CN216056395U - Charging circuit, cleaning device and cleaning system - Google Patents
Charging circuit, cleaning device and cleaning system Download PDFInfo
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- CN216056395U CN216056395U CN202122119956.1U CN202122119956U CN216056395U CN 216056395 U CN216056395 U CN 216056395U CN 202122119956 U CN202122119956 U CN 202122119956U CN 216056395 U CN216056395 U CN 216056395U
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Abstract
The application provides a charging circuit, cleaning device and cleaning system, this charging circuit includes: a power source, a charging electrode connected to the power source for charging the cleaning device, the charging circuit further comprising: a controllable switch connected between the power supply and the charging electrode; wherein the controllable switch is turned on when the cleaning device returns to the base station and turned off when the cleaning device leaves the base station. This application has realized through setting up controllable switch between power and charging electrode cleaning device gets back to and controls charging electrode when the basic station and switch on cleaning device control charging electrode disconnection when leaving the basic station, avoids the safety risk that the charging machine electricity was brought by the short circuit of outside object.
Description
Technical Field
The application relates to the technical field of circuits, in particular to a charging circuit, a cleaning device and a cleaning system.
Background
Along with the intellectualization of the floor sweeping robot and the floor mopping robot, more and more products with the automatic back flushing function are provided, two exposed metal electrode plates are usually arranged on the charging seat, and when the floor sweeping robot or the floor mopping robot returns to the charging seat, the metal electrode plates on the body are connected with the metal electrode plates on the charging seat, so that the automatic back charging function is realized.
Because, at the automatic back charge in-process of machine of sweeping the floor, the back charge positional deviation under the different scenes is great, for guaranteeing reliable connection, the electrode slice on general charging seat need be naked hourglass, and the area is great, and the charging seat is connected the power, when the robot that sweeps the floor needs to charge, need return the charging seat, with charging electrode connection, and then accomplish and charge.
In order to determine whether the floor sweeping robot or the floor mopping robot is back-charged, the charging electrode on the charging base is always in a power-on state to detect the connection state. Although the internal power supply of the charging seat uses the isolated power supply to reduce the voltage, the electric shock of the human body can not occur; however, the exposed and charged charging electrode is easily short-circuited by external objects, for example, when a broom with a metal shell is used to clean the charging base, the risk of short circuit occurs, and internal devices are burnt.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the application is to provide a charging circuit, a cleaning device and a cleaning system, which realize that a charging electrode is conducted when the cleaning device returns to a base station, and the charging electrode is disconnected when the cleaning device leaves the base station, so that the safety risk caused by the short circuit of an external object of a charging machine is avoided.
A first aspect of an embodiment of the present application provides a charging circuit for a base station, including: a power source, a charging electrode connected to the power source for charging the cleaning device, the charging circuit further comprising: a controllable switch connected between the power supply and the charging electrode; wherein the controllable switch is turned on when the cleaning device returns to the base station and turned off when the cleaning device leaves the base station.
In one embodiment, the controllable switch is a magnetic switch, and the position of the magnetic switch corresponds to the position of the magnet on the cleaning device returning to the base station, so that when the cleaning device returns to the base station, the magnet on the cleaning device triggers the magnetic switch to be turned on.
In one embodiment, the controllable switch is a power switch tube; the charging circuit further includes: a first detection circuit for generating a first detection signal upon detecting that the cleaning apparatus is returned to a base station; and the main control circuit is respectively connected with the first detection circuit and the control end of the power switch tube and is used for converting the first detection signal into a driving signal, and the driving signal is used for driving the power switch tube to be closed.
In one embodiment, the first detection circuit comprises a hall sensor, the position of the hall sensor corresponds to the position of the magnet on the cleaning device returning to the base station, so that when the cleaning device returns to the base station, the magnet on the cleaning device triggers the hall sensor to generate the first detection signal; the main control circuit is used for converting a first detection signal of the Hall sensor into a high level signal, and the high level signal is used for driving the power switch tube to be closed.
