CN219962599U - Driving device and cooking utensil - Google Patents

Abstract

The application discloses a driving device and a cooking appliance. The driving device comprises a first driving component and a second driving component. The second drive assembly interacts with the first drive assembly, the second drive assembly being configured to be movable in a second direction relative to the first drive assembly under the influence of the first drive assembly, the second drive assembly having a connecting portion for connecting to and acting on the second component and a first transmission surface having a first transmission surface first end and a first transmission surface second end oppositely disposed in the second direction, the first transmission surface first end being located in a first direction different from the first transmission surface second end, wherein the connecting portion is for connecting to and acting on the second component and the first transmission surface is for connecting to and acting on the first component.

Description

Driving device and cooking utensil

Technical Field

The application relates to the technical field of cooking appliances, in particular to an intermediate power transmission assembly and a cooking appliance.

Background

In order to improve user experience, the functions of the cooking appliance are gradually complicated, so that the number of hardware components of the cooking appliance is increased, and the control is complicated.

Accordingly, there is a need for a driving device and a cooking appliance to at least partially solve the above problems.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above problems, a first aspect of the present utility model provides a driving apparatus, applied to a cooking appliance, for simultaneously driving a first part of the cooking appliance to move in a first direction and driving a second part of the cooking appliance to move in a second direction, wherein the first direction is different from the second direction, the driving apparatus comprising:

a first driving assembly for being provided to the cooking appliance; and

a second drive assembly for being provided to the cooking appliance and for interacting with the first drive assembly, the second drive assembly being configured to be movable in the second direction relative to the first drive assembly under the influence of the first drive assembly, the second drive assembly having a connecting portion and a first transmission surface having a first transmission surface first end and a first transmission surface second end disposed opposite in the second direction, the position of the first transmission surface first end in the first direction being different from the position of the first transmission surface second end in the first direction,

Wherein the connection portion is for connecting to and acting on the second component and the first transmission surface is for connecting to and acting on the first component.

According to the present application, a stable driving force is provided by the interaction of the first driving assembly and the second driving assembly. By providing the connection and the first transmission surface on the second drive assembly, the connection acts on the second part and the first transmission surface acts on the first part when the second drive assembly is moved. Thus realizing actuation in two directions, and having simple control and stable performance.

Optionally, the first driving component and the second driving component are used for being arranged along the second direction,

one of the first driving assembly and the second driving assembly comprises an electromagnet, and the other of the first driving assembly and the second driving assembly comprises a magnetic substance.

According to the application, the electromagnet and the magnetic substance are actuated, so that the control is simple and the performance is stable.

Optionally, the second driving assembly includes:

a second driving assembly body for being provided to the cooking appliance and movable in the second direction with respect to the first driving assembly, the second driving assembly body being provided with the electromagnet or the magnetic substance;

The connecting part is connected to the second driving assembly main body;

a ramp portion connected to the second drive assembly body, the ramp portion including the first transmission surface.

According to the present application, the second driving assembly is compact.

Optionally, the inclined surface portion is configured as a triangular prism shape, an axis of the triangular prism is perpendicular to the second direction, one side surface of the triangular prism is connected to the second driving assembly body, and the other two side surfaces of the triangular prism serve as the first transmission surface.

According to the application, the first transmission surface construction method is simple.

Optionally, the connection portion and the inclined surface are provided to opposite sides of the second driving assembly body, respectively.

According to the application, the second drive assembly does not interfere with the movement of the first and second members.

Optionally, the first driving assembly includes the magnetic substance, and the second driving assembly includes the electromagnet.

According to the application, the electromagnet and the magnetic substance are actuated, so that the control is simple and the performance is stable.

Optionally, the second drive assembly body is provided with a body recess in which the electromagnet is disposed.

According to the application, the electromagnet is firmly installed.

Optionally, a notch is formed in the groove wall of the main body groove and is used for accommodating the plug of the electromagnet.

According to the application, the electromagnet is convenient to be connected with electricity. Optionally, the first driving assembly includes:

the iron block is used for attracting the electromagnet of the second driving assembly mutually;

a bracket cover for being provided to the cooking appliance; and

and a bracket connected to the bracket cover and the iron block such that the iron block is not movable with respect to the bracket cover.

Further, the bracket cover is connected with the bracket through a screw pair, and/or

The bracket has an interior cavity for receiving the iron block.

According to the application, the first drive assembly is compact.

Optionally, the first drive assembly comprises a motor for driving the screw in rotation and a screw extending in the second direction,

the second drive assembly includes a reversing thread for mating with the external thread of the lead screw.

According to the application, the power provided by the motor is transmitted to the driving piece through the lead screw, so that the transmission is efficient.

Optionally, the first drive assembly comprises a motor and a gear, the motor for driving the gear in rotation, the axis of rotation of the gear being perpendicular to the second direction,

The second drive assembly includes a rack for meshing with the gear, the rack extending in the second direction.

According to the application, the power provided by the motor is transmitted to the driving piece through the gear rack assembly, so that the transmission is efficient.

Optionally, the first transmission surface is configured as a plane.

According to the application, the first transmission surface can provide a stable active surface when the second driving assembly moves, so that the state switching stability of the second component is ensured.

Optionally, the first transmission surface is perpendicular to a plane defined by the first direction and the second direction.

According to the application, the second driving assembly can stably maintain the state after being switched to the preset state.

Optionally, the driving device further includes a first guiding portion, where the first guiding portion is disposed on the second driving assembly and extends along the second direction, and is configured to cooperate with the second guiding portion of the cooking appliance to guide the second driving assembly to move along the second direction.

According to the present application, the guide portion stably moves the second driving assembly.

Optionally, the first guide is configured as a guide rail or a guide groove.

According to the application, the second driving component can stably move under the guiding action of the sliding rail and the sliding groove.

Optionally, the first direction is perpendicular to the second direction.

According to the application, the first part and the second part move in two perpendicular directions.

The application also provides a cooking appliance comprising:

a first member configured to be movable in a first direction;

a second member configured to be movable in a second direction; and

the drive device according to the above, wherein the first transmission surface is adapted to be connected to and act on the first part and the connection is adapted to be connected to and act on the second part such that the first part cooperates with the second part.

According to the application, the multi-component actuation can be realized by using fewer power mechanisms, and the application has the advantages of low cost, simple control and stable performance.

Optionally, the cooking appliance includes:

the pot body is used for accommodating and heating food materials;

the cover body is arranged on the cooker body in an openable and closable manner so as to form a cooking space between the cover body and the cooker body, and the cover body is provided with an air inlet and an air outlet which are used for communicating the cooking space and a communication port which is used for communicating the cooking space with the external environment;

the communication port opening and closing assembly is arranged on the cover body and can move along a second direction relative to the cover body and is used for opening or blocking the communication port;

The air channel structure comprises an air flow generating device and an air flow reversing device connected with the air flow generating device through a pipeline, and the air flow reversing device is movable relative to the cover body along a first direction and is used for realizing air flow reversing in the air channel structure, one end of the air channel structure is communicated with the air inlet and the air outlet, and the other end of the air channel structure is communicated with the external environment; and

the driving device according to the above, wherein the first transmission surface is adapted to be connected to and act on the air flow reversing device, and the connection portion is adapted to be connected to and act on the communication port opening and closing assembly.

According to the application, the driving device can drive the communication opening and closing assembly and the airflow reversing device at the same time, so that the communication opening and closing assembly and the airflow reversing device are linked, thereby cooperatively changing the communication state of the cooking space and the environment and the airflow direction in the air passage, easily controlling the air pressure in the cooking space, improving the integration level of the functions of the cooking appliance, and improving the user experience.

Optionally, in a state that the cover body covers the cooker body,

the first direction is a horizontal direction and/or the second direction is a vertical direction.

Drawings

The following drawings are included to provide an understanding of the application and are incorporated in and constitute a part of this specification. Embodiments of the present application and their description are shown in the drawings to explain the principles of the application.

