Pressure regulating structure of cooking apparatus, cooking apparatus and operating method thereof

Abstract

The application discloses a pressure adjusting structure of a cooking device, the cooking device and an operation method thereof. The pressure adjusting structure of the cooking device comprises a pressure regulating valve body, the pressure regulating valve body comprises a pressure regulating valve shell, a first cavity is arranged in the pressure regulating valve shell, an air inlet and an air outlet which are communicated with the first cavity are further arranged on the pressure regulating valve body, the pressure regulating valve body is connected to a first steam exhaust pipeline of a cooking liner of the cooking device through the air inlet and the air outlet; a pressure regulating valve liner is arranged in the first cavity and a gap exists between the pressure regulating valve liner and an inner wall of the first cavity, a second cavity is arranged in the pressure regulating valve liner, the pressure regulating valve liner can move in the first cavity in a vertical direction to open or close the air inlet; a liquid inlet adjusting structure is connected with the pressure regulating valve liner and is used for adjusting the weight of liquid entering and flowing out of the second cavity, so that the weight of the liquid in the second cavity is adjusted, and then the pressure of the pressure regulating valve liner pressing the air inlet is adjustable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a pressure adjusting structure of a cooking device, the cooking device and an operation method thereof. BACKGROUND

[0002] Some of the current market steaming and baking kitchen appliances have pressure steaming function, which generally controls the pressure through a heavy hammer structure or detects the steam pressure in the inner container by using a pressure sensor, and when the pressure in the inner container is too large, the steam is released by opening a solenoid valve to reduce the pressure in the inner container.

[0003] The pressure steaming function has obvious improvement in cooking time and cooking effect compared with the ordinary steaming mode, but since the weight of the pressure relief hammer is determined at the design time, the user cannot independently set the steam pressure in the inner container for different dishes and food materials.

[0004] Therefore, there is an urgent need for a pressure adjusting structure of a cooking device to solve the above problems. SUMMARY

[0005] The present application aims to at least solve one of the problems existing in the prior art, and for this purpose, the present application provides a pressure adjusting structure of a cooking device, which can adjust the steam pressure in the cooking inner container.

[0006] The above-mentioned purpose is achieved by the following technical solutions:

[0007] A pressure adjusting structure of a cooking device, comprising a pressure regulating valve body, the pressure regulating valve body comprising:

[0008] a pressure regulating valve shell, a first cavity is arranged in the pressure regulating valve shell, a gas inlet and a gas outlet are further arranged on the pressure regulating valve body and communicate with the first cavity, and the pressure regulating valve body is connected to a first steam discharge pipeline of a cooking inner container of a cooking device through the gas inlet and the gas outlet;

[0009] a pressure regulating valve inner container, which is arranged in the first cavity and has a gap between the inner wall of the first cavity, a second cavity is arranged in the pressure regulating valve inner container, and the pressure regulating valve inner container can move in the first cavity in a vertical direction to open or close the gas inlet;

[0010] a liquid inlet adjusting structure connected with the pressure regulating valve inner container, for adjusting the weight of the liquid entering and flowing out of the second cavity.

[0011] Optionally, the liquid inlet adjusting structure comprises:

[0012] a liquid inlet pump, which communicates with the second cavity and is used for conveying liquid into the second cavity;

[0013] A liquid outlet pump is in communication with the second cavity and used to pump out the liquid in the second cavity.

[0014] Optionally, the liquid inlet adjusting structure further comprises a weight sensor, which is located on the lower side of the pressure regulating valve inner container and used to detect the weight of the liquid in the second cavity, and the weight sensor is capable of opening or closing the air inlet when the pressure regulating valve inner container moves in the vertical direction in the first cavity.

[0015] Optionally, the pressure regulating valve inner container is further provided with a liquid inlet and a liquid outlet, both of which are in communication with the second cavity, and the liquid outlet is connected with the liquid outlet pump.

[0016] Optionally, a control unit is further included, and the weight sensor, the liquid inlet pump and the liquid outlet pump are all in communication connection with the control unit.

