Suction head, dust collection equipment and suction head control circuit

Abstract

The invention provides a suction head, dust collection equipment and a suction head control circuit, and relates to the technical field of electric appliances, the suction head comprises a power supply module, a floor brush device, an operation state detection device, an air duct and a control device; the power module is configured to supply direct current to the floor brush device, the running state detection device and the control device, and the floor brush device is electrically connected with the control device; the running state detection device can switch state signals in response to fluid suction change in the air duct; the floor brush device is configured to operate or close according to switching of the state signal; according to the invention, real-time state monitoring and independent operation control of the suction head can be realized, and the control difficulty and logic operation complexity of the dust collection main body are reduced.

Description

Technical Field

[0001] This application relates to the field of electrical technology, and in particular to a suction head, a vacuum cleaner, and a suction head control circuit. Background Technology

[0002] To ensure effective vacuuming, most vacuum cleaners on the market use AC-powered vacuum sources. However, AC vacuum cleaners cannot be directly adapted to DC-driven floor brush motors. Therefore, existing AC vacuum cleaners usually do not have a floor brush mechanism, or they use AC-DC conversion devices and complex circuits and wiring to meet the operating environment and power supply requirements of the floor brush motor. However, this approach not only introduces problems such as increased costs and complex setup, but also causes drawbacks such as increased control complexity and logic operation requirements between the AC vacuum source and the DC floor brush motor. Summary of the Invention

[0003] This application provides a suction head, a vacuuming device, and a suction head control circuit that can reduce costs and simplify control and logic operations.

[0004] On the one hand, this application provides a suction head, a power module, a floor brush device, an operating status detection device, an air duct, and a control device; The power module is configured to supply DC power to the floor brush device, the operating status detection device and the control device respectively, and the floor brush device is electrically connected to the control device; The operating status detection device can switch status signals in response to changes in fluid suction within the air duct. The floor brush device is configured to operate or shut down according to the status signal.

[0005] Optionally, the operating status detection device is disposed in the air duct, and can switch the status signal to an open signal when the fluid suction in the air duct is higher than a preset suction, and can switch the status signal to a closed signal when the fluid suction in the air duct is lower than the preset suction.

[0006] Optionally, the fluid suction force being higher than the preset suction force indicates that there is fluid suction force in the air duct, and the fluid suction force being lower than the preset suction force indicates that there is no fluid suction force in the air duct.

[0007] Preferably, the preset suction force is the lower limit of the fluid suction force in the air duct when the air duct is connected to the vacuum source of the vacuum body and the vacuum source is in operation.

[0008] Preferably, the preset suction force is the lower limit of the suction force required to be achieved in the air duct when there is fluid suction within the air duct and the bottom surface of the suction head is in contact with the surface to be cleaned.

[0009] Optionally, the operating status detection device includes a blocking element disposed in the air duct and a trigger switch disposed on the side wall of the air duct; One end of the blocking member is connected to the side wall of the air duct, and the other end is a free end. The blocking member can at least partially block the air duct. The free end of the blocking member can move to the side wall of the air duct and trigger the trigger switch when the fluid suction force in the air duct is higher than the preset suction force, so that the state signal of the trigger switch switches to an open signal; and The free end of the blocking member can detach from the side wall of the air duct when the fluid suction force in the air duct is lower than the preset suction force, so that the state signal of the trigger switch is switched to the off signal.

[0010] Preferably, the operating status detection device includes a mechanical sensor switch, which is configured to trigger in response to the fluid suction force in the air duct being higher than the preset suction force to generate an opening signal, and to close in response to the fluid suction force in the air duct being lower than the preset suction force to generate a closing signal. Alternatively, the mechanical sensing switch is configured to trigger when the duct vibration state corresponding to the fluid suction of the duct meets a preset vibration state, thereby generating an opening signal, and to close when the duct vibration state corresponding to the fluid suction of the duct does not meet the preset vibration state, thereby generating a closing signal.

[0011] Optionally, one end of the blocking member is rotatably connected to the sidewall of the air duct; or, The blocking member is a flexible baffle, and a thin area is provided at one end of the blocking member that is connected to the side wall of the air duct. The blocking member can rotate about the thin area as an axis.

[0012] Preferably, the blocking member has a groove on the side opposite to the bottom surface of the suction head, and the bottom of the groove forms the thin area.

[0013] Optionally, the sidewall of the air duct is provided with a receiving cavity, which can accommodate a blocking member that moves to the sidewall of the air duct.

[0014] Preferably, the bottom of the accommodating cavity is provided with a limiting section and a gap section along the direction of fluid suction. When the blocking member is housed in the accommodating cavity, the limiting section abuts against the blocking member, and the gap section is spaced apart from the blocking member.

[0015] Optionally, a magnetic element is provided at the free end of the blocking member, and the trigger switch can be triggered by the magnetic element when the free end moves to the side wall of the air duct.

[0016] Optionally, the floor brush device is configured to operate in response to the activation signal; Optionally, the floor brush device is configured to turn off according to the off signal; Optionally, the floor brush device is configured to operate for a first preset duration based on the duration of the activation signal; Optionally, the floor brush device is configured to turn off after a second preset duration based on the duration of the off signal; Optionally, the control device is configured to monitor the status signal of the operating status detection device, and the control device is configured to control the operation of the floor brush device in response to the activation signal.

[0017] Preferably, the control device is configured to control the floor brush device to turn off in response to the shutdown signal.

[0018] Preferably, the control device is configured to control the operation of the floor brush device in response to the duration of the activation signal reaching a first preset duration.

[0019] Preferably, the control device is configured to control the suction head to shut down in response to the duration of the shutdown signal reaching a second preset duration.

[0020] Optionally, the suction head further includes a ground-lift sensing device configured to activate the floor brush device when the bottom surface of the suction head is in contact with the surface to be cleaned, and to deactivate the floor brush device when the bottom surface of the suction head is removed from the surface to be cleaned.

[0021] Optionally, the ground-lift sensing device includes a distance sensor configured to detect the distance between the bottom surface of the suction head and the surface to be cleaned, generate a first distance signal when the distance indicates that the bottom surface of the suction head is in contact with the surface to be cleaned, generate a second distance signal when the distance indicates that the bottom surface of the suction head is detached from the surface to be cleaned, and be configured to feed back the first distance signal and the second distance signal to the control device.

[0022] Preferably, the control device is configured to control the operation of the floor brush device in response to the activation signal and the first distance signal.

[0023] Preferably, the control device is configured to control the operation of the floor brush device in response to the duration of the activation signal and the first distance signal reaching a first preset duration.

[0024] Preferably, the control device is configured to control the floor brush device to turn off in response to either the off signal or the second distance signal.

[0025] Preferably, the control device is configured to control the suction head to shut down in response to the duration of the shutdown signal or the second distance signal reaching a second preset duration.

[0026] Preferably, the suction head further includes at least one auxiliary function device, which includes at least one of a dust detection device, a mite removal device, or a sterilization device.

[0027] Preferably, the operating status detection device includes a mechanical sensing switch that is triggered based on the vibration state of the air duct satisfying a preset vibration state. The control device responds to at least one of the following: the activation signal, the duration of the activation signal reaching a first preset duration, the presence of the activation signal and the first distance signal, or the duration of the activation signal reaching the first preset duration and the presence of the first distance signal, by controlling the operation of at least one of the floor brush device, lighting device, power indicator module, or auxiliary function devices. Preferably, the control device responds to the second distance signal or the duration of the second distance signal reaching a second preset duration by controlling the floor brush device to turn off.

[0028] Preferably, the operating status detection device includes a mechanical induction switch triggered based on the fluid suction force in the air duct being higher than the preset suction force. The control device responds to at least one of the following: the opening signal, the duration of the opening signal reaching a first preset duration, the presence of the opening signal and the first distance signal, or the duration of the opening signal reaching the first preset duration and the first distance signal reaching the first preset duration, by controlling the operation of at least one of the floor brush device, the lighting device, the power indicator module, or each of the auxiliary function devices. Preferably, the control device responds to at least one of the following: the closing signal, the second distance signal, the duration of the closing signal reaching a second preset duration, or the duration of the second distance signal reaching a second preset duration, by controlling the floor brush device to close, or controlling the lighting device, the power indicator module, or each of the auxiliary function devices to close.

[0029] Optionally, the ground-off sensing device includes a ground-contact transmission mechanism and a micro switch, wherein the micro switch is disposed between the power module and the ground brush device; The ground contact transmission mechanism can trigger the micro switch when the bottom surface of the suction head contacts the surface to be cleaned, so that the power module can supply power to the floor brush device, and can stop triggering the micro switch when the bottom surface of the suction head is removed from the surface to be cleaned, so as to cut off the power supply to the power module and the floor brush device.

[0030] Preferably, the floor brush device operates when the control device receives the activation signal and the micro switch is in the triggered state.

[0031] Preferably, the floor brush device is turned off if the control device receives either the shutdown signal or the micro switch is in a non-triggered state.

[0032] Preferably, if the control device receives the shutdown signal or the micro switch remains in a non-triggered state for a duration of a second preset duration, the suction head is controlled to shut down.

[0033] Optionally, the ground-contact transmission mechanism includes a roller and a transmission component connected to the roller, and the micro switch includes a micro switch body and a trigger element; The roller is configured to contact the surface to be cleaned and apply pressure to the trigger via the transmission member, so that the trigger member closes with the micro switch body and reaches the trigger state.

[0034] Optionally, the ground-based sensing device includes a vacuum detection device disposed within the air duct and electrically connected to the power module, configured to collect vacuum information indicating the vacuum level within the air duct.

[0035] Preferably, the control device is configured to control the operation of the floor brush device in response to the activation signal and the vacuum information exceeding a preset vacuum level.

[0036] Preferably, the control device is configured to control the floor brush device to operate in response to the activation signal and the vacuum information exceeding the preset vacuum level for a duration of a first preset duration.

[0037] Preferably, the control device is configured to control the floor brush device to shut down in response to either the shutdown signal or the vacuum level information not exceeding a preset vacuum level.

[0038] Preferably, the control device is configured to control the suction head to shut down in response to the shutdown signal or the vacuum information not exceeding the preset vacuum level for a duration of a second preset duration.

[0039] Optionally, the suction head further includes a power indicator module, and the control device is configured to: Monitor the power supply information of the power module; The power indicator module is controlled to display the power status of the power module based on the power information; if the power information indicates that the power of the power module is lower than the preset power, the power indicator module displays a power alarm status.

[0040] Optionally, the suction head further includes a lighting device electrically connected to the power module, and the control device is configured to: When it is necessary to control the operation of the floor brush device, control the lighting device to turn on; When it is necessary to control the floor brush device to turn off, control the lighting device to turn off.

[0041] Optionally, the suction head further includes a switch control element; The switch control element is exposed on the outer surface of the suction head; or... The switch control element is disposed at the first connection end of the suction head, and the switch control element is triggered by the connection state between the first connection end and the second connection end of the vacuum body; Optionally, the control device is configured to control the operation of the operating status detection device in response to the triggering of the switch control element.

[0042] Preferably, the control device is configured to control the operation of the ground-based sensing device in response to the triggering of the switch control element.

[0043] Preferably, the control device is configured to control the operation of the power indicator module in response to the triggering of the switch control element.

[0044] Preferably, the power module is configured to supply power to the control device via a trigger power supply circuit; the trigger power supply circuit is configured to be turned on in response to the start signal of the operating status detection device.

[0045] Preferably, the control device is configured to control the power supply self-locking circuit to turn on in response to the conduction of the trigger power supply circuit, the power supply self-locking circuit being used to maintain the conduction state of the trigger power supply circuit in the on state.

[0046] Preferably, the suction head further includes a dust detection device disposed in the air duct, the dust detection device being configured to collect dust concentration data of the fluid in the air duct and send the dust concentration data to the control device.

[0047] Preferably, the control device is configured to send the dust concentration data to the display module so that the display module displays the dust concentration data.

[0048] Preferably, the suction head further includes a flow regulating device, and the control device is further configured to control the opening of the flow regulating device according to the dust concentration data to regulate the vacuum level in the air duct.

[0049] Preferably, the dust concentration indicated by the dust concentration data is positively correlated with the vacuum level within the air duct.

[0050] Preferably, the flow regulating device includes a regulating valve and a vent, the vent being connected to the air duct via the regulating valve, and the opening degree of the regulating valve being negatively correlated with the vacuum degree in the air duct.

[0051] Preferably, the flow rate regulating device includes a ground clearance regulating device configured to adjust the ground clearance between the bottom surface of the suction head and the surface to be cleaned, wherein the ground clearance adjusted by the ground clearance regulating device is negatively correlated with the vacuum level in the air duct.

[0052] Optionally, the suction head is provided with a first connecting end located at the end of the air duct, the first connecting end being detachably connected to a second connecting end of the vacuum body, so that the air duct and the fluid channel of the vacuum body are connected to form a continuous channel; The first connecting end includes an elastic joint for abutting against the second connecting end, the inner diameter of the elastic joint being adjustable.

[0053] Optionally, the suction head further includes a grip, which is disposed on the housing of the suction head.

[0054] The grip extends from the housing in a direction away from the floor brush device, or the grip extends from the housing in a direction close to the first connection end, or the grip is arranged in an inverted U-shape on the housing.

[0055] Preferably, the power module is located at the end of the air duct furthest from the floor brush device; Preferably, the power module includes a battery pack module, which is disposed at the end of the air duct away from the floor brush device and located in front of the air duct.

[0056] On the other hand, this application provides a suction head control circuit, including: a power module, a preset switch and a control device; the preset switch is configured to be open or closed based on at least one of the following: fluid suction change in the air duct, air duct vibration state, contact state between the bottom surface of the suction head and the surface to be cleaned, or connection state between the suction head and the vacuum cleaner body.

[0057] Preferably, the preset switch includes at least one of a trigger switch, a force-sensing switch, or a switch control element.

[0058] Preferably, the trigger switch is configured to open or close based on changes in fluid suction within the duct.

[0059] Preferably, the mechanical sensing switch is configured to open or close based on at least one of the duct vibration state, a first distance signal, or a second distance signal.

[0060] Preferably, the switch control is configured to open or close based on the connection state between the suction head and the vacuum body.

[0061] Preferably, the trigger switch includes a Hall switch.

[0062] Preferably, the mechanical sensing switch includes at least one of a vibration switch or a pressure switch.

[0063] Preferably, the switch control element includes a mechanical switch.

[0064] Preferably, the suction head control circuit includes a trigger power supply circuit, which is turned on in response to the closing of the preset switch, so that the power module supplies power to the control device.

[0065] Preferably, the suction head control circuit further includes a power supply self-locking circuit, and the control device is configured to control the power supply self-locking circuit to be turned on in response to the conduction of the trigger power supply circuit. The power supply self-locking circuit is used to maintain the conduction state of the trigger power supply circuit in the on state.

[0066] Preferably, the suction head control circuit further includes a status signal detection circuit, configured to detect the status signal of the preset switch and feed the status signal back to the control device; the status signal includes an open signal corresponding to the preset switch being closed or an open signal corresponding to the preset switch being open.

[0067] Preferably, the suction head further includes a ground-lift sensing device configured to detect the contact state between the bottom surface of the suction head and the surface to be cleaned; the suction head control circuit further includes a ground-lift detection circuit configured to supply power to the ground-lift sensing device based on the control device, or to feed back data corresponding to the contact state between the bottom surface and the surface to be cleaned to at least one of the control devices.

