WO2022242327A1 - 角磨 - Google Patents

角磨 Download PDF

Info

Publication number
WO2022242327A1
WO2022242327A1 PCT/CN2022/084028 CN2022084028W WO2022242327A1 WO 2022242327 A1 WO2022242327 A1 WO 2022242327A1 CN 2022084028 W CN2022084028 W CN 2022084028W WO 2022242327 A1 WO2022242327 A1 WO 2022242327A1
Authority
WO
WIPO (PCT)
Prior art keywords
angle grinder
assembly
switch
switch assembly
motor
Prior art date
Application number
PCT/CN2022/084028
Other languages
English (en)
French (fr)
Inventor
俞亮亮
乐军
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
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 WO2022242327A1 publication Critical patent/WO2022242327A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts

Definitions

  • the present application relates to an electric tool, for example, to an angle grinder.
  • the size of the switch assembly of the traditional angle grinder is large, and the safety is low, which increases the volume of the angle grinder, which is not convenient for the compactness of the internal components of the angle grinder, and increases the burden on the user.
  • the present application provides an angle grinder.
  • the angle grinder adopts a light-touch switch.
  • the angle grinder has a good operating feel, is safe and reliable, and at the same time, the size of the angle grinder is reduced.
  • the present application provides an angle grinder, which includes: a housing, a motor supported by the housing; a switch assembly, which controls the opening of the motor; an operation assembly, which is used to trigger the switch assembly; the switch assembly includes: a contact, a diaphragm, which can be The operating assembly is pushed to contact the contacts, the package, the diaphragm and the contacts are mounted on the package.
  • the angle grinder further includes a circuit board, and the switch assembly is installed on the circuit board.
  • the stroke of the switch assembly is less than or equal to 1 mm and greater than or equal to 0.2 mm.
  • the angle grinder further includes: a button connected to or in contact with the diaphragm; and an elastic member disposed between the button and the operating component.
  • the motor can rotate around the first straight line
  • the operating assembly includes: a push button and an extension rod
  • the push button can be pushed along a direction parallel to the first straight line
  • the extension rod can be in contact with the elastic member
  • the extension rod Can move along a first straight line, at least partially overlap with the projection of the motor in the radial direction of the first straight line.
  • the extension rod and the elastic member are integrally formed.
  • the motor can rotate around the first straight line
  • the operating assembly includes: a push button and an extension rod, the push button can be pushed along a direction parallel to the first straight line, and the extension rod is connected to the push button.
  • the height of the switch assembly is less than or equal to 10 mm and greater than or equal to 3 mm.
  • the application provides an angle grinder, which includes a housing, a motor supported by the housing; a switch assembly, which controls the opening of the motor; an operation assembly, which is used for operation to trigger the switch assembly; a circuit board, on which a drive circuit is installed; the switch assembly includes: A point, a diaphragm, can be pushed by the operating unit to contact the contacts; the switch is mounted on the circuit board.
  • the stroke of the switch assembly is less than or equal to 1 mm and greater than or equal to 0.2 mm.
  • the angle grinder further includes: an elastic member disposed between the operation component and the switch component.
  • the operating component can respectively touch two or more of the switch components at different moving positions.
  • the switch assembly of the angle grinder proposed by this application includes a diaphragm structure, the overall size is small, and the safety is improved compared with the switch assembly of the traditional angle grinder, thereby reducing the overall size of the angle grinder and reducing the cost. The operation of the angle grinder feels good.
  • Fig. 1 is a schematic diagram of the three-dimensional structure of the angle grinder provided by the first embodiment of the present application
  • Fig. 2 is a schematic diagram of the internal structure when the operating assembly of the angle grinder provided in Fig. 1 is located at the first position;
  • Fig. 3 is a schematic diagram of the internal structure when the operating assembly of the angle grinder provided in Fig. 1 is located at a second position;
