CN112006534A

CN112006534A - Steam box, pot cover and pressure cooking utensil

Info

Publication number: CN112006534A
Application number: CN201910472152.4A
Authority: CN
Inventors: 李金洲; 李建; 何国营
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-12-01

Abstract

The invention provides a steam box, a pot cover and a pressure cooking appliance. Wherein, steam box includes: the box body comprises a box body and a sealing cover arranged on the box body, an inlet and an outlet are formed in the box body, and steam can enter the box body through the inlet; the cooling structure is arranged on the box body and can absorb heat of steam in the box body, so that the steam is condensed into condensed water, and the condensed water can be discharged from the outlet. By applying the technical scheme of the invention, the problem that in the prior art, the gas exhausted from the steam box easily flows to a desktop, so that the use experience of a user is poor can be effectively solved.

Description

Steam box, pot cover and pressure cooking utensil

Technical Field

The invention relates to the field of small household appliances, in particular to a steam box, a pot cover and a pressure cooking appliance.

Background

At present, electric pressure cookers on the market are usually provided with steam boxes, on which steam outlets are provided. When the pressure in the electric pressure cooker reaches the preset pressure, the pressure limiting valve is jacked up, steam in the cooker can be discharged into the steam box, and part of the steam can be discharged from the steam outlet.

The steam box can store condensed water formed after steam is condensed, and the condensed water flowing from the pot cover to the pot body is reduced. However, in the above structure, a part of steam still exits from the steam outlet, and after the part of steam is condensed, the part of steam may still flow downwards to the pot body or even the table top from the pot cover, which results in poor user experience.

Disclosure of Invention

The invention mainly aims to provide a steam box, a pot cover and a pressure cooking appliance, and aims to solve the problem that in the prior art, gas exhausted from the steam box easily flows onto a table top, so that the use experience of a user is poor.

In order to achieve the above object, according to one aspect of the present invention, there is provided a steam box including: the box body comprises a box body and a sealing cover arranged on the box body, an inlet and an outlet are formed in the box body, and steam can enter the box body through the inlet; the cooling structure is arranged on the box body and can absorb heat of steam in the box body, so that the steam is condensed into condensed water, and the condensed water can be discharged from the outlet.

By applying the technical scheme of the invention, the cooling liquid is filled in the box body, the cooling structure isolates the steam from the cooling liquid, and the steam exchanges heat with the cooling liquid through the cooling structure to cool the steam entering the box body. Above-mentioned structure makes the steam that gets into the steam box can condense into liquid fast and finally discharge to preset position by the export to avoid the rivers after the steam condensation to the desktop on, improve user's use and experience.

Furthermore, cooling liquid is filled in the box body, the cooling structure isolates steam from the cooling liquid, and the steam exchanges heat with the cooling liquid through the cooling structure. The structure enables the steam entering the steam box to be condensed into liquid more quickly and finally discharged to the preset position through the outlet, so that the use experience of a user is improved.

Further, cooling structure is including setting up the condenser pipe in the box body, the first end and the import intercommunication of condenser pipe, the second end and the export intercommunication of condenser pipe, the outer wall and the coolant liquid contact of condenser pipe are in order to cool down the steam in the condenser pipe. Above-mentioned structure makes cooling structure's quick heat conduction characteristic good to can reach the effect of condensation steam with the heat quick transfer to coolant liquid of high temperature steam.

Further, the condensation duct is arranged in a curved manner. The structure can reduce the steam pressure, so that the steam is finally reduced to the condensed water under the normal pressure, and the noise problem is avoided.

Furthermore, the inlet and the outlet are arranged on the box body, and the box body is also provided with a fixing structure for fixing the condensation pipe. The structure is simple, and the assembly is convenient.

Further, the cooling structure further comprises a cooling fin arranged on the condensation pipe. The structure enables the steam entering the steam box to be condensed into liquid more quickly and finally discharged to the preset position through the outlet, so that the use experience of a user is improved.

Further, a cavity is formed between the box body and the sealing cover, and a first exhaust channel which is not communicated with the cavity but communicated with the external atmosphere is arranged on the box body. The above structure does not affect the layout among the components in the prior art.

Further, box body and closing cap are components of a whole that can function independently structure, form the cavity between box body and the closing cap, are provided with the barrel that upwards extends and link up on the box body, are provided with on the closing cap and dodge the hole, and the tip of keeping away from the box body of barrel is worn out by dodging the hole, and passageway in the barrel forms the first exhaust passage who does not communicate each other but with external atmosphere intercommunication with the cavity.

