CN107951362B - Stirring equipment and control method thereof - Google Patents
Stirring equipment and control method thereof Download PDFInfo
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- CN107951362B CN107951362B CN201711267036.6A CN201711267036A CN107951362B CN 107951362 B CN107951362 B CN 107951362B CN 201711267036 A CN201711267036 A CN 201711267036A CN 107951362 B CN107951362 B CN 107951362B
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- motor
- torsion
- main chip
- stirring
- direction switching
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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
- A47J19/00—Household machines for straining foodstuffs; Household implements for mashing or straining foodstuffs
- A47J19/02—Citrus fruit squeezers; Other fruit juice extracting devices
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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
- A47J19/00—Household machines for straining foodstuffs; Household implements for mashing or straining foodstuffs
- A47J19/06—Juice presses for vegetables
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
Abstract
The embodiment of the invention discloses stirring equipment and a control method of the stirring equipment. This stirring class equipment includes: motor, motor drive circuit, main chip and stirring component still include: a torsion detecting unit, wherein: the torsion detection unit is connected with the stirring element and/or the transmission mechanism of the motor, is used for detecting a first torsion of the stirring element and/or a second torsion of the transmission mechanism, and feeds the first torsion back to the main chip; the main chip is connected with the torsion detection unit and used for determining the working state of the stirring element according to the first torsion and/or the second torsion and generating a first rotating direction switching instruction according to the working state; and the motor driving circuit is connected with the main chip and the motor and used for driving the motor to rotate according to the first indication direction according to the first rotation direction switching instruction. The embodiment of the invention realizes the reliability and timeliness of the switching of the rotation direction of the motor, realizes the automatic operation of the stirring equipment and further ensures the comfort of the user.
Description
Technical Field
The embodiment of the invention relates to a control technology, in particular to stirring equipment and a control method of the stirring equipment.
Background
The juice machine is a stirring type device for squeezing fruits or vegetables to obtain juice, and specifically comprises a motor, a motor driving circuit, a main chip, a stirring element, a barrel, a forward and reverse rotation switch and other structures. Wherein the stirring element may be a screw propulsion structure. The motor is used for driving the spiral propelling structure to squeeze food materials. The spiral propelling structure is used for squeezing fruits and vegetables to achieve juicing. The squeezing chamber is used for storing squeezed juice and residues. The motor rotates clockwise to rotate forwards and anticlockwise to rotate backwards. The positive and negative rotation switch is used for generating a signal for controlling the positive rotation or the negative rotation of the motor according to the adjustment of a user and feeding the signal back to the main chip, the main chip generates a positive rotation instruction or a negative rotation instruction according to the signal and sends the positive rotation instruction or the negative rotation instruction to the motor driving circuit, and the motor driving circuit is used for driving the motor to rotate positively or negatively. The forward rotation of the motor drives the forward rotation of the spiral propelling structure, so that the food materials can be squeezed; when the screw propulsion structure is stuck by harder food materials or residues, the motor is required to drive the screw propulsion structure to rotate reversely, so that harder food or residues are unloaded.
Most of the existing juice machines adopt a mechanical control mode, and a user needs to manually adjust a forward and reverse rotation switch to control forward rotation and reverse rotation of a motor. When harder food materials are squeezed, the squeezing torsion in the squeezing chamber is too large, so that the blockage protection is caused, namely when the spiral propelling structure is clamped, the motor stops running. At this time, the user is required to manually adjust the forward and reverse rotation switch to reverse rotation so as to unload the residue in the barrel, and then adjust the forward and reverse rotation switch to forward rotation so as to continue the squeezing operation. After all food materials are squeezed, the user is required to adjust the switch to the stop gear, a large amount of operation burden is added to the user invisibly, and user experience is poor.
Disclosure of Invention
The embodiment of the invention provides stirring equipment and a control method of the stirring equipment, and solves the problems that the conventional juice machine needs a manual adjustment switch, the operation is complicated, and the user experience is poor.
