WO2024067340A1 - 角钻及角向电动工具 - Google Patents

角钻及角向电动工具 Download PDF

Info

Publication number
WO2024067340A1
WO2024067340A1 PCT/CN2023/120321 CN2023120321W WO2024067340A1 WO 2024067340 A1 WO2024067340 A1 WO 2024067340A1 CN 2023120321 W CN2023120321 W CN 2023120321W WO 2024067340 A1 WO2024067340 A1 WO 2024067340A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
housing
angle drill
output
axis
Prior art date
Application number
PCT/CN2023/120321
Other languages
English (en)
French (fr)
Inventor
陆伟
王杰
Original Assignee
南京泉峰科技有限公司
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
Priority claimed from CN202211185938.6A external-priority patent/CN117817630A/zh
Priority claimed from CN202222581562.2U external-priority patent/CN218638612U/zh
Priority claimed from CN202211196086.0A external-priority patent/CN117817631A/zh
Priority claimed from CN202211185917.4A external-priority patent/CN117817629A/zh
Priority claimed from CN202211185918.9A external-priority patent/CN117817015A/zh
Application filed by 南京泉峰科技有限公司 filed Critical 南京泉峰科技有限公司
Publication of WO2024067340A1 publication Critical patent/WO2024067340A1/zh

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B45/00Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/02Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D16/00Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F1/00Combination or multi-purpose hand tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Definitions

