Cleaning device and base station thereof

Abstract

Provided are a cleaning device (1) and a base station (20) thereof. The base station (20) comprises a maintenance component (207), a power supply positive electrode (201), a power supply negative electrode (202), a base station charging positive electrode (203), a base station charging negative electrode (204), a voltage measurement circuit (205), and a controller (206). The base station charging positive electrode (203) is electrically connected to the power supply positive electrode (201), and the base station charging negative electrode (204) is electrically connected to the power supply negative electrode (202). The voltage measurement circuit (205) is electrically connected between the power supply positive electrode (201) and the base station charging positive electrode (203). The controller (206) comprises a detection port (208) and a control port (209), the detection port (208) is electrically connected to the voltage measurement circuit (205), and the control port (209) is electrically connected to the maintenance component (207). The controller (206) detects a voltage signal of the voltage measurement circuit (205) by means of the detection port (208), and controls the maintenance component (207) by means of the control port on the basis of the voltage signal.

Description

Cleaning device and base station thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning devices, and in particular to a cleaning device and a base station thereof. BACKGROUND

[0002] With the continuous improvement of people's requirements for life convenience, various types and functional small household appliances are emerging in an endless stream. For example, various types of cleaning devices including robots, vacuum cleaners, floor washing machines, and floor sweeping machines. SUMMARY

[0003] The present application provides a cleaning device and a base station thereof which avoid signal interference.

[0004] The present application provides a base station of a cleaning device, comprising: a maintenance component; a power supply positive electrode and a power supply negative electrode for electrical connection with a power supply; a base station charging positive electrode and a base station charging negative electrode for electrical connection with a host of the cleaning device; the base station charging positive electrode is electrically connected to the power supply positive electrode, and the base station charging negative electrode is electrically connected to the power supply negative electrode and both are electrically connected to a ground terminal; a voltage detection circuit electrically connected between the power supply positive electrode and the base station charging positive electrode; and a controller comprising a detection port and a control port, the detection port is electrically connected to the voltage detection circuit, and the control port is electrically connected to the maintenance component; the controller detects the voltage signal of the voltage detection circuit through the detection port, and controls the maintenance component through the control port according to the voltage signal.

[0005] In some embodiments, the voltage detection circuit comprises a detection resistor and a voltage processing circuit, the detection resistor is electrically connected between the power supply positive electrode and the base station charging positive electrode, the detection resistor comprises a first connection end and a second connection end, and the voltage processing circuit is respectively electrically connected between the first connection end of the detection resistor and the detection port, and between the second connection end of the detection resistor and the detection port.

[0006] In some embodiments, the detection port comprises a first detection port and a second detection port; the voltage processing circuit comprises at least two paths of voltage dividing circuits, the at least two paths of voltage dividing circuits comprise a first voltage dividing circuit and a second voltage dividing circuit, the first voltage dividing circuit is electrically connected between the first connection end and the first detection port, and the second voltage dividing circuit is electrically connected between the second connection end and the second detection port; the controller detects the voltage value after voltage division of the first voltage dividing circuit through the first detection port, and detects the voltage value after voltage division of the second voltage dividing circuit through the second detection port.

[0007] In some embodiments, each of the at least two voltage dividing circuits comprises a first voltage dividing resistor and a second voltage dividing resistor connected in series between the detection resistor and the negative pole of the power supply, and the detection port is electrically connected between the first voltage dividing resistor and the second voltage dividing resistor.

[0008] In some embodiments, the voltage processing circuit further comprises a first current limiting resistor electrically connected between the detection port and one of the at least two voltage dividing circuits.

[0009] In some embodiments, the voltage processing circuit further comprises a first filter capacitor electrically connected between the detection port and the negative pole of the power supply.

[0010] In some embodiments, the voltage processing circuit comprises an analog sampler comprising a first input, a second input and an analog output, the first input of the analog sampler is electrically connected to the first connection end of the detection resistor, the second input of the analog sampler is electrically connected to the second connection end of the detection resistor, and the analog output of the analog sampler is electrically connected to the detection port; the controller detects the differential voltage output by the analog sampler through the detection port.

