CN209031869U - Cooking apparatus - Google Patents
Cooking apparatus Download PDFInfo
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- CN209031869U CN209031869U CN201821407262.XU CN201821407262U CN209031869U CN 209031869 U CN209031869 U CN 209031869U CN 201821407262 U CN201821407262 U CN 201821407262U CN 209031869 U CN209031869 U CN 209031869U
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- moving member
- cooking cavity
- lid
- pressure
- shell
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Abstract
The utility model discloses a kind of cooking apparatus, including shell；Lid, lid is movably installed between open and closed positions to shell, for opening and closing a side opening of accommodating chamber；Interior pot；Air extractor, pumping will be pumped into negative pressure state in cooking cavity；Pressure sensitive device, including moving member and with the spaced fixing piece of moving member, wherein when occurring mobile under gas pressure of the moving member in cooking cavity, the capacitor of pressure sensitive device changes；Control device is connected with fixing piece, and control device determines the pressure in cooking cavity by the capacitance variation amount of detection pressure sensitive device, and controls air extractor according to the pressure in cooking cavity.The cooking apparatus can accurately determine the pressure in cooking cavity by the capacitance variation amount of detection pressure sensitive device, so as to so that the air pressure in cooking cavity maintains preset range, and control and be more convenient, it is easy to accomplish.
Description
Technical field
The utility model relates to cooking equipment technical fields, more particularly, to cooking for a kind of electric cooker, pressure cooker etc.
It prepares food utensil.
Background technique
When cooking apparatus in the related technology works, in order to promote the water-taking efficiency of the grain of rice in the water suction stage, or protecting
Thermophase increases the heat insulation effect of rice, by arranging vacuum evacuation device in upper cover, thus according to the need of different cooking stages
It wants, the air pressure of cooking cavity is pumped by preset pressure by vacuum evacuation device.
However, vacuum evacuation device, which at work, depends merely on its own structure, can not detect vacuum degree in cooking cavity, i.e., not
It can detect whether vacuum evacuation device by the air pressure in cooking cavity is extracted into preset pressure.Accordingly, there exist improved demands.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, the cooking apparatus passes through detection pressure sensitive the purpose of this utility model is that proposing a kind of cooking apparatus
The capacitance variation amount of device can accurately determine the pressure in cooking cavity, so as to so that the air pressure in cooking cavity maintain it is pre-
If range, and control more convenient, it is easy to accomplish.
In order to achieve the above objectives, the utility model proposes a kind of cooking apparatus, comprising: shell, the shell have one
The open accommodating chamber in side；Lid, the lid are movably installed between open and closed positions to the shell, are used
In the side opening for opening and closing the accommodating chamber；Interior pot, the interior pot are set in the accommodating chamber and limit top and open
The cooking cavity opened；Air extractor, the air extractor will be pumped into negative pressure state in the cooking cavity when being evacuated；Pressure sensitive dress
Set, the pressure sensitive device include moving member and with the spaced fixing piece of the moving member, wherein the moving member exists
When occurring mobile under the gas pressure in the cooking cavity, the capacitor of the pressure sensitive device changes；Control device, institute
It states control device to be connected with the fixing piece, the capacitance variation amount that the control device passes through the detection pressure sensitive device
With the pressure in the determination cooking cavity, and the air extractor is controlled according to the pressure in the cooking cavity.
Cooking apparatus according to the present utility model, when occurring mobile under gas pressure of the moving member in cooking cavity, pressure
The capacitor of sensing device changes, and control device is by the capacitance variation amount of detection pressure sensitive device to determine cooking cavity
Interior pressure, and air extractor is controlled according to the pressure in cooking cavity.The cooking apparatus passes through detection pressure sensitive device as a result,
Capacitance variation amount can accurately determine the pressure in cooking cavity, so as to so that the air pressure in cooking cavity maintains default model
It encloses, and controls more convenient, it is easy to accomplish.
In addition, can also have following additional technical feature according to the utility model cooking apparatus set forth above:
Specifically, the end face of the moving member towards the fixing piece side is provided with conductive material or the movement
Part is integrally made of an electrically conducting material.
Further, the upper end setting of the relatively described moving member of the fixing piece.
Specifically, the control device includes capacitive detection circuit, and the capacitive detection circuit and the pressure sensitive fill
It sets and is configured to vibrator, wherein when the capacitor of the pressure sensitive device changes, the vibration frequency of the vibrator occurs
Variation.
Further, the capacitive detection circuit includes: Schmidt trigger, the input terminal of the Schmidt trigger with
The fixing piece is connected, the moving member ground connection；First resistor, one end of the first resistor and the Schmidt trigger
Input terminal is connected, and the other end of the first resistor is connected with the output end of the Schmidt trigger.