  • the present application relates to an electric tool, for example, to an angle drill and an angle electric tool.
  • Angle power tools in the related art are generally used under heavy load conditions. Therefore, the output torque requirements for the product are relatively high. In the process of increasing the output torque, it is easy to increase the weight of the product. The comfort of the product is sacrificed in exchange for higher working performance.
  • One object of the present application is to solve or at least alleviate part or all of the above problems.
  • the present application provides an angle drill that is more ergonomic and more comfortable to use.
  • an embodiment of the present application provides an angle drill, comprising: a shell; a motor, at least partially disposed in the shell, the motor comprising a motor shaft rotating around a motor axis; a DC power supply, used to power the motor, the DC power supply being detachably connected to the shell; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; a transmission mechanism, used to connect the motor and the output mechanism; when the output torque of the angle drill on the workpiece is greater than or equal to 10 N ⁇ m, the ratio of the output power of the angle drill to the weight of the angle drill is greater than or equal to 220 W/kg.
  • the ratio of the output power of the angle drill to the weight of the angle drill is greater than or equal to 250 W/kg.
  • the output power of the angle drill is greater than or equal to 1250 W.
  • the output torque of the angle drill on the workpiece is greater than or equal to 10 N ⁇ m and less than or equal to 20 When the power is 200 N ⁇ m, the output power of the angle drill is greater than or equal to 1500 W.
  • the DC power source includes at least one battery pack.
  • the weight of the angle drill is less than or equal to 6.0 kg.
  • the transmission mechanism includes a transmission box housing and a direction-changing assembly; the direction-changing assembly is transmission-connected to the motor shaft and the output shaft, and the direction-changing assembly is at least partially located in the transmission box housing; the transmission box housing is located inside the housing; wherein the transmission box housing includes at least two materials of different densities.
  • the average density of the transmission case housing is less than or equal to 2.5 g/cm 3 .
  • the transmission case housing includes a main body portion with a first density and a support portion with a second density, the main body portion being used to support internal components of the transmission case housing, and the first density is greater than the second density.
  • At least a portion of the main body is made of a metal material, and the first density is less than or equal to 2.5 g/cm 3 and greater than or equal to 1.5 g/cm 3 .
  • the transmission case housing is provided with a weight reduction structure.
  • it also includes: a fan driven by the motor shaft; a control mechanism for controlling the motor; the shell, including: a first air inlet, allowing air flow to enter the shell when the fan rotates; a second air inlet, allowing air flow to enter the shell when the fan rotates; an air outlet, allowing air flow to be discharged from the shell when the fan rotates; wherein the second air inlet is arranged between the first air inlet and the air outlet; when the fan rotates, a first air flow entering from the first air inlet and discharged from the air outlet flows through the control mechanism and the motor in sequence; a second air flow entering from the second air inlet and discharged from the air outlet flows through at least a portion of the transmission mechanism.
  • the second air inlet is arranged closer to the fan relative to the first air inlet, and the air outlet is arranged at the rear of the transmission mechanism.
  • the housing includes an intermediate housing disposed between the motor and the output mechanism, the intermediate housing includes a first heat dissipation portion made of metal, and the air outlet is at least partially disposed in the first heat dissipation portion.
  • the shell includes a gripping portion, the gripping portion is ring-shaped, a receiving space is formed inside the gripping portion, and the first air inlet is arranged at the lower part of the gripping portion.
  • the motor is externally sleeved with a barrel, and the barrel is provided with heat dissipation holes at the front and rear ends respectively, so that the first airflow enters the barrel to dissipate heat for the motor.
  • an embodiment of the present application provides an angle drill, which includes: a shell; a motor, at least partially arranged in the shell, the motor including a motor shaft rotating around the motor axis; a DC power supply, used to power the motor, the DC power supply is detachably connected to the shell; an output mechanism, including an output shaft rotating about a first axis, the output shaft is driven by the motor and the first axis intersects with the motor axis; a transmission mechanism, used to connect the motor and the output mechanism; when the output torque of the angle drill on the workpiece is less than or equal to 15N ⁇ m, the output power of the angle drill is greater than or equal to 1500W.
  • an embodiment of the present application provides an angle drill, comprising: a shell; a motor, at least partially disposed in the shell, the motor comprising a motor shaft rotating around a motor axis; a DC power supply, used to power the motor, the DC power supply being detachably connected to the shell; a nominal voltage of the DC power supply being greater than or equal to 18V; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; a transmission mechanism, used to connect the motor and the output mechanism; a ratio of the output power of the angle drill to the weight of the angle drill being greater than or equal to 215W/kg.
  • the weight of the angle drill is less than or equal to 6.0 kg.
  • the output torque of the angle drill on the workpiece is greater than or equal to 70 N ⁇ m.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; a fan, driven by the motor shaft; an output mechanism, comprising an output shaft rotating around a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; a transmission mechanism for connecting the motor and the output mechanism; a control mechanism for controlling the motor; a shell, the length of which extends along the motor axis; the shell comprising: a first air inlet, allowing air flow to enter the shell when the fan rotates; a second air inlet, allowing air flow to enter the shell when the fan rotates; an air outlet, allowing air flow to be discharged from the shell when the fan rotates; wherein the second air inlet is arranged between the first air inlet and the air outlet; when the fan rotates, a first air flow entering from the first air inlet and discharged from the air outlet flows through the control mechanism and the motor in
  • the second air inlet is arranged closer to the fan than the first air inlet.
  • the air outlet is arranged at the rear of the transmission mechanism.
  • the housing includes an intermediate housing disposed between the motor and the output mechanism, the intermediate housing includes a first heat dissipation portion made of metal, and the air outlet is at least partially disposed in the first heat dissipation portion.
  • the shell includes a gripping portion, the gripping portion is ring-shaped, and a receiving space is formed inside the gripping portion.
  • the first air inlet is disposed at a lower portion of the grip portion.
  • the gripping portion is at least partially disposed behind the motor, and the control mechanism is disposed behind the motor.
  • the motor is externally sleeved with a barrel, and the barrel is provided with heat dissipation holes at the front and rear ends respectively, so that the first airflow enters the barrel to dissipate heat for the motor.
  • the second air inlet is disposed outside the barrel.
  • the fan is disposed between the motor and the transmission mechanism.
  • the transmission mechanism includes a transmission box housing and a direction-changing assembly, wherein the direction-changing assembly is at least partially located in the transmission box housing; the transmission box housing is located inside the housing; and the intermediate housing is formed or connected to the transmission box housing.
  • a heat insulation plate is provided between the transmission mechanism and the air outlet, the heat insulation plate extends in a direction perpendicular to the motor axis, and an air flow channel for air flow to pass through is provided between the heat insulation plate and the air outlet.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; a fan driven by the motor shaft; an output mechanism, comprising an output shaft rotating around a first axis, the output shaft being driven by the motor and the first axis intersecting the motor axis; a transmission mechanism for connecting the motor and the output mechanism; a control mechanism for controlling the motor; a housing, the length of which extends along the motor axis; the housing, comprising: a first air inlet, allowing air flow to enter the housing when the fan rotates; an air outlet, allowing the air flow to be discharged from the housing when the fan rotates; an intermediate housing, arranged between the motor and the output mechanism, the intermediate housing comprising a first heat dissipation portion made of a heat dissipation material, the air outlet being at least partially arranged in the first heat dissipation portion; when the fan rotates, the air flow entering from the first air in
  • the first heat dissipation portion is made of metal.
  • a second air inlet is further included to allow air flow to enter the housing when the fan rotates.
  • the second air inlet is disposed between the first air inlet and the air outlet; a second air flow entering through the second air inlet and discharged through the air outlet flows through at least a portion of the transmission mechanism.
  • the fan is disposed between the motor and the transmission mechanism.
  • the transmission mechanism includes a transmission box housing and a direction-changing assembly, wherein the direction-changing assembly is at least partially located in the transmission box housing; the transmission box housing is located inside the housing; and the intermediate housing is formed or connected to the transmission box housing.
  • the first heat dissipation portion forms the transmission case housing.
  • a heat insulation board is arranged between the air outlets of the transmission box housing, the heat insulation board extends in a direction perpendicular to the motor axis, and an air flow channel for air flow to pass through is arranged between the heat insulation board and the air outlet.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating around a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; a transmission mechanism for connecting the motor and the output mechanism; a housing, comprising a first housing supporting the output mechanism and a second housing supporting the transmission mechanism, the first housing being formed on or connected to the second housing; and further comprising: a front handle mechanism connected to the housing, the front handle mechanism comprising: a first gripping assembly and an installation assembly, at least part of the first gripping assembly being located above the output shaft; the transmission mechanism comprising a direction changing assembly, the direction changing assembly comprising: a bevel gear shaft connected to the motor shaft, a first bevel gear rotating around the bevel gear shaft as a rotating axis, and a second bevel gear meshing with the first bevel gear and connected to the output shaft,
  • the first shell includes a first end face, the first end face is located below the first grip assembly and in front of the mounting assembly, and the angle between the first end face or a section of the first end face and the plane where the motor axis is located is greater than or equal to 30°.
  • an angle between the first end face or a tangent plane of the first end face and a plane where the motor axis is located is greater than or equal to 30° and less than or equal to 45°.
  • At least one of the first shell and the second shell is provided with a first mounting surface, the first mounting surface is located below the upper surface of the first shell, and the mounting assembly is detachably mounted on the first mounting surface.
  • it also includes a clamping mechanism, which is connected to the output mechanism; the clamping mechanism is used to hold the execution component that performs the function of the power tool; the clamping mechanism includes a chuck portion connected to the output mechanism and a clamping claw for clamping; the distance from the upper surface of the first gripping component to the lower surface of the chuck portion is less than or equal to 180 mm.
  • the transmission mechanism further includes a speed change assembly, the speed change assembly includes a planetary gear set, The star gear set connects the motor and the bevel gear shaft.
  • the first gripping assembly includes a first supporting portion for supporting a palm and a second supporting portion for receiving fingers, and the second supporting portion and the first end surface form a receiving space for receiving the fingers.
  • the meshing tooth surface of the second bevel gear faces upward.
  • the second shell is at least partially located behind the first grip assembly, and the lower surface of the first grip assembly and the upper surface of the second shell are substantially located on the same horizontal plane.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating around a first axis, the output shaft is driven by the motor and the first axis intersects with the motor axis; a transmission mechanism, used to connect the motor and the output mechanism; a housing, comprising a first housing supporting the output mechanism and a second housing supporting the transmission mechanism, the first housing being formed or connected to the second housing; and also comprising: a front handle mechanism connected to the housing, the front handle mechanism comprising: a first gripping assembly and an installation assembly, at least a portion of the first gripping assembly being located above the output shaft; at least one of the first housing and the second housing being provided with a first mounting surface, the first mounting surface being located below an upper surface of the first housing, and the installation assembly being detachably mounted on the first mounting surface.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating around a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; a transmission mechanism for connecting the motor and the output mechanism; a housing, comprising a first housing supporting the output mechanism and a second housing supporting the transmission mechanism, the first housing being formed or connected to the second housing; and also comprising: a front handle mechanism, which is connected above the housing and is located on a side close to the output shaft; the front handle mechanism comprises a first grip assembly and an installation assembly; wherein the first housing is located below the first grip assembly and at least a portion of the first housing is located in front of the installation assembly; at least a portion of the second housing is located behind the first grip assembly, and the lower surface of the first grip assembly is substantially flush with the upper surface of the second housing.
  • an embodiment of the present application is an angular power tool, comprising: a main unit, which comprises: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating around a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; an energy source, used to power the motor; a shell, used to accommodate the motor and connect to the energy source; the power tool also comprises: a hanging mechanism, used to hang the power tool; the hanging mechanism comprises: a hanging body and a mounting part, wherein the hanging body comprises a storage state close to the shell and a hanging state away from the shell, and when the hanging body is in the storage state, the hanging body is located on the left or right side of the main unit.
  • the hanging body rotates about the second axis as the rotation axis, and when the hook body is in the storage position In the state, the projection of the hook body along the left-right direction is located inside the projection of the host along the left-right direction.
  • the energy source includes a battery pack, which has a length direction, a width direction, and a height direction.
  • the dimension of the battery pack in the length direction is larger than the dimension of the battery pack in the width direction and larger than the dimension of the battery pack in the height direction.
  • the width direction of the battery pack is parallel to the left-right direction of the shell, and the length direction of the battery pack is parallel to the up-down direction of the shell.
  • the hook body includes a hanging portion for performing a hanging function.
  • the projection of the hanging portion along the left and right directions and the projection of the battery pack along the left and right directions partially overlap in the front and rear directions.
  • the hanging mechanism is disposed between the energy source and the motor.
  • the hook body when the hook body is in the storage state, the hook body substantially extends along the contour of the host.
  • the distance from the center of the hanging portion to the center of gravity of the host is greater than or equal to the distance from the center of gravity of the host to the side end surface of the host.
  • the housing includes a gripping portion, and the mounting member is disposed below the gripping portion.
  • the angle power tool further includes a disassembly and assembly accessory, a fixing frame is connected to the main body, the disassembly and assembly accessory is detachably connected to the fixing frame, and the fixing frame is disposed close to the mounting member.
  • the fixing bracket is connected to the mounting member.
  • an embodiment of the present application is an angular power tool, comprising: a housing; a motor, at least partially disposed in the housing, the motor comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; further comprising: a front handle mechanism, connected above the housing and located on a side close to the output shaft; the front handle mechanism comprising a first gripping assembly; wherein the first gripping assembly comprises a first supporting portion for supporting a palm and a second supporting portion for receiving a finger, a accommodating space for accommodating the finger is provided between the second supporting portion and the housing, the first supporting portion is at least partially covered with a soft material, and the second supporting portion is at least partially covered with a soft material.
  • the soft material covers at least 80% of the first support portion.
  • the soft material covers at least 80% of the second support portion.
  • At least one receiving portion is disposed at the connection position between the first supporting portion and the second supporting portion, and the receiving portion extends from the second supporting portion toward the first supporting portion.
  • the front handle mechanism further includes a mounting assembly, and the mounting assembly is used to connect the front handle mechanism to the housing.
  • the front handle mechanism further includes a connecting portion, which connects the first supporting portion to the mounting assembly, and the second supporting portion is connected to the first supporting portion.
  • the width of the first supporting portion is greater than the width of the connecting portion.
  • a first hollow portion is provided on the soft material covering the first support portion, and a second hollow portion is provided on the soft material covering the second support portion.
  • the outer contour of the second supporting portion is arc-shaped.
  • an embodiment of the present application is an angular power tool, comprising: a housing; a motor, at least partially disposed in the housing, the motor comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; further comprising: a front handle mechanism, which is connected above the housing and located on a side close to the output shaft; the front handle mechanism comprises a first gripping assembly; wherein the first gripping assembly comprises a first supporting portion for supporting a palm and a second supporting portion for receiving a finger, a accommodating space for accommodating a finger is provided between the second supporting portion and the housing, and at least one accommodating portion is provided at the connection position between the first supporting portion and the second supporting portion, and the accommodating portion extends from the second supporting portion toward the first supporting portion.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; an energy source, used to power the motor; a switch assembly, used to control the motor, the switch assembly comprising a main switch, used for allowing a user to control the start and speed of the motor, the main switch comprising a trigger for operation; a housing, comprising a grip; the grip forming a grip space, the trigger being disposed in the grip space; the switch assembly, further comprising a top speed button, when the top speed button is triggered, the motor is at a set maximum rotation speed, the maximum rotation speed being greater than the highest value of the rotation speed that can be reached by pressing the trigger; the top speed button is located within a range that can be operated simultaneously with the trigger with one hand.
  • the maximum rotation speed of the output shaft is greater than or equal to 1600 RPM.
  • the angular power tool also includes a transmission mechanism for connecting the motor and the output mechanism, the transmission mechanism includes a speed shift assembly, the speed shift assembly transmission connection between the motor shaft and the output shaft, the speed shift assembly includes a first state for outputting a first transmission ratio and a second state for outputting a second transmission ratio.
  • the transmission mechanism further includes a switching assembly for being operated to switch the first state and the second state of the speed change assembly.
  • the speed shift assembly is in a first state, the maximum speed of the output shaft is a first output speed, and the speed shift assembly is in a second state, the maximum speed of the output shaft is a second output speed; the difference between the first output speed and the second output speed is greater than or equal to 1100.
  • the speed shift assembly when the top speed button is triggered, the speed shift assembly is in a first state, and the maximum speed of the output shaft is a first output speed; the speed shift assembly is in a second state, and the maximum speed of the output shaft is a second output speed; when the top speed button is not triggered, the maximum speed of the output shaft is a third output speed; the speed shift assembly is in the second state, and the maximum speed of the output shaft is a fourth output speed; the third output speed is less than the first output speed, and the fourth output speed is less than the second output speed.
  • the speed button is arranged outside the holding space.
  • the extreme speed button is arranged in front of the trigger, and along the front-to-back direction, the distance from the front end of the extreme speed button to the front end of the trigger is less than or equal to 77 mm.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; an energy source, used to power the motor; a switch assembly, used to control the motor, the switch assembly comprising a main switch, which is used for a user to control the start and speed of the motor, the main switch comprising a trigger for operation; a housing, comprising a grip; the grip forming a grip space, the trigger being arranged in the grip space; the switch assembly, further comprising a top speed button, when the top speed button is triggered, the motor is at a set maximum rotation speed, the maximum rotation speed being greater than the highest value of the rotation speed that can be reached by pressing the trigger.
