backflow sheet; and a backflow container for recovering dew water formed in the backflow sheet, which communicates with the water tank.

[0012] Preferably, the cooking utensil further comprises: a fan provided in the internal space of the casing for sucking outside air; and an air cooling pipeline for guiding the outside air sucked by the fan into the cooling container.

[0013] Preferably, the cooking utensil is configured as follows: water in the water tank is supplied to the cooling container via the fog cooling pipeline, a water pump is provided in the middle of the fog cooling pipeline, and water in the water tank is supplied to the cooling container by the water pump, or an atomization sheet for atomizing water in the water tank is provided in the fog cooling device, and water mist atomized by the atomization sheet is supplied to the cooling container via the fog cooling pipeline.

[0014] Preferably, the cooking utensil further has a backflow pipeline communicating the backflow container and the water tank.

[0015] Preferably, the fog cooling device is provided in the internal space of the casing, and the backflow device is provided in the internal space of the outer cover.

[0016] Preferably, the bottom of the water tank and the bottom of the backflow container are located at the same horizontal plane, and the backflow pipeline communicates the bottom of the water tank and the bottom of the backflow container.

[0017] Preferably, the backflow container and the water tank are formed in one piece, and the backflow container is above the water tank.

[0018] Preferably, the backflow device and the fog cooling device are both provided in the internal space of the casing with the backflow container above the water tank, or the backflow device and the fog cooling device are both provided in the internal space of the outer cover with the backflow container above the water tank.

[0019] Preferably, the backflow fan is disposed adjacent to the backflow container.

[0020] Preferably, a backflow water pump is disposed in the middle of the backflow pipeline, and the backflow water pump is used to send the condensed water to the water tank.

[0021] Effects of the utility model

[0022] The rice cooking appliance based on the utility model can automatically replenish water for the water tank used in the fog cooling device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a sectional view of the rice cooking appliance of the utility model.

[0024] Figure 2 is a schematic view of the inner cover and the cooling container.

[0025] Figure 3 is a structural schematic view of the fog cooling device.

[0026] Figure 4 is a sectional view of other structures of the rice cooking appliance of the utility model.

[0027] Figure 5 is a schematic view of the water tank and the backflow container being integrally formed.

[0028] Figure 6 is a sectional view of other structures of the rice cooking appliance of the utility model.

[0029] REFERENCE SIGNS

[0030] 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, fog cooling nozzle; 19, air cooling pipeline; 20, water tank cover plate; 21, water tank; 22, water tank support; 23, automatic water outlet member; 24, protrusion; 25, atomizing sheet cover plate; 26, atomizing sheet; 27, sealing gasket; 28, hose connecting piece; 29, outer cover cover; 30, water leakage hole; 31, elastic member; 32, water tank sealing plate; 33, rod member; 34, stop part; 35, space; 40, backflow pipeline; 41, backflow container; 42, backflow sheet; 43, backflow fan. DETAILED DESCRIPTION

[0031] The structure of the present application will be described in detail below based on the drawings, but the following description is not intended to limit the present application, and each component in the technical solution can be changed, replaced, combined, deleted, etc. without departing from the main idea of the present application.

[0032] <Structure of the rice cooking appliance>

[0033] In Figure 1 , a front sectional view of the rice cooking appliance of 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 comprises a housing 1 having an open upper end and an internal space, the housing 1 constituting the 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.

[0034] As shown in Figure 1 , the rice cooking appliance further comprises a cover 3, a portion of the cover 3 being mounted to the housing 1 in a swingable manner by means of a hinge or the like, and the opening of the upper end of the housing 1 being capable of being closed by swinging the cover 3, whereby the cover 3 is capable of closing or opening the housing 1. Alternatively, the 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 water condensed from the water mist in the cooling container 10 described later.

[0035] The rice cooking appliance further comprises a fan 4 provided in the internal space of the housing 1, the fan 4 being in communication with the outside for sucking in ambient air, the ambient air being used as cooling air flow for cooling and depressurizing the inner pot 2.

[0036] <Structure of the cooling and depressurizing of the inner pot>

[0037] The inner pot 2 is a member for holding rice and transferring heat to the rice when the rice cooking appliance is in operation, and the cooling and depressurizing speed of the inner pot 2 will affect the working efficiency of the rice cooking appliance, so it is important to provide a structure capable of quickly cooling and depressurizing the inner pot 2. In the following description, a structure using both air cooling and mist cooling will be described, whereby the inner pot 2 can be reliably and quickly cooled and depressurized, but only mist cooling can also be used. An automatic water replenishing structure is used for the mist cooling device.