In a first aspect, an embodiment of the present invention provides a stirring apparatus, including: motor, motor drive circuit, main chip and stirring component, this equipment still includes: a torsion detecting unit, wherein:
the torsion detection unit is connected with the stirring element and/or the transmission mechanism of the motor, is used for detecting a first torsion of the stirring element and/or a second torsion of the transmission mechanism, and feeds the first torsion back to the main chip;
the main chip is connected with the torsion detection unit and used for determining the working state of the stirring element according to the first torsion and/or the second torsion and generating a first rotating direction switching instruction according to the working state;
and the motor driving circuit is connected with the main chip and the motor and used for driving the motor to rotate according to a first indication direction according to the first rotation direction switching instruction.
Further, the device also comprises a current detection circuit, a current detection circuit and a control circuit, wherein the current detection circuit is used for detecting the current value of the motor and feeding the current value back to the main chip;
the main chip is specifically configured to determine a working state of the stirring element according to the first torsion and/or the second torsion, determine an overload state of the motor according to the current value, and generate a first rotation direction switching instruction according to the overload state and the working state.
Furthermore, the equipment also comprises a rotating speed detection unit which is connected with the motor and used for detecting the rotating speed of the motor and feeding the rotating speed back to the main chip;
the main chip is connected with the rotating speed detection unit, and is also used for determining the running state of the motor according to the rotating speed of the motor after generating a first rotating direction switching instruction according to the overload state and the working state, and generating a second rotating direction switching instruction according to the running state;
and the motor driving circuit is further used for driving the motor to rotate according to a second indication direction according to the second rotation direction switching instruction.
Further, the main chip is specifically configured to:
determining preset time corresponding to preset running turns of the motor according to the rotating speed of the motor;
and generating a second rotating direction switching instruction after the motor rotates according to the first indicating direction for the preset time.
Further, the main chip is specifically further configured to determine a working state of the stirring element according to the first torsion and/or the second torsion, determine an idle state of the motor according to the current value, and generate a rotation stop instruction according to the idle state and the working state;
and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
Furthermore, the device also comprises a temperature detection unit which is connected with the motor and used for detecting the temperature of the motor and feeding the temperature back to the main chip;
the main chip is connected with the temperature detection unit and is also used for generating a rotation stopping instruction when the temperature of the motor exceeds a preset threshold value;
and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
In a second aspect, an embodiment of the present invention further provides a method for controlling a stirring apparatus, where the stirring apparatus includes: motor, motor drive circuit, main chip and stirring component, the method includes:
detecting a first torsion of the stirring element and/or a second torsion of a transmission mechanism of the motor through a torsion detection unit, and feeding back the first torsion to the main chip;
determining the working state of the stirring element according to the first torsion and/or the second torsion through the main chip, and generating a first rotating direction switching instruction according to the working state;
and driving the motor to rotate according to a first indication direction through the motor driving circuit according to the first rotation direction switching instruction.
Further, the method further comprises: detecting the current value of the motor through a current detection circuit, and feeding the current value back to a main chip;
and determining the working state of the stirring element according to the first torsion and/or the second torsion through the main chip, determining the overload state of the motor according to the current value, and generating a first rotating direction switching instruction according to the overload state and the working state.
Further, the method further comprises: detecting the rotating speed of the motor through a rotating speed detection unit, and feeding the rotating speed back to the main chip;
through the main chip, after a first rotation direction switching instruction is generated according to an overload state and a working state, the running state of the motor is determined according to the rotating speed of the motor, and a second rotation direction switching instruction is generated according to the running state;
and driving the motor to rotate according to a second indication direction through the motor driving circuit according to the second rotation direction switching instruction.
Further, the determining the operation state of the motor according to the rotation speed of the motor and generating a second rotation direction switching instruction according to the operation state includes:
determining preset time corresponding to preset running turns of the motor according to the rotating speed of the motor;
and generating a second rotating direction switching instruction after the motor rotates according to the first indicating direction for the preset time.