Further, cooling structure is for setting up the water-cooling board in the box body, or, cooling structure is including setting up the condenser pipe in the box body and setting up the semiconductor refrigeration piece on the condenser pipe, the first end and the import intercommunication of condenser pipe, the second end and the export intercommunication of condenser pipe, the semiconductor refrigeration piece can absorb the heat of steam in the condenser pipe under the circumstances of circular telegram in order to be the comdenstion water with the steam condensation in the condenser pipe, or, cooling structure is including setting up the condenser pipe in the box body and setting up the fin on the condenser pipe, the first end and the import intercommunication of condenser pipe, the second end and the export intercommunication of condenser pipe. The above structure enables the steam entering the steam box to be rapidly condensed into liquid and finally discharged to a predetermined position through the outlet, so as to improve the user experience.

Further, the cooling structure is arranged on the outer side of the box body. The above structure enables the steam entering the steam box to be rapidly condensed into liquid and finally discharged to a predetermined position through the outlet, so as to improve the user experience.

Further, the cooling structure is a pipe arranged outside the box body. The structure is simple, the processing is easy, and the cost is low.

According to another aspect of the present invention, there is provided a pot lid comprising: the pot cover comprises a pot cover body and a steam box, wherein the steam box is the steam box. Because above-mentioned steam box has the rivers that avoid behind the steam condensation to the desktop on, improves the advantage that the user used the experience, consequently the pot cover that has it also has above-mentioned advantage.

Furthermore, a second exhaust channel is arranged on the cooker cover body, a pressure limiting valve is arranged at the second exhaust channel, and steam exhausted from the second exhaust channel enters the box body from an inlet of the box body of the steam box under the condition that the pressure limiting valve opens the second exhaust channel. The above structure enables the high pressure steam discharged from the second exhaust passage to be condensed into water and then discharged to a predetermined position through the outlet.

Further, the pot cover body is provided with a mounting opening, the pot cover further comprises a fixing frame arranged at the mounting opening, the fixing frame is provided with a groove which is recessed downwards, the steam box is mounted on the pot cover body through the fixing frame, and at least part of the steam box is located in the groove. The structure can utilize the idle space of the upper part of the pot cover body, thereby being beneficial to the miniaturization design.

Furthermore, the pot cover body is provided with a floatable cold air rod, the box body of the steam box is provided with a first exhaust channel which is not communicated with the inside of the steam box but communicated with the outside atmosphere, and the cold air rod is arranged corresponding to the first exhaust channel. The above structure does not need to change the position of the cool air rod, and the cool air can be rapidly discharged through the first exhaust passage.

Further, the pot cover body includes the face lid that sets gradually from outer to inner, inside lining and inner cup, second exhaust passage sets up and covers in, be provided with the cover body that covers outside the pressure limiting valve on the inside lining, set up first exhaust hole and the second exhaust hole that corresponds with the import of the box body of steam box respectively on the diapire of the cover body and recess, be provided with the delivery port on the inside lining, the export and the delivery port intercommunication of the box body of steam box, it can float ground cold gas pole to be provided with on the inner cup, be provided with on the box body rather than inside each other intercommunication but with the first exhaust passage of external atmosphere intercommunication, cold gas pole and first exhaust passage correspond the setting.

According to another aspect of the present invention, there is provided a pressure cooking appliance including: the method comprises the following steps: the pot cover is characterized by comprising a pot body and a pot cover covered on the pot body. The pot cover has the advantages of preventing water after steam is condensed from flowing onto a table top and the surface of the pot cover, so that the pressure cooking appliance with the pot cover also has the advantages.

Further, the pot body comprises a pot body and a water storage box arranged on the pot body, and an outlet of the box body of the steam box of the pot cover is communicated with the water storage box. The structure avoids the phenomenon that condensed water flows to the pot cover, the pot body and the desktop, so that the use experience of a user can be improved.

Further, the temperature of the condensed water entering the water storage box is less than or equal to 70 ℃. Therefore, water in the water storage box can be further prevented from splashing, and noise is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic perspective view of one direction of an embodiment one of a steam box according to the present invention;

FIG. 2 shows an exploded view of the steam box of FIG. 1;

FIG. 3 shows a schematic perspective view of the steam box of FIG. 1 in another orientation;

FIG. 4 shows a schematic cross-sectional view of the steam box of FIG. 1;

FIG. 5 shows a schematic cross-sectional view of a second embodiment of a steam cartridge according to the present invention;

fig. 6 shows a schematic cross-sectional view of a third embodiment of a steam cartridge according to the present invention;

FIG. 7 shows a schematic cross-sectional view of a fourth embodiment of a steam cartridge according to the present invention;

FIG. 8 shows a schematic cross-sectional view of embodiment five of a steam cartridge according to the present invention;

FIG. 9 shows a schematic cross-sectional view of embodiment six of a steam cartridge according to the present invention;

FIG. 10 shows a schematic perspective view of an embodiment of a pot lid according to the present invention;

figure 11 shows an exploded view of the lid of figure 10;

figure 12 shows a schematic cross-sectional view of the lid of figure 10;

figure 13 shows an enlarged structural schematic view at a of the lid of figure 12; and

fig. 14 shows an enlarged structural view at B of the pot lid of fig. 13.

