CN208805736U - A kind of electromagnetic induction temperature measurement circuit and induction temperature sensing device and cooker - Google Patents
A kind of electromagnetic induction temperature measurement circuit and induction temperature sensing device and cooker Download PDFInfo
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- CN208805736U CN208805736U CN201820252496.5U CN201820252496U CN208805736U CN 208805736 U CN208805736 U CN 208805736U CN 201820252496 U CN201820252496 U CN 201820252496U CN 208805736 U CN208805736 U CN 208805736U
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Abstract
The utility model discloses a kind of electromagnetic induction temperature measurement circuit and induction temperature sensing devices and cooker, electromagnetic induction temperature measurement circuit includes magnetoelectricity conversion sub-circuit, detection sub-circuit, drive sub-circuits and micro-chip processor, and wherein the output end of magnetoelectricity conversion sub-circuit is electrically connected with the input terminal of detection sub-circuit；The output end of detection sub-circuit is electrically connected with the input terminal of micro-chip processor；The output end of micro-chip processor is electrically connected with the input terminal of drive sub-circuits；The output end of drive sub-circuits is electrically connected with the input terminal of magnetoelectricity conversion sub-circuit.The utility model obtains alternating magnetic field by magnetoelectricity conversion sub-circuit, obtains detection signal using analysis detection sub-circuit, micro-chip processor obtains heating temperature situation of change by detecting signal.The utility model is simple for structure, is swift in response, the temperature variations of the tested electric heating module of the electric signal and actual response of energy real-time detection oscillating circuit.
Description
Technical field
The utility model relates to thermometry fields, more particularly, to a kind of electromagnetic induction temperature measurement circuit.Meanwhile this
Utility model further relates to a kind of induction temperature sensing device and cooker with electromagnetic induction temperature measurement circuit.
Background technique
Thermometry field at present, only by temperature-sensitive detecting element temperature collection signal, then will by A/D analog-digital converter
Collected temperature signal is converted into digital signal, for micro-chip processor read temperature, this mode, not only detection accuracy compared with
It is low, and circuit cost is relatively high.
Utility model content
The utility model overcomes the defect of existing thermometry, provides a kind of electromagnetic induction temperature measurement circuit.This is practical
New structure is succinct, is swift in response, the tested electric heating module of the electric signal and actual response of energy real-time detection oscillating circuit
Temperature variations.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of electromagnetic induction temperature measurement circuit, the electromagnetic induction temperature measurement circuit include magnetoelectricity conversion sub-circuit, detection
Circuit, drive sub-circuits and micro-chip processor, wherein
The magnetoelectricity conversion sub-circuit obtains electromagnetic signal for converting electrical energy into magnetic energy；
The detection sub-circuit obtains detection signal for detecting to the electric signal of magnetoelectricity conversion sub-circuit；
The micro-chip processor is used for the detection signal and output pulse signal of analysis detection sub-circuit；
The drive sub-circuits obtain driving signal, drive for amplifying the pulse signal of micro-chip processor
Signal is for driving magnetoelectricity conversion sub-circuit；In addition, driving circuit is also used to carry out micro-chip processor, magnetoelectricity conversion sub-circuit
Isolation；
Its connection relationship is as follows:
The magnetoelectricity conversion sub-circuit carries out magnetic energy measurement to electric heating module；
The output end of the magnetoelectricity conversion sub-circuit is electrically connected with the input terminal of detection sub-circuit；
The output end of the detection sub-circuit is electrically connected with the input terminal of micro-chip processor；
The output end of the micro-chip processor is electrically connected with the input terminal of drive sub-circuits；
The output end of the drive sub-circuits is electrically connected with the input terminal of magnetoelectricity conversion sub-circuit；
The detection sub-circuit includes filtering sub-circuit, commutation sub-circuit and sampling partial pressure sub-circuit, connection relationship
It is as follows:
Output end of the output end of the commutation sub-circuit as detection sub-circuit, the output end of commutation sub-circuit and filter
The input terminal of marble circuit is electrically connected；
The output end ground connection of the filtering sub-circuit；
The input terminal of the commutation sub-circuit is electrically connected with the output end of sampling partial pressure sub-circuit, sampling partial pressure sub-circuit
Input terminal as detection sub-circuit input terminal.