[0038] As shown in Figure 1 , the fan 4 is provided in the internal space of the housing 1, and the fan 4 can be provided laterally to the inner pot 2, i.e. in the up-down direction, the fan 4 is provided at a position corresponding to the side wall of the inner pot 2. The fan 4 is, for example, a turbo fan, which can generate 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.

[0039] When the fan 4 is working, the outside air is sucked into the inside of the rice cooking appliance as a cooling air flow. As a member for guiding the cooling air flow, there is a wind cooling duct 19 in the housing 1 for guiding the outside air (cooling air flow) sucked by the fan 4 into the cooling container 10 of the outer cover 3. As shown in Figure 1 , the wind cooling duct 19 includes the housing inner duct 5 and the outer cover inner duct 6.

[0040] As shown in Figure 1 , there are also a mist cooling device 15 having a water tank 21 for containing water (see Figure 3 ) and a mist cooling duct 16 connecting the mist cooling device 15 with the cooling container 10 in the rice cooking appliance. Figure 1 In the structure shown in , the mist cooling duct 16 has the housing inner duct 7 and the outer cover inner duct 6, and the housing inner duct 7 of the mist cooling duct 16 and the housing inner duct 5 of the wind cooling duct 19 are merged into one housing inner duct in the middle, and the outside air and the water mist are supplied to the cooling container 10 through the shared duct.

[0041] The housing inner duct 5 is arranged in the housing 1, one end of which is connected to the air outlet of the fan 4, and the other end is merged with the housing inner duct 7 and then opens at the part of the housing 1 opposite to the outer cover 3. Thus, the outside air introduced by the fan 4 enters the housing inner duct 5 through the air outlet of the fan 4. The fan 4 can be other fans (for example: axial fan) besides the turbine fan, and there is a cover passage between the fan 4 and the housing inner duct 5, which is arranged at the air outlet of the fan 4 and is smoothly reduced to the pipe diameter of the housing inner duct 5 through the arc surface, guiding the wind blown by the fan 4 to be concentrated into the duct, playing the role of wind guide. The cover passage is usually used for the air outlet of the fan other than the turbine fan. Alternatively, there is a wind guide cover arranged on the side of the housing 1, which is used to guide the outside air sucked by the fan 4.

[0042] The housing inner duct 7 is arranged in the housing 1, one end of which is connected to the water mist outlet of the mist cooling device 15, and the other end is merged with the housing inner duct 5 and then opens at the part of the housing 1 opposite to the outer cover 3. Thus, the water mist generated by the mist cooling device 15 enters the housing inner duct 7 through the water mist outlet of the mist cooling device 15.

[0043] When the outer lid 3 closes the housing 1, the housing inner ducts (including the housing inner duct 5 and the housing inner duct 7, hereinafter the same) and the outer lid inner duct 6 are joined together. 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 housing 1, and the one end of the outer lid inner duct 6 is located in a matching position with the other end of the housing inner duct, i.e., when the outer lid 3 closes the housing 1, the other end of the housing inner duct is opposite to and connected with the one end of the outer lid inner duct 6. The other end of the outer lid inner duct 6 extends into the cooling container 10. Thus, when the outer lid 3 closes the housing 1, the outside air entering the housing inner duct 5 and the water mist entering the housing inner duct 7 can enter the outer lid inner duct 6, and be guided into the cooling container 10 through the outer lid inner duct 6.

[0044] The first seal 11 is included in at least one of the housing 1 and the outer lid 3, and seals the joint between the housing inner duct and the outer lid inner duct 6. When the outer lid 3 closes the housing 1, the first seal 11 seals the joint between the housing inner duct and the outer lid inner duct 6. When the first seal 11 is provided in one of the housing 1 and the outer lid 3, it is preferable that the first seal 11 completely covers the joint between the housing inner duct and the outer lid inner duct 6, and a recess for the first seal 11 to enter is provided in the other one of the housing 1 and the outer lid 3 (the member not provided with the first seal 11). Thus, when the outer lid 3 closes the housing 1, the joint between the housing inner duct and the outer lid inner duct 6 can be reliably sealed. Alternatively, when the first seal 11 is provided in both of the housing 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 housing 1 when the outer lid 3 closes the housing 1, and the sealing effect can also be reliably achieved to prevent the outside air and the water mist from leaking from the joint between the housing inner duct and the outer lid inner duct 6.

