Equipment low-power-consumption circuit and stirring equipment

Abstract

The utility model discloses an equipment low power consumption circuit and stirring equipment wherein the equipment low power consumption circuit comprises a switch unit, a voltage conversion unit and a main control unit, the voltage conversion unit is respectively connected with the switch unit and the main control unit, the switch unit is suitable for connecting a power supply to the voltage conversion unit under the condition that the switch unit is switched on, and the main control unit is connected with the voltage conversion unit. The voltage conversion unit converts output voltage of the power supply to provide power supply voltage for the main control unit, and after the main control unit is powered on according to the power supply voltage, if it is detected that equipment needs to enter a low-power-consumption state, the switch unit is controlled to be switched off, so that the voltage conversion unit and the main control unit are both powered off. According to the equipment low-power-consumption circuit, when the equipment needs to enter a low-power-consumption state, the main control unit controls the switch unit to be switched off, so that the voltage conversion unit and the main control unit are powered off, the standby power consumption of the equipment is reduced, and the cruising ability of the equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power supply circuits, and in particular to a low-power consumption circuit for equipment and a stirring device. Background Art

[0002] In the related art, lithium battery blenders use micro switches and buttons as power switches. When the user uses it, the power switch needs to be turned on, the lithium battery supplies power to the circuit board, and the main control chip is in working or standby state. At this time, the blender is already in a power consumption state, and its power consumption is reflected in the power consumption of the main control chip and the loss in other circuits; if the user forgets to turn off the power switch, the lithium battery will lose power due to standby power consumption, reducing the battery life. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the first purpose of the utility model is to provide a low-power circuit for a device, when the device needs to enter a low-power state, the main control unit controls the switch unit to disconnect, so that the voltage conversion unit and the main control unit are powered off, reducing the standby power consumption of the device, thereby increasing the endurance of the device.

[0004] The second purpose of the utility model is to provide a stirring device.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a low-power consumption circuit for a device is proposed, comprising: a switch unit, a voltage conversion unit and a main control unit, wherein the voltage conversion unit is respectively connected to the switch unit and the main control unit, and when the switch unit is turned on, it is suitable for connecting the power supply to the voltage conversion unit, and the voltage conversion unit converts the output voltage of the power supply to provide a power supply voltage to the main control unit. After the main control unit is powered on according to the power supply voltage, if it is detected that the device needs to enter a low-power consumption state, the switch unit is controlled to be disconnected to power off the voltage conversion unit and the main control unit.

[0006] According to the low-power consumption circuit of the device in the embodiment of the utility model, it includes: a switch unit, a voltage conversion unit and a main control unit. The voltage conversion unit supplies power to the main control unit when the switch unit is turned on, so that the main control unit enters a working state to perform corresponding operations on the device. If the main control unit detects that the device needs to enter a low-power consumption state, the switch unit is controlled to be disconnected to cut off the power of the voltage conversion unit and the main control unit. In this way, the voltage conversion unit and the main control unit will not consume power, thereby reducing the standby power consumption of the device, thereby increasing the endurance of the device without affecting the normal operation of the device.

[0007] According to one embodiment of the utility model, the switch unit includes: a switch module, the first end of the switch module is suitable for connecting to a power supply, the second end of the switch module is connected to the input end of the voltage conversion unit, and the control end of the switch module is connected to the first output end of the main control unit.

[0008] According to an embodiment of the present invention, the switch module includes a first switch tube and a second switch tube connected in parallel.

[0009] According to an embodiment of the utility model, the first switch tube and the second switch tube are respectively a first MOS tube and a second MOS tube, and after the source of the first MOS tube is connected to the source of the second MOS tube, it serves as the first end of the switch module, after the drain of the first MOS tube is connected to the drain of the second MOS tube, it serves as the second end of the switch module, and after the gate of the first MOS tube is connected to the gate of the second MOS tube, it serves as the control end of the switch module.

[0010] According to one embodiment of the utility model, the switch unit also includes: a first drive module, the input end of the first drive module is connected to the first output end of the main control unit, the output end of the first drive module is connected to the control end of the switch module, and the first drive module is configured to drive the switch module to disconnect when receiving a power-off control signal output by the main control unit.

