WO2020173487A1 - 长杆类电动工具 - Google Patents

长杆类电动工具 Download PDF

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Publication number
WO2020173487A1
WO2020173487A1 PCT/CN2020/077008 CN2020077008W WO2020173487A1 WO 2020173487 A1 WO2020173487 A1 WO 2020173487A1 CN 2020077008 W CN2020077008 W CN 2020077008W WO 2020173487 A1 WO2020173487 A1 WO 2020173487A1
Authority
WO
WIPO (PCT)
Prior art keywords
assembly
rod
long
electric tool
working
Prior art date
Application number
PCT/CN2020/077008
Other languages
English (en)
French (fr)
Inventor
章利进
李立
孙飞
Original Assignee
南京德朔实业有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Publication of WO2020173487A1 publication Critical patent/WO2020173487A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08—Other tools for pruning, branching or delimbing standing trees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/008—Cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • This application relates to the field of electric tools, for example, to a long pole electric tool. Background technique
  • long pole electric tools generally include connecting a long pole assembly with a certain length, and one end of the long pole assembly is connected with a working assembly to increase the user's operable height.
  • the working head of the long pole electric tool is set to be detachable and replaceable, and the motor is set in the working head. Because the length of the long rod assembly is relatively high, the user needs different working angles of the working assembly in different operation scenarios. When operating a long rod type electric tool that cannot adjust the side cutting angle, the user needs to adjust the posture by himself to realize the angle adjustment. Use fatigue, and can not meet the use needs of some special scenes. Summary of the invention
  • the present application provides a long rod type electric tool, which improves the heat dissipation efficiency and running performance of working components.
  • the present application provides a long rod type electric tool, including: a working assembly, including a working element for outputting work and a motor for driving the working element; a grip part, the grip part for users to hold; a power supply, which supplies power to the motor; control The controller is used to control the rotation of the motor, and the controller is electrically connected with the power supply and the motor; the first housing, the controller is arranged and accommodated in the first housing; the motor housing, the motor is supported by the motor housing, the motor housing includes The air inlet part is provided with a plurality of air inlet holes; the long rod assembly is connected to the grip part and the motor housing; the long rod type electric tool further includes: a fan, the fan is connected to the motor and extends out of the motor housing; The wind hood, which is connected to the motor housing, is used for accommodating the fan and includes: an air outlet, an air duct for guiding the heat dissipation air flow is formed between the air outlet and the air inlet, and the air duct is at its end facing the outlet The
  • the diameter of the air inlet hole is greater than or equal to 1 mm and less than or equal to 5 mm.
  • an air outlet duct is formed at the end of the air duct, and the air outlet duct is parallel to the rotation plane of the fan.
  • the long rod type electric tool includes a heat sink, the heat sink is installed to the controller, the heat sink is in direct contact with the controller or indirectly contacts through the heat conducting part; the heat sink is connected to the long rod assembly, and is in direct contact with the long rod assembly Or indirect contact through the thermal conductive element.
  • the heat sink is formed with a contact surface that fits at least a part of the surface of the long rod assembly, and the contact surface is a continuous curved surface or multiple discontinuous surfaces.
  • the long rod assembly is formed with convex ribs protruding outward in the radial direction, and the convex ribs extend along the axial or circumferential direction of the long rod assembly;
  • the heat sink is formed with grooves that cooperate with the convex ribs, either in the circumferential direction or The position of the long rod assembly relative to the heat sink is axially defined.
  • the controller includes a circuit board, the circuit board includes a substrate, and the heat sink is connected to the substrate; the circuit board further includes electronic components mounted on the substrate, the substrate has a mounting surface for mounting the electronic components, and the heat sink is connected to and mounted The opposite side of the face; the material of the substrate is thermally conductive metal.
  • the present application provides a long rod type electric tool, including: a working assembly, including a working element for outputting work and a motor for driving the working element; a grip part, the grip part for users to hold; a power supply, which supplies power to the motor; control The motor is used to control the rotation of the motor, and the controller is electrically connected to the power supply and the motor; the motor housing, the motor is supported by the motor housing, the motor housing includes an air inlet, and the air inlet is provided with multiple air inlets;
  • the rod assembly connects the holding part and the motor housing;
  • the long rod type electric tool also includes: a fan; a wind deflector for accommodating the fan and includes: an air outlet part, formed between the air outlet part and the air inlet for guiding An air duct for dissipating airflow, the cross section of the duct at its end gradually increases in the direction toward the air outlet.
  • the fan is connected to the motor and extends out of the motor housing, and the air guide is connected to the motor housing.
  • the long pole type electric tool further includes a connector, the connector is arranged at one end of the long pole assembly, and the working assembly is pluggably electrically connected with the connector; the electric wire is arranged in the long pole assembly for realizing electrical connection;
  • the long pole power tool also includes a winding device for supporting the wire, the winding device is connected with the connector; the winding device includes a spool and a winding groove around the spool, at least part of the wire is arranged to extend along the winding groove for winding The spool, so that the wire maintains a spiral posture in the long pole assembly.
  • the connector includes a fitting groove, one end of the winding device is provided with a fitting piece, and the fitting piece is arranged to be inserted into the fitting groove so that the winding device is fixed by the connector.
  • the long rod type electric tool further includes a switch, which is installed to the holding part and used to control the operation of the motor; the long rod assembly is connected to the holding part and includes at least a first connecting rod and a second connecting rod, and the second connecting rod A telescopic connection is formed with the first connecting rod, the first connecting rod and the second connecting rod are relatively telescopic so that the long rod assembly has at least a first length and a second length; the long rod assembly includes a mounting device for detachably installing the working assembly
  • the working components are implemented as at least two working components, at least one of the working components is provided with an extension rod at one end, the extension rod is connected to the installation device to install the working components, and the maximum length of the long rod type electric tool is greater than or equal to 3.5 m.
  • one of the working components is a pruning machine assembly, which includes a pruning machine working head.
  • the pruning machine working head is connected to the mounting device and the long rod assembly is at the longest length, the end of the working element is connected to the switch The distance is less than or equal to 3.5m.
  • the installation device includes: an operating device, the operating device is installed on the first connecting rod; a connecting portion, the connecting portion is provided on the working assembly, and the operating device is operated and detachably connected to the connecting portion.
  • the connecting portion is a mounting hole provided in the working assembly
  • the operating device includes: an adapting portion connected to the mounting hole; an elastic piece installed on the adapting portion; the adapting portion can be maintained in the mounting hole by the elastic piece, The first connecting rod and the working assembly are fixedly connected.
  • the long rod assembly includes a first straight line passing through the shaft center of the long rod assembly, the working element has a center line extending along the center thereof, and after the working assembly is installed on the long rod assembly, the center line deviates from the first straight line .
  • the linear distance between the center line and the first straight line is greater than or equal to 5 mm and less than or equal to 10 mm.
  • the long rod assembly is connected to the grip portion and includes a first connecting rod and a second connecting rod, the second connecting rod and the first connecting rod form a telescopic connection, and the first connecting rod and the second connecting rod are configured as Flat tube.
  • the connecting rod further includes a bushing arranged in the first connecting rod, and when the first connecting rod and the second connecting rod at least partially overlap, the bushing is located between the first connecting rod and the second connecting rod.
  • the long rod type electric tool further includes an adjustment component
  • the adjustment component includes: an adapter rod, the adapter rod is adapted to connect the long rod assembly and the working assembly, the adapter rod includes at least a first adapter rod, and a first adapter rod.
  • the rod extends at least partially along the first straight line; a first adjusting member, the first adjusting member is arranged on the first adapting rod and slidable relative to the first adapting rod;
  • the first locking mechanism is connected to the first adjusting member, The first locking mechanism can at least be switched to the locked state and the unlocked state by the first adjusting member.
  • the adjusting component In the locked state, the adjusting component is connected to the first adapting rod and the working component through the first locking mechanism; in the unlocked state, the working component It is rotatable relative to the first adapting rod, so that the first plane can rotate around the first straight line.
  • the adaptor rod further includes: a second adaptor rod, the second adaptor rod is sleeved on the first adaptor rod and is connected to the working assembly;
  • the first locking mechanism further includes: a first locking member, a first locking member It is fixedly connected with the second adapting rod, and the first locking member restricts the rotation of the working assembly relative to the adapting rod in the locked state.
  • the first adjusting member is connected to the first adapting rod in a non-rotational manner, the first adjusting member further includes a non-rotation pin, the first locking member includes at least two anti-rotation holes, and in the locked state, the anti-rotation pin is inserted Stop hole.
  • the long rod type electric tool further includes: a rotating shaft, connected to the working assembly, the axis of the rotating shaft is arranged in parallel with the first plane; a second adjusting member, the second adjusting member is arranged on the second adapter rod and can be opposite to each other The second adapting rod slides; the second locking mechanism, the second locking mechanism can be locked and unlocked by the second adjusting member, when the second locking mechanism is locked, the adjusting assembly is fixedly connected to the second adapting rod and the working assembly; when unlocking , The working assembly is rotatable about the rotation axis relative to the second adapting rod.
  • the second locking mechanism includes: a positioning pin, the positioning pin is connected to the second adjusting member; the second locking member, the second locking member is sleeved outside the rotation shaft, and has at least two pin holes, and the positioning pin is inserted into the pin The hole is used to keep the locking mechanism locked, and the positioning pin is controlled to escape from the pin hole by the first adjusting member, so that the working assembly can rotate relative to the rotating shaft relative to the adapting rod.
  • the second pinning mechanism further includes: a movable part, which connects the second adjusting part and the positioning pin; an elastic part, which is arranged between the positioning pin and the movable part, and provides a retaining force for the locking mechanism to maintain the lock .
  • the pin hole further includes a first pin hole used to adjust the working position of the working component, and a second pin hole used to maintain the working component in the storage position.
  • the positioning pin is located in the second pin hole, the working component points to the grip
  • the angle between the first plane and the first straight line is less than 20 degrees.
  • the working assembly further includes a switch connected to the motor, and the second adapting rod includes a triggering device.
  • the triggering device triggers the switch.
  • the trigger device is disengaged from the switch, and the switch is off.
  • the first adjusting piece and the second adjusting piece are ring-shaped pieces, and the first adjusting piece is sleeved on the first adapting rod, and the second adjusting piece is sleeved on the second adapting rod.
  • the horizontal distance between the center of gravity of the working component and the axis of the rotating shaft is greater than or equal to 35mm and less than or equal to 50mm, and the distance between the center of gravity of the working component and the lower end surface of the working component is greater than or equal to 20mm and less than or equal to 30mm.
  • the rod walls of the first connecting rod and the second connecting rod respectively have opposite side planes on both sides thereof.
  • the long pole electric tool further includes: a grip portion formed with a handle for the user to hold; a switch for controlling the motor, the switch is electrically connected to the controller and mounted to the handle;
  • the housing is formed with an accommodating space for accommodating the controller;
  • the working assembly includes a second housing, and the motor is accommodated in the second housing; the handle is arranged close to the first housing.
  • the first housing is closer to the end of the long rod assembly connected to the power source than the long rod assembly.
  • Figure 1 is a schematic diagram of a long rod type electric tool of the first embodiment of the present application
  • Figure 2 is a perspective view of part of the structure of the long rod type electric tool in Figure 1;
  • Figure 3 is an exploded view of part of the structure of the long rod type electric tool in Figure 1;
  • Figure 4 is a cross-sectional view of a partial structure of the long rod type electric tool in Figure 1; 5 is a schematic diagram of the controller and the heat sink of the long rod type electric tool in FIG. 1; FIG. 6 is a perspective view of the heat sink of the long rod type electric tool in FIG. 1;
  • FIG. 7 is a schematic diagram of the connection of the power supply, the controller, the switch and the motor of the long pole electric tool according to the first embodiment of the present application;
  • FIG. 8 is a schematic diagram of a part of the structure of the long rod type electric tool of the first embodiment of the present application
  • FIG. 9 is a schematic diagram of a part of the structure of the long rod type electric tool of the first embodiment of the present application
  • the long-bar type electric tool of the first embodiment is a three-dimensional structure diagram of a chain saw
  • FIG. 11 is a three-dimensional structure diagram of the long-bar type power tool of the first embodiment of the present application as a pruning machine;
  • FIG. 12 is a cross-sectional view of a part of the structure of the long rod electric tool according to the first embodiment of the present application
  • FIG. 13 is a schematic diagram of the connecting portion of the long rod electric tool according to the first embodiment of the present application
  • FIG. 14 is the present application A schematic diagram of the size of the long pole electric tool of the first embodiment
  • FIG. 15 is a three-dimensional schematic diagram of the long rod type electric tool of the first embodiment of the present application as a chain silver;
  • FIG. 16 is a schematic structural diagram of the connector of the long rod type power tool of the first embodiment of the present application;
  • FIG. 17 is A schematic diagram of a three-dimensional structure of a winding device for a long pole electric tool according to the first embodiment of the present application;
  • FIG. 18 is a schematic diagram of the planar structure of the winding device of the long rod type electric tool according to the first embodiment of the present application;
  • 19A and 19B are structural schematic diagrams of the connector and the winding device of the long pole electric tool according to the first embodiment of the present application;
  • FIG. 20 is a schematic partial cross-sectional view of the long rod type electric tool according to the first embodiment of the present application;
  • FIG. 21 is a three-dimensional structure diagram of the long rod type electric tool according to the second embodiment of the present application;
  • FIG. 22 is a second embodiment of the present application The structure diagram of the chain silver working head of the long rod type electric tool of the embodiment;
  • FIG. 23 is a cross-sectional view of the chain saw working head of the long rod type electric tool of the second embodiment of the present application;
  • FIG. 24 is the third embodiment of the present application The connection diagram of the power supply, controller, switch and motor of long pole electric tools;
  • FIG. 25 is a schematic diagram of a part of the structure of the long rod type electric tool of the third embodiment of the present application
  • FIG. 26 is a schematic diagram of a part of the structure of the long rod type electric tool of the third embodiment of the present application
  • the structure of the working head part of the pruning machine of the long pole electric tool of the four embodiments Schematic diagram
  • Fig. 28 is a schematic plan view of the structure of the working head part of the pruning machine of the long pole electric tool according to the fourth embodiment of the present application;
  • 29 is a cross-sectional view of the partial structure of the working head of the long pole electric tool of the fourth embodiment of the present application.
  • FIG. 30 is a structural diagram of a first locking mechanism of a long rod type electric tool according to a fourth embodiment of the present application
  • FIG. 31 is a structural diagram of a second locking mechanism of a long rod type electric tool according to a fourth embodiment of the present application
  • 32 is a schematic diagram of the structure of the trigger device and the safety switch of the long pole electric tool according to the fourth embodiment of the present application.
  • the long pole electric tool of this application is a commonly used garden tool.
  • the application will be introduced below in conjunction with the drawings and embodiments.
  • the long rod type electric tool 100 includes a working assembly 11, a motor (not shown), and a rod system.
  • the rod system is detachably adapted to the working assembly.
  • the rod system includes a long rod assembly 12 and a power source 13. .