[0045] In Figure 1 In the structure shown in the drawing, an example is shown in which the housing inner duct 5 and the housing inner duct 7 are merged into one duct midway, but alternatively, the housing inner duct 5 and the housing inner duct 7 can be independent ducts, and the outer lid inner ducts connected to the housing inner duct 5 and the housing inner duct 7, respectively, are provided in the outer lid 3, and are both connected to the cooling container.

[0046] The cooling container 10 provided in the outer lid 3 will be described below. The cooling container 10 is provided in a portion of the outer lid 3 opposite to the housing 1, and is located above the inner pot 2 and opposite to the opening of the inner pot 2 when the outer lid 3 closes the housing 1.

[0047] Figure 2 is a schematic view of the cooling container 10. As shown in the drawing, the cooling container 10 is provided in a portion of the outer lid 3 opposite to the housing 1, and is located above the inner pot 2 and opposite to the opening of the inner pot 2 when the outer lid 3 closes the housing 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 housing 1) in a direction away from the housing 1, and the second seal 12 is provided around the space (along the entire circumference of the outer periphery of the space). The cooling container 10 having the opening 13 at the lower side is formed by the outer cover 3 and the second seal 12, and the cooker further has an inner cover 9 which closes the opening 13 of the cooling container 10 at the lower side in a detachable manner. It can also be said that the cooling container 10 is a space divided by the outer cover 3, the second seal 12, and the inner cover 9. The second seal 12 is provided between the inner cover 9 and the outer cover 3, and the second seal 12 is used to prevent the outside air or the water mist introduced into the cooling container 10 from leaking into the inner pot 2 from the cooling container 10.

[0048] Also, as shown in Figure 1 , 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 the plan view is slightly larger than the opening area of the inner pot 2. Thus, when the second seal 12 is provided around the space of the cooling container 10, the forming range of the second seal 12 is approximately equivalent to the size of the opening of the inner pot 2, and the second seal 12 can abut against the opening periphery of the inner pot 2 when the outer cover 3 closes the housing 1. By being configured that the inner cover 9 and the second seal 12 close the inner pot 2 when the outer cover 3 closes the housing 1, the hot air in the inner pot 2 can be prevented from overflowing from the inner pot 2 to affect the taste of the rice.

[0049] As shown in Figure 2 , the outer cover inner duct 6 has an air outlet portion 8 which extends into the cooling container 10. The air outlet portion 8 has an air outlet 14 at the top end thereof, and the air outlet 14 is opposite to the opening of the inner pot 2.

[0050] <Structure of the mist cooling device>

[0051] As the device for providing the water mist to the cooling container 10, the structure of the mist cooling device 15 of the present application is shown in Figure 3 , as shown in Figure 3 , the mist cooling device 15 is provided with an atomizing sheet 26 for atomizing the water in the water tank 21, and the water mist atomized by the atomizing sheet 26 is supplied to the cooling container 10 via the mist cooling duct 16. The mist cooling device 15 can be provided with a water mist fan for supplying the water mist to the cooling container 10, and the water mist atomized by the atomizing sheet 26 is sent to the cooling container 10 by the water mist fan.

[0052] The water tank 21 of the mist cooling device 15 is arranged at the side wall of the housing 1 or the upper portion of the outer cover 3, so that the water tank cover plate 20 of the water tank 21 can be exposed at the outer side of the cooker, and the user can open the water tank cover plate 20 to replenish water into the water tank 21. Thus, although the water tank can be automatically replenished by the backflow device as described later, the water can also be manually replenished as a supplement to the automatic replenishment.

