WO2024131871A1 - 减振机构及电动震动工具 - Google Patents

减振机构及电动震动工具 Download PDF

Info

Publication number
WO2024131871A1
WO2024131871A1 PCT/CN2023/140475 CN2023140475W WO2024131871A1 WO 2024131871 A1 WO2024131871 A1 WO 2024131871A1 CN 2023140475 W CN2023140475 W CN 2023140475W WO 2024131871 A1 WO2024131871 A1 WO 2024131871A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibration
cantilever
cantilever beam
vibration reduction
reduction mechanism
Prior art date
Application number
PCT/CN2023/140475
Other languages
English (en)
French (fr)
Inventor
陈连成
管恩平
邓宏志
杨升任
刘书润
Original Assignee
深圳市云顶信息技术有限公司
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 深圳市云顶信息技术有限公司 filed Critical 深圳市云顶信息技术有限公司
Publication of WO2024131871A1 publication Critical patent/WO2024131871A1/zh

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • the present application relates to the technical field of electric vibration tools, and in particular to a vibration reduction mechanism and an electric vibration tool.
  • the electric vibration tools currently on the market such as electric toothbrushes, electric massage tools, etc., mainly achieve vibration reduction by absorbing the energy of motor vibration through soft rubber pads.
  • the vibration reduction effect of this vibration reduction method is not very obvious.
  • the object of the present invention is to overcome the above-mentioned defects of the prior art and to provide a vibration reduction mechanism and an electric vibration tool, which adopt a swing vibration reduction mechanism to produce a phase difference with the motor swing to form a mechanical cancellation, thereby achieving the effect of vibration reduction or vibration elimination.
  • a vibration reduction mechanism for an electric vibration tool comprises a fixed bracket, a vibrator and an elastic component, wherein the fixed bracket is directly or indirectly rigidly connected to a motor of the electric vibration tool, the elastic component is mounted on the fixed bracket, and the vibrator is connected to the elastic component.
  • the vibration reduction component When the motor vibrates, the vibration reduction component is excited by the motor to vibrate, the vibrator vibrates due to its own mass inertia, and the elastic component provides a restoring force for the vibrator to return to its original position.
  • the restoring force causes the vibrator to vibrate in the opposite direction of the motor.
  • the invention also discloses an electric vibration tool, comprising the above-mentioned vibration reduction mechanism.
  • the embodiment of the present invention sets up a swing-type vibration reduction mechanism.
  • the vibration reduction component is excited by the motor to generate vibration, and the vibrator vibrates due to its own mass inertia.
  • the elastic component provides a restoring force for the vibrator to return to its original position.
  • the restoring force causes the vibrator to vibrate in the opposite direction of the motor, forming mechanical cancellation, thereby achieving the purpose of vibration reduction or vibration elimination.
  • FIG. 1 is a schematic diagram of the exploded structure of a vibration reduction mechanism according to a specific embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the exploded structure of a vibration reduction mechanism according to another specific embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the exploded structure of a vibration reduction mechanism according to another specific embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the connection structure between a motor assembly and a vibration reduction mechanism according to a specific embodiment of the present invention.
  • FIG5 is a schematic cross-sectional view of an electric toothbrush according to a specific embodiment of the present invention.
  • FIG. 6 is a schematic diagram showing the distribution of the vibration reduction mechanism inside the handle according to a specific embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing the distribution of the vibration reduction mechanism inside the handle according to another specific embodiment of the present invention.
  • the present invention discloses a vibration reduction mechanism 10 for an electric vibration tool, including a fixed bracket 11, a vibrator 12 and an elastic component 13.
  • the fixed bracket 11 is directly or indirectly rigidly connected to the motor of the electric vibration tool
  • the elastic component 13 is installed on the fixed bracket 11, and the vibrator 12 is connected to the elastic component 13.
  • the elastic component 13 provides a restoring force for the vibrator 12 to return to its original position. The restoring force causes the vibrator 12 to vibrate in the opposite direction of the motor 41, forming a mechanical offset, thereby achieving the purpose of vibration reduction or vibration elimination.
  • the fixed bracket 11 is used to install the vibrator 12 and the elastic component 13, so that the vibration reduction mechanism 10 becomes a whole, which is convenient for assembling the vibration reduction mechanism 10 outside the handle 20.
  • the vibration frequency of the vibrator 12 is equivalent to the vibration frequency of the motor 41.
