CN102519057B - Device for detecting microwave stirring mechanism of flat plate-type microwave oven - Google Patents
Device for detecting microwave stirring mechanism of flat plate-type microwave oven Download PDFInfo
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- CN102519057B CN102519057B CN201110435066.XA CN201110435066A CN102519057B CN 102519057 B CN102519057 B CN 102519057B CN 201110435066 A CN201110435066 A CN 201110435066A CN 102519057 B CN102519057 B CN 102519057B
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Abstract
The invention relates to a device for detecting a microwave stirring mechanism of a flat plate-type microwave oven. The device for detecting a microwave stirring mechanism of a flat plate-type microwave oven is characterized in that the device provided by the invention comprises 1, a detection mechanism which is utilized for detecting if a microwave stirring motor of a microwave stirring mechanism works normally, and 2, an execution mechanism which is connected to a signal output terminal of the detection mechanism and is utilized for timely cutting off a power supply of an electric heating element of a flat plate-type microwave oven when the detection mechanism determines that the microwave stirring motor does not work normally. Compared with the prior art, the device for detecting a microwave stirring mechanism of a flat plate-type microwave oven can timely determine if a microwave stirring motor does not work normally, can timely cut off a power supply of an electric heating element of a flat plate-type microwave oven, avoids the damage of a flat plate of the flat plate-type microwave oven, prevents a risk produced in flat plate-type microwave oven use, improves use safety, greatly reduces a maintenance cost, has s simple and reasonable structure and a low cost, is convenient for installation and does not influence other functional structures of the flat plate-type microwave oven.
Description
Technical field
The present invention relates to a kind of checkout gear of microwave stirring mechanism of flat plate-type microwave oven.
Background technology
Micro-wave oven is one of household electrical appliance be popular in users, and Flat-plate microwave oven becomes the main category of micro-wave oven on market especially, Flat-plate microwave oven, comprise microwave plumbing and microwave Jiao Bo mechanism, and the critical piece of microwave Jiao Bo mechanism stirs ripple motor exactly; The microwave input port of microwave plumbing is provided with magnetron, and the furnace chamber of micro-wave oven is arranged the furnace chamber microwave input port be communicated with microwave oven waveguide pipe, microwave stirs ripple organization establishes at furnace chamber microwave input port place; Its furnace chamber microwave input port is arranged on below furnace chamber, left and right side, above or on trailing flank.During micro-wave oven work, the microwave that magnetron produces conducts through waveguide, cavity heat food is entered by furnace chamber microwave input port, the rotary part stirring ripple driven by motor microwave Jiao Bo mechanism rotates, make the microwave entering cavity from furnace chamber microwave input port be dispersed in each corner of cavity uniformly, cooking food obtains fine heating uniformity.But microwave Jiao Bo mechanism is all hidden in the space that flat board (dull and stereotyped be generally made up of the material such as devitrified glass or mica sheet) hides usually, and when micro-wave oven works, whether the rotary part of microwave Jiao Bo mechanism rotates and can not be viewed directly.If during micro-wave oven work, stir ripple motor damage or other reason when causing the rotary part of microwave Jiao Bo mechanism to stop operating, because microwave can not be evenly dispersed, it is very poor that heating using microwave uniformity will become, easily occur that microwave focal heat causes heat to be concentrated thus causes the danger such as dull and stereotyped focusing damage, if have food in cavity, even may cause danger such as catching fire, thus cause the damage of cavity or flat board, because the flat board of Flat-plate microwave oven is often linked into an integrated entity by viscose glue with microwave oven cavity, and focus on the cracking damage caused due to devitrified glass, microwave oven cavity and flat board together can only be changed during maintenance, the maintenance cost caused to user will be very high.
Summary of the invention
Technical problem to be solved by this invention is the checkout gear providing a kind of microwave stirring mechanism of flat plate-type microwave oven for above-mentioned prior art, to detect the duty of the microwave Jiao Bo mechanism of Flat-plate microwave oven and to cut off the electrical heating elements of Flat-plate microwave oven when abnormal failure appears in microwave Jiao Bo mechanism in time.
