CN214048675U - Cleaning system - Google Patents

Abstract

The utility model relates to a cleaning machines people technical field discloses a cleaning system, and this cleaning system includes cleaning machines people and recharges the seat, and cleaning machines people includes power supply circuit, signal receiver, first wireless communication circuit and main control unit, and power supply circuit includes the main power supply, and main control unit sends back according to the first wireless communication circuit of electric quantity control of main power supply and fills the signal. The recharging seat comprises a switching power supply, a first switching circuit, a signal emitter, a second wireless communication circuit and a microcontroller, and the microcontroller controls the first switching circuit to conduct the switching power supply and the signal emitter according to a recharging signal. Therefore, when the cleaning robot needs to be charged, the recharging seat controls the switch circuit to be switched on, so that the signal transmitter sends the optical signal or the sound wave signal, the cleaning robot navigates according to the optical signal or the sound wave signal to recharge the recharging seat for charging, the electric energy can be saved, and the service life of the recharging seat is prolonged.

Description

Cleaning system

Technical Field

The utility model relates to a cleaning machines people technical field especially relates to a cleaning system.

Background

With the technical development of robots, cleaning robots are widely used for indoor cleaning work. Meanwhile, robot recharging technologies that provide power specifically for cleaning robots are also becoming mature.

Usually, the user sets up back at indoor and fills the seat, fills the seat and is equipped with power module back, because cleaning machines people's charging time has uncertainty, consequently, when cleaning machines people need to charge each time, the user needs the manual work to insert the power plug who fills the seat back into the socket to cleaning machines people gets back when filling the seat back, can in time charge, consequently, this kind of mode needs manual operation, and is more troublesome.

Generally, users often choose to plug the power plug of the recharging seat into the socket at one time, so as to avoid frequent manual operation of the recharging seat. However, no matter whether the cleaning robot needs to be charged or not, the recharging seat is in a power-on state, so that electric energy is wasted, the loss speed of the recharging seat is increased, and the service life of the recharging seat is shortened.

Disclosure of Invention

In order to solve the above technical problem, an object of the embodiments of the present invention is to provide a cleaning system, which can save electric energy.

In a first aspect, an embodiment of the present invention provides a cleaning system, including a cleaning robot and a recharging seat, where the cleaning robot includes a power circuit, a signal receiver, a first wireless communication circuit, and a main controller, the main controller is electrically connected to the power circuit, the signal receiver, and the first wireless communication circuit, respectively, the power circuit includes a main power source, and the main controller controls the first wireless communication circuit to transmit a recharging signal according to an electric quantity of the main power source;

the recharging seat comprises a switching power supply, a first switching circuit, a signal transmitter, a second wireless communication circuit and a microcontroller, the switching power supply is connected with the signal transmitter through the first switching circuit, the microcontroller is respectively electrically connected with the second wireless communication circuit and the first switching circuit, and the microcontroller controls the first switching circuit to be connected with the switching power supply and the signal transmitter according to the recharging signal received by the second wireless communication circuit.

Optionally, the recharging base further includes a power supply circuit, the power supply circuit is electrically connected to the first switch circuit, and the microcontroller controls the switch circuit to conduct the switching power supply and the power supply circuit according to the recharging signal received by the second wireless communication circuit.

Optionally, the first switching circuit includes a first MOS transistor, a gate of the first MOS transistor is electrically connected to the microcontroller, a drain of the first MOS transistor is electrically connected to the switching power supply, and a source of the first MOS transistor is electrically connected to the signal emitter and the power supply circuit, respectively.

Optionally, the recharging base further includes a power supply circuit, a second switch circuit and an in-place sensor, the switch power supply is connected to the power supply circuit through the second switch circuit, the microcontroller is electrically connected to the in-place sensor and the second switch circuit, and the microcontroller controls the second switch circuit to conduct the switch power supply and the power supply circuit according to a detection signal of the in-place sensor.

Optionally, the first switching circuit includes a first MOS transistor, a gate of the first MOS transistor is electrically connected to the microcontroller, a drain of the first MOS transistor is electrically connected to the switching power supply, and a source of the first MOS transistor is electrically connected to the signal emitter;

the second switch circuit comprises a second MOS tube, the grid electrode of the second MOS tube is electrically connected with the microcontroller, the drain electrode of the second MOS tube is electrically connected with the switch power supply, and the source electrode of the second MOS tube is electrically connected with the power supply circuit.

Optionally, the in-place sensor is a hall sensor, a piezoelectric sensor, a capacitive sensor, a tact switch, or an optical coupler sensor.

Optionally, the supply circuit comprises a supply electrode, or

The power supply circuit includes a wireless transmit coil.

