Multifunctional instant heating type electric pressure cooker

Abstract

The multifunctional instant electric pressure cooker comprises a cooker body and a cooker cover, a heating disc and a heated inner container arranged on the heating disc are arranged in the cooker body, the cooker cover comprises an outer cover and an inner cover, the inner cover is assembled and connected to the lower portion of the outer cover, the inner cover is matched with an opening of the inner container, and a cooking cavity is defined between the inner cover and the opening of the inner container. A water outlet is formed in the outer cover, a water supply device communicated with the water outlet is arranged on the cooker body or the cooker cover, a water receiving groove is formed in the top face of the inner cover in a concave mode, a water outlet nozzle which abuts against or abuts against the inner wall face of the inner container is arranged on the edge of the inner cover, and the water outlet nozzle is communicated with the water receiving groove. According to the electric pressure cooker, steam is generated in an instant heating mode, high-pressure and high-temperature steam can be rapidly generated, and the heating speed of the electric pressure cooker can be increased.

Description

Technical Field

[0001] This invention relates to the field of electric pressure cookers, specifically a multifunctional instant electric pressure cooker. Background Technology

[0002] The current electric pressure cooker structure is shown in Chinese patent document, patent number: CN201922217827.9, which describes a structurally reliable pressure cooker. It mainly includes a pot body and a lid. The pot body includes an outer pot, inside which is an inner pot. The outer pot includes a bottom wall and side walls. A heating plate is located between the bottom wall of the outer pot and the inner pot, and a heating element is fixed inside the heating plate. The mouth of the outer pot has a toothed opening, and the lid locks into the toothed opening. However, this prior art has the following drawbacks: First, when cooking, you need to pour water into the inner pot, lock the lid on the pot body, and then heat it through the heating plate to make the water in the inner pot heat up and gradually form steam. This process is slow and the steam generation efficiency is low. Moreover, the low temperature and low pressure steam formed at the beginning has a high water content, which can easily affect the taste of the food after it is cooked.

[0003] Second, after cooking is complete, when opening the lid to remove food, the high-temperature, high-pressure gas inside the pot must be manually released by turning the exhaust valve or allowed to cool naturally. The lid can only be opened and the food enjoyed after the pressure has been released. However, when cooking liquid foods, the liquid food may escape with the gas during the pressure release process, potentially causing injury to the user. Natural cooling, on the other hand, takes a long time, affecting the user experience. Therefore, the applicant has improved and refined the structure to provide a new solution that addresses the above problems, offering consumers a viable option. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional instant electric pressure cooker that is simple and reasonable in structure, easy to install, and stable.

[0005] A multifunctional instant electric pressure cooker includes a pot body and a lid. The pot body has a heating plate and an inner pot placed on the heating plate for heating. The lid includes an outer lid and an inner lid assembly. The inner lid assembly is assembled and connected below the outer lid. The inner lid assembly cooperates with the opening of the inner pot and defines a cooking cavity between the two. The top surface of the inner lid assembly is recessed with a cooling groove. The outer lid has a first water outlet and a second water outlet that respectively connect to the cooling groove and the cooking cavity. The pot body or lid is equipped with a water supply device. The water outlet of the water supply device is connected to an electrically controlled three-way valve. One water outlet of the electrically controlled three-way valve is connected to the first water outlet, and the other water outlet is connected to the second water outlet. The water supply device is controlled by the electrically controlled three-way valve to selectively connect to either the cooling groove or the cooking cavity.

[0006] The objective of this invention can also be achieved by the following technical measures: As a more specific embodiment, the inner cover assembly includes an inner cover that is sealed to the opening of the inner pot and defines the cooking cavity; the top surface of the inner cover is recessed with a water receiving groove, the second water outlet is connected to the water receiving groove, and the inner cover is provided with a water outlet near its edge that abuts or abuts against the inner wall of the inner pot, the water outlet being connected to the water receiving groove.

[0007] As a further embodiment, the inner cover assembly also includes a cooling plate cover, which is movably assembled between the outer cover and the inner cover and has a cooling groove recessed in its center. A water discharge gap is provided between the edge of the cooling plate cover and the outer cover. An annular water guide groove is provided on the top surface of the pot body, and the water guide groove is located below the water discharge gap.

