Charging control circuit of object dragging platform and object dragging platform

Abstract

The utility model provides a charging control circuit of an object dragging platform and the object dragging platform, and belongs to the technical field of intelligent charging. The charging control circuit comprises a first connection module, a second connection module, a switch module and a control module. The switch module controls the connection state of the first connection module and the second connection module so as to control the power supply state of the base station to the cleaning robot. The control module regulates and controls the on-off state of the switch module so as to control the connection state of the first connection module and the second connection module. When the cleaning robot and the object dragging platform are combined and in butt joint, and the object dragging platform and the base station are in butt joint, the control module can control the on-off state of the switch module, so that the base station can supply power to the object dragging platform and / or the cleaning robot. Through the charging control circuit, the object dragging platform and the cleaning robot can be independently charged or charged at the same time based on the same base station, and the problem that in a traditional scheme, a base station can only charge the cleaning robot, and consequently charging flexibility is low is solved.

Description

Technical Field

[0001] The present application belongs to the field of intelligent charging technology, and in particular relates to a charging control circuit of a towing platform and the towing platform. Background Art

[0002] With the continuous iteration and upgrading of intelligent technology, the application scenarios of intelligent robots have gradually broadened, and their functions and forms have become increasingly diverse. Among them, cleaning robots are a relatively common intelligent robot. They can clean floors through movement, mapping, obstacle avoidance, and path planning. When the cleaning robot's battery is low, it can be recharged through the corresponding base station, such as a charging base station, dust collection base station, or water exchange base station.

[0003] However, in home scenarios, the base station can only charge cleaning robots and cannot charge other devices, which lacks flexibility. Utility Model Content

[0004] The purpose of this application is to provide a charging control circuit for a towed device platform, aiming to solve the problem of low charging flexibility caused by the traditional base station being able to charge only one smart home appliance and unable to charge other devices.

[0005] The present application provides a charging control circuit for a towing platform, wherein the towing platform is used to carry household items. The charging control circuit includes:

[0006] a first connection module, wherein a first end of the first connection module is configured to be connected to a base station; when the cleaning robot is combined with and docked with the towing platform, and the towing platform is docked with the base station, the base station is capable of supplying power to the towing platform and / or the cleaning robot;

[0007] a second connecting module, wherein a first end of the second connecting module is used to connect to a cleaning robot; the cleaning robot is used to drive the towing platform to move after being combined with the towing platform;

[0008] a switch module, wherein a first end of the switch module is connected to the second end of the first connection module, and a second end of the switch module is connected to the second end of the second connection module, and is used to control the connection state between the first connection module and the second connection module, so as to control the power supply state of the base station to the cleaning robot;

[0009] A control module, wherein the control end of the control module is connected to the third end of the switch module, and the control module is used to adjust the on-off state of the switch module to control the connection state between the first connection module and the second connection module.

[0010] In one embodiment, the control module is used to control the switch module to conduct when the power of the cleaning robot is less than a first preset working power, so as to control the first connection module to connect with the second connection module, and the base station to supply power to the cleaning robot.

[0011] In one embodiment, the control module is used to regulate or keep the switch module disconnected when the power of the cleaning robot is greater than or equal to the first preset working power and the power of the towing platform is less than the second preset working power, so as to control the first connection module to disconnect from the second connection module and disconnect the power supply from the base station to the cleaning robot.

[0012] In one embodiment, the charging control circuit further includes:

[0013] a first detection module, wherein a first end of the first detection module is connected to a second end of the second connection module, and the first detection module is used to detect a connection status between the second connection module and the cleaning robot;

[0014] The detection end of the control module is connected to the second end of the first detection module, and is used to identify the connection status between the second connection module and the cleaning robot according to the first voltage signal of the second end of the first detection module.

[0015] In one embodiment, the first detection module includes:

[0016] a first resistor, one end of the first resistor being connected to a first power source;

[0017] a second resistor, one end of the second resistor being connected to the other end of the first resistor, and the other end of the second resistor being connected to the detection end of the control module;

[0018] a third resistor, one end of the third resistor being connected to the other end of the first resistor, and the other end of the third resistor being grounded;

[0019] a first diode, wherein an anode terminal of the first diode is connected to the other end of the first resistor, and a cathode terminal of the first diode is connected to the second end of the second connecting module;

[0020] a fourth resistor, one end of the fourth resistor being connected to the cathode end of the first diode, and the other end of the fourth resistor being grounded.

[0021] In one embodiment, the charging control circuit further includes:

[0022] The anti-reverse module has two ends connected to the second end of the first connecting module and the first end of the switch module respectively, and is used to prevent current from flowing from the cleaning robot to the base station.

[0023] In one embodiment, the charging control circuit further includes:

[0024] A second detection module is connected to the second end of the first connection module and is used to enable the controller of the base station to identify the connection status between the base station and the first connection module according to the second voltage signal of the second detection module through the second end of the first connection module.

[0025] In one embodiment, the first connection module includes:

[0026] A first connector is connected to a first electrode sheet of the towing platform, and the first electrode sheet is used to contact with a base station electrode sheet of the base station to achieve connection.

