CN102589019B - Wireless temperature measuring device used for induction cooker - Google Patents

Wireless temperature measuring device used for induction cooker Download PDF

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Publication number
CN102589019B
CN102589019B CN201210075497.4A CN201210075497A CN102589019B CN 102589019 B CN102589019 B CN 102589019B CN 201210075497 A CN201210075497 A CN 201210075497A CN 102589019 B CN102589019 B CN 102589019B
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cooker
induction
measuring device
temperature measuring
module
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CN102589019A (en
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张锦
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Midea Group Co Ltd
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Midea Group Co Ltd
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Abstract

The invention relates to a wireless temperature measuring device used for an induction cooker. The wireless temperature measuring device comprises the induction cooker, a wireless signal receiving module to which the induction cooker belongs, a cooker, a controller to which the cooker belongs, at least one temperature acquisition module and at least one wireless signal transmitting module, wherein the wireless signal receiving module is electrically connected with a control circuit in the induction cooker; the output end of the temperature acquisition module is electrically connected with the controller; the wireless signal transmitting module is electrically connected with the controller; the wireless temperature measuring device is characterized by also comprising an induction electrostatic detection module to which the cooker belongs, wherein the input end of the induction electrostatic detection module is electrically connected with the cooker; and the output end of the induction electrostatic detection module is electrically connected with the controller. The induction electrostatic detection module is used for detecting the heating state of the cooker, so that the endurance time of the battery of the wireless temperature measuring device can be prolonged greatly. The wireless temperature measuring device is simple in installation structure and manufacturing process, simple in structure and convenient to assemble. Moreover, by the wireless temperature measuring device, the cooker is attractive, and the reliability and the safety of a system are improved.