[0011] According to one embodiment of the utility model, the first driving module includes: a first transistor, the base of the first transistor is connected to the first output end of the main control unit, and the emitter of the first transistor is grounded; a first resistor, one end of the first resistor is connected to the collector of the first transistor, and the other end of the first resistor is connected to the first end of the switch module; a second transistor, the base of the second transistor is connected to the collector of the first transistor, the collector of the second transistor is connected to the control end of the switch module, and the emitter of the second transistor is connected to the first end of the switch module.

[0012] According to one embodiment of the utility model, the switch unit also includes: a second drive module, the input end of the second drive module is connected to the second output end of the main control unit, the output end of the second drive module is connected to the control end of the switch module, and the second drive module is configured to drive the switch module to maintain a conductive state when receiving a conductive control signal output by the main control unit.

[0013] According to one embodiment of the utility model, the second driving module includes: a third triode, the base of the third triode is connected to the second output end of the main control unit, the emitter of the third triode is grounded, and the collector of the third triode is connected to the control end of the switch module; a second resistor, the second resistor is connected between the base and the emitter of the third triode; a third resistor, one end of the third resistor is connected to the first end of the switch module, and the other end of the third resistor is connected to the collector of the third triode; a first capacitor, one end of the first capacitor is connected to the other end of the third resistor, and the other end of the first capacitor is grounded.

[0014] According to an embodiment of the utility model, the low power consumption circuit of the device further includes: a trigger unit, the trigger unit is connected to the switch unit, and the trigger unit is suitable for triggering the switch unit to be turned on to power on the device.

[0015] According to an embodiment of the present invention, when the main control unit detects that the device has no operation within a preset time, it determines that the device needs to enter a low power consumption state.

[0016] To achieve the above-mentioned purpose, according to a second aspect of the present invention, a stirring device is provided, comprising: a low-power consumption device circuit according to any of the above-mentioned embodiments.

[0017] According to the stirring device of the embodiment of the utility model, by adopting the aforementioned low-power consumption circuit of the device, when the device needs to enter a low-power consumption state, the main control unit disconnects by controlling the switch unit, so that the voltage conversion unit and the main control unit are powered off, thereby reducing the standby power consumption of the device and increasing the endurance of the device.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a system schematic diagram of a low power consumption circuit of a device according to an embodiment of the utility model;

[0020] Figure 2 is a circuit diagram of a voltage conversion unit according to an embodiment of the utility model;

[0021] Figure 3 is a circuit diagram of a low power consumption circuit of a device according to another embodiment of the utility model;

[0022] Figure 4 is a circuit diagram of a low power consumption circuit of a device according to another embodiment of the utility model;

[0023] Figure 5 is a circuit diagram of a low power consumption circuit of a device according to another embodiment of the utility model;

[0024] Figure 6 is a circuit diagram of a charging board and a low-power consumption circuit of a device according to an embodiment of the utility model;

[0025] Figure 7 It is a cross-sectional view of a stirring device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The low-power consumption circuit and stirring device of the embodiment of the utility model are described below with reference to the accompanying drawings.

[0028] Figure 1 1 is a system schematic diagram of a low power consumption circuit of a device according to an embodiment of the present utility model. Figure 1 As shown, the low power consumption circuit of the device includes: a switch unit 10, a voltage conversion unit 20 and a main control unit 30.

[0029] Among them, the voltage conversion unit 20 is connected to the switch unit 10 and the main control unit 30 respectively. When the switch unit 10 is turned on, it is suitable for connecting the power supply VBAT to the voltage conversion unit 20. The voltage conversion unit 20 converts the output voltage of the power supply VBAT to provide the power supply voltage VLDO to the main control unit 30. After the main control unit 30 is powered on according to the power supply voltage VLDO, if it is detected that the device needs to enter a low power consumption state, the switch unit 10 is controlled to be disconnected, so that the voltage conversion unit 20 and the main control unit 30 are all powered off.

