Cleaning equipment

Abstract

The utility model relates to the technical field of electric tools, and discloses cleaning equipment. The cleaning equipment comprises an equipment body provided with a driving device and a cleaning component detachably connected with the equipment body through a connecting structure, and torque output by the driving device acts on the cleaning component through the connecting structure. The connecting structure comprises a first connecting piece, a second connecting piece and a connecting piece, the second connecting piece is accommodated in the locking space; the locking piece protrudes out of the locking space and abuts against the second connecting piece so as to limit the second connecting piece to be separated from the locking space; and the unlocking piece is connected with the locking piece, and responds to unlocking operation applied to the unlocking piece to drive the locking piece to retreat from the locking space. By means of the connecting structure, a user can conveniently and rapidly complete replacement operation of the cleaning component, meanwhile, the requirement for torque transmission is met, and the cleaning component can rotate under the action of the driving device.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to a cleaning device. Background Technology

[0002] An electric cleaning brush is a widely used power tool for daily cleaning, mainly consisting of a handle and a cleaning component. The handle includes a grip and control buttons, and internally houses the power system, control circuitry, and motor drive mechanism. The cleaning component is equipped with replaceable cleaning attachments and, driven by the motor, performs rotational or vibratory cleaning actions. By attaching different cleaning attachments, it can be used for cleaning hard floor surfaces, deep cleaning tile grout, routine maintenance of bathroom walls, and dusting furniture surfaces.

[0003] When the cleaning scenario changes, users need to replace the cleaning accessories by removing the currently installed accessories and installing a different one. However, the existing process of disassembling and installing cleaning accessories is cumbersome and difficult to complete quickly. Utility Model Content

[0004] The cleaning device provided by this utility model can at least partially overcome the defects of existing electric cleaning brushes.

[0005] In a first aspect, this utility model provides a cleaning device. The cleaning device includes: a device body, the device body being provided with a driving device; a cleaning component, the cleaning component being detachably connected to the device body via a connecting structure, wherein the torque output by the driving device acts on the cleaning component via the connecting structure; wherein the connecting structure includes: a first connecting member, the first connecting member forming a locking space; a second connecting member, the second connecting member being housed within the locking space; a locking member, the locking member protruding from the locking space and abutting against the second connecting member to restrict the second connecting member from disengaging from the locking space; and an unlocking member, the unlocking member engaging with the locking member, and in response to an unlocking operation applied to the unlocking member, driving the locking member to exit the locking space.

[0006] At least one advantage of the cleaning equipment provided by this utility model is that, by setting a quick-disassembly and detachment connection structure, users can easily and quickly complete the replacement of cleaning components, effectively improving the user experience of the cleaning equipment. Furthermore, it can also meet the requirements of torque transmission, allowing the cleaning components to rotate under the action of the drive device. Attached Figure Description

[0007] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0008] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application;

[0009] Figure 2 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application, showing one implementation of the power transmission device;

[0010] Figure 3 This is a schematic diagram of the structure of a cleaning device provided in another embodiment of this application, illustrating another implementation of the power transmission device;

[0011] Figure 4 This is an exploded view of the cleaning equipment provided in the embodiments of this application;

[0012] Figure 5 This is a schematic diagram of the cleaning equipment provided in the embodiments of this application, showing the angle locking device in the unlocked state;

[0013] Figure 6 This is a schematic diagram of the cleaning equipment provided in the embodiments of this application, showing the angle locking device in a locked state;

[0014] Figure 7 This is a cross-sectional view of the angle locking component provided in an embodiment of this application;

[0015] Figure 8 This is a schematic diagram of the state switching of the pressing and locking component provided in the embodiments of this application;

[0016] Figure 9 This is a schematic diagram of the cleaning equipment provided in the embodiments of this application, showing that the first main body and the second main body are at approximately a 90° angle.

[0017] Figure 10 This is a schematic diagram of the structure of a cleaning device provided in another embodiment of this application, showing the case where the included angle between the first body and the second body is an obtuse angle;

[0018] Figure 11 This is a schematic diagram of the cleaning components provided in the embodiments of this application, showing a variety of different cleaning components;

[0019] Figure 12 This is a cross-sectional view of the connection structure provided in the embodiments of this application;

[0020] Figure 13This is an exploded view of the connection structure provided in the embodiments of this application;

[0021] Figure 14 This is a cross-sectional view of the first connector provided in an embodiment of this application;

[0022] Figure 15 This is a schematic diagram of the second connector provided in an embodiment of this application;

[0023] Figure 16 This is a schematic diagram of the second connector provided in an embodiment of this application, showing... Figure 15 The second connector shown is shown with the top portion of its structure removed.

[0024] Figure 17 This is a schematic diagram of the length adjustment device provided in an embodiment of this application;

[0025] Figure 18 This is a functional block diagram of the electronic system of the cleaning equipment provided in the embodiments of this application;

[0026] Figure 19 This is a circuit schematic diagram of the charge / discharge management module provided in an embodiment of this application;

[0027] Figure 20 This is a circuit schematic diagram of a charge / discharge management module provided in another embodiment of this application;

[0028] Figure 21 This is a circuit schematic diagram of the first signal generation circuit provided in the embodiments of this application;

[0029] Figure 22 This is a circuit diagram of the second signal generation circuit provided in the embodiments of this application;

[0030] Figure 23 This is a circuit diagram of the third signal generation circuit provided in the embodiments of this application;

[0031] Figure 24 This is a circuit schematic diagram of the main control module provided in an embodiment of this application;

[0032] Figure 25 This is a circuit diagram of the motor control circuit provided in the embodiments of this application;

[0033] Figure 26 This is a circuit diagram of the battery voltage detection circuit provided in the embodiments of this application;

[0034] Figure 27 This is a circuit diagram of the insertion wake-up circuit provided in the embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] The equipment body 1, the first main body 10, the first main body shell 11, the first main body connecting part 12, the first connecting recess 121, and the abutment structure 122;

[0037] Second body 20, rotating part 21, second body connecting part 22, second connecting recess 221, base 23;

[0038] Power transmission device 30, input shaft 31, output shaft 32, elastic limiting component 33;

[0039] Input connection part 301, output connection part 302, intermediate support part 303, cross connection structure 304;

[0040] Input connection 305, output connection 306, ring gear 307, input bevel gear 308, output bevel gear 309;

[0041] Cleaning component 40; drive unit 50;

[0042] Angle locking device 60, angle locking component 61, protrusion 62, circular cover 63, press-lock component 64, trigger component 641, clamping component 642, elastic reset component 65;

[0043] Locking component end face 611, locking component side wall 612, snap-fit ​​part 613;

[0044] First connector 71, second connector 72, abutting recess 721, locking member 73, abutting component 731, locking elastic component 732, unlocking component 74, pressing cover 741, engaging component 742, limiting component 743, elastic ejection component 75, pop-out top cover 751, pop-out spring 752.

[0045] Socket 711, first wall surface 712, second wall surface 713, socket end face 714, socket side wall 715, socket housing 711a, bottom cover 711b;

[0046] Length adjustment device 80, sleeve 81, inner rod 82, limiting part 83;

[0047] Interactive device 90, start button 91, indicator light 92. Detailed Implementation

[0048] The present application will now be described in detail with reference to specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present application.

[0049] It should be noted that, unless otherwise expressly specified and limited, the terms "center," "longitudinal," "lateral," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., used in this specification to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. The terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features; thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more; and "and / or" includes any and all combinations of one or more of the associated listed items. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application. Figure 2 This demonstrates what happens after part of the cleaning equipment's housing structure has been removed. For example... Figure 1 and Figure 2 As shown, the cleaning device includes: a first body 10, a second body 20, a power transmission device 30, and a cleaning component 40.

[0052] The first main body 10 is the main structure of the cleaning equipment. It has one or more mounting positions inside to accommodate various functional modules included in the cleaning equipment (e.g., a drive device 50 for outputting torque).

[0053] The drive unit 50 is an actuator capable of converting stored energy into mechanical motion. It generates and outputs a set torque according to a control signal, providing the necessary power for the rotation of the cleaning components.

[0054] Depending on the actual needs, the drive unit 50 can be composed of any suitable type of mechanism, including a motor, reduction gear set, bearing support structure, and sealing protection structure. One or more of these components can be omitted or replaced, as long as the usage requirements are met and appropriate torque is provided.

[0055] The second main body 20 is a structural part connected to the cleaning component 40. It is rotatably connected to the first main body 10 and has a certain degree of freedom of movement. For example... Figure 8 and Figure 9 As shown, by changing the relative angle between the first body 10 and the second body 20, the angle of the cleaning component can be adjusted to adapt it to different usage scenarios.

[0056] Specifically, such as Figure 2 As shown, the second main body 20 includes a rotating part 21 that rotates about a first axis. The cleaning component 40 is fixed to the rotating part 21 and rotates with the rotating part 21 to complete the cleaning task.

