CN111448884A - Mower and wheeled mobile vehicle - Google Patents

Mower and wheeled mobile vehicle Download PDF

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Publication number
CN111448884A
CN111448884A CN202010054980.9A CN202010054980A CN111448884A CN 111448884 A CN111448884 A CN 111448884A CN 202010054980 A CN202010054980 A CN 202010054980A CN 111448884 A CN111448884 A CN 111448884A
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CN
China
Prior art keywords
power
module
power supply
supply module
mower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010054980.9A
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Chinese (zh)
Inventor
乔勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Positec Power Tools Suzhou Co Ltd
Original Assignee
Positec Power Tools Suzhou Co Ltd
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Filing date
Publication date
Application filed by Positec Power Tools Suzhou Co Ltd filed Critical Positec Power Tools Suzhou Co Ltd
Publication of CN111448884A publication Critical patent/CN111448884A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/76—Driving mechanisms for the cutters
    • A01D34/78—Driving mechanisms for the cutters electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Harvester Elements (AREA)

Abstract

The invention relates to a mower and a wheeled mobile vehicle, which comprises a frame, wheels, a cutting part, functional parts for driving the wheels and the cutting part, and a power source for providing power for the functional parts, and is characterized in that: the power source comprises a first power module fixedly arranged on the frame and a second power module detachably arranged on the frame; the mower is configured to be powered by only the first power supply module, or only the second power supply module, or the first power supply module and the second power supply module are matched to provide power, the second power supply module is added, a wider range can be trimmed at a time, and the cruising ability is better; the second power supply module can be separated from the frame to be charged independently, so that the situation that the whole mower cannot return without electric quantity is avoided, and the charging is more convenient and faster; in addition, the second power supply module can be detached to be used as an independent individual to supply power for different electric tool main bodies, so that the utilization rate of the second power supply module is improved, and the input-output ratio of a user is improved.

Description

Mower and wheeled mobile vehicle
Technical Field
The invention relates to the technical field of mowers, in particular to a mower with a movably mounted power module.
Background
The lawn mower is used for trimming and maintaining the lawn and selecting different types for different terrain environments. For example, for the terrain with larger trimming requirement, such as a golf course or a football field, a riding mower is often adopted, so that the operation is more convenient and faster, and the efficiency is higher.
The existing riding type mowing is generally divided into a gasoline driving type and an electric driving type, the electric driving type has a plurality of advantages of being quieter and more environment-friendly and simpler in structure compared with the gasoline driving type, the gasoline driving type is gradually replaced, but the electric driving type also has the following defects:
the method comprises the following steps that firstly, the power of a battery is limited, the cruising ability of the mower is limited, and the area of single trimming is small;
secondly, operators pay attention to the electric quantity of the battery at any moment, the situation that the battery is exhausted and does not return to a charging point is avoided, if the situation occurs, the operators need to select manpower to push back the whole mower to charge, and the labor and the time are wasted.
In view of the above, there is a need for an improved lawn mower that overcomes the existing deficiencies.
Disclosure of Invention
Therefore, in order to solve the above technical problems, a lawn mower with better cruising ability and more convenient charging needs to be provided.
In order to achieve the purpose, the invention adopts the following technical scheme: a mower comprises a frame, wheels arranged below the frame, a cutting piece, a functional component for driving the wheels and the cutting piece, and a power source for providing power for the functional component,
the power source comprises a first power module fixedly arranged on the frame and a second power module detachably arranged on the frame;
the mower is configured to be powered by only the first power module, only the second power module, or both the first power module and the second power module.
As a further improvement of the present invention, the first power module is a built-in battery mounted on the frame, and the second power module is a universal battery adapted to be mounted on other electric tools to provide power thereto.
As a further improvement of the invention, the frame is also provided with a charging structure for connecting an external power supply to charge the first power supply module and the second power supply module,
the first power module is configured to be charged by the charging structure;
the second power supply module is configured to be separated from the vehicle frame and charged by a charging device to supplement energy, and also can be installed on the vehicle frame to charge the vehicle frame through the charging structure.
As a further improvement of the present invention, the charging structure includes a charging interface for charging the first power supply module and the second power supply module;
or, the charging structure comprises a first charging interface and a second charging interface which are respectively used for charging the first power module and the second power module.
As a further improvement of the invention, the frame is provided with a power supply mounting part for receiving the second power supply module, the power supply mounting part is provided with a sliding groove or a sliding rail,
the second power supply module is provided with an electric energy output port, the power supply installation part is provided with an electric energy input port which is butted with the electric energy output port,
the second power supply module is slidably mounted along the sliding groove or the sliding rail so as to be combined with the power supply mounting part.
As a further improvement of the invention, the mower is a riding mower, and the frame is provided with a support structure for supporting an operator.
As a further improvement of the invention, the functional components comprise a walking motor and a cutting motor, the walking motor drives the wheels to realize the walking function of the mower, the cutting motor drives the cutting piece to realize the cutting function of the mower,
the running state of the mower comprises a first state that the walking motor and the cutting motor work simultaneously and a second state that only the walking motor works.
As a further improvement of the invention, when the mower is in the first state,
only the first power supply module supplies power; or
Only the second power supply module supplies power; or
The first power supply module and the second power supply module are matched for supplying power, and the first power supply module and the second power supply module sequentially supply power; or the first power supply module and the second power supply module supply power simultaneously.
As a further improvement of the present invention, when the first power module and the second power module cooperate to supply power,
the first power supply module and the second power supply module simultaneously supply power to the walking motor and the cutting motor; or
The first power module supplies power to the walking motor and the cutting motor, the first power module stops supplying power when the electric quantity reaches a preset value, and the second power module supplies power to the walking motor and the cutting motor, or
The first power supply module supplies power to the walking motor and the cutting motor, and the second power supply module only supplies power to the walking motor; or
The first power supply module only supplies power for the cutting motor, and the second power supply module only supplies power for the walking motor; or
The first power supply module only supplies power for the cutting motor, the second power supply module only supplies power for the walking motor, when the second power supply module reaches a preset value, the second power supply stops supplying power, and the first power supply supplies power for the cutting motor and the walking motor at the same time.
As a further improvement of the invention, when the mower is in the second state,
only the first power supply module supplies power; or
Only the second power supply module supplies power; or
The first power supply module and the second power supply module are matched for supplying power, and the first power supply module and the second power supply module sequentially supply power; or the first power supply module and the second power supply module supply power simultaneously.
As a further improvement of the present invention, when the first power module and the second power module cooperate to supply power,
the first power supply module and the second power supply module simultaneously supply power to the walking motor; or
The first power module supplies power to the walking motor, when the electric quantity of the first power module is lower than a preset value, the first power module stops supplying power, and the second power module supplies power to the walking motor.
As a further improvement of the present invention, the first power module can supply power to the walking motor and the cutting motor, the second power module can only supply power to the walking motor, and the first power module and the second power module sequentially supply power, or the first power module and the second power module simultaneously supply power.
As a further improvement of the invention, the first power supply module and the second power supply module supply power in sequence,
the first power supply module supplies power firstly, and stops supplying power when the electric quantity of the first power supply module is lower than a preset value, and the second power supply module supplies power.
As a further improvement of the present invention, the lawn mower further comprises a protection unit, wherein the protection unit is configured to limit the cutting motor to stop the cutting motor after the power of the first power module is lower than a preset value.