Wherein the figures include the following reference numerals:

1. a first exhaust passage; 2. cooling liquid; 10. a box body; 11. a box body; 111. an inlet; 112. an outlet; 113. a fixed structure; 114. a barrel; 12. sealing the cover; 121. avoiding holes; 122. a liquid inlet; 20. a condenser tube; 21. a first end; 22. a second end; 30. a pot cover body; 31. a face cover; 311. an installation port; 32. a liner; 321. a cover body; 322. a water outlet; 323. a first exhaust port; 33. an inner cover; 40. a pressure limiting valve; 50. a fixed mount; 51. a groove; 511. a second vent hole; 60. a cold air bar; 70. blocking; 80. a first seal structure; 90. a second seal structure; 100. a third seal structure; 110a, a heat sink; 110b, a heat sink; 120. a water-cooling plate; 123. a plate body; 124. a condensing pipeline; 130. a semiconductor refrigeration sheet; 131. a hot end; 132. a cold end; 140. a pipeline.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 4, the steam box of the first embodiment includes: a case 10 and a cooling structure. The box 10 includes a box body 11 and a cover 12 disposed on the box body 11, a cavity is formed between the box body 11 and the cover 12, an inlet 111 and an outlet 112 are disposed on the box 10, and steam can enter the box 10 through the inlet 111. The cooling structure is disposed in the box 10, and the cooling structure can absorb heat of the steam in the box 10, so that the steam is condensed into condensed water, and the condensed water can be discharged through the outlet 112.

In this embodiment, the "cover" refers to a lid body that is sealed on the box body, and the cover does not have a steam outlet for discharging steam. Compared with the prior art, the scheme that at least part of steam is discharged from the steam outlet is adopted, and the steam entering the box body 10 can exchange heat with the cooling structure to form condensed water because the sealing cover 12 is not provided with the steam outlet.

According to the technical scheme of the first application embodiment, the steam box comprises a cooling structure, and the cooling structure can absorb heat of steam in the box body 10 so as to cool the steam. As the temperature of the vapor decreases, the vapor gradually condenses into a liquid and is finally discharged from the outlet to a predetermined position. Because the seal cover 12 is not provided with the steam outlet, the phenomenon that steam discharged from the steam outlet flows onto a table top after being condensed in the background technology is avoided, and the use experience of a user is improved.

In the first embodiment, the box body 10 is filled with the cooling liquid 2, the cooling structure isolates the steam from the cooling liquid 2, and the steam exchanges heat with the cooling liquid 2 through the cooling structure. Specifically, in the first embodiment, the steam exchanges heat with the cooling liquid 2 through the cooling structure to cool the steam entering the box body 10. The structure enables the steam entering the steam box to be condensed into liquid quickly and finally discharged to a preset position through the outlet 112, so that the steam is prevented from flowing onto a desktop after being condensed, and the use experience of a user is improved.

In the first embodiment, the cap 12 is provided with an inlet 122, and the cooling liquid 2 can be filled into the box 10 through the inlet 122. The liquid inlet 122 is provided with the plug 70, and the structure enables the cooling liquid 2 in the steam box not to flow out from the liquid inlet 122 even if the user pours the steam box, so that the use experience of the user is improved. Preferably, in the present embodiment, the cooling liquid 2 is water, and of course, in other embodiments, the cooling liquid 2 may also be other refrigerant media.

As shown in fig. 1 to 3, in the first embodiment, the cooling structure is a condensation pipe 20 disposed in the box body 10, a first end 21 of the condensation pipe 20 is communicated with the inlet 111, a second end 22 of the condensation pipe 20 is communicated with the outlet 112, and an outer wall of the condensation pipe 20 contacts the cooling liquid 2 to cool the steam in the condensation pipe 20. Specifically, since the rapid heat transfer characteristic of the condensation duct 20 is good, the above structure can rapidly transfer the heat of the high-temperature steam to the coolant 2, thereby achieving the effect of condensing the steam.

