CN106618172B - Pressure sensor and cooking apparatus with it - Google Patents
Pressure sensor and cooking apparatus with it Download PDFInfo
- Publication number
- CN106618172B CN106618172B CN201611147655.7A CN201611147655A CN106618172B CN 106618172 B CN106618172 B CN 106618172B CN 201611147655 A CN201611147655 A CN 201611147655A CN 106618172 B CN106618172 B CN 106618172B
- Authority
- CN
- China
- Prior art keywords
- pressure
- sensor
- open end
- pressure chamber
- pressure sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/007—Transmitting or indicating the displacement of flexible diaphragms using variations in inductance
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of pressure sensor and with its cooking apparatus, wherein pressure sensor includes: sensor body, and pressure chamber open at one end is defined in sensor body, and sensor body is equipped with the stomata be connected with pressure chamber；Flexible sealing fin, flexible sealing fin are located at the open end of sensor body with closing open end, and flexible sealing fin is configured to when open end external atmospheric pressure is greater than air pressure in pressure chamber towards deformation occurs in pressure chamber；Movable part, movable part are located at flexible sealing on piece and are moved according to the deformation of flexible sealing fin；Induction pieces, induction pieces are configured to the displacement suitable for sensed activity part；Controller, controller are connected the air pressure calculated on the outside of open end with the displacement information that is sensed according to induction pieces with induction pieces.Pressure sensor according to an embodiment of the present invention, structure is simple, and route is simple, is conducive to the structure for simplifying the installation carrier and assembly process, and can detecte the pressure value using operating condition, and use is safe.
Description
Technical field
The present invention relates to fields of home appliance technology, more particularly, to a kind of pressure sensor and with its culinary art
Utensil.
Background technique
Currently, the pressure sensor of production is resistance strain gage pressure sensor, semiconductor gauge pressure on pressure cooker
Sensor, piezoresistive pressure sensor, inductance pressure transducer, capacitance pressure transducer, etc., these pressure sensor lines
Road connection is complicated, affects the assembly of pressure cooker lid and pot body.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem at least to a certain extent.
For this purpose, the present invention proposes a kind of pressure sensor, the structure of the pressure sensor is simple, compact, and route is simple, dress
It tears open conveniently, especially suitable for pot cover and the separable cooking apparatus of pot body, is conducive to the dress for simplifying cooking apparatus pot cover and pot body
Match.
The present invention also proposes a kind of cooking apparatus with above-mentioned pressure sensor,
The pressure sensor of embodiment according to a first aspect of the present invention, comprising: sensor body, in the sensor body
Pressure chamber open at one end is defined, the sensor body is equipped with the stomata be connected with the pressure chamber；Flexible sealing fin,
The flexible sealing fin is located at the open end of the sensor body to close the open end, and the flexible sealing fin is constructed
At when the open end external atmospheric pressure is greater than air pressure in the pressure chamber towards deformation occurs in the pressure chamber；Movable part,
The movable part is located at the flexible sealing on piece and is moved according to the deformation of the flexible sealing fin；Induction pieces, it is described
Induction pieces are spaced apart setting with the movable part, and the induction pieces are configured to the displacement for being suitable for incuding the movable part；Control
Device, the controller is connected with the induction pieces to be calculated outside the open end with the displacement information sensed according to the induction pieces
The air pressure of side.
Pressure sensor according to an embodiment of the present invention, structure is simple, compact, and route is simple, is convenient to mount and dismount, and is conducive to letter
Change its structure and assembly process for installing carrier, and can detecte the pressure value using operating condition, to guarantee system just
Often work, use is safe and reliable, and user experience is more preferable.
In addition, pressure sensor according to an embodiment of the present invention, can also have the following additional technical features:
According to one embodiment of present invention, the lower ending opening of the sensor body, the flexible sealing fin is vertically
Direction can deformation occurs.
According to one embodiment of present invention, the movable part is formed as mobile magnetic core, and the induction pieces are formed as incuding
Coil, the induction coil generate the resonance frequency that inductance changes and causes sensing circuit according to the change in displacement of the mobile magnetic core
Rate variation prestores the resonance frequency in the controller and changes atmospheric pressure value on the outside of the corresponding open end, the control
Device processed calculates the air pressure on the outside of the open end according to resonance frequency variation.
According to one embodiment of present invention, the induction coil is wound around the periphery of the pressure chamber.
According to one embodiment of present invention, the upper end of the mobile magnetic core is located in the induction coil, and the shifting
The shift length of the upper end of dynamic magnetic core in the vertical direction is less than the axial length of the induction coil.
According to one embodiment of present invention, the stomata is located at the top of the pressure chamber, the mobile magnetic core with it is described
Be equipped with elastic component between at the top of pressure chamber, the both ends of the elastic component respectively with the top of the mobile magnetic core and the pressure chamber
Roof be connected.
According to one embodiment of present invention, the elastic component is spring.
According to one embodiment of present invention, the top of the pressure chamber is equipped with overload protection electrode, the overload protection
Electrode is configured to cut off when the overload protection electrode is only supported in the top of the mobile magnetic core for increasing the open end
The power supply of the device of external atmospheric pressure.
According to one embodiment of present invention, the sensor body is generally formed into the column of lower ending opening, the biography
The inner wall of sensor ontology limits the pressure chamber, and the outer wall of the sensor body and the spaced apart from inner walls limit receiving
Chamber, the induction coil are wound around on the inner wall and are located in the accommodating chamber.
According to one embodiment of present invention, it is limited between the outer peripheral surface of the mobile magnetic core and the inner peripheral surface of the inner wall
It is suitable for the guide groove that the mobile magnetic core moves up and down out.
According to one embodiment of present invention, the sensor body is formed as plastic module.
According to one embodiment of present invention, the radial dimension of the open end of the sensor body is greater than the pressure
The radial dimension of power chamber.
According to one embodiment of present invention, the movable part is formed as the sealing electricity for being located at the flexible sealing on piece
Pole, the induction pieces are the fixation electrode being located at the top of the pressure chamber.
According to one embodiment of present invention, the stomata includes two, and two stomata intervals are provided with the biography
The top of sensor ontology.
According to one embodiment of present invention, the lower surface of the fixed electrode is equipped with overload protection electrode, the overload
Guard electrode is configured to cut off when at least part of the enclosed electrode only supports the overload protection electrode for increasing
The power supply of the device of the open end external atmospheric pressure.
The cooking apparatus of embodiment according to a second aspect of the present invention, comprising: pot body defines cavity in the pot body；Pot
Lid, the pot cover are movably located in the pot body to open and close the cavity；The pressure according to above-described embodiment
Force snesor, the sensor body, the flexible sealing fin, the movable part and the induction pieces are located on the pot cover,
The controller is located in the pot body.
According to one embodiment of present invention, the pot cover may be reversed ground and be connected with the pot body, the controller and institute
It states induction pieces and passes through connection or wireless connection.