Optionally, the switching power supply comprises:

the rectification filter circuit is electrically connected with an external power supply;

and the power supply conversion circuit is electrically connected with the first switch circuit and the rectification filter circuit respectively.

Optionally, the switching power supply further includes a voltage detection circuit, and the voltage detection circuit is electrically connected to the first switching circuit and the microcontroller, respectively.

Optionally, the switching power supply further includes a short-circuit protection circuit electrically connected between the first switching circuit and the power supply circuit.

Optionally, the signal receiver is an infrared receiver, and the signal transmitter is an infrared transmitter.

The utility model discloses a set up first wireless communication circuit on cleaning machines people, and set up second wireless communication circuit and first switch circuit on recharging the seat, this first switch circuit connection is between signal transmitter and switching power supply, when cleaning machines people need charge, the signal is recharged in the transmission of first wireless communication circuit, recharge the seat and connect and regain the signal of filling, and control first switch circuit switch on switching power supply and signal transmitter, make signal transmitter send light signal or sound wave signal, so that cleaning machines people recharges the seat according to light signal or sound wave signal navigation and charges, thereby can practice thrift the electric energy, the life who recharges the seat has been improved. Further, a power supply circuit (a power supply electrode or a wireless transmitting coil) of the recharging seat can be connected with the first switch circuit, and the power supply of the signal transmitter and the power supply circuit can be switched on or off simultaneously through the first switch circuit. In addition, the recharging seat can also be provided with a second switch circuit and an on-site sensor, the second switch circuit is connected between a switch power supply and a power supply circuit (a power supply electrode or a wireless transmitting coil), when the cleaning robot searches for recharging and stops at the preset position of the recharging seat, the on-site sensor detects that the cleaning robot is on site, and the recharging seat controls the second switch circuit to conduct the switch power supply and the power supply circuit, at the moment, the cleaning robot charges through the power supply circuit, the loss of the recharging seat electric energy is further reduced, the service life of the recharging seat is prolonged, meanwhile, the safety of the power supply circuit of the recharging seat is improved, and electric shock caused by electrification when the cleaning robot is not charged is avoided.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a cleaning system of the present invention;

FIG. 2 is a perspective schematic view of a cleaning robot of the cleaning system of FIG. 1;

FIG. 3 is a schematic diagram of an electrical circuit configuration of a cleaning robot of the cleaning system of FIG. 1;

FIG. 4 is a schematic diagram of another circuit configuration of the cleaning robot of FIG. 3;

FIG. 5 is a schematic diagram of another circuit configuration of the cleaning robot of FIG. 3;

FIG. 6 is a schematic diagram of an electrical circuit configuration of the refill socket of the cleaning system of FIG. 1;

FIG. 7 is a schematic diagram of another circuit configuration of the refill seat of FIG. 6;

FIG. 8 is a schematic diagram of another circuit configuration of the refill seat of FIG. 6;

fig. 9 is a schematic circuit diagram of the short-circuit protection circuit shown in fig. 8;

FIG. 10 is a schematic diagram of yet another circuit configuration of the refill seat of FIG. 6;

fig. 11 is a schematic circuit diagram of a refill seat according to another embodiment of the cleaning system of the present invention;

fig. 12 is a schematic circuit diagram of a refill seat according to another embodiment of the cleaning system of the present invention.

Detailed Description

To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the cleaning system 100 includes a cleaning robot 200 and a recharging station 300, wherein the cleaning robot 200 and the recharging station 300 communicate with each other, so that the cleaning robot 200 navigates to the recharging station 300 for charging.

In the present embodiment, the cleaning robot 200 may be configured in any suitable shape to achieve a particular business function operation, including, without limitation, a sweeping robot, a dust collection robot, a mopping robot, a floor washing robot, and the like.

Referring to fig. 2 and 3, the cleaning robot 200 includes a housing 21, a signal receiver 23, a power circuit 24, a first wireless communication circuit 25, a scroll wheel assembly 26, a cleaning unit 27, and a main controller 28.

The housing 21 is a protective case of the cleaning robot 200, and is provided with an accommodating chamber for accommodating and mounting various kinds of components. In some embodiments, the outer shape of the housing 21 may be substantially circular, D-shaped, or other shape.

A signal receiver 23 is mounted on the housing 21, wherein the signal receiver 23 is adapted to sense an optical signal or an acoustic signal, preferably an infrared signal, emitted by the refill socket 300. In some embodiments, signal receiver 23 may employ any suitable type of infrared receiving head.

The power circuit 24 is installed in the receiving cavity of the housing 21, and is used for supplying power to the recharging stand 300 and supplying power to the above components.

In some embodiments, referring to fig. 4, the power circuit 24 includes a charging electrode 241, a voltage regulator 242, and a main power supply 243.