[0030] Specifically, when the switch unit 10 is turned on, the power supply VBAT is provided to the voltage conversion unit 20. The power supply VBAT can be a lithium battery or other power sources. Because the output voltage of the power supply VBAT may not meet the working voltage of the main control unit 30, the voltage conversion unit 20 needs to convert the output voltage into the working voltage of the main control unit 30, and provide the power supply voltage VLDO to the main control unit 30, so that the main control unit 30 enters the working state. At this time, the main control unit 30 can control the device to perform corresponding operations according to the control instruction. After the main control unit 30 is powered on, if it is detected that the device needs to enter the low power consumption state, the switch unit 10 is controlled to be disconnected, and the switch unit 10 stops providing the power supply VBAT to the voltage conversion unit 20, and the voltage conversion unit 20 is powered off. Since the voltage conversion unit 20 has no power supply VBAT input, it stops outputting the power supply voltage VLDO, so that the main control unit 30 is powered off, and the main control unit 30 enters the shutdown state.

[0031] In an optional embodiment, if Figure 2 As shown, the voltage conversion unit 20 includes a power chip 21, a first diode D1, a second diode D2, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4, wherein the anode of the first diode D1 is connected to the output end of the switch unit 10, the cathode of the first diode D1 is respectively connected to the cathode of the second diode D2 and the input end of the power chip 21, the anode of the second diode D2 is the input power VIN of the power chip 21, one end of the second capacitor C2 is connected to the input end of the power chip 21, the other end of the second capacitor C2 is connected to the ground end of the power chip 21 and then grounded, one end of the third capacitor C3 is connected to the output end of the power chip 21, the other end of the third capacitor C3 is grounded, one end of the fourth capacitor C4 is connected to one end of the third capacitor C3 and is the output end of the power supply voltage VLDO, and the other end of the fourth capacitor C4 is grounded.

[0032] In some embodiments, the main control unit 30 determines that the device needs to enter a low power consumption state when detecting that the device has not been operated for a preset time.

[0033] That is to say, if the device has not been operated within the preset time, it indicates that the user does not need to use the device. Therefore, when the main control unit 30 detects that the device has not been operated within the preset time, it determines that the device needs to enter a low power consumption state and controls the switch unit 10 to turn off, so that the voltage conversion unit 20 and the main control unit 30 are all powered off.

[0034] It should be noted that the preset time is greater than 3 seconds, and the specific value can be set according to actual conditions.

[0035] In the above embodiment, when the switch unit is turned on, the main control unit is in a working state. When the device needs to enter a low power consumption state, the main control unit controls the switch unit to be disconnected, so that the voltage conversion unit and the main control unit are completely powered off. In this way, the voltage conversion unit and the main control unit will not consume power, thereby reducing the standby power consumption of the device, thereby increasing the battery life of the device without affecting the normal operation of the device.

[0036] In some embodiments, Figure 3 As shown, the switch unit 10 includes: a switch module 11, a first end of the switch module 11 is suitable for connecting to the power supply VBAT, a second end of the switch module 11 is connected to the input end of the voltage conversion unit 20, and a control end of the switch module 11 is connected to the first output end OUT1 of the main control unit 30.

[0037] It is understandable that when the switch module 11 is turned on, the switch module 11 provides the power supply VBAT to the voltage conversion unit 20. When the device needs to enter a low power consumption state, the main control unit 30 outputs a control signal to the control end of the switch module 11 through the first output end, so that the switch module 11 is turned off and stops providing the power supply VBAT to the voltage conversion unit 20.

[0038] In some embodiments, Figure 3 As shown, the switch module 11 includes a first switch tube and a second switch tube connected in parallel.

[0039] It should be noted that the switch module 11 is not limited to two switch tubes connected in parallel, but can also be one switch tube, or three switch tubes connected in parallel, which is not specifically limited here.

[0040] Furthermore, in some embodiments, Figure 3 As shown, the first switch tube and the second switch tube are respectively a first MOS (Metal-Oxide-Semiconductor Field-Effect Transistor) tube S1 and a second MOS tube S2. After the source of the first MOS tube S1 is connected to the source of the second MOS tube S2, they serve as the first end of the switch module 11. After the drain of the first MOS tube S1 is connected to the drain of the second MOS tube S2, they serve as the second end of the switch module 11. After the gate of the first MOS tube S1 is connected to the gate of the second MOS tube S2, they serve as the control end of the switch module 11.