[0057] The power transmission device 30 is a transmission mechanism used to realize torque transmission between the first main body 10 and the second main body 20. The input shaft 31 is connected to the output end of the drive device 50, and the output shaft 32 is connected to the rotating part 21.

[0058] In this application, the term "non-coaxial transmission mechanism" is used to refer to a transmission mechanism in which the input shaft 31 and the output shaft 32 can form any angle within a specific angular range, and can ensure stable torque transmission within that specific angular range.

[0059] By using a non-coaxial transmission mechanism as the power transmission device 30, it can adapt to the relative angle changes between the second main body 20 and the first main body 10. It can maintain continuous and stable power transmission when the relative positions of the input shaft 31 and the output shaft 32 change, smoothly drive the rotating part 21 to rotate, and then drive the cleaning part 40 to rotate at a set speed.

[0060] In some embodiments, such as Figure 4 As shown, the first body 10 includes a first body shell 11 and a first body connecting portion 12. The second body 20 also includes a second body connecting portion 22.

[0061] The first main body shell 11 is the shell structure of the first main body. The drive device 50 is housed and fixed inside the first main body shell 11.

[0062] The first main body connecting part 12 is a connecting structure formed at one end of the first main body shell 11. It cooperates with the second main body connecting part 22 to realize the rotational connection between the first main body 10 and the second main body 20, so that the second main body 20 can rotate relative to the first main body 10 about the second axis direction y.

[0063] The second main body connecting portion 22 also has a base 23 for supporting the rotating portion 21. The base is a structure that extends a certain length along the first axis. The rotating portion 21 is located at the base of the second main body connecting portion 22 and is rotatably connected to the second main body connecting portion 22 by a rotating structure such as a bearing, so that the rotating portion 21 can rotate about the first axis x relative to the entire second main body connecting portion 22.

[0064] For example, please continue reading Figure 4 The first main body 10 is formed by the first component 10a and the second component 10b being joined together along the parting surface. Similarly, the second main body connecting part 22 is also formed by the third component 22a and the fourth component 22b being joined together along the parting surface.

[0065] In the actual assembly process, the rotating part 21 is first placed between the third component 22a and the fourth component 22b. Then, the third component 22a and the fourth component 22b are joined together along the parting surface of the second main body connecting part 22 to form the second main body connecting part 22, which is roughly cylindrical.

[0066] Subsequently, the second main body connecting part 22 is placed between the first component 10a and the second component 10b, at a position corresponding to the first main body connecting part 12. Then, the third component 22a and the fourth component 22b are joined together along the parting surface of the first main body 10 to form a complete first main body 10. At this time, the outer wall surface of the second main body connecting part 22 abuts against the inner wall of the first main body connecting part 12, forming a rotatable connection.

[0067] It should be noted that the aforementioned assembly process is merely an illustrative demonstration of how to achieve the rotational connection between the first main body connecting part 12 and the second main body connecting part 22, and is not intended to limit the specific assembly process. Depending on the actual needs, any other suitable type of assembly method or component assembly sequence may be used.

[0068] Specifically, in addition to the aforementioned method of forming a rotatable connection by having the outer wall of the second main body connecting part 22, which has an outer contour that is roughly cylindrical, abut against the inner wall of the first main body connecting part 12, so that it is housed in the cylindrical space formed inside the first main body connecting part 12, the first main body connecting part 12 and the second main body connecting part 22 can also use other types of rotatable connection methods, such as the method of setting a rotating shaft.

[0069] To ensure that the relative angle between the first body 10 and the second body 20 does not change arbitrarily during use, in some embodiments, such as Figure 5 and Figure 6 As shown, the cleaning device also includes an angle locking device 60.

[0070] The angle locking device 60 is disposed between the first main body connecting part 12 and the second main body connecting part 22, and is used to restrict the first main body connecting part 12 from rotating relative to the second main body connecting part 22 about the second axis direction y.

[0071] Specifically, the angle locking device 60 is a movable mechanism capable of switching between a locked state and an unlocked state. It achieves this switching by moving to different positions along the second axis direction y.

[0072] like Figure 5 As shown, in the unlocked state, the angle locking device 60 moves to the unlocked position along the second axis direction y, disengaging from the first main body connecting part 12. The rotational constraint between the angle locking device 60 and the first main body connecting part 12 is released, allowing the first main body connecting part 12 to rotate about the second axis direction y relative to the second main body connecting part 22.

[0073] like Figure 6 As shown, in the locked state, the angle locking device 60 moves in the opposite direction along the second axis y to the locked position. At this time, the angle locking device 60 simultaneously forms a rotational constraint with the first main body connecting part 12 and the second main body connecting part 22, preventing relative rotation between the first main body connecting part 12 and the second main body connecting part 22.

[0074] The angle locking device 60 can be configured according to the actual needs (e.g., the specific way in which the first main body connecting part 12 and the second main body connecting part 22 are rotatably connected) to meet the functions required by the aforementioned angle locking device 60.

[0075] The following description uses specific examples of one or more angle locking devices 60 for illustration.

[0076] In some embodiments, please continue reading Figure 4 In the second axial direction y, the first main body connecting part is provided with a first through hole R1, and the second main body connecting part 22 is provided with a second accommodating space R2.

[0077] The angle locking device 60 is inserted into the second receiving space R2 through the first through hole R1 in the form of a pin. Thus, when the angle locking device 60 moves along the second axis direction y towards the second main body connection portion until it disengages from the first main body connection portion 12, the rotational constraint between it and the first main body connection portion 12 is released, and it is in the unlocked state.

[0078] Conversely, when the angle locking device 60 moves along the second axis direction y towards the direction close to the first main body connection part 12 to re-establish a physical connection with the first main body connection part 12, the angle locking device 60 can simultaneously form a rotational constraint with the first main body connection part 12 and the second main body connection part 22, and switch to the locked state.

[0079] The rotational constraint between the angle locking device 60 and the first main body connecting part 12 or the second main body connecting part 22 can be achieved by cooperating with a variety of different connecting components.

[0080] For example, the rotational constraint is formed by a plurality of protrusions arranged around the second axis in the y-direction and a plurality of matching grooves. The rotational constraint is formed when the protrusions are inserted into the corresponding grooves, and is released when the protrusions disengage from the grooves.

[0081] For ease of explanation, the protrusions will be referred to as "first connecting members" and the matching grooves will be referred to as "second connecting members".

[0082] For example, Figures 4 to 6 The image shows a scenario where the first connecting member is installed in the angle locking device, and the first main body connecting part and the second main body connecting part are both equipped with second connecting members.

[0083] In other embodiments, the arrangement of the first connecting member and the second connecting member can be replaced, with the second connecting member provided on the angle locking device, and the first connecting member provided on the first main body connecting part and the second main body connecting part.

[0084] In some embodiments, please continue reading Figure 4 The angle locking device 60 includes: an angle locking component 61, a pressing locking component 64, and an elastic reset component 65.

[0085] The angle locking component 61 is the main moving part of the entire angle locking device. It can reciprocate between the unlocked position and the locked position along the second axis direction y.

[0086] On the outer surface of the angle locking component 61, a plurality of protrusions 62 arranged circumferentially around the second axis direction y are provided as the first connecting member.

[0087] Correspondingly, the first main body connecting part 12 is provided with a plurality of first connecting grooves 121 as second connecting members, and the second main body connecting part 22 is provided with a plurality of second connecting grooves 221 as second connecting members.

[0088] When the angle locking component 61 moves to the locked position, the protrusion 62 simultaneously engages with the first connecting groove 121 and the second connecting groove 221. The first body 10 and the second body 20 are restricted from relative rotation by the angle locking component 61, and the angle locking device 60 is in a locked state (e.g., Figure 6 (As shown).

[0089] When the angle locking component 61 moves to the unlocked position, the protrusion 62 will disengage from the first connecting recess 121 and embed itself only in the second connecting recess 221 (as shown in the image). Figure 5 As shown), the relative rotation between the first body 10 and the second body 20 is not restricted, and the angle locking device 60 is in the unlocked state.

[0090] Specifically, at least a portion of the angle locking component 61 is located on the outer surface of the cleaning device for the user to apply an operation to drive the angle locking device 60 to move along the second axis direction y.

[0091] Depending on the needs of actual use, the structure of the angle locking component 61 located on the outer surface of the cleaning equipment can have any suitable shape or size. For example, as Figure 4 As shown, a circular cover 63 is located on the surface of the cleaning equipment.

[0092] The press-locking component 64 is a structural component used to automatically lock the angle locking device. It features press-to-unlock capability and includes at least one trigger 641 and a clamping component 642. When the trigger 641 is pressed for the first time, the clamping component 642 switches to a clamping state and remains there; when the trigger 641 is pressed again, the clamping component 642 disengages from the clamping state and switches to a released state.