[0068] Preferably, the suction head includes any one of a floor brush device, a lighting device, or a dust detection device, and the floor brush device includes a DC floor brush motor; the control circuit further includes at least one of a lighting control circuit, a motor control circuit, or a dust detection circuit.

[0069] Preferably, the lighting control circuit is configured to control the opening and closing of the lighting device based on the control device.

[0070] Preferably, the motor control circuit is configured to control the operation and shutdown of the DC floor brush motor based on the control device.

[0071] Preferably, the dust detection circuit is configured to power the dust detection device based on the control device or to feed back the detected dust concentration data to the control device.

[0072] On the other hand, this application provides a control method for a suction head, the suction head including a power module, a floor brush device, an operating status detection device, an air duct, and a control device; the power module is configured to provide DC power to the floor brush device, the operating status detection device, and the control device respectively, the floor brush device being communicatively connected to the control device; the operating status detection device is capable of switching a status signal in response to changes in fluid suction within the air duct; the method includes: The floor brush device is turned on or off based on the switching of the status signal.

[0073] On the other hand, this application also provides a control device for a suction head, the suction head including a power module, a floor brush device, an operating status detection device, an air duct, and a control device; the power module is configured to provide DC power to the floor brush device, the operating status detection device, and the control device respectively, the floor brush device being communicatively connected to the control device; the operating status detection device is capable of switching a status signal in response to changes in fluid suction within the air duct; the device is used for: The floor brush device is turned on or off based on the switching of the status signal.

[0074] On the other hand, this application also provides a control device for a suction head, the device including a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor to implement the control method for the suction head as described above.

[0075] On the other hand, this application also provides a vacuuming device, including a vacuuming body and a suction head as described above.

[0076] On the other hand, this application also provides a control system for a suction head, the system including the above-mentioned control device or control equipment for a suction head.

[0077] On the other hand, this application also provides a computer-readable storage medium storing at least one instruction or at least one program, which is loaded and executed by a processor to implement the control method applied to the suction head as described above.

[0078] This application provides a control method, device, equipment, system, storage medium, suction head, vacuuming equipment, and suction head control circuit for use in suction heads, which has the following technical advantages: The suction head of this application includes an independent power module and control device, and is equipped with an operation status detection device. The power module enables DC power supply to electrical components such as the floor brush, eliminating the need for AC / DC conversion through the vacuum cleaner body or the suction head itself. This avoids the need for complex components, circuits, and wiring on the vacuum cleaner body, reducing costs. Simultaneously, the operation status detection device switches its status signal based on changes in fluid suction within the air duct, thereby causing the floor brush to operate or shut down based on the status signal switching. This achieves operation and real-time status switching on the suction head side, reducing dependence on the control of the vacuum cleaner body, thus reducing control difficulty and logical computation complexity. Furthermore, the suction head has an independent power supply, control device, and corresponding automatic detection and control capabilities, enabling it to adapt to different vacuum cleaner bodies and achieving diverse product compatibility.

[0079] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0080] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0081] Figure 1 This is a schematic block diagram of a suction head provided in an embodiment of this application; Figure 2 This is a schematic block diagram of another suction head provided in an embodiment of this application; Figure 3 This is a schematic block diagram of the structure of a vacuum cleaner body provided in an embodiment of this application; Figure 4 This is a schematic block diagram of another suction head provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the suction head assembly of the vacuum cleaner body provided in the embodiments of this application; Figure 6 This is another structural schematic diagram of the suction head assembly of the vacuum cleaner body provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of an operating status detection device whose status signal is a shutdown signal, provided in an embodiment of this application. Figure 8 for Figure 7 A schematic diagram of the structure of the operating status detection device switching from a status signal to an on signal; Figure 9A schematic block diagram of another suction head provided in an embodiment of this application; Figure 10 This is a schematic diagram of another suction head and fluid channel provided in an embodiment of this application; Figure 11 yes Figure 10 A schematic diagram showing the connection between the suction head and the fluid channel; Figure 12 This is a schematic diagram of another suction head provided in an embodiment of this application; Figure 13 This is a schematic diagram of another suction head provided in an embodiment of this application; Figure 14 This is a schematic diagram of another suction head provided in an embodiment of this application; Figure 15 This is a schematic diagram of another suction head provided in an embodiment of this application; Figure 16 This is a schematic diagram of the connection state between another suction head and the fluid channel provided in an embodiment of this application; Figure 17 This is a flowchart illustrating another control method provided in an embodiment of this application; Figure 18 This is a schematic diagram of the structure of a vibration switch provided in an embodiment of this application; Figure 19 This is a schematic diagram of another suction head provided in an embodiment of this application.

[0082] Figure 20 This is a schematic diagram of a suction head control circuit provided in an embodiment of this application.

[0083] Figure 21 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application; Reference numerals: Original suction head - 10, main suction body - 100, vacuum source - 110, vacuum motor - 111, collection device - 112, fluid channel - 120, AC plug - 130, suction head - 200, DC floor brush motor - 201, roller brush assembly - 202, control device - 203, power module - 204, motor drive module - 205, power indicator module - 206, operating status detection device - 207, blocking element - 2071, free end - 2071a, groove - 2071b, trigger switch - 2072, magnetic element - 2073, switch detection module - 208, switch control element - 209, storage module - 210 Lighting device-211, Lighting lamp-2111, Grip-212, Flexible joint-213, Air duct-214, Air duct sidewall-215, Accommodating cavity-216, Limiting section-2161, Gap section-2162, Ground clearance sensor-217, Vent-out port-218, Preset switch-219, Trigger power supply circuit-220, Power supply control switch-2201, Power supply circuit assembly-2202, Power supply self-locking circuit-221, Status signal detection circuit-222, Motor control circuit-223, Switch housing-2074a, Spring wire pin-2074b, Trigger conductive element-2074c, Vibration spring-2074d. Detailed Implementation

[0084] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0085] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0086] The following combination Figure 1-12This application introduces a suction head 200 that can be detachably connected to a vacuum body 100 having a vacuum source 110, and forms a continuous channel communicating with the vacuum source 110.

[0087] Specifically, refer to Figure 3 , Figure 5 and Figure 6 The vacuum cleaner body 100 is the part of the AC vacuum cleaner that is directly powered by AC power. It includes a main housing, a vacuum source 110 located within the main housing, and a fluid channel 120 fluidly connected to the vacuum source 110. The vacuum source 110 may include a vacuum motor 111, which is a power source for providing fluid suction. In this embodiment, the vacuum motor 111 is AC powered and can be directly powered by mains power to provide suction acting on the fluid channel 120. The fluid channel 120 is formed within the main housing or in the main housing and a second connecting member connected to the main housing. The end of the fluid channel 120 is the second connecting end of the vacuum cleaner body 100, serving as the air duct port of the vacuum cleaner body 100. The vacuum cleaner body 100 may also include a main control board, which is communicatively connected to components such as the vacuum source 110 to control the vacuum cleaner body 100. Exemplarily, the vacuum cleaner body 100 can be the vacuum cleaner body of a horizontal vacuum cleaner, an upright vacuum cleaner, or a handheld vacuum cleaner.

[0088] Specifically, refer to Figure 1 , Figure 3 and Figure 4 The suction head 200 includes a power module 204, a floor brush device, an operation status detection device 207, an air duct 214, and a control device 203. The power module 204 is configured to supply DC power to the floor brush device, the operation status detection device 207, and the control device 203 respectively. The floor brush device is communicatively connected to the control device 203. The operation status detection device 207 can switch status signals in response to changes in fluid suction within the air duct 214. The floor brush device is configured to operate or shut down according to the switching of the status signals.

[0089] In a possible implementation, the floor brush device includes a DC floor brush motor 201 and a roller brush assembly 202. The DC floor brush motor 201 is drive-connected to the roller brush assembly 202, electrically connected to a power module 204, and communicatively connected to a control device 203. The power module 204 supplies power to the DC floor brush motor 201, the operation status detection device 207, and the control device 203 carried in the suction head 200, so as to realize the information acquisition of the operation status detection device 207 and the motion control of the roller brush assembly 202.

[0090] In possible implementations, refer to Figure 4-6 , Figure 10-11The suction head 200 also has a first connecting end located at the end of the air duct 214. The first connecting end is detachably connected to a second connecting end of the vacuum body 100, so that the air duct 214 communicates with the fluid channel 120 of the vacuum body 100 to form a continuous channel. The fluid channel 120 is fluidly connected to the vacuum source 110, providing airflow and suction to the suction head 200, so that the roller brush assembly 202 can efficiently pick up dust and other substances with the help of the vacuum source 110 through the airflow and suction provided by the fluid channel 120, thereby improving the cleaning effect. In a possible embodiment, the air duct 214 is formed inside the housing, or formed in the housing and the first connecting member connected to the housing.

[0091] In possible implementations, refer to Figure 12 The first connecting end includes a resilient connector 213 for abutting against the second connecting end, and the inner diameter of the resilient connector 213 is adjustable. The resilient connector 213 is made of an elastic material so that its inner diameter can change under external force, allowing it to adapt to second connecting ends of various sizes, and thus enabling universal assembly with vacuum cleaner bodies of different sizes. The resilient connector 213 can be disposed on the first connecting member, and the material of the first connecting member can be entirely made of an elastic material or only the resilient connector 213 can be made of an elastic material.

[0092] In a possible implementation, the power module 204 includes a battery pack for providing power to the suction head 200. Preferably, the power module 204 can also feed back battery pack data to the control device 203. The battery pack data may include, but is not limited to, power information. Specifically, the power module 204 can be detachably mounted on the body of the suction head 200 for charging, or it can be fixedly mounted on the body of the suction head 200. In the latter case, the suction head 200 is also provided with a charging port and / or a removable cover for replacing the battery, which covers the battery pack. Exemplarily, the power module 204 may include multiple battery packs, and each battery pack may include multiple individual battery cells.

[0093] In a possible implementation, the DC floor brush motor 201 drives the roller brush assembly 202, operating on DC power, as shown in the reference. Figure 1 and Figure 2The system may include a motor drive module 205 communicatively connected to the control device 203 and a floor brush motor body electrically connected to the motor drive module 205. The floor brush motor body is driveably connected to the roller brush assembly 202. The floor brush motor body is controlled by the motor drive module 205, which can control the floor brush motor body to operate at a corresponding power according to the operating parameters carried by the control commands sent by the control device 203, thereby driving the roller brush assembly 202 to rotate. The control commands here are generated by the control device 203 at least based on the status signal of the operating status detection device 207. For example, the motor drive module 205 may include an amplifier to amplify the electrical signal sent by the control device 203, or the motor drive module 205 may include semiconductor devices such as transistors to control the current value in the motor drive module 205, thereby controlling the speed, torque, or direction of the floor brush motor. By setting the operating parameters of the floor brush motor body controlled by the motor drive module 205, the number of operable modes of the roller brush assembly 202 is increased.

[0094] In possible implementations, refer to Figure 14 The roller brush assembly 202 is used to contact and agitate the surface to be cleaned. The roller brush head of the roller brush assembly 202 can be located on the side of the suction head 200 facing the surface to be cleaned. In some embodiments, the roller brush head rotates around the axis of rotation under the drive of the DC floor brush motor 201. The roller brush assembly 202 is located within the airflow range and can be located in the air duct 214 fluidly connected to the vacuum source 110, or it can be located outside the air duct 214, preferably at the end of the air duct 214 opposite to the fluid channel 120.

[0095] Furthermore, the air duct 214 and / or fluid channel 120 may be at least partially corrugated, thereby making the channel structure flexible and allowing the channel to adapt to different working environments (e.g., surfaces such as sofas). For example, the material of the air duct 214 and / or fluid channel 120 may be plastic or metal. (See reference...) Figure 3 The vacuum source 110 includes a vacuum motor 111, which is connected to an AC power plug 130 for connection to AC power (e.g., mains power). The vacuum source 110 may also include a collection device 112 for collecting dust and other substances. When the vacuum motor 111 operates, it generates airflow within the fluid channel 120. Dust and other substances are drawn into the air duct 214 and the fluid channel 120 by the self-suction head 200 and collected in the collection device 112.

[0096] In a possible implementation, the control device 203 is the main control module of the suction head 200, and is the core of the control logic. It is used to control the operation of each module of the suction head 200. Specifically, it controls the operation, sleep, or shutdown of the suction head 200 based on the status signal reflecting the change in fluid suction force within the air duct 214 collected by the operation status detection device 207. Exemplarily, the control device 203 may include one or more control chips and control circuits. Exemplarily, the control device 203 can connect the circuit between the power module 204 and the DC floor brush motor 201 so that the power module 204 supplies power to the DC floor brush motor 201. It is understood that the control device 203 may also take other forms, which are not limited in this application.

[0097] In a possible implementation, the operating status detection device 207 is disposed within the air duct 214, and can switch the status signal to an on signal when the fluid suction force within the air duct 214 is higher than a preset suction force, and can switch the status signal to an off signal when the fluid suction force within the air duct 214 is lower than the preset suction force. For example, an on signal can be represented by 1, and an off signal by 0. The start signal at least indicates that the air duct 214 of the suction head 200 is connected to the fluid channel 120 of the vacuum body 100, forming a connected channel, and that the vacuum motor 111 of the vacuum body 100 is turned on and running, forming fluid suction force within the air duct 214, thereby enabling the control device 203 to determine that the floor brush device is currently in a condition where it can be turned on and run at any time.

[0098] In some embodiments, fluid suction exists within the air duct 214 when the fluid suction force is higher than the preset suction force indicator, and no fluid suction exists within the air duct 214 when the fluid suction force is lower than the preset suction force indicator. The presence of fluid suction means that the vacuum source 110 is turned on and in a state that can provide suction to the air duct 214 to form an airflow. Accordingly, the turn-on signal indicates that the air duct 214 of the suction head 200 is connected to the fluid channel 120 of the vacuum body 100 and forms a connected channel, and the vacuum motor 111 of the vacuum body 100 is turned on and running. The turn-off signal can indicate that the vacuum motor 111 is turned off, the air duct 214 is disconnected from the fluid channel 120, and other conditions where the vacuum source 110 is lost.

[0099] Preferably, the preset suction force is the lower limit of the fluid suction force in the air duct 214 when the air duct 214 is connected to the vacuum source 110 of the vacuum body 100 and the vacuum source 110 is in operation. This lower limit represents the suction force that can be formed in the air duct 214 when the bottom surface of the suction head 200 is not in contact with any surface, the air duct 214 is connected to the vacuum source 110 and the vacuum source 110 is on. This allows the control device 203 to detect the signal of the vacuum source 110 being in operation or off in a timely manner, thereby achieving efficient control and state switching of the floor brush device and other modules in the suction head 200.