[0017] Another aspect of the present application provides a cooking device, which comprises a cooking inner container, a first steam discharge pipeline connected with the cooking inner container, and the above-mentioned pressure regulating structure.

[0018] Optionally, a water tank is further included, and the liquid inlet adjusting structure is connected with the water tank.

[0019] Optionally, a steam generator is further included, and the steam generator is installed in the cooking inner container.

[0020] Optionally, an air duct structure is further included, and the first steam discharge pipeline is connected with the air duct structure so as to discharge the steam in the first steam discharge pipeline via the air duct structure.

[0021] Optionally, a second steam discharge pipeline and a pressure relief valve arranged on the second steam discharge pipeline are further included, one end of the second steam discharge pipeline is connected with the cooking inner container, and the other end is connected with the air duct structure, during the cooking process, the pressure relief valve remains in the closed state, and after the cooking is finished, the pressure relief valve is opened so as to discharge all the steam in the cooking inner container.

[0022] Still another aspect of the present application provides a running method of the above-mentioned cooking device, which comprises the following steps:

[0023] S1: obtaining the cooking pressure set by a user;

[0024] S2: the control unit of the cooking device calculates the corresponding weight G1 of the liquid in the second cavity according to the cooking pressure set by the user;

[0025] S3: determining whether the current weight G2 of the liquid in the second cavity is equal to G1, if yes, entering S4, and if no, entering S5;

[0026] S4: the steam generator of the cooking device operates to perform a cooking operation;

[0027] S5: determining whether G2 < G1, if yes, the liquid inlet adjusting structure adjusts more liquid into the second cavity until G2 = G1, and then entering S4;

[0028] S6: determining whether G2 > G1, if yes, the liquid inlet adjusting structure discharges the liquid in the second cavity until G2 = G1, and then entering S4.

[0029] Compared with the prior art, the present application at least has the following beneficial effects:

[0030] The pressure adjusting structure of the cooking device provided by the present application adjusts the weight of the liquid in the second cavity through the liquid inlet adjusting structure, so that the pressure of the air inlet pressed by the pressure regulating valve inner container is adjustable, thereby realizing the adjustment of the steam pressure in the cooking inner container. Specifically, when it is needed to increase the steam pressure in the cooking inner container, the weight of the liquid in the second cavity is adjusted to be larger, so that the pressure of the air inlet pressed by the pressure regulating valve inner container is larger, and the steam pressure in the cooking inner container needs to be higher to open the pressure regulating valve inner container, so that the air inlet is opened, the steam in the cooking inner container can enter the first cavity, and then flows out through the air outlet until the steam pressure in the cooking inner container falls to the preset value. When it is needed to reduce the steam pressure in the cooking inner container, the weight of the liquid in the second cavity is adjusted to be smaller, so that the pressure of the air inlet pressed by the pressure regulating valve inner container is smaller, and the steam pressure in the cooking inner container can open the pressure regulating valve inner container when it is smaller, so that the air inlet is opened, the steam in the cooking inner container can enter the first cavity, and then flows out through the air outlet until the steam pressure in the cooking inner container falls to the preset value. In this way, the adjustment of the steam pressure in the cooking inner container is realized. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective structural schematic view of the cooking device from one angle provided by an embodiment of the present application;

[0032] Figure 2 is a perspective structural schematic view of the cooking device from another angle provided by an embodiment of the present application;

[0033] Figure 3 is a perspective structural schematic view of the pressure regulating valve body of the pressure adjusting structure of the cooking device provided by an embodiment of the present application;

[0034] Figure 4 is a top view of Figure 3 ;

[0035] Figure 5 is a side view of Figure 4Cross-sectional view at A-A.

