Power management unit and cleaning machine handle

Abstract

The invention provides a power management unit and a cleaning machine handle, and the power management unit comprises a clamping shell which is provided with a closed end, a circumferential side wall and an open end, the closed end is provided with a plurality of split conductive parts which are electrically connected with the outside, and the split conductive parts are used for being detachably and electrically connected with a handle assembly; a containing cavity is defined by the closed end of the clamping shell and the circumferential side wall. A charging and discharging module and a main control module are mounted in the accommodating cavity; the power management unit body is also provided with a display module; the main control module controls the charging and discharging module and the display module to work in an electric connection mode, and the charging and discharging module carries out bidirectional charging and discharging through the closed end, the charging port and the cleaning machine. The power management unit can display the remaining electric quantity of the cleaning machine and set the working mode of the cleaning machine, and the standby power management unit is convenient to disassemble, assemble and replace, so that continuous cleaning operation is facilitated.

Description

[0001] This application is a divisional application of Chinese patent application No. 202310501554.9, and invention name is “A power management unit and cleaning machine handle”, the contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to the field of cleaning technology, and in particular to a power management unit and a cleaning machine handle. Background Art

[0003] With economic development, electric cleaning machines have become part of everyday life. They are primarily used for cleaning surfaces in homes, offices, shopping malls, and other indoor public spaces. Newer applications include car washes. Traditional cleaning equipment typically has a non-removable battery, recharged through the cleaning device itself, or a removable battery with a non-removable display assembly.

[0004] Chinese patents CN214284794U, CN212326292U, and CN113876245A provide a cleaning device comprising a handheld portion, a cleaning head, and a base; the handheld portion is connected to the cleaning head, the cleaning head comprising a roller and a snap-on shell, the roller being mounted on the snap-on shell, and a battery being mounted inside the snap-on shell of the handheld portion and / or the cleaning head; the base is provided with a charging port, a charging contact spring pin, and a cleaning groove; when the cleaning head is placed on the base, the base charges the battery through the charging contact spring pin, and the cleaning groove accommodates the roller.

[0005] Chinese patent CN212326300U provides a cleaning tool, which includes: a cleaning head, the bottom of which is provided with a power-assisted wheel assembly driven by a motor; a hollow mop rod hinged to the cleaning head, the mop rod including a handle with a power-assisted identification structure; the power-assisted identification structure is electrically connected to the motor to control the direction of the motor. The device includes: a detection module for detecting the force applied to the handle; a judgment module for judging the change in the force applied to the handle; and an execution module for controlling the rotation direction of the motor. The present invention assembles a power-assisted identification structure on the mop rod, and can sensitively sense the operator's intention through changes in the magnitude and direction of the force applied by the operator to the mop rod, thereby controlling the motor to drive the cleaning tool to make adaptive changes, making the design more humane.

[0006] Chinese patent CN218186689U provides a battery assembly for cleaning equipment and a cleaning device. The battery assembly is detachably mounted on a main unit of the cleaning device and includes a battery module and a display assembly mounted on the battery module. The display assembly is configured to display status information and operate the main unit. When a user operates the cleaning device, the display assembly faces the user. The battery module is provided with a first terminal for charging and a second terminal for power supply and signal transmission with the main unit. The display assembly of the present invention is fixed to the battery assembly and can be removed from the main unit together with the battery assembly. It displays charging information during charging and operation information during operation. The display direction is convenient for the user to observe, improving the user experience.