According to the embodiment of the invention, the first torsion of the stirring element and/or the second torsion of the motor transmission mechanism are/is detected by the torsion detection unit, and the main chip determines the working state of the stirring element according to the first torsion and/or the second torsion, so that the real-time monitoring of the working state of the stirring element can be ensured, and the accuracy of determining the working state of the stirring element is improved; the rotation direction switching instruction is generated by the main chip in real time according to the working state of the stirring element, so that the hysteresis and the complexity of manual operation are avoided, the reliability and the timeliness of rotation direction switching are improved, the automatic operation of stirring equipment is realized, and the use comfort of a user is further ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a stirring device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a stirring apparatus according to a second embodiment of the present invention;
fig. 3 is a schematic flow chart of a control method for a stirring apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a juicer provided by the fourth embodiment of the present invention;
fig. 5 is a schematic view of a working process of a juice machine according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through embodiments with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Fig. 1 is a schematic structural diagram of a stirring apparatus according to a first embodiment of the present invention. The stirring equipment can be a juice extractor, a soybean milk machine, a flour mill or a food processor with multiple functions. This stirring class equipment includes: motor 10, motor drive circuit 11, main chip 12 and stirring component 13 still include: a torsion detecting unit 14, wherein:
the torque detection unit 14, the stirring element 13 and/or the transmission mechanism of the motor 10 are connected to detect a first torque of the stirring element 13 and/or a second torque of the transmission mechanism, and feed back the first torque to the main chip 12.
The stirring element may be, for example, a feed screw for comminuting and grinding the food material. The transmission mechanism may be, for example, a motor reduction gearbox. The first torsion may be a torsion borne by the feed screw when the food material is squeezed, and the second torsion may be a torsion borne by a gear of a reduction gearbox of the motor. When the stirring equipment squeezes the food materials, the first torsion and the second torsion are different due to different hardness degrees of the food materials or whether the feeding screw is clamped or not. Illustratively, the first and second torsion forces corresponding to harder food materials are greater than the first and second torsion forces corresponding to softer food materials; the first torsion and the second torsion corresponding to the feed screw rod when being clamped are larger than the first torsion and the second torsion corresponding to the feed screw rod when not being clamped. Thus, the operating state of the stirring element can be determined on the basis of the first torsion and/or the second torsion.
The main chip 12 is connected to the torque detection unit 14, and configured to determine an operating state of the stirring element 13 according to the first torque and/or the second torque, and generate a first rotation direction switching command according to the operating state.
For example, when the first torsion force and/or the second torsion force is smaller than the preset torsion force threshold, it may be determined that the stirring element is in a normal operation state or an idle rotation state, and the rotation direction is not switched, and the forward rotation of the stirring element is maintained or the rotation of the stirring element is stopped. When the first torsion and/or the second torsion are/is larger than a preset torsion threshold, the stirring element can be determined to be in a working state of being clamped or squeezing harder food materials, a first rotation direction switching instruction needs to be generated at the moment, the stirring element is switched from forward rotation to reverse rotation, the unloading of the stirring element can be realized through the reverse rotation, and therefore the state that the stirring element is clamped or the harder food materials are squeezed to cause incapability of running is relieved. For example, the torque corresponding to the torque preset threshold may be 40 n.m.
And the motor driving circuit 11 is connected with the main chip 12 and the motor 10 and is used for driving the motor 10 to rotate according to the first indication direction according to the first rotation direction switching instruction.
The motor driving circuit drives the motor to operate in a reverse direction according to the first indication direction, and the motor drives the feeding screw to rotate reversely, so that unloading is achieved. The first rotating direction switching instruction can also be sent to the forward and reverse rotating switch circuit by the main chip, and the forward and reverse rotating switch circuit sends the first rotating direction switching instruction to the motor driving circuit so as to drive the motor to rotate reversely. The forward and reverse switching circuit is a switch for forward rotation or reverse rotation of the existing manual adjusting stirring equipment, a first rotation direction switching instruction is sent to the forward and reverse switching circuit, the forward and reverse switching circuit sends the first rotation direction switching instruction to the motor driving circuit, manual adjustment is replaced, and automation of motor rotation direction switching can be achieved without changing the structure of the existing stirring equipment.