In the accompanying drawings:

fig. 1 is a schematic side sectional view of a cooking appliance according to a first embodiment of the present application;

fig. 2 is a top perspective view schematically showing an internal structure of a cover of the cooking appliance of fig. 1, in which a driving device according to a first embodiment of the present application is shown;

FIG. 3 is a side sectional view schematically showing an internal structure of a cover of the cooking appliance of FIG. 1, in which a communication port opening and closing assembly is located at an open position;

FIG. 4 is a schematic side sectional view of an internal structure of a cover of the cooking appliance of FIG. 1, wherein the communication port opening and closing assembly is located at a blocking position;

FIG. 5 is a schematic top view in cross-section of the airflow reversing device shown in FIG. 2, with the valve spool in a second vent position;

FIG. 6 is a schematic top view in cross-section of the airflow reversing device shown in FIG. 2, with the valve spool in a first vent position;

fig. 7 is a schematic view of an air flow path of the cooking appliance of fig. 1, in which a driving device according to a first embodiment of the present application is in a ventilating operation state;

fig. 8 is a schematic view of an air flow path of the cooking appliance of fig. 1, in which a driving device according to a first embodiment of the present application is in a sealed operation state;

Fig. 9 is a side sectional view schematically showing an internal structure of a cover of the cooking appliance of fig. 1, in which a driving device according to a first embodiment of the present application is in a ventilating operation state;

fig. 10 is a side sectional view schematically showing an internal structure of a cover of the cooking appliance of fig. 1, in which a driving device according to a first embodiment of the present application is in a sealed operation state;

fig. 11 is a schematic perspective view of a second driving assembly of the driving apparatus according to the first embodiment of the present application;

FIG. 12 is a schematic side cross-sectional view of the second drive assembly shown in FIG. 11;

fig. 13 is a schematic perspective view of a first driving assembly of a driving device according to a first embodiment of the present application;

FIG. 14 is a schematic side cross-sectional view of the first drive assembly shown in FIG. 9;

fig. 15 is a schematic cross-sectional side view illustrating an internal structure of a cover of a cooking appliance according to a second embodiment of the present application, wherein a driving device according to the second embodiment of the present application is in a ventilating operation state;

fig. 16 is a schematic side sectional view showing an internal structure of a cover of a cooking appliance according to a second embodiment of the present application, wherein a driving device according to the second embodiment of the present application is in a sealed operation state.

Reference numerals illustrate:

10: cover body

11: face cover

12: lining cover

13: removable cover

14: pot opening sealing ring

16: venting chamber

16A: vent outside the vent chamber

17: communication port

18: inlet and outlet

18A: additional air inlet and outlet

19: inlet and outlet air cavity

21: first fixing seat

22: second fixing seat

23: first sealing member

24: second sealing member

25: third seal member

26: push rod through hole

30: pot body

31: pot liner

32: cooking space

33: heating device

34: top temperature sensor

35: torsion spring

40: communication port opening and closing assembly

41: push rod

42: push rod sleeve

43: flange

44: push rod spring

45: push rod assembly

46: first end of push rod assembly

47: second end of push rod assembly

48: first end of push rod

49: second end of push rod

50: air flow reversing device

51: first air vent

52: second ventilation port

53: third air vent

54: fourth air vent

55: valve body

55A: valve inner cavity

55B: valve hole

55C: first end of valve body

55D: second end of valve body

55E: a first inner cavity

55F: a second inner cavity

55G: a third inner cavity

55H: fourth inner cavity

56: valve core

57: valve core spring

58: valve core main body

58A: valve core inner cavity

58B: first through hole

58C: second through hole

59A: first sealing ring

59B: second sealing ring

59C: third sealing ring

60: driving device

61: link mechanism

62: connecting rod

63: first end of connecting rod

64: second end of connecting rod

65: first pin shaft

66: second pin shaft

70: second drive assembly

71: the second driving assembly body

71A: notch

72: bevel portion

73: main body groove

74: bolt

75/79: first transmission surface

75A/79A: first end/lower end of first transmission surface

75B/79B: first drive surface second end/high end

76: connecting part/connecting pin

77: electromagnet

77A: plug

78: sliding rail

80: first drive assembly

81: iron block

82: support frame

83: bracket cover

85: air path structure

90: steam valve

92: steam valve inner cavity

93: air pump air inlet

94: air outlet of air pump

95: air flow generating device/air pump

100: cooking utensil

D1: first direction

D2: second direction

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the application may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the application.

In the following description, a detailed description will be given for the purpose of thoroughly understanding the present application. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. It will be apparent that embodiments of the application may be practiced without limitation to the specific details that are familiar to those skilled in the art. Preferred embodiments of the present application are described in detail below, however, the present application may have other embodiments in addition to these detailed descriptions.

Ordinal numbers such as "first" and "second" cited in the present application are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component". The use of the words "first," "second," and "third," etc. do not denote any order, and the words are to be interpreted as names.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer" and the like are used in the present application for illustrative purposes only and are not limiting.

The application provides a driving device and a cooking utensil with the same. Wherein the driving device is applied to the cooking appliance for simultaneously driving a first part of the cooking appliance to move in a first direction and driving a second part of the cooking appliance to move in a second direction, wherein the first direction is different from the second direction. For example, the first component is an airflow reversing device, and the second component is a communication port opening and closing assembly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings.

As shown in fig. 1, in a specific embodiment, the cooking appliance 100 of the present application includes a cover 10 and a pot 30. The pot body 30 is used for cooking food, the cover body 10 is used for covering the pot body 30, for example, the cover body 10 is connected to the pot body 30 in an openable and closable manner, and is used for covering the pot body 30. When the cover 10 covers the pot body 30, a cooking space 32 is formed between the cover 10 and the pot body 30.

The pot body 30 is provided with a pot container 31 for accommodating food materials, a heating device 33, a control device (not shown), and a temperature sensor (not shown). A pot container 31 for holding food material is removably provided in the pot body 30. When the cover body 10 covers the pot body 30, a cooking space 32 is formed between the cover body 10 and the pot liner 31. The heating device 33 is disposed at the bottom of the pot body 30 below the pot liner 31 to heat the food in the pot liner 31. The control device may be, for example, a micro control unit (Micro Control Unit, abbreviated as MCU) for implementing cooking control of the cooking appliance. The temperature sensor is used to detect the temperature of the pot bladder 31 or the cooking space, and may be disposed at the bottom center of the pot body 30, or disposed at the side of the pot body 30, or disposed at the top of the pot body 30. The heating device 33, the temperature sensor are electrically connected to the control device. The temperature sensing means feeds back the sensed temperature to the control device, so that the control device can realize more accurate control of, for example, the heating device 33 or the like based on the temperature information.

In the application, the cover body 10 is connected with the cooker body 30 through the pivot shaft, the torsion spring 35 is arranged on the pivot shaft, the torsion spring 35 can apply elastic force to the cover body 10 far away from the cooker body 30, and when the cover body 10 is opened, the cover body 10 can be sprung up to rotate around the pivot shaft under the action of the elastic force of the torsion spring 35.

The cover 10 includes a face cover 11, a liner cover 12, and a removable cover 13. The face cover 11 is located at the outermost side (i.e., uppermost side) of the cover 10 to constitute the outer shell of the cover 10. The liner cover 12 is disposed below the face cover 11, and is connected to the face cover 11. For example, the liner cover 12 may be connected to the face cover 11 by fasteners or snaps. The liner cover 12 is mainly used for intensively mounting various functional parts of the cover body 10, such as a sensor, etc., for sensing and controlling the operating state of the cooking appliance. The detachable cover 13 is located at the innermost side (i.e., lowermost side) of the cover body 10, and is disposed below the liner cover 12. Removable cover 13 is removably attached to liner cover 12, such as by a snap-fit connection, to facilitate cleaning and replacement. The detachable lid 13 is configured to face the cooking space 32, i.e., when the lid 10 is closed on the pot 30, the detachable lid 13 is located directly above the cooking space 32. An interlayer may be formed between the liner cover 12 and the detachable cover 13. The detachable cover 13 is provided with a pot opening sealing ring 14, when the cover body 10 covers the pot body 30, the pot opening sealing ring 14 is in sealing contact with the opening or the inner wall of the pot liner 31, so that the sealing between the cover body 10 and the pot liner 31 is realized, and the pot opening sealing ring can adapt to pressure cooking.