As a further improvement of the present invention, the first power module can supply power to the walking motor and the cutting motor, the second power module can also supply power to the walking motor and the cutting motor, and the first power module and the second power module supply power in sequence, or the first power module and the second power module supply power at the same time.
As a further development of the invention, the lawn mower further comprises a control unit,
the control unit can acquire the electric quantity information of the first power supply module and the second power supply module,
and the control unit controls the power supply of the first power supply module and the second power supply module according to the electric quantity information.
As a further development of the invention, the lawn mower further comprises a control unit,
the control unit comprises
A cutting control unit connected with the cutting motor to control the cutting motor;
the walking control unit is connected with the walking motor so as to control the walking motor;
the first power supply module control unit is connected with the first power supply module to acquire the electric quantity information of the first power supply module and control the power supply of the first power supply module;
the second power module control unit is connected with the second power module to acquire the electric quantity information of the second power module and control the power supply of the second power module;
the cutting control unit, the walking control unit, the first power module control unit and the second power module control unit are in communication connection, so that power supply of the first power module and the second power module is controlled according to electric quantity information.
As a further improvement of the invention, a preset value of the electric quantity of the first power supply module is prestored in the control unit,
when the electric quantity of the first power supply module is larger than the preset value, the control unit controls the first power supply module to supply power through the first power supply module, and controls the second power supply module to enable the second power supply module not to supply power;
when the electric quantity of the first power supply module is lower than the preset value, the control unit controls the first power supply module to enable the first power supply module not to supply power, and the control unit controls the second power supply module to supply power through the second power supply module.
As a further improvement of the invention, the first power supply module is a single battery pack, or
The first power supply module comprises a plurality of battery packs, and the plurality of battery packs are independently connected in series in the first power supply module in a selectable mode, so that the first power supply module obtains higher voltage relative to any single battery pack;
or a plurality of independent battery packs can be connected in parallel in the first power supply module in a selectable mode, so that the first power supply module obtains larger capacity relative to any single battery pack.
As a further improvement of the invention, the second power supply module is a single battery pack, or
The second power supply module comprises a plurality of battery packs, and the plurality of battery packs are independently connected in series in the second power supply module in a selectable mode, so that the second power supply module obtains higher voltage relative to any single battery pack;
or a plurality of independent battery packs can be connected in parallel in the second power supply module in a selected mode, so that the second power supply module obtains larger capacity relative to any single battery pack.
As a further improvement of the present invention, the second power module includes two battery packs, the voltages of the two battery packs are the same, and the two battery packs are connected in series.
As a further improvement of the invention, the rated voltage of the battery pack is 36-230V, and the rated voltage of the battery pack is 12-80V.
As a further improvement of the present invention, the second power module includes a plurality of battery packs, the second power module includes a housing, the plurality of battery packs are supported in the housing, the housing is provided with an electric energy output port, and the plurality of battery packs are independent of each other and are selectively connected in series or in parallel and then output energy through the electric energy output port.
As a further improvement of the invention, the power supply mounting portion includes a drawer housing capable of being slidably drawn on the frame, the power supply input port is located in the drawer housing, and the second power supply module is mounted in the drawer housing.
As a further improvement of the present invention, the power supply mounting portion is a docking space provided on the frame for the second power supply module to be inserted into, and an electric energy input port is provided at the bottom of the docking space.
As a further improvement of the invention, the lawn mower is further provided with an output electrical interface electrically connected with the first power supply module and/or the second power supply module, and the output electrical interface is configured to output DC power and/or AC power for supplying or charging other devices.
As a further improvement of the present invention, the lawn mower is further provided with an output port electrically connected to the first power module and/or the second power module, wherein the output port is configured to output DC power for supplying or charging other DC devices;
the lawn mower comprises an accessory structure electrically connected with the output port, the accessory structure is used for being connected with the output port to convert the DC electric energy into AC electric energy, and an output electrical interface is arranged on the accessory structure to output the AC electric energy to supply power or charge other alternating current devices.
As a further improvement of the invention, the voltage of the AC electric energy can be AC110-240V, and the AC voltage is AC110, AC120, AC 230;
the voltage of the DC electric energy can be DC20-120V, and the DC voltage is DC20V, DC40V, DC60V, DC80V and DC 120V.
As a further improvement of the present invention, the lawn mower further includes a monitoring circuit, and the monitoring circuit is configured to monitor the electric quantity of the first power module and the second power module.
As a further improvement of the present invention, the first power module and the second power module are dc power supplies.
The invention also provides a control method of the mower, the mower further comprises a control unit, and the control method protects the following steps:
acquiring electric quantity information of the first power supply module, and transmitting the electric quantity information to the control unit;
acquiring electric quantity information of the second power supply module, and transmitting the electric quantity information to the control unit;
the control unit processes the electric quantity information and outputs corresponding instructions to the first power supply module and the second power supply module.
As a further improvement of the invention, a preset value of the electric quantity of the first power supply module is prestored in the control unit,
the control unit judges the electric quantity information and the preset value of the first power supply module,
when the electric quantity of the first power supply module is larger than the preset value, the control unit sends an instruction to the second power supply module so that the second power supply module does not supply power;
when the electric quantity of the first power supply module is not larger than the preset value, the control unit sends an instruction to the first power supply module so that the first power supply module does not supply power.
As a further improvement of the invention, the functional components comprise a walking motor and a cutting motor,
when the electric quantity of the first power supply module is lower than the preset value, the control unit sends an instruction to the cutting motor so that the cutting motor does not operate.
The invention also provides a wheeled mobile vehicle, which comprises a vehicle frame, wheels arranged below the vehicle frame, functional parts for driving the wheels, and a power source for providing power for the functional parts,
the power source comprises a first power module arranged on the frame and a second power module movably arranged with the frame;
the wheeled mobile vehicle is configured to be powered by only the first power module, only the second power module, or both the first power module and the second power module.
As a further improvement of the present invention, the first power module is a built-in battery mounted on the frame, and the second power module is a universal battery adapted to be mounted on other electric tools to provide power thereto.
As a further improvement of the invention, the frame is also provided with a charging structure for connecting an external power supply to charge the first power supply module and the second power supply module,
the first power module is configured to be charged by the charging structure;
the second power supply module is configured to be separated from the vehicle frame and charged by a charging device to supplement energy, and also can be installed on the vehicle frame to charge the vehicle frame through the charging structure.
As a further improvement of the present invention, the charging structure includes a charging interface for charging the first power supply module and the second power supply module;
or, the charging structure comprises a first charging interface and a second charging interface which are respectively used for charging the first power module and the second power module.
As a further improvement of the invention, the frame is provided with a power supply mounting part for receiving the second power supply module, the power supply mounting part is provided with a sliding groove or a sliding rail,
the second power supply module is provided with an electric energy output port, the power supply installation part is provided with an electric energy input port which is butted with the electric energy output port,
the second power supply module is slidably mounted along the sliding groove or the sliding rail so as to be combined with the power supply mounting part.
As a further improvement of the invention, the power supply mounting part is a box body arranged on the frame, and the second power supply module is detachably mounted in the box body.
As a further improvement of the present invention, the first power supply module and the second power supply module are connected in parallel.
As a further improvement of the invention, the second power supply module is a single battery pack, or
The second power supply module comprises a plurality of battery packs, and the plurality of battery packs are independently connected in series in the second power supply module in a selectable mode, so that the second power supply module obtains higher voltage relative to any single battery pack;
or a plurality of independent battery packs can be connected in parallel in the second power supply module in a selected mode, so that the second power supply module obtains larger capacity relative to any single battery pack.