  • the working assembly 11 includes a working head, and the power source 13 is arranged in the working head.
  • the working head includes a working element 111 for outputting power to realize the function of the long rod type electric tool 100.
  • the working element 111 is a saw chain.
  • the long pole electric tool 100 is a chain saw.
  • the long pole electric tool 100 may also be a pruning shear, sander, vacuum cleaner, multi-function tool, etc.
  • the long pole electric tool 100 The assembly 11 can be replaced.
  • the work assembly 11 with different work elements 111 can form an adaptable electrical connection with the long rod assembly 12.
  • the work assembly can be implemented as a chain saw assembly, a pruner assembly, and a vacuum cleaner assembly. . Therefore, the type of the long pole electric tool 100 is not limited.
  • the power source 13 is a battery pack. It is understandable that the long pole electric tool 100 may also be connected to an AC power source or an AC-DC conversion power source.
  • the motor is used to drive the working element 111 to move, and it can be a motor.
  • the long rod assembly 12 at least partially extends along the first straight line 101. In this embodiment, the long rod assembly 12 extends along the first straight line 101.
  • the long rod assembly 12 is connected to the working assembly 11 to increase the user's operable length.
  • the working assembly 11 and the long rod assembly 12 form a detachable connection, which may be a detachable fixed connection or a detachable movable connection.
  • the method is not limited.
  • the long rod assembly 12 in this embodiment is a telescopic rod composed of multiple layers of rods, which enhances the user's operable length and reduces the storage space of the machine.
  • the long rod assembly 12 is made of a thermally conductive material. Considering the required strength of the long rod assembly 12, a metal material is generally used. In this embodiment, the long rod assembly 12 may be made of aluminum.
  • the long pole electric tool 100 also includes a controller 14 for controlling the rotation of the motor, and is installed to the controller 14 The heat sink 15 of the controller 14.
  • a controller 14 for controlling the rotation of the motor, and is installed to the controller 14
  • the controller 14 needs a heat dissipation structure to dissipate the heat to ensure its normal operation.
  • the long rod type electric tool 100 includes a first housing 16, and the first housing 16 is formed with an accommodating space for accommodating the controller 14.
  • the long rod assembly 12 is connected to the working assembly 11 at one end, and connected to the first housing 16 at the other end. .
  • the battery pack is connected to the first housing 16.
  • the working assembly 11 includes a second housing 112, and the motor is accommodated in the second housing 112; the long rod assembly 12 is connected to the first housing 16 at one end, and connected to the second housing 112 at the other end. That is to say, the motor and the controller 14 are respectively disposed in the second housing 112 and the first housing 16 of the working assembly 11, and the second housing 112 and the first housing 16 are connected to the two ends of the long rod assembly 12. end.
  • Such a setting can balance the weight of the whole machine, and it is more convenient and labor-saving for the user to operate.
  • arranging the motor in the working assembly 11 can facilitate replacement and adaptation to different working assemblies 11.
  • the present application cleverly uses the thermal conductivity of the long rod assembly 12 as a huge radiator to dissipate the controller 14.
  • the motor is also contained in the first housing 16. Such a configuration can utilize the motor fan to simultaneously dissipate heat to the controller 14 and improve the heat dissipation efficiency of the controller 14.
  • the long rod type electric tool 100 further includes a grip portion 170 formed with a handle 17 for the user to hold.
  • the handle 17 is connected to the long rod assembly 12, and the controller 14 and the heat sink 15 accommodate In the handle 17, this arrangement can make full use of the accommodating space formed by the handle 17, and simplify the structure of the whole machine.
  • the controller 14 includes a circuit board.
  • the circuit board is the main heating component of the controller 14. Therefore, a heat sink 15 is installed on the circuit board to dissipate the circuit board.
  • the circuit board and the heat sink 15 form a direct Contact or indirect contact through the thermal conductive element.
  • the heat sink 15 and the circuit board form a surface contact for sufficient heat transfer. Since the circuit board and the heat sink 15 are in solid contact, in order to avoid insufficient contact, a material is arranged between the circuit board and the heat sink 15 so that they form close contact. For example, a silicone material can be arranged between the heat sink 15 and the circuit board, or a gasket between the two so that they form a tight connection, etc., a thermally conductive silicone rubber pad can be selected.
  • the heat sink 15 is generally made of a thermally conductive material, such as aluminum.
  • the circuit board includes a substrate 141 and electronic components 142 mounted to the substrate 141, and the heat sink 15 is connected to the substrate 141.
  • the long pole electric tool 100 further includes a controller 14 for supporting a circuit board, the base plate 141 is fixed to the controller 14, and the heat sink 15 is fixedly connected to the controller 14 by fasteners.
  • the material of the substrate 141 is a thermally conductive metal, which is a nameplate in this embodiment.
  • the substrate 141 is a rectangular thin plate.
  • the substrate 141 has a mounting surface 141a for mounting electronic components 142.
  • the heat sink 15 is connected to the other surface opposite to the mounting surface 141a, and the surface of the heat sink 15 connected to the substrate 141 is parallel to the substrate 141. .
  • the heat sink 15 can more effectively dissipate the heat of the electronic component 142; as an alternative embodiment, the electronic component 142 is mounted on the substrate On the two opposite surfaces of 141, the heat sink 15 is mounted on one of the surfaces. This design can make full use of space when there are more electronic components 142.
  • the heat dissipation member 15 is connected to the long rod assembly 12, and the heat dissipation member 15 and the long rod assembly 12 form direct contact or indirectly contact through the heat conducting member.
  • the heat sink 15 is connected to the long rod assembly 12 via a connecting piece 18.
  • the connecting piece 18 at least defines the heat sink 15 to move relative to the long rod assembly 12 in one direction, and one direction refers to the axial, radial, and One of Zhou Xiang.
  • the heat sink 15 is connected to the long rod assembly 12 through the connecting piece 18, and the connecting piece 18 at least defines the heat sink 15 to move relative to the long rod assembly 12 in the radial direction.
  • the position fixation of the heat sink 15 with respect to the long rod assembly 12 in other directions it can be realized by the limitation of the size of the first housing 16 or other limitation structures, thereby simplifying the structure and making the installation more convenient.
  • the long rod assembly 12 is formed with a convex rib 121 protruding outward in a radial direction, and the convex ribs 121 extend along the axial or circumferential direction of the long rod assembly 12; correspondingly, the heat sink 15 is formed with a convex rib 121
  • the groove 151 defines the position of the long rod assembly 12 relative to the heat sink 15 in the circumferential or axial direction.
  • the long rod assembly 12 is formed with a convex rib 121 protruding outward in the radial direction, and the convex ribs 121 extend along the axial direction of the long rod assembly 12; the heat sink 15 is formed with a groove 151 that cooperates with the six ribs 121 , The position of the long rod assembly 12 relative to the heat sink 15 is defined along the circumferential direction.
  • Other connectors and fasteners can also be used to realize the position fixation of the heat sink 15 relative to the long rod assembly 12 in three directions.
  • the heat dissipating member 15 may directly contact the long rod assembly 12, or may be in indirect contact through the heat conducting member.
  • the heat sink 15 includes a connection portion 152 and a heat dissipation portion 153.
  • the connection portion 152 is used to connect the heat sink 15 to the long rod assembly 12, and the heat dissipation portion 153 is used to contact the long rod assembly 12 for heat dissipation.
  • the heat dissipation portion 153 is formed with a contact surface 153a that fits at least part of the surface of the long rod assembly 12, and the contact surface 153a is a continuous curved surface or multiple Discontinuous surface.
  • the contact surface 153a is a continuous curved surface that fits part of the surface of the long rod assembly 12, and the extended length of the continuous curved surface in the circumferential direction is about half of the circumference of the cross section of the long rod assembly 12, and the heat dissipation portion 153 is connected to the long rod assembly 12.
  • a semi-annular connecting piece 18 that is substantially equal to the axial length of the heat sink 15 is used to wrap the upper part of the long rod assembly 12 corresponding to the position of the heat sink 15, and the connecting portion 152 and the connecting piece 18 are fixed by four bolts.
  • the heat sink 15 is symmetrical about the first straight line 101. It should be noted that the number of the heat sink 15 may be multiple.
  • the thermal coefficient K is greater than or equal to 0.5 and less than or equal to 2.
  • the power source 13 is connected to the first housing 16. Since the first housing 16 and the second housing 112 are respectively connected to both ends of the long rod assembly 12, the power source 13 and the working assembly 11 are respectively connected to both ends of the long rod assembly 12 .
  • the controller 14 is used to control the operation of the motor.
  • the controller 14 can be used to control the start and stop of the motor, and the controller 14 can also control the rotation rate and direction of the motor.
  • the controller 14 is electrically connected to the power source 13 and the motor, respectively.
  • the power supply 13 and the controller 14 can also form a signal connection with the motor.
  • the switch 171 is used to control the motor, and the switch 171 is electrically connected to the controller 14 and installed to the handle 17; the handle 17 is arranged close to the first housing 16, that is, the switch 171 is arranged close to the controller 14.
  • the controller is arranged in the working assembly and the controller is far away from the switch.
  • the solution of the present application makes the arrangement of the wires more concise, which is suitable for electric tools, especially long pole electric tools with wires passing through the long pole. , Not only reduces the production cost, but also improves the stability of the connection.
  • the first housing 16 is closer to the end of the long rod assembly 12 connected to the power source 13 relative to the long rod assembly 12 and the handle 17 is closer to the end of the long rod assembly 12 connected to the power source 13 relative to the long rod assembly 12, which makes the entire
  • the structure of the machine is more convenient for the user to hold and operate.
  • the user holds the handle 17 with one hand while operating the switch 171, and the other hand holds the lever.
  • the position of the handle 17 and the controller 14 close to the power supply 13 makes the user's operation more convenient. Convenient and flexible, more in line with ergonomics.
  • the switch 171 is a signal switch 171, and the switch 171 and the controller 14 form an electrical connection and a communication connection.
  • the switch 171 is not connected to the power source 13 and is only connected to the controller 14 through a signal line.
  • the power supply 13, the controller 14, and the motor are electrically connected in turn through power lines.
  • the handle 17 is arranged close to the first housing 16 so that the switch 171 is close to the controller 14, as shown in FIG. 7, there are various positions of the switch 171 relative to the controller 14. In FIG.
  • the controller 14 is located at the rear end of the switch 171, and the controller 14 and the switch 171 are respectively accommodated in two different housings, the first housing 16 and the handle 17, which are now connected to the controller 14 and the switch 171.
  • the signal wires of the two pass through the two housings or through the two housings and the inside of the long rod assembly 12.
  • the controller 14 is basically located below the switch 171, and both the switch 171 and the controller 14 are accommodated in the accommodation space surrounded by the handle 17.
  • the controller 14 can also be located at other positions relative to the switch 171.
  • the controller 14 is located in front of the switch 171 and is provided in two different housings from the switch 171.
  • the long pole electric tool further includes a first fan (not shown) and a second fan 143.
  • the first fan is used for dissipating heat from the motor, and the first fan is connected to the motor and accommodated in In the second housing 112; the second fan 143 is used to dissipate heat for the controller 14, the second fan 143 is accommodated in the first housing 16, and the second fan 143 has its own drive motor. As shown in FIG.
  • the present application uses a heat sink 15 and a heat-conducting long rod assembly 12 to dissipate heat to the controller 14, and at the same time, a second fan 143 for dissipating heat for the controller 14, a second fan 143 and the controller 14 are all arranged in the handle 17, and the second fan 143 can enhance the heat dissipation effect of the controller 14.
  • this application only uses the second fan 143 arranged in the first housing 16 as the controller 14.
  • the heat sink 15 is not used, and the controller 14 is connected to the first housing 16.
  • the first housing 16 is provided with an air inlet and an air outlet for air circulation.
  • the long rod assembly 12 is connected to the holding portion 170 and includes at least a first connecting rod 122 and a second connecting rod 123, the second connecting rod 123 and the first connecting rod 122 form a telescopic connection, A connecting rod 122 and a second connecting rod 123 are relatively telescopic so that the long rod assembly 12 has at least a first length and a second length; by switching the relative extension or contraction state of the first connecting rod 122 and the second connecting rod 123, the switch The long rod assembly 12 has the first length or the second length, so that the length of the long rod assembly 12 is changed to achieve the overall length of the long rod type electric tool, so as to adapt to the operation requirements of different working conditions and facilitate user operation.
  • the holding portion 170 includes a holding portion housing, and the holding portion housing is fixedly connected to the first housing 16 for the user to hold.
  • the holding portion 170 further includes an auxiliary handle 172, the auxiliary handle 172 is arranged at the end of the holding portion 170, and the user can hold the handle 172 and the handle 17 respectively when using the long rod type electric tool, thereby Stable operation of long pole electric tools.
  • the long rod assembly 12 further includes a mounting device 124 for detachably installing the working assembly 11, taking the chain saw 110 as an example, when the long rod type electric tool is a chain saw 110, the working assembly 11 includes a chain saw assembly 113.
  • the corresponding working element 111 includes a saw chain 1111, and the working assembly 11 further includes a guide plate for guiding the saw chain 1111, and the saw chain 1111 rotates around the guide plate.
  • the chain saw assembly 113 includes a chain saw working head and an extension rod 114 extending from one end of the chain saw working head.
  • the extension rod 114 is connected to the mounting device 124 to install the chain saw assembly 113, so that it can be installed in the rod system.
  • the length L1 of the extension rod 114 is set between 0.8-1.7 m.
  • the maximum length of the chain saw 110 formed by the chain saw assembly 113 adapted to the rod system is greater than or equal to 4 m. It can meet the user's needs for the longer length of the chain saw 110.
  • the working head of the working assembly and the extension rod are fixedly connected.
  • the working head of the working assembly forms a detachable connection with the extension rod through a screw, thread or other detachable connection structure.
  • the long pole electric tool can also be a pruning machine 120
  • the working assembly 11 correspondingly includes a pruning machine assembly 122
  • the working element 111 includes a pruning shear 1112
  • the pruning machine assembly 122 can be adapted to a connecting rod system as Pruning machine 120.
  • the pruning machine assembly includes a transmission device.
  • the motor drives the pruning shear 1112 to move through the transmission device.
  • the transmission assembly includes a reduction mechanism (not shown).
  • the reduction mechanism has at least a first gear and a second gear for realizing the connection between the motor and the blade assembly. Power transmission between.
  • the second housing further includes a gear box for accommodating the transmission component, and the gear box forms a accommodating chamber for accommodating the transmission component.
  • the transmission assembly is arranged between the motor and the blade.
  • the second housing is provided with an oil injection hole 150 communicating with the containing chamber, and the oil injection hole 150 is relatively disposed below the motor.
  • Grease can be injected into the transmission components in the gearbox through the oil injection hole 150, so as to lubricate the reduction mechanism, which can effectively reduce the wear of the transmission components, thereby prolonging the service life of the transmission components.
