Patent Application
20250031613
This application claims the benefit under 35 U.S.C. § 119 (a) of Chinese Patent Application No. 202310924711.7, filed on Jul. 25, 2023, which application is incorporated herein by reference in its entirety.
The present disclosure relates to garden tools, for example, a push working machine and mower.
In a self-propelled garden tool such as a push mower or a push snow thrower, an operating member is generally disposed on the handle and used for a user to control the operation states of a traveling motor and a working motor of the machine.
The user can start the mower through the operating member such that the mower travels and/or mows. During the process of starting the mower, the user can control the process of starting the mower and can control at least the starting speed or the change in speed.
This part provides background information related to the present application, which is not necessarily the existing art.
A push working machine includes a body including at least a traveling assembly, a traveling motor driving the traveling assembly, a functional assembly, and a functional motor driving the functional assembly; a handle device connected to the body and including at least an operating member for a user to operate; a controller configured to control at least the working states of the traveling motor and the functional motor; and a power interface for connecting electrical energy capable of supplying power to at least the traveling motor and the functional motor. The controller is configured to, in response to a start signal, be capable of controlling the traveling motor to accelerate to the first speed with the first acceleration and accelerate to the target self-propelled speed with the second acceleration.
In an example, the second acceleration is less than the first acceleration.
In an example, the push working machine further includes an Internet of Things (IoT) module configured to be connected to at least the controller and capable of transmitting communication data to the controller.
In an example, an IoT module is configured to communicate with an external terminal and acquire startup setting data sent by the external terminal.
In an example, the controller is configured to acquire the startup setting data and adjust at least the first acceleration and/or the second acceleration according to the startup setting data.
In an example, the IoT module supports at least one of wired communication technology and wireless communication technology.
In an example, the IoT module supports at least one of transmission access, network switching, mobile communications, wireless communications, optical communications, satellite communications, support management, and private network communications.
In an example, the IoT module supports at least one of cellular network technology, wireless local area network (LAN) technology, wireless personal area network (PAN) technology, satellite communication technology, infrared communication technology, optical fiber communication technology, Bluetooth Low Energy (Bluetooth LE) technology, long range (LoRa) technology, Wi-Fi, and Zigbee.
In an example, the controller is configured to acquire the startup setting data and adjust the first acceleration and/or the second acceleration according to the startup setting data.
In an example, the controller includes a data storage unit configured to store historical startup setting data.
In an example, the controller further includes a control unit configured to set the first acceleration and/or the second acceleration according to the historical startup setting data.
A push self-propelled mower includes a body including at least a traveling assembly, a traveling motor driving the traveling assembly, a cutting assembly, and a cutting motor driving the cutting assembly; a handle device connected to the body and including at least an operating member for a user to operate; a controller configured to control at least the working states of the traveling motor and the cutting motor; and a power interface for connecting electrical energy capable of supplying power to at least the traveling motor and the cutting motor. The controller is configured to, in response to a start signal, be capable of controlling the traveling motor to accelerate to the target self-propelled speed with at least two different accelerations.
In an example, the push mower further includes an IoT module configured to be connected to at least the controller and capable of transmitting communication data to the controller.
In an example, an IoT module is configured to communicate with an external terminal and acquire startup setting data sent by the external terminal.
In an example, the controller is configured to acquire the startup setting data and adjust the acceleration according to the startup setting data.
A push mower includes a body including at least a traveling assembly, a traveling motor driving the traveling assembly, a cutting assembly, and a cutting motor driving the cutting assembly; a handle device connected to the body and including at least an operating member for a user to operate; a controller configured to control at least the working states of the traveling motor and the cutting motor; and a power interface for connecting electrical energy capable of supplying power to at least the traveling motor and the cutting motor. The controller is configured to, in response to a self-propelled start signal, be capable of controlling the traveling motor to accelerate to the target self-propelled speed with the variable self-propelled acceleration; or in response to a mowing start signal, be capable of controlling the cutting motor to accelerate to the target mowing speed with the variable mowing acceleration.
In an example, the self-propelled acceleration includes at least the first acceleration and the second acceleration, where the first acceleration is greater than the second acceleration; and the mowing acceleration includes at least the third acceleration and the fourth acceleration, where the third acceleration is greater than the fourth acceleration.
In an example, the push mower further includes an IoT module configured to be connected to at least the controller and capable of transmitting communication data to the controller.
In an example, the IoT module is configured to communicate with an external terminal and acquire startup setting data sent by the external terminal.