As shown in fig. 2 and 4, in the first embodiment, the condensation duct 20 is arranged in a curved manner. The above structure makes the pipe line of the condensation duct 20 longer on one hand, thereby facilitating sufficient heat dissipation. On the other hand, when the pressure is directly and rapidly discharged and the steam with high pressure passes through the curved flat-laying type pipeline, the pressure of the steam in the pipeline is reduced due to the bending of the pipeline and the heat of the steam taken away by the cooling liquid 2, and finally the steam is reduced to condensed water under the normal pressure, so that the water under the normal pressure is discharged from the outlet 112 instead of the steam with the pressure, and the problem of noise is further avoided.

As shown in fig. 2 and 4, in the first embodiment, the box 10 includes a box body 11 having an opening and a cover 12 covering the opening, the inlet 111 and the outlet 112 are disposed on the box body 11, and the box body 11 is further provided with a fixing structure 113 for fixing the condensation pipe 20. During installation, one end of the condensation pipe 20 is communicated with the inlet 111, the other end is communicated with the outlet 112, the condensation pipe 20 is matched with the fixing structure 113, and finally the cover 12 is covered on the box body 11. The structure is simple, and the assembly is convenient. Preferably, in the first embodiment, a first mounting cylinder and a second mounting cylinder extending upward and penetrating up and down are provided on the bottom wall of the box body 11, the bottom opening of the first mounting cylinder forms the inlet 111, and the bottom opening of the second mounting cylinder forms the outlet 112. During the installation, connect the one end of condenser pipe 20 on first installation section of thick bamboo, the other end of condenser pipe 20 is connected on the second installation section of thick bamboo can. The structure is simple, and the assembly is convenient. Further preferably, the end of the condensation pipe 20 is sleeved on the first installation cylinder and the second installation cylinder through silicone pipes. The structure further reduces the difficulty of assembling the condensation pipe. Preferably, in the first embodiment, the fixing structure is a fixing sheet disposed on the bottom wall of the box body 11 and extending upward, a notch engaged with the condensation pipe 20 is disposed on an upper edge of the fixing sheet, and the condensation pipe 20 is clamped into the notch when the condensation pipe 20 is fixed. The structure is simple, and the assembly is convenient.

It should be noted that in the first embodiment, the inlet 122 may be a through hole disposed on the cover 12, and of course, the inlet 122 may also be formed by an opening of the box body 11.

As shown in fig. 2 and 4, in the first embodiment, a first sealing structure 80 is provided between the box body 11 and the cover 12, and the structure can prevent the cooling liquid 2 in the box body 10 from flowing out from the gap at the connection position of the box body 11 and the cover 12, and ensure the sealing performance of the steam box. Preferably, in the first embodiment, the first sealing structure 80 is a silicone ring.

Because of the influence of the layout of the components, the exhaust structure for those exhaust gases that do not need to be condensed may be disposed right below the steam box, and in order to enable the exhaust structure to be normally communicated with the external atmosphere, as shown in fig. 1 to 3, in the first embodiment, the box body 10 is provided with the first exhaust channel 1 that is not communicated with the inside thereof (where "inside" refers to the space formed by buckling the box body 11 and the cover 12 for accommodating the condenser tube 20) but is communicated with the external atmosphere. The above structure allows the gas discharged from the gas discharge structure to communicate with the outside through the case 10 while being not affected by the condensation duct 20.

As shown in fig. 1 to 3, in the first embodiment, the box 10 includes a box body 11 having an opening and a cover 12 covering the opening, the box body 11 is provided with a cylinder 114 extending upward and penetrating through, the cover 12 is provided with an avoiding hole 121, an end of the cylinder 114 far from the box body 11 penetrates through the avoiding hole 121, and the cylinder 114 forms the first exhaust channel 1 inside. Preferably, in the first embodiment, the second sealing structure 90 is disposed between the cylinder 114 and the avoiding hole 121. The structure can prevent the cooling liquid 2 in the box body 10 from flowing out from the gap between the cylinder 114 and the avoiding hole 121, and the sealing performance of the steam box is ensured. Preferably, in the first embodiment, the second sealing structure 90 is a silicone ring.

As shown in fig. 1 to 4, in the first embodiment, the box body 11 and the cover 12 are separate structures. The above structure facilitates the arrangement of the condensation duct 20, thereby facilitating the fabrication and assembly of the steam box.