  • an embodiment of the present application is an angular power tool, comprising: a motor, comprising a motor shaft rotating around a motor axis; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; an energy source, used to power the motor; a switch assembly, used to control the motor, the switch assembly comprising a main switch, which is used for a user to control the start and speed of the motor, the main switch comprising a trigger for operation; a housing, comprising a grip; the grip forming a grip space, the trigger being arranged in the grip space; the switch assembly, further comprising a top speed button, when the top speed button is triggered, the motor is at a set maximum rotation speed, the maximum rotation speed being greater than the highest value of the rotation speed that can be reached by pressing the trigger; the distance from the edge of the top speed button to the edge of the trigger closest to the top speed button is less than or equal to
  • an embodiment of the present application is an angle drill, comprising: a motor, comprising a motor shaft rotating around a motor axis; an energy source, for powering the motor; an output mechanism, comprising an output shaft rotating about a first axis, the output shaft being driven by the motor and the first axis intersecting with the motor axis; a housing, comprising a gripping portion; a clamping mechanism, the clamping mechanism being connected to the output shaft, for holding an execution portion for executing a function of the electric tool
  • the invention relates to a component; the clamping mechanism comprises a chuck portion connected to the output shaft and a clamping claw for clamping; and further comprises an illumination mechanism, comprising a first illumination element and a second illumination element, wherein the first illumination element is located on the lower surface of the shell, and the first illumination element is tilted to illuminate the bottom and the front of the clamping mechanism; the illumination direction of the second illumination element is parallel to the first axis to illuminate the bottom of the clamping mechanism.
  • the second lighting element is disposed between the chuck portion and the housing.
  • FIG1 is a structural diagram of the first embodiment of the present application.
  • FIG2 is a schematic diagram of a cross-sectional view of FIG1 ;
  • FIG3 is a schematic diagram of a structural diagram of some components in FIG1 ;
  • FIG4 is a schematic diagram of a structural diagram of the middle part of FIG1 from another perspective
  • FIG5 is a schematic diagram of a partial cross-sectional view of FIG4, showing the structure of the transmission case housing;
  • FIG6 is a schematic diagram of a partial cross-sectional view of FIG4 , showing the structure inside the transmission case housing;
  • FIG7 is a portion of a cross-sectional view of FIG2;
  • FIG8 is a schematic diagram of a structural diagram of some components of FIG1 ;
  • FIG9 is a portion of a cross-sectional view of FIG2;
  • FIG10 is a schematic diagram of the first embodiment of the present application in a hanging posture, with the hook body in a retracted state;
  • FIG11 is a schematic diagram of the first embodiment of the present application in a hanging posture, where the hook body is in a hanging state;
  • FIG. 12 is a schematic diagram of a structural diagram of some components of FIG. 1 , with the hook body in a stored state.
  • the term "and/or” is a description of the association relationship between related objects, indicating that three relationships can exist.
  • a and/or B can mean: A exists alone, A and B exist at the same time, There are three situations B.
  • the character "/" in this application generally indicates that the objects before and after are in an "and/or” relationship.
  • connection may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation.
  • direct connection refers to two parts or components being connected together without the need for an intermediate piece
  • indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece.
  • connect and “couple” are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.
  • relative terms e.g., "about,” “approximately,” “substantially,” etc.
  • the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not use relative terms should also be disclosed as specific values with tolerances.
  • substantially may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).
  • the function performed by a component can be performed by one component, multiple components, one part, or multiple parts.
  • the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
  • controller In this application, the terms “controller”, “processor”, “central processing unit”, “CPU”, and “MCU” are interchangeable. When a unit “controller”, “processor”, “central processing unit”, “CPU”, or “MCU” is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit. It can be executed by one or more of the above units.
  • the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.
  • the terms “calculate”, “judge”, “control”, “determine”, “identify”, etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).
  • an upper side, a lower side, a left side, a right side, a front side and a rear side are defined in the drawings of the specification.
  • FIG1 shows an angle power tool of the present application.
  • an angle drill 100 is used as an example.
  • the power tool can be equipped with different actuators, such as a screwdriver, a sleeve, and a grinding disc. Through these different actuators, the angle power tool can be, for example, an angle screwdriver or a wrench, or an angle grinder.
  • the angle drill 100 of the present application includes a main unit 1 and accessories.
  • the main unit 1 includes a housing 11, a motor 12, an output mechanism 15, a transmission mechanism 13 and an energy source 19.
  • the energy source 19 is used to provide electrical energy for the angle drill 100.
  • the energy source 19 includes a DC power supply or an AC power supply.
  • the energy source 19 includes a DC power supply.
  • the energy source 19 is a battery pack.
  • the battery pack 19 will replace the energy source, but it cannot be used as a limitation of the present application.
  • the battery pack 19 cooperates with the corresponding power supply circuit to power the corresponding components in the angle drill 100.
  • the energy source is not limited to the scenario of using the battery pack 19, and can also be powered by AC power, AC power, or a mixture of AC power and battery pack, in conjunction with the corresponding rectification, filtering and voltage regulation circuits to realize the power supply of each circuit element.
  • the accessories include: a hanging mechanism 31, a disassembly accessory 32 and a sub-handle mechanism 33.
  • the sub-handle mechanism 33 is used to bear the reaction force transmitted from the output mechanism 15, and is connected to the side of the front of the main machine 1 with a structure that can be disassembled by hand.
  • the sub-handle mechanism 33 is connected to the front of the main machine 1 with a threaded structure.
  • the sub-handle mechanism 33 can be installed on the left or the right to facilitate the user to operate with both hands.
  • the sub-handle mechanism 33 is generally used in heavy load conditions.
  • the motor 12, the transmission mechanism 13 and the output mechanism 15 are at least partially contained in the housing 11.
  • the housing 11 is also formed or connected with a grip 115 for user operation.
  • the grip 115 is ring-shaped or D-shaped. In this embodiment, the grip 115 is located at the rear of the host 1, which is convenient for the user to hold and operate.
  • a battery pack 19 is connected to one end of the grip 115. The battery pack 19 is detachably connected to the grip 115.
  • the motor 12 includes a motor shaft 121 that can rotate about the motor axis 102.
  • the output mechanism 15 includes an output shaft 151 that rotates about the first axis 101.
  • the output shaft 151 is used to output power.
  • the first axis 101 intersects with the motor axis 102.
  • the first axis 101 is orthogonal to the motor axis 102.
  • the first axis 101 intersects with the motor axis 102 at other angles.
  • the length of the housing 11 extends along the direction of the motor axis 102, that is, the front-to-back direction of the housing 11 is parallel to or coincides with the direction of the motor axis 102.
  • the transmission mechanism 13 is disposed between the motor 12 and the output mechanism 15, and is used to achieve power transmission between the motor 12 and the output shaft 151.
  • the transmission mechanism 13 has a plurality of transmission gears for outputting at different maximum rotation speeds.
  • the main body 1 further includes a clamping mechanism 16 for holding an actuator for performing the function of the power tool.
  • the clamping mechanism 16 is connected to one end of the output shaft 151 extending out of the housing 11.
  • the clamping mechanism 16 can clamp corresponding actuators when performing different functions, such as screwdrivers, drill bits, sleeves, grinding accessories, etc.
  • the motor 12 is a brushless motor. Therefore, the host 1 further includes a control mechanism 17 for controlling the motor 12.
  • the control mechanism 17 includes a control board 171.
  • the control board 171 is a PCBA component.
  • the motor 12 is an inner rotor brushless motor.
  • the housing 11 includes a first housing 111, a second housing 112, a third housing 113 and the above-mentioned gripping portion 115.
  • the first housing 111 is used to support the output mechanism 15, and the output mechanism 15 is partially located in the first housing 111 and partially extends out of the first housing 111.
  • the transmission mechanism 13 supported by the second housing 112.
  • the transmission mechanism 13 is at least partially accommodated in the second housing 112.
  • the third housing 113 is used to support the motor 12.
  • the motor 12 is at least partially accommodated in the third housing 113.
  • the first housing 111, the second housing 112, the third housing 113 and the gripping portion 115 are sequentially connected along the direction of the motor axis 102.
  • first housing 111, the second housing 112, the third housing 113 and the gripping portion 115 are sequentially connected in the direction from front to back.
  • the first housing 111 and the second housing 112 are connected to each other or are an integrally formed structure.
  • the second housing 112 is connected to the third housing 113.
  • the third housing 113 is connected to the gripping portion 115.
  • the first shell 111, the second shell 112, the third shell 113 and the grip 115 are respectively the shell 11 structures which are basically columnar or enclosed, that is, the shell 11 accommodates the components in the shell 11 in an enclosed state.
  • the first shell 111, the second shell 112, the third shell 113 and the grip 115 form two or more clamshell structures in the left-right or up-down directions, and a basically columnar structure is formed by connecting the clamshell structures.
  • the first housing 111 and the second housing 112 form a first accommodating space 112a, and the transmission mechanism is accommodated in the first accommodating space 112a.
  • the transmission mechanism 13 includes: a transmission case housing 131, a speed change assembly 132, and a direction change assembly 134.
  • the overall outer contour of the transmission case housing 131 is adapted to the inner side wall of the first accommodating space 112a.
  • the transmission case housing 131 includes at least two materials of different densities, and the average density of the transmission case housing 131 is less than or equal to 2.5 g/cm 3 . This reduces the weight of the transmission case housing.
  • the ratio of the output power of the angle drill to the weight of the angle drill is greater than or equal to 215 W/kg.
  • the ratio of the output power of the angle drill to the weight of the angle drill is greater than or equal to 220 W/kg.
  • the ratio of the output power of the angle drill to the weight of the angle drill is greater than or equal to 220 W/kg.
  • the ratio of the output power of the angle drill to the weight of the angle drill is greater than or equal to 250 W/kg.
  • the transmission box housing is made of at least two materials of different densities to reduce the weight of the transmission box housing, thereby reducing the weight of the whole angle drill, and improving the ratio of the output power of the angle drill to the weight of the angle drill.
  • the power density of the whole angle drill is greater than or equal to 220W/kg, which improves the performance of the angle drill and improves the user experience of the operator.
  • the output power of the angle drill when the output torque of the output shaft is greater than or equal to 10N ⁇ m and less than or equal to 20N ⁇ m, the output power of the angle drill is greater than or equal to 1250W. In some embodiments, when the output torque of the output shaft is greater than or equal to 10N ⁇ m and less than or equal to 20N ⁇ m, the output power of the angle drill is greater than or equal to 1500W. In this embodiment, when the torque of the output shaft is greater than or equal to 10N ⁇ m and less than or equal to 15N ⁇ m, the output power of the angle drill is greater than or equal to 1250W and less than or equal to 1700W. In some embodiments, when the output torque of the output shaft is less than or equal to 15N ⁇ m, the output power of the angle drill is greater than or equal to 1500W, ensuring high working performance of the angle drill.
  • the energy source includes at least one battery pack 19, so that the angle drill 100 in the present embodiment is a cordless rechargeable tool, which is more convenient to use.
  • the battery pack 19 provides a rated voltage of 24V.
  • the rated voltage of the battery pack 19 can be 18V, or the rated voltage of the battery pack 19 is greater than 24V, such as 56V.
  • the output torque of the angle drill 100 is greater than or equal to 70N ⁇ m.
  • the weight of the angle drill 100 is less than or equal to 6.0kg.
  • the bare metal weight of the angle drill is less than or equal to 6kg, and the bare metal weight is reduced while ensuring high performance.
  • the whole weight of the angle drill is less than or equal to 7.0kg.
  • the present application does not rely on reducing the weight of the battery pack, but improves the power density by truly reducing the bare metal weight and ensuring high output power.
  • the bare weight of the angle drill is less than or equal to 5 kg, thereby improving the user experience of the operator.
  • the transmission case housing is made of aluminum material.
  • the transmission case housing 131 includes a main body 131a of a first density and a support portion 131b of a second density, wherein the first density is greater than the second density, that is, the density of the main body 131a is greater than the density of the support portion 131b.
  • at least part of the main body 131a is made of a metal material, and the first density is less than or equal to 2.5g/ cm3 and greater than or equal to 1.5g/ cm3 .
  • the main body 131a or at least part of the main body 131a is made of a magnesium alloy.
  • the main body 131a also includes a weight reduction structure.
  • the weight reduction structure includes: a thinning portion 1313 and/or a hollow portion (not shown in the figure). Among them, the wall thickness of the thinning portion 1313 is reduced or a groove is formed, and the support portion 131b is formed or connected to the thinning portion 1313, so that the overall outer contour of the transmission case housing 131 is adapted to the housing 11.
  • the wall thickness of the hollow part (not shown) is partially filled with the supporting part 131b, so that the overall outer contour of the transmission case housing 131 is adapted to the housing 11.
  • the second density of the supporting part 131b is less than or equal to 2.0g/ cm3 and greater than or equal to 1.0g/ cm3 .
  • the supporting part 131b is made of plastic material.
  • the main body 131a includes a first main body 1311 and a second main body 1312, wherein the first main body 1311 is close to the motor 12, and the second main body 1312 is close to the output mechanism 15.
  • the output mechanism 15 is partially located in the second main body 1312.
  • the first main body 1311 and the second main body 1312 are connected by screws arranged along the motor axis 102.
  • the speed change assembly 132 includes: a sun gear 132a, a planetary gear set 132b and a switching assembly 133.
  • the sun gear 132a is connected to the motor shaft 121 and is driven to rotate by the motor 12.
  • the planetary gear set 132b includes a first planetary gear set and a second planetary gear set.
  • Each planetary gear set includes a plurality of planetary gears, a planetary gear carrier and an inner gear ring.
  • the first planetary gear 1321 is configured to mesh with the sun gear 132a.
  • the first-stage inner gear ring 1322 meshes with the first planetary gear 1321.
  • a plurality of first planetary gears 1321 are configured to mesh with the sun gear 132a respectively.
  • the motor 12 drives the first planetary gear 1321 to rotate through the sun gear 132a.
  • the first-stage inner gear ring 1322 is arranged in the first main body 1311 and does not rotate.
  • the first planetary gear carrier 1323 supports the first planetary gear 1321 respectively by means of the first support pin 1324.
  • the second-stage inner gear ring 1326 meshes with the second planetary gear 1325.
  • the second stage inner gear ring 1326 is disposed in the second main body 1312.
  • the second planetary wheel carrier 1327 supports the second planetary wheels 1325 by means of the second supporting pins 1328, respectively.
  • the speed change assembly 132 further includes an intermediate shaft 132c, the rear end of which is connected to the axis of the first planetary wheel carrier 1323.
  • the front end of the intermediate shaft 132c is formed or connected with meshing teeth, and a plurality of second planetary wheels 1325 are arranged to mesh with the front end of the intermediate shaft 132c.
  • the direction changing assembly 134 includes: a first bevel gear set and a second bevel gear set, wherein the planetary gear set 132b is connected to the The motor 12 is connected to the first bevel gear set, and the second bevel gear set is connected to the first bevel gear set and the output mechanism 15.
  • the first bevel gear set includes a bevel gear shaft 1341 and a first bevel gear 1342, and the bevel gear shaft 1341 is the rotation axis of the first bevel gear 1342.
  • the second bevel gear set includes a second bevel gear 1343 meshing with the first bevel gear 1342.
  • the bevel gear shaft 1341 is combined with the second planetary gear carrier 1327, and the bevel gear shaft 1341 is supported by a bearing in a coaxial manner with the intermediate shaft 132c. That is to say, the bevel gear shaft 1341 and the intermediate shaft 132c are coaxial or parallel to the motor shaft 121 respectively.
  • the second-stage inner gear ring 1326 and the change-of-direction assembly 134 are arranged in the second main body 1312.
  • the first support pin 1324 of the first planetary gear 1321 penetrates the first planetary gear carrier 1323 and protrudes forward.
  • the first support pin 1324 is connected to the first speed regulating ring 132d, and the first speed regulating ring 132d can slide in the front-back direction.
  • the first speed regulating ring 132d slides between the first position and the second position. As shown in Figures 5-7, when the first speed regulating ring 132d is in the first position, the first speed regulating ring 132d is engaged with the first planetary gear carrier 1323 and the intermediate shaft 132c and rotates as a whole.
  • the switching assembly 133 is arranged below the main body 131a.
  • the switching assembly 133 includes a speed switching part 1331 and a paddle 1332.
  • the paddle 1332 connects the speed switching part 1331 and the first speed regulating ring 132d.
  • the front and rear positions of the first speed regulating ring 132 d are switched by the rotation speed switching unit 1331 .
  • the second support pin 1328 passes through the second planetary gear 1325 and protrudes backward.
  • the second speed regulating ring 132f is provided on the second stage inner gear ring 1326, and the second speed regulating ring 132f is provided at the rear end of the second support pin 1328.
  • the second speed regulating ring 132f is engaged with the first speed regulating ring 132d at the second position in the rotation direction.
  • the rotation of the first planetary gear carrier 1323 decelerated by the first planetary gear 1321 is transmitted to the second planetary gear 1325 via the intermediate shaft 132c.
  • the second planetary gear carrier 1327 is decelerated and rotated.
  • the bevel gear shaft 1341 is decelerated in two stages to output the first transmission ratio, and rotates at a low speed (first state).
  • the rotation of the first planetary gear carrier 1323 decelerated by the first planetary gear 1321 is transmitted to the second speed regulating ring 132f via the first support pin 1324 and the first speed regulating ring 132d.
  • the second planetary gear carrier 1327 is rotated by the second support pin 1328. Therefore, the bevel gear shaft 1341 rotates at a high speed (second state) because the second stage deceleration output second transmission is cancelled.
  • the second stage inner gear ring 1326 is rotatably arranged in the second main body 131a.
  • a torque limiter is provided in front of the second-stage inner gear ring 1326 and in the main body 131a.
  • the torque limiter includes: a torque adjustment mechanism, which is used to be operated to set the output threshold of the angle drill 100.
  • this output threshold is not adjustable by the user, that is, the setting of this output threshold needs to be set by the manufacturer or professional maintenance personnel to ensure safe use.
  • the angle drill 100 When the angle drill 100 is operated, the angle drill 100 outputs torque to the operated workpiece.
  • the torque limiter limits the transmission mechanism from continuing to drive the output shaft to output torque, thereby limiting the output torque of the angle drill 100 within an appropriate torque range.
  • the bevel gear shaft 1341 is configured as a hollow structure along the length direction, which can further reduce the weight of the product.
  • the main machine further includes a front handle mechanism 14.
  • a front handle mechanism 14 When the operator uses the main machine, one hand holds the gripping portion 115 and the other hand holds the front handle mechanism 14, so that the angle drill 100 is stably held and operated.
  • the front handle mechanism 14 is connected to the upper part of the housing 11 and at least a part of the front handle mechanism 14 is located above the output shaft 151.
  • the front handle mechanism 14 includes a first grip assembly 14a and a mounting assembly 14b.
  • the first grip assembly 14a includes: a first support portion 141 for supporting the palm and a second support portion 142 for receiving fingers.
  • a receiving space for accommodating fingers is provided between the second support portion 142 and the shell 11.
  • the first support portion 141 is at least partially covered with a soft material 143
  • the second support portion 142 is at least partially covered with a soft material 143.
  • the first support portion 141 and the second support portion 142 are made of hard materials to withstand the force applied by the operator. Including hard plastic and metal materials. Part of the soft material 143 is covered on the hard material to make the operator more comfortable to hold when using it.
  • the head of the first gripping component 14a that is, the first support portion 141 and the second support portion 142, constitute an ergonomic curved saddle structure without any sharp corners or edges, which is more suitable for the hand gripping method.
  • the outer contour line of the second support portion 142 in the left and right directions is arc-shaped.
  • the lack of ribs or grooves reduces the difficulty of manufacturing.
  • the soft material 143 covers at least 80% of the first support portion 141.
  • the soft material 143 covers at least 80% of the second support portion 142.
  • the soft material 143 includes rubber, silicone, etc.
  • a first hollow portion 1411 is provided on the soft material 143 covering the first support portion 141, and a second hollow portion 1421 is provided on the soft material 143 covering the second support portion 142.
  • the first hollow portion 1411 and the second hollow portion 1421 expose the hard materials of the first support portion 141 and the second support portion 142, which is convenient for the operator to position.