In an example, the controller is configured to acquire the startup setting data and adjust the self-propelled acceleration and/or the mowing acceleration according to the startup setting data.
In an example, the controller includes a data storage unit configured to store historical startup setting data.
In an example, the controller further includes a control unit configured to set the self-propelled acceleration and/or the mowing acceleration according to the historical startup setting data.
A push mower includes a body including at least a traveling assembly, a traveling motor driving the traveling assembly, a cutting assembly, and a cutting motor driving the cutting assembly; a handle device connected to the body and including at least an operating member for a user to operate; and a control circuit configured to control at least the operation of the traveling motor and/or the cutting motor. The push mower further includes an illumination assembly including an illumination element and a light switch for the user to operate to control the illumination element; and a lamp control circuit configured to control a working state of the illumination element. At least part of the lamp control circuit and the control circuit are not disposed on the same control circuit board.
In an example, the lamp control circuit is disposed on a lamp control circuit board, and the control circuit is disposed on a main control board.
In an example, the lamp control circuit board communicates with the main control board through a bus.
In an example, at least a power component in the lamp control circuit is disposed on the main control board.
To illustrate technical solutions in examples of the present application more clearly, drawings used in the description of the examples are briefly described below. Apparently, the drawings described below illustrate only part of the examples of the present application, and those of ordinary skill in the art may obtain other drawings based on the drawings described below on the premise that no creative work is done.
Before any example of the present application is explained in detail, it is to be understood that the present application is not limited to the application in the structural details and arrangement of components set forth in the following description or shown in the preceding drawings.
In the present application, the term “comprising”, “including”, “having”, or any other variant thereof is intended to encompass a non-exclusive inclusion so that a process, method, article, or apparatus that includes a series of elements not only includes those elements but also includes other elements that are not expressly listed or further includes elements that are inherent to such a process, method, article, or apparatus. In the absence of more limitations, an element defined by the statement “including a . . . ” does not exclude the presence of additional identical elements in a process, method, article, or device including the element.
In the present application, the term “and/or” is an association relationship describing associated objects and indicates that three relationships may exist. For example, A and/or B may indicate that A exists alone, both A and B exist, and B exists alone. In addition, in the present application, the character “/” generally indicates an “and/or” relationship between associated objects before and after the character “/”.
In the present application, the term “connected”, “combined”, “coupled”, or “mounted” may be directly “connected”, “combined”, “coupled”, or “mounted” and may also be indirectly “connected”, “combined”, “coupled”, or “mounted”. For example, the direct connection indicates that two parts or assemblies are connected together without an intermediate piece, and the indirect connection indicates that two parts or assemblies are separately connected to at least one intermediate piece and the two parts or assemblies are connected through the intermediate piece. Furthermore, “connected” and “coupled” are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.
In the present application, it is to be understood by those of ordinary skill in the art that a relative term (for example, “about”, “approximately”, or “basically”) used in conjunction with quantities or conditions is inclusive of the stated value and has the meaning indicated by the context. For example, the relative term includes at least the degree of error associated with the measurement of a particular value, the tolerance resulting from manufacturing, assembly, and usage and associated with a particular value, and the like. Such a term is to be construed as disclosing a range defined by the absolute values of two endpoints. The relative term may refer to plus or minus a certain percentage (such as 1%, 5%, 10%, or more) of an indicated value. A value not modified by the relative term should also be disclosed as a particular value with a tolerance. In addition, when expressing a relative angular position relationship (for example, basically parallel or basically perpendicular), “basically” may refer to plus or minus a certain degree (such as 1 degree, 5 degrees, 10 degrees, or more) based on an indicated angle.
In the present application, it is to be understood by those of ordinary skill in the art that the function implemented by an assembly may be implemented by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function implemented by a part may be implemented by one part, one assembly, or a combination of multiple parts.
In the present application, the terms “upper”, “lower”, “left”, “right”, “front”, “rear”, and other orientation words are described by the orientations and position relations shown in the drawings and should not be understood as a limitation to the examples of the present application. In addition, in the context, it is to be understood that when an element is connected “above” or “below” another element, the element not only can be directly connected “above” or “below” another element but also can be indirectly connected “above” or “below” another element through an intermediate element. It is also to be understood that orientation words such as an upper side, a lower side, a left side, a right side, a front side, and a rear side not only represent positive orientations but also may be understood as lateral orientations. For example, the term “below” may refer to “directly below”, “on a lower left”, “on a lower right”, “on a front lower side”, “on a rear lower side”, and the like.
