Cooling structure and pressure cooker

Abstract

The present invention provides a cooling structure and a pressure cooker. The cooling structure includes a cooling plate and a heating part. The cooling plate has an input port, an outlet port and at least one cooling channel. The inlet port of the cooling channel is connected to the input port, and the outlet port 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 a cooking cavity to absorb the heat in the cooking cavity. The input port is used to input fluid into the cooling channel, and the outlet port is used to output the fluid flowing through the cooling channel to remove the heat in the cooking cavity through the fluid. The heating part is connected to the cooling plate, and the heating part is used to heat at least a part of the structure of the cooling plate to eliminate the condensed water generated on the cooling plate. With this solution, after the pressure cooker is cooked, the heat in the pressure cooker absorbed by the cooling plate can be removed by gas or liquid. Moreover, after cooling, the cooling plate can be heated by the heating part, thereby realizing the rapid cooling of the pressure cooker and avoiding the generation of condensed water, thereby improving the 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 have the characteristics of fast cooking, energy saving and convenience. After the cooking work is completed, the conventional pressure cooker products on the market are in a high temperature and high pressure state. In order to ensure safety, you need to wait for the pressure cooker to cool down before opening the lid. When the pressure cooker cooks porridge, soup and other sticky foods, the food in the pot may spray out even if you only open the exhaust valve. You need to wait slowly for the pressure in the pot to drop before you can safely open the lid. Due to the long waiting time, the user experience is not good. Therefore, it is considered to design a cooling structure to achieve rapid cooling of the pressure cooker. Moreover, if the cooling speed is accelerated, condensed water will be generated in the pressure cooker, affecting the cooking effect and user experience. Therefore, it is also necessary to solve the problem of condensed water generated in the pressure cooker. Summary of the invention

[0003] The invention provides a cooling structure and a pressure cooker, so as to realize rapid cooling of the pressure cooker and avoid the generation of condensed water.

[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 in communication with the input port, and the outlet of the cooling channel being in communication with 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 to take away heat in the cooking cavity through the fluid; a heating portion, the heating portion is connected to the cooling plate, and the heating portion is used to heat at least a portion of the structure of the cooling plate to eliminate condensed water generated on the cooling plate.

[0005] Furthermore, the cooling structure comprises a coil, at least a portion of which is disposed in the cooling channel, and the coil is used to heat the cooling plate.

[0006] Furthermore, there are a plurality of cooling channels, and the plurality of cooling channels are distributed in the cooling disk, and the coil is distributed in at least a portion of the plurality of cooling channels.

[0007] Furthermore, the cooling channel is an arc-shaped channel, and the coil extends along an extension direction of the cooling channel.

[0008] Furthermore, the coil is an electromagnetic induction coil or a heating wire.

[0009] Furthermore, the heating part also includes: a temperature sensor, which is arranged in the cooling plate, and the temperature sensor is used to detect the temperature in the cooling plate; a controller, and the temperature sensor and the coil are electrically connected to the controller, and the controller can receive temperature information detected by the temperature sensor and control the coil to be powered on or off according to the temperature information.

[0010] Furthermore, the heating part further comprises: a fuse connected to the coil; a fixing member arranged in the cooling plate, and the fuse is arranged on the fixing member.

[0011] Further, the fixing member includes: a plate body, the plate body is fixed in the cooling plate, the plate body has a slot; a first limiting plate, arranged on the plate body, the first limiting plate has a straight state and a bent state, when the first limiting plate is in the straight state, the first limiting plate is located in the slot, and the first limiting plate avoids the fuse; when the first limiting plate is in the bent state, the first limiting plate presses the fuse onto the plate body.

[0012] 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.

[0013] Further, the cooling plate includes an upper plate body and a lower plate body connected to each other, at least a portion of the heating part is located between the upper plate body and the lower plate body, 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.

[0014] 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.

[0015] 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 above-mentioned cooling structure, 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.

[0016] The technical solution of the present invention is applied to provide a cooling structure, which includes a cooling plate and a heating part. The cooling plate has an input port, an outlet port and at least one cooling channel. The inlet port of the cooling channel is connected to the input port, and the outlet port 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 into the cooling channel, and the outlet port is used to output the fluid flowing through the cooling channel to remove the heat in the cooking cavity through the fluid. The heating part is connected to the cooling plate, and the heating part is used to heat at least a part of the structure of the cooling plate to eliminate the condensed water generated on the cooling plate. 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 removed by the gas or liquid. Moreover, after cooling, the cooling plate can be heated by the heating part to eliminate the condensed water generated on the cooling plate during the cooling process, thereby realizing the rapid cooling of the pressure cooker and avoiding the generation of condensed water, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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:

[0018] Figure 1 A schematic diagram of a cooling structure provided by Embodiment 1 of the present invention is shown;

[0019] Figure 2 Shows Figure 1 An internal view of the cooling structure in FIG.

