Charging seat of cleaning device

Abstract

The utility model discloses a charging seat of a cleaning device. The charging seat comprises a first charging interface which is in butt joint with a charging port of a battery pack of the cleaning device, and a second charging interface which is in butt joint with a charging port of a standby battery pack, the cleaning device charging circuit is used for charging a battery pack of the cleaning device when the battery pack of the cleaning device is in butt joint with the first charging interface; the standby battery pack charging circuit is used for charging the standby battery pack when the charging port of the standby battery pack is in butt joint with the second charging interface; the cleaning device charging detection unit is electrically connected with the first charging interface and used for outputting a cleaning device charging detection signal to turn off a standby battery pack charging circuit when a charging port of a battery pack of the cleaning device is in butt joint with the first charging interface. According to the utility model, the two charging packs can be charged, and the standby battery pack is disconnected when the battery packs of the cleaning device are connected, so that the battery packs of the cleaning device are charged preferentially.

Description

Technical Field

[0001] The utility model relates to the technical field of battery charging, in particular to a charging seat for a cleaning device. Background Art

[0002] Nowadays, household cleaning appliances have become indispensable equipment in ordinary people's homes. The power consumption of household cleaning appliances has also become an inevitable problem with the widespread application. For example, during the use of a vacuum cleaner, the power consumption of the vacuum cleaner is the first problem that needs to be solved. Usually, the vacuum cleaner has a whole battery pack and a backup battery pack to avoid the battery power failure during use, which affects the use of the device. In the prior art, the charging stand of the vacuum cleaner can charge the whole battery pack and the backup battery pack separately. In this way, the vacuum cleaner can use two battery packs to power it separately, thereby avoiding sudden power failure of the vacuum cleaner.

[0003] When charging the whole battery pack and spare battery pack of a vacuum cleaner, there are usually two charging methods: 1. Give priority to charging the battery with lower power; 2. Give priority to charging the newly plugged in battery. These two methods cannot meet the demand of charging the whole battery pack first, and the whole battery pack may take a long time to be fully charged. Utility Model Content

[0004] The utility model aims to provide a charging stand for a cleaning device, so as to solve the problem in the prior art that the two battery packs of the cleaning device cannot be charged preferentially when charging the battery pack of the whole device.

[0005] To achieve one of the above-mentioned purposes of the utility model, an embodiment of the utility model provides a charging stand for a cleaning device, comprising a first charging interface docked with a charging port of a battery pack of the cleaning device, and a second charging interface docked with a charging port of a backup battery pack, the charging stand further comprising: a cleaning device charging circuit, used to charge the battery pack of the cleaning device when the charging port of the battery pack of the cleaning device is docked with the first charging interface;

[0006] a backup battery pack charging circuit, used to charge the backup battery pack when the charging port of the backup battery pack is docked with the second charging interface;

[0007] A cleaning device charging detection unit is electrically connected to the first charging interface, and is used to output a cleaning device charging detection signal when the charging port of the battery pack of the cleaning device is docked with the first charging interface to control the shutdown of the backup battery pack charging circuit.

[0008] As a further improvement of the utility model, the charging stand further comprises: the first charging interface has a first positive connection end and a first negative connection end, the first positive connection end is used to connect to the positive charging port of the battery pack of the cleaning device, and the first negative connection end is used to connect to the negative charging port of the battery pack of the cleaning device;

[0009] The cleaning device charging detection unit includes a first voltage detection circuit and / or a first current detection circuit;

[0010] The first voltage detection circuit includes a first resistor, a second resistor and a third resistor, the first resistor and the second resistor are connected in series between the first positive electrode connection terminal and the ground terminal, one end of the third resistor is connected between the first resistor and the second resistor, and the other end is connected to the output end of the first voltage detection circuit;

[0011] The first current detection circuit includes a fourth resistor and a fifth resistor, the fourth resistor is connected between the first negative electrode connection terminal and the ground terminal, one end of the fifth resistor is connected to the first negative electrode connection terminal, and the other end is connected to the output end of the first current detection circuit.

