CN205029584U - Food processor and be used for food processor's motor speed control device - Google Patents
Food processor and be used for food processor's motor speed control device Download PDFInfo
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- CN205029584U CN205029584U CN201520817564.4U CN201520817564U CN205029584U CN 205029584 U CN205029584 U CN 205029584U CN 201520817564 U CN201520817564 U CN 201520817564U CN 205029584 U CN205029584 U CN 205029584U
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Abstract
The utility model discloses a food processor and be used for food processor's motor speed control device, the device includes: first input end and second input, with the motor that first input end and second input link to each other, the drive the drive module of motor, load detection module, load detection module is used for detecting food processor's the grade of load, rotational speed control module, rotational speed control module with load detection module with drive module links to each other, is used for the basis the grade of load is right the rotational speed of motor is controlled, the power modul, power module is used for doing the power supply of rotational speed control module. From this, can make motor rotation number reduce when the grade of load is lower, to avoid electrical lasts high -speed operation to effectively reduce the noise of motor operation in -process, promote user's experience.
Description
Technical field
The utility model relates to electric device technical field, particularly a kind of motor speed control device for food processor and a kind of food processor.
Background technology
The electric devices such as relevant food cooking machine, often need motor to run up and smash food materials with this, the nutriment in food is fully discharged, and usual motor speed reaches as high as more than 20000rpm.
In the related, food cooking machine generally has multiple menu function, the corresponding one group of parameter such as rotating speed, time of each menu function, when user selects any one menu function, the parameters such as rotating speed corresponding for this menu function, time operate by motor, until complete this menu function or the stopping of manual control motor.But its shortcoming existed is that motor continues to run up, and will inevitably occur larger noise, affects the experience of user.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is the motor speed control device for food processor proposing a kind of noise that can effectively reduce in motor operation course.
Another object of the present utility model is to propose a kind of food processor.
For achieving the above object, the utility model proposes a kind of motor speed control device for food processor on the one hand, comprising: first input end and the second input; The motor be connected with the second input with described first input end; Drive the driver module of described motor; Load detecting module, described load detecting module is for detecting the grade of load of described food processor; Rotational speed control module, described rotational speed control module is connected with described driver module with described load detecting module, for controlling according to the rotating speed of the described grade of load to described motor; Power module, described power module is used for powering for described rotational speed control module.
According to the motor speed control device for food processor that the utility model proposes, detected the grade of load of food processor by load detecting module, then rotational speed control module controls according to the rotating speed of the grade of load to motor.Thus, this device can make motor speed reduce when the grade of load is lower, avoids motor to continue to run up, thus effectively reduces the noise in motor operation course, promotes the experience of user.
Particularly, described load detecting module specifically comprises: current detecting submodule, for detect flow through described motor electric current to obtain motor current value; Grade of load determination submodule, for determining the described grade of load according to described motor current value.
Particularly, described rotational speed control module specifically for, the described grade of load is judged; If judge that the described grade of load is as presetting the grade of load, then reduce the rotating speed of described motor.
Particularly, described driver module drives described motor by the controllable silicon of connecting with described motor, described device also comprises: zero cross detection circuit, described zero cross detection circuit is connected with described second input with described first input end, for detecting the voltage over zero of the voltage between described first input end and the second input, wherein, described rotational speed control module also opens delay time for obtaining described silicon controlled according to the described grade of load, and controlling described controllable silicon, after described voltage over zero, open delay time described in time delay open-minded.
Particularly, described rotational speed control module specifically for, the described grade of load is judged; If judge that the described grade of load is as presetting the grade of load, then increase and describedly open delay time.
For achieving the above object, the utility model proposes a kind of food processor on the other hand, comprises the described motor speed control device for food processor.
According to the food processor that the utility model proposes, by the above-mentioned motor speed control device for food processor, motor speed can be reduced when the grade of load is lower, avoid motor to continue to run up, thus the noise effectively reduced in motor operation course, promote the experience of user.