[0036] Figure:

[0037] 1, cooking liner; 11, steam generator;

[0038] 21, pressure regulating valve body; 211, pressure regulating valve housing; 212, first cavity; 213, air inlet; 214, air outlet; 215, pressure regulating valve liner; 216, second cavity; 217, liquid inlet; 218, liquid outlet; 219, weight sensor; 22, liquid outlet pump; 23, liquid inlet pump;

[0039] 3, first steam discharge pipe;

[0040] 41, fan; 42, air duct;

[0041] 5, pressure relief valve;

[0042] 6, second steam discharge pipe;

[0043] 7, water tank;

[0044] 8, control unit. DETAILED DESCRIPTION

[0045] The following examples illustrate the present application, but the present application is not limited by these examples. Modifications or equivalent replacements of the specific embodiments of the present application or partial technical features, without departing from the spirit of the present application, should be covered in the technical solution range claimed by the present application.

[0046] Reference should be made to Figures 1-5 The present application provides a pressure regulating structure of a cooking device, which comprises a pressure regulating valve body 21, the pressure regulating valve body 21 comprising a pressure regulating valve housing 211, a pressure regulating valve liner 215 and a liquid inlet regulating structure. The pressure regulating valve housing 211 is provided with a first cavity 212, and the pressure regulating valve body 21 is further provided with an air inlet 213 and an air outlet 214 which are in communication with the first cavity 212, and the pressure regulating valve body 21 is connected to a first steam discharge pipe 3 of a cooking liner 1 of the cooking device through the air inlet 213 and the air outlet 214. The pressure regulating valve liner 215 is arranged in the first cavity 212 and has a gap between the inner wall of the first cavity 212, and the pressure regulating valve liner 215 is provided with a second cavity 216, and the pressure regulating valve liner 215 can move in the first cavity 212 in a vertical direction to open or close the air inlet 213. The liquid inlet regulating structure is connected to the pressure regulating valve liner 215 and is used for regulating the weight of the liquid entering and flowing out of the second cavity 216.

[0047] The cooking equipment pressure adjusting structure provided by the application adjusts the weight of the liquid in the second cavity 216 by setting the liquid inlet adjusting structure, so as to adjust the pressure of the air inlet 213, and then adjust the steam pressure in the cooking liner 1. Specifically, when the steam pressure in the cooking liner 1 needs to be increased, the weight of the liquid in the second cavity 216 is increased, so that the pressure of the pressure regulating valve liner 215 pressing the air inlet 213 is increased, the steam pressure in the cooking liner 1 needs to be higher, the pressure regulating valve liner 215 is opened, the air inlet 213 is opened, the steam in the cooking liner 1 can enter the first cavity 212, and then flows out through the air outlet 214, until the steam pressure in the cooking liner 1 falls to the preset value. When the steam pressure in the cooking liner 1 needs to be reduced, the weight of the liquid in the second cavity 216 is reduced, so that the pressure of the pressure regulating valve liner 215 pressing the air inlet 213 is reduced, the steam pressure in the cooking liner 1 is smaller, the pressure regulating valve liner 215 is opened, the air inlet 213 is opened, the steam in the cooking liner 1 can enter the first cavity 212, and then flows out through the air outlet 214, until the steam pressure in the cooking liner 1 falls to the preset value. In this way, the steam pressure in the cooking liner 1 is adjusted.

[0048] Optionally, the liquid inlet adjusting structure comprises a liquid inlet pump 23 and a liquid outlet pump 22. The liquid inlet pump 23 is in communication with the second cavity 216 and is used for conveying liquid into the second cavity 216. The liquid outlet pump 22 is in communication with the second cavity 216 and is used for pumping the liquid in the second cavity 216 out, so as to adjust the weight of the liquid in the second cavity 216.

[0049] Optionally, the liquid inlet adjusting structure further comprises a weight sensor 219, which is located on the lower side of the pressure regulating valve liner 215 and is used for detecting the weight of the liquid in the second cavity 216, so as to control the operation of the liquid inlet pump 23 and the liquid outlet pump 22. When the pressure regulating valve liner 215 moves in the first cavity 212 along the vertical direction, the weight sensor 219 can open or close the air inlet 213.

[0050] Optionally, the pressure regulating valve liner 215 is further provided with a liquid inlet port 217 and a liquid outlet port 218, both of which are in communication with the second cavity 216. The liquid outlet port 218 is connected with the liquid inlet pump 23, and the liquid outlet port 218 is connected with the liquid outlet pump 22.

