CN217977644U

CN217977644U - Electromagnetic exhaust valve, upper cover and cooking utensil

Info

Publication number: CN217977644U
Application number: CN202222060965.2U
Authority: CN
Inventors: 冷炯
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-06
Anticipated expiration: 2032-08-04

Abstract

The utility model provides an electromagnetism discharge valve, upper cover and cooking utensil, electromagnetism discharge valve includes: the valve body is provided with a mounting hole penetrating through the upper end surface and the lower end surface of the valve body, and the valve body is provided with a magnetic part arranged on the periphery of the mounting hole; the valve core, the mounting hole is worn to locate to the case vertically movably, the case has air vent and the inlet port that is linked together, the air vent is along vertical extension and run through the upper end of case, the inlet port sets up on the lateral wall of the lower extreme of case, the lower extreme of case is provided with the sealing member that is located the below of inlet port, the case is connected with the signal line, the case has the come-up position of circular telegram state and the position of sinking of outage state, when the case was located the come-up position, sealing member and the sealed cooperation of valve body, when the case was located the position of sinking, the inlet port was exposed in the below of valve body. Through the technical scheme provided by the application, the problem that the switching valve in the related art is complex in structure can be solved.

Description

Electromagnetic exhaust valve, upper cover and cooking utensil

Technical Field

The utility model relates to a cooking utensil technical field particularly, relates to an electromagnetism discharge valve, upper cover and cooking utensil.

Background

The electric pressure cooker is a cooking appliance commonly used in life, and can perform two cooking modes of pressure cooking and normal pressure cooking. In the pressure cooking mode, the water can reach higher temperature without boiling by the principle that the boiling point of the liquid is increased under higher air pressure, so that the efficiency of stewing food is accelerated.

In the related technology, the switching valve is arranged on the upper cover of the electric pressure cooker, the switching valve can realize good sealing performance of the electric pressure cooker in a pressure cooking state so as to achieve the effect of cooking by pressure rise, and the inside and outside gas exchange of the electric pressure cooker is realized in a normal pressure cooking state.

However, the switching valve in the related art has a problem of a complicated structure.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electromagnetism discharge valve, upper cover and cooking utensil to there is the problem that the structure is complicated in the diverter valve of solving among the correlation technique.

According to the utility model discloses an aspect provides an electromagnetism discharge valve, electromagnetism discharge valve includes: the valve body is provided with a mounting hole penetrating through the upper end surface and the lower end surface of the valve body, and the valve body is provided with a magnetic part arranged on the periphery of the mounting hole; the case, the mounting hole is worn to locate by case vertically movablely, the case has air vent and the inlet port that is linked together, the air vent is along vertical extension and run through the upper end of case, the inlet port sets up on the lateral wall of the lower extreme of case, the lower extreme of case is provided with the sealing member that is located the below of inlet port, the case is connected with the signal line, the case has the come-up position of on-state and the position of sinking of off-state, when the case is located the come-up position, sealing member and the sealed cooperation of valve body, when the case is located the position of sinking, the inlet port exposes in the below of valve body.

Use the technical scheme of the utility model, solenoid vent valve includes valve body and case, install solenoid vent valve in cooking utensil's upper cover, when needs pressure cooking, utilize the signal line to be the case circular telegram, because be provided with magnetism portion on the valve body, under the effect of magnetism portion after the case circular telegram, can produce the ampere force, make the case be located the come-up position of on-state, and then make sealing member and the sealed cooperation of valve body, because the sealing member is located the below of inlet port, thereby gas in the pot can not get into the air vent through the inlet port and discharge, realize that the pressure in the pot rises. When the cooker needs normal pressure cooking, the valve core is powered off and is located at the sinking position in the power-off state, the air inlet hole is exposed below the valve body, and gas in the cooker body enters the air vent through the air inlet hole and is discharged, so that the pressure in the cooker body is in the normal pressure state. Because the electromagnetic exhaust valve comprises a valve body and a valve core, and the switching between pressure cooking and normal-pressure cooking is realized by electrifying and powering off the valve core, the structure of the electromagnetic exhaust valve is simple.