As shown in fig. 1 to 4, in the first embodiment, a box body 10 is filled with a cooling liquid 2, the cooling structure isolates steam from the cooling liquid 2, the steam exchanges heat with the cooling liquid 2 through the cooling structure, the cooling structure is a condensation pipe 20 disposed in the box body 10, a first end 21 of the condensation pipe 20 is communicated with an inlet 111, a second end 22 of the condensation pipe 20 is communicated with an outlet 112, an outer wall of the condensation pipe 20 contacts with the cooling liquid 2 to cool the steam in the condensation pipe 20, the condensation pipe 20 is arranged in a bent manner, the condensation pipe 20 is made of a metal material, the inlet 111 and the outlet 112 are disposed on the box body 11, the box body 11 is further provided with a fixing structure 113 for fixing the condensation pipe 20, the box body 10 is provided with a first exhaust passage 1 which is not communicated with the inside but is communicated with the outside atmosphere, the box body 11 is provided with a cylinder 114 which extends upwards and is communicated, and the sealing cover 12 is provided with a relief hole 121, the end of the cylinder 114 far away from the box body 11 is penetrated out through the avoidance hole 121, and the channel in the cylinder 114 forms a first exhaust channel 1.

As shown in fig. 5, the steam box of the second embodiment is different from the steam box of the first embodiment in the structure of the cooling structure, and specifically, in the second embodiment, the cooling structure further includes heat dissipation fins 110a provided on the condensation duct 20. The heat radiating fins 110a, the condensation duct 20, and the cooling water can absorb heat of the steam in the condensation duct 20 together to condense the steam in the condensation duct 20 into condensed water. In the second embodiment, the heat dissipation fins 110a are disposed on the outer wall of the condensation duct 20. The structure enables the heat of the steam to be more effectively transferred to the radiating fins and then to be radiated to the surrounding cooling liquid through the radiating fins. Of course, in other embodiments not shown in the figures, cooling fins may also be provided on the inner wall of the condensation duct 20.

As shown in fig. 6, the steam box of the third embodiment is different from the steam box of the first embodiment in that there is no cooling liquid in the box body 10 and the specific structure of the cooling structure. Specifically, in the third embodiment, the cooling structure is a water cooling plate 120 provided in the box body 10. The water-cooling plate 120 is directly contacted with the steam, and the water-cooling plate 120 can absorb heat of the steam to condense the steam into condensed water, and the condensed water can be discharged through the outlet 112. The steam box has the advantages of simple structure, capability of quickly condensing steam and preventing overlarge pressure in the steam box. It should be noted that, in the third embodiment, the water-cooling plate 120 includes a plate body 123 and a condensation pipe 124 disposed on the plate body 123, wherein a circulation condensate flows through the condensation pipe 124, and the condensation pipe can absorb heat of the steam, so that the steam is rapidly condensed into condensed water.

As shown in fig. 7, the steam box of the fourth embodiment is different from the steam box of the first embodiment in that there is no cooling liquid in the box body 10 and the specific structure of the cooling structure. Specifically, in the fourth embodiment, the cooling structure includes a condensation tube 20 disposed in the box body 10 and a semiconductor chilling plate 130 disposed on the condensation tube 20, the first end 21 of the condensation tube 20 is communicated with the inlet 111, the second end 22 of the condensation tube 20 is communicated with the outlet 112, and the semiconductor chilling plate 130 can absorb heat of steam in the condensation tube 20 when being powered on, so as to condense the steam in the condensation tube 20 into condensed water. The structure is simple and easy to realize. Specifically, in the fourth embodiment, the semiconductor chilling plate 130 includes a hot end 131 and a cold end 132, wherein the cold end 132 of the semiconductor chilling plate 130 is attached to the condensation pipe 20. Preferably, the steam box is provided with heat dissipation holes corresponding to the hot end 131. It should be noted that in the fourth embodiment, there are a plurality of semiconductor chilling plates 130, but of course, in other embodiments not shown in the drawings, there may be only one semiconductor chilling plate.

As shown in fig. 8, the steam box of the fifth embodiment is different from the steam box of the second embodiment in that no cooling liquid is contained in the box body 10. Specifically, in the fifth embodiment, the cooling structure includes a condensation tube 20 disposed in the box body 10 and a heat sink 110b disposed on the condensation tube 20, the first end 21 of the condensation tube 20 is communicated with the inlet 111, the second end 22 of the condensation tube 20 is communicated with the outlet 112, and the heat sink 110b and the condensation tube 20 can jointly absorb heat of the steam in the condensation tube 20 to condense the steam in the condensation tube 20 into condensed water. In the second embodiment, the heat dissipation fins 110b are disposed on the outer wall of the condensation duct 20. The above structure enables the heat of the steam to be more efficiently transferred to the heat radiating fins 110b and then radiated to the surrounding air through the heat radiating fins 110 b. Of course, in other embodiments not shown in the figures, cooling fins may also be provided on the inner wall of the condensation duct 20.

As shown in fig. 9, the steam box of the sixth embodiment is different from the steam box of the third embodiment in a specific structure of a cooling structure. Specifically, in the sixth embodiment, the cooling structure is provided on the outer side of the case 10. The condensing structure can absorb heat of the steam in the case 10 through the case 10 to rapidly condense the steam into liquid. Preferably, in this embodiment, the steam box is made of a material with a good heat conduction effect.