As a further improvement of the present invention, the second power module includes two battery packs, the voltages of the two battery packs are the same, and the two battery packs are connected in series.
As a further improvement of the present invention, the first power module and the second power module may sequentially supply power; or the first power supply module and the second power supply module supply power simultaneously.
As a further improvement of the present invention, when the first power module and the second power module supply power in sequence,
the first power supply module supplies power firstly, and stops supplying power when the electric quantity reaches a preset value, and the second power supply module supplies power.
As a further improvement of the present invention, the wheeled mobile vehicle further includes a control unit, the control unit acquires the electric quantity information of the first power module and the second power module,
and the control unit controls the power supply of the first power supply module and the second power supply module according to the electric quantity information.
As a further improvement of the invention, the wheeled mobile vehicle can be a mower, a scooter or an electric bicycle.
The invention also provides a wheeled mobile vehicle which comprises a frame, wheels arranged below the frame, a functional component for driving the wheels, and a power source for providing power for the functional component, wherein the power source comprises a first power module arranged on the frame, and a power supply mounting part for receiving a second power module is arranged on the frame, so that the wheeled mobile vehicle can be configured to be powered by only the first power module, only the second power module, or the first power module and the second power module in a matching way.
As a further improvement of the present invention, the wheeled mobile vehicle is a mower, and the wheeled mobile vehicle further includes a cutting member; or the wheeled moving vehicle is a scooter; or the wheeled moving vehicle is an electric bicycle.
Compared with the prior art, the electric quantity of the mower is increased by arranging the second power supply module, a wider range can be trimmed at a time, and the cruising ability is better; the second power supply module can be separated from the frame to be charged independently, so that the situation that the whole mower cannot return without electric quantity is avoided, and the charging is more convenient and faster; in addition, the second power supply module can be detached to be used as an independent individual to supply power for different electric tool main bodies, so that the utilization rate of the second power supply module is improved, and the input-output ratio of a user is improved.
Drawings
FIG. 1 is a block diagram of a mower configuration according to the present invention;
FIG. 2 is a block diagram of another mower configuration provided by the present invention;
FIG. 3 is a front view of yet another lawnmower provided in accordance with the present invention;
FIG. 4 is a top view of a cutting element of the mower of the present invention;
FIG. 5 is a block diagram of one embodiment of a second power module of the lawn mower of the present invention;
FIG. 6 is a partial view of the power mount of the mower of the present invention;
fig. 7 is a block diagram of a control unit of the lawn mower of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, the present invention provides a lawn mower 100, where the lawn mower 100 includes a frame 1, wheels 2 mounted under the frame 1, a cutting element 16, functional components for driving the wheels 2 and the cutting element 16, and a power source for providing power to the functional components, and the lawn mower 100 drives the wheels 2 to implement its walking function through the functional components, and drives the cutting element 16 to implement its cutting function through the functional components. This lawn mower is a wheeled locomotive, and this application is not limited to the protection lawn mower, still includes other wheeled locomotives, other locomotive structures such as scooter, electric bicycle.
As shown in fig. 3, the frame 1 is a skeleton of the mower 100, and has an overall shape similar to that of a tractor head. All install the setting on frame 1 for devices such as wheel 2, cutting member 16, functional part, power supply, and operating personnel is located frame 1 all the time in lawn mower 100 operation process, and lawn mower 100 of this application is a formula of riding lawn mower 100, compares traditional hand propelled lawn mower 100, has avoided operating personnel to walk and need the walking of application of force control lawn mower 100 at lawn mower 100 rear portion, uses more convenient laborsaving. The frame 1 needs to be made of a metal material with certain strength to meet the strength requirement, and cost control is considered, and the metal material is preferably made of a steel material.
The wheels 2 are attached to the lower side of the frame 1 to realize the traveling function of the mower 100, and in the present application, the forward traveling direction of the mower 100 is defined as the front-rear direction, and the forward traveling direction perpendicular to the mower 100 and located on the horizontal plane is defined as the left-right direction. The wheels 2 may be conventional tired wheels, but also crawler wheels.
The wheel 2 includes a driving wheel driven by the functional component, and a driven wheel driven by the driving wheel. The driving wheels can be one or a pair. The number of wheels 2 may be three or four. When the wheels 2 are three, the wheels 2 may include one front wheel and two rear wheels. Preferably, the number of the wheels 2 is four, and the wheels include a pair of front wheels and a pair of rear wheels, the pair of rear wheels are driving wheels, the pair of front wheels are driven wheels, the rear wheels are driving wheels, so that the better acceleration and climbing capabilities can be obtained, the operator is generally positioned at the middle rear part of the frame 1 to obtain a better operation view angle, and the rear wheels drive the center of gravity of the mower 100 to be inclined backwards, so that the operator can feel more comfortable.
The frame 1 is also provided with a direction control unit, a speed control unit, and a support structure 7 for supporting an operator, the operator is positioned on the support structure 7, the direction control unit is operated to control the traveling direction of the mower 100, and the speed control unit is operated to control the traveling speed of the mower 100.
The wheels 2 comprise reversing wheels, the reversing wheels can be partial wheels 2 or all wheels 2, and the direction control assembly controls the reversing wheels to change the walking direction of the mower 100 by turning with the turning radius. The turning radius can be zero, and at the moment, the mower 100 realizes zero-degree steering, namely steering at 0-360 degrees in situ, and can realize the steering by opposite wheel steering and the same rotating speed; or a non-zero value, in which case the mower 100 achieves normal steering, which can be achieved by a difference in wheel speeds, etc. The direction control component can be a steering wheel, and the steering wheel is driven to steer by rotating the steering wheel; the steering wheel can also be a direction control rod, and the steering wheel is driven to steer by operating the direction control rod.
In one embodiment, the steering assembly is a steering wheel, the wheels 2 comprise a pair of front wheels and a pair of rear wheels, and the steering wheel comprises a pair of front wheels, and the steering wheel is controlled to realize normal steering with a non-zero turning radius. In another embodiment, the direction control assembly is a direction control rod, and the wheels 2 include a pair of front wheels and a pair of rear wheels, which are all steering wheels, and can realize zero-degree steering by controlling all the steering wheels, or alternatively realize conventional steering. Preferably, when two different steering modes, namely zero-degree steering and conventional steering, are realized, an operator operates the direction control lever by two different operation methods, but the operation method is not limited to this, and the number of the direction control levers can also be two, one realizes the zero-degree steering, and the other realizes the conventional steering. The combination of the direction control assembly and the steering wheel is not limited to the above two, and other combinations are also possible. In addition, the direction control assembly also includes structure to enable the mower 100 to walk backwards.
Speed control assembly controls mower 100 may be in the form of a foot-operated pedal or a manually-operated speed control lever, and is not limited thereto. For example, while the speed control assembly may include only a pedal assembly, the pedal assembly may include an accelerator pedal, a brake pedal. When the speed control assembly only comprises the speed control rod, the functions of acceleration and braking can be realized simultaneously through one speed control rod, and the functions of acceleration and braking can also be realized through two different speed control rods respectively. The speed control assembly can also be a combination of a pedal and a speed control rod, comprises the speed control rod for controlling acceleration and also comprises a pedal for realizing a braking function.