[0012] As a further improvement of the present utility model, the charging base further includes: the second charging interface has a second positive connection end, and the second positive connection end is used to connect to the positive charging port of the backup battery pack;

[0013] The charging station also includes:

[0014] The backup battery pack charging circuit switch component is connected in series between the power supply end of the backup battery pack charging circuit and the second positive connection end to control the shutdown of the backup battery pack charging circuit.

[0015] As a further improvement of the utility model, the charging stand further comprises: the backup battery pack charging circuit switch assembly comprises a first field effect transistor;

[0016] The source of the first field effect transistor is connected to the power supply end of the backup battery pack charging circuit, the drain of the first field effect transistor is connected to the second positive connection end, and the gate of the first field effect transistor is connected to the first control end of the backup battery pack charging circuit switch component.

[0017] As a further improvement of the utility model, the charging stand further comprises: the backup battery pack charging circuit switch assembly further comprises a first transistor;

[0018] The collector of the first transistor is connected to the gate of the first field effect transistor, the emitter of the first transistor is connected to the ground terminal, and the base of the first transistor is connected to the first control terminal of the backup battery pack charging circuit switch component.

[0019] As a further improvement of the utility model, the charging stand further comprises: the backup battery pack charging circuit switch assembly further comprises a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor;

[0020] The sixth resistor is connected in parallel to the source and gate of the first field effect transistor, and the seventh resistor is connected in series between the gate of the first field effect transistor and the collector of the first transistor;

[0021] The eighth resistor is connected in series between the first control terminal of the backup battery pack charging circuit switch component and the base of the first transistor, and the ninth resistor is connected in parallel to the emitter of the first transistor and the ground terminal.

[0022] As a further improvement of the utility model, the charging stand further comprises: the backup battery pack charging circuit switch assembly further comprises a second field effect transistor;

[0023] The drain of the second field effect transistor is connected to the drain of the first field effect transistor, the source of the second field effect transistor is connected to the second positive electrode connection end, and the gate of the second field effect transistor is connected to the second control end of the backup battery pack charging circuit switch component.

[0024] As a further improvement of the utility model, the charging stand further comprises: the backup battery pack charging circuit switch assembly further comprises a second triode;

[0025] The collector of the second transistor is connected to the gate of the second field effect transistor, the emitter of the second transistor is connected to the ground terminal, and the base of the second transistor is connected to the second control terminal of the backup battery pack charging circuit switch component.

[0026] As a further improvement of the utility model, the charging stand further comprises: the backup battery pack charging circuit switch assembly further comprises a tenth resistor, an eleventh resistor, a twelfth resistor and a thirteenth resistor;

[0027] The tenth resistor is connected in parallel to the source and gate of the second field effect transistor, and the eleventh resistor is connected in series between the gate of the second field effect transistor and the collector of the second transistor;

[0028] The twelfth resistor is connected in series between the second control terminal of the backup battery pack charging circuit switch assembly and the base of the second transistor, and the thirteenth resistor is connected in parallel to the emitter of the second transistor and the ground terminal.

[0029] As a further improvement of the utility model, the charging seat also includes: a TVS tube, the first end of the TVS tube is respectively connected to the power supply end of the cleaning device charging circuit and the power supply end of the backup battery pack charging circuit, and the second end of the TVS tube is connected to the ground end.

[0030] Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts dual-circuit charging, and the battery pack of the cleaning device, i.e., the whole machine pack, can be charged by the cleaning device charging circuit, and the spare battery pack can be charged by the spare battery pack charging circuit, and the charging detection unit of the cleaning device can realize disconnecting the charging of the spare battery pack when the battery pack of the cleaning device is connected, thereby giving priority to charging the battery pack of the cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the system structure of a charging base for a cleaning device in one embodiment of the utility model.

[0032] Figure 2 It is a circuit structure diagram of a first voltage detection circuit in one implementation mode of the utility model.

[0033] Figure 3 It is a circuit structure diagram of a first current detection circuit in one embodiment of the utility model.