As shown in fig. 9, in the sixth embodiment, the cooling structure is a duct 140 provided outside the case 10. The structure is simple and easy to realize. Preferably, in this embodiment, the pipe is wound around the outer surface of the case 10, and the above structure can further increase the rate of steam condensation, preventing the gas pressure inside the case 10 from being excessive. Of course, in other embodiments not shown in the drawings, the pipes may be wound on the upper, lower, and front and rear surfaces of the case 10. The above structure can further increase the rate of steam condensation.

As shown in fig. 10-14, the present application also provides a pot lid, an embodiment of a pot lid according to the present application includes: a pot cover body 30 and a steam box, wherein the steam box is the steam box. Because above-mentioned steam box has the rivers that avoid behind the steam condensation to the desktop on, improves the advantage that the user used the experience, consequently the pot cover that has it also has above-mentioned advantage.

As shown in fig. 10 to 14, in the present embodiment, a second exhaust channel is provided on the pot cover body 30, a pressure limiting valve 40 is provided at the second exhaust channel, and when the pressure limiting valve 40 opens the second exhaust channel, steam exhausted from the second exhaust channel enters the box body 10 from the inlet 111 of the box body 10 of the steam box. Above-mentioned structure makes by the high-pressure steam of second exhaust passage exhaust can condense into water, then discharges to preset position through export 112 to avoid condensate water to flow to pot cover surface, flow even on the desktop, consequently the user needn't wipe repeatedly, and then improved user's use and experienced.

As shown in fig. 11 and 12, in the embodiment, the pot cover body 30 is provided with a mounting opening 311, the pot cover further includes a fixing frame 50 disposed at the mounting opening 311, the fixing frame 50 has a groove 51 recessed downward, the steam box is mounted on the pot cover body 30 through the fixing frame 50, and at least a part of the steam box is located in the groove 51. The structure can utilize the idle space of the upper part of the pot cover body 30, thereby being beneficial to the miniaturization design. In addition, above-mentioned structure makes when the user takes off the steam box, and the mount opening 311 can be shutoff to the mount, prevents that inner structure from revealing, guarantees the clean and tidy of structure.

As shown in fig. 11 to 13, in the present embodiment, the pot cover body 30 includes a face cover 31, an inner liner 32 and an inner cover 33 sequentially arranged from outside to inside, the second exhaust passage is arranged on the inner cover 33, the inner liner 32 is provided with a cover 321 covering the pressure limiting valve 40, and the cover 321 and the bottom wall of the groove 51 are provided with a first exhaust hole 323 and a second exhaust hole 511 respectively corresponding to the inlet 111 of the box body 10 of the steam box. The above structure enables the gas exhausted from the second exhaust path to enter the condenser tube 20 from the cover 321 through the first exhaust hole 323, the second exhaust hole 511 and the inlet 111 in sequence, so as to be condensed. The structure is simple and easy to realize. Preferably, in the present embodiment, the box body 11 is provided with a third mounting tube extending downward and penetrating up and down, wherein the third mounting tube is communicated with the first mounting tube. During installation, the third installation cylinder sequentially penetrates through the second exhaust hole 511 and the first exhaust hole 323 from top to bottom until the bottom surface of the box body 11 is attached to the bottom surface of the groove 51. Preferably, in the present embodiment, a third sealing structure 100 is disposed between the third mounting cylinder and the hole walls of the second air exhaust holes 511 and the first air exhaust holes 323, and the above structure prevents high-temperature steam from flowing out through the third mounting cylinder and the hole walls of the second air exhaust holes 511 and the first air exhaust holes 323, thereby improving the service life of the cooking utensil.

As shown in fig. 11, 13 and 14, in the present embodiment, the third sealing structure 100 is a silicone sealing cylinder, and the silicone sealing cylinder includes a cylinder body, a first lip disposed on an outer wall of the cylinder body and extending outward, and a second lip located below the first lip. The cylinder body is clamped between the third mounting cylinder and the hole wall of the second exhaust hole 511 and the hole wall of the first exhaust hole 323, the first lip is clamped between the bottom surface of the box body 11 and the fixed frame 50, and the second lip is clamped between the fixed frame 50 and the cover body 321. The structure can further improve the sealing performance, thereby prolonging the service life of the cooking utensil.

