CN213371287U

CN213371287U - Food processing machine

Info

Publication number: CN213371287U
Application number: CN202021541062.0U
Authority: CN
Inventors: 王旭宁; 郑明伟; 周伟
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-06-08
Anticipated expiration: 2030-07-30

Abstract

The embodiment of the utility model discloses food preparation machine, include: the switch assembly is connected to a switch loop of the control unit, and the first component and the second component are matched in place and then trigger the switch assembly to enable the control unit to be powered on. The embodiment of the utility model discloses food preparation machine when can realize the low-power consumption problem, reduce cost just reduces the complete machine size, can realize food preparation machine's miniaturization.

Description

Food processing machine

Technical Field

The present invention relates to, but is not limited to, the field of kitchen appliances, and more particularly, to a food processor.

Background

At present, the food processor, especially the rechargeable juicer, has huge market prospect and large demand, and simultaneously has extremely high requirements on cost performance and safety. The circuit scheme of the existing juicer adopts a battery for power supply, and the power on/off of the battery, a chip and external equipment is realized through a hardware circuit, so that the problem of low power consumption is solved.

Fig. 1 is a schematic circuit diagram of a hardware circuit for implementing power on and off in the prior art, fig. 2 is a schematic structural diagram of a main control chip in the prior art, and as shown in fig. 1 and 2, some low-power-consumption schemes for implementing power on and off of a battery, a chip and a peripheral device through the hardware circuit are used, an output terminal power of the hardware circuit for implementing power on and off is connected to a signal pin P01 of the main control chip, a KEY trigger power-on circuit is designed according to the on, off and off characteristics of a plurality of triodes, a KEY1 is pressed, and Q3 is turned on, so that Q1 is always turned on, and the main control chip is powered on. It can be known that the existing hardware circuit has many related devices, a circuit board with a large size and a high cost, and cannot be miniaturized.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a food processor, include: the switch assembly is connected to a switch loop of the control unit, and the first component and the second component are matched in place and then trigger the switch assembly to enable the control unit to be powered on.

Optionally, the switch assembly is connected between a power supply and a power supply pin of the control unit.

Optionally, the food processor further includes a current control circuit, the current control circuit is connected to the switch assembly, the switch assembly is closed, and the supply current output by the current control circuit is less than 10 mA.

Optionally, the first component is a base, the second component is a cup body, and the switch assembly is arranged at a position on the base for mounting the cup body;

the cup body is installed in place, and the cup body triggers the switch assembly to close the switch assembly;

or,

the cup body is installed in place, and the trigger piece triggers the switch assembly to close the switch assembly.

Optionally, the switch assembly includes a tact switch, the cup body is mounted in place, and the cup body triggers the tact switch to close the tact switch;

or,

the switch component comprises a magnetic control switch, the trigger piece is a magnet, the cup body is installed in place, and the magnet triggers the magnetic control switch to close the magnetic control switch;

or,

the switch assembly comprises a microswitch, the trigger part is a push rod or the cup wall of the cup body, the cup body is installed in place, and the push rod or the cup wall of the cup body triggers the microswitch so that the microswitch is closed.

Optionally, the first part is a cup body, the second part is a cup cover, the cup cover and the cup body are matched to form a processing cavity, and the cup cover covers the cup body so that the switch assembly is closed.

Optionally, the switch assembly is arranged between the cup body and the cup cover, the cup cover covers the cup body, and the cup cover triggers the switch assembly to close the switch assembly.

Optionally, food processor still includes the frame, the cup with the switch module is located on the frame, the bowl cover lid fits the cup, the bowl cover triggers the switch module so that the switch module is closed.

Optionally, the food processor further includes a power supply circuit for supplying power to the control unit, the switch assembly is connected between the power supply circuit and a power pin of the control unit, and the switch assembly is closed, so that the power supply circuit supplies power to the control unit.

Optionally, the power circuit comprises a battery assembly.

The utility model discloses at least one embodiment provides a food processor compares with prior art, has following beneficial effect: the switch assembly is connected to a switch loop of the control unit, and the on-off of the control unit is realized through the switch assembly of one peripheral, so that the power consumption of the control unit is reduced, the problem of low power consumption is realized, meanwhile, a hardware low-power-consumption circuit is not required to be arranged, the number of components is reduced, the cost is reduced, the size of the whole machine is reduced, and the miniaturization of the food processor is realized.

The utility model discloses in some embodiments of the embodiment, the switch module of setting can also reach following effect:

1. the switch assembly is connected in series with a power pin of the control unit, the control unit can be powered on when the switch assembly is closed while the control unit is powered on and off, and the control unit can be prevented from being in a sleep state for a long time, so that the occurrence of crash is avoided.

2. The switch assembly adopts a micro switch, a magnetic control switch or a tact switch, so that the control unit is powered on when the switch assembly is closed, the problem of low power consumption is solved, meanwhile, the overcurrent requirement of the switch assemblies such as the micro switch, the magnetic control switch or the tact switch is low, and the power consumption current in a low power consumption mode can be reduced to below 10 mA.

