CN110236407A - Food processor and its failure error-reporting method and system - Google Patents

Abstract

The invention discloses a food cooking machine and its fault reporting method and system. The food cooking machine includes a cooking container, a driving motor, a food processing part for processing food, an electric control board, a heater and a display board. The fault error reporting method includes: when the food cooking machine fails, the electric control board obtains the fault type of the food cooking machine, and obtains a fault code according to the fault type; the electric control board controls the heater and the drive motor to stop working, and according to the fault code Control the flashing of the fault indicator light of the electric control board, wherein the number of flashes of the fault indicator light of the electric control board is related to the fault type of the food cooking machine; based on the communication between the electric control board and the display board, the electric control board sends the fault code to to the display board; the display board controls the food cooking machine to send corresponding fault prompt information according to the fault code. Thus, the user can be informed of the fault information of the food cooking machine in time, and it is convenient for the maintenance personnel to quickly locate the fault problem.

Description

Food cooking machine and its fault reporting method and system

technical field

The invention relates to the technical field of household appliances, in particular to a fault reporting method for a food cooking machine, a fault reporting system for a food cooking machine, and a food cooking machine with the fault reporting system.

Background technique

Food cooking machines are widely used in life. With the improvement of living conditions, people's requirements for food cooking machines are also increasing.

When the current food cooking machine breaks down, such as abnormal food heating temperature, drive motor rotation failure, etc., the form of fault reporting is relatively simple, and most of them use a single fault display form, that is, all faults are displayed in one form. The method is not convenient for the after-sales maintenance personnel to quickly locate the fault problem, which brings inconvenience to the maintenance of the food processor.

Contents of the invention

The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. Therefore, the first object of the present invention is to propose a fault reporting method for a food cooking machine, so that users can know the fault information of the food cooking machine in time and quickly locate the fault problem.

The second object of the present invention is to propose a fault reporting system for a food cooking machine.

The third object of the present invention is to provide a food cooking machine.

In order to achieve the above purpose, the embodiment of the first aspect of the present invention proposes a fault reporting method for a food cooking machine. The food cooking machine includes a cooking container, a driving motor, a food processing unit for processing food, and an electric control board. , a heater and a display panel, a food storage cavity for holding food is formed in the cooking container, the food processing part extends into the food storage cavity and is driven by the drive motor relative to the cooking The container rotates, the electric control board is used to control the heater and the drive motor respectively, the display board is used to control the food cooking machine to display working information, and the heater is used to accommodate the food The food in the cavity is heated, and the electric control board communicates with the display board. The fault reporting method includes the following steps: when the food cooking machine fails, the electric control board obtains the food The fault type of the cooking machine, and obtain the fault code according to the fault type; the electric control board controls the heater and the drive motor to stop working, and controls the electric control board fault indicator light to flash according to the fault code, Wherein, the number of flashes of the fault indicator light of the electric control board is associated with the fault type of the food cooking machine; based on the communication between the electric control board and the display board, the electric control board The code is sent to the display board; the display board controls the food cooking machine to send corresponding fault prompt information according to the fault code.

According to the fault reporting method of the food cooking machine in the embodiment of the present invention, when the food cooking machine fails, the electric control board obtains the fault type of the food cooking machine, and obtains the fault code according to the fault type, and at the same time controls the heater and the drive motor to stop Work, and control the fault indicator light of the electric control board to flash according to the fault code, and send the fault code to the display board, and the display board controls the food cooking machine to send a corresponding fault prompt message according to the fault code. Thus, the user can be informed of the fault information of the food cooking machine in time, and it is convenient for the maintenance personnel to quickly locate the fault problem.

In addition, the fault reporting method for food cooking machines proposed above according to the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the food cooking machine further includes a display and a buzzer, wherein, when the display board receives the fault code, it controls the buzzer to give an alarm, and according to the fault The code controls the display to display corresponding fault information, and the fault information corresponds to the fault type.

According to an embodiment of the present invention, the electric control board obtains the fault code corresponding to the current fault type of the food cooking machine by querying a preset fault type table.

According to an embodiment of the present invention, the display panel also communicates wirelessly with an external smart device to send the fault code to the external smart device, so that the external smart device can voice prompt fault information according to the fault code .

According to an embodiment of the present invention, the driving motor is a brushless DC motor.

In order to achieve the above purpose, the embodiment of the second aspect of the present invention proposes a fault reporting system for a food cooking machine. The food cooking machine includes a cooking container, a driving motor, a food processing unit for processing food, and a heater. A food storage cavity for holding food is formed in the cooking container, the food processing part protrudes into the food storage cavity and rotates relative to the cooking container driven by the drive motor, and the heater uses For heating the food in the food storage cavity, the fault error reporting system includes: a fault error reporting device; an electric control board fault indicator light; an electric control board and a display board, between the electric control board and the display board For communication, the electric control board is used to obtain the fault type of the food processing machine when the food processing machine fails, and obtain the fault code according to the fault type, and also control the heater and the drive The motor stops working, and the fault indicator light of the electric control board is controlled to flash according to the fault code, wherein, the number of flashes of the fault indicator light of the electric control board is associated with the fault type of the food cooking machine; The control board is also used to communicate with the display board to send the fault code to the display board, and the display board is used to control the fault reporting device to issue a corresponding fault prompt according to the fault code information.