In one embodiment, the method further comprises: the second detection circuit is connected between the main control circuit and the charging electrode and is used for acquiring a second detection signal of the charging electrode and the power supply in a short-circuit state; the input end of the main control circuit is connected with the second detection circuit, the output end of the main control circuit is connected with the power switch tube, the main control circuit is further used for converting the second detection signal into a low level signal, and the low level signal is used for driving the power switch tube to be disconnected.
In one embodiment, the power switch tube includes: the source electrode of the first MOS tube is connected with the positive electrode of the power supply, and the drain electrode of the first MOS tube is connected with the positive electrode of the charging electrode; the base level of the triode is connected with the main control circuit, the collector electrode of the triode is connected with the grid electrode of the first MOS tube, and the emitting electrode of the triode is grounded.
In one embodiment, the method further comprises: and one end of the pull-down unit is connected with the charging electrode, the other end of the pull-down unit is connected with the control end of the power switch tube, and the pull-down unit is used for pulling down the level of the control end of the power switch tube to drive the power switch tube to be disconnected when the charging electrode is in short circuit with the power supply.
In one embodiment, the method further comprises: and one end of the energy storage element is connected with the pull-down unit, the other end of the energy storage element is connected with the charging electrode, and the energy storage element is used for storing electric energy when the charging electrode is short-circuited with the power supply and supplying power to the pull-down unit within a period of time after the power switch tube is disconnected, so that the power switch tube is continuously disconnected within the period of time.
A second aspect of embodiments of the present application provides a cleaning apparatus, including: a motor for driving the cleaning device to move, a storage electrode and a magnet.
A third aspect of embodiments of the present application provides a cleaning system, including: a base station and a cleaning device according to the second aspect of the embodiments of the present application, wherein the base station comprises a charging circuit according to the first aspect of the embodiments of the present application and any embodiment thereof.
The application provides a charging circuit, cleaning device and clean system through set up controllable switch between power and charging electrode, has realized cleaning device controls charging electrode and switches on when getting back to the basic station cleaning device controls charging electrode disconnection when leaving the basic station, avoids the safety risk that the charging machine electricity was brought by the short circuit of outside object.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a cleaning system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a charging circuit according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a charging circuit according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a charging circuit according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a charging circuit according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a charging circuit according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a charging circuit according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a charging circuit according to an embodiment of the present application.
Reference numerals:
100-cleaning system, 1-base station, 2-cleaning device, 10-charging circuit, 101-power supply, 102-charging electrode, 21-motor, 22-storage electrode, 23-magnet, 103-controllable circuit, 104-first detection circuit, 105-main control circuit, 106-second detection circuit, 107-pull-down unit, 108-reed switch.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the present application, the terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the present embodiment provides a cleaning system 100, including: the cleaning device comprises a base station 1 and a cleaning device 2, wherein a charging circuit 10 is arranged in the base station 1, the charging circuit 10 comprises a power supply 101, and a charging electrode 102 which is connected with the power supply 101 and is used for charging the cleaning device 2. When the charging equipment needs to be charged, the charging electrode 102 of the base station 1 is connected, and the charging process can be performed.
In one embodiment, the cleaning device 2 comprises at least a motor 21 for driving the cleaning device 2 to move, a storage electrode 22 and a magnet 23. For example, the cleaning device 2 may be a cleaning robot, and the base station 1 may be a charging stand of the cleaning robot.