Further, the stirring type device further comprises:
the temperature detection unit is connected with the motor and used for detecting the temperature of the motor and feeding the temperature back to the main chip; the main chip is connected with the temperature detection unit and is also used for generating a rotation stopping instruction when the temperature of the motor exceeds a preset threshold value; and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
And when the continuous working time is too long, the temperature of the motor is gradually increased, and when the temperature reaches the temperature resistance value of the maximum grade of the temperature of the motor winding, namely the temperature preset threshold value, the motor driving circuit is used for powering off the motor, so that the whole machine is in overheat protection. And the user can be prompted with a buzzer to sound 3. When the temperature of the motor winding is reduced to a set value, the whole machine can be powered on again or a forward and reverse switching circuit is switched to a forward juicing mode from a stop gear, the whole machine can continue juicing, and the motor thermal protection exits.
In the embodiment, the first torsion of the stirring element and/or the second torsion of the motor transmission mechanism are detected by the torsion detection unit, and the main chip determines the working state of the stirring element according to the first torsion and/or the second torsion, so that the real-time monitoring of the working state of the stirring element can be ensured, and the accuracy of determining the working state of the stirring element is improved; the rotation direction switching instruction is generated by the main chip in real time according to the working state of the stirring element, so that the hysteresis and the complexity of manual operation are avoided, the reliability and the timeliness of rotation direction switching are improved, the automatic operation of stirring equipment is realized, and the use comfort of a user is further ensured.
Example two
Fig. 2 is a schematic structural diagram of a stirring apparatus according to a second embodiment of the present invention. On the basis of the above embodiment, the stirring apparatus is additionally provided with a current detection circuit, and accordingly, the apparatus includes: a motor 20, a motor driving circuit 21, a main chip 22, a stirring element 23, a torsion detecting unit 24 and a current detecting circuit 25.
A current detection circuit 25 for detecting a current value of the motor 20 and feeding back the current value to the main chip 22;
the main chip 22 is specifically configured to determine an operating state of the stirring element according to the first torsion and/or the second torsion, determine an overload state of the motor 20 according to the current value, and generate a first rotation direction switching instruction according to the overload state and the operating state.
The current detection circuit may be, for example, a circuit formed by a current comparator and a sampling resistor, the current value obtained by sampling the sampling resistor is an actual current value of the motor by setting a current preset threshold, the current preset threshold may be a current value corresponding to a maximum torque that the feeding screw can bear when squeezing the food material and a maximum torque that the motor reduction gearbox gear can bear, and the current preset threshold may be, for example, a peak current IPeak value2.3A. And comparing the actual current value obtained by sampling with a current preset threshold value, and determining that the motor is in an overload state when the actual current value is greater than the current preset threshold value. When the motor is in an overload state, the motor needs to be reversed to achieve the purpose of unloading.
Further, the main chip is specifically further configured to determine a working state of the stirring element according to the first torsion and/or the second torsion, determine an idle state of the motor according to the current value, and generate a rotation stop instruction according to the idle state and the working state; and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
When the first torque force and/or the second torque force is smaller than the preset torque force threshold value and the current value is smaller than the preset stopping threshold value, for example, the preset stopping threshold value is 0.5A, it can be determined that the operation of the stirring equipment is completed, and at this time, the rotation of the motor can be stopped. Preferably, when the current value is determined, whether the time that the current is smaller than the preset stop threshold reaches the preset time threshold is considered, so that the situation that the stirring equipment cannot normally work due to the fact that the rotation of the motor is stopped when the current value is smaller than the preset stop threshold is avoided. The preset time threshold may be set with reference to the time when the user puts in the food and the idle safe time of the mixing device, for example, if the set detection time is too short, when the user puts in the food slowly, the user may cause a false protection. The set time is longer than the average throwing time of the user, but if the time is set to be too long, the feeding screw can be damaged due to long-time idle running, the dead time can not exceed 1 minute 30 seconds at the longest, and therefore the preset time threshold can be selected from 30 seconds to 1 minute 30 seconds.