[0051] Specifically, the liquid inlet port 217 and the liquid outlet port 218 both extend from the pressure regulating valve shell 211, so as to facilitate the connection of the liquid inlet pump 23 with the liquid inlet port 217 and the connection of the liquid outlet pump 22 with the liquid outlet port 218.

[0052] Optionally, the cooking device further comprises a control unit 8, the weight sensor 219, the liquid inlet pump 23 and the liquid outlet pump 22 are in communication connection with the control unit 8. A user can set a steam pressure value of the cooking liner 1 through the control unit 8, and the control unit 8 controls the liquid inlet pump 23 and the liquid outlet pump 22 to operate according to the set steam pressure value and the signal sent by the weight sensor 219, so as to adjust the weight of the liquid in the second cavity 216 to correspond to the set steam pressure value.

[0053] In another aspect, the application provides a cooking device, which comprises a cooking liner 1, a first steam discharge pipeline 3 connected with the cooking liner 1, and the pressure adjusting structure as described above.

[0054] Optionally, the cooking device further comprises a water tank 7, and the liquid inlet adjusting structure is connected with the water tank 7. Specifically, the liquid inlet pump 23 and the liquid outlet pump 22 are both connected with the water tank 7, so that the liquid inlet pump 23 can pump the water in the water tank 7 into the second cavity 216, and the liquid outlet pump 22 can pump the water in the second cavity 216 into the water tank 7.

[0055] Optionally, the cooking device further comprises a steam generator 11, which is installed in the cooking liner 1 to provide steam for the cooking liner 1 and to perform high-pressure steaming on food placed in the cooking liner 1.

[0056] Optionally, the cooking device further comprises an air duct structure, and the first steam discharge pipeline 3 is connected with the air duct structure to discharge the steam in the first steam discharge pipeline 3 through the air duct structure.

[0057] Optionally, the cooking device further comprises a second steam discharge pipeline 6 and a pressure relief valve arranged on the second steam discharge pipeline 6, one end of the second steam discharge pipeline 6 is connected with the cooking liner 1, and the other end is connected with the air duct structure. During cooking, the pressure relief valve 5 remains in a closed state, and after cooking, the pressure relief valve 5 is opened to discharge all the steam in the cooking liner 1.

[0058] Optionally, the air duct structure comprises an air fan 41 and an air duct 42, and the first steam discharge pipeline 3 and the second steam discharge pipeline 6 are both in communication with the air duct 42, and the air fan 41 is used to pump the steam in the air duct 42 out of the cooking device.

[0059] Optionally, the air duct 42 is further provided with a water outlet, the water tank 7 is further provided with a water inlet, and the water outlet and the water inlet are connected through a reflux pipeline, so that the condensed water in the air duct 42 flows into the water tank 7 through the reflux pipeline.

[0060] In still another aspect, the application provides a method for operating the cooking device as described above, which comprises the following steps:

[0061] S1: obtaining a cooking pressure set by a user;

[0062] S2: the control unit of the cooking device calculates the corresponding weight G1 of the liquid in the second cavity 216 according to the user-set cooking pressure;

[0063] S3: it is determined whether the current weight G2 of the liquid in the second cavity 216 is equal to G1, if yes, S4 is entered, if no, S5 is entered;

[0064] S4: the steam generator 11 of the cooking device operates to perform the cooking operation;

[0065] S5: it is determined whether G2 < G1, if yes, the liquid adjustment structure adjusts more liquid into the second cavity 216 until G2 = G1, and then S4 is entered;

[0066] S6: it is determined whether G2 > G1, if yes, the liquid adjustment structure discharges the liquid in the second cavity 216 until G2 = G1, and then S4 is entered.