[0008] As a further embodiment, the inner cover is detachably connected to the outer cover via a central assembly column. The assembly column has a water inlet channel and a second water outlet at its bottom that connects to the water inlet channel. The assembly column is connected to a water inlet interface that communicates with the water inlet channel, and another water outlet of the water supply device is connected to the water inlet interface.

[0009] As a further embodiment, the top of the assembly column extends above the outer cover, the water inlet channel is axially opened inside the assembly column and simultaneously serves as a pressure relief channel, a pressure relief weight is movably connected to the top of the assembly column, the pressure relief weight can open or block the upper port of the pressure relief channel, and the water inlet is connected to the middle position of the assembly column.

[0010] As a further embodiment, a hinge seat is provided on one side of the pot body, and the outer cover is hinged to the top of the pot body by flipping through the hinge seat; a water receiving box is detachably connected inside the pot body, and a drain hole is provided on the side of the water guide channel facing the hinge seat, and a drain channel connecting the water guide channel and the water receiving box is provided below the drain hole.

[0011] As a further embodiment, the water supply device includes a detachable water storage tank and a water pump. The inlet port of the water pump is connected to the drain port of the water storage tank, and the outlet port of the water pump is connected to an electrically controlled three-way valve via a water guide hose.

[0012] As a further solution, the water outlet is integrally connected to the edge of the inner cover; Alternatively, the water outlet can be detachably connected to the inner cover, wherein the water outlet includes a water outlet seat body connected to the inner cover and a water outlet tube body that extends downward at an incline, with the outer end of the water outlet tube body abutting or abutting against the inner wall surface of the inner liner.

[0013] As a further embodiment, a manual locking mechanism is also provided inside the outer cover. The manual locking mechanism is linked with the pressure relief hammer, and the cooling plate cover is connected to the manual locking mechanism. The inner wall of the cooling plate cover edge is provided with cover teeth, and the top surface of the pot body is provided with pot teeth. The manual locking mechanism controls the rotation of the cooling plate cover so that the cover teeth and pot teeth are screwed together.

[0014] As a further solution, a sensor is provided on the rear wall of the water receiving tank, and a position sensor connected in series with the water supply circuit is provided on the pot body. After the water receiving tank is installed in place, the sensor and the position sensor cooperate to connect the water supply circuit.

[0015] The beneficial effects of this invention are as follows: The present invention relates to a multifunctional instant electric pressure cooker. This electric pressure cooker has two water outlets through an electrically controlled three-way valve, which simplifies the internal structure of the lid, reduces production costs, and changes the water supply direction according to the different functional needs of the electric pressure cooker, so as to realize the function of cooling and quick lid opening or instant steam generation.

[0016] This electric pressure cooker generates steam by heating first and then dispensing water. During use, the heating plate heats the inner pot to a high temperature, and then the water delivered to the water tank is discharged through the water outlet, allowing the water to flow down the inner wall of the inner pot. Upon contact with the hot bottom of the inner pot, the water immediately forms high-temperature and high-pressure steam, thereby increasing the heating speed of the electric pressure cooker. Furthermore, the inner wall of the liner, which has a certain temperature, can preheat the water, which helps to improve the efficiency of instant evaporation. In addition, the water flows downward along the inner wall of the liner, avoiding the food in the middle and preventing water droplets from dripping onto the food and affecting its taste.

[0017] After cooking is complete, this electric pressure cooker activates the water supply device, sending cold water to the cooling tray of the cooling plate lid. This absorbs the heat from the cooling plate lid, and the low-temperature cooling plate lid directly exchanges heat with the high-temperature gas inside the pot, carrying away the heat and reducing the pressure inside the pot, thus allowing the lid to be opened quickly. Attached Figure Description

[0018] Figure 1 This is a schematic cross-sectional view of one embodiment of the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the exploded structure of the pot lid in this invention.

[0020] Figure 3 This is a schematic diagram of the exploded structure of the pot lid from another angle in this invention.

[0021] Figure 4 This is a schematic cross-sectional view of one embodiment of the present invention. Figure 2 .