[0020] Figure 3 Shows Figure 2 A schematic diagram of the structure of the fixing parts;

[0021] Figure 4 Shows Figure 2 Schematic diagram of the temperature sensor in;

[0022] Figure 5 A schematic diagram of a cooling structure provided by a second embodiment of the present invention is shown (the heating part is not shown);

[0023] Figure 6 Shows Figure 5 Another schematic diagram of the cooling structure in FIG.

[0024] Figure 7 Shows Figure 5 Schematic diagram of the upper plate in;

[0025] Figure 8 Shows Figure 5 Schematic diagram of the lower disc in;

[0026] Fig. 9 A schematic diagram of a pressure cooker provided in Embodiment 3 of the present invention is shown.

[0027] The above drawings include the following reference numerals:

[0028] 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 ring member; 25. third ring member; 30. lower disk; 31. second groove; 32. lower body; 33. guide rib; 34. lower heat dissipation rib; 35. second ring member; 36. limit ring; 37. fourth ring member; 41. first cylinder; 42. second cylinder; 43. first step; 44. second step; 50. pot body; 60. pot cover; 70. heating part; 71. coil; 72. temperature sensor; 73. fuse; 74. fixing member; 75. plate; 76. first limit plate; 77. second limit plate. DETAILED DESCRIPTION

[0029] 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.

[0030] As shown in the accompanying drawings, an embodiment of the present invention provides a cooling structure for cooling a 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 to the cooling channel 13, and the outlet port 12 is used to output the fluid flowing through the cooling channel 13, so as to take away the heat in the cooking cavity through the fluid; a heating part 70, the heating part 70 is connected to the cooling plate, and the heating part 70 is used to heat at least a portion of the structure of the cooling plate to eliminate condensed water generated on the cooling plate.

[0031] The technical solution of this embodiment is applied to provide a cooling structure, which includes a cooling plate and a heating part 70. 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 as to remove the heat in the cooking cavity through the fluid. The heating part 70 is connected to the cooling plate, and the heating part 70 is used to heat at least a part of the structure of the cooling plate to eliminate the condensed water generated on the cooling plate. 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 removed by the gas or liquid. Moreover, after cooling, the cooling plate can be heated by the heating part 70 to eliminate the condensed water generated on the cooling plate during the cooling process, thereby realizing the rapid cooling of the pressure cooker and avoiding the generation of condensed water, thereby improving the user experience.

[0032] In this embodiment, the cooling structure includes a coil 71, at least a portion of which is disposed in the cooling channel 13, and the coil 71 is used to heat the cooling plate. In this way, the cooling plate can be heated by the coil 71, and at least a portion of the coil 71 is disposed in the cooling channel 13 to avoid being exposed to the outside, thereby reducing the occupied space.

[0033] Specifically, the coil 71 is an electromagnetic induction coil 71 or a heating wire. In this embodiment, the cooling plate is made of a metal material. The coil 71 can be cast together with the cooling plate, or the coil 71 and the cooling plate can be processed separately and then assembled together.

[0034] In this embodiment, there are multiple cooling channels 13, and the multiple cooling channels 13 are distributed in the cooling disk, and the coil 71 is distributed in at least a part of the multiple cooling channels 13. By providing multiple cooling channels 13, the cooling effect of the cooling disk during cooling can be improved, and the cooling speed can be increased. Distributing the coil 71 in at least a part of the multiple cooling channels 13 can cool down different positions of the cooling disk to eliminate condensed water attached to the surface of the cooling disk during the cooling process.

[0035] In this embodiment, the cooling channel 13 is an arc-shaped channel, and the coil 71 extends along the extension direction of the cooling channel 13. The above arrangement can increase the flow path of the fluid and improve the cooling effect. The extension of the coil 71 along the extension direction of the cooling channel 13 can improve the heating effect.

[0036] In this embodiment, the heating unit 70 further includes: a temperature sensor 72, which is arranged in the cooling plate, and the temperature sensor 72 is used to detect the temperature in the cooling plate; a controller, the temperature sensor 72 and the coil 71 are electrically connected to the controller, and the controller can receive the temperature information detected by the temperature sensor 72, and control the coil 71 to be powered on or off according to the temperature information. The above arrangement can save energy and improve safety. For example, when the temperature sensor 72 detects that the temperature of the cooling plate reaches a preset value, it is considered that the condensed water has been eliminated, or it is a safety critical value, and the controller controls the coil 71 to be powered off to stop heating.

[0037] In order to improve safety, the heating part 70 further includes: a fuse 73 connected to the coil 71; a fixing member 74 disposed in the cooling plate, and the fuse 73 is disposed on the fixing member 74. The fixing member 74 facilitates the installation of the fuse 73. When the heat in the cooling plate is too high, the fuse 73 melts, so that the coil 71 is powered off, thereby stopping heating and avoiding danger.