The cover body 10 is provided with an air inlet and outlet cavity 19. The air inlet and outlet chamber 19 comprises two openings, an air inlet and outlet 18 and an additional air inlet and outlet 18A. The air inlet and outlet 18 is used to communicate the air inlet and outlet chamber 19 with the cooking space 32, i.e. the air inlet and outlet 18 communicates with the cooking space 32. The air inlet and outlet chamber 19 is provided to the liner cover 12, for example. The additional air inlet and outlet port 18A is used to communicate with the air flow generating device 95 so that the cooking space 32 communicates with the air flow generating device 95 through the air inlet and outlet chamber 19 of the cover 10.

The cover 10 is provided with a vent chamber 16. The vent lumen 16 is not in communication with the access lumen 19 inside the cover 10. Cooking space 32 communicates with the external environment through venting chamber 16. The ventilation chamber 16 is defined by, for example, a portion of the liner cover 12 and a portion of the removable cover 13. Correspondingly, the detachable cover 13 is provided with a communication port 17, and the communication port 17 communicates the ventilation cavity 16 with the cooking space 32. The liner cover 12 is provided with a ventilation chamber outside vent hole 16A, and the ventilation chamber outside vent hole 16A communicates with the ventilation chamber 16 and the outside environment, respectively, so that the cooking space 32 communicates with the outside.

For example, the cover 10 is provided with a steam valve 90. The steam valve 90 is provided with a steam valve vent (not shown) communicating with the outside, and the cover 10 is also provided with a steam passage (not shown) communicating with the steam valve 90. The vent chamber outside vent hole 16A communicates to the steam passage. Thus, the cooking space 32 communicates with the outside environment through the communication port 17, the ventilation chamber 16, the ventilation chamber outside ventilation hole 16A, the steam passage, and the steam valve 90. Alternatively, the vapor valve vent may be directly connected to the vent chamber external vent hole 16A. In the present application, the steam valve 90 serves to communicate the cooking space 32 with the external environment to discharge steam generated by cooking.

On the basis of the above embodiment, the second sealing member 24 is provided between the liner cover 12 and the detachable cover 13 to form the side wall of the ventilation chamber 16, and the second sealing member 24 is in sealing contact with the liner cover 12 and the detachable cover 13, respectively, so that the steam generated by cooking can only enter the ventilation chamber 16 from the communication port 17, but not enter other parts of the liner cover 12. The air inlet and outlet chamber 19 is in sealing contact with the removable cover 13 by the third sealing member 25, that is, the side wall of the air inlet and outlet chamber 19 is in sealing contact with the removable cover 13, so that steam generated by cooking can only enter the air inlet and outlet chamber 19 from the air inlet and outlet port 18, but not enter other parts of the liner cover 12.

As shown in fig. 2, in the present application, a communication port opening and closing assembly 40, an airflow reversing device 50, a driving device 60 according to a preferred embodiment of the present application, and an airflow generating device 95 are mounted on the liner cover 12. Wherein the communication port opening and closing assembly 40 is movable with respect to the communication port 17 for opening or closing the communication port 17. The airflow reversing device 50 is respectively connected to the airflow generating device 95 and the air inlet and outlet 18, and is used for switching the airflow direction between the airflow generating device 95 and the air inlet and outlet 18, so that the airflow generating device 95 sends or sucks air into the cooking space 32 through the air inlet and outlet 18. In the present application, the air flow generating device 95 and the air flow reversing device 50 are connected by a pipe to form the air path structure 85 of the cooking appliance 100. The drive means 60 is movable relative to the cover 10. The driving means 60 is connected to and acts on the communication port opening and closing assembly 40 and the air flow reversing device 50 such that the operating states of the communication port opening and closing assembly 40 and the air flow reversing device 50 are changed when the driving means 60 moves relative to the cover 10. It will be appreciated that the airflow generating device 95 is electrically connected to and operates under the control of the control device.

In the present application, the drive means 60 drives the airflow reversing device 50 in a first geometrical dimension (first direction D1 is shown); the driving device 60 drives the communication opening and closing assembly 40 to move in the second geometric dimension (second direction D2 is shown), and the airflow reversing device 50 and the communication opening and closing assembly 40 can be operated simultaneously or at a certain time interval under the driving of the driving device 60. Preferably, the first direction D1 is a horizontal direction and the second direction D2 is a vertical direction in a state where the cover 10 covers the pot body 30.

In some embodiments of the present application, when the driving device 60 moves relative to the cover 10, the driving device 60 drives the communication opening and closing assembly 40 and the airflow reversing device 50 to synchronously or cooperatively act, so that the cooking space 32 has two air pressure states under the action of the communication opening and closing assembly 40 and the airflow generating device 95. Specifically, the two air pressure states of the cooking space 32 include: a first air pressure state in which the cooking space 32 communicates with the outside environment; the air pressure of the cooking space 32 is lower than the second air pressure state of the external ambient air pressure. It can be appreciated that according to specific requirements of different cooking procedures of the cooking appliance 100, the driving device 60 and the air flow generating device 95 can be controlled to make the cooking space 32 in different air pressure states, and different air pressures exist in the cooking space 32, so as to achieve corresponding cooking effects.

Correspondingly, the driving device 60 has different working states when moving to different positions relative to the cover body 10. The different operating states of the driving means 60 correspond to different air pressure states of the cooking space 32. Specifically, the driving device 60 has a ventilation operation state and a sealing operation state. The cooking appliance 100 is configured to: when the driving device 60 is in the ventilation working state, the driving device 60 enables the communication opening and closing assembly 40 to open the communication opening 17 (as shown in fig. 3), so that the cooking space 32 is communicated with the external environment and is in the first air pressure state; when the driving device 60 is in the sealed working state, the driving device 60 causes the communication opening and closing assembly 40 to close the communication opening 17 (as shown in fig. 4), and causes the air flow generating device 95 to be in a state of exhausting air from the cooking space 32, so that the cooking space 32 is in a sealed and air flow-lost state, and thus can be in the second air pressure state.

As can be seen, to achieve the first air pressure state of the cooking space 32, only the communication port 17 needs to be opened. At this time, the cooking space 32 is communicated with the external environment, and the air pressure in the cooking space 32 is the same as the external environment air pressure when the ventilation balance is achieved. At this time, if the air flow generating device 95 operates, an air flow is formed inside the cooking space 32 between the communication port 17 and the air inlet and outlet port 18, and the air flow contains air in the external environment, thereby accelerating ventilation of the cooking space 32 from the external environment without substantially affecting the air pressure in the cooking space 32. To achieve the second air pressure state, the communication port 17 must be blocked, and the air flow generating device 95 must be operated to suck air from the cooking space 32 through the air inlet and outlet port 18, thereby making the interior of the cooking space 32 at a negative pressure.

The mechanism by which the communication port opening and closing assembly 40 opens or closes the communication port 17 will be described below.

In the present application, the cooking appliance 100 is configured such that the driving device 60 drives the communication port opening and closing assembly 40 to move between the open position and the blocking position with respect to the cover 10 in the second direction D2. Wherein, when the communication port opening and closing assembly 40 is located at the open position, the communication port opening and closing assembly 40 opens the communication port 17; when the communication port opening and closing assembly 40 is located at the blocking position, the communication port 17 is blocked by the communication port opening and closing assembly 40.

In some embodiments of the present application, as shown in fig. 3 and 4, the liner cap 12 is provided with a mounting seat for mounting the active components. The holders include a second holder 22 enclosing the ventilation chamber 16 and a first holder 21 mounted to the second holder 22. The first fixing seat 21 is provided with a push rod through hole 26 extending in the second direction D2, and the push rod through hole 26 extends all the way to the ventilation cavity 16. The communication port 17 is located directly below the push rod through hole 26.

