CN101843442A - Anti-dry heating soymilk machine and anhydrous anti-dry heating detecting method - Google Patents
Anti-dry heating soymilk machine and anhydrous anti-dry heating detecting method Download PDFInfo
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- CN101843442A CN101843442A CN201010163505.1A CN201010163505A CN101843442A CN 101843442 A CN101843442 A CN 101843442A CN 201010163505 A CN201010163505 A CN 201010163505A CN 101843442 A CN101843442 A CN 101843442A
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Abstract
The invention relates to an anti-dry heating soymilk machine and an anhydrous anti-dry heating detecting method, and the anti-dry heating soymilk machine comprises a water level detecting device, a main control chip and a peripheral hardware circuit thereof, wherein the peripheral hardware circuit comprises an anhydrous detecting circuit, and the anhydrous detecting circuit is connected with the water level detecting device, is used for detecting whether water exists in the cup body of the soymilk machine or not, and is characterized in that a fault detecting circuit is also connected in series between the anhydrous detecting circuit and the I/O port of the main control chip. By aiming at the deficiency of the prior art, the invention provides a safe soymilk machine and an anhydrous anti-dry heating detecting method, and the soymilk machine can accurately and reliably detect the faults of a water level detecting circuit and the water level detecting device and ensures the reliability of water level signals input to the main control chip.
Description
Technical field
The present invention relates to a kind of soy bean milk making machine and anhydrous safety detection method, relate in particular to the detection method of a kind of anti-dry soy bean milk making machine and anhydrous anti-dry.
Background technology
Most of soy bean milk making machine is to realize the anti-dry function of soy bean milk making machine by condensate tank of dehumidifier is set on the market; consider that may there be the situation of inefficacy in condensate tank of dehumidifier; the utility model patent that China Patent No. 200620055648.X, name are called " a kind of full-automatic soybean milk machine " has announced and a kind ofly has been connected with the technical scheme of electric resistance RT at the excessive low water level protection electrode that this technical scheme can realize the anti-dry protection by the temperature that detects cup under the situation of excessive low water level protection electrode failure.The protection scheme of prior art has postposition; will be after a period of time appears in dry-fire condition; could realize protection under the situation that the cup temperature obviously rises; and the accessory of some heat resistance differences may cause irreversible damage in this moment soy bean milk making machine; even cause security incident to occur, the user is sustained a loss.
Summary of the invention
The present invention is directed to the deficiency of prior art, a kind of safe soy bean milk making machine and anhydrous anti-dry detection method are provided, this soy bean milk making machine is the fault of sensed water level testing circuit and condensate tank of dehumidifier accurately and reliably.
The technical solution used in the present invention is:
A kind of anti-dry soy bean milk making machine, comprise condensate tank of dehumidifier, main control chip and peripheral hardware circuit thereof, described peripheral hardware circuit comprises anhydrous testing circuit, described anhydrous testing circuit is connected with condensate tank of dehumidifier, in order to detect in the soy bean milk making machine cup whether water is arranged, it is characterized in that: between the I/O of anhydrous testing circuit and main control chip mouth, also be in series with failure detector circuit.
Described failure detector circuit comprises the fault detect resistance R
3, described fault detect resistance R
3The I/O mouth of one termination and main control chip, the anhydrous testing circuit of another termination.
Described anhydrous testing circuit comprises filter capacitor C
1, pull-up resistor R
1With current-limiting resistance R
2, condensate tank of dehumidifier and filter capacitor C
1Parallel connection, filter capacitor C
1One end ground connection, the other end and pull-up resistor R
1An end, current-limiting resistance R
2An end connect pull-up resistor R
1The other end be connected current-limiting resistance R with power Vcc
2The other end be connected with main control chip.
The water level resistance of described condensate tank of dehumidifier is Rx.
A kind of anhydrous anti-dry detection method of anti-dry soy bean milk making machine is:
Detect simultaneously by anhydrous testing circuit and failure detector circuit in the cup of soy bean milk making machine whether water is arranged, all for water is arranged, then normally enter pulping program, otherwise report to the police as the two-way testing result.
Also be provided with the condensate tank of dehumidifier detection step of short circuit after described detection step whether over the ground, short circuit is then reported to the police over the ground, normally then enters pulping program.
Described anhydrous anti-dry detection method is arranged on before the normal pulping program of soy bean milk making machine.
The detection method of described anhydrous anti-dry can be provided with in the pulping process of described soy bean milk making machine, carries out once anhydrous anti-dry detection second every t, finishes described time t 〉=30 seconds until slurrying.
The detection method of described anhydrous anti-dry also can be provided with in the pulping process of described soy bean milk making machine, and anhydrous anti-dry detects and carries out n time, until the slurrying end, and described n 〉=1 time.