Further, the capacitive detection circuit further include: first capacitor, one end of the first capacitor are applied with described
The input terminal of schmitt trigger is connected, and states the other end ground connection of first capacitor.
Specifically, the lid include inner cover, be located at the inner cover towards the cooking cavity side cover board and set
In the cover backwards to the cooking cavity side of the inner cover, the moving member is arranged in the cover board, and the fixing piece is set to
The inner cover or cover.
Specifically, side of the shell/lid towards the cooking cavity is equipped with mounting hole, and the moving member is worn
Set on the mounting hole, the shell/lid that is located at of the moving member is cased with spring and the spring outside intracorporal part
Both ends respectively only support the shell/lid and the moving member.
Further, one end of the stretching mounting hole of the moving member is equipped with sealing element, is used for and the shell/institute
State lid sealed connection.
Specifically, the moving member is float, and the fixing piece is sheet metal or spring.
Specifically, the shell/lid has aspirating hole, and the air extractor includes:
Vacuum pump, the vacuum pump are connected to will be pumped into negative pressure state in the cooking cavity with the aspirating hole；Solenoid valve,
The solenoid valve is connected between the aspirating hole and the vacuum pump, for controlling between the aspirating hole and the vacuum pump
Gas circuit on-off.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram according to the cooking apparatus of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the cover assembly of cooking apparatus shown in Fig. 1；
Fig. 3 is the top view of cooking apparatus shown in Fig. 1；
Fig. 4 is the cross-sectional view of the line A-A along Fig. 3；
Fig. 5 is the enlarged drawing in the portion B shown in Fig. 4；
Fig. 6 is the structural schematic diagram according to the cooking apparatus of the utility model another embodiment；
Fig. 7 is the structural schematic diagram according to the cooking apparatus of the utility model another embodiment；
Fig. 8 is the structural schematic diagram according to the cooking apparatus of the utility model further embodiment.
Fig. 9 is the circuit topology figure according to the control device of the utility model embodiment.
Appended drawing reference:
Cooking apparatus 100,
Shell 10, accommodating chamber 101, interior pot 11, cooking cavity 12,
Lid 20, inner cover 21, cover board 22, aspirating hole 2201, mounting hole 2202, cover 23,
Air extractor 30, vacuum pump 31, solenoid valve 32,
Pressure sensitive device 40, moving member 41, fixing piece 42, sealing element 43,
Capacitive detection circuit 501, Schmidt trigger 5011, first capacitor C1, first resistor R1.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below with reference to the accompanying drawings cooking apparatus according to the utility model embodiment is described.
It as shown in Figs. 1-5, include: shell 10, lid 20, interior pot according to the cooking apparatus of the utility model embodiment 100
11, air extractor 30, pressure sensitive device 40 and control device.
Wherein, shell 10 has the open accommodating chamber 101 in side, and lid 20 can live between open and closed positions
It is installed dynamicly to shell 10, for example, lid 20 can be pivotably mounted on the top of shell 10 by pivotal axis or hinge
Or side, can also be attached with shell 10 using other modes, lid 20 for opening and closing accommodating chamber 101 side
Opening.Interior pot 11 limits the open cooking cavity 12 in top, is used for accommodating food.Air extractor 30 is mounted on shell 10 or lid
Body 20 directly or indirectly will can be pumped into negative pressure state in cooking cavity 12 when air extractor 30 is evacuated.
Pressure sensitive device 40 includes moving member 41 and fixing piece 42, fixing piece 42 and the mutual magnetic induction of moving member 41, moves
A part of moving part 41 passes through the inside (downside as shown in Figure 4) of shell 10 or lid 20, wherein moving member 41 can be in gas
It is moved under the action of pressure difference, the capacitor of pressure sensitive device 40 changes.Control device is connected with fixing piece 42, control device
By the capacitance variation amount of detection pressure sensitive device to determine the pressure in cooking cavity, and according to the pressure control in cooking cavity
Air extractor 30 processed.
Specifically, when the air pressure in cooking cavity changes, gas pressure of the meeting of moving member 41 in cooking cavity is issued
Raw movement, the mobile capacitor that can make pressure sensitive device of moving member 41 change.Control device can be by detecting pressure
The capacitance variation amount of sensing device 40 determines the pressure in cooking cavity, and according to the pressure in cooking cavity to air extractor 30
It is controlled.Thus, it is possible to which the pressure in cooking cavity is made to be maintained at preset range, to guarantee to cook effect, and control more
It is convenient, it is easy to accomplish.