Please refer to fig. 2, which is a charging circuit 10 of the base station 1 according to an embodiment of the present application, further including: a controllable switch 103 connected between the power source 101 and the charging electrode 102; wherein the controllable switch 103 is switched on when the cleaning device 2 is returned to the base station 1 and switched off when the cleaning device 2 is removed from the base station 1. Taking the sweeping robot system as an example, the charging seat is provided with the charging circuit 10, since the controllable switch 103 is arranged between the electric fish and the charging electrode 102, when the sweeping robot needs to be charged, the robot returns to the charging seat, the storage electrode 22 on the sweeping robot is connected with the charging electrode 102 on the charging seat, the controllable switch 103 is closed and conducted, the power supply 101 is switched on, and the charging starts. When the sweeping robot leaves the charging seat, the controllable switch 103 is turned off, so that the charging electrode 102 is disconnected from the power supply 101, and even if the charging electrode 102 is exposed, the charging electrode 102 is not in a power-on state, thereby avoiding the safety risk caused by the short circuit of an external object.
In one embodiment, the controllable switch 103 is a magnetic switch, and the position of the magnetic switch corresponds to the position of the magnet 23 on the cleaning device 2 returning to the base station 1, so that when the cleaning device 2 returns to the base station 1, the magnet 23 on the cleaning device 2 triggers the magnetic switch to be turned on. For example, the magnetic switch may be a reed switch, the reed switch is disposed between the power supply 101 and the charging electrode 102, the sweeping robot is provided with a magnet 23, when the sweeping robot returns to the charging stand, the magnet 23 is close to the reed switch, the reed switch is closed and conducted, the power supply 101 is conducted with the charging electrode 102, and the power storage electrode 22 on the sweeping robot is connected with the charging electrode 102 on the charging stand to start charging.
In an embodiment, the position of the magnet 23 on the robot cleaner can be set according to the position of the reed switch on the charging seat, and assuming that the charging electrode 102 includes two electrode plates, the reed switch is disposed at the middle position between the electrode plates of the charging seat, in order to allow the reed switch to sense the magnet 23, the magnet 23 can be disposed at the middle position between the two electrode plates of the power storage electrode 22 on the robot cleaner, so that when the power storage electrode 22 of the robot cleaner is connected to the charging electrode 102 of the charging seat, the magnet 23 is just in the sensing range of the reed switch, so as to ensure the sensitivity of the reed switch.
In an embodiment, as shown in fig. 3, the controllable switch 103 may also be a power switch tube; in this case, the charging circuit 10 further includes: a first detection circuit 104 and a main control circuit 105, wherein the first detection circuit 104 is configured to generate a first detection signal when detecting that the cleaning device 2 returns to the base station 1; the main control circuit 105 is respectively connected to the first detection circuit 104 and the control end of the power switch tube, and is configured to convert the first detection signal into a driving signal, where the driving signal is used to drive the power switch tube to be closed.
That is to say, when the robot of sweeping the floor returns to the charging seat, can trigger first detection circuitry 104 and generate first detection signal, first detection signal can be the signal of telecommunication, when first detection signal was gathered in real time to main control circuit 105, convert first detection signal into drive signal, main control circuit 105 can have the amplifier to realize, for example can convert the signal of telecommunication of first detection circuitry 104 into drive voltage after enlargiing for the drive power switch tube is closed, and power switch tube is closed back for power 101 and charging electrode 102 switch on, begin the charging process. When the sweeping robot leaves the charging seat, the first detection signal disappears, the driving signal disappears, the power supply 101 is disconnected with the charging electrode 102, and then the safety risk caused by the short circuit of the charging electrode 102 by an external object is avoided.
In one embodiment, the first detection circuit 104 includes a hall sensor, the position of which corresponds to the position of the magnet 23 on the cleaning device 2 returning to the base station 1, so that when the cleaning device 2 returns to the base station 1, the magnet 23 on the cleaning device 2 triggers the hall sensor to generate a first detection signal; at this time, the main control circuit 105 is configured to convert the first detection signal of the hall sensor into a high level signal, where the high level signal is used to drive the power switching tube to be turned on.