The anhydrous anti-dry detection method of another kind of anti-dry soy bean milk making machine is:
1) in the cup of condensate tank of dehumidifier detection soy bean milk making machine whether water is arranged, anhydrous then warning normally then enters next step; 2) sensed water level checkout gear short circuit whether over the ground, short circuit is then reported to the police over the ground, normally then enters next step; 3) whether the water level resistance R x of sensed water level checkout gear is normal, and undesired then warning normally then enters next step; 4) whether the anhydrous testing circuit of detection is normal; Fault is then reported to the police, and normally then enters next step; 5) enable anhydrous testing circuit and condensate tank of dehumidifier work;
Performing step 3) method of the anhydrous testing circuit of detection is: a) sensed water level checkout gear and filter capacitor C
1Short circuit whether over the ground, short circuit is then reported to the police over the ground, normally then enters next step; B) detect power Vcc and pull-up resistor circuit R
1Whether intact, fault is then reported to the police, and normally then enters next step.
The invention has the beneficial effects as follows:
The present invention has realized anhydrous reliable detection by the failure detector circuit of introducing condensate tank of dehumidifier and anhydrous testing circuit.The failure detector circuit owing to connected between the I/O mouth of condensate tank of dehumidifier and main control chip, described failure detector circuit comprises the fault detect resistance R
3, can judge have under the situation of water at condensate tank of dehumidifier, judge that in conjunction with further condensate tank of dehumidifier reaches the filter capacitor C in parallel with it by failure detector circuit, main control chip, anhydrous testing circuit
1Whether over the ground short circuit, power Vcc and pull-up resistor R
1Whether circuit is intact, whether the water level resistance R x resistance of condensate tank of dehumidifier in range of normal value, then starting warning device as anhydrous testing circuit fault reports to the police, normal as anhydrous testing circuit, guaranteed that then the water signal that has that main control chip obtains is reliable, avoid the anhydrous dry combustion method phenomenon that has the water signal to cause because of insecure, thereby avoided the potential safety hazard that causes thus.Adopt the anhydrous testing circuit of soy bean milk making machine of scheme of the present invention and anhydrous anti-dry detection method is safer, reliability is higher.
Description of drawings
The present invention is described in detail below in conjunction with drawings and the specific embodiments:
Fig. 1 is the schematic diagram of anhydrous testing circuit of soy bean milk making machine and failure detector circuit.
The parts and the circuit that have nothing to do with the present invention have been omitted in the accompanying drawing.
The specific embodiment
Embodiment as anti-dry soy bean milk making machine of the present invention, as shown in Figure 1, comprise condensate tank of dehumidifier, main control chip and peripheral hardware circuit thereof, described peripheral hardware circuit comprises anhydrous testing circuit, described anhydrous testing circuit is connected with condensate tank of dehumidifier, in order to detect in the soy bean milk making machine cup whether water is arranged, between the I/O of anhydrous testing circuit and main control chip mouth, also be in series with failure detector circuit.In the present embodiment, described failure detector circuit comprises the fault detect resistance R
3, described fault detect resistance R
3One end is that pin one 0 is connected with the I/O mouth of main control chip, the anhydrous testing circuit of another termination.
In the present embodiment, described anhydrous testing circuit comprises filter capacitor C
1, pull-up resistor R
1With current-limiting resistance R
2, the water level resistance of described condensate tank of dehumidifier is Rx, condensate tank of dehumidifier and filter capacitor C
1Parallel connection, filter capacitor one end ground connection, the other end and pull-up resistor R
1An end, current-limiting resistance R
2An end and fault detect resistance R
3The other end connect pull-up resistor R
1The other end be connected current-limiting resistance R with power Vcc
2The other end be connected with the pin one 1 of main control chip.Condensate tank of dehumidifier in the present embodiment is a level electrode, and described main control chip is a single-chip microcomputer.
Before above-mentioned anti-dry soy bean milk making machine is carried out normal pulping program, to carry out anhydrous anti-dry earlier and detect, a kind of concrete steps of detection method are as follows:
Whether water is arranged: the value that detects main control chip pin one 1 that is connected with anhydrous testing circuit and the main control chip pin one 0 that is connected with failure detector circuit simultaneously in the cup of detection soy bean milk making machine, if detected value is all in the scope of the value that water is arranged, then judge water is arranged, normally enter pulping program, otherwise report to the police.
Whether over the ground the condensate tank of dehumidifier detection step of short circuit can also be set: detect the value of the main control chip pin one 1 that is connected with anhydrous testing circuit,, then normally enter pulping program, otherwise short circuit is reported to the police then over the ground if detected value is non-vanishing after above-mentioned detection step.