The charging electrode 241 is used to be electrically connected with a power supply electrode of the recharging base 300, and the power supply electrode supplies power to the cleaning robot 200 through the charging electrode 241. In some embodiments, the charging electrode 241 includes a first electrode plate and a second electrode plate, which are mounted on the housing 21 opposite to each other, and when the cleaning robot 200 moves to the recharging receptacle 300, the first electrode plate and the second electrode plate respectively contact with corresponding electrode plates of the power supply electrode of the recharging receptacle 300, so that the recharging receptacle 300 can provide power for the cleaning robot 200.

The voltage regulator circuit 242 is electrically connected between the main power supply 243 and the charging electrode 241, and is configured to stabilize the voltage transmitted from the charging electrode 241, transmit the stabilized voltage to the main power supply 243, and supply power to the main power supply 243.

In some embodiments, the regulator circuit 242 may be implemented by any suitable discrete component, such as a regulator diode or the like for the regulator circuit 242.

It will be appreciated that the voltage regulator circuit 242 may be omitted from the power supply circuit 24.

The main power supply 243 is electrically connected with the main controller 28 through the electric quantity detection circuit, the main power supply 243 charges according to the power supply after voltage stabilization, the main controller 28 is used for detecting the electric quantity of the main power supply 243, when the main controller 28 detects that the electric quantity of the main power supply 243 is smaller than or equal to a preset threshold value, the first wireless communication circuit 25 is controlled to transmit a recharging signal, the recharging base 300 works in a power supply state according to the recharging signal, and when the cleaning robot 200 moves to the recharging base 300, the recharging base 300 provides the power supply for the cleaning robot 200.

In some embodiments, the main power supply 243 may employ a rechargeable battery, such as a secondary battery or a lithium battery.

In some embodiments, the first wireless communication circuit 25 may select any wireless transmitter, for example, the first wireless communication circuit 25 supports 5G, 4G, 3G, 2G, WIFI, bluetooth, ZIGBEE, RFID, and the like wireless transmission protocols.

The roller assembly 26 is mounted to the housing 21 and drives the cleaning robot 200 to move across a surface to be cleaned, which may be a relatively smooth floor surface, a carpeted surface, or other surface to be cleaned.

In some embodiments, with continued reference to fig. 4, the roller assembly 26 includes a roller mechanism 261, a motor 262 and a driving circuit 263, the roller mechanism 261 is mounted on the housing 21, and the motor 262 is connected to the roller mechanism 261 for driving the roller mechanism 261 to rotate. The driving circuit 263 is electrically connected to the motor 262 and the main controller 28, respectively, for driving the motor 262 to drive the roller mechanism 261 to rotate, wherein the main controller 28 sends a driving signal to the driving circuit 263, so that the driving circuit 263 drives the roller mechanism 261 to rotate. In some embodiments, the main controller 28 may adjust the duty cycle of the drive signal in order to adjust the rotational speed of the roller mechanism 261.

It will be appreciated that the drive circuit may be a motor drive circuit formed from any suitable discrete components, for example, a full bridge drive circuit or a half bridge drive circuit.

In some embodiments, the roller mechanism 261 includes a left drive wheel 264, a right drive wheel 265, and an omni-wheel 266, the left drive wheel 264 and the right drive wheel 265 being mounted to opposite sides of the housing 21. The left drive wheel 264 and the right drive wheel 265 are configured to be at least partially extendable and retractable into the bottom of the housing 21. The omni-directional wheel 266 is installed at a front position of the bottom of the housing 21, and the omni-directional wheel 266 is a movable caster wheel that can horizontally rotate 360 degrees, so that the cleaning robot 200 can flexibly turn. The left driving wheel 264, the right driving wheel 265 and the omni-directional wheel 266 are installed to form a triangle to improve the traveling stability of the cleaning robot 200.

In some embodiments, the omni-directional wheel 266 may be omitted, and only the left driving wheel 264 and the right driving wheel 265 may be left to drive the cleaning robot to normally walk.

The cleaning member 27 is mounted on a surface of the housing 21 facing the surface to be cleaned and is configured to clean dirt on the surface to be cleaned.

In some embodiments, the cleaning member 27 includes a rolling brush 271 and an edge brush 272, the rolling brush 271 is disposed in a first receiving groove formed in the bottom of the housing 21, the first receiving groove is formed to be recessed from the bottom of the housing 21 toward the top, and the housing 21 further has a second receiving groove, and the second receiving groove is communicated with the first receiving groove through the suction port.

In some embodiments, the cleaning member 27 may further include a mop installed at the rear portion of the housing 21 for mopping and cleaning the surface to be cleaned after being cleaned by the rolling brush 271 or the side brush 272. In other embodiments, the cleaning robot 200 may be provided with only the cleaning member, and the cleaning member may be mounted at the front portion or the middle portion of the housing 21.