The arrangement of the relative position between the hall sensor and the magnet 23 can refer to the arrangement of the position between the reed pipe and the magnet 23, and the principle is that when the power storage electrode 22 of the sweeping robot is connected with the charging electrode 102 of the charging stand, the magnet 23 is ensured to be within the sensing range of the hall sensor, so that the hall sensor can sensitively generate a sensing signal (i.e., a first detection signal). The main control circuit 105 collects sensing signals generated by the hall sensor in real time, converts the sensing signals into high level signals, and the high level signals can act on the control end of the power switch tube to drive the power switch tube to be closed, so that the power supply 101 and the charging electrode 102 are conducted to start a charging process. When the sweeping robot leaves the charging seat, the induction signal of the hall sensor disappears, the high level signal disappears, the power supply 101 is disconnected with the charging electrode 102, and the safety risk caused by the short circuit of the charging electrode 102 by an external object is avoided.
In an embodiment, the first detection circuit 104 may also be an infrared receiver, that is, an infrared receiver is disposed on the base station 1, an infrared transmitter is disposed on the cleaning device 2, and the position of the infrared receiver corresponds to the position of the infrared transmitter on the cleaning device 2 returning to the base station 1, so that the infrared receiver is triggered by a signal emitted by the infrared transmitter on the cleaning device 2 when the cleaning device 2 returns to the base station 1. The relative position between the infrared receiver and the infrared transmitter can refer to the above-mentioned position setting mode between the reed switch and the magnet 23, and the principle is that when the power storage electrode 22 of the sweeping robot is connected with the charging electrode 102 of the charging stand, the infrared signal sent by the infrared transmitter is ensured to be within the receiving range of the infrared receiver.
In an embodiment, as shown in fig. 3, the method further includes: the second detection circuit 106 is connected between the main control circuit 105 and the charging electrode 102, and is configured to acquire a second detection signal of the charging electrode 102 and the power supply 101 in a short-circuit state; the input end of the main control circuit 105 is connected to the second detection circuit 106, the output end of the main control circuit 105 is connected to the power switch tube, the main control circuit 105 is further configured to convert the second detection signal into a low level signal, and the low level signal is used to drive the power switch tube to be disconnected. That is to say, the second detection circuit 106 is configured to detect a real-time current (i.e. a second detection signal) on the charging electrode 102, and once the current is too large, it is likely that the charging electrode 102 is short-circuited, and this current change may be transmitted to the main control circuit 105, and the main control circuit 105 converts the current into a low-level signal through a conversion circuit, and the low-level signal acts on the control terminal of the power switch tube to drive the power switch tube to be turned off, so that the charging electrode 102 is turned off from the power supply 101, and a safety risk caused by a short-circuit of the charging electrode 102 by an external object is avoided.
In an embodiment, as shown in fig. 4, the power switch tube may include: a first MOS transistor Q1 and a transistor Q2, wherein a source S of the first MOS transistor Q1 is connected to the positive electrode of the power supply 101, and a drain D of the first MOS transistor Q1 is connected to the positive electrode of the charging electrode 102; the base stage B of the transistor Q2 is connected to the master control circuit 105, the collector C of the transistor Q2 is connected to the gate G of the first MOS transistor Q1, and the emitter E of the transistor Q2 is grounded.
In practical scenarios, assuming that the voltage of the power supply 101 is 20V, the main control circuit 105 may be implemented by an integrated circuit chip, the first MOS transistor Q1 may be a P-type MOS transistor, the positive electrode of the power supply 101 is connected to the electrode plate of the charging electrode 102 through the first MOS transistor Q1, and the first MOS transistor Q1 may control the switch of the charging circuit. The voltage of the gate G of the first MOS transistor Q1 is controlled by a transistor Q2, and the base B of the transistor Q2 is controlled by the main control circuit 105 whether to turn on or hang up the charging loop through a chip port CHARGE _ EN connected to the main control circuit 105. A protection resistor R4, which may be 2K Ω resistor R4, may be disposed between the port CHARGE _ EN of the main control circuit 105 and the base B of the transistor Q2. A resistor R1(100K Ω), a resistor R2(47K Ω) and a resistor R3(150K Ω) are also arranged between the first MOS transistor Q1 and the triode Q2.