[0011] In some embodiments, the voltage processing circuit further comprises a second current limiting resistor electrically connected between the first connection end and the first input.

[0012] In some embodiments, the voltage processing circuit further comprises a third current limiting resistor electrically connected between the second connection end and the second input.

[0013] In some embodiments, the voltage processing circuit further comprises a fourth current limiting resistor electrically connected between the analog output and the detection port.

[0014] In some embodiments, the voltage processing circuit further comprises a second filter capacitor electrically connected between the first input and the second input.

[0015] In some embodiments, the voltage processing circuit further comprises a voltage stabilizing diode electrically connected between the detection port and the analog output.

[0016] In some embodiments, the base station further comprises a power supply switching circuit electrically connected between the positive pole of the power supply and the voltage processing circuit; the controller further comprises an enable port electrically connected to the power supply switching circuit, and the controller controls the on-off of the power supply switching circuit through the enable port.

[0017] In some embodiments, the power supply switching circuit includes a first switch and a second switch, the first switch is electrically connected to the enable port, the second switch is electrically connected between the positive pole of the power supply and the voltage detection circuit, and is electrically connected to the first switch; the controller controls the on-off of the first switch through the enable port to control the on-off of the second switch.

[0018] In some embodiments, the base station further includes an anti-static circuit electrically connected between the base station charging positive pole and the base station charging negative pole.

[0019] The application also provides a cleaning device, including: a host and a base station of the cleaning device according to any one of the above embodiments, the host can be docked with the base station or separated from the base station; the host includes a host charging positive pole and a host charging negative pole; when the host is docked with the base station, the host charging positive pole is electrically connected to the base station charging positive pole of the base station, and the host charging negative pole is electrically connected to the base station charging negative pole of the base station and is electrically connected to a ground terminal.

[0020] The cleaning device and the base station provided by the embodiments of the application. By electrically connecting the voltage detection circuit of the base station between the positive pole of the power supply and the base station charging positive pole, and electrically connecting the base station charging negative pole of the base station to the negative pole of the power supply and to the ground terminal, the base station charging positive pole is used for signal collection, and the base station charging negative pole and the negative pole of the power supply are grounded, which solves the problem of interference of the negative pole of the power supply on communication, avoids signal interference during detection, improves stability and anti-interference capability, and simplifies the circuit structure.

[0021] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 shows a principle block diagram of one embodiment of the cleaning device of the application.

[0023] Fig. 2 shows a principle block diagram of another embodiment of the cleaning device of the application.

[0024] Fig. 3 shows a principle block diagram of another embodiment of the cleaning device of the application.

[0025] Fig. 4 shows a principle block diagram of another embodiment of the cleaning device of the application.

[0026] Fig. 5 shows a circuit diagram of one embodiment of the cleaning device shown in Fig. 4.

[0027] Fig. 6 shows a circuit diagram of another embodiment of the cleaning device shown in Fig. 4. DETAILED DESCRIPTION

[0028] The cleaning device and the base station thereof provided by the embodiments of the present application will be described in detail below with reference to the drawings. The features in each of the embodiments and implementation forms described below can be combined with each other as long as there is no conflict.

[0029] The cleaning device 1 of the present application can be a handheld cleaning device, a passive cleaning device such as a scrubber, etc. The cleaning device 1 can also be a cleaning robot such as a mopping robot, a sweeping and mopping integrated robot, etc., which is not limited in the present application. In the field of cleaning devices, the cleaning device is charged or cleaned by the base station. In the related art, the negative electrode of the power supply of the base station is not in the same position as the negative electrode of the charging of the base station, which is easy to cause signal interference.

[0030] FIG. 1 shows a principle block diagram of one embodiment of the cleaning device 1 of the present application. As shown in FIG. 1, the cleaning device 1 includes a host 10 and a base station 20, and the host 10 can be docked with the base station 20 or separated from the base station 20. The host 10 is used in conjunction with the base station 20. When the host 10 is separated from the base station 20, the host 10 can independently clean the ground, including the functions of dust collection, sweeping and mopping, etc. When the host 10 is docked with the base station 20, the base station 20 is connected to an external power adapter, and the base station 20 can be electrically connected to the power supply through the power adapter. The base station 20 can serve as a charging device for the host 10 to charge the host 10. In addition, the base station 20 can also communicate with the host 10 and maintain the host 10 according to the instructions of the host 10, such as self-cleaning of the brush, drying of the brush, spraying cleaning of the sewage tank, water replenishment of the clean water tank, etc.