[0041] Specifically, the first MOS transistor S1 and the second MOS transistor S2 are PMOS (Positive MOS, P-channel MOS) transistors. Because the three pins of the first MOS transistor S1 and the second MOS transistor S2 are connected respectively, the first MOS transistor S1 and the second MOS transistor S2 are switched at the same time. If one of the first MOS transistor S1 and the second MOS transistor S2 is turned on and the other is turned off, the switch module 11 can continue to provide the power supply VBAT to the voltage conversion unit 20, so that the main control unit 30 is always in a working state, thereby increasing the power consumption of the device.

[0042] In some embodiments, Figure 4 As shown, the switch unit 10 also includes: a first drive module 12, the input end of the first drive module 12 is connected to the first output end of the main control unit 30, the output end of the first drive module 12 is connected to the control end of the switch module 11, and the first drive module 12 is configured to drive the switch module 11 to disconnect when receiving the power-off control signal OFF output by the main control unit 30.

[0043] That is to say, when the main control unit 30 detects that the device needs to enter a low power consumption state, it outputs a power-off control signal OFF to the first drive module 12 through the first output terminal. The first drive module 12 generates a shutdown signal for the switch module 11 according to the power-off control signal OFF, and then uses the shutdown signal to drive the switch module 11 to shut down.

[0044] In some embodiments, Figure 4 As shown, the first driving module 12 includes: a first transistor Q1, a first resistor R1 and a second transistor Q2, wherein the base of the first transistor Q1 is connected to the first output end of the main control unit 30, and the emitter of the first transistor Q1 is grounded; one end of the first resistor R1 is connected to the collector of the first transistor Q1, and the other end of the first resistor R1 is connected to the first end of the switch module 11; the base of the second transistor Q2 is connected to the collector of the first transistor Q1, the collector of the second transistor Q2 is connected to the control end of the switch module 11, and the emitter of the second transistor Q2 is connected to the first end of the switch module 11.

[0045] Specifically, when the main control unit 30 does not output the power-off control signal OFF, the base of the second transistor Q2 is at a low level, so the second transistor Q2 is in an off state, the first resistor R1 is a pull-up resistor, and the base of the first transistor Q1 is pulled up to a high level through the first resistor R1, so the first transistor Q1 is in an off state, and at this time the first drive module 12 will not output an electrical signal, and therefore will not affect the working state of the switch module 11. When the main control unit 30 outputs the power-off control signal OFF, the base of the second transistor Q2 is at a high level, the second transistor Q2 is turned on, and then the base of the first transistor Q1 is pulled to a low level, so the first transistor Q1 is turned on, and the first drive module 12 generates a shutdown signal for the switch module 11, thereby driving the switch module 11 to turn off.

[0046] In some embodiments, Figure 5 As shown, the switch unit 10 also includes: a second drive module 13, the input end of the second drive module 13 is connected to the second output end of the main control unit 30, the output end of the second drive module 13 is connected to the control end of the switch module 11, and the second drive module 13 is configured to drive the switch module 11 to maintain the on state when receiving the on control signal ON output by the main control unit 30.

[0047] Specifically, when the main control unit 30 remains in the working state, the voltage conversion unit 20 needs to continuously output the power supply voltage VLDO to the main control unit 30. Therefore, the main control unit 30 needs to output the conduction control signal ON to the second driving module 13 so that the switch module 11 remains in the conducting state, so that the switch module 11 can continuously output the power supply VBAT to the voltage conversion unit 20, and the voltage conversion unit 20 can continuously output the power supply voltage VLDO to the main control unit 30, so that the main control unit 30 remains in the working state.

[0048] In the above embodiment, the main control unit outputs a conduction control signal to the second driving module, so that the switch module always remains in the on state, so that the voltage conversion unit can continue to provide power supply voltage to the main control unit, thereby allowing the main control unit to maintain a working state.

[0049] In some embodiments, Figure 5As shown, the second driving module 13 includes: a third triode Q3, a second resistor R2, a third resistor R3 and a first capacitor C1, wherein the base of the third triode Q3 is connected to the second output end of the main control unit 30, the emitter of the third triode Q3 is grounded, and the collector of the third triode Q3 is connected to the control end of the switch module 11; the second resistor R2 is connected between the base and the emitter of the third triode Q3; one end of the third resistor R3 is connected to the first end of the switch module 11, and the other end of the third resistor R3 is connected to the collector of the third triode Q3; one end of the first capacitor C1 is connected to the other end of the third resistor R3, and the other end of the first capacitor C1 is grounded.

