CN107280481A - Grind the beans quantity measuring method and coffee machine of beans equipment - Google Patents
Grind the beans quantity measuring method and coffee machine of beans equipment Download PDFInfo
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- CN107280481A CN107280481A CN201710441544.5A CN201710441544A CN107280481A CN 107280481 A CN107280481 A CN 107280481A CN 201710441544 A CN201710441544 A CN 201710441544A CN 107280481 A CN107280481 A CN 107280481A
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- beans
- coffee machine
- current
- mill
- mill beans
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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
- A47J31/00—Apparatus for making beverages
- A47J31/42—Beverage-making apparatus with incorporated grinding or roasting means for coffee
Abstract
The present invention relates to a kind of beans quantity measuring method and coffee machine for grinding beans equipment.Beans quantity measuring method comprises the following steps：Start mill beans motor, carry out first round current detecting, the current value I for once grinding beans motor is detected every the first preset time, A primary current values I is detected altogether；If B primary current values I>I1, then judge coffee machine in there is beans state, if C primary current values I<I2, then judge that coffee machine is in without beans state；If not meeting above-mentioned condition, the second wheel and third round current detecting are carried out, if (P1 P2) (P2 P3)<I3, and P3<I2, then judge to be in without beans state, otherwise in there is beans state.The beans quantity measuring method and coffee machine of mill beans equipment provided in an embodiment of the present invention, it is only necessary to detected to the electric current for grinding beans motor, it is possible to judge whether also have coffee bean in beans bucket, both realized the detection of beans amount, and do not increase the cost of coffee machine.
Description
Technical field
The present invention relates to appliance field, and in particular to the beans quantity measuring method and coffee machine of a kind of mill beans equipment.
Background technology
Now, increasing family is using coffee machine.Traditional coffee machine is typically all using produced
Ground coffee infuse coffee, but the price of finished coffee powder is higher, and cost is higher for the family often drunk coffee.For
This, someone develops the coffee machine with bean-grinding function, and this coffee machine is typically ground using lapping device to coffee bean,
Ground coffee is obtained, is then brewed again., it is necessary to judge whether also have coffee bean in beans bucket, to control during beans are ground
Whether system mill beans motor is stopped.Therefore, some existing coffee machines are provided with beans amount detection machine structure, but these beans amounts are examined
Survey the addition of mechanism so that the structure of coffee machine becomes increasingly complex, and cost also increases much, and the competitiveness in market is inadequate.
The content of the invention
In view of this, the present invention is intended to provide a kind of the beans quantity measuring method and coffee of simple, low cost mill beans equipment
Coffee machine.
In order to realize the purpose of the present invention, on the one hand the embodiment of the present invention provides a kind of beans amount detection side for grinding beans equipment
Method, it comprises the following steps：
Start mill beans motor, carry out first round current detecting, the electricity for once grinding beans motor is detected every the first preset time
Flow valuve I, detects A primary current values I altogether；
The current value I of A detection is judged, if wherein there is B primary current values I>I1, then judge that mill beans equipment is in
There is beans state, if C primary current values I<I2, then judge that mill beans equipment is in without beans state, wherein B, C is preset value and equal
Less than A, I1 is the first pre-set current value, and I2 is the second pre-set current value, and I1>I2；
If not meeting above-mentioned condition, second is carried out successively and takes turns current detecting and third round current detecting, according to first
Take turns to the current detecting result of third round to calculate and obtain first round current average P1, the second wheel current average P2 and third round
Current average P3；
If (P1-P2)-(P2-P3)<I3, and P3<I2, then judge that mill beans equipment is in without beans state, otherwise judge mill
Beans equipment, which is in, beans state, and I3 is the 3rd pre-set current value.
Preferably, if it is determined that mill beans equipment, which is in, beans state, then every the detection of the first preset time, once mill beans are electric
The current value I of machine, when detecting continuous D primary currents value I<I2, then judge that mill beans equipment mill beans are finished, control the mill beans equipment
Stop mill beans.
Preferably, after judging that mill beans equipment mill beans are finished, the mill beans equipment is controlled to stop after the second preset time of delay again
Only grind beans.
Preferably, when judging that mill beans equipment is in without beans state, alarm signal is sent.