The mower 100 can realize stepless speed regulation of the speed through the speed control assembly, but the speed control assembly is not limited to the speed regulation, the frame 1 can also be provided with a gear assembly, low, medium and high gears are limited through the gear assembly, and the mower 100 can realize speed regulation in the set low, medium and high gears through the speed control assembly.
The support structure 7 may be a seat on which an operator sits for convenient operation. The support structure 7 may also be a standing platform on which the operator stands, and since no seat is required, the structure of the lawn mower 100 can be more compact and less costly.
In one embodiment, the speed control components are an accelerator pedal and a brake pedal, the support structure 7 is a seat, and the direction control components are a steering wheel, and it is more convenient for an operator to sit on the seat to operate.
In other embodiments, the direction control assembly is a direction control lever, and the mower 100 can be simpler to construct than a structure having a steering wheel; the speed control assembly comprises a speed control rod for controlling acceleration, and when the supporting structure 7 is a seat, the speed control assembly also comprises a pedal for realizing a braking function; when the support structure 7 is a standing platform, the speed control assembly further comprises another speed control lever for performing a braking function, thus avoiding the situation that the operator needs to operate with his feet on the standing platform to cause the operator to stand stably.
The direction control assembly and the speed control assembly are both mechanical structures, but the invention is not limited to the direction control assembly and the speed control assembly. The mower 100 can further comprise a control panel, the direction control assembly and the speed control assembly can comprise electronic structures, and the control panel is connected with the electronic structures to control the walking direction and the walking speed of the mower 100 in an electronic mode.
As shown in fig. 4, the cutting member 16 may be one or more, and is installed below the frame 1 to perform the mowing function of the mower 100, and preferably, the cutting member 16 adopts a double-blade disc structure to ensure the cutting performance thereof. The mower 100 further comprises a cutting control assembly and a height adjusting assembly, wherein an operator controls the opening and closing of the cutting piece 16 and the rotating speed of the cutting piece 16 through the cutting control assembly, and controls the cutting height of the cutting piece 16 through the height adjusting assembly. The cutting control assembly can be realized by setting a mechanical gear switch, and can also be realized by a control panel, which is not limited herein.
The functional components include motors that power the wheel 2 and cutter 16, respectively. The motor is a direct current motor, and the rated voltage of the motor can be 36V-230V, such as 36V, 60V, 80V, 120V, 160V and 230V. In addition, the direct current motor is preferably a direct current brushless motor, and the whole service life of the direct current motor is longer.
Specifically, the motors are divided into a walking motor 4 and a cutting motor 9, the walking motor 4 drives wheels to realize the walking function of the mower 100, the cutting motor 9 drives the cutting piece 16 to realize the cutting function of the mower 100, and the two motors operate independently. And the control of the cutting function and the control of the walking function of the mower 100 are independent and do not interfere with each other, i.e. the mower 100 can only walk without cutting, can also walk while cutting, and can also not walk but only cut. The cutting motor 9 may comprise one or more motors. The total output power of the walking motor 4 is not more than 2500W, and the total output power of the cutting motor 9 is not more than 4000W. Preferably, the lawn mower 100 further comprises a safety switch, and after the safety switch is closed, the control over the cutting function and the walking function can be realized, so that the injury caused by misoperation of a user is avoided.
The rear side of the frame 1 is also provided with a grass collecting box for collecting grass clippings generated by mowing by the cutting piece 16. The grass collecting box is detachable from the frame 1, so that the operators can pour the grass clippings conveniently.
The power source is a direct current power source matched with the direct current motor and comprises a first power module 5 installed in the frame and at least one second power module 6 detachably installed with the frame. The lawn mower 100 is configured to be powered by only the first power module 5, only the second power module 6, or both the first power module 5 and the second power module 6. The first power supply module 5 and the second power supply module 6 are arranged in parallel in the circuit, or are arranged independently of each other in the circuit, or may be connected in series.
Specifically, the first power module 5 is fixedly mounted in the frame 1, and is actually a built-in battery. The first power module may be a single battery pack 51, or may be a plurality of battery packs 51, and several battery packs 51 may be independently connected in series in the first power module 5, so that the first power module 5 obtains a higher voltage relative to any single battery pack 51; or several battery packs 51 may be individually selectively connected in parallel within the first power module 5 to allow the first power module to achieve a greater capacity than any single battery pack 51. The battery pack 51 is formed by combining a plurality of battery cells, which may be a lithium battery, a nickel-metal hydride battery, a nickel-cadmium battery, a graphene battery, or lithium iron phosphate, and is not limited herein. The single battery pack 51 can hold more electric power under the condition of lower cost so as to meet the operation requirement of the mower 100, and the cost performance is higher. The rated voltage of the single battery pack 51 is 36V to 230V, preferably 48V, 80V.
The second power module 6 is detachably and movably mounted with the frame 1, and the frame 1 is provided with a power mounting part 13 for receiving the connection of the second power module 6 to provide power. As shown in fig. 6, the power supply mounting portion 13 is provided with a sliding slot or a sliding rail structure 134, and the second power supply module 6 is slidably mounted through the sliding slot or the sliding rail structure 134, so as to combine the second power supply module 6 with the power supply mounting portion 13. One slide rail configuration is shown in fig. 6. The power supply mounting portion 13 may be a mounting groove, or may be a receiving cavity for receiving the second power supply module 6, or other connection structure capable of movably mounting the second power supply module 6 on the frame 1. The second power module 6 is provided with an electric energy output port, and the power supply installation part 13 is provided with an electric energy input port in butt joint with the electric energy output port. The electric energy input port may include a wiring bar electrically connected to the second power module 6, the wiring bar includes a plurality of connection terminals held in the base by a base machine having a butt joint face, the second power module 6 is mounted in the mounting portion, and the electric energy output port of the second power module 6 is fitted to the butt joint face and electrically connected to the corresponding connection terminals.
In some embodiments, the power supply mounting portion 13 includes a drawn-out housing 61 capable of being slidably drawn out on the vehicle frame 1, the power input port is located in the drawn-out housing 61, the second power supply module 6 is mounted in the drawn-out housing 61, and the power output port and the power input port are electrically connected.
The detachable form of the second power module 6 and the frame 1 may also be other, for example, the power installation portion 13 is disposed on the frame 1 to provide a docking space for the second power module 6 to be inserted into, a connection terminal electrically connected to the second power module 6 is disposed at the bottom of the docking space, or the power installation portion 13 is a box disposed on the frame, and the second power module is detachably installed in the box without limitation. However, the second power module 6 needs to be designed in consideration of reliability, convenience, sealing, dust-proof performance, water-proof performance, and the like of connection with the vehicle body frame 1.
By arranging the second power supply module, the electric quantity is increased, a wider range can be trimmed at a single time, and the cruising ability is better; the second power supply module can be separated from the frame to be charged independently, so that the situation that the whole mower cannot return without electric quantity is avoided, and the charging is more convenient and faster; in addition, the second power supply module can be detached to be used as an independent individual to supply power for different electric tool main bodies, so that the utilization rate of the second power supply module is improved, and the input-output ratio of a user is improved.