[0022] Figure 5 for Figure 4 Enlarged view of the structure at point A and schematic diagram of the water outlet.

[0023] Figure 6 This is a schematic diagram of the pot lid opening structure in this invention.

[0024] Figure 7 This is a schematic diagram of a partially decomposed structure in this invention.

[0025] Figure 8 This is a schematic diagram of the manual locking mechanism in this invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1 to 8 As shown, a multifunctional instant electric pressure cooker includes a pot body 1 and a lid 2. The pot body 1 has a heating plate 3 and an inner pot 4 placed on the heating plate 3 for heating. The lid 2 includes an outer lid 5 and an inner lid assembly. The inner lid assembly is assembled and connected below the outer lid 5. The inner lid assembly fits into the opening of the inner pot 4 and defines a cooking cavity 401 between the two. The top surface of the inner lid assembly is recessed with a cooling groove 701. The outer lid 5 has a first water outlet 501 and a second water outlet 502 that respectively connect the cooling groove 701 and the cooking cavity 401. The pot body 1 or the lid 2 is provided with a water supply device 8. The water outlet of the water supply device 8 is connected to an electrically controlled three-way valve 9. One water outlet 91 of the electrically controlled three-way valve 9 is connected to the first water outlet 501, and the other water outlet 92 is connected to the second water outlet 502. The water supply device 8 is controlled by the electrically controlled three-way valve 9 to selectively connect to either the cooling groove 701 or the cooking cavity 401.

[0028] This electric pressure cooker features a 9-point electrically controlled three-way valve with two water outlets, which simplifies the internal structure of the lid and reduces production costs. Depending on the different functions of the electric pressure cooker, the water supply direction can be changed to achieve either a cooling and quick lid opening function or an instant steam generation function.

[0029] The inner cover assembly includes an inner cover 6, which is sealed to the opening of the inner pot 4 and defines the cooking cavity 401; the top surface of the inner cover 6 is recessed with a water receiving groove 601, the second water outlet 502 is connected to the water receiving groove 601, and the inner cover 6 is provided with a water outlet 61 near the edge that abuts or supports the inner wall of the inner pot 4, and the water outlet 61 is connected to the water receiving groove 601; This electric pressure cooker generates steam by heating first and then discharging water. During use, the heating element 3 heats the inner pot 4 to a high temperature. Then, the water delivered to the water tank 601 is discharged through the water outlet 61, allowing the water to flow downwards along the inner wall of the inner pot 4. Upon contact with the hot bottom of the inner pot 4, it immediately forms high-temperature and high-pressure steam, thereby increasing the heating speed of the electric pressure cooker. Furthermore, the inner liner 4, with its sidewalls at a certain temperature, can preheat the water, which helps improve the efficiency of instantaneous evaporation. In addition, the water flows downward along the inner wall of the inner liner 4, avoiding the food in the middle and preventing water droplets from dripping onto the food and affecting its taste.

[0030] The inner cover assembly also includes a cooling plate cover 7, which is movably assembled between the outer cover 5 and the inner cover 6, and has a cooling groove 701 recessed in its center. A water discharge gap 702 is provided between the cover edge of the cooling plate cover 7 and the outer cover 5. An annular water guide groove 101 is provided on the top surface of the pot body 1, and the water guide groove 101 is located below the water discharge gap 702.

[0031] After cooking is complete, this electric pressure cooker activates the water supply device 8 to deliver cold water to the cooling tray 701 of the cooling plate cover 7. The cold water absorbs the heat from the cooling plate cover 701, and the low-temperature cooling plate cover 7 directly exchanges heat with the high-temperature gas inside the pot, carrying away the heat and reducing the pressure inside the pot, thus allowing the lid to be opened quickly.

[0032] After the cooling tank 701 overflows with water, or when the lid is opened quickly, the wastewater that has absorbed heat (the cold water may come into contact with food and cause contamination while absorbing heat) flows out through the discharge gap 702 and into the water guide trough 101 for collection, preventing the wastewater from overflowing the outer wall of the electric pressure cooker and causing cleaning difficulties.