As Figure 1-Figure 5, an optional embodiment according to the present utility model, accommodating chamber 101 have top opening,
Lid 20 at closed position, close accommodating chamber 101 top opening and seal cooking cavity 12 top opening, to make to cook
Chamber 12 forms closed chamber.Specifically, shell 10 includes pedestal and interior pot 11, limits accommodating chamber between pedestal and lid 20
101, interior pot 11 is located in pedestal and limits the open cooking cavity 12 in top.
Further, in the present invention, the end face towards fixing piece side of moving member 41 is provided with conductive material,
Or 41 entirety of moving member is made of an electrically conducting material.The upper end of 42 relative movable parts 41 of fixing piece is arranged.Moving member 41 can be
Float, fixing piece 42 can be sheet metal or spring.Conductive material can be that the SUS304 for meeting food hygiene arrangement and aluminium close
The conductive materials such as gold.
Specifically, there are the elastic force control vacuum values of spring between float and cover board, there are conductive material, feeling of stress in float upper end
Device 40 is answered to be arranged on upper lid, lower surface and conduction material of the detected value of pressure sensitive device 40 with pressure sensitive device 40
The distance H of material changes and changes, and 2mm≤H≤10mm.Assuming that vacuum degree is less than preset vacuum degree P1 in cooking cavity 12, float
The capacitance of pressure sensitive device 40 is A1 when son is not mobile, and when reaching preset vacuum degree P1 in pot, the suction in pot is inhaled
Lower float, the distance for making the conductive material on float leave detection device are greater than H, and the capacitance of pressure sensitive device 40 is at this time
A2, control device carry out controling and operating for next step, such as control pumping dress by the capacitance of detection pressure sensitive device 40
30 stoppings are set to vacuumize；When the vacuum degree in pot is less than preset vacuum degree P1, under the force of a spring, on float
It rises, for conductive material close to pressure sensitive device 40, the capacitance of pressure sensitive device 40 is restored to A1, and control device passes through detection
The capacitance of pressure sensitive device 40 carries out controling and operating for next step, such as the control unlatching of air extractor 30 vacuumizes.
In some instances, lid 2020 includes inner cover 21, cover board 22 and cover 23, and cover board 22 is located at the direction of inner cover 21
12 side of cooking cavity (downside as shown in Figure 1 and Figure 4), cover 23 be located at inner cover 21 backwards to 12 side of cooking cavity (such as Fig. 1 and
Upside shown in Fig. 4), moving member 41 is movably arranged in cover board 22, and fixing piece 42 is set to inner cover 21 or cover 23.
Referring to Fig. 4 and Fig. 5, cover board 22 is removably mounted on the lower section of inner cover 21, and fixing piece 42 is mounted on inner cover 21
Backwards to the side (upside of inner cover 21 as shown in Figure 4) of cover board 22, moving member 41 is mounted on cover board 22 and moving member 41
Top is between inner cover 21 and cover board 22, and the lower part of moving member 41 passes through cover board 22, and structure is simple, compact, is convenient to mount and dismount.
In some instances, 10/ lid of shell, 20 inside (for example, cover board 22 as shown in Figure 4 and Figure 5) is equipped with mounting hole
2202, moving member 41 is arranged in mounting hole 2202, is cased with spring outside the part of moving member 41 being located in 10/ lid 20 of shell
413, and 10/ lid 20 of shell and moving member 41 are only supported in the both ends of spring 413 respectively.
It is understood that pressure sensitive device 40 can both be set for the scheme that cooking cavity 12 is connected to accommodating chamber 101
On the housing 10, it can also be located on lid 20, i.e. installation can be set in the inside of any of shell 10 and lid 20
Hole 2202, so that moving member 41 is located at mounting hole 2202, as long as the indoor air pressure of the chamber being connected to cooking cavity 12 can be with
It acts on moving member 41 and belongs to the application scope of the claimed.
For example, when accommodating chamber 101 is connected to cooking cavity 12 and mounting hole 2202 is arranged for the inside of shell 10, moving member 41
The part being located in shell 10 outside be cased with spring 413, and the both ends of spring 413 are respectively only to shell 10 and moving member 41.
In some instances, one end (lower end as shown in Figure 5) of the stretching mounting hole 2202 of moving member 41 is equipped with sealing
Part 43, for being tightly connected with 10/ lid 20 of shell.By the way that sealing element 43 is arranged in the lower end of moving member 41, by sealing element
43 not only may be implemented the effect of limit, prevent moving member 41 to be detached from mounting hole 2202, it can also be ensured that moving member 41 and shell
Leakproofness between 10/ lid 20, wherein the inner wall gapless of moving member 41 and mounting hole 2202, is further ensured that leakproofness.