According to one embodiment of present invention, the pot cover is removably connected with the pot body, the controller and institute
State induction pieces wireless connection.
According to one embodiment of present invention, the pot cover is equipped with column handle, and the column handle is formed as described
Sensor body.
According to one embodiment of present invention, the sensor body and the pot cover are integrally formed.
According to one embodiment of present invention, the pot cover is equipped with strip-type handle, and the strip-type handle is across the pot
The two sides of lid, the pressure sensor are located at the side of the strip-type handle.
According to one embodiment of present invention, the sensor body is connected by screw to the pot cover.
According to one embodiment of present invention, the two sides of the open end of the sensor body be respectively equipped with downwards to
The link block that outer incline extends, the upper end of the link block are connected with the sensor body, the outside of the link block and institute
Pot cover is stated to be connected.
According to one embodiment of present invention, the channel being connected to the open end, institute are limited between the link block
The radial dimension for stating the lower end in channel is greater than the radial dimension of upper end, and the radial dimension of the upper end in the channel is greater than the opening
The radial dimension at end.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is a kind of structural schematic diagram of the pressure sensor according to an embodiment of the invention under working condition；
Fig. 2 is structural schematic diagram of the pressure sensor shown in Fig. 1 under another working condition；
Fig. 3 is a kind of structural schematic diagram of the pressure sensor of another embodiment according to the present invention under working condition；
Fig. 4 is structural schematic diagram of the pressure sensor shown in Fig. 3 under another working condition；
Fig. 5 is a kind of structural schematic diagram of the pressure sensor in accordance with another embodiment of the present invention under working condition；
Fig. 6 is structural schematic diagram of the pressure sensor shown in Fig. 5 under another working condition；
Fig. 7 is the assembling figure of pressure sensor and pot cover shown in Fig. 5；
Fig. 8 is the structural schematic diagram of the pressure sensor of another embodiment according to the present invention；
Fig. 9 is the structural schematic diagram of pressure cooker according to an embodiment of the invention；
Figure 10 is the explosive view of structure shown in Fig. 9；
Figure 11 is the structural schematic diagram of the pressure cooker of another embodiment according to the present invention；
Figure 12 is that the resonance frequency variation of the air pressure and sensing circuit in pressure cooker body according to an embodiment of the present invention is bent
Line chart.
Appended drawing reference:
A: pressure cooker；
10: pressure sensor；10a: open end；
11: sensor body；111: pressure chamber；112: stomata；113: link block；114: accommodating chamber；
12: flexible sealing fin；
13: movable part；14: induction pieces；
15: elastic component；16: overload protection electrode；
20: pot body；
30: pot cover.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
1 to Fig. 8 pressure sensor 10 for specifically describing embodiment according to a first aspect of the present invention with reference to the accompanying drawing.
Pressure sensor 10 according to an embodiment of the present invention include sensor body 11, flexible sealing fin 12, movable part 13,
Induction pieces 14 and controller (not shown).Specifically, defining pressure chamber 111 open at one end in sensor body 11, pass
Sensor ontology 11 is equipped with the stomata 112 be connected with pressure chamber 111, and flexible sealing fin 12 is located at the open end of sensor body 11
With closing open end 10a, flexible sealing fin 12 is configured to be greater than air pressure in pressure chamber 111 when open end 10a external atmospheric pressure 10a
Deformation occurs in Shi Chaoxiang pressure chamber 111, and movable part 13 is located in flexible sealing fin 12 and according to the deformation of flexible sealing fin 12
It moving, induction pieces 14 are spaced apart setting with movable part 13, and induction pieces 14 are configured to the displacement suitable for sensed activity part 13,
Controller is connected the air pressure calculated on the outside of the 10a of open end with the displacement information that is sensed according to induction pieces 14 with induction pieces 14.
In other words, pressure sensor 10 is mainly by sensor body 11, flexible sealing fin 12, movable part 13, induction pieces 14
It is formed with controller, wherein sensor body 11 extends along the vertical direction (up and down direction as shown in Figure 1), sensor body
Open at one end (lower end as shown in Figure 1) open pressure chamber 111 is defined in 11, sensor body 11 is equipped with stomata 112,
Stomata 112 and pressure chamber 111 are connected.
Flexible sealing fin 12 is located at the open end of sensor body 11 with the opening of confining pressure chamber 111, when pressure chamber 111
There are when pressure difference, flexible sealing fin 12 can be with deformation occurs for inner cavity and external atmospheric pressure.Specifically, if 10 open end of pressure sensor
The external atmospheric pressure of 10a is greater than 111 inner cavity air pressure of pressure chamber, and flexible sealing fin 12 is mobile towards pressure chamber 111, i.e., to pressure chamber
The deformation of 111 sides；If the external atmospheric pressure of the open end 10a of pressure sensor 10 is less than 111 inner cavity air pressure of pressure chamber, flexible sealing
The direction that piece 12 is directed away from pressure chamber 111 is mobile, i.e., deforms backwards to pressure chamber 111.
Further, flexible sealing fin 12 is equipped with movable part 13, and movable part 13 can be according to the shape of flexible sealing fin 12
Become and towards pressure chamber 111 perhaps in the mobile sensor body 11 of pressure chamber 111 or the position of proximity sensor ontology 11
Induction pieces 14 have been installed, when movable part 13 is subjected to displacement, the displacement information of movable part 13 can have been sensed, then will sense
Displacement information feed back to controller, then controller can obtain the outside of pressure sensor 10 according to the displacement information received
The exact value of air pressure.
Pressure sensor 10 according to an embodiment of the present invention as a result, structure is simple, compact, and route is simple, is convenient to mount and dismount,
Be conducive to simplify the installation the structure and assembly process of carrier, and can detecte the pressure value using operating condition, to guarantee
The normal work of system, use is safe and reliable, and user experience is more preferable.
Optionally, the lower ending opening of sensor body 11, flexible sealing fin 12 along the vertical direction can deformation occurs.Referring to figure
1 and Fig. 2, sensor body 11 vertically extend, and are defined in sensor body 11 along its axially extending pressure chamber
111, the upper end of sensor body 11 is equipped with the stomata 112 be connected with pressure chamber 111, and the lower end of sensor body 11 forms opening
End, flexible sealing fin 12 are located at the lower end of sensor body 11 with the opening of confining pressure chamber 111, and flexible sealing fin 12 can be with
According to the deformation corresponding with the generation of the pressure difference of the external atmospheric pressure of the open end 10a of pressure sensor 10 of pressure chamber 111, to drive
13 activity of movable part.
Optionally, movable part 13 is formed as mobile magnetic core, and induction pieces 14 are formed as induction coil, and induction coil is according to movement
The change in displacement of magnetic core generates inductance and changes and the resonance frequency of sensing circuit is caused to change, and resonance frequency is prestored in controller
Change the atmospheric pressure value on the outside of corresponding open end 10a, controller changes the gas calculated on the outside of the 10a of open end according to resonance frequency
Pressure.