  • the pruning machine assembly 122 does not have an extension rod, and the pruning machine assembly 122 is still Connect the adapter rod 115, the adapter rod 115 is connected to the working head, the working assembly 11 is directly connected to the rod system through the adapter rod 115, the length of the adapter rod 115 is less than the length of the extension rod 114, and makes the working element
  • the distance L2 from the end of the piece 111 to the switch is less than or equal to 3.5m.
  • the pruning machine 120 formed by the pruning machine assembly 122 adapted to the rod system from being too long and failing to meet safety standards, and the rod system is adapted to the chain saw assembly 113 with the extension rod 114 to effectively increase the entire length of the chain saw 110 to meet The user needs the use length of the chain saw 110.
  • the installation device 124 includes an operating device 125 and a connecting portion 126, the operating device 125 is installed on the long rod assembly; the connecting portion 126 is arranged on the working assembly 11, the operating device 125 is operated and detachably connected to the connecting portion 126 .
  • the connecting part 126 is provided on the extension rod 114 of the chain saw 110 or on the working head of the pruning machine 120 for matching with the first connecting rod 122.
  • the connecting portion 126 is a mounting hole provided in the working assembly 11, and the operating device 125 includes an adapting portion 1251 and an elastic member 1252, and the adapting portion 1251 is connected to the mounting hole; the elastic member 1252 is installed In the adapting portion 1251; the adapting portion 1251 can be maintained in the mounting hole by the elastic member 1252 to fix the first connecting rod 122 and the working assembly 11.
  • the adaptor 1251 is separated from the mounting hole, so that the working assembly 11 can be detached from the relatively long rod assembly 12, and the long rod assembly 12 can be installed with other working assemblies 11, so as to realize different rod systems. Matching of work components 11. Only need to buy a rod system to match different working components 11, thereby reducing costs.
  • the connecting portion 126 may also be configured as a threaded device, and the corresponding adapting portion 1251 is selected as a sleeve with matching threads, so that the connecting portion 126 and the adapting portion 1251 can be connected in rotation.
  • the connecting portion 126 and the adapting portion 1251 can also be connected by other quick installation methods, which will not be described in detail here.
  • the long rod assembly 12 includes a first straight line 101 passing through the axis of the long rod assembly 12, the working element 111 has a centerline 103 extending along its center, and the working element 111 is at least partially along the first plane 102 extend.
  • the center line 103 and the first straight line 101 are arranged in parallel, and the center line 103 deviates from the first straight line 101.
  • the second housing 112 is also used to support the working element 111.
  • the part of the second housing 112 connecting the working element 111 is provided with an offset structure, or the second housing 112 is connected to the extension rod 114 or suitable
  • the part of the rod 115 is provided with an offset structure, so that the center line 103 and the first straight line 101 are offset after the working assembly 11 is installed on the long rod assembly 12, and the center line 103 deviates from the first axis by a certain distance, so that The center of gravity of the working head is offset relative to the long rod assembly 12.
  • the working head is easily turned over automatically by gravity, so that the first plane 102 where the working element 111 is located is perpendicular to the ground.
  • the shortest straight line distance between the center line 103 and the first straight line 101 is greater than or equal to 5 mm and less than or equal to 10 mm, so that the position of the center of gravity of the working head is set to make the long rod electric tool
  • the plane on which the working element 111 is positioned is perpendicular to the ground due to the effect of gravity flipping.
  • the material or volume distribution of the working head of the working assembly 11 is set,
  • the center of gravity of the working head is offset relative to the center line 103, so that when the long pole electric tool is held by the user, the plane of the working element 111 is perpendicular to the ground due to the effect of gravity.
  • the long pole electric tool further includes an electric wire 220 and a winding device 210 for supporting the electric wire 220.
  • the electric wire 220 is provided in the long pole assembly 12 for electrical connection.
  • the long rod assembly 12 includes a connector 127 that is electrically connected to the working assembly 11, and the connector 127 is adapted to at least two different working assemblies 11.
  • the connector is arranged at one end of the long rod assembly, and the working assembly is pluggably electrically connected with the connector, so that the working assembly is pluggably electrically connected with the long rod assembly.
  • the working assembly 11 includes connecting terminals that are matched with the connector 127, as long as it is ensured that the connecting terminals in different working assemblies 11 can be adapted to the connector 127.
  • the electrical connection through the pluggable connector 127 and the connecting terminal can facilitate the user to replace the working assembly 11.
  • the controller 14 and the working assembly 11 form an electrical connection with the connector 12 through a wire 220, and the controller 14 can control the start and stop of the working element 111 and the operating speed.
  • the electric wire 220 is arranged inside the long pole assembly 12. Since the long pole assembly 12 in this embodiment is a telescopic pole, the electric wire 220 is a stretchable spring wire.
  • the winding device 210 includes a spool 211 and a winding groove 212 surrounding the spool 211, at least part of the wire 220 is arranged to extend along the winding groove 212 to wind the spool 211, so that the wire 220 in The spiral posture is maintained in the long rod assembly 12.
  • the winding groove 212 spirals up around the spool 211.
  • the winding device 210 further includes a wire groove 213, the wire groove 213 and the wire groove 212 are connected, the wire groove 213 extends in a direction parallel to the spool, and one end is open to connect the wire 220.
  • the electric wire 220 can be introduced into the winding groove 212 through the wire groove 213.
  • the spool 211 further includes a threading portion 214 penetrating the inside thereof.
  • the threading portion 214 is configured to support and install the electric wire 220.
  • the threading portion is implemented as a threading hole or a threading groove, and at least partially penetrates the winding device 210.
  • the winding device 210 includes a connection structure fixedly connected to the connector 127, is fixedly installed in the connector 127 through the connection structure, and is maintained in the extended state in the long rod assembly 12, so that the threading portion 214 is parallel to the first straight line 101,
  • the wire 220 that prevents the winding device 210 from being wound around may be installed at the long pole assembly 12 at an excessive incline.
  • the winding device 210 is fixed by the long rod assembly, and the electric wire is maintained as a spring wire in a spiral state by the winding device 210, so that the electric wire can expand and contract as the long rod assembly 12 expands and contracts.
  • the winding device 210 is connected to the connector 12, the connector 12 is provided at one end of the working assembly 11, and has a connection surface for cooperating with the working assembly 11, on which is provided with various working components Connect the port that matches the terminal.
  • the connecting surface is exposed outside the long rod assembly, the connector is at least partially arranged in the long rod assembly 12, and one end of the wire in the long rod assembly is fixedly connected to the interface of the connector.
  • one end of the wire is welded or crimped to the connected interface, and fixed by a winding device, extending into the long pole assembly.
  • the connector includes a fitting groove 128 which is placed close to the winding device.
  • the winding device is provided with a fitting piece 215 that is matched with the fitting groove 128, and the winding device and the connector are fitted and connected by placing the fitting piece 215 in the fitting groove 128.
  • One end of the wire 220 is connected to the interface of the connector 127, extends from the connector 127 to the inside of the pole assembly, and is wound to the winding device 210 connected to the connector.
  • the electric wire 220 is arranged to be led from the wire guide to the winding groove, and fixed along the winding groove to maintain the spiral extending state of the electric wire, and part of the electric wire is introduced into the threading part from the guide groove.
  • the winding device arranged next to the connector winds and fixes the wire, and the wire assembly is wound It is fixedly connected with the connector, so that the spiral posture of the wire is maintained by the winding device, which can buffer and reduce the tension at the interface between the wire and the connector, thereby improving the installation strength of the wire.
  • the winding device is fixedly connected to the connector for connecting the wire and guiding the spiral posture of the wire in the long pole assembly.
  • the power cord is arranged to be wound around the winding groove 212, and correspondingly, the signal line 222 is arranged to pass through the threading portion 214.
  • the power cord 221 is arranged to be wound around the winding groove 212 to maintain its spiral posture, and the winding device 210 has only a certain length.
  • the power cord 221 extends from the winding device 210 to the first housing 16 and is attached to the long rod assembly
  • the inside 12 is in the shape of a spring line and is restricted by the long rod assembly 12 along the radial direction of the first straight line 101.
  • the power cord 221 is connected to the power source and the controller on the first housing 16.
  • the signal wire is arranged to pass through the threading portion 214, and the signal wire extending from the threading portion 214 extends in the hollow portion formed by the spring wire, so that the winding device 210 can prevent the power wire 221 and the signal wire from interfering with each other, and can maintain the power supply
  • the wire 221 is in the form of a spring wire in the long rod assembly 12, and the winding device 210 does not need to be fully extended in the long rod assembly 12, which saves materials and can effectively reduce the weight of the whole machine.
  • a second winding structure may be provided on the outer circumference of the threading portion of the winding device to maintain the spiral state of the electric wire extending from the threading 214 outside the winding device.
  • the rod walls of the first connecting rod 122 and the second connecting rod 123 are respectively provided with a side plane 1201 on at least one side, and the side plane 1201 is distributed on at least part of the length of the first connecting rod 122 and the second connecting rod 123, and
  • the side plane 1201 can be made to extend completely on the first connecting rod 122 and the second connecting rod 123 according to requirements.
  • the design of the side plane 1201 makes the long rod assembly 12 convenient for the user to hold.
  • the non-cylindrical design of the first connecting rod 122 and the second connecting rod 123 prevents the user from holding the long rod assembly 12 and long-pressing the assembly to produce sliding rotation, and can effectively prevent the first connecting rod 122 and the second connecting rod 123 The relative rotation.
  • the rod walls of the first connecting rod 122 and the second connecting rod 123 respectively have opposite side planes 1201 on both sides thereof, and a side plane 1201 on the first connecting rod 122 and a side plane 1201 on the second connecting rod 123 Extend in parallel, so that the first connecting rod 122 and the second connecting rod 123 are set as flat tubes, which is convenient for the user to hold, and effectively prevents the relative rotation between the first connecting rod 122 and the second connecting rod 123, so that the The signal wire and power wire 221 arranged in the long pole assembly 12 can be stably fixed, increasing The overall stability of power tools with strong long poles.
  • the long rod assembly 12 further includes a bushing 1202 disposed in the first connecting rod 122, and when the first connecting rod 122 and the second connecting rod 123 at least partially overlap, the bushing 1202 is located on the first connecting rod 122 And the second connecting rod 123.
  • the bushing 1202 is fixedly connected to the second connecting rod 123, and the second connecting rod 123 is oppositely arranged inside the first connecting rod 122.
  • the bushing 1202 is set and sleeved on at least a part of the second connecting rod 123, so that the first connecting rod 122 When at least partially overlapped with the second connecting rod 123, the bushing 1202 is located between the first connecting rod 122 and the second connecting rod 123, thereby effectively preventing the second connecting rod 123 from rotating relative to the first connecting rod 122, and the bushing 1202 It is not necessary to completely lay in the second connecting rod 123 and the first connecting rod 122, thereby effectively saving materials and reducing the weight of the whole machine.
  • the material of the bushing 1202 can be selected from plastic, rubber and the like.
  • the bushing 1202 can be provided with a pipe body sleeved outside the first connecting rod 122 and inside the second connecting rod 123 to prevent relative rotation of the first connecting rod 122 and the second connecting rod 123.
  • the bushing 1202 can also be set in other shapes according to the sizes of the first connecting rod 122 and the second connecting rod 123, such as a spiral shape or a strip shape, which is not limited here.
  • the long rod type electric tool includes a first housing 16a and a motor housing 112a, the controller is arranged and housed in the first housing 16a, and the motor 19a is driven by the motor.
  • the housing 112a is supported, and the first housing 16a and the motor housing 112a are connected through the long rod assembly 12a.
  • the motor housing 112a includes an air inlet 310a, and the air inlet 310a is provided with a plurality of air inlet holes 311a.
  • the long pole electric tool also includes a fan 320a and a wind guide 330a.
  • the wind guide 330a and the motor housing 112a are internally communicated.
  • the fan 320a is connected to the motor 19a and extends out of the motor housing 112a to guide the wind
  • the cover 330a is used for accommodating the fan 320a.
  • the air guide cover 330a is connected to the motor housing 112a and includes an air outlet 331a.
  • An air duct for guiding the heat dissipation airflow is formed between the air outlet 331a and the air inlet 311a.
  • the fan 320a is not provided In the motor housing 112a, the overall size of the motor housing 112a can be effectively reduced, so as to reduce the weight of the motor housing 112a, and facilitate the user's operation and holding.
  • the air inlet 310a includes a first air inlet 313a, and a first air inlet channel is formed between the first air inlet 313a and the air outlet 331a.
  • An air outlet duct is formed at the end of the air duct, and the air outlet duct is parallel to the rotation plane of the fan 320a.
  • the air duct interface gradually increases in the direction toward the air outlet 331a at the end of the air duct.
  • the air outlet 331a includes a blowing port that is vertical or approximately perpendicular to the rotation plane of the fan 320a, so that the air deflector 330a appears as a worm wheel-shaped shell.
  • the heat dissipation airflow in the air duct can be accelerated to be discharged toward the air outlet 331a, and the air discharge efficiency is high, and the heat dissipation effect is good.
  • the air inlet 310a includes a first air inlet 313a and a second air inlet 314a.
  • a second air inlet channel is formed between the second air inlet 314a and the air outlet 331a.
  • the air inlet duct and the second air inlet duct merge in the motor housing 112a, and the airflow generated by the fan 320a respectively flows from the first air inlet duct And the second inlet air enters the motor housing 112a and turns, and is held by the outlet air duct, and the outlet air duct is parallel to the rotation plane of the fan 320a, so as to improve the overall heat dissipation efficiency of the motor housing 112a through the air guide 330a .
  • the diameter of the inlet holes 311a of the first air inlet portion 313a or the first air inlet portion 313a and the second air inlet portion 314a is greater than or equal to 1 mm and less than or equal to 5 mm, so as to prevent the occurrence of long rod electric tools during operation. Dust and wood chips enter the motor housing 112a, affecting the heat dissipation and normal operation of the motor 19a or other components in the motor housing 112a, and the diameter of the air inlet hole 311a is greater than 1 mm, so as to ensure that the air inlet volume of the air duct can meet the heat dissipation requirements .
  • the switch 271 is a current switch 271.
  • the switch 271 is electrically connected to the power supply 23 and the controller 24, and the current flows from the power supply 23. Pass the switch 271, the controller 24 and the motor successively.
  • the handle 27 is located between the power source 23 and the first housing 26, that is, the switch 271 is located between the power source 23 and the controller 24.
  • the controller 24 is basically located below the switch 271, and both the switch 271 and the controller 24 are accommodated in the accommodation space surrounded by the handle 27.
  • the controller 24 may also be located below the switch 271, and the power cord passes through the handle. 27 and the long rod assembly 22. As shown in FIG. 12, the controller 24 is located in front of the switch 271 and is disposed in two different housings with the switch 271, and the power cord passes through the first housing 26 and the long rod assembly 22 at this time.
  • the above description is only the difference between the long rod type electric tool of the third embodiment and the first embodiment, and the rest of the same structure as the long rod type electric tool of the first embodiment can be used in this embodiment.
  • the long rod type electric tool can be set to adjust the angle of its working component lib, and the working component lib is rotatable relative to the first straight line 101b.