  • Fig. 4 is a schematic structural view of the switch assembly of the angle grinder provided in Fig. 1;
  • Fig. 5 is an exploded schematic view of the switch assembly of the angle grinder provided in Fig. 4;
  • Fig. 6 is a schematic diagram of the size of the switch assembly of the angle grinder provided in Fig. 4;
  • Fig. 7 is a schematic plan view of the internal structure of the angle grinder provided in Fig. 1;
  • Fig. 8 is a schematic diagram of the internal structure when the operating assembly of the angle grinder is in the first position provided by another embodiment
  • Fig. 9 is a schematic diagram of the internal structure when the operating assembly of the angle grinder provided in Fig. 8 is in the second position;
  • Fig. 10 is a schematic perspective view of the three-dimensional structure of an angle grinder provided by another embodiment.
  • the present application proposes an electric tool, such as an angle grinder 100 .
  • the angle grinder 100 includes a housing 110, a motor 120, and a working assembly 130. Referring to FIG. 1 to FIG. 3 , the present application proposes an electric tool, such as an angle grinder 100 .
  • the angle grinder 100 includes a housing 110, a motor 120, and a working assembly 130. Referring to FIG. 1 to FIG. 3 , the present application proposes an electric tool, such as an angle grinder 100 .
  • the angle grinder 100 includes a housing 110, a motor 120, and a working assembly 130.
  • the working assembly 130 includes an output shaft and a working accessory, and the motor 120 drives the working accessory to rotate through the output shaft to perform grinding operations.
  • the output shaft 110 is provided to extend along the second axis direction.
  • the output shaft is used to support the working accessories and drive the working accessories to rotate around the second axis.
  • the working accessories can be one or a combination of grinding discs, drill bits, saw blades, grinding wheels, polishing wheels, brush heads, and polishing cloths.
  • the working accessories are driven by the output shaft Rotate to perform grinding, polishing and other operations on the workpiece.
  • the angle grinder may also include a transmission device, which connects the motor and the output shaft, and transmits the output torque of the motor shaft of the motor to the output shaft, so that the motor drives the output shaft to rotate around the second axis.
  • the transmission device includes bevel gears meshing with each other, respectively connecting the motor shaft and the output shaft of the motor, so that the rotation axis of the output shaft can be arranged perpendicular to the rotation
  • the angle grinder 100 further includes a switch assembly 140 and an operation assembly 150 , the switch assembly 140 controls the motor 120 to be turned on, and the operation assembly 150 is operated by a user to trigger the switch assembly 140 .
  • the switch assembly 140 includes a contact 141 , a membrane 142 and a package 143 .
  • Diaphragm 142 is a deformable material, such as a metal shrapnel, which can be pushed by operating assembly 150 to generate deformation to contact contact 141.
  • Diaphragm 142 and contact 141 are installed in package 143, so that package 143 relatively positions diaphragm 142, so that The diaphragm 142 is positioned to be able to contact the contact 141 through deformation.
  • the angle grinder 100 also includes a circuit board 160, the circuit board 160 is equipped with a drive circuit, and the contact 141 is the positive and negative poles of the drive circuit, when the diaphragm 142 is pushed to contact with the contact 141 of the drive circuit , the drive circuit is turned on, so that the motor 120 is turned on, and the working component 130 is driven to work.
  • the switch assembly 140 is installed on the circuit board 160 , the package 143 is connected to the surface of the circuit board 160 , and the contacts 141 are located in the package 143 .
  • Diaphragm 142 is installed in the package 143, and is arranged close to contact 141, when operating assembly 150 is not operated, diaphragm 142 is in the first state, and diaphragm 142 is not in contact with contact 141, at this moment drive The circuit is open. The user pushes the diaphragm 142 to deform by controlling the operating component 150 , so that the diaphragm 142 enters the second state, and the deformed diaphragm 142 contacts the contact 141 , so that the driving circuit is turned on, thereby controlling the motor 120 to turn on.
  • the switch assembly 140 also includes a button 144, the button 144 is connected to or contacts the diaphragm 142, the diaphragm 142 is arranged between the button 144 and the contact point 141, and the operating assembly drives the diaphragm 142 to deform by pushing the button 144.
