CN214157134U

CN214157134U - Food processing machine

Info

Publication number: CN214157134U
Application number: CN202022383601.9U
Authority: CN
Inventors: 王旭宁; 杜春年
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-09-10
Anticipated expiration: 2030-10-23

Abstract

The embodiment of the utility model discloses food preparation machine, include: the device comprises a power circuit, a control unit and a sliding switch assembly; the power circuit is connected with the sliding switch assembly and the control unit, the sliding switch assembly is connected with the control unit, the sliding switch assembly comprises a turn-off area used for turning off a power supply and a resistance-changing area used for electrifying, and an insulating layer is arranged in the turn-off area. The embodiment of the utility model discloses food preparation machine through setting up the circular telegram or the outage of slide switch subassembly in order to realize the control unit, can realize low-power consumption and reduce cost.

Description

Food processing machine

Technical Field

The utility model relates to a but not only be limited to the kitchen appliances field, more specifically relates to a food preparation machine.

Background

With the continuous upgrading of consumption and the continuous younger consumption groups, the portable electronic equipment is popular. The field of small appliances is also gradually advancing to portable and young.

At present, portable products generally have the characteristics of lithium battery power supply, small size and the like. However, in the existing scheme, the power on and off of the single chip microcomputer are realized by a triode or a Metal Oxide Semiconductor (MOS) transistor, and the number of used devices is large and the cost is high.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a food processor, include: the device comprises a power circuit, a control unit and a sliding switch assembly;

the power circuit is connected with the sliding switch assembly and the control unit, the sliding switch assembly is connected with the control unit, the sliding switch assembly comprises a turn-off area used for turning off a power supply and a resistance-changing area used for electrifying, and the turn-off area is provided with an insulating layer.

In one example, the sliding switch assembly includes: a first pin, a second pin and a third pin;

the sliding switch assembly slides to the variable resistance region, and the second pin and the third pin are conducted to electrify the control unit;

the sliding switch assembly slides to the turn-off area, the first pin and the second pin are disconnected, and the second pin and the third pin are disconnected, so that the control unit is powered off.

In one example, the food processor further comprises: the reset circuit is used for resetting the control unit, and the output end of the reset circuit is connected to a reset pin of the control unit.

In one example, the input end of the reset circuit is connected with the power supply circuit, the reset circuit outputs a reset signal when receiving the validity of a flag signal, and the reset signal is used for resetting the control unit;

the flag signal is effective to indicate that the power circuit is connected with the power supply, and the flag signal is ineffective to indicate that the power circuit is not connected with the power supply.

In one example, the power circuit includes a charging port, the food processor further comprising: the charging management module is used for acquiring whether a charging port is connected with a power supply to output the marking signal, an acquisition port of the charging management module is connected to the charging port, and an output port of the charging management module is connected to the input end of the reset circuit.

In one example, the slide switch assembly is connected to an external interrupt pin of the control unit;

the control unit comprises a sleep mode and a working mode, wherein the sleep mode is that the sliding switch assembly slides to the turn-off area so as to enable an input signal of the external interrupt pin to be at a high level;

the working mode is that the sliding switch component slides from the turn-off region to the variable resistance region, so that the input signal of the external interrupt pin jumps from high level to low level.

In one example, the sliding switch assembly includes: a third pin, the food processor further comprising: and the first signal processing circuit is used for connecting the third pin of the sliding switch assembly to a high level when the sliding switch assembly slides to the turn-off area, and the first signal processing circuit is connected between the third pin of the sliding switch assembly and an external interrupt pin of the control unit.

In one example, the first signal processing circuit includes a first resistor, one end of the first resistor is respectively connected to the third pin of the sliding switch assembly and the external interrupt pin of the control unit, and the other end of the first resistor is connected to the operating voltage VDD of the control unit.

In one example, the sliding switch assembly includes: the sliding switch assembly slides to the variable resistance region, and a variable on-resistance R23 exists between the second pin and the third pin;

the third pin of the sliding switch assembly is also connected to the sampling pin of the control unit;

the sliding switch assembly slides to the variable resistance region, a third pin of the sliding switch assembly outputs a voltage signal to a sampling pin of the control unit, the voltage signal is a voltage on the on-resistance R23, and the voltage signal is used for determining a motor gear.