Specifically, moving iron core forms the axially extending column along sensor body 11, and moving iron core is located at flexible close
Movable with the deformation with flexible sealing fin 12 on mounting 12, induction coil can be located in sensor body 11 or neighbouring biography
Sensor ontology 11 is arranged, wherein the coefficient of elasticity of flexible sealing fin 12 is k, and pressure sensing area is A, pressure sensor 10
Open end 10a external atmospheric pressure pressure is P, and when moving iron core activity, induction coil can sense the displacement of moving iron core, pressure
The be under pressure outside thrust of external atmospheric pressure of open end 10a of sensor 10 of the flexible sealing fin 12 of force snesor 10 is F=
PA, the position that flexible sealing fin 12 generates deformation, and moving iron core is driven to move up under the action of the 10a external atmospheric pressure of open end
Set x=F/k=PA/k；Moving iron core displacement x causes the inductance of induction coil to change L, and the inductance variation L of induction coil can draw again
The resonance frequency for playing sensing circuit changes f, and pressure P and sensing circuit is humorous on the outside of the open end 10a of such pressure sensor 10
Vibration frequency changes f there are curved line relation as shown in figure 12, this kind of corresponding relationship is pre-stored in the controller of pressure sensor 10
In (such as control single chip computer).In practical application, control system is become by the resonance frequency that mutual inductance principle measures sensing circuit
Change f, controller can extrapolate air pressure in the pot body 20 of cooking apparatus (such as pressure cooker) according to above-mentioned relation.
Therefore, the structure of the pressure sensor 10 is simple, compact, and route is simple, is convenient to mount and dismount, and is quick on the draw, and is conducive to
Simplify the structure and installation procedure of system.
In certain specific embodiments of the invention, induction coil is wound around the periphery of pressure chamber 111, i.e. induction coil
It is located at the outside of pressure chamber 111 and along the circumferentially extending of pressure chamber 111, it is understood that be located at moving iron core for induction coil
Periphery and arranged spaced apart with moving iron core, so that electromagnetic induction can be occurred by ensureing between induction coil and moving iron core, into
And guarantee the accuracy and sensitivity of the open end 10a atmospheric pressure value for the pressure sensor 10 that pressure sensor 10 measures.
Advantageously, the upper end of mobile magnetic core is located in induction coil, and the position of the upper end of mobile magnetic core in the vertical direction
Move the axial length that distance is less than induction coil.
Referring to Figures 1 and 2, when the open end 10a external atmospheric pressure of pressure sensor 10 changes, due to pressure chamber 111
There are pressure differences with the open end 10a external atmospheric pressure of pressure chamber 111, and making flexible sealing fin 12, deformation occurs, and moving iron core can be with
It is moved up and down with the deformation of flexible sealing fin 12.Specifically, moving iron core is located in pressure chamber 111 and under moving iron core
End is connected with flexible sealing fin 12, and the upper end of moving iron core is protruded into induction coil, and moving iron core can be in first position to the
It is moved up and down between two positions, and first position is less than induction coil at a distance from the second position is in the axial direction of moving iron core
Axial length, guarantee moving iron core have always in the process of moving up and down at least part be located at induction coil in, to protect
The normal work of pressure sensor 10 is demonstrate,proved, and then guarantees that pressure sensor 10 can detect the atmospheric pressure value (pressure of system in real time
The open end 10a atmospheric pressure value of force snesor 10).
It is moved in pressure chamber 111 what needs to be explained here is that first position and the second position can be understood as moving iron core
Two dynamic extreme positions, for example, first position for moving iron core towards the extreme position moved in pressure chamber 111 (such as Fig. 2 institute
Position where the moving iron core shown), the second position is the limit position for the direction movement that moving iron core is directed away from pressure chamber 111
Set (position where moving iron core as shown in Figure 1).
Advantageously, stomata 112 is located at 111 top of pressure chamber, and mobile magnetic core and pressure chamber are equipped with elastic component between 111 top
15, the both ends of elastic component 15 are connected with the roof at the top of mobile magnetic core and pressure chamber 111 respectively.
Specifically, as shown in Figure 3 and Figure 4, sensor body 11 extends along the vertical direction (up and down direction as shown in Figure 3)
Column, the pressure chamber 111 of lower end opening is defined in sensor body 11, flexible sealing fin 12 is located at sensor body 11
Lower end is with the lower ending opening of confining pressure chamber 111, and moving iron core is located in pressure chamber 111 and the lower end of moving iron core and flexibility are close
Mounting 12 is connected, and is additionally provided with elastic component 15 in pressure chamber 111, and the upper end of elastic component 15 and the roof of sensor body 11 is interior
Wall is connected, and the lower end of elastic component 15 is connected with the upper end of moving iron core.
When 111 open end 10a external atmospheric pressure of pressure chamber is greater than 111 inner cavity air pressure of pressure chamber, moving iron core is with flexibility
The deformation of diaphragm seal 12 moves up, and elastic component 15 can play the role of buffering, avoid because moving iron core rush it is too big due to biography
Sensor ontology 11 collides；When the open end 10a external atmospheric pressure of pressure chamber 111 is gradually reduced, until the opening of pressure chamber 111
Hold 10a on the outside of air pressure and 111 open end 10a external atmospheric pressure of pressure chamber balance when, moving iron core elastic component 15 restoring force,
It is moved down under the action of self weight, to be back to initial position.
As a result, by the way that elastic component 15 is arranged in pressure chamber 111, elastic component 15 is made to be located at moving iron core and pressure chamber 111
Roof between, guarantee the mobile stability of moving iron core, to extend the service life of pressure sensor 10.
Optionally, elastic component 15 is spring.Specifically, the both ends of spring respectively with the upper end of moving iron core and sensor
The inner wall of the roof of ontology 11 is connected, and the structure of spring is simple, at low cost, advantageously reduces the cost of pressure sensor 10, and
And spring is quick on the draw under external forces, and the induction sensitivity of pressure sensor 10 can be improved, and guarantees pressure sensor
The open end 10a atmospheric pressure value of 10 pressure sensors 10 that can be surveyed in real time and accurately, and can guarantee pressure sensor 10
Measure the accuracy of open end 10a atmospheric pressure value.
Wherein, as shown in Figure 5 and Figure 6, the top of pressure chamber 111 is equipped with overload protection electrode 16, overload protection electrode 16
It is configured to cut off the dress for increasing open end 10a external atmospheric pressure when the top of mobile magnetic core stops and supports overload protection electrode 16
The power supply set.