In the present application, the terms “controller”, “processor”, “central processing unit”, “central processing unit (CPU)”, and “microcontroller unit (MCU)” are interchangeable. Where a unit such as the “controller”, the “processor”, the “central processing unit”, the “CPU”, or the “MCU” is used to implement specific functions, these functions may be implemented by a single one of the preceding units or multiple preceding units unless otherwise indicated.
In the present application, the term “device”, “module”, or “unit” is used to implement a specific function in the form of hardware or software.
In the present application, the terms “computing”, “judging”, “controlling”, “determining”, “identifying”, and the like refer to the operations and processes of a computer system or similar electronic computing device (for example, the controller, the processor, or the like).
In addition to a mower, a push working machine in the present application may also include a push snow thrower, a push warehouse trailer, a picnic trolley, a power trailer, or another self-propelled electrical device. A push mower that can be operated by a user from the rear side of the push device is used as an example for the description below. A functional assembly in the push working machine may be a cutting assembly. For example, the cutting assembly includes a cutting blade or a cutting deck. A functional motor may be understood as a cutting motor.
Referring to
In this example, the mower 100 has a self-propelled control function. The power mechanism can drive the traveling assembly 121 to rotate to drive the mower 100 to move on the ground so that the user does not need to manually push the mower 100 to move and mow. Specifically, the power mechanism may be a traveling motor that can output a driving force for driving the traveling assembly 121 to rotate. In some examples, the handle device 11 of the mower 100 is further integrated with a mowing operation trigger 112b. For example, the mowing operation trigger 112b and the self-propelled operation trigger 112a of the mower 100 are all integrated into the operating member 112. In addition, the self-propelled operation trigger 112a is not limited to a physical switch or a signal switch, and any device that can control the current in a circuit to be on or off is applicable. In fact, the preceding self-propelled operation trigger 112a and/or the preceding mowing operation trigger 112b are not limited to current control and may also control the self-propelled function to be enabled or disabled by mechanical means.
A main control board 200 may be disposed on the body 12 or the handle device 11, and a control circuit 2000 on the main control board 200 can control at least the traveling and/or mowing of the mower 100. As shown in
The power interface 20 may be connected to a direct current (DC) power supply or an alternating current (AC) power supply. The control circuit 2000 may include a circuit capable of performing power conversion on the connected power supply. For example, the control circuit 2000 may include a rectifier circuit, a filter circuit, or a voltage converter circuit capable of rectifying, filtering, or performing boost conversion, buck conversion, or other conversions on the power cord connected to the power interface 20. It is to be understood that the mower 100 may include two or more power interfaces of the same or different types. For example, the mower 100 may include two DC power interfaces connectable to at least two battery packs. In this example, the power interface 20 is used for connecting a battery pack 300 for a power tool. That is to say, the battery pack 300 can supply power to the mower 100 and can also supply power to multiple power tools of different types. For example, the rated voltage of the battery pack 300 is greater than or equal to 40 V, greater than or equal to 36 V, or greater than or equal to 50 V. This example does not specifically limit the appearance and structure of the battery pack 300.
In some examples, the power tool to which the battery pack 300 can supply power may be a handheld power tool, such as a drill, a hedge trimmer, or a sander. Alternatively, the power tool may be a table tool, such as a table saw or a miter saw. Alternatively, the power tool may be a riding power tool, such as a riding mower, a riding vehicle, or an all-terrain vehicle. Alternatively, the power tool may be a robotic tool, such as a robotic mower or a robotic snow thrower. In some examples, the power tool may be an electric drill, an electric lamp, an electric vehicle, or the like. In some examples, the power tool may be a garden tool, such as the hedge trimmer, a blower, or a chain saw. Alternatively, the power tool may be a decoration tool, such as a screwdriver, a nail gun, a circular saw, or the sander. In some examples, the power tool may be a plant care tool, such as a grass trimmer, the hedge trimmer, or the chain saw. Alternatively, the power tool may be a cleaning tool, such as the blower, a snow thrower, or a washer. Alternatively, the power tool may be a drilling tool, such as the drill, the screwdriver, a wrench, or an electric hammer. Alternatively, the power tool may be a sawing tool, such as a reciprocating saw, a jigsaw, or the circular saw. Alternatively, the power tool may be a table tool, such as the table saw, the miter saw, a metal cutter, or an electric router. Alternatively, the power tool may be a sanding tool, such as an angle grinder or the sander. Alternatively, the power tool may be another tool, such as a lamp or a fan.