[0033] The inner cover 6 is detachably connected to the outer cover 5 via a central mounting column 10. The mounting column 10 has a water inlet channel 1001 and a second water outlet 502 at its bottom that communicates with the water inlet channel 1001. The mounting column 10 is connected to a water inlet interface 11 that communicates with the water inlet channel 1001. Another water outlet 92 of the water supply device 8 is connected to the water inlet interface 11. The inner cover 6 is detachably connected to the mounting column 10, making it easy to remove the inner cover 6 after cooking and to clean the upper wall of the inner cover and the lower wall of the cooling plate cover 7.

[0034] The top of the assembly column 10 extends above the outer cover 5. The water inlet channel 1001 is axially opened inside the assembly column 10 and also serves as a pressure relief channel. A pressure relief weight 12 is movably connected to the top of the assembly column 10. The pressure relief weight 12 can open or block the upper port of the pressure relief channel. The water inlet 11 is connected to the middle position of the assembly column 10.

[0035] The aforementioned assembly column 10 serves multiple functions, including connection support, water inlet, and pressure relief. During normal use, the pressure relief weight 12 blocks the upper port of the pressure relief channel. After the water inlet interface 11 delivers water to the water inlet channel 1001, it flows into the water receiving tank 601 through the second water outlet 502 and finally drains into the bottom of the inner liner 4 through the water outlet 61. When the user does not use the cooling plate cover 7 to quickly open the lid, the user pulls up the pressure relief weight 12 to allow outside air to connect with the cooking cavity 401 through the pressure relief channel and the second water outlet 502, allowing the high-temperature and high-pressure steam to be discharged and the pressure to return to normal.

[0036] In addition, the inner cover 6 is fitted with a fishtail-shaped sealing ring 17, which abuts against the edge of the inner liner 4 and the edge of the cooling plate cover 7.

[0037] A hinge seat 13 is provided on one side of the pot body 1, and the outer cover 5 is hinged to the top of the pot body 1 by flipping through the hinge seat 13; a water receiving box 14 is detachably connected inside the pot body 1, and a drain hole 102 is provided on the side of the water guide groove 101 facing the hinge seat 13, and a drain channel 103 connecting the water guide groove 101 and the water receiving box 14 is provided below the drain hole 102. When the lid 2 is opened, the wastewater in the cooling tank 701 or the condensate on the inner lid 6 flows in the same direction; the water guide trough 101 is provided with a drain hole 102 and a drain channel 103 in the corresponding direction, so that the wastewater and condensate flow into the water collection box 14 for collection. Compared with the traditional electric pressure cooker, since the water stored in the electric pressure cooker is used for both cooling and heating to generate steam, it cannot be recycled and needs to be collected and processed by the water collection box 14.

[0038] The water supply device 8 includes a detachable water storage tank 81 and a water pump 82. The water storage tank 81 and the water pump 82 are installed inside the pot body 1. The inlet port of the water pump 82 is connected to the drain port of the water storage tank 81, and the outlet port of the water pump 82 is connected to a water guide hose 83. The water guide hose 83 extends from the hinge seat 13 into the inner cover 6 and is connected to the electrically controlled three-way valve 9. The detachable water storage tank 81 makes it convenient for users to add water. When in use, the water pump 82 draws clean water from the water storage tank 81 and delivers it to the assembly column 10. Installing the water storage tank 81 and the water pump 82 inside the pot body 1 can reduce the weight of the pot lid 2. During the opening and closing of the pot lid 2, the water circuit is kept open, reducing the occurrence of water leakage.

[0039] In addition, a water outlet connector 20 is connected to the bottom of the outer cover 5, the water outlet connector 20 forms a first water outlet 501, and a water outlet 91 of the electrically controlled three-way valve 9 is connected to the water outlet connector 20.

[0040] In this embodiment, the water outlet 61 is detachably connected to the inner cover 6. The water outlet 61 includes a water outlet seat 611 connected to the inner cover 6 and a water outlet tube 612 that extends downward at an incline. The outer end of the water outlet tube 612 abuts or rests against the inner wall of the inner liner 4. The water outlet 61 can be made of elastic materials such as silicone to prevent the water outlet 61 from scratching the inner liner 4 when the cover is closed.