The utility model discloses in some implementation modes of embodiment, can also reach following effect:

1. the control unit can be powered on when the trigger switch assembly is closed when the cup body is mounted in place, so that the safety is guaranteed while the electricity is saved, and the safety problem caused by the fact that the control unit controls the motor to drive the blade or the screw to work after the control unit is powered on when the cup body is not mounted in place or screwed in place can be avoided.

2. Applicable in the food preparation machine including cup and bowl cover, when the bowl cover lid fits the cup trigger switch subassembly, the control unit could go up the electricity, when practicing thrift the power saving, guarantees the security, can avoid if the bowl cover does not cover when fitting the cup, the control unit is gone up the electric back control motor and is driven blade or screw rod work and the safety problem that causes.

1. the switch component can be a touch switch, and the on-off of the control unit is realized through the touch switch, so that the cost is lowest.

2. The switch component can be a magnetic control switch, and the on-off of the control unit is realized through the magnetic control switch and the matched magnet, so that the cost is low.

3. The switch component can be a microswitch, and the on-off of the control unit is realized through the microswitch and the matched pushing device, so that the cost is low.

Additional features and advantages 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 the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

FIG. 1 is a circuit schematic of a prior art hardware circuit implementing power on and off;

FIG. 2 is a schematic diagram of a prior art main control chip;

FIG. 3 is a block diagram of a food processor according to an exemplary embodiment of the present invention;

FIG. 4 is a schematic circuit diagram of a food processor according to an exemplary embodiment of the present invention;

fig. 5 is a block diagram of a food processor according to an exemplary embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a food processor according to an exemplary embodiment of the present invention;

fig. 7 is a schematic structural diagram of a food processor according to an exemplary embodiment of the present invention;

fig. 8 is a schematic structural diagram of a food processor according to an exemplary embodiment of the present invention;

FIG. 9 is a schematic diagram of the food processor of FIG. 8 in a disassembled configuration;

fig. 10A is a schematic structural diagram of a switch assembly according to an exemplary embodiment of the present invention;

fig. 10B is a schematic structural diagram of a switch assembly according to an exemplary embodiment of the present invention;

fig. 10C is a schematic structural diagram of a switch assembly according to an exemplary embodiment of the present invention

Fig. 11 is a schematic diagram of an operation mode of a control unit according to an embodiment of the present invention;

fig. 12 is a flowchart illustrating operation mode switching of a food processor according to an embodiment of the present invention;

fig. 13 is a block diagram of a food processor according to an exemplary embodiment of the present invention.

Description of reference numerals:

10-a power supply circuit; 20-a motor drive module; 30-a switch assembly; 40-a control unit; 50-an indication circuit; 60-a charge wake-up module; 70-cup body; 80-a cup cover; 90-machine base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Fig. 3 is a block diagram of a food processor according to an exemplary embodiment of the present invention, and as shown in fig. 3, the food processor according to this embodiment may include: the power-on switch comprises a control unit 40, a switch assembly 30, a first component and a second component, wherein the first component and the second component are detachably connected, the switch assembly 30 is connected to a switch loop of the control unit 40, and the first component and the second component are matched in place to trigger the switch assembly to enable the control unit 40 to be powered on.

In this embodiment, the switch assembly is used as a key for switching on and off the power outside the control unit, and the switch assembly can be directly connected to the control unit, so that the switching on and off of the control unit can be realized through the switch assembly. When the switch assembly is triggered, the control unit is powered on; when the switch assembly is not triggered, the control unit is not powered.

In this embodiment, the switch assembly is activated or not activated by the cooperation of the removably coupled first and second components. The first part and the second part can be a machine base and a cup body respectively, when the cup body is installed on the machine base in place, the switch assembly is triggered and closed, and therefore the control unit is powered on. Or the first component and the second component can be a cup body and a cup cover respectively, when the cup cover covers the cup body, the switch component is triggered and closed, so that the control unit is powered on.

The control Unit may include a main control chip, and the main control chip may be a single chip microcomputer (MCU for short).

The embodiment of the utility model provides a food processor, switch module are connected to the control unit switch return circuit in, realize the power-on and power-off of control unit through the switch module of a peripheral hardware to reduce the consumption of control unit, realize the low-power consumption problem, need not to set up the low-power consumption circuit of hardware simultaneously, reduce components and parts quantity, reduce cost; the number of components is reduced, and the size area of the circuit board can be reduced; the miniaturized circuit board can reduce the size of the whole machine and realize the miniaturization of the food processor.

In an exemplary embodiment of the present invention, fig. 4 is a schematic circuit diagram of a food processor according to an exemplary embodiment of the present invention, as shown in fig. 4, the switch module S1 is connected between the power VCC and the power pin VDD of the control unit U2.

In this embodiment, the switch module can be set up between the power pin of power and the control unit, in other words, the switch module is connected in series with the power pin of the control unit, and when the control unit is powered on and off, the control unit can be powered on when the switch module is closed, so that the control unit can be prevented from being in a sleep state for a long time, and the occurrence of crash can be avoided.