[0100] In other embodiments, the preset suction force is the lower limit of the suction force required within the air duct 214 when fluid suction exists within the air duct 214 and the bottom surface of the suction head 200 is in contact with the surface to be cleaned. Understandably, contact between the bottom surface of the suction head 200 and the surface to be cleaned will at least partially close the port of the fluid channel 120, thereby increasing the vacuum level within the fluid channel 120 and correspondingly increasing the fluid suction force. When the vacuum source 110 is operating normally, the suction force in this state can provide sufficient cleaning and adsorption power, thus meeting the suction cleaning conditions. Combined with the rotation of the roller brush, this achieves efficient cleaning of the surface to be cleaned. When the fluid suction force within the air duct 214 is greater than or equal to the preset suction force, it indicates that the bottom surface of the suction head 200 is in contact with the surface to be cleaned. Correspondingly, the "on" signal indicates that the air duct 214 is connected to the vacuum source 110, the vacuum source 110 is on, and the bottom surface of the suction head 200 is in contact with the surface to be cleaned. The bottom surface of the suction head 200 is in contact with the surface to be cleaned, and the fluid suction in the fluid channel 120 reaches the suction cleaning condition. That is, the suction head 200 meets the working conditions, and the floor brush device meets the operating conditions. The "off" signal indicates that the fluid suction in the air duct 214 does not reach sufficient cleaning suction. This corresponds to the current operating condition being that the bottom surface of the suction head 200 is detached from the surface to be cleaned, the vacuum source 110 is off, or the air duct 214 is not connected to the vacuum source 110, which does not meet the operating conditions of the floor brush device.

[0101] In related technologies, the vacuum cleaner body 100 may not be equipped with a brush head 200 with a roller brush, or it may be equipped with a basic brush head 20010 that includes a conventional floor brush and suction port structure. For example... Figure 5 The upright vacuum cleaner shown has a standard nozzle 20010 at the bottom, and a regular floor brush for supporting the main body, which is not detachably connected to it. Clearly, this type of floor brush is unsuitable for cleaning specific areas such as sofas. For example... Figure 6 The fluid channel 120 of the canister vacuum cleaner shown has a basic suction head 20010 at one end, which is a suction port structure. This suction port structure lacks special cleaning capabilities; for example, it may become blocked on surfaces like carpets, limiting its cleaning to smooth surfaces like floors, or it may lack the ability to clean crevices. The suction head 200 provided in this application can be used as an accessory to the existing vacuum cleaner body 100. It can be detachably connected to the vacuum cleaner body and used interchangeably with a conventional floor brush (e.g., ...). Figure 5 It can also be used interchangeably with the suction port structure (such as...). Figure 6 When the suction head 200 provided in this application is used to replace the original suction head 20010 of the vacuum cleaner, the end of the air duct 214 that connects to the suction head 200 can be sealed. During the replacement process, the vacuum degree of the fluid channel 120 is only partially changed, thereby ensuring the vacuum degree of the suction head 200 during operation.

[0102] In summary, the suction head 200 of this application includes an independent power module 204 and a control device 203, and is equipped with an operating status detection device 207. The power module 204 enables DC power supply to electrical components such as the floor brush device, eliminating the need for AC / DC conversion through the vacuum body or the suction head 200 itself. This avoids the need to lay out complex components, circuits, and corresponding wiring on the vacuum body, thus reducing costs. At the same time, the operating status detection device 207 switches its status signal based on changes in fluid suction within the air duct 214, thereby enabling the control device 203 to control the operation or shutdown of the floor brush device based on the monitored status signal. This achieves real-time status monitoring and independent operation control on the suction head 200 side, reducing dependence on the control of the vacuum body, thereby reducing control difficulty and logical computation complexity. Furthermore, the suction head 200 has an independent power supply, control device 203 and corresponding automatic detection and control capabilities. It can be detachably connected to the vacuum cleaner body 100, adapt to different vacuum cleaner bodies, realize the product's versatility, realize the roller brush cleaning configuration of AC vacuum cleaner equipment, ensure strong suction and cleaning effect, and improve the usability of vacuum cleaner equipment.

[0103] In possible implementations, refer to Figure 7 and Figure 8 The operating status detection device 207 includes a blocking member 2071 disposed in the air duct 214 and a trigger switch 2072 disposed on the side wall 215 of the air duct. One end of the blocking member 2071 is connected to the side wall 215 of the air duct, and the other end is a free end 2071a. The blocking member 2071 can at least partially block the air duct 214. The free end 2071a of the blocking member 2071 can move to the side wall 215 of the air duct and trigger the trigger switch 2072 when the fluid suction in the air duct 214 is higher than a preset suction, so that the state signal of the trigger switch 2072 switches to an open signal. The free end 2071a of the blocking member 2071 can detach from the side wall 215 of the air duct when the fluid suction in the air duct 214 is lower than a preset suction, so that the state signal of the trigger switch 2072 switches to a closed signal. Thus, by combining the mechanical blocking component 2071 and the trigger switch 2072, the fluid suction change in the air duct 214 is sensitively detected and the switch information of the vacuum source 110 is fed back to the control device 203 in real time, so that the control device 203 can automatically control the nozzle 200 without relying on control information after connecting to the AC vacuum cleaner.

[0104] In some embodiments, one end of the blocking member 2071 can be fixed to the side wall 215 of the air duct. For example, the specific fixing method can be fastening with a fastener or snap-fitting, etc. The free end 2071a of the blocking member 2071 is free and unrestrained, so that it can move within the air duct 214. The trigger switch 2072 is disposed inside or outside the side wall 215 of the air duct and is close to the side wall 215 of the air duct.

[0105] In some embodiments, the blocking member 2071 can block the air duct 214. For example, the outer edge of the blocking member 2071 can be close to the sidewalls 215 of the air duct in each direction, or there can be a gap between the outer edge of the blocking member 2071 and the sidewall 215 of the air duct to partially block the air duct 214. It can be understood that when there is no suction in the air duct 214 or the preset suction is not reached, the blocking member 2071 is in an upright state due to its own shape limitation, basically blocking the air duct 214. When the air duct 214 generates suction due to the action of the vacuum source 110 and reaches the preset suction, the pressure on the left and right sides of the blocking member 2071 is uneven. The blocking member 2071 moves towards the negative pressure area under the suction, and then its free end 2071a comes into contact with the sidewall 215 of the air duct. When the suction is lower than the preset suction, the blocking member 2071 is pulled away from the sidewall 215 of the air duct due to the force to return to its original position. For example, the blocking member 2071 can be a baffle, or a structure that can be drawn to the side wall 215 of the air duct when a preset suction force is reached, and trigger the trigger switch 2072.

[0106] To enable the free end 2071a of the blocking member 2071 to move within the air duct 214, in some embodiments, reference is made to... Figure 8 One end of the blocking member 2071 is rotatably connected to the side wall 215 of the air duct. When the suction force is sufficient, the free end 2071a can drive the rotatable connection of the blocking member 2071 to overcome the resistance force and rotate. When the suction force is insufficient, the free end 2071a rotates to return to its original position under the action of the resistance force.

[0107] In other embodiments, the blocking member 2071 is a flexible baffle. A thin section is provided at the end of the blocking member 2071 connected to the sidewall 215 of the air duct, allowing the blocking member 2071 to rotate around this thin section as an axis. Understandably, the flexible baffle can deform under stress, and the thin section is more easily deformed than other locations, thus becoming the axis of rotation. Meanwhile, the shape of other locations on the blocking member 2071 remains largely unchanged, enabling the triggering of the trigger switch 2072 on the sidewall 215 of the air duct. After the suction force decreases or disappears, the flexible baffle rotates back to its original position under its own deformation restoring force. Thus, a flexible baffle with a simple thin section achieves sensitive suction response, resulting in a simple structure and low cost. Preferably, the thickness of the thin section can be controlled based on the preset suction force to meet the requirement of triggering the switch when the preset suction force is reached.

[0108] In a specific embodiment, refer to Figure 7 and Figure 8The blocking member 2071 has a groove 2071b on the side opposite to the bottom surface of the suction head 200, and the bottom of the groove 2071b forms a thin area. The groove 2071b is positioned towards the fluid channel 120 of the AC vacuum cleaner, making it easier for the flexible baffle to rotate around the notch as an axis, and making it easier to maintain the shape of other areas, thereby improving the suction sensitivity of the baffle. Preferably, the groove 2071b can penetrate the flexible baffle and form a rotation axis.

[0109] In some implementations, reference is made to Figure 7 and Figure 8 The sidewall 215 of the air duct is provided with a receiving cavity 216, which can accommodate the blocking member 2071 that moves to the sidewall 215 of the air duct. The blocking member will rotate into the receiving cavity recessed in the inner wall of the air duct 214, reducing airflow disturbance in the air duct 214. Preferably, at least one side of the blocking member 2071 facing the bottom surface of the suction head 200 is a smooth surface, which can ensure that the inner surface of the fluid channel 120 is smooth, thereby ensuring that the airflow can pass smoothly.

[0110] In the preferred embodiment, reference Figure 7 and Figure 8 The bottom of the accommodating cavity 216 is provided with a limiting section 2161 and a gap section 2162 along the direction of fluid suction. When the blocking member 2071 is housed in the accommodating cavity 216, the limiting section 2161 abuts against the blocking member 2071, and the gap section 2162 is spaced apart from the blocking member 2071. The limiting section is located near the bottom surface of the suction head 200, and the gap section 2162 is located near the first connection end of the air duct 214. The gap section 2162 is spaced apart from the rotating blocking member 2071, which provides more space for the movement of the blocking member 2071 so that the free end 2071a of the blocking member 2071 can better abut against the limiting section 2161.

[0111] In possible implementations, refer to Figure 7 and Figure 8 A magnetic element 2073 is provided at the free end 2071a of the blocking member 2071. The trigger switch 2072 can be triggered by the magnetic element 2073 when the free end 2071a moves to the side wall 215 of the air duct. For example, the trigger switch 2072 can be a Hall switch. The sensitivity of the switch is improved by triggering the switch with the magnetic element 2073. Specifically, the magnetic element 2073 can be integrally formed on the free end 2071a of the blocking member 2071, or it can be fixed to the free end 2071a by means of adhesive or other methods. When the blocking member 2071 rotates into the receiving cavity 216 due to suction, the magnetic element 2073 interacts with the Hall switch, activating the Hall switch and generating an open signal; after detachment, the Hall switch closes due to the loss of magnetic signal, switching to a non-triggered state and generating an close signal.

[0112] In a possible implementation, the suction head 200 further includes an illumination device 211 electrically connected to the power module 204, disposed at the end of the suction head 200 near the surface to be cleaned, for illuminating the surface to be cleaned so that the user can view the dirt condition of the surface. The illumination device 211 is communicatively connected to the control device 203 and can provide illumination while the DC floor brush motor 201 is running. For example, the illumination device 211 may include multiple lamps 2111, which may be disposed on the surface of the suction head 200. The power module 204 can supply power to the lamps 2111 while simultaneously supplying power to the DC floor brush motor 201.

[0113] In possible implementations, refer to Figure 2 , Figure 4 and Figure 13 The suction head 200 also includes a switch control unit 209, which is used to control the opening and closing of the suction head 200. In the open state, the power module 204 supplies power to the operating status detection device 207, the DC floor brush motor 201 and the control device 203, etc. In the closed state, the vacuum power supply disconnects at least the power supply to the DC floor brush motor 201.

[0114] In some implementations, the switch control 209 may be exposed on the outer surface of the suction head 200. For example, it may be a physical button on the housing, a virtual button displayed on the screen, or the switch control 209 may be a voice-activated virtual button for user triggering. It can be turned on and off by pressing, clicking, or voice commands.

[0115] In other embodiments, the switch control element 209 can be disposed at the first connection end of the suction head 200, and the switch control element 209 is triggered by the connection state between the first connection end and the second connection end of the vacuum body 100. That is, the switch control element 209 can be disposed at the end of the air duct 214 near the fluid channel 120, and can contact and trigger the switch control element 209 when the first connection end is connected to the second connection end, so that the suction head 200 automatically switches to the on state after being connected to the vacuum body 100. In some embodiments, when the first connection end and the second connection end are disengaged, the switch control element 209 can automatically reset to the untriggered state, thereby causing the suction head 200 to switch to the off state. For example, the switch control element 209 is disposed on the surface of the first connection end for contacting the second connection end, and is pressed into the triggered state when the first connection end and the second connection end are connected.

[0116] Accordingly, the suction head 200 also includes a switch detection module 208, which can be integrated into the switch control component 209 or set separately, or it can be integrated into the control device 203. The switch detection module 208 connects the switch control component 209 and the control device 203, and is used to detect the status of the switch control component 209 and transmit the switch status information to the control device 203. The switch status information is used to indicate whether the switch control component 209 has been triggered.

[0117] For example, the switch control element 209 includes a push-button switch or a slide switch. Understandably, when the switch control element 209 is a push-button switch, the user triggers the operation by pressing up or down; when the switch control element 209 is a slide switch, the user triggers the operation by sliding forward, backward, or left or right. Further, the push-button switch may include a self-locking switch or a tactile switch. In one example, after the user presses the self-locking switch, the spring of the self-locking switch locks, keeping the switch detection module 208 in a conductive state. When the user presses the self-locking switch again, the spring unlocks, and the circuit of the switch detection module 208 is disconnected. In another example, to reduce user operation, a tactile switch can be used. In this case, after the user presses the tactile switch and releases it, the circuit of the switch detection module 208 is briefly triggered, the control circuit of the control device 203 receives a signal, and the suction head 200 switches to the on state. When the user touches the switch again, the control circuit of the control device 203 receives a signal, and the suction head 200 switches to the off state.

[0118] Accordingly, the control device 203 is configured to: in response to the triggering of the switch control element 209, control the operation of the operation status detection device 207 to activate the operation status detection device 207 again when the suction head 200 is in the open state, and then execute the step of the operation status detection device 207 switching the state signal in response to the change in fluid suction in the air duct 214. Understandably, after the switch control element 209 switches to the non-triggering state again, the DC floor brush motor 201 and the operation status detection device 207 and other modules stop working, and the suction head 200 switches to the off state to avoid unnecessary power consumption.

[0119] Specifically, taking the switch control element 209, including a push-button switch, as an example, when the switch control element 209 is pressed, it indicates that the switch is triggered. The switch detection module 208 sends the switch trigger information to the control device 203, and the control module controls the operation status detection device 207 to start. The control device 203 can also control the power indicator module 206 to display the power status of the power module 204. At the same time, when the switch control element 209 rebounds, it indicates that the switch is off. The switch detection module 208 sends the switch off information to the control device 203, and the control device 203 controls the power module 204 to at least stop supplying power to the floor brush device. It can also simultaneously control the operation status detection device 207, the power indicator module 206, and the lighting device 211 to stop working. By setting the switch control element 209 and the switch detection module 208, the on and off states of the suction head 200 and the start and stop of the DC floor brush motor 201 can be flexibly controlled, saving power.

[0120] In a possible implementation, the suction head 200 may not have a switch control component 209. Correspondingly, there is no need to set up a switch detection module 208. The battery pack of the power module 204 is detachably installed on the main body of the suction head 200. When the battery pack is inserted into the main body of the suction head 200, it triggers the on state and supplies power to modules such as the DC floor brush motor 201, the operation status detection device 207, and the control device 203. The control device 203 can control the operation and stop of the DC floor brush motor 201 based on the status signal. When the process ends, such as when the main body of the vacuum cleaner 100 is closed, the vacuum source 110 is closed, the suction head 200 is detached from the main body of the vacuum cleaner 100, the power is insufficient, the vacuum source suction is insufficient, or the suction head 200 is detached from the surface to be cleaned for more than a second preset time, the DC floor brush motor 201 is controlled to stop running. The operation status detection device 207 can maintain the operation state. Its power consumption is low. By removing the battery pack, the suction head 200 can be switched to the completely off state and power consumption is stopped.

[0121] In a possible implementation, the suction head 200 further includes a power indicator module 206, which indicates the power status of the power module 204. The power indicator module 206 is communicatively connected to the control device 203. The power indicator module 206 may include a power indicator light or a power indicator displayed on a screen. The power indicator may be a numerical value or an image of the current power level.

