CN108836138A - A kind of motor protection method of food processor - Google Patents
A kind of motor protection method of food processor Download PDFInfo
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- CN108836138A CN108836138A CN201810989392.7A CN201810989392A CN108836138A CN 108836138 A CN108836138 A CN 108836138A CN 201810989392 A CN201810989392 A CN 201810989392A CN 108836138 A CN108836138 A CN 108836138A
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- motor
- temperature
- normal temperature
- temperature value
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Food-Manufacturing Devices (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The embodiment of the invention discloses a kind of motor protection method of food processor, which may include temperature sensor and motor, and this method may include：The temperature of motor body is detected by temperature sensor；The temperature for the motor body that will test out is compared at least two preset normal temperature values；The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.By the example scheme, realizes in the case where not constrained by various specified conditions, motor is monitored in real time and is protected, keeps product more reliable.
Description
Technical field
The present embodiments relate to cooking equipment control technology, espespecially a kind of motor protection method of food processor.
Background technique
The realization of the slurrying function of food processor (such as soy bean milk making machine) be unable to do without heating and crushes, and heating keeps added material ripe
Change, nutrition release simultaneously high-temperature sterilization, crushing, which makes added material be divided into smaller size, carries out nutrition release, while more suitable
Conjunction is drunk.
Under normal conditions, the heating of food processor is realized by heating device (such as heating tube/disk/chamber), and crushing is
It is realized by motor band cutting blade high-speed revolution shearing material.In special situation, motor is during the work time because of its efficiency
A large amount of heat can be generated, and because closed working environment locating for motor can not radiate, the temperature of motor body can be very high.
Because each accessory has heatproof limit when design of electrical motor, motor will lead to when motor temperature is more than the heatproof of its accessory
Performance decline, will lead to motor damage when motor works long hours under the high temperature conditions, and complete machine can not normally complete slurrying work.
Electromotor high-temperature damage is since high temperature causes magnet wire insulation to fail, and short circuit burns out electricity between enameled wire
Machine generates the circuit board damage that high current also results in control motor when because of short circuit.The maintenance of motor and circuit board be replaced with
This is very high.
In view of the above problems, having corresponding countermeasure for the temperature of motor at present, that is, pass through structure design and slurrying process
Cooperation guarantees that user can be recycled under most harsh slurrying process and under nominal load with continuous work 3, and keeps motor
Temperature rise is no more than design of electrical motor standard.
Above-mentioned method, it is helpful for the temperature rise for controlling motor, but help to be only limitted to user in various specific conditions
It does not go wrong for continuous 3 times down, if being detached from above-mentioned various specified conditions, motor can not be effectively protected.
Summary of the invention
The embodiment of the invention provides a kind of motor protection methods of food processor, can be not by various specified conditions
In the case where constraint, motor is monitored in real time and is protected, keeps product more reliable.
In order to achieve the purpose that the embodiment of the present invention, the embodiment of the invention provides a kind of electric motor protectings of food processor
Method, the food processor may include temperature sensor and motor, and this method may include：
The temperature of motor body is detected by temperature sensor；
The temperature for the motor body that will test out is compared at least two preset normal temperature values；
The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.
Optionally, preset normal temperature value includes：First normal temperature value T1, the second normal temperature value T2 and third mark
Quasi- temperature value T3；
Wherein, the first normal temperature value T1 is less than third mark less than the second normal temperature value T2, the second normal temperature value T2
Quasi- temperature value T3, third normal temperature value T3 are less than or equal to the failure of insulation temperature value of motor body.
Optionally, may include according to the work technique that comparison result adjusts motor：
When the temperature of the motor body detected is less than or equal to the first normal temperature value T1, control motor is according in advance
The work process operation of setting；
When the temperature of the motor body detected is greater than the first normal temperature value T1, less than or equal to the second normal temperature value
When T2, each motor operation range time controlled in preset work technique increases by the first preset value；
When the temperature of the motor body detected is greater than the second normal temperature value T2, when being less than third normal temperature value T3,
The each motor operation range time controlled in preset work technique increases by the second preset value, and reduces the operation of motor
Power；
When the temperature of the motor body detected is greater than or equal to third normal temperature value T3, control food processor is stopped
It only works, and starts to work again after reminding user to wait preset duration.
Optionally, this method can also include：
Calculate each slurrying and terminate, when motor stops working motor body end temperature, and according to calculated motor
The end temperature of ontology adjusts total mixing time of subsequent slurrying process.