In an example, fig. 5 is a block diagram of a food processor according to an exemplary embodiment of the present invention, and fig. 6 is a schematic circuit diagram of a food processor according to an exemplary embodiment of the present invention, as shown in fig. 5 and 6, the food processor may further include a power circuit 10 for supplying power to the control unit 40, the switch assembly 30 is connected between the power circuit 10 and a power pin of the control unit 40, and the switch assembly 30 is closed, so that the power circuit 10 supplies power to the control unit 40.

It will be appreciated that the indicator circuit may be directly driven/powered by the control unit 40 as shown in figure 13.

In this embodiment, a switch module may be disposed between the power circuit and the control unit to control the power-on and power-off of the control unit, thereby reducing the power consumption of the control unit and achieving the low power consumption problem.

As shown in fig. 6, one end of the switch module S1 is connected to VCC of the power circuit, the other end of the switch module S1 is connected to the power pin VDD of the control unit, and the control unit can be powered up only when the switch module S1 is triggered to close; if the switch assembly S1 is not triggered to open, the control unit is in a power-off state.

In one example, the power circuit may include a battery assembly BT 1. In this embodiment, the present invention is applicable to a portable food processor, such as a portable juicer, and the portable food processor can be powered by the battery pack.

In one example, the power circuit may further include a charging port, which may be adapted for use with portable food processors and conventional food processors, and may be powered by the battery assembly and the charging port.

The embodiment of the utility model provides a food preparation machine, during the switch module cluster goes into the power pin of the control unit, when the control unit circular telegram, the control unit can go up the electricity when the switch module is closed, can avoid the control unit to be in sleep state for a long time to avoid the emergence of dying.

In an exemplary embodiment of the present invention, the first component may be a base, the second component may be a cup, and a switch assembly is disposed at a position on the base for mounting the cup;

the cup body is installed in place, and the cup body triggers the switch assembly to close the switch assembly; or the installation end of the cup body is provided with a trigger piece, the cup body is installed in place, and the trigger piece triggers the switch assembly to close the switch assembly.

In this embodiment, the switch assembly may be triggered by the cup being mounted in place or screwed in place to power up the control unit. When the cup body is installed in place or screwed, the switch assembly is closed, and the control unit is powered on. When the cup body is not installed in place or is unscrewed, the switch assembly is disconnected, and the control unit is powered off.

This embodiment may be adapted for use with a small or portable food processor, such as a portable juicer, that includes a cup and a base. The base can also be equipped with crushing unit, for example blade or screw rod, and in practical application, the output shaft of motor stretches into the cup, and crushing unit is located the cup and connects on the output shaft of motor, can drive crushing unit after the motor starts and rotate.

In this embodiment, when the cup body is mounted in place or screwed in place, the control unit can be powered on, so that power is saved, safety is guaranteed, and a safety problem caused by the fact that the control unit is powered on when the cup body is not mounted in place can be avoided.

Fig. 7 is a schematic structural diagram of a food processor according to an exemplary embodiment of the present invention, as shown in fig. 7, a switch assembly 30 may be disposed at a position on a base for mounting a cup 70, the cup 70 is mounted or screwed in place, and the cup 70 triggers the switch assembly 30 to close the switch assembly 30; alternatively, the mounting end of the cup 70 is provided with a trigger, and the cup 70 is mounted in place and the trigger triggers the switch assembly 30 to close the switch assembly 30.

In one example, the switch assembly may include a tact switch, the cup being mounted in place, the cup activating the tact switch to cause the tact switch to close. In this embodiment, the cup body is mounted in place or screwed in place, and the mounting end of the cup body triggers the tact switch to close the tact switch.

In this embodiment, the switch component can be a touch switch, and the on-off of the control unit is realized through the touch switch, so that the cost is lowest.

In one example, the switch assembly may include a magnetically controlled switch, and the trigger may be a magnet, the cup being mounted in place, the magnet triggering the magnetically controlled switch to close the magnetically controlled switch. In this embodiment, the installation end of the cup body is provided with a magnet in a matching manner, the cup body is installed in place or screwed in place, and the magnet on the installation end of the cup body triggers the magnetic control switch to close the magnetic control switch.

In this embodiment, the switch component may be a magnetic switch, and the on/off of the control unit is realized through the magnetic switch and a matched magnet, so that the cost is low.

In one example, the switch assembly may include a micro switch, and the trigger may be a pushing device, such as a push rod or a wall of the cup, the cup being mounted in place, the push rod triggering the micro switch to close the micro switch. In the embodiment, the mounting end of the cup wall or the cup body is provided with the push rod in a matching manner, the cup body is mounted in place or screwed in place, and the push rod or the cup wall on the mounting end of the cup body triggers the micro switch to close the micro switch.

In this embodiment, the switch component can be a microswitch, and the on-off of the control unit is realized through the microswitch and the matched pushing device, so that the cost is low.

The embodiment of the utility model provides a food preparation machine, it is applicable in small-size or portable food preparation machine, the control unit can only go up the electricity when the trigger switch subassembly that targets in place is closed in the cup installation, when practicing thrift the power saving, guarantees the security.

In an exemplary embodiment of the present invention, the food processor may further include a base, the cup and the switch assembly are disposed on the base, the cup cover covers the cup, and the cup cover triggers the switch assembly to close the switch assembly.

