Cooling structure and pressure cooker

Abstract

The present invention provides a cooling structure and a pressure cooker. The cooling structure is used to cool the cooking cavity of the pressure cooker. The cooling structure includes: a cooling plate, the cooling plate has an input port, an outlet port and a cooling channel, the inlet of the cooling channel is connected to the input port, the outlet of the cooling channel is connected to the outlet port, the cooling channel can be one or more cooling channels, and the multiple cooling channels are distributed in the cooling plate; at least a part of the structure of the cooling plate is used to be arranged in the cooking cavity to absorb the heat in the cooking cavity, the input port is used to input fluid to the cooling channel, and the outlet port is used to output the fluid flowing through the cooling channel, so that the heat absorbed by the cooling plate is taken away by the fluid. With this solution, when the pressure cooker is cooked, gas or liquid is input into the cooling plate of the cooling structure, so that the heat in the pressure cooker absorbed by the cooling plate can be taken away by the gas or liquid, thereby realizing rapid cooling of the pressure cooker, reducing waiting time, and improving user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking utensils, and in particular to a cooling structure and a pressure cooker. Background Art

[0002] Pressure cookers are fast in cooking and energy-saving and convenient. After cooking, conventional pressure cookers on the market are in a high-temperature and high-pressure state. To ensure safety, you need to wait for the pressure cooker to cool down before opening the lid. When cooking viscous foods such as porridge and soup in a pressure cooker, the food in the pot may spray out even if you only open the exhaust valve. You need to wait for the pressure in the pot to drop before you can safely open the lid. The long waiting time affects the user experience. Summary of the invention

[0003] The invention provides a cooling structure and a pressure cooker to realize rapid cooling of the pressure cooker.

[0004] To achieve the above objective, according to one aspect of the present invention, a cooling structure is provided for cooling a cooking cavity of a pressure cooker, the cooling structure comprising: a cooling plate, the cooling plate having an input port, an output port and at least one cooling channel, the inlet of the cooling channel being connected to the input port, and the outlet of the cooling channel being connected to the output port; at least a portion of the structure of the cooling plate is used to be arranged in the cooking cavity to absorb heat in the cooking cavity, the input port is used to input fluid into the cooling channel, and the output port is used to output fluid flowing through the cooling channel, so that the heat absorbed by the cooling plate is taken away by the fluid.

[0005] Further, there are multiple cooling channels, and the multiple cooling channels are distributed in the cooling disk. The position in the cooling disk corresponding to the input port has a first conical surface protruding toward the input port, and the inlets of the multiple cooling channels are arranged around the first conical surface to guide the fluid input from the input port into the multiple cooling channels through the first conical surface; and / or, the position in the cooling disk corresponding to the discharge port has a second conical surface protruding toward the discharge port, and the outlets of the multiple cooling channels are arranged around the second conical surface to guide the fluid output from the multiple cooling channels into the discharge port through the second conical surface.

[0006] Furthermore, the cooling disk is a circular structure, and there are multiple cooling channels, each of which is an arc-shaped channel, each of which extends along the circumference of the cooling disk, and multiple cooling channels are distributed along the radial direction of the cooling disk.

[0007] Furthermore, the cooling plate comprises an upper plate body and a lower plate body connected to each other, and the area between the upper plate body and the lower plate body forms a plurality of cooling channels; the outer surface of the upper plate body has a plurality of first grooves, and / or the outer surface of the lower plate body has a plurality of second grooves.

[0008] Furthermore, there are multiple cooling channels, and the cooling plate includes an upper plate body and a lower plate body, wherein the lower plate body includes a lower body and a plurality of guide ribs spaced apart on the lower body, the lower body is connected to the upper plate body, each of the guide ribs abuts against the upper plate body, and the lower body, the upper plate body and the area between two adjacent guide ribs form a cooling channel.

[0009] Furthermore, the upper disk body includes an upper body and a plurality of upper heat dissipation ribs spaced apart on the upper body, the upper body is connected to the lower body, each of the guide ribs abuts against the upper body, the lower body, the upper body and the area between two adjacent guide ribs form a cooling channel, and each of the cooling channels is provided with at least one upper heat dissipation rib; the lower disk body also includes a plurality of lower heat dissipation ribs, and the plurality of lower heat dissipation ribs are spaced apart on the lower body, and each of the cooling channels is provided with at least one lower heat dissipation rib.