[0093] For example, Figure 8 This is a schematic diagram illustrating the state switching of a typical push-lock component 64. (Example) Figure 8 As shown, the press-lock component 64 is provided with a guide rail, allowing the slider to move along a set trajectory. The slider and the trigger component 641 are connected by a connector, forming a linkage relationship. The connector is also rotatably connected to the clamping component 642, allowing the clamping component 642 to switch between a clamping state and a released state as the position of the slider changes.

[0094] When the trigger 641 is pressed for the first time, the slider moves downward from the starting position 1 of the guide rail via the connecting member. Subsequently, under the action of the spring, the slider is locked at position 2. At this time, the clamping member 642 is retracted and in the clamping state.

[0095] When the trigger 641 is pressed again, it causes the slider to move past position 2 and to position 3. Then, under the action of the spring, it returns to position 1 along the guide rail. At this time, the clamp 642 returns to the released state.

[0096] based on Figure 8 The push-lock component 64 shown operates on the same principle, and other different types of push-lock components 64 can also be used, without limitation. Figure 8 As shown. The specific adjustments and replacements are well known to those skilled in the art and are not specifically limited here.

[0097] The elastic reset component 65 is an elastic structure (e.g., a compression spring) disposed inside the angle locking component 61. It has the ability to elastically deform and can deform and store elastic potential energy when the position of the angle locking component 61 changes, thereby tending to recover to the initial state by itself. When the external force is removed, it drives the angle locking component 61 to reset to the locked position.

[0098] In some embodiments, such as Figure 4 As shown, the pressing locking component 64 is fixed to the locking mounting position Set of the second main body connecting part 22. In the unlocked state, the protrusion 62 of the angle locking component 61 is located only in the second connecting recess 221.

[0099] In other embodiments, the press-locking member 64 may also be provided on the first main body connecting portion 21. Accordingly, in the unlocked state, the protrusion 62 of the angle locking member 61 is located only in the first connecting recess 121.

[0100] In actual use, when the user applies an operation to the angle locking component 61 (for example, pressing the circular cover 63), the angle locking component 61 moves to the unlocked position along the second axis direction y. The protrusion 62 disengages from the first connecting recess 121 and is only located in the second connecting recess 221. At the same time, the angle locking component 61 also applies an initial press to the pressing locking component 64, so that the pressing locking component 64 engages with the angle locking component 61, keeping the angle locking component 61 in the unlocked position.

[0101] As the user continues to apply an operation to the angle locking member 61 (e.g., continuing to press on the circular cover 63), the angle locking member 61 continues to move, pressing the press locking member 64 again. At this time, the press locking member 64 switches to the released state, no longer restricting the movement of the angle locking member 61.

[0102] As the pressing locking component 64 releases the angle locking component 61, the elastic reset component 65 tends to return to its initial state, pushing the angle locking component 61 back to the locked position, and the protrusion 62 re-enters the first connecting recess 121, switching the angle locking device to the locked state.

[0103] Specifically, such as Figure 4 and Figure 6 As shown, the first main body connecting portion 12 is also provided with an abutment structure 122. When the angle locking member 61 is driven to the locked position by the elastic reset member 65, the abutment structure 122 abuts against at least a portion of the angle locking member 61, so that the angle locking member 61 can remain in the locked position and will not come out of the first main body connecting portion 12.

[0104] For example, the abutment structure 122 is a boss provided at the top of the first connecting recess. When the angle locking member 61 moves to the locked position, it abuts against the protrusion 62, restricting the angle locking member 61 from moving further outward.

[0105] In some embodiments, in applications such as Figure 8 In the case of the pressing and locking member 64 shown, such as Figure 7 As shown, the angle locking component 61 includes: a locking component end face 611, a locking component side wall 612, and a snap-fit ​​portion 613.

[0106] The locking component sidewall 612 extends for a specific length from the circumferential edge of the locking component end face 611 along the rotation axis y. The locking component sidewall 612 and the locking component end face 611 together define the internal space of the angle locking component 61.

[0107] The latching part 613 is a structure used in conjunction with the pressing locking member 64. It is provided on the end face 611 of the locking member and located within the internal space enclosed by the side wall 613 of the locking member.

[0108] In practical applications, when the angle locking component 61 moves with the angle unlocking component 63, the top of the locking part 613 presses to trigger the trigger of the locking component 64. At this time, the clamping part 642 of the locking component 64 clamps and fixes the locking part 613, so that the position of the angle locking component 61 is maintained and the angle locking device can be maintained in the unlocked state.

[0109] As the angle locking component 61 moves further with the angle unlocking component 63, the top of the locking part 613 continues to press and trigger the trigger of the locking component 64. At this time, the clamping member 641 of the locking component 64 releases the locking part 613, disengaging the connection with the locking part 613. Under the action of the elastic reset component 65, the angle locking component 61 resets to the initial position where the protrusion 62 enters the first connection recess 121, and the angle locking device switches back to the locked state.

[0110] In some embodiments, by appropriately setting the extension direction of the connecting recess and protrusion, a guiding effect can also be provided to guide the angle locking member 61 to move along the rotation axis y.

[0111] Please continue reading. Figure 5 and Figure 6 The aforementioned first connecting recess 121 and second connecting recess 221 are both grooves extending along the rotation axis y, having approximately the same width. The protrusion 62 located on the surface of the angle locking member 61 has a size and shape adapted to either the second connecting recess 221 or the first connecting recess 121.

[0112] Therefore, the first connecting recess 121 and the second connecting recess 221 can act as guide grooves, cooperating with the protrusion 62 embedded therein to guide the angle locking component 61 to move along the second axis direction y.

[0113] The aforementioned non-coaxial transmission mechanism can be implemented in various ways. In some embodiments, such as... Figure 2 As shown, the power transmission device 30 includes: an input connection part 301, an output connection part 302, and an intermediate support part 303.

[0114] One end of the input connection portion 301 forms an input shaft 31, which is connected to the output end of the drive device. One end of the output connection portion 302 forms an output shaft 32, which is connected to the rotating portion 21. The two ends of the intermediate support portion 303 are rotatably connected to the input connection portion 301 and the output connection portion 302 through two cross-shaped connecting structures 304, respectively.

[0115] Thus, the two cross-connecting structures 304 form two rotation axes with different included angles through the intermediate support part 303, which can accommodate the angular deflection that occurs between the input shaft 31 and the output shaft 32.

[0116] When the relative angle between the first body 10 and the second body 20 changes, the torque output by the drive device can still be transmitted to the rotating part 21, driving the cleaning component 40 to rotate.

[0117] Figure 2The power transmission device 30 shown has a certain degree of freedom of movement. When the drive device of the cleaning equipment is not activated and the equipment is stationary, it is easy for it to move irregularly as the position of the cleaning equipment changes, producing a collision sound.

[0118] In some embodiments, in order to limit the irregular movement of the power transmission device 30 in a stationary state and avoid emitting unwanted sounds, such as... Figure 12 As shown, the power transmission device also includes an elastic limiting member 33.

[0119] The elastic limiting member 33 is an elastic member capable of storing elastic potential energy and having a tendency to return to its initial state. One end of it is fixed to the rotating part 21, and the other end is fixed to the output connection part 302. It can apply a force to the power transmission device 30 to keep it in a fixed relative position and prevent irregular movement from occurring.

[0120] Specifically, the elastic limiting component 33 is a spring in a stretched state. The rotating part 21 provides a pin H1 as a fixed mounting position, and the end of the output connection part 302 forms a fixed through hole h2. One end of the stretched spring hooks onto the pin H1, and the other end hooks onto the fixed through hole H2, thereby pulling the power transmission device 30 toward the rotating part 21.

[0121] In other embodiments, the non-coaxial transmission mechanism can also be implemented based on gear meshing. For example... Figure 3 As shown, the power transmission device 30 includes: an input connection 305, an output connection 306, and an annular gear 307.

[0122] One end of the input connection 305 forms an input shaft 31, which is connected to the torque output end of the drive device. The other end of the input connection is an input bevel gear 308. One end of the output connection 306 forms an output shaft 32, and the other end of the output connection 306 is configured as an output bevel gear 309. The annular gear disk 307 is arranged perpendicular to the axis of rotation. Both the input bevel gear 308 and the output bevel gear 309 mesh with the annular gear disk 308.

[0123] Thus, the engagement between the ring gear 307 and the input bevel gear 308, and the engagement between the ring gear 307 and the output bevel gear 309, respectively form two axes of rotation. Even if the included angle between the two axes of rotation changes, torque can be transmitted through the ring gear 307, thereby adapting to the angular deflection that occurs between the input shaft 31 and the output shaft 32.