In this embodiment, the cup cover covers the cup body to trigger the switch assembly, so that the control unit is powered on. When the cup cover covers the cup body, the switch assembly is closed, and the control unit is powered on. When the cup cover is not covered on the cup body, the switch assembly is disconnected, and the control unit is powered off.

This embodiment can be applied to a small or portable food processor including a cup and a lid, and can also be applied to a general food processor including a cup and a lid. The base can also be equipped with crushing unit, for example blade or screw rod, and in practical application, the cup can cooperate with the bowl cover and form the process chamber, and the output shaft of motor stretches into the process chamber, and crushing unit is located the process intracavity and connects on the output shaft of motor, can drive crushing unit after the motor starts and rotate.

In this embodiment, when the cup lid covers the cup body and the trigger switch assembly is closed, the control unit can be powered on, so that the power is saved, the safety is guaranteed, and the safety problem caused by the control unit when the cup lid does not cover the cup body can be avoided.

Fig. 8 is a schematic structural view of a food processor according to an exemplary embodiment of the present invention, fig. 9 is a schematic structural view of the food processor shown in fig. 8, as shown in fig. 8 and 9, a switch assembly may be disposed on the base 90, the cup cover 80 covers the cup body 70, and the cup cover 80 triggers the switch assembly to close the switch assembly; or the installation end of the cup cover 80 is provided with a trigger, the cup cover 80 covers the cup body, and the trigger triggers the switch component to close the switch component.

In one example, the switch assembly may include a tact switch, and a lid covers the cup, the lid triggering the tact switch to close the tact switch. In this embodiment, the cup cover covers the cup body, and the installation end of the cup cover triggers the tact switch to close the tact switch.

In one example, the switch assembly may include a magnetic switch, the trigger may be a magnet, the lid covers the cup, and the magnet triggers the magnetic switch to close the magnetic switch. In this embodiment, the installation end of the cup cover is provided with a magnet in a matching manner, the cup cover covers the cup body, and the magnet on the installation end of the cup cover triggers the magnetic control switch to close the magnetic control switch.

In one example, the switch assembly may include a micro switch, the trigger may be a push rod, the lid covers the cup, and the push rod triggers the micro switch to close the micro switch. In the embodiment, the installation end of the cup cover is provided with the push rod in a matching manner, the cup cover covers the cup body, and the push rod on the installation end of the cup cover triggers the microswitch so as to close the microswitch.

In an example, the switch assembly may be disposed between the cup body and the cup cover, the cup cover covers the cup body, the cup cover triggers the switch assembly to close the switch assembly, and the triggering implementation principle and structure thereof can be seen in detail in the cup body triggering switch assembly of the above embodiments, which is not described in detail in this embodiment.

In an example, for a food processor including a cup body and a cup cover, on the basis of the above embodiments, the cup body may be mounted in place or screwed in place to trigger the switch assembly, and the triggering implementation principle and structure thereof can be seen in detail in the cup body trigger switch assembly of the above embodiments, and the description of this embodiment is omitted.

The embodiment of the utility model provides a food preparation machine, it is applicable in the food preparation machine including cup and bowl cover, when the bowl cover lid fits cup trigger switch subassembly, the control unit could go up the electricity, when practicing thrift the power saving, guarantees the security.

The utility model discloses an example embodiment, food preparation machine can also include the current control circuit, and the current control circuit can be connected with the switch module, and the switch module is closed, and the supply current of current control circuit output is less than 10 mA.

In this embodiment, the switch assembly is a micro switch, a magnetic control switch or a tact switch, so that the control unit is powered on when the switch assembly is closed, thereby reducing the power consumption of the control unit and achieving the problem of low power consumption, and meanwhile, the overcurrent requirement of the switch assemblies such as the micro switch, the magnetic control switch or the tact switch is low, so that the power consumption current in the low power consumption mode can be as low as below 10 mA.

In this embodiment, fig. 10A is the structural schematic diagram of the switch assembly provided by an exemplary embodiment of the present invention, fig. 10B is the structural schematic diagram of the switch assembly provided by an exemplary embodiment of the present invention, and fig. 10C is the structural schematic diagram of the switch assembly provided by an exemplary embodiment of the present invention, as shown in fig. 10A to 10C, the size of the switch assembly is smaller, the area occupied by the control board is smaller, and the miniaturization of the food processor can be realized. Wherein, the micro switch, the magnetic control switch or the tact switch can have the following characteristics:

the main parameters are as follows: the temperature range is-30-70 ℃, the contact resistance is less than or equal to 30M omega, the insulation resistance is more than or equal to 1000M omega, the withstand voltage is 250VAC (50HZ)/MIN, the service life is more than or equal to 200000 times, the actuating force is 250 +/-50 gf, and the rated load is DC12V and 0.5A.

The material is as follows: the plastic part can adopt nylon 66 (red), the pressing handle can be made of nylon 66, the contact piece can be made of brass, the cover plate can be made of an iron cover, and the elastic piece can be made of a stainless steel elastic piece.