Accompanying drawing explanation
Fig. 1 is the block diagram of the motor speed control device for food processor according to the utility model embodiment;
Fig. 2 is the block diagram of the motor speed control device for food processor according to the utility model embodiment;
Fig. 3 is the block diagram of the motor speed control device for food processor according to another embodiment of the utility model;
Fig. 4 is the flow chart of the motor speed control method for food processor according to the utility model embodiment.
Reference numeral:
First input end AC-N and the second input AC-L, motor 10, driver module 20, load detecting module 30 and rotational speed control module 40;
Current detecting submodule 301 and grade of load determination submodule 302;
Controllable silicon 50, zero cross detection circuit 60 and power module 70.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the accompanying drawings motor speed control device for food processor and the motor speed control device for food processor of the proposition of the utility model embodiment are described.
Fig. 1 is the block diagram of the motor speed control device for food processor according to the utility model embodiment.As shown in Figure 1, the motor speed control device for food processor of the utility model embodiment comprises: first input end AC-N and the second input AC-L, motor 10, driver module 20, load detecting module 30, rotational speed control module 40 and power module 70.
Wherein, motor 10 is connected with the second input AC-L with first input end AC-N, namely say that one end of motor 10 is connected with first input end AC-N, the other end of motor 10 is connected with the second input AC-L, and external communication electricity is that motor 10 is powered by first input end AC-N and the second input AC-L.
Driver module 20 is for drive motors 10, and that is, the exportable drive singal of driver module 20 operates to make motor 10 to motor 10 under the driving of drive singal.
Load detecting module 30 is for detecting the grade of load of food processor; Rotational speed control module 40 is connected with driver module 20 with load detecting module 30, and rotational speed control module 40 is for controlling according to the rotating speed of the grade of load to motor.That is, rotational speed control module 40 is by being connected to obtain the grade of load with load detecting module 30, and rotational speed control module 40 is by being connected to be controlled by the rotating speed of driver module 20 pairs of motors with driver module 20.
Power module 70 is for powering for rotational speed control module 40, particularly, one end of power module 70 can be connected with first input end AC-N, the other end of power module 70 can be connected with rotational speed control module 40, the alternating current that outside inputs can be converted to direct current by power module 70, thinks that rotational speed control module 40 is powered.
It should be noted that, rotational speed control module 40 can prestore the grade of load-tachometer, after rotational speed control module 40 gets the grade of load, can contrast the grade of load-tachometer to obtain rotating speed corresponding to this grade of load, then rotational speed control module 40 controls motor 10 according to the rotating speed of correspondence.
Should be understood that, the grade of load can become positive correlation with rotating speed, and namely the larger then rotating speed of the grade of load is higher, otherwise the less then rotating speed of the grade of load is lower.
For example, after the menu function entry into service that food processor is selected according to user, in the starting stage, because in container, food is larger, motor rotation resistance is large, and motor load is comparatively large, so motor 10 first will run up to be pulverized by food according to the rotating speed that this menu function is corresponding.Afterwards, along with the running of food processor, in container, food is pulverized gradually, motor load progressively reduces, now by the grade of load that load detecting module 30 detects, when detecting that load equivalence reduces, rotational speed control module 40 controls driver module 20 to be reduced to make the rotating speed of motor 10, thus realizes the object reducing noise.
And for example, after the menu function entry into service that food processor is selected according to user, namely the grade of load is detected by load detecting module 30, rotational speed control module 40 obtains corresponding rotating speed according to the grade of load now, and control motor 10 according to this rotating speed, now because food in container is comparatively large, so motor rotation resistance is large, motor load is comparatively large, and the rotating speed of motor 10 is higher.Afterwards, along with the running of food processor, in container, food is pulverized gradually, motor load progressively reduces, now load detecting module 30 can detect that the grade of load declines, when detecting that load equivalence reduces, rotational speed control module 40 controls driver module 20 to make motor 10 according to comparatively slow-speed of revolution running, thus realizes the object reducing noise.