  • the present invention also discloses an electric vibration tool including the above-mentioned damping mechanism
  • the electric vibration tool also includes a handle 20, a tool head, a motor assembly 40, a battery 50 and a control mainboard 60.
  • the handle 20 is provided with a receiving chamber
  • the motor assembly 40, the battery 50 and the control mainboard 60 are all received in the receiving chamber
  • the motor assembly 40 includes a motor 41 and an output shaft 42
  • the output shaft 42 extends from the end of the handle 20 and is connected to the tool head
  • the motor 41 drives the output shaft 42 to rotate eccentrically
  • the eccentric rotation of the output shaft 42 drives the tool head to swing.
  • the damping mechanism 10 is also received in the receiving chamber, the damping mechanism 10 is coaxially arranged with the motor assembly 40, after the damping mechanism is installed in the receiving chamber, the vibrator 12 is symmetrical about the output shaft 42 of the motor 41, the vibrator 12 takes the axis of the output shaft 42 (i.e., the swing center line of the motor) as the central axis, and rotates and swings and vibrates in a tangential direction perpendicular to the output shaft 42 to offset or partially offset the rotational swing vibration generated by the motor 41.
  • the axis of the output shaft 42 i.e., the swing center line of the motor
  • the tool head is a toothbrush head 30.
  • the tool head may also be a massage head or the like.
  • the elastic component 13 includes a cantilever end 131, and the cantilever end 131 is connected to the vibrator 12.
  • the number of the cantilever end 131 is at least one, and at least one vibrator 12 is arranged on each cantilever end 131, and the cantilever ends 131 are distributed symmetrically about the output shaft 42 (or the swing center line of the motor), and the vibrators 12 are distributed symmetrically about the output shaft 42 (or the swing center line of the motor).
  • the elastic component 13 includes a symmetrical elastic sheet, which is symmetrical relative to the swing center line of the motor (or the center line of the output shaft when it is stationary), and at least one of the two ends of the symmetrical elastic sheet that are arranged oppositely along the swing center line of the motor is a fixed end 134, and the fixed end 134 is connected to the fixed bracket 11, and the symmetrical elastic sheet is provided with two cantilever ends 131 that are symmetrical relative to the swing center line away from the swing center line of the motor, and the two cantilever ends 131 are respectively connected to a vibrator 12.
  • the two vibrators 12 When vibrating, the two vibrators 12 rotate and swing along the tangential direction of the vertical output shaft 42, and the two cantilever ends 131 first undergo elastic bending, and the two cantilever ends 131 drive the beam connected to the fixed end 134 (or the beam 135 between the two fixed ends 134) to undergo torsional vibration, thereby generating vibration that offsets the motor 41.
  • the symmetrical elastic sheet is a cross elastic sheet, and the two opposite ends of the cross elastic sheet are fixed ends 134, which are connected to the fixed bracket 11, and the other two opposite ends of the cross elastic sheet are cantilever ends 131, respectively, and the two cantilever ends 131 are respectively connected to a vibrator 12.
  • the two vibrators 12 rotate and swing along the tangential direction of the vertical output shaft 42, and the two cantilever ends 131 bend first.
  • the beam 135 between the two fixed ends 134 plays a damping role, and then the beam 135 between the two fixed ends 134 is driven to bend and twist.
  • the two cantilever ends 131 when the two cantilever ends 131 reach the maximum displacement, the two cantilever ends 131 provide a restoring force to restore the vibrator 12 to its original position, and the restoring force causes the vibrator 12 to generate vibrations that offset the motor 41.
  • the two cantilever ends 131 both intersect at the midpoint of the beam 135 between the two fixed ends 134.
  • the thickness of the cross elastic piece is much smaller than the width of the beam 135 between the two fixed ends 134 or the width of the two cantilever ends 131 , thereby increasing the elastic force of the cross elastic piece along the thickness direction.
  • the symmetrical elastic sheet may also include a reinforcing rib structure or a strengthening hollow structure.
  • the fixing bracket 11 is provided with a snap-in groove 111 for snap-in connection with the fixing end 134 to facilitate assembly.
  • the symmetrical elastic sheet is a metal sheet or an artificially synthesized rigid material (such as engineering plastics, etc.).
  • the Young's modulus of the symmetrical elastic sheet is higher than 2000 MPa.
