A cleaning robot

Abstract

The present application discloses a cleaning robot, which includes a controller, a switch circuit, a key trigger circuit and a self-locking circuit, wherein the switch circuit is electrically connected to the controller and is also used to be electrically connected to the power module, the key trigger circuit is electrically connected to the switch circuit, the key trigger circuit includes a key, the key is at least configured to control the on-off of the switch circuit, so that the power module supplies power to the controller through the switch circuit, the self-locking circuit is electrically connected to the switch circuit, the controller is at least configured to control the self-locking state of the self-locking circuit according to the on-off of the switch circuit, wherein when the switch circuit is in the on state, the controller identifies the secondary operation of the key to control the cleaning robot to perform a preset operation. Therefore, the key switch of the cleaning robot can realize multiple functions, thereby saving circuit costs and improving user experience.

Description

Technical Field

[0001] The invention relates to the field of robots, in particular to a cleaning robot. Background Art

[0002] The application of robots in the industrial field is relatively mature. In recent years, with the advent of global aging, social and family burdens are increasing, and home service robots will play an increasingly important role. Cleaning robots refer to automatic cleaning appliances that do not require handheld operation, including sweeping robots, mopping robots, etc. They can autonomously perform cleaning tasks at the workplace and help users complete a large amount of cleaning work. As people's living standards continue to improve, cleaning robots are becoming more and more popular.

[0003] Cleaning robots are generally equipped with multiple buttons, and different functions are completed by operating each button. Some buttons are used to turn on the robot, some buttons are used to turn off the robot, and other buttons are used for functions other than turning on and off the robot. When users use the cleaning robot to perform related operations, they need to use multiple buttons to operate, which is inconvenient and has a poor user experience. In addition, the buttons are large in size and take up a lot of space. Multiple buttons not only affect the size of the cleaning robot, but also make the circuit structure of the cleaning robot more complicated and more expensive. Summary of the invention

[0004] The present invention solves at least one of the above technical problems to a certain extent. To this end, the present invention provides a cleaning robot that can realize the function of key reuse, save costs, and improve user experience.

[0005] An embodiment of the present invention provides a cleaning robot, the cleaning robot comprising:

[0006] Controller;

[0007] A switch circuit, electrically connected to the controller and also used to be electrically connected to a power module;

[0008] A key trigger circuit is electrically connected to the switch circuit, wherein the key trigger circuit includes a key, and the key is at least configured to control the on-off of the switch circuit so that the power module supplies power to the controller through the switch circuit;

[0009] A self-locking circuit, electrically connected to the switch circuit, wherein the controller is at least configured to control a self-locking state of the self-locking circuit according to the on-off state of the switch circuit;

[0010] Wherein, when the switch circuit is in the on state, the controller recognizes the secondary operation of the button to control the cleaning robot to perform a preset operation. In some embodiments, when the button is operated for the second time, the button trigger circuit sends an electrical signal to the controller, and the controller controls the cleaning robot to start cleaning or pause cleaning.

[0011] In some embodiments, when the button is operated twice for a preset time, the controller sends a shutdown signal to the self-locking circuit, and the self-locking circuit controls the switch circuit to operate in an open circuit state according to the shutdown signal to disconnect the electrical connection between the power module and the controller, and the cleaning robot shuts down.

[0012] In some embodiments,

[0013] The key trigger circuit also includes:

[0014] A first unidirectional conducting circuit, electrically connected to the switch circuit, wherein the first unidirectional conducting circuit comprises a first node, and the key is electrically connected to the first node;

[0015] A pull-up circuit, used for providing an electrical signal to the controller;

[0016] A second unidirectional conducting circuit is electrically connected to the controller and the pull-up circuit respectively, and the second unidirectional conducting circuit is also electrically connected to the first node;

[0017] When the button is operated for the first time, the power module and the first unidirectional conductive circuit form a first loop, wherein the first loop can provide a first divided voltage for the switch circuit, so that the switch circuit works in a conductive state according to the first divided voltage;

[0018] When the button is operated for the second time, the pull-up circuit and the second unidirectional conduction circuit form a second loop, wherein the second loop can provide an electrical signal to the controller so that the controller performs a preset operation according to the electrical signal.