[0010] Furthermore, the cooling plate includes an upper plate body, a lower plate body and a seal, the upper plate body and the lower plate body are connected, the area between the upper plate body and the lower plate body forms a plurality of cooling channels, and the seal is located at the connection between the upper plate body and the lower plate body.

[0011] Further, the upper disk body includes an upper body and a first annular member arranged on the upper body, and the lower disk body includes a lower body, a second annular member arranged on the periphery of the lower body, and a limiting ring arranged on the periphery of the second annular member; wherein the upper body and the lower body are spaced apart, a plurality of cooling channels are located between the upper body and the lower body, the limiting ring abuts against the edge of the upper body, the first annular member and the second annular member are sleeved, and the sealing member includes a first sealing ring, which is located between the first annular member and the second annular member.

[0012] Further, a first cylinder, the first cylinder is connected to the input port to input fluid, and the outer wall of the first cylinder has a first step for limiting cooperation with the lid of the pressure cooker; a second cylinder, the second cylinder is connected to the discharge port to output fluid, and the outer wall of the second cylinder has a second step for limiting cooperation with the lid of the pressure cooker.

[0013] Furthermore, there are multiple cooling disks, which are stacked, with a ventilation space between two adjacent cooling disks, and the discharge port of one of the two adjacent cooling disks is connected to the input port of the other cooling disk.

[0014] According to another aspect of the present invention, a pressure cooker is provided, comprising a pot body, a pot cover and a cooling structure, wherein the pot cover is openably and closably arranged on the pot body, the cooling structure is the cooling structure provided above, and the cooling structure is arranged on the pot cover, and when the pot cover is closed, the cooling plate of the cooling structure is located in the pot body.

[0015] The technical solution of the present invention is applied to provide a cooling structure for cooling the cooking cavity of a pressure cooker, the cooling structure comprising: a cooling plate, the cooling plate having an input port, an outlet port and at least one cooling channel, the inlet of the cooling channel is connected to the input port, and the outlet of the cooling channel is connected to the outlet port; at least a part of the structure of the cooling plate is used to be arranged in the cooking cavity to absorb the heat in the cooking cavity, the input port is used to input fluid to the cooling channel, and the outlet port is used to output the fluid flowing through the cooling channel, so that the heat absorbed by the cooling plate is taken away by the fluid. With this solution, when the pressure cooker is cooked, gas or liquid is input into the cooling plate of the cooling structure, so that the heat in the pressure cooker absorbed by the cooling plate can be taken away by the gas or liquid, thereby realizing rapid cooling of the pressure cooker, reducing waiting time, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of a cooling structure provided by Embodiment 1 of the present invention is shown;

[0018] Figure 2 Shows Figure 1 Another schematic diagram of the cooling structure in FIG.

[0019] Figure 3 Shows Figure 1 Schematic diagram of the inner side of the upper plate;

[0020] Figure 4 Shows Figure 3 Schematic diagram of the outer side of the upper plate;

[0021] Figure 5 Shows Figure 1 Schematic diagram of the inner side of the lower disc;

[0022] Figure 6Shows Figure 5 Schematic diagram of the outer side of the lower disc;

[0023] Figure 7 Shows the application Figure 1 A schematic diagram of a pressure cooker with a cooling structure;

[0024] Figure 8 A schematic diagram of a cooling structure provided by a second embodiment of the present invention is shown;

[0025] Fig. 9 Shows Figure 8 A cross-sectional view of the cooling structure in FIG.

[0026] Fig.10 Shows Figure 8 Another cross-sectional view of the cooling structure in FIG.

[0027] Fig.11 Shows Figure 8 Schematic diagram of the fluid flow direction in the cooling structure;

[0028] Fig.12 Shows the application Figure 8 Schematic diagram of the cooling structure of the pressure cooker.