The main controller 28, which is a control core of the cleaning robot 200, is electrically connected to the signal receiver 23, the power circuit 24, the first wireless communication circuit 25, and the scroll wheel assembly 26, respectively. When the main controller 28 detects that the supply voltage of the power supply circuit 24 is less than or equal to the preset threshold, it controls the first wireless communication circuit 25 to transmit the recharge signal. The main controller 28 controls the roller assembly 26 to drive the cleaning robot to walk to the recharging seat 300 for charging according to the optical signal or the sound wave signal received by the signal receiver 23.

In some embodiments, the main controller 28 may select any suitable type of processor, such as a central processing unit, a DSP processor, a single chip, or the like.

In addition to the power circuit 24 receiving power from the charging dock 300 via wired charging, such as charging electrodes, in some embodiments, the power circuit 34 may receive power from the charging dock 300 via wireless charging.

Referring to fig. 5, the power circuit 24 includes a wireless receiving coil 244, a full-bridge rectifying circuit 245 and a rechargeable battery 246.

The wireless receiving coil 244 is used to couple back the energy emitted by the docking station 300 and convert the energy into an ac power source. The full-bridge rectifier circuit 245 is electrically connected to the wireless receiving coil 244, and rectifies an ac power into a dc power. The rechargeable battery 246 is electrically connected to the full-bridge rectifier circuit 245, and stores dc power as energy. By adopting the wireless charging mode, the cleaning robot 200 can rapidly obtain electric energy from the recharging stand 300.

In this embodiment, the recharging station 300 may emit an infrared signal directing the cleaning robot 200 to find the charging position.

Referring to fig. 6, the recharging base 300 includes a switching power supply 31, a first switching circuit 32, a signal transmitter 33, a second wireless communication circuit 34, and a microcontroller 35.

The switching power supply 31 is connected to the signal transmitter 33 through the first switching circuit 32, and when the first switching circuit 32 is in a conducting state, the switching power supply 31 can provide an operating power supply for the signal transmitter 33, so that the signal transmitter 33 can emit a light signal or a sound wave signal, preferably an infrared signal. When the first switching circuit 32 is in the off state, the operating power supplied from the switching power supply 31 cannot be supplied to the signal transmitter 33, and the signal transmitter 33 does not operate.

The first switch circuit 32 is controlled by the microcontroller 35 to operate in an on state or an off state, for example, the microcontroller 35 sends a high level to the first switch circuit 32, so that the first switch circuit 32 is in the on state. The microcontroller 35 sends a low level to the first switch circuit 32, and the first switch circuit 32 is in the off state.

The signal emitter 33 is mounted on the housing of the refill socket 300, wherein the signal emitter 33 is adapted to the signal receiver 23 for emitting an infrared signal.

The second wireless communication circuit 34 is configured to receive a recharge signal, and in some embodiments the second wireless communication circuit 34 may select any wireless receiver, for example, the second wireless communication circuit 34 supports 5G, 4G, 3G, 2G, WIFI, bluetooth, ZIGBEE, RFID, etc. wireless transmission protocols.

The microcontroller 35 is electrically connected to the second wireless communication circuit 34 and the first switch circuit 32, respectively, and the microcontroller 35 controls the first switch circuit 32 to turn on the switch power supply 31 and the signal transmitter 33 according to the recharging signal received by the second wireless communication circuit 34, so that the switch power supply 31 can provide the signal transmitter 33 with operating power, so that the signal transmitter 33 can transmit a light signal or a sound wave signal, preferably an infrared signal.

In this embodiment, when the cleaning robot 200 detects that the power of the main power source 243 is lower than the preset threshold, then the first wireless communication circuit 25 transmits the recharging signal, the second wireless communication circuit 34 receives the recharging signal, then, in the recharging base 300, the microcontroller 35 controls the first switch circuit 32 to be turned on according to the recharging signal, on one hand, since the first switch circuit 32 is turned on, the switch power source 31 can provide the operating power source for the signal transmitter 33, then, the electric energy can drive the signal transmitter 33 to transmit the optical signal or the acoustic signal, preferably, the infrared signal, the signal receiver 23 of the cleaning robot 200 receives the infrared signal, and then, the main controller 28 controls the roller assembly 26 to drive the cleaning robot 200 to move to the recharging base 300 according to the infrared signal.

When the charging is completed, the cleaning robot 200 controls the first wireless communication circuit 25 to transmit the full charge signal, and the recharging base 300 receives the full charge signal through the second wireless communication circuit 34, so that the recharging base 300 controls the first switch circuit 32 to be in a cut-off state, the first switch circuit 32 disconnects the loop between the switch power supply 31 and the signal transmitter 33, and the signal transmitter 33 stops transmitting the infrared signal.