[0124] The following combination Figure 9 and Figure 10 Describe in detail the angular change process between the first body 10 and the second body 20 of the cleaning equipment. Figure 9As shown, the relative angle between the first body 10 and the second body 20 is approximately 90°. At this time, the cleaning brush surface of the cleaning component 40 is basically parallel to the handle-shaped first body 10, allowing the user to easily hold the first body 10 and clean it close to the vertical wall surface.

[0125] When the floor needs to be cleaned, such as Figure 10 As shown, the user can change the relative angle between the first body 10 and the second body 20 to make the relative angle greater than 90°. At this time, the cleaning brush surface of the cleaning component 40 forms a certain angle with the handle-shaped first body 10, allowing the user to easily hold the first body 10 and clean it in close contact with the ground.

[0126] To meet the practical needs of different cleaning scenarios, cleaning equipment is equipped with a variety of different cleaning components for users to choose from. For example, Figure 11 As shown, the cleaning component includes: a flat brush head 2A suitable for cleaning large, flat surfaces; a corner brush 2B with a tapered design, specifically designed for cleaning hard-to-reach areas such as crevices; a dome brush 2C with a hemispherical design, used for cleaning irregular surfaces or curved objects; a cleaning pad holder 2D for mounting various cleaning pads, serving as a universal base for different cleaning pads; and a dusting brush 2E with a fine needle-like bristle structure, suitable for cleaning precision equipment (such as keyboards and electronic devices).

[0127] Users can select one of the cleaning components as needed, fix it to the rotating part 21 of the device body 1, and then perform cleaning operations. In this application, the device body refers to a structural assembly composed of components other than the cleaning components, such as the aforementioned first body 10 and second body 20.

[0128] When the actual usage scenario changes, the cleaning components also need to be replaced accordingly. In some embodiments, by providing a connection structure with quick disassembly and assembly between the cleaning components and the device body, the user experience can be effectively improved.

[0129] like Figure 12 and Figure 14 As shown, the connection structure includes: a first connector 71, a second connector 72, a locking member 73, and an unlocking member 74.

[0130] The first connector 71 forms a locking space R3. The second connector 72 has a matching size and shape and is housed inside the locking space R3.

[0131] The locking member 73 is a component that protrudes from the locking space R3 in the default state. In this application, "default state" is used to indicate the state in which the locking member 73 is not subjected to other external forces.

[0132] The protruding locking member 73 abuts against the second connecting member 72 that has entered the locking space R3, preventing the second connecting member 72 from disengaging from the locking space R3 and restricting the second connecting member 72 from separating from the first connecting member 71, thus achieving a reliable fixed connection between the two.

[0133] The unlocking member 74 is a component that engages with the locking member 73. It can drive the locking member 73 out of the locking space R3, so that the locking member 73 is no longer in contact with the second connecting member 72. Specifically, at least a portion of the unlocking member 74 is located on the outer surface of the cleaning device for easy operation by the user.

[0134] When the user applies an unlocking operation (e.g., a pressing operation) to the unlocking member 74, the movement of the unlocking member 74 correspondingly causes the locking member 73 to exit the locking space R3. As the locking member 73 exits the locking space R3, the second connecting member 72 can smoothly disengage from the locking space R3, releasing its fixed connection with the first connecting member 71.

[0135] Based on the aforementioned assembly method between the first connector 71 and the second connector 72, by setting the first connector 71 and the second connector 72 after the equipment body and the cleaning component respectively, the cleaning component can be quickly disassembled and assembled using the first connector 71 and the second connector 72.

[0136] For ease of description, this application describes a scenario where the first connector is disposed on the device body and the second connector is disposed on the cleaning component. Alternatively, the positions of the first connector 71 and the second connector 72 can be interchanged (i.e., the first connector 71 is disposed on the cleaning component and the second connector 72 is disposed on the device body) to achieve the same effect of quick disassembly and assembly.

[0137] In some embodiments, please continue reading Figure 12 The connection structure 70 also includes a resilient ejection component 75.

[0138] The elastic ejection component 75 is an elastic component capable of storing elastic potential energy through deformation. When the second connector 72 is housed in the locking space R3, it is in a deformed state and tends to return to its initial state.

[0139] Therefore, when the second connector 72 is no longer restricted by the locking member 73, the elastic ejection member 75 will automatically return to its initial state and apply force to drive the first connector 71 and the second connector 72 away from each other, so as to achieve the effect of automatic ejection of the cleaning member 40.

[0140] For details, please continue reading. Figure 12 The elastic ejection component 75 includes an ejection top cover 751 and an ejection spring 752.

[0141] The pop-out top cover 751 is movably mounted on the second connector 72. The pop-out spring 752 is located between the pop-out top cover 751 and the second connector 72.

[0142] When the second connector 72 is inserted into the locking space R3, the first connector 71 abuts against the pop-out top cover 751, squeezing the pop-out top cover 751 to compress the pop-out spring 752.

[0143] As the locking member 73 releases its lock on the second connector 72, the compressed pop-out spring 752 returns to its initial state, and applies a force to the first connector 71 through the pop-out top cover 751, automatically pushing the second connector 72 out of the first connector 71.

[0144] It should be noted that, Figure 12 The example illustrates a scenario where the elastic ejector 75 is disposed on the second connector 72. Based on the cooperative relationship between the first connector 71 and the second connector 72, the same effect can be achieved by disposing the elastic ejector 75 on the first connector 71, driving the cleaning component 40 to automatically eject.

[0145] In some embodiments, the device body, which serves as a handle for the user to hold, is also provided with a length adjustment device 80, so that the length of the device body can be adjusted within a certain range to meet different usage needs.

[0146] like Figure 17 As shown, the length adjustment device 80 includes: a first part 10c, a second part 10d, a sleeve 81, and an inner rod 82.

[0147] The sleeve 81 has an internal thread on its inner wall, and the inner rod 82, which is fixedly mounted in the first part 10c, has an external thread on its surface and is fixedly mounted in the second part 10d. The inner rod 82 and the sleeve 81 are connected by threads.

[0148] Therefore, when the user rotates the second part 10d, the inner rod 82 can be axially displaced relative to the sleeve 81, causing the second part 10d to move away from or closer to the first part 10c, thereby adjusting the total length of the entire first body 10.

[0149] This method of adjusting the length via threads ensures that the position of the second component 10d remains stable after length adjustment.

[0150] Specifically, a protruding limiting part 83 is provided at the end of the inner rod 82. When the inner rod 82 rotates to its limit position, the limiting part 83 abuts against the end of the sleeve 81 to prevent the inner rod 82 from disengaging from the sleeve 81.

[0151] In some embodiments, please continue reading Figure 1 The length adjustment device 80 is an extension component that is independently disposed relative to the first main body 10. The length adjustment device 80 is fixed to the end of the first main body 10 by plug-in fixing or other suitable fixing connection methods to provide a greater rod length.

[0152] The following description, in conjunction with the accompanying drawings, details the specific structural implementation of the first connector 71, the second connector 72, the locking member 73, and the unlocking member 74.

[0153] In some embodiments, such as Figure 14 As shown, the first connector 71 includes: a plug-in socket 711, a first wall surface 712, and a second wall surface 713.

[0154] The connector 711 is a columnar structure composed of a connector end face 714 and a connector sidewall 715. The connector sidewall 715 extends to a specific length along the circumferential edge of the connector end face 714. Exemplarily, the connector 711 is generally cylindrical.

[0155] The first wall surface 712 is another continuous wall surface provided on the end face 714 of the connector. It cooperates with the end face 714 of the connector to form a locking space R3 for accommodating the second connector 72. A notch R4 is provided on the first wall surface 712 for the locking member 73 to extend out.

[0156] The second wall surface 713 is formed and disposed between the first wall surface 712 and the side wall 715 of the connector. It forms a guide channel adapted to the locking member 73. The locking member 73 is installed in the guide channel, moves along the extension direction of the guide channel, protrudes into the locking space R3 through the notch R4, or exits the locking space R3.

[0157] Specifically, such as Figure 13 As shown, the connector 711 includes a connector housing 711a and a bottom cover 711b. The bottom cover 711b is fastened to the open end of the connector housing 711a by means of a snap-fit ​​or other fixed connection, forming a complete connector 711.

[0158] In some embodiments, please continue reading Figure 12 and Figure 13 The locking member 73 includes: an abutment member 731 and a locking elastic member 732.

[0159] The abutment member 731 is disposed within the guide channel. It has a width dimension adapted to the guide channel and can enter or exit the locking space along the guide channel via a notch.

[0160] For ease of description, the position where the abutting part 731 protrudes out of the locking space R3 will be referred to as the "first position", and the position where the abutting part 731 is completely withdrawn from the locking space R3 will be referred to as the "second position".

[0161] The locking elastic element 732 is also an elastic component. It is connected to the abutment member 731, and when the abutment member 731 is subjected to an external force and moves away from the first position, it deforms and stores the deformation as elastic potential energy.