  • At least one receiving portion 1422 is disposed at the connection position between the first supporting portion 141 and the second supporting portion 142, and the receiving portion 1422 extends from the second supporting portion 142 toward the first supporting portion 141.
  • the recessed receiving portion 1422 can receive the operator's fingers, making it easier for the operator to apply force.
  • the mounting assembly 14b is used to connect the front handle mechanism 14 to the housing 11.
  • the front handle mechanism 14 also includes a connecting portion 144, which connects the first support portion 141 to the mounting assembly 14b.
  • the second support portion 142 is connected to the first support portion 141.
  • the width of the first support portion 141 is greater than the width of the connecting portion 144.
  • the connecting portion 144 in the left-right direction is smoothly connected to the outer contour line of the first supporting portion 141.
  • the front handle mechanism 14 of the present application is more ergonomic and more comfortable for the operator to hold.
  • the first housing 111 is located below the first grip assembly 14a and at least partially in front of the mounting assembly 14b.
  • the first housing 111 includes: a first end surface 111a located below the first grip assembly 14a and in front of the mounting assembly 14b, and the first end surface 111a and the second support portion 142 form a receiving space for accommodating fingers.
  • the angle ⁇ between the projection of the first end surface 111a or the projection of the tangent of the first end surface and the projection of the motor axis 102 is greater than or equal to 30°.
  • the first end surface 111a is an oblique straight surface, so the angle ⁇ is the angle between the projection of the first end surface 111a and the projection of the motor axis 102.
  • the angle ⁇ is the angle between the projection of the tangent of the first end surface 111a and the projection of the motor axis 102.
  • an angle ⁇ between a projection of the first end surface 111 a or a projection of a tangent plane of the first end surface and a projection of the motor axis 102 is greater than or equal to 30° and less than or equal to 45°.
  • At least one of the first shell 111 and the second shell 112 is provided with a first mounting surface 112b, the first mounting surface 112b is located below the upper surface of the first shell 111, and the mounting assembly 14b is detachably mounted on the first mounting surface 112b.
  • the second shell 112 is at least partially located behind the first grip assembly 14a, and the lower surface of the first grip assembly 14a is substantially flush with the upper surface of the second shell 112.
  • the first shell 111 and the second shell 112 are connected or integrally formed, and a step or groove is formed at the connection or combination of the first shell 111 and the second shell 112.
  • the first mounting surface 112b is the lowest surface of the step or groove.
  • the front handle mechanism 14 is mounted on the shell 11 in a manner of being embedded in the shell 11.
  • the accommodation space for accommodating fingers is increased, and the operator is more comfortable to use.
  • the front end of the first shell 111 is lowered, which is suitable for the angle drill 100 to be used in a narrow space.
  • the first end surface 111a extends in the front-to-back direction to the edge of the mounting assembly 14b.
  • the first shell 111 is tapered at the portion below the first grip assembly 14a to further increase the accommodating space for accommodating fingers.
  • the second bevel gear 1343 in the second bevel gear set is connected to the output shaft 151, that is, the second bevel gear 1343 rotates around the first axis 101.
  • the second bevel gear 1343 is sleeved on the output shaft 151.
  • the axis of the bevel gear shaft 1341 is located above the second bevel gear 1343.
  • the meshing tooth surface of the second bevel gear 1343 faces upward. This ensures the angle between the first end face 111a and the motor axis 102.
  • the clamping mechanism 16 includes: a chuck portion 161 connected to the output mechanism 15 and a clamping claw 162 for clamping.
  • the chuck portion 161 is connected to the output shaft 151.
  • the distance H from the upper surface of the first gripping component 14a to the lower surface of the chuck portion 161 is less than or equal to 180 mm.
  • the size of the front part of the angle drill is reduced, which is suitable for narrow spaces. Use between.
  • an output shaft cover 152 is provided in a direction perpendicular to the first axis 101, and a bearing is provided in the output shaft cover 152 to support the output shaft 151.
  • the bearing is an end face bearing 153 supporting the lower end face of the second bevel gear 1343.
  • the end face bearing 153 axially limits the second bevel gear 1343.
  • a wave spring washer 154 is installed on the upper end face of the second bevel gear 1343 to adjust the side clearance of the second bevel gear 1343.
  • the axial accuracy requirements of the installation bushing 155 are reduced to reduce costs.
  • the bushing 155 and the wave spring washer 154 are installed with a retaining spring to axially limit the output shaft 151.
  • the output shaft cover is provided with a threaded connection structure
  • the second main body is provided with a threaded connection structure in cooperation, and the screw fixation is cancelled, so that the diameter of the first housing of the angle drill along the first axis direction is reduced. It is easier to operate in narrow spaces.
  • the motor shaft 121 also drives a fan 122 for heat dissipation.
  • the fan 122 is arranged between the motor 12 and the transmission mechanism 13. That is, the fan 122 is arranged in front of the motor 12.
  • the housing 11 includes: an air inlet, which can allow airflow to enter the housing 11 when the fan 122 rotates.
  • An air outlet 119 which can allow airflow to be discharged from the housing 11 when the fan 122 rotates.
  • the air inlet includes a first air inlet 117 and a second air inlet 118.
  • the second air inlet 118 is arranged between the first air inlet 117 and the air outlet 119.
  • the air outlet 119 is arranged at the rear of the transmission mechanism 13.
  • the first airflow entering from the first air inlet 117 and discharged from the air outlet 119 flows through the control mechanism 17 and the motor 12 in sequence.
  • the second airflow entering from the second air inlet 118 and discharged from the air outlet 119 flows through at least part of the transmission mechanism 13.
  • the first airflow dissipates heat for the control mechanism 17 and the motor 12 in turn, and the second airflow dissipates heat for the transmission mechanism 13.
  • the heat dissipation efficiency is improved through the reasonable arrangement of the heat dissipation circuit, thereby achieving high heat dissipation efficiency of the electric tool.
  • the housing 11 further includes an intermediate housing 114, which is disposed between the motor 12 and the output mechanism 15.
  • the intermediate housing 114 is disposed between the second housing 112 and the third housing 113.
  • the intermediate housing 114 includes a first heat dissipation portion 114a made of a heat dissipation material, and the air outlet 119 is at least partially disposed in the first heat dissipation portion 114a.
  • the air outlet 119 is opened in the first heat dissipation portion 114a to increase the heat dissipation efficiency.
  • the first heat dissipation portion 114a is made of metal.
  • the intermediate housing 114 is formed or connected to the transmission case housing 131.
  • the intermediate housing 114 includes a first intermediate housing 1141 surrounding the motor axis 102 and extending in the direction of the motor axis 102 and a second intermediate housing 1142 perpendicular to the motor axis 102.
  • the first heat dissipation portion 114a is disposed in the first intermediate housing 1141.
  • the second intermediate housing 1142 is disposed at the rear end of the transmission case housing 131, and the second intermediate housing 1142 supports the motor shaft 121 through a bearing.
  • the grip portion 115 is disposed behind the motor 12, and a storage space is formed inside the grip portion 115.
  • the first air inlet 117 is disposed at the lower portion of the grip portion 115.
  • the control mechanism 17 is disposed in the storage space.
  • the grip portion 115 includes a front end portion 1151, a rear end portion 1152, an upper end portion 1153, and a lower end portion 1154.
  • the front end portion 1151, rear end 1152, upper end 1153 and lower end 1154 are hollow structures respectively and are interconnected.
  • the front end 1151, rear end 1152, upper end 1153 and lower end 1154 enclose a gripping space.
  • the rear end 1152 is provided with a coupling portion 116, which is detachably connected to the battery pack 19.
  • the upper end 1153 is for the operator to grip and operate.
  • the front end 1151 is connected to the third shell 113, wherein the motor 12 is at least partially accommodated in the front end 1151.
  • the control board 171 is accommodated in the front end 1151 and the control board 171 is arranged obliquely with the motor axis 102. In one embodiment, the motor axis 102 passes through the plate surface of the control board 171, and the control board 171 is inclined forward.
  • the first air inlet 117 is arranged on the lower surface of the lower end 1154. It is configured so that the interior (control board 171) is not exposed from directly below.
  • a heat shield 124 is provided between the transmission mechanism 13 and the air outlet 119.
  • the heat shield 124 extends in a direction perpendicular to the motor axis 102.
  • An airflow channel 1241 for airflow is provided between the heat shield 124 and the air outlet 119.
  • the heat shield 124 prevents the first airflow from causing the temperature of the second intermediate housing 1142 to rise.
  • the motor 12 is provided with a barrel 123 on the outside.
  • the barrel 123 is provided with heat dissipation holes at the front and rear ends, respectively, so that the first airflow enters the barrel 123 to dissipate heat for the motor 12.
  • the second air inlet 118 is provided on the outside of the barrel 123. Therefore, after the second airflow enters the housing 11 from the outside of the barrel 123, it flows through the second intermediate housing 1142 to dissipate heat for the transmission mechanism 13 and then flows out from the air outlet 119.
  • the motor 12 drives the fan 122 to rotate
  • two heat dissipation airflows are generated.
  • the first airflow enters from the first air inlet 117 located on the lower surface of the lower end 1154 of the grip portion 115, flows through the control board 171, and then flows into and out of the heat dissipation motor 12 through the heat dissipation holes provided at the front and rear ends of the barrel 123, and then flows out from the air outlet 119.
  • the air outlet 119 is arranged on the transmission case housing, the first airflow will also flow through the transmission case housing, but since the first airflow has flowed through the control board 171 and the motor 12, and carries the heat of the control board 171 and the motor 12, the heat dissipation effect on the transmission case housing is not significant.
  • the second airflow enters from the second air inlet 118 located on the outside of the barrel 123, passes through the airflow channel 1241 between the heat insulation board 124 and the air outlet 119 from the outside of the barrel 123, and flows through the second intermediate housing 1142. Since the second intermediate housing 1142 is formed or connected to the transmission case housing 131, the second airflow dissipates heat for the transmission case housing 131.
  • the second airflow only passes through the outside of the barrel, it is equivalent to that the heat dissipation airflow entering from the second air inlet 118 only passes through the transmission box housing 131.
  • the second airflow is specifically for cooling the transmission box housing 131, thereby reducing the heat of the transmission mechanism 13 and then flowing out from the air outlet 119.
  • the main unit also includes a switch assembly 172 for controlling the motor 12.
  • the switch assembly 172 includes a main switch 1721 and a speed button 1723.
  • the main switch 1721 is used for the user to control the start and speed of the motor 12, and the main switch 1721 includes a trigger 1722 for operation.
  • the speed button 1723 is connected to an integrated switch, such as a membrane switch.
  • the membrane switches of the main switch 1721 and the speed button 1723 are connected to the control board 171.
  • the motor 12 is set to the maximum rotation speed, which is greater than the highest value of the rotation speed that can be reached by pressing the trigger 1722.
  • the extreme speed button 1723 is located within the range that can be operated with one hand at the same time as the trigger 1722.
  • the "range that can be operated with one hand at the same time" is: when or after the operator holds and can apply operating force to the trigger 1722, the extreme speed button 1723 can be touched and applied by at least one finger of the same hand.
  • the trigger 1722 is disposed below the upper end 1153 of the grip portion 115.
  • the operator uses four fingers to pull the trigger 1722 from bottom to top, and the extreme speed button 1723 is disposed at a position operable by at least the thumb of the operator.
  • the trigger 1722 is disposed within the gripping space, and the extreme speed button 1723 is disposed outside the gripping space.
  • the extreme speed button 1723 is disposed on the upper surface of the grip portion 115.
  • the extreme speed button 1723 is disposed in front of the trigger 1722, and along the front-to-back direction, the distance L1 from the front end of the extreme speed button 1723 to the front end of the trigger 1722 is less than or equal to 77 mm.
  • the length L2 of the extreme speed button 1723 is greater than or equal to 20 mm and less than or equal to 30 mm.
  • the related art discloses that the operator can adjust the speed of the motor 12 by pressing the trigger 1722, which will not be repeated here.
  • the speed change assembly 132 When the extreme speed button 1723 is triggered, the speed change assembly 132 is in the first state, and the maximum speed of the output shaft 151 is the first output speed. When the speed change assembly 132 is in the second state, the maximum speed of the output shaft 151 is the second output speed. The difference between the first output speed and the second output speed is greater than or equal to 1100. When the extreme speed button 1723 is triggered, the maximum speed of the output shaft 151 is greater than or equal to 1600RPM. This increases the adjustable speed range of the angle drill 100. When the extreme speed button 1723 is not triggered, the speed change assembly 132 is in the first state, and the maximum speed of the output shaft 151 is the third output speed.
  • the maximum speed of the output shaft 151 is the fourth output speed.
  • the third output speed is less than the first output speed
  • the fourth output speed is less than the second output speed.
  • the speed range of the output shaft 151 is greater than or equal to 400RPM and less than or equal to 1400RPM; when the extreme speed button 1723 is triggered, the speed range of the output shaft 151 is greater than or equal to 490RPM and less than or equal to 1700RPM.
  • the adjustable modes of the angle drill 100 are increased to adapt to more working conditions.
  • the main body 1 also includes: a lighting mechanism.
  • the lighting mechanism includes a first lighting element 181 and a second lighting element 182.
  • the first lighting element 181 is located on the lower surface of the housing 11, and the first lighting element 181 is tilted to illuminate the bottom and front of the clamping mechanism 16; the illumination direction of the second lighting element 182 is parallel to the first axis 101 to illuminate the bottom of the clamping mechanism 16.
  • the brightness is higher by setting two lightings.
  • the actuator of the angle drill 100 since the actuator of the angle drill 100 includes a large-diameter barrel drill bit, the lighting parallel to the first axis 101 will be blocked. Setting two lightings is conducive to the use of the angle drill 100 under various working conditions.
  • the second lighting element 182 includes a plurality of LED lamp beads 1821.
  • the LED lamp beads 1821 are arranged in a ring around the first axis 101.
  • the center line of the LED lamp beads 1821 is a circle with the first axis 101 as the center, and the diameter D of the circle is greater than or equal to 100 mm.
  • the motor axis 102 is set as the X-axis direction, and in the left-to-right direction, the Y-axis direction is perpendicular to the motor axis 102, and multiple LED lamp beads 1821 are respectively arranged outside the X-axis and the Y-axis.
  • a plurality of LED lamp beads 1821 are mounted on a lamp board, and the lamp board is disposed between the lower end of the first shell 111 and the chuck portion 161 of the clamping mechanism 16.
  • the second lighting element 182 includes a wire, and the wire is electrically coupled to an energy source to power the LED lamp.
  • the wire is connected from the lamp board through the second main body 1312 to between the second shell 112 and the first main body 1311. It enters the gripping portion 115 from the intermediate shell 114 and the upper portion of the third shell 113 and is connected to the control board 171.
  • the wire passes through the weight-reducing structure of the main body 131a, and a soft rubber sleeve is disposed on the outer surface of the wire.
  • the wire path is reasonably set to prevent the wire from interfering with the fan 122 and the air inlet and outlet 119.
  • the first lighting element 181 is electrically coupled to the control board 171 by a wire.
  • the first lighting element 181 includes an LED lamp.
  • the first lighting element 181 is installed below the front end 1151 of the grip 115.
  • the first lighting element 181 is arranged in front of the control board 171 and behind the motor 12.
  • the first lighting element 181 is arranged below the motor axis 102, and the mounting surface of the first lighting element 181 is located on the front surface of the grip 115 to reduce the possibility of damage.
  • the light emitting angle of this surface is more conducive to lighting.
  • the coupling portion 116 is further formed with a guide structure 1161 for guiding the battery pack 19 to couple to the housing 11 along the first straight line 103 .
  • the first straight line 103 along which the battery pack 19 couples to the housing 11 is perpendicular to the motor axis 102 .
  • the battery pack 19 has a length direction F1, a width direction F2 and a height direction F3.
  • the size of the battery pack 19 in the length direction F1 is greater than the size of the battery pack 19 in the width direction F2 and greater than the size of the battery pack 19 in the height direction F3; wherein, the length direction F1 of the battery pack 19 is parallel to the direction of the first straight line 103. That is, the width direction F2 of the battery pack 19 is parallel to the left-right direction of the housing 11, and the length direction F1 of the battery pack 19 is parallel to the up-down direction of the housing 11. In this way, the size of the battery pack 19 in the length direction F1 can be prevented from interfering with the operation of the operator. That is, after the battery pack 19 is coupled to the housing 11, the relatively small width direction F2 is arranged along the left-right direction, so that the size of the battery pack 19 in the width direction F2 is relatively small.
  • the center of gravity G of the angle drill 100 is located slightly rearward of the axial center of the shell 11, thereby maintaining balance in the front-to-back direction.
  • the worker holds the upper end 1153 of the grip 115 with one hand and uses the other hand to hold the front handle mechanism 14, the operability is excellent.
  • the hanging mechanism 31 of the angle drill 100 is used to hang the angle drill 100 in a vertical direction with the output mechanism 15 located below.
  • the hanging mechanism 31 includes a hanging body 311 and an installation Part 312. Among them, the hanging body 311 rotates with the second axis 104 as the axis of rotation, and the hanging body 311 includes a storage state close to the shell 11 and a hanging state away from the shell 11. As shown in Figures 10 and 12, when the hanging body 311 is in the storage state, the hanging body 311 is at least partially located on the left or right side of the main unit 1.
  • the battery pack 19 is plugged in and out along the up and down directions, and the hanging body 311 is stored to the left or right side to avoid interference with the installation and disassembly path of the battery pack 19.
  • the size of the angle drill 100 in the up and down direction is greater than the size in the left and right direction.
  • the plane where the hanging body 311 is located is set in the up and down direction to avoid the size of the whole machine from increasing to cover the hanging body 311, which meets the compactness requirements of the product.
  • the hanging mechanism 31 is arranged between the battery pack 19 and the motor 12.
  • the hanging body 311 includes a hook portion 3111 and a connecting rod 3112.
  • the hook portion 3111 is used to perform the hanging function, and is basically C-shaped.
  • the connecting rod 3112 connects the hook portion 3111 and the mounting member 312.
  • the connecting rod 3112 is rotatably connected to the mounting member 312.
  • the mounting member 312 is connected to the lower end portion 1154 of the holding portion.
  • the mounting member 312 is mounted on the side surface of the lower end portion 1154 of the holding portion 115 by fasteners.
  • the mounting member 312 is mounted on the lower surface or upper surface of the lower end portion 1154 of the holding portion 115 by fasteners.
  • the hanging body 311 as a whole extends backward in the front-to-back direction, and the hook portion 3111 extends to the side of the battery pack 19.
  • the hanging body 311 when the hanging body 311 is in the storage state, the hanging body 311 basically extends along the contour of the main machine 1.
  • the connecting rod 3112 in order to maintain the overall shape of the angle drill 100, maintains a bend that matches the outer contour of the shell 11.
  • the projection of the hook part 3111 along the left and right directions and the projection of the battery pack 19 along the left and right directions at least partially overlap in the front and back directions.
  • the hanging body as a whole extends forward along the front and back directions, and the hook part extends to the side of the motor, that is, the hook part extends to the side of the front end of the third shell or the grip.
  • the projection of the hanging body along the left and right directions is located inside the projection of the main machine 1 along the left and right directions. This is to avoid interference of the hanging body 311 with the operator's operation and the workpiece.
  • the midpoint M of the hook portion 3111 is behind the center of gravity G of the host 1.
  • the distance H1 from the midpoint M of the hook portion 3111 to the center of gravity G of the host 1 is greater than or equal to the distance H2 from the center of gravity G of the host 1 to the side end surface of the host 1. Stable hanging is ensured.
  • H1 is less than or equal to 2*H2.
  • the disassembly and assembly accessory 32 is used to lock and release the clamping mechanism 16.
  • the main body 1 is connected to a fixing frame 331, and the disassembly and assembly accessory 32 is detachably connected to the fixing frame 331.
  • the fixing frame 331 is arranged near the mounting member 312.
  • the fixing frame 331 is mounted on the lower end 1154 of the gripping portion 115.
  • the mounting member 312 is mounted on the side surface of the lower end 1154 of the gripping portion 115 by fasteners
  • the fixing frame 331 is mounted on the lower surface of the lower end 1154 of the gripping portion 115 by fasteners.
  • the mounting member 312 and the fixing frame 331 are fastened together.
  • the fixings are mounted on the same surface of the lower end 1154 of the gripping portion 115.
  • the fixing frame 331 is connected to the mounting member 312. This meets the compactness requirement of the product.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