[0019] The first unidirectional conducting circuit comprises a first diode,

[0020] The second unidirectional conducting circuit comprises a second diode,

[0021] The pull-up circuit includes a pull-up resistor,

[0022] The cathode of the first diode, the cathode of the second diode and the button are commonly connected to the first node, the anode of the first diode is connected to the switch circuit, and the anode of the second diode is respectively connected to the pull-up resistor and the controller.

[0023] In some embodiments,

[0024] The switch circuit comprises:

[0025] A first switch tube, a first resistor, a second resistor and a second node, the first switch tube is respectively connected to the power module, the controller and the second node, one end of the first resistor is respectively connected to the power module and the first switch tube, the other end is connected to one end of the second resistor and the second node, and the other end of the second resistor is respectively connected to the self-locking circuit and the positive electrode of the first diode.

[0026] In some embodiments,

[0027] The self-locking circuit comprises:

[0028] A second switch tube, a third resistor, a fourth resistor, a third diode and a third node, the second switch tube is respectively connected to the switch circuit, the ground and the third node, the anode of the third diode is connected to the controller, the cathode of the third diode is connected to one end of the third resistor, the other end of the third resistor is connected to one end of the fourth resistor and the third node, and the other end of the fourth resistor is also connected to the ground.

[0029] In some embodiments,

[0030] The cleaning robot also includes:

[0031] The charging start circuit is electrically connected to the self-locking circuit. When a charging voltage is applied to the charging start circuit, the charging start circuit starts the self-locking circuit so that the self-locking circuit controls the switch circuit to lock and operate in a pass state.

[0032] In some embodiments, the charging start circuit includes: a fifth resistor and a fourth diode, one end of the fifth resistor is connected to the third node, and the other end of the fifth resistor is connected to the cathode of the fourth diode, and when a charging voltage is applied to the charging start circuit, the charging voltage is applied to the anode of the fourth diode.

[0033] In some embodiments, the cleaning robot further includes: a voltage adjustment circuit, which is electrically connected between the switch circuit and the controller, and is used to adjust the voltage of the power provided by the power module and apply the adjusted voltage to the controller.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects: the cleaning robot includes a controller, a switching circuit, a key trigger circuit and a self-locking circuit, wherein the switching circuit is electrically connected to the controller and is also used to be electrically connected to the power module, the key trigger circuit is electrically connected to the switching circuit, the key trigger circuit includes a key, the key is at least configured to control the on and off of the switching circuit so that the power module supplies power to the controller through the switching circuit, the self-locking circuit is electrically connected to the switching circuit, the controller is at least configured to control the self-locking state of the self-locking circuit according to the on and off of the switching circuit, wherein when the switching circuit is in the on state, the controller recognizes the secondary operation of the key to control the cleaning robot to perform a preset operation. Therefore, the key switch of the cleaning robot can realize multiple functions. It can realize the function of one-touch power on and off, and can also realize the functions of starting cleaning or pausing cleaning in addition to power on and off. The user does not need to use multiple switches to operate the cleaning robot to realize different functions. The operation is more convenient and the operation time is shorter, thereby improving the user experience. In addition, the key switch of the cleaning robot is less than the key switch of the prior art. Therefore, the circuit of the cleaning robot of the present invention occupies less space, reducing the circuit hardware cost. Furthermore, the circuit structure of the cleaning robot is simple, the wiring is easier, and it is easier to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0036] Figure 1 yes Figure 1 is a schematic structural diagram of a cleaning robot provided by an embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the block diagram of a cleaning robot provided by an embodiment of the present invention;

[0038] Figure 3 is a schematic block diagram of a cleaning robot provided by another embodiment of the present invention;

[0039] Figure 4 is a schematic structural diagram of a cleaning robot provided by yet another embodiment of the present invention;