The present invention solves the problems of the technologies described above adopted technical scheme: the checkout gear of this microwave stirring mechanism of flat plate-type microwave oven, is characterized in that: comprise
Testing agency, for detecting the duty of stirring ripple motor of microwave Jiao Bo mechanism;
Executing agency, is connected with the signal output part of described testing agency, cuts off the power supply of the electrical heating elements of Flat-plate microwave oven during for detecting when testing agency and stirring the work of ripple motor abnormal in time.
Here, the electrical heating elements of Flat-plate microwave oven is generally magnetron.
Described executing agency comprises
Testing circuit, is connected with the signal output part of described testing agency, for detecting the duty of stirring ripple motor;
Output executing circuit, for controlling the electrical heating elements of Flat-plate microwave oven or/and stir the work of ripple motor;
Single chip machine controlling circuit, is connected with the output of testing circuit, for processing the output signal of testing circuit and exporting control signal to described output executing circuit.
As improvement, described executing agency also comprises display circuit, and this display circuit is connected with described single chip machine controlling circuit, for showing the result of single chip machine controlling circuit.
As improvement, described single chip machine controlling circuit is also connected with the input circuit of Flat-plate microwave oven.
Above-mentioned testing circuit, output executing circuit, single chip machine controlling circuit, display circuit all adopt custom circuit.
Described testing agency can have multiple technologies scheme to realize, wherein a kind of scheme is preferably: described testing agency comprises: be set in and stir on ripple motor power output shaft, can stir the cam mechanism rotated under the drive of ripple motor power output shaft, be arranged on cam mechanism side, can be pressed by the lug boss of cam mechanism and when the button can upspring under himself elastic force effect after the lug boss of cam mechanism turns on.
In this scenario, as improvement, described in stir ripple motor and be fixed on electric machine support, described button is arranged on keypad, and keypad is fixed on electric machine support.
The another kind of technical scheme preferably of described testing agency is: described testing agency comprises: be set in and stir on ripple motor power output shaft, can stir the cam mechanism rotated under the drive of ripple motor power output shaft, be arranged on cam mechanism side, the microswitch of the lug boss process of cam mechanism can be detected.
Same, in such scheme, as improvement, described in stir ripple motor and be fixed on electric machine support, described microswitch is fixed on electric machine support.
Described testing agency also has a kind of technical scheme to be preferably: described testing agency comprises: be connected to and stir on ripple motor power output shaft, can stir the magnet rotated under the drive of ripple motor power output shaft, be arranged on stir ripple motor power output shaft side, can magnet near time conducting, magnet away from time the tongue tube that disconnects.
Same, in such scheme, as improvement, described in stir ripple motor and be fixed on electric machine support, described tongue tube is fixed on electric machine support.
Compared with prior art, the invention has the advantages that: by arrange detect microwave Jiao Bo mechanism stir the testing agency whether ripple motor normally work, with the executing agency cutting off the power supply of the electrical heating elements of Flat-plate microwave oven when detecting when testing agency and stir the work of ripple motor abnormal in time, make to use Flat-plate microwave oven product of the present invention, can detect in time and stir the work of ripple motor abnormal, and cut off the power supply of the electrical heating elements of Flat-plate microwave oven in time, ensure that the flat board of Flat-plate microwave oven can not damage, also can prevent the danger that Flat-plate microwave oven use procedure causes, improve the security of use, greatly reduce maintenance cost, the present invention is simple and reasonable, cost is low, easy for installation, do not affect other functional structures of micro-wave oven.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one Flat-plate microwave oven;
Fig. 2 is the structural representation after removing dull and stereotyped and side plate in the embodiment of the present invention one;
Fig. 3 is the mounting structure schematic diagram of testing agency in the embodiment of the present invention one;
Fig. 4 is the circuit theory diagrams of executing agency in the embodiment of the present invention one;
Fig. 5 is the structural representation of testing agency in the embodiment of the present invention one;
Fig. 6 is the structural representation of testing agency in the embodiment of the present invention two;
Fig. 7 is the structural representation of testing agency in the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
Flat-plate microwave oven as shown in Fig. 1 ~ 5, comprises body of heater 1, is provided with furnace chamber 2 in body of heater 1, and furnace chamber 2 downside is provided with dull and stereotyped 3, and body of heater leading flank is provided with guidance panel 4, guidance panel 4 is provided with button 5; Microwave Jiao Bo mechanism is provided with below furnace chamber 2 lower flat, microwave Jiao Bo mechanism then comprise stir ripple motor 6 and can stir rotate under ripple driven by motor stir ripple device 7, furnace chamber 2 side is provided with microwave plumbing 8, the microwave input port of microwave plumbing 8 is provided with magnetron (not shown), the furnace chamber 2 of micro-wave oven is arranged the furnace chamber microwave input port (not shown) be communicated with microwave oven waveguide pipe.