[0027] In one embodiment, the second connection module includes:

[0028] The second connector is connected to the second electrode sheet of the dragging platform, and the second electrode sheet is used to contact and connect with the cleaning robot electrode sheet of the cleaning robot.

[0029] In one embodiment, the switch module includes:

[0030] A field effect transistor, wherein the source of the field effect transistor is connected to the first connection module, the drain of the field effect transistor is connected to the second connection module, and the gate of the field effect transistor is connected to the control end of the control module.

[0031] In one embodiment, the switch module further includes:

[0032] A transistor, wherein the collector of the transistor is connected to the gate of the field effect transistor, the base of the transistor is connected to the control end of the control module, and the emitter of the transistor is grounded.

[0033] The present application provides a towing platform, comprising the charging control circuit described in any one of the above embodiments.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The charging control circuit is arranged in the shell of the towing platform. The connections between the base station, the first connection module, the switch module, the control module, the second connection module and the cleaning robot are all electrical connections. The switch module is connected between the first connection module and the second connection module, and can connect or disconnect the first connection module and the second connection module, thereby realizing switching control of the charging control circuit. By controlling the switch module to be turned on by the control module, the current flows from the base station to the first connection module, and flows to the cleaning robot through the second connection module, so that the base station can power the cleaning robot through the towing platform. By controlling the switch module to be disconnected by the control module, the current cannot flow from the first connection module to the second connection module, so that the base station cannot power the cleaning robot, and thus the base station can power the towing platform with higher power.

[0036] Therefore, through the charging control circuit of the towing platform provided by the present application, the control module adjusts the on-off state of the switch module to adjust the connection state of the first connection module and the second connection module, so that the base station can supply power to the cleaning robot through the towing platform, and because the towing platform is docked with the base station, the base station can also directly supply power to the towing platform. Thus, through the charging control circuit provided by the present application, the towing platform and the cleaning robot can be charged separately or simultaneously based on the same base station, making charging more flexible and efficient. Through the charging control circuit of the towing platform provided by the present application, the base station has flexibility and can charge other devices, solving the problem of low charging flexibility caused by the base station in the traditional solution that can only charge the cleaning robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0038] Figure 1 A schematic diagram of the mechanical structure connection between the towing platform, base station and cleaning robot provided in this application;

[0039] Figure 2 A schematic diagram of the household item, the mopping platform, and the cleaning robot provided for this application;

[0040] Figure 3 A schematic diagram of the module structure of the charging control circuit provided in this application;

[0041] Figure 4 A schematic diagram of the module structure of the first detection module provided in this application;

[0042] Figure 5 A schematic diagram of the circuit structure of the charging control circuit provided in this application;

[0043] Figure 6 A schematic diagram of the circuit structure of the first detection module provided in this application;

[0044] Figure 7 A schematic diagram of the module structure of the anti-reverse module provided in this application;

[0045] Figure 8 A schematic diagram of the module structure of the second detection module provided in this application;

[0046] Figure 9 A schematic diagram of the circuit structure of the second detection module provided in this application;

[0047] Figure 10 A schematic diagram of the circuit structure of the first connection module provided in this application;

[0048] Figure 11 A schematic diagram of the circuit structure of the second connection module provided in this application;

[0049] Figure 12 This is a schematic diagram of the circuit structure of the switch module provided in this application. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0051] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0054] See Figure 1 、 Figure 2 as well as Figure 3 The present application provides a charging control circuit 100 for a towing platform. The towing platform 200 is used to carry household items 500.

[0055] The charging control circuit 100 includes a first connection module 10, a second connection module 20, a switch module 30, and a control module 40. The first end of the first connection module 10 is used to connect to the base station 300. When the cleaning robot 400 is combined with the towing platform 200 and docked, and the towing platform 200 is docked with the base station 300, the base station 300 can supply power to the towing platform 200 and / or the cleaning robot 400. The first end of the second connection module 20 is used to connect to the cleaning robot 400. The cleaning robot 400 is used to charge the cleaning robot 400 after combining with the towing platform 200. Drive the towing platform 200 to move; the first end of the switch module 30 is connected to the second end of the first connection module 10, and the second end of the switch module 30 is connected to the second end of the second connection module 20, for controlling the connection state of the first connection module 10 and the second connection module 20, so as to control the power supply state of the base station 300 to the cleaning robot 400; the control end of the control module 40 is connected to the third end of the switch module 30, and the control module 40 is used to adjust the on-off state of the switch module 30 to control the connection state of the first connection module 10 and the second connection module 20.

[0056] Specifically, the household item 500 carried by the towing platform 200 can be a household appliance such as a humidifier, air purifier, or camera. The towing platform 200 is equipped with a power supply to power the household appliance it carries. The household item 500 can also be non-equipment household items such as tableware, paper towels, umbrellas, and towels. The cleaning robot 400 includes sweeping robots, mopping robots, and sweeping and mopping robots. The control module 40 can be a central processing unit, or it can be another general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The general-purpose processor can be a microprocessor, or the processor can also be any conventional processor.