[0041] In other embodiments, the spout 61 may also be integrally connected to the edge of the inner cover 6.

[0042] The outer cover 5 is also equipped with a manual locking mechanism, which is linked with the pressure relief hammer 12. The cooling plate cover 7 is connected to the manual locking mechanism. The inner wall of the cover edge of the cooling plate cover 7 is provided with cover teeth 71, and the top surface of the pot body 1 is provided with pot teeth 104. The cooling plate cover 7 is rotated by the manual locking mechanism, so that the cover teeth 71 and the pot teeth 104 are screwed together. This can lock the pot cover 2 and prevent it from being opened by high pressure during use.

[0043] The manual locking mechanism mainly includes: Turntable 191 is rotatably connected to the outer cover 5 around the mounting column 10. The bottom surface of the turntable 191 is fixedly connected to the cooling plate cover 7. The edge of the turntable 191 extends with a push post 192. Rotary handle 193, which is rotatably connected to the top surface of outer cover 5; A drive arm 194 is placed inside the outer cover 5. Its inner end is fixedly connected to the rotating handle 193, and its outer end is provided with a limiting port 195. The limiting port 195 is fastened to the outside of the lever 192. The outer cover 5 is provided with a locking limiting surface 503 and an unlocking limiting surface 504. The drive swing arm 194 swings between the locking limiting surface 503 and the unlocking limiting surface 504, and can control the rotation angle of the rotating handle 193. When locking or unlocking, the drive swing arm 194 moves the lever 192 to swing, thereby causing the turntable 191 to drive the cooling plate cover 7 to rotate.

[0044] Furthermore, the manual locking mechanism also includes a linkage 177 that moves up and down. When the drive arm 194 swings from the locking limit surface 503 to the unlocking limit surface 504, the drive arm 194 pushes the linkage 177 upward and pushes the pressure relief hammer 12 to open the pressure relief channel.

[0045] In addition, there is a lid locking sensor 196, which is located on one side of the drive swing arm 194. After the lid is locked, the drive swing arm 194 triggers the lid locking sensor 196, so that the electric pressure cooker is connected to the working circuit.

[0046] An anti-rotation float valve 18 is provided between the cooling plate cover 7 and the outer cover 5. When the pressure in the cooking cavity 401 is greater than 3 kPa, the anti-rotation float valve 18 locks the push rod plate to prevent the lid from being turned open, which serves as a safety measure. This is an essential safety measure for electric pressure cookers and will not be described in detail here.

[0047] The rear wall of the water receiving tank 601 is provided with a sensing element 15, and the pot body 1 is provided with a positioning sensor 16 connected in series with the water supply circuit. After the water receiving tank 601 is installed in place, the sensing element 15 and the positioning sensor 16 cooperate to sense and connect the water supply circuit.

[0048] In this embodiment, the sensing element 15 is a ferromagnetic block, and the positioning sensor 16 is a magnetic switch. The magnetic switch and the ferromagnetic block work together to ensure that the water supply circuit or other working circuits can only be connected after the water tank 601 is installed in place.

[0049] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. A multifunctional instant electric pressure cooker, comprising a pot body (1) and a lid (2), wherein the pot body (1) is provided with a heating plate (3) and an inner pot (4) placed on the heating plate (3) and heated, and the lid (2) comprises an outer lid (5) and an inner lid assembly, wherein the inner lid assembly is assembled and connected below the outer lid (5), and the inner lid assembly cooperates with the opening of the inner pot (4) and defines a cooking cavity (401) between the two, characterized in that... The inner cover assembly has a cooling groove (701) recessed on its top surface. The outer cover (5) has a first water outlet (501) and a second water outlet (502) that are respectively connected to the cooling groove (701) and the cooking cavity (401). The pot body (1) or pot cover (2) is provided with a water supply device (8). The water outlet of the water supply device (8) is connected to an electric three-way valve (9). One water outlet (91) of the electric three-way valve (9) is connected to the first water outlet (501), and the other water outlet (92) is connected to the second water outlet (502). The water supply device (8) is controlled by the electric three-way valve (9) to connect to either the cooling groove (701) or the cooking cavity (401).