[0029] The above drawings include the following reference numerals:

[0030] 11. input port; 12. discharge port; 13. cooling channel; 14. first conical surface; 15. second conical surface; 20. upper disk; 21. first groove; 22. upper body; 23. upper heat dissipation rib; 24. first annular member; 25. third annular member; 30. lower disk; 31. second groove; 32. lower body; 33. guide rib; 34. lower heat dissipation rib; 35. second annular member; 36. limiting ring; 37. fourth annular member; 41. first cylinder; 42. second cylinder; 43. first step; 44. second step; 50. pot body; 60. pot cover. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As shown in the accompanying drawings, embodiment 1 of the present invention provides a cooling structure for cooling the cooking cavity of a pressure cooker, the cooling structure comprising: a cooling plate, the cooling plate having an input port 11, an outlet port 12 and at least one cooling channel 13, the inlet of the cooling channel 13 is connected to the input port 11, and the outlet of the cooling channel 13 is connected to the outlet port 12; at least a portion of the structure of the cooling plate is used to be arranged in the cooking cavity to absorb heat in the cooking cavity, the input port 11 is used to input fluid into the cooling channel 13, and the outlet port 12 is used to output fluid flowing through the cooling channel 13, so that the heat absorbed by the cooling plate is taken away by the fluid.

[0033] The technical solution of the present invention is applied, and the cooling structure includes: a cooling plate, the cooling plate has an input port 11, an outlet port 12 and at least one cooling channel 13, the inlet of the cooling channel 13 is connected to the input port 11, and the outlet of the cooling channel 13 is connected to the outlet port 12; at least a part of the structure of the cooling plate is used to be arranged in the cooking cavity to absorb the heat in the cooking cavity, the input port 11 is used to input fluid to the cooling channel 13, and the outlet port 12 is used to output the fluid flowing through the cooling channel 13, so that the heat absorbed by the cooling plate is taken away by the fluid. With this solution, when the pressure cooker is cooked, gas or liquid is input into the cooling plate of the cooling structure, so that the heat in the pressure cooker absorbed by the cooling plate can be taken away by gas or liquid, thereby realizing rapid cooling of the pressure cooker, reducing waiting time, and improving user experience. In this embodiment, the cooling channel 13 can be set to one or more. In order to improve the cooling effect, the cooling channel 13 can be set to multiple, and the multiple cooling channels 13 are distributed in the cooling plate.

[0034] In this embodiment, a position corresponding to the input port 11 in the cooling disk has a first conical surface 14 protruding toward the input port 11, and the inlets of the plurality of cooling channels 13 are arranged around the first conical surface 14, so that the fluid input from the input port 11 is guided to the plurality of cooling channels 13 through the first conical surface 14; and / or, a position corresponding to the discharge port 12 in the cooling disk has a second conical surface 15 protruding toward the discharge port 12, and the outlets of the plurality of cooling channels 13 are arranged around the second conical surface 15, so that the fluid output from the plurality of cooling channels 13 is guided to the discharge port 12 through the second conical surface 15. By providing the first conical surface 14, the fluid input from the input port 11 can be guided, so that the fluid can flow to the inlets of the plurality of cooling channels 13 in a dispersed manner, and the flow resistance can be reduced. Correspondingly, by providing the second conical surface 15, the fluid output from the plurality of cooling channels 13 can be guided, so that the fluid can flow to the discharge port 12 in a concentrated manner, and the flow resistance can be reduced.

[0035] In this embodiment, the cooling plate is a circular structure, each cooling channel 13 is an arc-shaped channel, each cooling channel 13 extends along the circumference of the cooling plate, and multiple cooling channels 13 are distributed along the radial direction of the cooling plate. Through the above arrangement, the contact area between the cooling plate and the cooking cavity and the contact area between the fluid and the cooling plate can be increased, and the multiple cooling channels 13 are distributed relatively evenly, thereby improving the cooling effect. Optionally, the multiple cooling channels 13 are divided into two symmetrically arranged groups to improve the flow rate and heat exchange uniformity.

[0036] In this embodiment, the cooling plate includes an upper plate body 20 and a lower plate body 30 connected to each other, and the area between the upper plate body 20 and the lower plate body 30 forms a plurality of cooling channels 13; the outer surface of the upper plate body 20 has a plurality of first grooves 21, and / or the outer surface of the lower plate body 30 has a plurality of second grooves 31. The cooling plate is provided as an upper plate body 20 and a lower plate body 30 connected to each other, which is convenient for assembly and structural arrangement. The plurality of first grooves 21 on the outer surface of the upper plate body 20 can increase the contact area with the cooking cavity, thereby improving the heat exchange effect. The plurality of second grooves 31 on the outer surface of the lower plate body 30 can increase the contact area with the cooking cavity, thereby improving the heat exchange effect.