  • the long rod type electric tool is further provided with an adjusting assembly 400b.
  • the adjusting assembly 400b includes an adapting rod 115b and a first adjusting piece 410b.
  • the rod 1151b is slidable relative to the first adapting rod 1151b, and the user operates the first adjusting part 410b to make the first adjusting part 410b slide relative to the first adapting rod 1151b, so that the working assembly 1b can be rotated.
  • the adjustment assembly 400b further includes a first locking mechanism 420b, the first locking mechanism 420b is connected to the first adjusting member 41 Ob, the first locking mechanism 420b can be at least switched to the locked state and the unlocked state by the first adjusting member 41 Ob, in the locked state
  • the adjusting assembly 400b is connected to the first adapting rod 1151b and the working assembly lib through the first locking mechanism 420b.
  • the working component lib is rotatable relative to the first adapter rod 1151b, and the working element 111b extends at least partially on the first plane 102b, so that the first plane 102b can rotate around the first straight line 101b.
  • the adapter rod 115b also includes a second adapter rod 115b, and the second adapter rod 115b is sleeved on the first adapter rod. 1151b and connect the work component lib.
  • the first locking mechanism 420b also includes a first locking member 421b that cooperates with the second adapting rod 115b.
  • the first locking member 421b and the second adapting rod 115b are fixedly connected, and the first locking member 421b restricts the working assembly lib in the locked state.
  • the first adjusting member 410b is connected to the first adapting rod 1151b in a rotation-stopping manner.
  • the first adjusting member 410b further includes a rotation-stopping pin 411b.
  • the first locking member 421b includes at least two rotation-stopping holes 422b, a rotation-stopping pin 411b and a rotation-stopping hole 422b is relatively set.
  • the anti-rotation pin 411b is inserted into the anti-rotation hole 422b. Therefore, the user only needs to adjust the sliding of the first adjusting member 410b, so that the first pinning mechanism 420b is unlocked or locked.
  • the adaptor rod 115b and the working head of the working assembly lib are connected in a non-rotational manner, so that the user can hold by hand Department can use long pole electric tools to work.
  • the first adjusting member 41 Ob drives the anti-rotation pin 41 lb to escape from the anti-rotation hole 422b, so that the working assembly lib is unlocked relative to the first adjusting rod and can rotate relatively.
  • An elastic device 412b is installed on the first adjustment member 410b.
  • the elastic device 412b applies a force to the first adjustment member, so that the anti-rotation pin 411b is inserted into the anti-rotation hole 422b, thereby This causes the first locking mechanism 420b to automatically return to the locked state.
  • the user can relatively adjust the direction of the first plane 102b where the working element 111b is located, so that the first plane 102b can rotate around the center line or the first straight line 101b, so as to realize the side cutting of the long rod electric tool
  • the adjustment is convenient for users to use long pole electric tools to operate in different angles and directions, and the angle adjustment method is simple and reliable, which improves the user's operating efficiency.
  • the first adjusting member 410b further includes a rotation-stopping protrusion
  • the first locking member 421b includes at least two rotation-stopping grooves.
  • the first adjusting member 410b is an annular member, and the first adjusting member 410b is sleeved on the first adapting rod 1151b, and the user moves the annular first adjusting member 410b relative to the first adapting rod 1151b. Move, thereby unlocking or locking the first locking mechanism 420b, which is convenient for users to use.
  • the long rod type electric tool further includes a rotating shaft 430b and a second adjusting member 440b, the rotating shaft 430b is connected to the working assembly lib, the axis of the rotating shaft 430b is arranged in parallel with the first plane 102b, and the second adjusting member
  • the 440b is arranged on the second adapter rod 115b and can slide relative to the second adapter rod 115b.
  • the long rod type electric tool also includes a second locking mechanism 450b. The second locking mechanism 450b can be locked and unlocked by the second adjusting member 440b.
  • the adjusting assembly 400b When the second locking mechanism 450b is locked, the adjusting assembly 400b is fixedly connected to the second adapting rod 115b and When unlocking, the working component lib is rotatable about the rotation axis 430b relative to the second adapter rod 115b.
  • the second locking mechanism 450b includes a positioning pin 451b and a second locking member 452b, positioning The pin 451b is connected to the second adjusting member 410b, and the second locking member 452b is sleeved outside the rotating shaft 430b and has at least two pin holes.
  • the positioning pin 451b is inserted into the pin hole to keep the locking mechanism in lock.
  • the member 410b controls the positioning pin 451b to escape from the pin hole, so that the working assembly 11b can rotate relative to the rotating shaft 430b relative to the adapter rod 115b.
  • the second locking mechanism 450b further includes a movable member 453b and an elastic member 1252b.
  • the movable member 453b is connected to the second adjusting member 410b and the positioning pin 451b.
  • the elastic member 1252b is disposed between the positioning pin 451b and the movable member 453b, and provides a holding force for the locking mechanism to maintain the lock.
  • the second adapter rod also includes an extension connected to the working head.
  • the extension extends obliquely with respect to the first straight line 101b.
  • the rotating shaft 430b is connected to the working head at one end, and connected to the extension at one end, so as to realize the relative adjustment of the working head. Turn the connection.
  • the movable part 453b is provided with a rotating shaft at one end, and the movable part 435b is inclined at a fixed angle, so that when the movable part 435b is driven to slide by the second adjusting part, the positioning pin connected with the movable part 435b is separated or inserted through the rotation of the rotating shaft ⁇ .
  • the oblique extension of the extension makes the working head lower than the long rod assembly, so that the center of gravity of the work assembly moves down.
  • the distance between the center of gravity of the work assembly and the axis of the extension in this embodiment is greater than or equal to 8 mm, and less than or Equal to 15mm.
  • the horizontal distance between the center of gravity and the axis of the rotating shaft is greater than or equal to 35mm and less than or equal to 50mm.
  • the distance between the center of gravity and the lower end of the working element is 20-30mm.
  • the structure of the working assembly can enhance the user's sense of operation.
  • the pin hole also includes a first pin hole 454b for adjusting the working position of the working assembly 11b, and a second pin hole 455b for maintaining the working assembly lib in the storage position.
  • the user sets the positioning pin 451b Into different first-type pin holes to adjust the rotation angle of the working assembly l ib relative to the rotating shaft, adjust the angle between the center line of the working head and the first axis, so as to realize different working positions and angles, which is convenient for users.