[0031] In the embodiment shown in FIG. 1, the host 10 includes a host charging positive pole 101 and a host charging negative pole 102. The host charging positive pole 101 and the host charging negative pole 102 are used to electrically connect with the base station 20. The base station 20 includes a power supply positive pole 201, a power supply negative pole 202, a base station charging positive pole 203 and a base station charging negative pole 204. The power supply positive pole 201 and the power supply negative pole 202 are used to electrically connect with the power supply 40. In this embodiment, the power supply 40 can be alternating current provided by a live wire L and a neutral wire N. The base station 20 connects with the external power adapter 30 through the power supply positive pole 201 and the power supply negative pole 202, and the power adapter 30 is electrically connected with the power supply 40. The base station charging positive pole 203 is electrically connected with the power supply positive pole 201, and the base station charging negative pole 204 is electrically connected with the power supply negative pole 202 and both are electrically connected with a ground terminal GND. The base station charging positive pole 203 and the base station charging negative pole 204 are used to electrically connect with the host 10. As shown in FIG. 1, when the host 10 is docked with the base station 20, the host charging positive pole 101 is electrically connected with the base station charging positive pole 203, the host charging negative pole 102 is electrically connected with the base station charging negative pole 204 and both are electrically connected with the ground terminal, i.e. the host charging negative pole 102 and the base station charging negative pole 204 are commonly connected with the ground terminal. The power supply positive pole 201 is electrically connected with the host charging positive pole 101 through the base station charging positive pole 203. The power supply negative pole 202 is electrically connected with the host charging negative pole 102 through the base station charging negative pole 204. The base station charging negative pole 204 and the host charging negative pole 102 are commonly connected with the ground terminal. That is, the power supply negative pole 202, the base station charging negative pole 204 and the host charging negative pole 102 are directly connected with the ground terminal, and the anti-interference ability is strong. When the base station 20 is docked with the host charging positive pole 101 and the host charging negative pole 102 of the host 10 through the base station charging positive pole 203 and the base station charging negative pole 204, the base station 20 can be used as a charging device of the host 10 to supply power to the host 10.

[0032] In addition, the base station 20 can also communicate with the host 10. After the host 10 and the base station 20 of the cleaning device 1 are docked, the host 10 maintenance program can be automatically or manually started (for example, through a self-cleaning button, program software, etc.). The functions of maintaining the host 10 mainly include self-cleaning of the brush, drying of the brush, spraying cleaning of the sewage tank, water replenishment of the clean water tank, etc. In some embodiments, the cleaning device 1 takes self-cleaning and drying as an example. In the related art, after the self-cleaning of the brush is completed, the host 10 sends a drying signal to the base station 20 through the communication line, and the base station 20 starts the heating element to dry the brush after receiving the drying signal. The cleaning device 1 of the present embodiment cancels the communication line, and in terms of software, a pulse signal with a preset number of continuous pulses (such as 4), a preset pulse width (such as 20 ms), and a preset duty cycle (such as 50%) is configured as a drying signal. When the self-cleaning button is pressed, the host 10 starts the self-cleaning of the brush, and after the self-cleaning is completed (which can be determined by timing), the host 10 needs to issue a drying instruction to the base station 20, and by controlling the charging control switch (not shown) connected to the host charging positive pole 101 in the host 10, the current at the host charging positive pole 101 of the host 10 assumes a predetermined pulse shape, and the host 10 periodically sends a continuous preset number of pulse signals. When the base station 20 receives the continuous preset number of pulse signals, the corresponding maintenance components are controlled to perform the corresponding maintenance functions. When the pulse signal disappears or is not present, the maintenance components are controlled after a period of time. In this way, the base station 20 and the host 10 will communicate and supply power through the same port, and the communication function and the power supply function are combined, thereby effectively utilizing the port resources, simplifying the circuit, and reducing the number of wire harnesses.