  • the button 144 can be attached to the diaphragm 142, because the diaphragm 142 is small in size, the diaphragm 142 can be fully deformed by the button 144, and the switch assembly 140 is prevented from failing due to insufficient contact between the operating assembly 150 and the abrasive sheet.
  • the overall size of the switch assembly 140 is small, and the stroke of the switch assembly 140 is small, that is, the displacement that the button 144 can be pushed is small, and the stroke of the switch assembly 140 is less than or equal to 1mm and greater than or equal to 0.2mm. Because the size of the switch assembly 140 is small, the size of the angle grinder 100 using the switch assembly 140 can be relatively reduced, making the angle grinder 100 lighter and more portable, and the position setting of the switch assembly 140 in the angle grinder 100 is also more flexible.
  • the housing 110 includes a grip portion 111 , a motor accommodating portion 112 , and a power connection portion 113 connected to a power source.
  • the grip portion 111 is for a user to hold, and the motor 120 is installed in the motor accommodating portion 112 .
  • the switch assembly 140 can be arranged in the motor accommodating part 112 , or in the grip part 111 , or in the power connection part 113 according to the layout requirements of the whole machine.
  • the operating assembly 150 includes a push button 151 and an extension rod 152, the push button 151 can be pushed along a direction parallel to the first straight line 101, the extension rod 152 is connected to the push button 151, and the end of the extension rod 152 is used to trigger switch assembly 140 .
  • the motor accommodating part 112 is arranged at the front end of the grip part 111, and the motor accommodating part 112 is closer to the working assembly relative to the grip part 111.
  • the angle grinder 100 includes a grip portion 111 , the motor 120 is disposed in the grip portion 111 , and the switch assembly 140 is also disposed in the grip portion 111 .
  • the angle grinder 100 provided by the present application further includes an elastic member 180 disposed between the button 144 and the operating assembly 150 .
  • the operating assembly 150 is connected with the elastic member 180, and the operating assembly 150 can at least move to the first position and the second position.
  • the operating assembly 150 is in the first position, the operating assembly 150 is in the initial position, the button 144 is not pressed, and the contact 141 and diaphragm 142 are not in contact.
  • the user pushes the push button 151 to move the operating assembly 150 to the second position.
  • the extension rod 152 is pushed by the push button 151, which drives the elastic member 180 to deform, so that the elastic member 180 pushes the button 144 to press the membrane.
  • tab 142 to activate motor 120 .
  • the elastic member 180 can buffer the pressing force of the switch assembly 140 by the user, effectively protect components such as the diaphragm 142 and the button 144 , and prolong the service life of the switch assembly 140 .
  • the button 144 is in indirect contact with the push button 151 through the elastic member 180 to ensure that the switch assembly 140 will not reset due to the vibration of the angle grinder 100 during operation, resulting in an abnormal shutdown.
  • the elastic member 180 can be a spring, compression spring, extension spring, torsion spring, spiral spring, etc., or a rubber ring, steel wire, air bag, etc.
  • the size of the switch assembly 140 is small, and the height L1 of the switch assembly 140 is less than or equal to 10mm and greater than or equal to 3mm.
  • the height of the switch assembly 140 is the vertical distance from the highest point of the switch assembly 140 to the upper surface of the circuit board 160 where the switch assembly 140 is located.
  • the overall size of the switch assembly 140 is smaller, which can Installed at multiple positions of the angle grinder 100 without occupying the internal size of the angle grinder 100 , so that the size of the angle grinder 100 can be effectively reduced, the weight of the angle grinder 100 can be reduced, and the load of the user when using the angle grinder 100 can be reduced.
  • the cost of the switch assembly used in the angle grinder proposed by the present application is lower, the safety is improved, and the service life of the switch assembly is longer.
  • the extension rod 152 and the elastic member 180 are two relatively independent elements, and the extension rod 152 can be in contact with the elastic member 180 .
  • the button 144 can be pushed in a first direction to turn on the motor 120 .