[0050] Specifically, when the main control unit 30 does not output the conduction control signal ON, the second resistor R2 is a pull-down resistor, which pulls the base of the third transistor Q3 down to a low level, so that the third transistor Q3 is in an off state, and the third resistor R3 is a pull-up resistor, so that the switch module 11 is in an off state. When the main control unit 30 outputs the conduction control signal ON, the base of the third transistor Q3 is pulled to a high level, the third transistor Q3 is turned on, and the control end of the switch module 11 is pulled to a low level, so that the switch module 11 remains in the on state.

[0051] It should be noted that the main control unit 30 needs to be initialized after power-on, and will output the conduction control signal ON only after initialization. The third resistor R3 is also used to limit the charging current of the power supply VBAT to charge the first capacitor C1. When the absolute value of the voltage between the source and the gate of the first MOS tube S1 and the second MOS tube S2 in the switch module 11 is less than the turn-on voltage of the MOS tube, the first MOS tube S1 and the second MOS tube S2 will be turned off. Therefore, it is necessary to select a suitable resistance value of the third resistor R3 and a capacitance value of the first capacitor C1 according to the turn-on voltage of the MOS tube to ensure that the main control unit 30 completes the initialization before the first MOS tube S1 and the second MOS tube S2 are turned off.

[0052] In some embodiments, Figure 6 As shown, the low-power consumption circuit of the device further includes: a trigger unit, which is connected to the switch unit 10, and is suitable for triggering the switch unit 10 to turn on so as to power on the device.

[0053] That is, when the user needs to use the device, the user operates the trigger unit, and the trigger unit generates a trigger signal Key_unlock to turn on the switch unit 10, and the main control unit 30 is powered on and starts initialization.

[0054] In an optional embodiment, if Figure 6 As shown, the trigger unit includes a trigger button SW, which can be installed as shown in Figure 7On the charging plate 200 at the top of the device shown, when the user needs to use the device, the trigger signal Key_unlock is generated, thereby triggering the switch unit 10 to turn on, so that the main control unit 30 is powered on and enters the working state.

[0055] like Figure 6 As shown, the charging plate 200 on the top of the device includes a first connector CN1, a first light-emitting diode LED1, a second light-emitting diode LED2 and a third light-emitting diode LED3, wherein the cathode of the first light-emitting diode LED1 is connected to the first pin 1 of the first connector CN1, the cathode of the second light-emitting diode LED2 is connected to the second pin 2 of the first connector CN1, the cathode of the third light-emitting diode LED3 is connected to the third pin 3 of the first connector CN1, the anodes of the first light-emitting diode LED1, the second light-emitting diode LED2 and the third light-emitting diode LED3 are connected to the fourth pin 4 of the first connector CN1, one end of the trigger button SW is connected to the fifth pin 5 of the first connector CN1, and the other end of the trigger button SW is connected to the sixth pin 6 of the first connector CN1.

[0056] like Figure 6 As shown, the device low power consumption circuit 100 also includes a second connector CN2, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6, wherein the first pin 1 of the second connector CN2 is respectively connected to the first pin 1 of the first connector CN1 and one end of the fourth resistor R4, the second pin 2 of the second connector CN2 is respectively connected to the second pin 2 of the first connector CN1 and one end of the fifth resistor R5, the third pin 3 of the second connector CN2 is respectively connected to the third pin 3 of the first connector CN1 and one end of the sixth resistor R6, the fourth pin 4 of the second connector CN2 is connected to the fourth pin 4 of the first connector CN1, and is suitable for inputting the power supply voltage VLDO, the fifth pin 5 of the second connector CN2 is respectively connected to the fifth pin 5 of the first connector CN1 and the control end of the switch unit 10, and the sixth pin 6 of the second connector CN2 is connected to the sixth pin 6 of the first connector CN1, and is grounded. After the user presses the trigger button SW, the control end of the switch unit 10 is grounded, so the control end of the switch unit 10 is pulled to a low level, and the switch unit 10 is turned on, so that the device is powered on.