[0034] Figure 4 It is a schematic diagram of a circuit structure in which a first voltage detection circuit and a first current detection circuit are used together in one embodiment of the utility model.

[0035] Figure 5 It is a circuit structure diagram of a backup battery pack charging circuit in one embodiment of the utility model.

[0036] Figure 6 This is a diagram of the overall circuit structure of the charging base in one embodiment of the utility model. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0038] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In addition, the terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] like Figure 1 As shown, in one embodiment of the utility model, a charging stand for a cleaning device is provided, and the charging stand for the cleaning device can be applied to the field of battery charging of household cleaning electrical equipment, such as vacuum cleaners, sweepers, etc.; of course, it is not limited to the field of household electrical appliances. The utility model adopts a dual charging circuit, which can realize charging of two battery packs, wherein the two battery packs can be charged simultaneously or sequentially.

[0040] The charging base of the cleaning device includes a first charging interface docked with the charging port of the battery pack 41 of the cleaning device, and a second charging interface docked with the charging port of the backup battery pack 42.

[0041] Among them, the first charging interface and the second charging interface can be understood as the power output port of the power terminal 3. The power terminal 3 can be connected to an AC power source or a DC power source, and this application does not limit this.

[0042] When the first charging interface is connected to the battery pack 41 of the cleaning device, the charging pack of the entire device can be charged; when the second charging interface is connected to the charging port of the backup battery pack 42, the backup battery pack 42 can be charged.

[0043] Specifically, the charging station includes:

[0044] A cleaning device charging circuit 11, used to charge the battery pack 41 of the cleaning device when the charging port of the battery pack 41 of the cleaning device is docked with the first charging interface;

[0045] A backup battery pack charging circuit 12, used to charge the backup battery pack 42 when the charging port of the backup battery pack 42 is docked with the second charging interface;

[0046] The cleaning device charging detection unit 13 is electrically connected to the first charging interface, and is used to output a cleaning device charging detection signal to control the shutdown of the backup battery pack charging circuit 12 when the charging port of the battery pack 41 of the cleaning device is docked with the first charging interface.

[0047] In this way, when the two charging packs are able to be charged based on the above-mentioned two charging circuits, if the battery pack 41 of the cleaning device is detected, the charging of the backup battery pack 42 is disconnected, thereby realizing priority charging of the battery pack 41 of the cleaning device, that is, the charging pack of the whole machine; the user can directly use the whole machine every time without replacing the battery pack, and the backup battery pack 42 on the charging base will only be used when the battery of the whole machine is used up.

[0048] The charging detection signal represents the installation status of the battery pack 41 of the cleaning device. It is further understood that when the charging detection signal is at a high level, it represents that the battery pack 41 of the cleaning device has been docked to the charging port, which means that it is ready for charging; when the charging detection signal is at a low level, it represents that the battery pack 41 of the cleaning device has not been docked to the charging port, which means that the battery pack 41 of the cleaning device is not ready for charging.

[0049] In one embodiment, when the charging detection signal is at a low level, the power supply can be controlled to charge the backup battery pack 42 through the backup battery pack charging circuit.

[0050] In one embodiment, when the charging detection signal is at a high level, the backup battery pack charging circuit is turned off and the cleaning device charging circuit 11 is turned on, and the control power supply charges the battery pack 41 of the cleaning device through the cleaning device charging circuit 11 .

[0051] The charging detection signal may be represented as voltage information or current information.

[0052] In one embodiment of the utility model, the first charging interface has a first positive connection terminal and a first negative connection terminal, the first positive connection terminal is used to connect to the positive charging port of the battery pack 41 of the cleaning device, and the first negative connection terminal is used to connect to the negative charging port of the battery pack 41 of the cleaning device.

[0053] In one embodiment, the first negative connection terminal may be a ground terminal.

[0054] In one embodiment, if Figure 2 As shown, the cleaning device charging detection unit 13 includes a first voltage detection circuit 131. The first voltage detection circuit 131 is used to detect voltage information to obtain the installation status of the battery pack 41 of the cleaning device.