The communication port opening and closing assembly 40 includes a push rod assembly 45, the push rod assembly 45 being disposed in the push rod through hole 26, wherein the driving device 60 is connected to and acts on the push rod assembly 45 such that the push rod assembly 45 is movable relative to the push rod through hole 26 between a blocking position and an open position, the push rod assembly 45 including a push rod assembly first end 46 and a push rod assembly second end 47 disposed opposite in the second direction D2. As shown in fig. 4, when the push rod assembly 45 is located at the blocking position, the first end 46 of the push rod assembly blocks the communication port 17, the cooking space 32 is not communicated with the ventilation cavity 16, and the driving device 60 is in a sealing working state; as shown in fig. 3, when the push rod assembly 45 is in the open position, the push rod assembly first end 46 opens the communication port 17 and the cooking space 32 communicates with the vent chamber 16. Preferably, the second direction D2 is a vertical direction, and the plugging position of the push rod assembly 45 is lower than the open position of the push rod assembly 45. The end of the push rod through hole 26 facing the ventilation chamber 16 is provided with a first seal 23, the first seal 23 being used for sealing between the push rod through hole 26 and the ventilation chamber 16. Specifically, the first seal 23 sealingly contacts the pushrod assembly 45 such that gas in the venting chamber 16 does not leak from the pushrod through bore 26.

The pushrod assembly second end 47 is provided with a flange 43 projecting outwardly in a radial direction, the radial dimension of the flange 43 being greater than the radial dimension of the pushrod through bore 26. The communication port opening and closing assembly 40 further includes a push rod spring 44, wherein the push rod spring 44 is sleeved on the periphery of the second end 47 of the push rod assembly and is located between the flange 43 and the first fixing seat 21, and in the blocking position, the first end 46 of the push rod assembly compresses the first sealing member 23 to the communication port 17, and the push rod spring 44 is compressed.

In one possible implementation of the present embodiment, the push rod assembly 45 includes a push rod 41 and a push rod sleeve 42.

The push rod 41 extends in the second direction D2. Specifically, the push rod 41 is disposed in the push rod through hole 26 and is movable in the second direction D2 relative to the first fixing base 21 between a blocking position (shown in fig. 4) and an open position (shown in fig. 3). Wherein the push rod 41 includes a push rod first end 48 and a push rod second end 49 disposed opposite in the second direction D2, the push rod first end 48 being for blocking or opening the communication port 17. When the push rod 41 is in the blocking position, the push rod first end 48 blocks the communication port 17; when the pushrod 41 is in the open position, the pushrod 41 pushrod first end 48 opens the communication port 17. The first seal 23 sealingly contacts the pushrod first end 48 such that gas in the venting chamber 16 does not leak from the pushrod through bore 26. The pushrod first end 48 is also referred to as pushrod assembly first end 46.

The push rod sleeve 42 is sleeved on the outer periphery of the second end 49 of the push rod 41, and the push rod sleeve 42 and the push rod 41 move synchronously relative to the first fixing seat 21 along the second direction D2. The end of the push rod sleeve 42 in the second direction D2 remote from the communication port 17 is provided with a flange 43. The push rod spring 44 is sleeved on the periphery of the push rod 41 and is located between the flange 43 and the first fixing seat 21. The push rod second end 49 and the push rod sleeve 42 form the push rod assembly second end 47. Wherein the drive means 60 is connected to and acts on the push rod sleeve 42.

When the driving device 60 is changed from the ventilation operation state to the sealing operation state, the driving device 60 moves the push rod sleeve 42 relative to the first fixing seat 21 in the second direction D2 (e.g., downward toward the communication port 17), so that the push rod 41 is moved to the blocking position, and the push rod spring 44 is compressed; when the driving device 60 is changed from the sealing operation state to the ventilation operation state, the push rod spring 44 moves the push rod sleeve 42 in the second direction D2 relative to the first fixing base 21 (e.g., upward away from the communication port 17), so that the push rod 41 is moved to the open position. It will be appreciated that movement of the push rod 41 relative to the communication port 17 changes position (from the open position to the closed position, or vice versa), i.e., the communication port opening and closing assembly 40 changes operating state.

A specific implementation of the airflow reversing device 50 is described below.

As shown in fig. 5 and 6, the air flow reversing device 50 is configured as a reversing valve, for example. The reversing valve includes a valve chamber 55A and a spool 56, the spool 56 being disposed in the valve chamber 55A and movable therein to switch the air flow passage therein. The reversing valve 50 includes a first vent 51, a second vent 52, a third vent 53, and a fourth vent 54. The reversing valve 50 is configured such that the communication relationship among the first air port 51, the second air port 52, the third air port 53, and the fourth air port 54 can be changed. That is, when the spool 56 is located at different positions in the valve inner chamber 55A, the communication relationship between the 4 vents is different. For example, the first vent 51 may communicate with one of the third and fourth vents 53 and 54, while the second vent 52 may communicate with the other of the third and fourth vents 53 and 54.

The cooking appliance 100 is configured to: simultaneously or after the communication port 17 is plugged by the communication port opening and closing assembly 40, the driving device 60 drives the valve core 56 to move in the valve inner cavity 55A so as to realize that the air flow direction at the air inlet and outlet port 18 flows from the cooking space 32 to the outside; simultaneously with or after the communication port opening and closing assembly 40 opens the communication port 17, the driving device 60 is caused to drive the valve core 56 to move in the valve inner cavity 55A, so that the airflow direction at the air inlet and outlet port 18 is from the outside to the cooking space 32.

As shown in fig. 7 and 8, the air flow generating device 95 is configured as an air pump, for example. The air pump 95 has an air pump air inlet 93 and an air pump air outlet 94. The air outlet 94 of the air pump of the first air port 51 is communicated. The second air inlet 52 communicates with the air pump air inlet 93. The third air port 53 communicates with the air inlet and outlet 18, and the fourth air port 54 communicates with the external environment.

Specifically, the third air vent 53 communicates with the additional air inlet and outlet 18A of the air inlet and outlet chamber 19 through a sealed air pipe, thereby communicating with the air inlet and outlet 18. I.e., one end of the air path structure 85 communicates with the air inlet and outlet 18. According to the foregoing, the steam valve 90 is used for communication of the cooking space 32 with the outside. Specifically, the steam valve 90 includes a steam valve cavity 92. The fourth air port 54 of the reversing valve 50 is connected to the steam valve inner chamber 92 through an air pipe so that the other end of the air path structure 85 communicates with the outside. The fourth vent port 54 is also in communication with the vent chamber outside vent hole 16A, vent chamber 16, and communication port 17 in sequence through the steam valve inner chamber 92. The opening of the steam valve chamber 92 connected to the reversing valve is not used for discharging steam, i.e. the steam valve 90 is provided with a separate air outlet for discharging steam, and the steam valve chamber 92 is always in communication with the external environment.

Based on the above, the reversing valve 50 is respectively communicated with the air pump 95, the air inlet and outlet 18 and the steam valve 90, and the third air outlet 53 of the reversing valve 50 connected with the air inlet and outlet 18 is one end of the air path structure 85 communicated with the cooking space 32. The fourth air port 54 of the reversing valve 50 connected to the steam valve 90 is an end of the air path structure 85 that communicates with the external environment.

In some embodiments of the present application, the reversing valve 50 includes a valve body 55, the valve body 55 being of hollow construction, constituting a valve cavity 55A. The valve body 55 is provided to the cover body 10 (specifically, the liner cover 12). The aforementioned first vent port 51, second vent port 52, third vent port 53, and fourth vent port 54 are provided to the valve body 55 and communicate with the valve inner chamber 55A. The valve spool 56 is disposed in the valve interior 55A and is movable in a first direction D1 relative to the valve body 55 between a first vent position (shown in fig. 6) and a second vent position (shown in fig. 5) in the valve interior 55A. It will be appreciated that movement of the valve spool 56 relative to the valve body 55 changes position (from the first venting position to the second venting position, or from the second venting position to the first venting position), i.e., the reversing valve 50 changes operating conditions. That is, a portion of the airflow reversing device 50 is movable in a first direction D1 relative to the cover 10 to effect airflow reversing in the air path configuration 85.

The specific manner of communication within the reversing valve 50 is described below.

As shown in fig. 5 and 6, the valve body 55 has a valve body first end 55C and a valve body second end 55D disposed opposite in the first direction D1. The valve body first end 55C is provided with a valve bore 55B. Wherein the valve spool 56 extends out of the valve bore 55B at least in the second vent position. The reversing valve also includes a spool spring 57. A spool spring 57 is also disposed in the valve interior chamber 55A and is located between the valve body second end 55D and the spool 56. The spool spring 57 extends in the first direction D1. Preferably, the first direction D1 is a horizontal direction.