According to the fault reporting system of the food cooking machine according to the embodiment of the present invention, when the food cooking machine fails, the fault type of the food cooking machine is obtained through the electric control board, and the fault code is obtained according to the fault type, and the heater and the drive motor are also controlled at the same time Stop working, and control the fault indicator light of the electric control board to flash according to the fault code, and send the fault code to the display board, and control the food cooking machine to send corresponding fault prompt information according to the fault code through the display board. Thus, the user can be informed of the fault information of the food cooking machine in time, and it is convenient for the maintenance personnel to quickly locate the fault problem.

In addition, the fault reporting system of the food cooking machine proposed above according to the present invention can also have the following additional technical features:

According to an embodiment of the present invention, the fault reporting device includes a display and a buzzer, wherein, when the display board receives the fault code, it controls the buzzer to give an alarm, and according to the fault code The display is controlled to display corresponding fault information, and the fault information corresponds to the fault type.

According to an embodiment of the present invention, the electric control board obtains the fault code corresponding to the current fault type of the food cooking machine by querying a preset fault type table.

According to an embodiment of the present invention, the display panel also communicates wirelessly with an external smart device to send the fault code to the external smart device, so that the external smart device can voice prompt fault information according to the fault code .

Further, the present invention proposes a food cooking machine, comprising: a cooking container, a food containing cavity for holding food is formed in the cooking container; a driving motor; a food processing part for processing food, the The food processing part protrudes into the food storage chamber and is driven by the driving motor to rotate relative to the cooking container; and the fault reporting system of the food cooking machine in the above embodiment.

The food cooking machine of the embodiment of the present invention, through the above-mentioned fault reporting system of the food cooking machine, enables the user to know the fault information of the food cooking machine in time, and facilitates the maintenance personnel to quickly locate the fault problem.

In addition, the food cooking machine proposed according to the above-mentioned embodiments of the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the drive motor includes: a stator core, the stator core includes an annular stator yoke and a plurality of stator teeth, the width of the stator yoke is W, and the plurality of The stator teeth are arranged on the inner peripheral surface of the stator yoke, a stator tooth slot is formed between two adjacent stator teeth, and a plurality of stator teeth define a coaxial space with the stator yoke. Stator holes, each of the stator teeth includes a stator tooth main body connected to the stator yoke and a stator tooth shoe arranged at the inner end of the stator tooth main body, the width of each stator tooth main body is V, wherein, W: V=0.6-0.7; the rotor core, the rotor core is rotatably arranged in the stator hole and is coaxial with the stator hole.

According to an embodiment of the present invention, the drive motor includes: a stator core, the stator core includes an annular stator yoke and a plurality of stator teeth provided on the inner peripheral surface of the stator yoke, adjacent A stator cog is formed between two stator teeth, and a plurality of stator teeth define a stator hole coaxial with the stator yoke, and the maximum radial dimension of the stator yoke is D; the rotor Iron core, the rotor core is rotatably arranged in the stator hole and coaxial with the stator hole, the maximum radial dimension of the rotor core is d, wherein D and d satisfy: 0.4≤d /D≤0.55.

Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is a schematic structural view of a food cooking machine according to an embodiment of the present invention;

Fig. 2 is an assembly diagram of a stator core and a rotor core of a drive motor according to an embodiment of the present invention;

3 is a schematic structural view of a rotor core of a drive motor according to an embodiment of the present invention;

Fig. 4 is a structural schematic diagram of a rotor core of a drive motor according to another embodiment of the present invention;

Fig. 5 is a schematic flowchart of a fault reporting method for a food cooking machine according to an embodiment of the present invention;

6 is a schematic flowchart of a fault reporting method for a food cooking machine according to a specific example of an embodiment of the present invention; and

Fig. 7 is a schematic structural diagram of a fault reporting system of a food cooking machine according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

The fault reporting method of the food cooking machine, the fault reporting of the food cooking machine and the food cooking machine with the fault reporting system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

In an embodiment of the present invention, the food cooking machine may include a cooking container, a driving motor, a food processing element for processing food, and a heater. A food containing cavity for holding food is formed in the cooking container, and the food processing element Extending into the food storage cavity and being driven by the drive motor to rotate relative to the cooking container, the heater is used to heat the food in the food storage cavity.

As shown in Figure 1, the food cooking machine 200 of the embodiment of the present invention may include: a cooking container 210, a food processing part (not shown in Figure 1 ) for processing food and a driving motor for the food cooking machine 200 100.

Specifically, a food storage cavity for storing food may be formed in the cooking container 210 , the food processing part may be in transmission connection with the driving motor 100 , and the food processing part may extend into the food storage cavity. Thus, the food processing part can rotate relative to the cooking container 210 driven by the driving motor 100 , and then can process the food in the food storage chamber.

Referring to FIGS. 1-4 , the driving motor 100 may include: a stator core 10 and a rotor core 20 .