In an exemplary embodiment of the present invention, the food processor may further include a switch, the switch is communicated with the control unit, and when the switch is closed, the control unit may perform a corresponding function, such as controlling the motor to rotate or controlling the heating device to heat. Alternatively, when the switch is closed, the switch is used to switch the operation mode of the control unit, and when the control unit is switched to the operation mode, the control unit may perform a corresponding function, such as controlling the motor to rotate or controlling the heating device to heat.

In this embodiment, only when the switch component is triggered, the control unit can be powered on, and after the control unit is powered on, the switch can be operated, so that switching of different operation modes of the control unit can be realized. If the switch component is not triggered, the control unit is in a power-off state no matter whether the switch is pressed down or not, and the switching of different operation modes of the control unit cannot be realized.

As shown in fig. 6, one end of the switch S2 may be in communication with the external interrupt pin 8 of the control unit 40, and the other end is grounded. The switch S2 may be used as an enable/disable button for sleep wake-up of the control unit, and also as an external interrupt trigger for waking up the control unit from a sleep mode or for switching the control unit from an operating mode to a standby mode.

In this embodiment, the operation modes of the control unit may include a sleep mode, a standby mode, a working mode, and the like, the switch may be used as a key for external interrupt and wake-up of the control unit, the switch may be directly connected to the control unit, and the switch may be used to realize mutual switching of the three modes.

In one example, the change-over switch may be a touch switch, and the conversion of the sleep mode, the standby mode and the working mode is realized through the touch switch of the peripheral device, so that the circuit can be simplified, and the cost can be reduced.

The embodiment of the utility model provides a food processor realizes the conversion between the operational mode such as the control unit sleep mode, standby mode and mode through the change over switch of peripheral hardware, and the circuit is simple reliable, and reduce cost.

In an example, to avoid unnecessary power consumption, the control unit of the present embodiment is configured to have the I/O ports in the sleep mode in a high impedance state except for the external interrupt pin 8.

In an example, the switching of the operation mode of the control unit can be realized by using a SLEEP (SLEEP) mode of the control unit itself and an external interrupt wake-up mode of the control unit, so that the power-on self-locking start-up circuit shown in fig. 1 is simplified into a key, i.e., a change-over switch, the circuit is simple and reliable, and the cost can be reduced.

In this embodiment, the control unit may be in the standby mode after being powered on through the SLEEP mode of the control unit itself, and if the control unit has no key operation (i.e., the switch is not triggered) within a preset time (e.g., 5 seconds) in the standby mode, the control unit automatically enters the SLEEP mode.

In the embodiment, the SLEEP mode of the control unit is used for saving power, the control unit does not need to be powered off, the scheme of using a complex power-on self-locking circuit to realize low power consumption is optimized, and the SLEEP mode of the control unit is used to realize low power consumption. Firstly, a hardware low-power circuit is not required to be arranged, the number of components is reduced, and the cost is reduced; the number of components is reduced, the size area of the circuit board can be reduced, and meanwhile, the power consumption current of a low power consumption mode can be reduced to 0.8 uA; thirdly, the miniaturized circuit board can reduce the size of the whole machine and realize the miniaturization of the food processor.

In an example embodiment of the present invention, the operation modes may include a first operation mode and a second operation mode, and the switch is triggered to be closed, so that the control unit is switched from the first operation mode to the second operation mode.

In this embodiment, the conversion between any two operation modes of the control unit can be realized through the peripheral selector switch.

In one example, the first mode of operation may be a sleep mode and the second mode of operation may be a standby mode.

In the embodiment, the conversion between the sleep mode and the standby mode of the control unit can be realized through the peripheral change-over switch, the circuit is simple and reliable, and the cost can be reduced. After the control unit is powered on, the control unit is in a standby mode, and if the change-over switch is not triggered within a preset time (for example, 5 seconds), the control unit automatically enters a sleep mode, so that the control unit is switched from the standby mode to the sleep mode. When the control unit is in the sleep mode, if the change-over switch is triggered within a preset time (for example, 5 seconds), the control unit automatically enters the standby mode, and the control unit is switched from the sleep mode to the standby mode.

In one example, the first mode of operation may be a standby mode and the second mode of operation may be an operational mode.

In the embodiment, the conversion between the standby mode and the working mode of the control unit can be realized through the peripheral selector switch, the circuit is simple and reliable, and the cost can be reduced. After the control unit is powered on, the control unit is in a standby mode, and if the change-over switch is not triggered within a preset time (for example, 5 seconds), the control unit automatically enters a sleep mode, so that the control unit is switched from the standby mode to the sleep mode. When the control unit is in the sleep mode, if the change-over switch is triggered within a preset time (for example, 5 seconds), the control unit automatically enters the standby mode, and the control unit is switched from the sleep mode to the standby mode.

In an exemplary embodiment of the present invention, the operation modes may include a first operation mode, a second operation mode and a third operation mode, and the switch is triggered to be closed by the first trigger mode, so that the control unit is switched from the first operation mode to the second operation mode; the switch is closed by the second triggering mode, so that the control unit is switched from the first operation mode to the third operation mode.