[0057] like Figure 2As shown, the towing platform 200 and the cleaning robot 400 have been combined and docked. The cleaning robot 400 has the ability to move autonomously. Therefore, after the two devices are combined, the cleaning robot 400 can drive the towing platform 200 located above it to move, and can also drive the household items 500 located above the towing platform 200 to move and work. If the household items are household appliances, the household appliances carried on the towing platform 200 can achieve functions such as whole-house humidification, fixed-point humidification, or fixed-point purification while following the movement of the cleaning robot 400. If the household items 500 are non-equipment household items, the cleaning robot 400's mobile positioning function can be used to transport the household items.

[0058] After the towing platform 200 and the cleaning robot 400 are combined, the cleaning robot 400 carries the towing platform 200 along with it, allowing the cleaning robot 400 and the towing platform 200 to work together. Simultaneously, the cleaning robot 400 and the household appliances on the towing platform 200 can work together, achieving both floor cleaning and the positioning of household appliances. This eliminates the need for each appliance to operate independently, increasing the diversity of the working methods of the cleaning robot 400 and the household appliances. For users, simply using the cleaning robot 400 and the towing platform 200 allows them to locate and transport a variety of household appliances, eliminating the need to spend a large amount of money on multiple household appliances with mobile navigation capabilities. This saves money and eliminates the need for users to move equipment and transport items themselves, saving time and increasing user convenience.

[0059] It should be noted that Figure 2 The household object 500 is merely an example, and its specific form may vary depending on the household object 500. The household object 500 and the towing platform 200 are two independent items. That is, the household object 500 located above the towing platform 200 is detachable from the towing platform 200, allowing users to flexibly replace the household object 500 above the towing platform 200.

[0060] Specifically, if Figure 1 As shown, the towing platform 200 includes a supporting platform and a side housing connected to the supporting platform. A second electrode sheet 202 is provided on the inner side of the side housing, and a first coupling member 203 is provided at the bottom of the supporting platform. The first coupling member 203 is a snap-on member. A first electrode sheet 201 is provided on the outer side of the side housing of the towing platform 200. The cleaning robot 400 is provided with a cleaning robot electrode sheet 401 on the side and a second coupling member 402 on the top. The second coupling member 402 is a snap-on hole.

[0061] When the second electrode sheet 202 of the towing platform 200 contacts the electrode sheet 401 of the cleaning robot, an electrical connection is established between the towing platform 200 and the cleaning robot 400, i.e., the towing platform 200 and the cleaning robot 400 are successfully docked. After the docking is successful, the towing platform 200 lowers the first coupling member 203 to automatically couple with the second coupling member 402 of the cleaning robot 400 to achieve integration. After the integration is completed, the cleaning robot 400 can carry the towing platform 200 to dock with the base station 300.

[0062] A base station electrode pad 301 is provided at the lower end of the base station 300 housing. When the cleaning robot 400 carrying the towing platform 200 successfully docks with the base station 300, that is, when the first electrode pad 201 of the towing platform 200 contacts the base station electrode pad 301, an electrical connection is established between the towing platform 200 and the base station 300. The base station 300 is connected to the mains power supply and can provide power to the towing platform 200 and / or the cleaning robot 400.

[0063] It should be noted that the base station 300 is a charging base station corresponding to the cleaning robot 400 or a base station improved based on the charging base station of the cleaning robot 400 to reduce costs.

[0064] In this embodiment, the charging control circuit 100 is disposed within the housing of the towing platform 200. The connections between the base station 300, the first connection module 10, the switch module 30, the control module 40, the second connection module 20, and the cleaning robot 400 are all electrical. The switch module 30 is connected between the first connection module 10 and the second connection module 20, enabling the connection or disconnection of the first connection module 10 and the second connection module 20, thereby achieving on-off control of the charging control circuit 100. By controlling the switch module 30 to conduct through the control module 40, current flows from the base station 300 to the first connection module 10, and then through the second connection module 20 to the cleaning robot 400, enabling the base station 300 to power the cleaning robot 400 through the towing platform 200. The control module 40 controls the switch module 30 to be disconnected, so that current cannot flow from the first connection module 10 to the second connection module 20, so that the base station 300 cannot power the cleaning robot 400. As a result, the base station 300 can only power the towing platform 200. Therefore, the base station 300 can power the towing platform 200 with higher power.

[0065] Therefore, through the charging control circuit 100 of the towing platform 200 provided in the present application, the control module 40 regulates the on-off state of the switch module 30 to achieve the connection state of the first connection module 10 and the second connection module 20, so that the base station 300 can supply power to the cleaning robot 400 through the towing platform 200. Moreover, since the towing platform 200 is docked with the base station 300, the base station 300 can also directly supply power to the towing platform 200. Thus, through the charging control circuit 100 provided in the present application, the towing platform 200 and the cleaning robot 400 can be charged separately or simultaneously based on the same base station 300, making charging more flexible and efficient. Through the charging control circuit 100 of the towing platform 200 provided in the present application, the base station 300 has flexibility and can charge other devices, solving the problem of low charging flexibility caused by the base station 300 in the traditional solution that can only charge the cleaning robot 400.

[0066] In one embodiment, the control module 40 is used to control the switch module 30 to turn on when the power of the cleaning robot 400 is less than the first preset working power, so as to control the first connection module 10 to connect with the second connection module 20, and the base station 300 to supply power to the cleaning robot 400.