[0037] In this embodiment, the cooling plate includes an upper plate body 20 and a lower plate body 30, wherein the lower plate body 30 includes a lower body 32 and a plurality of guide ribs 33 arranged at intervals on the lower body 32, the lower body 32 is connected to the upper plate body 20, each guide rib 33 abuts against the upper plate body 20, and the lower body 32, the upper plate body 20 and the area between two adjacent guide ribs 33 form a cooling channel 13. In this way, the cooling channel 13 is formed by the cooperation of the plurality of guide ribs 33 and the upper plate body 20.

[0038] Furthermore, the upper disk body 20 includes an upper body 22 and a plurality of upper heat dissipation ribs 23 arranged at intervals on the upper body 22, the upper body 22 is connected to the lower body 32, each guide rib 33 abuts against the upper body 22, the lower body 32, the upper body 22 and the area between two adjacent guide ribs 33 form a cooling channel 13, and at least one upper heat dissipation rib 23 is arranged in each cooling channel 13; the lower disk body 30 also includes a plurality of lower heat dissipation ribs 34, the plurality of lower heat dissipation ribs 34 are arranged at intervals on the lower body 32, and at least one lower heat dissipation rib 34 is arranged in each cooling channel 13. By arranging the upper heat dissipation ribs 23 and the lower heat dissipation ribs 34, the contact area between the fluid and the physical structure of the cooling disk can be increased, and the heat exchange efficiency can be improved.

[0039] In this embodiment, the cooling plate includes an upper plate body 20, a lower plate body 30 and a sealing member, the upper plate body 20 and the lower plate body 30 are connected, the area between the upper plate body 20 and the lower plate body 30 forms a plurality of cooling channels 13, and the sealing member is located at the connection between the upper plate body 20 and the lower plate body 30. The above arrangement can facilitate the arrangement of the plurality of cooling channels 13, and the sealing member can improve the sealing effect and avoid leakage. Optionally, the middle part of the upper plate body 20 has a first avoidance hole, the middle part of the lower plate body 30 has a second avoidance hole, and the first avoidance hole is connected to the second avoidance hole.

[0040] In this embodiment, the upper disk body 20 includes an upper body 22 and a first annular member 24 disposed on the upper body 22, and the lower disk body 30 includes a lower body 32, a second annular member 35 disposed on the periphery of the lower body 32, and a stop ring 36 disposed on the periphery of the second annular member 35; wherein the upper body 22 and the lower body 32 are arranged at intervals, a plurality of cooling channels 13 are located between the upper body 22 and the lower body 32, the stop ring 36 abuts against the edge of the upper body 22, the first annular member 24 and the second annular member 35 are sleeved, and the sealing member includes a first sealing ring, which is located between the first annular member 24 and the second annular member 35. Through the above arrangement, a reliable connection between the upper disk body 20 and the lower disk body 30 can be achieved, and the sealing is tight.

[0041] Optionally, the upper disk body 20 further includes a third annular member 25 disposed in the middle of the upper body 22, the lower disk body 30 further includes a fourth annular member 37 disposed in the middle of the lower body 32, the third annular member 25 is sleeved with the fourth annular member 37, the seal further includes a second sealing ring, and the second sealing ring is located between the third annular member 25 and the fourth annular member 37. The cooling structure further includes a fastener, which is used to connect the upper disk body 20 and the lower disk body 30 to improve reliability.

[0042] In this embodiment, the cooling structure further includes: a first barrel 41, the first barrel 41 is connected to the input port 11 for inputting fluid, and the outer wall of the first barrel 41 has a first step 43 for limiting the cooperation with the pot cover 60 of the pressure cooker; a second barrel 42, the second barrel 42 is connected to the discharge port 12 for outputting fluid, and the outer wall of the second barrel 42 has a second step 44 for limiting the cooperation with the pot cover 60 of the pressure cooker. The first barrel 41 can facilitate the input of fluid into the cooling plate and can be assembled and fixed with the pot cover 60. The second barrel 42 can facilitate the output of fluid and can be assembled and fixed with the pot cover 60.