[0007] In the above-mentioned prior art, on the one hand, the cleaning machines disclosed in CN214284794U, CN212326292U, CN113876245A, and CN212326300U usually have the rechargeable battery module built into the housing or the handheld portion that cannot be easily removed and replaced. The battery module cannot display the remaining power and set the working mode, and it is impossible to switch to a backup cleaning machine battery at any time to ensure continuous cleaning operation. On the other hand, the battery assembly and cleaning device disclosed in CN218186689U, although the battery assembly can be plugged into the end of the handle, cannot directly realize bidirectional charging and discharging on the cleaning device. At the same time, the cleaning device is controlled by simply touching the display assembly of the battery assembly. In many cases, the touch control is not flexible or misoperation may occur due to wet hands of the user. In addition, the single clip that fits the entire battery assembly snap-on housing from small to large to snap into the cleaning device handle makes the electrical connection between the battery assembly and the cleaning device handle unstable. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides a power management unit and a cleaning machine handle, the power management unit comprising: a snap-on shell having a closed end, a circumferential side wall and an open end, the closed end being provided with a plurality of split conductive parts electrically connected to the outside, for detachably electrically connecting to the handle assembly, the closed end and the circumferential side wall of the snap-on shell enclose a accommodating cavity; a charging and discharging module and a main control module are installed in the accommodating cavity; the power management unit body is also provided with a display module; the main control module controls the operation of the charging and discharging module and the display module in an electrically connected manner, and the charging and discharging module performs bidirectional charging and discharging through the closed end, the charging port and the cleaning machine.

[0009] In a first aspect, the present invention provides a power management unit mounted on one end of a handle assembly of a cleaning machine, comprising:

[0010] The snap-on housing has a closed end equipped with a plurality of split conductive members, a circumferential side wall, and an open end. The closed end is detachably electrically connected to the handle assembly. The closed end and the circumferential side wall together enclose an accommodating cavity. The split conductive members can discharge electricity into the cleaning machine. The circumferential side wall is provided with a conductive transfer protrusion.

[0011] The charging and discharging module is installed in the accommodating cavity and has an output end and an input end, the output end is electrically connected to the multiple split conductive parts, and the inner end of the conductive transfer protrusion is electrically connected to the input end;

[0012] Among them, a charging port is provided on the handle assembly, and the circumferential side wall is arranged in a stepped multi-level contraction shape. Multiple snap-on assemblies cooperate with the entire power management unit to snap into the handle assembly in the direction from small to large toward the end face. The charging and discharging module is bidirectionally charged and discharged through the split conductive parts, the charging port and the cleaning machine.

[0013] In some or one of the embodiments, the circumferential side wall is provided with at least two clamping portions, which are matched with the buckle assembly of the handle assembly, and the two clamping portions are symmetrically arranged along the center plane of the clamping shell.

[0014] In some or one of the embodiments, the power management unit further comprises:

[0015] The main control module has a charging control module, which is installed on the charging and discharging module to control the operation of the charging and discharging module. The input end of the charging and discharging module is electrically connected to the charging control module; the charging control module is electrically connected to the charging port.

[0016] In some or one of the embodiments, after the power management unit is firmly snapped into place with the handle assembly, the conductive adapter protrusion is electrically connected to the charging port of the handle assembly.

[0017] In some or one of the embodiments, each snap-fitting portion includes a stress-bearing structure consisting of a first guide boss extending along the installation direction of the snap-fitting shell and a snap-fitting groove opened on the first guide boss. The depth of the snap-fitting groove is gradually deepened along the installation direction of the snap-fitting shell, and a snap-fitting end face portion for snapping the snap-fitting assembly is provided on the inner wall of the snap-fitting groove.

[0018] In some or one of the embodiments, the power management unit further comprises:

[0019] The display module is installed at the open end and is used to display and select the working mode and status of the cleaning machine. The main control module controls the display module.

[0020] In some or one of the embodiments, the display module includes a selection input module for selecting an operating mode of the cleaning machine.

[0021] In some or one of the embodiments, the selection input module is a touch screen with feedback.

[0022] In some or one of the embodiments, the display module also includes a display screen with a circular area hollowed out, the selection input module is a pressable button embedded in the display screen and filling the hollowed-out circular area, and the part connecting the display screen and the button is a flexible waterproof silicone ring that is integrated with the two.