Specifically, the stator core 10 may include a stator yoke 11 and a plurality of stator teeth 12, wherein the stator yoke 11 is annular, and the plurality of stator teeth 12 may be arranged on the inner peripheral surface of the annular stator yoke 11, and the stator The yoke 11 can provide mechanical support for the plurality of stator teeth 12, so that the positions of the stator teeth 12 are fixed. A plurality of stator teeth 12 can be distributed along the circumferential direction of the stator yoke 11 at intervals, a stator slot 101 can be formed between two adjacent stator teeth 12, and the winding of the driving motor 100 can be wound on the stator slot 101. Teeth 12.

Furthermore, the plurality of stator teeth 12 may define a stator hole 102 coaxial with the stator yoke 11 , the rotor core 20 may be provided in the stator hole 102 , and the rotor core 20 may be coaxial with the stator hole 102 . The rotor core 20 can rotate around the axis in the stator hole 102 , and the inner peripheral surface of the rotor core 20 and the stator hole 102 can be separated by a predetermined distance, so that the rotor core 20 can rotate more smoothly.

Thus, after the current flows through the winding 14 of the drive motor 100, the plurality of stator teeth 12 will form a plurality of pairs of magnetic poles, and a magnetic field will be generated in the stator hole 102, and the rotor core 20 located in the stator hole 102 can be wound under the action of the magnetic field. The axis rotates to realize the conversion and output of electric energy.

It should be noted that, in the present invention, the number of stator teeth 12 can be flexibly set according to the actual situation. The number of stator teeth 12 in FIG. Among them, the number of stator teeth 12 may also be two, four or more, all of which are within the protection scope of the present invention.

In related technologies, the ratio of the rotor diameter to the stator diameter of the motor has no fixed value, usually 0.60-0.75. In this range, although the motor can output a large torque, the high-speed performance of the motor is poor, and the teeth of the motor As the slot torque increases, the motor is prone to vibration and greater noise. If the above problems are solved by adding a field weakening effect in the algorithm of the drive control circuit, the energy efficiency of the motor will be reduced.

However, in the present invention, the maximum radial dimension D of the stator yoke 11 and the maximum radial dimension d of the rotor core 20 satisfy 0.4≦d/D≦0.55. For example, in some specific embodiments of the present invention, the ratio d/D of the maximum radial dimension D of the stator yoke 11 to the maximum radial dimension d of the rotor core 20 may be 0.45, 0.48, 0.51 and 0.54, respectively.

When the maximum radial dimension D of the stator yoke 11 is constant, when d/D<0.4, the maximum radial dimension d of the rotor core 20 is too small. If the driving motor 100 runs at a low speed, for example, the rotational speed of the driving motor 100 <5000rpm, the load capacity of the rotor core 20 is too small, and under the same load driving conditions, the rotor core 20 with too small maximum radial dimension d will seriously heat up, affecting the normal operation of the drive motor 100 and reducing the efficiency of the drive motor 100 , and even damage may occur.

When the maximum radial dimension D of the stator yoke 11 is constant, when d/D>0.55, the cogging torque of the drive motor 100 will increase, and the moment of inertia of the rotor core 20 will increase. If the drive motor 100 High-speed operation, for example, when the rotational speed of the driving motor 100 is greater than 10000 rpm, the driving motor 100 will vibrate, which will generate relatively large noise, which will affect the performance of the driving motor 100 and user experience.

Therefore, the maximum radial dimension D of the stator yoke 11 and the maximum radial dimension d of the rotor core 20 satisfy 0.4≤d/D≤0.55, which can improve the output force of the rotor core 20 of the drive motor 100 and the efficiency of the drive motor 100 higher, to prevent the rotor core 20 from heating, and it is safer, and the maximum radial dimension d of the rotor core 20 can be made small to eliminate the inertia generated by the rotor core 20 during high-speed rotation and prevent the drive motor 100 from generating a large vibration noise.

In addition, it should be noted that, in some embodiments of the present invention, the outer contours of the stator core 10 and the rotor core 20 are circular, and the maximum radial dimension specifies the circular shape of the stator core 10 and the rotor core 20 The diameter of the outer contour. In some other embodiments of the present invention, the outer contours of the stator core 10 and the rotor core 20 are not circular, and the maximum radial dimension can be understood as the cross axis of the outer contours of the stator core 10 and the rotor core 20 The radial dimension is the dimension of the largest position.

According to the embodiment of the present invention, the maximum radial dimension D of the stator yoke 11 and the maximum radial dimension d of the rotor core 20 of the drive motor 100 for the food cooking machine 200 satisfy 0.4≤d/D≤0.55, which effectively solves the problem of The low-speed output force of the driving motor 100 is small and the high-speed vibration noise is large, which improves the efficiency and safety performance of the driving motor 100 .

In order to further improve the low-speed output force of the driving motor 100 and reduce the high-speed noise of the driving motor 100, according to a further embodiment of the present invention, the maximum radial dimension D of the stator yoke 11 and the maximum radial dimension d of the rotor core 20 can be further Satisfy: 0.5≤d/D≤0.55.

According to some embodiments of the present invention, as shown in FIGS. 2-4 , a plurality of magnet slots 23 may be provided in the rotor core 20 , and the plurality of magnet slots 23 may be arranged at intervals along the circumference of the rotor core 20 , and Both ends of the magnet slot 23 may respectively extend to the axial ends of the rotor core 20 , and a plurality of permanent magnets 25 may be inserted into the plurality of magnet slots 23 in a one-to-one correspondence.