[0122] In a possible implementation, if the switch control element 209 is not provided, the power indicator module 206 can be controlled to operate in response to the open state of the suction head 200; if the switch control element 209 is provided, the power indicator module 206 can be controlled to operate in response to the triggering of the switch control element 209.

[0123] Accordingly, the control device 203 is configured to: monitor the power information of the power module 204; control the power indicator module 206 to display the power status of the power module 204 based on the power information; if the power information indicates that the power of the power module 204 is lower than a preset power level, the power indicator module 206 displays a power alarm status. For example, the preset power level can be 10% of the total power of the power module 204. Thus, by displaying the current power level of the power module 204 through the power indicator module 206, the use of the suction head 200 is facilitated, and an alarm is triggered when the power of the power module 204 is too low, notifying the user to charge it in time. For example, if the power information indicates that the power module 204 is higher than the preset power level, the displayed power status represents the current remaining power of the power module 204, such as indicating the power level through a colored light, or displaying the remaining power percentage or remaining power level through a power indicator on the display screen, and performing the operation of acquiring a status signal. For example, the display screen can also display information such as the operating level, dust concentration, and working mode (e.g., soft mode status) of the suction head 200.

[0124] In one example, the power indicator module 206 may include a comparator. One input of the comparator is connected to a reference voltage corresponding to a preset power level, and the other input is connected to the control device 203 to obtain the power voltage corresponding to the current power level of the power module 204. After comparing the reference voltage and the power voltage, the comparator output can output a corresponding electrical signal. In another example, the power indicator module 206 may include a chip that uses a built-in calculator to compare the current power level with a preset power level and output the comparison result. For example, if the current power level of the power module 204 is less than the preset power level, the power indicator module 206 may issue a power alarm signal through one or more of the following methods: flashing, vibration, or humming.

[0125] In a possible implementation, the control device 203 is configured to stop the floor brush device from operating if the power information indicates that the power module 204's power level is lower than a preset level. Alternatively, it can also control the suction head 200 to shut down, thereby turning off other power-consuming devices, such as the lighting device 211 or the ground clearance sensor. This avoids motor power loss due to battery depletion, protecting battery and motor performance.

[0126] Based on some or all of the above embodiments, the preset suction force is the lower limit of the suction force required to be achieved in the air duct 214 when there is fluid suction force in the air duct 214 and the bottom surface of the suction head 200 is in contact with the surface to be cleaned.

[0127] Accordingly, in some implementations, the floor brush device is configured to operate upon an activation signal.

[0128] Accordingly, in some embodiments, the floor brush device is configured to turn off according to the off signal.

[0129] Specifically, when the status signal of the operation status detection device 207 is an "on" signal, the power module 204 supplies power to the floor brush device and switches the floor brush device to the "on" state; when the status signal of the operation status detection device 207 is a "off" signal, the power module 204 cuts off the power supply to the floor brush device and / or stops the floor brush device from operating, thus turning off the floor brush device. In this way, by using the operation status detection device as the switch for the floor brush device, the floor brush device can directly respond based on changes in suction within the air duct, reducing response delay.

[0130] Accordingly, in other embodiments, the floor brush device is configured to operate after the duration of the activation signal reaches a first preset duration. Specifically, a current delay component such as a capacitor or inductor can be provided in the circuit between the state detection device and the floor brush device, so that after the state signal of the state detection device 207 switches to the activation signal, the conduction is delayed for a certain period of time, so that the floor brush device is powered on and operates only when the duration of the activation signal reaches the first preset duration.

[0131] Accordingly, in other embodiments, the floor brush device is configured to turn off after the duration of the off signal reaches a second preset duration. Specifically, a current delay component such as a capacitor or inductor can be provided in the circuit between the state detection device and the floor brush device, so that after the state signal of the state detection device 207 switches to the off signal, the power is delayed for a certain period of time, so that the floor brush device is powered off and turned off only when the duration of the on signal reaches the second preset duration.

[0132] Understandably, the status detection device 207 can also be communicatively connected to the control device 203, which is configured to monitor the status signals of the operating status detection device 207.

[0133] Accordingly, in some embodiments, the control device 203 is configured to control the operation of the floor brush device in response to an activation signal, that is, the activation signal indicates that the suction head 200 meets the working conditions of being connected to the vacuum source 110 and having its bottom surface in contact with the surface to be cleaned, and controls the power supply module 204 to supply power to the DC floor brush motor and run it, so as to drive the roller brush assembly to rotate.

[0134] Accordingly, in some embodiments, the control device 203 is configured to control the floor brush device to shut down in response to a shutdown signal, thereby stopping the DC floor brush motor 201 when the vacuum source 110 is not in operation, is not connected to the vacuum source 110, the vacuum source suction power is insufficient, or the bottom surface of the brush head 200 is off the ground, etc., when the brush head 200 does not meet the working conditions. In this way, the floor brush is automatically stopped by combining the status signal from the operating status detection device 207, avoiding power loss and noise interference under non-operating conditions. It is understood that the floor brush device stops operating when the brush head 200 is detached from the vacuum body 100, the vacuum body 100 is closed, the vacuum source 110 is closed, the bottom surface of the brush head 200 is detached from the surface to be cleaned, or the suction power is too low, indicating that the brush head 200 is in a state of loss of airflow power or insufficient power, etc., which do not meet the working conditions. The single-condition input of the status signal can cover the multi-state detection of the floor brush operation and shutdown, making the control logic simple and efficient.

[0135] Accordingly, in some other embodiments, the control device 203 is also configured to control the operation of the floor brush device in response to the duration of the activation signal reaching a first preset duration. That is, when the activation signal is received and its duration reaches the first preset duration, it is determined that the suction head 200 meets the working conditions. If the fluid suction force in the air duct 214 reaches a preset suction force or above and continues for the first preset duration, it indicates that the vacuum motor 111 in the vacuum body 100 attached to the suction head 200 is started, the bottom surface of the suction head 200 is in contact with the surface to be cleaned, and the working condition is stable. Accordingly, the DC floor brush motor 201 can be started, and the lighting device 211 can also be started. For example, the first preset duration T1 can be 1s-5s, such as 2s. By setting the preset suction force and the first preset duration to determine the working conditions met by the current suction state, the automatic start control of the floor brush device is realized, improving the cleaning effect while avoiding the waste of power and noise caused by the floor brush motor being started by mistake.

[0136] Accordingly, in a possible implementation, the control device 203 is configured to control the suction head 200 to shut down in response to the duration of a shutdown signal reaching a second preset duration. Upon receiving the shutdown signal, if it is determined that there is no vacuum source suction, or if there is vacuum source suction but the suction head 200 meets the shutdown conditions (i.e., when the vacuum level drops below a preset vacuum level A and the duration exceeds the second preset duration T2), the cleaning operation is considered to have stopped, and the suction head 200 is controlled to enter the shutdown state. The DC floor brush motor 201 and the lighting device 211 are turned off, the power indicator module 206 can also be turned off, and if a switch control element 209 is provided, the operating status detection device 207 can also be turned off. In this way, the user only needs to turn off the switch of the vacuum body, unplug the suction head 200, or hold the device away from the surface to be cleaned for a certain period of time, and the suction head 200 will automatically stop working, preventing power loss caused by the user forgetting to turn off the suction head 200 switch.

[0137] Understandably, when the vacuum source 110 is turned on and connected to the air duct 214, there may be a situation where the bottom surface of the suction head 200 is temporarily detached from the surface to be cleaned, such as when the user briefly lifts the device away from the surface to be cleaned to change its position. This will cause the fluid suction in the fluid channel 120 to drop temporarily below the preset suction. Accordingly, the control device 203 is configured to: determine that there is fluid suction and the suction head 200 meets the sleep condition if the duration of the shutdown signal does not exceed the second preset duration. That is, when the fluid suction drops below the preset suction and the duration is shorter than the second preset duration T2, control the suction head 200 to enter the sleep state, the DC floor brush motor 201 is turned off, and the lighting device 211 can also be turned off. At least control the operation status detection device 207 to keep running so as to monitor the suction status of the fluid channel 120 in real time, so as to achieve efficient switching from the sleep state to the roller brush operation state, reduce the roller brush rotation noise and power loss, reduce the number of times the user triggers the switch, and improve the operating experience. In sleep mode, the power indicator module 206 can also be kept running to avoid missed power warnings. The second preset duration is longer than the first preset duration; for example, T2 can be 50 s - 70 s, such as 60 s.

[0138] The operating status detection device 207 monitors the suction power of the suction head 200 and air duct 214 in real time, thereby quickly obtaining the working status of the equipment and controlling the start or stop of the DC floor brush motor 201 and other modules to increase the flexibility of the vacuum cleaner and save power.

[0139] Based on some or all of the above embodiments, the preset suction force is the lower limit of the fluid suction force in the air duct 214 when the air duct 214 is connected to the vacuum source 110 of the vacuum body 100 and the vacuum source 110 is in operation. The open signal indicates that the air duct 214 is connected to the vacuum source 110 and the vacuum source 110 is open. The close signal indicates that there is no fluid suction force in the air duct 214, such as when it is disconnected from the vacuum source 110 or the vacuum source 110 is closed.

[0140] Accordingly, the suction head 200 also includes a ground-lift sensor 217, which is used to activate the floor brush device when the bottom surface of the suction head 200 is in contact with the surface to be cleaned, and to deactivate the floor brush device when the bottom surface of the suction head 200 is removed from the surface to be cleaned. The ground-lift sensor 217 can sense whether the bottom surface of the suction head 200 has lifted off the ground, and combine it with the status signal of the operation status detection device 207 to determine whether the suction head 200 needs to perform a cleaning operation, thereby improving the sensitivity of the vacuum source 110 and the accuracy of the bottom surface lifting detection.

[0141] In a possible implementation, when the switch control element 209 is present, the control device 203 is configured to control the ground sensor 217 to operate in response to the triggering of the switch control element 209. In the non-triggered state of the switch control element 209, all electronic components of the suction head 200 are turned off. When the switch control element 209 is not provided, the ground sensor 217 can be controlled to operate in response to the open state of the suction head 200 (such as when the battery pack is inserted). Regardless of whether the switch control element 209 is provided, the ground sensor 217 is controlled to operate continuously in the standby state of the suction head 200.

[0142] In some embodiments, the ground-sensing device 217 includes a distance sensor for detecting the distance between the bottom surface of the suction head 200 and the surface to be cleaned, generating a first distance signal when the bottom surface of the distance-indicating suction head 200 contacts the surface to be cleaned, generating a second distance signal when the bottom surface of the distance-indicating suction head 200 leaves the surface to be cleaned, and feeding back the first distance signal and the second distance signal to the control device 203.

[0143] Understandably, the distance sensor can be any sensing device with distance measurement function, preferably disposed on the bottom surface of the suction head 200. For example, the distance sensor can be an infrared distance sensor, which senses the distance between the bottom surface of the suction head 200 and the surface to be cleaned using infrared light. When the bottom surface detaches from the surface to be cleaned, the current distance detected by the infrared distance sensor is higher than a preset distance indicating contact between the bottom surface and the surface to be cleaned. Accordingly, a second distance signal is generated and fed back. If the detected current distance is less than or equal to the preset distance, it indicates that the bottom surface is in contact with the surface to be cleaned, and a first distance signal is generated and fed back.

[0144] Accordingly, in one embodiment, the control device 203 is configured to control the operation of the floor brush device in response to an activation signal and a first distance signal. Understandably, the activation signal indicates the presence of fluid suction within the air duct 214, meaning that the air duct 214 is connected to the vacuum source 110 and the vacuum source 110 is in operation. The first distance signal indicates that the bottom surface of the suction head 200 is in contact with the surface to be cleaned, thus satisfying the operating conditions of the floor brush device, thereby controlling the DC floor brush motor to operate and drive the roller brush assembly 202 to rotate.

[0145] In another embodiment, the control device 203 is configured to control the floor brush device to operate in response to the duration of the activation signal and the first distance signal reaching a first preset duration. That is, the floor brush device is activated only after it is determined that the air duct 214 is connected to the vacuum source 110 and the vacuum source 110 is activated, and the contact time between the bottom surface of the suction head 200 and the surface to be cleaned reaches the first preset duration. If the duration of the first distance signal does not reach the first preset duration, the floor brush device is kept in a closed state to avoid accidental activation of the floor brush and noise interference.

[0146] In one embodiment, the control device 203 is configured to control the floor brush device to shut down in response to either a shutdown signal or a second distance signal. That is, if the working conditions are not met, such as the air duct 214 is not connected to the vacuum source 110, or the vacuum source 110 is not started, or the bottom surface of the suction head 200 is not in contact with the surface to be cleaned, the floor brush device is shut down. This achieves automatic stopping of the floor brush in scenarios such as the vacuum source 110 being turned off or the brush being moved off the ground, saving energy, reducing noise, and improving the user experience.

[0147] In one embodiment, the control device 203 is configured to control the suction head 200 to shut down in response to the duration of a shutdown signal or a second distance signal reaching a second preset duration. Understandably, the shutdown signal indicates the absence of fluid suction within the air duct 214, which may be due to the vacuum source 110 not being connected or the vacuum source 110 being in a closed state. The duration of the second distance signal reaching the second preset duration indicates that the bottom surface of the suction head 200 has been detached from the surface to be cleaned for the second preset duration, thus meeting the shutdown conditions. This allows the suction head 200 to be shut down entirely to prevent power consumption caused by the user forgetting to turn it off. Understandably, shutting down the vacuum cleaner head 200 here means turning off at least all electronic devices except for the operation status detection device 207, control device 203, and ground clearance detection device. In some cases, shutting down the vacuum cleaner head 200 here means turning off at least all electronic devices except for the operation status detection device 207 and control device 203. When the status signal of the operation status detection device 207 switches back to the on signal, the ground clearance sensor 217 can be controlled to operate again to realize the ground clearance detection of the vacuum cleaner head 200, and then execute the operation control of devices such as the floor brush device.

[0148] In one embodiment, the control device 203 is configured to control the suction head 200 to enter a sleep state in response to an activation signal and the duration of the second distance signal not reaching a second preset duration, or in response to an activation signal and the duration of the second distance signal not reaching a second preset duration. This sleep state includes controlling the floor brush device and the lighting device 211 to stop operating, and includes controlling at least the operating status monitoring module and the ground clearance sensor 217 to continue operating, and may also include controlling the power indicator module 206 to continue operating.

[0149] In other embodiments, the ground-lift sensing device 217 includes a ground-contact transmission mechanism and a microswitch, with the microswitch positioned between the power module 204 and the floor brush assembly. The ground-contact transmission mechanism can trigger the microswitch when the bottom surface of the suction head 200 contacts the surface to be cleaned, allowing the power module 204 to supply power to the floor brush assembly, and can stop triggering the microswitch when the bottom surface of the suction head 200 detaches from the surface to be cleaned, thus cutting off power supply between the power module 204 and the floor brush assembly. In this way, by sensing whether the bottom surface of the suction head 200 is off the ground through the mechanical transmission relationship between the transmission mechanism and the microswitch, the microswitch is triggered and deactivated, resulting in accurate ground-lift detection at a low cost.