  • the adjustment method by the second adjustment member 440b is simple and reliable, which improves the user's sense of use and work efficiency.
  • the user passes through the second adjusting member 440b and rotates the working head, so that when the positioning pin 451b is located in the second-type pin hole, the working element 111b points to the holding portion, and the second locking mechanism 450b is caused by the second adjusting member 440b Locked, so that the working head is maintained at the corresponding rotating position, and the angle between the first plane 102b and the first straight line 101b is less than 20 degrees.
  • the working component lib is in the storage position, which is convenient for the user to store and carry long pole electric tools.
  • the working assembly 11b further includes a safety switch 460 connected to the motor, and the second adaptor rod 115b includes a trigger device.
  • the trigger device triggers the safety switch 460.
  • the pin 451b is located in the second pin hole 455b, the trigger device is separated from the safety switch 460, and the safety switch 460 is turned off. Therefore, when the working component lib is set in the storage position, the safety switch 460 is turned off, and the working component lib cannot be triggered to turn on.
  • the working component lib will not start because the user accidentally triggers the trigger. Work, thereby causing accidental injury or damage to the user or the current environmental items.
  • the safety factor of the working component lib is improved, and the user does not need to press the safety switch 460 to shut down the operation of the whole machine separately, which is convenient for the user to operate.
  • the first adjusting piece 410b and the second adjusting piece 440b are ring-shaped pieces, and the first adjusting piece 410b is sleeved on the first adapting rod 1151b, and the second adjusting piece 440b is sleeved on the second adapting rod. ⁇ 115b.
  • the long rod type electric tool can also be supported by holding the first adjusting member 410b or the second adjusting member 440b, It is convenient for the user to adjust the angle or rotation of the working assembly l ib, and when the working assembly l ib is operated to switch the angle or rotate, the long rod type electric tool can be held stably.
  • the annular structure of the first adjusting member 410b and the second adjusting member 440b improves the strength of the first adjusting member 410b and the second adjusting member 440b, thereby increasing their overall service life.
  • the trigger device is configured as a semi-annular protrusion, and when the positioning pin is locked in the first pin hole of the second locking structure, the trigger device is driven to rotate to trigger the safety switch, and the long pole electric tool run.
  • the triggering device is driven to rotate away from the safety switch, and the long pole electric tool stops running when it is powered off.
  • the working component lib is the pruning machine component 122, and the corresponding working component 111b is the pruning shear 1112b.
  • the working component lib may also be a chain saw component 113 or a vacuum cleaner component.
  • the adjustment assembly is only provided with the first adjustment member, the adapting rod and the first locking mechanism, and the working assembly is achieved through the cooperation of the first adjustment member, the adapting rod and the first locking mechanism.
  • the side-cut rotation adjustment that is, the working assembly is rotatable relative to the first straight line through the first adjusting member, the adapting rod and the first locking mechanism, and can be fixed in its rotating position for user operation.
  • the adjustment assembly is only provided with the second adjusting member, the adapting rod, the rotating shaft, and the second locking mechanism, and the second adjusting member, the adapting rod, the rotating shaft, and the second locking mechanism
  • the cooperation realizes the rotation adjustment of the working assembly around the rotating shaft, that is, the first adjusting member, the adapting rod and the first locking mechanism make the working assembly rotatable relative to the axis of the rotating shaft, and can be fixed in its rotating position for user operation .

Abstract

一种长杆类电动工具（100），包括：工作组件（11），包括用于输出作业的工作元件（111）和驱动工作元件（111）的马达（19a）；握持部（170），握持部（170）供用户握持；电源（13），为马达（19a）供电；控制器（14），用于控制马达（19a）转动，控制器（14）分别与电源（13）和马达（19a）构成电连接；马达壳体（112a），马达（19a）被马达壳体（112a）支撑，马达壳体（112a）包括进风部（310a），进风部（310a）设有多个进风孔（311a）；长杆组件（12），连接握持部（170）和马达壳体（112a）；风扇（320a）；导风罩（330a），用于容纳风扇（320a）并包括：出风部（331a），出风部（331a）和进风孔（311a）之间形成用于引导散热气流的风道，风道在其末端在朝向出风部的方向上风道截面逐渐增大。长杆类电动工具提升了工作组件的散热效率和运行性能。

Description

长杆类电动工具
本申请要求在 2019年 02月 27日提交中国专利局、申请号为 201910144033.6 的中国专利申请的优先权， 要求在 2019年 04月 04日提交中国专利局、 申请号 为 201910268868.2的中国专利申请的优先权， 该申请的全部内容通过引用结合 在本申请中。 技术领域
本申请涉及电动工具领域， 例如涉及一种长杆类电动工具。 背景技术
长杆类电动工具作为一种常用的园林工具一般包括连接具有一定长度的长 杆组件， 长杆组件一端连接工作组件以增加用户的可操作高度。 为方便存储和 多功能利用， 将长杆类电动工具的工作头设置为可拆卸可替换式， 同时将马达 设置于工作头中。 因为长杆组件长度较高， 用户在不同的操作场景中需要不同 的工作组件的工作角度， 在操作不能调节侧切角度的长杆类电动工具时， 用户 需要自身调整姿态以实现角度调节， 增加了使用疲劳感， 且不能满足一些特殊 场景的使用需求。 发明内容
本申请提供一种长杆类电动工具， 所述长杆类电动工具提升了工作组件的 散热效率和运行性能。
本申请提供一种长杆类电动工具， 包括： 工作组件， 包括用于输出作业的 工作元件和驱动工作元件的马达； 握持部， 握持部供用户握持； 电源， 为马达 供电； 控制器， 用于控制马达转动， 控制器分别与电源和马达构成电连接； 第 一壳体， 控制器被设置容纳于第一壳体； 马达壳体， 马达被马达壳体支撑， 马 达壳体包括进风部， 进风部设有多个进风孔； 长杆组件， 连接握持部和马达壳 体； 长杆类电动工具还包括： 风扇， 风扇连接于马达并伸出马达壳体； 导风罩， 导风罩连接于马达壳体， 用于容纳风扇并包括： 出风部， 出风部和进风孔之间 形成用于引导散热气流的风道， 风道在其末端在朝向出风部的方向上风道截面 逐渐增大。
可选的， 进风孔的直径大于或等于 lmm并小于或等于 5mm。
可选的， 风道末端形成出风风道， 出风风道与风扇的转动平面平行。 i 可选的， 长杆类电动工具包括散热件， 散热件安装至控制器， 散热件与控 制器构成直接接触或者通过导热件间接接触； 散热件连接至长杆组件， 与长杆 组件成直接接触或者通过导热件间接接触。
可选的， 散热件形成有贴合至少部分长杆组件表面的接触面， 接触面为一 个连续曲面或者多个非连续面。
可选的， 长杆组件沿径向形成有向外凸起的凸筋， 凸筋沿长杆组件的轴向 或者周向延伸； 散热件形成有与凸筋配合的凹槽， 沿周向或者轴向限定长杆组 件相对于散热件的位置。
可选的， 控制器包括电路板， 电路板包括基板， 散热件连接至基板； 电路 板还包括安装至基板的电子元件， 基板具有一个用于安装电子元件的安装面， 散热件连接至与安装面相对的另一面； 基板的材质为导热金属。
本申请提供一种长杆类电动工具， 包括： 工作组件， 包括用于输出作业的 工作元件和驱动工作元件的马达； 握持部， 握持部供用户握持； 电源， 为马达 供电； 控制器， 用于控制马达转动， 控制器分别与电源和马达构成电连接； 马 达壳体， 马达被马达壳体支撑， 马达壳体包括进风部， 进风部设有多个进风孔; 长杆组件， 连接握持部和马达壳体； 长杆类电动工具还包括： 风扇； 导风罩， 用于容纳风扇并包括： 出风部， 出风部和进风孔之间形成用于引导散热气流的 风道， 风道在其末端在朝向出风部的方向上风道截面逐渐增大。
可选的， 风扇连接于马达并伸出马达壳体， 导风罩连接于马达壳体。
可选的， 长杆类电动工具还包括连接器， 连接器设置于长杆组件一端， 工 作组件可插拔地与连接器电连接； 电线， 电线设置于长杆组件内用于实现电连 接； 长杆类电动工具还包括用于支撑电线的绕线装置， 绕线装置和连接器连接; 绕线装置包括线轴和环绕线轴的绕线槽， 至少部分电线被设置沿着绕线槽延伸 以缠绕线轴， 以使得电线在长杆组件内维持螺旋姿态。
可选的， 连接器包括嵌合槽， 绕线装置一端设有嵌合件， 嵌合件被设置插 入嵌合槽使得绕线装置被连接器固定。
可选的， 长杆类电动工具还包括开关， 安装到握持部， 用于控制马达运行; 长杆组件连接于握持部并至少包括第一连接杆和第二连接杆， 第二连接杆和第 一连接杆构成可伸缩连接， 第一连接杆和第二连接杆相对伸缩使得长杆组件具 有至少第一长度和第二长度； 长杆组件包括安装装置， 用于可拆卸地安装工作 组件， 工作组件至少被实施为至少两种工作组件， 其中至少一种工作组件一端 设有延长杆， 延长杆连接到安装装置以安装工作组件， 且使得长杆类电动工具 的最大长度大于或等于 3.5m。 可选的， 工作组件的一种是修枝机组件， 修枝机组件包括修枝机工作头， 修枝机工作头连接到安装装置并且长杆组件处于最长长度时， 工作元件末端到 开关的距离小于或等于 3.5m。
可选的， 安装装置包括： 操作装置， 操作装置安装于第一连接杆； 连接部， 连接部设置于工作组件， 操作装置被操作可拆卸地连接于连接部。
可选的， 连接部为设置在工作组件的安装孔， 操作装置包括： 适配部， 与 安装孔连接； 弹性件， 安装于适配部； 适配部可被弹性件维持在安装孔内， 以 固定连接第一连接杆和工作组件。
可选的， 长杆组件包括穿过长杆组件轴心的第一直线， 工作元件具有沿着 其中心延伸的中心线， 在工作组件安装到长杆组件后， 中心线偏离第一直线。
可选的， 中心线与第一直线的直线距离大于或等于 5mm 并小于或等于 10mm。
可选的， 长杆组件连接于握持部并包括第一连接杆和第二连接杆， 第二连 接杆和第一连接杆构成可伸缩连接， 第一连接杆和第二连接杆被设置为扁管。
可选的， 连接杆还包括设置在第一连接杆内的衬套， 且在第一连接杆和第 二连接杆至少部分重叠时， 衬套位于第一连接杆和第二连接杆之间。
可选的， 长杆类电动工具还包括调节组件， 调节组件包括:适配杆， 适配杆 适配连接长杆组件和工作组件， 适配杆至少包括第一适配杆， 第一适配杆至少 部分沿着第一直线延伸； 第一调节件， 第一调节件设置于第一适配杆上并可相 对第一适配杆滑动； 第一锁定机构， 连接于第一调节件， 第一锁定机构至少可 被第一调节件切换到锁定状态和解锁状态， 在锁定状态时， 调节组件通过第一 锁定机构止转连接第一适配杆和工作组件； 在解锁状态下， 工作组件相对第一 适配杆可旋转， 以使得第一平面可以绕第一直线转动。
可选的， 适配杆还包括： 第二适配杆， 第二适配杆套接于第一适配杆并连 接工作组件； 第一锁定机构还包括： 第一锁定件， 第一锁定件和第二适配杆固 定连接， 第一锁定件在锁定状态下限制工作组件相对适配杆转动。
可选的， 第一调节件与第一适配杆止转连接， 第一调节件还包括止转销， 第一锁定件包括至少两个止转孔， 在锁定状态下， 止转销置入止转孔。