Preferably, the second wheel current detecting and third round current detecting detect A primary current values I, each assay intervals institute
State the first preset time.
On the other hand the embodiment of the present invention provides a kind of coffee machine, and it includes controller and mill beans motor, the mill beans electricity
When machine starts, the controller carries out first round current detecting to the mill beans motor, every the detection of the first preset time once
The current value I of beans motor is ground, A primary current values I is detected altogether；The controller to A times detection current value I judge, if
Wherein there is B primary current values I>I1, then judge the coffee machine in there is beans state, if C primary current values I<I2, then judge institute
State coffee machine to be in without beans state, wherein B, C are preset value and respectively less than A, I1 are the first pre-set current value, and I2 is second pre-
If current value, and I1>I2；If not meeting above-mentioned condition, the controller carries out the second wheel current detecting and the 3rd successively
Current detecting is taken turns, is calculated according to the current detecting result of the first round to third round and obtains first round current average P1, the second wheel
Current average P2 and third round current average P3；If (P1-P2)-(P2-P3)<I3, and P3<I2, then judge coffee machine
In the coffee machine without beans state, is otherwise judged in there is beans state, I3 is the 3rd pre-set current value.
Preferably, if it is determined that coffee machine, which is in, beans state, then the controller detects one every the first preset time
The current value I of secondary mill beans motor, when detecting continuous D primary currents value I<I2, then judge that the coffee machine mill beans are finished, the control
Device processed controls the coffee machine to stop mill beans.
Preferably, after judging that the coffee machine mill beans are finished, institute is controlled again after the preset time of delaying time of controller second
State coffee machine and stop mill beans.
Preferably, when judging that coffee machine is in without beans state, the controller sends alarm signal.
Preferably, the second wheel current detecting and third round current detecting detect A primary current value I, every time between detection
Every first preset time.
The beans quantity measuring method and coffee machine of mill beans equipment provided in an embodiment of the present invention, it is only necessary to the electricity to grinding beans motor
Stream is detected, it is possible to is judged whether also have coffee bean in beans bucket, had both been realized the detection of beans amount, and do not increase coffee machine
Cost, the structure on coffee machine also do not influence.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The embodiment of the present invention provides a kind of beans quantity measuring method for grinding beans equipment.The beans quantity measuring method of the mill beans equipment can
So that applied to coffee machine, soy bean milk making machine can also be applied to, other mill beans equipment can also be applied to.The present embodiment is with coffee machine
Exemplified by introduce the beans quantity measuring method of the mill beans equipment.The beans quantity measuring method of the mill beans equipment comprises the following steps：
Step one：Start mill beans motor, carry out first round current detecting, beans electricity is once ground every the detection of the first preset time
The current value I of machine, detects A primary current values I altogether；Specifically, mill beans electric motor starting proceeds by current detecting after 2 seconds, every
0.5 second detection once, altogether detect 6 times, namely in 3 seconds detect No. 6 times mill beans motor current value I, A=6；
Step 2：The current value I of A detection is judged, if wherein there is B primary current values I>I1, then judge mill beans
Equipment, which is in, beans state, if C primary current values I<I2, then judge that mill beans equipment is in without beans state, wherein B, C is pre-
If value and respectively less than A, I1 are the first pre-set current value, I2 is the second pre-set current value, and I1>I2；Specifically, I1 is mill beans
Motor corresponding current value in 60W power, I2 is then mill beans motor corresponding current value in 40W power, and B and C can be with
Equal to 3；
Step 3：If not meeting above-mentioned condition, second is carried out successively and takes turns current detecting and third round current detecting, root
According to the first round to third round current detecting result calculate obtain first round current average P1, second wheel current average P2 and
Third round current average P3；Specifically, the second wheel current detecting is after the first round is detected, third round current detecting then exists
After second wheel current detecting, the second wheel and the detection number of times of third round current detecting and interval time can be with first round electric currents
Detection is identical, can also be different, and P1 is first round current detecting A primary current value I average value, and similarly, P2 and P3 are respectively
The average value of whole current detection values in second wheel and third round current detecting；
Step 4：If (P1-P2)-(P2-P3)<I3, and P3<I2, then judge that mill beans equipment is in without beans state, otherwise
Mill beans equipment is judged in there is beans state, and I3 is the 3rd pre-set current value；Specifically, I3 is equivalent to mill beans power of motor difference
Current difference value during 10W, if (P1-P2)-(P2-P3)>I3, then the current difference value fluctuation of explanation mill beans motor is larger,
Certainly there is coffee bean in interference, this kind of phenomenon explanation mill beans equipment, which is in, beans state, and beans quantity is generally less than 1 glass.