[0055] The first voltage detection circuit 131 includes a first resistor R1, a second resistor R2 and a third resistor R3. The first resistor R1 and the second resistor R2 are connected in series between the first positive connection terminal and the ground terminal. One end of the third resistor R3 is connected between the first resistor R1 and the second resistor R2, and the other end is connected to the output end of the first voltage detection circuit 131.

[0056] In this way, the first voltage detection circuit 131 can quickly detect the voltage information of the battery pack 41 of the cleaning device when the battery pack 41 of the cleaning device is connected to the charging port, so that the battery pack 41 of the cleaning device is charged with the highest priority; and the first resistor R1 and the second resistor R2 form a voltage divider resistor to collect the voltage values ​​of the first battery 41 and the second battery 42, and the third resistor R3 forms a current limiting resistor to protect the safety of the detection circuit to prevent overvoltage.

[0057] Furthermore, a first capacitor C1 is connected between the output terminal and the ground terminal of the first voltage detection circuit 131; thus, a filtering effect can be achieved when collecting voltage information, thereby realizing accurate sampling.

[0058] In one embodiment, if Figure 3 As shown, the cleaning device charging detection unit 13 includes a first current detection circuit 132. The first current detection circuit 132 is used to detect current information to obtain the installation status of the battery pack 41 of the cleaning device.

[0059] The first current detection circuit 132 includes a fourth resistor R4 and a fifth resistor R5, the fourth resistor R4 is connected between the first negative electrode connection terminal and the ground terminal, one end of the fifth resistor R5 is connected to the first negative electrode connection terminal, and the other end is connected to the output end of the first current detection circuit 132.

[0060] The first current detection circuit 132 quickly detects the current information of the battery pack 41 of the cleaning device when the battery pack 41 of the cleaning device is connected to the charging port, thereby charging the battery pack 41 of the cleaning device as the top priority; the fourth resistor R4 forms a grounding safety resistor for the battery, and the fifth resistor R5 is a current limiting resistor, which can prevent overcurrent.

[0061] Furthermore, a third capacitor C3 is connected between the output terminal of the first current detection circuit 132 and the ground terminal; thus, a filtering effect can be achieved when collecting current information, thereby realizing accurate sampling.

[0062] In a preferred embodiment, Figure 4 As shown, the cleaning device charging detection unit 13 includes a first voltage detection circuit 131 and a first current detection circuit 132. The circuit connection relationship between the first voltage detection circuit 131 and the first current detection circuit 132 is the same as the above embodiment, and will not be repeated here.

[0063] In one embodiment of the utility model, the second charging interface has a second positive connection end, and the second positive connection end is used to connect to the positive charging port of the backup battery pack 42; when the second charging interface is connected to the positive charging port of the backup battery pack 42, the backup battery pack 42 can be charged based on the power supply.

[0064] Specifically, the charging base also includes:

[0065] The backup battery pack charging circuit switch component is connected in series between the power supply end of the backup battery pack charging circuit and the second positive connection end to control the shutdown of the backup battery pack charging circuit.

[0066] In this way, the on-off control of the backup battery pack charging circuit can be achieved through the switch component, so that the charging of the backup battery pack 42 can be quickly disconnected when the battery pack 41 of the cleaning device is charging, so that the power supply end gives priority to charging the battery pack 41 of the cleaning device, solving the problem of manual switching.

[0067] The switch component has two states, including a first state and a second state. In the first state, the backup battery pack charging circuit is turned on; in the second state, the backup battery pack charging circuit is turned off.

[0068] Furthermore, the cleaning device charging detection unit 13 outputs a charging detection signal, and the charging detection signal is used to switch the state of the switch component. Specifically, when the charging detection signal is a high level signal, the switch component is controlled to switch to the second state.