The working process of the circuit is as follows: when a port CHARGE _ EN of the main control circuit 105 outputs a high-level signal, the voltage of a base stage B of the triode Q2 relative to an emitter E is greater than 0.7V, a collector C of the triode Q2 is conducted to the emitter E, and at the moment, current flows through the resistor R1 and the resistor R3, so that the resistor R1 has voltage, namely, a voltage difference is formed between a source S and a gate G of the first MOS transistor Q1, the source S and the drain D of the first MOS transistor Q1 are conducted, and the charging electrode 102 is electrified; when the master short-circuited port CHARGE _ EN outputs a low level signal, the charging electrode 102 is powered off.
In an embodiment, the charging circuit 10 may further include: and the bidirectional voltage regulator ESD1 is used for stabilizing the voltage of the charging circuit 10.
In one embodiment, as shown in fig. 4, the second detection circuit 106 may sample a resistor R6, one end of which is connected to the negative electrode, and the other end of which is connected to the negative electrode of the power supply 101; the filter circuit is connected with the sampling circuit in parallel and then connected with the main control circuit 105; and the bidirectional voltage regulator tube ESD2 is connected with the filter circuit in parallel.
As shown in fig. 4, the negative electrode of the charging electrode 102 is connected to the negative electrode of the power supply 101 through a current sampling resistor R6, and during the charging process, the voltage value converted by the charging current passes through an RC filter circuit formed by a resistor R5 and a capacitor C2 and then is connected to an ADC (Analog-to-digital converter) sampling port of the main control circuit 105, so as to realize the collection and management of the charging current. Usually, when the charging current is too large, the voltage division of the sampling resistor R6 is increased, the sampling voltage input to the ADC sampling port of the main control circuit 105 is increased, and when the sampling voltage exceeds a set threshold, the main control circuit 105 turns off the first MOS transistor Q1 through the port CHARGE _ EN, thereby preventing the circuit from being damaged by overcurrent.
In an embodiment, the charging circuit 10 may further include: and a pull-down unit 107, one end of which is connected to the charging electrode 102 and the other end of which is connected to the control end of the power switch tube, and configured to pull down the level of the control end of the power switch tube to drive the power switch tube to be disconnected when the charging electrode 102 is short-circuited with the power supply 101.
As shown in fig. 5, the pull-down unit 107 may be implemented by a second MOS transistor Q3, and a second MOS transistor Q3 may be added on the basis of fig. 4, where the second MOS transistor Q3 may be an N-type MOS transistor, the gate G of the second MOS transistor Q3 is connected to the negative electrode of the charging electrode 102, the drain D of the second MOS transistor Q3 is connected to the base B of the transistor Q2, and the source S of the second MOS transistor Q3 is grounded. When the sweeping robot is normally charged, the voltage formed by the current of the charging electrode 102 on the sampling resistor R6 is lower than the turn-on voltage Vgsth of the second MOS transistor Q3, and at this time, the second MOS transistor Q3 is in a turn-off state and does not play any role. When the electrode plate of the charging electrode 102 is short-circuited, the sampling voltage at the sampling resistor R6 sharply rises, and when the sampling voltage exceeds the turn-on voltage Vgsth of the second MOS transistor Q3, the second MOS transistor Q3 is turned on. At this time, even if the port CHARGE _ EN of the main control circuit 105 outputs a high level signal, due to the conduction of the second MOS transistor Q3, the potential of the base B of the transistor Q2 is pulled low, the transistor Q2 is turned off, and the first MOS transistor is turned off accordingly, so that the charging electrode 102 is disconnected from the power supply 101, no current is output on the electrode plate, the protection mode is only processed by hardware of two MOS transistors and one transistor Q2, and the reaction speed of circuit protection is at nanosecond level, so that the function of cutting off the power supply 101 can be achieved in a very short time.