Optionally, it calculates each slurrying and terminates, the end temperature of motor body includes when motor stops working：By following
The first default equation calculate this and terminate temperature：
Tem_end=tem_now+TL1* Δ Tem_Rise-TL2* Δ Tem_Fall；
Wherein, tem_end is to terminate temperature；Tem_now is the Current Temperatures for the motor body that current detection goes out；ΔTem_
Rise is the temperature rate-of-rise that calculated motor body is synchronized when the temperature of motor body reaches the first normal temperature value T1；
Δ Tem_Fall is that the temperature rise of motor body when motor does not work reduces rate；TL1 is to count from current time, entire slurrying
The remaining working time of motor in process；TL2 is to count from current time, when the residue of motor is idle in entire slurrying process
Between.
It optionally, can be with according to total mixing time that the end temperature of calculated motor body adjusts subsequent slurrying process
Including：
Calculated end temperature is compared with the second normal temperature value T2 and third normal temperature value T3；
Total mixing time of subsequent slurrying process is adjusted according to comparison result.
Optionally, include according to total mixing time that comparison result adjusts subsequent slurrying process：
It is greater than or equal to the second normal temperature value T2 when terminating temperature, when being less than third normal temperature value T3, next
In slurrying process, controls each motor operation range time and increase third preset value, to extend total mixing time；
When terminating temperature and being greater than third normal temperature value T3, the first duration is calculated according to the second default equation, and
In next slurrying process, the control motor working time reduces by the first duration, to reduce total mixing time.
Optionally, this method can also include：The initial temperature of motor body is detected in food processor power-up initializing
Degree, and determined whether to enter slurrying process according to the size of initial temperature.
The embodiment of the invention also provides a kind of motor protection method of food processor, which may include
Motor, the food processor can also include voltage check device and current detection means, and this method may include：
The operating voltage and operating current of real-time detection motor, and motor is calculated according to operating voltage and operating current in real time
Operating power Pi；
The operating power Pi for the motor that will test out is compared with preset calibration power Ps；
The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.
Optionally, may include according to the work technique that comparison result adjusts motor：
It, will be electric when the operating power Pi that first time comparison result is the motor detected is greater than or equal to calibration power Ps
The operating power Pi of machine is reduced to m1*Ps and completes when time crushing；
When the operating power Pi that continuous n1 times comparison result is the motor detected is greater than or equal to calibration power Ps,
The operating power Pi of motor is reduced to m2*Ps to complete when time crushing；
When the operating power Pi that continuous n2 times comparison result is the motor detected is greater than or equal to calibration power Ps,
The operating power Pi of motor is reduced to m3*Ps to complete when time crushing；
Wherein, m1 > m2 > m3；N2 > n1；N1 and n2 is the positive integer greater than 1, and m1, m2, m3 are positive number.
The beneficial effect of the embodiment of the present invention may include：
1, the food processor of the embodiment of the present invention may include temperature sensor and motor, and this method may include：It is logical
The temperature of excess temperature sensor detection motor body；The temperature for the motor body that will test out and at least two preset standard temperature
Angle value compares；The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.Pass through the embodiment side
Case realizes in the case where not constrained by various specified conditions, is monitored in real time and protected to motor, product is made more may be used
It leans on.
2, the preset normal temperature value of the embodiment of the present invention includes：First normal temperature value T1, the second normal temperature value
T2 and third normal temperature value T3；Wherein, the first normal temperature value T1 is less than the second normal temperature value T2, the second normal temperature value
T2 is less than third normal temperature value T3, and third normal temperature value T3 is less than or equal to the failure of insulation temperature value of motor body.It is logical
The example scheme is crossed, the three-level temperature protection to motor is realized, so that limiting motor body temperature is exceeded, guarantees motor not
Damage.
3, the work technique for adjusting motor according to comparison result of the embodiment of the present invention may include：When the motor detected
When the temperature of ontology is less than or equal to the first normal temperature value T1, motor is controlled according to preset work process operation；When
The temperature of the motor body detected is greater than the first normal temperature value T1, when being less than or equal to the second normal temperature value T2, control
Each motor operation range time in preset work technique increases by the first preset value；When the motor body detected
Temperature is greater than the second normal temperature value T2, when being less than third normal temperature value T3, controls every in preset work technique
Secondary motor operation range time increases by the second preset value, and reduces the operation power of motor；When the temperature of the motor body detected
When degree is greater than or equal to third normal temperature value T3, control food processor stops working, and user is reminded to wait preset duration
It starts to work again afterwards.By the example scheme, the temperature different temperature standard achieved for motor body is realized
Slurrying process accordingly is adjusted, the limiting motor body temperature in the case where not constrained by various specified conditions is furthermore achieved
It is exceeded, and motor is protected on the basis of guaranteeing effects on slurry making.