In one example, the sliding switch assembly includes: a first pin, the power circuit comprising: the battery assembly, the power switch circuit and the second signal processing circuit are used for connecting a first pin of the sliding switch assembly to a high level when the sliding switch assembly slides to the turn-off area;

the second signal processing circuit is connected between the first pin of the sliding switch assembly and one end of the power switch circuit, and the other end of the power switch circuit is connected to the battery assembly;

the sliding switch assembly slides to the turn-off area, the first pin of the sliding switch assembly is pulled high by the second signal processing circuit, and the power switch circuit is turned off, so that the battery assembly stops supplying power to the control unit;

the sliding switch assembly slides from the turn-off area to the variable resistance area, a first pin of the sliding switch assembly outputs a low level, and the power switch circuit is switched on, so that the battery assembly supplies power to the control unit.

The utility model discloses at least one embodiment provides a food processor compares with prior art, has following beneficial effect: through setting up the power-on or outage of slide switch subassembly in order to realize the control unit, can avoid the control unit to be in the on-state always, save the electric quantity, realize low-power consumption. And the power-on or power-off of the control unit can be realized by adopting the variable resistance area and the turn-off area of the sliding switch assembly, a plurality of devices such as triodes or MOS tubes are not required to be arranged, and the cost can be reduced.

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

1. through setting up reset circuit and slide switch subassembly, when the slide switch subassembly slides to the varistor region, can reset when power supply circuit inserts the power, reset MCU, avoid MCU dead halt or be in the sleep mode for a long time.

2. The third pin of the sliding switch assembly is connected to the external interrupt pin of the control unit, so that the control unit can enter the sleep mode through the sliding switch assembly, and the control unit can be awakened from the sleep mode to enter the working mode.

3. The third pin of the sliding switch assembly is connected to the sampling pin of the control unit, gear selection of the motor after power-on is achieved through the sliding switch assembly, and speed regulation of the motor is achieved.

4. The first pin of the sliding switch assembly can be connected to a power circuit, so that the power on or power off of the control unit can be realized through the sliding switch assembly.

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 block diagram of a food processor according to an embodiment of the present invention;

fig. 2 is a schematic view of a slide switch assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of the sliding switch assembly sliding to the OFF region;

FIG. 4 is a schematic view of the sliding switch assembly sliding to the varistor region;

FIG. 5 is a schematic circuit diagram of a food processor according to an exemplary embodiment of the present invention;

fig. 6 is a schematic circuit diagram of a charging management module according to an embodiment of the present invention;

fig. 7A is a schematic circuit diagram of a power circuit according to an exemplary embodiment of the present invention;

fig. 7B is a schematic circuit diagram of a sliding switch assembly according to an exemplary embodiment of the present invention;

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

FIG. 9 is a schematic diagram of a rechargeable food processor according to an exemplary embodiment of the present invention;

fig. 10 is a schematic diagram of a power circuit according to an exemplary embodiment of the present invention;

FIG. 11 is a schematic view of a food processor according to an exemplary embodiment of the present invention;

fig. 12 is a schematic diagram of a power circuit according to an exemplary embodiment of the present invention.

Description of reference numerals:

firstly, a juicing component; ② a host; ③ a slag receiving cup; fourthly, the juice receiving cup; fifthly, a motor; sixthly, an output shaft of the motor; seventhly, a circuit board; eighthly, a feeding channel; 11-a power supply circuit; 12-a control unit; 13-a sliding switch assembly; 14-a reset circuit; 15-speed regulating circuit.

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.

Example one

Fig. 1 is a block diagram of a food processor according to an embodiment of the present invention, and fig. 2 is a schematic diagram of a sliding switch assembly according to an embodiment of the present invention, as shown in fig. 1 and fig. 2, the food processor according to this embodiment may include: a power supply circuit 11, a control unit 12, and a slide switch assembly 13; the power circuit 11 is connected with the sliding switch assembly 13 and the control unit 12, the sliding switch assembly 13 is connected with the control unit 12, the sliding switch assembly 13 can comprise a turn-off area for turning off the power supply and a variable resistance area for electrifying, and the turn-off area is provided with an insulating layer L.