[0033] In the embodiment shown in FIG. 1, the base station 20 further comprises a voltage detection circuit 205, a controller 206 and a maintenance component 207. The voltage detection circuit 205 is electrically connected between the positive pole 201 of the power supply and the positive pole 203 of the base station charging. The voltage detection circuit 205 is used to detect the voltage flowing from the positive pole 201 of the power supply to the positive pole 203 of the base station charging. The controller 206 comprises a detection port 208 and a control port 209, the detection port 208 is electrically connected with the voltage detection circuit 205, and the control port 209 is electrically connected with the maintenance component 207. The controller 206 detects the voltage signal of the voltage detection circuit 205 through the detection port 208, and controls the maintenance component 207 through the control port 209 according to the voltage signal. The maintenance component 207 can be a heating wire, a fan or the like, which is not limited in the present application. The controller 206 controls the maintenance component 207 to perform corresponding maintenance functions, which include at least one of self-cleaning of the floor brush, drying of the floor brush, spraying cleaning of the sewage tank, and water replenishment of the clean water tank, which are not limited in the present application. In the embodiment, the voltage detection circuit 205 is electrically connected between the positive pole 201 of the power supply and the positive pole 203 of the base station charging, and the negative pole 204 of the base station charging of the base station 20 is electrically connected with the negative pole 202 of the power supply and is commonly connected to the ground terminal, so as to realize the scheme that the positive pole 203 of the base station charging performs signal collection, and the negative pole 204 of the base station charging and the negative pole 202 of the power supply are grounded, so as to solve the problem of interference of the negative pole 202 of the power supply on communication, avoid signal interference in the detection process, and thus improve the stability and anti-interference ability, and simplify the circuit structure.

[0034] FIG. 2 shows a principle block diagram of another embodiment of the cleaning equipment 1 of the present application. The embodiment shown in FIG. 2 is similar to the embodiment shown in FIG. 1, and the main difference is that, in the embodiment shown in FIG. 2, the voltage detection circuit 205 comprises a detection resistor R1 and a voltage processing circuit 210. The detection resistor R1 is electrically connected between the positive pole 201 of the power supply and the positive pole 203 of the base station charging. The detection resistor R1 comprises a first connection end R11 and a second connection end R12, the first connection end R11 is electrically connected with the positive pole 201 of the power supply, and the second connection end R12 is electrically connected with the positive pole 203 of the base station charging. The voltage processing circuit 210 is electrically connected between the first connection end R11 of the detection resistor R1 and the detection port 208, and between the second connection end R12 of the detection resistor R1 and the detection port 208, respectively. The voltage processing circuit 210 is used to process the voltage between the first connection end R11 and the second connection end R12 of the detection resistor R1. The controller 206 detects the voltage output by the voltage processing circuit 210 through the detection port 208, and controls the maintenance component 207 to perform corresponding maintenance functions through the control port 209 according to the voltage. The detection resistor R1 and the voltage processing circuit 210 are used in cooperation, which can make the circuit structure simple and the cost low.

[0035] Figure 3 shows a schematic block diagram of another embodiment of the cleaning apparatus 1 according to the present application. The embodiment shown in Figure 3 is similar to the embodiment shown in Figure 2, the main difference being that in the embodiment shown in Figure 3, the base station 20 further comprises a power supply switch circuit 211 electrically connected between the positive pole 201 of the power supply and the voltage detection circuit 205. In the embodiment shown in Figure 3, the power supply switch circuit 211 is electrically connected between the positive pole 201 of the power supply and the detection resistor R1, and is used to control the connection between the positive pole 201 of the power supply and the voltage detection circuit 205 (e.g. the detection resistor R1). The controller 206 further comprises an enable port 212 electrically connected to the power supply switch circuit 211, and the controller 206 controls the connection of the power supply switch circuit 211 through the enable port 212. When the controller 206 outputs a valid enable signal (e.g. a high level) through the enable port 212, the power supply switch circuit 211 is controlled to be turned on, so that the positive pole 201 of the power supply is connected to the voltage detection circuit 205 (e.g. the detection resistor R1). In this case, the voltage of the voltage processing circuit 210 can be detected through the detection port 208. When detection is not required, the controller 206 outputs a low level through the enable port 212 to control the power supply switch circuit 211 to be turned off, so that the positive pole 201 of the power supply is disconnected from the voltage detection circuit 205 (e.g. the detection resistor R1). In this way, the connection between the power supply 40 and the base station 20 can be effectively controlled by providing the power supply switch circuit 211.