  • the first direction is in the radial direction of the first straight line 101 .
  • the elastic member 180 includes an inclined surface capable of contacting the extension rod 152 .
  • the distance between the inclined surface and the extension rod 152 in the radial direction of the first straight line 101 decreases gradually.
  • the extension rod 152 When the operating assembly 150 is at the first position, the extension rod 152 is not in contact with the elastic member 180 , and when the operating assembly 150 is at the second position, the extension rod 152 is in contact with the elastic member 180 and pushes the deformation of the elastic member 180 to push the button 144 .
  • the extension rod 152 abuts against the elastic member 180, and when the operating assembly 150 moves from the first position to the second position, the extension rod 152 pushes the elastic member 180 deforms to push button 144 .
  • the operating assembly 150 also includes a reset element 181, the reset element 181 is connected to the button 144 or the push rod, the reset element 181 is made of an elastic material, and can be a spring, a clip spring, an extension spring, etc., when the user controls the operating assembly 150 to move from the first position When reaching the second position, the reset element 181 is compressed, and after the user releases the switch, the reset element 181 is released so that the operating assembly 150 is reset to the first position.
  • FIG. 8 and FIG. 9 there are two switch assemblies 140a, namely a first switch 145 and a second switch 146, wherein the first switch 145 includes a first contact, a first The diaphragm and the first package, the second switch 146 includes a second contact, the second diaphragm and the second package, and the extension rod 152a includes a connecting portion capable of contacting the first switch 145 and the second switch 146 .
  • the operating component 150a can be operated by the user to the first position and the second position.
  • the connecting part When the operating component 150a is at the first position, the connecting part abuts against the first switch 145, and at this time the first contact contacts the first diaphragm, and the control The motor is turned off, and when the operating assembly 150a is in the second position, the connecting part abuts against the second switch 146, at this time the second contact contacts the second diaphragm, and the motor is turned on, so that the operating assembly 150a can be in different moving positions respectively. Touch 2 or more switch components.
  • the extension rod 152a and the elastic member are integrally formed, and the end of the extension rod 152a is made of elastic material, or the entire extension rod 152a is made of elastic material.
  • the elastic member does not contact the button 144a.
  • the elastic member abuts on the button 144a.
  • the elastic member abuts on the button 144a, it is in a compressed state to press Push button 144a turns on the motor.
  • the extension rod and the elastic member are two relatively independent components, and the extension rod can be in contact with the elastic member.
  • the button can be pushed in a first direction to turn on the motor.
  • the first direction is in the radial direction of the first straight line.
  • the elastic member includes an inclined surface capable of contacting the extension rod. Along the first direction, the distance between the inclined surface and the extension rod in the radial direction of the first straight line decreases gradually.
  • the operating assembly does not include an extension rod
  • the push button directly drives the elastic member to deform
  • the elastic member pushes the button to trigger the switch assembly.
  • the switch assembly can be pushed in the axial direction of the first straight line, and at this time, the deformation direction of the elastic member is adjusted accordingly.
  • the switch assembly 140a is not provided with a package, and the diaphragm is directly positioned and supported by the circuit board.
  • the operating assembly includes a trigger 151b and an extension rod.
  • the user can press the trigger to drive the extension rod to move, and the extension rod has a displacement in the radial direction of the first straight line.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.
  • the switch assembly of the angle grinder proposed by this application includes a diaphragm structure, the overall size is small, and the safety is improved compared with the switch assembly of the traditional angle grinder, thereby reducing the overall size of the angle grinder and reducing the cost. The grinding operation feels good.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