The second power module 6 may be a single battery pack 62 with a power outlet electrically connected to a power inlet. Preferably, the voltage of the individual battery pack 62 is 12-80V, and more preferably, the voltage of the individual battery pack 62 is 20V. The second power module 6 may also be a whole formed by combining a plurality of battery packs 62, and the plurality of battery packs 62 are independently and selectively connected in series in the second power module 6, so that the second power module 6 obtains a higher voltage than any single battery pack 62; or several battery packs 62 may be selected independently in parallel within the second power module 6 to allow the second power module 6 to achieve a greater capacity than any single battery pack 62. The single battery pack 62 may be a lithium battery, a nickel metal hydride battery, a nickel cadmium battery, a graphene battery, or lithium iron phosphate, etc., and is not limited herein. The rated voltage of the battery pack 62 is 12-80V, preferably 20V.
Preferably, the second power module 6 includes two battery packs 62, the voltage of the two battery packs 62 is the same, and both the two battery packs 62 are connected in series.
Preferably, as shown in fig. 5, the second power module 6 includes a housing 61, a plurality of battery packs 62 are supported in the housing 61, the power outlet is located on the housing 61, and the plurality of battery packs 62 are independent of each other and are selectively connected in series or in parallel to output power through the power outlet. At this time, the number of the second power modules 6 may also be single or multiple, when the number of the second power modules 6 is multiple, the power supply installation part 13 may be provided with a plurality of power supply input ports corresponding to the plurality of second power modules 6, and the plurality of second power modules 6 are respectively installed on the frame 1; but not limited to, a plurality of second power modules 6 may be connected into a whole and then installed together with the correspondingly arranged power input port through one or more power output ports, that is, the whole is installed with the vehicle frame 1.
It is understood that the plurality of battery packs 62 may be all connected in series, all connected in parallel, or a portion of the series connection and a portion of the parallel connection; the voltages of the plurality of battery packs 62 may be the same as or different from each other; a plurality of battery packs 62 are fixedly or detachably supported independently of each other in the case 61. Illustratively, the power source has a voltage of 80V, and the second power module 6 can include 4 series-connected battery packs 62 rated at 20V, and the battery packs 62 are detachably mounted on the housing 61. But not limited to this, the second power module 6 may further include 1 battery pack 62 rated at 40V and 2 battery packs 62 rated at 20V connected in series, the 40V battery pack 62 is fixedly mounted to the housing 61, and the 2OV battery pack 62 is detachably mounted to the housing 61. When the battery pack 62 is detachably attached to the housing 61, the battery pack 62 can be replaced with a new one after the battery pack 62 is worn due to long-term discharge, and in addition, a single battery pack 62 can be used alone in other tool bodies to improve the utilization rate, and the single battery pack 62 is a general battery pack 62. Preferably, the voltage of the battery packs 62 of the second power module 6 may be 20V each, combined by several identical battery packs 62.
The connection structure of the battery pack 62 and the housing 61 may be that a receiving position is arranged in the housing 61, the receiving position has a receiving interface matched with the interface of the battery pack 62, the battery pack 62 is movably or fixedly installed in the receiving position, and the battery pack 62 and the electric energy output port are electrically connected through the receiving interface.
The second power module 6 may be mounted on the lawn mower 100 to power the lawn mower 100, or may be detached from the lawn mower 100 as a separate individual to power a plurality of different power tool bodies, for example: the grass trimmer, the chain saw, the blower, the blowing and sucking machine and the like form a power sharing system, so that the utilization rate of the second power module 6 is improved, and the input-output ratio of a user is improved.
It will be appreciated that the second power module 6 may be mounted directly on the mower 100 to power the mower 100, or may be removed from the mower 100 as a separate unit to power a plurality of different power tool bodies, for example: the grass trimmer, the chain saw, the blower, the blowing and sucking machine and the like form a power sharing system, so that the utilization rate is improved. That is, the second power module 6 is actually a universal battery, the single battery pack 62 of the second power module 6 may be universal to supply power to other power tools, or the second power module may be universal to supply power to other power tools.
Still be equipped with on the frame 1 and be used for connecting the external power source and charge the structure that charges for the power supply, first power module 5 is configured to install and charges through the structure that charges on frame 1, and second power module 6 is configured to can be separated with frame 1 and is charged the supplementary energy by battery charging outfit to it, also can install and charge to it through the structure that charges on frame 1 to second power module 6 need not frequent dismantlement from frame 1 and charges, has improved the convenience that second power module 6 used.
Specifically, the charging structure may include only one charging interface, that is, both the first power module and the second power module can be charged through the charging interface, and the structure is simple; the charging interfaces can be connected with the first charging interface 53 and the second charging interface 63, different charging interfaces respectively charge the first power module 5 and the second power module 6, and the charging interfaces are independent of each other, so that the charging management of the first power module 5 and the second power module 6 is clearer.
The first power module 5 supplies power for the walking motor 4 and/or the cutting motor 9, the second power module supplies power for the walking motor 4 and/or the cutting motor 9, and the first power module 5 and the second power module 6 can supply power sequentially or simultaneously to achieve the cutting and walking functions of the mower.
The lawnmower 100 has a first state in which the walk function and the cutting function are simultaneously realized, and a second state in which only the walk function is realized.
When the lawn mower 100 is in the first state: the first power module 5 may be powered only, i.e. the first power module 5 drives both the travel motor 4 and the cutting motor 9. It is also possible that the power is supplied only by the second power supply module 6, i.e. the second power supply module 6 drives both the travel motor 4 and the cutting motor 9. The first power supply module 5 and the second power supply module 6 can be matched to provide power, and the first power supply module and the second power supply module sequentially supply power; or the first power supply module and the second power supply module supply power simultaneously. For example, the first power module 5 and the second power module 6 provide power simultaneously to drive the walking motor 4 and the cutting motor 9 together; or, the first power module 5 provides power to drive the walking motor 4 and the cutting motor 9, when the electric quantity of the first power module 5 is lower than a certain quantity, the first power module 5 stops supplying power, the second power module 6 provides power to drive the walking motor 4 and the cutting motor 9, the certain quantity is a preset value, and can be 10% of electric quantity, 5% of electric quantity and 0 electric quantity, and the quantity lower than the preset value is limited not to be larger than the preset value in the application; or the first power module 5 drives the walking motor 4 and the cutting motor 9, and the second power module 6 also drives the walking motor 4 at the same time; or the first power module 5 drives the cutting motor 9, and the second power module 6 drives the walking motor 4; or the first power module 5 drives the cutting motor 9, the second power module 6 drives the walking motor 4, when the electric quantity of the second power module 6 is lower than the preset value, the second power module 6 stops supplying power, and the first power module 5 drives the walking motor 4 and the cutting motor 9, which is not limited to the above listed ones, and other ways of realizing that the first power module 5 and the second power module 6 provide power when the mower 100 is in the first state are all within the protection scope of the present application.
When the mower 100 is in the second state: the first power module 5 may only provide power, i.e. the first power module 5 drives the travel motor 4. The second power module 6 may only provide power, i.e. the second power module 6 drives the walking motor 4. The first power module 5 and the second power module 6 can also cooperate to provide power, for example, the first power module 5 and the second power module 6 provide power to drive the walking motor 4 together; or, the first power module 5 first provides power to drive the walking motor 4, when the electric quantity of the first power module 5 is lower than the preset value, the first power module 5 stops supplying power, and the second power module 6 provides power to drive the walking motor 4, which is not limited to the above listed ones, and other methods for realizing that the first power module 5 and the second power module 6 provide power when the mower 100 is in the second state are within the protection scope of the present application.
The power feeding method of the lawnmower 100 in the first state and the second state may be a combination of a plurality of power feeding methods selected and arranged in the different states.