In general, on the one hand, when the cleaning robot 200 needs to be charged, the recharging base 300 controls the first switch circuit 32 to be turned on, so that the signal emitter 33 sends a light signal or a sound wave signal, preferably an infrared signal, so that the cleaning robot 200 can navigate the recharging base 300 to be charged according to the infrared signal, thereby saving electric energy and prolonging the service life of the recharging base.

Since the cleaning robot 200 and the recharging stand 300 provided in this embodiment adopt an infrared communication method, the cleaning robot 200 can reliably navigate to the recharging stand 300 for charging. In addition, because the signal transmitter 33 is an infrared transmitter and the signal receiver 23 is an infrared receiver, the cost is relatively low, and the peripheral circuit design is simple, the infrared signal is easy to detect and extract, and no complex processing circuit is needed, therefore, the circuit structure design of the system is scientific and simple, and the cost is low. In other embodiments, the signal transmitter 33 and the signal receiver 23 may be an ultrasonic transmitter and an ultrasonic receiver, respectively, the cleaning robot 200 returns to the recharging base 300 for charging through ultrasonic waves, and the cleaning robot 200 and the recharging base 300 also perform charging communication in a wireless communication manner + an optical signal/a sound wave signal manner, specifically: when the cleaning robot 200 is in a long distance, the cleaning robot 200 is close to the recharging seat 300 in a wireless communication mode, and due to the fact that the accuracy of the wireless communication mode is limited, when the cleaning robot 200 is in a short-range, the optical signal/sound wave signal is started again, the cleaning robot 200 can accurately return to the recharging seat 300, and therefore the system is more intelligent. It should be noted that the signal emitter 33 and the signal receiver 23 may also adopt other optical signal devices or other acoustic signal devices, and are not limited to the above case.

Referring to fig. 7, in some embodiments, the recharging base 300 further includes a first power supply circuit 36, the first power supply circuit 36 is electrically connected to the first switch circuit 32, and the microcontroller 35 controls the first switch circuit 32 to turn on the switch power supply 31 and the first power supply circuit 36 according to the recharging signal received by the second wireless communication circuit 34, so that the power supplied by the switch power supply 31 is applied to the first power supply circuit 36 through the first switch circuit 32, and when the cleaning robot 200 moves to the recharging base 300, the first power supply circuit 36 can supply power to the cleaning robot 200.

Therefore, when the cleaning robot 200 needs to be charged, the recharging base 300 controls the first switch circuit 32 to be turned on, so that the switch power supply 31, the first switch circuit 32 and the first power supply circuit 36 form a loop to provide power for the cleaning robot 300.

In some embodiments, the first switching circuit 32 includes a first MOS transistor, a gate of the first MOS transistor is electrically connected to the microcontroller 35, a drain of the first MOS transistor is electrically connected to the switching power supply 31, and a source of the first MOS transistor is electrically connected to the signal emitter 33 and the first power supply circuit 36, respectively. Therefore, when the grid electrode applies high level, the first MOS switch tube is conducted. When the grid electrode applies low level, the first MOS switch tube is cut off. Preferably, the first MOS transistor is a PMOS transistor. In other embodiments, the first MOS transistor may be an NMOS transistor.

In the present embodiment, compared with other switching modes such as relays, the present embodiment uses an electronic switch as the switching circuit 32, which has a long service life, less loss, high efficiency and reliable operation.

In some embodiments, the first power supply circuit 36 includes power supply electrodes, and the power supply electrodes include a third electrode plate and a fourth electrode plate, which are both electrically connected to the first switch circuit 32, and when the cleaning robot 200 is docked with the recharging receptacle 300, the first electrode plate contacts the third electrode plate, and the second electrode plate contacts the fourth electrode plate, so that the first power supply circuit 36 can provide power to the cleaning robot 200.

In some embodiments, the switching power supply 31 may be used as an adapter, or may be separately installed in the recharging base 300.

Referring to fig. 8, the switching power supply 31 includes a rectifying-filtering circuit 311 and a power conversion circuit 312.

The rectifying and filtering circuit 311 is configured to perform rectifying and filtering processing on the external power supply so as to rectify the external power supply into a direct-current power supply and filter out harmonic signals included in the direct-current power supply.

It will be appreciated that the rectifying and filtering circuit 311 may be composed of a rectifying circuit and a filtering circuit formed by any suitable discrete components, for example, the rectifying circuit is a full bridge rectifying circuit and the filtering circuit is an EMI filtering circuit.