4, the method for the embodiment of the present invention can also include：It calculates each slurrying and terminates, motor sheet when motor stops working
The end temperature of body, and adjust according to the end temperature of calculated motor body total mixing time of subsequent slurrying process.It is logical
The example scheme is crossed, ensure that user can completely finish one pot of food (such as finishing cassoulet slurry) and be unlikely to motor damage
It is bad.
5, the method for the embodiment of the present invention can also include：The detection motor body in food processor power-up initializing
Initial temperature, and determined whether to enter slurrying process according to the size of initial temperature.By the example scheme, high temperature one is considered
As be to be examined before slurrying starts since user's continuous slurrying causes motor temperature not return to suitable low temperature based on the reason
Measured motor temperature guarantees that the initial temperature of motor is unlikely to excessively high, to controlling the temperature rise of entire pulping process motor one
A ideal section can also help the component on circuit board to reduce temperature rise, so that complete machine is relatively reliable in this way.
6, the food processor of the embodiment of the present invention may include motor, which can also include voltage detecting
Device and current detection means, this method may include：The operating voltage and operating current of real-time detection motor, and according to work
Voltage and operating current calculate the operating power Pi of motor in real time；The operating power Pi for the motor that will test out and preset standard
Power P s compares；The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.Pass through the embodiment
Scheme so that when having no idea to be arranged motor temperature detection due to structure or circuit limitation, can by power detection and
Motor temperature rise is effectively reduced in drop Power Processing.
The other feature and advantage of the embodiment of the present invention will illustrate in the following description, also, partly from explanation
It is become apparent in book, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide one for further understanding technical solution of the embodiment of the present invention, and constituting specification
Point, it is used to explain the present invention the technical solution of embodiment together with embodiments herein, does not constitute to the embodiment of the present invention
The limitation of technical solution.
Fig. 1 is a kind of motor protection method flow chart of food processor of the embodiment of the present invention；
Fig. 2 is that the end temperature according to calculated motor body of the embodiment of the present invention adjusts the total of subsequent slurrying process
The method flow diagram of mixing time；
Fig. 3 is the motor protection method flow chart of another food processor of the embodiment of the present invention.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing pair
The embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Embodiment one
The embodiment of the invention provides a kind of motor protection method of food processor, which may include temperature
Sensor and motor are spent, as shown in Figure 1, this method may include S101-S103：
S101, the temperature that motor body is detected by temperature sensor；
S102, the motor body that will test out temperature compared at least two preset normal temperature values；
S103, the work technique that motor is adjusted according to comparison result, to carry out temperature rise protection to motor.
In embodiments of the present invention, food processor can be by operation interface, control circuit board, heating module, crushing chamber
And the components such as motor composition, wherein governor circuit or main control chip has can be set in control circuit board；It can on motor body
Temperature sensor is arranged, the motor body temperature signal that temperature sensor can will test out is supplied to the main control chip.
In embodiments of the present invention, by the way that auxiliary detection signal combination slurrying process, intelligent recognition food each time is arranged
The operating condition and state of motor are realized and are monitored in real time to motor so as to adjust its work technique when processing machine works
With protection, to keep product more reliable.
In embodiments of the present invention, the concrete type of temperature sensor, model, quantity and setting position are not limited
System.
In embodiments of the present invention, the particular number for the preset normal temperature value and numerical value with no restrictions, can be with
Using any normal temperature value that can be implemented.
Embodiment two
The embodiment on the basis of example 1, gives several specific embodiments of normal temperature value.
Optionally, which may include：First normal temperature value T1, the second normal temperature value T2 and
Third normal temperature value T3；
Wherein, the first normal temperature value T1 is less than third mark less than the second normal temperature value T2, the second normal temperature value T2
Quasi- temperature value T3, third normal temperature value T3 are less than or equal to the failure of insulation temperature value of motor body.
In embodiments of the present invention, which realizes the three-level temperature protection to motor, thus limiting motor
Body temperature is exceeded, guarantees that motor does not damage.
In embodiments of the present invention, third normal temperature value T3 can be set to close to motor body failure of insulation temperature
Point, motor is possible to damage under the failure of insulation temperature spot, passes through the setting of third normal temperature value T3, it can be ensured that electricity
Machine body temperature is not exceeded, to guarantee the safety of motor.
Embodiment three
The embodiment on the basis of example 2, gives one kind that the work technique of motor is adjusted according to comparison result
Specific embodiment.