In a preferred solution, sampling partial pressure sub-circuit includes first resistor and second resistance, connection
Relationship is as follows:
Input terminal of the one end of the first resistor as sampling partial pressure sub-circuit, the other end of first resistor, which is used as, to be adopted
The output end of sample partial pressure sub-circuit；
The other end of the first resistor is electrically connected with one end of second resistance；
The other end of the second resistance is grounded.
In a preferred solution, the commutation sub-circuit includes diode, the cathode conduct of the diode
The output end of commutation sub-circuit, input terminal of the anode of diode as commutation sub-circuit.
In a preferred solution, the filtering sub-circuit includes filter capacitor, the anode of the filter capacitor
As the input terminal of filtering sub-circuit, output end of the cathode of filter capacitor as filtering sub-circuit, the cathode of filter capacitor is connect
Ground.
In a preferred solution, the filtering sub-circuit includes 3rd resistor, the 4th resistance, the 5th resistance,
One capacitor and operational amplifier, wherein
Input terminal of the one end of the 3rd resistor as filtering sub-circuit, the other end and first capacitor of 3rd resistor
One end electrical connection；
The other end of the first capacitor is grounded；
The other end of the 3rd resistor is electrically connected with the non-inverting input terminal of operational amplifier；
One end of 4th resistance is grounded；
The other end of 4th resistance is electrically connected with one end of the 5th resistance；
The other end of 4th resistance is electrically connected with the inverting input terminal of operational amplifier；
Output end of the output end of the operational amplifier as filtering sub-circuit, the other end of the 5th resistance and operation
The output end of amplifier is electrically connected.
In a preferred solution, the magnetoelectricity conversion sub-circuit includes inductance and the second capacitor, wherein described
Input terminal of the one end of inductance as magnetoelectricity conversion sub-circuit, output end of the other end of inductance as magnetoelectricity conversion sub-circuit；
The other end of the inductance is electrically connected with one end of the second capacitor；
The other end of second capacitor is grounded.
This patent additionally provides a kind of induction temperature sensing device, and the induction temperature sensing device includes above-mentioned electromagnetic induction thermometric
Circuit further includes the temperature-sensitive layer that can incude electromagnetic signal caused by magnetoelectricity conversion sub-circuit.
The micro-chip processor includes the inspection being connect with detection sub-circuit to receive, detect electric signal in detection sub-circuit
Survey analysis module.
The temperature-sensitive layer is made of permalloy or Precise Alloy material.
The induction temperature sensing device further includes temperature-adjusting device, and the micro-chip processor further includes control module, described
The input terminal of control module with test and analyze module connect, output end is connect with temperature-adjusting device, the control module according to
It tests and analyzes the testing result of module and adjusts the temperature level of temperature sensing device by temperature-adjusting device.
This patent additionally provides a kind of cooker, and the cooker is equipped with above-mentioned induction temperature sensing device.
The cooker is gas-cooker, electromagnetic oven, electric cooker or pressure cooker.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
The utility model is simple for structure, is swift in response, and the electric signal and actual response of energy real-time detection oscillating circuit are tested
Electric heating module temperature variations.
Detailed description of the invention
Fig. 1 is the module circuit diagram of embodiment.
Fig. 2 is the structural schematic diagram of embodiment 2.
Label declaration: 51. burners, 52. grates, 53. panels, 54. control valves, 55. air inlet pipe, 57. electromagnetic induction thermometrics
Inductance, 4. cookwares, 5. gas-cookers in circuit.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, a kind of electromagnetic induction temperature measurement circuit, including first resistor, second resistance, driving circuit, micro process
Chip, diode, filter capacitor, capacitor, magnetic induction coil, wherein
Magnetic induction coil detects electric heating module；
The output end of micro-chip processor is electrically connected with the input terminal of driving circuit；
The output end of driving circuit and the input terminal of magnetic induction coil；
The output end of magnetic induction coil is electrically connected with one end of capacitor；
The other end of capacitor is grounded；
The output end of magnetic induction coil is electrically connected with one end of first resistor；
The other end of first resistor is electrically connected with one end of second resistance；
The other end of second resistance is grounded；
The other end of first resistor is electrically connected with the anode of diode；
The cathode of diode is electrically connected with the anode of filter capacitor；
The cathode of filter capacitor is grounded；
The cathode of diode is electrically connected with the input terminal of micro-chip processor.