In a preferred embodiment, if it is determined that mill beans equipment, which is in, beans state, mill beans motor continuation mill beans, and every
The current value I of beans motor is once ground in the detection of first preset time, when detecting continuous D primary currents value I<I2, then judge that mill beans are set
Standby mill beans are finished, and control mill beans equipment stops mill beans.Specifically, the first preset time is 0.5 second, D=5, namely when judgement
Mill beans equipment is in when having beans state, and mill beans equipment is transferred to lasting detection datamation, and beans electricity is once ground every collection in 0.5 second
The current value I of machine, is less than I2 until continuous 5 primary current occur in detection data, illustrates that now mill beans completely have been finished.Further
Preferably, after judging that mill beans equipment mill beans are finished, mill beans equipment is controlled to stop mill beans again after the second preset time of delay.Second
Preset time can be 5 seconds, namely after mill beans equipment mill beans are finished, mill beans motor stops mill beans and worked after being delayed 5 seconds,
Grind other work that beans equipment carries out next step.
In a preferred embodiment, when judging that mill beans equipment is in without beans state, alarm signal is sent.Specifically, when sentencing
Break when no beans state, stop the follow-up useless work of mill beans motor, and sounding alarm prompting user at once.Certainly, at other
In embodiment, it can also be alarmed in the form of alarm lamp.
In a preferred embodiment, the second wheel current detecting and third round current detecting detect A primary current value I, every time inspection
The first preset time of interval is surveyed, A can be equal to 6, and the first preset time can be 0.5 second, the second wheel current average P2 and the
Three-wheel current average P3 is 6 detection current value I average value.
The embodiment of the present invention also provides a kind of coffee machine, and it includes controller and mill beans motor.Certainly, the coffee machine may be used also
So that including beans bucket, cup for infusing and steeping, water tank, hot water component etc., here is omitted.When grinding beans electric motor starting, controller is to mill beans electricity
Machine carries out first round current detecting, and the current value I for once grinding beans motor is detected every the first preset time, A primary currents are detected altogether
Value I；Controller is judged the current value I of A detection, if wherein there is B primary current values I>I1, then judge that coffee machine is in
There is beans state, if C primary current values I<I2, then judge that coffee machine is in without beans state, wherein B, C is preset value and small
In A, I1 is the first pre-set current value, and I2 is the second pre-set current value, and I1>I2；If not meeting above-mentioned condition, controller
Second is carried out successively and takes turns current detecting and third round current detecting, is calculated according to the current detecting result of the first round to third round
To first round current average P1, the second wheel current average P2 and third round current average P3；If (P1-P2)-(P2-
P3)<I3, and P3<I2, then judge that coffee machine is in without beans state, otherwise judges coffee machine in there is beans state, I3 is the 3rd pre-
If current value.The method specifically detected may be referred to the beans quantity measuring method of above-mentioned mill beans equipment, and here is omitted.
In a preferred embodiment, if it is determined that coffee machine, which is in, beans state, controller control mill beans motor continues to grind beans,
And the current value I for once grinding beans motor is detected every the first preset time, when detecting continuous D primary currents value I<I2, then sentence
Disconnected coffee machine mill beans are finished, and control coffee machine stops mill beans.Specifically, the first preset time is 0.5 second, D=5, namely is worked as
Coffee machine is judged in when having beans state, coffee machine is transferred to lasting detection datamation, every collection in 0.5 second, once mill beans were electric
The current value I of machine, is less than I2 until continuous 5 primary current occur in detection data, illustrates that now mill beans completely have been finished.Further
Preferably, after judging that coffee machine mill beans are finished, coffee machine is controlled to stop mill beans again after the second preset time of delay.Second presets
Time can be 5 seconds, namely after coffee machine mill beans are finished, controller, which can be delayed 5 seconds, controls mill beans motor to stop mill beans work
Make, coffee machine carries out other work of next step.