In this embodiment, the sliding switch assembly is arranged between the power circuit and the circuit of the control unit to realize power on or power off of the control unit, the sliding switch assembly slides to the turn-off region (arrow a in fig. 2), and due to the insulating layer in the turn-off region, the sliding switch assembly is in the off state, and the power circuit cannot supply power to the control unit, so that the control unit is powered off. The sliding switch assembly slides to the resistance-changing area (arrow B in fig. 2), the sliding switch assembly is in a connected state, and the power circuit supplies power to the control unit so as to electrify (power on) the control unit.

Wherein, the electrifying condition of the variable resistance region can comprise at least one of the following conditions: the control unit is powered on, the control unit is awakened, the control unit is reset or the gear of the motor is selected after being powered on (namely, the speed of the motor is regulated).

In fig. 2, the length of the insulating layer is 4.0cm, and the distance between the central point of the turn-off region and the central point of the varistor region is 10 cm.

In an example, the control Unit may be a single chip Microcomputer (MCU).

The embodiment of the utility model provides a food processor through setting up the circular telegram or the outage of slide switch subassembly in order to realize the control unit, can avoid the control unit to be in the circular telegram state always, saves the electric quantity, realizes the low-power consumption. And the power-on or power-off of the control unit can be realized by adopting the variable resistance area and the turn-off area of the sliding switch assembly, a plurality of devices such as triodes or MOS tubes are not required to be arranged, and the cost can be reduced.

In an exemplary embodiment of the present invention, fig. 3 is a schematic diagram of the sliding switch assembly sliding to the turn-off region, and fig. 4 is a schematic diagram of the sliding switch assembly sliding to the varistor region, as shown in fig. 3 and 4, the sliding switch assembly may include: a first pin 1 (may be referred to as a pin 1 for short), a second pin 2 (may be referred to as a pin 2 for short), and a third pin 3 (may be referred to as a pin 3 for short); the sliding switch assembly slides to the variable resistance area, and the second pin 2 and the third pin 3 are conducted to electrify the control unit; the sliding switch assembly slides to the turn-off area, the first pin and the second pin are disconnected, and the second pin and the third pin are disconnected, so that the control unit is powered off.

When the second pin 2 and the third pin 3 are conducted, a variable on-resistance R23 exists between the second pin and the third pin;

in this embodiment, the sliding switch assembly may be provided with a sliding handle, and the sliding of the sliding switch assembly is achieved through the sliding handle. When the slider bar is in the off region,

legs

1 and 2 of the slider switch assembly are off and

legs

2 and 3 of the slider switch assembly are off. When the sliding handle is positioned in the resistance-changing area, the 2 feet and the 3 feet of the sliding switch component are conducted. In addition, due to the fact that the sliding handle is provided with the conducting wire, when the sliding handle is located in the resistance changing area, the 1 pin and the 2 pin of the sliding switch assembly are conducted in a short circuit mode, and the sum of the resistance value between the 1 pin and the 2 pin and the resistance value between the 2 pin and the 3 pin is the maximum resistance value of the whole sliding switch assembly.

In an exemplary embodiment of the present invention, fig. 5 is a schematic circuit diagram of a food processor according to an exemplary embodiment of the present invention, as shown in fig. 5, the food processor may further include: a reset circuit 14 for resetting the control unit, the output of the reset circuit being connected to the reset pin of the control unit.

In fig. 5, the control unit may be a single chip microcomputer (MCU for short) U1, pin 4 of the MCU may be an external reset pin, and the reset circuit may be connected to the external reset pin of the MCU to reset the MCU.

In one example, the reset circuit may be a reset key that is manually operated by a user to reset the control unit.

In one example, the input end of the reset circuit is connected with the power circuit, the reset circuit outputs a reset signal when receiving the validity of the mark signal, and the reset signal is used for resetting the control unit; the flag signal is effective to indicate that the power circuit is connected with the power supply, and the flag signal is ineffective to indicate that the power circuit is not connected with the power supply.

In this embodiment, as shown in fig. 5, the reset circuit may be a capacitor C3, the capacitor C3 is used to transmit a flag signal indicating whether the power supply circuit is powered on to the control unit, and the control unit may be reset when the power supply circuit is powered on.