The course of work of this implementation:
The temperature of the electric signals real time reaction temperature-sensitive layer such as voltage, electric current in magnetoelectricity conversion circuit, resistance R1 and resistance R2
The sampling bleeder circuit of composition is in parallel with the capacitor of magnetoelectricity conversion circuit, and the sampling bleeder circuit of resistance R1 and resistance R2 composition is adopted
Collect capacitor both ends voltage and partial pressure after be output to diode D1 rectification, it is rectified after pulsating direct current signal filtered through capacitor EC1
Wave becomes stable direct current signal.The AD mouth that direct current signal is input to micro-chip processor is converted to corresponding temperature.
Embodiment 2
This patent additionally provides a kind of cooker, such as gas-cooker, including gas-cooker 5 and is placed in cooking for 5 top of gas-cooker
It prepares food utensil 4, which is preferably cookware 4, and the gas-cooker 5 includes burner 51, grate 52, panel 53,55 and of air inlet pipe
Control valve 54, panel 53 are equipped with mounting hole, and burner 51 is set in mounting hole, and grate 52 is set on panel 53, grate 52 and furnace
First 51 arrange in concentric circles, i.e., grate 52 is set on the periphery of burner 51, to support heating object.The air inlet pipe 55 and furnace
First 51 connection, to provide pipeline for gas supply, the air inlet pipe 55 is equipped with control valve 54, i.e. temperature-adjusting device, should
Control valve 54 can be solenoid valve or other valves with regulating gas air-flow magnitude function.In the electromagnetic induction temperature measurement circuit
Inductance 57 be preferably fixed to above or below burner 51.
As another preferred embodiment, the cookware 4, which is equipped with, can incude electromagnetism caused by magnetoelectricity conversion sub-circuit
The temperature-sensitive layer 41 of signal.The temperature-sensitive layer 41 both can be made cookware entirety, can also be used as a part of cookware, passes through riveting
It connects, weld, meltallizing, the methods of printing make it be combined with each other with cookware main body.When temperature-sensitive layer 11 be arranged at 1 bottom of cookware,
It can both be individually composed 4 bottom of cookware, can also be compounded in 4 bottom of cookware, become a part of 4 bottom of cookware, multiple with regard to it
For coincidence is set, temperature-sensitive layer 41 can both be located at the upper surface of 4 bottom of cookware, can also be located at the lower surface of 4 bottom of cookware.Institute
Cookware bottom is stated, i.e. the bottom of a pan part both can be single layer designs, or compound design, for example, the bottom of a pan is by aluminium sheet, steel
One or more of plate, copper sheet or iron plate, which are combined with each other, to be formed.When 4 bottom of cookware is composite design, the temperature-sensitive
Layer 41 can also be set between the upper and lower surfaces of the bottom of a pan.Certainly, for three-dimensional heating, the temperature-sensitive layer can also be set
It sets at pot body position.
In addition, the temperature-sensitive layer 41 can also be respectively set with cookware 41, for example temperature-sensitive layer 41 is independent as one
Component is arranged on grate, then the vessel such as placing cooker on temperature-sensitive layer.
The temperature-sensitive layer 41 has high magnetic permeability, and the temperature-sensitive layer 41 is made of ferromagnetism or ferrimagnetic material, such as
Permalloy, Precise Alloy, in curie point, meeting bust to zero or near zero, so-called permalloy, that is, iron nickel closes magnetic conductivity
Gold, 41 magnetic conductivity of temperature-sensitive layer are preferably 2000~200000H/m, and resistivity is preferably 30~130 μ Ω cm.
For the present embodiment, the Precise Alloy material is preferably that the triumphant metallurgical metal products in the Shanghai Precise Alloy 4J36(have
The production of limit company) or the triumphant metallurgical metal products Co., Ltd production in the Shanghai Precise Alloy 4J32(), 41 thickness of temperature-sensitive layer is preferred
It is 0.1 to 3 millimeter, the present embodiment is 1.5 millimeters.
The temperature-sensitive layer 41 structure in the form of sheets, is compounded in the bottom of cookware 4, can also be by powdered or granular precision
Alloy material composition, and it is attached to 4 bottom of cookware.