Further, the apparatus further comprises:
the rotating speed detection unit is connected with the motor and used for detecting the rotating speed of the motor and feeding the rotating speed back to the main chip;
the main chip is connected with the rotating speed detection unit, and is also used for determining the running state of the motor according to the rotating speed of the motor after generating a first rotating direction switching instruction according to the overload state and the working state, and generating a second rotating direction switching instruction according to the running state; and the motor driving circuit is further used for driving the motor to rotate according to a second indication direction according to the second rotation direction switching instruction.
The motor needs to be reversely rotated to unload the material due to the jamming or blockage of the feeding screw, for example, the motor needs to be reversely rotated for 2-3 circles when unloading, and if the rotating speed of the motor is 50-60RPM, the time required for reversely rotating and unloading the material is 2-3S. Therefore, the operation state of the motor can be determined by detecting the rotating speed of the motor, for example, the time for the motor to operate in the reverse rotation mode is required, and after the time for operating in the reverse rotation mode, the motor needs to continue to rotate in the forward rotation mode to squeeze food materials. The second rotation direction switching command may be that the motor is switched from reverse rotation to forward rotation.
The main chip is specifically further configured to:
determining preset time corresponding to preset running turns of the motor according to the rotating speed of the motor; and generating a second rotating direction switching instruction after the motor rotates according to the first indicating direction for the preset time.
The current value of the motor is detected by the current detection circuit, the overload state of the motor is determined by the current value, the motor operation safety is guaranteed, the first rotating direction switching instruction is generated according to the overload state of the motor and the working state of the stirring element, the automatic switching of the rotating directions of the motor is realized, the manual switching is avoided, and the simplicity and the comfort of the equipment are realized.
EXAMPLE III
Fig. 3 is a flowchart of a control method for a stirring type device according to a third embodiment of the present invention. The technical scheme of this embodiment can be applicable to the condition of blockking up or blocking stirring class equipment, and stirring class equipment can be juice extractor, stock machine, soybean milk machine, milling machine or the cooking machine that has multiple functions for example, and this stirring class equipment includes: the stirring device comprises a motor, a motor driving circuit, a main chip and a stirring element. The method specifically comprises the following operations:
s310, detecting a first torsion of the stirring element and/or a second torsion of a transmission mechanism of the motor through a torsion detection unit, and feeding back the first torsion to the main chip.
S320, determining the working state of the stirring element according to the first torsion and/or the second torsion through the main chip, and generating a first rotation direction switching instruction according to the working state.
And S330, driving the motor to rotate according to a first indication direction through the motor driving circuit according to the first rotation direction switching instruction.
Further, the method further comprises:
detecting the current value of the motor through a current detection circuit, and feeding the current value back to a main chip;
and determining the working state of the stirring element according to the first torsion and/or the second torsion through the main chip, determining the overload state of the motor according to the current value, and generating a first rotating direction switching instruction according to the overload state and the working state.
Further, the method further comprises:
detecting the rotating speed of the motor through a rotating speed detection unit, and feeding the rotating speed back to the main chip;
through the main chip, after a first rotation direction switching instruction is generated according to an overload state and a working state, the running state of the motor is determined according to the rotating speed of the motor, and a second rotation direction switching instruction is generated according to the running state;
and driving the motor to rotate according to a second indication direction through the motor driving circuit according to the second rotation direction switching instruction.
Further, the determining the operation state of the motor according to the rotation speed of the motor and generating a second rotation direction switching instruction according to the operation state includes:
determining preset time corresponding to preset running turns of the motor according to the rotating speed of the motor;
and generating a second rotating direction switching instruction after the motor rotates according to the first indicating direction for the preset time.