In one example, the power circuit may include a charging port and a battery assembly, with a sliding switch assembly RP1 disposed between the battery assembly and the control unit to control the battery assembly to supply or remove power to the control unit. Wherein, the battery pack may be a lithium battery. The charging port is used for being connected with a power supply, and the charging port charges the battery pack after being connected with the power supply.

In practical applications, there are two cases: case 1: because no switch for controlling power on and off is arranged between the power circuit and the control unit, if the sliding switch component of the embodiment is not arranged, the power circuit can always supply power to the MCU. Case 2: although the sliding switch assembly is arranged between the battery assembly and the control unit in the embodiment, the sliding switch assembly is not arranged between the charging port and the control unit, and the charging port can directly supply power to the MCU after being connected to the power supply.

For the above two situations, if the MCU is halted, the MCU cannot be powered off by the sliding switch component RP1, and the MCU will always be in the power-on state. In this embodiment, the sliding switch assembly slides to the varistor region to realize the reset control unit. The MCU power supply circuit comprises a power supply circuit, a sliding switch assembly, a reset circuit, a reset pin and a reset pin, wherein the reset circuit and the sliding switch assembly are arranged through the accessible, the sliding switch assembly is connected to the variable resistance region through the reset circuit, the reset pin can be reset when a charging port in the power supply circuit is connected to a power supply, the MCU is reset and restarted, and the MCU is prevented from being halted or being in a sleep mode for a long time.

In one example, the food processor may further comprise: the charging management module is used for acquiring whether the charging port is connected with a power supply to output a sign signal Chrg, an acquisition port of the charging management module is connected to the charging port, and an output port of the charging management module is connected to the input end of the reset circuit; the flag signal is valid and indicates that the charging port is connected with the power supply, and the flag signal is invalid and indicates that the charging port is not connected with the power supply.

In this embodiment, the flag signal Chrg is a charging detection signal of the battery assembly, and when the sliding switch assembly slides to the variable resistance region and the battery assembly is being charged, the flag signal Chrg is active (for example, at a low level); when the movable switch assembly slides to the off region, or the battery assembly is not charged, the flag signal Chrg is inactive (e.g., high).

When the charging port USB is connected with a power supply, the battery pack starts to be charged, the sign signal Chrg is changed from invalid to valid, at the moment, the reset signal received by the MCU pin 4 is changed from invalid to valid, and the MCU is reset and restarted. When charging is finished, after the USB of the charging port is unplugged, the sign signal Chrg is invalid, the reset signal received by the MCU pin 4 is invalid, and the MCU can enter a sleep mode.

In this embodiment, the implementation principle and structure of the reset circuit are the same as those in the prior art, and this embodiment is not limited and described herein.

In this embodiment, the charging management module may obtain whether the charging port is connected to the power supply in the following manner:

the first implementation mode comprises the following steps: the charging management module may be a dedicated charging management chip, and the charging management and the charging detection are implemented by the dedicated charging management chip, and the implementation principle of the dedicated charging management chip is the same as that of the prior art, which is not limited and described herein.

The second implementation mode comprises the following steps: fig. 6 is a schematic circuit diagram of a charging management module according to an embodiment of the present invention, as shown in fig. 6, the charging management module may include a charging detection unit and a resistor R4, one end of the resistor R4 is connected to the positive power supply, and the other end of the resistor R4 is connected to a signal acquisition port of the charging detection unit; the voltage across the resistor R4 is at a first level (high) during charging and the voltage across the resistor R4 is at a second level (low) during non-charging.

In this embodiment, the peripheral resistor R4 and the charging detection unit may form a charging detection circuit, and the charging detection unit may be an MCU. When charging, Charge _ F outputs high level; when not charged, Charge _ F outputs a low level. The charging detection unit can judge that the charging port is connected with the power supply or is not connected with the power supply by detecting the Charge _ F level. IN fig. 6, IN-5V is the voltage input to the charging port J1.