Thus, the permanent magnet 25 can extend to both axial ends of the rotor core 20 in the magnet slot 23 , and the position of the permanent magnet 25 is fixed firmly and reliably, which can effectively prevent the permanent magnet 25 from loosening. In addition, multiple permanent magnets 25 can form multiple pairs of magnetic poles to generate a magnetic field, thereby generating an induced electromotive force, and realizing the conversion of electric energy. The rotor iron core 20 using the permanent magnet 25 does not need to be provided with an excitation coil, which not only helps to reduce the weight of the drive motor 100, but also reduces the volume of the drive motor 100, and does not need to start the excitation when starting, which makes the start faster and more energy-saving.

It should be noted that the present invention does not impose special restrictions on the number of magnet slots 23 and permanent magnets 25, and it only needs to satisfy that a plurality of permanent magnets 25 are inserted in a plurality of magnet slots 23 in a one-to-one correspondence to realize the fixing of the permanent magnets 25. And the requirement of forming multiple magnetic poles is sufficient. For example, in the specific embodiment shown in FIG. 3 and FIG. 4 , there are four magnet slots 23 and four permanent magnets 25 , and the four permanent magnets 25 are respectively inserted in the four magnet slots 23 . For another example, in other embodiments of the present invention, there may be two, six, eight or more magnet slots 23 and permanent magnets 25 respectively, which are all within the protection scope of the present invention.

In addition, at least one end of each magnet slot 23 in the circumferential direction of the rotor core 20 can be provided with a positioning slot 24, and the permanent magnet 25 can be inserted into the positioning slot 24 while being inserted into the magnet slot 23, and the positioning slot 24 can further define the position of the permanent magnet 25. The position of the permanent magnet 25 is fixed more accurately and firmly.

Further, as shown in FIG. 3 and FIG. 4 , the linear distance between the two ends of each magnet slot 23 in the circumferential direction of the rotor core 20 is b, and the maximum diameter of the center of the rotor core 20 from the outer peripheral surface of the rotor core 20 is b. The directional distance is R, and b and R satisfy b:R=0.95-1.0.

When b:R<0.95, the length of the permanent magnet 25 in the magnet slot 23 is too short, reducing the utilization rate of the rotor core 20, thereby reducing the energy efficiency of the drive motor 100; when b:R>1, the rotor will be enlarged The magnetic flux leakage of the iron core 20 will also reduce the energy efficiency of the driving motor 100 . Therefore, in some embodiments of the present invention, when b:R=0.95-1.0, for example, in some specific embodiments of the present invention, b:R can be 0.95, 0.96, 0.97, 0.98, 0.99 and 1.0, etc. , effectively ensuring the energy efficiency of the drive motor 100 .

According to some embodiments of the present invention, as shown in FIG. 3 and FIG. 4 , the minimum distance between the magnet slot 23 and the outer peripheral surface of the rotor core 20 is a1, and the minimum distance between the stator slot 24 and the outer peripheral surface of the rotor core 20 is a2 , the minimum distance between the permanent magnet 25 and the outer peripheral surface of the rotor core 20 can be understood as the value of the smaller one of a1 and a2, that is, min(a1, a2). If min(a1, a2) is too small, the mechanical strength of the rotor core 20 will decrease, thereby reducing the reliability of the rotor core 20; and if min(a1, a2) is too large, the leakage of the rotor core 20 will be increased. magnetism, thereby reducing the energy efficiency of the driving motor 100.

Therefore, in some embodiments of the present invention, min(a1, a2)=0.8mm-1.8mm, while ensuring the mechanical strength and energy efficiency of the rotor core 20 . For example, in some specific embodiments of the present invention, min(a1, a2) may be 0.8 mm, 1.0 mm, 1.2 mm, 1.4 mm, 1.6 mm, and 1.8 mm, respectively.

In addition, the present invention does not specifically limit the shape of the magnet slot 23, and only needs to meet the requirement that the bisector of the length direction of the magnet slot 23 passes through the center of the rotor core 20, so that the magnetic field generated by the permanent magnet 25 in the magnet slot 23 more evenly distributed. For example, in the example shown in FIG. 3 , the magnet slot 23 is an elongated straight slot, and the straight slot extends along the chord line direction of the rotor core 20, and the distance b between the two ends of the straight slot is the extension length of the straight slot . In the example shown in FIG. 4 , the magnet slot 23 is a strip-shaped arc-shaped slot extending along the circumference of the rotor core 20, and the distance b between the two ends of the arc-shaped slot is the chord of the arc-shaped slot long.

In some implementations of the present invention, as shown in FIG. 2 , the outer contour of the radial section of the stator yoke 11 can be substantially circular, the structure of the stator yoke 11 is more stable, and it is convenient for the stator yoke 11 to connect with the stator teeth 12. The connection is fixed.

In addition, the stator core 10 according to the embodiment of the present invention may further include a plurality of positioning protrusions 13, and the plurality of positioning protrusions 13 may be spaced on the outer peripheral surface of the stator yoke 11 along the circumferential direction of the stator yoke 11, and each The positioning protrusions 13 may extend along the radial direction of the stator yoke 11 . Therefore, when the driving motor 100 is assembled, the stator core 10 can be positioned with the bracket of the driving motor 100 through the positioning protrusion 13 , which makes the driving motor 100 easier to assemble and more accurately positioned.