The power conversion circuit 312 is electrically connected to the first switch circuit 32 and the microcontroller 35, and is configured to be controlled by the microcontroller 35 to convert the external power source after being rectified and filtered into a preset voltage. In the present embodiment, when the microcontroller 35 sends a high level signal to the first switch circuit 32, the first switch circuit 32 operates in a conducting state, and thus, the power of the power conversion circuit 312 can be output through the first switch circuit 32. When the microcontroller 35 sends a low level signal to the first switch circuit 32, the first switch circuit 32 operates in an off state, and thus the first switch circuit 32 cuts off the power output of the power conversion circuit 312.

In some embodiments, the power conversion circuit 312 may be a voltage conversion circuit formed by any suitable discrete components, for example, the power conversion circuit 312 employs a Buck circuit.

In some embodiments, the switching power supply 31 further includes a voltage detection circuit 313, the voltage detection circuit 313 is electrically connected to the first switching circuit 32 and the microcontroller 35 respectively, and is configured to detect an electrical signal flowing through the first switching circuit 32, the microcontroller 35 determines whether to perform overvoltage, overcurrent, undervoltage, or undercurrent according to the electrical signal provided by the voltage detection circuit 313, and if yes, controls the operating state of the power conversion circuit 312, so that the voltage or current output by the power conversion circuit 312 meets a preset requirement.

The voltage detection circuit 313 may be a sampling circuit formed by any suitable resistor network, a hall sensor, or the like.

Typically, the refill socket 300 is placed on the floor and the socket is connected for a long period of time. The refill seat 300 is easily polluted due to more dust or water stain on the ground, so that the refill seat 300 is easily short-circuited. Accordingly, in some embodiments, the recharging cradle 300 further comprises a short-circuit protection circuit 314, the short-circuit protection circuit 314 being electrically connected between the first switching circuit 32 and the power supply circuit for performing a short-circuit protection operation.

Referring to fig. 9, the short-circuit protection circuit 314 includes a first transistor Q1, a second transistor Q2, a first capacitor C1, a second capacitor C2, a light emitting diode D1, a first resistor R1, a second resistor R2, and a third resistor R3. When the power supply circuit is short-circuited, the voltage of the collector of the second transistor Q2 and the voltage of the base of the first transistor Q1 are both pulled low, at this time, the first transistor Q1 is turned on, the light emitting diode D1 emits light to prompt short circuit, and then the base of the second transistor Q2 is pulled high, and the second transistor Q2 is turned off, so that the power supply circuit has no voltage output, thereby protecting the cleaning robot 200.

Because the recharging base 300 is connected to the socket for a long time, considering that the commercial power is not stable enough, in some embodiments, the switching power supply 31 further includes a surge protection circuit, and the surge protection circuit is electrically connected between the rectifying and filtering circuit 311 and the power conversion circuit 312, and is used for preventing the surge voltage from damaging the recharging base 300, so as to improve the working reliability of the recharging base 300.

In some embodiments, the surge protection circuit may be selected from protection circuits formed from any suitable discrete components.

In addition to the first power supply circuit 36 providing power to the cleaning robot 200 by using a wired power supply method such as a power supply electrode, in some embodiments, the first power supply circuit 36 may also provide power to the cleaning robot 200 by using a wireless power supply method.

In some embodiments, referring to fig. 10, the difference from the above embodiments is that the first power supply circuit 36 includes an inverter circuit 361 and a wireless transmitting coil 362, the inverter circuit 361 is electrically connected to the microcontroller 35 and the wireless transmitting coil 362, respectively, the microcontroller 35 controls the inverter circuit 361 to convert the direct current provided by the switching power supply 31 into alternating current, and the wireless transmitting coil 362 couples and outputs the alternating current to the wireless receiving coil of the cleaning robot 200, thereby completing energy transmission.

Generally, after the recharging stand 300 transmits the infrared signal, the cleaning robot 200 may move to the recharging stand 300 in a certain time period according to the infrared signal. If the signal transmitter 33 starts to transmit the infrared signal, the switching power supply 31 starts to provide power for the first power supply circuit 36 through the first switching circuit 32, which may cause a certain energy loss, and is not energy-saving and environment-friendly.

Therefore, in some embodiments, different from the above embodiments, please refer to fig. 11, the recharging stand 300 further includes a second power supply circuit 37, a second switch circuit 38, and a presence sensor 39, the switch power supply 31 is connected to the second power supply circuit 37 through the second switch circuit 38, the microcontroller 35 is electrically connected to the presence sensor 58 and the second switch circuit 38, respectively, and the microcontroller 35 controls the second switch circuit 38 to turn on the switch power supply 31 and the second power supply circuit 37 according to a detection signal of the presence sensor 39.