In this embodiment, the change over switch can trigger through different trigger modes, realizes the switching of the multiple running mode of the control unit, and the trigger mode can include single stroke and double click two kinds of trigger modes, and the single stroke is responsible for awakening and ending the control unit to awaken up and end motor operating condition, double click starts the control unit, in order to start motor work. Or, the triggering mode may include a long triggering mode and a short triggering mode, the short triggering mode is responsible for waking up and ending the control unit to wake up and end the working state of the motor, and the long triggering mode starts the control unit to start the motor to work.

In one example, the first operation mode may be a sleep mode, the second operation mode may be a standby mode, and the third operation mode may be an operation mode; the first trigger mode can be single click, and the second trigger mode can be double click.

In the embodiment, the change-over switch can be triggered in a single-click or double-click mode to realize the switching among the standby module, the working mode and the sleep mode of the control unit, the circuit is simple and reliable, the cost can be reduced, and meanwhile, the switching diversification can be realized.

Table 1 is a schematic diagram of switching among a standby module, a working mode, and a sleep mode, and as shown in table 1, the control unit is in the standby mode after being powered on, and if the switch is not triggered within a preset time (for example, 5 seconds), the control unit automatically enters the sleep mode. When the control unit is in the sleep mode, if the change-over switch is triggered by the single-click triggering mode, the control unit automatically enters the standby mode, and the control unit is switched to the standby mode from the sleep mode. When the control unit is in the standby mode, if the change-over switch is triggered by a double-click triggering mode, the control unit automatically enters the working mode, and the control unit is switched to the working mode from the standby mode. When the control unit is in the working mode, if the change-over switch is triggered by the single-click triggering mode, the control unit automatically enters the standby mode, and the control unit is switched from the working mode to the standby mode.

TABLE 1

Current mode	Triggering mode	Switching modes
			Sleep mode	Single click	Standby mode
Standby mode	Double click	Mode of operation
			Mode of operation	Single click	Standby mode

In one example, the first operation mode and the third operation mode may be operation modes, and the second operation mode may be a standby mode; the first triggering mode can be single-click, and the second triggering mode can be double-click.

In this embodiment, the switch may be triggered by a single click or a double click to switch between the standby module and the operating mode of the control unit. As shown in table 1, when the control unit is in the working mode, if the switch is triggered by the single-click triggering manner, the control unit automatically enters the standby mode, so that the control unit is switched from the working mode to the standby mode. When the control unit is in the standby mode, if the change-over switch is triggered by a double-click triggering mode, the control unit automatically enters the working mode, and the control unit is switched to the working mode from the standby mode.

Fig. 11 is a schematic view of an operation mode of a control unit provided by an embodiment of the present invention, and fig. 12 is a flowchart based on the operation mode switching of a food processor provided by an embodiment of the present invention, as shown in fig. 11 and 12, it may specifically include:

s1201: and (5) powering on and starting.

S1202: a standby mode.

S1203: and judging whether the key is pressed within 5 s. If yes, go to S1204; otherwise, S1206 is performed.

In this embodiment, whether the key is pressed means whether the switch is triggered, and when the switch is triggered, the key is pressed; the switch is not triggered, and the key is not pressed.

S1204: it is determined whether to click or double click. If yes, executing S1202; if it is double-click, S1205 is performed.

S1205: and (4) working modes.

S1206: a sleep mode is entered.

S1207: and judging whether the key is pressed down. If yes, go to S1202; otherwise, S1206 is performed.

In this embodiment, the control unit enters the sleep mode after being powered on and standby for 5 seconds, and if the control unit needs to be awakened to the standby mode through an external switch, all functions of the food processor are recovered to be normal. Therefore, the control unit can be awakened from sleep by only slightly touching the selector switch before use, and after the work is finished, the control unit enters a sleep mode to perform low-power-consumption operation, and the power consumption of the low-power-consumption operation is about 0.8uA at normal temperature.

In an example, as shown in fig. 11, the food processor may further include an alarm mode and a charging mode, and the operation mode may be switched to the alarm mode, or the standby mode or the sleep mode may be switched to the charging mode, and the charging mode may refer to the following description of the embodiments, which is not repeated in this embodiment.

In an exemplary embodiment of the present invention, as shown in fig. 5 and 6, the food processor may further include an indication circuit 50, the indication circuit 50 may include at least two indication states, and the indication circuit 50 is connected to the control unit 40 or the power circuit 10 in a time-sharing manner, so that the indication circuit 50 displays the operation mode of the control unit 40 or the charging state of the power circuit 10 in a time-sharing manner.

In this embodiment, the indication circuit 50 may adopt a time sharing technology, and may implement allocation and display of the indication lamp control right in different application scenarios. The port of the indicating circuit is connected to the power circuit and is connected to the IO port of the control unit 40. When the control unit is not powered on, the indicating circuit controls the power circuit, and the indicating circuit is used for displaying the charging state (or called charging mode). When the control unit is powered on and the power supply circuit is not charged, the indicating circuit controls the control unit and is used for displaying the operation mode of the control unit. When the control unit is powered on and the power supply circuit is charged, the control unit switches the port communicated with the indicating circuit into a high-impedance state after acquiring a charging signal of the power supply circuit, and control is given to the power supply circuit, and the indicating circuit is used for displaying the charging state.