The lawn mower 100 further comprises a third state in which only the cutting function is enabled, the lawn mower 100 being in the third state: the cutting motor 9 may be powered by the first power module 5 only, i.e. the first power module 5. The power may be provided only by the second power module 6, i.e. the second power module 6 drives the cutting motor 9. The first power module 5 and the second power module 6 can also be used for supplying power in a matching way, for example, the first power module 5 and the second power module 6 simultaneously supply power to drive the cutting motor 9 together; or, the first power module 5 first provides power to drive the cutting motor 9, when the electric quantity of the first power module 5 is lower than the preset value, the first power module 5 stops supplying power, and the second power module 6 provides power to drive the cutting motor 9, which is not limited to the above-mentioned ones, and other methods for realizing that the first power module 5 and the second power module 6 provide power when the lawn mower 100 is in the third state are within the protection scope of the present application.
In some embodiments, the first power module and the second power module can both supply power to the walking motor 4 and the cutting motor 9, specifically, the first power module and the second power module can supply power simultaneously, or the first power module supplies power first, and when the electric quantity is lower than a preset value, the first power module stops supplying power, and the second power module supplies power.
In particular, the mower is configured such that in a first state, the first power module 5 and the second power module 6 provide power simultaneously; in the second state, the first power module 5 and the second power module 6 provide power simultaneously.
In addition, the lawn mower can also be configured to provide power for the first power module 5 and the second power module 6 simultaneously when in the first state; in the second state, the second power module 6 provides power. The present invention is not limited to the above two types, and other combinations of the first state, the second state, and the third state also achieve that the first power module 5 and the second power module 6 can be both the traveling motor 4 and the cutting motor 9.
Preferably, the second power module 6 is adapted to power the cutting motor 9 and the walking motor 4 when their power is within a certain range. It will be appreciated that the second power module 6 has a limit to output power that differs from the first power module 5. Specifically, the power output by the first power module 5 is better than the power output by the second power module 6. For the mowing performance of the mower, the cutting motor 9 is preferentially driven by the first power module 5, and when the cutting motor 9 is driven by the second power module 6, a certain condition, for example, power, needs to be defined, that is, when the cutting motor 9 is driven by the second power module 6, the power of the cutting motor 9 becomes small.
In one embodiment, the first power module 5 can supply power to the travel motor 4 and the cutting motor 9, the second power module 6 can only supply power to the travel motor 4, the first power module and the second power module supply power in sequence, or the first power module and the second power module supply power simultaneously.
In particular, the mower 100 is configured to be powered by only the first power module 5 when in the first state; when the power supply is in the second state, only the second power supply module 6 provides power; in the third state, power is provided only by the first power module 5.
Additionally, the lawn mower 100 may also be configured to be powered by the first power module 5 and the second power module 6 when in the first state; when the power supply is in the second state, the first power supply module 5 supplies power, and the second power supply module 6 supplies power after the electric quantity of the first power supply module 5 is lower than the preset value. In the third state, power is provided only by the first power module 5.
Preferably, the lawn mower 100 is configured such that in the first state, only the first power module 5 provides power; when the power supply is in the second state, if the electric quantity of the first power supply module is not lower than the preset value, the first power supply module 5 provides power firstly, after the electric quantity of the first power supply module 5 is lower than the preset value, the second power supply module 6 provides power, and if the electric quantity of the first power supply module is lower than the preset value, the second power supply module 6 provides power, namely the first power supply module 5 and the second power supply module 6 provide power in sequence. If the lawn mower 100 also has the third state, power is supplied by the first power module 5. The mower 100 further comprises a protection unit B for limiting the cutting motor 9 to stop the cutting motor 9 when the power of the first power module 5 is lower than a preset value.
Without being limited to the above, other combinations in the first state, the second state, and the third state may also implement that the first power module is the traveling motor 4 and the cutting motor 9, and the second power module only supplies power to the traveling motor 4.
In addition, the lawn mower 100 may further include a monitoring circuit for monitoring the power of the first power module 5 and the second power module 6.
The mower is also provided with an output electrical interface 8 electrically connected with the first power supply module and/or the second power supply module, and the output electrical interface 8 is configured to output AC110-240V and DC 20-120V. Preferably, the output electrical interface 8 is configured to output AC110, AC120, AC230, DC20V, DC40V, DC60V, DC80V, DC 120V. The lawn mower 100 may also power and/or charge a plurality of other electric users via the output electrical interface 8, for example, a mobile phone, or other tool bodies may be charged via the output electrical interface 8, or other tool bodies may be driven to operate, for example: the application range of the main body of the tool is expanded by a grass trimmer, a blower, a blowing and sucking machine, a chain saw and the like.
Specifically, an output port is arranged on the frame, and the output port is an output electrical interface and can directly output DC voltage; in addition, the output port can also be connected with an inverting and voltage-boosting circuit to output AC voltage, the inverting and voltage-boosting circuit can be arranged in the frame, and the output port is an output electrical interface at the moment and can directly output AC voltage; this contravariant and step-up and step-down circuit can also locate outside the frame, integrated and an annex structurally, and this annex structure can be connected output voltage with the delivery outlet electricity, and this annex structure output voltage's structure is output electrical interface. In this application, it is preferential, contravariant and step-up and step-down circuit locate an annex structurally. The accessory structure may also be connected directly to the second power module 6 to output AC voltage to power or charge other tools.
Preferably, the output electrical interface 8 is configured to electrically connect with the first power supply module 5. And the output electrical interface outputs the voltage of the AC120V, illustratively, the rated voltage of the first power module 5 is 80V, and the output electrical interface and the first power module 5 output the AC120V through an inverter and booster circuit. Or the first power supply module 5 is rated at 160V, and the power output interface and the first power supply module 5 output AC120V through an inversion and voltage reduction circuit.
As shown in fig. 7, the lawn mower 100 further includes a control unit a, the control unit a can obtain the electric quantities of the first power module 5 and the second power module 6, and the control unit a controls the power supply of the first power module 5 and the second power module 6 according to the electric quantity information. Specifically, the control unit a includes a cutting control unit W1, which is connected to the cutting motor 9 to control the cutting motor 9; a walking control unit W2 connected to the walking motor 4 to control the walking motor 4; a first power module control unit W3, connected to the first power module 5, to obtain information on electric quantity of the first power module 5 and control power supply of the first power module 5; a second power module control unit W4, connected to the second power module 6, to obtain information on electric quantity of the second power module 6 and control power supply of the second power module 6; the cutting control unit W1, the walking control unit W2, the first power module control unit W3 and the second power module control unit W4 are in communication connection, so that power supply of the first power module 5 and the second power module 6 is controlled according to electric quantity information.
In one embodiment, a preset value of the electric quantity of the first power module 5 is prestored in the control unit a, when the electric quantity of the first power module 5 is greater than the preset value, the control unit a controls the first power module 5 to supply power through the first power module 5, and controls the second power module 6 to stop supplying power to the second power module 6; when the electric quantity of the first power module 5 is lower than the preset value, the control unit a controls the first power module 5 to make the first power module 5 not supply power, and controls the second power module 6 to supply power through the second power module 6.