The concrete steps of another kind of detection method are as follows:
Whether 1) condensate tank of dehumidifier detects water in the soy bean milk making machine: main control chip is set to input or high-impedance state with I/O interface pin 10, detect the value of main control chip pin one 1, if detected value is in the scope of the value that water is arranged, then judge water is arranged, enter next step, otherwise carry out fault alarm and stop slurrying;
2) the filter capacitor C in sensed water level checkout gear and the anhydrous testing circuit
1Whether over the ground short circuit: main control chip is set to input or high-impedance state with I/O interface pin 10, detect the value of main control chip pin one 1, if detected value is non-vanishing, then normally then enter next step, otherwise condensate tank of dehumidifier and/or filter capacitor be short circuit over the ground, then carries out fault alarm and stops slurrying;
3) detect power supply V
CCAnd pull-up resistor R
1Whether circuit is normal: main control chip detects the value of main control chip pin one 1 with I/O interface pin 10 output low levels, if detected value is pull-up resistor R
1With the fault detect resistance R
3Series connection is to power supply V
CCCurrent-limiting resistance R after the dividing potential drop
2Whether the magnitude of voltage of getting is normal, normally enters next step, and fault is then carried out fault alarm and stopped slurrying;
4) sensed water level checkout gear R
XResistance whether normal: main control chip detects the value of main control chip pin one 1 with I/O interface pin 10 output high level, if detected value is a high level, then normally enters next step, and fault is fault alarm and stop slurrying then;
5) enable anhydrous testing circuit and condensate tank of dehumidifier work.
The fault detect resistance R owing between the I/O mouth of condensate tank of dehumidifier and main control chip, connected
3, can judge have under the situation of water at condensate tank of dehumidifier, by main control chip control and fault detect resistance R
3The different level value of I/O mouth output that connects detects the input value of the main control chip pin one 1 that is connected with anhydrous testing circuit, judge further whether condensate tank of dehumidifier and anhydrous testing circuit be normal, and whether the water level resistance R x resistance of condensate tank of dehumidifier is in range of normal value, then starting warning device as anhydrous testing circuit fault reports to the police, normal as anhydrous testing circuit, guaranteed that then the water signal that has that main control chip obtains is reliable, avoid the anhydrous dry combustion method phenomenon that has the water signal to cause because of insecure, thereby avoided the potential safety hazard that causes thus.
In the present embodiment, in the normal pulping process, also be provided with anhydrous anti-dry and detect step, in the pulping process, carry out once anhydrous anti-dry detection second, finish until slurrying every t, described time t is 30 seconds, so that in time monitor the water level abnormality situation in the pulping process, avoided in the pulping process because of insecure anhydrous dry combustion method phenomenon that has the water signal to cause, thereby avoided the potential safety hazard that causes thus.
Those skilled in the art are appreciated that in pulping process, can carry out anhydrous anti-dry and detect n time, and finish until slurrying described n 〉=1 time; Described condensate tank of dehumidifier also can adopt the multiple spot detection architecture by a plurality of resistance series connection level electrodes: as described resistance can be built in this level electrode in; Described resistance also can be arranged on the circuit control panel of soy bean milk making machine and with this level electrode and connect.This non-substantial change of the present invention also within protection scope of the present invention, is given an example here no longer one by one.
The present invention is not limited to the foregoing description, and the pulping process that does not exceed this paper content and spirit all should be thought to drop within protection scope of the present invention.
Claims (10)
1. anti-dry soy bean milk making machine, comprise condensate tank of dehumidifier, main control chip and peripheral hardware circuit thereof, described peripheral hardware circuit comprises anhydrous testing circuit, described anhydrous testing circuit is connected with condensate tank of dehumidifier, in order to detect in the soy bean milk making machine cup whether water is arranged, it is characterized in that: between the I/O of anhydrous testing circuit and main control chip mouth, also be in series with failure detector circuit.
2. anti-dry soy bean milk making machine according to claim 1 is characterized in that described failure detector circuit comprises the fault detect resistance R
3, described fault detect resistance R
3The I/O mouth of one termination main control chip, the anhydrous testing circuit of another termination.
3. anti-dry soy bean milk making machine according to claim 2 is characterized in that described anhydrous testing circuit comprises filter capacitor C
1, pull-up resistor R
1With current-limiting resistance R
2, the water level resistance of described condensate tank of dehumidifier is Rx, described condensate tank of dehumidifier and filter capacitor C
1Parallel connection, filter capacitor C
1One end ground connection, the other end and pull-up resistor R
1An end, current-limiting resistance R
2An end and fault detect resistance R
3The other end connect pull-up resistor R
1The other end be connected current-limiting resistance R with power Vcc
2The other end be connected with main control chip.
4. anhydrous anti-dry detection method as anti-dry soy bean milk making machine as described in the claim 1 to 3, it is characterized in that: detect simultaneously by anhydrous testing circuit and failure detector circuit in the cup of soy bean milk making machine whether water is arranged, as the two-way testing result all for water is arranged, then normally enter pulping program, otherwise report to the police.