Specifically, if the open end 10a external atmospheric pressure of pressure chamber 111 is greater than 111 inner cavity air pressure of pressure chamber, flexible sealing
Piece 12 deforms under the action of pressure difference into pressure chamber 111, and moving iron core is as the deformation of flexible sealing fin 12 is towards pressure
It is moved in chamber 111, then induction coil changes according to the change in displacement generation inductance of mobile magnetic core and causes the humorous of sensing circuit
Vibration frequency variation prestores resonance frequency in controller and changes atmospheric pressure value on the outside of corresponding open end 10a, and controller is according to humorous
Vibration frequency variation calculates the air pressure on the outside of the 10a of open end；When the overload of the external atmospheric pressure of the open end 10a of pressure sensor 10,
Moving iron core continues to move up so that it is only supported to the overload protection electrode 16 at 111 top of pressure chamber, the then heating of system
Power supply is closed, so that the open end 10a external atmospheric pressure of pressure chamber 111 is unlikely to excessively high or decline, is overloaded from being formed to system
Protection, guarantees the trouble free service of system.
In other specific embodiments of the invention, sensor body 11 is generally formed into the column of lower ending opening,
The inner wall of sensor body 11 limits pressure chamber 111, and the outer wall and spaced apart from inner walls of sensor body 11 limit accommodating chamber
114, induction coil is wound around on inner wall and is located in accommodating chamber 114.
Referring to Fig. 5, sensor body 11 is formed extends column, sensing along the vertical direction (up and down direction as shown in Figure 5)
Pressure chamber 111 and accommodating chamber 114 are defined in device ontology 11, wherein pressure chamber 111 is located at the middle part of sensor body 11, accommodates
Chamber 114 forms annular and housing is in 111 outside of pressure chamber, i.e., pressure chamber 111 is located in 114 area defined of accommodating chamber
Portion, induction coil are located at the periphery in accommodating chamber 114 and being located at pressure chamber 111, and moving iron core is located in pressure chamber 111, and is moved
Dynamic iron core is located in induction coil in moving process, at least partially.
That is, in the present embodiment, induction coil is located in sensor body 11, moving iron core and induction coil tool
There is independent installation space, is moved easily the installation respectively of iron core and induction coil, avoids moving iron core exposed with induction coil
Outside, protection is formed to it, and 10 total of pressure sensor is respectively positioned in 10 outer wall of pressure sensor, realize that pressure passes
The modularization of sensor 10, is convenient to mount and dismount, and simplifies installation procedure of the pressure sensor 10 in applying working condition.
Wherein, it limits between the outer peripheral surface of mobile magnetic core and the inner peripheral surface of inner wall and is led suitable for what mobile magnetic core moved up and down
To slot.Guarantee that the movement routine of moving iron core allows to real-time and accurate to guarantee the normal work of pressure sensor 10
The open end 10a pressure value for the pressure sensor 10 that ground is surveyed.
Optionally, sensor body 11 is formed as plastic module, for example, sensor body 11 can by Shooting Technique at
Type, processing, manufacture are easy, convenient formation, and processing cost is low, light-weight, and sensor body 11 is plastic material, will not
The induction of induction coil and moving iron core is caused to interfere, guarantees the normal work of pressure sensor 10.
Advantageously, the radial dimension of the open end 10a of sensor body 11 is greater than the radial dimension of pressure chamber 111, thus
Facilitate the importing of the outer sidewind of the open end 10a of pressure chamber 111, and then allows flexible sealing fin 12 according to pressure chamber 111
Deformation occurs in time for open end 10a external atmospheric pressure, guarantees the work sensitivity of pressure sensor 10.
Optionally, movable part 13 is formed as the enclosed electrode being located in flexible sealing fin 12, and induction pieces 14 are to be located at pressure
The fixation electrode at 111 top of chamber.
Specifically, as shown in figure 8, pressure sensor 10 is mainly by sensor body 11, enclosed electrode, fixed electrode and control
Device composition processed, wherein defines the pressure chamber extended along its axial (up and down direction as shown in Figure 8) in sensor body 11
111, one end (lower end as shown in Figure 8) of pressure chamber 111 forms open end, and the other end of sensor body 11 is equipped with and pressure
The stomata 112 that chamber 111 is connected, stomata 112 are connected with outside air, and the roof of pressure chamber 111 is equipped with fixed electrode, pressure chamber
111 open end 10a is equipped with enclosed electrode with the opening of confining pressure chamber 111, when 111 open end 10a external atmospheric pressure of pressure chamber
When raising, being located at the enclosed electrode of 111 open end 10a of pressure chamber, deformation occurs, and electromagnetic induction, fixed electricity occurs with fixed electrode
The deformation quantity of the enclosed electrode sensed is fed back to controller by pole, and resonance frequency is prestored in controller and changes corresponding opening
The atmospheric pressure value on the outside of 10a is held, controller changes the air pressure calculated on the outside of the 10a of open end according to resonance frequency.Therefore, the present embodiment
Pressure sensor 10 structure it is simpler, number of components is few, and production cost is low.
In specific example of the invention, stomata 112 includes two, and two intervals of stomata 112 are provided with sensor body
11 top.Referring to 8, the top of sensor body 11 sets that there are two stomata 112 arranged spaced apart, each stomata 112 and pressures
Power chamber 111 is connected, when the open end 10a external atmospheric pressure of pressure chamber 111 and 111 inner cavity air pressure of pressure chamber formation pressure difference, such as
The open end 10a external atmospheric pressure of pressure chamber 111 be greater than 111 inner cavity air pressure of pressure chamber, enclosed electrode deformation occurs and at least one
Point move up, by the way that two stomatas 112 are arranged at the top of sensor body 11, allow system external air flow rapidly
Into in pressure chamber 111, to guarantee that ambient pressure can be equal with 111 inner cavity air pressure of pressure chamber, guarantee pressure sensor 10
Normal work, be further ensured that the accuracy for the pressure value that pressure sensor 10 measures.
What needs to be explained here is that the open end 10a external atmospheric pressure of pressure chamber 111 refers to the air pressure of system, i.e. pressure
The operating condition air pressure of sensor 10 when in use, ambient pressure refer to the ambient pressure of pressure sensor 10, it can are understood as
Atmospheric gas pressure.
Advantageously, the lower surface of fixed electrode is equipped with overload protection electrode 16, and overload protection electrode 16 is configured to when close
At least part of envelope electrode stops the electricity cut off when supporting overload protection electrode 16 for increasing the device of open end 10a external atmospheric pressure
Source.
Specifically, when moving iron core moves up only to the overload protection electrode 16 to 111 top of pressure chamber, system
Power supply is closed, so that the open end 10a external atmospheric pressure of pressure chamber 111 is unlikely to excessively high, forms overload protection to system, thus
Advantageously ensure that the trouble free service of system.
Below with reference to the cooking apparatus for specifically describing embodiment according to a second aspect of the present invention.
Cooking apparatus according to an embodiment of the present invention includes pot body 20, pot cover 30 and the pressure sensing according to above-described embodiment
Device 10 defines cavity in pot body 20, and pot cover 30 is movably located in pot body 20 to open and close cavity, sensor body
11, flexible sealing fin 12, movable part 13 and induction pieces 14 are located on pot cover 30, and controller is located in pot body 20.