As shown in fig. 11 and 12, in the present embodiment, the liner 32 is provided with a water outlet 322, and the outlet 112 of the box body 10 of the steam box is communicated with the water outlet 322. The structure enables the condensed water discharged by the steam box to be guided to the preset position below the pot cover. Preferably, in this embodiment, the water outlet 322 is connected to the outlet 112 through a hose. The structure is simple, and the installation and the arrangement are convenient.

As shown in fig. 11, in the present embodiment, the lid body 30 is provided with the floating cooling air rod 60, the box body 10 is provided with the first exhaust channel 1 which is not communicated with the inside but is communicated with the outside atmosphere, and the cooling air rod 60 is disposed corresponding to the first exhaust channel 1. The above structure allows the cold air to be rapidly discharged through the first exhaust passage 1 without changing the position of the cold air lever 60.

As shown in fig. 10 to 14, in the present embodiment, a second exhaust passage is provided on the pot cover body 30, a pressure limiting valve 40 is provided at the second exhaust passage, when the pressure limiting valve 40 opens the second exhaust passage, steam exhausted from the second exhaust passage enters the box body 10 from the inlet 111 of the box body 10 of the steam box, a mounting opening 311 is provided on the pot cover body 30, the pot cover further includes a fixing frame 50 provided at the mounting opening 311, the fixing frame 50 has a groove 51 recessed downward, the steam box is mounted on the pot cover body 30 through the fixing frame 50, at least a part of the steam box is located in the groove 51, the pot cover body 30 includes a face cover 31, an inner liner 32 and an inner cover 33 which are sequentially arranged from outside to inside, the second exhaust passage is provided on the inner cover 33, a cover body 321 which covers the pressure limiting valve 40 is provided on the inner liner 32, a first exhaust hole 323 and a second exhaust hole 511 which correspond to the inlet 111 of the box body 10 of the steam box are provided on the bottom walls of the cover body, the lining 32 is provided with a water outlet 322, the outlet 112 of the box body 10 of the steam box is communicated with the water outlet 322, the inner cover 33 is provided with a floating cold air rod 60, the box body 10 is provided with a first exhaust passage 1 which is not communicated with the inside but communicated with the outside atmosphere, and the cold air rod 60 is arranged corresponding to the first exhaust passage 1.

The present application also provides a pressure cooking appliance, an embodiment (not shown in the figures) of a pressure cooking appliance according to the present application comprises: the pot cover is characterized by comprising a pot body and a pot cover covered on the pot body. The pot cover has the advantages of preventing water after steam is condensed from flowing onto a table top and the surface of the pot cover, so that the pressure cooking appliance with the pot cover also has the advantages.

In this embodiment, the pot body comprises a pot body and a water storage box arranged on the pot body, and the outlet 112 of the box body 10 of the steam box of the pot cover is communicated with the water storage box. The structure enables condensed water after condensation to be discharged into the water storage box, avoids the phenomenon that the condensed water flows to the pot cover, the pot body and the desktop, and can improve the use experience of users. Preferably, in this embodiment, the water storage box is detachably disposed on the pot body, and when the water in the water storage box is too much, the water storage box can be detached, and the condensed water in the water storage box is poured out and then is installed on the pot body again. The structure is simple, and the operation by a user is convenient.

It should be noted that, in long-term research, the inventor found that if the steam is directly introduced into the water storage box, the steam discharged from the pressure cooking device may splash and cause loud noise. In order to solve the above problems, the inventor thinks of solving the above problems by reducing the pressure and temperature of the steam introduced into the water storage box, and further, the inventor adopts a technical scheme of arranging a cooling structure in the steam box to realize the early cooling of the steam.

In this embodiment, the temperature of the condensed water entering the water storage box is less than or equal to 70 ℃. Therefore, water in the water storage box can be further prevented from splashing, and noise is reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam box, comprising:

the steam box comprises a box body (10) and a box cover (12) arranged on the box body (11), wherein the box body (10) is provided with an inlet (111) and an outlet (112), and steam can enter the box body (10) through the inlet (111);

the cooling structure is arranged on the box body (10), the cooling structure can absorb the heat of the steam in the box body (10) so that the steam is condensed into condensed water, and the condensed water can be discharged from the outlet (112).

2. The steam box according to claim 1, wherein the box body (10) is filled with a cooling liquid, the cooling structure isolates the steam from the cooling liquid, and the steam exchanges heat with the cooling liquid through the cooling structure.

3. A steam box according to claim 2, wherein the cooling structure comprises a condensation pipe (20) arranged in the box body (10), a first end (21) of the condensation pipe (20) is communicated with the inlet (111), a second end (22) of the condensation pipe (20) is communicated with the outlet (112), and an outer wall of the condensation pipe (20) is contacted with the cooling liquid to cool the steam in the condensation pipe (20).