The checkout gear of the microwave stirring mechanism of flat plate-type microwave oven that the present embodiment provides, it comprises
Testing agency, for detecting the duty of stirring ripple motor 6 of microwave Jiao Bo mechanism;
Executing agency, is connected with the signal output part of described testing agency, cuts off the power supply of the electrical heating elements of Flat-plate microwave oven during for detecting when testing agency and stirring ripple motor 6 non-normal working in time.In the present embodiment, the electrical heating elements of Flat-plate microwave oven refers to magnetron.
In the present embodiment, described testing agency comprises: be set in and stir on ripple motor 6 power output shaft 61, can stir the cam mechanism 91 rotated under the drive of ripple motor 6 power output shaft 61, be arranged on cam mechanism 91 side, can be pressed by the lug boss 911 of cam mechanism and when the button 92 can upspring under himself elastic force effect after the lug boss 911 of cam mechanism 91 turns on; The described ripple motor 6 that stirs is fixed on electric machine support 93, and described button 92 is arranged on keypad 94, and keypad 94 is fixed on electric machine support 93, shown in Fig. 3 and Fig. 5.
Described executing agency 10 is shown in Figure 4, and it comprises:
Testing circuit 101, is connected with the signal output part of described testing agency, for detecting the duty of stirring ripple motor;
Output executing circuit 102, for controlling the electrical heating elements of Flat-plate microwave oven or/and stir the work of ripple motor; In the present embodiment, namely output executing circuit 102 can be used for the work of the electrical heating elements controlling Flat-plate microwave oven, can control again the work of stirring ripple motor 6;
Single chip machine controlling circuit 103, is connected with the output of testing circuit 101, for processing the output signal of testing circuit 101 and exporting control signal to described output executing circuit 102; Single chip machine controlling circuit 103 is also connected with the input circuit 104 of Flat-plate microwave oven;
Display circuit 105, this display circuit 105 is connected, for showing the result of single chip machine controlling circuit with described Single-chip Controlling electricity 103 tunnels.
In the present embodiment, the input circuit 104 of Flat-plate microwave oven can be used for the working method setting testing circuit, display circuit and output executing circuit, and its input signal takes from the button on microwave oven operation panel, and its circuit structure adopts custom circuit.
In the present embodiment, testing circuit 101 comprises socket J1, the first resistance R1, the second resistance R2, electric capacity C1, wherein, the first end of the first resistance R1 is connected with the first end of socket J1, the first end of socket J1 is connected with the first end of button in testing agency 92, and second end of socket J1 is connected with the second end of button in testing agency 92; Second end of socket J1 is connected with external positive input voltage VDD, second end of described first resistance R1 is connected with single chip machine controlling circuit 103 as the output of testing circuit 101, the first end of described second resistance R2 is connected with the first end of socket J1, the second end ground connection of described second resistance R2; The first end of described electric capacity C1 is connected with the second end of described first resistance, the second end ground connection of described electric capacity C1.
In the present embodiment, output executing circuit 102 and single chip machine controlling circuit 103 all adopt custom circuit.Display circuit 105 also adopts custom circuit, and it can the duty of display panel micro-wave oven and failure code.Such as: testing circuit 101 demonstrates failure code after detecting and stirring ripple motor abnormality, so that maintenance personal keeps in repair more quickly.