一种角磨，包括：壳体，电机，由壳体支撑；开关组件，控制电机的开启；操作组件，供操作以触发开关组件；开关组件包括：触点，膜片，可被操作组件推动以接触触点，封装件，膜片和触点安装于封装件。

Description

角磨
本申请要求在2021年5月18日提交中国专利局、申请号为202110540027.X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，例如涉及一种角磨。
背景技术
传统角磨的开关组件尺寸较大，且安全性较低，增加了的角磨的体积，不便于角磨内部元件的紧凑化，增加了用户的使用负担。
发明内容
本申请提供一种角磨，该角磨采用轻触开关，该角磨的操作手感良好，且安全可靠，同时角磨的尺寸有所减小。
本申请提供一种角磨，包括：壳体，电机，由壳体支撑；开关组件，控制电机的开启；操作组件，供操作以触发开关组件；开关组件包括：触点，膜片，可被操作组件推动以接触触点，封装件，膜片和触点安装于封装件。
在一实施例中，角磨还包括电路板，开关组件安装于电路板。
在一实施例中，开关组件的行程小于或等于1mm，且大于或等于0.2mm。
在一实施例中，角磨还包括：按钮，连接或接触膜片；弹性件，设置于按钮和操作组件之间。
在一实施例中，电机可绕第一直线转动，操作组件包括：推钮和延长杆，推钮可沿着平行于第一直线方向被推动，延长杆可与弹性件接触，延长杆能沿第一直线运动，与电机在第一直线的径向方向上的投影至少部分重叠。
在一实施例中，延长杆和弹性件一体成型。
在一实施例中，电机可绕第一直线转动，操作组件包括：推钮和延长杆，推钮可沿着平行于第一直线方向被推动，延长杆连接推钮。
在一实施例中，开关组件的高度小于或等于10mm，且大于或等于3mm。
本申请提供一种角磨，包括壳体，电机，由壳体支撑；开关组件，控制电机的开启；操作组件，供操作以触发开关组件；电路板，安装有驱动电路；开关组件包括：触点，膜片，可被操作组件推动以接触触点；开关安装于电路板。
在一实施例中，开关组件的行程小于或等于1mm，且大于或等于0.2mm。
在一实施例中，角磨还包括：弹性件，设置在操作组件和开关组件之间。
在一实施例中，操作组件可在不同的运动位置分别触动2个及以上的所述开关组件。
本申请提出的角磨的开关组件包括膜片结构，整体尺寸较小，且相对于传统的角磨的开关组件安全性有所提升，从而减小角磨的整机尺寸，并且降低成本，该角磨的操作手感良好。
附图说明
图1是本申请第一实施例提供的角磨的立体结构示意图；
图2是图1提供的角磨的操作组件位于第一位置时的内部结构示意图；
图3是图1提供的角磨的操作组件位于第二位置时的内部结构示意图；
图4是图1提供的角磨的开关组件的结构示意图；
图5是图4提供的角磨的开关组件的爆炸示意图；
图6是图4提供的角磨的开关组件的尺寸示意图；
图7是图1提供的角磨的内部结构的平面示意图；
图8是另一种实施方式提供的角磨的操作组件位于第一位置时的内部结构示意图；
图9是图8提供的角磨的操作组件位于第二位置时的内部结构示意图；
图10是另一种实施方式提供的角磨的立体结构示意图。
具体实施方式
下面详细描述本申请的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。
下面结合附图并通过具体实施方式来进一步说明本申请的技术方案。参照图1到图3，本申请提出一种电动工具，例如为角磨100。角磨100包括壳体 110、电机120以及工作组件130，参照图7，电机120由壳体110支撑，其能绕第一直线101转动，电机120驱动工作组件130运行。
工作组件130包括输出轴和工作附件，电机120通过输出轴带动工作附件旋转以进行打磨作业。输出轴110被设置沿着第二轴线方向延伸。输出轴用于支撑工作附件，带动工作附件绕第二轴线转动，工作附件可以是磨盘、钻头、锯片、砂轮、抛光轮、刷头、抛光布的一种或组合，工作附件被输出轴带动转动，以对工件进行打磨、抛光等作业。角磨还可以包括传动装置，传动装置连接电机和输出轴，并将电机的电机轴的输出扭矩传递给输出轴，从而使得电机带动输出轴绕第二轴线转动。传动装置包括相互啮合的锥齿轮，分别连接电机的电机轴和输出轴，从而使得输出轴的转动轴线可以相对电机的电机轴的转动轴线垂直地被设置。