Optionally, the case where work technique of motor may include following 1-4 is adjusted according to comparison result：
1, when the temperature of the motor body detected is less than or equal to the first normal temperature value T1, control motor is according to pre-
The work process operation first set.
In embodiments of the present invention, in motor operation course, when detecting motor body temperature lower than the first standard temperature
When angle value T1, within the temperature range of illustrating that current motor body temperature is maintained at and is perfectly safe, therefore it can turn according to original setting
Speed operation.
2, when the temperature of the motor body detected is greater than the first normal temperature value T1, less than or equal to the second normal temperature
When value T2, each motor operation range time controlled in preset work technique increases by the first preset value.
In embodiments of the present invention, in motor operation course, detect that motor body temperature is more than the first normal temperature
Value T1 and when being lower than the second normal temperature value T2, each motor operation range time can increase Δ T1, and (i.e. above-mentioned first is pre-
If value).
In embodiments of the present invention, with no restrictions for the specific value of first preset value, it can be answered according to different
With scene self-defining.
In embodiments of the present invention, in the case where radiator structure determines, the temperature of motor and the working condition of itself have
It closes, revolving speed or power are higher, and temperature rise is higher, and the working time is longer, and its temperature rise is also higher, and motor gradation operating ratio is continuous
It is lower to run temperature rise, therefore interval time longer cooling ascending effect is better twice for motor.
In embodiments of the present invention, the exceeded situation of motor temperature rise is generally present in during the multiple continuous slurrying of user,
Therefore, when temperature is protected more than the first order, i.e., motor body temperature is greater than or equal to the first normal temperature value T1, can pass through
Extend mixing time, increases the waiting time (the first such as above-mentioned preset value) between motor operation, so that the temperature rise of motor body
Controllably.Because the revolving speed of motor and operation are not reduced total time, crush efficiency is not deteriorated, it is ensured that effects on slurry making.From
For user perspective, when needing continuous production food, when such as soya-bean milk, the slurrying round slurrying period rearward can be elongated.
3, when the temperature of the motor body detected is greater than the second normal temperature value T2, less than third normal temperature value T3
When, each motor operation range time controlled in preset work technique increases by the second preset value, and reduces motor
Run power.
In embodiments of the present invention, in motor operation course, detect that motor body temperature is more than the second normal temperature
Value T2 and when being lower than third normal temperature value T3, each motor operation range time can increase Δ T2, and (i.e. above-mentioned second is pre-
If value), power of motor can carry out downshift processing.
In embodiments of the present invention, with no restrictions for the specific value of second preset value, it can be answered according to different
With scene self-defining.And second preset value can be identical as the first above-mentioned preset value, can also be different.
In embodiments of the present invention, when temperature is in second level protection, i.e., the temperature of motor body is greater than the second standard
Temperature value T2 and when being less than third normal temperature value T3, unless abnormal conditions, illustrates that user is carrying out continuous slurrying, can prolong
Revolving speed or power are reduced on the basis of the long slurrying period, for protecting motor temperature rise.Powder can be sacrificed by reducing revolving speed or power
Broken efficiency, but user still can be used.
4, when the temperature of the motor body detected is greater than or equal to third normal temperature value T3, food processor is controlled
It stops working, and starts to work again after reminding user to wait preset duration.
In embodiments of the present invention, when motor temperature rise reaches third level protection, i.e. the temperature of motor body is greater than or waits
When third normal temperature value T3, it may be possible to which motor exception or user occurs in continuous use food processor, for safety
Consider, it is necessary to stop motor and work and remind user.
Example IV
The embodiment is on the basis of above-mentioned any embodiment, the temperature of motor at the end of giving by calculating slurrying in real time
Degree, to adjust the example scheme of total mixing time in real time.
Optionally, this method can also include：
Calculate each slurrying and terminate, when motor stops working motor body end temperature, and according to calculated motor
The end temperature of ontology adjusts total mixing time of subsequent slurrying process.
Optionally, it calculates each slurrying and terminates, the end temperature of motor body may include when motor stops working：Pass through
The default equation of following first, which calculates this, terminates temperature：
Tem_end=tem_now+TL1* Δ Tem_Rise-TL2* Δ Tem_Fall；
Wherein, tem_end is to terminate temperature；Tem_now is the Current Temperatures for the motor body that current detection goes out；ΔTem_
Rise is the temperature rate-of-rise that calculated motor body is synchronized when the temperature of motor body reaches the first normal temperature value T1；
Δ Tem_Fall is that the temperature rise of motor body when motor does not work reduces rate；TL1 is to count from current time, entire slurrying
The remaining working time of motor in process；TL2 is to count from current time, when the residue of motor is idle in entire slurrying process
Between.