一种角钻(100),包括:壳体(11);电机(12),至少部分设置在壳体(11)内,电机(12)包括绕电机轴线(102)转动的电机轴(121);能量源(19),给电机(12)供电,能量源(19)可拆卸连接在壳体(11)上;输出机构(15),包括以第一轴线(101)为轴旋转的输出轴(151),输出轴(151)被电机(12)驱动并且第一轴线(101)与电机轴线(102)相交;输出轴(151)的扭矩在大于等于10N·m时,角钻(100)的输出功率与角钻(100)的重量的比值大于等于220W/kg。

Description

角钻及角向电动工具
本申请要求申请日为2022年9月28日、申请号为202211185938.6,申请日为2022年9月28日、申请号为202222581562.2,申请日为2022年9月28日、申请号为202211185918.9,申请日为2022年9月28日、申请号为202211185917.4及申请日为2022年9月28日、申请号为202211196086.0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
本申请涉及一种电动工具,例如涉及一种角钻及角向电动工具。
背景技术
相关技术中的角向电动工具,尤其是角钻,一般使用在大负载条件。所以对于产品的输出扭矩要求比较高。在提高输出扭矩的过程中,很容易增加产品的整机重量。牺牲了产品的使用舒适性而换取了较高的工作性能。
本部分提供了与本申请相关的背景信息,这些背景信息不一定是现有技术。
发明内容
本申请的一个目的是解决或至少减轻上述问题的一部分或者全部。本申请提供一种角钻,能够更符合人机工程、使用更舒适。
第一方面,本申请一实施例提供了一种角钻,包括:壳体;电机,至少部分设置在所述壳体内,所述电机包括绕电机轴线转动的电机轴;直流电源,用于给所述电机供电,所述直流电源可拆卸连接在所述壳体上;输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;传动机构,用于连接所述电机和所述输出机构;所述角钻对工件的输出扭矩大于等于10N·m时,所述角钻的输出功率与所述角钻的重量的比值大于等于220W/kg。
在一些实施例中,所述角钻对工件的输出扭矩大于等于10N·m时,所述角钻的输出功率与所述角钻的重量的比值大于等于250W/kg。
在一些实施例中,所述角钻对工件的输出扭矩大于等于10N·m小于等于20N·m时,所述角钻的输出功率大于等于1250W。
在一些实施例中,所述角钻对工件的输出扭矩大于等于10N·m小于等于20 N·m时,所述角钻的输出功率大于等于1500W。
在一些实施例中,所述直流电源包括至少一个电池包。
在一些实施例中,所述角钻在拆除所述直流电源后,所述角钻的重量小于等于6.0kg。
在一些实施例中,所述传动机构包括传动箱壳体和变向组件;所述变向组件传动连接所述电机轴和所述输出轴,所述变向组件至少部分位于所述传动箱壳体中;所述传动箱壳体位于所述壳体内;其中,所述传动箱壳体包括至少两种不同密度材料。
在一些实施例中,所述传动箱壳体的平均密度小于等于2.5g/cm3
在一些实施例中,所述传动箱壳体包括第一密度的主体部和第二密度的支撑部,所述主体部用于支撑所述传动箱壳体的内部部件,所述第一密度大于所述第二密度。
在一些实施例中,至少部分所述主体部由金属材料制成,所述第一密度小于等于2.5g/cm3大于等于1.5g/cm3
在一些实施例中,所述传动箱壳体设置有减重结构。
在一些实施例中,还包括:风扇,被所述电机轴驱动;控制机构,用于控制所述电机;所述壳体,包括:第一进风口,在所述风扇转动时使气流进入所述壳体;第二进风口,在所述风扇转动时使气流进入所述壳体;出风口,在所述风扇转动时使气流排出所述壳体;其中,所述第二进风口设置在所述第一进风口与所述出风口之间;当所述风扇转动时,由所述第一进风口进入、由所述出风口排出的第一气流依次流经所述控制机构和所述电机;由所述第二进风口进入、由所述出风口排出的第二气流流过至少部分所述传动机构。
在一些实施例中,所述第二进风口相对于所述第一进风口靠近所述风扇设置,所述出风口设置在所述传动机构后部。
在一些实施例中,所述壳体包括设置在所述电机与所述输出机构之间的中间壳体,所述中间壳体包括由金属制成制成的第一散热部,所述出风口至少部分设置在所述第一散热部内。
在一些实施例中,所述壳体包括握持部,所述握持部呈环型,所述握持部内部形成有容纳空间,所述第一进风口设置在所述握持部的下部。
在一些实施例中,所述电机的外部套设有机筒,所述机筒在前端和后端分别设置有散热孔,以使所述第一气流进入机筒中为电机散热。
第二方面,本申请一实施例提供了一种角钻,其中;包括:壳体;电机,至少部分设置在所述壳体内,所述电机包括绕电机轴线转动的电机轴;直流电源,用于给所述电机供电,所述直流电源可拆卸连接在所述壳体上;输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;传动机构,用于连接所述电机和所述输出机构;所述角钻对工件的输出扭矩小于等于15N·m时,所述角钻的输出功率大于等于1500W。
第三方面,本申请一实施例一种角钻,包括:壳体;电机,至少部分设置在所述壳体内,所述电机包括绕电机轴线转动的电机轴;直流电源,用于给所述电机供电,所述直流电源可拆卸连接在所述壳体上;所述直流电源的标称电压大于等于18V;输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;传动机构,用于连接所述电机和所述输出机构;所述角钻的输出功率与所述角钻的重量的比值大于等于215W/kg。
在一些实施例中,所述角钻在拆除所述直流电源后,所述角钻的重量小于等于6.0kg。
在一些实施例中,所述角钻对工件的输出扭矩大于或等于70N·m。
第四方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;风扇,被所述电机轴驱动;输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;传动机构,用于连接所述电机和所述输出机构;控制机构,用于控制所述电机;壳体,其长度沿所述电机轴线方向延伸;所述壳体,包括:第一进风口,在所述风扇转动时使气流进入所述壳体;第二进风口,在所述风扇转动时使气流进入所述壳体;出风口,在所述风扇转动时使气流排出所述壳体;其中,所述第二进风口设置在所述第一进风口与所述出风口之间;当所述风扇转动时,由所述第一进风口进入、由所述出风口排出的第一气流依次流经所述控制机构和所述电机;由所述第二进风口进入、由所述出风口排出的第二气流流过至少部分所述传动机构。
在一些实施例中,所述第二进风口相对于所述第一进风口靠近所述风扇设置。
在一些实施例中,所述出风口设置在所述传动机构后部。
在一些实施例中,所述壳体包括设置在所述电机与所述输出机构之间的中间壳体,所述中间壳体包括由金属制成制成的第一散热部,所述出风口至少部分设置在所述第一散热部内。
在一些实施例中,所述壳体包括握持部,所述握持部呈环型,所述握持部内部形成有容纳空间。
在一些实施例中,所述第一进风口设置在所述握持部的下部。
在一些实施例中,所述握持部至少部分设置在所述电机后方,所述控制机构设置在所述电机后方。
在一些实施例中,所述电机的外部套设有机筒,所述机筒在前端和后端分别设置有散热孔,以使所述第一气流进入机筒中为电机散热。
在一些实施例中,所述第二进风口设置在所述机筒外侧。
在一些实施例中,所述风扇设置在所述电机与所述传动机构之间。
在一些实施例中,传动机构包括传动箱壳体和变向组件,所述变向组件至少部分位于所述传动箱壳体中;所述传动箱壳体位于所述壳体内;所述中间壳体形成或连接于所述传动箱壳体。
在一些实施例中,所述传动机构与所述出风口之间设置隔热板,所述隔热板沿垂直于所述电机轴线方向延伸,所述隔热板与所述出风口之间设置有供气流通过的气流通道。
第五方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;风扇,被所述电机轴驱动;输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;传动机构,用于连接所述电机和所述输出机构;控制机构,用于控制所述电机;壳体,其长度沿所述电机轴线方向延伸;所述壳体,包括:第一进风口,在所述风扇转动时使气流进入所述壳体;出风口,在所述风扇转动时使所述气流排出所述壳体;中间壳体,设置在所述电机与所述输出机构之间,所述中间壳体包括由散热材料制成的第一散热部,所述出风口至少部分设置在所述第一散热部内;在所述风扇转动时,由所述第一进风口进入、由所述出风口排出的气流依次流经所述控制机构和所述电机。
在一些实施例中,第一散热部由金属制成。
在一些实施例中,还包括第二进风口,在所述风扇转动时使气流进入所述壳体。
在一些实施例中,所述第二进风口设置在所述第一进风口与所述出风口之间;所述第二进风口进入、由所述出风口排出的第二气流流过至少部分所述传动机构。
在一些实施例中,所述风扇设置在所述电机与所述传动机构之间。
在一些实施例中,传动机构包括传动箱壳体和变向组件,所述变向组件至少部分位于所述传动箱壳体中;所述传动箱壳体位于所述壳体内;所述中间壳体形成或连接于所述传动箱壳体。
在一些实施例中,所述第一散热部形成所述传动箱壳体。
在一些实施例中,所述传动箱壳体出风口之间设置隔热板,隔热板沿垂直与电机轴线方向延伸,隔热板与出风口之间设置有供气流通过的气流通道。
第六方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;传动机构,用于连接电机和输出机构;壳体,包括支撑输出机构的第一壳体和支撑传动机构的第二壳体,第一壳体形成或连接于第二壳体;还包括:前把手机构,连接在壳体的上,前把手机构包括:第一握持组件和安装组件,至少部分第一握持组件位于输出轴的上方;传动机构包括变向组件,变向组件包括:连接电机轴的锥齿轮轴、以锥齿轮轴为转轴旋转的第一锥齿轮和与第一锥齿轮啮合并连接输出轴的第二锥齿轮,第二锥齿轮绕第一轴线转动,锥齿轮轴的轴线位于第二锥齿轮的上方。
在一些实施例中,第一壳体包括第一端面,第一端面位于第一握持组件下方且位于安装组件前方,第一端面或第一端面的切面与电机轴线所在的平面的夹角大于等于30°。
在一些实施例中,第一端面或第一端面的切面与电机轴线所在的平面的夹角大于等于30°小于等于45°。
在一些实施例中,第一壳体和第二壳体中至少一个设置有第一安装面,第一安装面位于第一壳体上表面的下方,安装组件可拆卸安装于第一安装面上。
在一些实施例中,还包括,夹持机构,夹持机构与输出机构连接;夹持机构用于保持执行电动工具功能的执行部件;夹持机构包括连接于输出机构的卡盘部和用于夹持的夹持爪;第一握持组件的上表面至卡盘部的下表面的距离小于等于180mm。
在一些实施例中,传动机构还包括变速组件,变速组件包括行星轮组,行 星轮组连接电机和锥齿轮轴。
在一些实施例中,第一握持组件包括用于支撑手掌的第一支撑部和用于接收手指的第二支撑部,第二支撑部与第一端面形成收容手指的收容空间。
在一些实施例中,第二锥齿轮的啮合齿面朝向上方。
在一些实施例中,第二壳体至少部分位于第一握持组件的后方,第一握持组件的下表面与第二壳体的上表面基本位于同一水平面上。
第七方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;传动机构,用于连接电机和输出机构;壳体,包括支撑输出机构的第一壳体和支撑传动机构的第二壳体,第一壳体形成或连接于第二壳体;还包括:前把手机构,连接在壳体的上,前把手机构包括:第一握持组件和安装组件,至少部分第一握持组件位于输出轴的上方;第一壳体和第二壳体中的至少一个设置有第一安装面,第一安装面位于第一壳体上表面的下方,安装组件可拆卸安装于第一安装面上。
第八方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;传动机构,用于连接电机和输出机构;壳体,包括支撑输出机构的第一壳体和支撑传动机构的第二壳体,第一壳体形成或连接于第二壳体;还包括:前把手机构,其连接在壳体的上方并位于靠近输出轴的一侧;前把手机构包括第一握持组件和安装组件;其中,第一壳体位于第一握持组件下方且至少部分第一壳体位于安装组件前方;至少部分第二壳体位于第一握持组件的后方,第一握持组件的下表面基本与第二壳体的上表面平齐。
第九方面,本申请一实施例一种角向电动工具,包括:主机,其包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;能量源,用于为电机供电;壳体,用于收容电机并连接能量源;电动工具,还包括:挂持机构,用于将电动工具悬挂;挂持机构包括:挂持本体和安装件,其中,挂持本体包括靠近壳体的收纳状态和远离壳体的挂持状态,当挂持本体处于收纳状态时,挂持本体位于主机的左侧或者右侧。
在一些实施例中,挂持本体以第二轴线为转轴旋转,当挂钩本体处于收纳 状态时,挂钩本体沿左右方向的投影位于主机沿左右方向的投影内部。
在一些实施例中,能量源包括电池包,电池包具有长度方向、宽度方向和高度方向,电池包在长度方向上的尺寸大于电池包在宽度方向上的尺寸且大于电池包在高度方向上的尺寸,电池包的宽度方向与壳体的左右方向平行,电池包的长度方向与壳体的上下方向平行。
在一些实施例中,挂钩本体包括用于执行挂持功能的挂持部,当挂钩本体处于收纳状态和挂持状态时,挂持部沿左右方向的投影和电池包沿左右方向的投影在前后方向上部分交叠。
在一些实施例中,挂持机构设置在能量源与电机之间。
在一些实施例中,当挂钩本体处于收纳状态时,挂钩本体基本沿主机的轮廓延伸。
在一些实施例中,当挂持本体处于挂持状态且主机保持竖直方向且输出机构位于下方的姿态时,沿前后方向,挂持部的中点在主机的重心的后方,沿左右方向,挂持部的中至主机的重心的距离大于等于主机的重心至主机的侧端面的距离。
在一些实施例中,壳体包括握持部,安装件设置握持部下方。
在一些实施例中,角向电动工具还包括拆装附件,主机上连接有固定架,拆装附件可拆卸连接于固定架,固定架靠近安装件设置。
在一些实施例中,固定架连接于安装件上。
第十方面,本申请一实施例一种角向电动工具,包括:壳体;电机,至少部分设置在壳体内,电机包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;还包括:前把手机构,连接在壳体的上方并位于靠近输出轴的一侧;前把手机构包括第一握持组件;其中,第一握持组件包括用于支撑手掌的第一支撑部和用于接收手指的第二支撑部,第二支撑部与壳体之间设置有用于收容手指的容纳空间,第一支撑部至少部分覆盖软性材料,第二支撑部至少部分覆盖软性材料。
在一些实施例中,软性材料至少覆盖第一支撑部的80%。
在一些实施例中,软性材料至少覆盖第二支撑部的80%。
在一些实施例中,第一支撑部与第二支撑部的连接位置至少设置一个收容部,收容部由第二支撑部向第一支撑部方向延伸。
在一些实施例中,前把手机构,还包括安装组件,安装组件用于将前把手机构连接至壳体上。
在一些实施例中,前把手机构,还包括连接部,连接部将第一支撑部与安装组件连接,第二支撑部与第一支撑部连接。
在一些实施例中,第一支撑部的宽度大于连接部的宽度。
在一些实施例中,覆盖在第一支撑部上的软性材料上设置有第一镂空部,覆盖在第二支撑部上的软性材料上设置有第二镂空部。
在一些实施例中,第二支撑部的外轮廓线呈弧形。
第十一方面,本申请一实施例一种角向电动工具,包括:壳体;电机,至少部分设置在壳体内,电机包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;还包括:前把手机构,其连接在壳体的上方并位于靠近输出轴的一侧;前把手机构包括第一握持组件;其中,第一握持组件包括用于支撑手掌的第一支撑部和用于接收手指的第二支撑部,第二支撑部与壳体之间设置有用于收容手指的容纳空间,第一支撑部与第二支撑部的连接位置至少设置一个收容部,收容部由第二支撑部向第一支撑部方向延伸。
第十二方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;能量源,用于为电机供电;开关组件,用于控制电机,开关组件包括主开关,用于供用户控制电机的开启和转速,主开关包括供操作的扳机;壳体,包括握持部;握持部形成握持空间,扳机设于握持空间内;开关组件,还包括极速按钮,当极速按钮被触发时,使得电机处于设定的最大旋转速度,最大旋转速度大于通过按动扳机而能达到转速的最高值;极速按钮位于与扳机可单手同时操作的范围内。
在一些实施例中,当极速按钮被触发时,输出轴的最大转速大于等于1600RPM。
在一些实施例中,角向电动工具还包括传动机构,用于连接电机和输出机构,传动机构包括变速组件,变速组件传动连接电机轴和输出轴,变速组件包括输出第一传动比的第一状态和输出第二传动比的第二状态。
在一些实施例中,传动机构还包括切换组件,用于被操作以切换变速组件的第一状态和第二状态。
在一些实施例中,变速组件处于第一状态,输出轴的最大转速为第一输出转速,变速组件处于第二状态,输出轴的最大转速为第二输出转速;第一输出转速与第二输出转速的差值大于等于1100。
在一些实施例中,当极速按钮被触发时,变速组件处于第一状态,输出轴的最大转速为第一输出转速,变速组件处于第二状态,输出轴的最大转速为第二输出转速,当极速按钮未被触发时,输出轴的最大转速为第三输出转速,变速组件处于第二状态,输出轴的最大转速为第四输出转速,第三输出转速小于第一输出转速,第四输出转速小于第二输出转速。
在一些实施例中,极速按钮设置在握持空间外侧。
在一些实施例中,极速按钮设置在扳机的前方,沿前后方向,极速按钮的前端至扳机前端的距离小于等于77mm。
第十三方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;能量源,用于为电机供电;开关组件,用于控制电机,开关组件包括主开关,其用于供用户控制电机的开启和转速,主开关包括供操作的扳机;壳体,包括握持部;握持部形成握持空间,扳机设于握持空间内;开关组件,还包括极速按钮,当极速按钮被触发时,使得电机处于设定的最大旋转速度,该最大旋转速度大于通过按动扳机而能达到转速的最高值。