In this embodiment, when the cleaning robot 200 moves to the recharging station 300, the cleaning robot 200 moves to a preset position of the recharging station 300, or the charging electrode of the cleaning robot 200 is connected to the power supply electrode of the recharging station 300, or the wireless transmitting coil is opposite to the wireless receiving coil, the presence sensor 39 detects that the cleaning robot 200 is in position or in position, and generates a detection signal, at this time, the cleaning robot 200 and the recharging station 300 complete the charging positioning operation, and then the microcontroller 35 controls the second switch circuit 38 to conduct the switch power supply 31 and the second power supply circuit 37 according to the detection signal of the presence sensor 39, so that the switch power supply 31 provides the working power supply for the cleaning robot 200 through the second power supply circuit 37, for example, when the recharging signal is detected, the microcontroller 35 sends a high level to the first switch circuit 32, so that the first switch circuit 32 is in a conducting state, then, the switching power supply 31 supplies the operating power to the signal transmitter 33 through the first switching circuit 32. Subsequently, when the detection signal is detected, the microcontroller 35 sends a high level to the second switch circuit 38, so that the second switch circuit 38 is in a conducting state, so that the switch power supply 31 supplies the working power to the second power supply circuit 37 through the second switch circuit 38, and the second power supply circuit 37 transmits the working power to the cleaning robot 200.

After the cleaning robot 200 is charged, the recharging base 300 is moved out, the on-site sensor 39 sends a trigger signal to the microcontroller 35, and the microcontroller 35 controls the first switch circuit 32 to be in a cut-off state according to the trigger signal, so that the switch power supply 31 cannot provide working power supply for the second power supply circuit 37 through the second switch circuit 38.

Therefore, by adopting the circuit structure, the electric energy can be saved, and the circuit structure is safe and avoids electric shock.

In some embodiments, the presence sensor is a hall sensor, a piezoelectric sensor, a capacitive sensor, or a tact switch.

In some embodiments, the first switching circuit 32 includes a first MOS transistor, a gate of the first MOS transistor is electrically connected to the microcontroller 35, a drain of the first MOS transistor is electrically connected to the switching power supply 31, and a source of the first MOS transistor is electrically connected to the signal emitter 33. The second switching circuit 38 includes a second MOS transistor, a gate of the second MOS transistor is electrically connected to the microcontroller 35, a drain of the second MOS transistor is electrically connected to the switching power supply 31, and a source of the second MOS transistor is electrically connected to the second power supply circuit 37. Therefore, when the grid electrode is applied with a high level, the first MOS switch tube is conducted with the second MOS switch tube. When the grid electrode applies low level, the first MOS switch tube and the second MOS switch tube are cut off. Preferably, the first MOS transistor and the second MOS transistor are PMOS transistors. In other embodiments, the transistor may be an NMOS transistor.

In some embodiments, the difference from the above embodiments is that, referring to fig. 12, the recharging base 300 further includes a micro relay 40, a freewheel circuit 41, a sampling circuit 42, a third switch circuit 43, and a third power supply circuit 44.

The micro relay 40 comprises a relay coil 401, a fixed contact 402 and a movable contact 403, the switching power supply 31 is electrically connected with the relay coil 401 and the fixed contact 402 respectively, the movable contact 403 is electrically connected with the sampling circuit 42, the microcontroller 35 is electrically connected with the sampling circuit 42, and the follow current circuit 41 is connected in parallel with two ends of the relay coil 401.

The first switch circuit 32 is an NPN transistor, wherein the signal transmitter 33 is electrically connected between a collector of the NPN transistor and the relay coil 401, a base thereof is electrically connected to the microcontroller 35, and an emitter thereof is grounded.

The third switching circuit 43 is electrically connected between the switching power supply 31 and the third power supply circuit 44, and the third switching circuit 43 is also electrically connected with the microcontroller 35.

When the recharging signal is detected, the microcontroller 35 sends a high level to the NPN transistor, so that the NPN transistor is turned on, the current supplied from the switching power supply 31 sequentially flows through the relay coil 401 and the signal transmitter 33, and on one hand, the relay coil 401 controls the fixed contact 402 and the movable contact 403 to be turned on and off, so that the signal transmitter 33 generates an infrared signal, and the voltage supplied from the switching power supply 31 is sequentially applied to the sampling circuit 42 and the third power supply circuit 44, and when the third power supply circuit 44 is a power supply electrode and the charging electrode of the cleaning robot 200 is butted with the power supply electrode, so that the switching power supply 31, the sampling circuit 42, the third power supply circuit 44, and the charging electrode form a loop, so that the sampling voltage of the sampling circuit 42 changes, the microcontroller 35 detects the change of the sampling voltage, and then, controls the third switching circuit 43 to be turned on, and the power supplied from the switching power supply 31 can be transmitted to the third power supply circuit 44 through the third switching circuit 43, the third power supply circuit 44 is transmitted to the cleaning robot 200 again, thereby implementing the charging operation of the cleaning robot 200.