[0036] Figure 4 shows a schematic block diagram of another embodiment of the cleaning apparatus 1 according to the present application. The embodiment shown in Figure 4 is similar to the embodiment shown in Figure 3, the main difference being that in the embodiment shown in Figure 4, the base station 20 further comprises an anti-static circuit 213 electrically connected between the base station charging positive pole 203 and the base station charging negative pole 204. In this embodiment, the base station charging negative pole 204 and the power supply negative pole 202 are both connected to the ground terminal GND. By providing the anti-static circuit 213 between the base station charging positive pole 203 and the base station charging negative pole 204 (ground terminal), the anti-static capability between the base station charging positive pole 203 and the base station charging negative pole 204 can be improved, signal interference can be avoided, and stability can be improved.

[0037] Figure 5 shows a circuit diagram of one embodiment of the cleaning device 1 shown in Figure 4. As shown in Figure 5, the detection port 208 includes a first detection port 2081 and a second detection port 2082. The voltage processing circuit 210 includes at least two voltage dividing circuits 214, which include a first voltage dividing circuit and a second voltage dividing circuit, the first voltage dividing circuit being electrically connected between the first connection end R11 and the first detection port 2081, and the second voltage dividing circuit being electrically connected between the second connection end R12 and the second detection port 2082. The controller 206 detects the voltage value after voltage division of the first voltage dividing circuit through the first detection port 2081, and detects the voltage value after voltage division of the second voltage dividing circuit through the second detection port 2082. When the controller 206 continuously detects the voltage difference of the first voltage dividing circuit and the second voltage dividing circuit through the first detection port 2081 and the second detection port 2082, and determines that the voltage difference is a valid signal, the controller 206 controls the maintenance components of the base station 20 to work. When the voltage difference is lost or not, the maintenance components are automatically stopped after a period of time. Different maintenance functions are performed by different maintenance components, and the number of pulses and pulse width of the corresponding detection signal are different, which can be designed according to actual needs. That is, the voltage detection circuit 205 is connected between the positive electrode 201 of the power supply and the positive electrode 203 of the base station for signal acquisition. In this embodiment, the voltage across the detection resistor R1 is divided by the first voltage dividing circuit and the second voltage dividing circuit, and then detected by the two detection ports of the controller 206, and the two divided voltage signals are analyzed to ensure the validity of the signal, thereby improving the safety and reliability.

[0038] In the embodiment shown in Figure 5, the voltage dividing circuit 214 includes a first voltage dividing resistor R2 and a second voltage dividing resistor R3 connected in series between the detection resistor R1 and the negative electrode 202 (ground GND), and the detection port 208 is electrically connected between the first voltage dividing resistor R2 and the second voltage dividing resistor R3. In this embodiment, the first detection port 2081 is electrically connected between the first voltage dividing resistor R2 and the second voltage dividing resistor R3, and the second detection port 2082 is electrically connected between the first voltage dividing resistor R2 and the second voltage dividing resistor R3. The voltage is divided by the first voltage dividing resistor R2 and the second voltage dividing resistor R3 to adjust to the required voltage, ensure voltage matching and compatibility, thereby ensuring that the device is not damaged and the circuit operates stably. The circuit connection mode and circuit structure of the first voltage dividing circuit and the second voltage dividing circuit can be the same or different. The resistance values of the first voltage dividing resistor R2 and the second voltage dividing resistor R3 can be set according to actual needs, and can be the same or different, without limitation.