[0150] In a specific implementation, when the bottom surface of the suction head 200 contacts the surface to be cleaned, the ground contact transmission mechanism is pressed by the resistance force of the surface to be cleaned and the gravity of the suction head 200, and the pressure is transmitted to the micro switch to close it, so as to realize power supply; when the bottom surface of the suction head 200 is separated from the surface to be cleaned, the resistance force of the surface to be cleaned disappears, the ground contact transmission mechanism no longer presses the micro switch, so that it does not close, thus cutting off the power supply.

[0151] In one embodiment, the ground-contact transmission mechanism includes a roller and a transmission component connected to the roller. The micro switch includes a micro switch body and a trigger component. The roller is used to contact the surface to be cleaned and applies pressure to the trigger component through the transmission component, so that the trigger component closes with the micro switch body and reaches the triggered state. Specifically, when the bottom surface of the suction head 200 is in contact with the surface to be cleaned, the roller can roll with the movement of the suction head 200 and drive the transmission component to move and press the trigger component, so that it is pressed into the micro switch body and closed, thus opening the micro switch. After the bottom surface of the suction head 200 leaves the cleaning surface, the transmission component disengages from the trigger component, causing the trigger component to leave the micro switch body, thus opening the micro switch.

[0152] Accordingly, in one embodiment, the floor brush device operates when the control device 203 receives an activation signal and the micro switch is in a triggered state.

[0153] In one embodiment, the floor brush device is turned off if the control device 203 receives either a shutdown signal or the micro switch is in a non-triggered state.

[0154] In one embodiment, if the control device 203 receives a shutdown signal or the micro switch remains in a non-triggered state for a duration of a second preset duration, the suction head 200 is controlled to shut down.

[0155] In one embodiment, if the duration during which the control device 203 receives the activation signal and the micro switch remains in a non-triggered state does not reach the second preset duration, the control head 200 enters a sleep state, i.e., a standby state.

[0156] In other embodiments, the ground-based sensing device 217 includes a vacuum detection device disposed within the air duct 214 and electrically connected to the power module 204, for collecting vacuum information indicating the vacuum level within the air duct 214.

[0157] In possible implementations, refer to Figure 13 The vacuum detection device is attached to the air duct 214. In operation, it senses the vacuum level within the air duct 214 and converts this information into a digital signal, which is then transmitted to the control device 203. In some embodiments, the vacuum detection device is positioned on the side of the air duct 214 closest to the fluid channel 120. It monitors the vacuum level within the air duct 214 and sends the detected vacuum information to the control device 203, thereby more accurately monitoring the airflow suction state within the channel and improving the floor brush control efficiency. For example, the vacuum detection device may include a vacuum sensor.

[0158] In one embodiment, the control device 203 is configured to control the operation of the floor brush device in response to an activation signal and when the vacuum information exceeds a preset vacuum level.

[0159] The preset vacuum level refers to the lower limit of the vacuum level required to be achieved within the air duct 214 after the vacuum source 110 is turned on and fluidly connected to the air duct 214, and the bottom surface of the suction head 200 contacts the surface to be cleaned. If an activation signal is received and the vacuum level within the air duct 214 is greater than the preset vacuum level A, it indicates that the vacuum motor 111 within the vacuum body 100 attached to the suction head 200 is activated, the bottom surface of the suction head 200 contacts the surface to be cleaned, and the DC floor brush motor 201 can be activated accordingly, as can the lighting device 211, etc. By setting the status signal and the preset vacuum level to determine the current working conditions of the suction head 200, the automatic activation control of the floor brush motor is achieved, improving the cleaning effect while avoiding power waste and noise impact caused by accidental activation of the floor brush motor. For example, the preset vacuum level A can be 8 kPa-12 kPa, such as 10 kPa.

[0160] In another embodiment, the control device 203 is configured to control the operation of the floor brush device in response to an activation signal and for a duration during which the vacuum information exceeds a preset vacuum level for a first preset duration.

[0161] If an activation signal is received and the vacuum level within the air duct 214 remains greater than the preset vacuum level A for a duration T1, it indicates that the vacuum motor 111 within the vacuum body 100 attached to the suction head 200 is activated. The bottom surface of the suction head 200 is in contact with the surface to be cleaned, and the operating conditions are stable. Consequently, the DC floor brush motor 201 can be activated, as can the lighting device 211, etc. By setting the status signal, preset vacuum level, and first preset duration, the operating conditions currently met by the suction head 200 are determined, achieving automatic activation control of the floor brush motor. This improves the cleaning effect while preventing accidental activation of the floor brush motor, which would lead to wasted power and noise.

[0162] In one embodiment, the control device 203 is configured to control the floor brush device to shut down in response to either a shutdown signal or vacuum information not exceeding a preset vacuum level.

[0163] If a vacuum level is lower than the preset vacuum level when a shutdown signal or vacuum level information is received, it is determined that the suction head 200 does not meet the working conditions. This may be due to the air duct 214 not being connected to the vacuum source 110, the vacuum source 110 being closed, or the bottom surface not being in contact with the surface to be cleaned. The vacuum level in the air duct 214 will decrease to a level lower than the preset vacuum level or the indicated normal pressure. Accordingly, there is no need to perform roller brush cleaning. The DC roller brush is controlled to stop running or remain in the off state. The lighting device 211 can also be turned off to save energy.

[0164] In one embodiment, the control device 203 is configured to control the suction head 200 to shut down in response to a second preset duration for a duration during which a shutdown signal or vacuum information has not exceeded a preset vacuum level.

[0165] In one embodiment, the control device 203 is configured to control the suction head 200 to enter a sleep state in response to an activation signal and if the vacuum level information has not exceeded a preset vacuum level for a duration that has not reached a second preset duration. This allows the vacuum detection device and the operating status detection device 207 to continue operating even when the floor brush device, lighting device 211, etc., are turned off. Preferably, the power indicator module 206 can also be controlled to continue operating to provide timely power level warnings.

[0166] In a possible implementation, the control device 203 is further configured to: determine the operating power and / or motor speed of the floor brush device based on the vacuum level corresponding to the vacuum level information, and control the floor brush device to operate based on the determined operating power and / or motor speed. This control step can be implemented during the process of the control device 203 controlling the operation of the floor brush device. Preferably, the vacuum level is negatively correlated with the motor speed, and / or the vacuum level is negatively correlated with the operating power, so as to reduce the rotation speed of the roller brush assembly when operating on non-smooth surfaces such as carpets, thereby reducing the moving resistance, facilitating operation, avoiding operational risks such as motor stalling, and improving safety and user experience.

[0167] Based on some or all of the above embodiments, in possible embodiments, the suction head 200 may also include a lighting device 211 electrically connected to the power module 204, and the control device 203 is configured to control the lighting device 211 to turn on when the operation of the floor brush device needs to be controlled.

[0168] In a possible implementation, the control device 203 is configured to control the lighting device 211 to turn off when the floor brush device needs to be turned off. That is, the lighting device 211 is set to operate and turn off synchronously with the floor brush device, so as to illuminate the area to be cleaned when cleaning is required, and turn off the lighting when cleaning is not required to save electricity.

[0169] In a possible implementation, if an operating status detection device 207 and a ground-based sensor 217 are provided, the control device is also configured to: control the suction head 200 to shut down in response to the duration of the shutdown signal exceeding a second preset duration.

[0170] In a possible implementation, the suction head 200 may further include a storage module 210 communicatively connected to the control device 203, used to store the operating data of the suction head 200, which can be read and written by the control device 203. For example, the storage module 210 may store information such as the suction head 200's runtime, error messages, previous operation records, or status information of whether the switch control element 209 is triggered. In one example, when the switch control element 209 is on but the power module 204 has insufficient power, the suction head 200 cannot start normally. Afterwards, after replacing the power module 204 or charging it, the control device 203 reads the information from the storage module 210, indicating that the switch control element 209 is in a triggered state. The control device 203 then controls the power module 204 to supply power to the DC floor brush motor 201 and turn on the DC floor brush motor 201. In another example, if the indicator switch control 209 is in the off state, and after replacing the power module 204 or charging the power module 204, the control device 203 reads the information from the storage module 210 and indicates that the indicator switch control 209 is in the off state, then the control device 203 will not control the DC power supply module to supply power to the DC floor brush motor 201. By setting the storage module 210 to store the operating information of the suction head 200, it can store error information in case of emergencies such as power failure of the power module 204, and provide memory information for the next use. Based on the status signal fed back by the operating status detection device and the information from the storage module 210, the control device 203 determines the current required motor power according to the corresponding program logic, and controls the operation of the DC floor brush motor 201 through the motor drive module 205.

[0171] Based on some or all of the above embodiments, in possible implementations, refer to Figure 10 , Figure 12-13 and Figure 15The suction head 200 also includes a grip 212, which is disposed on the outer shell of the suction head 200. The grip 212 facilitates the user's disassembly of the suction head 200. Furthermore, the grip 212 can be positioned relative to the opening of the chamber of the roller brush assembly 202. When the elastic connector 213 is provided in the first connecting section, the grip 212 can be moved or pressed against the suction head 200 by operating it, allowing it to better adapt to the surface to be cleaned. This avoids the problem that the force exerted by the user on the vacuum body 100 cannot be transmitted to the bottom surface of the suction head 200 due to the elastic connector 213.

[0172] In a possible implementation, the grip 212 can be positioned in the middle of the nozzle 200 housing. When the user applies force to the nozzle 200, the chamber opening of the roller brush assembly 202 remains in contact with the surface to be cleaned, thereby maintaining the vacuum level of the nozzle 200. Optionally, the grip 212 extends from the housing away from the roller brush assembly 202, or extends from the housing towards the first connection end, or is arranged in an inverted U-shape on the housing. When using the nozzle 200, the user can easily control the cleaning position of the nozzle 200 by gripping the grip 212. For example, the vacuum cleaner body 100 is typically bulky, and because it is connected to AC power, AC vacuum cleaners cannot be moved too far from the plug, making it inconvenient to move the vacuum cleaner body 100. When cleaning different areas is required, the user can use the grip 212 in conjunction with the long and flexible fluid channel 120 to allow the nozzle 200 to clean a larger area.

[0173] In some embodiments, the power module 204 is located at the end of the air duct 214 away from the floor brush device. That is, the power module 204 and the floor brush device (such as the roller brush assembly 202, DC floor brush motor 201, etc.) are located on both sides of the air duct 214, so that the weight of the suction head is evenly distributed, improving the user experience.

[0174] In some implementations, reference is made to Figure 19 The power module 204 includes a battery pack module, which is located at the end of the air duct 214 away from the floor brush device and at the front of the air duct 214. That is, the battery pack module is located at the end of the air duct 214 closer to the vacuum body 100 and on the side of the air duct 214 away from the surface to be cleaned, so that the vacuum head 200 is closer to the ground when the user operates it, and it also requires less effort.

[0175] Based on some or all of the above embodiments, in some embodiments, the operating status detection device 207 includes a mechanical induction switch, which is configured to be triggered in response to the fluid suction force in the air duct 214 being higher than a preset suction force to generate an opening signal, and to be turned off in response to the fluid suction force in the air duct 214 being lower than a preset suction force to generate a closing signal.

[0176] In one embodiment, the mechanical sensor switch can be exemplified as a pressure switch. When the fluid suction force within the air duct 214 is higher than a preset suction force, the fluid pressure applied to the mechanical sensor switch reaches the switch triggering requirement, thereby triggering the mechanical sensor switch to close, thus enabling the control device to detect an open signal. Conversely, when the fluid suction force within the air duct 214 is lower than the preset suction force, the fluid pressure applied to the mechanical sensor switch no longer meets the switch triggering requirement, the mechanical sensor switch opens, thus enabling the control device to detect a closed signal.

[0177] In some embodiments, the mechanical sensing switch is configured to trigger when the duct vibration state corresponding to the fluid suction of the duct 214 meets a preset vibration state, thereby generating an opening signal, and to close when the duct vibration state corresponding to the fluid suction of the duct 214 does not meet the preset vibration state, thereby generating a closing signal.

[0178] Understandably, when the suction head 200 is connected to the vacuum body 100, after the vacuum motor 111 of the vacuum body 100 is started, the air duct 214 generates fluid suction, and correspondingly, the suction head 200 vibrates, thereby generating air duct vibration. The air duct vibration state is used to indicate the physical motion state of the air duct transmitted to the mechanical sensing switch, including but not limited to vibration force or vibration frequency. The preset vibration state can be calibrated based on the physical motion state of the air duct 214 after the vacuum motor 111 has run, and may include, but is not limited to, preset vibration force or preset vibration frequency. The air duct vibration state satisfying the preset vibration state means that the current air duct 214 meets the vibration state required after the vacuum motor 111 has run. For example, if the vibration force of the air duct 214 reaches at least one of the preset vibration force or the vibration frequency reaches at least one of the preset vibration frequency, it is determined that the air duct vibration state satisfies the preset vibration state, thereby generating an opening signal. If the vibration force of the air duct 214 does not reach at least one of the preset vibration force or the vibration frequency does not reach at least one of the preset vibration frequency, a closing signal is generated.

[0179] In this embodiment, the mechanical sensing switch can be a vibration switch, triggered in response to vibration. In one example, the mechanical sensing switch is a spring-loaded vibration switch, see reference [link / reference] Figure 18The spring-vibration switch includes a switch housing 2074a, a spring wire pin 2074b, a trigger conductive element 2074c, and a vibration spring 2074d. The vibration spring 2074d is connected to the spring wire pin 2074b. The conductive vibration spring 2074d and part of the trigger conductive element 2074c are disposed inside the switch housing 2074a and are bonded and cured to the switch housing 2074a by adhesive. When the preset vibration state is not met, the spring wire pin 2074b and the portion of the trigger conductive element 2074c exposed in the switch housing 2074a do not contact each other. Once the preset vibration state is met, the vibration spring 2074d will vibrate to bring the spring wire pin 2074b into contact with the trigger conductive element 2074c, thereby conducting electricity to trigger closure and generate an open signal.

[0180] Thus, by setting a mechanical induction switch to mechanically respond to the control of the suction head 200 after the vacuum motor 111 is running, the complexity of the control device and the power requirements of the suction head 200 are reduced.

[0181] Based on some or all of the above embodiments, in some embodiments, the suction head 200 further includes at least one auxiliary function device, which includes at least one of a dust detection device, a mite removal device, or a sterilization device; the dust detection device is used to collect dust concentration data in the air duct 214 and feed it back to the control device; the mite removal device is used to emit a mite removal beam or a mite removal agent; and the sterilization device is used to emit a sterilization beam or a sterilization agent.

[0182] In some embodiments, the mechanical sensor switch is triggered when the fluid suction force within the air duct 214 is higher than a preset suction force, i.e., triggered when the fluid pressure corresponding to the fluid suction force is higher than the preset fluid pressure corresponding to the preset suction force. Accordingly, the mechanical sensor switch included in the operating status detection device 207 is triggered when the fluid suction force within the air duct 214 is higher than the preset suction force. The control device 203 responds to at least any one of the following: an open signal, the duration of the open signal reaching a first preset duration, the presence of an open signal and a first distance signal, or the duration of the open signal reaching a first preset duration and the first distance signal reaching a first preset duration, by controlling at least any one of the following: a floor brush device, a lighting device 211, a power indicator module, or each auxiliary function device. Preferably, the control device 203 responds to at least any one of the following: a close signal, a second distance signal, the duration of the close signal reaching a second preset duration, or the duration of the second distance signal reaching a second preset duration, by controlling the floor brush device to close, or by controlling at least any one of the lighting device, the power indicator module, or each auxiliary function device to close. It should be noted that in this embodiment, the implementation of the mechanical sensing switch and the aforementioned trigger switch 2072 is similar, the only difference being the triggering method of the mechanical sensing switch and the trigger switch 2072.