[0053] Further, as shown in FIG. 1, the water tank 21 has a water leakage hole 30 at the bottom thereof, and an automatic water outlet member 23 is installed at the water leakage hole 30. The automatic water outlet member 23 has a water tank sealing plate 32 located inside the water tank 21 and having a size capable of covering the water leakage hole 30, a rod member 33 penetrating the water leakage hole 30 and having a cross-sectional area smaller than the size of the water leakage hole 30 and a length greater than the penetration length of the water leakage hole 30, and a stopper 34 located outside the water tank 21 and having the stopper 34 at the other end of the rod member 33. Figure 3 A spring member 31 is provided between the bottom of the water tank 21 and the stopper 34, and the spring member 31 exerts a force in a direction away from the stopper 34. In this embodiment, the spring member 31 exerts a force on the stopper 34 in a downward direction.

[0054] Figure 3 When the water tank 21 is removed from the fog cooling device 15, the stopper 34 at the other end of the rod member 33 is moved away from the bottom of the water tank 21 in a downward direction under the action of the spring member 31, and thus the water tank sealing plate 32 at the one end of the rod member 33 is brought into close contact with the bottom surface inside the water tank 21. In this way, the water leakage hole 30 of the water tank 21 is closed, and water is prevented from flowing out of the bottom of the water tank 21 when the water tank 21 is removed.

[0055] As shown in FIG. 1, the fog cooling device 15 has a water tank support 22 for installing the water tank 21, and the water tank support 22 has a protrusion 24 for pressing the stopper 34 against the force exerted by the spring member 31 when the water tank 21 is installed in the water tank support 22. Figure 3 Figure 3 In this embodiment, the protrusion 24 exerts a force on the stopper 34 in an upward direction. Thus, when the water tank 21 is installed in the water tank support 22, the protrusion 24 overcomes the force exerted by the spring member 31 and lifts the stopper 34, and as the stopper 34 is lifted, the water tank sealing plate 32 at the one end of the rod member 33 is brought away from the bottom surface inside the water tank 21. In this way, when the water tank 21 is installed in the water tank support 22, water in the water tank 21 can flow out of the water leakage hole 30.

[0056] As shown in FIG. 1, the water tank support 22 has a space 35 located below the water leakage hole 30, the protrusion 24 is located in the space 35, the atomizing sheet 26 is installed at a position of the water tank support 22 below the water leakage hole 30, is fixed to the water tank support 22 by the atomizing sheet cover 25, and is exposed to the space 35. Thus, when water flows out of the water leakage hole 30 of the water tank 21, the flowing water is received in the space 35 and comes into contact with the atomizing sheet 26. Figure 3

[0057] ​​​A water mist discharge port 36 is provided in the water tank support 22 of the mist cooling device 15, and the water mist discharge port 36 is connected to the space 35, whereby the water mist generated by the atomizing blade 26 in the space 35 can be discharged through the water mist discharge port 36. The hose connection 28 is provided in the water mist discharge port 36 with the outer cover 29 interposed between the hose connection 28 and the sealing gasket 27, and the mist cooling pipe 16 (or the air cooling pipe 19) is connected to the hose connection 28. Thus, the water mist can enter the mist cooling pipe 16 through the water mist discharge port 36.

[0058] As shown in Figure 3 , the mist cooling device 15 is provided with the fan 4, in which case the fan 4 functions not only as a fan for sucking in outside air but also as a water mist fan for sending the water mist generated by the atomizing blade 26 to the mist cooling pipe 16 (i.e., the fan 4 and the water mist fan are the same fan). The mist cooling pipe 16 has the atomizing nozzle 18 connected to the cooling container 10, and the mist cooling pipe 16 is connected to the cooling container 10 via the atomizing nozzle 18, and the atomizing nozzle 18 is tapered in diameter as it goes toward the inside of the cooling container 10, i.e., the cross-sectional area of the atomizing nozzle 18 decreases as it goes toward the cooling container 10. Thus, the flow rate of the water mist when it enters the cooling container 10 can be increased, and the cooling effect can be enhanced.

[0059] Since the fan 4 functions as a power source for both the air cooling and the mist cooling at this time, in addition to the water mist entering the pipe from the space 35, outside air is also sucked in by the fan 4 to enter the pipe from the space 35, and at this time Figure 3 , the pipe connected to the hose connection 28 is both the mist cooling pipe 16 and the air cooling pipe 19, and the nozzle of the pipe into the cooling container 10 is both the atomizing nozzle 18 and the air outlet 14.

[0060] Alternatively, the fan 4 in Figure 4 may be replaced by a separately provided independent water mist fan. In this case, the rice cooking appliance has an independent mist cooling pipe 16 and an independent atomizing nozzle 18.