[0057] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods:

[0058] like Figure 6As shown, when the user does not press the trigger button SW, the gates of the first MOS transistor S1 and the second MOS transistor S2 are pulled to a high level by the third resistor R3, so the first MOS transistor S1 and the second MOS transistor S2 are in an off state. The power chip 21 of the voltage conversion unit 20 has no power supply VBAT input and no power supply voltage VLDO output. At this time, the main control unit 30 is in a power-off state because there is no power supply voltage VLDO, and the voltage conversion unit 20 is also in a power-off state, and the device is in a low power consumption state.

[0059] When the user needs to use the device, the trigger button SW is pressed, the gates of the first MOS tube S1 and the second MOS tube S2 are pulled to a low level, the first MOS tube S1 and the second MOS tube S2 are turned on, and the power supply VBAT is provided to the power chip 21, the power chip 21 performs voltage conversion on the power supply VBAT, generates the power supply voltage VLDO, and then supplies power to the main control unit 30. At this time, the main control unit 30 is powered on and starts initialization.

[0060] After the main control unit 30 completes initialization, it continuously outputs a conduction control signal ON to the base of the third triode Q3 through the second output terminal, so as to pull the base of the third triode Q3 to a high level, so that the third triode Q3 is turned on, and the third triode Q3 pulls the gates of the first MOS tube S1 and the second MOS tube S2 to a low level, so that the first MOS tube S1 and the second MOS tube S2 remain in an on state, so that the main control unit 30 remains in a working state.

[0061] If the main control unit 30 detects that the device has not been operated within a preset time and determines that the device needs to enter a low power consumption state, it stops outputting the conduction control signal ON, and outputs the power-off control signal OFF to the base of the second transistor Q2 through the first output terminal, pulls the base of the second transistor Q2 to a high level, and the second transistor Q2 is turned on, and then pulls the base of the first transistor Q1 to a low level, and the first transistor Q1 is turned on. Then the gates of the first MOS tube S1 and the second MOS tube S2 are pulled to a high level, so the first MOS tube S1 and the second MOS tube S2 are turned off. At this time, the power chip 21 has no power supply VBAT input and stops outputting the power supply voltage VLDO. The main control unit 30 is powered off and shuts down because there is no power supply voltage VLDO, achieving low power standby.

[0062] In the above embodiment, the user turns on the first MOS tube and the second MOS tube by triggering a button to power on the main control unit, and after the main control unit completes initialization, the first MOS tube and the second MOS tube are kept in an on state by continuously outputting a conduction control signal, so that the main control unit remains in a working state, and when the device needs to enter a low power consumption state, the main control unit outputs a power-off control signal to power off the voltage conversion unit and the main control unit, so that the voltage conversion unit and the main control unit will not consume power, thereby reducing the standby power consumption of the device, thereby increasing the endurance of the device without affecting the normal operation of the device.

[0063] To summarize, the low-power circuit of the device according to the embodiment of the utility model includes: a switch unit, a voltage conversion unit and a main control unit. The voltage conversion unit supplies power to the main control unit when the switch unit is turned on, so that the main control unit enters a working state to perform corresponding operations on the device. If the main control unit detects that the device needs to enter a low-power state, the switch unit is controlled to disconnect so that the voltage conversion unit and the main control unit are completely powered off. In this way, the voltage conversion unit and the main control unit will not consume electricity, thereby reducing the standby power consumption of the device, thereby increasing the battery life of the device without affecting the normal operation of the device.

[0064] Corresponding to the above embodiment, the embodiment of the utility model also proposes a stirring device. Figure 7 As shown, the stirring device includes: a low power consumption circuit 100 of any of the aforementioned embodiments.

[0065] Furthermore, the stirring device further includes a motor 300, a first button SW1 and a second button SW2, wherein the motor 300 is arranged inside the stirring device, and the first button SW1 and the second button SW2 are arranged on the outer surface of the stirring device. When the user needs to operate the stirring device, the first button SW1 and the second button SW2 are pressed, and the low-power circuit 100 of the device drives the motor 300 to operate according to the electrical signals of the first button SW1 and the second button SW2.