[0162] For example, the locking elastic element 732 is a compression spring that tends to return to its initial uncompressed state and can generate an elastic force that drives the abutment member 731 to move to the first position.

[0163] In some embodiments, a first compression contact surface is formed between the end of the abutment member 731 and the end of the second connector 72, so that the abutment member 731 moves to a second position under the compression of the second connector 72.

[0164] In this application, "extrusion contact surface" refers to a contact surface formed between two components in which at least a portion is inclined relative to the insertion direction of one of the components. Such an extrusion contact surface enables at least a portion of the force that pushes one component in to be converted into a force that drives the other component to move perpendicular to the insertion direction.

[0165] For example, the portion of the abutment member 731 protruding from the locking space is wedge-shaped, and correspondingly, the end 722 of the second connector 72 is set as a slope. As the second connector 72 is inserted, the abutment member 741 forms an inclined first pressing contact surface with the end of the second connector 72, and under the pressing of the second connector 72, it exits the locking space R3.

[0166] In some embodiments, please continue reading Figure 13 The surface of the second connector 72 is provided with an abutment recess 721. The abutment recess 721 can be set to a suitable size and depth according to actual needs, and is not specifically limited here.

[0167] Therefore, when the second connector 72 moves to the position corresponding to the abutment recess 721 and the notch R4, the abutment member 731 automatically resets to the first position under the action of the locking elastic member 732, protruding out of the locking space R3.

[0168] A first abutting contact surface is formed between the abutting member 731 protruding from the locking space R3 and the abutting recess 721, which restricts the second connector 72 from disengaging from the locking space R3.

[0169] In this application, "abutting contact surface" refers to a contact surface formed between two components that forms an abutting relationship, such that one component restricts the movement of the other component in a specific direction.

[0170] In some embodiments, to provide a balanced locking force, it ensures that the cleaning components are reliably attached to the device body. For example... Figure 13 As shown, the locking members 73 are arranged in pairs (for example, two locking members are provided) and symmetrically arranged along the first or second direction. This symmetrical arrangement allows the locking members 73 to provide symmetrical forces to prevent the second connecting member 72 from disengaging from the locking space R3.

[0171] In other embodiments, such as Figure 15 As shown, the second connector 72 includes a first surface S1, a second surface S2, a third surface S3, and a fourth surface S4.

[0172] Among them, the first surface S1 and the third surface S3 are symmetrical surfaces in the first direction K1, and the second surface S2 and the fourth surface S4 are symmetrical surfaces in the second direction K2.

[0173] like Figure 16 As shown, abutment recesses 721 are provided on the first surface S1, the second surface S2, the third surface S3 and the fourth surface S4, so that when the second connector 72 is inserted into the locking space R3 in two different directions, the locking member 73 can form an abutment contact surface with the recesses 731.

[0174] In some embodiments, please continue reading Figure 13 and Figure 14 The unlocking component 74 includes a press cover 741 and an engagement component 742.

[0175] The pressing cover 741 covers the outside of the plug socket 711 and is a component that can move along the first axis direction x.

[0176] The connector 742 is disposed inside the press cover 741. Correspondingly, the connector end face 714 of the connector 711 has a first through hole H3. The connector 742 passes through the first through hole H3, passes through the connector 711, and forms a second pressing contact surface with the abutment member 731.

[0177] The press cap 741 and the abutment member 731 are linked by the second compression contact surface formed between the connector 742 and the abutment member 731.

[0178] To facilitate the description of the linkage between the pressing cover 741 and the abutting member 731, the third position is used to indicate the position of the pressing cover 741 when the abutting member 731 automatically resets to the first position, and the fourth position is used to indicate the position of the pressing cover 741 when the abutting member 731 is pushed to the second position.

[0179] To ensure that the press cap 741 does not dislodge from the connector 711, in some embodiments, please refer to [the relevant documentation / reference needed]. Figure 13 The unlocking component 74 also includes a limiting component 743. Correspondingly, the plug-in end face 714 is also provided with a second through hole H4.

[0180] The limiting member 743 is also a structural component located inside the press cover 741. It is located at a different position than the engaging member 742 and passes through the plug end face 714 via the second through hole H4.

[0181] The end of the limiting member 743 has a relatively enlarged protrusion that is at least larger than the second through hole H4. Thus, when the pressing cover 741 moves to the fourth position, the enlarged portion at the end of the limiting member 743 forms a second abutting contact surface with the end face 714 of the plug, preventing the pressing cover 741 from moving further.

[0182] For example, the end of the limiting member 743 is formed into a hook-shaped structure, and the corresponding position of the plug end face 714 is provided with a recess that matches the hook-shaped structure, so that a second abutting contact surface is formed between the two.

[0183] In some embodiments, the cleaning device may also be equipped with one or more interactive devices 90 to help users understand the current operating status of the cleaning device and output corresponding operation instructions.

[0184] Please continue reading. Figure 1 The interactive device includes a start button 91 and several indicator lights 92.

[0185] The start button 91 is used to receive user commands and control the cleaning equipment to start and stop. The indicator light 92 indicates the equipment's status (on, running, faulty, or off) through different display states (such as constantly lit, flashing, or off).

[0186] The user can easily control the device's operating status by pressing the start button, while the different display states of the indicator lights can intuitively reflect the device's current operating status, allowing the user to make timely adjustments.

[0187] In other embodiments, the interactive device may also include a display. The display is an interactive device capable of visually displaying information such as the cleaning equipment's operating mode, runtime, battery level, and speed setting, allowing the user to gain a more comprehensive understanding of the cleaning equipment's operating status.

[0188] Furthermore, the display can be linked with the control system to show fault codes or error messages when equipment malfunctions, helping users quickly identify problems. In addition, the display can show equipment maintenance reminders, such as the replacement cycle for cleaning parts and maintenance schedules, facilitating routine maintenance and upkeep.

[0189] In some embodiments, the cleaning device uses an electric motor as a power source and has a battery pack for storing electrical energy inside the main body of the device. The electric motor converts the electrical energy stored in the battery pack into mechanical energy to drive the cleaning components to rotate.

[0190] Specifically, the battery pack used in the cleaning equipment can consist of multiple rechargeable batteries connected in series, parallel, or a combination of both. Correspondingly, the main body of the equipment is also equipped with a charging interface that can connect to an external power source to charge the battery pack.

[0191] Figure 18 A functional block diagram of the electronic system of the cleaning equipment provided in an embodiment of this application. (See diagram below.) Figure 18 As shown, the electronic system of the cleaning equipment includes: a battery pack 910, a charging module 920, a charge / discharge management module 930, a main control module 940, and a motor 950.

[0192] The charging module 920 is a functional circuit that works in conjunction with the charging interface. When the charging interface is connected to an external power source (e.g., a power adapter is plugged in), it provides the first voltage of the charging interface to the charge / discharge management module 930.

[0193] Depending on the actual needs, the charging interface can be any suitable type of interface and provide a specific initial voltage. For example, the charging interface is a Type-C interface that provides an initial voltage of 5V.

[0194] The charge / discharge management module 930 is a functional circuit used to detect the operating status of the battery pack 910, control the discharge of the battery pack 910, and charge the battery pack 910. It has voltage conversion capability, enabling it to convert a first voltage into a suitable charging voltage to charge the battery pack 910 when the charging interface is connected to an external power source.

[0195] In addition, by detecting one or more state parameters of the battery pack 910 during charging and discharging, the charge and discharge management module 930 can also provide one or more protection functions such as overcharge protection and temperature protection to ensure the safe operation of the battery pack 910.

[0196] The main control module 940 is the control core of the cleaning equipment. It can collect operation commands issued by the user through one or more of the aforementioned interactive devices and control the cleaning equipment to perform corresponding operations (e.g., controlling the motor 950 to start or stop). It can also detect and collect the operating status of the motor 950, control one or more of the aforementioned interactive devices, display and provide feedback on the current status information of the cleaning equipment to the user (e.g., the remaining power of the battery pack, the operating status of the motor), and provide one or more protection functions such as motor short-circuit protection, motor operating temperature protection, and battery pack discharge protection.

[0197] In addition to the power connection line 941 used for transmitting electrical energy, a signal connection line for transmitting information is also provided between the main control module 940 and the charge / discharge management module 930 to realize communication connection between the two functional circuits.

[0198] Specifically, the signal connection line includes a wake-up signal connection line 942 and a status detection connection line 943. The wake-up signal connection line 942 is used to transmit a detection signal indicating whether the charging interface is connected to an external power source. The status detection connection line 943 is used to transmit a detection signal indicating whether the battery pack is in a charging state.

[0199] When the charging interface is connected to an external power source (e.g., when a power adapter is plugged in), the charging and discharging management module 930 can generate a corresponding insertion detection signal and transmit it to the main control module 940 through the wake-up signal connection line 942.