Specifically, the spool 56 includes a spool body 58, a first through hole 58B, a second through hole 58C, a first seal ring 59A, a second seal ring 59B, and a third seal ring 59C.

The valve spool body 58 is disposed in the valve inner chamber 55A and is movable in the first direction D1 relative to the valve inner chamber 55A between a first vent position and a second vent position. The valve body 58 extends out of the valve hole 55B at least in the second ventilation position. The valve core body 58 includes a valve core inner cavity 58A, i.e., the valve core body 58 is hollow in structure.

A first through hole 58B and a second through hole 58C are provided in the spool body 58 so that the valve inner chamber 55A communicates with the spool inner chamber 58A. The first through hole 58B and the second through hole 58C are spaced apart along the first direction D1, the first through hole 58B being adjacent the valve body first end 55C, the second through hole 58C being adjacent the valve body second end 55D.

The first, second and third seal rings 59A, 59B and 59C are fitted around the outer periphery of the valve body 58 and sealingly contact the inner wall of the valve chamber 55A. The first seal ring 59A, the second seal ring 59B, and the third seal ring 59C are sequentially arranged in the first direction D1, the first seal ring 59A being closest to the valve body first end 55C. The first sealing ring 59A and the second sealing ring 59B are located at two sides of the first through hole 58B along the first direction D1, and the second sealing ring 59B and the third sealing ring 59C are located between the first through hole 58B and the second through hole 58C along the first direction.

On the basis of the above embodiment, the four vents of the valve main body 55 are arranged in the first direction D1 in the order of the first vent 51, the third vent 53, the second vent 52, and the fourth vent 54, wherein the first vent 51 is close to the first end 55C of the valve body, and the fourth vent 54 is close to the second end 55D of the valve body. It will be appreciated that the three sealing rings divide the valve interior 55A into four portions that are not in communication with each other, a first interior 55E between the first sealing ring 59A and the first end 55C of the valve body, a second interior 55F between the first sealing ring 59A and the second sealing ring 59B, a third interior 55G between the second sealing ring 59B and the third sealing ring 59C, and a fourth interior 55H between the third sealing ring 59C and the second end 55D of the valve body, respectively. It will be appreciated that as the valve core body 58 moves in the first direction D1, the positions of the three sealing rings within the valve cavity 55A change, such that the distribution of the four portions of the valve cavity 55A changes, and thus the abutting relationship of the four portions of the valve cavity 55A with the four vents of the valve body 55 changes, so that the communication relationship of the four vents may be changed.

Thus, the reversing valve 50 may be configured such that when the valve body 58 is in the second vent position (as shown in fig. 5), the first vent port 51 and the third vent port 53 are located between the second seal ring 59B and the third seal ring 59C in the first direction D1, and the second vent port 52 and the fourth vent port 54 are located on the side of the third seal ring 59C near the valve body second end 55D in the first direction D1. Thus, as shown in fig. 5, the first air vent 51 and the third air vent 53 communicate through the third inner chamber 55G, and the second air vent 52 and the fourth air vent 54 communicate through the fourth inner chamber 55H. It will be appreciated that, inside the reversing valve, the air paths connecting the first air port 51 and the third air port 53 and the air paths connecting the second air port 52 and the fourth air port 54 are independent of each other and are not communicated with each other.

The reversing valve 50 is further configured such that when the valve body 58 is in the first vent position (as shown in fig. 6), the first seal ring 59A and the second seal ring 59B are located on both sides of the first vent port 51 in the first direction D1, respectively, the second vent port 52 and the third vent port 53 are located between the second seal ring 59B and the third seal ring 59C in the first direction D1, and the third seal ring 59C is located on the side of the fourth vent port 54 near the valve body first end 55C. Thus, as shown in fig. 6, the first vent 51 communicates with the fourth vent 54 through the second inner chamber 55F, the first through hole 58B, the spool inner chamber 58A, the second through hole 58C, and the fourth inner chamber 55H, and the second vent 52 communicates with the third vent 53 through the third inner chamber 55G. It will be appreciated that, inside the reversing valve, the air paths connecting the first air vent 51 and the fourth air vent 54 and the air paths connecting the second air vent 52 and the third air vent 53 are independent of each other and do not communicate with each other.

A specific implementation of the drive means 60 is described below.

As previously described, the driving device 60 is connected to and acts on the air flow reversing device 50 and the communication port opening and closing assembly 40. In the illustrated embodiment, the cooking appliance 100 is configured to: when the driving device 60 is in the ventilation operation state, the driving device 60 causes the communication port opening and closing assembly 40 to open the communication port 17 (as shown in fig. 5), and causes the first ventilation port 51 to communicate with the third ventilation port 53, and the second ventilation port 52 to communicate with the fourth ventilation port 54 (as shown in fig. 7 and 9); when the driving device 60 is in the sealed operation state, the driving device 60 causes the communication port opening and closing assembly 40 to close the communication port 17 (as shown in fig. 6), and causes the first air port 51 to communicate with the fourth air port 54, and the second air port 52 to communicate with the third air port 53 (as shown in fig. 8 and 10).

As shown in fig. 3 and 5, when the driving device 60 is in the ventilating operation state, the communication port 17 is opened, and the cooking space 32 is in a first air pressure state in communication with the steam valve 90, i.e., in communication with the external environment. At this time, the first air vent 51 communicates with the third air vent 53, and the second air vent 52 communicates with the fourth air vent 54, and if the air pump 95 is operated, the air pump 95 draws in ambient air through the steam valve inner chamber 92 and discharges the ambient air into the cooking space 32, so that the cooking space 32 can be cooled by the ambient air. As shown in fig. 4 and 6, when the driving device 60 is in the sealed operation state, the communication port 17 is blocked, and the cooking space 32 is blocked from the steam valve 90, that is, from the external environment. At this time, the first air vent 51 communicates with the fourth air vent 54, the second air vent 52 communicates with the third air vent 53, and if the air pump 95 is operated, the air pump 95 pumps out the air in the cooking space 32 and then discharges the air to the environment through the steam valve inner chamber 92, thereby reducing the air pressure in the cooking space 32, that is, making the negative pressure in the cooking space 32 with respect to the environment, in a second air pressure state.

As shown in fig. 9 and 10, in some embodiments of the present application, the driving apparatus 60 includes a first driving assembly 80 and a second driving assembly 70 disposed corresponding thereto 80. The first drive assembly 80 is for placement to a cover 10 (e.g., a liner cover 12) of a cooking appliance 100. The second driving assembly 70 is also used to be provided to the cover 10 of the cooking appliance 100, and interacts with the first driving assembly 80. The second drive assembly 70 is configured to be movable in a second direction D2 relative to the first drive assembly 80 under the influence of the first drive assembly 80. The second driving unit 70 is connected to the communication opening/closing unit 40 (for example, the second member of the cooking appliance 100) and the air flow reversing device 50 (for example, the first member of the cooking appliance 100). The second drive assembly 70 has a connection 76 and a first transmission surface 75. The connection 76 is for connecting to and acting on the second component. The first drive surface 75 is for connection to and for acting on the first component. Wherein the first transmission surface 75 has a first transmission surface first end 75A and a first transmission surface second end 75B disposed opposite in the second direction D2, the position of the first transmission surface first end 75A in the first direction D1 being different from the position of the first transmission surface second end 75B in the first direction D1.

Specifically, one of the functions of the driving device 60 is to implement the movement of the valve core 56 in the air flow reversing device 50 in the first geometric dimension, and the other function is to implement the movement of the push rod 41 in the communication opening and closing assembly 40 in the second geometric dimension, and the two movements need to be coordinated.

As shown in fig. 3 and 4, the cooking appliance 100 includes a link mechanism 61. The connection portion 76 is connected to the communication port opening and closing assembly 40 through the link mechanism 61. The link mechanism 61 includes a link 62. The link 62 has oppositely disposed link first and second ends 63, 64, with the link second end 64 being connected to and acting upon the push rod sleeve 42. As shown in fig. 9 and 10, the connecting portion 76 changes the position of the link second end 64 in the vertical direction by changing the position of the link first end 63 in the vertical direction.