One embodiment according to the present utility model, 10/ lid 20 of shell have aspirating hole 2201, and air extractor 30 includes
Vacuum pump 31, vacuum pump 31 are connected to will be pumped into negative pressure state in cooking cavity 12 with aspirating hole 2201, wherein vacuum pump 31 can be with
It is mounted in shell 10, also may be mounted in lid 2, vacuum pump 31 can be connected to by connecting tube with aspirating hole 2201, even
It connects conveniently, it is easy to accomplish.
In some instances, air extractor 30 further includes solenoid valve 32, and solenoid valve 32 is connected to aspirating hole 2201 and vacuum
Between pump 31, for controlling the on-off of the gas circuit between aspirating hole 2201 and vacuum pump 31, by the way that solenoid valve 32 is arranged, not only may be used
It is protected with being formed to vacuum pump 31, avoids the suddenly change of air-flow from damaging vacuum pump 31, and can control vacuum pump
On-off between 31 and aspirating hole 2201.
As Figure 6-Figure 8, another optional embodiment according to the present utility model, when lid 20 is located at closed position
When, lid 20 and shell 10 are tightly connected, so that accommodating chamber 101 be made to form closed chamber, and the closed chamber and culinary art
The top opening of chamber 12 is connected to.
With reference to Fig. 7, in some instances, the top of accommodating chamber 101 is opened wide, and lid 20 is pivotably coupled to shell 10
Top, shell 10 include pedestal and outer pot, and lid 20 is pivotly set to the top of pedestal, and outer pot is fixed on pedestal and limits
Accommodating chamber 101, when lid 20 is located at closed position, lid 20 and outer pot are tightly connected.Wherein, outer pot is by plastic material or gold
Belong to material to be made.
With reference to Fig. 8 and Fig. 9, in other examples, the open front of accommodating chamber 101, lid 20 is movably arranged at shell
The front of body 10.For example, lid 20 is pivotably coupled to the front of shell 10.For another example, lid 20 can be set to linear movement
The front of shell 10.
One embodiment according to the present utility model, moving member 41 and 42 arranged for interval of fixing piece, when moving member 41 is mobile,
The distance between moving member 41 and fixing piece 42 constantly change, when the direction that moving member 41 is directed away from fixing piece 42 be moved to it is pre-
When positioning is set, the distance between moving member 41 and fixing piece 42 reach pre-determined distance at this time, thus magnetic induction pressure control device
40 control air extractors 30 stop pumping.
The capacitance variation amount how control device detects pressure sensitive device 40 is described below with reference to the example of tool.
One embodiment according to the present utility model, as shown in figure 9, control device may include capacitive detection circuit 501,
Capacitive detection circuit 501 and pressure sensitive device 40 are configured to vibrator, wherein the capacitor of pressure sensitive device 40 changes
When, the vibration frequency f of vibrator changes.
Further, as shown in figure 9, capacitive detection circuit 5011 may include: Schmidt trigger 5011 and the first electricity
Hinder R1.The input terminal of Schmidt trigger 5011 is connected with fixing piece 42, and moving member 41 is grounded.One end of first resistor R1 with apply
The input terminal of schmitt trigger 501 is connected, and the other end of first resistor R1 is connected with the output end of Schmidt trigger 5011.
Further, capacitive detection circuit 5011 can also include first capacitor C1, one end of first capacitor C1 with apply
The input terminal of schmitt trigger 5011 is connected, the other end ground connection of first capacitor C1.
Specifically, there is self-excitation RC oscillator, the rate of charge and discharge is by RC time constant in Schmidt trigger 5011
It determines, the capacitance Cx of pressure sensitive device 40 just can be obtained in the frequency of oscillation f by detecting RC oscillator, leads to learn
Whether electric material is close with detection device.The relationship of frequency of oscillation f and Cx are as follows:
F=1/ [R (C+Cx)],
Wherein, f is the frequency of oscillation f of vibrator；C is the capacitance of an electric capacitor；Cx is the capacitance of pressure sensitive device
Cx。
Since R, C are constant, pressure sensitive dress can be obtained by the variation that control device obtains frequency of oscillation f
Set 40 capacitance variation amount.
Other of the cooking apparatus such as the electric cooker according to the utility model embodiment are constituted and are operated for ability
All be for the those of ordinary skill of domain it is known, be not detailed herein.