[0200] The charge / discharge management module 930 can also generate different status detection signals based on whether the battery pack is currently in a charging or discharging state, and transmit them to the main control module 940 through the status detection connection line 943, so that the main control module 940 can identify and determine the current state of the battery pack 910.

[0201] To fully describe the inventive concept of this application, the following is combined with... Figures 19 to 27 The specific circuit implementation of the charge / discharge management module 930 and the main control module 940 is described in detail. For example, the charging interface is a Type-C interface, and the battery pack 910 consists of three lithium-ion batteries connected in series.

[0202] Figure 19 This is a circuit diagram illustrating the voltage conversion function of the charge / discharge management module 930 in this embodiment of the application. Figure 19As shown, the circuit components used by the charge / discharge management module 930 to realize the voltage conversion function include: a first resistor R1, a second resistor R2, a transient suppression diode TVS, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first inductor L1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and a boost-type charging management circuit U1.

[0203] J1 represents the charging interface. Pins 2 and 5 are VBUS terminals, used to provide 5V voltage. Pins 3 and 4 are CC1 and CC2 configuration terminals, respectively, used for Type-C protocol configuration. Pins 1 and 6 are GND terminals.

[0204] One end of the first resistor R1 is grounded, and the other end is connected to pin 3 of the charging interface J1. One end of the second resistor R2 is grounded, and the other end is connected to pin 4 of the charging interface J1.

[0205] The negative terminal of the transient voltage suppressor diode (TVS) is connected to pin 2, and the positive terminal of the TVS is connected to pin 6 of the charging interface J1. This provides electrostatic discharge protection and overvoltage protection to prevent sudden high voltage from entering and damaging the subsequent circuitry.

[0206] Pins 2 and 5 of the charging interface J1 are connected to form the power supply node VIN. When the power adapter is plugged into the charging interface, the power supply node VIN provides 5V voltage.

[0207] The boost-type charging management circuit U1 includes eight pins, labeled as pins 1 to 8. Pin 1 is the system voltage output terminal, used to provide a stable second voltage (e.g., 3.3V or 5V) for the electronic system. Pin 2 is the boost output terminal, capable of outputting a boosted charging voltage (e.g., 12.6V). Pin 3 is the charging voltage setting terminal, which adjusts the charging voltage of the boost output terminal by connecting a resistor of a specific value. Pin 4 is the temperature detection terminal. Pin 5 is the charging indicator output terminal, used to drive an indicator light to display the current charging status. Pin 6 is the voltage input terminal. Pin 7 is the boost switch driver terminal. Pin 8 is the switch node.

[0208] One end of the first capacitor C1 is grounded, and the other end of the first capacitor C1 is connected to the power supply node VIN. One end of the first inductor L1 is connected to the power supply node VIN, and the other end of the first inductor L1 is connected to pin 8 of the boost charging management circuit U1.

[0209] One end of the second capacitor C2 is connected to pin 8 of the boost charging management circuit U1, and the other end of the second capacitor C2 is connected to pin 7 of the boost charging management circuit U1. One end of the third capacitor C3 is grounded, and the other end of the third capacitor C3 is connected to pin 6 of the boost charging management circuit U1.

[0210] One end of the third resistor R3 is connected to the power supply node VIN, and the other end of the third resistor R3 is grounded. One end of the fourth resistor R4 is connected to the power supply node VIN, and the other end of the fourth resistor R4 is connected to pin 6 of the boost charging management circuit U1.

[0211] One end of the fifth resistor R5 is connected to pin 5 of the boost-type charging management circuit U1, and the other end of the fifth resistor R5 is connected to the first charging status detection terminal CHG_DET1.

[0212] One end of the fourth capacitor C4 is grounded, and the other end of the fourth capacitor C4 is connected to pin 1 of the boost charging management circuit U1. One end of the fifth capacitor C5 is grounded, and the other end of the fifth capacitor C5 is also connected to pin 1 of the boost charging management circuit U1.

[0213] Pin 2 of the boost charging management circuit U1 is connected to the positive terminal B+ of the battery pack. Pin 3 of the boost charging management circuit U1 is grounded through the sixth resistor R6, and pin 4 of the boost charging management circuit U1 is grounded through the seventh resistor R7. One end of the sixth capacitor C6 is connected to the positive terminal B+ of the battery pack, and the other end of the sixth capacitor C6 is grounded.

[0214] In actual operation, the MOS switch inside the boost-type charging management circuit U1 is connected to the first inductor L1 and the second capacitor C2 through pin 8 and pin 7, respectively, to form a boost circuit to boost the input voltage received at pin 6 (i.e., the first voltage from the power supply node VIN). The second voltage obtained after boost conversion is output from pin 2 of the boost-type charging management circuit U1 to charge the battery pack.

[0215] Pin 4 of the boost-type charging management circuit U1 monitors the current temperature of the battery pack. Charging stops when the charging temperature of battery 100 is abnormal. Pin 5 of the boost-type charging management circuit U1 outputs different indication signals according to the current charging state (for example, a high-level signal is output when charging is in progress, and a low-level signal is output when not charging).

[0216] Figure 20 This is a circuit diagram illustrating the battery detection and protection functions of the charge / discharge management module 930 in this embodiment of the application. Figure 20As shown, the circuit for battery detection and protection functions includes: battery protection chip U2, charging control MOSFET Q1, eighth resistor R8, ninth resistor R9, temperature-sensitive resistor NTC1, tenth resistor R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, first diode D1, seventh capacitor C7, eighth capacitor C8, ninth capacitor C9, and tenth capacitor C10.

[0217] The battery protection chip U2 has 10 pins, labeled pins 1 through 10. Pin 1 is used to detect the total voltage of the battery pack, pin 2 is used to control the conduction and cutoff of the first MOSFET Q1, pin 3 is used to output a discharge indication signal, pin 4 is the power input, pin 5 is the temperature detection pin, pin 6 is the circuit reference ground connection pin, and pins 7 through 9 are voltage detection pins for individual cells, used to detect the voltage of the three lithium-ion cells in the battery pack, respectively. Pin 10 is the power supply pin, connected to the DC voltage source VCC.

[0218] The gate of the first MOSFET Q1 is connected to pin 2 of the battery protection chip U2, the source of the first MOSFET Q1 is connected to the reference ground, and the drain of the first MOSFET Q1 is connected to the negative terminal B- of the battery pack.

[0219] Pin 1 of the battery protection chip U2 is connected to the negative terminal B- of the battery pack via resistor R8 (eighth resistor). Pin 2 of the battery protection chip U2 is also connected to the negative terminal B- of the battery pack via resistor R11 (eleventh resistor).

[0220] One end of the first thermistor NTC1 is connected to the negative terminal B- of the battery pack, and the other end of the first thermistor NTC1 is connected to pin 5 of the battery protection chip U2.

[0221] Pin 6 of battery protection chip U2 is connected to reference ground. Pin 7 of battery protection chip U2 is connected to reference ground via capacitor C7. Pin 8 of battery protection chip U2 is connected to reference ground via capacitor C8. Pin 9 of battery protection chip U2 is connected to reference ground via capacitor C9. Pin 10 of battery protection chip U2 is connected to reference ground via capacitor C10.

[0222] The negative terminal of the first diode D1 is connected to the positive terminal B+ of the battery pack, and the positive terminal of the first diode D1 is connected to the 10th pin of the battery protection chip U2 through the tenth resistor R10.

[0223] Pin 9 of the battery protection chip U2 is connected to the positive terminal B+ of the battery pack via resistor R11 (eleventh resistor). The positive terminal B2 of the second lithium-ion battery is connected to pin 8 of the battery protection chip U2 via resistor R12 (twelfth resistor), and the positive terminal B1 of the third lithium-ion battery is connected to pin 7 of the battery protection chip U2 via resistor R13 (thirteenth resistor).

[0224] Therefore, the battery protection chip U2 can detect the total voltage of the battery pack and the voltage of each individual lithium-ion battery. If the battery voltage is too high or too low, it controls the first MOSFET Q1 to disconnect.

[0225] Figures 21 to 23 This is a circuit diagram of the charge / discharge management module 930 generating detection signals according to an embodiment of this application. For ease of description, the three relatively independent detection signal generation circuits are respectively referred to as the "first signal generation circuit", the "second signal generation circuit" and the "third signal generation circuit".

[0226] like Figure 21 As shown, the first signal generation circuit includes: a second MOSFET Q2, a third MOSFET Q4, a first transistor Q3, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, and a twenty-first resistor R21.

[0227] In this configuration, the drain of the second MOSFET Q2 is connected to the positive terminal B+ of the battery pack via the fourteenth resistor R14. The gate of the second MOSFET Q2 is connected to its drain via the fifteenth resistor R15. The gate of the second MOSFET Q2 is connected to the collector of the first transistor Q3 via the sixteenth resistor R16.