In one embodiment, the charging circuit 10 further includes: and one end of the energy storage element is connected with the pull-down unit 107, and the other end of the energy storage element is connected with the charging electrode 102, and is used for storing electric energy when the charging electrode 102 is short-circuited with the power supply 101, and supplying power to the pull-down unit 107 within a period of time after the power switch tube is disconnected, so that the power switch tube is continuously disconnected within the period of time.
As shown in fig. 6, the energy storage element may be implemented by a capacitor C1, and specifically, a diode D1 may be added on the basis of fig. 5, the diode D1 is disposed between the negative electrode of the electrode plate and the second MOS transistor Q3, the direction is from the negative electrode plate to the second MOS transistor Q3, and a resistor R10 and a capacitor C1 are connected in parallel between the gate G and the source S of the second MOS transistor Q3. When the charging electrode 102 is short-circuited, the voltage across the sampling resistor R6 rises, the capacitor C1 is charged through the diode D1, and once the voltage across the capacitor C1 exceeds the turn-on voltage Vgsth of the second MOS transistor Q3, the second MOS transistor Q3 is turned on, the triode Q2 is turned off, the first MOS transistor Q1 is turned off, and the charging loop is turned off. After the charging circuit is powered off, due to the energy storage effect of the capacitor C1 and the one-way conduction effect of the diode D1, the off state can be maintained for a period of time, so that the short-circuited circuit can be quickly cut off, the continuous oscillation of the on and off can be avoided, the situation that the charging electrode 102 is short-circuited again if a short-circuited object is not removed is avoided, and the charging circuit 10 is prevented from continuously repeating the cycle of short-circuit-protection again.
The amount of the period of time depends on the capacity of the capacitor C1 and the resistance of the resistor R10. In practical situations, different protection delays can be set by adjusting the capacity of the capacitor C1 and the resistance value of the resistor R10.
In an embodiment, the main control circuit 105 may include an alarm sub-circuit, and a connection node between the anode K of the diode D1 and the gate of the second MOS transistor may be connected to the alarm sub-circuit, and the alarm sub-circuit is configured to trigger a rising edge.
As shown in fig. 7, based on the charging circuit 10 shown in fig. 6, a sampling point between the diode D1 and the second MOS transistor Q3 may be connected to an external interrupt pin CHARGE _ I _ SHORT of the main control circuit 105, and an alarm sub-circuit is connected through the external interrupt pin, where the external interrupt is set to be triggered by a rising edge, and after the charging electrode 102 is SHORT-circuited, a voltage at the sampling point rises to cause the main control circuit 105 to interrupt, so as to issue a fault alarm prompt, so as to prompt a user to take measures to remove a SHORT-circuited foreign object.
In one embodiment, the controllable switch 103 may include both a power switch and a magnetic switch, as shown in fig. 8, and assuming that the magnetic switch is a reed switch 108, the reed switch 108 may be added to the charging circuit 10 shown in fig. 7, i.e. a reed switch 108 is connected in series between the first MOS transistor Q1 and the positive electrode pad. The reed switch 108 is disposed inside the case between the two charging electrodes 102 of the charging stand. A permanent magnet 23 is arranged on the inner side of the shell at the opposite position between the two electrode plates of the power storage electrode 22 of the sweeping robot. When the floor sweeping robot or the floor mopping robot returns to the charging seat for charging, the magnet 23 on the robot body enters the induction range of the reed switch 108 on the charging seat, at the moment, the reed switch 108 is conducted, the electrode plate is electrified, and after the robot leaves the charging seat, the charging circuit 10 is disconnected. Therefore, the risk of short circuit caused by long-term electrode electrification can be effectively avoided, and the function of detecting the connection state during recharging is not influenced.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A charging circuit of a base station, comprising: a power supply, a charging electrode connected to the power supply for charging the cleaning device, wherein the charging circuit further comprises:
a controllable switch connected between the power supply and the charging electrode;
wherein the controllable switch is turned on when the cleaning device returns to the base station and turned off when the cleaning device leaves the base station.