The first driver circuit 22 is connected between the controller 21 and the traveling motor 23 and is used for driving the traveling motor 23 to operate. In an example, the first driver circuit 22 is electrically connected to stator windings of phases of the traveling motor 23 and is used for transmitting the power supply current to the stator windings to drive the traveling motor 23 to rotate. As an example, as shown in
The second driver circuit 24 is connected between the controller 21 and the cutting motor 25 and is used for driving the cutting motor 25 to operate. For the circuit structure and drive mode of the second driver circuit 24, reference may be made to the circuit structure and drive mode of the first driver circuit 22, and the details are not repeated here.
The controller 21 can detect at least an operating signal generated after the handle device 11 is operated by the user and then control, according to the detected operating signal, the traveling motor 23 and/or the cutting motor 25 to operate. For example, after the user operates the handle device 11 to start the machine, the traveling motor 23 and/or the cutting motor 25 are powered on, and the controller 21 detects a thrust signal from the handle device 11 and then controls the traveling motor 23 to perform moving forward, turning, deceleration, acceleration, or other operations; or the controller 21 detects a mowing signal and controls the cutting motor 25 to operate so that the cutting blade cuts vegetation.
In an example, the user may start the mower 100 by operating the handle device 11, which may include, for example, starting the traveling motor 23 so that the mower 100 starts to move, starting the cutting motor 25 so that the mower 100 starts to mow, or starting the two motors simultaneously so that the mower 100 moves while mowing. For example, when the user operates the handle device 11, a start signal may be generated and transmitted to the controller 21, and the controller 21 can control the motor to start after recognizing the start signal, where the start signal may include a self-propelled start signal and a mowing start signal, and the controller 21 can distinguish between different start signals and control respective motors to start.
In the existing art, to quickly start the mower, a larger starting acceleration is generally set so that the traveling motor 23 or the cutting motor 25 can reach the set target speed in a short time. However, if the starting acceleration of the motor is too large, the smoothness of the speed increase of the motor is reduced, and the operating feel of the user is reduced. If the starting acceleration of the motor is set to be smaller, the startup process is slow, and the requirement of the user for quick startup cannot be satisfied.
In the example of the present application, the starting acceleration of the mower 100 may be controlled, thereby satisfying the requirement of the user for quick startup while ensuring the smoothness of the starting speed.
In an example, in response to the start signal, the controller 21 can control the traveling motor 23 to accelerate to the target self-propelled speed with the variable self-propelled acceleration. In an example, the variable self-propelled acceleration may have at least one change process. For example, if the initial value of the self-propelled acceleration is a1, then during a process of starting the traveling motor 23, the self-propelled acceleration changes once and becomes a2, where a1 is greater than a2, or a1 is less than a2. In other examples, the self-propelled acceleration may have two or more change processes. In some examples, the condition for changing the self-propelled acceleration may be time, a speed threshold, or a combination of the two. For example, the controller 21 may control the self-propelled acceleration to change every preset time or control the self-propelled acceleration to change once when the speed of the traveling motor 23 reaches a preset value. In some examples, the user may operate the handle device 11 to change the self-propelled acceleration.
In an example, the variable mowing acceleration may have at least one change process. For example, if the initial value of the cutting acceleration is a3, then during a process of starting the cutting motor 25, the mowing acceleration changes once and becomes a4. In other examples, the mowing acceleration may have two or more change processes. In some examples, the condition for changing the mowing acceleration may be time, a speed threshold, or a combination of the two. For example, the controller 21 may control the mowing acceleration to change every preset time or control the mowing acceleration to change once when the speed of the cutting motor 25 reaches a preset value. In some examples, the user may operate the handle device 11 to change the mowing acceleration.
In this example, referring to the variation curve of the speed of the traveling motor 23 shown in
The mower 100 shown in
In this example, the external terminal 300 may be a smartphone, a smartwatch, a tablet computer, a virtual reality (VR)/augmented reality (AR) device, a drone, or the like. The smartphone is used as an example for the description in the present application.