[0023] In some or one of the embodiments, the circumferential side wall is further provided with at least one second guide boss, and the second guide boss is extended in the same direction as the first guide boss.

[0024] In some or one of the embodiments, the circumferential side wall is sequentially formed with a first abutting end surface portion, a second abutting end surface portion, and a third abutting end surface portion in a direction from large to small toward the end surface.

[0025] In some or one of the embodiments, the power management unit further comprises:

[0026] The adapter plate is sealed and connected to the snap-on shell at the closed end, and a plurality of split conductive parts are arranged on the adapter plate.

[0027] In some or one of the embodiments, the plurality of split conductive parts include a positive conductive pin, a negative conductive pin, a signal contact pin one, a signal contact pin two, a signal contact pin three, and a signal contact pin four.

[0028] In some or one of the embodiments, the open end may be closed by an end cap for mounting a display module through which the interior can be seen.

[0029] In some or one of the embodiments, a sealing ring is provided at the mounting location of the end cover.

[0030] In some or one of the embodiments, the display module is embedded in the end cover.

[0031] In some or one of the embodiments, the charging and discharging module includes a charging and discharging protection plate, a battery lower bracket, a battery upper bracket and a rechargeable battery. The rechargeable battery is installed in the accommodating cavity through the battery lower bracket and the battery upper bracket. The charging and discharging protection plate is electrically connected to the rechargeable battery and the main control module.

[0032] In a second aspect, the present invention further provides a cleaning machine handle, which is equipped with the power management unit as described in the first aspect.

[0033] Beneficial effects of the present invention:

[0034] On one hand, the present invention arranges the power management unit of the cleaning machine to be removably electrically connected to the handle assembly of the cleaning machine, and integrates the main control module, discharge module, display module, and selection input module into the power management unit. The remaining battery charge of the cleaning machine can be displayed on the display module, and the operating mode of the cleaning machine can be set through the selection input module. This facilitates the removal and replacement of the backup power management unit, facilitating continuous cleaning operations. The independently pressable selection input module, independent of the display module, prevents the user from having wet hands, which may cause touch inflexibility or misoperation.

[0035] On the other hand, the circumferential side walls of the snap-on shell of the power management unit of the present invention are arranged in a stepped multi-level contraction shape, and the multiple snaps cooperate with the entire power management unit to snap into the cleaning machine handle assembly in the direction from small to large toward the end face, thereby improving the electrical connection reliability between the power management unit and the cleaning machine handle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without exceeding the scope of protection required by this application.

[0037] Figure 1 This is an axial exploded view of a cleaning machine with a built-in power management unit of the present invention.

[0038] Figure 2 This is an axial exploded view of a cleaning machine handle assembly with a built-in power management unit of the present invention.

[0039] Figure 3 This is the front view of the power management unit of the present invention.

[0040] Figure 4 This is a left view of the power management unit of the present invention.

[0041] Figure 5 This is a three-dimensional diagram of the power management unit of the present invention.

[0042] Figure 6 for Figure 3 A-axis sectional view.

[0043] Figure 7 for Figure 4 Middle B-direction sectional view.

[0044] Figure 8 This is an axial exploded view of the power management unit of the present invention.

[0045] Figure 9 This is an axial exploded view of the power management unit of the present invention from another perspective.

[0046] Reference numerals:

[0047] Power management unit 1;

[0048] Snap-on housing 11;

[0049] The clamping portion 111, the first guide boss 1111, the clamping groove 1112, and the clamping end surface portion 11121;

[0050] A second guide boss 112;

[0051] First abutting end surface portion 113;

[0052] Second abutting end surface portion 114;

[0053] The third abutting end surface portion 115;

[0054] Conductive transfer protrusion 116;

[0055] closed end 11a;

[0056] Accommodating chamber 11b;

[0057] Handle assembly 2, buckle assembly 21;

[0058] Charge and discharge module 12, charge and discharge protection board 121, battery lower bracket 122, battery upper bracket 123, rechargeable battery 124;

[0059] Main control module 13;

[0060] Display module 14;

[0061] Select input module 15;

[0062] Adapter board 16, positive conductive pin 161, negative conductive pin 162, signal contact pin 1 163, signal contact pin 2 164, signal contact pin 3 165, signal contact pin 4 166;

[0063] End cover 17, sealing ring 171.