[0228] The emitter of the first transistor Q3 is grounded, and the base of the first transistor Q3 is connected to the power supply node VIN through the seventeenth resistor R17. The base of the first transistor Q3 is also connected to the emitter of the first transistor Q3 through the eighteenth resistor R18.

[0229] The gate of the third MOSFET Q4 is connected to the source of the second MOSFET Q2 through the nineteenth resistor R19, and the wake-up signal terminal WAKE is located between the nineteenth resistor R19 and the source of the second MOSFET Q2.

[0230] The drain of the third MOSFET Q4 is connected to the detection signal terminal DS through the twenty-first resistor R21. The gate of the third MOSFET Q4 is also connected to the source of the third MOSFET Q4 through the twentieth resistor R20. The source of the third MOSFET Q4 is connected to the negative terminal B- of the battery pack.

[0231] In practical applications, as the power adapter is inserted, the power supply node VIN generates a high-level signal, controlling the first transistor Q3 to conduct. The conduction of the first transistor Q3 pulls down the gate voltage of the second MOSFET Q2, causing the second MOSFET Q2 to also conduct.

[0232] When the second MOSFET Q2 is turned on, the wake-up signal terminal WAKE generates a high-level signal and transmits it to the main control module 930 through the signal connection line, so that the main control module 930 can obtain the detection result that the power adapter has been inserted.

[0233] Additionally, when the second MOSFET Q2 is turned on, the third MOSFET Q4 will also be turned on, thereby pulling the level signal at the detection signal terminal DS low. The low-level signal at the detection signal terminal DS can also be transmitted to the main control module 930 through the signal connection line, indicating that the battery pack is in a charging state.

[0234] like Figure 22 As shown, the second signal generation circuit includes: the fourth MOSFET Q5, the twenty-second resistor R22, the twenty-third resistor R23, and the twenty-fourth resistor R24.

[0235] In this configuration, the source of the fourth MOSFET Q5 is connected to the negative terminal B- of the battery pack, and the gate of the fourth MOSFET Q5 is connected to pin 3 of the battery protection chip U2 through the twenty-second resistor R22. The gate of the fourth MOSFET Q5 is also connected to the source of the fourth MOSFET Q4 through the twenty-third resistor R23. The drain of the fourth MOSFET Q5 is connected to the detection signal terminal DS through the twenty-fourth resistor R24.

[0236] When the battery pack is charging, pin 3 of the battery protection chip U2 outputs a high-level signal. At this time, the fourth MOSFET Q5 is turned on, which also pulls the level signal of the detection signal terminal DS low, indicating that the battery pack is charging.

[0237] like Figure 23 As shown, the third signal generation circuit includes: the fifth MOS transistor Q6, the twenty-fifth resistor R25, the twenty-sixth resistor R26, and the twenty-seventh resistor R27.

[0238] In this circuit, the source of the fifth MOSFET Q6 is connected to the negative terminal B- of the battery pack, and the gate of the fifth MOSFET Q6 is connected to one end of the twenty-fifth resistor R25. The other end of the twenty-fifth resistor R25 forms the first charging state detection terminal CHG_DET1, which is connected to pin 5 of the boost charging management circuit U1. The gate of the fifth MOSFET Q6 is also connected to its source through the twenty-sixth resistor R26. The drain of the fifth MOSFET Q6 is connected to the detection signal terminal DS through the twenty-seventh resistor R27.

[0239] When the battery pack is charging, pin 5 of the boost-type charging management circuit U1 outputs a high-level signal. At this time, the fifth MOSFET Q6 is turned on, which also pulls the level signal at the detection signal terminal DS low, indicating that the battery pack is charging.

[0240] Figures 24 to 27 The circuit diagram of the main control module provided in the embodiments of this application is shown. It includes a main control chip U3 and several peripheral circuits used in conjunction with it.

[0241] like Figure 24 As shown, the main control chip U3 includes 24 pins, labeled pins 1 to 24. Pin 1 is the charging status detection pin, and pins 2 and 3 are status indication pins. Pin 4 is the reset input pin, used to receive external reset signals. Pin 5 is the switch detection pin. Pin 6 is the detection signal receiving pin. Pin 7 is connected to the negative terminal B- of the battery pack. Pin 8 is the data communication pin. Pin 9 is the power supply pin, connected to a stable second voltage VCC, which powers the main control chip U3. Pin 10 is the voltage output pin, capable of outputting a specific DC voltage (e.g., 5V) when the main control chip U3 is powered on or during startup. Pin 11 is the temperature detection input pin, used to detect motor temperature. Pin 12 is the battery voltage detection input pin. Pin 13 is the short circuit detection input pin. Pin 14 is the motor current detection input pin, used to detect the motor's operating current. Pins 15, 16, 17, and 18 are independent status indication pins. Pin 19 is the discharge control terminal, used to control battery discharge. Pins 20 and 21 are status indication terminals. Pin 22 is the data communication clock terminal. Pins 23 and 24 are also status indication terminals.

[0242] The following describes the pin functions of the main control chip U3 and the corresponding peripheral circuits based on the functions to be performed by the main control chip U3.

[0243] 1) Start-up and status display of cleaning equipment:

[0244] like Figure 24 As shown, one end of the start switch S1 is connected to the negative terminal B- of the battery pack, and the other end of the start switch S1 is connected to pin 5 of the main control chip U3. Pin 5 of the main control chip U3 is also connected to the DC voltage VCC through the first pull-up resistor Rv1. Pin 17 of the main control chip U3 is connected to the first LED indicator group.

[0245] When the device is off, the power switch S1 is open, and the voltage level signal on pin 5 of the main control chip U3 is pulled high by the first pull-up resistor. When the user performs a power-on operation on the cleaning device (e.g., touch or press the power button), the power switch S1 closes, pulling the voltage level signal on pin 5 of the main control chip U3 low, causing the main control chip U3 to detect the power-on operation.

[0246] Depending on the current operating status, pin 17 of the main control chip U3 outputs a high-level or low-level status indication signal to control the first LED indicator group to light up or turn off, thereby displaying the current operating status of the cleaning equipment to the user.

[0247] 2) Battery pack power display:

[0248] The surface of the cleaning equipment is equipped with a second LED indicator, a third LED light group, a fourth LED light group, a fifth LED light group, a sixth LED light group, a seventh LED light group, and an eighth LED light group arranged in sequence.

[0249] Pins 18, 19, 21, 23, 24, 2, and 3 of the main control chip U3 are connected to the second LED indicator, the third LED group, the fourth LED group, the fifth LED group, the sixth LED group, the seventh LED group, and the eighth LED group, respectively.

[0250] Based on the received remaining battery power, pins 18, 19, 21, 23, 24, 2, and 3 of the main control chip U3 independently control each LED group, displaying the current battery power to the user by adjusting the number of LED groups lit.

[0251] 3) Motor status detection and control:

[0252] like Figure 24 As shown, pin 10 of the main control chip U3 outputs a DC voltage (e.g., 5V) after power-on. The second thermistor NTC2 is located near the motor, and its two ends are connected to pins 10 and 11 of the main control chip U3, respectively.

[0253] The operating temperature of the motor changes the resistance of the second thermistor NTC2, which in turn changes the voltage on pin 11 of the main control chip U3. Therefore, the main control chip U3 detects the motor's operating temperature and performs the motor temperature protection function (stopping the motor when the temperature is too high).

[0254] like Figure 25As shown, the motor control circuit includes: the sixth MOSFET Q7, the twenty-eighth resistor R28, the twenty-ninth resistor R29, the thirtieth resistor R30, the second diode D2, the sampling resistor Rs, and the resistor R that forms the filter. L1 and capacitor C L1 .

[0255] The drain of the sixth MOSFET Q7 is connected to the motor P- terminal and to the positive terminal B+ of the battery pack via the second diode D2. The gate of the seventh MOSFET Q7 is connected to the motor control terminal DSG via the twenty-eighth resistor R28.

[0256] The gate of the sixth MOSFET Q7 is also connected to its source via the twenty-ninth resistor R29. The source of the sixth MOSFET Q7 is connected to the negative terminal B- of the battery pack via the sampling resistor Rs. Resistor R... L1 One end is connected to the source of the sixth MOSFET Q7, and the resistor R L1 The other end is connected to the current sampling terminal CUR_DET, and the resistor R L1 Also through capacitor C L1 Connect to the negative terminal B- of the battery pack. One end of the thirtieth resistor R30 is connected to the source of the sixth MOSFET Q7, and the other end of the thirtieth resistor R30 forms the short-circuit detection terminal SHORT.

[0257] Pin 19 of the main control chip U3 is connected to the motor control terminal DSG. When a high-level signal is output from pin 19, the sixth MOSFET Q7 is turned on, and the motor receives power. When a low-level signal is output from pin 19, the sixth MOSFET Q7 is turned off, cutting off the power supply and stopping the motor.