Further, the valve body includes the shell, and the mounting hole runs through the upper and lower terminal surface setting of shell, and magnetism portion sets up in the shell. The shell can be used for protecting the magnetic part, so that the magnetic part is prevented from being damaged, and the magnetic part can generate a stable magnetic field.

Further, the magnetic part includes a magnet. The magnet is used as the magnetic part, a stable magnetic field can be formed by using the magnetic field of the magnet, no external parts are needed, and the magnetic part has the advantage of simple structure.

Furthermore, the upper end of the valve core is provided with an annular boss, and when the valve core is located at a sinking position, the lower surface of the annular boss is abutted to the upper end surface of the valve body. The annular boss can limit the valve core, so that when the valve core is positioned at a sinking position, the air inlet hole can be ensured to be positioned below the valve body, and the valve core can not slide out of the mounting hole.

Furthermore, the sealing member includes the sealing washer, is provided with the ring channel that is located the inlet port below on the lateral wall of case, and the ring channel is located to the sealing washer cover. Adopt the sealing washer can make and form sealedly between case and the valve body, and then when the case was located the come-up position, gas can not get into the inlet port and discharge through the air vent through the interval between case and the valve body.

According to the utility model discloses an on the other hand provides an upper cover, and the upper cover includes: a cover body; the electromagnetic exhaust valve, electromagnetic exhaust valve's valve body wears to locate the lid, and electromagnetic exhaust valve is the electromagnetic exhaust valve that the aforesaid provided. By adopting the upper cover with the structure, when pressure cooking is needed, the valve core is electrified by utilizing the signal wire, the magnetic part is arranged on the valve body, and after the valve core is electrified, ampere force can be generated under the action of the magnetic part, so that the valve core is positioned at the floating position in the electrified state, and further the sealing element is in sealing fit with the valve body. When the cooker needs normal pressure cooking, the valve core is powered off and is located at the sinking position in the power-off state, the air inlet hole is exposed below the valve body, and gas in the cooker body enters the air vent through the air inlet hole and is discharged, so that the pressure in the cooker body is in the normal pressure state.

Further, the lid is including sheltering from the lid and being located the metal cover that shelters from the below of lid, and the lower surface that shelters from the lid is provided with the protruding muscle of annular, and the lower surface of the protruding muscle of annular and the up end looks butt of valve body, the lower extreme and the metal cover of valve body are connected, shelter from the lid and have and dodge the hole, and the hole is dodged to the movably wearing to locate of electromagnetism discharge valve's case. Can seal the mating reaction with the formation of valve body through the protruding muscle of annular, prevent from in the air vent combustion gas gets into the lid, and then prevent that the part in the lid from receiving the damage. And the annular convex rib can limit the valve body, so that the valve body is stably fixed in the cover body.

The upper cover further comprises a baking assembly, the baking assembly comprises a motor, fan blades and a heating wire, the fan blades are located below the cover body, the heating wire is located below the fan blades, the motor is in driving connection with the fan blades, and the baking assembly can be used for baking and cooking the cooking utensil so that the cooking utensil can cook foods with different flavors; the upper cover also comprises a pressure limiting valve arranged on the cover body, pressure cooking of the cooking utensil can be realized by utilizing the pressure limiting valve, and then the pressure in the cooker body can be improved, so that the stewing efficiency of food can be accelerated.

According to another aspect of the present invention, there is provided a cooking appliance, including: the power supply board is arranged in the pot body; the upper cover can be arranged on the pot body in an opening and closing mode and comprises the upper cover, and a signal line of the electromagnetic exhaust valve of the upper cover is electrically connected with the power panel. By adopting the cooking utensil with the structure, the switching between the exhaust state and the sealing state of the valve core can be realized by controlling the electromagnetic exhaust valve through the power supply board, so that the state of the air inlet and the exhaust state of the upper cover does not need to be manually switched, the condition that a consumer forgets to manually switch the air inlet of the upper cover into the open state can be avoided, and the cooking effect under the baking mode cannot be influenced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of an electromagnetic exhaust valve provided by an embodiment of the present invention;

fig. 2 is a sectional view of a cooking appliance in a baking cooking mode according to an embodiment of the present invention;

FIG. 3 shows a partial enlarged view at A in FIG. 2;

fig. 4 is a cross-sectional view illustrating a cooking appliance in a pressure cooking mode according to an embodiment of the present invention;