[0064] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0065] The following is a further detailed description of the claims of the present invention in conjunction with specific embodiments and accompanying drawings. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments proposed by ordinary technicians in this field without making creative efforts are also within the scope of protection of the present invention.

[0066] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up," "down," "left," "right," "front," "back," etc., indicate positions or positional relationships based on the positions and positional relationships shown in the accompanying drawings or the positions or positional relationships in which the inventive product is typically placed when in use. These terms are intended only to simplify the description of the present invention and do not explicitly or implicitly indicate that the devices, elements, or components referred to must have a specific position or specific directional structure, and should not be construed as limiting the present invention. They are only used to explain the relative positional relationships and movement conditions between the components shown in the accompanying drawings. When the specific posture changes, the directional indication may also change accordingly.

[0067] Furthermore, ordinal numbers such as "first" and "second" in this disclosure are used solely for distinction purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. The terms "first" and "second" may explicitly or implicitly indicate at least one of the technical features. In this disclosure, "plurality" means at least two, i.e., two or more, unless otherwise expressly specified; and "at least one" means one, one, or more.

[0068] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can mean that the positional relationship between components is relatively fixed, or that the components are physically fixedly connected. It can be a detachable connection or an integrated structure. It can be a mechanical connection or an electrical signal connection. It can be a direct connection or an indirect connection through an intermediate medium or component. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined in the specification, other understandings may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] The controllers and control circuits involved in the present invention are conventional control technologies or units known to those skilled in the art. For example, the control circuits of the controllers can be implemented by those skilled in the art using existing technologies, such as simple programming. Regarding software or programs that work with hardware to achieve control results, if the description does not provide a detailed description of the software or program control process involved, then the existing technologies or conventional technologies known to those skilled in the art are used. The power supply also uses the existing technologies described above, and the main technical point of the present invention is to improve the mechanical device. Therefore, the present invention will not further describe the specific circuit control relationships and circuit connections.

[0070] The disclosure of the present invention provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described in the present invention. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0071] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0072] In order to solve the technical problems existing in the prior art, an embodiment of the present invention provides a power management unit and a cleaning machine handle.

[0073] In the embodiment of the present invention, please refer to Figures 1 to 9 The power management unit 1 provided in an embodiment of the present invention includes a snap-on shell 11, which has a closed end 11a provided with multiple split conductive parts, a circumferential side wall (not marked in the drawings), and an open end (not marked in the drawings). The snap-on shell 11 extends from the closed end 11a along the circumferential side wall to the open end to enclose a receiving cavity 11b. The closed end 11a is used to be detachably electrically connected to the cleaning machine handle assembly 2, and the handle assembly 2 is externally provided with a charging interface (not marked in the drawings); a charging and discharging module 12 and a main control module 13 are installed in the receiving cavity 11b; the charging and discharging module 12 has an output end (not marked in the drawings) and an input end (not marked in the drawings), the output end is electrically connected to the multiple split conductive parts, and the input end is electrically connected to the charging control interface of the main control module 13. control module (not shown in the drawings); the main control module 13 is installed on the charging and discharging module 12, and the charging and discharging module 12 and the main control module 13 can be installed in the accommodating cavity 11b in sequence through the open end of the snap-on shell 11; the charging and discharging module 12 is electrically connected to the main control module 13, and the main control module 13 controls the operation of the charging and discharging module 12. The charging control module of the main control module 13 is electrically connected to the charging port, and the charging and discharging module 12 performs bidirectional charging and discharging through the closed end 11a, the charging port and the cleaning machine.

