A kind of new high-pressure pressure sensor and electric pressure cooking saucepanTechnical field
The present invention relates to pressure sensing devices technical field, and in particular to a kind of new high-pressure pressure sensor and onePlant the electric pressure cooking saucepan with the pressure-detecting device.
Background technology
Electric pressure cooking saucepan is a kind of pan in common kitchen on the market, and it can be lifted by liquid compared with boiling point under hyperbarThis physical phenomenon, pressure is applied to water, water is reached higher temperature without boiling, to accelerate the efficiency of fricassee.And each electric pressure cooking saucepan is respectively provided with the internal maximum pressure value that can be born, when its internal pressure is easy for beyond the maximum pressure valueGeneration explosion accident；And present family is to cooking the requirement of more ambrosia with electric pressure cooking saucepan, therefore electric pressure cooking saucepan is neededHave and more accurate detection and control are done to pressure, can just cook more delicious food, and electric pressure cooking saucepan on the market nowIt is general that temperature sensor is only housed, relation is generally corresponding to by the kettle temperature that detects and pressure, electric pressure cooking saucepan must be calculatedInternal pressure, but because it is not that directly pot inner pressure is measured, therefore it is influenceed very big by various external conditions；ThanSuch as different food and the difference of amount, all very big the judgement to pressure accuracy can be had influence on, so as to influence to cook delicious foodThe mouthfeel of thing, situation it is serious even can constitute potential safety hazard.
The content of the invention
To overcome drawbacks described above, the purpose of the present invention is to be to provide a kind of new high-pressure pressure sensor and voltagePower pot.
The purpose of the present invention is achieved through the following technical solutions：
The present invention is a kind of new high-pressure pressure sensor, including：Noumenal seat, the top of the noumenal seat is provided with air inlet,The air inlet is connected with the inner chamber body on noumenal seat, and piston, and outer wall and the inner chamber of the piston are provided with the inner chamber bodyThe inwall of body is tangent, is provided with the piston in magnet ring, the opening of the inner chamber body bottom and is provided with set screw by screw thread；InstituteState and flexible part is abutted between piston and set screw upper surface, the outer chamber of annular, institute are equipped with the outside of the inner chamber bodyState and coil is provided with outer chamber, the coil is connected with outside oscillating circuit.
Further, the outer wall of the top land is provided with annular groove, and the annular groove is provided with piston ring, the pistonThe outside of ring and the inwall of inner chamber body are tangent.
Further, the bottom of the noumenal seat is provided with lower cover, and the lower tops are provided with buckle, and the noumenal seat is provided withThe screens being engaged with the buckle.
Further, the elastic component is spring；The upper surface of the set screw is provided with the lower locating dowel raised up, instituteState and spring retention chamber is provided with piston, the bottom of chamber of the spring retention chamber is provided with downwardly convex upper positioning column, the springTop and bottom be respectively sleeved in the upper positioning column and lower locating dowel.
Further, the noumenal seat is provided with the lug plate being connected with coil, the lug plate and outside concussion electricityRoad is connected.
Further, the bottom surface of the set screw is provided with the regulation jack caved inward.
A kind of electric pressure cooker of the present invention, including：Pot and pressure-detecting device as described above, the pressure detecting dressThe noumenal seat put is provided with positioning hole, and it is fixed on outside the interior pot courage of pot by the positioning hole, the pressure detecting dressThe air inlet put is by pipeline with being connected inside the interior pot courage.
The present invention is directly measured directly with being connected inside electric pressure cooking saucepan to the pressure inside electric pressure cooking saucepan, is measuredAccuracy is high, and effect is good.
Brief description of the drawings
For ease of explanation, the present invention is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is the decomposition texture schematic diagram of pressure sensor of the present invention；
Fig. 2 is the cross-sectional view of pressure sensor of the present invention；
Fig. 3 is the cross-sectional view of electric pressure cooking saucepan of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and ExamplesThe present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and withoutIt is of the invention in limiting.