  • the elastic component 13 includes a first cantilever beam 136 and a second cantilever beam 137, the first cantilever beam 136 has a first end 1361 and a second end 1362 that are relatively arranged, the second cantilever beam 137 has a third end 1371 and a fourth end 1372 that are relatively arranged, the first end 1361 and the third end 1371 are connected to form a cantilever end 131, the second end 1362 and the fourth end 1372 are respectively connected to the fixed bracket 11, and the cantilever end 131 is provided with a vibrator 12. During vibration, the vibrator 12 rotates, swings and vibrates in a tangential direction perpendicular to the motor swing center line.
  • the first cantilever beam 136 and the second cantilever beam 137 are respectively in compression and tension states. When in compression, they provide damping effects. When compressed and stretched to the maximum displacement, the first cantilever beam 136 and the second cantilever beam 137 respectively provide restoring forces for the vibrator 12 to return to their original positions.
  • the first cantilever beam 136 and the second cantilever beam 137 are symmetrical about the motor swing center line, and the cantilever end 131 is located on the motor swing center line.
  • the second end 1362 and the fourth end 1372 are respectively connected to the two relatively distant ends of the fixed bracket 11, and the first cantilever beam 136 and the second cantilever beam 137 are respectively arc-shaped, and the arc shape can enhance the elasticity of the first cantilever beam 136 and the second cantilever beam 137.
  • the second end 1362 and the fourth end 1372 are respectively connected to the middle position of the fixing bracket 11 , and the first cantilever beam 136 and the second cantilever beam 137 are respectively in a straight line shape.
  • the elastic component 13 also includes a first support beam 138 connected to the first cantilever beam 136 and a second support beam 139 connected to the second cantilever beam 137.
  • the first support beam 138 is arranged on the side of the first cantilever beam 136 away from the second cantilever beam 137
  • the second support beam 139 is arranged on the side of the second cantilever beam 137 away from the first cantilever beam 136.
  • the first support beam 138 and the second support beam 139 can respectively increase the damping and restoring force of the first cantilever beam 136 and the second cantilever beam 137.
  • a vibrator 12 located on the motor swing center line can be set at the cantilever end 131, or more than two vibrators 12 can be set.
  • the vibrators 12 are distributed symmetrically about the motor swing center line.
  • a vibrator 12 is set on both sides of the cantilever end 131 that are symmetrical about the motor swing center line, and the connection direction of the two vibrators 12 is the same as the direction from the first cantilever beam 136 to the second cantilever beam 137. With such a setting, the elastic force in the direction from the first cantilever beam 136 to the second cantilever beam 137 can be increased.
  • the first cantilever beam 136 and the second cantilever beam 137 are made of plastic material or metal material.
  • the first cantilever beam 136 and the second cantilever beam 137 are made of plastic material and are integrally formed with the fixing bracket 11 .
  • the vibrator 12 is a metal weight block.
  • the shock absorbing mechanism is directly rigidly connected to the motor assembly 40, and the shock absorbing mechanism is arranged at the end of the motor assembly 40 away from the output shaft 42.
  • the fixing bracket 11 is provided with a snap-fit structure 112 that is snap-fitted and connected to the motor assembly 40, and the snap-fit structure 112 is easy to position.
  • glue can also be applied at the connection.
  • the connection can also be achieved only by glue application.
  • the connection can also be achieved by fasteners such as bolts, and a bolt mounting hole 113 is provided on the fixing bracket 11.
  • the shock absorbing mechanism and the motor assembly 40 form a new vibration reduction motor assembly 40, and the swing of the motor 41 directly drives the vibrator 12 of the vibration reduction mechanism 10 to swing.
  • the swing of the vibrator 12 and the swing of the motor 41 produce an opposite phase difference, forming a mechanical offset, thereby achieving the effect of vibration reduction or vibration elimination.
  • the damping mechanism is indirectly connected to the motor assembly 40, and the electric vibration tool further includes a main frame bracket 70.
  • the motor assembly 40, the damping mechanism 10, the battery 50 and the control mainboard 60 are all installed on the main frame bracket 70, and then the main frame bracket 70 is installed in the accommodating cavity of the handle 20.
  • the motor assembly 40 transmits the vibration to the main frame bracket 70, and the main frame bracket 70 transmits the vibration to the damping mechanism.
  • the damping mechanism 10 can be set at any position of the main frame bracket 70, and the damping mechanism 10 is preferably set at a position where the strongest vibration is generated when the motor 41 swings.
  • the fixed bracket 11 and the main bracket 70 are combined into one structure, that is, the elastic component 13 and the vibrator 12 can be installed on the main bracket 70, or the motor component 40, the battery 50 and the control motherboard 60 can be installed on the fixed bracket 11.