FIG. 5 shows a partial enlarged view at B in FIG. 4;

fig. 6 shows a schematic structural diagram of a cooking appliance provided by an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a valve body; 12. a magnetic part; 13. a housing; 131. a top plate; 132. a base plate; 133. a side plate;

20. a valve core; 21. a vent hole; 22. an air inlet; 23. a seal member; 231. a seal ring; 24. a signal line; 25. an annular boss; 26. an annular groove;

30. an upper cover; 31. a cover body; 311. an annular convex rib; 312. a shielding cover; 3121. avoiding holes; 313. a metal cover; 32. an electromagnetic exhaust valve; 33. a baking assembly; 331. a motor; 332. a fan blade; 333. a heater;

40. and (4) a pot body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an electromagnetic exhaust valve, which includes a valve body 10 and a valve core 20, wherein the valve body 10 has a mounting hole penetrating through upper and lower end surfaces thereof, and the valve body 10 has a magnetic portion 12 disposed at an outer periphery of the mounting hole; the valve core 20 can vertically movably penetrate through the mounting hole, the valve core 20 is provided with a vent hole 21 and an air inlet hole 22 which are communicated, the vent hole 21 vertically extends and penetrates through the upper end of the valve core 20, the air inlet hole 22 is arranged on the side wall of the lower end of the valve core 20, a sealing piece 23 positioned below the air inlet hole 22 is arranged at the lower end of the valve core 20, the valve core 20 is connected with a signal wire 24, the valve core 20 is provided with a floating position in a power-on state and a sinking position in a power-off state, when the valve core 20 is positioned at the floating position, the sealing piece 23 is in sealing fit with the valve body 10, and when the valve core 20 is positioned at the sinking position, the air inlet hole 22 is exposed below the valve body 10.

Use the technical scheme of the utility model, electromagnetism discharge valve includes valve body 10 and case 20, install electromagnetism discharge valve in cooking utensil's upper cover, when needs pressure cooking, utilize signal line 24 to be case 20 circular telegram, because be provided with magnetism portion 12 on the valve body 10, under the effect of magnetism portion 12 behind the case 20 circular telegram, can produce ampere force, make case 20 be located the come-up position of on-state, and then make sealing member 23 and valve body 10 seal fit, because sealing member 23 is located the below of inlet port 22, thereby gas in the pot can not get into air vent 21 and discharge through inlet port 22, realize that the pressure in the pot rises. When the normal pressure cooking is needed, the valve core 20 is powered off and is located at the sinking position of the power-off state, the air inlet hole 22 is exposed below the valve body 10, so that the gas in the pot body enters the vent hole 21 through the air inlet hole 22 and is discharged, and the pressure in the pot body is in the normal pressure state. The electromagnetic exhaust valve comprises a valve body 10 and a valve core 20, and the switching between pressure cooking and normal pressure cooking is realized by electrifying and cutting off the valve core 20, so that the structure of the electromagnetic exhaust valve is simple.

Specifically, since the magnetic portion 12 can generate a magnetic field, the valve element 20 can generate a directional current after being energized, and an ampere force that causes the valve element 20 to move upward can be generated by an action of the magnetic field on the charged charges in the valve element 20, so that the valve element 20 can be located at a floating position. When the valve core 20 is in the power-off state, the valve core 20 is not affected by ampere force and is located at the sinking position only under the action of self gravity.

When the valve core 20 is located at the floating position, the sealing member 23 is in sealing fit with the valve body 10, that is, the sealing member 23 is attached to the bottom wall of the valve body 10 to form a seal.

In actual use, when the valve core 20 is located at the floating position, the sealing member 23 may be in sealing engagement with the valve body 10 to enable the cooking utensil to be in a pressure cooking state. The sealing element 23 can also be attached to the lower surface of the cover body to form sealing fit, so that the cooking appliance is in a pressure cooking state.

As shown in fig. 1, the valve body 10 includes a housing 13, mounting holes are provided through upper and lower end surfaces of the housing 13, and the magnetic portion 12 is provided in the housing 13. The housing 13 can protect the magnetic part 12, so as to prevent the magnetic part 12 from being damaged, and the magnetic part 12 can generate a stable magnetic field.