[0066] According to the stirring device of the embodiment of the utility model, by adopting the aforementioned low-power consumption circuit of the device, when the device needs to enter a low-power consumption state, the main control unit disconnects by controlling the switch unit, so that the voltage conversion unit and the main control unit are powered off, thereby reducing the standby power consumption of the device and increasing the endurance of the device.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the embodiments. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present invention, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0070] In the present utility model, unless otherwise clearly specified or limited in the embodiments, the terms "install", "connect", "connect" and "fix" etc. appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific implementation situation.

[0071] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A low power consumption circuit for a device, characterized in that: include: A switch unit, a voltage conversion unit and a main control unit, wherein the voltage conversion unit is connected to the switch unit and the main control unit respectively, and when the switch unit is turned on, it is suitable for connecting the power supply to the voltage conversion unit, and the voltage conversion unit converts the output voltage of the power supply to provide the power supply voltage to the main control unit. After the main control unit is powered on according to the power supply voltage, if it is detected that the device needs to enter a low power consumption state, the switch unit is controlled to be disconnected so that the voltage conversion unit and the main control unit are all powered off.

2. The low power consumption circuit of the device according to claim 1, characterized in that: The switch unit comprises: A switch module, wherein the first end of the switch module is suitable for connecting to the power supply, the second end of the switch module is connected to the input end of the voltage conversion unit, and the control end of the switch module is connected to the first output end of the main control unit.

3. The low power consumption circuit of the device according to claim 2, characterized in that: The switch module includes a first switch tube and a second switch tube connected in parallel.

4. The low power consumption circuit of the device according to claim 3, characterized in that: The first switch tube and the second switch tube are respectively a first MOS tube and a second MOS tube. After the source of the first MOS tube is connected to the source of the second MOS tube, it serves as the first end of the switch module. After the drain of the first MOS tube is connected to the drain of the second MOS tube, it serves as the second end of the switch module. After the gate of the first MOS tube is connected to the gate of the second MOS tube, it serves as the control end of the switch module.

5. The low power consumption circuit of the device according to claim 2, characterized in that: The switch unit further comprises: A first driving module, wherein the input end of the first driving module is connected to the first output end of the main control unit, the output end of the first driving module is connected to the control end of the switch module, and the first driving module is configured to drive the switch module to disconnect when receiving a power-off control signal output by the main control unit.

6. The low power consumption circuit of the device according to claim 5, characterized in that: The first driving module comprises: A first triode, wherein a base of the first triode is connected to a first output terminal of the main control unit, and an emitter of the first triode is grounded; a first resistor, one end of the first resistor being connected to the collector of the first transistor, and the other end of the first resistor being connected to the first end of the switch module; A second transistor, wherein the base of the second transistor is connected to the collector of the first transistor, the collector of the second transistor is connected to the control end of the switch module, and the emitter of the second transistor is connected to the first end of the switch module.

7. The low power consumption circuit of the device according to claim 2, characterized in that: The switch unit further comprises: A second driving module, wherein the input end of the second driving module is connected to the second output end of the main control unit, the output end of the second driving module is connected to the control end of the switch module, and the second driving module is configured to drive the switch module to maintain a conductive state when receiving a conductive control signal output by the main control unit.

8. The low power consumption circuit of the device according to claim 7, characterized in that: The second driving module comprises: a third triode, wherein the base of the third triode is connected to the second output terminal of the main control unit, the emitter of the third triode is grounded, and the collector of the third triode is connected to the control terminal of the switch module; a second resistor, wherein the second resistor is connected between the base and the emitter of the third transistor; a third resistor, one end of the third resistor being connected to the first end of the switch module, and the other end of the third resistor being connected to the collector of the third transistor; A first capacitor, one end of the first capacitor is connected to the other end of the third resistor, and the other end of the first capacitor is grounded.

9. The low power consumption circuit of the device according to any one of claims 1 to 8, characterized in that: Also includes: A trigger unit is connected to the switch unit, and the trigger unit is suitable for triggering the switch unit to turn on so as to power on the device.

10. The low power consumption circuit of a device according to any one of claims 1 to 8, characterized in that: When the main control unit detects that the device has not been operated for a preset time, it determines that the device needs to enter a low power consumption state.

11. A stirring device, characterized in that: A device low power consumption circuit comprising the device according to any one of claims 1-10.

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