参照图3、图4以及图5，角磨100还包括开关组件140和操作组件150，开关组件140控制电机120的开启，操作组件150供用户操作，以触发开关组件140。开关组件140包括触点141、膜片142以及封装件143。膜片142为形变材料，如金属弹片，能被操作组件150推动产生形变以接触触点141，膜片142和触点141安装于封装件143内，从而封装件143相对定位膜片142，使得膜片142被定位到能通过形变与触点141接触的位置。
参照图2和图6，角磨100还包括电路板160，电路板160安装有驱动电路，触点141为驱动电路的正负极，当膜片142被推动到与驱动电路的触点141接触时，驱动电路导通，从而电机120开启，驱动工作组件130作业。开关组件140安装于电路板160，封装件143连接到电路板160表面，并使得触点141位于封装件143内。膜片142被安装到封装件143内，并贴近触点141地被设置，在操作组件150未被操作时，膜片142处于第一状态，膜片142与触点141未接触，此时驱动电路处于断开状态。用户通过控制操作组件150，推动膜片142产生形变，使得膜片142进入第二状态，产生形变的膜片142与触点141接触，使得驱动电路导通，从而控制电机120开启。
参照图5，开关组件140还包括按钮144，按钮144连接或接触膜片142，膜片142被设置在按钮144和触点141之间，操作组件通过推动按钮144带动膜片142产生形变。按钮144能和膜片142贴合，因为膜片142的尺寸较小，通过按钮144能充分地使得膜片142产生形变，防止操作组件150与磨片接触不充分而使得开关组件140失效。
参照图2，开关组件140的整体尺寸很小，且开关组件140的行程较小，即按钮144能被推动的位移较小，开关组件140的行程小于或等于1mm且大于或等于0.2mm。因为开关组件140的尺寸较小，从而能相对减小使用该开关组件140的角磨100的尺寸，使得角磨100更轻巧便携，且开关组件140在角磨100内的位置设置也更加灵活。在一实施例中，壳体110包括握持部111和电机容纳部112，以及连接电源的电源连接部113，握持部111供用户握持，电机120被安装到电机容纳部112内。在设计角磨100的结构时，可以根据整机排布的需求将开关组件140设置在电机容纳部112内，或是握持部111内，或是电源连接部113内。
参照图3，操作组件150包括推钮151和延长杆152，推钮151能沿着平行于第一直线101方向被推动，延长杆152连接推钮151，且延长杆152的末端用于触发开关组件140。在第一直线101的轴向方向上，推钮151和开关组件140可以设有一定距离，通过延长杆152实现推钮151对开关组件140的触发。电机容纳部112设置在握持部111的前端，电机容纳部112相对握持部111更靠近工作组件，开关组件140可以被设置在握持部111，推钮151被设置在电机容纳部112周侧。例如，角磨100包括握持部111，电机120被设置在握持部111内，开关组件140也被设置在握持部111内。
因为开关组件140的行程较小，开关组件140被触发的条件较为严格，一旦操作组件150相对于开关组件140的位置因为装配问题或者长时间使用产生而偏差，会导致操作组件150不能触发开关组件140。因为开关组件140的行程过小，使得操作组件150的手感不好，用户能推动操作组件150的行程较短，使得操作组件150和开关组件140容易损坏，还会导致角磨无法开启、误触开启以及意外关机等情况。对此，本申请提供的角磨100还包括弹性件180，弹性件180设置于按钮144和操作组件150之间。操作组件150与弹性件180连接，操作组件150至少能移动到第一位置和第二位置，在操作组件150位于第一位置时，操作组件150处于初始位置，按钮144未被按动，触点141和膜片142未接触。用户在需要启动角磨100时，推动推钮151使得操作组件150移动到第二位置，此时延长杆152被推钮151推动，带动弹性件180产生形变，从而弹性件180推动按钮144按压膜片142，以启动电机120。通过设置弹性件180，可以提升操作组件150整体的可靠性，相对延长操作组件150的行程，提升用户使用角磨100时的手感。利用弹性件180可以对用户给开关组件140的 按压力进行缓冲，有效保护膜片142和按钮144等元件，延长开关组件140的使用寿命。同时，按钮144通过弹性件180和推钮151间接接触，保证开关组件140不会因为角磨100工作时的振动而复位，导致非正常关机。弹性件180其可以是弹簧、压簧、拉簧、扭簧、涡簧等，或橡胶圈、钢丝、气囊等。