In embodiments of the present invention, when triggering first order protection in the food processor course of work, can start to synchronize
Detect temperature rise Δ Tem_Rise=(tem12-tem11)/(t12-t11) of motor body；Wherein, tem12 and tem11 are respectively
The temperature value successively detected twice, t12 and t11 are successively to detect corresponding time point twice.
In embodiments of the present invention, motor body temperature rise reduces rate Δ Tem_Fall=(tem22- when motor does not work
tem21)/(t22-t21)；Wherein, tem22 and tem21 is respectively the temperature value successively detected twice, and t22 and t21 are successive
Corresponding time point is detected twice.
In embodiments of the present invention, motor residue working time TL1 and motor can be recorded in real time in conjunction with slurrying process
Remaining free time TL2, can be real by formula tem_end=tem_now+TL1* Δ Tem_Rise-TL2* Δ Tem_Fall
When calculate temperature at the end of motor, that is, terminate temperature.
Optionally, as shown in Fig. 2, adjusting total system of subsequent slurrying process according to the end temperature of calculated motor body
Starching the time may include S201-S202：
S201, calculated end temperature is compared with the second normal temperature value T2 and third normal temperature value T3；
S202, total mixing time that subsequent slurrying process is adjusted according to comparison result.
Optionally, may include according to total mixing time that comparison result adjusts subsequent slurrying process：
It is greater than or equal to the second normal temperature value T2 when terminating temperature, when being less than third normal temperature value T3, next
In slurrying process, controls each motor operation range time and increase third preset value, to extend total mixing time；
When terminating temperature and being greater than third normal temperature value T3, the first duration is calculated according to the second default equation, and
In next slurrying process, the control motor working time reduces by the first duration, to reduce total mixing time.
In embodiments of the present invention, it if T2≤tem_end < T3, can take and 2 class of scheme in embodiment three
As mode, i.e. each motor operation range time increases Δ T3 (i.e. above-mentioned third preset value).
In embodiments of the present invention, if tem_end >=T3, above-mentioned relational expression T_reduce=can be passed through
(tem_end-T3)/Δ Tem_Rise, which is calculated, needs the reduced motor working time, i.e., the first above-mentioned duration；Subsequent
In slurrying process, the motor working time can be reduced T_reduce+TK (wherein TK is corrected parameter, and TK can be positive, be for
Corrected Calculation error, guarantees that motor temperature rise has certain temperature rise surplus).
In embodiments of the present invention, the shortcomings that scheme in embodiment three, is, when motor the machine temperature rise reaches the third level
When protection, slurrying can be stopped and report failure, user experience is bad, and compared to the scheme of embodiment three, which passes through
Extend the waiting time of user and sacrifice certain effects on slurry making and solves the problems, such as slurrying termination.
Embodiment five
The embodiment gives on the basis of above-mentioned any embodiment and detects motor body temperature by power-up initializing
Degree adjusts slurrying process, realizes the example scheme for guaranteeing motor temperature rise.
Optionally, this method can also include：The initial temperature of motor body is detected in food processor power-up initializing
Degree, and determined whether to enter slurrying process according to the size of initial temperature.
In embodiments of the present invention, in slurrying main flow, initial phase can detecte the initial temperature of motor body
Tem, and adjustment temperature spot is set as Tem0；As motor initial temperature Tem > Tem0, slurrying process can not be entered, entered
Loitering phase, and in loitering phase real-time detection motor body temperature, when motor body temperature is restored to preset temperature Tem0_R
When, then start slurrying process.
In embodiments of the present invention, it when occurring electromotor high-temperature in pulping process, can also be held according to the example scheme
Row.
In embodiments of the present invention, the temperature rise for starting to control motor again after slurrying process starts has hysteresis quality, for a long time
It will affect the performance of motor in high temperature, this embodiment scheme considers that high temperature is typically due to user's continuous slurrying and leads to motor temperature
Degree does not return to suitable low temperature, detects motor temperature before slurrying starts based on the reason, guarantees the initial temperature of motor
It is unlikely to excessively high, so that the temperature rise of entire pulping process motor is controlled in an ideal section, it in this way can also band
Carry out other benefit, is just to aid in the component on circuit board by temperature rise, so that complete machine is relatively reliable.
Embodiment six
This embodiment gives the motor protection method embodiments of another food processor.