[0074] Furthermore, in one embodiment, the power management unit 1 also includes a display module 14, which is installed at the open end of the snap-on shell 11 to display and select the working mode and status of the cleaning machine, and the main control module 13 controls the operation of the display module 14.

[0075] Furthermore, in one embodiment, the display module 14 further includes a selection input module 15 for selecting a working mode of the cleaning machine.

[0076] Furthermore, in one embodiment, the selection input module 15 is a touch screen with feedback, and the display area or specific area of ​​the entire touch screen can be triggered to select a mode. At this time, the display module 14 and the selection input module 15 are actually the same touch screen with touch feedback function.

[0077] Furthermore, in one embodiment, Figure 2 、 Figure 5 、 Figure 8 As shown, the display module 14 is a display screen with a circular area hollowed out, and the selection input module 15 is a button with a display light that can be pressed to trigger mode selection and is embedded in the display screen and fills the hollowed-out circular area. The part connecting the display screen and the button is a flexible waterproof silicone ring (not marked in the figure) that is integrated with the two.

[0078] It should be noted that in this embodiment, the snap-on shell 11 can be cylindrical, square, stepped or cylindrical, and the closed end 11a can be a convex or concave docking end.

[0079] In one embodiment, Figures 1 to 3 、 Figures 5 to 7As shown, the closed end 11a of the snap-on shell 11 is convexly arranged. When the cleaning machine is in use, one cleaning machine handle assembly 2 can be adapted to replace multiple power management units 1. The power management unit 1 can be directly plugged into the cleaning machine handle assembly 2 when in use. In this embodiment, the detachable electrical connection means that after the closed end 11a is detachably installed to the cleaning machine handle assembly 2, the electrical connection can be achieved by matching a split conductive connector (not shown in the drawing). The split conductive connector can specifically be a plurality of conductive pins (not shown in the drawing). The detachable manner of the detachable electrical connection in the embodiment of the present invention includes a snap connection, a magnetic connection, a threaded connection, etc. The charging and discharging module 12 can include a charging and discharging protection board 121 and a rechargeable battery 124. The power management unit 1 can supply power to the cleaning machine via the multiple conductive pins of the closed end 11a. The display module 14 can display the real-time voltage of the charging and discharging module 12 collected by the main control module 13. After receiving the corresponding instruction from the selection input module 15, the main control module 13 performs the corresponding action, including controlling the output power through the charge and discharge module 12. The feedback signal may include the motor speed and real-time power of the cleaning machine. The feedback signal can be collected by sensors installed on the cleaning machine and then transmitted back to the main control module 13 through the closed end 11a via multiple conductive pins.

[0080] In one embodiment, the selection input module 15 may include a plurality of different function keys such as a power button, a power selection button, and a mode selection button.

[0081] In one embodiment, Figure 2 、 Figure 5 、 Figure 8 As shown, the selection input module 15 can also be a single function key that activates different functions through different pressing durations, different pressing frequencies, different pressing times at a specific pressing frequency, etc.

[0082] The first beneficial effect of the present invention is that the present invention's technical solution, by arranging a power management unit that is detachably electrically connected to the cleaning machine's handle assembly and integrating a main control module, a charging and discharging module, a display module, and a selection input module into the power management unit, allows the remaining power of the power management unit to be displayed on the display module, and the cleaning machine's operating mode to be set via the selection input module. Furthermore, the power management unit can be easily removed and replaced with a backup, facilitating the continued use of the cleaning machine. The independently pressable selection input module, independent of the display module, prevents wet hands from causing touch inflexibility or misoperation.