The IoT module 27 may support at least one of wired communication technology and wireless communication technology. In an example, the IoT module 27 supports at least one of transmission access, network switching, mobile communications, wireless communications, optical communications, satellite communications, support management, and private network communications. In an example, the IoT module 27 supports at least one of cellular network technology, wireless LAN technology, wireless PAN technology, satellite communication technology, infrared communication technology, optical fiber communication technology, Bluetooth LE technology, LoRa technology, Wi-Fi, and Zigbee. The cellular network technology may include mobile communication technologies such as 2G, 3G, 4G, and 5G and standards such as code-division multiple access (CDMA), the Global System for Mobile Communications (GSM), time division-synchronous code division multiple access (TD-SCDMA), wide code division multiple access (WCDMA), and long-term evolution (LTE). The wireless LAN technology may include Wi-Fi, Bluetooth, ZigBee, and other technologies and is used for wireless communication within the LAN. The wireless PAN technology may include near-field communication (NFC), radio-frequency identification (RFID), and other technologies and is used for short-range wireless communication. The satellite communication technology may include satellite phones, satellite televisions (TVs), satellite navigation, and other technologies and is used for long-range wireless communication. The infrared communication technology may include infrared remote control, infrared data transmission, and other technologies and is used for short-range wireless communication. The optical fiber communication technology may include optical fiber communication, optical fiber sensing, and other technologies and is used for high-speed long-range wireless communication. The LoRa technology is an ultra-long-range wireless transmission solution based on spread spectrum technology.
The user may send at least startup setting data to the IoT module 27 by operating the intelligent terminal 300. The controller 21 may communicate with the IoT module 27 to acquire the startup setting data and may adjust at least the self-propelled acceleration and/or the mowing acceleration according to the startup setting data. That is to say, the startup setting data includes at least setting data for the starting acceleration. In other examples, the startup setting data may include data set for the startup time, startup mode, startup power, or the like.
In this example, the user may send the startup setting data to the mower 100 before the mower 100 is started or may send the startup setting data to the mower 100 during a process of starting the mower 100. That is to say, the user may set the starting acceleration according to the usage requirements before the mower 100 travels and/or mows or change the starting acceleration during the process of starting the mower 100. For example, during the process of starting the mower 100, if the user perceives that the starting speed of the traveling motor 23 is relatively small, then the user may increase the self-propelled acceleration through the intelligent terminal; and if the user perceives that the starting speed of the traveling motor 23 is relatively large, then the user may reduce the self-propelled acceleration through the intelligent terminal.
In an example, after the intelligent terminal 300 establishes a communication connection with the mower 100, the control interface for the mower 100 may be displayed in the terminal application, or at least the starting acceleration adjustment interface for different motors may be displayed. As shown in
The controller 21 may adjust the first acceleration of the traveling motor 23 during starting according to the acquired startup setting data for the traveling motor 23 so that the traveling motor 23 can accelerate to the first speed faster; or the controller 21 may adjust the second acceleration of the traveling motor 23 so that the speed increase of the traveling motor 23 at a high-speed startup stage is smoother. Alternatively, the controller 21 may adjust the third acceleration of the cutting motor 25 during starting according to the acquired startup setting data for the cutting motor 25 so that the cutting motor 25 can accelerate to the third speed faster; or the controller 21 may adjust the fourth acceleration of the cutting motor 25 so that the speed increase of the cutting motor 25 at a high-speed startup stage is smoother.
In an example, the controller 21 may include at least a data storage unit and a control unit, where the data storage unit may acquire and store the startup setting data, and the control unit is configured to adjust at least the self-propelled acceleration and/or the mowing acceleration according to the startup setting data. In this example, the data storage unit may store all historical startup setting data or store at least the last used historical startup setting data, and the control unit may set the self-propelled acceleration and/or the mowing acceleration of the currently started mower 100 according to the historical startup setting data. In this manner, the user's usage habits can be well retained, or at least the user's habit of starting the mower 100 can be retained.
In other examples, the user may adjust different working parameters of the started mower 100 through the intelligent terminal 300. For example, the user may adjust the normal traveling speed of the mower 100, the normal mowing rotational speed, the traveling direction, or the like, not all of which are listed one by one here.
In some examples, the user may reset the function of part of the operating member 112 in the mower 100 through the intelligent terminal 300. For example, through the intelligent terminal 300, the user may redefine the self-propelled operation trigger 112a as the mowing operation trigger 112b and redefine the mowing operation trigger 112b as the self-propelled operation trigger 112a. That is to say, the user may interchange the positions of the self-propelled operation trigger 112a and the mowing operation trigger 112b according to personal usage habits. In some examples, a trigger switching mechanism (not shown) may be disposed in the mower 100, and the user may directly operate the trigger switching mechanism to interchange the positions of the self-propelled operation trigger 112a and the mowing operation trigger 112b.
With continued reference to
In an example, referring to
The basic principles, main features, and advantages of the present application are shown and described above. It is to be understood by those skilled in the art that the preceding examples do not limit the present application in any form, and all technical solutions obtained through equivalent substitutions or equivalent transformations fall within the scope of the present application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202310924711.7 | Jul 2023 | CN | national |