[0067] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A pressure regulating structure for a cooking device, characterized in that, Includes a pressure regulating valve body (21), said pressure regulating valve body (21) comprising: The pressure regulating valve housing (211) has a first cavity (212) inside. The pressure regulating valve housing (211) is also provided with an air inlet (213) and an air outlet (214) communicating with the first cavity (212). The pressure regulating valve housing (211) is connected to the first steam discharge pipe (3) of the cooking inner pot (1) of the cooking equipment through the air inlet (213) and the air outlet (214). The pressure regulating valve inner liner (215) is disposed in the first cavity (212) and there is a gap between it and the inner wall of the first cavity (212). The pressure regulating valve inner liner (215) is provided with a second cavity (216). The pressure regulating valve inner liner (215) can move vertically in the first cavity (212) to open or close the air inlet (213). The liquid inlet adjustment structure is connected to the inner liner of the pressure regulating valve (215) and is used to adjust the weight of the liquid entering and flowing out of the second cavity (216) so as to adjust the weight of the liquid in the second cavity (216) and thus make the pressure of the inner liner of the pressure regulating valve (215) pressing the air inlet (213) adjustable.

2. The pressure regulating structure of the cooking device according to claim 1, characterized in that, The liquid inlet regulating structure includes: The inlet pump (23) is connected to the second cavity (216) and is used to deliver liquid into the second cavity (216); The liquid pump (22) is connected to the second cavity (216) and is used to extract the liquid in the second cavity (216).

3. The pressure regulating structure of the cooking equipment according to claim 2, characterized in that, The liquid inlet adjustment structure also includes a weight sensor (219), which is located on the lower side of the pressure regulating valve inner liner (215) and is used to detect the weight of the liquid in the second cavity (216). When the pressure regulating valve inner liner (215) moves vertically in the first cavity (212), the weight sensor (219) can open or close the air inlet (213).

4. The pressure regulating structure of the cooking device according to claim 3, characterized in that, The inner liner (215) of the pressure regulating valve is also provided with an inlet (217) and an outlet (218) that are both connected to the second cavity (216). The inlet (217) is connected to the inlet pump (23), and the outlet (218) is connected to the outlet pump (22).

5. The pressure regulating structure of the cooking device according to claim 3, characterized in that, It also includes a control unit (8), and the weight sensor (219), the inlet pump (23) and the outlet pump (22) are all communicatively connected to the control unit (8).

6. A cooking device, characterized in that, It includes a cooking inner pot (1), a first steam exhaust pipe (3) connected to the cooking inner pot (1), and a pressure regulating structure according to any one of claims 1-5.

7. The cooking apparatus according to claim 6, characterized in that, It also includes a water tank (7), and the liquid inlet adjustment structure is connected to the water tank (7).

8. The cooking apparatus according to claim 6, characterized in that, It also includes a steam generator (11) installed inside the cooking liner (1).

9. The cooking apparatus according to claim 6, characterized in that, It also includes a duct structure, to which the first steam discharge pipe (3) is connected to the duct structure so that the steam in the first steam discharge pipe (3) is discharged through the duct structure.

10. The cooking apparatus according to claim 9, characterized in that, It also includes a second steam exhaust pipe (6) and a pressure relief valve (5) installed on the second steam exhaust pipe (6). One end of the second steam exhaust pipe (6) is connected to the cooking inner pot (1), and the other end is connected to the air duct structure. During cooking, the pressure relief valve (5) remains closed. After cooking, the pressure relief valve (5) is opened to exhaust all the steam in the cooking inner pot (1).

11. A method of operating a cooking apparatus as described in any one of claims 6-10, characterized in that, Includes the following steps: S1: Obtain the cooking pressure set by the user; S2: The control unit of the cooking equipment calculates the weight G1 of the liquid in the second cavity (216) according to the cooking pressure set by the user; S3: Determine whether the current weight G2 of the liquid in the second cavity (216) is equal to G1. If yes, proceed to S4; otherwise, proceed to S5. S4: The steam generator (11) of the cooking equipment is activated to perform the cooking operation; S5: Determine whether G2 < G1. If so, the liquid inlet adjustment structure adjusts more liquid to enter the second cavity (216) until G2 = G1, and then proceeds to S4; S6: Determine whether G2 > G1. If so, the liquid inlet adjustment structure will drain the liquid in the second cavity (216) until G2 = G1, and then proceed to S4.

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