[0040] Figure 5 It is a schematic diagram of circuit conduction between a self-locking circuit and a switch circuit when a controller provided in an embodiment of the present invention sends a self-locking signal to the self-locking circuit. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] See also Figure 1 , Figure 1 FIG. 1 is a schematic diagram of the structure of a cleaning robot provided by an embodiment of the present invention. Figure 1 As shown, the power module 200 supplies power to the cleaning robot 100, wherein the cleaning robot 100 includes a switching circuit 10, a key trigger circuit 20, a self-locking circuit 30 and a controller 40, wherein the switching circuit 10 is electrically connected to the controller 40, and is also used to be electrically connected to the power module 200, the key trigger circuit 20 is electrically connected to the switching circuit 10, wherein the key trigger circuit 20 includes a key, and the key is at least configured to control the on and off of the switching circuit 10 so that the power module 200 supplies power to the controller 40 through the switching circuit 10. When the key is operated for the first time, the key trigger circuit 20 triggers the switching circuit 10 to operate in a pass state, so that the power module 200 supplies power to the controller 40 through the switching circuit 10, that is, the controller 40 is in a power-on working state. The self-locking circuit 30 is electrically connected to the switch circuit 10, and the controller 40 is at least configured to control the self-locking state of the self-locking circuit 30 according to the on-off of the switch circuit 10. The self-locking state includes a locked state and an unlocked state. The self-locking circuit 30 is usually in an unlocked state. When the controller 40 detects the power supply of the power module 200, that is, the power module 200 has started to supply power to the controller 40, the controller 40 sends a self-locking signal to the self-locking circuit 30 to put the self-locking circuit 30 in a locked state, and thereby controls the switch circuit 10 to lock and work in a pass state, that is, to make the switch circuit 10 continue to work in a pass state. When the switch circuit 10 is in the pass state, if the button is operated a second time, the button trigger circuit 20 triggers the controller 40 to control the cleaning robot 100 to perform a preset operation, such as executing a shutdown function, or executing functions other than power on and off.

[0043] Therefore, the cleaning robot 100 can realize multiple functions by operating a key switch, which can realize the function of one-key power on and off, and can also realize the function of starting cleaning or pausing cleaning in addition to power on and off. The user does not need to use multiple switches to operate the cleaning robot to realize different functions, which is more convenient to operate and takes less time to operate, thereby improving the user experience. In addition, the key switches of the cleaning robot are fewer than those of the prior art. Therefore, the circuit of the cleaning robot of the present invention occupies less space, reducing the circuit hardware cost. Furthermore, the circuit structure of the cleaning robot is simple, wiring is easier, and it is easier to implement. The operation of one key realizes multiple functions, thereby saving circuit costs and improving user experience.

[0044] In some embodiments, the controller 40 may be any suitable type of electronic device having a processor with computing capabilities, such as a single chip microcomputer, a digital signal processing (DSP), a programmable logic controller (PLC), and the like.

[0045] In some embodiments, the switch circuit 10 can be a contactor, a relay, an electronic switch, a time delay switch, a photoelectric switch, a touch switch, a proximity switch, and a double control switch. It can also be a switch circuit composed of a switch tube. The working state of the switch circuit 10 controls the on and off of the power supply module 200 to the controller 40. When the switch circuit 10 works in the on state, the power module 200 can supply power to the controller 40 through the switch circuit 10. When the switch circuit 10 works in the off state, the connection between the power module 200 and the controller 40 is disconnected, and the controller 40 is no longer powered.

[0046] In some embodiments, the button in the button trigger circuit 20 is an automatic reset button.

[0047] In some embodiments, the working state of the self-locking circuit 30 is controlled by the controller 40. When the button is operated for the first time, the controller 40 sends a self-locking signal to the self-locking circuit 30, controls the self-locking circuit 30 to be in a working state of the passage, and then makes the switch circuit 10 continue to work in the passage state, so that the power module 200 continues to supply power to the controller 40, and realizes the power-on function of the controller 40. When the switch circuit 10 is in the passage state and the button is operated for the second time, the button trigger circuit 20 sends an electrical signal to the controller 40, so that the controller 40 performs the corresponding operation according to the electrical signal. For example: after the controller 40 receives the electrical signal sent by the button trigger circuit 20, the controller 40 controls the cleaning robot 100 to start the corresponding functions such as starting cleaning and pausing cleaning according to the electrical signal. If the button is operated for the second time for a preset value, the controller 40 sends a shutdown electrical signal to the self-locking circuit 30, controls the self-locking circuit 30 to be in a working state of the circuit break, and then makes the switch circuit 10 work in the circuit break state, disconnects the power supply circuit of the power module 200 for the controller 40, and shuts down the controller 40.