According to the utility model specific embodiment, as shown in Figure 2, load detecting module 30 specifically comprises: current detecting submodule 301 and grade of load determination submodule 302.
Wherein, current detecting submodule 301 for detect flow through motor 10 electric current to obtain motor current value; Grade of load determination submodule 302 is for according to the motor current value determination grade of load.
It should be noted that, load detecting module 30 can according to the electric current determination grade of load flowing through motor 10, and motor current value is larger, and the grade of load is larger, otherwise motor current value is less, and the grade of load is less.
Also it should be noted that, grade of load determination submodule 302 can prestore current of electric-grade of load table.After grade of load determination submodule 302 gets motor current value, current of electric-grade of load table can be contrasted to obtain the grade of load of this correspondence, then the grade of load of correspondence is sent to rotational speed control module 40 by grade of load determination submodule 302, controls motor 10 to make rotational speed control module 40 according to the grade of load.
Specifically, current detecting submodule 301 detects the electric current flowing through motor 10 by sampling resistor, Hall current sensor etc.In the starting stage of food processor running, in container, food is comparatively large, and motor rotation resistance is large, and the motor current value that current detecting submodule 301 feeds back is larger.Along with the running of food processor, in container, food is pulverized gradually, and motor rotation resistance reduces, and the motor current value that current detecting submodule 301 feeds back reduces, and the corresponding grade of load also can reduce.
Thus, grade of load judgement is realized by detecting the electric current flowing through motor 10.
According to a specific embodiment of the present utility model, rotational speed control module 40 specifically for judging the grade of load, if judge that the grade of load is as presetting the grade of load, then reduce the rotating speed of motor 10.
For example, the grade of load can be divided into heavy load grade and the little grade of load, presetting load level setting is the little grade of load.So, in the starting stage of food processor running, rotational speed control module 40 can control motor 10 and run with the first rotating speed, now because food in container is larger, then motor rotation resistance is large, and motor load is large, and the motor current value that current detecting submodule 301 feeds back is larger, the grade of load that grade of load determination submodule 302 is determined is heavy load grade, and motor 10 still runs with the first rotating speed.Along with food in container is pulverized gradually, motor load reduces gradually, the motor current value that current detecting submodule 301 feeds back reduces gradually, when the grade of load that grade of load determination submodule 302 is determined is the little grade of load, rotational speed control module 40 can control motor 10 with the second rotation speed operation, second rotating speed is less than the first rotating speed, thus realizes the object reducing noise.
According to another embodiment of the present utility model, as shown in Figure 3, driver module 20 can controllable silicon 50 drive motors 10 of youngster by connecting with motor, and motor speed control device also comprises: zero cross detection circuit 60.
Wherein, zero cross detection circuit 60 is connected with the second input AC-L with first input end AC-N, for detecting the voltage over zero of the voltage between first input end AC-N and the second input AC-L, wherein, rotational speed control module 40 also opens delay time for what obtain controllable silicon 50 according to the grade of load, and controlling controllable silicon 50 time delay after voltage over zero, to open delay time open-minded.
It should be noted that, rotational speed control module 40 can prestore the grade of load-delay time table, after rotational speed control module 40 gets the grade of load, the grade of load-delay time table can be contrasted to obtain delay time corresponding to this grade of load, then rotational speed control module 40 controls driver module 20, with make controllable silicon 50 time delay after voltage over zero corresponding to open delay time open-minded, and then reduce motor speed.
Should be understood that, the grade of load can become negative correlativing relation with rotating speed, and namely the grade of load is larger, opens delay time shorter, otherwise the grade of load is less, opens delay time longer.
Further, rotational speed control module 40 is specifically for judging the grade of load, if judge that the grade of load is as presetting the grade of load, then delay time is opened in increase.