Further, the method further comprises: determining the working state of the stirring element according to the first torsion and/or the second torsion through the main chip, determining the idle state of the motor according to the current value, and generating a rotation stopping instruction according to the idle state and the working state; and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
Further, the method further comprises:
detecting the temperature of the motor through a temperature detection unit, and feeding the temperature back to the main chip;
generating a rotation stopping instruction when the temperature of the motor exceeds a preset threshold value through the main chip;
and driving the motor to stop rotating through the motor driving circuit according to the rotation stopping instruction.
The control method for the stirring equipment provided by the embodiment realizes the reliability and timeliness of the switching of the rotation direction of the motor, realizes the automatic operation of the stirring equipment, and further ensures the comfort of the user.
Example four
In this embodiment, a juice machine is taken as an example as a preferred embodiment of the present invention, and fig. 4 is a schematic structural diagram of a juice machine provided in the fourth embodiment of the present invention. This stock machine body includes:
Strong electric filter circuit 442 CAN realize filtering the effect of the clutter in the electric current, and wherein, ACL is the alternating current live wire input, and CAN is the alternating current zero line input, and PE is the earth connection input.
The juice machine also comprises a precursor component, such as a feeding screw, a filter screen and the like, and the functional component is used for realizing the function of crushing fruits and vegetables to realize the separation of residues and juices. Fig. 5 is a schematic view of a working flow of the juicer, specifically: when a user switches on the plug of the juice machine, the safety protection switch detects whether the precursor assembly is correctly installed, for example, a reed pipe can be adopted for detection, after the precursor assembly is assembled to the position, the reed pipe can sense the magnetic field of the magnet, the reed pipe and the magnet are in an attraction state, and the electric level at the position of the reed pipe is low. When the power is on and the forward and reverse switching circuit is in a stop gear, the whole machine is in a standby state, and the buzzer buzzes for 1 sound to remind a user. When the front body assembly is not assembled in place, the reed switch is disconnected, the safety protection switch detects that the reed switch is at a high level, and the buzzer continuously sounds for 3 times to remind a user.
The user manually triggers the forward and reverse switching circuit to carry out the juicing mode, and the juicing process passes through the current detection circuit when the current I isPeak value<When 2.3A is available, no overload signal exists, and the motor rotates forwards to perform juicing; when the peak current detected by the continuous 30S is lower than 0.5A, the juice squeezing is finished by the user, the forward and reverse switching circuit sends a signal to the motor driving circuit to disconnect the motor power supply circuit, the motor stops rotating, and the whole machine is in the standby mode again.
When current IPeak value>2.3A, feeding the overload signal back to the switching circuit to switch the motor driving circuit to reverse, unloading the barrel pressure of the precursor assembly until the peak current I is detected by the current detection circuit within 3SPeak value<At 2A, the motor driving circuit is switched to forward juice squeezingMode(s). The motor rotates clockwise, which is called forward rotation (juice squeezing condition). The motor rotates in a counterclockwise direction, referred to as reverse rotation (unloaded condition). When the torque provided by the motor exceeds 40n.m, it is referred to as overload. In the process of juicing, the torque generated by the rotary extrusion of the screw is loaded, and is called load.