It should be noted that the present invention does not impose special restrictions on the number and location of the positioning protrusions 13, for example, in the specific embodiment shown in Figure 2, the number of positioning protrusions 13 is equal to the number of stator teeth 12 , and the positioning protrusions 13 are provided on the outer peripheral surface of the stator yoke 11 in one-to-one correspondence with the positions of the stator teeth 12 , which facilitates the mold design and molding of the stator core 10 . In some unillustrated embodiments of the present invention, the number and position of the positioning protrusions 13 may not correspond to the stator teeth 12 one-to-one, it only needs to meet the requirement that the positioning protrusions 13 are spaced on the outer peripheral surface of the stator yoke 11 It is enough to realize the requirement on the positioning of the stator core 10 .

According to some embodiments of the present invention, as shown in FIG. 2 , each stator slot 101 can communicate with the stator hole 102 respectively, so that the winding 14 of the stator core 10 can be connected to the stator hole 102 by the opening of the stator slot 101 . Carry out winding, winding is convenient and quick.

In some embodiments of the present invention, as shown in FIG. 3 and FIG. 4 , a plurality of pole teeth 21 may be formed on the outer periphery of the rotor core 20 , and the plurality of pole teeth 21 may be distributed along the circumferential direction of the rotor core 20 and Protruding outward, tooth slots 22 are formed between two adjacent pole teeth 21 , and, in an embodiment with a plurality of magnet slots 23 , the magnet slots 23 and the pole teeth 21 can be provided in a one-to-one correspondence. At this time, the rotor core 20 is formed as a rotor with a salient pole structure. Compared with the full-circle rotor in the related art, the rotor with a salient pole structure can prevent magnetic flux leakage and cogging between rotor poles, thereby improving the performance of the rotor core. 20 efficiency.

In addition, it should be noted that, for a rotor core 20 with a plurality of pole teeth 21, the maximum outer diameter d of the rotor core 20 refers to the two pole teeth 21 whose tooth tops pass through the axis of the rotor core 20 The connecting line size of the tooth top.

Further, referring to FIG. 3 and FIG. 4 , the normal tooth profile of the pole teeth 21 can be formed in a circular arc shape, and the outer periphery of the axial section of the rotor core 20 can be formed by successively connecting multiple circular arc shapes. There are tooth grooves 22 formed at the arc-shaped joints.

In addition, as shown in Fig. 3 and Fig. 4, the radius of the circle with the center of the rotor core 20 as the center and tangent to the tooth tip of the pole tooth 21 is R (at this time, R = 0.5d), and the tooth groove 22 The radius of a circle that is tangent to the groove bottom of the rotor core 20 and centered on the center of the rotor core 20 is r. If r:R<0.96, the extension length of the pole teeth 21 along the circumferential direction of the rotor core 20 will be too short, reducing the performance of the drive motor 100; if r:R>0.98, the tooth slots 22 will be too small, and the When the driving motor 100 is running, the noise interference caused by the cogging cannot be effectively reduced. Therefore, in some embodiments of the present invention, r:R=0.96-0.98, for example, in some specific embodiments of the present invention, r:R can be 0.96, 0.97 and 0.98, etc., effectively reducing the cogging effect , while ensuring the efficiency of the drive motor 100 .

Referring to FIG. 2 , each stator tooth part 12 may include: a stator tooth part main body 121 and a stator tooth shoe 122 . Wherein, the stator tooth part main body 121 is connected with the stator yoke part 11, so that the stator tooth part 12 and the stator yoke part 11 can be connected as a whole. The stator tooth shoe 122 is arranged at the inner end of the stator tooth body 121, on the one hand, it can reduce the air gap reluctance between the stator tooth 12 and the rotor core 20, and improve the magnetic field distribution; The winding 14 on the stator tooth portion 12 is fixed to prevent the winding 14 from loosening from the inner end of the stator tooth portion 12, and the winding 14 is fixed more reliably.

In addition, the width of the stator yoke 11 may be W, and the width of each stator tooth main body 121 may be V. For the stator core 10 with the same shape, that is, when the maximum radial dimension D of the stator core 10 is constant, if W: V is too small, the magnetic flux density of the stator teeth 12 will be too high, and even the magnetic flux density will be saturated. During the working process of the driving motor 100 , the iron loss of the stator tooth portion 12 is relatively large, and the temperature rise of the stator tooth portion 12 is too high. Moreover, the stator slots 101 between two adjacent stator teeth 12 are too small, and the distance between two adjacent stator teeth 12 is too short, which easily forms an electromagnetic circuit, thereby reducing the energy efficiency of the driving motor 100 .

If W: V is too large, the magnetic flux density of the stator yoke 11 will be too high, and even the magnetic flux density will be saturated. During the working process of the driving motor 100, the iron loss of the stator yoke 11 will be large and the temperature rise will be too high. The phenomenon.