Landscapes

  • Brushes (AREA)
  • Percussion Or Vibration Massage (AREA)

Abstract

本申请公开了一种减振机构及电动震动工具，减振机构包括固定支架、振子和弹性组件，所述弹性组件安装于所述固定支架上，所述振子与所述弹性组件相连接，当所述电动震动工具的马达振动时，所述减振组件受所述马达激励产生振动，所述振子因自身质量惯性产生振动，所述弹性组件提供所述振子恢复原位的回复力，所述回复力使所述振子产生与所述马达反向的振动。本发明采用摇摆式减振机构，使其与马达摇摆产生相位差，形成力学抵消，从而达到减振或消振的效果。

Description

减振机构及电动震动工具 技术领域
本申请涉及电动震动工具技术领域，尤其涉及一种减振机构及电动震动工具。
 背景技术
目前市场上的电动震动工具，例如电动牙刷、电动按摩工具等，主要通过软胶垫吸收马达振动的能量来实现减振，但是，对于高频振动，这种减振方式的减振效果并不太明显。
 技术问题
若将电动震动工具打开后放在桌上，由于振动强，电动震动工具会在桌上无规则的移动。或者手握电动震动工具，手上会有强烈的麻感，使用效果不佳。
 技术解决方案
本发明的目的在于克服现有技术存在的上述缺陷，提供一种减振机构及电动震动工具，采用摇摆式减振机构，使其与马达摇摆产生相位差，形成力学抵消，从而达到减振或消振的效果。
为实现上述目的，本发明的技术方案如下：
一种减振机构，用于电动震动工具，包括固定支架、振子和弹性组件，所述固定支架与所述电动震动工具的马达直接或间接刚性连接，所述弹性组件安装于所述固定支架上，所述振子与所述弹性组件相连接，
当所述马达振动时，所述减振组件受所述马达激励产生振动，所述振子因自身质量惯性产生振动，所述弹性组件提供所述振子恢复原位的回复力，所述回复力使所述振子产生与所述马达反向的振动。
本发明还公开了一种电动震动工具，包括上述的减振机构。
 有益效果
实施本申请实施例，将具有如下有益效果：
本发明实施例通过设置摇摆式减振机构，当电动震动工具的马达振动时，减振组件受马达激励产生振动，振子因自身质量惯性产生振动，弹性组件提供振子恢复原位的回复力，回复力使振子产生与马达反向的振动，形成力学抵消，从而达到减振或消振的目的。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
其中：
图1是本发明一具体实施例的减振机构的分解结构示意图。
图2是本发明另一具体实施例的减振机构的分解结构示意图。
图3是本发明另一具体实施例的减振机构的分解结构示意图。
图4是本发明一具体实施例的马达组件和减振机构的连接结构示意图。
图5是本发明一具体实施例的电动牙刷的剖面结构示意图。
图6是本发明一具体实施例的减振机构在手柄内部的分布示意图。
图7是本发明另一具体实施例的减振机构在手柄内部的分布示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
参考图1~图3，本发明公开了一种减振机构10，用于电动震动工具，包括固定支架11、振子12和弹性组件13，固定支架11与电动震动工具的马达直接或间接刚性连接，弹性组件13安装于固定支架11上，振子12与弹性组件13相连接，当电动震动工具的马达41振动时，减振组件受马达41激励产生振动，振子12因自身质量惯性产生振动，弹性组件13提供振子12恢复原位的回复力，回复力使振子12产生与马达41反向的振动，形成力学抵消，从而达到减振或消振的目的。固定支架11用于安装振子12和弹性组件13，使得减振机构10成为一整体，便于在手柄20外组装减振机构10。振子12的振动频率与马达41振动频率相当。
参考图5，本发明还公开了一种包括上述减震机构的电动震动工具，电动震动工具还包括手柄20、工具头、马达组件40、电池50和控制主板60，手柄20内设有容纳腔，马达组件40、电池50和控制主板60均容纳于容纳腔内，马达组件40包括马达41和输出轴42，输出轴42从手柄20的端部伸出与工具头相连接，马达41带动输出轴42偏心转动，输出轴42偏心转动带动工具头摆动。减振机构10也容纳于容纳腔内，减振机构10与马达组件40同轴设置，减震机构安装于容纳腔后，振子12关于马达41的输出轴42对称，振子12以输出轴42（即马达的摆动中心线）的轴线为中心轴，沿垂直输出轴42的切向方向旋转摆动振动，以与马达41产生的旋转摆动振动相抵消或部分抵消。