[0183] In other embodiments, the operating status detection device 207 includes a mechanical sensing switch that is triggered based on the vibration state of the air duct meeting a preset vibration state, such as a vibration switch. Correspondingly, the control device 203 controls at least one of the following devices to operate in response to an activation signal, an activation signal lasting for a first preset duration, the presence of an activation signal and a first distance signal, or an activation signal lasting for a first preset duration and the presence of a first distance signal. It should be noted that in this embodiment, the operation of the floor brush device, lighting device 211, and power indicator device can be consistent with the control method of the aforementioned embodiments, and will not be elaborated upon here. The operation of the auxiliary devices can be automatically triggered based on the operating control logic of the floor brush device, or it can operate in response to a user's trigger operation.

[0184] Understandably, when the floor brush device includes components such as the roller brush assembly 202 or the DC floor brush motor 201 that generate interfering vibrations or noise, the mechanical sensing switch triggered based on the air duct vibration state is continuously triggered by the floor brush device. Accordingly, the control device 203 controls the floor brush device to shut down in response to the second distance signal or the duration of the second distance signal reaching a second preset duration. That is, when the ground clearance sensor 217 detects that the bottom surface of the suction head 200 has detached from the surface to be cleaned, the control device stops operating, thereby avoiding interference from the vibration and noise of the floor brush device's operation on the mechanical sensing switch and achieving automatic shutdown of the floor brush device. In practical applications, when the user closes the vacuum body 100, the vacuum motor 111 stops working and there is no fluid flow in the air duct 214. However, because the DC floor brush motor 201 or the roller brush assembly 202 is rotating, it will still generate noise and vibration. The vibration switch is still in the closed state, and the suction head control circuit is in the energized working state. When the user lifts the suction head 200 away from the surface to be cleaned, the ground clearance sensor 217 generates a second distance signal, which controls the DC floor brush motor 201 and the roller brush assembly 202 to stop running.

[0185] Accordingly, in response to at least one of the following: a shutdown signal, a second distance signal, the duration of the shutdown signal reaching a second preset duration, or the duration of the second distance signal reaching a second preset duration, the control device 203 controls at least one of the lighting device 211, the power indicator module, or each auxiliary function device to shut down.

[0186] In some cases, the floor brush device does not include components that generate interfering vibrations or noises. For example, the floor brush device includes a suction structure, or includes a suction structure and a brush head located on the suction structure, but does not include components that can generate interfering vibrations, such as the roller brush assembly 202 and the DC floor brush motor 201. Accordingly, the control device 203 controls the operation of at least one of the following in response to an on signal, the duration of the on signal reaching a first preset duration, the presence of an on signal and a first distance signal, or the duration of the on signal reaching the first preset duration and the first distance signal reaching the first preset duration; preferably, the control device 203 controls the lighting device 211, the power indicator module, or each auxiliary function device to operate in response to at least one of an off signal, a second distance signal, the duration of the off signal reaching a second preset duration, or the duration of the second distance signal reaching the second preset duration. It should be noted that in this embodiment, the operation of the lighting device 211, the power indicator device, and the auxiliary function device can be consistent with the control method of the aforementioned embodiment, and will not be described in detail here.

[0187] Based on some or all of the above embodiments, in some embodiments, reference is made to Figure 20 The power module 204 is configured to supply power to the control device 203 via the trigger power supply circuit 220; the trigger power supply circuit 220 is configured to be turned on in response to the activation signal of the operating status detection device 207. When the vacuum cleaner body 100 is not started, the preset switch 219 is in the open state, which also causes the trigger power supply circuit 220 to be in the open state. Correspondingly, the control device 203 is also in the de-energized state. In response to the closing of the preset switch 219, the trigger power supply circuit 220 is turned on, thereby enabling the power module 204 to supply power to the control device 203.

[0188] In some embodiments, the control device 203 is configured to control the power supply self-locking circuit 221 to turn on in response to the conduction of the trigger power supply circuit 220. The power supply self-locking circuit 221 is used to maintain the conduction state of the trigger power supply circuit 220 when it is in the conducting state. Specifically, the power supply self-locking circuit 221 is located between the power supply control switch 2201 of the trigger power supply circuit 220 and the control device 203. After the trigger power supply circuit 220 turns on in response to the conduction of the preset switch 219, the control device 203 controls the power supply self-locking circuit 221 to turn on, thereby causing the power supply self-locking circuit 221 to act on the power supply control switch 2201 and keep the power supply control switch 2201 on, so as to realize the continuous and stable power supply from the power module 204 to the control device 203, reduce the problem of rapid circuit start-up and shutdown of the preset switch 219 due to unstable factors such as environment, and thus reduce the risk of component damage.

[0189] Based on some or all of the above embodiments, in some embodiments, the suction head 200 further includes a dust detection device disposed within the air duct 214. The dust detection device is configured to collect dust concentration data of the fluid within the air duct 214 and send the dust concentration data to the control device 203. Preferably, the dust detection device can be disposed within the air duct to detect the fluid passing through the air duct. Specifically, the dust concentration data indicates the dust concentration sucked in by the suction head, i.e., it can characterize the current degree of dirt on the surface to be cleaned, so that the control device can perform cleaning control of the suction head based on the dust concentration data. For example, the dust detection device can be an infrared dust detection device, etc.

[0190] In some implementations, the control device 203 is configured to send dust concentration data to a display module so that the display module displays the dust concentration data, thereby showing the user the current level of dirt.

[0191] In some embodiments, the suction head 200 also includes a flow regulating device, and the control device 203 is further configured to control the opening of the flow regulating device according to dust concentration data to adjust the vacuum level in the air duct 214, thereby adjusting the suction power of the suction head to increase suction power when the degree of dirt is high, optimize cleaning effect and efficiency, and reduce suction power when the degree of dirt is low, thereby reducing the movement resistance of the suction head.

[0192] In some implementations, the dust concentration indicated by the dust concentration data is positively correlated with the vacuum level in the air duct 214. That is, when the dust concentration is high, the control device 203 controls the opening of the flow regulating device to increase the vacuum level in the air duct 214, and conversely, it reduces the vacuum level in the air duct 214 to achieve automatic adjustment of vacuum suction.

[0193] Understandably, the upper limit of vacuum suction in the air duct 214 of the suction head 200 is determined by the vacuum motor 111 of the vacuum body 100. The suction head 200 cannot control the suction of the vacuum motor of the vacuum body 100 in the reverse direction. However, by setting a flow adjustment device, the vacuum degree of the air duct in the suction head 100 is adjusted. Thus, without adjusting the vacuum body 100, it can automatically adapt to the current state of dirt on the surface to be cleaned, improve the cleaning effect and ease of operation, reduce the complexity of the equipment, and improve the adaptability to different vacuum bodies 100.

[0194] In one embodiment, reference Figure 19 The flow regulation device includes a regulating valve and a vent 218. The vent 218 is connected to the air duct 214 via the regulating valve, and the opening degree of the regulating valve is negatively correlated with the vacuum degree within the air duct 214. The control device controls the opening degree of the regulating valve based on dust concentration data, thereby regulating the flow rate of the vent 218 to achieve vacuum degree regulation. Understandably, the larger the opening degree of the regulating valve, the larger the flow rate of the vent 218, and the lower the vacuum degree within the air duct 214, and vice versa.

[0195] In one embodiment, the flow regulating device includes a ground clearance regulating device configured to adjust the ground clearance between the bottom surface of the suction head 200 and the surface to be cleaned. The ground clearance regulated by the ground clearance regulating device is negatively correlated with the vacuum level within the air duct 214. The control device controls the operation of the ground clearance regulating device based on dust concentration data to adjust the ground clearance between the bottom surface of the suction head 200 and the surface to be cleaned. This allows for fine-tuning of the contact tightness between the bottom surface of the suction head and the surface to be cleaned while maintaining cleaning functionality. Specifically, when the dust concentration is high, the ground clearance is lowered to increase the vacuum level; conversely, when the dust concentration is low, the ground clearance is raised to decrease the vacuum level.

[0196] Understandably, when the dust concentration data indicates that the dust concentration is higher than the preset concentration, the vacuum level provided by the vacuum motor 111 of the vacuum unit 100 can be maintained in the air duct to achieve maximum dust collection efficiency.

[0197] Understandably, the modules of the suction head 200 described above can also take other forms, not limited to those mentioned in the above embodiments, as long as they can achieve the function of each module.

[0198] It should be noted that the vacuum cleaner body 100 is not necessarily an AC vacuum cleaner body, meaning it does not necessarily have to be directly powered by AC power. It can also be a main body structure powered by DC power, or a hybrid power supply type that can be powered by both AC and DC power. The vacuum source 110 is not necessarily directly powered by AC power. It can also be powered by DC power, or a hybrid power supply type that can be powered by both AC and DC power. The power module 204 of the suction head 200 is not necessarily a DC power source or must include a battery pack module (such as a lithium battery). The power module 204 can also be a power cord, an AC power supply cord, or may include an AC / DC conversion module to input AC power through the power cord and convert it to DC power. The power module 204 can also be a hybrid power supply type including a DC power supply module or an AC power supply module. The power module 204 can also be a dry cell battery. When the power supply device of the suction head 200 only includes low-voltage, low-energy-consumption devices such as lighting devices or grayscale detection devices, the power module 204 is preferably a dry cell battery. When the system 200 includes high-voltage, high-energy-consumption devices such as a DC floor brush motor, the power module 204 preferably includes a battery pack module or is a power cord. Furthermore, the vacuuming device of the present invention is not limited to a vacuum cleaner; other types of handheld cleaning devices can be used, such as carpet cleaners, wet and dry machines, or blower vacuum devices.

[0199] This application also provides a suction head control circuit, including: a power module 204, a preset switch 219, and a control device 203; the preset switch 219 is configured to open or close based on at least one of the following: changes in fluid suction in the air duct, air duct vibration state, contact state between the bottom surface of the suction head 200 and the surface to be cleaned, or connection state between the suction head and the vacuum cleaner body. The contact state between the bottom surface of the suction head 200 and the surface to be cleaned is detected by a ground-lift detection device, including the state where the bottom surface of the suction head 200 meets the contact conditions with the surface to be cleaned, and the state where the bottom surface of the suction head 200 is detached from the surface to be cleaned.

[0200] In some embodiments, the preset switch 219 includes at least one of the following: a trigger switch 2072 of the operation status detection device 207, a mechanical induction switch of the operation status detection device 207, or a switch control element 209.

[0201] In one embodiment, the trigger switch 2072 is configured to open or close based on changes in fluid suction within the duct.

[0202] In one embodiment, the mechanical sensing switch is configured to open or close based on at least one of the following: duct vibration state, a first distance signal, or a second distance signal.

[0203] In one embodiment, the switch control 209 is configured to open or close based on the connection state between the suction head and the vacuum body.

[0204] In one embodiment, the trigger switch includes a Hall switch.

[0205] In one embodiment, the mechanical sensing switch includes at least one of a vibration switch or a pressure switch.

[0206] In one embodiment, the switch control 209 includes a mechanical switch.

[0207] It should be noted that the implementation methods of the trigger switch 2072, the mechanical induction switch, and the switch control element 209 are consistent with the specific implementation methods in the foregoing embodiments, and will not be repeated here.

[0208] In some implementations, reference is made to Figure 20 The suction head control circuit includes a trigger power supply circuit 220, which is turned on in response to the closing of a preset switch 219, so that the power module 204 supplies power to the control device 203. After the preset switch 219 is triggered and closed, the trigger power supply circuit 220 between the power module 204 and the control device 203 is turned on to supply power to the control device, thereby executing subsequent control functions.

[0209] In one embodiment, the trigger power supply circuit 220 includes a power supply control switch 2201 and a power supply circuit assembly 2202. The power supply control switch 2201 is turned on in response to the closing of a preset switch 219, thereby enabling the trigger power supply circuit 220 to be turned on so that the power module supplies power to the control device through the power supply circuit assembly 2202. Specifically, the preset switch 219 and the power supply control switch 2201 in the trigger power supply circuit are physically connected, and no control signal from the control device is required to trigger the turn-on.

[0210] In some implementations, reference is made to Figure 20 The suction head control circuit also includes a power supply self-locking circuit 221. The control device 203 is configured to control the power supply self-locking circuit 221 to be turned on in response to the conduction of the trigger power supply circuit 220. The power supply self-locking circuit 221 is used to maintain the conduction state of the trigger power supply circuit 220 when it is in the conducting state. Specifically, after the trigger power supply circuit 220 is turned on, the control device 203 operates based on the input electrical energy to generate a signal to trigger the conduction of the power supply self-locking circuit 221, so that the power supply self-locking circuit 221 is turned on. This is used as a chip control power supply circuit, thereby reducing the rapid start-up and shutdown of the preset switch 219 due to unstable factors such as the environment, and reducing the risk of component damage.

[0211] In one embodiment, a self-locking control switch is provided in the power supply self-locking circuit 221, which is turned on or off in response to a signal sent by the control device.

[0212] In some implementations, reference is made to Figure 20 It also includes a status signal detection circuit 222, which is configured to detect the status signal of the preset switch 219 and feed the status signal back to the control device 203; wherein, the status signal includes an open signal corresponding to the preset switch 219 being closed or a close signal corresponding to the preset switch 219 being open.

[0213] In some embodiments, the suction head further includes a ground-lift sensor 217, configured to detect the contact state between the bottom surface of the suction head 200 and the surface to be cleaned; correspondingly, the suction head control circuit further includes a ground-lift detection circuit, configured to either supply power to the ground-lift sensor based on the control device, or feed back data corresponding to the contact state between the bottom surface and the surface to be cleaned to at least one of the control devices. Specifically, the data corresponding to the contact state between the bottom surface and the surface to be cleaned fed back to the control device generates the aforementioned first distance signal and second distance signal.

[0214] In one embodiment, the power supply control switch 2201 can be a semiconductor switch, such as a MOS (metal-oxide semiconductor) switch. For example, the power supply control switch 2201 is a MOSFET switch, which is turned on when its gate is grounded. When the preset switch 219 is turned on, it triggers the gate of the power supply control switch 2201 to be grounded and turned on. The control device 203 (such as a chip) is connected to the battery module through the trigger power supply circuit 220 where the power supply control switch 2201 is located, thereby powering the control device. Thus, before the power supply control switch 2201 is closed, the preset switch 219 is connected to the power ground line, resulting in low circuit power consumption. The control device and related circuits can be quickly started through the power supply control switch 2201. One pin of the control device 203 is connected to the grounding circuit of the trigger control switch through the power supply self-locking circuit 221. Thus, when the control device 203 triggers the power supply self-locking circuit 221 to conduct, the G terminal of the power supply control switch 2201 remains grounded. Therefore, regardless of whether the preset switch 219 is subsequently opened or closed, the power supply control switch 2201 can be grounded through the power supply self-locking circuit 221 controlled by the control device to maintain connection and achieve power supply self-locking.

[0215] In some embodiments, the suction head includes any one of a floor brush device, a lighting device 211, or a dust detection device, and the floor brush device includes a DC floor brush motor; the suction head control circuit also includes at least one of a lighting control circuit, a motor control circuit 223, or a dust detection circuit.

[0216] Specifically, the lighting control circuit is configured to control the opening and closing of the lighting device based on the control device 203.

