Electric pressure cooker capable of quickly releasing pressure

Abstract

The utility model discloses an electric pressure cooker capable of quickly relieving pressure, which comprises a shell, a refrigerating machine, a refrigerating medium conveying pipeline and a fan component, an outer pot is arranged in the shell, a first accommodating cavity is arranged between the shell and the outer pot, the fan component is arranged in the first accommodating cavity, one end of the refrigerating medium conveying pipeline is connected with an output port of the refrigerating machine, and the other end of the refrigerating medium conveying pipeline is connected with an output port of the refrigerating machine. A part of the refrigerating medium conveying pipeline is arranged in the first containing cavity and located at an air outlet of the fan assembly, and the air outlet of the fan assembly faces the outer pot. According to the electric pressure cooker, the refrigerating medium is conveyed to pass through the first containing cavity through the refrigerating medium conveying pipeline, cold air around the refrigerating medium conveying pipeline is blown away through the fan assembly, heat transfer can be conducted between the cold air and hot air in the first containing cavity, the temperature in the electric pressure cooker is reduced, and then pressure reduction of the electric pressure cooker is achieved; intermittent work is not needed in the pressure reduction process, the pressure reduction efficiency can be improved, and the use efficiency of the electric pressure cooker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an electric pressure cooker capable of quickly releasing pressure. Background Art

[0002] Electric pressure cookers are common kitchen appliances. Their primary operating principle is to increase the pressure within the cooker to raise the boiling point of water, allowing food inside to cook quickly at high temperatures. During use, electric pressure cookers require a pressure relief valve to regulate the pressure within the cooker to ensure safety. Existing electric pressure cookers typically require the pressure relief valve to be opened intermittently or directly after operation to release the high-pressure gas inside the cooker to the atmosphere, thereby reducing the pressure inside the cooker. During this pressure relief process, the pressure relief valve needs to be operated intermittently to prevent food from overflowing, resulting in a relatively slow pressure relief rate. This not only affects the efficiency of the electric pressure cooker but can also affect the quality of the food inside. Utility Model Content

[0003] The utility model aims to provide an electric pressure cooker capable of rapid pressure relief, so as to solve the technical problem in the prior art that electric pressure cookers require intermittent venting to reduce pressure by opening a pressure relief valve, resulting in slow pressure relief.

[0004] The utility model provides an electric pressure cooker capable of rapid pressure relief, comprising a shell, a refrigerator, a refrigeration medium delivery pipeline, and a fan assembly. An outer pot is arranged in the shell, a first accommodating chamber is provided between the shell and the outer pot, the fan assembly is arranged in the first accommodating chamber, one end of the refrigeration medium delivery pipeline is connected to the output port of the refrigerator, a portion of the refrigeration medium delivery pipeline is placed in the first accommodating chamber, and is located at the air outlet of the fan assembly, and the air outlet of the fan assembly faces the outer pot.

[0005] As described above, the electric pressure cooker capable of rapid pressure relief is provided with a first through hole and a second through hole on the shell, and both ends of the refrigerant medium delivery pipeline respectively pass through the first through hole and the second through hole to be connected to the output port and the input port of the refrigerator, and the refrigerant medium delivery pipeline is divided into an outer section pipeline and an inner section pipeline with the first through hole and the second through hole as a dividing point, and the inner section pipeline is placed in the first accommodating chamber.

[0006] As described above, the electric pressure cooker capable of quickly releasing pressure has an outwardly recessed groove provided on the inner wall of the shell, the fan assembly is arranged on the bottom wall of the groove, the inner section of the pipe has a tortuous section, and the tortuous section is located at the air outlet of the fan assembly.

[0007] As described above, in the electric pressure cooker capable of rapid pressure relief, the bottom wall of the groove is provided with a first air inlet, and the first air inlet corresponds to the air inlet of the fan assembly.

[0008] As described above, the electric pressure cooker capable of rapid pressure relief has an inner pot inside the outer pot, a second accommodating cavity is provided between the outer pot and the inner pot, and a cold air inlet is provided on the outer pot, and the cold air inlet is used to supply the cold air in the first accommodating cavity to enter the second accommodating cavity.

[0009] In the electric pressure cooker capable of rapid pressure relief as described above, the cold air inlet is arranged corresponding to the air outlet of the fan assembly.

[0010] In the electric pressure cooker capable of rapid pressure relief as described above, a first hot air outlet is provided on the side wall of the outer pot, and the first hot air outlet is used for discharging the hot air in the second accommodating cavity.

[0011] As described above, the electric pressure cooker capable of rapid pressure relief is provided with a second hot air outlet on the side wall of the shell, the second hot air outlet is arranged corresponding to the first hot air outlet, and the second hot air outlet is used to discharge the hot air in the first accommodating cavity to the external environment.