[0048] In some embodiments, the power module 200 can be a power chip or an integrated circuit composed of related circuits that can output electrical energy. The power module 200 can specifically be a switching power supply, an inverter power supply, an AC regulated power supply, a DC regulated power supply, a DC / DC power supply, a communication power supply, a module power supply, a variable frequency power supply, a UPS power supply, or the like.

[0049] See also Figure 2 , Figure 2 is a schematic diagram of a cleaning robot provided by an embodiment of the present invention, such as Figure 2 As shown, the button trigger circuit 20 in the cleaning robot 100 also includes a first unidirectional conduction circuit 21, a pull-up circuit 22, a second unidirectional conduction circuit 23 and a button 24. The first unidirectional conduction circuit 21 is connected to the switch circuit 10, and it also includes a first node 211, and the button 24 is electrically connected to the first node 211. A high-level signal is applied to the pull-up circuit 22 to provide an electrical signal to the controller 40, and the high-level signal can be a power supply voltage of the controller 40. The second unidirectional conduction circuit 23 is electrically connected to the controller 40 and the pull-up circuit 22, respectively, and the second unidirectional conduction circuit 23 is also electrically connected to the first node 211.

[0050] When the button 24 is operated for the first time, the power module 200 forms a first circuit through the switch circuit 10 and the first unidirectional conduction circuit 21, wherein the first circuit can provide a first voltage division for the switch circuit 10, so that the switch circuit 10 works in a conduction state according to the first voltage division, and the controller 40 performs the startup; when the switch circuit 10 is in the conduction state and the button 24 is operated for the second time, the power supply voltage of the controller 40 is applied to the pull-up circuit 22, and the pull-up circuit 22 and the second unidirectional conduction circuit 23 form a second circuit, wherein the second circuit can provide an electrical signal to the controller 40, and the controller 40 performs a preset operation according to the electrical signal. For example, the shutdown function is executed, or functions such as starting cleaning and pausing cleaning are executed in addition to the power on and off function. Therefore, the cleaning robot 100 realizes the multiplexing function of the button, and can realize other customized functions in addition to the power on and off function.

[0051] See also Figure 3 , Figure 3 is a schematic block diagram of a cleaning robot provided by another embodiment of the present invention, such as Figure 3 As shown, Figure 3 As shown, the cleaning robot 100 further includes a charging start circuit 50, which is electrically connected to the self-locking circuit 30. When a charging voltage is applied to the charging start circuit 50, the charging start circuit 50 starts the self-locking circuit 30, so that the self-locking circuit 30 controls the switch circuit 10 to lock and work in the on state, thereby allowing the power module 200 to continue to charge the controller 40. When the controller 40 is in the off state, an external charger is connected to the charging start circuit 50, so that the power module 200 charges the controller 40, and the function of automatic charging and powering on is realized, without the user having to press the power button again, thereby improving the user experience.

[0052] In some embodiments, Figure 3As shown, the cleaning robot 100 also includes a voltage adjustment circuit 60, which is electrically connected between the switch circuit 10 and the controller 40, and is used to adjust the voltage of the power provided by the power module 200, and apply the adjusted voltage to the controller 40. In some embodiments, the voltage adjustment circuit 60 is a power management IC (Power Management IC, referred to as PMIC), which is an integrated circuit for a specific purpose, and its function is to manage power for the main system. The main function of PMIC is to control the flow and direction of electricity to meet the needs of the main system. Among multiple power supplies (for example, external true current power supply, power module, USB power supply, etc.), select and distribute power to various parts of the main system for use. PMIC generally includes a direct current-to-direct current converter (DC-DC converter) and a low-dropout regulator (LDO), etc. The DC-DC converter is a circuit or electromechanical device for converting electric energy, which can convert a direct current (DC) power supply into a direct current (or approximately direct current) power supply of different voltages. LDO, also known as a low-dropout linear regulator or a low-dropout regulator, is a type of linear DC regulator, and its purpose is to provide a stable DC voltage power supply. Compared with a general linear DC regulator, a low voltage dropout regulator can operate under a smaller output-input voltage difference. The power management IC adjusts the power of the power module 200 and supplies power to the controller 40 .