2. A multifunctional instant electric pressure cooker according to claim 1, characterized in that: The inner cover assembly includes an inner cover (6), which is sealed to the opening of the inner pot (4) and defines the cooking cavity (401); the top surface of the inner cover (6) is recessed with a water receiving groove (601), the second water outlet (502) is connected to the water receiving groove (601), and the inner cover (6) is provided with a water outlet (61) near the edge that abuts or supports the inner wall of the inner pot (4), and the water outlet (61) is connected to the water receiving groove (601).

3. A multifunctional instant electric pressure cooker according to claim 2, characterized in that: The inner cover assembly also includes a cooling plate cover (7), which is movably assembled between the outer cover (5) and the inner cover (6) and has a cooling groove (701) recessed in its center. A water discharge gap (702) is provided between the cover edge of the cooling plate cover (7) and the outer cover (5). An annular water guide groove (101) is provided on the top surface of the pot body (1), and the water guide groove (101) is located below the water discharge gap (702).

4. A multifunctional instant electric pressure cooker according to claim 2, characterized in that: The inner cover (6) is detachably connected to the outer cover (5) via the central assembly column (10). The assembly column (10) has a water inlet channel (1001) and a second water outlet (502) connected to the water inlet channel (1001) at its bottom. The assembly column (10) is connected to a water inlet interface (11) that is connected to the water inlet channel (1001). The other water outlet (92) of the water supply device (8) is connected to the water inlet interface (11).

5. A multifunctional instant electric pressure cooker according to claim 4, characterized in that: The top of the assembly column (10) extends above the outer cover (5). The water inlet channel (1001) is axially opened inside the assembly column (10) and also serves as a pressure relief channel. A pressure relief weight (12) is movably connected to the top of the assembly column (10). The pressure relief weight (12) can open or block the upper port of the pressure relief channel. The water inlet (11) is connected to the middle position of the assembly column (10).

6. A multifunctional instant electric pressure cooker according to claim 3, characterized in that: A hinge seat (13) is provided on one side of the pot body (1), and the outer cover (5) is hinged to the top of the pot body (1) by the hinge seat (13); a water receiving box (14) is detachably connected inside the pot body (1), and a drain hole (102) is provided on the side of the water guide groove (101) facing the hinge seat (13), and a drain channel (103) connecting the water guide groove (101) and the water receiving box (14) is provided below the drain hole (102).

7. A multifunctional instant electric pressure cooker according to claim 1, characterized in that: The water supply device (8) includes a detachable water storage tank (81) and a water pump (82). The water inlet of the water pump (82) is connected to the drain outlet of the water storage tank (81), and the water outlet of the water pump (82) is connected to an electrically controlled three-way valve (9) through a water guide hose (83).

8. A multifunctional instant electric pressure cooker according to claim 2, characterized in that: The water outlet (61) is integrally connected to the edge of the inner cover (6); Alternatively, the water outlet (61) can be detachably connected to the inner cover (6), wherein the water outlet (61) includes a water outlet seat (611) connected to the inner cover (6) and a water outlet tube (612) extending downwardly at an incline, with the outer end of the water outlet tube (612) abutting or abutting against the inner wall of the inner liner (4).

9. A multifunctional instant electric pressure cooker according to claim 3, characterized in that: The outer cover (5) is also provided with a manual locking mechanism. The manual locking mechanism is linked with the pressure relief hammer (12). The cooling plate cover (7) is connected to the manual locking mechanism. The inner wall of the cover edge of the cooling plate cover (7) is provided with cover teeth (71). The top surface of the pot body (1) is provided with pot teeth (104). The cooling plate cover (7) is rotated by the manual locking mechanism so that the cover teeth (71) and pot teeth (104) are connected by screwing.

10. A multifunctional instant electric pressure cooker according to claim 6, characterized in that: The rear wall of the water receiving tank (601) is provided with a sensing element (15), and the pot body (1) is provided with a position sensor (16) connected in series with the water supply circuit. After the water receiving tank (601) is installed in place, the sensing element (15) and the position sensor (16) cooperate to sense and connect the water supply circuit.

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