[0039] In the embodiment shown in FIG. 5, the voltage processing circuit 210 further comprises a first current-limiting resistor R4 electrically connected between the detection port 208 and the voltage dividing circuit 214. In the embodiment, the first current-limiting resistor R4 is electrically connected between the first detection port 2081 and the first voltage dividing circuit, and electrically connected between the second detection port 2082 and the second voltage dividing circuit. By setting the first current-limiting resistor R4, the safety can be improved by preventing the current from being too large to burn the device. The voltage processing circuit 210 further comprises a first filter capacitor C1 electrically connected between the detection port 208 and the power supply negative pole 202 (ground GND). In the embodiment, the first filter capacitor C1 is electrically connected between the first detection port 2081 and the power supply negative pole 202 (ground GND), and electrically connected between the second detection port 2082 and the power supply negative pole 202 (ground GND). By setting the first filter capacitor C1, the signal interference can be reduced by filtering.

[0040] In the embodiment shown in FIG. 5, the power supply switching circuit 211 comprises a first switch tube Q1 electrically connected to the enable port 212 of the controller 206, and a second switch tube Q2 electrically connected between the power supply positive pole 201 and the voltage detection circuit 205, and electrically connected to the first switch tube Q1; the controller 206 controls the on-off of the first switch tube Q1 through the enable port 212 to control the on-off of the second switch tube Q2. In the embodiment, the first switch tube Q1 can be a triode, and the second switch tube Q2 can be a P-type MOS tube. The controller 206 outputs a high level through the enable port 212 to control the triode Q1 to be turned on, at this time, the control end of the P-type MOS tube is grounded and a low level is effective to make the P-type MOS tube turned on to make the power supply positive pole 201 and the detection resistor R1 connected. When the power supply positive pole 201 and the detection resistor R1 are connected, the controller 206 detects the effectiveness through the detection port. In the embodiment, the on-off of the second switch tube Q2 is controlled by controlling the on-off of the first switch tube Q1, so that the circuit structure is simple and stable and reliable.

[0041] In the embodiment shown in FIG. 5, the power supply switching circuit 211 further comprises a resistor R5 electrically connected between the enable port 212 of the controller 206 and the first pole of the first switch tube Q1. The first pole of the first switch tube Q1 can be a base. The resistor R5 can prevent the current from being too large to burn the first switch tube Q1, and can improve the safety. The power supply switching circuit 211 further comprises a resistor R6 electrically connected between the first pole and the second pole of the first switch tube Q1. The second pole of the first switch tube Q1 can be an emitter, and the emitter is electrically connected to the ground end GND. The resistor R6 can prevent the first switch tube Q1 from being mis-triggered, and thus the safety can be improved.

[0042] In the embodiment shown in FIG. 5, the power supply switch circuit 211 further comprises a resistor R7 electrically connected between the third pole of the first switch tube Q1 and the first pole of the second switch tube Q2. The third pole of the first switch tube Q1 can be a collector. The first pole of the second switch tube Q2 can be a gate. The resistor R7 functions to limit current, preventing excessive current from damaging the second switch tube Q2 and improving safety. The power supply switch circuit 211 further comprises a resistor R8 electrically connected between the first pole and the second pole of the second switch tube Q2. The second pole of the second switch tube Q2 can be a drain, which is electrically connected to the positive pole 201 of the power supply. The third pole of the second switch tube Q2 can be a source, which is electrically connected to the detection resistor R1. The resistor R8 prevents the second switch tube Q2 from being triggered by mistake, thereby improving safety. The power supply switch circuit 211 further comprises a voltage stabilizing diode D1 electrically connected between the first pole and the second pole of the second switch tube Q2. The voltage stabilizing diode D1 functions to clamp voltage and stabilize voltage. When the enable port 212 of the controller 206 outputs a high level, the first switch tube Q1 is turned on, at which time the first pole of the second switch tube Q2 is connected to the ground GND, and the low level effectively turns on the second pole and the third pole of the second switch tube Q2, so as to turn on the positive pole 201 of the power supply and the positive pole 203 of the base station, thereby ensuring detection effectiveness.

[0043] In the embodiment shown in FIG. 5, the anti-static circuit 213 comprises at least one anti-static device 2131, which can be at least one of a capacitor, a voltage stabilizing diode, a resistor, etc. The anti-static device 2131 functions to prevent static electricity and improve safety. The number and type of the anti-static device 2131 can be set according to actual needs, which are not limited in the present application.