Description

Wireless temperature measuring device for induction cooker
Technical field
The invention belongs to electromagentic furnace technology field, the wireless temperature measuring device that especially electromagnetic oven is used.
Background technology
The accreditation that the wireless temperature measurement mode of electromagnetic oven can accurately measure food temperature and obtained market with it, its composition generally comprises: the parts such as electromagnetic oven, cooker, temperature measuring equipment, wireless base station apparatus, radio receiver, battery.But cannot judge accurately the heated condition of cooker based on these parts, after heating finishes, can not close in time wireless base station apparatus, cause battery power consumption to increase.So how to extend one of key problem that has become wireless temperature measurement cruising time of battery.
For this reason, Chinese invention patent Granted publication number is CN 201858680U design, name is called " a kind of wireless temperature measuring device for induction cooker ", and it comprises electromagnetic oven actuating coil, controller, temperature collect module, the signal transmitting module sending with wireless mode and corresponding signal receiving module.Cooker end temperature collect module can accurately gather the temperature of cooker and be transferred to electromagnetic oven by wireless mode, has solved the inaccurate problem of electromagnetic oven thermometric.Thereby electromagnetic oven actuating coil starts thermometric acquisition module and wireless sending module for detection of electromagnetic oven duty, reach the object that extends service time of battery.But use electromagnetic oven actuating coil must be wound on the bottom of cooker, not only complex process, production efficiency are low, and affect the attractive in appearance of cooker.Because electromagnetic oven actuating coil is in the bottom of cooker, when electromagnetic oven work, will be subject to for a long time temperatures involved, can make the insulation of coil peel off, cause coil short operational failure, affect the stability of system.
Summary of the invention
The present invention considers the defect of prior art and a kind of simple in structure, wireless temperature measuring device for induction cooker that technique is simple and convenient for assembly, the stability that it can well extend battery life and improve system is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of wireless temperature measuring device for induction cooker, comprises the reception of wireless signals module that electromagnetic oven and electromagnetic oven are affiliated; Controller, at least one temperature collect module and at least one wireless signal sending module under cooker and cooker; Wherein said reception of wireless signals module is electrically connected with electromagnetic oven internal control circuit, the output electricity of described temperature collect module connects controller, described wireless signal sending module electricity connects controller, characterized by further comprising the affiliated induction electrostatic detection module of a cooker, the input of described induction electrostatic detection module is electrically connected with cooker, and its output is electrically connected with controller.
Described induction electrostatic detection module and controller can be arranged on cookware handle, cooker interlayer or cooker upper cover position.
Described induction electrostatic detection module can be to amplify type circuit, or comparative type circuit, or amplitude limit type circuit.
Can also add holding circuit and/or signal conditioning circuit in described induction electrostatic detection module.
Described amplification type circuit is triode scale-up version circuit exclusive disjunction scale-up version circuit.
Described signal conditioning circuit is the filter circuit that induction electrostatic signal is converted to controller discernible signal.
The present invention's beneficial effect is compared with prior art: in order to detect the heated condition of cooker, can improve greatly the cruising time of wireless temperature measuring device battery by induction electrostatic detection module.Mounting structure, manufacture craft are more simple, simple in structure, convenient for assembly.Not only make cooker more attractive in appearance, and improved reliability, the security of system.
brief description of the drawings
Fig. 1 is principle of the invention block diagram;
Fig. 2 is wireless temperature measurement electromagnetic oven structure figure of the present invention;
Fig. 3 is the circuit block diagram of the induction electrostatic detection module of the embodiment of the present invention one;
Fig. 4 is a kind of circuit theory diagrams of the induction electrostatic detection module of the embodiment of the present invention one;
Fig. 5 is the another kind of circuit theory diagrams of the induction electrostatic detection module of the embodiment of the present invention one;
Fig. 6 is another circuit theory diagrams of the induction electrostatic detection module of the embodiment of the present invention one;
Fig. 7 is another circuit theory diagrams of the induction electrostatic detection module of the embodiment of the present invention one;
Fig. 8 is the circuit theory diagrams of the induction electrostatic detection module of the embodiment of the present invention two;
Fig. 9 is the circuit theory diagrams of the induction electrostatic detection module of the embodiment of the present invention three.
detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
embodiment mono-
As shown in Figure 1, a kind of wireless temperature measuring device for induction cooker, comprises the reception of wireless signals module that electromagnetic oven and electromagnetic oven are affiliated; Controller, at least one temperature collect module and at least one wireless signal sending module under cooker and cooker; Wherein said reception of wireless signals module is electrically connected with electromagnetic oven internal control circuit, the output electricity of described temperature collect module connects controller, described wireless signal sending module electricity connects controller, feature of the present invention is the induction electrostatic detection module that also comprises that a cooker is affiliated, the input of described induction electrostatic detection module is electrically connected with cooker, and its output is electrically connected with controller.
As shown in Figure 2, a kind of wireless temperature measurement electromagnetic oven comprises reception of wireless signals module 8, the temperature collect module 3 of a cooker 1, an electromagnetic oven 7 and electromagnetic oven body inside, controller 4, wireless signal sending module 5, induction electrostatic detection module 6 and the cell apparatus 9 of cookware handle inside.Wireless signal sending module 5, the induction electrostatic detection module 6 of cookware handle inside are electrically connected with controller 4, and the input of induction electrostatic detection module 6 is electrically connected with cooker conductor part in the position on cooker 1 top 2.
Wireless signal sending module, induction electrostatic detection module, temperature collect module circuit part, controller coexist on a printed circuit board in the present embodiment.
When work, the induction electrostatic signal that logical induction electrostatic detection module produces on cooker when detecting electromagnetic oven heating, transfer level signal or pulse signal that controller can be identified to, thereby control the opening and closing of temperature collect module, wireless signal sending module and controller.In the time that electromagnetic oven stops heating, single-chip microcomputer and wireless signal transmitting module will enter or time delay enters low-power consumption mode.
As shown in Fig. 3,4, in the present embodiment, respond to the form of electrostatic detection module employing triode type amplifying circuit 1, also add holding circuit 3 and signal conditioning circuit 2.Amplifying circuit 1 comprises resistance R 21, R22, R23 and triode Q21; Holding circuit 3 comprises diode D21; Signal conditioning circuit 2 comprises capacitor C 21, C22 and resistance R 24, and signal conditioning circuit 2 plays smothing filtering effect.Wherein capacitor C 21, C22 and resistance R 24 are connected in parallel between the output OUT and ground of induction electrostatic detection module; Resistance R 21 is connected between the input IN and the base stage of triode Q21 of induction electrostatic detection module; Resistance R 22 is connected between the base stage and ground of triode Q21; Resistance R 203 is connected between the emitter stage and ground of triode Q21; Diode D21 negative pole is connected with the input IN of induction electrostatic detection module, and positive pole is connected with ground; The colelctor electrode of triode Q21 is connected with positive source, and emitter stage is connected with induction static output.
When electromagnetic oven heating, high level of output is entered controller by induction electrostatic detection module; When electromagnetic oven stops heating, low level of output is entered to controller.Single-chip microcomputer in controller is set to rising edge or high level triggers.
According to the difference of cooker induced voltage, can be as shown in Figure 5, select not add holding circuit 3, amplifying circuit 1 to comprise resistance R 11, R12, R13 and triode Q13; Signal conditioning circuit 2 comprises capacitor C 11, C12 and resistance R 14, and signal conditioning circuit 2 plays smothing filtering effect.Also can be as shown in Figure 6, holding circuit 3 adopts multiple clamper amplitude limit diodes such as positive limiting diode D31 and negative limiting diode D32, and amplifying circuit 1 comprises resistance R 31, R32, R33 and triode Q31; Signal conditioning circuit 2 comprises capacitor C 31, C32 and resistance R 34, and signal conditioning circuit 2 plays smothing filtering effect.
As shown in Figure 7, induction electrostatic detection module amplifying circuit form also can utilize operational amplification circuit form to realize, and discharge circuit 1 comprises operational amplifier Q41; Resistance R 41, R42, R43, R44; Wherein resistance R 41, R402 are connected between operational amplifier Q41 output and ground, and resistance R 41 one end are connected to the ground; Resistance R 43 is connected between operational amplifier Q41 positive input and the input IN of induction electrostatic detection module; Resistance R 44 is connected between operational amplifier Q41 positive input and ground; Operational amplifier Q41 positive input is connected with resistance R 43, R44, and operational amplifier Q41 reverse input end is connected with resistance R 41, R42.
If do not adopt the signal conditioning circuit 2 in such scheme, controller also can be controlled by acquisition pulse frequency signal.
embodiment bis-
As shown in Figure 8, the difference of the present embodiment and embodiment mono-is, induction electrostatic detection module employing comparative type circuit.Comparison circuit comprises comparator Q51 and resistance R 51, R52, R53, R55.
Resistance R 54 and resistance R 53 are connected between positive source and ground, and resistance R 54 one end are connected to the ground; Resistance R 51 and resistance R 52 are connected between positive source and ground, and resistance R 52 one end are connected to the ground; Resistance R 55 one end are connected with positive source, and negative pole is connected with induction static output OUT.Resistance R 54 and R53 will provide a reference voltage input comparator Q51 inverting input.
embodiment tri-
As shown in Figure 9, in the present embodiment, respond to electrostatic detection module and adopt amplitude limit type circuit form.Resonant frequency signal when the amplitude limit clamp circuit of employing diode D61, D62 composition gathers electromagnetic oven heating.Diode D62 negative pole is connected with induction static input IN, and positive pole is connected with ground; Diode D61 negative pole is connected with positive source, and induction static input IN end connects; Resistance R 61 is connected between induction static input IN and induction static output OUT.