As a result, by the way that pressure sensor 10 is arranged on cooking apparatus, so that cooking apparatus is at work, pressure sensor
10 can in real time and be accurately detected cooking apparatus 20 inner cavity of pot body air pressure, realize inspection to cooking apparatus working condition
It surveys, guarantees the normal work of cooking apparatus.And the structure of the pressure sensor 10 is simple, compact, and route is simple, is conducive to letter
Change the structure and route installation procedure of cooking apparatus, that is, simplifies the pot body 20 of cooking apparatus and the assembly of pot cover 30, to reduce
The production difficulty of cooking apparatus, and then improve the production efficiency of cooking apparatus.
Below by taking pressure cooker as an example, and pressure according to an embodiment of the present invention is specifically described in conjunction with attached drawing to Fig. 1 to Figure 12
Pot A.
Pressure cooker A according to an embodiment of the present invention includes pot body 20, pot cover 30 and the pressure sensing according to above-described embodiment
Device 10 defines cavity in pot body 20, and pot cover 30 is movably located in pot body 20 to open and close cavity, sensor body
11, flexible sealing fin 12, movable part 13 and induction pieces 14 are located on pot cover 30, and controller is located in pot body 20.
In other words, pressure cooker A is mainly made of pot body 20, pot cover 30 and pressure sensor 10, wherein limit in pot body 20
Surely there is the cavity of open upper end, interior pot is equipped in cavity, user can pick and place interior pot by the open end of pot body 20, and pot cover 30 can
It is located at the upper end of pot body 20 actively to open and close cavity, sensor body 11, the flexible sealing fin of pressure sensor 10
12, movable part 13 and induction pieces 14 are located on the pot cover 30 of pressure cooker A, and the controller of pressure sensor 10 is located at pressure cooker A's
In pot body 20.
At work, the cavity chamber pressure of pressure cooker A gradually rises pressure cooker A, when the cavity inner cavity air pressure of pressure cooker A
Greater than the sensor body 11 of pressure sensor 10 111 inner cavity air pressure of pressure chamber when, due to the flexibility in sensor body 11
There are pressure differences for 12 two sides of diaphragm seal, bring it about deformation, and drive movable part 13 mobile to 111 inner cavity of pressure chamber, in this process
In, induction pieces 14 can sense the displacement information of movable part 13, the displacement information sensed then be fed back to controller, so
Controller obtains 10 external atmospheric pressure of pressure sensor according to the displacement information received afterwards, i.e., controller is according to the displacement received
The cavity inner cavity air pressure of information acquisition pressure cooker A.
For example, as shown in Figures 5 to 7, if the movable part 13 of pressure sensor 10 forms moving iron core, induction pieces 14 are sense
Coil is answered, flexible sealing fin 12 forms Packing spring piece, wherein the coefficient of elasticity of Packing spring piece is k, and pressure sensing area is
The air pressure pressure generated in 20 cavity of pot body of A, pressure cooker A is P, and the Packing spring piece of pressure sensor 10 is by 20 chamber of pot body
The outside thrust of intracorporal air pressure is F=PA, and Packing spring piece generates deformation under the action of 20 cavity air pressure of pot body, and drives
The position x=F/k=PA/k that moving iron core moves up；Moving iron core displacement x causes the inductance of induction coil to change L, induction
The inductance variation L of coil can cause the resonance frequency of sensing circuit to change f again, air pressure pressure P and sensing in such pot body 20
For the resonance frequency variation f of circuit there are curved line relation as shown in figure 12, this kind of corresponding relationship is pre-stored in pressure sensor 10
Controller (such as control single chip computer) in.In practical application, control system measures the humorous of sensing circuit by mutual inductance principle
Vibration frequency changes f, and controller can extrapolate air pressure in the pot body 20 of pressure cooker A, the standard of the pressure value measured according to above-mentioned relation
Exactness is high.
As a result, by the way that pressure sensor 10 is arranged on pressure cooker A, so that pressure cooker A is at work, pressure sensor 10
Can in real time and be accurately detected pressure cooker A 20 inner cavity of pot body air pressure, realize detection to pressure cooker A working condition,
Guarantee the normal work of pressure cooker A.And the structure of the pressure sensor 10 is simple, compact, and route is simple, is conducive to simplify pressure
The structure and route installation procedure of power pot A simplifies the pot body 20 of pressure cooker A and the assembly of pot cover 30, to reduce pressure cooker A
Production difficulty, and then improve pressure cooker A production efficiency.
Optionally, pot cover 30 may be reversed ground and be connected with pot body 20, and controller and induction pieces 14 are by connection or wirelessly
Connection.Specifically, as shown in Figure 9 and Figure 10, in the present embodiment, pot cover 30 is pivotly connected with the side of pot body 20, from
And open and close the open end of cavity.
The controller of pressure sensor 10 is located in pot body 20, and the induction pieces 14 of pressure sensor 10 are located at pressure cooker A
Pot cover 30 in, induction pieces 14 and controller can be by connections, for example, in the pivoted position of pot cover 30 and pot body 20
Equipped with route, the both ends of route are connected with induction pieces 14 and controller respectively, guarantee the signal between induction pieces 14 and controller
Transmitting.Since the structure of the pressure sensor 10 is simple, route is simple, therefore is conducive to simplify the structure and route of pressure cooker A
Installation procedure to reduce the production difficulty of pressure cooker A, and then improves the production efficiency of pressure cooker A.
Certainly, the present invention is not limited thereto, and controller and the induction pieces 14 of pressure sensor 10 can also be by wirelessly connecting
It connects, guarantees that the signal between controller and induction pieces 14 transmits, by the way that controller and induction pieces 14 to be wirelessly connected, protecting
On the basis of the signal transmitting of both cards, the connection type between the pot cover 30 of pressure cooker A and pot body 20, i.e. pressure cooker can simplify
The pot body 20 of A and the installation site of pot cover 30 and connection type do not interfere with the electromagnetism sense of the internal structure of pressure sensor 10
It answers, that is, does not interfere with the normal work of pressure sensor 10, on the basis of guaranteeing that pressure sensor 10 works normally, reduce
Connection process between the pot cover 30 and pot body 20 of pressure cooker A, and then improve the production efficiency of pressure cooker A.
Optionally, pot cover 30 is removably connected with pot body 20, and controller and induction pieces 14 are wirelessly connected.Specifically, such as
Shown in Figure 11, the pot cover 30 and pot body 20 of pressure cooker A is detachably connected, when pressure cooker A when in use, pot cover 30 can be buckled
The open end for closing the cavity of pot body 20 in pot body 20 is closed, guarantees the normal work of pressure cooker A；After pressure cooker A use,
Pot cover 30 can be removed from pot body 20, pressure sensor 10 does not work at this time, convenient to separate clearly to pot body 20 and pot cover 30
It washes, guarantees the cleaning effect to pressure cooker A.