在本具体实施例中，工具头为牙刷头30，在其它实施例中，工具头也可以为按摩头等。
参考图1~图3，在一具体实施例中，弹性组件13包括悬臂端131，悬臂端131与振子12相连接。悬臂端131的数量至少为1个，每个悬臂端131上至少设置一振子12，悬臂端131分布关于输出轴42（或马达的摆动中心线）对称，振子12分布关于输出轴42（或马达的摆动中心线）对称。
参考图1，在一具体实施例中，弹性组件13包括对称弹性片，对称弹性片相对马达的摆动中心线（或输出轴静止时的中心线）对称，对称弹性片沿着马达的摆动中心线的相对设置的两端中至少一端为固定端134，固定端134与固定支架11相连接，对称弹性片远离马达的摆动中心线设置两个相对摆动中心线对称的悬臂端131，两悬臂端131分别与一振子12相连接。振动时，两振子12沿垂直输出轴42的切向方向旋转摆动振动，两悬臂端131首先发生弹性弯曲，两悬臂端131带动与固定端134相连接的梁（或两固定端134之间的梁135）发生扭转振动，从而产生与马达41相抵消的振动。
参考图1，在一具体实施例中，对称弹性片为十字弹性片，十字弹性片的相对设置的两端为固定端134，固定端134与固定支架11相连接，十字弹性片的相对设置的另外两端分别为悬臂端131，两悬臂端131分别与一振子12相连接。振动时，两振子12沿垂直输出轴42的切向方向旋转摆动振动，两悬臂端131首先发生弯曲，此时两固定端134之间的梁135起阻尼作用，随后两固定端134之间的梁135被带动也发生弯曲扭曲振动，当两悬臂端131达到最大位移时，两悬臂端131提供使振子12回复原位的回复力，该回复力使振子12产生与马达41相抵消的振动。两悬臂端131均交汇于两固定端134之间的梁135的中点。十字弹性片的厚度远小于两固定端134之间的梁135的宽度或两悬臂端131的宽度，提高十字弹性片沿厚度方向的弹力。
在其它实施例中，对称弹性片上也可以包含加强筋结构或减强镂空结构等。
较优的，固定支架11上设有用于卡接固定端134的卡接槽111，便于组装。
较优的，对称弹性片为金属片或人工合成刚性材料（例如工程塑料等），优选的，对称弹性片的杨氏模量高于2000MPa。
参考图2和图3，在另一具体实施例中，弹性组件13包括第一悬臂梁136和第二悬臂梁137，第一悬臂梁136具有相对设置的第一端1361和第二端1362，第二悬臂梁137具有相对设置的第三端1371和第四端1372，第一端1361和第三端1371相连接形成悬臂端131，第二端1362和第四端1372分别与固定支架11相连接，悬臂端131设置振子12。振动时，振子12沿垂直马达摆动中心线的切向方向旋转摆动振动，第一悬臂梁136和第二悬臂梁137分别处于压缩和拉伸状态，当处于压缩状态时，提供阻尼作用，当被压缩和拉伸至最大位移处，第一悬臂梁136和第二悬臂梁137分别提供振子12回复原位的回复力，第一悬臂梁136和第二悬臂梁137关于马达摆动中心线对称，悬臂端131位于马达摆动中心线上。
进一步的，参考图2，在一具体实施例中，第二端1362和第四端1372分别与固定支架11的相对远离的两端相连接，第一悬臂梁136和第二悬臂梁137分别呈弧形，弧形能增强第一悬臂梁136和第二悬臂梁137的弹性。
参考图3，在另一具体实施例中，第二端1362和第四端1372分别与固定支架11的中间位置相连接，第一悬臂梁136和第二悬臂梁137分别呈直线形。
在本实施例中，较优的，弹性组件13还包括与第一悬臂梁136相连接的第一支撑梁138和与第二悬臂梁137相连接的第二支撑梁139，第一支撑梁138设置于第一悬臂梁136的远离第二悬臂梁137的一侧，第二支撑梁139设置于第二悬臂梁137的远离第一悬臂梁136的一侧，振动时，第一支撑梁138和第二支撑梁139能分别提高第一悬臂梁136和第二悬臂梁137的阻尼和回复力。
参考图2和图3，在上述两实施例中，可以在悬臂端131设置位于马达摆动中心线上的一个振子12，也可以设置两个以上振子12，当设置多个振子12时，振子12分布关于马达摆动中心线对称，较优的，悬臂端131的关于马达摆动中心线对称的两侧分别设置一振子12，两振子12的连线方向与从第一悬臂梁136到第二悬臂梁137的方向相同，如此设置，可以提高从第一悬臂梁136到第二悬臂梁137的方向的弹力。
第一悬臂梁136和第二悬臂梁137的材料分别为塑胶材料或金属材料。较优的，在本具体实施例中，第一悬臂梁136和第二悬臂梁137的材料分别为塑胶材料，和固定支架11一体成型。
在上述各实施例中，振子12均为金属配重块。