可选的， 长杆类电动工具还包括： 转动轴， 连接工作组件， 转动轴的轴线 与第一平面平行设置； 第二调节件， 第二调节件设置于第二适配杆上并可相对 第二适配杆滑动； 第二锁定机构， 第二锁定机构可被第二调节件锁定和解锁， 在第二锁定机构锁定时， 调节组件固定连接第二适配杆和工作组件； 在解锁时， 工作组件相对第二适配杆可绕转动轴旋转。 可选的， 第二锁定机构包括： 定位销， 定位销连接于第二调节件； 第二锁 定件， 第二锁定件套接于转动轴外， 并至少具有两个销孔， 定位销插入销孔以 使得锁定机构维持锁定， 通过第一调节件控制定位销脱离销孔， 以使得工作组 件相对适配杆可相对转动轴旋转。
可选的， 第二销定机构还包括： 活动件， 活动件连接第二调节件和定位销； 弹性件， 弹性件设置在定位销和活动件之间， 提供使得锁定机构维持锁定的保 持力。
可选的， 销孔还包括用于调节工作组件作业位置的第一销孔， 以及用于维 持工作组件在收纳位置的第二销孔， 在定位销位于第二销孔时， 工作元件指向 握持部， 且第一平面和第一直线的夹角小于 20度。
可选的， 工作组件还包括与马达连接的开关， 第二适配杆包括触发装置， 在定位销位于第一销孔内时， 触发装置触发开关， 在定位销位于第二销孔内时, 触发装置脱离开关， 开关断开。
可选的， 第一调节件和第二调节件为环形件， 并且第一调节件套接于第一 适配杆， 第二调节件套接于第二适配杆。
可选的， 工作组件的重心与转动轴的轴线水平距离大于或等于 35mm, 并小 于或等于 50mm, 工作组件的重心与工作元件的下端面距离为大于或等于 20mm 并小于或等于 30mm。
可选的， 第一连接杆和第二连接杆的杆壁分别在其两侧具有相对设置的侧 平面。
可选的， 长杆类电动工具还包括： 握持部， 形成有供用户握持的把手； 开 关， 用于控制马达， 开关电连接至控制器且安装至把手； 第一壳体， 第一壳体 形成有用于容纳控制器的容纳空间； 工作组件包括第二壳体， 马达容纳至第二 壳体； 把手靠近第一壳体设置。
可选的， 第一壳体相对于长杆组件更靠近长杆组件连接电源的一端。
附图说明
图 1是本申请的第一实施例的长杆类电动工具的示意图;
图 2是图 1中的长杆类电动工具的部分结构的立体图；
图 3是图 1中的长杆类电动工具的部分结构的爆炸图；
图 4是图 1中的长杆类电动工具的部分结构的剖视图； 图 5是图 1中的长杆类电动工具的控制器和散热件的示意图； 图 6是图 1中的长杆类电动工具的散热件的立体图；
图 7 是本申请的第一实施例的长杆类电动工具的电源、 控制器、 开关以及 马达的连接示意图；
图 8是本申请的第一实施例的长杆类电动工具的部分结构的示意图； 图 9是本申请的第一实施例的长杆类电动工具的部分结构的示意图； 图 10是本申请的第一实施例的长杆类电动工具为链锯的立体结构示意图； 图 11 是本申请的第一实施例的长杆类电动工具为修枝机的立体结构示意 图；
图 12是本申请的第一实施例的长杆类电动工具的部分结构的剖视图； 图 13是本申请的第一实施例的长杆类电动工具的连接部的示意图； 图 14是本申请的第一实施例的长杆类电动工具的尺寸示意图；
图 15是本申请的第一实施例的长杆类电动工具为链银的立体结构示意图； 图 16是本申请的第一实施例的长杆类电动工具的连接器的结构示意图； 图 17是本申请的第一实施例的长杆类电动工具的绕线装置的立体结构示意 图；
图 18是本申请的第一实施例的长杆类电动工具的绕线装置的平面结构示意 图；
图 19A、 图 19B是本申请的第一实施例的长杆类电动工具的连接器和绕线 装置的结构示意图；
图 20是本申请的第一实施例的长杆类电动工具的部分剖面示意图； 图 21是本申请的第二实施例的长杆类电动工具的立体结构示意图； 图 22是本申请的第二实施例的长杆类电动工具的链银工作头结构示意图； 图 23是本申请的第二实施例的长杆类电动工具的链锯工作头剖视图； 图 24是本申请的第三实施例的长杆类电动工具的电源、 控制器、 开关以及 马达的连接示意图；
图 25是本申请的第三实施例长杆类电动工具的部分结构的示意图； 图 26是本申请的第三实施例的长杆类电动工具的部分结构的示意图； 图 27是本申请的第四实施例的长杆类电动工具的修 ·枝机工作头部分结构的 示意图；
图 28是本申请的第四实施例的长杆类电动工具的修枝机工作头部分结构的 平面示意图；
图 29是本申请的第四实施例的长杆类电动工具的彳务枝机工作头部分结构的 剖视图；
图 30是本申请的第四实施例的长杆类电动工具的第一锁定机构的结构图； 图 31是本申请的第四实施例的长杆类电动工具的第二锁定机构的结构图； 图 32是本申请的第四实施例的长杆类电动工具的触发装置和安全开关的结 构示意图。
具体实施方式
本申请的长杆类电动工具为一种常用的园林类工具。 以下结合附图和实施 例对本申请进行介绍。
如图 1、 图 2所示， 长杆类电动工具 100包括工作组件 11、 马达（未示出）、 杆系统， 杆系统可拆卸地适配工作组件， 杆系统包括长杆组件 12以及电源 13。 工作组件 11 包括工作头， 电源 13设置于工作头内， 工作头包括用于输出动力 以实现长杆类电动工具 100的功能的工作元件 111 , 本实施例中， 工作元件 111 为锯链， 因此长杆类电动工具 100为链锯。 当然， 根据工作元件 111 的不同， 长杆类电动工具 100也可以是修枝剪、 砂光机、 吸尘器、 多功能工具等， 作为 另一种可能的实施方式， 长杆类电动工具 100的工作组件 11可以更换， 带有不 同工作元件 111的工作组件 11能够与长杆组件 12构成可适配的电连接，工作组 件可以被实施为为链锯组件、 修枝机组件、 吸尘器组件的一种。 因此， 长杆类 电动工具 100的类型不作限制。 本实施例中电源 13为电池包， 可以理解的， 该 长杆类电动工具 100也可以接交流电源或者交直流转换电源。 马达用于驱动工 作元件 111运动，可选为马达。长杆组件 12至少部分沿第一直线 101方向延伸， 本实施例中长杆组件 12均沿第一直线 101延伸。 长杆组件 12的一端连接至工 作组件 11以增加用户的可操作长度， 工作组件 11和长杆组件 12构成可拆卸连 接， 可以是可拆卸的固定连接， 也可以是可拆卸的活动连接， 连接方式不作限 定。 本实施例中的长杆组件 12为由多层杆构成的伸缩杆， 增强用户的可操作长 度以及减少机器的储存空间。 长杆组件 12由导热材料制成， 考虑到长杆组件 12 的所需强度， 一般采用金属材料， 本实施例中长杆组件 12可选由铝材制成。
长杆类电动工具 100还包括用于控制马达转动的控制器 14 , 以及安装至控 制器 14的散热件 15。 可选地， 马达工作时， 由于电阻以及其他元件发热导致控 制器 14整体温度上升， 因此控制器 14需要散热结构对其进行散热以保证其正 常工作。
长杆类电动工具 100包括第一壳体 16,第一壳体 16形成有用于容纳控制器 14的容纳空间； 长杆组件 12—端连接至工作组件 11 , 另一端连接至第一壳体 16。 同时， 电池包连接至第一壳体 16。 工作组件 11包括第二壳体 112， 马达容 纳至第二壳体 112; 长杆组件 12—端连接至第一壳体 16， 另一端连接至第二壳 体 112。 也即是说， 马达和控制器 14分别设置于工作组件 11的第二壳体 112和 第一壳体 16中， 第二壳体 112与第一壳体 16连接至长杆组件 12的首尾两端。 这样的设置能够平衡整机的重量， 用户在操作时更加方便省力， 同时， 将马达 设置于工作组件 11中能够方便更换、 适配不同的工作组件 11。 但是， 由于马达 与控制器 14距离较远， 控制器 14的散热问题较难解决， 本申请则巧妙利用了 长杆组件 12的热传导性作为一个巨大的散热器对控制器 14进行散热。 作为一 种可选择的实施方式， 马达也容纳于第一壳体 16中， 如此设置能够利用马达风 扇同时对控制器 14散热， 提高控制器 14的散热效杲。 作为另一种可选择的实 施方式， 长杆类电动工具 100还包括握持部 170， 形成有供用户握持的把手 17 , 把手 17连接至长杆组件 12， 控制器 14和散热件 15容纳至把手 17内， 如此设 置能够充分利用把手 17形成的容纳空间， 简化整机结构。
如图 1至图 6所示， 控制器 14包括电路板， 电路板为控制器 14的主要发 热部件， 因此在电路板上安装散热件 15对电路板进行散热， 电路板与散热件 15 构成直接接触或者通过导热件间接接触。 散热件 15和电路板构成面接触以充分 传热， 由于电路板和散热件 15为固体接触， 为避免接触不够紧密， 因此在电路 板和散热件 15之间设置使得它们构成紧密接触的材料， 例如可以在散热件 15 和电路板之间设置硅胶材料或者在它们两者之间设置使得它们两者构成紧密连 接的垫片等， 可选导热娃胶垫。散热件 15—般而言为导热材料制成， 例如铝材。
电路板包括基板 141和安装至基板 141的电子元件 142 , 散热件 15连接至 基板 141。 可选地， 长杆类电动工具 100还包括用于支撑电路板的控制器 14， 基板 141 固定至控制器 14 , 散热件 15通过紧固件固定连接至控制器 14。 基板 141 的材质为导热金属， 本实施例中为铭板。 基板 141 为一个矩形薄板， 基板 141具有一个用于安装电子元件 142的安装面 141a, 散热件 15连接至与安装面 141a相对的另一面， 且散热件 15连接至基板 141的面与基板 141平行。 这使得 电子元件 142与散热件 15在基板 141上的安装更力 P方便， 同时散热件 15对电 子元件 142的散热更力 P充分； 作为一种可选择的实施方式， 电子元件 142安装 至基板 141的两个相对面， 散热件 15安装至其中一个面， 这种设计可以在电子 元件 142较多时充分利用空间。 散热件 15连接至长杆组件 12,散热件 15与长杆组件 12构成直接接触或者 通过导热件间接接触。 散热件 15通过连接件 18连接至长杆组件 12， 连接件 18 至少限定散热件 15相对于长杆组件 12沿一个方向发生移动， 一个方向指的是 长杆组件 12的轴向、 径向以及周向中的一个。 本实施例中， 散热件 15通过连 接件 18连接至长杆组件 12 , 连接件 18至少限定散热件 15相对于长杆组件 12 沿径向发生移动。 至于散热件 15相对于长杆组件 12在其他方向上的位置固定 可以通过第一壳体 16自身尺寸的限位或者其他限位结构实现， 从而简化结构、 使得安装更加方便。 例如， 长杆组件 12沿径向形成有向外凸起的凸筋 121， 凸 筋 121沿长杆组件 12的轴向或者周向延伸； 相应地， 散热件 15形成有与凸筋 121配合的凹槽 151，沿周向或者轴向限定长杆组件 12相对于散热件 15的位置。 本实施例中， 长杆组件 12沿径向形成有向外凸起的凸筋 121 , 凸筋 121沿长杆 组件 12的轴向延伸； 散热件 15形成有与 6筋 121配合的凹槽 151 , 沿周向限定 长杆组件 12相对于散热件 15的位置。 也可以采用其他连接件和紧固件实现散 热件 15相对于长杆组件 12在三个方向上的位置固定。
散热件 15可以与长杆组件 12构成直接接触， 也可以通过导热件间接接触。 散热件 15包括连接部 152和散热部 153 ,连接部 152用于将散热件 15连接至长 杆组件 12 , 散热部 153用于与长杆组件 12接触进行散热。 为保证散热件 15与 长杆组件 12充分接触以充分利用长杆组件 12导热， 散热部 153形成有贴合至 少部分长杆组件 12表面的接触面 153a， 接触面 153a为一个连续曲面或者多个 非连续面。 本实施例中， 接触面 153a为贴合部分长杆组件 12表面的连续曲面， 该连续曲面沿周向的延伸长度大约为长杆组件 12横截面的周长的一半， 散热部 153连接至长杆组件 12的下部。 同时， 采用与散热件 15轴向长度基本相等的半 环形连接件 18包裹住对应散热件 15位置的长杆组件 12的上部， 连接部 152与 连接件 18采用四个螺栓固定。 散热件 15关于第一直线 101对称。 需要说明的 是， 散热件 15的数量可以是多个。
散热部 153与长杆组件 12接触的接触面 153a的面积为传热面积 S , 基板 141面积为 A，设置有传热系数 =3/八， 为了保证电路板得到充分散热的同时降 低成本， 传热系数 K大于或等于 0.5且小于或等于 2。
电源 13连接至第一壳体 16 , 由于第一壳体 16和第二壳体 112分别连接至 长杆组件 12的两端， 因此电源 13和工作组件 11分别连接至长杆组件 12的两 端。 控制器 14用于控制马达的运转， 可选地， 控制器 14可用于控制马达的启 动与停止， 控制器 14还可以控制马达的转动速率以及转动方向等。 控制器 14 分别与电源 13和马达构成电连接。 电源 13控制器 14还可以与马达构成信号连 接。 开关 171用于控制马达， 开关 171电连接至控制器 14且安装至把手 17; 把 手 17靠近第一壳体 16设置， 也即是说开关 171靠近控制器 14设置。 这相比现 有技术中控制器设置于工作组件因此控制器远离开关， 本申请的方案使得电线 的布置更加简洁， 这对于电动工具， 尤其是电线穿过长杆的长杆类电动工具而 言， 不仅降低了生产成本， 还提高了连接的稳定性。 可选地， 第一壳体 16相对 于长杆组件 12更靠近长杆组件 12连接电源 13的一端， 把手 17相对于长杆组 件 12更靠近长杆组件 12连接电源 13的一端， 这使得整机结构排布更加有利用 用户握持操作， 用户一只手握持把手 17同时操作开关 171， 另一只手握持杆部， 把手 17和控制器 14的位置靠近电源 13端使得用户操作更加方便灵活， 更加符 合人机工程学。
如图 2、 图 7至图 9所示， 本实施例中， 开关 171为信号开关 171 , 开关 171 与控制器 14构成电连接和通信连接。 也即是说， 开关 171不连接至电源 13 , 仅 仅与控制器 14通过信号线连接。 而电源 13、 控制器 14、 马达三者之间通过电 源线依次构成电连接。 把手 17靠近第一壳体 16设置使得开关 171靠近控制器 14, 如图 7 , 开关 171相对于控制器 14的位置有多种。 图 2中， 控制器 14位于 开关 171后端， 且控制器 14与开关 171分别容纳至两个不同的壳体中， 机第一 壳体 16和把手 17， 此时连接控制器 14和开关 171的信号线穿过两个壳体或者 穿过两个壳体以及长杆组件 12内部。作为一种可选择的实施方式，如图 8所示， 控制器 14基本位于开关 171的下方， 且开关 171和控制器 14均容纳至把手 17 围绕形成的容纳空间中， 针对此结构， 控制器 14也可以相对于开关 171位于其 他位置。 作为另一种可选择的实施方式， 如图 9所示， 控制器 14位于开关 171 的前方且与开关 171分别设置于两个不同的壳体中。
另外， 如图 1和图 8所示， 长杆类电动工具还包括第一风扇 （未示出）和 第二风扇 143， 第一风扇用于为马达散热， 第一风扇连接至马达且容纳于第二壳 体 112中； 第二风扇 143用于为控制器 14散热， 第二风扇 143容纳至第一壳体 16中， 第二风扇 143 自带驱动马达。 如图 8所示， 本申请在采用散热件 15和导 热的长杆组件 12对控制器 14进行散热的同时还设置有用于为控制器 14散热的 第二风扇 143 , 第二风扇 143和控制器 14均设置于把手 17内， 第二风扇 143能 够加强控制器 14的散热效果； 作为一种可选择的实施方式， 本申请仅采用设置 于第一壳体 16的第二风扇 143为控制器 14散热， 不采用散热件 15 , 且控制器 14连接至第一壳体 16。 第一壳体 16上开设有供气流流通的进风口和出风口。 当开关 171和控制器 14均容纳至把手 17内部时， 把手 17上开设有进风口和出 风口， 气流依次流经开关 171和控制器 14或者控制器 14和开关 171。
参照图 10到图 13， 长杆组件 12连接于握持部 170并至少包括第一连接杆 122和第二连接杆 123 , 第二连接杆 123和第一连接杆 122构成可伸缩连接， 第 一连接杆 122和第二连接杆 123相对伸缩使得长杆组件 12具有至少第一长度和 第二长度； 通过切换第一连接杆 122和第二连接杆 123的相对伸长或缩短状态， 以切换长杆组件 12到第一长度或第二长度， 从而通过改变长杆组件 12的长度 以实现长杆类电动工具的总体长度， 以适应不同工况的作业需求， 方便用户操 作。 握持部 170包括握持部壳体， 握持部壳体与第一壳体 16固定连接， 并供用 户握持。 在另一种实施方式中， 握持部 170还包括辅助把手 172， 辅助把手 172 设置在握持部 170尾端， 用户在使用长杆类电动工具时， 可分别握持把手 172 和把手 17， 从而稳定地操作长杆类电动工具作业。
参照图 12, 长杆组件 12还包括安装装置 124， 用于可拆卸地安装工作组件 11 , 以链锯 110为例， 在长杆类电动工具为链锯 110时， 工作组件 11包括链锯 组件 113 , 对应的工作元件 111 包括锯链 1111 , 工作组件 11还包括导板， 导板 用于导向锯链 1111， 锯链 1111围绕沿导板转动。
参照图 10和图 14 ,链锯组件 113包括链锯工作头和自链锯工作头一端延伸 的延长杆 114， 延长杆 114连接到安装装置 124以安装链锯组件 113 , 从而可以 在杆系统的基础上延伸链锯 110 的整机长度， 延长杆 114的长度 L1被设置在 0.8-1.7m之间。使得杆系统适配的链锯组件 113形成的链锯 110的最大长度大于 或等于 4m。 可以满足用户对链锯 110较长长度的使用需求。 在本申请的一种实 施方式中， 工作组件的工作头和延长杆固定连接。 在另一种实施方式中， 工作 组件的工作头通过螺钉、 螺纹或者其它可拆卸连接结构， 与延长杆构成可拆卸 连接。