[0083] In order to ensure reliable installation of the power management unit 1, in one embodiment of the present invention, please refer to Figures 2 to 5As shown, the outer surface of the snap housing 11 is provided with at least one snap-on portion 111, which is configured to mate with the buckle assembly 21 of the handle assembly 2. The snap-on portion 111 may be a tongue or a slot. In this embodiment, there are two snap-on portions 111, i.e., two snap-on portions 111 are provided on the outer surface of the snap housing 11.

[0084] Specifically, in this embodiment, please refer to Figures 4 to 6 Each of the engaging portions 111 includes a first guide boss 1111 extending along the installation direction of the snap housing 11 and a snap-in slot 1112 formed on the first guide boss 1111. The arrangement of the first guide boss 1111 and the snap-in slot 1112 provides the snap housing 11 with a stress-bearing structure over a longer length, making it more robust and durable than a cantilevered latch structure.

[0085] In one embodiment of the present invention, please refer to Figures 4 to 6 The depth of the snap-in groove 1112 is gradually deepened along the installation direction of the snap-in shell 11, and a snap-in end surface portion 11121 for the snap-in assembly 21 to engage is provided on the inner wall of the snap-in groove 1112. The installation direction of the snap-in shell 11 is the direction in which the snap-in shell 11 is inserted into the corresponding cleaning machine handle assembly 2. The gradual deepening of the snap-in groove 1112 in the installation direction facilitates the sliding of the latch tongue (not shown in the drawings) of the snap-in assembly 21 into the snap-in end surface portion 11121 to lock the snap-in shell 11. The sliding and engaging process is a smooth path, reducing wear on the latch tongue of the snap-in assembly 21 by the snap-in portion 111, thereby increasing the service life of the latch tongue of the corresponding snap-in assembly 21 of the cleaning machine.

[0086] In one embodiment of the present invention, Figures 3 to 5 As shown, the snap-on housing 11 is further provided with at least one second guide boss 112, which extends in the same direction as the first guide boss 1111. In this embodiment, there is one second guide boss 112, and the number of the snap-on portions 111 is set to two, corresponding to the number of the first guide bosses 1111 being two. The provision of the second guide boss 112, together with the first guide boss 1111, facilitates the installation of the snap-on housing 11 to the cleaning machine handle assembly 2. The shape of the second guide boss 112, together with the first guide boss 1111, forms a fool-proof structure, allowing the power management unit 1 to be installed in the cleaning machine handle assembly 2 in the set direction each time.

[0087] In order to enhance the connection reliability of the power management unit 1, in one embodiment of the present invention, please refer to Figure 2 and Figure 6The snap-on shell 11 is arranged in a stepped contraction shape along the installation direction of the snap-on shell 11, and is sequentially formed with a first abutting end surface portion 113, a second abutting end surface portion 114, and a third abutting end surface portion 115. The above arrangement of the first abutting end surface portion 113, the second abutting end surface portion 114, and the third abutting end surface portion 115 allows the snap-on shell 11 and the cleaning machine handle assembly 2 to have multiple abutting surfaces. The multiple abutting surfaces, together with the snap-on end surface portion 11121 and the snap-on end surface portion 11121 of the buckle assembly 21, limit the snap-on shell 11 in the installation direction, thereby increasing the tightness of the installation of the power management unit 1 and preventing power interruption to the cleaning machine due to loosening of the power management unit 1.

[0088] In one embodiment of the present invention, Figure 5 and Figure 7 As shown, the circumferential sidewalls of the snap-on housing 11 are provided with a conductive adapter protrusion 116, the inner end of which is electrically connected to the input terminal (not shown) of the charging and discharging module 12. When the power management unit 1 is installed into the cleaning machine handle assembly 2 and securely snapped into place, the conductive adapter protrusion 116 is electrically connected to the charging port of the cleaning machine handle assembly 2. Then, by connecting the conductive pins (not shown) of the charging head of an external charger (not shown) to the charging port, the rechargeable batteries 124 in the charging and discharging module 12 can be charged.