参考图4，在一具体实施例中，减震机构与马达组件40直接刚性连接，减震机构设置于马达组件40的背离输出轴42的一端，固定支架11上设有与马达组件40相卡合连接的卡合结构112，卡合结构112便于定位。为了增强减震机构与马达组件40连接的刚性，还可以在连接处点胶。当然也可以仅通过点胶实现连接。在其它实施例中，也可以通过螺栓等紧固件实现连接，在固定支架11上设有螺栓安装孔113。在本实施例中，减震机构与马达组件40组成一个新的减振马达组件40，马达41摆动直接带动减振机构10的振子12摆动，振子12摆动与马达41摇摆产生相反的相位差，形成力学抵消，从而达到减振或消振的效果。
参考图6和图7，在另一具体实施例中，减震机构与马达组件40间接连接，电动震动工具还包括主机支架70，马达组件40、减振机构10、电池50和控制主板60均安装于主机支架70上，然后将主机支架70安装于手柄20的容纳腔内，马达组件40将振动传递至主机支架70，主机支架70再将振动传递至减震机构。减振机构10可以设置在主机支架70的任何位置，减振机构10优选设置在马达41摇摆时产生最强振感的位置。
在另一具体实施例中，固定支架11和主机支架70合并为一结构，即可以将弹性组件13和振子12均安装于主机支架70上，或者，将马达组件40、电池50和控制主板60均安装于固定支架11上。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种减振机构，用于电动震动工具，其特征在于，包括固定支架、振子和弹性组件，所述固定支架与所述电动震动工具的马达直接或间接刚性连接，所述弹性组件安装于所述固定支架上，所述振子与所述弹性组件相连接，
    当所述马达振动时，所述减振组件受所述马达激励产生振动，所述振子因自身质量惯性产生振动，所述弹性组件提供所述振子恢复原位的回复力，所述回复力使所述振子产生与所述马达反向的振动。
  2. 根据权利要求1所述的减振机构，其特征在于，所述弹性组件包括悬臂端，所述悬臂端与所述振子相连接。
  3. 根据权利要求2所述的减振机构，其特征在于，所述弹性组件包括对称弹性片，所述对称弹性片相对所述马达的摆动中心线对称，所述对称弹性片沿着所述马达的摆动中心线的相对设置的两端中至少一端为固定端，所述固定端与所述固定支架相连接，所述对称弹性片还设置有两个远离所述摆动中心线的所述悬臂端，所述悬臂端相对所述摆动中心线对称，两所述悬臂端分别与一所述振子相连接。
  4. 根据权利要求3所述的减振机构，其特征在于，所述固定支架上设有用于卡接所述固定端的卡接槽；
    所述对称弹性片为金属片或人工合成刚性材料。
  5. 根据权利要求2所述的减振机构，其特征在于，所述弹性组件包括第一悬臂梁和第二悬臂梁，所述第一悬臂梁具有相对设置的第一端和第二端，所述第二悬臂梁具有相对设置的第三端和第四端，所述第一端和所述第三端相连接形成所述悬臂端，所述第二端和所述第四端分别与所述固定支架相连接。
  6. 根据权利要求5所述的减振机构，其特征在于，所述第二端和所述第四端分别与所述固定支架的相对远离的两端相连接，所述第一悬臂梁和所述第二悬臂梁分别呈弧形。
  7. 根据权利要求5所述的减振机构，其特征在于，所述第二端和所述第四端分别与所述固定支架的中间位置相连接，所述第一悬臂梁和所述第二悬臂梁分别呈直线形，所述弹性组件还包括与所述第一悬臂梁相连接的第一支撑梁和与所述第二悬臂梁相连接的第二支撑梁，所述第一支撑梁设置于所述第一悬臂梁的远离所述第二悬臂梁的一侧，所述第二支撑梁设置于所述第二悬臂梁的远离所述第一悬臂梁的一侧。
  8. 根据权利要求5~7中任意一项所述的减振机构，其特征在于，所述悬臂端的两侧分别设置一所述振子；
    所述第一悬臂梁和所述第二悬臂梁分别为塑胶材料或金属材料。
  9. 根据权利要求1~7中任意一项所述的减振机构，其特征在于，所述振子为金属配重块。
  10. 一种电动震动工具，其特征在于，包括如权利要求1~9中任意一项所述的减振机构。
PCT/CN2023/140475 2022-12-23 2023-12-21 减振机构及电动震动工具 WO2024131871A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211661927.0 2022-12-23
CN202211661927.0A CN115912771A (zh) 2022-12-23 2022-12-23 减振机构及电动震动工具