The job control principle of the checkout gear of the microwave stirring mechanism of flat plate-type microwave oven that the present embodiment provides is: the input circuit 104 of Flat-plate microwave oven obtains heating using microwave signal from the button microwave oven operation panel, then sends this signal to single chip machine controlling circuit 103; The result of single chip machine controlling circuit 103 pairs of input circuits 104 processes, and result is demonstrated current state in display circuit 105, issue instructions to output executing circuit 102 simultaneously, make to stir ripple motor 6 by output executing circuit 102 to start to rotate, make magnetron start heating simultaneously, and the corresponding components and parts of Flat-plate microwave oven are started working; Stir driven rotary dish 7 when ripple motor 6 works to work together with cam mechanism 91, when cam mechanism 91 rotates, lug boss on cam mechanism 91 911 pairs of buttons 92 are pressed and upspring, along with button 92 be pressed time, socket J1 on keypad is connected, and the C point voltage in testing circuit 101 equals VDD; Along with button 92 is upspring, the socket J1 on keypad is disconnected, and the C point voltage in testing circuit 101 equals GND; Through the filter circuit that the first resistance R1 and electric capacity C1 form, signal feedback C point voltage being equaled VDD or equals GND is to single chip machine controlling circuit 103; Whether single chip machine controlling circuit 103 judges to stir ripple motor 6 according to the signal that testing circuit 101 feedback is come working properly.If the signal that testing circuit 101 feeds back is all VDD or GND always, so stir ripple motor 6 not work, single chip machine controlling circuit 103 stops the heating work of micro-wave oven with regard to the code that sends instructions at once to output executing circuit 102, also send instructions code to display circuit 105 simultaneously, display failure code, prompting maintenance personal keep in repair microwave Jiao Bo mechanism.
Embodiment two
With embodiment one unlike, the button 92 in described testing agency and keypad 94 replace to microswitch 95, and microswitch 95 is fixed on electric machine support 93, shown in Figure 6.In testing circuit 101, the first end of socket J1 is connected with the first end of microswitch in testing agency 95, and second end of socket J1 is connected with the second end of microswitch in testing agency 95.
Embodiment three
With embodiment one unlike, described testing agency comprises being connected to stirs on ripple motor 6 power output shaft 61, can stir the magnet 96 rotated under the drive of ripple motor 6 power output shaft 61, be arranged on stir ripple motor 6 power output shaft 61 side, can magnet 96 near time conducting, magnet 96 away from time the tongue tube 97 that disconnects; Shown in Figure 7.In testing circuit 101, the first end of socket J1 is connected with the first end of tongue tube in testing agency 97, and second end of socket J1 is connected with the second end of tongue tube in testing agency 97.
Claims (10)
1. a checkout gear for microwave stirring mechanism of flat plate-type microwave oven, is characterized in that: comprise
Testing agency, for detecting the duty of stirring ripple motor of microwave Jiao Bo mechanism;
Executing agency, is connected with the signal output part of described testing agency, cuts off the power supply of the electrical heating elements of Flat-plate microwave oven during for detecting when testing agency and stirring the work of ripple motor abnormal in time.
2. the checkout gear of microwave stirring mechanism of flat plate-type microwave oven according to claim 1, is characterized in that: described executing agency comprises
Testing circuit, is connected with the signal output part of described testing agency, for detecting the duty of stirring ripple motor;
Output executing circuit, for controlling the electrical heating elements of Flat-plate microwave oven or/and stir the work of ripple motor;
Single chip machine controlling circuit, is connected with the output of testing circuit, for processing the output signal of testing circuit and exporting control signal to described output executing circuit.
3. the checkout gear of microwave stirring mechanism of flat plate-type microwave oven according to claim 2, it is characterized in that: described executing agency also comprises display circuit, this display circuit is connected with described single chip machine controlling circuit, for showing the result of single chip machine controlling circuit.
4. the checkout gear of the microwave stirring mechanism of flat plate-type microwave oven according to Claims 2 or 3, is characterized in that: described single chip machine controlling circuit is also connected with the input circuit of Flat-plate microwave oven.