In a preferred embodiment, when judging that coffee machine is in without beans state, controller sends alarm signal.Specifically,
Alarm lamp or buzzer can be provided with coffee machine, when judging no beans state, controller stops grinding beans motor at once
Follow-up useless work, and send alarm signal to point out user by alarm lamp or buzzer.
In a preferred embodiment, the second wheel current detecting and third round current detecting detect A primary current value I, every time inspection
The first preset time of interval is surveyed, A can be equal to 6, and the first preset time can be 0.5 second, the second wheel current average P2 and the
Three-wheel current average P3 is 6 detection current value I average value.
The beans quantity measuring method and coffee machine of mill beans equipment provided in an embodiment of the present invention, it is only necessary to the electricity to grinding beans motor
Stream is detected, it is possible to is judged whether also have coffee bean in beans bucket, had both been realized the detection of beans amount, and do not increase coffee machine
Cost, the structure on coffee machine also do not influence.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of beans quantity measuring method for grinding beans equipment, it is characterised in that comprise the following steps：
Start mill beans motor, carry out first round current detecting, the current value for once grinding beans motor is detected every the first preset time
I, detects A primary current values I altogether；
The current value I of A detection is judged, if wherein there is B primary current values I>I1, then judge to grind beans equipment and be in have beans
State, if C primary current values I<I2, then judge that mill beans equipment is in without beans state, wherein B, C is preset value and be respectively less than
A, I1 are the first pre-set current value, and I2 is the second pre-set current value, and I1>I2；
If not meeting above-mentioned condition, second is carried out successively and takes turns current detecting and third round current detecting, according to the first round extremely
The current detecting result of third round, which is calculated, obtains first round current average P1, the second wheel current average P2 and third round electric current
Average value P 3；
If (P1-P2)-(P2-P3)<I3, and P3<I2, then judge that mill beans equipment is in without beans state, otherwise judge that mill beans are set
Standby be in has beans state, and I3 is the 3rd pre-set current value.
2. the beans quantity measuring method of mill beans equipment according to claim 1, it is characterised in that if it is determined that at mill beans equipment
In there is beans state, then detected every the first preset time and once grind the current value I of beans motor, when detecting continuous D primary currents value I
<I2, then judge that mill beans equipment mill beans are finished, control the mill beans equipment to stop mill beans.
3. the beans quantity measuring method of mill beans equipment according to claim 2, it is characterised in that judge that mill beans equipment mill beans are complete
The mill beans equipment is controlled to stop mill beans after Bi Hou, the second preset time of delay again.
4. the beans quantity measuring method of mill beans equipment according to claim 1, it is characterised in that judge that mill beans equipment is in nothing
During beans state, alarm signal is sent.
5. the beans quantity measuring method of mill beans equipment according to claim 1, it is characterised in that the second wheel current detecting and the
Three-wheel current detecting detects A primary current value I, the first preset time described in each assay intervals.
6. a kind of coffee machine, it includes controller and mill beans motor, it is characterised in that during the mill beans electric motor starting, the control
Device processed carries out first round current detecting to the mill beans motor, and the current value for once grinding beans motor is detected every the first preset time
I, detects A primary current values I altogether；The controller is judged the current value I of A detection, if wherein there is B primary current values I>
I1, then judge the coffee machine in there is beans state, if C primary current values I<I2, then judge that the coffee machine is in without beans
State, wherein B, C are that preset value and respectively less than A, I1 are the first pre-set current value, and I2 is the second pre-set current value, and I1>
I2；If not meeting above-mentioned condition, the controller carries out the second wheel current detecting and third round current detecting successively, according to
The first round to the current detecting result of third round, which is calculated, obtains first round current average P1, the second wheel current average P2 and the
Three-wheel current average P3；If (P1-P2)-(P2-P3)<I3, and P3<I2, then judge that coffee machine is in without beans state, otherwise
The coffee machine is judged in there is beans state, and I3 is the 3rd pre-set current value.