参照图6，开关组件140的尺寸较小，开关组件140的高度L1小于或等于10mm，且大于或等于3mm。开关组件140的高度是开关组件140最高点到开关组件140所在的电路板160的上表面的垂直距离，相对于传统的角磨100的电机120开关，开关组件140的整体尺寸较小，其可以安装到角磨100的多个位置，且不占用角磨100的内部尺寸，从而可以有效缩小角磨100的尺寸，减轻角磨100的重量，减少用户使用角磨100时的负荷。相对于传统的角磨的大电流开关，本申请提出的角磨使用的开关组件成本更低，安全性得到了提高，且开关组件的寿命更长。
延长杆152和弹性件180为相对独立的两个元件，延长杆152能和弹性件180接触。按钮144能沿着第一方向被推动以开启电机120。第一方向在第一直线101的径向方向上。弹性件180包括能与延长杆152接触的斜面，沿着第一方向，该斜面与延长杆152在第一直线101的径向方向的距离逐渐减小。延长杆152被用户操作沿着第一方向移动时，延长杆152与斜面接触挤压该斜面，从而弹性件180改变位置和形态推动按钮144，以开启电机120。
在操作组件150位于第一位置时，延长杆152和弹性件180不接触，在操作组件150位于第二位置时，延长杆152和弹性件180接触并推动弹性件180形变，以推动按钮144。例如，在操作组件150位于第一位置和第二位置时，延长杆152都和弹性件180抵接，在操作组件150从第一位置移动到第二位置的过程中，延长杆152推动弹性件180产生形变，以推动按钮144。
操作组件150还包括复位元件181，复位元件181连接于按钮144或推杆，复位元件181为弹性材料制作，可以是弹簧、压簧、拉簧等，在用户控制操作组件150从第一位置移动到第二位置时，复位元件181受压缩，在用户松开开关后，复位元件181被释放使得操作组件150复位到第一位置。
在本申请的一种实施方式中，参照图8和图9，开关组件140a设有两个，分别是第一开关145和第二开关146，其中第一开关145包括第一触点、第一膜片以及第一封装件，第二开关146包括第二触点、第二膜片和第二封装件，延长杆152a包括能接触第一开关145和第二开关146的连接部。操作组件 150a能被用户操作到第一位置和第二位置，在操作组件150a位于第一位置时，连接部与第一开关145抵接，此时第一触点和第一膜片接触，控制电机关闭，在操作组件150a位于第二位置时，连接部与第二开关146抵接，此时第二触点和第二膜片接触，电机开启，使得操作组件150a可以在不同的运动位置分别触动2个及以上的开关组件。
在一实施例中，延长杆152a和弹性件一体成型，延长杆152a的末端由弹性材料制成，或者延长杆152a整体由弹性材料制成。在操作组件150a位于第一位置时，弹性件和按钮144a不接触，在操作组件150a位于第二位置时，弹性件与按钮144a抵接，弹性件与按钮144a抵接时处于压缩状态，以按动按钮144a开启电机。
在另一实施例中，延长杆和弹性件为相对独立的两个元件，延长杆能和弹性件接触。按钮能沿着第一方向被推动以开启电机。第一方向在第一直线的径向方向上。弹性件包括能与延长杆接触的斜面，沿着第一方向，该斜面与延长杆在第一直线的径向方向的距离逐渐减小。
在一实施例中，操作组件不包括延长杆，推钮直接带动弹性件产生形变，弹性件推动按钮以触发开关组件。
在一实施例中，开关组件能在第一直线的轴向方向被推动，此时弹性件的形变方向被对应地调节。
在一实施例中，开关组件140a不设有封装件，膜片直接由电路板定位和支撑。
在一实施例中，参照图10，操作组件包括扳机151b和延长杆，用户能按动扳机带动延长杆移动，此时延长杆具有在第一直线的径向方向上的位移。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是 可拆卸连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
本申请提出的角磨的开关组件包括膜片结构，整体尺寸较小，且相对于传统的角磨的开关组件安全性被提升，从而减小角磨的整机尺寸，并且降低成本，该角磨的操作手感良好。