[0067] Specifically, the first preset working power is the remaining power of the cleaning robot 400, that is, the preset power to ensure that the cleaning robot 400 can perform the corresponding work task. The amount of the first preset working power can be set according to the battery capacity and manual experience, for example, it can be set to 60% of the full power of the cleaning robot 400.

[0068] In this embodiment, when the control module 40 detects that the cleaning robot 400's battery level is less than a first preset operating power level, it indicates that the cleaning robot 400 requires charging to continue its work. Furthermore, the control module 40 controls the switch module 30 to connect the first connection module 10 to the second connection module 20, enabling the base station 300 to charge the cleaning robot 400. While the base station 300 is charging the cleaning robot 400 and / or the towing platform 200, the control module 40 controls the switch module 30 to control the cleaning robot 400 to draw power from the base station 300 for charging, providing greater flexibility in charging the cleaning robot 400 and / or the towing platform 200.

[0069] In one embodiment, a communication connection exists between the towing platform 200 and the cleaning robot 400. The communication connection may include wired or wireless communication. For example, wired communication can be achieved by using the electrodes electrically connected between the towing platform and the cleaning machine as a communication line. Alternatively, wireless communication can be achieved via Bluetooth or Wi-Fi. The control module 40 can obtain the battery level of the cleaning robot 400 through the communication module of the towing platform 200. After obtaining the battery level of the cleaning robot 400, the control module 40 determines whether the cleaning robot 400 needs to be charged based on the battery level. Specifically, the control module 40 compares the battery level of the cleaning robot 400 with a first preset operating battery level. If the battery level of the cleaning robot 400 is less than the first preset operating battery level, it indicates that the cleaning robot 400 currently needs to be charged. The switch module 30 is then turned on to enable the base station 300 to supply power to the cleaning robot 400.

[0070] In one embodiment, if the control module 40 receives a charging instruction related to the cleaning robot 400 triggered by external factors such as human intervention, it is also necessary to control the switch module 30 to be turned on so that the base station 300 can charge the cleaning robot 400. For example, a charging instruction sent by a user through an APP (Application) is received.

[0071] In one embodiment, the control module 40 is used to regulate or keep the switch module 30 disconnected when the power of the cleaning robot 400 is greater than or equal to the first preset working power and the power of the towing platform 200 is less than the second preset working power, so as to control the first connection module 10 to disconnect from the second connection module 20 and disconnect the power supply from the base station 300 to the cleaning robot 400.

[0072] Specifically, the second preset working power level is the remaining power of the towing platform 200, i.e., the preset power level that ensures the towing platform 200 can perform the corresponding work task. The second preset working power level can be set based on the battery capacity and user experience. The second preset working power level and the first preset working power level can be set to the same value or different values.

[0073] In this embodiment, when the control module 40 detects that the power level of the cleaning robot 400 is greater than or equal to the first preset operating power level and the power level of the towing platform 200 is less than the second preset operating power level, it indicates that the cleaning robot 400 has sufficient power and has reached the first preset operating power level to perform the corresponding task, while the towing platform 200 has not reached the second preset operating power level to perform the corresponding task and needs to be charged to continue working. Therefore, if the switch module 30 is in the on state at this time, the control module 40 controls the switch module 30 to be off. If the switch module 30 is in the off state at this time, the control module 40 maintains the switch module 30 open, disconnecting the first connection module 10 from the second connection module 20, and preventing the base station 300 from charging the cleaning robot 400. The base station 300 can charge the towing platform 200 at a higher power level, allowing the towing platform 200 to reach the second preset power level required to perform the corresponding task at a faster charging speed.

[0074] When the cleaning robot 400 and / or the towing platform 200 receives power from the base station 300 for charging, the control module 40 detects the power levels of the cleaning robot 400 and the towing platform 200, controls the on / off state of the switch module 30, and adjusts the devices charged by the base station 300 so that the towing platform 200 can efficiently reach the power required for normal operation. Therefore, the charging control circuit 100 of the towing platform 200 provided in this application enables the towing platform 200 to quickly reach the power required to perform the corresponding work tasks, thereby improving the working efficiency of the towing platform 200.

[0075] In one embodiment, the control module 40 is connected to the energy storage module of the towing platform 200 and can obtain the power level of the towing platform 200. After obtaining the power level of the towing platform 200, the control module 40 determines whether the towing platform 200 needs to be charged based on the power level of the towing platform 200.

[0076] In one embodiment, if the control module 40 receives a charging instruction related to the tow platform 200 triggered by an external factor such as human, the tow platform 200 also needs to be charged. For example, a charging instruction is received from a user via an APP (Application).

[0077] See Figure 4In one embodiment, the charging control circuit 100 further includes a first detection module 50. A first end of the first detection module 50 is connected to a second end of the second connection module 20. The first detection module 50 is configured to detect the connection status between the second connection module 20 and the cleaning robot 400. A detection end of the control module 40 is connected to the second end of the first detection module 50 and is configured to identify the connection status between the second connection module 20 and the cleaning robot 400 based on a first voltage signal at the second end of the first detection module 50.