[0038] Specifically, the fixing member 74 includes: a plate body 75, which is fixed in the cooling plate and has a slot; a first limiting plate 76, which is arranged on the plate body 75 and has a straight state and a bent state. When the first limiting plate 76 is in the straight state, the first limiting plate 76 is located in the slot and avoids the fuse 73; when the first limiting plate 76 is in the bent state, the first limiting plate 76 presses the fuse 73 on the plate body 75. During assembly, the fuse 73 is placed on the plate body 75, and then a force is applied to the first limiting plate 76 to bend and deform the first limiting plate 76 and press the fuse 73, thereby fixing the fuse 73. A plurality of first limiting plates 76 can be provided, and the fixing effect of the fuse 73 is improved by using a plurality of first limiting plates 76.

[0039] Optionally, the fixing member 74 further includes a second limiting plate 77, and the second limiting plate 77 is used to press the temperature sensor 72 onto the plate body 75. The second limiting plate 77 has the same structure as the first limiting plate 76. In this embodiment, the fixing member 74 is an integrated structure.

[0040] In this embodiment, there are multiple cooling channels 13, and the multiple cooling channels 13 are distributed in the cooling disk. The 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 multiple 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 multiple cooling channels 13 through the first conical surface 14; and / or, the 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 multiple cooling channels 13 are arranged around the second conical surface 15, so that the fluid output from the multiple cooling channels 13 is guided to the discharge port 12 through the second conical surface 15. By setting 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 multiple cooling channels 13 in a dispersed manner, and the flow resistance can be reduced. Correspondingly, by setting the second conical surface 15, the fluid output from the multiple 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.

[0041] Optionally, 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.

[0042] In this embodiment, the cooling plate includes an upper plate body 20 and a lower plate body 30 connected to each other, at least a portion of the heating portion 70 is located between the upper plate body 20 and the lower plate body 30, 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.

[0043] In this embodiment, 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 multiple 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 cooperation of multiple guide ribs 33 and the upper plate body 20 facilitates the formation of the cooling channel 13.

[0044] Optionally, 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.

[0045] Optionally, 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.

[0046] Optionally, 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.

[0047] 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.

[0048] Optionally, 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.

[0049] 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.

[0050] 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.

[0051] Optionally, in an embodiment not shown in the figure, there are multiple cooling plates, which are stacked and arranged, with a 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.

[0052] 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 is finished 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 and reducing waiting time. Moreover, the generated condensed water can be eliminated by the heating part 70, thereby improving the user experience.

[0053] 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.

[0054] 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 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 discharge port (12) is used to output the fluid flowing through the cooling channel (13) to remove the heat in the cooking cavity through the fluid; a heating part (70), the heating part (70) being connected to the cooling disk, the heating part (70) being used to heat at least a part of the structure of the cooling disk to eliminate condensed water generated on the cooling disk; The cooling structure comprises a coil (71), at least a portion of the coil (71) is arranged in the cooling channel (13), and the coil (71) is used to heat the cooling disk; The heating part (70) comprises a fuse (73) and a fixing member (74), wherein the fuse (73) is connected to the coil (71); the fixing member (74) comprises: a plate body (75), wherein the plate body (75) is fixed in the cooling plate, and wherein the plate body (75) has a slot; a first limiting plate (76), which is arranged on the plate body (75), wherein the first limiting plate (76) has a straight state and a bent state, wherein when the first limiting plate (76) is in the straight state, the first limiting plate (76) is located in the slot, and the first limiting plate (76) avoids the fuse (73); when the first limiting plate (76) is in the bent state, the first limiting plate (76) presses the fuse (73) onto the plate body (75).

2. The cooling structure according to claim 1, characterized in that: There are a plurality of cooling channels (13), and the plurality of cooling channels (13) are distributed in the cooling disk, and the coil (71) is distributed in at least a portion of the cooling channels (13) among the plurality of cooling channels (13).

3. The cooling structure according to claim 1, characterized in that: The cooling channel (13) is an arc-shaped channel, and the coil (71) extends along the extension direction of the cooling channel (13).

4. The cooling structure according to claim 1, characterized in that: The coil (71) is an electromagnetic induction coil (71) or a heating wire.

5. The cooling structure according to claim 1, characterized in that: The heating unit (70) further comprises: A temperature sensor (72) is disposed in the cooling plate, and the temperature sensor (72) is used to detect the temperature in the cooling plate; A controller, wherein the temperature sensor (72) and the coil (71) are both electrically connected to the controller, and the controller can receive temperature information detected by the temperature sensor (72) and control the coil (71) to be powered on or off according to the temperature information.

6. The cooling structure according to claim 1, characterized in that: 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 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).

7. 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, at least a portion of the heating portion (70) is located between the upper plate body (20) and the lower plate body (30), 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).

8. 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).

9. 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 8, 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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