Claims (12)

  1. 一种角磨，包括：
    壳体，
    电机，由所述壳体支撑；
    开关组件，控制所述电机的开启；
    操作组件，供操作以触发所述开关组件；
    所述开关组件包括：
    触点，
    膜片，可被所述操作组件推动以接触所述触点，
    封装件，所述膜片和所述触点安装于所述封装件。
  2. 如权利要求1所述的角磨，还包括电路板，所述开关组件安装于所述电路板。
  3. 如权利要求1所述的角磨，其中，所述开关组件的行程小于或等于1mm，且大于或等于0.2mm。
  4. 如权利要求3所述的角磨，还包括：按钮，连接或接触所述膜片；弹性件，设置于所述按钮和所述操作组件之间。
  5. 如权利要求4所述的角磨，其中，所述电机可绕第一直线转动，所述操作组件包括：推钮和延长杆，所述推钮可沿着平行于所述第一直线方向被推动，所述延长杆可与所述弹性件接触，所述延长杆可沿所述第一直线运动，与所述电机在所述第一直线的径向方向上的投影至少部分重叠。
  6. 如权利要求4所述的角磨，其中，所述延长杆和所述弹性件一体成型。
  7. 如权利要求1所述的角磨，其中，所述电机可绕第一直线转动，所述操作组件包括：推钮和延长杆，所述推钮可沿着平行于所述第一直线方向被推动，所述延长杆连接所述推钮。
  8. 如权利要求5所述的角磨，其中，所述开关组件的高度小于或等于10mm，且大于或等于3mm。
  9. 一种角磨，包括：
    壳体，
    电机，由所述壳体支撑；
    开关组件，控制所述电机的开启；
    操作组件，供操作以触发所述开关组件；
    电路板，安装有驱动电路；
    所述开关组件包括：
    触点，
    膜片，可被所述操作组件推动以接触所述触点；
    所述开关安装于所述电路板。
  10. 如权利要求9所述的角磨，其中，
    所述开关组件的行程小于或等于1mm，且大于或等于0.2mm。
  11. 如权利要求10所述的角磨，还包括：弹性件，设置在所述操作组件和所述开关组件之间。
  12. 如权利要求10所述的角磨，其中，所述操作组件可在不同的运动位置分别触动2个及以上的所述开关组件。
PCT/CN2022/084028 2021-05-18 2022-03-30 角磨 WO2022242327A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110540027.XA CN115365963A (zh) 2021-05-18 2021-05-18 角磨
CN202110540027.X 2021-05-18

Publications (1)

Publication Number Publication Date
WO2022242327A1 true WO2022242327A1 (zh) 2022-11-24

Family

ID=84058759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/084028 WO2022242327A1 (zh) 2021-05-18 2022-03-30 角磨

Country Status (2)

Country Link
CN (1) CN115365963A (zh)
WO (1) WO2022242327A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665290A (en) * 1985-09-30 1987-05-12 Eaton Corporation Trigger operated portable electric tool switch
CN109473303A (zh) * 2017-09-07 2019-03-15 上海拜骋电器有限公司 开关及具有其的电动工具
CN209000783U (zh) * 2018-09-06 2019-06-18 乐清市骞腾电子有限公司 一种电动工具开关
CN111834157A (zh) * 2020-08-05 2020-10-27 傲基科技股份有限公司 电动工具

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665290A (en) * 1985-09-30 1987-05-12 Eaton Corporation Trigger operated portable electric tool switch
CN109473303A (zh) * 2017-09-07 2019-03-15 上海拜骋电器有限公司 开关及具有其的电动工具
CN209000783U (zh) * 2018-09-06 2019-06-18 乐清市骞腾电子有限公司 一种电动工具开关
CN111834157A (zh) * 2020-08-05 2020-10-27 傲基科技股份有限公司 电动工具

Also Published As

Publication number Publication date
CN115365963A (zh) 2022-11-22

Similar Documents

Publication Publication Date Title
EP2193884B1 (en) Knock-in tool
JP3122692U (ja) 電動ラチェットレンチ用回路遮断制御構造
CN110293525B (zh) 作业工具
CN102825569A (zh) 压力触发工作的电动工具
US8978951B2 (en) Auto hammer
ES2827925T3 (es) Herramienta
WO2022242327A1 (zh) 角磨
TW200924918A (en) Driving device for electric nail gun
CN112895787A (zh) 一种手持雕刻工具
EP3476543A1 (en) Tool and electric tool
JP2020040161A (ja) 作業工具
CN114750114A (zh) 手持式冲击工具
CN218083203U (zh) 一种电木铣工作台
CN211681905U (zh) 电动榔头
CN220914080U (zh) 一种控制组件及手持动力工具
EP4283644A1 (en) Electric tool
CN216849689U (zh) 一种极限开关
CN114502329A (zh) 用于动力工具的手柄设备
CN220051718U (zh) 电动工具
US11052527B2 (en) Tool
CN213673948U (zh) 电动工具
CN210910106U (zh) 一种可触摸滑动和按压式控制的电推剪
CN209936838U (zh) 一种离合装置以及具有该离合装置的电锤
CN218837101U (zh) 角磨机
JP7464139B2 (ja) 作業機

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: 22803653

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22803653

Country of ref document: EP

Kind code of ref document: A1