[0061] As shown in Figure 6 and Figure 4 , the mist cooling device 15 is provided above the cooling container 10 in the outer cover 3, or is provided to the side of the inner pot 2 in the housing 1. Here, the mist cooling device 15 provided to the side of the inner pot 2 can be positioned at a height corresponding to the inner pot 2, or at least a part of the mist cooling device 15 can be lower than the inner pot 2.

[0062] The mist 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 mist cooling pipe 16. In this case, as shown in Figure 6 , Figure 4As shown, a water pump 17 can be provided in the middle of the fog cooling pipeline 16, and the water pump 17 is used to supply water in the water tank to the cooling container 10. Figure 1 As shown, preferably, in the up-down direction, the fog cooling pipeline 16 is located between the fog cooling device 15 (of the water tank) and the cooling container 10.

[0063] After the cooling and pressure reduction are completed, the inner cover 9 can be removed, and the water in the cooling container 10 can be poured out.

[0064] <Reflux Device>

[0065] A reflux device is provided in one of the housing 1 and the outer cover 3, and is in communication with the outside, as shown. Figure 1 As shown, the reflux device includes a reflux sheet 42 having at least one of a heat dissipation sheet and a refrigeration sheet, a reflux fan 43 for sucking outside air into the reflux sheet 42 so that the outside air exchanges heat with the reflux sheet 42, and a reflux container 41 for collecting the condensed water formed in the reflux sheet 42, the reflux container 41 being in communication with the water tank 21. The reflux sheet 42 is provided in the inside of the reflux container 41, for example, or the reflux sheet 42 constitutes a part of the reflux container 41.

[0066] The reflux fan 43 sucks the outside air into the reflux sheet 42, the outside air is cooled and condensed by the heat dissipation sheet and the refrigeration sheet of the reflux sheet 42, and the condensed water is collected into the reflux container 41. As shown, Figure 1 As shown, the rice cooking appliance further has a reflux pipeline 40, which is in communication with the reflux container 41 and the water tank 21. The reflux pipeline 40 causes the condensed water to reflux into the water tank of the fog cooling device 15, and replenishes the water required for the atomization cooling, thereby solving the problem of manual water supply for the water tank.

[0067] As shown, Figure 4 The fog cooling device 15 is provided in the inside of the housing 1, and the reflux device is provided in the inside of the outer cover 3. As shown, Figure 1 The fog cooling device 15 and the reflux device are both provided in the inside of the outer cover 3, and the bottom of the water tank 21 and the bottom of the reflux container 41 are located at the same level, and the reflux pipeline 40 is in communication with the bottom of the water tank 21 and the bottom of the reflux container 41.

[0068] In Figure 4 and Figure 5In the illustrated structure, the condensed water can return to the water tank of the fog cooling device 15 through the return pipe 40 under the action of gravity. In addition, a return water pump can be provided in the middle of the return pipe 40, and the condensed water can be sent to the water tank of the fog cooling device 15 by the return water pump. In this case, the water tank of the fog cooling device 15 can be located above the return container 41. Alternatively, the return device and the fog cooling device 15 can be arranged inside the housing 1 with the return container 41 located above the water tank 21, or the return device and the fog cooling device 15 can be arranged inside the outer cover 3 with the return container 41 located above the water tank 21.

[0069] As shown in the figure, the return container 41 is integrated with the water tank 21, and the return container 41 is located above the water tank 21. In this case, the upper portion of the water tank 21 can be regarded as the return container 41, and the condensed water formed by the return sheet 42 directly flows into the water tank 21. Preferably, the return fan 43 is arranged adjacent to the return container 41, so that sufficient external air can be reliably guided to the return sheet 42. ​

[0070] Therefore, after the operation of the rice cooker is completed, the fan 4 is started, and 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 are required. In the case of using a turbo fan, the air volume can be further increased, and in combination with the large-aperture air cooling pipe 19, a larger air volume can be obtained.

[0071] By arranging the first sealing member 11 at the joint of the inner pipe 5 of the housing and the inner pipe 6 of the outer cover, a closed pipe structure is formed, and the sealing of external air in the air cooling pipe 19 is reliably ensured. Via the air cooling pipe 19, external air is sent to the cooling container 10, and the cooling container 10 is opposite to the opening of the inner pot 2 through the inner cover 9, and the external air exchanges heat with the high-temperature gas in the inner pot 2 in the cooling container 10.