On the other hand, after the micro-controller 35 detects the change of the sampling voltage, it sends a low level to the NPN transistor, so that the NPN transistor is turned off, the switching power supply 31, the relay coil 401 and the NPN transistor circuit are disconnected, no power is supplied to the relay coil 401, the signal transmitter 33 does not operate, the relay coil 401 completes the release operation through the freewheel circuit 41, and then the stationary contact 402 is disconnected from the movable contact 403.

After the cleaning robot 200 is charged, the recharging base 300 is moved out, the on-site sensor 39 sends a trigger signal to the microcontroller 35, and the microcontroller 35 controls the third switching circuit 43 to be in a cut-off state according to the trigger signal, so that the switching power supply 31 cannot provide working power for the third power supply circuit 44 through the third switching circuit 43.

By adopting the circuit structure, whether the cleaning robot 200 is rightly reset can be detected through a plurality of simple resistance components, the power consumption of the signal emitter 33 can be saved, and the linkage is good.

Finally, it is to be understood that the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are intended as additional limitations on the scope of the invention, as these embodiments are provided so that the disclosure will be thorough and complete. In addition, under the idea of the present invention, the above technical features are combined with each other continuously, and many other variations of the present invention in different aspects as described above are considered as the scope of the present invention; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims (11)

1. A cleaning system comprises a cleaning robot and a recharging seat, and is characterized in that,

the cleaning robot comprises a power circuit, a signal receiver, a first wireless communication circuit and a main controller, wherein the main controller is respectively electrically connected with the power circuit, the signal receiver and the first wireless communication circuit, the power circuit comprises a main power supply, and the main controller controls the first wireless communication circuit to transmit a recharging signal according to the electric quantity of the main power supply;

the recharging seat comprises a switching power supply, a first switching circuit, a signal transmitter, a second wireless communication circuit and a microcontroller, the switching power supply is connected with the signal transmitter through the first switching circuit, the microcontroller is respectively electrically connected with the second wireless communication circuit and the first switching circuit, and the microcontroller controls the first switching circuit to be connected with the switching power supply and the signal transmitter according to the recharging signal received by the second wireless communication circuit.

2. The cleaning system of claim 1, wherein the recharging station further comprises a power supply circuit electrically connected to the first switching circuit, and the microcontroller controls the switching circuit to conduct the switching power supply and the power supply circuit according to the recharging signal received by the second wireless communication circuit.

3. The cleaning system of claim 2, wherein the first switch circuit comprises a first MOS transistor, a gate of the first MOS transistor is electrically connected to the microcontroller, a drain of the first MOS transistor is electrically connected to the switch power supply, and a source of the first MOS transistor is electrically connected to the signal transmitter and the power supply circuit, respectively.

4. The cleaning system of claim 1, wherein the recharging seat further comprises a power supply circuit, a second switch circuit and an on-position sensor, the switch power supply is connected with the power supply circuit through the second switch circuit, the microcontroller is electrically connected with the on-position sensor and the second switch circuit respectively, and the microcontroller controls the second switch circuit to conduct the switch power supply and the power supply circuit according to a detection signal of the on-position sensor.

5. The cleaning system of claim 4,

the first switch circuit comprises a first MOS tube, the grid electrode of the first MOS tube is electrically connected with the microcontroller, the drain electrode of the first MOS tube is electrically connected with the switch power supply, and the source electrode of the first MOS tube is electrically connected with the signal emitter;

the second switch circuit comprises a second MOS tube, the grid electrode of the second MOS tube is electrically connected with the microcontroller, the drain electrode of the second MOS tube is electrically connected with the switch power supply, and the source electrode of the second MOS tube is electrically connected with the power supply circuit.

6. The cleaning system of claim 4, wherein the presence sensor is a Hall sensor, a piezoelectric sensor, a capacitive sensor, a tact switch, or an opto-coupler sensor.

7. The cleaning system of any one of claims 2 to 6,

the supply circuit includes a supply electrode, or

The power supply circuit includes a wireless transmit coil.

8. The cleaning system of any one of claims 2 to 6, wherein the switching power supply comprises:

the rectification filter circuit is electrically connected with an external power supply;

and the power supply conversion circuit is electrically connected with the first switch circuit and the rectification filter circuit respectively.

9. The cleaning system of claim 8, wherein the switching power supply further comprises a voltage detection circuit electrically connected to the first switching circuit and the microcontroller, respectively.

10. The cleaning system of claim 8, wherein the switching power supply further comprises a short-circuit protection circuit electrically connected between the first switching circuit and the power supply circuit.

11. The cleaning system of any one of claims 1 to 6, wherein the signal receiver is an infrared receiver and the signal emitter is an infrared emitter.

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