第十四方面,本申请一实施例一种角向电动工具,包括:电机,包括绕电机轴线转动的电机轴;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;能量源,用于为电机供电;开关组件,用于控制电机,开关组件包括主开关,其用于供用户控制电机的开启和转速,主开关包括供操作的扳机;壳体,包括握持部;握持部形成握持空间,扳机设于握持空间内;开关组件,还包括极速按钮,当极速按钮被触发时,使得电机处于设定的最大旋转速度,最大旋转速度大于通过按动扳机而能达到转速的最高值;极速按钮的边缘至扳机最靠近极速按钮的边缘的距离小于等于77mm。
第十五方面,本申请一实施例一种角钻,包括:电机,包括绕电机轴线转动的电机轴;能量源,用于为电机供电;输出机构,包括以第一轴线为轴旋转的输出轴,输出轴被电机驱动并且第一轴线与电机轴线相交;壳体,包括握持部;夹持机构,夹持机构与输出轴连接,用于保持执行电动工具功能的执行部 件;夹持机构包括连接于输出轴的卡盘部和用于夹持的夹持爪;还包括,照明机构,包括第一照明元件和第二照明元件,其中,第一照明元件位于壳体的下表面,第一照明元件倾斜设置,以照射夹持机构的下方和前方;第二照明元件的照射方向与第一轴线平行,以照射夹持机构的下方。
在一些实施例中,第二照明元件设置卡盘部与壳体之间。
附图说明
图1是本申请中的第一实施例的结构图;
图2是图1的剖视图的示意图;
图3是图1的中部分部件的结构图的示意图;
图4是图1的中部分部件另一个视角的结构图的示意图;
图5是图4的部分剖视图的示意图,示出传动箱壳体的结构;
图6是图4的部分剖视图的示意图,示出传动箱壳体内部的结构;
图7是图2的剖视图的一部分;
图8是图1的部分部件的结构图的示意图;
图9是图2的剖视图的一部分;
图10是本申请中的第一实施例悬挂姿态时的示意图,挂钩本体为收纳状态;
图11是本申请中的第一实施例悬挂姿态时的示意图,挂钩本体为挂持状态;
图12是图1的部分部件的结构图的示意图,挂钩本体为收纳状态。
具体实施方式
在详细解释本申请的任何实施方式之前,应当理解,本申请不限于其应用到以下描述中阐述的或以上附图中所示的结构细节和组件布置。
在本申请中,术语“包括”、“包含”、“具有”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
在本申请中,术语“和/或”,是一种描述关联对象的关联关系,表示可以存在三种关系。例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独 存在B这三种情况。另外,本申请中字符“/”,一般表示前后关联对象是一种“和/或”的关系。
本申请中,术语“连接”、“结合”、“耦合”、“安装”可以是直接连接、结合、耦合或安装,也可以是间接连接、结合、耦合或安装。其中,进行举例示范,直接连接指的是两个零件或组件之间不需设置中间件而连接在一起,间接连接指的是两个零件或组件分别与至少一个中间件连接,这两个零件或组件通过中间件实现连接。此外,“连接”和“耦合”不限于物理或机械连接或耦合,并且可以包括电连接或耦合。
在本申请中,本领域普通技术人员将理解,结合数量或条件使用的相对术语(例如,“约”,“大约”,“基本”等)为包括所述值并且具有上下文所指示的含义。例如,该相对术语至少包括与特定值的测量相关的误差程度,与特定值相关的由制造,组装,使用造成的公差等。这种术语也应被视为公开了由两个端点的绝对值限定的范围。相对术语可指代所指示的值的一定百分比(例如1%,5%,10%或更多)的加或减。未采用相对术语的数值,也应该被揭示为具有公差的特定值。此外,“基本”在表达相对的角度位置关系时(例如,基本平行,基本垂直),可指代在所指示的角度的基础上加或减一定度数(例如1度,5度,10度或更多)。
在本申请中,本领域普通技术人员将理解,由组件执行的功能可以为由一个组件,多个组件,一个零件,或多个零件执行。同样的,由零件执行的功能也可以由一个零件,一个组件,或多个零件组合来执行。
在本申请中,术语“上”、“下”、“左”、“右”、“前”、“后”等方位词是以附图所示的方位和位置关系来进行描述的,不应理解为对本申请实施例的限定。此外,在上下文中,还需要理解的是,当提到一个元件连接在另一个元件“上”或者“下”时,其不仅能够直接连接在另一个元件“上”或者“下”,也可以通过中间元件间接连接在另一个元件“上”或者“下”。还应当理解的,上侧、下侧、左侧、右侧、前侧、后侧等方位词不仅代表正方位,也可以理解为侧方位。例如,下方可以包括正下方、左下方、右下方、前下方以及后下方等。
在本申请中,术语“控制器”、“处理器”、“中央处理器”、“CPU”、“MCU”可以互换。在使用单元“控制器”、“处理器”、“中央处理器”、“CPU”、或“MCU”来执行特定功能,除非另有说明,否则这些功能则可以由单个上述单 元或多个上述单元来执行。
在本申请中,术语“装置”、“模块”或“单元”为了实现特定的功能,它们可以通过硬件或软件的形式来实现。
在本申请中,术语“计算”、“判断”、“控制”、“确定”、“识别”等指的是计算机系统或类似电子计算设备(例如,控制器,处理器等)的操作和过程。
为了清楚的说明本申请的技术方案,在说明书附图中定义上侧、下侧、左侧、右侧、前侧和后侧。
如图1示出了本申请的角向电动工具,在本实施例中,以角钻100为例,在其他可替换实施例中,该电动工具可安装不同的执行部件,如螺丝批、套筒、磨片。通过这些不同的执行部件使得角向电动工具可以为例如,角向的螺丝批或者扳手、角磨。
如图1至图2示出了本申请的角钻100,角钻100包括主机1和附件。主机1包括壳体11、电机12、输出机构15、传动机构13和能量源19。其中,能量源19用于为角钻100提供电能。能量源19包括直流电源或交流电源。在一些实施例中,能量源19包括直流电源,在本实施例中,能量源19为电池包,后续描述,将用电池包19代替能量源,但并不能作为对本申请的限制。电池包19配合相应的电源电路,为角钻100内的相应部件供电。在本实施例中,能量源并不限于使用电池包19的场景,还可通过市电、交流电源或为市电和电池包混合,配合相应的整流、滤波和调压电路,实现对各电路元件的供电。
附件包括:挂持机构31、拆装附件32和副把手机构33。其中,副把手机构33用于承受从输出机构15传递的反作用力,应用可徒手拆卸的结构连接在主机1的前方的侧面。在本实施例中,副把手机构33采用螺纹结构连接在主机1的前方。可选的,副把手机构33即可以安装在左侧,也可以安装在右侧,以方便使用者双手均可以操作。副把手机构33一般在大负载使用工况时使用。
在本实施例中,电机12、传动机构13和输出机构15分别至少部分被容纳在壳体11中。壳体11还形成或连接有一供用户操作的握持部115。握持部115呈环型或D型。在本实施例中,握持部115位于主机1的偏后部,方便用户握持及操作。握持部115的一端连接有电池包19。电池包19可拆卸地连接至握持部115。
电机12包括能够以电机轴线102为轴转动的电机轴121。输出机构15包括以第一轴线101为轴旋转的输出轴151。输出轴151用于输出动力。在本实施例中, 第一轴线101与所述电机轴线102相交。在本实施例中,第一轴线101与电机轴线102正交。在其他可替换实施例中,第一轴线101与电机轴线102呈其他角度相交。在本实施例中,壳体11的长度沿电机轴线102方向延伸,即壳体11的前后方向与电机轴线102方向平行或重合。
传动机构13设置在电机12和输出机构15之间,用于在电机12和输出轴151之间实现动力的传递。传动机构13具有以不同的最高转速进行输出的多种传动档位。
主机1还包括夹持机构16,用于保持执行电动工具的功能的执行部件。夹持机构16连接在输出轴151伸出壳体11的一端上。夹持机构16可在实现不同功能时夹持相应的执行部件,例如螺丝批、钻头、套筒、磨削类附件等。
电机12为无刷电机。因此,主机1还包括控制机构17,用于控制电机12。在本实施例中,控制机构17包括控制板171,在一实施例中,控制板171为PCBA组件。在本实施例中,电机12为内转子无刷电机。
壳体11包括第一壳体111、第二壳体112、第三壳体113和上述的握持部115。其中,第一壳体111用于支撑输出机构15,输出机构15部分位于第一壳体111中,部分伸出第一壳体111。第二壳体112支撑的传动机构13。传动机构13至少部分被收容于第二壳体112中。第三壳体113用于支撑电机12。电机12至少部分被收容于第三壳体113中。在本实施例中,第一壳体111、第二壳体112、第三壳体113和握持部115沿电机轴线102方向依次连接。即是说,第一壳体111、第二壳体112、第三壳体113和握持部115沿从前至后的方向依次连接。其中,第一壳体111与第二壳体112相互连接或为一体成型结构。第二壳体112与第三壳体113连接。第三壳体113与握持部115连接。第一壳体111、第二壳体112、第三壳体113和握持部115分别为基本呈柱型或包围状态的壳体11结构,即壳体11将壳体11内的部件以包围的状态进行收容。为了制造和装配的方便性,第一壳体111、第二壳体112、第三壳体113和握持部115在左右或上下方向形成两个或多个蛤壳式结构,通过蛤壳式结构的连接形成一个基本呈柱型结构。
如图3所示,第一壳体111与第二壳体112形成第一容纳空间112a,传动机构被收容于第一容纳空间112a中。如图5-7所示,传动机构13包括:传动箱壳体131、变速组件132和变向组件134。传动箱壳体131的整体外轮廓与第一容纳空间112a的内侧壁相适应。传动箱壳体131至少包括两种不同密度材料,传动箱壳体131的平均密度小于等于2.5g/cm3。进而减轻了传动箱壳体的重量。
角钻的输出功率与角钻的重量的比值大于等于215W/kg。输出轴151的输出扭矩在大于等于10N·m时,角钻的输出功率与角钻的重量的比值大于等于220W/kg。在一些实施例中,输出轴151的输出扭矩在大于等于10N·m小于等于20N·m时,角钻的输出功率与角钻的重量的比值大于等于220W/kg。在一些实施例中,输出轴151的输出扭矩在大于等于10N·m时,角钻的输出功率与角钻的重量的比值大于等于250W/kg。
在相关技术中,在提高产品性能时,一般会采用提高电机性能的方式,这样不仅会增加成本,同时会使产品的重量增加。而角钻本身在相关技术中,角钻的普遍重量在7kg以上,对于手持式工具来说,再此基础上再增加整机重量对于操作者来说,使用的疲劳感会很强。所以在保证现有的电机性能、电池续航能力的前提下,利用使用至少两种不同密度材料的传动箱壳体,来减轻传动箱壳体的重量,进而减轻角钻的整机重量,提高了角钻的输出功率与角钻的重量的比值,在保证输出轴的扭矩的情况下,角钻整机的功率密度大于等于220W/kg,提升的角钻的性能,另一方面还提高了操作者的用户体验。
在本实施例中,输出轴的输出扭矩在大于等于10N·m小于等于20N·m时,角钻的输出功率大于等于1250W。在一些实施例中,在输出轴的输出扭矩在大于等于10N·m小于等于20N·m时,角钻的输出功率大于等于1500W。在本实施例中,输出轴的扭矩在大于等于10N·m小于等于15N·m时,角钻的输出功率大于等于1250W小于等于1700W。在一些实施例中,输出轴的输出扭矩在小于等于15N·m时,角钻的输出功率大于等于1500W,保证角钻的工作性能高。
保证了产品的高输出扭矩和高输出功率,保证了角钻工作的高性能。另一方面,在本实施例中,能量源包括至少一个电池包19,以使本实施例中的角钻100为无绳可充电式工具,使用更加方便。在本实施例中,电池包19提供24V的额定电压。在其他替换实施例中,电池包19的额定电压可以为18V,或者电池包19的额定电压大于24V,例如56V等。在本实施例中,角钻100的输出扭矩在大于等于70N·m。
当角钻在拆除电池包19后,角钻100的重量小于等于6.0kg。即是说,角钻的裸机重量小于等于6kg,在保证了高性能的情况下,裸机重量减轻。在本实施例中,使用标称电压为24V,容量为10Ah的电池包时,角钻的整机重量小于等于7.0kg。本申请在提高功率密度方面,并不依赖降低电池包重量,而是通过真正的减轻裸机重量并保证了高输出功率来提高功率密度。
在一些实施例中,角钻的裸机重量小于等于5kg。提高了操作者的用户体验。
在相关技术中,传动箱壳体使用铝材料制成。在本实施例中,传动箱壳体131包括第一密度的主体部131a和第二密度的支撑部131b,其中,第一密度大于第二密度,即是说,主体部131a的密度大于支撑部131b的密度。为保证传动箱壳体131对于变速组件132和变向组件134的支撑作用,至少部分主体部131a由金属材料制成,第一密度小于等于2.5g/cm3大于等于1.5g/cm3。在本实施例中,主体部131a或至少部分主体部131a由镁合金制成。主体部131a还包括减重结构。减重结构包括:减薄部1313和/或镂空部(图中未示出)。其中,减薄部1313壁厚减少或形成一个凹槽,支撑部131b形成或连接于减薄部1313,以使传动箱壳体131的整体外轮廓与壳体11相适应。镂空部(图中未示出)的壁厚缺少部分支撑部131b填充其中,以使传动箱壳体131的整体外轮廓与壳体11相适应。支撑部131b的第二密度小于等于2.0g/cm3大于等于1.0g/cm3。在本实施例中,支撑部131b为塑料材料制成。
在本实施例中,主体部131a包括第一主体件1311和第二主体件1312,其中,第一主体件1311靠近电机12,第二主体件1312靠近输出机构15。在本实施例中,输出机构15部分位于第二主体件1312内。第一主体件1311和第二主体件1312通过沿电机轴线102方向设置的螺钉连接。
变速组件132包括:太阳轮132a、行星轮组132b和切换组件133。太阳轮132a和电机轴121连接并被电机12驱动旋转。行星轮组132b包括第一行星轮组和第二行星轮组。每一行星轮组包括多个行星轮、行星轮架和内齿圈。其中,第一行星轮1321被设置为与太阳轮132a啮合。第一级内齿圈1322与第一行星轮1321啮合。多个第一行星轮1321被设置分别与太阳轮132a啮合。电机12通过太阳轮132a驱动第一行星轮1321转动。第一级内齿圈1322被设置在第一主体件1311内并不发生旋转运动。第一行星轮架1323借助第一支承销1324对第一行星轮1321分别进行支承。第二级内齿圈1326与第二行星轮1325啮合。第二级内齿圈1326被设置在第二主体件1312内。第二行星轮架1327借助第二支承销1328对第二行星轮1325分别进行支承。
变速组件132还包括中间轴132c,中间轴132c的后端与第一行星轮架1323的轴心连接。中间轴132c的前端形成或连接有啮合齿,且多个第二行星轮1325被设置都与中间轴132c的前端啮合。
变向组件134包括:第一锥齿轮组和第二锥齿轮组,其中,行星轮组132b连 接电机12和第一锥齿轮组,第二锥齿轮组连接第一锥齿轮组和输出机构15。第一锥齿轮组包括锥齿轮轴1341和第一锥齿轮1342,锥齿轮轴1341为第一锥齿轮1342的旋转轴。第二锥齿轮组包括与第一锥齿轮1342啮合的第二锥齿轮1343。锥齿轮轴1341与第二行星轮架1327结合,锥齿轮轴1341以与中间轴132c同轴的方式被轴承支撑。即是说,锥齿轮轴1341、中间轴132c分别与电机轴121同轴或平行。其中,第二级内齿圈1326及变向组件134设置在第二主体件1312内。
第一行星轮1321的第一支承销1324将第一行星轮架1323贯通,并向前方突出。在第一支承销1324上连接有第一调速环132d,第一调速环132d能够沿前后方向滑动。第一调速环132d在第一位置和第二位置间滑动。其中,如图5-7所示,第一调速环132d位于第一位置时,第一调速环132d与第一行星轮架1323及中间轴132c卡合而一体旋转。第一调速环132d位于第二位置时,第一调速环132d离开第一行星轮架1323及中间轴132c。切换组件133设置在主体部131a下方。切换组件133包括速度切换部1331和拨片1332。拨片1332连接速度切换部1331和第一调速环132d。通过旋转速度切换部1331来切换该第一调速环132d的前后位置。
第二支承销1328将第二行星轮1325贯通,并向后方突出。第二级内齿圈1326上设置有第二调速环132f,第二调速环132f设置在第二支承销1328的后端。该第二调速环132f供第二位置处的第一调速环132d在旋转方向上卡合。
在本实施例中,在第一调速环132d的第一位置处,由第一行星轮1321减速后的第一行星轮架1323的旋转借助中间轴132c而传递至第二行星轮1325。而且,使第二行星轮架1327减速并旋转。此时,锥齿轮轴1341两阶段被减速输出第一传动比,而进行低速旋转(第一状态)。另一方面,在第一调速环132d的第二位置处,由第一行星轮1321减速后的第一行星轮架1323的旋转借助第一支承销1324以及第一调速环132d而传递至第二调速环132f。而且,通过第二支承销1328使第二行星轮架1327旋转。因此,锥齿轮轴1341由于被取消了第二级减速输出第二传动而进行高速旋转(第二状态)。第二级内齿圈1326以可旋转的方式设置于第二主体部131a内。在第二级内齿圈1326的前方且在主体部131a内设置有扭力限制器。用于当输出轴传递到传动机构上的扭力超过角钻的被设定的输出阈值时,限制通过传动机构驱动输出轴。扭力限制器包括:扭力调节机构,用于被操作而设置角钻100被设定的输出阈值。在本实施例中,此输出阈值为用户不可调节,即是说,此输出阈值的设定需要由制造商或专业维修人员进行设定,以保证使用安全。当角钻100进行操作时,角钻100向被操作工件输出扭力,当 受到的被操作工件的反向作用力超过输出扭力的最大值时,扭力限制器限制传动机构继续驱动输出轴来输出扭力,进而将角钻100的输出扭力限制在一个适当的扭力范围内。
在本实施例中,锥齿轮轴1341被配置为沿长度方向的中空结构,可以进一步减轻产品重量。