5. the checkout gear of the microwave stirring mechanism of flat plate-type microwave oven according to claim 1 or 2 or 3, it is characterized in that: described testing agency comprises: be set in and stir on ripple motor power output shaft, can the cam mechanism rotated under the drive of ripple motor power output shaft stirred, be arranged on cam mechanism side, can be pressed by the lug boss of cam mechanism and when the button can upspring under himself elastic force effect after the lug boss of cam mechanism turns on.
6. the checkout gear of microwave stirring mechanism of flat plate-type microwave oven according to claim 5, is characterized in that: described in stir ripple motor and be fixed on electric machine support, described button is arranged on keypad, and keypad is fixed on electric machine support.
7. the checkout gear of the microwave stirring mechanism of flat plate-type microwave oven according to claim 1 or 2 or 3, it is characterized in that: described testing agency comprises: be set in and stir on ripple motor power output shaft, can the cam mechanism rotated under the drive of ripple motor power output shaft stirred, be arranged on cam mechanism side, the microswitch of the lug boss process of cam mechanism can be detected.
8. the checkout gear of microwave stirring mechanism of flat plate-type microwave oven according to claim 7, is characterized in that: described in stir ripple motor and be fixed on electric machine support, described microswitch is fixed on electric machine support.
9. the checkout gear of the microwave stirring mechanism of flat plate-type microwave oven according to claim 1 or 2 or 3, it is characterized in that: described testing agency comprises: be connected to and stir on ripple motor power output shaft, can the magnet rotated under the drive of ripple motor power output shaft stirred, be arranged on stir ripple motor power output shaft side, can magnet near time conducting, magnet away from time the tongue tube that disconnects.
10. the checkout gear of microwave stirring mechanism of flat plate-type microwave oven according to claim 9, is characterized in that: described in stir ripple motor and be fixed on electric machine support, described tongue tube is fixed on electric machine support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435066.XA CN102519057B (en) | 2011-12-22 | 2011-12-22 | Device for detecting microwave stirring mechanism of flat plate-type microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435066.XA CN102519057B (en) | 2011-12-22 | 2011-12-22 | Device for detecting microwave stirring mechanism of flat plate-type microwave oven |
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| Publication Number | Publication Date |
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| CN102519057A CN102519057A (en) | 2012-06-27 |
| CN102519057B true CN102519057B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110435066.XA Active CN102519057B (en) | 2011-12-22 | 2011-12-22 | Device for detecting microwave stirring mechanism of flat plate-type microwave oven |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107071951A (en) * | 2017-02-27 | 2017-08-18 | 广东美的厨房电器制造有限公司 | The stirring antenna module of microwave cooking utensil and microwave cooking utensil |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950014687A (en) * | 1993-11-13 | 1995-06-16 | 이헌조 | Microwave |
| TW410260B (en) * | 1997-10-30 | 2000-11-01 | Toshiba Corp | Microwave oven |
| KR100415824B1 (en) * | 2001-11-27 | 2004-01-24 | 삼성전자주식회사 | Microwave oven having a high frequency divergency device |
| KR20030056977A (en) * | 2001-12-28 | 2003-07-04 | 주식회사 엘지이아이 | Supporting device of stirrer fan in microwave oven |
| JP4979280B2 (en) * | 2006-06-19 | 2012-07-18 | パナソニック株式会社 | Microwave heating device |
| JP2010117108A (en) * | 2008-11-14 | 2010-05-27 | Panasonic Corp | High-frequency heating device with steam generating function |
| CN101839504A (en) * | 2009-03-19 | 2010-09-22 | 乐金电子(天津)电器有限公司 | Flat plate microwave oven |
| CN102119802B (en) * | 2010-12-31 | 2013-08-07 | 晶辉科技（深圳）有限公司 | Tea table base |
| CN202392850U (en) * | 2011-12-22 | 2012-08-22 | 宁波方太厨具有限公司 | Detection device for microwave stirring mechanism of flat plate microwave oven |
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