[0072] 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 external air. Therefore, by using air cooling and water cooling in combination, the temperature in the inner pot can be quickly reduced.

[0073] ​The cooling container 10 is formed opposite to the opening of the inner pot 2 (preferably formed throughout the opening), so that the ambient air, water mist (or water) 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 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.

[0074] By providing the cooling container 10 with a certain space, the area and residence time of the ambient air, water mist (or water) 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.

[0075] 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.

[0076] The rice cooker can automatically control the start of the fan 4, the mist cooling device 15, and the reflux device.

[0077] While the mist cooling device 15 is used for mist cooling, the reflux fan 43 works to introduce ambient air to the reflux sheet 42, so that the ambient air is cooled and dewed on the reflux sheet 42, and the dewed water is collected in the reflux container 41 and further guided to the water tank of the mist cooling device 15.

[0078] <Effects>

[0079] As described above, according to the structure of the present application, the fan 4 sucks 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 of directly blowing the inner pot by the fan, the inner pot can be cooled more quickly. In addition, the present application combines the two ways of air cooling and mist cooling, and the water mist (or water) exchanges heat with the hot air in the inner pot 2 together with the ambient air in the cooling container 10, which can increase the contact area and residence time of the ambient air and water mist (or water) with the cooling container compared with the structure of directly cooling the outer side wall of the inner pot 2, and improve the cooling efficiency. Compared with the structure of single cooling method of air cooling, the present application combines mist cooling with air cooling, and the cooling method is various, which can further improve the efficiency of cooling and pressure reduction.

[0080] 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 force and fast flow rate can be obtained, and the problem of occupying too much space in the shell can be further solved. By arranging 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 to exchange heat with the inner pot 2.

[0081] In addition, compared with the structure of arranging the heat sink on the outer cover in the prior art, the structure of the present application is simpler. Moreover, the fan 4, the fog cooling device 15 and the reflux device 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, the fog cooling device and the reflux device to reduce the pressure and supplement water after the cooking is powered off is solved.

[0082] By using the reflux device, the water required by the fog cooling device can be automatically supplemented, so that the problem of manually adding water to the water tank is 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 mist cooling device, which has a water tank for supplying water; as well as A mist-cooling duct connects the mist-cooling device to the cooling container. One of the housing and the outer cover is provided with a reflux device communicating with the outside, the reflux device comprising: A reflow plate having at least one of a heat sink and a cooling plate; A recirculation fan, used to draw in outside air to the recirculation vanes, so that the outside air exchanges heat with the recirculation vanes; and A reflux container is used to recover the condensate formed on the reflux plate. The reflux container and the water tank are connected.

2. The cooking appliance according to claim 1, characterized in that, The cooking utensils also include: A fan, disposed inside the housing, is used to draw in outside air; and Air-cooled ducts are used to introduce outside air drawn in by the fan into the cooling container.

3. The cooking utensil according to claim 1, characterized in that, The cooking appliance has the following structure: Water from the water tank is supplied to the cooling container via the mist-cooling pipe. A water pump is installed midway through the mist-cooling pipe to supply water from the water tank to the cooling container. Alternatively, 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.

4. The cooking appliance according to claim 1, characterized in that, The cooking appliance also has a return pipe that connects the return container and the water tank.

5. The cooking appliance according to claim 4, characterized in that, The mist cooling device is disposed inside the housing. The reflux device is located inside the outer cover.

6. The cooking appliance according to claim 4, characterized in that, The bottom of the water tank and the bottom of the return container are on the same horizontal plane. The return pipe connects the bottom of the water tank to the bottom of the return container.

7. The cooking utensil according to claim 1, characterized in that, The reflux container is integrated with the water tank. The reflux container is located above the water tank.

8. The cooking appliance according to claim 1, characterized in that, The reflux device and the mist cooling device are both disposed inside the shell with the reflux container positioned above the water tank, or... The reflux device and the mist cooling device are both located inside the outer cover with the reflux container positioned above the water tank.

9. The cooking appliance according to claim 1, characterized in that, The recirculation fan is disposed adjacent to the recirculation container.

10. The cooking utensil according to claim 4, characterized in that, A return water pump is installed midway through the return pipeline to deliver the condensate to the water tank.

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