5. according to the anhydrous anti-dry detection method of the described anti-dry soy bean milk making machine of claim 4, it is characterized in that also being provided with the condensate tank of dehumidifier detection step of short circuit after described detection step whether over the ground, short circuit is then reported to the police over the ground, normally then enters pulping program.
6. anhydrous anti-dry detection method according to claim 4 is characterized in that described anhydrous anti-dry detection method is arranged on before the normal pulping program of soy bean milk making machine.
7. anhydrous anti-dry detection method according to claim 4 is characterized in that in the pulping process of described soy bean milk making machine, carries out once anhydrous anti-dry detection second every t, and wherein finish until slurrying t 〉=30.
8. anhydrous anti-dry detection method according to claim 4 is characterized in that in the pulping process of described soy bean milk making machine, and anhydrous anti-dry detects and carries out n time, and wherein finish until slurrying n 〉=1.
9. anhydrous anti-dry detection method as anti-dry soy bean milk making machine as described in the claim 1 to 3 is characterized in that:
1) in the cup of condensate tank of dehumidifier detection soy bean milk making machine whether water is arranged, anhydrous then warning normally then enters next step;
2) sensed water level checkout gear short circuit whether over the ground, short circuit is then reported to the police over the ground, normally then enters next step;
3) whether the water level resistance of sensed water level checkout gear is normal, and undesired then warning normally then enters next step;
4) whether the anhydrous testing circuit of detection is normal; Fault is then reported to the police, and normally then enters next step;
5) enable anhydrous testing circuit and condensate tank of dehumidifier work;
10. according to the anhydrous anti-dry detection method of the described anti-dry soy bean milk making machine of claim 9, it is characterized in that the method that detects anhydrous testing circuit in the step 4) is:
A), first detection filter capacitor C
1Short circuit whether over the ground, short circuit is then reported to the police over the ground, normally then enters next step;
B), detect power Vcc and pull-up resistor circuit R
1Whether intact, fault is then reported to the police, and normally then enters next step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101635051A CN101843442B (en) | 2010-05-06 | 2010-05-06 | Anti-dry heating soymilk machine and anhydrous anti-dry heating detecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101635051A CN101843442B (en) | 2010-05-06 | 2010-05-06 | Anti-dry heating soymilk machine and anhydrous anti-dry heating detecting method |
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| CN101843442A true CN101843442A (en) | 2010-09-29 |
| CN101843442B CN101843442B (en) | 2012-01-11 |
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Cited By (5)
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| CN102062626A (en) * | 2010-11-05 | 2011-05-18 | 美的集团有限公司 | Dry combustion detection method of soybean milk machine |
| CN106546301A (en) * | 2017-01-19 | 2017-03-29 | 吉林省水土保持科学研究院 | Modular electrode level chi |
| CN107374407A (en) * | 2017-08-21 | 2017-11-24 | 九阳股份有限公司 | A kind of control method of soy bean milk making machine |
| CN111157816A (en) * | 2019-12-31 | 2020-05-15 | 宁波奥克斯电气股份有限公司 | Failure detection method and device for water inlet valve and steam box |
| CN112754323A (en) * | 2019-10-21 | 2021-05-07 | 九阳股份有限公司 | Food processing machine and waterless detection method of food processing machine |
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| CN201402968Y (en) * | 2009-04-29 | 2010-02-10 | 九阳股份有限公司 | Pulping circuit of soymilk maker |
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| CN101229018A (en) * | 2007-01-22 | 2008-07-30 | 李茂环 | Control unit of drinking water dispensers |
| CN201364481Y (en) * | 2009-01-05 | 2009-12-16 | 李学滨 | Fully-automatic multifunctional controller for soymilk maker |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102062626A (en) * | 2010-11-05 | 2011-05-18 | 美的集团有限公司 | Dry combustion detection method of soybean milk machine |
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| CN106546301A (en) * | 2017-01-19 | 2017-03-29 | 吉林省水土保持科学研究院 | Modular electrode level chi |
| CN107374407A (en) * | 2017-08-21 | 2017-11-24 | 九阳股份有限公司 | A kind of control method of soy bean milk making machine |
| CN107374407B (en) * | 2017-08-21 | 2020-10-27 | 九阳股份有限公司 | Control method of soybean milk machine |
| CN112754323A (en) * | 2019-10-21 | 2021-05-07 | 九阳股份有限公司 | Food processing machine and waterless detection method of food processing machine |
| CN111157816A (en) * | 2019-12-31 | 2020-05-15 | 宁波奥克斯电气股份有限公司 | Failure detection method and device for water inlet valve and steam box |
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| CN101843442B (en) | 2012-01-11 |
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