In the present embodiment, the mounting hole is provided in the middle of the housing 13, and the magnetic part 12 is provided in the side of the housing 13.

As shown in fig. 1, the housing 13 includes a top plate 131, a bottom plate 132, and two side plates 133, upper ends of the two side plates 133 are connected to the top plate 131, lower ends of the two side plates 133 are connected to the bottom plate 132, the mounting holes respectively penetrate through the top plate 131 and the bottom plate 132, and the magnetic portion 12 is sandwiched between the top plate 131 and the bottom plate 132. The housing 13 having the above-described structure can fix the magnetic part 12 by the top plate 131 and the bottom plate 132, and further, the magnetic part 12 does not generate unstable magnetic field due to shaking.

In the present embodiment, the magnetic part 12 is disposed around the valve element 20 and inside the housing 13, the upper end of the magnetic part 12 is attached to the top plate 131, and the lower end of the magnetic part 12 is attached to the bottom plate 132. The valve body 20 passes through the top plate 131, the magnetic part 12, and the bottom plate 132 in this order.

Specifically, the magnetic part 12 includes a magnet. The use of the magnet as the magnetic part 12 has an advantage of being simple in structure, since a stable magnetic field can be formed by the magnetic field of the magnet, and no external parts are required.

In this embodiment, the magnet is made of ferrite.

As shown in fig. 1, an annular boss 25 is provided at the upper end of the valve body 20, and when the valve body 20 is located at the lowered position, the lower surface of the annular boss 25 abuts against the upper end surface of the valve body 10. The annular boss 25 can limit the valve core 20, so that when the valve core 20 is located at a sinking position, the air inlet hole can be ensured to be located below the valve body 10, and the valve core 20 cannot slide out of the mounting hole.

As shown in fig. 1, the sealing element 23 includes a sealing ring 231, an annular groove 26 located below the air inlet 22 is formed on a side wall of the valve core 20, and the sealing ring 231 is sleeved on the annular groove 26. The sealing ring 231 is used to seal the valve element 20 and the valve body 10, so that when the valve element 20 is at the floating position, gas will not enter the gas inlet 22 through the gap between the valve element 20 and the valve body 10 and will not be discharged through the vent hole 21.

In this embodiment, the annular groove 26 is used to limit the position of the sealing ring 231, so that when the valve element 20 is subjected to an ampere force and is located at a floating position, the sealing ring 231 cannot be separated from the valve element 20 due to an excessively small friction force between the sealing ring 231 and the valve element 20.

As shown in fig. 2 to 5, another embodiment of the present invention provides an upper cover, the upper cover 30 includes a cover body 31 and an electromagnetic exhaust valve 32, the valve body 10 of the electromagnetic exhaust valve 32 is inserted into the cover body 31, and the electromagnetic exhaust valve 32 is the electromagnetic exhaust valve provided above. By adopting the upper cover 30 with the structure, when pressure cooking is needed, the valve core 20 is electrified by using the signal wire 24, the magnetic part 12 is arranged on the valve body 10, after the valve core 20 is electrified, ampere force can be generated under the action of the magnetic part 12, the valve core 20 is positioned at the floating position in the electrified state, the sealing element 23 is in sealing fit with the valve body 10, and the sealing element 23 is positioned below the air inlet hole 22, so that gas in the cooker body cannot enter the air vent 21 through the air inlet hole 22 and is discharged, and the pressure in the cooker body is increased. When the normal pressure cooking is needed, the valve core 20 is powered off and is located at the sinking position of the power-off state, the air inlet hole 22 is exposed below the valve body 10, so that the gas in the pot body enters the vent hole 21 through the air inlet hole 22 and is discharged, and the pressure in the pot body is in the normal pressure state.

As shown in fig. 3 and 5, the cover body 31 includes a shielding cover 312 and a metal cover 313 located below the shielding cover 312, an annular convex rib 311 is disposed on a lower surface of the shielding cover 312, a lower surface of the annular convex rib 311 abuts against an upper end surface of the valve body 10, a lower end of the valve body 10 is connected to the metal cover 313, the shielding cover 312 has a avoiding hole 3121, and a valve core of the electromagnetic exhaust valve 32 movably penetrates through the avoiding hole 3121. The annular rib 311 can form a sealing engagement with the valve body 10, thereby preventing the gas discharged from the vent hole 21 from entering the lid body 31 and further preventing the components in the lid body 31 from being damaged. The annular rib 311 is used to limit the valve body 10, so that the valve body 10 is firmly fixed in the cover 31.