2. The charging circuit of claim 1, wherein the controllable switch is a magnetic switch having a position corresponding to a position of a magnet on the cleaning device back to the base station such that the magnet on the cleaning device triggers the magnetic switch to conduct when the cleaning device returns to the base station.
3. The charging circuit of claim 1, wherein the controllable switch is a power switch tube; the charging circuit further includes:
a first detection circuit for generating a first detection signal upon detecting that the cleaning apparatus is returned to a base station;
and the main control circuit is respectively connected with the first detection circuit and the control end of the power switch tube and is used for converting the first detection signal into a driving signal, and the driving signal is used for driving the power switch tube to be closed.
4. The charging circuit of claim 3, wherein the first detection circuit comprises a Hall sensor having a position corresponding to a position of a magnet on the cleaning device back to a base station such that when the cleaning device returns to a base station, the magnet on the cleaning device triggers the Hall sensor to generate a first detection signal;
the main control circuit is used for converting a first detection signal of the Hall sensor into a high level signal, and the high level signal is used for driving the power switch tube to be closed.
5. The charging circuit of any of claims 3-4, further comprising:
the second detection circuit is connected between the main control circuit and the charging electrode and is used for acquiring a second detection signal of the charging electrode and the power supply in a short-circuit state;
the input end of the main control circuit is connected with the second detection circuit, the output end of the main control circuit is connected with the power switch tube, the main control circuit is further used for converting the second detection signal into a low level signal, and the low level signal is used for driving the power switch tube to be disconnected.
6. The charging circuit of claim 3, wherein the power switch tube comprises:
the source electrode of the first MOS tube is connected with the positive electrode of the power supply, and the drain electrode of the first MOS tube is connected with the positive electrode of the charging electrode;
the base level of the triode is connected with the main control circuit, the collector electrode of the triode is connected with the grid electrode of the first MOS tube, and the emitting electrode of the triode is grounded.
7. The charging circuit of claim 3, further comprising:
and one end of the pull-down unit is connected with the charging electrode, the other end of the pull-down unit is connected with the control end of the power switch tube, and the pull-down unit is used for pulling down the level of the control end of the power switch tube to drive the power switch tube to be disconnected when the charging electrode is in short circuit with the power supply.
8. The charging circuit of claim 7, further comprising:
and one end of the energy storage element is connected with the pull-down unit, the other end of the energy storage element is connected with the charging electrode, and the energy storage element is used for storing electric energy when the charging electrode is short-circuited with the power supply and supplying power to the pull-down unit within a period of time after the power switch tube is disconnected, so that the power switch tube is continuously disconnected within the period of time.
9. A cleaning apparatus, comprising:
a motor for driving the cleaning device to move, a storage electrode and a magnet.
10. A cleaning system, comprising: base station and cleaning device as claimed in claim 9, wherein the base station comprises a charging circuit as claimed in any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122119956.1U CN216056395U (en) | 2021-09-03 | 2021-09-03 | Charging circuit, cleaning device and cleaning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122119956.1U CN216056395U (en) | 2021-09-03 | 2021-09-03 | Charging circuit, cleaning device and cleaning system |
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| CN216056395U true CN216056395U (en) | 2022-03-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115437381A (en) * | 2022-09-19 | 2022-12-06 | 北京萌特博智能机器人科技有限公司 | Robot pile return guiding method, device and equipment in charging pile power-off mode |
| WO2024036976A1 (en) * | 2022-08-15 | 2024-02-22 | 兆略有限公司 | Underwater cleaning robot with rechargeable battery |
-
2021
- 2021-09-03 CN CN202122119956.1U patent/CN216056395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036976A1 (en) * | 2022-08-15 | 2024-02-22 | 兆略有限公司 | Underwater cleaning robot with rechargeable battery |
| CN115437381A (en) * | 2022-09-19 | 2022-12-06 | 北京萌特博智能机器人科技有限公司 | Robot pile return guiding method, device and equipment in charging pile power-off mode |
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