[0053] See also Figure 4 , Figure 4 FIG. 1 is a schematic diagram of the structure of a cleaning robot provided by yet another embodiment of the present invention. Figure 4 As shown, the switch circuit 10 includes a first switch tube Q1, a first resistor R1, a second resistor R2 and a second node 11, wherein the first switch Q1 is respectively connected to the power module VBAT, the controller 40 and the second node 11, one end of the first resistor R1 is respectively connected to the power module VBAT and the first switch Q1, and the other end is connected to one end of the second resistor R2 and the second node 11, and the other end of the second resistor R2 is respectively connected to the positive electrode of the self-locking circuit 30 and the first diode D1. When the first switch tube Q1 is in the on working state, the switch circuit 10 is in the on working state. In the embodiment of the present invention, the first switch tube Q1 is a PMOS switch tube, the gate of the PMOS switch tube is connected to the second node 11, the source is connected to the power module terminal VBAT, and the drain is connected to the power supply terminal VDD of the controller 40 through the V_PWR terminal via the voltage adjustment circuit 60. When the PMOS switch tube is in the on state, the power supply of the power module VBAT supplies power to the controller 40 through the drain of the PMOS switch tube.

[0054] The self-locking circuit 30 includes a second switch tube Q2, a third resistor R3, a fourth resistor R4, a third diode D3 and a third node 31. The second switch tube Q2 is connected to the switch circuit 10, the ground and the third node 31 respectively. The positive electrode of the third diode D3 is connected to the controller 40, the negative electrode of the third diode D3 is connected to one end of the third resistor R3, the other end of the third resistor R3 is connected to one end of the fourth resistor R4 and the third node 31, and the other end of the fourth resistor R4 is also connected to the ground. The controller 40 can send a self-locking signal to the self-locking circuit 30, so that the second switch tube Q2 is in a conducting state, thereby locking the switch circuit 10 in a pass working state. If the controller 40 sends a shutdown signal to the self-locking circuit 30, the second switch tube Q2 is in a cut-off state, thereby making the switch circuit 10 in a circuit-breaking working state, and disconnecting the power module VBAT to supply power to the controller 40. In the embodiment of the present invention, the second switch tube Q2 is an NPN transistor, the base of the NPN transistor is connected to the third node 31, the collector is connected to the second resistor R2 and the positive electrode of the first diode D1, and the emitter is connected to the ground. In some embodiments, the second switch tube Q2 can also be an NMOS tube.

[0055] The first unidirectional conduction circuit 21 includes a first diode D1, the second unidirectional conduction circuit 23 includes a second diode D2, and the pull-up circuit 22 includes a pull-up resistor R6. The cathode of the first diode D1, the cathode of the second diode D2 and the key SW1 are connected to the first node 211, the anode of the first diode D1 is connected to the switch circuit 10, and the anode of the second diode D2 is connected to the pull-up resistor R6 and the controller 40 respectively.

[0056] The charging start circuit 50 further includes a fifth resistor R5 and a fourth diode D4. One end of the fifth resistor R5 is connected to the third node 31, and the other end of the fifth resistor R5 is connected to the cathode of the fourth diode D4. When a charging voltage is applied to the charging start circuit 50, the charging voltage is applied to the anode of the fourth diode D4.

[0057] Embodiments of the present invention are combined Figure 4 The specific working principle of the cleaning robot is described in detail as follows:

[0058] In the initial state, the first switch tube Q1 and the second switch tube Q2 are both in the cut-off state, the circuit of the power module VBAT supplying power to the controller 40 is disconnected, and the cleaning robot 100 is in the shutdown state. Therefore, even if there is power at the power module end VBAT, there will be no energy loss due to the lack of input voltage to the subsequent voltage adjustment circuit 60, and the switch circuit 10 itself will not consume power because the first switch tube Q1 and the second switch tube Q2 are cut off and disconnected. Therefore, the circuit can completely shut down the power supply and reduce the power loss of the power module.

[0059] When the button SW1 is operated for the first time, the two ends of the button SW1 are connected and grounded, the cathode of the first diode D1 is connected to the ground, the first diode D1 is turned on, and then the power module VBAT forms a first circuit through the first resistor R1, the second resistor R2, the first diode D1 and the button SW1. The VBAT voltage of the power module is divided by the first resistor R1, the second resistor R2 and the first diode D1, so that the gate-source voltage of the first switch tube Q1 is less than the turn-on voltage Vgs of the first switch tube Q1. The first switch tube Q1 is turned on, and the VBAT power supply of the power module supplies power to the voltage adjustment circuit 60 through the drain of the first switch tube Q1 through the V_PWR terminal, and the voltage adjustment circuit 60 then powers on the controller 40, so that the cleaning robot 100 is turned on.