The electromagnetic exhaust valve 32 can be fixed by the space formed between the shielding cover 312 and the metal cover 313, and the valve core 20 can communicate the shielding cover 312 and the two sides of the metal cover 313, so that the cooking utensil can cook at normal pressure.

In the present embodiment, the lower surface of the annular rib 311 abuts against the upper surface of the top plate 131. The housing 13 is connected to the cover 31 by means of screw connections.

In the present embodiment, the components in the lid body 31 can be protected and shielded by the shield cover 312, and the components in the lid body 31 can be protected from damage. The metal cover 313 can isolate the high-temperature gas in the pot from the components in the cover 31, and can also prevent the components in the cover 31 from being damaged.

Specifically, the metal cover 313 has a through hole, the lower end of the valve core 20 is movably disposed through the through hole, the upper end of the valve core 20 is movably disposed through the avoiding hole 3121, and the gas discharged from the vent hole 21 is discharged out of the shielding cover 312 through the avoiding hole 3121.

When the valve element 20 is in the floating position in the energized state, the sealing ring 231 is attached to the lower surface of the metal cover 313, so that a sealing fit is formed, and gas in the pot body 40 is prevented from entering the valve element 20.

As shown in fig. 2, the upper cover 30 further includes a baking assembly 33, the baking assembly 33 includes a motor 331, fan blades 332 and a heating wire 333, the fan blades 332 are located below the cover 31, the heating wire 333 is located below the fan blades 332, the motor 331 is in driving connection with the fan blades 332, and the baking assembly 33 can be used for baking and cooking the cooking utensil, so that the cooking utensil can cook foods with different flavors.

The upper cover 30 further includes a pressure limiting valve disposed on the cover 31. Pressure cooking of the cooking utensil can be achieved through the pressure limiting valve, and then pressure in the cooker body can be improved, so that stewing efficiency of food can be improved.

Specifically, when the cooking appliance is in a baking cooking mode, the valve core 20 of the electromagnetic exhaust valve 32 is located at a sunken position in a power-off state, and gas in the pot body can be exhausted through the vent hole 21, so that the cooking appliance is in a normal-pressure cooking state. The air is heated by the heat emitted by the heating wire 333 to form hot air, the fan blades 332 are driven by the motor 331 to rotate, the hot air is blown into the pot body to bake food, and a part of the heated air is discharged through the vent holes 21, so that the circulation of the hot air is formed, the cooking appliance is in a normal-pressure cooking state, and the baking of the food is more uniform. When the cooking utensil is in a pressure cooking mode, the valve core 20 of the electromagnetic exhaust valve 32 is located at the floating position of the power-on state, at the moment, the pressure limiting valve is in the closed state, gas in the pot body can not enter the vent hole 21 through the air inlet hole 22 and is discharged, so that a closed space is formed in the pot body, air in the pot body is heated, the pressure rises, and pressure cooking is carried out on food. When the food is cooked, the pressure in the cooker body reaches a certain value, and then the pressure limiting valve is pushed to be in an open state, so that the pressure air in the cooker body is exhausted.

In the related art, an upper cover of a cooking appliance is in a pressure-baking integrated cover form, and switching of cooking modes can be realized without replacing the upper cover in a pressure cooking mode and a baking cooking mode. And in the pressure cooking mode, the air inlet of the upper cover is closed, so that pressure cooking is realized. In the baking cooking mode, the air inlet of the upper cover needs to be opened manually, and air is introduced and circulated.

Therefore, the electromagnetic exhaust valve 32 provided by the embodiment does not need to manually switch the state of the air inlet, and can avoid the situation that the consumer forgets to manually switch the air inlet to the open state, so that the cooking effect in the baking mode is not affected.