[0078] In this embodiment, when the second connection module 20 of the towing platform 200 is connected to the cleaning robot 400, that is, when the second electrode 202 of the towing platform 200 contacts the cleaning robot electrode 401, the voltage signal at the first terminal of the first detection module 50 changes, causing the first voltage signal at the second terminal of the first detection module 50 to also change. Furthermore, based on the first voltage signal at the second terminal of the first detection module 50 obtained at the detection terminal, the control module 40 can determine whether the second connection module 20 and the cleaning robot 400 are electrically connected, so that the control module 40 can subsequently control the switching module 30 to be turned on or off.

[0079] See Figure 5 and Figure 6 In one embodiment, the first detection module 50 includes a first resistor 510, a second resistor 520, a third resistor 530, a first diode 540, and a fourth resistor 550. One end of the first resistor 510 is connected to the first power supply VDD_3V3. One end of the second resistor 520 is connected to the other end of the first resistor 510. The other end of the second resistor 520 is connected to the detection end of the control module 40. One end of the third resistor 530 is connected to the other end of the first resistor 510. The other end of the third resistor 530 is grounded. The anode end of the first diode 540 is connected to the other end of the first resistor 510. The cathode end of the first diode 540 is connected to the second end of the second connection module 20. One end of the fourth resistor 550 is connected to the cathode end of the first diode 540, and the other end of the fourth resistor 550 is grounded.

[0080] It should be noted that, in this embodiment, the common end of the fourth resistor 550 connected to the first diode 540 serves as the first end of the first detection module 50 , and the other end of the second resistor 520 serves as the second end of the first detection module 50 .

[0081] In this embodiment, the first detection module 50 includes multiple resistors. One end of the first resistor 510 is connected to the first power supply, and a voltage is provided to the first detection module 50. The current output by the first power supply passes through the first resistor 510, the first diode 540 and the fourth resistor 550 to the ground terminal. The current provided by the first power supply passes through the third resistor 530 to the ground terminal. The common connection end of the fourth resistor 550 and the first diode 540 is connected to the second end of the second connection module 20. When the second connection module 20 of the towing platform 200 is connected to the cleaning robot 400, the voltage at the second end of the second connection module 20 changes, and then the voltage at the common connection end of the fourth resistor 550 and the first diode 540 changes, and further the voltage at the common connection end of the second resistor 520, the first diode 540, the third resistor 530 and the first resistor 510 changes. When the voltage at the common connection terminal of the second resistor 520, the first diode 540, the third resistor 530, and the first resistor 510 changes, the first voltage signal at the other end of the second resistor 520 changes, that is, the first voltage signal detected by the ADC (Analog-to-Digital Converter) detection terminal CHARGE_DET_ADC of the control module 40 also changes. Therefore, the first detection module 50 can identify the connection status between the second connection module 20 and the cleaning robot 400.

[0082] See Figure 7 In one embodiment, the charging control circuit 100 further includes an anti-reverse module 70. The two ends of the anti-reverse module 70 are respectively connected to the second end of the first connection module 10 and the first end of the switch module 30 to prevent current from flowing from the cleaning robot 400 to the base station 300.

[0083] In this embodiment, the anti-reverse module 70 can also be understood as an anti-backflow module, which is used to prevent the reverse flow of current. The two ends of the anti-reverse module 70 are respectively connected to the second end of the first connection module 10 and the first end of the switch module 30, so that the current output by the base station 300 flows unidirectionally from the first connection module 10 to the switch module 30, and then flows to the second connection module 20 to reach the cleaning robot 400, which can realize the power supply from the base station 300 to the cleaning robot 400, avoid the current from the cleaning robot 400 to flow back to the base station 300, and protect the charging control circuit 100.

[0084] In one embodiment, the anti-backflow module 70 includes at least one anti-backflow diode, with the anode and cathode of the anti-backflow diode serving as the two ends of the anti-backflow module 70. The anode of the anti-backflow diode is connected to the second end of the first connection module 10, and the cathode of the anti-backflow diode is connected to the first end of the switch module 30.

[0085] See Figure 8 In one embodiment, the charging control circuit 100 further includes a second detection module 60. The second detection module 60 is connected to the second end of the first connection module 10 and is configured to enable the controller of the base station 300 to identify the connection status between the base station 300 and the first connection module 10 based on the second voltage signal of the second detection module 60 via the second end of the first connection module 10.

[0086] In this embodiment, the second detection module 60 includes at least one resistor component and can be set according to the actual application scenario. When the base station 300 is connected to the first connection module 10 of the towing platform 200, that is, when the first electrode sheet 201 of the towing platform 200 and the base station electrode sheet 301 are in contact, the voltage signal at the second end of the first connection module 10 will change. Then, the second detection module 60 is connected to the second end of the first connection module 10, and the second voltage signal of the second detection module 60 also changes accordingly. After the second voltage signal of the second detection module 60 changes, the controller of the base station 300 can detect the change in the second voltage signal, thereby being able to know the connection status of the base station 300 and the first connection module 10 (which can also be understood as the connection status of the base station 300 and the towing platform 200), so that the base station 300 can cooperate with the towing platform 200 and / or the cleaning robot 400 to perform dust collection, water change and charging operations.