[0217] Specifically, the motor control circuit 223 is configured to control the operation and shutdown of the DC ground brush motor based on the control device 203.

[0218] Specifically, the dust detection circuit is configured to power the dust detection device based on the control device 203 or to feed back the detected dust concentration data to the control device.

[0219] It should be noted that the control device 203 performs related control of the suction head 200 based on the open signal, close signal, first distance signal, and second distance signal. This control method is consistent with the control methods of various auxiliary functional devices such as the floor brush device, lighting device 211, power indicator module, dust detection device, etc., or controlling the suction head to turn off. It will not be described in detail here.

[0220] In one embodiment, the status signal detection circuit 222 detects the opening and closing status of the preset switch 219. When the control device 203 determines that the shutdown condition is met, or when at least one of the floor brush device, lighting device 211, power indicator module, and auxiliary function devices meets the stop operation condition, the power supply self-locking circuit 221 is controlled to open so that the power supply control switch 2201 can be triggered to open, or opened based on the disconnection signal from the control device 203.

[0221] The following describes the control method applied to the suction head 200 according to this application. This application provides method operation steps as shown in the embodiments or flowcharts, but based on conventional or non-inventive labor, more or fewer operation steps may be included. The order of steps listed in the embodiments is merely one of many possible execution orders and does not represent the only execution order. In actual device, system, or equipment products, the method can be executed sequentially according to the embodiments or drawings, or in parallel (e.g., in a parallel processor or multi-threaded processing environment).

[0222] The suction head 200 is detachably connected to the vacuum body 100 having a vacuum source 110, forming a continuous channel communicating with the vacuum source 110; the system includes a power module 204, a floor brush device, an operating status detection device 207, an air duct 214, and a control device 203; the power module 204 is configured to provide DC power to the floor brush device, the operating status detection device 207, and the control device 203 respectively, and the floor brush device is communicatively connected to the control device 203; the operating status detection device 207 is capable of switching a status signal in response to changes in fluid suction within the air duct 214; the method includes: operating or shutting down the floor brush device according to the switching of the status signal.

[0223] Alternatively, the method includes: activating the floor brush device according to an activation signal.

[0224] Optionally, the method includes: turning off the floor brush device according to a shutdown signal.

[0225] Optionally, the method includes: causing the floor brush device to operate after the duration of the activation signal reaches a first preset duration.

[0226] Optionally, the method includes: turning off the floor brush device after the duration of the shutdown signal reaches a second preset duration.

[0227] In other cases, the operating status detection device 207 is communicatively connected to the control device 203, which is configured to monitor the status signal of the operating status detection device 207. The method may include S201: monitoring the status signal of the operating status detection device 207 and controlling the operation or shutdown of the brush device according to the status signal. In a possible implementation, the method further includes S205: if the vacuum information indicates that there is no vacuum source suction or the suction head 200 does not meet at least one of the following conditions, the DC floor brush motor is controlled to stop running.

[0228] In a possible implementation, the operating status detection device 207 is disposed in the air duct 214 and can switch the status signal to an open signal when the fluid suction force in the air duct 214 is higher than a preset suction force, and can switch the status signal to an closed signal when the fluid suction force in the air duct 214 is lower than a preset suction force.

[0229] In a possible implementation, the preset suction force is the lower limit of the suction force required to be achieved in the air duct 214 when there is fluid suction within the air duct 214 and the bottom surface of the suction head 200 is in contact with the surface to be cleaned.

[0230] Accordingly, the method also includes S301: controlling the ground brush device to close in response to a shutdown signal.

[0231] Preferably, the method further includes S303: controlling the operation of the ground brush device in response to the duration of the start signal reaching a first preset duration.

[0232] Preferably, the method further includes S305: controlling the suction head 200 to shut down in response to the duration of the shutdown signal reaching a second preset duration.

[0233] In a possible implementation, fluid suction exists in the air duct 214 when the fluid suction is higher than the preset suction indicator, and no fluid suction exists in the air duct 214 when the fluid suction is lower than the preset suction indicator.

[0234] Preferably, the preset suction force is the lower limit of the fluid suction force in the air duct 214 when the air duct 214 is connected to the vacuum source 110 of the vacuum body 100 and the vacuum source 110 is in operation.

[0235] Accordingly, the suction head 200 also includes a ground-lift sensing device 217, which is used to operate the floor brush device when the bottom surface of the suction head 200 meets the contact conditions with the surface to be cleaned, and to shut down the floor brush device when the bottom surface of the suction head 200 is removed from the surface to be cleaned.

[0236] In some embodiments, the ground-sensing device 217 includes a distance sensor for detecting the distance between the bottom surface of the suction head 200 and the surface to be cleaned. It generates a first distance signal when the bottom surface of the distance-indicating suction head 200 contacts the surface to be cleaned, and generates a second distance signal when the bottom surface of the distance-indicating suction head 200 leaves the surface to be cleaned. The sensor then feeds back the first and second distance signals to the control device 203. Accordingly, In one embodiment, the method further includes S401: controlling the operation of the ground brush device in response to an activation signal and a first distance signal.

[0237] In one embodiment, the method further includes S403: controlling the operation of the ground brush device in response to the duration of the activation signal and the first distance signal reaching a first preset duration.

[0238] In one embodiment, the method further includes S405: controlling the ground brush device to close in response to either the shutdown signal or the second distance signal.

[0239] In one embodiment, the method further includes S407: in response to the duration of the shutdown signal or the second distance signal reaching a second preset duration, controlling the suction head 200 to shut down.

[0240] In other embodiments, the ground-lift sensing device 217 includes a ground-contact mechanism and a micro switch, the micro switch being disposed between the power module 204 and the floor brush device. The ground-contact mechanism can trigger the micro switch when the bottom surface of the suction head 200 contacts the surface to be cleaned, enabling the power module 204 to supply power to the floor brush device, and can stop triggering the micro switch when the bottom surface of the suction head 200 detaches from the surface to be cleaned, thereby cutting off the power supply between the power module 204 and the floor brush device. Accordingly, In one embodiment, the method further includes S501: when the control device 203 receives an activation signal and the micro switch is in a triggered state, the floor brush device operates.

[0241] In one embodiment, the method further includes S503: if the control device 203 receives a shutdown signal or the micro switch is in a non-triggered state, the floor brush device is turned off.

[0242] In one embodiment, the method further includes S505: if the control device 203 receives a shutdown signal or the micro switch is in a non-triggered state for a duration of a second preset duration, the suction head 200 is controlled to shut down.

[0243] In other embodiments, the ground-based sensing device 217 includes a vacuum detection device disposed within the air duct 214 and electrically connected to the power module 204, for collecting vacuum level information indicating the vacuum level within the air duct 214. Accordingly, In one embodiment, the method further includes S601: in response to an activation signal and vacuum information exceeding a preset vacuum level, controlling the operation of the floor brush device.

[0244] In one embodiment, the method further includes S603: controlling the operation of the floor brush device in response to an activation signal and the duration for which the vacuum information exceeds a preset vacuum level reaches a first preset duration.

[0245] In one embodiment, the method further includes S605: controlling the ground brush device to shut down in response to either the shutdown signal or the vacuum level information not exceeding a preset vacuum level.

[0246] In one embodiment, the method further includes S607: in response to the shutdown signal or the vacuum information not exceeding the preset vacuum level for a duration of a second preset duration, the suction head 200 is controlled to shut down.

[0247] In a possible implementation, the suction head 200 further includes a power indicator module 206, and the method further includes: S701: Monitors the power information of power module 204; S703: Control power indicator module 206 to display the power status of power module 204 based on power information; if the power information indicates that the power of power module 204 is lower than the preset power, the power status displayed by power indicator module 206 is a power alarm status.

[0248] In a possible implementation, the suction head 200 may also include a lighting device 211 electrically connected to the power module 204, and the method may further include: controlling the lighting device 211 to turn on when the operation of the floor brush device needs to be controlled.

[0249] In a possible implementation, the method further includes: controlling the lighting device 211 to turn off when the ground brush device needs to be turned off.

[0250] In a possible implementation, the suction head 200 further includes a switch control element 209; the switch control element 209 is exposed on the outer surface of the suction head 200; or, the switch control element 209 is disposed at a first connection end of the suction head 200, and the switch control element 209 is triggered by the connection state between the first connection end and the second connection end of the vacuum body 100. Accordingly, the method further includes: controlling the operation of the operating status detection device 207 in response to the triggering of the switch control element 209.

[0251] In a possible implementation, the method further includes: controlling the operation of the ground-based sensing device in response to the triggering of the switch control element 209.

[0252] In a possible implementation, the method further includes: controlling the power indicator module 206 to operate in response to the triggering of the switch control element 209.

[0253] The following combination Figure 16 and Figure 17 In introducing a control method in an application scenario, it should be understood that, although Figure 16 and Figure 17 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 16 and Figure 17At least some of the steps in the process may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0254] refer to Figure 16 Taking an example where the suction head 200 does not have a switch control component 209, the power module 204 is assembled to the main body of the suction head 200 to trigger the suction head 200 to the open state, and the control method includes: detecting whether the vacuum source 110 is connected and turned on based on the operating status detection device 207, and performing ground clearance detection based on the vacuum detection device. S11, the operation status detection device 207 and the vacuum detection device are in operation, respectively feeding back the status signal and the collected vacuum information to the control device 203; S12, the control device 203 determines whether the status signal is an open signal. If yes, proceed to S13; if no, it is an closed signal, proceed to S19. S13, Is the vacuum level greater than the preset vacuum level A? If yes, proceed to S14; otherwise, proceed to S15 and S19. S14. Is the duration of the vacuum level being greater than the preset vacuum level A greater than the first preset duration T1? If yes, proceed to S16; otherwise, proceed to S11. S15, Is the duration of vacuum degree less than or equal to preset vacuum degree A greater than the second preset duration T2? If yes, proceed to S20; otherwise, proceed to S11. S16 controls the operation of the DC ground brush motor and the lighting device 211 to be turned on; S17. Is the battery level greater than the preset battery level C? If yes, proceed to S11; otherwise, proceed to S18. S18, the power indicator light flashes alarm; S19 controls the DC ground brush motor to stop running and the lighting device 211 to turn off; S20, Power off, to shut down the DC floor brush motor, lighting device 211, power indicator module, etc., and end the process.

[0255] refer to Figure 17 Taking a suction head 200 equipped with a switch control element 209, a power module 204 assembled to the main body of the suction head 200 to trigger the suction head 200 to the open state, and based on the operation status detection device 207 detecting whether the vacuum source 110 is connected and turned on, and based on the vacuum detection device performing ground clearance detection, in one example, the control method includes: S21. Has the switch control element 209 been triggered? If yes, proceed to S22; otherwise, repeat S21. S22, the power indicator module 206 is working; S23, the operation status detection device 207 and the vacuum detection device are in operation, and the collected vacuum information is fed back to the control device 203; S24, the control device 203 determines whether the status signal is an open signal. If yes, proceed to S25; if no, it is an closed signal, proceed to S32. S25, control device 203 determines whether the vacuum degree is greater than the preset vacuum degree A? If yes, proceed to step S26; if no, proceed to steps S27 and S32. S26. Is the duration of the vacuum level being greater than the preset vacuum level A greater than the first preset duration T1? If yes, proceed to S28; otherwise, proceed to S23. S27. Is the duration of vacuum degree less than or equal to preset vacuum degree A greater than the second preset duration T2? If yes, proceed to S33; otherwise, proceed to S23. S28 controls the operation of the DC ground brush motor and the lighting device 211 to be turned on; S29. Has the switch control element 209 been pressed again? If yes, proceed to S33; otherwise, proceed to S30. S30, Is the battery level greater than the preset battery level C? If yes, proceed to S23; otherwise, proceed to S31. S31, the power indicator light flashes alarm; S32 controls the DC floor brush motor to stop running and the lighting device 211 to turn off; S33, Power off, to shut down the DC floor brush motor, lighting device 211, power indicator module, etc., and end the process.

[0256] It should be noted that the above embodiments of the suction head 200, control method, and suction head control circuit are based on the same inventive concept and are implemented using the same or similar methods.

[0257] Embodiments of this application also provide a control device for a suction head 200. The device includes a processor and a memory. The memory stores at least one instruction or at least one program. The processor loads and executes the at least one instruction or at least one program to implement the control method for the suction head 200 as described above.

[0258] Embodiments of this application also provide a control system for a suction head 200, the system including the control device 203 or control equipment for the suction head 200 described above.

[0259] Embodiments of this application also provide a control device for a suction head 200, including a memory and a processor. The memory stores at least one instruction and at least one program. The at least one instruction and at least one program are loaded and executed by the processor to implement the above-described control method for the suction head 200.

[0260] Furthermore, Figure 21 A schematic diagram of the hardware structure of an electronic device for implementing the control method applied to the suction head 200 provided in the embodiments of this application is shown. The electronic device can participate in or include the apparatus or system provided in the embodiments of this application. Figure 21 As shown, electronic device 1 may include one or more processors 902 (shown as 902a, 902b, ..., 902n in the figure) 902 (processor 902 may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 904 for storing data, and a transmission device 906 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 21 The structure shown is for illustrative purposes only and does not limit the structure of the electronic device described above. For example, electronic device 1 may also include... Figure 21 The more or fewer components shown, or having the same Figure 21 The different configurations shown.

[0261] It should be noted that the aforementioned one or more processors 902 and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be wholly or partially embodied in software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or wholly or partially integrated into any other element within the electronic device 1 (or mobile device). As involved in the embodiments of this application, the data processing circuit serves as a processor control mechanism (e.g., selection of a variable resistor termination path connected to an interface).

[0262] The memory 904 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the method in the embodiments of this application. The processor 902 executes various functional applications and data processing by running the software programs and modules stored in the memory 904, thereby realizing the control method applied to the suction head 200 described above. The memory 904 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 904 may further include memory remotely located relative to the processor 902, and these remote memories can be connected to the electronic device 1 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0263] The transmission device 906 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the electronic device 1. In one example, the transmission device 906 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 906 may be a Radio Frequency (RF) module used for wireless communication with the Internet.

[0264] The display can be, for example, a touchscreen liquid crystal display (LCD) that allows a user to interact with the user interface of electronic device 1 (or mobile device).

[0265] In this embodiment, the memory can be used to store software programs and modules. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for the functions, etc.; the data storage area may store data created according to the use of the device, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory control device 203 to provide the processor with access to the memory.

[0266] Embodiments of this application also provide a computer-readable storage medium, including a memory and a processor, wherein the memory stores at least one instruction and at least one program, and the at least one instruction and at least one program are loaded and executed by the processor to implement the control method applied to the suction head 200 as described above.

[0267] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0268] According to one aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various alternative implementations described above.

[0269] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, the above description focuses on specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired results. In some implementations, multitasking and parallel processing are also possible or may be advantageous.

[0270] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device and apparatus embodiments are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0271] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0272] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A suction head (200), characterized in that, include: Power module (204), floor brush device, operating status detection device (207), air duct (214) and control device (203); The power module (204) is configured to supply DC power to the floor brush device, the operating status detection device (207) and the control device (203) respectively, and the floor brush device is electrically connected to the control device (203); The operating status detection device (207) can switch status signals in response to changes in fluid suction within the air duct (214); The floor brush device is configured to operate or shut down according to the switching of the status signal.