[0060] After the cleaning robot 100 is turned on, the controller 40 detects that the power supply is on and that the VDD terminal is powered, and then sends a self-locking signal to the self-locking circuit 30 via the PWR_CTL terminal. Figure 5 , Figure 5 1 is a schematic diagram of the circuit conduction of the self-locking circuit and the switch circuit when the controller provided in an embodiment of the present invention sends a self-locking signal to the self-locking circuit. The self-locking signal is a high-level signal. The high-level signal turns on the third diode D3, and then the controller 40 forms a closed loop through the third diode D3, the third resistor R3, the fourth resistor R4 and the ground, and then the second switch tube Q2 is turned on. The collector voltage of the second switch tube Q2 is approximately equal to its emitter voltage, that is, close to 0V. Then, the VBAT voltage of the power module passes through the first resistor R1, the second resistor R4 and the ground. The resistor R2 and the second switch tube Q2 divide the voltage, so that the gate-source voltage of the first switch tube Q1 is less than the conduction voltage Vgs of the first switch tube Q1, the first switch tube Q1 is turned on, and the power supply module VBAT power supplies power to the voltage adjustment circuit 60 through the drain of the first switch tube Q1, and the controller 40 continuously sends a high-level signal to the self-locking circuit 30 to lock the first switch tube Q1 to continue to work in the conduction state, that is, the lock switch circuit 10 continues to work in the passage state, so that the power supply module VBAT power continues to supply power to the controller 40, and the power self-locking function is realized after startup.

[0061] When the button SW1 is operated for the second time, the two ends of the button SW1 are connected again and grounded. At the same time, the power supply voltage VDD of the controller 40 is applied to the pull-up resistor R6, the second diode D2 is turned on, and the pull-up resistor R6 and the second diode D2, the button SW1, and the ground form a second loop. Therefore, the positive terminal voltage of the second diode D2 is low level, and the low level signal is transmitted to the controller 40 via MCU_SW_KEY1. The controller 40 performs corresponding operations according to the low level signal, such as starting cleaning, pausing cleaning, etc. The specific operation can be customized by the user. Therefore, the cleaning robot 100 realizes multiplexing functions other than power on and off.

[0062] If the button SW1 is operated twice for a preset value, that is, the duration of the low-level signal reaches the preset value, the controller 40 continues to send a low-level signal to the self-locking circuit via the PWR_CTL terminal. After the button SW1 is released, the base of the second switch tube Q2 is continuously in a low-level state, so the second diode D2 is cut off, and the gate of the first switch tube Q1 is in a high-level state. The first switch tube Q1 is cut off, so that the switch circuit 10 operates in an open-circuit state, and then the power module VBAT is disconnected from the circuit that supplies power to the controller 40, and the subsequent voltage adjustment circuit 60 stops supplying power to the controller 40, and the cleaning robot 100 is shut down.

[0063] When the cleaning robot 100 is in the shutdown state, the external charger is connected to the charging start circuit 30 through the ADAPTOR_IN terminal. The external charger and the fourth diode D4, the fifth resistor R5 and the fourth resistor R4 form a closed loop. The external charger voltage is added to the base of the second switch tube Q2 through the fourth diode D4 and the fourth resistor R4, so that the second switch tube Q2 is turned on, and then the gate-source voltage of the first switch tube Q1 is less than the turn-on voltage Vgs of the first switch tube Q1. The first switch tube Q1 is turned on, and the power module VBAT power supply supplies power to the voltage adjustment circuit 60 through the drain of the first switch tube Q1. The cleaning robot 100 is powered on and turned on, realizing the charging and starting function. The user does not need to press the power switch again to realize the power-on function, thereby improving the user experience.