Preferably, as shown in fig. 3 and 4, the link 62 is configured to be rotatable about a link rotation axis, wherein the link rotation axis extends in a horizontal direction. For example, the link 62 is mounted to the liner cap 12 by a horizontal second pin 66, with the link 62 being rotatable about the second pin 66 relative to the liner cap 12, i.e., the axis of the second pin 66 is the link rotation axis. The connecting portion 76 changes the position of the link second end 64 in the vertical direction by changing the position of the link first end 63 in the vertical direction to rotate the link 62.

The cooking appliance 100 is configured such that when the driving device 60 is in the sealed operation state, the link 62 is located at the first link position, so that the push rod 41 is located at the blocking position; when the driving device 60 is in the ventilating operation state, the link 62 is located at the second link position so that the push rod 41 is located at the open position. The drive means 60 drives the link 62 between a first link position and a second link position.

The cooking appliance 100 is configured to: when the 80 drive 60 is in the sealed operating condition, the first drive surface 79 acts on the valve spool 56 to compress the valve spool spring 57 to place the valve spool 56 in the first vent position; the connecting portion 76 supports the first end 63 of the connecting rod to a higher position, so that the second end 64 of the connecting rod is located at a relatively lower position, and drives the push rod 41 to be located at a relatively lower blocking position, and the air pump 95 pumps air into the cooking space 32, so that the cooking space 32 is in a second air pressure state. When 80 the drive 60 is in the vent mode, the first drive surface 75 acts on the valve spool 56 to release the valve spool spring 57 to place the valve spool 56 in the second vent position; the connecting portion 76 supports the link first end 63 to a lower position such that the link second end 64 is relatively high, such that the push rod 41 is in a relatively high open position.

In some embodiments of the present application, the first drive assembly 80 and the second drive assembly 70 are configured to be aligned along the second direction D2. One of the first drive assembly 80 and the second drive assembly 70 comprises an electromagnet, and the other of the first drive assembly 80 and the second drive assembly 70 comprises a magnetic substance. For example, the first drive assembly 80 is located above the second drive assembly 70 and is secured to the liner cap 12. One of the first drive assembly 80 and the second drive assembly 70 includes an electromagnet 77 and the other includes a magnetic substance. When the electromagnet 77 is energized, the first drive assembly 80 may attract the second drive assembly 70 upward, thereby raising the first link end 63 (as shown in fig. 10 and 16). When the electromagnet 77 is de-energized, the second drive assembly 70 may return to its original position by its own weight (as shown in fig. 9 and 15). It will be appreciated that the electromagnet 77 is electrically connected to the control device to operate under the control of the control device.

Specifically, as shown in fig. 11 and 12, the second driving assembly 70 includes a second driving assembly body 71, a connecting portion 76, and a slope portion 72. The second driving assembly body 71 is for being provided to the cover 10 of the cooking appliance 100, and is movable in the second direction D2 with respect to the first driving assembly 80. The second driving assembly body 71 is provided with an electromagnet 77 or a magnetic substance. The connection portion 76 is connected to the second drive assembly body 71 while also connecting the link first end 63. The ramp portion 72 is also connected to the second drive assembly body 71, the ramp portion 72 including a first transmission surface 75.

The connection portion 76 is provided as a connection pin 76, for example. The inclined surface portion 72 is configured in a triangular prism shape, an axis of which is perpendicular to the second direction D2, and one side surface of which is connected to the second driving assembly body 71. The other two sides of the triangular prism serve as the first transmission surface. It will be appreciated that the other two sides of the ramp portion 72 are inclined with respect to the horizontal plane, the second direction D2 and the first direction D1. Alternatively, the ramp portion 72 acts on the spool 56 either above or below the spool 56.

In the first embodiment of the present application, the inclined surface portion 72 acts on the spool 56 below the spool 56, and as shown in fig. 9 and 10, the inclined upward side surface 75 of the triangular prism of the inclined surface portion 72 is a first transmission surface, and the first transmission surface 75 is provided below the spool 56 to contact the spool 56. The lower end 75A of the first drive surface 75 is closer to the reversing valve 50 than the upper end 75B of the first drive surface 75. As shown in fig. 10, when the second drive assembly 70 is raised (the drive device 60 is in the sealed operating condition), the lower end 75A of the first transmission surface 75 acts on the valve spool 56, moving the valve spool 56 to the first venting position. As shown in fig. 9, when the second drive assembly 70 is lowered (the drive device 60 is in the vent operational state), the high end 75B of the first transmission surface 75 contacts the valve spool 56, and the valve spool 56 moves to the second vent position.

Preferably, the connection portion 76 and the inclined surface portion 72 are provided to opposite sides of the second driving assembly body 71, respectively.

In the illustrated embodiment, the first drive assembly 80 includes the magnetic substance and the second drive assembly 70 includes the electromagnet 77. For example, the second driving assembly body 71 is provided with a body groove 73, and an electromagnet 77 is provided in the body groove 73 and fixed by a bolt 74. The walls of the body recess 73 are also provided with notches 71A for receiving the plugs 77A of the electromagnets 77.

In some embodiments of the present application, the first drive surface 75 is configured as a planar surface. The first transmission surface 75 can provide a stable active surface when the second drive assembly 70 is moved, thereby ensuring that the state of the second component is switched stable.

The first transmission surface 75 is perpendicular to a plane defined by the first direction D1 and the second direction D2. So that the second driving assembly 70 can stably maintain the state after being switched to the predetermined state.

In some embodiments of the present application, the driving device 60 further includes a first guide 78, the first guide 78 being disposed on the second driving assembly 70 and extending along the second direction D2, for cooperating with the second guide of the cooking appliance 100 to guide the second driving assembly 70 to move along the second direction D2. The first guide 78 may be configured as a guide rail or a guide groove. For example, a slide rail extending in the second direction D2 is provided in one of the second driving assembly 70 and the cover 10, and a slide groove extending in the second direction D2 is provided in the other of the second driving assembly 70 and the cover 10, the slide rail being provided in the slide groove and movable relative thereto in the second direction D2. For example, as shown in fig. 11, the second driving assembly 70 is provided with a slide rail 78, and the slide rail 78 extends along the second direction D2. The liner cap 12 is provided with a slide slot (not shown) that mates with the slide rail 78 for receiving the slide rail 78. Accordingly, the second driving assembly 70 can stably move up and down in the second direction D2 relative to the liner cover 12 under the guiding action of the sliding rail 78 and the sliding groove.

As described above, the first driving unit 80 and the second driving unit 70 can move relatively, and thus the communication opening and closing unit 40 and the air flow reversing device 50 are linked to operate.

Several embodiments of the first drive assembly 80 and the second drive assembly 70 are described below.

As shown in fig. 13 and 14, the first driving assembly 80 includes an iron block 81, a bracket 82, and a bracket cover 83. The iron block 81 is for attracting the electromagnet 77. The stand cover 83 is for being provided to the cover body 10 of the cooking appliance 100. The bracket 82 connects the bracket cover 83 and the iron block 81 at the same time such that the iron block 81 is not movable with respect to the bracket cover 83. For example, the bracket 82 has an inner cavity for receiving the iron block 81. For example, the bracket 82 and the bracket cover 83 each include a cylindrical structure, and the two can be connected to each other by a screw pair, thereby firmly mounting the iron block 81 on the lining cover 12.

In the second embodiment of the present application, the first air vent 51 of the direction valve 50 is communicated with the air pump air inlet 93, and the second air vent 52 of the direction valve 50 is communicated with the air pump air outlet 94. At this time, as shown in fig. 15 and 16, the inclined surface portion 72 is provided to act on the valve body 56 above the valve body 56. I.e. the obliquely downward side 79 of the triangular prism of the ramp portion 72 in fig. 11 and 12 is used as the first transmission surface. The first drive surface 79 is disposed above the spool 56 in contact with the spool 56. The upper end 79B of the first drive surface 79 is closer to the reversing valve than the lower end 79A of the first drive surface 79. As shown in fig. 15, when the second drive assembly 70 is lowered (the drive device 60 is in the vent mode), the high end 79B of the first transmission surface 79 acts on the valve spool 56 to move the valve spool 56 to the first vent position. As shown in fig. 16, when the second drive assembly 70 is raised (the drive device 60 is in the sealed operating state), the lower end 75A of the first transmission surface 79 contacts the valve spool 56, and the valve spool 56 moves to the second vent position.