[0012] In the electric pressure cooker capable of rapid pressure relief as described above, part of the refrigerant medium delivery pipeline is located at the air inlet of the fan assembly.

[0013] In the electric pressure cooker capable of rapid pressure relief as described above, the port at the other end of the refrigeration medium delivery pipe is arranged inside the shell, and the refrigeration medium delivery pipe is used to deliver cold air.

[0014] The implementation of the present invention will have the following beneficial effects:

[0015] In the present invention, the electric pressure cooker includes a shell, a refrigerator, a refrigerant delivery pipe, and a fan assembly. An outer pot is provided in the shell, a first accommodating chamber is provided between the shell and the outer pot, the fan assembly is provided in the first accommodating chamber, one end of the refrigerant delivery pipe is connected to the output port of the refrigerator, a portion of the refrigerant delivery pipe is placed in the first accommodating chamber, and is located at the air outlet of the fan assembly, with the air outlet of the fan assembly facing the outer pot. The refrigerator can prepare refrigerant during operation, and the refrigerant is transported through the first accommodating chamber through the refrigerant delivery pipe. The cold air around the refrigerant delivery pipe is then blown away by the fan assembly, so that the cold air can transfer heat with the hot air in the first accommodating chamber, thereby reducing the temperature inside the electric pressure cooker and achieving pressure reduction of the electric pressure cooker. The device can continuously provide cold air to the electric pressure cooker, and there is no need for intermittent operation during the pressure reduction process, which is conducive to accelerating the efficiency of pressure reduction and improving the efficiency of the use of the electric pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a structural schematic diagram of an electric pressure cooker capable of rapid pressure relief according to an exemplary embodiment;

[0018] Figure 2 is an exploded view of an electric pressure cooker capable of rapid pressure relief according to an exemplary embodiment;

[0019] Figure 3 is an exploded view from another perspective of an electric pressure cooker capable of rapid pressure relief according to an exemplary embodiment;

[0020] Figure 4 It is a top cross-sectional view of an electric pressure cooker capable of rapid pressure relief according to an exemplary embodiment.

[0021] Among them: 1. Shell; 11. First accommodating chamber; 12. First through hole; 13. Second through hole; 14. First air inlet; 15. Groove; 16. Second hot air outlet; 2. Refrigeration device; 21. Refrigeration machine; 22. Refrigeration medium delivery pipeline; 221. Tortuous section; 3. Fan assembly; 4. Outer pot; 41. Second accommodating chamber; 42. Cold air inlet; 43. First hot air outlet; 5. Inner pot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] It should be noted that when the inner pot of the electric pressure cooker is heated, the temperature rises, and the gas in the pot expands due to the heat, achieving high-pressure cooking. When the pressure needs to be reduced, the pot body can be cooled to achieve the pressure reduction effect.

[0028] See also Figures 1-4The present invention provides an electric pressure cooker capable of rapid pressure relief, comprising a housing 1, a refrigerator 21, a refrigerant delivery pipe 22, and a fan assembly 3. The housing 1 houses an outer pot 4, with a first accommodating chamber 11 defined between the housing 1 and the outer pot 4. The fan assembly 3 is disposed within the first accommodating chamber 11. One end of the refrigerant delivery pipe 22 is connected to the output port of the refrigerator 21. A portion of the refrigerant delivery pipe 22 is disposed within the first accommodating chamber 11 and located at the air outlet of the fan assembly 3, with the air outlet of the fan assembly 3 facing the outer pot 4. The refrigerator 21 and the refrigerant delivery pipe 22 together constitute a refrigeration device 2 for cooling the electric pressure cooker. Specifically, the refrigerator 21 is a compression refrigerator 21, which can prepare refrigerant, transport the refrigerant through the first accommodating chamber 11 through the refrigerant medium delivery pipe 22, and then blow the cold air around the refrigerant medium delivery pipe 22 through the fan assembly 3, so that the cold air can fully transfer heat with the hot air in the first accommodating chamber 11, reduce the temperature inside the electric pressure cooker, and then achieve pressure reduction of the electric pressure cooker. This device can continuously provide cold air to the electric pressure cooker, and there is no need for intermittent work during the pressure reduction process, which is conducive to accelerating the efficiency of pressure reduction and improving the use efficiency of the electric pressure cooker.

[0029] Furthermore, the housing 1 is provided with a first through hole 12 and a second through hole 13. The two ends of the refrigerant medium delivery pipe 22 pass through the first through hole 12 and the second through hole 13, respectively, and are connected to the output port and the input port of the refrigerator 21. The refrigerant medium delivery pipe 22 is divided into an outer pipe section and an inner pipe section with the first through hole 12 and the second through hole 13 as the dividing point. The inner pipe section is placed in the first accommodating chamber 11. It should be understood that the heat transfer between the refrigerant in the refrigerant medium delivery pipe 22 and the hot air in the first accommodating chamber 11 is indirect contact. The refrigerant delivery pipe 22 enters the first accommodating chamber 11 through the first through hole 12 and then exits through the second through hole 13. The refrigerant always circulates only within the refrigerant medium delivery pipe 22.