In one example, the indicator circuit may include a two-color indicator LED1, which may be, but is not limited to, a red-green indicator. The power circuit 10 may include a power chip U1 and a battery pack BT1, the indicating circuit being in time-sharing communication with the first signal pin of the control unit and the first signal pin of the power chip.

As shown in fig. 6, the ports chrg and stdby of the bi-color indicator LED1 are connected to pin 6 and pin 7 of the power circuit, and the ports chrg and stdby are connected to pin 2 and pin 3 of the control unit. When the control unit is not powered or the power circuit is charging, the ports chrg and stdby of LED1 are connected to the post-power circuit and LED1 indicates the current state of charge by a change in the level of pin 6 and pin 7 of the power circuit.

Table 2 is a charging status indicator table for LED1, where as shown in table 2, the charging status can be displayed by different combinations of red and green lights, and may include: the battery is charged, fully charged, failed or no battery is connected (used at TEMP port of U1) and BAT port of U1 is connected to 10uF capacitor, no battery is connected (TEMP port of U1 is GND).

TABLE 2

When the control unit is powered on and the power supply circuit is not charging, the ports chrg and stdby of LED1 communicate with the control unit and LED1 indicates the operating mode of the control unit by a change in the level of pin 2 and pin 3 of the control unit. The method may include, but is not limited to, turning on the green light, turning off the red light to indicate that the current mode of the control unit is the working mode, turning on the red light, turning off the green light to indicate that the current mode of the control unit is the standby mode, and turning off the red light and turning off the green light to indicate that the current mode of the control unit is the sleep mode.

In one example, when the control unit is in the operating mode, that is, when the food processor is operating normally, if an abnormality occurs, which may include that the cup body is not mounted in place, the cup cover is not covered in place, or the motor fails, the control unit may be switched to the alarm mode. In this embodiment, the alarm mode may be displayed by the indication circuit to remind the user that the food processor is out of order, for example, a green light may be turned on, and a red light may flash to indicate that the current mode of the control unit is the alarm mode.

The embodiment of the utility model provides a food preparation machine, indicating circuit can adopt the timesharing sharing technique, realizes the operation mode of the control unit and the timesharing of power supply circuit charged state shows, through the multiplexing indicating circuit of timesharing, can simplify circuit structure, and reduce components and parts quantity, and the simple reliable with low costs of circuit, and can realize food preparation machine's miniaturization.

In an exemplary embodiment of the present invention, the food processor may further include a charging wake-up module 60 for controlling the indication circuit to communicate in a time-sharing manner, the charging wake-up module 60 is respectively connected to the control unit 40 and the power circuit 10, the power circuit 10 charges, the control unit 40 receives a charging signal through the charging wake-up module 60, and a signal pin of the control unit 40 connected to the indication circuit 50 is in a high-impedance state, so that the indication circuit 50 is switched from communicating to the control unit 40 to communicating to the power circuit 10.

In this embodiment, the time-sharing display of the indication circuit 50 can be realized by the charging wake-up module 60, and the control right of the time-sharing display of the indication circuit 50 is switched.

In one example, as shown in fig. 6, the charge wakeup module 60 may include a transistor Q3, a base of the transistor Q3 is in communication with the chip select signal pin 8 of the power chip U1, a collector of the transistor Q3 is in communication with the second signal pin 4 of the control unit, and an emitter of the transistor Q3 is grounded.

In this embodiment, the charge wake-up module 60 has functions of charge wake-up and charge protection, and when the control unit is powered on and the power circuit is not charged, the indication circuit is communicated with the control unit to display the operation mode of the control unit. The charging wake-up module always monitors the level output by the pin 8 of the power chip U1, when the power circuit is charged, the pin 8 of the power chip U1 outputs a high level (for example, 5V), at this time, the collector of the Q3 in the charging wake-up module 60 outputs a low level, the wake-up control unit 40, the pin 2 and the pin 3, which are used for being connected with the indicating circuit, of the control unit 40 are set to a high-impedance state, and the control right of the indicating circuit is handed to the power circuit 10.

In this embodiment, when the food processor is in use, for example, when the motor is in operation, if the user performs a charging operation, the charging wake-up module can perform an instant detection, and the charging operation of the user can be quickly detected by the charging wake-up module, so that the food processor is switched from a working state to a charging state, and the operation of the motor and the like is stopped, thereby protecting the electronic control system of the food processor.

The embodiment of the utility model provides a food preparation machine, the accessible charges and awakens up whether the module short-term test power supply circuit charges, when power supply circuit charges, switches the control right of indicating circuit to power supply circuit from the control unit, makes food preparation machine switch to charged state from operating condition, can protect food preparation machine's electrical system.

In an exemplary embodiment of the present invention, as shown in fig. 6 and 7, the food processor may further include a motor driving module 20, and after the control unit 40 is powered on, the motor driving module 20 may control the start or stop of the motor.

In this embodiment, the motor driving module 20 may be implemented by using a two-way switch device to control the executing component, as shown in fig. 6, the switch device of the motor driving circuit may use a two-way NMOS transistor, a first Metal oxide Semiconductor field effect transistor (MOS transistor for short) Q1 and a second MOS transistor Q2, and N-channel MOS transistors Q1 and Q2 are connected in series in the motor loop as a switch for controlling the operation and the turn-off of the motor.