It will be appreciated that it is also possible to communicate the third air port 53 of the reversing valve 50 with the steam valve 90 and the fourth air port 54 of the reversing valve 50 with the air inlet and outlet port 18, while the first and second air pressure conditions of the cooking space 32 will be achieved as well, using the obliquely downward side 79 of the inclined surface portion 72 as the first transmission surface.

It will be appreciated that it is also possible to communicate the first air vent 51 of the reversing valve 50 with the air pump air inlet 93, the second air vent 52 of the reversing valve 50 with the air pump air outlet 94, and simultaneously communicate the third air vent 53 of the reversing valve 50 with the steam valve 90, and the fourth air vent 54 of the reversing valve 50 with the air inlet and outlet 18, while still using the side surface 75 of the bevel portion 72 as a first transmission surface, the first air pressure state and the second air pressure state of the cooking space 32 will be achieved as well.

In some embodiments of the application, not shown, the first drive assembly 80 includes a motor for driving the screw in rotation and a screw extending in the second direction D2. The second drive assembly 70 includes reversing threads for mating with the external threads of the lead screw. The power provided by the motor is transmitted to the driving piece through the lead screw, and the transmission is efficient.

It will be appreciated that the motor is electrically connected to the control means to operate under the control of the control means. In this embodiment, the motor converts the rotational motion of the motor into a linear motion through a screw and thread mechanism, and transmits the linear motion to the second driving assembly 70. The second drive assembly 70 has a connection 76 and a first transmission surface. The second driving assembly 70 moves along the D2 direction under the action of the first driving assembly 80, so that the connecting portion 76 supports the first end 63 of the connecting rod to different working positions, and the first transmission surface pushes the valve core 56 to different working positions, thereby realizing state switching of the driving device 60.

In other embodiments of the application, not shown, the first drive assembly 80 comprises a motor for driving the rotation of the gear and a gear, the rotation axis of the gear being perpendicular to the second direction D2. The second drive assembly 70 includes a rack for meshing with a pinion extending in a second direction D2. The power provided by the motor is transmitted to the driving piece through the gear rack assembly, and the transmission is efficient.

It will be appreciated that the motor is electrically connected to the control means to operate under the control of the control means. In this embodiment, the motor converts the rotational motion of the motor into a linear motion through a rack and pinion mechanism, and transmits the linear motion to the second driving assembly 70. The rack is fixedly connected to the second drive assembly 70. The second drive assembly 70 has a connection 76 and a first transmission surface. The second driving assembly 70 moves along the direction D2 under the action of the first driving assembly 80, so that the connecting portion 76 supports the first end 63 of the connecting rod to different working positions, and the first transmission surface 79 pushes the valve core 56 to different working positions, thereby realizing state switching of the driving device 60.

The cooking process of the cooking appliance 100 sequentially includes the following steps:

a water absorbing process for soaking the solid food material in warm water to absorb water before the food material in the pot liner 31 reaches the boiling temperature;

A heating step for heating the food material in the inner container 31 to a boiling temperature;

a boiling maintaining step for maintaining the boiling temperature of the food material in the pot liner 31;

a rice stewing process for heating the food material in the inner pot 31 for a short time in the case that the free moisture is almost not contained in the inner pot 31;

a heat preservation process for preserving heat of the food in the pot container 31 after cooking the cooked food.

Preferably, in the water absorbing process, the cooking appliance 100 is configured to perform the following steps:

s21, the reversing assembly 60 is in a sealed working state, the air pump 95 is operated for a first water absorption preset working time period t21, so that air is pumped from the cooking space 32, negative pressure is generated in the cooking space 32, and the air pump is in a second air pressure state;

s22, the reversing assembly 60 is in a ventilation working state, the air pump 95 stops working and the second water absorption preset working time period t22 is reached, so that the cooking space 32 is restored to normal pressure and is in a first air pressure state;

s23, repeating the steps S21 and S22 until the preset water absorption time period is reached or the temperature value sensed by the temperature sensor (the lower temperature sensor or the top temperature sensor) reaches the preset water absorption temperature T2.

In the water suction process, the cooking space 32 is repeatedly vacuumized, the internal pressure of the cooking cavity is changed rapidly, the rice can be rolled and absorbed water rapidly, the rice grains are heated more uniformly, the rice grain gelatinization is facilitated, the rice is cooked thoroughly, and the rice is inflated more. It is considered that the change in air pressure causes the rice grains to move relatively or collide with each other, so that gaps are formed between the rice grains, and the rice is fluffy.

Preferably, the first preset operating period t21 for water absorption is 20 to 120 seconds. More preferably, the first preset operating period t21 of water absorption is 20 to 60 seconds. Preferably, in step S21, after the air pump 95 is operated for the first water suction preset operation period t21, the negative pressure of the cooking space 32 is-5 to-20 kPa (i.e., 5 to 20kPa lower than the ambient air pressure). Preferably, the second preset operating period t22 for water absorption is 20 to 120 seconds. More preferably, the second preset operating period t22 of water absorption is 20 to 60 seconds. Preferably, the preset water absorption temperature T2 does not exceed 90 ℃. More preferably, the preset water absorption temperature T2 is 30 to 90 ℃.

Preferably, during the heating process and/or the boiling maintaining process, the cooking appliance 100 is configured to put the reversing assembly 60 in a ventilating operation state and to operate the air pump 95 to blow cold air into the cooking space 32, so that it is possible to prevent overflow.

Preferably, in the rice stewing process, the cooking appliance 100 is configured to perform the following steps:

s41, enabling the reversing assembly 60 to be in a sealing working state, enabling the air pump 95 to work for a first stewing preset working time period t41 so as to suck air from the cooking space 32 and enable the cooking space 32 to generate negative pressure;

s42, the reversing assembly 60 is in a ventilation working state, and the air pump 95 is operated for a second rice stewing preset working time period t42 so as to blow air into the cooking space 32, so that the temperature of the cooking space 32 is reduced;

S43, repeating the steps S41 and S42 until the preset stewing time period T4 is reached or the temperature value sensed by the temperature sensor (the lower temperature sensor or the top temperature sensor) reaches the preset stewing temperature T4.

In the rice stewing process, heat in the inner part of the pot liner 31 is taken away by air suction, cold air is further blown into the pot liner 31 by air blowing, and hot air is discharged. Because the heat conductivity coefficients of the rice and the pot liner 31 are different, a temperature difference is formed between the rice and the pot liner 31, and the rapidly-changed temperature difference can cause the expansion and contraction of the rice, so that the rice and the pot liner 31 form a critical separation or separation state, and the problem of sticking to the pot can be solved. Accordingly, bladder 31 may be configured without a non-stick coating on the inner surface.

Preferably, the first braised rice preset operation time period t41 is 20 to 120 seconds. More preferably, the first braised rice preset operation time period t41 is 20 to 60 seconds. Preferably, in step S41, after the air pump is operated for a preset operation time period t41 for the first braised rice, the negative pressure of the cooking space is-5 to-20 kPa. Preferably, the second braised rice preset operation time t42 is 20 to 120 seconds. More preferably, the second braised rice preset operation period t42 is 20 to 60 seconds. Preferably, the preset rice stewing temperature T4 is 90 ℃ to 103 ℃. Preferably, the preset braised time period t4 is 4 to 10 minutes.

In the heat-retaining process, the cooking appliance 100 is preferably configured to perform the following steps:

s51, the reversing assembly 60 is in a sealed working state, and the air pump 95 is operated for a first heat preservation preset working time period t51 so as to pump air from the cooking space 32 to generate negative pressure in the cooking space 32;

s52, the reversing assembly 60 is in a ventilation working state, the air pump 95 is operated for a second heat preservation preset working time period t52, and air is blown into the cooking space 32, so that the temperature of the cooking space 32 is reduced;

s53, repeating the steps S51 and S52 until the temperature value sensed by the temperature sensor is less than or equal to the preset heat preservation temperature T5.