Preferably, pot cover 30 is equipped with column handle, and column handle is formed as sensor body 11, efficiently utilizes pot
The inner space of lid 30.Referring to Fig.1 1, the middle part of pot cover 30 is equipped with the column handle for protruding from 30 outer surface of pot cover, column handle
Substantially extend along the axial direction of pot cover 30 (up and down direction as shown in figure 11), the pressure chamber of open at its lower end is defined in column handle
111, the lower end of column handle is equipped with flexible sealing fin 12 with the lower ending opening of confining pressure chamber 111, and the upper end of column handle is set
The stomata 112 for having and being connected to pressure chamber 111 and ambient atmosphere.
When the cavity chamber pressure of pressure cooker A is greater than 111 chamber pressure of pressure chamber, i.e. the cavity chamber pressure of pressure cooker A
When greater than external atmosphere pressure, deformation occurs and drives the movable part 13 being located in flexible sealing fin 12 living upwards for flexible sealing fin 12
Dynamic, induction pieces 14 sense the movement of movable part 13, and the displacement information of the movable part 13 sensed is fed back to controller, control
Device processed calculates the cavity air pressure of the pot body 20 of pressure cooker A according to the displacement information received.
Certainly, the setting position of pressure sensor 10 of the invention is not limited to this, and pressure sensor 10 can also be located at
The off-centered position of the pot cover 30 of pressure cooker A, when flexible sealing fin being avoided to be damaged, because of the high-temperature steam in pot body 20
Leak and scald the hand of user.
Further, be additionally provided with overload protection electrode 16 at the top of the pressure chamber 111 of column handle, when movable part 13 at least
When a part is only arrived on overload protection electrode 16, the power supply for increasing the cavity air pressure of the pot body 20 of pressure cooker A is cut off, is made
The cavity air pressure of pressure cooker A maintains constant air pressure or decline, plays the role of overload protection to pressure cooker A, guarantees pressure
The normal work of pot A, avoids being damaged because operating pressure is too high, use is safe and reliable.
Optionally, sensor body 11 and pot cover 30 are integrally formed.Integrally formed structure can not only guarantee to press as a result,
The properity stability of power pot A, and facilitate molding, be simple to manufacture, and eliminate extra assembly parts and connection work
Sequence substantially increases the assembly efficiency of pressure cooker A, guarantees the connection reliability of sensor body 11 and pot cover 30, furthermore, one
The integral strength and high stability of the structure of formation, assembling is more convenient, longer life expectancy.
In some specific examples of the invention, pot cover 30 is equipped with strip-type handle (not shown), and strip-type handle is across 30
Two sides, pressure sensor 10 are located at the side in strip-type handle.
Specifically, strip-type handle can radially extending along pot cover 30, wherein the both ends of strip-type handle respectively with pot cover 30
Upper surface be connected, and one end of strip-type handle is located at the side at the center of pot cover 30, and the other end of strip-type handle is located at pot cover
The other side at 30 center.
Further, the chamber for installing pressure sensor 10 is defined in strip-type handle, pressure sensor 10 is located at
In chamber, and the side being located in strip-type handle, for example, pressure sensor 10 can be arranged adjacent to the end of strip-type handle, knot
Structure is simple, easy to assembly, efficiently utilizes the space in strip-type handle, room for promotion utilization rate.
In other specific embodiments of the invention, sensor body 11 is connected by screw to pot cover 30.Specifically
Ground, can be according to the suitable pressure sensor 10 of the selections such as power, the model of pressure cooker A, and it is convenient to replace, and assembly and disassembly are easy, maintenance
It is convenient.
Wherein, the two sides of the open end 10a of sensor body 11 are respectively equipped with the link block for downwardly and outwardly tilting extension
113, the upper end of link block 113 is connected with sensor body 11, and the outside of link block 113 is connected with pot cover 30.
Referring to Fig. 9, sensor body 11 forms the column extended along the vertical direction, and the lower end of sensor body 11, which is formed, opens
Mouth end 10a, wherein the lower end of sensor body 11 is equipped with link block 113 positioned opposite, pressure sensor 10 and pressure cooker A's
When pot cover 30 assembles, the link block 113 in sensor body 11 is connect with pot cover 30, to realize pressure sensor 10 and pressure
The assembling of the pot cover 30 of pot A.
Advantageously, the channel being connected to open end 10a, the radial dimension of the lower end in channel are limited between link block 113
Greater than the radial dimension of upper end, the radial dimension of the upper end in channel is greater than the radial dimension of open end 10a.
Specifically, as shown in Figure 5 and Figure 6, and Fig. 7 is combined, the lower end of sensor body 11 is equipped with link block 113, pressure
The pot cover 30 of pot A is equipped with installing port, and the pot cover 30 of mode and pressure cooker A that link block 113 can be connected through a screw thread is realized
Assembling, wherein limit channel between link block 113, and channel respectively with the outside of the open end 10a of pressure chamber 111 and
20 inner cavity of pot body of pressure cooker A is connected, and guarantees that the air-flow of 20 inner cavity of pot body of pressure cooker A can flow to pressure biography by channel
On the outside of the open end 10a of sensor 10, to be conducive to the inspection for the 20 inner cavity air pressure of pot body that pressure sensor 10 is realized to pressure cooker A
It surveys.
Further, in the axial direction of pressure sensor 10, the radial dimension of the lower end in channel be greater than the upper end in channel
Radial dimension, and the radial dimension of the upper end in channel is greater than the radial dimension of the open end 10a of pressure chamber 111, it can be to pressure
Guiding is played the role of in the air-flow flowing of 20 inner cavity of pot body of pot A, guarantees that the air-flow of 20 inner cavity of pot body can be acted on rapidly
In the flexible sealing fin 12 of pressure sensor 10, so guarantee pressure sensor 10 can in real time and rapidly detect pressure cooker
The atmospheric pressure value of 20 inner cavity of pot body of A, it is safe and reliable.
The structure of pressure cooker A is simple, compact as a result, pot cover 30 and the connection structure of pot body 20 and to connect process simple,
Pressure cooker A work when, pressure sensor 10 can in real time and be accurately detected pressure cooker A 20 inner cavity of pot body air pressure, it is right
Overload protection is played the role of in the work of pressure cooker A, to guarantee the normal work of pressure cooker A, use is safe, user experience
It is good.
Other of cooking apparatus (such as pressure cooker A) according to an embodiment of the present invention are constituted and are operated general for this field
All be for logical technical staff it is known, be not detailed herein.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (24)
1. a kind of pressure sensor characterized by comprising
Sensor body, defines pressure chamber open at one end in the sensor body, the sensor body be equipped with
The stomata of the pressure chamber conducting, the stomata is connected with outside air so that the air pressure of the pressure chamber inner cavity is equal to extraneous gas
Pressure；
Flexible sealing fin, the flexible sealing fin are located at the open end of the sensor body to close the open end, described
Flexible sealing fin is configured to when the open end external atmospheric pressure is greater than air pressure in the pressure chamber towards in the pressure chamber
Deformation occurs；
Movable part, the movable part are located at the flexible sealing on piece and are moved according to the deformation of the flexible sealing fin；
Induction pieces, the induction pieces are spaced apart setting with the movable part, and the induction pieces are configured to be suitable for incuding the work
The displacement of moving part；
Controller, described in the controller is connected with the induction pieces and is calculated with the displacement information that is sensed according to the induction pieces
Air pressure on the outside of open end.