[0087] See Figure 9 In one embodiment, the second detection module 60 includes at least one fifth resistor 610. One end of the fifth resistor 610 is connected to the second end of the first connection module 10 (i.e., the second detection module 60 is connected to the second end of the first connection module 10), and the other end of the fifth resistor 610 is grounded. When the base station 300 is connected to the first connection module 10 of the towing platform 200, the voltage signal at the second end of the first connection module 10 changes, and the voltage signal of the fifth resistor 610 also changes accordingly, i.e., the second voltage signal of the second detection module 60 changes. The controller of the base station 300 can detect whether the base station 300 is connected to the first connection module 10 by detecting the change in the voltage signal of the fifth resistor 610.

[0088] See Figure 10 In one embodiment, the first connection module 10 includes a first connector 110. The first connector 110 is connected to a first electrode sheet 201 of the towing platform 200. The first electrode sheet 201 is used to contact with a base station electrode sheet 301 of the base station 300 to achieve connection.

[0089] It should be noted that, in this embodiment, the end of the first connector 110 connected to the first electrode sheet 201 of the towing platform 200 serves as the first end of the first connecting module 10 .

[0090] In this embodiment, the first connector 110 is connected to the first electrode sheet 201 of the tow platform 200. The first electrode sheet 201 contacts the base station electrode sheet 301 of the base station 300 to achieve connection, thereby establishing a connection between the first connection module 10 and the base station 300, thereby achieving an electrical connection between the tow platform 200 and the base station 300. The base station 300 can charge the tow platform 200 through the power transmission path from the base station electrode sheet 301 to the first electrode sheet 201 to the first connection module 10.

[0091] In one embodiment, the first connector 110 can be connected to the first electrode sheet 201 of the towing platform 200 by plugging, welding, crimping, screwing, conductive adhesive bonding, or spring contact.

[0092] In one embodiment, the first connection module 10 further includes a first filter capacitor 120 and a first transient voltage suppressor diode 130. One end of the first filter capacitor 120 is connected to pin 1 of the first connector 110 and is grounded. The other end of the first filter capacitor 120 is connected to pin 2 of the first connector 110. Pins 3 and 4 of the first connector 110 are grounded. The anode end of the first transient voltage suppressor diode 130 is grounded. The cathode end of the first transient voltage suppressor diode 130 is connected to pin 2 of the first connector 110. The other end of the first filter capacitor 120 and the cathode end of the first transient voltage suppressor diode 130 are both connected to the second detection module 60.

[0093] It should be noted that, in this embodiment, the common end connected to the first filter capacitor 120 , the pin 2 of the first connector 110 , and the first transient suppression diode 130 serves as the second end of the first connection module 10 .

[0094] The first transient voltage suppressor diode 130 suppresses transient voltage surges within the circuit. When a transient high-voltage surge occurs in the first connection module 10, the first transient voltage suppressor diode 130 activates within a few nanoseconds or picoseconds to absorb the transient high energy, thereby protecting the safety of subsequent circuits in the charging control circuit 100. The first filter capacitor 120 smoothes the voltage signal input to subsequent circuits, reduces noise, and provides transient current, maintaining the stability of the charging control circuit 100.

[0095] See Figure 11 In one embodiment, the second connection module 20 includes a second connector 210. The second connector 210 is connected to the second electrode sheet 202 of the dragging platform 200, and the second electrode sheet 202 is used to contact the cleaning robot electrode sheet 401 of the cleaning robot 400 to achieve connection.

[0096] It should be noted that, in this embodiment, one end of the second connector 210 connected to the second electrode sheet 202 of the towing platform 200 serves as the first end of the second connecting module 20 .

[0097] In this embodiment, the second connector 210 is connected to the second electrode sheet 202, and the second electrode sheet 202 is brought into contact with the cleaning robot electrode sheet 401 to achieve a connection, thereby achieving an electrical connection between the second connection module 20 and the cleaning robot 400, and thus an electrical connection between the towing platform 200 and the cleaning robot 400. When the towing platform 200 carrying the cleaning robot 400 is docked with the base station 300, and when the switch module 30 is turned on, the base station 300 can charge the cleaning robot 400 through the power transmission path of base station electrode sheet 301 - first electrode sheet 201 - first connection module 10 - switch module 30 - second connection module 20 - second electrode sheet 202.

[0098] In one embodiment, the second connection module 20 further includes a second filter capacitor 220 and a second transient suppressor diode 230. One end of the second filter capacitor 220 is connected to pin 2 of the second connector 210. The other end of the second filter capacitor 220 is grounded. The anode end of the second transient suppressor diode 230 is grounded. The cathode end of the second transient suppressor diode 230 is connected to pin 2 of the second connector 210. Pin 2 of the second connector 210 is connected to the second end of the switch module 30. Pins 1, 3, and 4 of the second connector 210 are grounded.

[0099] It should be noted that, in this embodiment, the common end of the second filter capacitor 220 connected to the second connector 210 serves as the second end of the second connection module 20 .

[0100] The second transient suppression diode 230 can suppress voltage transients in the circuit. The second filter capacitor 220 can smooth the voltage signal input to subsequent circuits, reduce noise, and provide transient current to maintain the stability of the charging control circuit 100.

[0101] See Figure 12 In one embodiment, the switch module 30 includes a field effect transistor 310; the source of the field effect transistor 310 is connected to the first connection module 10, the drain of the field effect transistor 310 is connected to the second connection module 20, and the gate of the field effect transistor 310 is connected to the control end of the control module 40.