[0043] Optionally, both the first step 43 and the second step 44 have an annular groove for placing a sealing ring, which can improve the sealing performance of the pressure cooker.

[0044] Optionally, the cooling structure further includes a fan for supplying air to the input port 11 of the cooling disk. Alternatively, the cooling structure further includes a water pump for supplying water to the input port 11 of the cooling disk. The cooling disk is made of aluminum alloy material to reduce weight and improve heat exchange effect.

[0045] In the second embodiment, there are multiple cooling plates, which are stacked and arranged, with ventilation space between two adjacent cooling plates, and the discharge port 12 of one of the two adjacent cooling plates is connected to the input port 11 of the other cooling plate. By providing multiple cooling plates, the heat exchange area with the cooking cavity can be increased, thereby improving the cooling effect. Specifically, the specific structure of the cooling plate can adopt the structure of the cooling plate in the first embodiment.

[0046] Another embodiment of the present invention provides a pressure cooker, which includes a pot body 50, a pot cover 60 and a cooling structure. The pot cover 60 is openably and closably arranged on the pot body 50. The cooling structure is the cooling structure provided above. The cooling structure is arranged on the pot cover 60. When the pot cover 60 is closed, the cooling plate of the cooling structure is located in the pot body 50. The area in the pot body 50 is a cooking cavity. The cooling structure includes: a cooling plate, the cooling plate has an input port 11, an outlet port 12 and a cooling channel 13. The inlet of the cooling channel 13 is connected to the input port 11, the outlet of the cooling channel 13 is connected to the outlet port 12, there are multiple cooling channels 13, and the multiple cooling channels 13 are distributed in the cooling plate; at least a part of the structure of the cooling plate is used to be arranged in the cooking cavity to absorb the heat in the cooking cavity. The input port 11 is used to input fluid into the cooling channel 13, and the outlet port 12 is used to output the fluid flowing through the cooling channel 13, so that the heat absorbed by the cooling plate is taken away by the fluid. With this solution, when the pressure cooker finishes cooking, gas or liquid is input into the cooling plate of the cooling structure, so that the heat in the pressure cooker absorbed by the cooling plate can be taken away by the gas or liquid, thereby achieving rapid cooling of the pressure cooker, reducing waiting time and improving user experience.

[0047] Optionally, the cooling plate is located in the cooking cavity of the pot body 50, the first cylinder 41 passes through the pot cover 60, the second cylinder 42 passes through the pot cover 60, the first step 43 abuts against the inner wall of the pot cover 60, and the second step 44 abuts against the inner wall of the pot cover 60. There is a ventilation space between the upper surface of the cooling plate and the inner wall of the pot cover 60 to increase the contact area and improve the heat dissipation capacity.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling structure for cooling a cooking cavity of a pressure cooker, characterized in that: The cooling structure comprises: A cooling disk, the cooling disk having an input port (11), an output port (12) and at least one cooling channel (13), the inlet of the cooling channel (13) being in communication with the input port (11), and the outlet of the cooling channel (13) being in communication with the output port (12); At least a portion of the cooling plate is arranged in the cooking cavity to absorb heat in the cooking cavity, the input port (11) is used to input fluid into the cooling channel (13), and the discharge port (12) is used to output the fluid flowing through the cooling channel (13) so that the heat absorbed by the cooling plate is taken away by the fluid; There are a plurality of cooling channels (13), and the plurality of cooling channels (13) are distributed in the cooling plate. A position in the cooling disk corresponding to the input port (11) has a first conical surface (14) protruding toward the input port (11), and the inlets of the plurality of cooling channels (13) are arranged around the first conical surface (14) so ​​as to guide the fluid input from the input port (11) into the plurality of cooling channels (13) through the first conical surface (14); and / or a position in the cooling disk corresponding to the discharge port (12) has a second conical surface (15) protruding toward the discharge port (12), and the outlets of the plurality of cooling channels (13) are arranged around the second conical surface (15) so as to guide the fluid output from the plurality of cooling channels (13) into the discharge port (12) through the second conical surface (15).