[0030] Furthermore, the inner wall of the housing 1 is provided with an outwardly recessed groove 15, and the fan assembly 3 is disposed on the bottom wall of the groove 15. The inner pipe section has a zigzag section 221, which is located at the air outlet of the fan assembly 3. The zigzag design of the refrigerant medium delivery pipe 22 allows the refrigerant medium delivery pipe 22 to be placed in the first accommodating chamber 11 for a longer length within a limited space, thereby increasing the contact area for heat transfer, improving heat exchange efficiency, and accelerating the pressure relief of the electric pressure cooker.

[0031] Furthermore, a first air inlet 14 is provided on the bottom wall of the groove 15, and the first air inlet 14 corresponds to the air inlet of the fan assembly 3, so that the fan assembly 3 can inhale air from the external environment to blow toward the refrigerant medium delivery pipe 22, so that the cold air around the refrigerant medium delivery pipe 22 can be dissipated to the surroundings, accelerating the cooling and achieving rapid pressure relief.

[0032] Furthermore, an inner pot 5 is disposed within the outer pot 4, with a second accommodating chamber 41 defined between the outer pot 4 and the inner pot 5. A first hot air outlet 43 is provided on the sidewall of the outer pot 4. The first hot air outlet 43 is used to discharge the hot air within the second accommodating chamber 41 to the exterior of the housing 1. Because the heat content of the inner pot 5 is the highest, the lid can only be opened after the pressure within the inner pot 5 drops to a certain value. Therefore, the provision of the first hot air outlet 43 on the outer pot 4 allows the hot air within the second accommodating chamber 41 between the outer pot 4 and the inner pot 5 to dissipate as quickly as possible, thereby accelerating the cooling rate of the inner pot 5.

[0033] Furthermore, a second hot air outlet 16 is provided on the side wall of the housing 1. The second hot air outlet 16 is provided correspondingly to the first hot air outlet 43. The second hot air outlet 16 is used to discharge the hot air from the first accommodating chamber 11 to the external environment. Because the second hot air outlet 16 is provided correspondingly to the first hot air outlet 43, the hot air discharged from the second accommodating chamber 41 can be discharged directly from the second hot air outlet 16 on the housing 1 to the external environment, preventing a large amount of hot air from accumulating in the first accommodating chamber 11 and affecting the cooling rate of the electric pressure cooker, thereby affecting the pressure relief rate of the electric pressure cooker.

[0034] Specifically, the refrigeration medium delivery pipe 22 is a sealed pipe, which prevents the refrigerant inside the refrigeration medium delivery pipe 22 from leaking into the interior of the electric pressure cooker, making it difficult to clean.

[0035] Furthermore, part of the refrigerant medium delivery pipeline 22 is located at the air inlet of the fan assembly 3. This makes the air entering the fan assembly 3 also cold, and the air leaving the fan assembly 3 is also cold, which can further improve the cooling efficiency.

[0036] Furthermore, a liquid storage tank for storing refrigerant is provided in the refrigerator 21 , and both ends of the refrigerant medium delivery pipeline 22 are connected to the liquid storage tank.

[0037] In another specific embodiment, the outer pot 4 is provided with a cold air inlet 42, which is used to allow the cold air in the first accommodating chamber 11 to enter the second accommodating chamber 41. The fan assembly 3 blows the cold air around the refrigerant medium delivery pipe 22 to the surrounding area, allowing the cold air to fully transfer heat with the hot air in the first accommodating chamber 11. Part of the cold air can enter the second accommodating chamber 41 between the outer pot 4 and the inner pot 5 through the cold air inlet 42, so that the temperature of the inner pot 5 can be accelerated to drop, thereby accelerating the pressure drop inside the inner pot 5, achieving rapid pressure relief, and improving the efficiency of the electric pressure cooker.

[0038] Furthermore, the cold air inlet 42 is provided correspondingly to the air outlet of the fan assembly 3. The fan assembly 3 blows the cold air around the refrigerant medium delivery pipe 22 to the surrounding area. Since the cold air inlet 42 is provided correspondingly to the fan assembly 3, more cold air can enter the second accommodating chamber 41 between the outer pot 4 and the inner pot 5 through the cold air inlet 42, so that the temperature of the inner pot 5 can be reduced more quickly, thereby quickly reducing the pressure inside the inner pot 5, achieving faster pressure relief, and improving the efficiency of the electric pressure cooker.