In an example, as shown in fig. 5, the control unit may further include a first detection pin 13 and a second detection pin 14 for detecting a charging state of the battery, and the output port of the charging management module is further connected to the first detection pin 13 and the second detection pin 14 of the control unit, so that the control unit obtains the charging state of the battery assembly through the first detection pin 13 and the second detection pin 14, where the charging state may include that the battery is fully charged, the battery is not fully charged, the battery is being charged, the battery is not being charged, and the like.

In sleep mode, both the Chrg and Stdby signals are high if the battery assembly is not being charged. If USB access is detected, the Stdby signal goes low when the battery is fully charged and Chrg remains high. If USB access is detected, Chrg is low when the battery is not full and Stdby remains high. If USB access is detected, both the Chrg and Stdby signals are low when the battery is charging.

The singlechip can detect the level states of the electricity Chrg and Stdby, and if the signal levels of the Chrg and the Stdby are both low, the singlechip is immediately awakened from the sleep mode to enter a normal working mode, so that the charging function can normally run in the sleep mode.

The embodiment of the utility model provides a food processor, through setting up reset circuit and slide switch subassembly, the slide switch subassembly slides when becoming resistance region, can reset when power supply circuit inserts the power, resets MCU, avoids MCU to crash or be in the dormant mode for a long time.

In an exemplary embodiment of the present invention, the third pin of the sliding switch assembly is connected to the external interrupt pin of the control unit; the control unit comprises a sleep mode and a working mode, wherein the sleep mode is that the sliding switch assembly slides to a turn-off area so as to enable an input signal of an external interrupt pin to be at a high level; the working mode is that the sliding switch component slides from the turn-off area to the variable resistance area, so that the input signal of the external interrupt pin jumps from high level to low level.

In this embodiment, when the sliding switch assembly slides to the varistor area, the control unit may be awakened, or the sleep mode and the working mode may be switched.

In one example, as shown in fig. 5, the third pin of the sliding switch assembly may be connected to an external interrupt pin 10 of the control unit, and the control unit may be determined to be in the sleep mode or the operating mode by a voltage signal Speed on the third pin of the sliding switch assembly.

When the sliding switch component slides to the turn-off region, because the turn-off region has the existence of the insulating layer, the resistance between the

pins

2 and 3 of the sliding switch component is infinite, and at the moment, the input voltage of the pin 10 of the MCU is at a high level, so that the MCU enters a sleep mode, the output is closed, and the working current in the sleep state is reduced.

When the sliding switch assembly slides to the variable resistance region, the variable on-resistance R23 exists between the pin 2 and the pin 3 of the sliding switch assembly, at this time, the input voltage of the MCU pin 10 jumps from a high level to a low level, the MCU is awakened from the sleep mode by the level inversion of the MCU pin 10, and the MCU enters the working mode, namely the MCU is switched from the sleep mode to the working mode.

In one example, the food processor may further comprise: and the first signal processing circuit is used for connecting the third pin of the sliding switch assembly to a high-level first signal processing circuit when the sliding switch assembly slides to the turn-off region, and the first signal processing circuit is connected between the third pin of the sliding switch assembly and an external interrupt pin of the control unit.

In this embodiment, the first signal processing circuit is arranged between the pin 10 of the MCU and the third pin of the sliding switch assembly, and the first signal processing circuit is arranged to connect the third pin of the sliding switch assembly to a high level when the sliding switch assembly slides to the off region.

In one example, as shown in fig. 5, the first signal processing circuit may include a first resistor R5, one end of the first resistor R5 is connected to the third pin of the sliding switch assembly and the external interrupt pin of the control unit, respectively, and the other end of the first resistor R5 is connected to the operating voltage VDD of the control unit.

In this embodiment, as shown in fig. 5, the first signal processing circuit may include a pull-up resistor R5, the RP1 is a sliding switch component, and the third pin of the RP1 is connected to the operating voltage VDD of the control unit through the pull-up resistor R5.

When RP1 is slid to the off region, the resistance between

pins

2 and 3 of the sliding switch assembly, R23, is infinite and much greater than the R5 resistance because of the presence of the insulating layer in the off region. Through the voltage division of the resistors R5 and R23, the voltage signal Speed of the MCU pin 10 is at a high level, the MCU enters a sleep mode, the output is turned off, and the working current in the sleep state is reduced.