[0102] It should be noted that, in this embodiment, the source of the field effect transistor 310 serves as the first end of the switch module 30 , the drain of the field effect transistor 310 serves as the second end of the switch module 30 , and the gate of the field effect transistor 310 serves as the third end of the switch module 30 .

[0103] In this embodiment, Figure 12 The field-effect transistor 310 shown is a packaged MOS transistor, which has strong current-carrying capacity and good heat dissipation capabilities. The packaged field-effect transistor 310 can optimize heat dissipation, allowing heat to be dissipated during the charging process. In one embodiment, the field-effect transistor 310 can also be a conventional MOS transistor, and the selection can be based on the actual scenario, and this application does not make specific restrictions.

[0104] Pins 1, 2, and 3 of the field-effect transistor 310 are the source electrodes and are connected to the first connector 110 of the first connection module 10. Pin 4 of the field-effect transistor 310 is the gate electrode and is connected to the control terminal pin K10_24V_EN of the control module 40. Pins 5, 6, 7, and 8 of the field-effect transistor 310 are the drain electrodes and are connected to the second connector 210 of the second connection module 20. The field-effect transistor 310 serves as a switch for the charging control circuit 100.

[0105] When the control module 40 detects that the power level of the cleaning robot 400 is less than a first preset operating power level, the control module 40 outputs a first control signal to the field-effect transistor 310 via the control pin K10_24V_EN, turning on the field-effect transistor 310. Current flows from the source to the drain of the field-effect transistor 310, thereby conducting electricity between the first connection module 10 and the second connection module 20. After the first connection module 10 and the second connection module 20 are conducted, current flows from the first connector 110 to the second connector 210, allowing current to flow from the base station 300 to the cleaning robot 400.

[0106] When the control module 40 detects that the cleaning robot 400's battery level is greater than or equal to a first preset operating power level and the towing platform 200's battery level is less than a second preset operating power level, it outputs a second control signal to the field-effect transistor 310 via the control pin K10_24V_EN, disconnecting the field-effect transistor 310. This disconnects the source and drain of the field-effect transistor 310, thus preventing electrical conduction between the first connection module 10 and the second connection module 20. With this disconnection, current cannot flow from the first connector 110 to the second connector 210, preventing current from flowing from the base station 300 to the cleaning robot 400, and preventing charging of the cleaning robot 400. Consequently, the base station 300 can charge the towing platform 200 at a higher power level.

[0107] Since the FET 310 is a P-type MOS tube, it is turned on at a low level and turned off at a high level. When the control module 40 resets the internal main control chip, the control pin K10_24V_EN of the control module 40 defaults to a low level, causing the FET 310 to be misleadingly turned on for a moment during the reset process.

[0108] Therefore, in order to solve the problem that the field effect transistor 310 may be mis-turned on for a moment during the reset process, see Figure 12 In one embodiment, the switch module 30 further includes a transistor 320, the collector of the transistor 320 is connected to the gate of the field effect transistor 310, and the base of the transistor 320 is connected to the control terminal of the control module 40. The emitter of the transistor 320 is grounded.

[0109] It should be noted that, in this embodiment, the source of the field effect transistor 310 serves as the first end of the switch module 30 , the drain of the field effect transistor 310 serves as the second end of the switch module 30 , and the base of the transistor 320 serves as the third end of the switch module 30 .

[0110] In this embodiment, pin 1 of transistor 320 is the base electrode, connected to control pin K10_24V_EN of control module 40. Pin 2 of transistor 320 is the emitter electrode, which is grounded. Pin 3 of transistor 320 is the collector electrode, connected to the gate of field-effect transistor 310. When control pin K10_24V_EN of control module 40 outputs a high level, transistor 320 is turned on, and collector pin 3 of transistor 320 outputs a low level, thereby controlling field-effect transistor 310 to be turned on. When control pin K10_24V_EN of control module 40 outputs a low level, transistor 320 is turned off, and collector pin 3 of transistor 320 outputs a high level, thereby controlling field-effect transistor 310 to be turned off.

[0111] In this embodiment, by adding a transistor 320 to the switch module 30, when the control pin K10_24V_EN of the control module 40 outputs a low level during the main control chip reset, the transistor 320 is disconnected, and the collector pin 3 of the transistor 320 outputs a high level, thereby controlling the field effect transistor 310 to be disconnected. This prevents the field effect transistor 310 from being mis-connected during the main control chip reset process of the control module 40, thereby protecting the control module 40 and the field effect transistor 310. Furthermore, when the field effect transistor 310 is broken down by the high voltage, the transistor 320 can protect the control module 40.

[0112] In one embodiment, the parameters of components such as the first resistor 510, the second resistor 520, the third resistor 530, the first diode 540, the fourth resistor 550, the anti-backflow diode, the fifth resistor 610, the first filter capacitor 120, the first transient suppression diode 130, the second filter capacitor 220, the second transient suppression diode 230, the field effect transistor 310 and the triode 320 can be adjusted according to the actual application scenario.

[0113] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other and are not used to limit the scope of protection of this application.