[0069] In one embodiment of the present invention, Figure 5 As shown, the backup battery pack charging circuit switch component includes a first field effect transistor M1; the source of the first field effect transistor M1 is connected to the power supply end of the backup battery pack charging circuit, the drain of the first field effect transistor M1 is connected to the second positive connection end, and the gate of the first field effect transistor M1 is connected to the first control end of the backup battery pack charging circuit switch component.

[0070] Based on the control of the first control terminal on the first field effect transistor M1, the first field effect transistor M1 can be switched between an on state and an off state, thereby controlling the on and off of the backup battery pack charging circuit.

[0071] The first control end is configured to receive a charging detection signal, ie, a first signal, indicating that the battery pack 41 of the cleaning device has been installed; the first signal indicates that the first field effect transistor M1 is turned off.

[0072] The first control end is further configured to receive a second signal indicating that the power end is charging the backup battery pack 42; the second signal indicates that the first field effect transistor M1 is turned on.

[0073] In one embodiment, when the charging detection signal is at a high level, the cleaning device charging circuit 11 is also turned on.

[0074] Furthermore, the backup battery pack charging circuit switch assembly further includes a first transistor Q1;

[0075] The collector of the first transistor Q1 is connected to the gate of the first field effect transistor M1, the emitter of the first transistor Q1 is connected to the ground terminal, and the base of the first transistor Q1 is connected to the first control terminal of the backup battery pack charging circuit switch component.

[0076] When the base of the first transistor Q1 receives the first signal and turns off the first transistor Q1, the first field effect transistor M1 is indirectly turned off; on the contrary, when the first transistor Q1 is turned on, the control signal can be amplified to drive the first field effect transistor M1 to turn on. In this way, the effect of small signal control of opening and closing can be achieved, and the first field effect transistor M1 has a faster response time, low noise, and high battery charging efficiency.

[0077] Furthermore, the backup battery pack charging circuit switch assembly further includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8 and a ninth resistor R9;

[0078] The sixth resistor R6 is connected in parallel to the source and gate of the first field effect transistor M1, and the seventh resistor R7 is connected in series between the gate of the first field effect transistor M1 and the collector of the first transistor Q1;

[0079] The eighth resistor R8 is connected in series between the first control terminal of the backup battery pack charging circuit switch component and the base of the first transistor Q1, and the ninth resistor R9 is connected in parallel to the emitter of the first transistor Q1 and the ground terminal.

[0080] In one embodiment of the utility model, the backup battery pack charging circuit switch assembly further includes a second field effect transistor M2;

[0081] The drain of the second field effect transistor M2 is connected to the drain of the first field effect transistor M1, the source of the second field effect transistor M2 is connected to the second positive electrode connection end, and the gate of the second field effect transistor M2 is connected to the second control end of the backup battery pack charging circuit switch component.

[0082] The above circuit can prevent the current of the backup battery pack 42 from flowing back to the power supply or the battery pack 41 of the cleaning device by setting the first field effect transistor M1 and the second field effect transistor M2 in series, and can also prevent the current of the battery pack 41 of the cleaning device from flowing back to the backup battery pack 42, thereby ensuring the safety of battery pack charging.

[0083] Furthermore, the backup battery pack charging circuit switch assembly further includes a second transistor Q2;

[0084] The collector of the second transistor Q2 is connected to the gate of the second field effect transistor M2, the emitter of the second transistor Q2 is connected to the ground terminal, and the base of the second transistor Q2 is connected to the second control terminal of the backup battery pack charging circuit switch component.

[0085] In this way, when the first field effect transistor M1 and the second field effect transistor M2 are arranged in series, the first field effect transistor M1 and the second field effect transistor M2 can be controlled respectively by the first transistor Q1 and the second transistor Q2.

[0086] Similarly, when the base of the second transistor Q2 receives the first signal and turns off the second transistor Q2, the first field effect transistor M1 is indirectly turned off, forming the same control effect as the first transistor Q1 and triggering the action synchronously based on receiving the same control signal, so that the conduction and shutdown of the first field effect transistor M1 and the second field effect transistor M2 are synchronously performed.