The embodiment of the invention also provides a kind of motor protection method of food processor, which may include
Motor, which can also include voltage check device and current detection means, as shown in figure 3, this method can wrap
Include S301-S303：
S301, the operating voltage of real-time detection motor and operating current, and counted in real time according to operating voltage and operating current
Calculate the operating power Pi of motor；
S302, the motor that will test out operating power Pi compared with preset calibration power Ps；
S303, the work technique that motor is adjusted according to comparison result, to carry out temperature rise protection to motor.
In embodiments of the present invention, line voltage detection U can be set in control circuit board, while in motor circuit
Current detecting I is set, power of motor can be obtained by formula Pi=K*U*I (K is motor working efficiency).
In embodiments of the present invention, which eliminates temperature detection with respect to the scheme of embodiment one to four, leads to
Power of motor adjustment is crossed to protect motor temperature rise not exceeded.
In embodiments of the present invention, it by the example scheme, realizes since structure or circuit limitation are had no idea
When motor temperature detection is set, motor temperature rise can be effectively reduced by power detection and drop Power Processing.
Embodiment seven
The embodiment gives one kind that the work technique of motor is adjusted according to comparison result on the basis of embodiment six
Specific embodiment.
Optionally, may include according to the work technique that comparison result adjusts motor：
It, will be electric when the operating power Pi that first time comparison result is the motor detected is greater than or equal to calibration power Ps
The operating power Pi of machine is reduced to m1*Ps and completes when time crushing；
When the operating power Pi that continuous n1 times comparison result is the motor detected is greater than or equal to calibration power Ps,
The operating power Pi of motor is reduced to m2*Ps to complete when time crushing；
When the operating power Pi that continuous n2 times comparison result is the motor detected is greater than or equal to calibration power Ps,
The operating power Pi of motor is reduced to m3*Ps to complete when time crushing；
Wherein, m1 > m2 > m3；N2 > n1；N1 and n2 is the positive integer greater than 1；M1, m2, m3 be fall power coefficient, m1,
M2, m3 are positive number.
In embodiments of the present invention, if realtime power Pi is greater than the calibration power Ps of this setting, control can be passed through
It makes silicon-controlled angle of flow reduction power of motor and completes this crushing to m1*Ps, each electric motor starting can be by this when working
It executes.
In embodiments of the present invention, if n1 times continuous, such as three times, motor actual power Pi is bigger than setting power P s,
Since the 4th time, if occurring Pi > Ps again, the power of motor can be further turned down to m2*Ps.
In embodiments of the present invention, if n2 times continuous, such as six times, motor actual power Pi is bigger than setting power P s,
Since the 7th time, if occurring Pi > Ps again, the power of motor can be further turned down to m3*Ps.
Embodiment eight
The embodiment gives the power assurance by controlling motor different temperature points on the basis of embodiment six or seven
The example scheme of motor temperature rise.
In embodiments of the present invention, through the foregoing embodiment it is found that the calculation relational expression of motor body temperature rise rate is：Δ
Tem_Rise=(tem12-tem11)/(t12-t11).
It in embodiments of the present invention, can when the real time temperature for detecting motor body is greater than the first normal temperature value T1
To carry out drop power adjustment to power of motor according to preset the first adjustment relational expression, wherein the first adjustment relational expression can be with
For：Pi=k1*Ps* (1/ Δ Tem_Rise).
It in embodiments of the present invention, can when the real time temperature for detecting motor body is greater than the second normal temperature value T2
To carry out drop power adjustment to power of motor according to preset second adjustment relational expression, wherein the second adjustment relational expression can be with
For：Pi=k2*Ps* (1/ Δ Tem_Rise).
In embodiments of the present invention, k1, k2 are drop corrected coefficient of power, k1 > k2.
In embodiments of the present invention, motor temperature rise is faster, illustrates that the heat production power of motor is bigger, and reducing power of motor can
Motor body temperature is effectively reduced, fall power coefficient is contacted with temperature rise rate foundation, can guarantee motor temperature in ideal circumstances
It rises and reaches balance.
Embodiment nine
The embodiment embodiment on the basis of give in conjunction with drop Power Processing and control circuit board thermometric realize pair
The example scheme of motor temperature rise protection.
In embodiments of the present invention, it under the premise of no electric motor temp, can continuously be made by circuit board thermometric
Slurry judgement.
In embodiments of the present invention, temperature-detecting device can be set in control circuit board, and when power-up initializing is detected
The temperature of control circuit board, when the temperature of control circuit board is higher than set temperature, it is possible to determine that user is in continuous slurrying；When sentencing
When determining user's continuous slurrying, directly motor can be carried out at drop power according to drop Power Processing scheme described in above-described embodiment
Reason.