For this patent, it is clear that all have the above resistivity or ferromagnetism varies with temperature and the temperature-sensitive layer material that changes
Material can be adapted for this patent, the present embodiment it is preferable to use permalloy or the Curie-point temperature of Precise Alloy material exist
Precise Alloy material between 30 degrees Celsius to 500 degrees Celsius, further preferred Curie-point temperature is at 70 degrees Celsius to 400 degrees Celsius
Between Precise Alloy material, for the type of Precise Alloy material, it is preferable to use following alloy materials for this implementation:
So-called permalloy is also known as iron-nickel alloy, and wherein the content of iron is 35~70%, further preferably 63~67%, nickel
Content 30~65%, further preferably 37~58%.Iron-nickel alloy has a high magnetic permeability, and curie point can bust to close
Space permeability.
The electromagnetic induction temperature measurement circuit, temperature-sensitive layer 41 form induction temperature sensing device.
The micro-chip processor of the electromagnetic induction temperature measurement circuit includes connecting with the detection sub-circuit to receive, detect
The detection and analysis module of electric signal in sub-circuit is detected, the electric signal can be voltage or electric current etc..
The micro-chip processor further includes control module, and the input terminal of the control module is connect with module is tested and analyzed,
The output end temperature-adjusting device connection similar with control valve 54 etc., the control module is according to the detection knot for testing and analyzing module
Fruit and the temperature level that temperature sensing device is adjusted by temperature-adjusting device.Specifically, the magnetoelectricity conversion circuit turns electric energy
It is changed to magnetic energy, generates electromagnetic signal, and act on temperature-sensitive layer, the electromagnetic signal is acted on temperature-sensitive layer and declined by the loss of temperature-sensitive layer
Subtracting, the electric signals such as electric current, voltage in magnetoelectricity conversion sub-circuit and detection sub-circuit change with the variation of temperature-sensitive layer temperature, and
Specific corresponding relationship is formed, i.e., sense can be deduced by the variation of electric signal in detection magnetoelectricity conversion sub-circuit or detection sub-circuit
The temperature of warm layer.
On the basis of thermometric, this patent can also realize the control to temperature, by taking voltage signal as an example, the control mould
The input terminal of block is connect with module is tested and analyzed, and output end is connect with control valve, is tested and analyzed module and is detected detection sub-circuit
In voltage signal after, see if fall out initially set minimum or peak, when going beyond the scope, control module by contrast
Temperature-adjusting device, i.e. control valve will be adjusted, gas quantity size, the final firepower size for adjusting cooker, to reach are controlled
To the effect for adjusting 41 temperature of temperature-sensitive layer；When current firepower will be kept without departing from range, to guarantee the temperature dimension of temperature-sensitive layer
It holds in certain section.
Above-mentioned cooker can also be electromagnetic oven, electric cooker, pressure cooker etc. other than gas-cooker.
The same or similar label correspond to the same or similar components；
The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (9)
1. a kind of electromagnetic induction temperature measurement circuit, which is characterized in that the electromagnetic induction temperature measurement circuit includes magnetoelectricity conversion son electricity
Road, detection sub-circuit, drive sub-circuits and micro-chip processor, wherein
The magnetoelectricity conversion sub-circuit obtains electromagnetic signal for converting electrical energy into magnetic energy；
The detection sub-circuit obtains detection signal for detecting to the electric signal of magnetoelectricity conversion sub-circuit；
The micro-chip processor is used for the detection signal and output pulse signal of analysis detection sub-circuit；
The drive sub-circuits obtain driving signal, driving signal for amplifying the pulse signal of micro-chip processor
For driving magnetoelectricity conversion sub-circuit；
Its connection relationship is as follows:
The magnetoelectricity conversion sub-circuit carries out magnetic energy measurement to electric heating module；
The output end of the magnetoelectricity conversion sub-circuit is electrically connected with the input terminal of detection sub-circuit；
The output end of the detection sub-circuit is electrically connected with the input terminal of micro-chip processor；
The output end of the micro-chip processor is electrically connected with the input terminal of drive sub-circuits；
The output end of the drive sub-circuits is electrically connected with the input terminal of magnetoelectricity conversion sub-circuit；
The detection sub-circuit includes that filtering sub-circuit, commutation sub-circuit and sampling partial pressure sub-circuit, connection relationship are as follows:
Output end of the output end of the commutation sub-circuit as detection sub-circuit, the output end and filtering of commutation sub-circuit
The input terminal of circuit is electrically connected；
The output end ground connection of the filtering sub-circuit；
The input terminal of the commutation sub-circuit is electrically connected with the output end of sampling partial pressure sub-circuit, and sampling divides the defeated of sub-circuit
Enter input terminal of the end as detection sub-circuit；
The sampling partial pressure sub-circuit includes first resistor and second resistance, and connection relationship is as follows:
Input terminal of the one end of the first resistor as sampling partial pressure sub-circuit, the other end of first resistor is as sampling point
Press the output end of sub-circuit；
The other end of the first resistor is electrically connected with one end of second resistance；
The other end of the second resistance is grounded；
The filtering sub-circuit includes 3rd resistor, the 4th resistance, the 5th resistance, first capacitor and operational amplifier, wherein
Input terminal of the one end of the 3rd resistor as filtering sub-circuit, the one of the other end of 3rd resistor and first capacitor
End electrical connection；
The other end of the first capacitor is grounded；
The other end of the 3rd resistor is electrically connected with the non-inverting input terminal of operational amplifier；
One end of 4th resistance is grounded；
The other end of 4th resistance is electrically connected with one end of the 5th resistance；
The other end of 4th resistance is electrically connected with the inverting input terminal of operational amplifier；
Output end of the output end of the operational amplifier as filtering sub-circuit, the other end and operation amplifier of the 5th resistance
The output end of device is electrically connected.