[0258] Pin 14 of the main control chip U3 is connected to the current sampling terminal CUR_DET. The sampling resistor Rs generates a voltage signal proportional to the magnitude of the current flowing through the motor. After being processed by a filter, the voltage signal generated by the sampling resistor Rs is output from the current sampling terminal CUR_DET and provided to the main control chip U3. Based on the voltage signal received at pin 14, the main control chip U3 can calculate and determine the operating current of the motor.

[0259] Pin 13 of the main control chip U3 is connected to the short-circuit detection terminal SHORT. When a short circuit occurs in the motor, the current flowing through the sampling resistor Rs increases rapidly, generating a sudden increase in voltage signal at the short-circuit detection terminal SHORT. The main control chip U3 determines whether a short circuit has occurred based on whether it receives a sudden voltage signal at pin 13.

[0260] When the main control chip U3 detects a short circuit, it triggers a protection action by outputting a low-level signal through pin 19 to cut off the power supply and stop the motor from running.

[0261] 4) Battery pack voltage detection:

[0262] like Figure 26 As shown, the battery voltage detection circuit includes: the seventh MOSFET Q8, the thirty-first resistor R31, the thirty-second resistor R32, the thirty-third resistor R33, and the thirty-fourth resistor R34.

[0263] The gate of the seventh MOSFET Q8 is connected to the power-on detection terminal 5V_IO via the thirty-first resistor R31. The gate of the seventh MOSFET Q8 is also connected to the negative terminal B- of the battery pack via the thirty-second resistor R32.

[0264] The source of the seventh MOSFET Q8 is connected to the negative terminal B- of the battery pack through the thirty-fourth resistor R34. The drain of the seventh MOSFET Q8 is connected to the positive terminal B+ of the battery pack through the thirty-third resistor R33. The battery voltage detection terminal VBT_DET is formed between the source of the seventh MOSFET Q8 and the thirty-fourth resistor R34.

[0265] Pin 10 of the main control chip U3 is connected to the power-on detection terminal 5V_IO. Pin 12 of the main control chip U3 is connected to the battery voltage detection terminal VBT_DET.

[0266] When the main control chip U3 powers on, pin 10 outputs a DC voltage. At this time, the seventh MOSFET Q8 is turned on, and the main control chip U3 obtains the battery pack voltage through pin 12.

[0267] 5) Power adapter insertion detection and charging status detection:

[0268] like Figure 25 As shown, pin 6 of the main control chip U3 is connected to signal connection line 943 to receive the charging status detection signal. Pin 6 of the main control chip U3 is also connected to pin 10 through the second pull-up resistor RV2.

[0269] Therefore, the second pull-up resistor RV2 ensures that the level of pin 6 of the main control chip U3 is stable, and it can reliably receive the detection signal from the signal connection line 943 (i.e. the level signal provided by the detection signal terminal DS).

[0270] like Figure 27 As shown, the plug-in wake-up circuit includes: the second transistor Q9, the thirty-fifth resistor R35, and the thirty-sixth resistor R36.

[0271] In this configuration, the base of the second transistor Q9 is connected to the wake-up signal terminal WAKE via the thirty-fifth resistor R35, and the base of the second transistor Q9 is also connected to the emitter of the second transistor Q9 via the thirty-sixth resistor R36. The emitter of the second transistor Q9 is also connected to the negative terminal B- of the battery pack. The collector of the second transistor Q9 forms the second charge detection terminal CHG_DET2. This second charge detection terminal CHG_DET2 is connected to pin 1 of the main control chip U3.

[0272] When the power adapter is plugged into the charging port, the wake-up signal terminal WAKE of the charge / discharge management module 920 forms a high-level signal, which is transmitted to the wake-up signal terminal WAKE of the main control module 930 through the signal connection line 942, causing the base level of the second transistor Q9 to be pulled high.

[0273] At this time, the second transistor Q9 is turned on, and the level signal of the second charging detection terminal CHG_DET2 is pulled low. When the main control chip U3 detects that the level of the first pin is pulled low, it wakes up and enters the charging state to charge the battery pack.

[0274] 6) Motor operating gear display:

[0275] To meet the needs of different cleaning scenarios, the motor of the cleaning equipment is equipped with two different operating modes (e.g., high-speed mode and low-speed mode). Pins 15 and 16 of the main control chip U3 can be connected to two LED mode indicators respectively, and the current operating mode of the motor can be indicated by controlling the lighting / off of the two LED mode indicators.

[0276] This application details and describes the relationships and connections between different embodiments. Based on these details, those skilled in the art can understand and confirm whether there are any conflicts in the technical features involved in the different embodiments.

[0277] Furthermore, when the technical features involved in different embodiments are not explicitly described or explained in the relevance and association section as conflicting with each other, they can be combined to obtain more embodiments. These embodiments obtained through simple combinations all fall within the scope of this application.

[0278] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. Those skilled in the art can make various modifications and improvements without departing from the concept of this application, and all of these fall within the scope of protection of this application.

Claims

1. A cleaning apparatus, characterized by, The device comprises: a device body provided with a driving device; a cleaning component detachably connected with the device body through a connecting structure, and a torque output by the driving device acting on the cleaning component through the connecting structure; wherein the connecting structure comprises: a first connecting piece forming a locking space; a second connecting piece accommodated in the locking space; a locking piece protruding from the locking space and abutting against the second connecting piece to limit the second connecting piece from being separated from the locking space; an unlocking piece engaging with the locking piece and driving the locking piece out of the locking space in response to an unlocking operation applied to the unlocking piece.

2. The cleaning apparatus of claim 1, wherein, The connecting structure comprises an elastic pushing component provided on the first connecting piece or the second connecting piece; wherein the elastic pushing component has a tendency to return to an initial state when the second connecting piece is accommodated in the locking space.

3. The cleaning apparatus of claim 1, wherein, The first connecting piece comprises: a plug-in seat comprising a plug-in seat end face and a plug-in seat side wall extending along a circumferential edge of the plug-in seat end face; a first wall surface provided on the plug-in seat end face and cooperating with the plug-in seat end face to form the locking space, the first wall surface being provided with a notch for the locking piece to protrude out; a second wall surface provided between the first wall surface and the plug-in seat side wall to form a guide channel, the locking piece being arranged in the guide channel and moving along the guide channel.

4. The cleaning apparatus of claim 3, wherein, The locking piece comprises: an abutting component arranged in the guide channel and moving between a first position and a second position via the notch; a locking elastic component connected with the abutting component and having a tendency to return to an initial state when the abutting component moves away from the first position; wherein the first position is a position where the abutting component protrudes from the locking space, and the second position is a position where the abutting component exits the locking space.

5. The cleaning apparatus of claim 4, wherein, A first extrusion contact surface is formed between the abutting component and the second connecting piece, so that the abutting component moves to the second position under the extrusion of the second connecting piece.

6. The cleaning apparatus of claim 4, wherein, A surface of the second connecting piece is provided with an abutting recess; wherein when the second connecting piece moves to a position where the abutting recess corresponds to the notch, the abutting component resets to the first position and a first abutting contact surface is formed between the abutting recess and the abutting component.

7. The cleaning apparatus of claim 6, wherein, The locking piece comprises two pieces arranged symmetrically in a first direction or a second direction; The second connecting piece comprises a first surface and a third surface arranged symmetrically in the first direction, and a second surface and a fourth surface arranged symmetrically in the second direction; wherein the first surface, the second surface, the third surface, and the fourth surface are all provided with the abutting recess.

8. The cleaning apparatus of claim 4, wherein, The unlocking piece comprises: a pressing cover covering the outside of the plug-in seat and moving along an axis between a third position and a fourth position, the plug-in seat end face being provided with a first through hole; An engaging piece is arranged inside the pressing cover and passes through the first through hole of the socket end face; A second extrusion contact surface is formed between the engaging piece and the abutting component, which is inclined relative to the axial direction, and a linkage relationship between the pressing cover and the abutting component is established; The linkage relationship includes: When the abutting component moves to the first position, the pressing cover moves to the third position correspondingly; When the pressing cover moves to the fourth position, the abutting component moves to the second position correspondingly.

9. The cleaning apparatus of claim 8, wherein, The socket end face is provided with a second through hole; The unlocking piece further includes a limiting piece arranged inside the pressing cover and passing through the second through hole of the socket end face; When the pressing cover moves to the fourth position, a second abutting contact surface is formed between the limiting piece and the socket end face.

10. The cleaning apparatus of claim 2, wherein, The elastic push-out component includes: A pop-up top cover arranged on the second connecting piece; A pop-up spring arranged between the pop-up top cover and the second connecting piece; When the second connecting piece is accommodated in the locking space, the pop-up top cover is in contact with the first connecting piece, and the pop-up spring is in a compressed state.

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