2. pressure sensor according to claim 1, which is characterized in that the lower ending opening of the sensor body, it is described
Flexible sealing fin along the vertical direction can deformation occurs.
3. pressure sensor according to claim 1 or 2, which is characterized in that the movable part is formed as mobile magnetic core, institute
It states induction pieces and is formed as induction coil, the induction coil changes and draws according to the change in displacement of mobile magnetic core generation inductance
The resonance frequency variation of sensing circuit is played, the resonance frequency is prestored in the controller and changes outside the corresponding open end
The atmospheric pressure value of side, the controller calculate the air pressure on the outside of the open end according to resonance frequency variation.
4. pressure sensor according to claim 3, which is characterized in that the induction coil is wound around the pressure chamber
Periphery.
5. pressure sensor according to claim 4, which is characterized in that the upper end of the mobile magnetic core is located at the induction
In coil, and the shift length of the upper end of the mobile magnetic core in the vertical direction is less than the axial length of the induction coil.
6. pressure sensor according to claim 3, which is characterized in that the stomata is located at the top of the pressure chamber, institute
State and be equipped with elastic component between at the top of mobile magnetic core and the pressure chamber, the both ends of the elastic component respectively with the mobile magnetic core
Top is connected with the roof of the pressure chamber.
7. pressure sensor according to claim 6, which is characterized in that the elastic component is spring.
8. pressure sensor according to claim 3, which is characterized in that the top of the pressure chamber is equipped with overload protection electricity
Pole, the overload protection electrode are configured to the cutting when the overload protection electrode is only supported in the top of the mobile magnetic core and are used for
Increase the power supply of the device of the open end external atmospheric pressure.
9. pressure sensor according to claim 3, which is characterized in that the sensor body is generally formed into lower end and opens
The column of mouth, the inner wall of the sensor body limit the pressure chamber, the outer wall of the sensor body and the inner wall
It is spaced apart and limits accommodating chamber, the induction coil is wound around on the inner wall and is located in the accommodating chamber.
10. pressure sensor according to claim 9, which is characterized in that the outer peripheral surface of the mobile magnetic core with it is described interior
The guide groove moved up and down suitable for the mobile magnetic core is limited between the inner peripheral surface of wall.
11. pressure sensor according to claim 9, which is characterized in that the sensor body is formed as plastic module.
12. pressure sensor according to claim 9, which is characterized in that the open end of the sensor body
Radial dimension is greater than the radial dimension of the pressure chamber.
13. pressure sensor according to claim 1, which is characterized in that the movable part is formed as being located at the flexibility
Enclosed electrode on diaphragm seal, the induction pieces are the fixation electrode being located at the top of the pressure chamber.
14. pressure sensor according to claim 13, which is characterized in that the stomata includes two, two gas
Hole interval is provided with the top of the sensor body.
15. pressure sensor according to claim 13, which is characterized in that the lower surface of the fixed electrode is equipped with overload
Guard electrode, the overload protection electrode are configured to only support the overload protection electricity when at least part of the enclosed electrode
The power supply for increasing the device of the open end external atmospheric pressure is cut off when pole.
16. a kind of cooking apparatus characterized by comprising
Pot body defines cavity in the pot body；
Pot cover, the pot cover are movably located in the pot body to open and close the cavity；
Pressure sensor described in any one of -15 according to claim 1, the sensor body, the flexible sealing fin, institute
It states movable part and the induction pieces is located on the pot cover, the controller is located in the pot body.
17. cooking apparatus according to claim 16, which is characterized in that ground and the pot body phase may be reversed in the pot cover
Even, the controller and the induction pieces pass through connection or wireless connection.
18. cooking apparatus according to claim 16, which is characterized in that the pot cover removably with the pot body phase
Even, the controller and the induction pieces are wirelessly connected.
19. cooking apparatus according to claim 16, which is characterized in that the pot cover is equipped with column handle, the column
Shape handle is formed as the sensor body.
20. cooking apparatus according to claim 19, which is characterized in that the sensor body and pot cover one at
Type.
21. cooking apparatus according to claim 16, which is characterized in that the pot cover is equipped with strip-type handle, the item
Shape handle is located at the side of the strip-type handle across the two sides of the pot cover, the pressure sensor.
22. cooking apparatus according to claim 16, which is characterized in that the sensor body and the pot cover pass through spiral shell
Nail connection.
23. cooking apparatus according to claim 22, which is characterized in that the two of the open end of the sensor body
Side is respectively equipped with the link block for downwardly and outwardly tilting extension, and the upper end of the link block is connected with the sensor body, described
The outside of link block is connected with the pot cover.