2. The suction head (200) according to claim 1, characterized in that, The operating status detection device (207) is installed in the air duct (214) and can switch the status signal to an open signal when the fluid suction in the air duct (214) is higher than the preset suction, and can switch the status signal to a closed signal when the fluid suction in the air duct (214) is lower than the preset suction. Preferably, the fluid suction force being higher than the preset suction force indicates that there is fluid suction force in the air duct (214), and the fluid suction force being lower than the preset suction force indicates that there is no fluid suction force in the air duct (214); Preferably, the preset suction force is the lower limit of the fluid suction force in the air duct (214) when the air duct (214) is connected to the vacuum source of the vacuum body and the vacuum source is in operation. Preferably, the preset suction force is the lower limit of the suction force required to be achieved in the air duct (214) when there is fluid suction in the air duct (214) and the bottom surface of the suction head (200) is in contact with the surface to be cleaned. Preferably, the operating status detection device (207) includes a blocking member (2071) disposed in the air duct (214) and a trigger switch (2072) disposed on the side wall (215) of the air duct. One end of the blocking member (2071) is connected to the side wall (215) of the air duct, and the other end is a free end (2071a). The blocking member (2071) can at least partially block the air duct (214). The free end (2071a) of the blocking member (2071) can move to the side wall (215) of the air duct (214) and trigger the trigger switch (2072) when the fluid suction force in the air duct (214) is higher than the preset suction force, so that the state signal of the trigger switch (2072) is switched to the open signal; and, The free end (2071a) of the blocking member (2071) can detach from the side wall (215) of the air duct (214) when the fluid suction force in the air duct (214) is lower than the preset suction force, so that the state signal of the trigger switch (2072) is switched to the off signal; Preferably, the operating status detection device (207) includes a mechanical induction switch, which is configured to trigger in response to the fluid suction force in the air duct (214) being higher than the preset suction force to generate an opening signal, and to close in response to the fluid suction force in the air duct (214) being lower than the preset suction force to generate a closing signal. Preferably, the mechanical sensing switch is configured to trigger when the duct vibration state corresponding to the fluid suction of the duct (214) meets a preset vibration state, so as to generate an opening signal, and to close when the duct vibration state corresponding to the fluid suction of the duct (214) does not meet the preset vibration state, so as to generate a closing signal.

3. The suction head (200) according to claim 2, characterized in that, One end of the blocking member (2071) is rotatably connected to the side wall (215) of the air duct; or, The blocking member (2071) is a flexible baffle. A thin area is provided at one end of the blocking member (2071) that is connected to the side wall (215) of the air duct. The blocking member (2071) can rotate about the thin area as an axis. Preferably, the blocking member (2071) has a groove (2071b) on the side opposite to the bottom surface of the suction head (200), and the bottom of the groove (2071b) forms the thin area. Preferably, the sidewall of the air duct (215) is provided with a receiving cavity (216) that can accommodate a blocking member (2071) that moves to the sidewall of the air duct (215). Preferably, the bottom of the accommodating cavity (216) is provided with a limiting section (2161) and a gap section (2162) along the direction of fluid suction. When the blocking member (2071) is housed in the accommodating cavity (216), the limiting section (2161) abuts against the blocking member (2071), and the gap section (2162) is spaced apart from the blocking member (2071).

4. The suction head (200) according to claim 2, characterized in that, The free end (2071a) of the blocking member (2071) is provided with a magnetic element (2073), and the trigger switch (2072) can be triggered by the magnetic element (2073) when the free end (2071a) moves to the side wall (215) of the air duct.

5. The suction head (200) according to any one of claims 2-4, characterized in that, The floor brush device is configured to operate in response to the activation signal; Preferably, the floor brush device is configured to turn off according to the off signal; Preferably, the floor brush device is configured to operate for a first preset duration based on the duration of the activation signal; Preferably, the floor brush device is configured to turn off after a second preset duration based on the duration of the off signal; Preferably, the control device (203) is configured to monitor the status signal of the operating status detection device (207), and the control device (203) is configured to control the operation of the floor brush device in response to the activation signal; Preferably, the control device (203) is configured to control the floor brush device to shut down in response to the shutdown signal; Preferably, the control device (203) is configured to control the operation of the floor brush device in response to the duration of the activation signal reaching a first preset duration; Preferably, the control device (203) is configured to control the suction head (200) to shut down in response to the duration of the shutdown signal reaching a second preset duration. Preferably, the suction head (200) further includes a ground-lift sensing device (217) configured to operate the floor brush device when the bottom surface of the suction head (200) meets the contact condition with the surface to be cleaned, and to shut down the floor brush device when the bottom surface of the suction head (200) is removed from the surface to be cleaned.

6. The suction head (200) according to claim 5, characterized in that, The ground clearance sensing device (217) includes a distance sensor configured to detect the distance between the bottom surface of the suction head (200) and the surface to be cleaned, generate a first distance signal when the distance indicates that the bottom surface of the suction head (200) is in contact with the surface to be cleaned, generate a second distance signal when the distance indicates that the bottom surface of the suction head (200) is detached from the surface to be cleaned, and is configured to feed back the first distance signal and the second distance signal to the control device (203). Preferably, the control device (203) is configured to control the operation of the floor brush device in response to the activation signal and the first distance signal; Preferably, the control device (203) is configured to control the operation of the floor brush device in response to the duration of the activation signal and the first distance signal reaching a first preset duration; Preferably, the control device (203) is configured to control the floor brush device to turn off in response to either the off signal or the second distance signal; Preferably, the control device (203) is configured to control the suction head (200) to shut down in response to the duration of the shutdown signal or the second distance signal reaching a second preset duration; Preferably, the suction head further includes at least one auxiliary function device, which includes at least one of a dust detection device, a mite removal device, or a sterilization device. Preferably, the operating status detection device (207) includes a mechanical sensing switch that is triggered based on the vibration state of the air duct satisfying a preset vibration state. The control device (203) responds to at least one of the following: the opening signal, the duration of the opening signal reaching a first preset duration, the existence of the opening signal and the first distance signal, or the duration of the opening signal reaching the first preset duration and the existence of the first distance signal, by controlling the operation of at least one of the floor brush device, the lighting device, the power indicator module, or each auxiliary function device; preferably, the control device (203) controls the floor brush device to turn off in response to the second distance signal or the duration of the second distance signal reaching a second preset duration. Preferably, the operating status detection device (207) includes a mechanical induction switch that is triggered based on the fluid suction force in the air duct (214) being higher than the preset suction force. The control device (203) responds to at least one of the following: the opening signal, the duration of the opening signal reaching a first preset duration, the presence of the opening signal and the first distance signal, or the duration of the opening signal reaching a first preset duration and the first distance signal reaching a first preset duration, by controlling at least one of the following: the floor brush device, the lighting device, the power indicator module, or each of the auxiliary function devices to operate. Preferably, the control device (203) responds to at least one of the following: the closing signal, the second distance signal, the duration of the closing signal reaching a second preset duration, or the duration of the second distance signal reaching a second preset duration, by controlling the floor brush device to close, or by controlling the lighting device, the power indicator module, or each of the auxiliary function devices to close. Preferably, the ground-off sensing device (217) includes a ground-contact transmission mechanism and a micro switch, wherein the micro switch is disposed between the power module (204) and the ground brush device; The ground contact transmission mechanism can trigger the micro switch when the bottom surface of the suction head (200) contacts the surface to be cleaned, so that the power module (204) can supply power to the floor brush device, and can stop triggering the micro switch when the bottom surface of the suction head (200) is removed from the surface to be cleaned, so as to cut off the power supply of the power module (204) and the floor brush device. Preferably, the floor brush device operates when the control device (203) receives the activation signal and the micro switch is in the triggered state; Preferably, the floor brush device is turned off if the control device (203) receives either the shutdown signal or the micro switch is in a non-triggered state; Preferably, if the control device (203) receives the shutdown signal or the micro switch is in a non-triggered state for a duration of a second preset duration, the suction head (200) is controlled to shut down. Preferably, the ground-contact transmission mechanism includes a roller and a transmission component connected to the roller, and the micro switch includes a micro switch body and a trigger component; The roller is used to contact the surface to be cleaned and to apply pressure to the trigger via the transmission component, so that the trigger and the micro switch body are closed and the trigger state is reached.

7. The suction head (200) according to claim 5, characterized in that, The ground-off sensing device (217) includes a vacuum detection device disposed in the air duct (214) and electrically connected to the power module (204), configured to collect vacuum information indicating the vacuum level in the air duct (214); Preferably, the control device (203) is configured to control the operation of the floor brush device in response to the activation signal and the vacuum information exceeding a preset vacuum level; Preferably, the control device (203) is configured to control the floor brush device to operate in response to the activation signal and the duration for which the vacuum information exceeds a preset vacuum level reaches a first preset duration; Preferably, the control device (203) is configured to control the floor brush device to shut down in response to either the shutdown signal or the vacuum information not exceeding a preset vacuum level; Preferably, the control device (203) is configured to control the suction head (200) to shut down in response to the shutdown signal or the duration during which the vacuum information does not exceed the preset vacuum level for a second preset duration.

8. The suction head (200) according to any one of claims 1-4, characterized in that, The suction head (200) also includes a power indicator module, and the control device (203) is configured to: Monitor the power supply information of the power module (204); The power indicator module is controlled to display the power status of the power module (204) based on the power information; if the power information indicates that the power of the power module (204) is lower than the preset power, the power status displayed by the power indicator module is a power alarm status. Preferably, the suction head (200) further includes a lighting device (211) electrically connected to the power module (204), and the control device (203) is configured to: When it is necessary to control the operation of the floor brush device, control the lighting device (211) to turn on; When it is necessary to control the floor brush device to be turned off, control the lighting device (211) to be turned off. Preferably, the suction head (200) further includes a switch control element (209); The switch control element (209) is exposed on the outer surface of the suction head (200); or, The switch control element (209) is disposed at the first connection end of the suction head (200), and the switch control element (209) is triggered by the connection state between the first connection end and the second connection end of the vacuum body; The control device (203) is configured to: control the operation of the operating status detection device (207) in response to the triggering of the switch control element (209); preferably, control the operation of the ground clearance sensing device (217) in response to the triggering of the switch control element (209); preferably, control the operation of the power indicator module in response to the triggering of the switch control element (209). Preferably, the power module (204) is configured to supply power to the control device (203) via a trigger power supply circuit (220); the trigger power supply circuit (220) is configured to be turned on in response to an activation signal from the operating status detection device (207); Preferably, the control device (203) is configured to turn on in response to the conduction control power supply self-locking circuit (221) of the trigger power supply circuit (220), the power supply self-locking circuit (221) being used to maintain the conduction state of the trigger power supply circuit (220) in the conduction state.

9. The suction head (200) according to any one of claims 1-4, characterized in that, The suction head (200) also includes a dust detection device disposed in the air duct (214), the dust detection device being configured to collect dust concentration data of the fluid in the air duct (214) and send the dust concentration data to the control device (203). Preferably, the control device (203) is configured to send the dust concentration data to the display module so that the display module displays the dust concentration data; Preferably, the suction head (200) further includes a flow regulating device, and the control device (203) is further configured to control the opening of the flow regulating device according to the dust concentration data to regulate the vacuum level in the air duct (214); Preferably, the dust concentration indicated by the dust concentration data is positively correlated with the vacuum level within the air duct (214); Preferably, the flow regulating device includes a regulating valve and a vent (218), the vent (218) and the air duct (214) are connected by the regulating valve, and the opening degree of the regulating valve is negatively correlated with the vacuum degree in the air duct (214); Preferably, the flow rate regulating device includes a ground clearance regulating device configured to adjust the ground clearance between the bottom surface of the suction head (200) and the surface to be cleaned, wherein the ground clearance regulated by the ground clearance regulating device is negatively correlated with the vacuum level in the air duct (214).

10. The suction head (200) according to any one of claims 1-4, characterized in that, The suction head (200) is provided with a first connecting end located at the end of the air duct (214). The first connecting end is used to detachably connect with a second connecting end of the vacuum body so that the air duct (214) communicates with the fluid channel of the vacuum body to form a continuous channel. The first connecting end includes an elastic joint (213) for abutting against the second connecting end, the inner diameter of the elastic joint (213) being adjustable; Preferably, the suction head (200) further includes a grip (212) disposed on the outer shell of the suction head (200); The grip (212) extends from the housing in a direction away from the floor brush device, or the grip (212) extends from the housing in a direction close to the first connecting end, or the grip (212) is arranged in an inverted U-shape on the housing; Preferably, the power module (204) is located at the end of the air duct (214) away from the floor brush device; Preferably, the power module (204) includes a battery pack module, which is disposed at one end of the air duct (214) away from the floor brush device and located on the front side of the air duct (214).

11. A vacuum cleaner, characterized in that, It includes a vacuum cleaner body and a vacuum head (200) as described in any one of claims 1-9.

12. A suction head control circuit, characterized in that, include: The power module (204), the preset switch and the control device (203) are configured to be open or closed based on at least one of the following: fluid suction change in the air duct, air duct vibration state, contact state between the bottom surface of the suction head (200) and the surface to be cleaned, or connection state between the suction head and the vacuum body.

13. The suction head control circuit according to claim 12, characterized in that, The preset switch (219) includes at least one of a trigger switch (2072), a mechanical induction switch, or a switch control element (209); The trigger switch (2072) is configured to open or close based on changes in fluid suction within the air duct (214); The mechanical sensing switch is configured to open or close based on at least one of the duct vibration state, a first distance signal, or a second distance signal. The switch control (209) is configured to open or close based on the connection state between the suction head (200) and the vacuum body (100); Preferably, the trigger switch (2072) includes a Hall switch; Preferably, the mechanical sensing switch includes at least one of a vibration switch or a pressure switch; Preferably, the switch control element (209) includes a mechanical switch; Preferably, the suction head control circuit further includes a trigger power supply circuit (220), which is used to conduct in response to the closing of the preset switch (219) so that the power module (204) supplies power to the control device (203); Preferably, the suction head control circuit further includes a power supply self-locking circuit (221), and the control device (203) is configured to control the power supply self-locking circuit (219) to be turned on in response to the conduction of the trigger power supply circuit (220), the power supply self-locking circuit (219) being used to maintain the conduction state of the trigger power supply circuit (220) in the on state. Preferably, the suction head control circuit further includes a status signal detection circuit (222), configured to detect the status signal of the preset switch (219) and feed the status signal back to the control device (203); the status signal includes an open signal corresponding to the preset switch being closed or an open signal corresponding to the preset switch being open; Preferably, the suction head (200) further includes a ground-lift sensing device (217) configured to detect the contact state between the bottom surface of the suction head (200) and the surface to be cleaned; the suction head control circuit further includes a ground-lift detection circuit configured to supply power to the ground-lift sensing device based on the control device, or to feed back data corresponding to the contact state between the bottom surface and the surface to be cleaned to at least one of the control devices. Preferably, the suction head includes any one of a floor brush device, a lighting device (211), or a dust detection device, wherein the floor brush device includes a DC floor brush motor (201); the control circuit further includes at least one of a lighting control circuit, a motor control circuit (223), or a dust detection circuit; preferably, the lighting control circuit is configured to control the opening and closing of the lighting device (211) based on the control device (203); Preferably, the motor control circuit (223) is configured to control the operation and shutdown of the DC ground brush motor (201) based on the control device (203); Preferably, the dust detection circuit is configured to supply power to the dust detection device based on the control device (203) or to feed back the detected dust concentration data to the control device (203).

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