[0044] Figure 6 is a circuit diagram of another embodiment of the cleaning device 1 shown in Figure 4. The embodiment shown in Figure 6 is similar to the embodiment shown in Figure 5, the main difference being that the voltage processing circuit 210 comprises an analog collector 215, which comprises a first input end 2151, a second input end 2152 and an analog output end 2153. The first input end 2151 of the analog collector 215 is electrically connected to the first connecting end R11 of the detection resistor R1, the second input end 2152 of the analog collector 215 is electrically connected to the second connecting end R12 of the detection resistor R1, and the analog output end 2153 of the analog collector 215 is electrically connected to the detection port 208 of the controller 206. In this embodiment, the first input end 2151 of the analog collector 215 can be a positive input end, and the second input end 2152 of the analog collector 215 can be a negative input end. The first connecting end R11 is electrically connected to the positive input end. The second connecting end R12 is electrically connected to the negative input end. The controller 206 detects the differential voltage output by the analog collector 215 through the detection port 208. In this embodiment, the voltage across the detection resistor R1 is processed by the differential operation of the analog collector 215, and a voltage value is output. The controller 206 detects the differential voltage of the analog output end 2153 of the analog collector 215 through one detection port 208, and when the differential voltage is determined to be a valid signal, the maintenance component 207 of the base station 20 is controlled to work. When the differential voltage is lost or not, the maintenance component 207 is automatically stopped after a period of time. By setting the analog collector 215 to detect the voltage across the detection resistor R1 and performing differential operation, the detection result is more accurate, and the safety and reliability are improved. Compared with the embodiment shown in Figure 5, the embodiment shown in Figure 6 can reduce the number of ports of the controller 206, the circuit structure is simple, and the number of parts is small.

[0045] In the embodiment shown in FIG. 6, the voltage processing circuit 210 further comprises a second current-limiting resistor R9 electrically connected between the first connecting terminal R11 and the first input terminal 2151. The second current-limiting resistor R9 functions to limit current, preventing excessive current from damaging the analog collector 215 and improving safety. The voltage detection circuit 205 further comprises a third current-limiting resistor R10 electrically connected between the second connecting terminal R12 and the second input terminal 2152. The third current-limiting resistor R10 functions to limit current, preventing excessive current from damaging the analog collector 215 and improving safety. The voltage detection circuit 205 further comprises a fourth current-limiting resistor R51 electrically connected between the analog output terminal 2153 and the detection port 208 of the controller 206. The fourth current-limiting resistor R51 functions to limit current, preventing excessive current from damaging the controller 206 and improving safety. The voltage detection circuit 205 further comprises a second filter capacitor C2 electrically connected between the first input terminal 2151 and the second input terminal 2152. The second filter capacitor C2 functions to filter signals, reducing signal interference. The voltage detection circuit 205 further comprises a voltage stabilizing diode D2 electrically connected between the detection port 208 and the analog output terminal 2153. The voltage stabilizing diode D2 functions to stabilize voltage, improving safety.

[0046] In the embodiment shown in FIG. 6, the voltage processing circuit 210 further comprises a resistor R52 electrically connected between the second input terminal 2152 and the analog output terminal 2153, functioning to limit current. The voltage processing circuit 210 further comprises a resistor R53 electrically connected between the first input terminal 2151 and the ground terminal GND. The voltage processing circuit 210 further comprises a filter capacitor C3 electrically connected between the power supply terminal of the analog collector 215 and the ground terminal GND. The power supply terminal of the analog collector 215 is also electrically connected to the base station charging positive terminal 203.

[0047] It should be understood that the application is not limited to the precise construction which has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the claims which follow.