2. electromagnetic induction temperature measurement circuit according to claim 1, which is characterized in that the commutation sub-circuit includes two poles
Pipe, output end of the cathode of the diode as commutation sub-circuit, input of the anode of diode as commutation sub-circuit
End.
3. electromagnetic induction temperature measurement circuit according to claim 1, which is characterized in that the magnetoelectricity conversion sub-circuit includes
Inductance and the second capacitor, wherein
Input terminal of the one end of the inductance as magnetoelectricity conversion sub-circuit, the other end of inductance is as magnetoelectricity conversion sub-circuit
Output end；
The other end of the inductance is electrically connected with one end of the second capacitor；
The other end of second capacitor is grounded.
4. a kind of induction temperature sensing device, which is characterized in that the induction temperature sensing device includes that claims 1 to 3 is any described
Electromagnetic induction temperature measurement circuit further includes the temperature-sensitive layer that can incude electromagnetic signal caused by magnetoelectricity conversion sub-circuit.
5. induction temperature sensing device according to claim 4, which is characterized in that the induction temperature sensing device includes and detection is sub
Detection and analysis module of the circuit connection to receive, detect electric signal in detection sub-circuit.
6. induction temperature sensing device according to claim 5, which is characterized in that the temperature-sensitive layer is by permalloy or accurate conjunction
Golden material is made.
7. induction temperature sensing device according to claim 6, which is characterized in that the induction temperature sensing device further includes temperature tune
Regulating device, the micro-chip processor further include control module, and the input terminal of the control module is connect with module is tested and analyzed, defeated
Outlet is connect with temperature-adjusting device, and the control module adjusts dress according to the testing result for testing and analyzing module and by temperature
Set the temperature level for adjusting temperature sensing device.
8. a kind of cooker, which is characterized in that the cooker is equipped with any induction temperature sensing dress of claim 5 to 7
It sets.
9. cooker according to claim 8, which is characterized in that the cooker is gas-cooker, electromagnetic oven, electric meal
Pot or pressure cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252496.5U CN208805736U (en) | 2018-02-12 | 2018-02-12 | A kind of electromagnetic induction temperature measurement circuit and induction temperature sensing device and cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820252496.5U CN208805736U (en) | 2018-02-12 | 2018-02-12 | A kind of electromagnetic induction temperature measurement circuit and induction temperature sensing device and cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208805736U true CN208805736U (en) | 2019-04-30 |
Family
ID=66224027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820252496.5U Active CN208805736U (en) | 2018-02-12 | 2018-02-12 | A kind of electromagnetic induction temperature measurement circuit and induction temperature sensing device and cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208805736U (en) |
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2018
- 2018-02-12 CN CN201820252496.5U patent/CN208805736U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210803 Address after: 527431 Dongjiang Development Zone, liuzu Town, Xinxing County, Yunfu City, Guangdong Province Patentee after: Xinxing hot Smart Home Technology Co.,Ltd. Address before: 526040 room 701, building 5, lihuju, Lianhu West Road, Duanzhou District, Zhaoqing City, Guangdong Province Patentee before: Chen Jingchao |
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| TR01 | Transfer of patent right |