As shown in fig. 2 to 6, another embodiment of the present invention provides a cooking appliance, which includes an upper cover 30 and a pot body 40, wherein a power panel is disposed in the pot body 40; the upper cover 30 is arranged on the pot body 40 in an openable and closable manner, the upper cover 30 comprises the upper cover 30 provided above, and the signal wire 24 of the electromagnetic exhaust valve of the upper cover 30 is electrically connected with a power supply board. By adopting the cooking utensil with the structure, the switching between the exhaust state and the sealing state of the valve core 20 can be realized by controlling the electromagnetic exhaust valve 32 by using the power supply board, further, the state of the air inlet and the exhaust of the upper cover 30 does not need to be manually switched, the condition that a consumer forgets to manually switch the air inlet of the upper cover 30 into the opening state can be avoided, and the cooking effect under the baking mode cannot be influenced.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic exhaust valve, comprising:

the valve body (10) is provided with a mounting hole penetrating through the upper end surface and the lower end surface of the valve body (10), and the valve body (10) is provided with a magnetic part (12) arranged on the periphery of the mounting hole;

the valve core (20) can vertically movably penetrate through the mounting hole, the valve core (20) is provided with a vent hole (21) and an air inlet hole (22) which are communicated, the vent hole (21) vertically extends and penetrates through the upper end of the valve core (20), the air inlet hole (22) is formed in the side wall of the lower end of the valve core (20), a sealing piece (23) located below the air inlet hole (22) is arranged at the lower end of the valve core (20), the valve core (20) is connected with a signal wire (24), the valve core (20) is provided with a floating position in an energized state and a sinking position in a power-off state, when the valve core (20) is located at the floating position, the sealing piece (23) is in sealing fit with the valve body (10), and when the valve core (20) is located at the sinking position, the air inlet hole (22) is exposed below the valve body (10).

2. The electromagnetic exhaust valve according to claim 1, characterized in that said valve body (10) includes a housing (13), said mounting holes being provided through upper and lower end faces of said housing (13), said magnetic portion (12) being provided in said housing (13).

3. An electromagnetic exhaust valve according to claim 1 characterized in that said magnetic portion (12) comprises a magnet.

4. The electromagnetic exhaust valve according to claim 1 characterized in that the upper end of the valve spool (20) is provided with an annular boss (25), and when the valve spool (20) is located at the sunken position, the lower surface of the annular boss (25) abuts against the upper end surface of the valve body (10).

5. The electromagnetic exhaust valve according to claim 1, characterized in that the sealing element (23) comprises a sealing ring (231), an annular groove (26) is arranged on the side wall of the valve core (20) and located below the air inlet hole (22), and the sealing ring (231) is sleeved on the annular groove (26).

6. An upper cover, characterized in that the upper cover (30) comprises:

a cover (31);

an electromagnetic exhaust valve (32), a valve body (10) of the electromagnetic exhaust valve (32) is arranged through the cover body (31), and the electromagnetic exhaust valve (32) is the electromagnetic exhaust valve according to any one of claims 1 to 5.

7. The upper cover according to claim 6, wherein the cover body (31) comprises a shielding cover (312) and a metal cover (313) located below the shielding cover (312), an annular convex rib (311) is arranged on the lower surface of the shielding cover (312), the lower surface of the annular convex rib (311) is abutted to the upper end face of the valve body (10), the lower end of the valve body (10) is connected with the metal cover (313), the shielding cover (312) is provided with a relief hole (3121), and a valve core of the electromagnetic exhaust valve (32) is movably arranged in the relief hole (3121).

8. The upper cover according to claim 6,

the upper cover (30) further comprises a baking assembly (33), the baking assembly (33) comprises a motor (331), fan blades (332) and heating wires (333), the fan blades (332) are located below the cover body (31), the heating wires (333) are located below the fan blades (332), and the motor (331) is in driving connection with the fan blades (332);

the upper cover (30) also comprises a pressure limiting valve arranged on the cover body (31).

9. A cooking appliance, characterized in that it comprises:

the pot body (40), the inside of the pot body (40) is provided with a power panel;

the upper cover (30) is arranged on the pot body (40) in an openable and closable manner, the upper cover (30) is the upper cover (30) as claimed in any one of claims 6 to 8, and a signal wire (24) of an electromagnetic exhaust valve of the upper cover (30) is electrically connected with the power supply board.