Cooking apparatus according to the present utility model, when occurring mobile under gas pressure of the moving member in cooking cavity, pressure
The capacitor of sensing device changes, and control device is by the capacitance variation amount of detection pressure sensitive device to determine cooking cavity
Interior pressure, and air extractor is controlled according to the pressure in cooking cavity.The cooking apparatus passes through detection pressure sensitive device as a result,
Capacitance variation amount can accurately determine the pressure in cooking cavity, so as to so that the air pressure in cooking cavity maintains default model
It encloses, and controls more convenient, it is easy to accomplish.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (11)
1. a kind of cooking apparatus characterized by comprising
Shell, the shell have the open accommodating chamber in side；
Lid, the lid are movably installed to the shell between open and closed positions, are used to open and are closed
Close a side opening of the accommodating chamber；
Interior pot, the interior pot are set in the accommodating chamber and limit the open cooking cavity in top；
Air extractor, the air extractor will be pumped into negative pressure state in the cooking cavity when being evacuated；
Pressure sensitive device, the pressure sensitive device include moving member and with the spaced fixing piece of the moving member,
In, when the moving member occurs mobile under the gas pressure in the cooking cavity, the capacitor of the pressure sensitive device occurs
Variation；
Control device, the control device are connected with the fixing piece, and the control device is by detecting the pressure sensitive dress
The capacitance variation amount set controls the pumping according to the pressure in the cooking cavity with the pressure in the determination cooking cavity
Device.
2. cooking apparatus according to claim 1, which is characterized in that end of the moving member towards the fixing piece side
Face is provided with conductive material or the moving member is integrally made of an electrically conducting material.
3. cooking apparatus according to claim 2, which is characterized in that the upper end of the relatively described moving member of the fixing piece is set
It sets.
4. cooking apparatus according to claim 1, which is characterized in that the control device includes capacitive detection circuit, institute
It states capacitive detection circuit and the pressure sensitive device is configured to vibrator, wherein the capacitor of the pressure sensitive device occurs
When variation, the vibration frequency of the vibrator changes.
5. cooking apparatus according to claim 4, which is characterized in that the capacitive detection circuit includes:
Schmidt trigger, the input terminal of the Schmidt trigger are connected with the fixing piece, the moving member ground connection；
First resistor, one end of the first resistor are connected with the input terminal of the Schmidt trigger, the first resistor
The other end is connected with the output end of the Schmidt trigger.
6. cooking apparatus according to claim 5, which is characterized in that the capacitive detection circuit further include:
First capacitor, one end of the first capacitor are connected with the input terminal of the Schmidt trigger, the first capacitor
Other end ground connection.
7. cooking apparatus according to claim 1, which is characterized in that the lid includes inner cover, is located at the inner cover
Towards the cooking cavity side cover board and be located at the inner cover backwards to the cooking cavity side cover, the moving member
It is arranged in the cover board, the fixing piece is set to the inner cover or cover.
8. cooking apparatus according to claim 1, which is characterized in that the shell/lid inside is equipped with installation
Hole, the moving member are arranged in the mounting hole, and the shell/lid that is located at of the moving member is cased with outside intracorporal part
The shell/lid and the moving member are only supported in the both ends of spring and the spring respectively.
9. cooking apparatus according to claim 8, which is characterized in that one end of the stretching mounting hole of the moving member
Equipped with sealing element, for being tightly connected with the shell/lid.
10. cooking apparatus according to claim 1, which is characterized in that the moving member is float, and the fixing piece is gold
Belong to piece or spring.
11. cooking apparatus according to claim 1, which is characterized in that the shell/lid has aspirating hole, institute
Stating air extractor includes:
Vacuum pump, the vacuum pump are connected to will be pumped into negative pressure state in the cooking cavity with the aspirating hole；
Solenoid valve, the solenoid valve are connected between the aspirating hole and the vacuum pump, for controlling the aspirating hole and institute
State the on-off of the gas circuit between vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407262.XU CN209031869U (en) | 2018-08-28 | 2018-08-28 | Cooking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821407262.XU CN209031869U (en) | 2018-08-28 | 2018-08-28 | Cooking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209031869U true CN209031869U (en) | 2019-06-28 |
Family
ID=67031968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821407262.XU Active CN209031869U (en) | 2018-08-28 | 2018-08-28 | Cooking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209031869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110432787A (en) * | 2019-08-12 | 2019-11-12 | 珠海格力电器股份有限公司 | Lid and cooking apparatus with it |
-
2018
- 2018-08-28 CN CN201821407262.XU patent/CN209031869U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110432787A (en) * | 2019-08-12 | 2019-11-12 | 珠海格力电器股份有限公司 | Lid and cooking apparatus with it |
| CN110432787B (en) * | 2019-08-12 | 2021-02-19 | 珠海格力电器股份有限公司 | Lid and have its cooking utensil |
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