[0087] Further, the backup battery pack charging circuit switch assembly further includes a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12 and a thirteenth resistor R13;

[0088] The tenth resistor R10 is connected in parallel to the source and gate of the second field effect transistor M2, and the eleventh resistor R11 is connected in series between the gate of the second field effect transistor M2 and the collector of the second transistor Q2;

[0089] The twelfth resistor R12 is connected in series between the second control terminal of the backup battery pack charging circuit switch component and the base of the second transistor Q2, and the thirteenth resistor R13 is connected in parallel to the emitter of the second transistor Q2 and the ground terminal.

[0090] In one embodiment of the utility model, the charging base also includes a TVS tube 32 (transient voltage suppressor); the first end of the TVS tube 32 is respectively connected to the power supply end of the cleaning device charging circuit 11 and the power supply end of the backup battery pack charging circuit, and the second end of the TVS tube 32 is connected to the ground end.

[0091] The charging stand also includes a second capacitor C2, which can effectively reduce the ripple of the output voltage; it can also effectively suppress the situation where the output voltage quickly over-voltages in an unstable state.

[0092] In one embodiment of the present invention, Figure 6As shown, the circuit configuration structure of the cleaning device charging circuit 11 is the same as that of the backup battery pack charging circuit. Specifically, the cleaning device charging circuit 11 includes a cleaning device charging circuit 11 switch component, which is used to turn on or off the cleaning device charging circuit 11 to control the power supply to charge or cut off the battery pack 41 of the cleaning device.

[0093] In a preferred embodiment, the switch assembly of the cleaning device charging circuit 11 includes a third field effect transistor M3, a third triode O3, a fourth field effect transistor M4, and a fourth triode Q4. The connection structure of the third field effect transistor M3, the third triode O3, the fourth field effect transistor M4, and the fourth triode Q4 is the same as the connection structure of the first field effect transistor M1, the first triode Q1, the second field effect transistor M2, and the second triode Q2 in the backup battery pack charging circuit;

[0094] Similarly, the third field effect transistor M3, the third triode O3, the fourth field effect transistor M4, and the fourth triode Q4 are connected in combination with each other and various resistors are connected therebetween. For the specific connection structure, please refer to the backup battery pack charging circuit, which will not be described here.

[0095] In one embodiment of the utility model, it also includes a backup battery charging detection unit, and the configuration circuit structure of the backup battery charging detection unit is the same as that of the cleaning device charging detection unit 13; the backup battery charging detection unit is electrically connected to the second charging interface, and is used to output a charging detection signal of the backup battery pack 42 when the charging port of the backup battery pack 42 is docked with the second charging interface.

[0096] The charging detection signal of the backup battery pack 42 is used to control the conduction of the backup battery pack charging circuit so that the power supply charges the backup battery pack 42 .

[0097] It should be noted that the first control terminal is configured to output a second signal to instruct the first field effect transistor M1 to turn on based on receiving a charging detection signal from the backup battery pack 42 .

[0098] The charging detection signal of the backup battery pack 42 indicates that the backup battery pack 42 has been installed and the charging port of the backup battery pack 42 is docked with the second charging interface.

[0099] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0100] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A charging stand for a cleaning device, comprising a first charging interface docked with a charging port of a battery pack of the cleaning device, and a second charging interface docked with a charging port of a backup battery pack, characterized in that: The charging station also includes: A cleaning device charging circuit, used to charge the battery pack of the cleaning device when the charging port of the battery pack of the cleaning device is docked with the first charging interface; a backup battery pack charging circuit, used to charge the backup battery pack when the charging port of the backup battery pack is docked with the second charging interface; A cleaning device charging detection unit is electrically connected to the first charging interface, and is used to output a cleaning device charging detection signal when the charging port of the battery pack of the cleaning device is docked with the first charging interface to control the shutdown of the backup battery pack charging circuit.