参照图 11 , 长杆类电动工具还可以是修枝机 120, 工作组件 11对应的包括 修枝机组件 122 , 工作元件 111包括修枝剪 1112 ,修枝机组件 122可适配连接杆 系统作为修枝机 120。 修枝机组件包括传动装置， 马达通过传动装置驱动修枝剪 1112运动， 传动组件包括减速机构 （图未示） ， 减速机构至少具有第一齿轮和 第二齿轮， 用于实现马达和刀片组件之间的动力传递。 第二壳体还包括用于容 纳传动组件的齿轮箱， 齿轮箱形成容纳腔室用于容纳传动组件。 传动组件设置 在马达和刀片之间。 在本申请的一个实施方式中， 第二壳体上设有连通容纳腔 室的注油孔 150 , 注油孔 150相对设置于马达下方。 通过注油孔 150可以向齿轮 箱内的传动组件注入油脂， 从而对减速机构进行润滑， 可以有效降低传动组件 的磨损， 从而延长传动组件的使用寿命。
参照图 14， 用户在使用修枝机 120时需要不断挥动修枝机 120, 因此修枝 机 120不能过长防止用户疲劳， 修枝机组件 122不设有延长杆， 且修枝机组件 122还连接适配杆 115， 适配杆 115连接工作头， 工作组件 11通过适配杆 115 直接连接到杆系统， 适配杆 115的长度小于延长杆 114的长度， 并使得工作元 件 111末端到开关的距离 L2小于或等于 3.5m。 防止杆系统适配的修枝机组件 122 形成的修枝机 120 过长不符合安全标准， 并且杆系统通过适配具有延长杆 114的链锯组件 113， 有效提升链锯 110整机长度， 满足用户对链锯 110的使用 长度需求。
操作图 10和图 12， 安装装置 124包括操作装置 125和连接部 126, 操作装 置 125安装于长杆组件； 连接部 126设置于工作组件 11 , 操作装置 125被操作 可拆卸地连接于连接部 126。 连接部 126设置在链锯 110的延长杆 114上， 或者 修枝机 120的工作头上， 用于与第一连接杆 122匹配。
在安装装置 124的一种实施方式中， 连接部 126为设置在工作组件 11的安 装孔， 操作装置 125包括适配部 1251和弹性件 1252 , 适配部 1251与安装孔连 接； 弹性件 1252安装于适配部 1251 ; 适配部 1251可被弹性件 1252维持在安装 孔内， 以固定连接第一连接杆 122和工作组件 11。 通过操作操作装置 125， 使 得适配部 1251和安装孔脱离， 从而可将工作组件 11从相对长杆组件 12脱离， 并可使得长杆组件 12安装其他的工作组件 11，从而实现杆系统对不同工作组件 11的匹配。 只需要购买一个杆系统， 匹配不同的工作组件 11 , 从而可以降低成 本。 连接部 126还可以为设置为螺纹装置， 对应的适配部 1251被选为带有匹配 螺纹的套管， 从而使得连接部 126和适配部 1251可以旋转连接。 连接部 126和 适配部 1251也可以通过其它快装方式连接， 在此不再详述。
参照图 15， 长杆组件 12包括穿过长杆组件 12轴心的第一直线 101， 工作 元件 111具有沿着其中心延伸的中心线 103 , 并且工作元件 111至少部分沿着第 一平面 102延伸。 在工作组件 11安装到长杆组件 12后， 中心线 103和第一直 线 101平行设置， 且中心线 103偏离第一直线 101。 第二壳体 112除了用于安装 马达外， 还用于支撑工作元件 111， 第二壳体 112连接工作元件 111的部分设有 偏移结构，或第二壳体 112连接到延长杆 114或适配杆 115的部分设有偏移结构， 从而使得中心线 103和第一直线 101在工作组件 11安装到长杆组件 12后偏移， 通过中心线 103 偏离第一轴线的一段距离， 从而使得工作头的重心相对长杆组 件 12偏移， 在用户手持长杆组件 12使用长杆类电动工具时， 工作头容易通过 重力作用自动翻转， 使得工作元件 111 所在的第一平面 102与地面垂直， 从而 用户不需要施加额外的力翻转长杆类电动工具， 方便用户使用。 中心线 103 与 第一直线 101的直线最短距离大于或等于 5mm并小于或等于 10mm， 从而在保 证用户的操作习惯的前提下， 通过设置工作头的重心位置以使得所述长杆类电 动工具在被用户握持时因为重力作用翻转使得工作元件 111 所在的平面与地面 垂直。
在另一种实施方式中，工作组件 11的工作头的制作材料或体积分布被设置， 使得所述工作头的重心相对中心线 103 偏移， 以实现长杆类电动工具在被用户 握持时因为重力作用翻转使得工作元件 111所在的平面与地面垂直。
参照图 16和图 17 ,长杆类电动工具还包括电线 220和用于支撑电线 220的 绕线装置 210 , 电线 220设置于长杆组件 12内用于实现电连接。 长杆组件 12包 括与工作组件 11构成电连接的连接器 127 , 连接器 127至少适配两种不同的工 作组件 11。 连接器设置于长杆组件一端， 工作组件可插拔地与连接器电连接， 从而使得工作组件可插拔地与长杆组件电连接。 工作组件 11 包括与连接器 127 配合的连接端子， 只要保证不同的工作组件 11中的连接端子均能够适配连接器 127即可。通过可插拔的连接器 127和连接端子实现电连接能够方便用户更换工 作组件 11。 控制器 14和工作组件 11通过电线 220和连接器 12构成电连接， 控 制器 14能够控制工作元件 111的启停以及运转速率。 电线 220设置于长杆组件 12内部， 由于本实施例中长杆组件 12为伸缩杆， 因此电线 220为可伸长的弹簧 线。
参照图 16、 图 18、 图 19A, 绕线装置 210包括线轴 211和环绕线轴 211的 绕线槽 212 , 至少部分电线 220被设置沿着绕线槽 212延伸以缠绕线轴 211， 以 使得电线 220在长杆组件 12内维持螺旋姿态。 绕线槽 212绕着线轴 211螺旋上 升。 绕线装置 210还包括导线槽 213， 导线槽 213和绕线槽 212连通， 导线槽 213向平行于线轴的方向延伸， 并一端敞口设置以接入电线 220。 电线 220通过 导线槽 213可以被引入绕线槽 212。 线轴 211还包括贯穿其内部的穿线部 214， 穿线部 214被设置用于支撑安装电线 220, 穿线部被实施为穿线孔或者穿线槽， 并且至少部分贯穿绕线装置 210。绕线装置 210包括与连接器 127固定连接的连 接结构， 通过连接结构固定安装到连接器 127内， 并维持在长杆组件 12内的延 伸状态， 使得穿线部 214平行于第一直线 101， 防止缠绕绕线装置 210的电线 220可以在长杆组件 12被过度倾斜地设置。 绕线装置 210被长杆组件固定， 电 线被绕线装置 210维持成螺旋状态的弹簧线， 从而电线可以随着长杆组件 12的 伸缩而伸缩。
参照图 19A、 图 19B , 绕线装置 210和连接器 12连接， 连接器 12设置在工 作组件 11 一端， 且具有用于配合工作组件 11连接的连接面， 其上设有与多种 工作组件的连接端子匹配的端口。 连接面暴露在长杆组件外， 连接器至少部分 设置于长杆组件 12内，长杆组件内的电线一端被设置固定连接在连接器的接口。 通常， 电线一端被焊接或压接到连接的接口上， 并由绕线装置固定， 向长杆组 件内部延伸。 连接器包括嵌合槽 128， 嵌合槽 128被靠近绕线装置地放置。 绕线 装置设有与嵌合槽 128配合的嵌合件 215 ,通过将嵌合件 215置入嵌合槽 128使 得绕线装置和连接器嵌合连接。 电线 220—端被连接到连接器 127的接口， 自连接器 127向长杆组件内部 延伸， 并被绕接到与连接器连接的绕线装置 210上。 电线 220被设置从到导线 槽引入到绕线槽， 并沿着绕线槽被固定， 以维持电线的螺旋延伸状态， 部分电 线从导向槽被引入穿线部。 因为电线 220 通常通过焊接或者压接的方式与连接 器 127接口连接， 而长杆组件的伸缩转换会拉动设置其内的电线， 设置在连接 器旁边的绕线装置缠绕固定电线， 并且绕线组件与连接器固定连接， 从而通过 绕线装置维持电线的螺旋姿态， 可以缓冲减小电线与连接器接口处的拉力， 从 而提升电线的安装强度。
在另一种实施方式中， 绕线装置被设置和连接器固定连接， 用于接入电线 并引导电线在长杆组件内的螺旋姿态。
一种实施方式中， 参照图 20 , 电源线被设置缠绕在绕线槽 212, 对应地信 号线 222被设置穿过穿线部 214。电源线 221被设置缠绕绕线槽 212以维持其螺 旋姿态， 且绕线装置 210仅设有一段长度， 电源线 221 自所述绕线装置 210向 第一壳体 16延伸， 并在长杆组件 12内呈现为弹簧线状， 且被长杆组件 12沿着 第一直线 101的径向方向被限位。 电源线 221连接到第一壳体 16上的电源和控 制器。 信号线被设置穿过穿线部 214 , 自穿线部 214延伸出的信号线在弹簧线形 成的中空部内延伸， 从而通过绕线装置 210可以实现避免电源线 221和信号线 相互干扰， 并可以维持电源线 221在长杆组件 12内的弹簧线形态， 并且绕线装 置 210不需要在长杆组件 12内完全延伸，节约材料并且可以有效减轻整机重量。
信号线穿过穿线部 214后， 可以被设置在弹簧线内螺旋延伸。 可选的， 可 以绕线装置的穿线部外周设置第二绕线结构， 用以维持从穿线 214 内伸出的电 线在绕线装置外部的螺旋状态。
参照图 19, 第一连接杆 122和第二连接杆 123的杆壁分别至少一侧设有侧 平面 1201 ,侧平面 1201分布于第一连接杆 122和第二连接杆 123至少部分长度 上， 并可以根据需求使得侧平面 1201在第一连接杆 122和第二连接杆 123上分 别完全地延伸。 侧平面 1201 的设计使得长杆组件 12从而方便用户握持。 第一 连接杆 122和第二连接杆 123的非圆柱设计的杆体， 防止用户握持长杆组件 12 时长按组件产生滑动转动，并且可以有效防止第一连接杆 122和第二连接杆 123 之间的相对转动。
第一连接杆 122和第二连接杆 123 的杆壁分别在其两侧具有相对设置的侧 平面 1201 ,且第一连接杆 122的上的侧平面 1201和第二连接杆 123上的侧平面 1201平行延伸， 从而使得第一连接杆 122和第二连接杆 123被设置为扁管， 方 便用户握持， 并有效防止第一连接杆 122和第二连接杆 123之间的相对转动， 从而使得被设置在长杆组件 12内的信号线和电源线 221可以稳定地被固定， 增 强长杆类电动工具的整体稳定性。
参照图 20， 长杆组件 12还包括设置在第一连接杆 122内的衬套 1202， 且 在第一连接杆 122和第二连接杆 123至少部分重叠时， 衬套 1202位于第一连接 杆 122和第二连接杆 123之间。 衬套 1202固定连接第二连接杆 123， 第二连接 杆 123相对设置于第一连接杆 122内部， 衬套 1202被设置套接在至少部分第二 连接杆 123上， 使得在第一连接杆 122和第二连接杆 123至少部分重叠时， 衬 套 1202位于第一连接杆 122和第二连接杆 123之间， 从而可以有效防止第二连 接杆 123相对第一连接杆 122转动， 并且衬套 1202不必在第二连接杆 123和第 一连接杆 122 内完全地铺设， 从而有效地节省材料， 并且降低整机重量。 衬套 1202的制作材料可以选为塑料、 橡胶材料等。 衬套 1202可以被设置管体套接在 第一连接杆 122之外， 并设置在第二连接杆 123之内， 防止第一连接杆 122和 第二连接杆 123相对转动。 衬套 1202还可以根据第一连接杆 122和第二连接杆 123的尺寸被设置为其它形态， 如螺旋状、 条状， 在此不造成限制。
在本申请的第二实施方式中， 参照图 21和图 22, 长杆类电动工具包括第一 壳体 16a和马达壳体 112a, 控制器被设置容纳于第一壳体 16a, 马达 19a被马达 壳体 112a支撑， 通过长杆组件 12a连接第一壳体 16a和马达壳体 112a。 马达壳 体 112a包括进风部 310a， 进风部 310a设有多个进风孔 311a。
参照图 22和图 23， 长杆类电动工具还包括风扇 320a和导风罩 330a， 导风 罩 330a和马达壳体 112a内部连通， 风扇 320a连接于马达 19a并伸出马达壳体 112a, 导风罩 330a用于容纳风扇 320a, 导风罩 330a连接于马达壳体 112a并包 括出风部 331a, 出风部 331a和进风孔 311a之间形成用于引导散热气流的风道， 风扇 320a不设置于马达壳体 112a内， 从而可以有效降低马达壳体 112a的整体 尺寸， 以降低马达壳体 112a的重量， 方便用户操作握持。
进风部 310a包括第一进风部 313a, 在第一进风部 313a和出风部 331a之间 形成第一进风道。 风道末端形成出风风道， 出风风道与风扇 320a的转动平面平 行。 在长杆类电动工具运行时， 风扇 320a运行产生的散热气流从进风部 310a 流入马达壳体 112a内部， 散热流经马达 19a通过对流传热带走马达 19a中的至 少部分热量， 并流入导风罩 330a, 通过风道末端向出风部 331a排出。 风道在其 末端在朝向出风部 331a的方向上风道界面逐渐增大，出风部 331a包括垂直或者 近似垂直风扇 320a旋转平面的吹风口，使得导风罩 330a呈现为蜗轮状壳体，从 而可以加速风道中的散热气流朝向出风部 331a排出，排风效率高，散热效果好。
在另一种实施方式中， 进风部 310a 包括第一进风部 313a 和第二进风部 314a, 在第二进风部 314a和出风部 331a之间形成第二进风道， 第一进风道和第 二进风道在马达壳体 112a内汇合，并且风扇 320a产生的气流分别从第一进风道 和第二进风到进入马达壳体 112a并回合， 由出风风道持出， 且出风风道与风扇 320a的转动平面平行， 以通过导风罩 330a提升马达壳体 112a的整体散热效率。
第一进风部 313a或第一进风部 313a和第二进风部 314a的进风孔 311 a的直 径大于或等于 1 mm并小于或等于 5mm ,从而防止长杆类电动工具作业时产生的 尘屑、木屑进入马达壳体 112a内， 影响马达壳体 112a内的马达 19a或者其他元 件的散热和正常运行， 并且进风孔 311a的直径大于 1mm， 从而保证风道的进风 量可以满足散热需求。
如图 24至图 26所示， 在本申请的第三实施例的长杆类电动工具中， 开关 271为电流开关 271， 开关 271分别与电源 23和控制器 24构成电连接， 电流从 电源 23先后经过开关 271、 控制器 24以及马达。 可选的， 把手 27位于电源 23 和第一壳体 26之间， 也即是说， 开关 271设置于电源 23和控制器 24之间。 如 图 10 , 开关 271相对于控制器 24的位置有多种。 图 11中， 控制器 24基本位于 开关 271的下方， 且开关 271和控制器 24均容纳至把手 27围绕形成的容纳空 间中， 控制器 24也可以位于开关 271的下方， 电源线穿过巴手 27以及长杆组 件 22。 如图 12所示， 控制器 24位于开关 271的前方且与开关 271分别设置于 两个不同的壳体中， 此时电源线穿过、 以及第一壳体 26以及长杆组件 22。 以上 猫述仅为第三实施例的长杆类电动工具与第一实施例的不同之处， 其余与第一 实施例的长杆类电动工具相同的结构均可用于本实施例中。
在本申请的第四实施方式中， 参照图 27， 长杆类电动工具可以被设置可调 节其工作组件 l ib的角度， 所述工作组件 lib相对第一直线 101b可旋转。
为了实现长杆类电动工具的可调节功能， 参照图 27到图 30 , 长杆类电动工 具还设有调节组件 400b， 调节组件 400b包括适配杆 115b和第一调节件 410b， 适配杆 115b适配连接于长杆组件 12b,适配杆 115b至少包括第一适配杆 1151b, 第一适配杆 1151b至少部分沿着第一直线 101b延伸， 第一调节件 410b设置于 第一适配杆 1151b上并可相对第一适配杆 1151b滑动， 用户通过操作第一调节 件 410b使得第一调节件 410b相对第一适配杆 1151b滑动， 以使得工作组件 l ib 可旋转。
调节组件 400b还包括第一锁定机构 420b , 第一锁定机构 420b连接于第一 调节件 41 Ob， 第一锁定机构 420b至少可被第一调节件 41 Ob切换到锁定状态和 解锁状态， 在锁定状态时， 调节组件 400b通过第一锁定机构 420b止转连接第 一适配杆 1151b和工作组件 lib。 在解锁状态下， 工作组件 lib相对第一适配杆 1151b可旋转， 工作元件 111b至少部分在第一平面 102b上延伸， 以使得第一平 面 102b可以绕第一直线 101b转动。
适配杆 115b还包括第二适配杆 115b, 第二适配杆 115b套接于第一适配杆 1151b并连接工作组件 lib。 第一锁定机构 420b还包括与第二适配杆 115b配合 的第一锁定件 421b， 第一锁定件 421b和第二适配杆 115b固定连接， 第一锁定 件 421b在锁定状态下限制工作组件 lib相对适配杆 115b转动。第一调节件 410b 与第一适配杆 1151b止转连接， 第一调节件 410b还包括止转销 411b, 第一鎖定 件 421b包括至少两个止转孔 422b, 止转销 411b和止转孔 422b相对设置。 在锁 定状态下，止转销 411b置入止转孔 422b。从而用户仅需要调节第一调节件 410b 滑动， 从而使得第一销定机构 420b解锁或锁定， 锁定状态下， 适配杆 115b和 工作组件 lib 的工作头止转连接， 从而用户通过手握握持部可以使用长杆类电 动工具作业。在解锁状态下，第一调节件 41 Ob带动止转销 41 lb脱离止转孔 422b, 从而使得工作组件 lib相对第一调节杆解锁， 并可相对转动。 为了方便用户使 用， 通常止转孔 422b设有多个， 均勾地分布第一锁定件 421b上， 从而用户可 以根据需求调节工作组件 l ib相对长杆组件 12b的旋转角度， 实现不同侧切位 置， 以满足对不同切割对象的不同切割角度的需求。