The positive pole of the motor is connected with the positive pole B + of the battery, the negative pole of the motor is connected with the drain of the Q1, the drain of the Q2 is connected with the source of the Q1, the first control port (pin 6) of the control unit outputs the grid of the driving signals motor1 to Q1, and the second control port (pin 5) of the control unit outputs the grid of the driving signals motor2 to Q2.

When the driving signal motor1 is at a high level, the drain and source of the Q1 are turned on; when the driving signal motor1 is low, the drain and source of Q1 are disconnected.

When the driving signal motor2 is at a high level, the drain and source of the Q2 are turned on; when the driving signal motor2 is low, the drain and source of Q2 are disconnected.

The embodiment of the utility model provides a food processor compares in single MOS pipe drive control circuit, establishes ties at the motor return circuit through two N channel MOS pipes, only switches on simultaneously when two N channel MOS pipes, and the motor just can work.

In an alternative embodiment, the switching device of the motor driving circuit may be controlled by one PMOS transistor and one NMOS transistor, and may be connected in series to the motor circuit in a PMOS + NMOS transistor combination manner instead of the dual NMOS transistor scheme of the above embodiment. The P-channel MOS tube can be connected between the positive pole of the power circuit and the motor in series, and the N-channel MOS tube can be connected between the motor and the grounding end in series. The specific implementation principle is similar to that of the dual NMOS transistor scheme, and this embodiment is not described again.

In an example, as shown in fig. 6, a sampling resistor R13 may be disposed in the motor power supply circuit, and the sampling resistor R13 is used to detect the motor circuit current, so as to be used as a basis for determining whether the MOS transistor fails. When at least one MOS transistor is an N-channel MOS transistor, the sampling resistor R13 may be connected in series between the source of the bottom N-channel MOS transistor and the ground terminal, where the bottom N-channel MOS transistor is an N-channel MOS transistor close to the ground terminal. As shown in fig. 6, the bottom N-channel MOS transistor may be Q2, the source of Q2 is connected to one end of a resistor R13, and the other end of the resistor R13 is grounded.

In this embodiment, when all MOS transistors are turned on, the working current of the motor will generate a voltage drop across the sampling resistor R13, and the voltage drop is proportional to the current, i.e. there is a current in the circuit. When one MOS tube is disconnected, the working current of the motor does not generate voltage drop on the sampling resistor R13, namely, no current flows in the circuit. The voltage drop signal generated on the sampling resistor R13 can be transmitted to the sampling port of the main control circuit through the current limiting resistor R11.

In this embodiment, the sampling pin (pin 11) of the control unit can control the disconnection of a single MOS transistor, and whether a voltage drop is generated on the sampling resistor is detected through the sampling signal AD _ motor, so that the failure detection of the single MOS transistor is realized, the working condition of the MOS transistor is detected, and the potential working hazard is eliminated. Specifically, when at least one MOS transistor is disconnected and there is a voltage drop across the sampling resistor, the main control circuit may determine that the disconnected semiconductor switch is failed.

In this embodiment, if it damages to detect there is the MOS pipe, then close still can normally work the MOS pipe immediately and make the complete machine stop work, also promptly, in many MOS pipe control circuit, even there is the risk of single MOS pipe inefficacy, also can control the shutoff of all the other MOS pipes through detecting the MOS pipe inefficacy, prevent that single MOS pipe inefficacy and have motor drive blade or screw rod pivoted wounded's risk.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A food processor, comprising: the switch assembly is connected to a switch loop of the control unit, and the first component and the second component are matched in place and then trigger the switch assembly to enable the control unit to be powered on.

2. The food processor of claim 1, wherein the switch assembly is connected between a power supply and a power pin of the control unit.

3. The food processor of claim 1, further comprising a current control circuit coupled to the switch assembly, the switch assembly being closed, the current control circuit outputting a supply current of less than 10 mA.

4. The food processor of claim 1, wherein the first component is a base and the second component is a cup, the base having the switch assembly disposed thereon at a location for mounting the cup;

or,

5. The food processor of claim 4, wherein the switch assembly includes a tact switch, the cup being mounted in position, the cup activating the tact switch to close the tact switch;

or,

6. The food processor of claim 1, wherein the first component is a cup and the second component is a lid that cooperates with the cup to form a processing chamber, the lid covering the cup to close the switch assembly.

7. The food processor of claim 6, wherein the switch assembly is disposed between the cup and the lid, the lid covering the cup, the lid activating the switch assembly to close the switch assembly.

8. The food processor of claim 6, further comprising a base, the cup and the switch assembly being disposed on the base, the cup being covered by the lid, the lid triggering the switch assembly to close the switch assembly.

9. The food processor of claim 1, further comprising a power circuit for powering the control unit, the switch assembly being connected between the power circuit and a power pin of the control unit, the switch assembly being closed such that the power circuit powers the control unit.

10. The food processor of claim 9, wherein the power circuit includes a battery assembly.