如图3至图4及图7所示,主机还包括前把手机构14。在操作者使用时,一只手握持握持部115,另一只手握持前把手机构14,以使角钻100被稳定握持及操作。前把手机构14连接在壳体11的上方并至少部分前把手机构14位于输出轴151上方。
其中,前把手机构14包括第一握持组件14a和安装组件14b。第一握持组件14a包括:用于支撑手掌的第一支撑部141和用于接收手指的第二支撑部142。第二支撑部142与壳体11之间设置有用于收容手指的容纳空间。第一支撑部141至少部分覆盖软性材料143,第二支撑部142至少部分覆盖软性材料143。第一支撑部141和第二支撑部142为承受操作者的施力强度,使用硬质材料。包括硬质塑料和金属材料。在硬质材料上覆盖部分软性材料143以使得操作者使用时握持更舒适。
在本实施例中,第一握持组件14a的头部,即是第一支撑部141和第二支撑部142构成符合人体工程学的弯曲鞍形结构,没有任何尖角或边缘,更适合手的握持方式。在左右方向上的第二支撑部142的外轮廓线呈弧形。不设置筋位或凹槽降低了制造难度。而在本实施例中,软性材料143至少覆盖所述第一支撑部141的80%。软性材料143至少覆盖所述第二支撑部142的80%。软性材料143包括橡胶、硅胶等。覆盖在第一支撑部141上的软性材料143上设置有第一镂空部1411,覆盖在第二支撑部142上的软性材料143上设置有第二镂空部1421。第一镂空部1411和第二镂空部1421裸露出第一支撑部141和第二支撑部142的硬质材料,方便操作者定位。
第一支撑部141与第二支撑部142的连接位置至少设置一个收容部1422,收容部1422由第二支撑部142向第一支撑部141方向延伸。在本实施例中,操作者握持时,设置凹陷的收容部1422可以将使操作者的手指收容,方便操作者施力。
安装组件14b用于将前把手机构14连接至壳体11上。前把手机构14还包括连接部144,连接部144将第一支撑部141与安装组件14b连接。而第二支撑部142与第一支撑部141连接。第一支撑部141的宽度大于连接部144的宽度。在本实施例 中,在左右方向上的连接部144与第一支撑部141的外轮廓线光顺连接。本申请的前把手机构14更符合人机工程学,操作者握持更加舒适。
前把手机构14的安装后,第一壳体111位于第一握持组件14a下方且至少部分位于安装组件14b前方。第一壳体111包括:第一握持组件14a下方且位于安装组件14b前方的第一端面111a,第一端面111a与第二支撑部142形成有用于收容手指的容纳空间。在沿垂直与第一轴线101和电机轴线102的方向,第一端面111a的投影或第一端面的切面的投影与电机轴线102的投影的夹角α大于等于30°。在本实施例中,第一端面111a为斜直面,所以夹角α为第一端面111a的投影与电机轴线102的投影的夹角。在一些实施例中,第一端面111a为弧形面或曲线面时,夹角α为第一端面111a的切面的投影与电机轴线102的投影的夹角。在一些实施例中,第一端面111a的投影或第一端面的切面的投影与电机轴线102的投影的夹角α大于等于30°小于等于45°。
第一壳体111和第二壳体112中至少一个设置有第一安装面112b,第一安装面112b位于第一壳体111上表面的下方,安装组件14b可拆卸安装于第一安装面112b上。第二壳体112至少部分位于第一握持组件14a的后方,第一握持组件14a的下表面基本与第二壳体112的上表面平齐。在本实施例中,第一壳体111与第二壳体112连接或一体成型,在第一壳体111与第二壳体112连接或结合处形成一个台阶或凹槽。第一安装面112b为台阶或凹槽的最低面。在本实施例中,前把手机构14以嵌入壳体11的方式安装在壳体11上。一方面增加了收容手指的容纳空间,操作者使用更舒适。第一壳体111的前端降低,适合角钻100在狭窄空间内使用。在本实施例中,第一端面111a的前后方向上延伸至安装组件14b的边缘,在本实施例中,第一壳体111位于第一握持组件14a下方部分为锥形,以使得收容手指的容纳空间进一步的增大。
上述的第二锥齿轮组中的第二锥齿轮1343连接在输出轴151上,即是说,第二锥齿轮1343以第一轴线101为轴旋转。在本实施例中,第二锥齿轮1343套设在输出轴151上。在本实施例中,锥齿轮轴1341的轴线位于第二锥齿轮1343的上方。在本实施例中,第二锥齿轮1343的啮合齿面朝向上方。以保证了第一端面111a与电机轴线102的夹角。
夹持机构16包括:连接于输出机构15的卡盘部161和用于夹持的夹持爪162。在本实施例中,卡盘部161连接在输出轴151上。第一握持组件14a的上表面至卡盘部161的下表面的距离H小于等于180mm。降低了角钻前部的尺寸,适合狭窄空 间使用。
在本实施例中,沿垂直于第一轴线101方向设置有输出轴盖152,输出轴盖152内设置有轴承以支撑输出轴151。轴承为端面轴承153支撑第二锥齿轮1343的下端面。端面轴承153对第二锥齿轮1343进行轴向限位。第二锥齿轮1343的上端面安装有波形弹垫154,调整第二锥齿轮1343的侧隙。降低安装衬套155的轴向精度要求,降低成本。安装衬套155及波形弹垫154安装卡簧,以对输出轴151进行轴向限位。在一些实施例中,输出轴盖设置有螺纹连接结构,第二主体件配合设置有螺纹连接结构,取消螺钉固定,使得角钻的第一壳体的沿第一轴线方向的直径缩小。更易于狭窄空间作业。
如图2和图8-9所示,电机轴121还驱动散热用的风扇122。风扇122设置在电机12与传动机构13之间。即是说,风扇122设置在电机12前方。壳体11,包括:进风口,能在风扇122转动时使气流进入壳体11。出风口119,能在风扇122转动时使气流排出壳体11。进风口包括第一进风口117和第二进风口118。第二进风口118设置在第一进风口117与出风口119之间。出风口119设置在传动机构13后部。当电机12驱动所述风扇122转动时,由第一进风口117进入、由出风口119排出的第一气流依次流经控制机构17和电机12。由第二进风口118进入、由出风口119排出的第二气流流过至少部分传动机构13。以使第一气流依次为控制机构17和电机12散热,第二气流为传动机构13散热,通过散热回路的合理布置改善散热效率,实现了电动工具散热效率高。
壳体11还包括中间壳体114,中间壳体114设置在电机12与输出机构15之间。在本实施例中,中间壳体114设置在第二壳体112与第三壳体113之间。中间壳体114包括由散热材料制成的第一散热部114a,出风口119至少部分设置在第一散热部114a内。将出风口119开设在第一散热部114a内,增加散热效率。在在本实施例中,第一散热部114a由金属制成。中间壳体114形成或连接于所述传动箱壳体131。中间壳体114包括环绕电机轴线102且沿电机轴线102方向延伸的第一中间壳体1141和垂直于电机轴线102的第二中间壳体1142。其中,第一散热部114a设置在第一中间壳体1141。第二中间壳体1142设置在传动箱壳体131后端,第二中间壳体1142通过轴承支撑电机轴121。
握持部115设置在电机12后方,握持部115内部形成有容纳空间,第一进风口117设置在握持部115的下部。控制机构17设置在容纳空间内。在本实施例中,握持部115包括前端部1151、后端部1152、上端部1153和下端部1154。前端部 1151、后端部1152、上端部1153和下端部1154分别为中空结构,相互连通。前端部1151、后端部1152、上端部1153和下端部1154围合形成握持空间。后端部1152设置有结合部116,结合部116可拆卸连接电池包19。上端部1153供操作者握持操作。前端部1151与第三壳体113连接,其中,电机12至少部分被收容与前端部1151内。控制板171被收容于前端部1151内且控制板171与电机轴线102倾斜设置。在一实施例中,电机轴线102穿过控制板171的板面,控制板171向前倾斜。第一进风口117设置在下端部1154的下表面上。构造成使得内部(控制板171)不从正下方暴露。
传动机构13与出风口119之间设置隔热板124,隔热板124沿垂直于电机轴线102方向延伸,隔热板124与出风口119之间设置有供气流通过的气流通道1241,隔热板124避免第一气流造成第二中间壳体1142的温度升高。而电机12外部套设有机筒123,机筒123在前端和后端分别设置有散热孔,以使第一气流进入机筒123中为电机12散热。第二进风口118设置在机筒123外侧。因此第二气流由机筒123外侧进入壳体11后,流过第二中间壳体1142为传动机构13散热后由出风口119流出。
在本实施例中,当电机12驱动风扇122转动时,会生成两条散热气流。其中,第一气流由位于握持部115下端部1154的下表面的第一进风口117进入,流经控制板171,再由机筒123在前端和后端分别设置有散热孔流入和流出散热电机12后由出风口119流出。由于出风口119设置在传动箱壳体上,所以第一气流也会流过传动箱壳体,但由于第一气流已经流经了控制板171和电机12,带有了控制板171和电机12的热量,所以对于传动箱壳体的散热效果并不显著。第二气流由位于机筒123外侧第二进风口118进入,由机筒123外侧通过隔热板124与出风口119之间气流通道1241,流经第二中间壳体1142,由于第二中间壳体1142形成或连接于传动箱壳体131,进而第二气流为传动箱壳体131散热。由于第二气流仅通过机筒外侧,相当于由第二进风口118进入的散热气流仅经过传动箱壳体131。第二气流专门为传动箱壳体131散热,进而降低传动机构13的热量后由出风口119流出。
主机还包括开关组件172,用于控制电机12。开关组件172包括主开关1721和极速按钮1723。主开关1721用于供用户控制电机12的开启和转速,主开关1721包括供操作的扳机1722。极速按钮1723连接集成开关,例如薄膜开关。主1721开关和极速按钮1723的薄膜开关与控制板171连接。
当极速按钮1723被触发时,使得电机12处于设定的最大旋转速度,该最大旋转速度大于通过按动扳机1722而能达到转速的最高值。极速按钮1723位于与扳机1722可单手同时操作的范围内。“可单手同时操作的范围”为:操作者握持并可以向扳机1722施加操作力时或后,极速按钮1723在同一只手的至少手指可以触及到并施加操作力的范围。
在本实施例中,扳机1722设置在握持部115上端部1153的下方。操作者通过四指由下向上扳动扳机1722,而极速按钮1723设置在操作者至少拇指可操作的位置。扳机1722设置握持空间之内,极速按钮1723设置在握持空间外侧。在一实施例中,极速按钮1723设置在握持部115的上表面。极速按钮1723设置在扳机1722的前方,沿前后方向,极速按钮1723的前端至扳机1722前端的距离L1小于等于77mm。沿前后方向,极速按钮1723的长度L2大于等于20mm小于等于30mm。在相关技术公开了操作者通过按压扳机1722的程度可以调节电机12转速,在此不再赘述。
当极速按钮1723被触发时,变速组件132处于第一状态,输出轴151的最大转速为第一输出转速,变速组件132处于第二状态,输出轴151的最大转速为第二输出转速。第一输出转速与第二输出转速的差值大于等于1100。当极速按钮1723被触发时,输出轴151的最大转速大于等于1600RPM。以使得角钻100的速度可调的范围增加。当极速按钮1723未被触发时,变速组件132处于第一状态,输出轴151的最大转速为第三输出转速,变速组件132处于第二状态,输出轴151的最大转速为第四输出转速,第三输出转速小于第一输出转速,第四输出转速小于第二输出转速。在本实施例中,极速按钮1723未被触发时,输出轴151转速范围为大于等于400RPM且小于等于1400RPM;极速按钮1723被触发时,输出轴151转速范围为大于等于490RPM且小于等于1700RPM。通过设置极速按钮1723,使角钻100的可调模式增加。适应更多工况。
如图1-2所示,主体1还包括:照明机构。照明机构包括第一照明元件181和第二照明元件182。其中,第一照明元件181位于壳体11的下表面,第一照明元件181倾斜设置,以照射夹持机构16的下方和前方;第二照明元件182的照射方向与第一轴线101平行,以照射夹持机构16的下方。通过设置两处照明使得亮度更高,同时由于角钻100的执行部件包括大直径筒式钻头,所以与第一轴线101平行的照明会被遮挡。设置两处照明有利于多种工况下的角钻100的使用。
如图10所示,在本实施例中,第二照明元件182包括多个LED灯珠1821。多 个LED灯珠1821环绕第一轴线101构成环状。多个LED灯珠1821的中心连线为以第一轴线101为圆心的圆形,此圆形的直径D大于等于100mm。
为减轻阴影,前后方向,设定电机轴线102方向为X轴方向,左右方向上,垂直于电机轴线102方向的Y轴方向,多个LED灯珠1821分别设置在X轴与Y轴之外。
在本实施例中,多个LED灯珠1821安装在灯板上,灯板设置在第一壳体111的下端与夹持机构16的卡盘部161之间。第二照明元件182包括导线,导线电耦合能量源为LED灯供电。导线由灯板经过第二主体件1312连接至第二壳体112部与第一主体件1311之间。由中间壳体114、第三壳体113上部进入握持部115后连接至控制板171上。在本实施例中,导线经过主体部131a的减重结构,导线外套设软胶套。合理设置导线路径,防止导线与风扇122和进风口和出风口119干涉。
第一照明元件181由导线电耦合到控制板171。第一照明元件181包括LED灯。在本实施例中,第一照明元件181安装在握持部115前端部1151的下方,在一实施例中,第一照明元件181设置在控制板171前方,电机12的后方。第一照明元件181设置在电机轴线102下方,并且第一照明元件181的安装面位于握持部115的前表面上,以使减少损坏的可能。另一方面此表面的出光角度更有利于照明。
如图8-图12所示,结合部116还形成有用于导向电池包19沿第一直线103方向结合至壳体11的导向结构1161。其中,电池包19结合至壳体11的第一直线103方向垂直于电机轴线102。
电池包19具有长度方向F1、宽度方向F2和高度方向F3,电池包19在长度方向F1上的尺寸大于电池包19在宽度方向F2上的尺寸且大于电池包19在高度方向F3上的尺寸;其中,电池包19的长度方向F1平行于第一直线103方向。即是说,电池包19的宽度方向F2与壳体11的左右方向平行,电池包19的长度方向F1与壳体11的上下方向平行。这样,可以避免电池包19在长度方向F1的尺寸对操作者的操作造成干涉,也即是说,在电池包19结合至壳体11上后,尺寸相对较小的宽度方向F2沿左右方向设置,这样因为电池包19在宽度方向F2的尺寸相对较小。
在安装电池包19的状态下,角钻100的重心位置G位于壳体11的轴向中心处略微向后的位置,从而在前后方向上保持平衡,当工人用一只手握持在握持部115上端部1153并用另一个手前把手机构14时,可操作性极佳。
如图10-11所示,角钻100的挂持机构31用于将角钻100保持竖直方向且输出机构15位于下方的姿态悬挂。如图12所示,挂持机构31包括挂持本体311和安装 件312。其中,挂持本体311以第二轴线104为转轴旋转,挂持本体311包括靠近壳体11的收纳状态和远离壳体11的挂持状态。如图10和图12所示,当挂持本体311处于收纳状态时,挂持本体311至少部分位于主机1的左侧或者右侧。在本实施例中,电池包19沿上下方向插拔,挂持本体311收纳至左侧或右侧,避免与电池包19的安装和拆卸路径干涉。另一方面,角钻100的上下方向的尺寸大于左右方向的尺寸。收纳时,将挂持本体311的所在平面设置在上下方向上,避免整机尺寸为覆盖挂持本体311而增加,符合产品紧凑性要求。
挂持机构31设置在电池包19与电机12之间。挂持本体311包括挂钩部3111和连接杆3112。挂钩部3111用于执行挂持功能的,基本呈C型。连接杆3112连接挂钩部3111与安装件312。连接杆3112与安装件312旋转连接。安装件312连接在握持部下端部1154上。在本实施例中,安装件312通过紧固件安装在握持部115下端部1154的侧表面。在其他可替换实施例中,安装件312通过紧固件安装在握持部115下端部1154的下表面或上表面。在本实施例中,挂持本体311整体沿前后方向向后延伸,挂钩部3111延伸至电池包19的侧面。在一实施例中,挂持本体311处于收纳状态时,挂持本体311基本沿主机1的轮廓延伸,在一实施例中,为保持角钻100整机的整体形状,连接杆3112保持与壳体11外轮廓相配合的弯折。当挂持本体311处于收纳状态和挂持状态时,挂钩部3111沿左右方向的投影和电池包19沿左右方向的投影在前后方向上至少部分交叠。在其他可替换实施例中,挂持本体整体沿前后方向向前延伸,挂钩部延伸至电机的侧部,即是说,挂钩部延伸至第三壳体或握持部的前端部的侧部。挂持本体处于收纳状态时,满足挂持本体沿左右方向的投影位于主机1沿左右方向的投影内部。以避免挂持本体311对操作者的操作以及工件造成干涉。
如图11所示,当挂持本体311处于挂持状态时,沿前后方向,挂钩部3111的中点M在主机1的重心G的后方。沿左右方向,挂钩部3111的中点M至主机1的重心G的距离H1大于等于主机1的重心G至主机1的侧端面的距离H2。保证挂持稳定。在一些实施例中,H1小于等于2*H2。
拆装附件32用于锁紧和释放夹持机构16。主机1上连接有固定架331,拆装附件32可拆卸连接于固定架331,固定架331靠近安装件312设置。在一实施例中,固定架331安装在握持部115下端部1154。在本实施例中,安装件312通过紧固件安装在握持部115下端部1154的侧表面,固定架331通过紧固件安装在握持部115下端部1154的下表面。在其他可替换实施例中,安装件312与固定架331通过紧 固件安装在握持部115下端部1154的同一表面。在本实施例中,固定架331连接于安装件312上。符合产品紧凑性要求。
以上显示和描述了本申请的基本原理、主要特征和优点。本行业的技术人员应该了解,上述实施例不以任何形式限制本申请,凡采用等同替换或等效变换的方式所获得的技术方案,均落在本申请的保护范围内。