4. A steam box according to claim 3, wherein the condensation duct (20) is arranged curved.

5. A steam box according to claim 3, wherein the inlet (111) and the outlet (112) are provided on the box body (11), and the box body (11) is further provided with a fixing structure (113) for fixing the condensation pipe (20).

6. A steam box according to claim 3, wherein the cooling structure further comprises a heat sink (110a) provided on the condensation duct (20).

7. A steam box according to claim 1, characterized in that a cavity is formed between the box body (11) and the cover (12), and the box body (10) is provided with a first exhaust channel (1) which is not communicated with each other but is communicated with the outside atmosphere.

8. The steam box according to claim 1, wherein the box body (11) and the cover (12) are of a split structure, a cavity is formed between the box body (11) and the cover (12), a cylinder (114) which extends upwards and penetrates is arranged on the box body (11), an avoiding hole (121) is arranged on the cover (12), the end part, far away from the box body (11), of the cylinder (114 is penetrated out through the avoiding hole (121), and a first exhaust channel (1) which is not communicated with the cavity but communicated with the external atmosphere is formed in a channel in the cylinder (114).

9. A steam box according to claim 1, wherein the cooling structure is a water-cooled plate (120) arranged within the box body (10), or,

the cooling structure comprises a condensation pipe (20) arranged in the box body (10) and a semiconductor refrigeration piece (130) arranged on the condensation pipe (20), wherein a first end (21) of the condensation pipe (20) is communicated with the inlet (111), a second end (22) of the condensation pipe (20) is communicated with the outlet (112), the semiconductor refrigeration piece (130) can absorb heat of steam in the condensation pipe (20) under the condition of electrification so as to condense the steam in the condensation pipe (20) into condensed water, or,

the cooling structure comprises a condensation pipe (20) arranged in the box body (10) and cooling fins (110b) arranged on the condensation pipe (20), wherein a first end (21) of the condensation pipe (20) is communicated with the inlet (111), and a second end (22) of the condensation pipe (20) is communicated with the outlet (112).

10. A steam box according to claim 1, wherein the cooling structure is provided on the outside of the box body (10).

11. A steam box according to claim 10, wherein the cooling structure is a duct (140) arranged outside the box body (10).

12. A pot cover, comprising: lid body (30) and steam box, characterized in that the steam box is a steam box according to any one of claims 1 to 11.

13. The lid of claim 12, characterized in that a second exhaust channel is arranged on the lid body (30), a pressure limiting valve (40) is arranged at the second exhaust channel, and when the pressure limiting valve (40) opens the second exhaust channel, the steam exhausted from the second exhaust channel enters the box body (10) from the inlet (111) of the box body (10) of the steam box.

14. The lid of claim 13, wherein the lid body (30) is provided with a mounting opening (311), the lid further comprises a fixing frame (50) disposed at the mounting opening (311), the fixing frame (50) has a recess (51) recessed downward, the steam box is mounted on the lid body (30) through the fixing frame (50), and at least a part of the steam box is located in the recess (51).

15. The pot cover according to claim 12, wherein the pot cover body (30) is provided with a floatable cold air rod (60), the box body (10) of the steam box is provided with a first exhaust channel (1) which is not communicated with the inside of the steam box but is communicated with the outside atmosphere, and the cold air rod (60) is arranged corresponding to the first exhaust channel (1).

16. The pot cover according to claim 14, wherein the pot cover body (30) comprises a face cover (31), an inner liner (32) and an inner cover (33) which are sequentially arranged from outside to inside, the second exhaust passage is arranged on the inner cover (33), a cover body (321) which covers the pressure limiting valve (40) is arranged on the inner liner (32), the cover body (321) and the bottom wall of the groove (51) are respectively provided with a first exhaust hole (323) and a second exhaust hole (511) which correspond to the inlet (111) of the box body (10) of the steam box, the inner liner (32) is provided with a water outlet (322), the outlet (112) of the box body (10) of the steam box is communicated with the water outlet (322), the inner cover (33) is provided with a floatable cold air rod (60), the box body (10) is provided with a first exhaust passage (1) which is not communicated with the inside but is communicated with the outside atmosphere, the cold air rod (60) is arranged corresponding to the first exhaust channel (1).

17. A pressure cooking appliance comprising: a pot body and a pot cover covering the pot body, wherein the pot cover is the pot cover of any one of claims 12 to 16.

18. Pressure cooking appliance according to claim 17, characterised in that the pot comprises a pot body and a water storage box arranged on the pot body, the outlet (112) of the box (10) of the steam box of the pot cover being in communication with the water storage box.

19. The pressure cooking appliance of claim 18, wherein the temperature of the condensed water entering the water storage box is 70 degrees or less.