2. The cooling structure according to claim 1, characterized in that: The cooling disk is a circular structure, and there are a plurality of cooling channels (13), each of which is an arc-shaped channel. Each of the cooling channels (13) extends along the circumference of the cooling disk, and a plurality of the cooling channels (13) are distributed radially along the cooling disk.

3. The cooling structure according to claim 1, characterized in that: The cooling plate comprises an upper plate body (20) and a lower plate body (30) which are connected to each other, and the area between the upper plate body (20) and the lower plate body (30) forms a plurality of cooling channels (13); the outer surface of the upper plate body (20) has a plurality of first grooves (21), and / or the outer surface of the lower plate body (30) has a plurality of second grooves (31).

4. The cooling structure according to claim 1, characterized in that: There are multiple cooling channels (13), and the cooling plate includes an upper plate body (20) and a lower plate body (30), wherein the lower plate body (30) includes a lower body (32) and a plurality of guide ribs (33) spaced apart on the lower body (32), the lower body (32) is connected to the upper plate body (20), each of the guide ribs (33) is in contact with the upper plate body (20), and the lower body (32), the upper plate body (20) and the area between two adjacent guide ribs (33) form a cooling channel (13).

5. The cooling structure according to claim 4, characterized in that: The upper disk body (20) comprises an upper body (22) and a plurality of upper heat dissipation ribs (23) arranged at intervals on the upper body (22); the upper body (22) is connected to the lower body (32); each of the guide ribs (33) abuts against the upper body (22); the lower body (32), the upper body (22) and the area between two adjacent guide ribs (33) form a cooling channel (13); and each of the cooling channels (13) is provided with at least one upper heat dissipation rib (23); The lower disk (30) further comprises a plurality of lower heat dissipation ribs (34), wherein the plurality of lower heat dissipation ribs (34) are arranged at intervals on the lower body (32), and at least one lower heat dissipation rib (34) is arranged in each cooling channel (13).

6. The cooling structure according to claim 1, characterized in that: The cooling plate comprises an upper plate body (20), a lower plate body (30) and a sealing member, wherein the upper plate body (20) and the lower plate body (30) are connected, and a plurality of cooling channels (13) are formed in an area between the upper plate body (20) and the lower plate body (30), and the sealing member is located at the connection between the upper plate body (20) and the lower plate body (30).

7. The cooling structure according to claim 6, characterized in that: The upper disk body (20) comprises an upper body (22) and a first annular member (24) arranged on the upper body (22); the lower disk body (30) comprises a lower body (32), a second annular member (35) arranged on the periphery of the lower body (32), and a limiting ring (36) arranged on the periphery of the second annular member (35); The upper body (22) and the lower body (32) are spaced apart, a plurality of cooling channels (13) are located between the upper body (22) and the lower body (32), the limiting ring (36) abuts against an edge of the upper body (22), the first annular member (24) and the second annular member (35) are sleeved, and the sealing member comprises a first sealing ring, which is located between the first annular member (24) and the second annular member (35).

8. The cooling structure according to claim 1, characterized in that: The cooling structure further comprises: A first cylinder (41), the first cylinder (41) being in communication with the input port (11) for inputting fluid, and the outer wall of the first cylinder (41) being provided with a first step (43) for limiting cooperation with a pot cover (60) of the pressure cooker; The second cylinder (42) is connected to the discharge port (12) to discharge the fluid, and the outer wall of the second cylinder (42) is provided with a second step (44) for limiting cooperation with the pot cover (60) of the pressure cooker.

9. The cooling structure according to any one of claims 1 to 8, characterized in that: There are multiple cooling disks, which are stacked and arranged, with a ventilation space between two adjacent cooling disks, and the discharge port (12) of one of the two adjacent cooling disks is connected to the input port (11) of the other cooling disk.

10. A pressure cooker, characterized in that: The pressure cooker comprises a pot body (50), a pot cover (60) and a cooling structure, wherein the pot cover (60) is openably and closably arranged on the pot body (50), and the cooling structure is a cooling structure as described in any one of claims 1 to 9, wherein the cooling structure is arranged on the pot cover (60), and when the pot cover (60) is closed, a cooling plate of the cooling structure is located inside the pot body (50).

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