[0039] Specifically, the cold air inlet 42 is arranged on the side of the outer pot 4 close to the fan assembly 3, and the first hot air outlet 43 is arranged on the side of the outer pot 4 away from the fan assembly 3, forming an air flow channel with cold air entering on one side and hot air discharged on the other side.

[0040] In a specific embodiment, the refrigerator 21 uses a refrigeration compressor with a power of 100W and a model of R290. The operating voltage of the compressor is 220V, the operating frequency is 50Hz, and the refrigeration capacity is 1000W, which is sufficient to meet the needs of the electric pressure cooker.

[0041] In a specific embodiment, a pressure control module is provided in the inner pot 5, and the module can automatically adjust the working state of the refrigeration compressor according to the pressure change in the pot.

[0042] In a specific embodiment, a pressure and temperature display module is provided on the control panel of the electric pressure cooker, which can display the real-time pressure and temperature in the cooker, so that the user can understand the pressure and temperature conditions in the cooker in real time.

[0043] In another embodiment, the other end of the refrigerant delivery pipe 22 is provided inside the housing 1, and the refrigerant delivery pipe 22 is used to deliver cold air. The other end of the refrigerant delivery pipe 22 can be located in the first accommodating chamber 11 or the second accommodating chamber 41. By directly releasing cold air into the electric pressure cooker, the electric pressure cooker can be cooled quickly.

[0044] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model.

Claims

1. An electric pressure cooker capable of rapid pressure relief, characterized in that: The invention comprises a shell (1), a refrigerator (21), a refrigeration medium delivery pipeline (22) and a fan assembly (3); an outer pot (4) is provided in the shell (1); a first accommodating chamber (11) is provided between the shell (1) and the outer pot (4); the fan assembly (3) is provided in the first accommodating chamber (11); one end of the refrigeration medium delivery pipeline (22) is connected to the output port of the refrigerator (21); a portion of the refrigeration medium delivery pipeline (22) is placed in the first accommodating chamber (11) and is located at the air outlet of the fan assembly (3); and the air outlet of the fan assembly (3) faces the outer pot (4).

2. The electric pressure cooker capable of rapid pressure relief according to claim 1, characterized in that: The shell (1) is provided with a first through hole (12) and a second through hole (13); the two ends of the refrigeration medium delivery pipeline (22) pass through the first through hole (12) and the second through hole (13) and are connected to the output port and the input port of the refrigerator (21); the refrigeration medium delivery pipeline (22) is divided into an outer section pipeline and an inner section pipeline with the first through hole (12) and the second through hole (13) as a dividing point; the inner section pipeline is placed in the first accommodating chamber (11).

3. The electric pressure cooker capable of rapid pressure relief according to claim 2, characterized in that: An outwardly recessed groove (15) is provided on the inner wall of the housing (1); the fan assembly (3) is arranged on the bottom wall of the groove (15); the inner section of the pipe has a zigzag section (221); and the zigzag section (221) is located at the air outlet of the fan assembly (3).

4. The electric pressure cooker capable of rapid pressure relief according to claim 3, characterized in that: A first air inlet (14) is provided on the bottom wall of the groove (15), and the first air inlet (14) corresponds to the air inlet of the fan assembly (3).

5. The electric pressure cooker capable of rapid pressure relief according to claim 4, characterized in that: An inner pot (5) is provided in the outer pot (4), a second accommodating cavity (41) is provided between the outer pot (4) and the inner pot (5), a cold air inlet (42) is provided on the outer pot (4), and the cold air inlet (42) is used to allow cold air in the first accommodating cavity (11) to enter the second accommodating cavity (41).

6. The electric pressure cooker capable of rapid pressure relief according to claim 5, characterized in that: The cold air inlet (42) is arranged corresponding to the air outlet of the fan assembly (3).

7. The electric pressure cooker capable of rapid pressure relief according to claim 6, characterized in that: A first hot air outlet (43) is provided on the side wall of the outer pot (4), and the first hot air outlet (43) is used for discharging hot air in the second accommodating cavity (41).

8. The electric pressure cooker capable of rapid pressure relief according to claim 7, characterized in that: A second hot air outlet (16) is provided on the side wall of the shell (1), and the second hot air outlet (16) is arranged corresponding to the first hot air outlet (43). The second hot air outlet (16) is used to discharge the hot air in the first accommodating cavity (11) to the external environment.

9. The electric pressure cooker capable of rapid pressure relief according to claim 4, characterized in that: Part of the refrigeration medium delivery pipeline (22) is located at the air inlet of the fan assembly (3).

10. The electric pressure cooker capable of rapid pressure relief according to claim 1, characterized in that: The port at the other end of the refrigeration medium delivery pipe (22) is arranged inside the shell (1), and the refrigeration medium delivery pipe (22) is used to deliver cold air.

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