第一调节件 410b上安装有弹性装置 412b, 在用户未对第一调节杆操作时， 弹性装置 412b施加作用力到第一调节件上， 使得止转销 411b置入止转孔 422b 内， 从而使得第一锁定机构 420b 自动地回到锁定状态。 通过第一调节件 410b， 用户可以相对调节工作元件 111b的所在的第一平面 102b的方向， 使得第一平 面 102b可以绕中心线或者第一直线 101b旋转， 从而实现长杆类电动工具的侧 切调节， 方便用户使用长杆类电动工具进行不同角度和方向的操作， 且角度调 节方式简单可靠， 提升了用户的操作效率。 在另一种实施方式中， 第一调节件 410b还包括止转凸起， 第一锁定件 421b包括至少两个止转凹槽， 通过控制第一 调节件 410b的位移切换止转凸起在对应止转凹槽内的位置， 从而实现工作组件 lib的侧切角度调节和固定。
在一种实施方式中， 第一调节件 410b为环形件， 并且第一调节件 410b套 接于第一适配杆 1151b, 用户通过拨动环形的第一调节件 410b相对第一适配杆 1151b移动， 从而解锁或锁定第一锁定机构 420b, 方便用户使用。
参照图 28到图 31，长杆类电动工具还包括转动轴 430b和第二调节件 440b， 转动轴 430b连接工作组件 l ib,转动轴 430b的轴线与第一平面 102b平行设置， 第二调节件 440b设置于第二适配杆 115b上并可相对第二适配杆 115b滑动。 长 杆类电动工具还包括第二锁定机构 450b, 第二锁定机构 450b 可被第二调节件 440b锁定和解锁， 在第二锁定机构 450b锁定时， 调节组件 400b固定连接第二 适配杆 115b和工作组件 l ib; 在解锁时， 工作组件 lib相对第二适配杆 115b可 绕转动轴 430b旋转。
参照图 31 , 第二锁定机构 450b包括定位销 451b和第二锁定件 452b, 定位 销 451b连接于第二调节件 410b, 第二锁定件 452b套接于转动轴 430b外， 并至 少具有两个销孔， 定位销 451 b插入销孔以使得锁定机构维持在锁定， 通过第二 调节件 410b控制定位销 451b脱离销孔， 以使得工作组件 l ib相对适配杆 115b 可相对转动轴 430b 旋转。 第二锁定机构 450b 还包括活动件 453b 和弹性件 1252b, , 活动件 453b连接第二调节件 410b和定位销 451b。 弹性件 1252b设置 在定位销 451b和活动件 453b之间， 提供使得锁定机构维持锁定的保持力。
第二适配杆还包括与工作头连接的延展部， 延展部相对第一直线 101b倾斜 地延伸， 转动轴 430b—端连接工作头， 一端连接延展部， 从而实现工作头相对 调节组件的可转动连接。 活动件 453b—端设有转轴， 且活动件 435b—定角度 地倾斜， 使得活动件 435b—端被第二调节件带动滑动时， 通过转轴旋转使得与 活动件 435b连接的定位销脱离或插入销孔内。 延展部的倾斜延伸使得工作头低 于长杆组件， 使得工作组件的重心下移， 可选的， 本实施例中的工作组件的重 心与延展部轴心的距离大于或等于 8mm, 并且小于或等于 15mm。 重心与转动 轴轴线水平距离大于或等于 35mm, 并小于或等于 50mm, 重心与工作元件的下 端面距离为 20-30mm, 工作组件的结构设置可以提升用户操作使用感。
所述销孔还包括用于调节所述工作组件 l ib作业位置的第一销孔 454b， 以 及用于维持所述工作组件 lib在收纳位置的第二销孔 455b， 用户通过将定位销 451b置入不同第一类销孔中， 以调节工作组件 l ib相对转动轴的旋转角度， 调 节工作头的中心线和第一轴线的夹角， 从而实现不同的工作位置和角度， 方便 用户使用。 且通过第二调节件 440b的调节方式简单可靠， 提升了用户的使用感 和工作效率。
用户通过第二调节件 440b并旋转工作头， 使得在定位销 451b位于所述第 二类销孔时， 工作元件 111b指向所述握持部， 并通过第二调节件 440b使得第 二锁定机构 450b锁定， 使得工作头维持在对应的旋转位置， 且第一平面 102b 和所述第一直线 101b的夹角小于 20度。 此时工作组件 lib处于收纳位置， 方 便用户储存和携带长杆类电动工具。
参照图 32， 工作组件 l ib还包括与马达连接的安全开关 460， 第二适配杆 115b包括触发装置， 在定位销 451b位于第一销孔 454b内时， 触发装置触发安 全开关 460, 在定位销 451b位于第二销孔 455b 内时， 触发装置脱离安全开关 460 , 安全开关 460断开。 从而在工作组件 lib被设置于储存位置时， 安全开关 460断开，工作组件 lib不能被触发开启，用户在携带或储存长杆类电动工具时， 工作组件 lib 不会因为用户误触发扳机而开始工作， 从而对用户或者当前环境 物品产生误伤或者损坏。 提升了工作组件 lib 的使用安全系数， 且无需用户再 单独按动安全开关 460关闭整机的运行， 方便用户操作。 在一种实施方式中， 第一调节件 410b和第二调节件 440b为环形件， 并且 第一调节件 410b套接于第一适配杆 1151b，第二调节件 440b套接于第二适配杆 115b。 用户通过拨动环形的第一调节件 410b相对第一适配杆 1151b移动， 从而 解锁或锁定第一锁定机构 420b o用户通过拨动环形的第二调节件 440b相对第二 适配杆 115b移动， 从而解锁或锁定第二锁定机构 450b, 方便用户使用。 用户在 使用长杆类电动工具本身即是握持支撑， 而环形的第一调节件 410b和第二调节 件 440b使得用户在需要调节长杆类电动工具的工作组件 lib的侧向角度或工作 组件 l ib 的旋转角度时， 在握持移动环形件的第一调节件 410b 和第二调节件 440b的同时， 也可以通过握持第一调节件 410b或者第二调节件 440b支撑长杆 类电动工具， 方便用户对工作组件 l ib 的角度或旋转调节操作， 并且使得工作 组件 l ib被操作切换角度或旋转时， 长杆类电动工具可以稳定地被握持。 第一 调节件 410b和第二调节件 440b的环形结构， 提升了第一调节件 410b和第二调 节件 440b的强度， 从而增加其总体的使用寿命。 在一种实施方式中， 触发装置 被设置为半环状凸起， 在定位销被锁定在第二锁定结构中的第一销孔时， 触发 装置被带动转动触发安全开关， 长杆类电动工具运行。 定位销被锁定在第二锁 定结构中的第二销孔时， 触发装置被带动转动离开安全开关， 长杆类电动工具 断电停止运行。
在本实施例中， 工作组件 lib为修枝机组件 122， 对应的工作元件 111b为 修枝剪 1112b。 可选的， 工作组件 lib也可以是链锯组件 113或吸尘器组件。
在本申请的另一种实施方式中， 调节组件仅设有第一调节件、 适配杆和第 一锁定机构， 通过第一调节件、 适配杆和第一锁定机构的配合实现工作组件的 侧切旋转调节， 即通过第一调节件、 适配杆和第一锁定机构使得工作组件相对 第一直线可旋转， 并可固定在其旋转位置供用户操作使用。
在本申请的另一种实施方式中， 调节组件仅设有第二调节件、 适配杆、 转 动轴以及第二锁定机构， 通过第二调节件、 适配杆、 转动轴以及第二锁定机构 的配合实现工作组件的绕转动轴旋转调节， 即通过第一调节件、 适配杆和第一 锁定机构使得工作组件相对转动轴的轴线可旋转， 并可被固定在其旋转位置供 用户操作使用。

Claims

权 利 要 求 书
1.一种长杆类电动工具， 包括：
工作组件， 包括用于输出作业的工作元件和驱动所述工作元件的马达； 握持部， 所述握持部供用户握持；
电源， 为所述马达供电；
控制器， 用于控制所述马达转动， 所述控制器分别与所述电源和所述马达 构成电连接；
第一壳体， 所述控制器被设置容纳于所述第一壳体；
马达壳体， 所述马达被所述马达壳体支撑， 所述马达壳体包括进风部， 所 述进风部设有多个进风孔；
长杆组件， 连接所述握持部和所述马达壳体；
所述长杆类电动工具还包括：
风扇， 所述风扇连接于所述马达并伸出所述马达壳体；
导风罩， 所述导风罩连接于所述马达壳体， 用于容纳所述风扇并包括： 出风部， 所述出风部和所述进风孔之间形成用于引导散热气流的风道， 所 述风道在其末端在朝向所述出风部的方向上风道截面逐渐增大。
2.如权利要求 1所述的长杆类电动工具， 其中： 所述进风孔的直径大于或等 于 1 mm并小于或等于 5mm„
3.如权利要求 2所述的长杆类电动工具，其中：所述风道末端形成出风风道， 所述出风风道与所述风扇的转动平面平行。
4.如权利要求 1所述的长杆类电动工具， 其中： 所述长杆类电动工具包括散 热件， 所述散热件安装至所述控制器， 所述散热件与所述控制器构成直接接触 或者通过导热件间接接触； 所述散热件连接至所述长杆组件， 与所述长杆组件 成直接接触或者通过导热件间接接触。
5.如权利要求 4所述的长杆类电动工具， 其中： 所述散热件形成有贴合至少 部分所述长杆组件表面的接触面， 所述接触面为一个连续曲面或者多个非连续 面。
6.如权利要求 4所述的长杆类电动工具， 其中： 所述长杆组件沿径向形成有 向外凸起的凸筋， 所述凸筋沿所述长杆组件的轴向或者周向延伸； 所述散热件 形成有与所述凸筋配合的凹槽， 沿周向或者轴向限定所述长杆组件相对于所述 散热件的位置。
7.根据权利要求 4所述的长杆类电动工具， 其中：
所述控制器包括电路板， 所述电路板包括基板， 所述散热件连接至所述基 板；
所述电路板还包括安装至所述基板的电子元件， 所述基板具有一个用于安 装所述电子元件的安装面， 所述散热件连接至与所述安装面相对的另一面； 所 述基板的材质为导热金属。
8.一种长杆类电动工具， 包括：
工作组件， 包括用于输出作业的工作元件和驱动所述工作元件的马达； 握持部， 所述握持部供用户握持；
电源， 为所述马达供电；
控制器， 用于控制所述马达转动， 所述控制器分别与所述电源和所述马达 构成电连接；
马达壳体， 所述马达被所述马达壳体支撑， 所述马达壳体包括进风部， 所 述进风部设有多个进风孔；
长杆组件， 连接所述握持部和所述马达壳体；
所述长杆类电动工具还包括：
风扇；
导风罩， 用于容纳所述风扇并包括：
出风部， 所述出风部和所述进风孔之间形成用于引导散热气流的风道， 所 述风道在其末端在朝向所述出风部的方向上风道截面逐渐增大。
9.如权利要求 8所述的长杆类电动工具， 其中： 所述风扇连接于所述马达并 伸出所述马达壳体， 所述导风罩连接于所述马达壳体。
10.如权利要求 8所述的长杆类电动工具， 其中： 所述长杆类电动工具还包 括连接器， 所述连接器设置于所述长杆组件一端， 所述工作组件可插拔地与所 述连接器电连接； 电线， 所述电线设置于所述长杆组件内用于实现电连接； 所 述长杆类电动工具还包括用于支撑所述电线的绕线装置， 所述绕线装置和所述 连接器连接； 所述绕线装置包括线轴和环绕所述线轴的绕线槽， 至少部分所述 电线被设置沿着所述绕线槽延伸以缠绕所述线轴， 以使得所述电线在所述长杆 组件内维持螺旋姿态。
11.如权利要求 10所述的长杆类电动工具， 其中： 所述连接器包括嵌合槽， 所述绕线装置一端设有嵌合件， 所述嵌合件被设置插入所述嵌合槽使得所述绕 线装置被所述连接器固定。
12.如权利要求 8所述的长杆类电动工具， 其中： 所述长杆类电动工具还包 括开关， 安装到所述握持部， 用于控制所述马达运行； 所述长杆组件连接于所 述握持部并至少包括第一连接杆和第二连接杆， 所述第二连接杆和所述第一连 接杆构成可伸缩连接， 所述第一连接杆和所述第二连接杆相对伸缩使得所述长 杆组件具有至少第一长度和第二长度； 所述长杆组件包括安装装置， 用于可拆 卸地安装所述工作组件， 所述工作组件至少被实施为至少两种工作组件， 其中 至少一种所述工作组件一端设有延长杆， 所述延长杆连接到所述安装装置以安 装所述工作组件， 且使得所述长杆类电动工具的最大长度大于或等于 3.5m。
13.如权利要求 12所述的长杆类电动工具， 其中： 所述工作组件的一种是修 枝机组件， 所述修枝机组件包括修枝机工作头， 所述修枝机工作头连接到所述 安装装置并且所述长杆组件处于最长长度时， 所述工作元件末端到所述开关的 距离小于或等于 3.5m。
14.如权利要求 13所述的长杆类电动工具， 其中： 所述安装装置包括： 操作 装置， 所述操作装置安装于所述第一连接杆； 连接部， 所述连接部设置于所述 工作组件， 所述操作装置被操作可拆卸地连接于所述连接部。
15.如权利要求 14所述的长杆类电动工具， 其中： 所述连接部为设置在所述 工作组件的安装孔， 所述操作装置包括： 适配部， 与所述安装孔连接； 弹性件， 安装于所述适配部； 所述适配部可被所述弹性件维持在所述安装孔内， 以固定 连接所述第一连接杆和所述工作组件。
16.如权利要求 8所述的长杆类电动工具， 其中： 所述长杆组件包括穿过所 述长杆组件轴心的第一直线， 所述工作元件具有沿着其中心延伸的中心线， 在 工作组件安装到长杆组件后， 所述中心线偏离所述第一直线。
17.如权利要求 16所述的长杆类电动工具， 其中： 所述中心线与所述第一直 线的直线距离大于或等于 5mm并小于或等于 10mm。
18.如权利要求 8所述的长杆类电动工具， 其中： 所述长杆组件连接于所述 握持部并包括第一连接杆和第二连接杆， 所述第二连接杆和所述第一连接杆构 成可伸缩连接， 所述第一连接杆和所述第二连接杆被设置为扁管。
19.如权利要求 18所述的长杆类电动工具， 其中： 所述连接杆还包括设置在 所述第一连接杆内的衬套， 且在所述第一连接杆和所述第二连接杆至少部分重 叠时， 所述衬套位于所述第一连接杆和所述第二连接杆之间。
20.如权利要求 8所述的长杆类电动工具， 其中： 所述工作元件至少部分沿 着第一平面延伸， 所述长杆类电动工具还包括调节组件， 所述调节组件包括： 适配杆， 所述适配杆适配连接所述长杆组件和所述工作组件， 所述适配杆 至少包括第一适配杆， 所述第一适配杆至少部分沿着第一直线延伸；
第一调节件， 所述第一调节件设置于所述第一适配杆上并可相对所述第一 适配杆滑动；
第一锁定机构， 连接于所述第一调节件， 所述第一锁定机构至少可被所述 第 调节件切换到锁定状态和解销状态， 在所述锁定状态时， 所述调节组件通 过所述第一锁定机构止转连接所述第一适配杆和所述工作组件； 在所述解锁状 态下， 所述工作组件相对所述第一适配杆可旋转， 以使得所述第一平面可以绕 所述第一直线转动。
21.如权利要求 20所述的长杆类电动工具， 其中：
所述适配杆还包括： 第二适配杆， 所述第二适配杆套接于所述第一适配杆 并连接所述工作组件； 所述第一锁定机构还包括： 第一锁定件， 所述第一锁定 件和所述第二适配杆固定连接， 所述第一锁定件在锁定状态下限制所述工作组 件相对所述适配杆转动。
22.如权利要求 21所述的长杆类电动工具， 其中： 所述第一调节件与所述第 一适配杆止转连接， 所述第一调节件还包括止转销， 所述第一锁定件包括至少 两个止转孔， 在所述领定状态下， 所述止转销置入所述止转孔。
23.如权利要求 20所述的长杆类电动工具， 其中： 所述长杆类电动工具还包 括： 转动轴， 连接所述工作组件， 所述转动轴的轴线与所述第一平面平行设置; 第二调节件， 所述第二调节件设置于所述第二适配杆上并可相对所述第二适配 杆滑动；
第二锁定机构， 所述第二锁定机构可被所述第二调节件锁定和解锁， 在第 二锁定机构锁定时， 所述调节组件固定连接所述第二适配杆和所述工作组件； 在解锁时， 所述工作组件相对所述第二适配杆可绕所述转动轴旋转。
24.如权利要求 23所述的长杆类电动工具， 其中：
所述第二锁定机构包括：
定位销， 所述定位销连接于所述第二调节件；
第二锁定件， 所述第二锁定件套接于所述转动轴外， 并至少具有两个销孔， 所述定位销插入所述销孔以使得所述锁定机构维持锁定， 通过所述第一调节件 控制所述定位销脱离所述销孔， 以使得所述工作组件相对所述适配杆可相对所 述转动轴旋转。
25.如权利要求 24所述的长杆类电动工具， 其中： 所述第二锁定机构还包括：
活动件， 所述活动件连接所述第二调节件和所述定位销；
弹性件， 所述弹性件设置在所述定位销和所述活动件之间， 提供使得所述 锁定机构维持锁定的保持力。
26.如权利要求 24所述的长杆类电动工具， 其中：
所述销孔还包括用于调节所述工作组件作业位置的第一销孔， 以及用于维 持所述工作组件在收纳位置的第二销孔， 在所述定位销位于所述第二销孔时， 所述工作元件指向所述握持部， 且所述第一平面和所述第一直线的夹角小于 20
J^ o
27.如权利要求 26所述的长杆类电动工具， 其中：
所述工作组件还包括与马达连接的开关， 所述第二适配杆包括触发装置， 在所述定位销位于所述第一销孔内时， 所述触发装置触发所述开关， 在所述定 位销位于所述第二销孔内时， 所述触发装置脱离所述开关， 所述开关断开。
28.如权利要求 23所述的长杆类电动工具， 其中：
所述第一调节件和所述第二调节件为环形件， 并且所述第一调节件套接于 所述第一适配杆， 所述第二调节件套接于所述第二适配杆。
29.如权利要求 23所述的长杆类电动工具， 其中：
所述工作组件的重心与所述转动轴的轴线水平距离大于或等于 35mm,并小 于或等于 50mm,所述工作组件的重心与所述工作元件的下端面距离为大于或等 于 20mm并小于或等于 30mm。
30.如权利要求 12所述的长杆类电动工具， 其中： 所述第一连接杆和所述第 二连接杆的杆壁分别在其两侧具有相对设置的侧平面。
31.如权利要求 8所述的长杆类电动工具， 其中：
所述长杆类电动工具还包括:
握持部， 形成有供用户握持的把手；
开关， 用于控制所述马达， 所述开关电连接至所述控制器且安装至所述把 手；
第一壳体， 所述第一壳体形成有用于容纳所述控制器的容纳空间； 所述工 作组件包括第二壳体， 所述马达容纳至所述第二壳体； 所述把手靠近所述第一 壳体设置。
32.如权利要求 31所述的长杆类电动工具， 其中： 所述第一壳体相对于所述 长杆组件更靠近所述长杆组件连接所述电源的一端。
PCT/CN2020/077008 2019-02-27 2020-02-27 长杆类电动工具 WO2020173487A1 (zh)

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