Publications (1)

Publication Number Publication Date
WO2024131871A1 true WO2024131871A1 (zh) 2024-06-27

Family

ID=86476114

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/140475 WO2024131871A1 (zh) 2022-12-23 2023-12-21 减振机构及电动震动工具

Country Status (2)

Country Link
CN (1) CN115912771A (zh)
WO (1) WO2024131871A1 (zh)

Also Published As

Publication number Publication date
CN115912771A (zh) 2023-04-04

Similar Documents

Publication Publication Date Title
US6859968B2 (en) Nodal mounted system for driving a power appliance
JP5683470B2 (ja) ボンディング装置、超音波トランスデューサおよびボンディング方法
JP5379011B2 (ja) パーソナルケア電気器具における使用のための振動相殺二次共振器
JP2632811B2 (ja) 振動駆動モータ
US20080028547A1 (en) Nodal mounted system for driving a power appliance
US5051647A (en) Ultrasonic motor
JPS61224881A (ja) 振動波モ−タ
JPS61154487A (ja) リニア振動波モ−タ
WO2024131871A1 (zh) 减振机构及电动震动工具
CN206652700U (zh) 振动驰张筛
CN109926312B (zh) 配活配重块的偏心块及振动器、振动筛
CN219139695U (zh) 多维度减振机构及电动震动工具
JPH07143770A (ja) 超音波モータ
JPS6130972A (ja) 超音波モ−タ装置
CN219139719U (zh) 减振智能电动震动工具
JPS63262068A (ja) 振動波モ−ター
JPS58155180A (ja) 同期振動衝撃ハンマ
JPS62174450A (ja) 振動鏝
JP3118252B2 (ja) 超音波振動装置及びその方法並びにこれらを用いた駆動装置及びその方法
JP2007331073A (ja) 電動工具
WO2018018440A1 (zh) 洁面仪震动组件
CN111186205B (zh) 电雕头和电雕制版设备
JPS61262091A (ja) 振動波モ−タ
KR100483764B1 (ko) 선형 진동장치 및 이 선형 진동장치가 적용된 막분리 장치
JP2975065B2 (ja) 超音波モータ