That is, the control method of the lawn mower 100 is to acquire the electric quantity information of the first power module 5 and transmit the information to the control unit a; acquiring electric quantity information of the second power supply module 6, and transmitting the electric quantity information to the control unit A; the control unit A processes the electric quantity information and outputs corresponding instructions to the first power module 5 and the second power module 6. Specifically, a preset value of the electric quantity of the first power module 5 is prestored in the control unit a, the control unit a judges the electric quantity information and the preset value of the first power module 5, and when the electric quantity of the first power module 5 is greater than the preset value, the control unit a sends an instruction to the second power module 6 so that the second power module 6 does not supply power; when the electric quantity of the first power module 5 is lower than the preset value, the control unit a sends an instruction to the first power module 5, so that the first power module 5 does not supply power. Preferably, when the power of the first power module 5 is lower than a preset value, the control unit a sends a command to the cutting motor 9 to disable the cutting motor 9.
In addition, as shown in fig. 2, the power source may also include only the second power module 6, and the lawn mower 100 drives the walking motor 4 and the cutting motor 9 only through the second power module 6, which is different from the above embodiment only in that the first power module 5 is not provided, and other structures are the same, and will not be described again. The second power module 6 may be a single battery pack 62 with a power outlet electrically connected to a power inlet. Preferably, the voltage of the individual battery pack 62 is 12-80V, and more preferably, the voltage of the individual battery pack 62 is 20V. The second power module 6 may also be a whole formed by combining a plurality of battery packs 62, and the plurality of battery packs 62 are independently and selectively connected in series in the second power module 6, so that the second power module 6 obtains a higher voltage than any single battery pack 62; or several battery packs 62 may be selected independently in parallel within the second power module 6 to allow the second power module 6 to achieve a greater capacity than any single battery pack 62. The single battery pack 62 may be a lithium battery, a nickel metal hydride battery, a nickel cadmium battery, a graphene battery, or lithium iron phosphate, etc., and is not limited herein. The rated voltage of the battery pack 62 is 12-80V, preferably 20V.
Preferably, the second power module 6 includes two battery packs 62, the voltage of the two battery packs 62 is the same, and both the two battery packs 62 are connected in series.
Preferably, the second power module 6 includes a housing 61, a plurality of battery packs 62 are supported in the housing 61, the power outlet is located on the housing 61, and the plurality of battery packs 62 are independent of each other and output power through the power outlet after being selectively connected in series or in parallel. At this time, the number of the second power modules 6 may also be single or multiple, when the number of the second power modules 6 is multiple, the power supply installation part 13 may be provided with a plurality of power supply input ports corresponding to the plurality of second power modules 6, and the plurality of second power modules 6 are respectively installed on the frame 1; but not limited to, a plurality of second power modules 6 may be connected into a whole and then installed together with the correspondingly arranged power input port through one or more power output ports, that is, the whole is installed with the vehicle frame 1.
It is understood that the plurality of battery packs 62 may be all connected in series, all connected in parallel, or a portion of the series connection and a portion of the parallel connection; the voltages of the plurality of battery packs 62 may be the same as or different from each other; a plurality of battery packs 62 are fixedly or detachably supported independently of each other in the case 61. Illustratively, the power source has a voltage of 80V, and the second power module 6 can include 4 series-connected battery packs 62 rated at 20V, and the battery packs 62 are detachably mounted on the housing 61. But not limited to this, the second power module 6 may further include 1 battery pack 62 rated at 40V and 2 battery packs 62 rated at 20V connected in series, the 40V battery pack 62 is fixedly mounted to the housing 61, and the 2OV battery pack 62 is detachably mounted to the housing 61. When the battery pack 62 is detachably attached to the housing 61, the battery pack 62 can be replaced with a new one after the battery pack 62 is worn due to long-term discharge, and in addition, a single battery pack 62 can be used alone in other tool bodies to improve the utilization rate, and the single battery pack 62 is a general battery pack 62. Preferably, the voltage of the battery packs 62 of the second power module 6 may be 20V each, combined by several identical battery packs 62.
The connection structure of the battery pack 62 and the housing 61 may be that a receiving position is arranged in the housing 61, the receiving position has a receiving interface matched with the interface of the battery pack 62, the battery pack 62 is movably or fixedly installed in the receiving position, and the battery pack 62 and the electric energy output port are electrically connected through the receiving interface.
The second power module 6 may be mounted on the lawn mower 100 to power the lawn mower 100, or may be detached from the lawn mower 100 as a separate individual to power a plurality of different power tool bodies, for example: the grass trimmer, the chain saw, the blower, the blowing and sucking machine and the like form a power sharing system, so that the utilization rate of the second power module 6 is improved, and the input-output ratio of a user is improved.
It will be appreciated that the second power module 6 may be mounted directly on the mower 100 to power the mower 100, or may be removed from the mower 100 as a separate unit to power a plurality of different power tool bodies, for example: the grass trimmer, the chain saw, the blower, the blowing and sucking machine and the like form a power sharing system, so that the utilization rate is improved. That is, the second power module 6 is actually a universal battery, the single battery pack 62 of the second power module 6 may be universal to supply power to other power tools, or the second power module may be universal to supply power to other power tools.
Still be equipped with on the frame 1 and be used for connecting the external power source and charge the structure of charging for the power supply, second power module 6 is configured to can be separated with frame 1 and is charged the supplementary energy by battery charging outfit to it, also can install and charge to it through the structure of charging on frame 1 to second power module 6 need not frequent dismantlement from frame 1 and charges, has improved the convenience that second power module 6 used.
The present application also includes a wheeled mobile vehicle, which is different from the above mower in that: the cutting member 16 is not included, so that the wheeled mobile vehicle has only one walking operation state, and when the wheeled mobile vehicle is in the walking operation state, the first power supply module 5 and the second power supply module 6 can supply power in sequence; or the first power module 5 and the second power module 6 are powered simultaneously. In one embodiment, the first power module 5 and the second power module 6 sequentially supply power, the first power module 5 supplies power first, after the electric quantity reaches a preset value, the first power module 5 stops supplying power, and the second power module 6 supplies power. Other solutions are the same as the above-described lawnmower, and will not be described again here.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (29)

1. A lawn mower comprises a frame, wheels arranged below the frame, a cutting part, a functional part for driving the wheels and the cutting part, and a power source for providing power for the functional part, and is characterized in that:
the power source comprises a first power module fixedly arranged on the frame and a second power module detachably arranged on the frame;
the mower is configured to be powered by only the first power module, only the second power module, or both the first power module and the second power module.
2. The lawnmower of claim 1, wherein the first power module is a built-in battery mounted on the frame, and the second power module is a universal battery adapted to be mounted to other power tools to power the same.
3. The mower of claim 1, wherein the frame is further provided with a charging structure for connecting an external power supply to charge the first power module and the second power module,
the first power module is configured to be charged by the charging structure;
the second power supply module is configured to be separated from the vehicle frame and charged by a charging device to supplement energy, and also can be installed on the vehicle frame to charge the vehicle frame through the charging structure.
4. The mower of claim 1,
the frame is provided with a power supply mounting part for receiving the second power supply module, the power supply mounting part is provided with a sliding groove or a sliding rail,
the second power supply module is provided with an electric energy output port, the power supply installation part is provided with an electric energy input port which is butted with the electric energy output port,
the second power supply module is slidably mounted along the sliding groove or the sliding rail so as to be combined with the power supply mounting part.
5. The lawnmower of claim 1, wherein the lawnmower is a riding lawnmower and the frame is provided with a support structure for supporting an operator.