Therefore, in some embodiments of the present invention, the width W of the stator yoke 11 and the width V of each stator tooth body 121 can satisfy W: V=0.6-0.7, and the stator yoke 11 and the stator teeth 12 can be more Reasonably distribute the magnetic flux density of the stator core 10 to make the temperature rise of the driving motor 100 more balanced, so as to improve the service life and safety performance of the driving motor 100 . For example, in some specific embodiments of the present invention, the ratio W:V of the width W of the stator yoke 11 to the width V of the stator tooth main body 121 may be 0.6, 0.63, 0.65, 0.68 and 0.7, respectively.

According to the embodiment of the present invention, the driving motor 100 for the food cooking machine 200 can be a DC brushless motor, and the DC brushless motor can be a variable frequency motor. The motor can provide different rotational speeds, torques and times, etc., making the food cooking machine 200 with the drive motor 100 intelligent. In addition, the DC brushless motor does not need carbon brushes or other structures for commutation, there is no carbon brush wear, and the operating noise is lower, which is beneficial to improving the service life of the food cooking machine 200 and improving user experience.

Since the driving motor 100 for the food cooking machine 200 according to the embodiment of the present invention has the above-mentioned beneficial technical effects, the food cooking machine 200 according to the embodiment of the present invention can effectively implement the ground wire assembly 40 without changing the structure of the stator assembly 30 The electrical connection with the stator assembly 30 is conducive to automatic installation, saves manpower, improves assembly efficiency and assembly qualification rate, and the connection structure is firm and reliable, not easy to loosen, which improves safety.

Further, the food cooking machine 200 may further include a base 220, and the cooking container 210 may be a cup assembly, and the cup assembly is detachably arranged on the base 220, so as to facilitate taking and placing food and cleaning the cup assembly. The drive motor 100 can be installed on the machine base 220, and the food processing part can be a knife assembly connected to the cup body assembly. When the cup body assembly is arranged on the machine base 220, the drive motor 100 can be connected with the knife assembly in transmission, thus, the drive motor 100 can drive the knife assembly to rotate relative to the cup body assembly, so that the knife assembly can cut food and so on.

Optionally, in the embodiment of the present invention, the food cooking machine 200 may be a blender, a wall breaker, a juicer, a juice extractor, or a soybean milk machine. The speed of the wall breaking machine is high, which can be used to process hard food, and can fully break the wall to release a large amount of phytochemicals present in the peel, core and rhizome of the food; Higher rotation speed of the juice extractor can achieve crushing and mixing of more kinds of food; higher rotation speed of the soybean milk machine can realize the whole process of preheating, beating, cooking and delayed cooking. automation and more.

Based on the food cooking machine of the above embodiment, the present invention proposes a fault reporting method for the food cooking machine.

In this embodiment, referring to FIG. 1 , the food cooking machine 200 may further include: an electric control system 230 and a display assembly 240 . Wherein, the electric control system 230 includes an electric control board, the electric control board can be installed on the base 220 , and the electric control board can be electrically connected with the driving motor 100 to control the driving motor 100 to work.

The display assembly 240 includes a display board, which can also be installed on the base 220, and the display board can be connected with the electric control board, and the electric control board and the display board communicate with each other. The display panel can be used to display the working information of the food cooking machine 200, and in a further embodiment of the present invention, the display component 240 can have operation buttons, and the user can control the electronic control system 230 by operating the buttons, and then control the food cooking machine 200 working mode and status, etc., more convenient to use.

Fig. 5 is a schematic flowchart of a fault reporting method for a food cooking machine according to an embodiment of the present invention.

As shown in Figure 5, the fault reporting method of the food cooking machine according to the embodiment of the present invention includes the following steps:

S101, when the food cooking machine fails, the electric control board obtains the fault type of the food processing machine, and obtains a fault code according to the fault type.

Wherein, a preset fault type table can be set in advance, and the fault type table includes the corresponding relationship between fault types and fault codes.

Specifically, the electric control board obtains the fault code corresponding to the current fault type of the food cooking machine by querying a preset fault type table.

S102, the electric control board controls the heater and the drive motor to stop working, and controls the fault indicator light of the electric control board to flash according to the fault code, wherein the number of flashes of the fault indicator light of the electric control board is associated with the fault type of the food cooking machine.

For example, fault type 1 corresponds to 1 blink, fault type 2 corresponds to 2 blinks, fault type 3 corresponds to 3 blinks, and so on.

Optionally, in order to let the user know the fault and the fault type of the food cooking machine in time, the electric control board can control the fault indicator light of the electric control board to flash periodically, and the number of times each flash is associated with the fault type of the food cooking machine, For example, the fault indicator light of the control electric control board flashes 3 times every t1 time (such as 2 seconds), and the interval between two adjacent flashes of the 3 flashes is the time that can be observed by naked eyes (such as 300ms).

S103, based on the communication between the electric control board and the display board, the electric control board sends the fault code to the display board.

S104, the display board controls the food cooking machine to send corresponding fault prompt information according to the fault code.

In an example of the present invention, the food cooking machine also includes a display and a buzzer, wherein, when the display board receives a fault code, it controls the buzzer to give an alarm, and controls the display to display corresponding fault information according to the fault code. The information corresponds to the fault type.

Further, the display board also communicates wirelessly with the external smart device to send the fault code to the external smart device, so that the external smart device can voice prompt fault information according to the fault code.