Claims (40)

  1. 一种角钻,包括:
    壳体;
    电机,至少部分设置在所述壳体内,所述电机包括绕电机轴线转动的电机轴;
    直流电源,用于给所述电机供电,所述直流电源可拆卸连接在所述壳体上;
    输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;
    传动机构,用于连接所述电机和所述输出机构;
    所述角钻对工件的输出扭矩大于等于10N·m时,所述角钻的输出功率与所述角钻的重量的比值大于等于220W/kg。
  2. 根据权利要求1所述的角钻,其中,所述角钻对工件的输出扭矩大于等于10N·m时,所述角钻的输出功率与所述角钻的重量的比值大于等于250W/kg。
  3. 根据权利要求1所述的角钻,其中,所述角钻对工件的输出扭矩大于等于10N·m且小于等于20N·m时,所述角钻的输出功率大于等于1250W。
  4. 根据权利要求3所述的角钻,其中,所述角钻对工件的输出扭矩大于等于10N·m且小于等于20N·m时,所述角钻的输出功率大于等于1500W。
  5. 根据权利要求1所述的角钻,其中,所述直流电源包括至少一个电池包。
  6. 根据权利要求1所述的角钻,其中,所述角钻在拆除所述直流电源后,所述角钻的重量小于等于6.0kg。
  7. 根据权利要求1所述的角钻,其中,所述传动机构包括传动箱壳体和变向组件;所述变向组件传动连接所述电机轴和所述输出轴,所述变向组件至少部分位于所述传动箱壳体中;所述传动箱壳体位于所述壳体内;其中,所述传动箱壳体包括至少两种不同密度材料。
  8. 根据权利要求7所述的角钻,其中,所述传动箱壳体的平均密度小于等于2.5g/cm3
  9. 根据权利要求8所述的角钻,其中,所述传动箱壳体包括第一密度的主体部和第二密度的支撑部,所述主体部用于支撑所述传动箱壳体的内部部件,所述第一密度大于所述第二密度。
  10. 根据权利要求9所述的角钻,其中,至少部分所述主体部由金属材料制成,所述第一密度小于等于2.5g/cm3大于等于1.5g/cm3
  11. 根据权利要求7所述的角钻,其中,所述传动箱壳体设置有减重结构。
  12. 根据权利要求1所述的角钻,还包括:
    风扇,被所述电机轴驱动;
    控制机构,用于控制所述电机;
    所述壳体,包括:
    第一进风口,在所述风扇转动时使气流进入所述壳体;
    第二进风口,在所述风扇转动时使气流进入所述壳体;
    出风口,在所述风扇转动时使气流排出所述壳体;
    其中,所述第二进风口设置在所述第一进风口与所述出风口之间;当所述风扇转动时,由所述第一进风口进入、由所述出风口排出的第一气流依次流经所述控制机构和所述电机;由所述第二进风口进入、由所述出风口排出的第二气流流过至少部分所述传动机构。
  13. 根据权利要求12所述角钻,其中,所述第二进风口相对于所述第一进风口靠近所述风扇设置,所述出风口设置在所述传动机构后部。
  14. 根据权利要求12所述角钻,其中,所述壳体包括设置在所述电机与所述输出机构之间的中间壳体,所述中间壳体包括由金属制成制成的第一散热部,所述出风口至少部分设置在所述第一散热部内。
  15. 根据权利要求12所述角钻,其中,所述壳体包括握持部,所述握持部呈环型,所述握持部内部形成有容纳空间,所述第一进风口设置在所述握持部的下部。
  16. 根据权利要求15所述角钻,其中,所述电机的外部套设有机筒,所述机筒在前端和后端分别设置有散热孔,以使所述第一气流进入机筒中为电机散热。
  17. 一种角钻,包括:
    壳体;
    电机,至少部分设置在所述壳体内,所述电机包括绕电机轴线转动的电机轴;
    直流电源,用于给所述电机供电,所述直流电源可拆卸连接在所述壳体上;
    输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;
    传动机构,用于连接所述电机和所述输出机构;
    所述角钻对工件的输出扭矩小于等于15N·m时,所述角钻的输出功率大于 等于1500W。
  18. 一种角钻,包括:
    壳体;
    电机,至少部分设置在所述壳体内,所述电机包括绕电机轴线转动的电机轴;
    直流电源,用于给所述电机供电,所述直流电源可拆卸连接在所述壳体上;所述直流电源的标称电压大于等于18V;
    输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;
    传动机构,用于连接所述电机和所述输出机构;所述角钻的输出功率与所述角钻的重量的比值大于等于215W/kg。
  19. 根据权利要求18所述角钻,其中,所述角钻在拆除所述直流电源后,所述角钻的重量小于等于6.0kg。
  20. 根据权利要求18所述角钻,其中,所述角钻对工件的输出扭矩大于或等于70N·m。
  21. 一种角向电动工具,包括:
    电机,包括绕电机轴线转动的电机轴;
    风扇,被所述电机轴驱动;
    输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;
    传动机构,用于连接所述电机和所述输出机构;
    控制机构,用于控制所述电机;
    壳体,其长度沿所述电机轴线方向延伸;
    所述壳体,包括:
    第一进风口,在所述风扇转动时使气流进入所述壳体;
    第二进风口,在所述风扇转动时使气流进入所述壳体;
    出风口,在所述风扇转动时使气流排出所述壳体;
    其中,所述第二进风口设置在所述第一进风口与所述出风口之间;当所述风扇转动时,由所述第一进风口进入、由所述出风口排出的第一气流依次流经所述控制机构和所述电机;由所述第二进风口进入、由所述出风口排出的第二气流流过至少部分所述传动机构。
  22. 根据权利要求21所述角向电动工具,其中,所述第二进风口相对于所述第一进风口靠近所述风扇设置。
  23. 根据权利要求21所述角向电动工具,其中,所述出风口设置在所述传动机构后部。
  24. 根据权利要求21所述角向电动工具,其中,所述壳体包括设置在所述电机与所述输出机构之间的中间壳体,所述中间壳体包括由金属制成制成的第一散热部,所述出风口至少部分设置在所述第一散热部内。
  25. 根据权利要求21所述角向电动工具,其中,所述壳体包括握持部,所述握持部呈环型,所述握持部内部形成有容纳空间。
  26. 根据权利要求25所述角向电动工具,其中,所述第一进风口设置在所述握持部的下部。
  27. 根据权利要求25所述角向电动工具,其中,所述握持部至少部分设置在所述电机后方,所述控制机构设置在所述电机后方。
  28. 根据权利要求26所述角向电动工具,其中,所述电机的外部套设有机筒,所述机筒在前端和后端分别设置有散热孔,以使所述第一气流进入机筒中为电机散热。
  29. 根据权利要求28所述角向电动工具,其中,所述第二进风口设置在所述机筒外侧。
  30. 根据权利要求21所述角向电动工具,其中,所述风扇设置在所述电机与所述传动机构之间。
  31. 根据权利要求24所述角向电动工具,其中,传动机构包括传动箱壳体和变向组件,所述变向组件至少部分位于所述传动箱壳体中;所述传动箱壳体位于所述壳体内;所述中间壳体形成或连接于所述传动箱壳体。
  32. 根据权利要求21所述角向电动工具,其中,所述传动机构与所述出风口之间设置隔热板,所述隔热板沿垂直于所述电机轴线方向延伸,所述隔热板与所述出风口之间设置有供气流通过的气流通道。
  33. 一种角向电动工具,包括:
    电机,包括绕电机轴线转动的电机轴;
    风扇,被所述电机轴驱动;
    输出机构,包括以第一轴线为轴旋转的输出轴,所述输出轴被所述电机驱动并且所述第一轴线与所述电机轴线相交;
    传动机构,用于连接所述电机和所述输出机构;
    控制机构,用于控制所述电机;
    壳体,其长度沿所述电机轴线方向延伸;
    所述壳体,包括:
    第一进风口,在所述风扇转动时使气流进入所述壳体;
    出风口,在所述风扇转动时使所述气流排出所述壳体;
    中间壳体,设置在所述电机与所述输出机构之间,所述中间壳体包括由散热材料制成的第一散热部,所述出风口至少部分设置在所述第一散热部内;在所述风扇转动时,由所述第一进风口进入、由所述出风口排出的气流依次流经所述控制机构和所述电机。
  34. 根据权利要求33所述角向电动工具,其中,第一散热部由金属制成。
  35. 根据权利要求33所述角向电动工具,还包括第二进风口,在所述风扇转动时使气流进入所述壳体。
  36. 根据权利要求35所述角向电动工具,其中,所述第二进风口设置在所述第一进风口与所述出风口之间;所述第二进风口进入、由所述出风口排出的第二气流流过至少部分所述传动机构。
  37. 根据权利要求33所述角向电动工具,其中,所述风扇设置在所述电机与所述传动机构之间。
  38. 根据权利要求33所述角向电动工具,其中,传动机构包括传动箱壳体和变向组件,所述变向组件至少部分位于所述传动箱壳体中;所述传动箱壳体位于所述壳体内;所述中间壳体形成或连接于所述传动箱壳体。
  39. 根据权利要求38所述角向电动工具,其中,所述第一散热部形成所述传动箱壳体。
  40. 根据权利要求39所述角向电动工具,其中,所述传动箱壳体出风口之间设置隔热板,隔热板沿垂直与电机轴线方向延伸,隔热板与出风口之间设置有供气流通过的气流通道。
PCT/CN2023/120321 2022-09-28 2023-09-21 角钻及角向电动工具 WO2024067340A1 (zh)

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
CN202211185938.6A CN117817630A (zh) 2022-09-28 2022-09-28 角钻
CN202211196086.0 2022-09-28
CN202211185918.9 2022-09-28
CN202222581562.2U CN218638612U (zh) 2022-09-28 2022-09-28 角钻
CN202211196086.0A CN117817631A (zh) 2022-09-28 2022-09-28 电动工具
CN202211185917.4 2022-09-28
CN202211185917.4A CN117817629A (zh) 2022-09-28 2022-09-28 电动工具
CN202211185918.9A CN117817015A (zh) 2022-09-28 2022-09-28 电动工具
CN202211185938.6 2022-09-28
CN202222581562.2 2022-09-28

Publications (1)

Publication Number Publication Date
WO2024067340A1 true WO2024067340A1 (zh) 2024-04-04

Family

ID=90476204

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/120321 WO2024067340A1 (zh) 2022-09-28 2023-09-21 角钻及角向电动工具

Country Status (1)

Country Link
WO (1) WO2024067340A1 (zh)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20008377U1 (de) * 2000-05-10 2000-08-03 Chen Chia Ling Mechanismus zum kontinuierlichen Einstellen des Drehmomentes einer Bohrmaschine
CN201179624Y (zh) * 2004-11-08 2009-01-14 布莱克和戴克公司 人体工程高效的无绳电动工具
CN201217206Y (zh) * 2007-03-07 2009-04-08 布莱克和戴克公司 无绳户外电动工具系统
CN208162675U (zh) * 2017-03-24 2018-11-30 株式会社牧田 角钻
CN208246741U (zh) * 2018-04-04 2018-12-18 苏州宝时得电动工具有限公司 电动工具
CN112077799A (zh) * 2019-06-14 2020-12-15 南京德朔实业有限公司 一种电动工具
CN214135874U (zh) * 2019-09-29 2021-09-07 苏州宝时得电动工具有限公司 电锤
CN218638612U (zh) * 2022-09-28 2023-03-17 南京泉峰科技有限公司 角钻

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20008377U1 (de) * 2000-05-10 2000-08-03 Chen Chia Ling Mechanismus zum kontinuierlichen Einstellen des Drehmomentes einer Bohrmaschine
CN201179624Y (zh) * 2004-11-08 2009-01-14 布莱克和戴克公司 人体工程高效的无绳电动工具
CN201217206Y (zh) * 2007-03-07 2009-04-08 布莱克和戴克公司 无绳户外电动工具系统
CN208162675U (zh) * 2017-03-24 2018-11-30 株式会社牧田 角钻
CN208246741U (zh) * 2018-04-04 2018-12-18 苏州宝时得电动工具有限公司 电动工具
CN112077799A (zh) * 2019-06-14 2020-12-15 南京德朔实业有限公司 一种电动工具
CN214135874U (zh) * 2019-09-29 2021-09-07 苏州宝时得电动工具有限公司 电锤
CN218638612U (zh) * 2022-09-28 2023-03-17 南京泉峰科技有限公司 角钻

Similar Documents

Publication Publication Date Title
US8816544B2 (en) Power tool with a housing including a guide portion for guiding cooling air along a switching circuit board
EP2486998B1 (en) Cutting tools
JP5490572B2 (ja) 手持ち式切断工具
JP5570845B2 (ja) 手持ち式切断工具
JP5649834B2 (ja) 手持ち式切断工具
KR20130014556A (ko) 인체공학적 휴대용 전동공구 및 사용방법
WO2014008873A1 (zh) 便携式切割机
WO2021109603A1 (zh) 切割工具
JP2019030946A (ja) 充電式ポリッシャ
EP2300185A1 (en) A power tool configured for supporting a removable attachment
CN218638612U (zh) 角钻
WO2020173487A1 (zh) 长杆类电动工具
WO2024067340A1 (zh) 角钻及角向电动工具
JP5303600B2 (ja) 手持ち式ベルトサンダ
CN109848926A (zh) 电动工具
CN117817631A (zh) 电动工具
WO2021115207A1 (zh) 手持式工具机及其系统
CN207669247U (zh) 电动工具
CN117817015A (zh) 电动工具
CN117817629A (zh) 电动工具
CN117817630A (zh) 角钻
EP4032672A2 (en) Chain saw
WO2020216287A1 (zh) 长杆式打磨机
JP6266415B2 (ja) エアコンプレッサ
JP2002264042A (ja) バランス型動力回転工具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23870572

Country of ref document: EP

Kind code of ref document: A1