When the RP1 slides to the varistor region, the resistor R23 between the pin 2 and the pin 3 of the RP1 is much smaller than the resistor R2, the voltage is divided by the resistor R2 and the resistor R23, the voltage signal Speed of the MCU pin 10 is at a low level, and the MCU pin 10 is turned over to wake up the single chip from the sleep mode and enter the operating mode.

In the embodiment, after the working time of the food processor is over, the single chip microcomputer can enter the sleep mode through the sliding switch assembly, the whole machine has very low standby power consumption in the sleep mode, even if the food processor is started by mistake or unattended for a long time, the electric quantity of the battery is not exhausted, and the service life of the whole machine is prolonged.

In addition, in the sleep mode, the single chip microcomputer can be switched to the working mode from the sleep mode through the sliding switch assembly, or the food processor is restarted to continue working through the reset circuit in the embodiment, so that the single chip microcomputer can be prevented from being halted or being in the sleep mode for a long time.

The embodiment of the utility model provides a food processor is connected to the outside interrupt pin of the control unit through the third pin of slide switch subassembly, has realized making the control unit get into the sleep mode through the slide switch subassembly to and make the control unit awaken up the state that gets into operating mode from the sleep mode and switch.

In an exemplary embodiment of the present invention, as shown in fig. 5, the third pin of the sliding switch assembly is further connected to the sampling pin 9 of the control unit; the sliding switch assembly slides to the variable resistance region, a third pin of the sliding switch assembly outputs a voltage signal to a sampling pin 9 of the control unit, the voltage signal is the voltage on the on-resistance R23, and the voltage signal is used for determining the gear position of the motor.

In this embodiment, the slide switch subassembly slides to the varistor area and can realize that the back motor gear of going up selects, and the slide switch subassembly plays gear selection, starts and closes the effect, and the control unit accessible detects slide switch subassembly output signal and controls the motor gear and switches.

When the sliding switch component RP1 slides to the varistor region, a variable resistor R23 (not shown in the figure) exists between the second pin and the third pin, and the resistor R23 and the voltage dividing resistor R5 divide the VDD voltage to obtain a voltage signal Speed. The voltage signal Speed is connected to an AD detection port of the singlechip, and stepless and step-by-step Speed regulation of the motor can be realized by establishing a functional relation between the AD value of the Speed signal and the duty ratio of the motor driving signal PWM.

In one example, the step speed may be divided into 5-speed speeds, and each speed and corresponding PWM duty cycle may correspond to the following table 1.

TABLE 1

Gear position	PWM duty cycle
		1	20％
2	40％
		3	60％
4	80％
		5	100％

In this embodiment, the voltage signal Speed can be obtained by dividing VDD by resistors R23 and R5, and thus has a linear relationship with VDD. VDD can be selected as a reference voltage in voltage AD sampling, the sampling AD value is only related to the resistance ratio of the resistors R23 and R5, deviation of AD sampling results caused by inconsistency of the reference voltage can be eliminated, and gear matching is more accurate.

In an example, the pin 9 of the MCU can detect the size of the resistor R23, and when the pin 9 of the MCU detects that the resistor R23 is much larger than the maximum resistance value of the sliding switch assembly in the normal operating range, the MCU enters the sleep mode to turn off the output, thereby reducing the operating current in the sleep mode.

The embodiment of the utility model provides a food processor, slide switch subassembly's third pin can be connected to the sampling pin of the control unit, has realized going up electric back motor gear through the slide switch subassembly and has selected, realizes the motor speed governing.

In an exemplary embodiment of the present invention, the first pin of the slide switch assembly is connected to the power circuit; the sliding switch assembly slides to the turn-off area, and the power circuit is turned off to cut off the power of the control unit; the sliding switch component slides from the turn-off area to the variable resistance area, and the power circuit is conducted to enable the control unit to be electrified.

In this embodiment, the first pin of the sliding switch assembly may be connected to the power circuit, so as to power on or off the control unit through the sliding switch assembly.

In an example, the power supply circuit may further include: the battery pack, the power switch circuit and the second signal processing circuit are used for connecting the first pin of the sliding switch assembly to a high level when the sliding switch assembly slides to the turn-off region.