[0064] To sum up, the cleaning robot 100 can realize multiple functions through one button, without setting different switches to realize different functions, saving circuit costs, improving user experience, and when the controller is turned off, the power supply can be completely isolated, no power will be wasted, and energy loss will be saved.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleaning robot, characterized in that: include: Controller; A switch circuit, electrically connected to the controller and also used to be electrically connected to a power module; A key trigger circuit is electrically connected to the switch circuit, wherein the key trigger circuit includes a key, and the key is at least configured to control the on-off of the switch circuit so that the power module supplies power to the controller through the switch circuit; A self-locking circuit, electrically connected to the switch circuit, wherein the controller is at least configured to control a self-locking state of the self-locking circuit according to the on-off state of the switch circuit; Wherein, when the switch circuit is in a conducting state, the controller recognizes the secondary operation of the button to control the cleaning robot to perform a preset operation; The key trigger circuit also includes: A first unidirectional conducting circuit, electrically connected to the switch circuit, wherein the first unidirectional conducting circuit comprises a first node, and the key is electrically connected to the first node; A pull-up circuit, used for providing an electrical signal to the controller; A second unidirectional conducting circuit is electrically connected to the controller and the pull-up circuit respectively, and the second unidirectional conducting circuit is also electrically connected to the first node; When the button is operated for the first time, the power module and the first unidirectional conductive circuit form a first loop, wherein the first loop can provide a first divided voltage for the switch circuit, so that the switch circuit works in a conductive state according to the first divided voltage; When the button is operated for the second time, the pull-up circuit and the second unidirectional conduction circuit form a second loop, wherein the second loop can provide an electrical signal to the controller so that the controller performs a preset operation according to the electrical signal.

2. The cleaning robot according to claim 1, characterized in that: When the button is operated for the second time, the button trigger circuit sends an electrical signal to the controller, and the controller controls the cleaning robot to start cleaning or pause cleaning.

3. The cleaning robot according to claim 1, characterized in that: When the button is operated twice for a preset time, the controller sends a shutdown signal to the self-locking circuit. The self-locking circuit controls the switch circuit to operate in an open circuit state according to the shutdown signal to disconnect the electrical connection between the power module and the controller, and the cleaning robot shuts down.

4. The cleaning robot according to claim 1, characterized in that: The first unidirectional conducting circuit comprises a first diode, The second unidirectional conducting circuit comprises a second diode, The pull-up circuit includes a pull-up resistor, The cathode of the first diode, the cathode of the second diode and the button are commonly connected to the first node, the anode of the first diode is connected to the switch circuit, and the anode of the second diode is respectively connected to the pull-up resistor and the controller.

5. The cleaning robot according to claim 4, characterized in that: The switch circuit comprises: A first switch tube, a first resistor, a second resistor and a second node, the first switch tube is respectively connected to the power module, the controller and the second node, one end of the first resistor is respectively connected to the power module and the first switch tube, and the other end is connected to one end of the second resistor and the second node, and the other end of the second resistor is respectively connected to the self-locking circuit and the positive electrode of the first diode.

6. The cleaning robot according to claim 1, characterized in that: The self-locking circuit comprises: A second switch tube, a third resistor, a fourth resistor, a third diode and a third node, the second switch tube is respectively connected to the switch circuit, the ground and the third node, the anode of the third diode is connected to the controller, the cathode of the third diode is connected to one end of the third resistor, the other end of the third resistor is connected to one end of the fourth resistor and the third node, and the other end of the fourth resistor is also connected to the ground.

7. The cleaning robot according to claim 6, characterized in that: The cleaning robot also includes: The charging start-up circuit is electrically connected to the self-locking circuit. When a charging voltage is applied to the start-up circuit, the start-up circuit starts the self-locking circuit so that the self-locking circuit controls the switch circuit to lock and operate in a pass state.

8. The cleaning robot according to claim 7, characterized in that: The charging start circuit includes: a fifth resistor and a fourth diode, one end of the fifth resistor is connected to the third node, and the other end of the fifth resistor is connected to the cathode of the fourth diode. When a charging voltage is applied to the charging start circuit, the charging voltage is applied to the anode of the fourth diode.

9. The cleaning robot according to any one of claims 1 to 8, characterized in that: The cleaning robot further includes: a voltage regulating circuit, which is electrically connected between the switch circuit and the controller and is used for regulating the voltage of the power provided by the power module and applying the regulated voltage to the controller.

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