24. cooking apparatus according to claim 23, which is characterized in that limited between the link block and the opening
The channel of connection is held, the radial dimension of the lower end in the channel is greater than the radial dimension of upper end, the radial direction of the upper end in the channel
Size is greater than the radial dimension of the open end.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611147655.7A CN106618172B (en) | 2016-12-13 | 2016-12-13 | Pressure sensor and cooking apparatus with it |
| PCT/CN2016/112443 WO2018107522A1 (en) | 2016-12-13 | 2016-12-27 | Pressure detection device and cooking appliance having same |
| US16/338,009 US11399651B2 (en) | 2016-12-13 | 2016-12-27 | Pressure detection device with improved control precision of pressure cooking appliance |
| ES16923813T ES2877804T3 (en) | 2016-12-13 | 2016-12-27 | Pressure sensing device and cooking appliance containing it |
| KR1020197009194A KR102174736B1 (en) | 2016-12-13 | 2016-12-27 | Pressure detection device and cooking utensil having same |
| EP16923813.6A EP3505020B1 (en) | 2016-12-13 | 2016-12-27 | Pressure detection device and cooking appliance having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611147655.7A CN106618172B (en) | 2016-12-13 | 2016-12-13 | Pressure sensor and cooking apparatus with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106618172A CN106618172A (en) | 2017-05-10 |
| CN106618172B true CN106618172B (en) | 2018-12-21 |
Family
ID=58824513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611147655.7A Active CN106618172B (en) | 2016-12-13 | 2016-12-13 | Pressure sensor and cooking apparatus with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106618172B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3581074B1 (en) * | 2017-02-10 | 2023-12-27 | Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co., Limited | Float valve motion detection device, pot cover assembly and pressure cooking appliance |
| CN109744861A (en) * | 2017-11-02 | 2019-05-14 | 佛山市顺德区美的电热电器制造有限公司 | Pressure-detecting device for cooking apparatus and the cooking apparatus with it |
| WO2019085602A1 (en) * | 2017-11-02 | 2019-05-09 | 佛山市顺德区美的电热电器制造有限公司 | Pressure detection device used for cooking utensil and cooking utensil having same |
| CN107957313A (en) * | 2017-11-02 | 2018-04-24 | 美的集团股份有限公司 | Pressure-detecting device and its calibration method, kitchen appliance |
| CN109793422A (en) * | 2017-11-16 | 2019-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Pressure sensor and pressure cooker with it |
| CN110118627A (en) * | 2018-02-06 | 2019-08-13 | 美的集团股份有限公司 | Pressure-detecting device, kitchen appliance for kitchen appliance |
| CN108272339A (en) * | 2018-03-24 | 2018-07-13 | 深圳市信为科技发展有限公司 | Displacement sensor, electric pressure cooking saucepan and cooking control method |
| CN110351911B (en) * | 2018-04-02 | 2022-02-11 | 佛山市顺德区美的电热电器制造有限公司 | Anti-overflow device and cooking utensil |
| CN110338654B (en) * | 2018-04-02 | 2021-06-15 | 佛山市顺德区美的电热电器制造有限公司 | Anti-overflow device and cooking utensil |
| CN109459181A (en) * | 2018-10-12 | 2019-03-12 | 惠州市铂蓝德科技有限公司 | Pressure cooker sensor and its fault self-detection method |
| CN109480613B (en) * | 2018-11-09 | 2021-04-13 | 青岛歌尔微电子研究院有限公司 | Detection structure and control method for internal air pressure of electric pressure cooker and electric pressure cooker |
| CN112362219A (en) * | 2020-10-20 | 2021-02-12 | 佛山市朗盛科技有限公司 | Pressure sensor based on metal shielding inductance type pressure cooker |
| CN116481704A (en) * | 2022-01-17 | 2023-07-25 | 宝山钢铁股份有限公司 | Metal steam pressure detection device and detection method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262402A (en) * | 1999-03-19 | 2000-09-26 | Zojirushi Corp | Pressure cooker |
| CN201859032U (en) * | 2010-10-15 | 2011-06-08 | 浙江苏泊尔家电制造有限公司 | Capacitance pressure sensor and electric pressure cooker equipped with the capacitance pressure sensor |
| CN201987350U (en) * | 2011-01-26 | 2011-09-28 | 美的集团有限公司 | Pressure detection control device of electric pressure cooker |
| CN102519654A (en) * | 2011-12-02 | 2012-06-27 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
| CN102519659A (en) * | 2011-12-02 | 2012-06-27 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
| CN202386484U (en) * | 2011-12-16 | 2012-08-22 | 美的集团有限公司 | Pot cover with pressure detection device |
| CN203789698U (en) * | 2014-03-20 | 2014-08-27 | 奔腾电器（上海）有限公司 | Device for detecting actions of electric pressure appliance float-controlled valve |
| CN105125069A (en) * | 2015-10-19 | 2015-12-09 | 珠海格力电器股份有限公司 | Pressure detection structure and electric pressure cooker |
| CN105286498A (en) * | 2015-10-21 | 2016-02-03 | 杭州永耀科技有限公司 | Pressure-control type electric pressure cooker |
| CN205642706U (en) * | 2016-04-29 | 2016-10-12 | 武汉汉升汽车传感器系统有限责任公司 | High -pressure common -rail pressure sensor |
-
2016
- 2016-12-13 CN CN201611147655.7A patent/CN106618172B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000262402A (en) * | 1999-03-19 | 2000-09-26 | Zojirushi Corp | Pressure cooker |
| CN201859032U (en) * | 2010-10-15 | 2011-06-08 | 浙江苏泊尔家电制造有限公司 | Capacitance pressure sensor and electric pressure cooker equipped with the capacitance pressure sensor |
| CN201987350U (en) * | 2011-01-26 | 2011-09-28 | 美的集团有限公司 | Pressure detection control device of electric pressure cooker |
| CN102519654A (en) * | 2011-12-02 | 2012-06-27 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
| CN102519659A (en) * | 2011-12-02 | 2012-06-27 | 美的集团有限公司 | Pressure detection device and electric pressure cooker adopting same |
| CN202386484U (en) * | 2011-12-16 | 2012-08-22 | 美的集团有限公司 | Pot cover with pressure detection device |
| CN203789698U (en) * | 2014-03-20 | 2014-08-27 | 奔腾电器（上海）有限公司 | Device for detecting actions of electric pressure appliance float-controlled valve |
| CN105125069A (en) * | 2015-10-19 | 2015-12-09 | 珠海格力电器股份有限公司 | Pressure detection structure and electric pressure cooker |
| CN105286498A (en) * | 2015-10-21 | 2016-02-03 | 杭州永耀科技有限公司 | Pressure-control type electric pressure cooker |
| CN205642706U (en) * | 2016-04-29 | 2016-10-12 | 武汉汉升汽车传感器系统有限责任公司 | High -pressure common -rail pressure sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106618172A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106618172B (en) | Pressure sensor and cooking apparatus with it | |
| CN106490968B (en) | Pressure cooking equipment and its pressure-detecting device | |
| JP2022185097A5 (en) | ||
| WO2018107522A1 (en) | Pressure detection device and cooking appliance having same | |
| JP4714713B2 (en) | Pressure cooker | |
| CN202908704U (en) | Physical examination integrated machine | |
| CN207439591U (en) | For the pressure-detecting device of cooking apparatus and with its cooking apparatus | |
| CN204147015U (en) | A kind of pressure sensor assembly and pressure-detecting device | |
| CN109752181A (en) | Magnetic valve performance test macro | |
| CN202386484U (en) | Pot cover with pressure detection device | |
| CN210277128U (en) | Wearable device | |
| CN205825998U (en) | A kind of testboard of transmitter functions | |
| CN207439592U (en) | For the pressure-detecting device of cooking apparatus and with its cooking apparatus | |
| CN208658928U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it | |
| CN207456669U (en) | For the pressure-detecting device of kitchen appliance and with its kitchen appliance | |
| CN103389053B (en) | Compressor cylinder mean inside diameter measuring instrument | |
| CN208435249U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it | |
| CN208784416U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it | |
| CN208435250U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it | |
| CN208435252U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it | |
| CN210953206U (en) | Pressure sensor | |
| CN208784397U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it | |
| CN207456670U (en) | For the pressure-detecting device and kitchen appliance of kitchen appliance | |
| CN208435257U (en) | Pressure sensor and pressure cooker with it | |
| CN208435251U (en) | Pressure-detecting device for cooking apparatus and the cooking apparatus with it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190328 Address after: 528311 4 Global Innovation Center, industrial road, Beijiao Town, Shunde District, Foshan, Guangdong, China Co-patentee after: Midea Group Co., Ltd. Patentee after: Guangdong Midea white Appliance Technology Innovation Center Co., Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Patentee before: Midea Group Co., Ltd. |