In embodiments of the present invention, the example scheme for motor can not thermometric the case where, provide user and continuously make
Substitution protection scheme when slurry, further ensures the safety of motor, improves the reliability of food processor.
The beneficial effect of the embodiment of the present invention may include：
1, the food processor of the embodiment of the present invention may include temperature sensor and motor, and this method may include：It is logical
The temperature of excess temperature sensor detection motor body；The temperature for the motor body that will test out and at least two preset standard temperature
Angle value compares；The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.Pass through the embodiment side
Case realizes in the case where not constrained by various specified conditions, is monitored in real time and protected to motor, product is made more may be used
It leans on.
2, the preset normal temperature value of the embodiment of the present invention includes：First normal temperature value T1, the second normal temperature value
T2 and third normal temperature value T3；Wherein, the first normal temperature value T1 is less than the second normal temperature value T2, the second normal temperature value
T2 is less than third normal temperature value T3, and third normal temperature value T3 is less than or equal to the failure of insulation temperature value of motor body.It is logical
The example scheme is crossed, the three-level temperature protection to motor is realized, so that limiting motor body temperature is exceeded, guarantees motor not
Damage.
3, the work technique for adjusting motor according to comparison result of the embodiment of the present invention may include：When the motor detected
When the temperature of ontology is less than or equal to the first normal temperature value T1, motor is controlled according to preset work process operation；When
The temperature of the motor body detected is greater than the first normal temperature value T1, when being less than or equal to the second normal temperature value T2, control
Each motor operation range time in preset work technique increases by the first preset value；When the motor body detected
Temperature is greater than the second normal temperature value T2, when being less than third normal temperature value T3, controls every in preset work technique
Secondary motor operation range time increases by the second preset value, and reduces the operation power of motor；When the temperature of the motor body detected
When degree is greater than or equal to third normal temperature value T3, control food processor stops working, and user is reminded to wait preset duration
It starts to work again afterwards.By the example scheme, the temperature different temperature standard achieved for motor body is realized
Slurrying process accordingly is adjusted, the limiting motor body temperature in the case where not constrained by various specified conditions is furthermore achieved
It is exceeded, and motor is protected on the basis of guaranteeing effects on slurry making.
4, the method for the embodiment of the present invention can also include：It calculates each slurrying and terminates, motor sheet when motor stops working
The end temperature of body, and adjust according to the end temperature of calculated motor body total mixing time of subsequent slurrying process.It is logical
The example scheme is crossed, ensure that user can completely finish one pot of food (such as finishing cassoulet slurry) and be unlikely to motor damage
It is bad.
5, the method for the embodiment of the present invention can also include：The detection motor body in food processor power-up initializing
Initial temperature, and determined whether to enter slurrying process according to the size of initial temperature.By the example scheme, high temperature one is considered
As be to be examined before slurrying starts since user's continuous slurrying causes motor temperature not return to suitable low temperature based on the reason
Measured motor temperature guarantees that the initial temperature of motor is unlikely to excessively high, to controlling the temperature rise of entire pulping process motor one
A ideal section can also help the component on circuit board to reduce temperature rise, so that complete machine is relatively reliable in this way.
6, the food processor of the embodiment of the present invention may include motor, which can also include voltage detecting
Device and current detection means, this method may include：The operating voltage and operating current of real-time detection motor, and according to work
Voltage and operating current calculate the operating power Pi of motor in real time；The operating power Pi for the motor that will test out and preset standard
Power P s compares；The work technique of motor is adjusted, according to comparison result to carry out temperature rise protection to motor.Pass through the embodiment
Scheme so that when having no idea to be arranged motor temperature detection due to structure or circuit limitation, can by power detection and
Motor temperature rise is effectively reduced in drop Power Processing.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical assemblies；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Claims (10)
1. a kind of motor protection method of food processor, the food processor includes temperature sensor and motor, feature
It is, the method includes：
The temperature of motor body is detected by the temperature sensor；
The temperature for the motor body that will test out is compared at least two preset normal temperature values；
The work technique of the motor is adjusted, according to comparison result to carry out temperature rise protection to the motor.
2. the motor protection method of food processor according to claim 1, which is characterized in that the preset standard temperature
Angle value includes：First normal temperature value T1, the second normal temperature value T2 and third normal temperature value T3；
Wherein, the first normal temperature value T1 is less than the second normal temperature value T2, and the second normal temperature value T2 is small
It is less than or equal to the failure of insulation temperature of the motor body in the third normal temperature value T3, the third normal temperature value T3
Angle value.