Claims

1. A base station of a cleaning device, comprising: a maintenance component; a power supply positive pole and a power supply negative pole for electrically connecting with a power supply; a base station charging positive pole and a base station charging negative pole for electrically connecting with a host of the cleaning device; the base station charging positive pole is electrically connected with the power supply positive pole, the base station charging negative pole is electrically connected with the power supply negative pole and is electrically connected with a ground terminal; a voltage detection circuit electrically connected between the power supply positive pole and the base station charging positive pole; and a controller comprising a detection port and a control port, the detection port is electrically connected with the voltage detection circuit, and the control port is electrically connected with the maintenance component; the controller detects a voltage signal of the voltage detection circuit through the detection port, and controls the maintenance component through the control port according to the voltage signal.

2. The base station of claim 1, wherein, The voltage detection circuit comprises a detection resistor and a voltage processing circuit, the detection resistor is electrically connected between the power supply positive pole and the base station charging positive pole, the detection resistor comprises a first connection end and a second connection end, and the voltage processing circuit is electrically connected between the first connection end and the second connection end of the detection resistor and the detection port, respectively.

3. The base station of claim 2, wherein, The detection port comprises a first detection port and a second detection port; the voltage processing circuit comprises at least two voltage dividing circuits, the at least two voltage dividing circuits comprise a first voltage dividing circuit and a second voltage dividing circuit, the first voltage dividing circuit is electrically connected between the first connection end and the first detection port, and the second voltage dividing circuit is electrically connected between the second connection end and the second detection port; the controller detects a voltage value after voltage division of the first voltage dividing circuit through the first detection port and detects a voltage value after voltage division of the second voltage dividing circuit through the second detection port.

4. The base station of claim 3, wherein, Each voltage dividing circuit in the at least two voltage dividing circuits comprises a first voltage dividing resistor and a second voltage dividing resistor connected in series between the detection resistor and the power supply negative pole, and the detection port is electrically connected between the first voltage dividing resistor and the second voltage dividing resistor; and / or The voltage processing circuit further comprises a first current limiting resistor electrically connected between the detection port and one voltage dividing circuit in the at least two voltage dividing circuits; and / or The voltage processing circuit further comprises a first filter capacitor electrically connected between the detection port and the power supply negative pole.

5. The base station of claim 2, wherein, The voltage processing circuit comprises an analog collector, the analog collector comprises a first input end, a second input end and an analog output end, the first input end of the analog collector is electrically connected with the first connection end of the detection resistor, the second input end of the analog collector is electrically connected with the second connection end of the detection resistor, and the analog output end of the analog collector is electrically connected with the detection port; the controller detects a differential voltage output by the analog collector through the detection port.

6. The base station of claim 5, wherein, The voltage processing circuit further comprises a second current limiting resistor electrically connected between the first connection end and the first input end; and / or The voltage detection circuit further comprises a third current-limiting resistor electrically connected between the second connection end and the second input end; and / or The voltage detection circuit further comprises a fourth current-limiting resistor electrically connected between the analog output end and the detection port; and / or The voltage detection circuit further comprises a second filter capacitor electrically connected between the first input end and the second input end; and / or The voltage detection circuit further comprises a voltage stabilizing diode electrically connected between the detection port and the analog output end.

7. The base station of claim 1, wherein, The base station further comprises a power supply switching circuit electrically connected between the power supply positive pole and the voltage detection circuit; the controller further comprises an enable port electrically connected with the power supply switching circuit, and the controller controls the on-off of the power supply switching circuit through the enable port.

8. The base station of claim 7, wherein, The power supply switching circuit comprises a first switch tube and a second switch tube, the first switch tube is electrically connected with the enable port, the second switch tube is electrically connected between the power supply positive pole and the voltage detection circuit, and is electrically connected with the first switch tube; the controller controls the on-off of the first switch tube through the enable port, so as to control the on-off of the second switch tube.

9. The base station of claim 1, wherein, The base station further comprises an anti-static circuit electrically connected between the base station charging positive pole and the base station charging negative pole.

10. A cleaning device, comprising: a host and a base station of the cleaning device according to any one of claims 1 to 9, the host being detachable from or attachable to the base station; the host comprising a host charging positive pole and a host charging negative pole; when the host is attached to the base station, the host charging positive pole is electrically connected with the base station charging positive pole of the base station, the host charging negative pole is electrically connected with the base station charging negative pole of the base station, and both are electrically connected with a ground terminal.

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