Claims (6)

1. a wireless temperature measuring device for induction cooker, comprises the reception of wireless signals module that electromagnetic oven and electromagnetic oven are affiliated; Controller, at least one temperature collect module and at least one wireless signal sending module under cooker and cooker; Wherein said reception of wireless signals module is electrically connected with electromagnetic oven internal control circuit, the output of described temperature collect module is electrically connected with controller, described wireless signal sending module is electrically connected with controller, characterized by further comprising the affiliated induction electrostatic detection module of a cooker, the input of described induction electrostatic detection module is electrically connected with cooker, and its output is electrically connected with controller.
2. wireless temperature measuring device for induction cooker according to claim 1, is characterized in that described induction electrostatic detection module and controller can be arranged on cookware handle, cooker interlayer or cooker upper cover position.
3. wireless temperature measuring device for induction cooker according to claim 1, is characterized in that described induction electrostatic detection module can be to amplify type circuit, or comparative type circuit, or amplitude limit type circuit.
4. according to the wireless temperature measuring device for induction cooker described in claim 1 or 3, it is characterized in that can also adding holding circuit and/or signal conditioning circuit in described induction electrostatic detection module.
5. wireless temperature measuring device for induction cooker according to claim 3, is characterized in that described amplification type circuit is triode scale-up version circuit exclusive disjunction scale-up version circuit.
6. wireless temperature measuring device for induction cooker according to claim 4, is characterized in that described signal conditioning circuit is the filter circuit that induction electrostatic signal can be converted to controller discernible signal.
CN201210075497.4A 2012-03-21 2012-03-21 Wireless temperature measuring device used for induction cooker Active CN102589019B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108008648A (en) * 2016-11-02 2018-05-08 浙江绍兴苏泊尔生活电器有限公司 Power supply control method
CN106705145A (en) * 2016-12-15 2017-05-24 汕头市鼎翔电子科技有限公司 Intelligent electricity-saving induction cooker and electricity-saving control method
CN110062485A (en) * 2018-01-17 2019-07-26 佛山市顺德区美的电热电器制造有限公司 Electromagnetic heating Rouser, method and electromagnetic heater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09210799A (en) * 1996-01-31 1997-08-15 Hitachi Zosen Corp Wireless type temperature measuring system
CN101040756A (en) * 2007-02-08 2007-09-26 深圳市拓邦电子科技股份有限公司 Boiler able to measuring temperature by inducing
CN200979463Y (en) * 2006-09-29 2007-11-21 潘毅强 A wireless temperature measurement device for an induction cooker
CN200980566Y (en) * 2006-04-03 2007-11-28 彭雪群 Pot tool with temperature measuring device
CN202613528U (en) * 2012-03-21 2012-12-19 美的集团有限公司 Wireless temperature measuring device for induction cooker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09210799A (en) * 1996-01-31 1997-08-15 Hitachi Zosen Corp Wireless type temperature measuring system
CN200980566Y (en) * 2006-04-03 2007-11-28 彭雪群 Pot tool with temperature measuring device
CN200979463Y (en) * 2006-09-29 2007-11-21 潘毅强 A wireless temperature measurement device for an induction cooker
CN101040756A (en) * 2007-02-08 2007-09-26 深圳市拓邦电子科技股份有限公司 Boiler able to measuring temperature by inducing
CN202613528U (en) * 2012-03-21 2012-12-19 美的集团有限公司 Wireless temperature measuring device for induction cooker

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Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28

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