7. coffee machine according to claim 6, it is characterised in that if it is determined that coffee machine, which is in, beans state, then it is described
Controller detects the current value I for once grinding beans motor every the first preset time, when detecting continuous D primary currents value I<I2, then
Judge that the coffee machine mill beans are finished, the controller controls the coffee machine to stop mill beans.
8. coffee machine according to claim 7, it is characterised in that after judging that the coffee machine mill beans are finished, the control
The coffee machine is controlled to stop mill beans again after device the second preset time of delay.
9. coffee machine according to claim 6, it is characterised in that when judging that coffee machine is in without beans state, the control
Device sends alarm signal.
10. coffee machine according to claim 6, it is characterised in that the second wheel current detecting and the inspection of third round electric current
Survey and detect A primary current value I, the first preset time described in each assay intervals.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441544.5A CN107280481B (en) | 2017-06-13 | 2017-06-13 | Grind the beans quantity measuring method and coffee machine of beans equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441544.5A CN107280481B (en) | 2017-06-13 | 2017-06-13 | Grind the beans quantity measuring method and coffee machine of beans equipment |
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| CN107280481A true CN107280481A (en) | 2017-10-24 |
| CN107280481B CN107280481B (en) | 2019-06-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261667A (en) * | 2019-05-15 | 2019-09-20 | 宁波拓邦智能控制有限公司 | Bean milling machine lacks beans detection method, system, bean milling machine and motor power detection circuit |
| CN110507178A (en) * | 2018-05-21 | 2019-11-29 | 佛山市顺德区美的电热电器制造有限公司 | Cooking equipment, cooking control method, culinary art control device and storage medium |
| CN114568958A (en) * | 2022-02-24 | 2022-06-03 | 深圳拓邦股份有限公司 | Coffee grinder and state detection method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05300837A (en) * | 1992-04-28 | 1993-11-16 | Matsushita Electric Ind Co Ltd | Coffee extractor |
| JPH05317185A (en) * | 1992-05-19 | 1993-12-03 | Nippon Philips Kk | Coffee maker with mill |
| CN1846585A (en) * | 2005-03-29 | 2006-10-18 | 萨科Ipr有限公司 | Process to detect the lack of coffee beans in a grinder of a coffee machine and coffee machine carrying out the process |
| CN105705069A (en) * | 2013-11-12 | 2016-06-22 | 皇家飞利浦有限公司 | Coffee grinder and coffee grinding method |
| US20160256001A1 (en) * | 2015-03-06 | 2016-09-08 | Helen Of Troy Limited | No-bean detection for coffee bean grinder |
-
2017
- 2017-06-13 CN CN201710441544.5A patent/CN107280481B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05300837A (en) * | 1992-04-28 | 1993-11-16 | Matsushita Electric Ind Co Ltd | Coffee extractor |
| JPH05317185A (en) * | 1992-05-19 | 1993-12-03 | Nippon Philips Kk | Coffee maker with mill |
| CN1846585A (en) * | 2005-03-29 | 2006-10-18 | 萨科Ipr有限公司 | Process to detect the lack of coffee beans in a grinder of a coffee machine and coffee machine carrying out the process |
| CN105705069A (en) * | 2013-11-12 | 2016-06-22 | 皇家飞利浦有限公司 | Coffee grinder and coffee grinding method |
| US20160256001A1 (en) * | 2015-03-06 | 2016-09-08 | Helen Of Troy Limited | No-bean detection for coffee bean grinder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110507178A (en) * | 2018-05-21 | 2019-11-29 | 佛山市顺德区美的电热电器制造有限公司 | Cooking equipment, cooking control method, culinary art control device and storage medium |
| CN110261667A (en) * | 2019-05-15 | 2019-09-20 | 宁波拓邦智能控制有限公司 | Bean milling machine lacks beans detection method, system, bean milling machine and motor power detection circuit |
| CN110261667B (en) * | 2019-05-15 | 2022-08-23 | 宁波拓邦智能控制有限公司 | Bean grinding machine lack detection method and system, bean grinding machine and motor power detection circuit |
| CN114568958A (en) * | 2022-02-24 | 2022-06-03 | 深圳拓邦股份有限公司 | Coffee grinder and state detection method thereof |
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