Wherein, the external smart device has a voice function, such as a smart phone, a tablet computer, and the like.

In a specific example of the present invention, first determine a preset fault type table, that is, the correspondence between fault types and fault codes, and store the table in a corresponding storage module. As shown in Figure 6, during the working process of the food cooking machine, when a fault occurs, the electric control board MCU (Micro-Controll Unit, micro-processing unit) obtains the fault type of the food cooking machine, and queries the preset fault according to the fault type Type table to determine the corresponding DTC. The MCU controls the heater and the drive motor to stop working, and outputs a high level at regular intervals according to the fault code to control the fault indicator light on the electric control board to flash X periodically, where X is associated with the fault type.

At the same time, the MCU sends the fault code to the display board through the serial port, and the display board obtains the fault code, and displays the fault code on the screen or in the form of a digital tube. Therefore, the display of the fault type is more intuitive, and it is convenient to locate the fault problem where. Further, the display panel can also control the buzzer of the food cooking machine to give an alarm prompt, or send the fault code to the user's external smart device (such as a smart phone) through wireless communication, so that the external smart device can make a voice call according to the fault code. Prompt fault information.

To sum up, according to the fault reporting method of the food cooking machine according to the embodiment of the present invention, when the food cooking machine fails, the electric control board obtains the fault type of the food cooking machine, and obtains the fault code according to the fault type, and also controls the heater and The drive motor stops working, and the fault indicator light of the electric control board is controlled to flash according to the fault code, and the fault code is sent to the display board, and the display board controls the food cooking machine to send a corresponding fault prompt message according to the fault code. Thus, the user can be informed of the fault information of the food cooking machine in time, and it is convenient for the maintenance personnel to quickly locate the fault problem.

Based on the food cooking machine of the above embodiments, the present invention proposes a fault reporting system for the food cooking machine.

Fig. 7 is a schematic structural diagram of a fault reporting system of a food cooking machine according to an embodiment of the present invention.

As shown in FIG. 7 , the fault reporting system 500 of a food cooking machine includes: a fault reporting device 510 , an electric control board fault indicator light 520 , an electric control board 530 and a display board 540 .

Among them, the electronic control board 530 communicates with the display board 540, and the electric control board 530 is used to obtain the fault type of the food processing machine when the food processing machine fails, and obtain the fault code according to the fault type, and also control the heater and The driving motor stops working, and controls the electric control board fault indicator light 520 to flash according to the fault code, wherein, the number of times of the electric control board fault light flashing is associated with the fault type of the food cooking machine; the electric control board 530 is also used to communicate with The display board 540 communicates to send the fault code to the display board 540, and the display board 540 is used to control the fault reporting device 510 to send corresponding fault prompt information according to the fault code.

Specifically, the electric control board 530 can be arranged in the electric control system 230 shown in FIG. Work. The display board 540 can be arranged in the display assembly 240 shown in FIG. 1 , the display board 540 can also be installed on the base 220 , and the display board 540 can be connected with the electric control board 530 . The display board 540 can be used to display the working information of the food cooking machine 200, and in a further embodiment of the present invention, the display board 540 can have operation buttons, and the user can control the electric control board 530 by operating the buttons, and then control the food cooking machine 200 working mode and status, etc., more convenient to use.

In an example of the present invention, a preset fault type table may be preset, and the fault type table includes correspondence between fault types and fault codes.

Specifically, the electric control board 530 can obtain the fault code corresponding to the current fault type of the food cooking machine by querying a preset fault type table.

In an example of the present invention, the fault reporting device 510 includes a display and a buzzer, wherein the display board 540 controls the buzzer to give an alarm when receiving a fault code, and controls the display to display corresponding fault information according to the fault code, The fault information corresponds to the fault type.

Further, the display panel 540 also communicates wirelessly with the external smart device to send the fault code to the external smart device, so that the external smart device can voice prompt fault information according to the fault code.

To sum up, according to the fault reporting system of the food cooking machine according to the embodiment of the present invention, when the food cooking machine fails, the fault type of the food cooking machine is obtained through the electronic control board, and the fault code is obtained according to the fault type, and the heater is also controlled at the same time. and the driving motor stop working, and control the fault indicator light of the electric control board to flash according to the fault code, and send the fault code to the display board, and control the food cooking machine to send corresponding fault prompt information according to the fault code through the display board. Thus, the user can be informed of the fault information of the food cooking machine in time, and it is convenient for the maintenance personnel to quickly locate the fault problem.

In order to realize the above embodiments, the present invention also proposes a food cooking machine, which includes the above-mentioned fault reporting system of the food cooking machine.

It should be noted that for other specific implementations of the food cooking machine according to the embodiment of the present invention, reference may be made to FIGS. 1-4 and their related descriptions, which will not be repeated here.