[0089] In one embodiment of the present invention, see Figure 4 、 Figure 8 、 Figure 9 The power management unit 1 also includes an adapter plate 16, which is sealedly mounted to the closed end 11a of the snap-on housing 11. The adapter plate 16 is provided with a positive conductive pin 161, a negative conductive pin 162, a first signal contact pin 163, a second signal contact pin 164, a third signal contact pin 165, and a fourth signal contact pin 166. The functional pins on the adapter plate 16 can be used in conjunction with corresponding mating jacks on the cleaning machine to form separate conductive components for a removable electrical connection. This provides a secure connection and ensures the reliability of the removable electrical connection of the power management unit 1.

[0090] The second beneficial effect of the present invention is that the circumferential side walls of the snap-on shell of the power management unit are arranged in a stepped multi-level contraction shape, and the multiple snaps cooperate with the entire power management unit to snap into the cleaning machine handle assembly in the direction from small to large toward the end face, thereby improving the electrical connection reliability between the power management unit and the cleaning machine handle assembly.

[0091] In one embodiment of the present invention, Figure 2 、 Figures 5 to 8As shown, the display module 14 is an LED display module. The display module 14 is configured as an LED display module with high display brightness, which can clearly display the power management unit power information to the user. The shape of the display module 14 can be set to a circle as shown in the figure, or it can be set to other shapes. The connection between the display module 14 and the main control module 13 is conventional, and the details can be referred to the relevant prior art.

[0092] In one embodiment of the present invention, Figure 2 、 Figures 5 to 8 As shown, the selection input module 15 is a touch key module. It should be noted that the selection input module 15 is selected as a touch key module, which can better isolate external dust and moisture compared to mechanical keys, and to a certain extent extend the service life of the power management unit 1.

[0093] In one embodiment of the present invention, please refer to Figure 7 and Figure 8 The open end of the snap-on shell 11 is provided with an end cover 17. The provision of the end cover 17 facilitates the installation of the components of the power management unit 1 and is easier to maintain, thereby reducing production and maintenance costs to a certain extent.

[0094] Furthermore, in one embodiment, the outer surface of the end cover 17 is dark in color.

[0095] Furthermore, in one embodiment, in order to increase the sealing performance of the power management unit 1, as shown in FIG. Figure 8 、 Figure 9 As shown, a sealing ring 171 is provided at the installation position of the end cover 17. The provision of the sealing ring 171 increases the waterproof and dustproof properties of the installation end cover 17.

[0096] Further, in one embodiment, please refer to Figure 7 The display module 14 and the selection input module 15 are embedded in the end cover 17. The display module 14 and the selection input module 15 are embedded in the end cover 17 for easy assembly and maintenance.

[0097] In one embodiment of the present invention, Figure 8 and Figure 9As shown, the charging and discharging module 12 includes a charging and discharging protection plate 121, a lower battery bracket 122, an upper battery bracket 123, and a rechargeable battery 124. The rechargeable battery 124 is mounted in the accommodating cavity 11b via the lower battery bracket 122 and the upper battery bracket 123. The charging and discharging protection plate 121 is electrically connected to the rechargeable battery 124 and the main control module 13. Of course, the lower battery bracket 122 and the upper battery bracket 123 can also be provided as an integral unit, which is also within the scope of protection of the present invention. The specific model of the charging and discharging protection plate 121 can be selected with reference to existing technologies. The arrangement of the lower battery bracket 122 and the upper battery bracket 123 facilitates the fixation of the rechargeable battery 124 and prevents the rechargeable battery 124 from shaking in the snap-on shell 11.