6. The mower of claim 1,
the functional components comprise a walking motor and a cutting motor, the walking motor drives the wheels to realize the walking function of the mower, the cutting motor drives the cutting piece to realize the cutting function of the mower,
the running state of the mower comprises a first state that the walking motor and the cutting motor work simultaneously and a second state that only the walking motor works.
7. The lawnmower of claim 6, wherein the lawnmower, when in the first state,
only the first power supply module supplies power; or
Only the second power supply module supplies power; or
The first power supply module and the second power supply module are matched for supplying power, and the first power supply module and the second power supply module sequentially supply power; or the first power supply module and the second power supply module supply power simultaneously.
8. The lawnmower of claim 6, wherein when the lawnmower is in the second state,
only the first power supply module supplies power; or
Only the second power supply module supplies power; or
The first power supply module and the second power supply module are matched for supplying power, and the first power supply module and the second power supply module sequentially supply power; or the first power supply module and the second power supply module supply power simultaneously.
9. The lawnmower of claim 8, wherein when the first power module and the second power module cooperate to supply power,
the first power supply module and the second power supply module simultaneously supply power to the walking motor; or
The first power module supplies power to the walking motor, when the electric quantity of the first power module is lower than a preset value, the first power module stops supplying power, and the second power module supplies power to the walking motor.
10. The mower of claim 6, wherein:
the first power module can supply power for the walking motor and the cutting motor, the second power module can only supply power for the walking motor, the first power module and the second power module sequentially supply power, or the first power module and the second power module supply power simultaneously.
11. The lawnmower of claim 10, wherein the first power module and the second power module supply power sequentially,
the first power supply module supplies power firstly, and stops supplying power when the electric quantity of the first power supply module is lower than a preset value, and the second power supply module supplies power.
12. The lawnmower of claim 1, further comprising a protection unit configured to limit the cutting motor to stop the cutting motor after the first power module charge level is below a preset value.
13. The mower of claim 1, wherein: the lawn mower further comprises a control unit for controlling the mower,
the control unit can acquire the electric quantity information of the first power supply module and the second power supply module,
and the control unit controls the power supply of the first power supply module and the second power supply module according to the electric quantity information.
14. The mower of claim 6, wherein: the lawn mower further comprises a control unit for controlling the mower,
the control unit comprises
A cutting control unit connected with the cutting motor to control the cutting motor;
the walking control unit is connected with the walking motor so as to control the walking motor;
the first power supply module control unit is connected with the first power supply module to acquire the electric quantity information of the first power supply module and control the power supply of the first power supply module;
the second power module control unit is connected with the second power module to acquire the electric quantity information of the second power module and control the power supply of the second power module;
the cutting control unit, the walking control unit, the first power module control unit and the second power module control unit are in communication connection, so that power supply of the first power module and the second power module is controlled according to electric quantity information.
15. The mower of any one of claims 13 and 14, wherein a preset value of the charge level of the first power module is pre-stored in the control unit,
when the electric quantity of the first power supply module is larger than the preset value, the control unit controls the first power supply module to supply power through the first power supply module, and controls the second power supply module to enable the second power supply module not to supply power;
when the electric quantity of the first power supply module is lower than the preset value, the control unit controls the first power supply module to enable the first power supply module not to supply power, and the control unit controls the second power supply module to supply power through the second power supply module.
16. The mower of claim 1,
the first power supply module is a single battery pack, or
The first power supply module comprises a plurality of battery packs, and the plurality of battery packs are independently connected in series in the first power supply module in a selectable mode, so that the first power supply module obtains higher voltage relative to any single battery pack;
or a plurality of independent battery packs can be connected in parallel in the first power supply module in a selectable mode, so that the first power supply module obtains larger capacity relative to any single battery pack.
17. The mower of claim 1,
the second power supply module is a single battery pack, or
The second power supply module comprises a plurality of battery packs, and the plurality of battery packs are independently connected in series in the second power supply module in a selectable mode, so that the second power supply module obtains higher voltage relative to any single battery pack;
or a plurality of independent battery packs can be connected in parallel in the second power supply module in a selected mode, so that the second power supply module obtains larger capacity relative to any single battery pack.
18. The lawnmower of claim 17, wherein the second power module comprises a plurality of battery packs, the second power module comprises a housing, the plurality of battery packs are supported in the housing, the housing is provided with an electrical power outlet, and the plurality of battery packs are independent of each other and can output power through the electrical power outlet after being selectively connected in series or in parallel.
19. The mower of claim 1, further comprising an output electrical interface electrically connected to the first power module and/or the second power module, wherein the output electrical interface is configured to output DC power and/or AC power for powering or charging other devices.
20. The utility model provides a wheeled locomotive, includes the frame, installs wheel, drive under the frame the functional unit of wheel, for the power supply that functional unit provided power, its characterized in that:
the power source comprises a first power module arranged on the frame and a second power module movably arranged with the frame;
the wheeled mobile vehicle is configured to be powered by only the first power module, only the second power module, or both the first power module and the second power module.
21. The wheeled mobile of claim 20, wherein the first power module is a built-in battery mounted on the frame and the second power module is a universal battery adapted to be mounted to other power tools to power the same.
22. The wheeled mobility vehicle of claim 20, further comprising a charging structure on the frame for connecting an external power source to charge the first power module and the second power module,
the first power module is configured to be charged by the charging structure;
the second power supply module is configured to be separated from the vehicle frame and charged by a charging device to supplement energy, and also can be installed on the vehicle frame to charge the vehicle frame through the charging structure.
23. The wheeled mobile of claim 20,
the frame is provided with a power supply mounting part for receiving the second power supply module, the power supply mounting part is provided with a sliding groove or a sliding rail,
the second power supply module is provided with an electric energy output port, the power supply installation part is provided with an electric energy input port which is butted with the electric energy output port,
the second power supply module is slidably mounted along the sliding groove or the sliding rail so as to be combined with the power supply mounting part.
24. The wheeled mobile of claim 20,
the second power supply module is a single battery pack, or
The second power supply module comprises a plurality of battery packs, and the plurality of battery packs are independently connected in series in the second power supply module in a selectable mode, so that the second power supply module obtains higher voltage relative to any single battery pack;
or a plurality of independent battery packs can be connected in parallel in the second power supply module in a selected mode, so that the second power supply module obtains larger capacity relative to any single battery pack.
25. The wheeled mobile of claim 20,
the first power supply module and the second power supply module can supply power in sequence; or the first power supply module and the second power supply module supply power simultaneously.
26. The wheeled mobile of claim 25,
when the first power supply module and the second power supply module supply power in sequence,
the first power supply module supplies power firstly, and stops supplying power when the electric quantity reaches a preset value, and the second power supply module supplies power.
27. The wheeled mobile of claim 20, wherein the wheeled mobile is a lawn mower, a scooter, or an electric bicycle.
28. A wheeled mobile vehicle comprises a frame, wheels arranged under the frame, functional components for driving the wheels, and a power source for providing power for the functional components,
the power source includes a first power module mounted on the frame,
the frame is provided with a power supply mounting part for receiving the second power supply module, so that the wheeled mobile vehicle can be configured to be powered by only the first power supply module, only the second power supply module or the first power supply module and the second power supply module in a matching way.
29. The wheeled mobile of claim 28,
the wheeled moving vehicle is a mower and also comprises a cutting piece; or
The wheeled moving vehicle is a scooter; or
The wheeled locomotive is electric bicycle.
CN202010054980.9A 2019-01-18 2020-01-17 Mower and wheeled mobile vehicle Pending CN111448884A (en)

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