2. The charging stand for the cleaning device according to claim 1, characterized in that: The first charging interface has a first positive connection end and a first negative connection end, the first positive connection end is used to connect to the positive charging port of the battery pack of the cleaning device, and the first negative connection end is used to connect to the negative charging port of the battery pack of the cleaning device; The cleaning device charging detection unit includes a first voltage detection circuit and / or a first current detection circuit; The first voltage detection circuit includes a first resistor, a second resistor and a third resistor, the first resistor and the second resistor are connected in series between the first positive electrode connection terminal and the ground terminal, one end of the third resistor is connected between the first resistor and the second resistor, and the other end is connected to the output end of the first voltage detection circuit; The first current detection circuit includes a fourth resistor and a fifth resistor, the fourth resistor is connected between the first negative electrode connection terminal and the ground terminal, one end of the fifth resistor is connected to the first negative electrode connection terminal, and the other end is connected to the output end of the first current detection circuit.

3. The charging stand for the cleaning device according to claim 1, characterized in that: The second charging interface has a second positive connection end, and the second positive connection end is used to connect to the positive charging port of the backup battery pack; The charging station also includes: The backup battery pack charging circuit switch component is connected in series between the power supply end of the backup battery pack charging circuit and the second positive connection end to control the shutdown of the backup battery pack charging circuit.

4. The charging stand for the cleaning device according to claim 3, characterized in that: The backup battery pack charging circuit switch assembly includes a first field effect transistor; The source of the first field effect transistor is connected to the power supply end of the backup battery pack charging circuit, the drain of the first field effect transistor is connected to the second positive connection end, and the gate of the first field effect transistor is connected to the first control end of the backup battery pack charging circuit switch component.

5. The charging stand for the cleaning device according to claim 4, characterized in that: The backup battery pack charging circuit switch assembly also includes a first transistor; The collector of the first transistor is connected to the gate of the first field effect transistor, the emitter of the first transistor is connected to the ground terminal, and the base of the first transistor is connected to the first control terminal of the backup battery pack charging circuit switch component.

6. The charging stand for the cleaning device according to claim 5, characterized in that: The backup battery pack charging circuit switch assembly also includes a sixth resistor, a seventh resistor, an eighth resistor and a ninth resistor; The sixth resistor is connected in parallel to the source and gate of the first field effect transistor, and the seventh resistor is connected in series between the gate of the first field effect transistor and the collector of the first transistor; The eighth resistor is connected in series between the first control terminal of the backup battery pack charging circuit switch component and the base of the first transistor, and the ninth resistor is connected in parallel to the emitter of the first transistor and the ground terminal.

7. The charging stand for the cleaning device according to claim 4, characterized in that: The backup battery pack charging circuit switch assembly also includes a second field effect transistor; The drain of the second field effect transistor is connected to the drain of the first field effect transistor, the source of the second field effect transistor is connected to the second positive electrode connection end, and the gate of the second field effect transistor is connected to the second control end of the backup battery pack charging circuit switch component.

8. The charging stand for the cleaning device according to claim 7, characterized in that: The backup battery pack charging circuit switch assembly also includes a second triode; The collector of the second transistor is connected to the gate of the second field effect transistor, the emitter of the second transistor is connected to the ground terminal, and the base of the second transistor is connected to the second control terminal of the backup battery pack charging circuit switch component.

9. The charging stand for the cleaning device according to claim 8, characterized in that: The backup battery pack charging circuit switch assembly further includes a tenth resistor, an eleventh resistor, a twelfth resistor and a thirteenth resistor; The tenth resistor is connected in parallel to the source and gate of the second field effect transistor, and the eleventh resistor is connected in series between the gate of the second field effect transistor and the collector of the second transistor; The twelfth resistor is connected in series between the second control terminal of the backup battery pack charging circuit switch assembly and the base of the second transistor, and the thirteenth resistor is connected in parallel to the emitter of the second transistor and the ground terminal.

10. The charging stand for a cleaning device according to any one of claims 1 to 9, characterized in that: The charging base also includes a TVS tube; The first end of the TVS tube is connected to the power supply end of the cleaning device charging circuit and the power supply end of the backup battery pack charging circuit respectively, and the second end of the TVS tube is connected to the ground end.

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