The second signal processing circuit is connected between the first pin of the sliding switch assembly and one end of the power switch circuit, and the other end of the power switch circuit is connected to the battery assembly; the sliding switch assembly slides to the turn-off area, the first pin of the sliding switch assembly is pulled high by the second signal processing circuit, and the power switch circuit is turned off, so that the battery assembly stops supplying power to the control unit; the sliding switch assembly slides from the turn-off area to the resistance change area, a first pin of the sliding switch assembly outputs low level, and the power switch circuit is conducted, so that the battery assembly supplies power to the control unit.

In this embodiment, the power circuit may include a battery assembly, and the slide switch assembly is disposed between the battery assembly and the control unit to control the battery assembly to supply or cut off power to the control unit. Wherein, the battery pack may be a lithium battery.

In this embodiment, a power switch circuit may be provided between the battery module and the slide switch module, and the battery module supplies power or stops supplying power to the control unit through the slide switch module by turning on or off the power switch circuit.

In an example, fig. 7A is a schematic circuit diagram of a power circuit provided in an exemplary embodiment of the present invention, and fig. 7B is a schematic circuit diagram of a sliding switch assembly provided in an exemplary embodiment of the present invention, as shown in fig. 7A and 7B, the power circuit may include a MOS transistor Q2, and the second signal processing circuit may include a second resistor R0; the grid of the MOS transistor Q2 is connected with one end of the second resistor R0, the common end of the MOS transistor Q2 is connected to the first pin of the sliding switch component, and the other end of the second resistor R0 is connected to the battery component; one of the source and the drain of the MOS transistor Q2 is connected to the battery assembly, and the other is connected to the operating voltage VDD pin of the control unit.

In this embodiment, OPEN is a switching signal. When the sliding switch component RP1 is located in the off region, pins 1 and 2 of RP1 are turned off, the gate voltage of the MOS transistor Q2 is pulled high by the resistor R0, and Q2 is not turned on. When RP1 slides from the off region to the variable resistance region, the switching signal OPEN is connected to ground through resistor R6 and the sliding switch. The maximum resistance values of the resistors R6 and RP1 are far smaller than that of the pull-up resistor R0, so that a voltage division switch signal OPEN is low, the PMOS tube Q2 is conducted at the moment, and the single chip microcomputer is electrified.

In an example, the power circuit may further include a charging port, the charging port is used for accessing a power source, and the charging port charges the battery assembly after accessing the power source. As shown IN fig. 7A, the power switch circuit may further include a MOS transistor Q1, VCC may be a voltage of a lithium battery, IN-5V (IN-5 for short) is a voltage input at the charging port, when a voltage is input at the charging port USB, the voltage is divided by resistors R1 and R2 to turn on the NMOS transistor Q1, the single chip is powered on, and VDD is a working voltage at two ends of the control unit.

The resistors R1 and R2 perform voltage division, and the resistor R3 is a current limiting resistor. If Q1, Q2 do not conduct, singlechip operating voltage VDD is 0, and whole circuit standby power consumption is 0 this moment to reduce complete machine standby power consumption and prolonged complete machine life.

The utility model discloses in an alternative embodiment, the slide switch subassembly can replace with dabbing the button, realizes the control unit switch on/off, awakens up the function selection such as the control unit, reset control unit and motor speed governing.

This embodiment is applicable to a rechargeable food processor based on a lithium battery as a power source, fig. 8 is a schematic structural diagram of the rechargeable food processor according to an exemplary embodiment of the present invention, and fig. 9 is a schematic structural diagram of the rechargeable food processor according to an exemplary embodiment of the present invention, as shown in fig. 8 and 9, the rechargeable food processor may include: the juice extractor comprises a juice extracting component, a main machine, a slag receiving cup, a juice receiving cup, a motor, a circuit board and a feeding channel. The juicing component comprises a squeezing barrel and a screw rod, an output shaft of a motor extends into the squeezing barrel, the screw rod is positioned in the squeezing barrel and connected to the output shaft of the motor, and the motor can drive the screw rod to rotate after being started.

The present embodiment can be applied, but is not limited to, food processors such as juice makers, meat grinders, noodle makers, egg beaters, cooking bars, yogurt makers, egg poachers, and flour mills.