[0114] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0115] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0116] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0117] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A charging control circuit for a towing platform, wherein the towing platform (200) is used to carry household items, characterized in that: The charging control circuit includes: a first connection module (10), wherein a first end of the first connection module (10) is used to connect to a base station (300); when the cleaning robot (400) is combined with and docked with the towing platform (200), and the towing platform (200) is docked with the base station (300), the base station (300) is capable of supplying power to the towing platform (200) and / or the cleaning robot (400); a second connecting module (20), wherein a first end of the second connecting module (20) is used for connecting to a cleaning robot (400); the cleaning robot (400) is used for driving the towing platform (200) to move after being combined with the towing platform (200); a switch module (30), a first end of the switch module (30) being connected to the second end of the first connection module (10), and a second end of the switch module (30) being connected to the second end of the second connection module (20), for controlling the connection state between the first connection module (10) and the second connection module (20), so as to control the power supply state of the base station (300) to the cleaning robot (400); A control module (40), wherein a control end of the control module (40) is connected to a third end of the switch module (30), and the control module (40) is used to regulate the on-off state of the switch module (30) to control the connection state of the first connection module (10) and the second connection module (20).

2. The charging control circuit of the towing platform according to claim 1, characterized in that: The control module (40) is used to control the switch module (30) to be turned on when the power of the cleaning robot (400) is less than a first preset working power, so as to control the first connection module (10) to be connected to the second connection module (20), and the base station (300) to supply power to the cleaning robot (400).

3. The charging control circuit of the towing platform according to claim 1, characterized in that: The control module (40) is used to control or maintain the switch module (30) to be disconnected when the power level of the cleaning robot (400) is greater than or equal to a first preset working power level and the power level of the dragging platform (200) is less than a second preset working power level, so as to control the first connection module (10) to be disconnected from the second connection module (20), and to disconnect the power supply from the base station (300) to the cleaning robot (400).

4. The charging control circuit of the towing platform according to any one of claims 1 to 3, characterized in that: The charging control circuit further includes: a first detection module (50), wherein a first end of the first detection module (50) is connected to a second end of the second connection module (20), and the first detection module (50) is used to detect a connection state between the second connection module (20) and the cleaning robot (400); The detection end of the control module (40) is connected to the second end of the first detection module (50) and is used to identify the connection state between the second connection module (20) and the cleaning robot (400) based on the first voltage signal of the second end of the first detection module (50).

5. The charging control circuit of the towing platform according to claim 4, characterized in that: The first detection module (50) comprises: a first resistor (510), one end of the first resistor (510) being connected to a first power source; a second resistor (520), one end of the second resistor (520) being connected to the other end of the first resistor (510), and the other end of the second resistor (520) being connected to a detection end of the control module (40); a third resistor (530), one end of the third resistor (530) being connected to the other end of the first resistor (510), and the other end of the third resistor (530) being grounded; a first diode (540), wherein an anode terminal of the first diode (540) is connected to the other end of the first resistor (510), and a cathode terminal of the first diode (540) is connected to the second end of the second connection module (20); A fourth resistor (550), one end of the fourth resistor (550) is connected to the cathode end of the first diode (540), and the other end of the fourth resistor (550) is grounded.

6. The charging control circuit of the towing platform according to claim 4, characterized in that: The charging control circuit further includes: An anti-reverse module (70), two ends of which are respectively connected to the second end of the first connection module (10) and the first end of the switch module (30), and is used to prevent current from flowing from the cleaning robot (400) to the base station (300).

7. The charging control circuit of the towing platform according to any one of claims 1 to 3, characterized in that: The charging control circuit further includes: A second detection module (60) is connected to the second end of the first connection module (10) and is used to enable the controller of the base station (300) to identify the connection status between the base station (300) and the first connection module (10) based on the second voltage signal of the second detection module (60) through the second end of the first connection module (10).

8. The charging control circuit of the towing platform according to any one of claims 1 to 3, characterized in that: The first connection module (10) comprises: A first connector (110) is connected to a first electrode sheet (201) of the towing platform (200), and the first electrode sheet (201) is used to contact and connect with a base station electrode sheet (301) of the base station (300).

9. The charging control circuit of the towing platform according to any one of claims 1 to 3, characterized in that: The second connection module (20) comprises: A second connector (210) is connected to a second electrode sheet (202) of the object-dragging platform (200), and the second electrode sheet (202) is used to contact and connect with a cleaning robot electrode sheet (401) of the cleaning robot (400).

10. The charging control circuit of the towing platform according to any one of claims 1 to 3, characterized in that: The switch module (30) comprises: A field effect transistor (310), wherein the source of the field effect transistor (310) is connected to the first connection module (10), the drain of the field effect transistor (310) is connected to the second connection module (20), and the gate of the field effect transistor (310) is connected to the control end of the control module (40).

11. The charging control circuit of the towing platform according to claim 10, characterized in that: The switch module (30) further comprises: A transistor (320), wherein the collector of the transistor (320) is connected to the gate of the field effect transistor (310), the base of the transistor (320) is connected to the control end of the control module (40), and the emitter of the transistor (320) is grounded.

12. A towing platform, characterized in that: The charging control circuit comprises the charging control circuit according to any one of claims 1 to 11.

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