[0098] The present invention also protects a cleaning machine handle equipped with the power management unit described above. The specific structure of the power management unit is similar to that of the above embodiments. Since the cleaning machine handle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0099] The embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core ideas of the present application. Changes or modifications made by those skilled in the art based on the ideas of the present application, the specific implementation methods, and the scope of application of the present application are all within the scope of protection of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. A power management unit, mounted on one end of a handle assembly of a cleaning machine, characterized in that: include: The snap-on housing has a closed end equipped with a plurality of split conductive members, a circumferential side wall, and an open end. The closed end is detachably electrically connected to the handle assembly. The closed end and the circumferential side wall together enclose an accommodating cavity. The split conductive members can discharge electricity into the cleaning machine. The circumferential side wall is provided with a conductive transfer protrusion. The charging and discharging module is installed in the accommodating cavity and has an output end and an input end, the output end is electrically connected to the multiple split conductive parts, and the inner end of the conductive transfer protrusion is electrically connected to the input end; Among them, a charging port is provided on the handle assembly, and the circumferential side wall is arranged in a stepped multi-level contraction shape. Multiple snap-on assemblies cooperate with the entire power management unit to snap into the handle assembly in the direction from small to large toward the end face. The charging and discharging module is bidirectionally charged and discharged through the split conductive parts, the charging port and the cleaning machine.

2. The power management unit according to claim 1, wherein: The circumferential side wall is provided with at least two clamping parts, which are matched with the buckle assembly of the handle assembly, and the two clamping parts are symmetrically arranged along the center plane of the clamping shell; Preferably, the power management unit further includes: The main control module has a charging control module, which is installed on the charging and discharging module to control the operation of the charging and discharging module. The input end of the charging and discharging module is electrically connected to the charging control module; the charging control module is electrically connected to the charging port; Preferably, after the power management unit is firmly snapped into place with the handle assembly, the conductive adapter protrusion is electrically connected to the charging port of the handle assembly.

3. The power management unit according to claim 1, wherein: Each clamping portion includes a stress-bearing structure consisting of a first guide boss extending along the installation direction of the clamping shell and a clamping groove opened on the first guide boss. The depth of the clamping groove is gradually deepened along the installation direction of the clamping shell, and a clamping end surface portion for the clamping assembly to be clamped is provided on the inner wall of the clamping groove.

4. The power management unit according to claim 2, wherein: Also includes: A display module is installed at the open end and is used to display and select the working mode and status of the cleaning machine. The main control module controls the display module; Preferably, the display module includes a selection input module for selecting an operating mode of the cleaning machine.

5. The power management unit according to claim 4, wherein: Select the input module as a touch screen with feedback.

6. The power management unit according to claim 4, wherein: The display module also includes a display screen with a circular area hollowed out. The selection input module is a pressable button embedded in the display screen and filling the hollowed-out circular area. The part connecting the display screen and the button is a flexible waterproof silicone ring that is integrated with the two.

7. The power management unit according to claim 3, wherein: The circumferential side wall is further provided with at least one second guide boss, and the second guide boss is extended in the same direction as the first guide boss; Preferably, the circumferential side wall is formed with a first abutting end surface portion, a second abutting end surface portion, and a third abutting end surface portion in sequence from large to small toward the end surface.

8. The power management unit according to claim 2, wherein: Also includes: An adapter plate is sealed and connected to the snap-on housing at a closed end, and a plurality of split conductive parts are arranged on the adapter plate; Preferably, the plurality of split conductive parts include a positive conductive pin, a negative conductive pin, a signal contact pin one, a signal contact pin two, a signal contact pin three, and a signal contact pin four.

9. The power management unit according to claim 2, wherein: The open end can be closed and installed with an end cover that allows the display module inside to be seen through; Preferably, a sealing ring is provided at the installation location of the end cover; Preferably, the display module is embedded in the end cover; Preferably, the charge and discharge module includes a charge and discharge protection plate, a battery lower bracket, a battery upper bracket and a rechargeable battery. The rechargeable battery is installed in the accommodating cavity through the battery lower bracket and the battery upper bracket. The charge and discharge protection plate is electrically connected to the rechargeable battery and the main control module.

10. A cleaning machine handle, characterized in that: A power management unit according to any one of claims 1 to 9 is installed.

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