That is, by change controllable silicon 50 open delay time to adjust the rotating speed of motor 10.Suppose the grade of load to be divided into heavy load grade and the little grade of load, presetting load level setting is the little grade of load.So, in the starting stage of food processor running, rotational speed control module 40 can after voltage over zero time delay first Preset Time control controllable silicon 50 open-minded, run according to the first rotating speed to control motor 10, now because food in container is comparatively large, then motor rotation resistance is large, motor load is large, the motor current value that current detecting submodule 301 feeds back is comparatively large, and the grade of load that grade of load determination submodule 302 is determined is heavy load grade, controllable silicon 50 to open delay time constant.Along with food in container is pulverized gradually, motor load reduces gradually, the motor current value that current detecting submodule 301 feeds back reduces gradually, when the grade of load that grade of load determination submodule 302 is determined is the little grade of load, rotational speed control module 40 can after voltage over zero time delay second Preset Time control controllable silicon 50 open-minded, to control motor 10 according to the second rotation speed operation, the second Preset Time is greater than the first Preset Time, thus realizes the object reducing noise.
In sum, according to the motor speed control device for food processor that the utility model embodiment proposes, detected the grade of load of food processor by load detecting module, then rotational speed control module controls according to the rotating speed of the grade of load to motor.Thus, this device can make motor speed reduce when the grade of load is lower, avoids motor to continue to run up, thus effectively reduces the noise in motor operation course, promotes the experience of user.
The utility model embodiment also proposed a kind of food processor, comprises the motor speed control device for food processor of above-described embodiment.
According to the food processor that the utility model embodiment proposes, by the above-mentioned motor speed control device for food processor, motor speed can be reduced when the grade of load is lower, motor is avoided to continue to run up, thus the noise effectively reduced in motor operation course, promote the experience of user.
The utility model embodiment also been proposed a kind of motor speed control method for food processor.
Fig. 4 is the flow chart of the motor speed control method according to the utility model embodiment.Motor speed control device for food processor comprises: first input end and the second input, the motor be connected with the second input with first input end, and the driver module of drive motors.As shown in Figure 4, the motor speed control method for food processor comprises the following steps:
S1: the grade of load detecting food processor.
According to a specific embodiment of the present utility model, the grade of load and the step S1 that detect food processor specifically comprise: detection flows through the electric current of motor to obtain motor current value; According to the motor current value determination grade of load.
S2: control according to the rotating speed of the grade of load to motor.
According to a specific embodiment of the present utility model, according to the grade of load control is carried out to the rotating speed of motor and step S2 specifically comprises: the grade of load is judged; If judge that the grade of load is as presetting the grade of load, then reduce the rotating speed of motor.
According to another embodiment of the present utility model, by the controllable silicon drive motors of connecting with motor, according to the grade of load control is carried out to the rotating speed of motor and step S2 specifically comprises: the voltage over zero detecting the voltage between first input end and the second input; Obtain silicon controlled according to the grade of load and open delay time, and controlling controllable silicon time delay after voltage over zero, to open delay time open-minded.
More specifically, obtain silicon controlled according to the grade of load and open delay time, specifically comprise, the grade of load is judged; If judge that the grade of load is as presetting the grade of load, then increase and open delay time.
According to the motor speed control method for food processor that the utility model embodiment proposes, detect the grade of load of food processor, then control according to the rotating speed of the grade of load to motor.Thus, the method can make motor speed reduce when the grade of load is lower, avoids motor to continue to run up, thus effectively reduces the noise in motor operation course, promotes the experience of user.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (6)
1. for a motor speed control device for food processor, it is characterized in that, comprising:
First input end and the second input;
The motor be connected with the second input with described first input end;
Drive the driver module of described motor;
Load detecting module, described load detecting module is for detecting the grade of load of described food processor;
Rotational speed control module, described rotational speed control module is connected with described driver module with described load detecting module, for controlling according to the rotating speed of the described grade of load to described motor; And
Power module, described power module is used for powering for described rotational speed control module.