3. the motor protection method of food processor according to claim 2, which is characterized in that described according to comparison result
The work technique for adjusting the motor includes：
When the temperature of the motor body detected is less than or equal to the first normal temperature value T1, the motor is controlled
According to preset work process operation；
When the temperature of the motor body detected is greater than the first normal temperature value T1, less than or equal to second mark
When quasi- temperature value T2, each motor operation range time increase by first controlled in the preset work technique is default
Value；
When the temperature of the motor body detected is greater than the second normal temperature value T2, less than the third normal temperature
When value T3, each motor operation range time controlled in the preset work technique increases by the second preset value, and drops
The operation power of the low motor；
When the temperature of the motor body detected is greater than or equal to the third normal temperature value T3, the food is controlled
Processing machine stops working, and starts to work again after reminding user to wait preset duration.
4. the motor protection method of food processor according to claim 2, which is characterized in that the method also includes：
Calculate each slurrying and terminate, when the motor stops working the motor body end temperature, and according to calculated
The end temperature of the motor body adjusts total mixing time of subsequent slurrying process.
5. the motor protection method of food processor according to claim 4, which is characterized in that described to calculate each slurrying
Terminate, the motor when stopping working the end temperature of the motor body include：It is calculated by the first following default equatioies
The end temperature：
Tem_end=tem_now+TL1* Δ Tem_Rise-TL2* Δ Tem_Fall；
Wherein, tem_end is the end temperature；Tem_now is the Current Temperatures for the motor body that current detection goes out；Δ
Tem_Rise is that the temperature of the motor body synchronizes the calculated motor sheet when reaching the first normal temperature value T1
The temperature rate-of-rise of body；Δ Tem_Fall is that the temperature rise of the motor body when motor does not work reduces rate；TL1
To be counted from current time, the remaining working time of motor described in entire slurrying process；TL2 is to count from current time, whole
The remaining free time of motor described in a slurrying process.
6. the motor protection method of food processor according to claim 4, which is characterized in that described according to calculated
Total mixing time that the end temperature of the motor body adjusts subsequent slurrying process includes：
The calculated end temperature is compared with the second normal temperature value T2 and the third normal temperature value T3；
Total mixing time of subsequent slurrying process is adjusted according to comparison result.
7. the motor protection method of food processor according to claim 4, which is characterized in that described according to comparison result
The total mixing time for adjusting subsequent slurrying process includes：
When the end temperature is greater than or equal to the second normal temperature value T2, is less than the third normal temperature value T3,
In next slurrying process, controls each motor operation range time and increase third preset value, when extending total slurrying
Between；
When the end temperature is greater than the third normal temperature value T3, the first duration is calculated according to the second default equation,
And in next slurrying process, the control motor working time reduces first duration, to reduce total mixing time.
8. the motor protection method of food processor described in -7 any one according to claim 1, which is characterized in that the side
Method further includes：The initial temperature of the motor body is detected in food processor power-up initializing, and according to described first
The size of beginning temperature determines whether to enter slurrying process.
9. a kind of motor protection method of food processor, the food processor include motor, which is characterized in that the food
Processing machine further includes voltage check device and current detection means, the method includes：
The operating voltage and operating current of motor described in real-time detection, and it is real-time according to the operating voltage and the operating current
Calculate the operating power Pi of the motor；
The operating power Pi for the motor that will test out is compared with preset calibration power Ps；
The work technique of the motor is adjusted, according to comparison result to carry out temperature rise protection to the motor.
10. the motor protection method of food processor according to claim 9, which is characterized in that it is described according to compare knot
The work technique that fruit adjusts the motor includes：
When the operating power Pi that first time comparison result is the motor detected is greater than or equal to the calibration power Ps,
The operating power Pi of the motor is reduced to m1*Ps to complete when time crushing；
When the operating power Pi that continuous n1 times comparison result is the motor detected is greater than or equal to the calibration power
When Ps, the operating power Pi of the motor is reduced to m2*Ps and is completed when time crushing；
When the operating power Pi that continuous n2 times comparison result is the motor detected is greater than or equal to the calibration power
When Ps, the operating power Pi of the motor is reduced to m3*Ps and is completed when time crushing；Wherein, m1 > m2 > m3；N2 > n1；n1
With the positive integer that n2 is greater than 1, m1, m2, m3 are positive number.
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| CN109497852A (en) * | 2018-11-29 | 2019-03-22 | 九阳股份有限公司 | A kind of control method of food processor |
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| CN113133694A (en) * | 2020-01-19 | 2021-07-20 | 广东美的生活电器制造有限公司 | Control method of food processor, food processor and storage medium |
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