Example two

This embodiment provides a food processor that differs from the first embodiment mainly in that the slide switch assembly is not connected to a power circuit that can directly supply power to the control unit.

Fig. 10 is a schematic diagram of a power circuit provided in an exemplary embodiment of the present invention, and fig. 11 is a schematic diagram of a food processor provided in an exemplary embodiment of the present invention, as shown in fig. 10 and 11, the power circuit may include a charging port and a battery module, the battery module may be a lithium battery, and the lithium battery may directly supply power to the entire control unit, the display unit, the driving system, and the like as a power module of the entire system. The charging port is used for being connected with a power supply, the charging port charges the battery assembly after being connected with the power supply, when the charging port USB is connected with the single chip microcomputer to be powered on, and when the charging port USB is pulled out, the battery assembly supplies power to enable the single chip microcomputer to be powered on.

The diodes D1 and D2 are used for isolating two power supplies. The resistor R7 can be connected in series with the VDD loop and capacitors (C1 and C2 in FIG. 11) at two ends of the single chip microcomputer to form RC filtering. The resistor R5 in the sliding switch assembly and the first signal processing circuit may be referred to as the throttle circuit 15.

In this embodiment, functions such as a wake-up control unit, a reset control unit, or a post-power-on motor gear selection can be realized through the varistor region of the sliding switch component RP1, the implementation principle is the same as that in the above embodiments, and this embodiment is not described again.

EXAMPLE III

The present embodiment provides a food processor, which is different from the first embodiment in that the sliding switch assembly is not connected to the power circuit, and the switch KEY1 can be disposed in the power circuit to power on or off the control unit.

Fig. 12 is a schematic diagram of a power circuit according to an exemplary embodiment of the present invention, and as shown in fig. 12, a switch KEY1 may be disposed between the battery assembly and the VDD pin of the control unit, and when the sliding switch assembly slides to the off region, KEY1 is turned off, and the single chip microcomputer is powered off. When the sliding switch assembly slides to the variable resistance area, the KEY1 is conducted, and the single chip microcomputer is electrified. When the USB is connected to the singlechip, the singlechip is powered on, and when the USB is pulled off, the singlechip is powered off.

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 device comprises a power circuit, a control unit and a sliding switch assembly;

2. The food processor of claim 1, wherein the sliding switch assembly comprises: a first pin, a second pin and a third pin;

3. The food processor of claim 1, further comprising: the reset circuit is used for resetting the control unit, and the output end of the reset circuit is connected to a reset pin of the control unit.

4. A food processor as claimed in claim 3, characterized in that the input of the reset circuit is connected to the power supply circuit, the reset circuit outputting a reset signal for resetting the control unit upon receiving an active flag signal;

5. The food processor of claim 4, wherein the power circuit includes a charging port, the food processor further comprising: the charging management module is used for acquiring whether a charging port is connected with a power supply to output the marking signal, an acquisition port of the charging management module is connected to the charging port, and an output port of the charging management module is connected to the input end of the reset circuit.

6. The food processor of claim 1, wherein the sliding switch assembly is connected to an external interrupt pin of the control unit;

7. The food processor of claim 6, wherein the sliding switch assembly comprises: a third pin, the food processor further comprising: and the first signal processing circuit is used for connecting the third pin of the sliding switch assembly to a high level when the sliding switch assembly slides to the turn-off area, and the first signal processing circuit is connected between the third pin of the sliding switch assembly and an external interrupt pin of the control unit.

8. The food processor of claim 7, wherein the first signal processing circuit comprises a first resistor, one end of the first resistor is connected to the third pin of the sliding switch assembly and the external interrupt pin of the control unit, and the other end of the first resistor is connected to the operating voltage VDD of the control unit.

9. The food processor of claim 1, wherein the sliding switch assembly comprises: the sliding switch assembly slides to the variable resistance region, and a variable on-resistance R23 exists between the second pin and the third pin;

10. The food processor of claim 1, wherein the sliding switch assembly comprises: a first pin, the power circuit comprising: the battery assembly, the power switch circuit and the second signal processing circuit are used for connecting a first pin of the sliding switch assembly to a high level when the sliding switch assembly slides to the turn-off area;