In the heat-insulating process, heat inside the inner container 31 is taken away by air suction, cool air is further blown into the inner container 31 by blowing, and hot air is discharged at the same time, similarly to the rice stewing process. Because the heat conductivity coefficients of the rice and the pot liner 31 are different, a temperature difference is formed between the rice and the pot liner 31, and the rapidly-changed temperature difference can cause the expansion and contraction of the rice, so that the rice and the pot liner 31 form a critical separation or separation state, and the problem of sticking to the pot can be solved. Accordingly, bladder 31 may be configured without a non-stick coating on the inner surface.

Preferably, the first heat preservation preset operating time period t51 is 20 to 120 seconds. More preferably, the first heat preservation preset operating time period t51 is 20 to 60 seconds. Preferably, in step S51, after the air pump 95 is operated for the first heat-preserving preset operation period t51, the negative pressure of the cooking space 32 is-5 to-20 kPa. Preferably, the second heat preservation preset operating time period t52 is 20 to 120 seconds. More preferably, the second thermal insulation preset operating time period t52 is 20 to 60 seconds. Preferably, the preset soak temperature T5 is 65 ℃ to 75 ℃.

Preferably, in the heat-insulating process, the cooking appliance 100 is configured to put the reversing assembly 60 in a sealed operation state and to operate the air pump 95 to form a negative pressure in the cooking space 32. That is, the cooking space 32 is set to negative pressure in the heat preservation process, which is advantageous for keeping rice fresh. The cooking appliance 100 may periodically start the air pump 95 according to the sealing property of the product, and intermittently pump air to maintain the negative pressure in the cooking space 32.

In the heat-insulating step, either or both of the operations of steps S51, S52, and S53 and the operation of simply pumping negative pressure may be performed. In the case where both are performed, the operations of steps S51, S52 and S53 may be performed first, and the operation of simply evacuating the air may be performed after the temperature sensed by the temperature sensor reaches the preset soak temperature T5.

The processes, steps described in all the preferred embodiments described above are examples only. Unless adverse effects occur, various processing operations may be performed in an order different from that of the above-described flow. The step sequence of the above-mentioned flow can also be added, combined or deleted according to the actual requirement.

In understanding the scope of the present application, the term "comprising" and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated features, elements, components, groups, integers, and/or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and/or steps. This concept also applies to words having similar meanings such as the terms "including", "having" and their derivatives.

The terms "attached" or "attached" as used herein include: a construction in which an element is directly secured to another element by directly securing the element to the other element; a configuration for indirectly securing an element to another element by securing the element to an intermediate member, which in turn is secured to the other element; and the construction in which one element is integral with another element, i.e., one element is substantially part of the other element. The definition also applies to words having similar meanings such as the terms, "connected," "coupled," "mounted," "adhered," "secured" and their derivatives. Finally, terms of degree such as "substantially", "about" and "approximately" as used herein mean a deviation amount modified such that the end result is not significantly changed.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the application. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present application has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the application to the embodiments described. In addition, it will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present application, which fall within the scope of the claimed application.

Claims (20)

1. A driving apparatus, applied to a cooking appliance, for simultaneously driving a first part of the cooking appliance to move in a first direction and driving a second part of the cooking appliance to move in a second direction, wherein the first direction is different from the second direction, the driving apparatus comprising:

a first driving assembly for being provided to the cooking appliance; and

a second drive assembly for being provided to the cooking appliance and for interacting with the first drive assembly, the second drive assembly being configured to be movable in the second direction relative to the first drive assembly under the influence of the first drive assembly, the second drive assembly having a connecting portion and a first transmission surface having a first transmission surface first end and a first transmission surface second end disposed opposite in the second direction, the position of the first transmission surface first end in the first direction being different from the position of the first transmission surface second end in the first direction,

Wherein the connection portion is for connecting to and acting on the second component and the first transmission surface is for connecting to and acting on the first component.

2. The driving device according to claim 1, wherein,

the first driving component and the second driving component are used for being arranged along the second direction,

one of the first driving assembly and the second driving assembly comprises an electromagnet, and the other of the first driving assembly and the second driving assembly comprises a magnetic substance.

3. The drive of claim 2, wherein the second drive assembly comprises:

a second driving assembly body for being provided to the cooking appliance and movable in the second direction with respect to the first driving assembly, the second driving assembly body being provided with the electromagnet or the magnetic substance;

the connecting part is connected to the second driving assembly main body;

a ramp portion connected to the second drive assembly body, the ramp portion including the first transmission surface.

4. A driving device according to claim 3, wherein the slope portion is configured in a triangular prism shape, an axis of the triangular prism being perpendicular to the second direction, one side face of the triangular prism being connected to the second driving assembly body, the other two side faces of the triangular prism serving as the first transmission surface.

5. A driving device according to claim 3, wherein the connecting portion and the inclined surface are provided to opposite sides of the second driving assembly body, respectively.

6. A drive arrangement as claimed in claim 3, wherein the first drive assembly comprises the magnetic substance and the second drive assembly comprises the electromagnet.

7. The drive of claim 6, wherein the second drive assembly body is provided with a body recess, the electromagnet being disposed in the body recess.

8. The driving device according to claim 7, wherein the wall of the main body groove is provided with a notch for receiving a plug of the electromagnet.

9. The drive of claim 6, wherein the first drive assembly comprises:

the iron block is used for attracting the electromagnet of the second driving assembly mutually;

a bracket cover for being provided to the cooking appliance; and

and a bracket connected to the bracket cover and the iron block such that the iron block is not movable with respect to the bracket cover.

10. The driving device according to claim 9, wherein,

The bracket cover is connected with the bracket through a screw pair, and/or

The bracket has an interior cavity for receiving the iron block.

11. The driving device according to claim 1, wherein,

the first driving assembly comprises a motor and a screw, the motor is used for driving the screw to rotate, the screw extends along the second direction,

the second drive assembly includes a reversing thread for mating with the external thread of the lead screw.

12. The driving device according to claim 1, wherein,

the first drive assembly includes a motor and a gear, the motor for driving rotation of the gear, the gear having an axis of rotation perpendicular to the second direction,

the second drive assembly includes a rack for meshing with the gear, the rack extending in the second direction.

13. The drive arrangement according to any one of claims 1 to 12, characterized in that the first transmission surface is configured as a plane.

14. The drive of claim 13, wherein the first transmission surface is perpendicular to a plane defined by the first direction and the second direction.

15. The drive arrangement of any one of claims 1 to 12, further comprising a first guide portion disposed to the second drive assembly and extending in the second direction for cooperating with a second guide portion of the cooking appliance to guide movement of the second drive assembly in the second direction.

16. The drive of claim 15, wherein the first guide is configured as a rail or a guideway.

17. The drive arrangement according to any one of claims 1 to 12, wherein the first direction is perpendicular to the second direction.

18. A cooking appliance, comprising:

a first member configured to be movable in a first direction;

a second member configured to be movable in a second direction; and

a drive arrangement according to any one of claims 1 to 17, wherein the first transmission surface is for connection to and action on the first component and the connection is for connection to and action on the second component such that the first component co-operates with the second component.

19. A cooking appliance, comprising:

the pot body is used for accommodating and heating food materials;

the cover body is arranged on the cooker body in an openable and closable manner so as to form a cooking space between the cover body and the cooker body, and the cover body is provided with an air inlet and an air outlet which are used for communicating the cooking space and a communication port which is used for communicating the cooking space with the external environment;

the communication port opening and closing assembly is arranged on the cover body and can move along a second direction relative to the cover body and is used for opening or blocking the communication port;

The air channel structure comprises an air flow generating device and an air flow reversing device connected with the air flow generating device through a pipeline, and the air flow reversing device is movable relative to the cover body along a first direction and is used for realizing air flow reversing in the air channel structure, one end of the air channel structure is communicated with the air inlet and the air outlet, and the other end of the air channel structure is communicated with the external environment; and

a drive arrangement according to any one of claims 1 to 17, wherein the first transmission surface is for connection to and action on the airflow reversing device, and the connection is for connection to and action on the communication port opening and closing assembly.

20. The cooking device of claim 19, wherein in a state in which the lid covers the pot body,

the first direction is a horizontal direction and/or the second direction is a vertical direction.