Fig. 1 to Fig. 2 is referred to, the present invention is a kind of new high-pressure pressure sensor, including：Noumenal seat 2, the bodyThe top of seat 2 is provided with air inlet 10, and the air inlet 10 is connected with the inner chamber body on noumenal seat 2, is provided with the inner chamber bodyPiston 4, and the outer wall and the inwall of inner chamber body 14 of the piston 4 are tangent, and magnet ring 5, the bottom of inner chamber body 14 are provided with the piston 4Set screw 8 is provided with by screw thread in the opening in portion；Flexible part 6 is abutted between the piston 4 and the upper surface of set screw 8,The outside of the inner chamber body 14, which is equipped with the outer chamber of annular, the outer chamber, is provided with coil 7, the coil 7 and outsideOscillating circuit is connected.
The present invention operation principle be specially：Because pressure-detecting device is connected by air inlet 10 with the inside of potConnect, therefore when pot nside air pressure increases, air pressure just promotes piston 4 to overcome the elastic force of elastic component 6 to move downward；And piston 4 willThe magnet ring 5 on the inside of it is driven together to move downward, i.e., magnet ring 5 moves downward opposite bores body 14；Because coil 7 is affixed toIn outer chamber, therefore when magnet ring 5 is moved downward, it enters the inductance value of coil 7 by changing；Coil 7 is by the inductance value collectedSignal is converted into electric signal, is delivered to the oscillating circuit of outside；Pressure value is scaled by outside measuring circuit again；When in potAir pressure is reduced, and piston 4 will carry out resilience in the presence of elastic component 6, makes piston 4 that the magnet ring 5 on the inside of it will be driven together upwardMotion, i.e. magnet ring 5 move the coil 7 in opposite bores body 14 upwards, so as to change the inductance value into coil 7；Coil 7 willThe inductance value signal collected is converted into electric signal, is delivered to the oscillating circuit of outside.
Further, the outer wall at the top of piston 4 is provided with annular groove, and the annular groove is provided with piston ring 3, the workThe outside of plug ring 3 and the inwall of inner chamber body 14 are tangent.
Further, the bottom of the noumenal seat 2 is provided with lower cover 9, and the top of lower cover 9 is provided with buckle, the noumenal seat 2Provided with the screens being engaged with the buckle.
Further, the elastic component 6 is spring；The upper surface of the set screw 8 is provided with the lower locating dowel raised up12, spring retention chamber is provided with the piston 4, the bottom of chamber of the spring retention chamber is provided with downwardly convex upper positioning column 11,The top and bottom of the spring are respectively sleeved in the upper positioning column 11 and lower locating dowel 12.
Further, the noumenal seat 2 is provided with the lug plate 1 being connected with coil, the lug plate 1 and outside concussionCircuit is connected.
Further, the bottom surface of the set screw 8 is provided with the regulation jack 13 caved inward.It need to be pulled during regulation by hexagonalThe insertion of the instruments such as hand is adjusted in jack 13 and rotated, and can realize and the position of set screw 8 is adjusted；Due to magnetic core,There is difference between coil, spring individual, adjustable screw 8 changes spring original position, also just changes the damping system of springNumber, can make linear during product export reach unanimously.
It refer to Fig. 3, a kind of electric pressure cooking saucepan of the invention, including：Pot and pressure-detecting device as described above 100,The noumenal seat of the pressure-detecting device 100 is provided with mounting hole, and it is fixed on the interior pot courage 200 of pot by the mounting holeOutside, the air inlet of the pressure-detecting device 100 is connected by pipeline 400 with the thief hatch 201 on the interior pot courage 200；Screen pack 202 is provided with the thief hatch 201 of the interior pot courage 200.The pot includes：Interior pot courage 200 and outer pan body 300, instituteInterior pot courage 200 is stated to be arranged in outer pan body 300.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present inventionAny modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.