The food cooking machine of the embodiment of the present invention, through the above-mentioned fault reporting system of the food cooking machine, enables the user to know the fault information of the food cooking machine in time, and facilitates the maintenance personnel to quickly locate the fault problem.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of a process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processors, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment for use. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: a discrete Logic circuits, ASICs with suitable combinational logic gates, Programmable Gate Arrays (PGA), Field Programmable Gate Arrays (FPGA), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" , "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (12)

1. A fault reporting method for a food cooking machine, characterized in that, the food cooking machine includes a cooking container, a drive motor, a food processing part for processing food, an electric control board, a heater and a display panel, and the A food storage cavity for holding food is formed in the cooking container, the food processing part protrudes into the food storage cavity and rotates relative to the cooking container driven by the drive motor, and the electric control board It is used to control the heater and the driving motor respectively, the display board is used to control the food cooking machine to display working information, and the heater is used to heat the food in the food storage chamber, so Communication between the electric control board and the display board, the fault reporting method includes the following steps: When the food cooking machine fails, the electric control board obtains the fault type of the food cooking machine, and obtains a fault code according to the fault type; The electric control board controls the heater and the drive motor to stop working, and controls the fault indicator light of the electric control board to flash according to the fault code, wherein, the number of flashes of the fault indicator light of the electric control board is the same as that of the The fault type of the food processor is correlated; Based on the communication between the electric control board and the display board, the electric control board sends the fault code to the display board; The display panel controls the food cooking machine to send corresponding fault prompt information according to the fault code. 2. The fault error reporting method of a food cooking machine as claimed in claim 1, wherein the food cooking machine also includes a display and a buzzer, wherein the display board controls when receiving the fault code The buzzer gives an alarm, and controls the display to display corresponding fault information according to the fault code, and the fault information corresponds to the fault type. 3. The fault error reporting method of the food cooking machine according to claim 1 or 2, wherein the electric control board obtains the fault corresponding to the current fault type of the food cooking machine by querying the preset fault type table. fault code. 4. The fault reporting method of a food cooking machine according to claim 1, wherein the display panel also communicates wirelessly with an external smart device to send the fault code to the external smart device, so that the The external intelligent device performs voice prompting of fault information according to the fault code. 5. The fault reporting method of a food cooking machine according to claim 1, wherein the drive motor is a brushless DC motor. 6. A fault reporting system for a food cooking machine, characterized in that, the food cooking machine includes a cooking container, a drive motor, a food processing part and a heater for processing food, and the cooking container is formed with a A food storage cavity for holding food, the food processing part protrudes into the food storage cavity and rotates relative to the cooking container driven by the drive motor, and the heater is used for heating the food storage cavity The food is heated, and the fault reporting system includes: Fault reporting device; Electric control board fault indicator light; An electric control board and a display board, the electric control board communicates with the display board, and the electric control board is used to obtain the fault type of the food cooking machine when the food cooking machine fails, and according to The fault type obtains a fault code, and at the same time controls the heater and the drive motor to stop working, and controls the fault indicator light of the electric control board to flash according to the fault code, wherein the fault indication of the electric control board the number of blinks of the light is associated with the type of failure of the food processor; The electric control board is also used to communicate with the display board to send the fault code to the display board, and the display board is used to control the fault reporting device to send a corresponding error code according to the fault code. fault message. 7. The fault reporting system of a food cooking machine according to claim 6, wherein the fault reporting device includes a display and a buzzer, wherein, when the display board receives the fault code, the control unit The buzzer gives an alarm, and controls the display to display corresponding fault information according to the fault code, and the fault information corresponds to the fault type. 8. The fault error reporting system of the food cooking machine as claimed in claim 6 or 7, wherein the electric control board obtains the fault corresponding to the current fault type of the food cooking machine by querying the preset fault type table. fault code. 9. The fault reporting system of a food cooking machine according to claim 6, wherein the display panel also communicates wirelessly with an external smart device to send the fault code to the external smart device, so that the The external intelligent device performs voice prompting of fault information according to the fault code. 10. A food cooking machine, characterized in that it comprises: A cooking container, wherein a food containing cavity for holding food is formed in the cooking container; motor; a food processing member for processing food, the food processing member protrudes into the food receiving cavity and is driven by the driving motor to rotate relative to the cooking container; and The fault reporting system of a food cooking machine according to any one of claims 6-9. 11. The food cooking machine according to claim 10, wherein the drive motor comprises: The stator core, the stator core includes an annular stator yoke and a plurality of stator teeth, the width of the stator yoke is W, and the plurality of stator teeth are arranged on the inner peripheral surface of the stator yoke , a stator cog is formed between two adjacent stator teeth, a plurality of stator teeth define a stator hole coaxial with the stator yoke, and each stator tooth includes a The stator tooth main body connected to the stator yoke and the stator tooth shoe provided at the inner end of the stator tooth main body, the width of each stator tooth main body is V, wherein, W: V=0.6-0.7; The rotor core is rotatably arranged in the stator hole and is coaxial with the stator hole. 12. The food cooking machine according to claim 10, wherein the driving motor comprises: A stator core, the stator core includes an annular stator yoke and a plurality of stator teeth provided on the inner peripheral surface of the stator yoke, a stator tooth slot is formed between two adjacent stator teeth , a plurality of the stator teeth define a stator hole coaxial with the stator yoke, and the maximum radial dimension of the stator yoke is D; A rotor core, the rotor core is rotatably arranged in the stator hole and coaxial with the stator hole, the maximum radial dimension of the rotor core is d, wherein D and d satisfy: 0.4≤ d/D≤0.55.