2., as claimed in claim 1 for the motor speed control device of food processor, it is characterized in that, described load detecting module specifically comprises:
Current detecting submodule, for detect flow through described motor electric current to obtain motor current value; And
Grade of load determination submodule, for determining the described grade of load according to described motor current value.
3. as claimed in claim 1 for the motor speed control device of food processor, described rotational speed control module specifically for, the described grade of load is judged, if judge that the described grade of load is for the default grade of load, then reduce the rotating speed of described motor.
4., as claimed in claim 1 for the motor speed control device of food processor, it is characterized in that, described driver module drives described motor by the controllable silicon of connecting with described motor, and described device also comprises:
Zero cross detection circuit, described zero cross detection circuit is connected with described second input with described first input end, for detecting the voltage over zero of the voltage between described first input end and the second input, wherein, described rotational speed control module also opens delay time for obtaining described silicon controlled according to the described grade of load, and controlling described controllable silicon, after described voltage over zero, open delay time described in time delay open-minded.
5. as claimed in claim 4 for the motor speed control device of food processor, it is characterized in that, described rotational speed control module specifically for, the described grade of load is judged, if judge that the described grade of load is as presetting the grade of load, then increase and describedly open delay time.
6. a food processor, is characterized in that, comprises the motor speed control device of the food processor according to any one of claim 1-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520817564.4U CN205029584U (en) | 2015-10-19 | 2015-10-19 | Food processor and be used for food processor's motor speed control device |
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| CN201520817564.4U CN205029584U (en) | 2015-10-19 | 2015-10-19 | Food processor and be used for food processor's motor speed control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107581934A (en) * | 2016-07-07 | 2018-01-16 | 广东美的生活电器制造有限公司 | The control method and device of food cooking machine |
| CN109150036A (en) * | 2017-06-26 | 2019-01-04 | 广东美的生活电器制造有限公司 | Cooking machine and its method for noise reduction control |
| WO2019024190A1 (en) * | 2017-08-04 | 2019-02-07 | 广东美的生活电器制造有限公司 | Food processor and cooking control method and apparatus thereof |
| CN111278337A (en) * | 2017-10-02 | 2020-06-12 | 光达家电用品公司 | Intelligent stirrer |
| TWI722594B (en) * | 2019-10-08 | 2021-03-21 | 東元電機股份有限公司 | System for determining loading level of refrigeration appliance |
| CN114642371A (en) * | 2020-12-18 | 2022-06-21 | 广东美的生活电器制造有限公司 | Control method of household appliance, household appliance and computer readable storage medium |
-
2015
- 2015-10-19 CN CN201520817564.4U patent/CN205029584U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107581934A (en) * | 2016-07-07 | 2018-01-16 | 广东美的生活电器制造有限公司 | The control method and device of food cooking machine |
| CN109150036A (en) * | 2017-06-26 | 2019-01-04 | 广东美的生活电器制造有限公司 | Cooking machine and its method for noise reduction control |
| CN109150036B (en) * | 2017-06-26 | 2020-12-22 | 广东美的生活电器制造有限公司 | Food processor and noise reduction control method thereof |
| WO2019024190A1 (en) * | 2017-08-04 | 2019-02-07 | 广东美的生活电器制造有限公司 | Food processor and cooking control method and apparatus thereof |
| CN111278337A (en) * | 2017-10-02 | 2020-06-12 | 光达家电用品公司 | Intelligent stirrer |
| TWI722594B (en) * | 2019-10-08 | 2021-03-21 | 東元電機股份有限公司 | System for determining loading level of refrigeration appliance |
| CN114642371A (en) * | 2020-12-18 | 2022-06-21 | 广东美的生活电器制造有限公司 | Control method of household appliance, household appliance and computer readable storage medium |
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