The stock machine that this embodiment provided is through using current detection circuit, control complete machine safety protection and full automatic control, and the operation is safe simple more, has reduced user's operation burden, makes old man and children all can use, and the use customer that faces is more extensive.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. A stirring type device comprising: motor, motor drive circuit, main chip and stirring component, its characterized in that still includes: torsion detecting element, current detection circuit and rotational speed detecting element, wherein:
the torsion detection unit is connected with the stirring element and/or the transmission mechanism of the motor, is used for detecting a first torsion of the stirring element and/or a second torsion of the transmission mechanism, and feeds the first torsion back to the main chip;
the current detection circuit is used for detecting the current value of the motor and feeding the current value back to the main chip;
the main chip is connected with the torsion detection unit and used for determining the working state of the stirring element according to the first torsion and/or the second torsion, determining the overload state of the motor according to the current value and generating a first rotating direction switching instruction according to the overload state and the working state;
the motor driving circuit is connected with the main chip and the motor and used for driving the motor to rotate according to a first indication direction according to the first rotation direction switching instruction;
the rotating speed detection unit is connected with the motor and used for detecting the rotating speed of the motor and feeding the rotating speed back to the main chip;
the main chip is connected with the rotating speed detection unit, and is also used for determining the running state of the motor according to the rotating speed of the motor after generating a first rotating direction switching instruction according to the overload state and the working state, and generating a second rotating direction switching instruction according to the running state;
and the motor driving circuit is further used for driving the motor to rotate according to a second indication direction according to the second rotation direction switching instruction.
2. The apparatus of claim 1, wherein:
the main chip is specifically configured to: determining preset time corresponding to preset running turns of the motor according to the rotating speed of the motor; and generating a second rotating direction switching instruction after the motor rotates according to the first indicating direction for the preset time.
3. The apparatus of claim 1, wherein:
the main chip is specifically used for determining the working state of the stirring element according to the first torsion and/or the second torsion, determining the idle state of the motor according to the current value, and generating a rotation stopping instruction according to the idle state and the working state;
and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
4. The apparatus of claim 1, wherein:
the temperature detection unit is connected with the motor and used for detecting the temperature of the motor and feeding the temperature back to the main chip;
the main chip is connected with the temperature detection unit and is also used for generating a rotation stopping instruction when the temperature of the motor exceeds a preset threshold value;
and the motor driving circuit is also used for driving the motor to stop rotating according to the rotation stopping instruction.
5. A control method for controlling the stirring type device of any one of claims 1 to 4, the stirring type device comprising: motor, motor drive circuit, main chip and stirring component, characterized by, the method includes:
detecting a first torsion of the stirring element and/or a second torsion of a transmission mechanism of the motor through a torsion detection unit, and feeding back the first torsion to the main chip;
detecting the current value of the motor through a current detection circuit, and feeding the current value back to a main chip
Determining the working state of the stirring element according to the first torsion and/or the second torsion through the main chip, determining the overload state of the motor according to the current value, and generating a first rotating direction switching instruction according to the overload state and the working state;
driving the motor to rotate according to a first indication direction through the motor driving circuit according to the first rotation direction switching instruction;
detecting the rotating speed of the motor through a rotating speed detection unit, and feeding the rotating speed back to the main chip;
through the main chip, after a first rotation direction switching instruction is generated according to an overload state and a working state, the running state of the motor is determined according to the rotating speed of the motor, and a second rotation direction switching instruction is generated according to the running state;
and driving the motor to rotate according to a second indication direction through the motor driving circuit according to the second rotation direction switching instruction.
6. The method of claim 5, wherein determining the operating state of the motor based on the rotational speed of the motor and generating the second rotational direction switching command based on the operating state comprises:
determining preset time corresponding to preset running turns of the motor according to the rotating speed of the motor;
and generating a second rotating direction switching instruction after the motor rotates according to the first indicating direction for the preset time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109748061B (en) * | 2018-12-28 | 2021-11-09 | 珠海优特智厨科技有限公司 | Blanking state detection method, device and equipment |
| CN110654787A (en) * | 2019-10-31 | 2020-01-07 | 三一石油智能装备有限公司 | Auger control device and method |
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| CN102350958B (en) * | 2011-06-30 | 2013-04-10 | 奇瑞汽车股份有限公司 | Motor locked-rotor protecting method of electric car electric driving system |
| CN203885249U (en) * | 2014-04-23 | 2014-10-22 | 杭州九阳小家电有限公司 | Whole fruit squeeze juicer |
| CN204241651U (en) * | 2014-12-01 | 2015-04-01 | 广东美的生活电器制造有限公司 | The rotation-blocking up detection device of juice extractor and juice extractor |
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