CN219139695U - Multi-dimensional vibration reduction mechanism and electric vibration tool - Google Patents
Multi-dimensional vibration reduction mechanism and electric vibration tool Download PDFInfo
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- CN219139695U CN219139695U CN202223529718.9U CN202223529718U CN219139695U CN 219139695 U CN219139695 U CN 219139695U CN 202223529718 U CN202223529718 U CN 202223529718U CN 219139695 U CN219139695 U CN 219139695U
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Abstract
Description
技术领域technical field
本实用新型涉及电动震动工具技术领域,更具体地,涉及一种多维度减振机构及电动震动工具。The utility model relates to the technical field of electric vibration tools, in particular to a multi-dimensional damping mechanism and an electric vibration tool.
背景技术Background technique
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。若将电动牙刷或电动按摩工具打开后放在桌上,由于振动强,电动牙刷或电动按摩工具会在桌上无规则的移动。或者手握电动牙刷或电动按摩工具,手上会有强烈的麻感,使用效果不佳。Electric vibration tools currently on the market, such as electric toothbrushes, electric massage tools, etc., mainly absorb the vibration energy of the motor through soft rubber pads to achieve vibration reduction. However, for high-frequency vibrations, the vibration reduction effect of this vibration reduction method is not good. too obvious. If the electric toothbrush or the electric massage tool is opened and placed on the table, the electric toothbrush or the electric massage tool will move irregularly on the table due to the strong vibration. Or if you hold an electric toothbrush or an electric massage tool in your hand, you will feel a strong numbness in your hand, and the use effect is not good.
实用新型内容Utility model content
本实用新型的目的在于克服现有技术存在的上述缺陷,提供一种多维度减振机构及电动震动工具,采用多维度减振机构,在多个维度上分别与马达振动产生相位差,形成力学抵消,从而达到减振或消振的效果。The purpose of this utility model is to overcome the above-mentioned defects in the prior art, and provide a multi-dimensional vibration damping mechanism and an electric vibration tool. The multi-dimensional vibration damping mechanism is used to generate phase differences with the vibration of the motor in multiple dimensions, forming a mechanical Offset, so as to achieve the effect of vibration reduction or vibration elimination.
为实现上述目的,本实用新型的技术方案如下:In order to achieve the above object, the technical scheme of the utility model is as follows:
一种多维度减振机构,用于电动震动工具,包括固定支架、旋转摆动减振单元和左右摆动减振单元,A multi-dimensional vibration damping mechanism for electric vibration tools, including a fixed bracket, a rotary swing vibration damping unit and a left and right swing vibration damping unit,
所述旋转摆动减振单元包括第一弹性组件和旋转摆动振子,所述第一弹性组件安装于所述固定支架上,所述旋转摆动振子与所述第一弹性组件相连接;The rotary vibration damping unit includes a first elastic component and a rotary swing vibrator, the first elastic component is installed on the fixed bracket, and the rotary swing vibrator is connected to the first elastic component;
所述左右摆动减振单元包括第二弹性组件和左右摆动振子,所述第二弹性组件安装于所述固定支架上,所述左右摆动振子与所述第二弹性组件相连接;The left and right swing damping unit includes a second elastic component and a left and right swing vibrator, the second elastic component is installed on the fixed bracket, and the left and right swing vibrator is connected to the second elastic component;
当所述电动震动工具的马达振动时,所述多维度减振组件受所述马达激励产生振动,所述旋转摆动振子因自身质量惯性产生切向旋转摆动振动,所述第一弹性组件提供所述旋转摆动振子恢复原位的第一回复力,所述第一回复力使所述旋转摆动振子在旋转摆动方向上产生与所述马达反向的振动,所述左右摆动振子因自身质量惯性产生左右摆动振动,所述第二弹性组件提供所述左右摆动振子恢复原位的第二回复力,所述第二回复力使所述左右摆动振子在左右摆动方向上产生与所述马达反向的振动。When the motor of the electric vibrating tool vibrates, the multi-dimensional vibration damping component is excited by the motor to vibrate, the rotary swing vibrator produces tangential rotary swing vibration due to its own mass inertia, and the first elastic component provides the The first restoring force for the rotating and oscillating vibrator to return to its original position, the first restoring force causes the rotating and oscillating vibrator to vibrate in the direction opposite to that of the motor, and the left and right oscillating vibrator is generated due to its own mass inertia Left and right swing vibration, the second elastic component provides the second restoring force for the left and right swing vibrator to return to its original position, and the second restoring force causes the left and right swing vibrator to generate a force opposite to the motor in the left and right swing direction vibration.
本实用新型还公开了一种电动牙刷,包括上述的多维度减振机构。The utility model also discloses an electric toothbrush, which comprises the above-mentioned multi-dimensional damping mechanism.
实施本实用新型实施例,将具有如下有益效果:Implement the utility model embodiment, will have following beneficial effect:
本实用新型实施例通过设置旋转摆动减振单元和左右摆动减振单元,分别对马达引起的切向旋转摆动和左右摆动进行减振或消振;通过分别设置摇摆式的旋转摆动减振单元和左右摆动减振单元,当马达振动时,旋转摆动减振单元和左右摆动减振单元分别受到激励,旋转摆动振子因自身质量惯性产生切向旋转摆动振动,第一弹性组件提供旋转摆动振子恢复原位的第一回复力,第一回复力使旋转摆动振子在切向旋转摆动方向上产生与马达反向的振动,左右摆动振子因自身质量惯性产生左右摆动振动,第二弹性组件提供左右摆动振子恢复原位的第二回复力,第二回复力使左右摆动振子在左右摆动方向上产生与马达反向的振动,从而分别在切向旋转摆动和左右摆动方向上形成力学抵消,达到多维度减振或消振的目的。In the embodiment of the utility model, by arranging a rotary swing vibration damping unit and a left and right swing vibration damping unit, the tangential rotary swing and the left and right swing caused by the motor are respectively damped or eliminated; The left and right swing vibration damping unit, when the motor vibrates, the rotary swing vibration damping unit and the left and right swing vibration damping unit are respectively excited, the rotary swing vibrator generates tangential rotary swing vibration due to its own mass inertia, and the first elastic component provides the rotary swing vibrator to restore the original The first restoring force of the position, the first restoring force makes the rotating swing vibrator generate vibration opposite to that of the motor in the tangential rotating swing direction, the left and right swinging vibrator generates left and right swinging vibration due to its own mass inertia, and the second elastic component provides the left and right swinging vibrator The second restoring force to restore the original position, the second restoring force causes the left and right swing vibrator to vibrate in the opposite direction to the motor in the left and right swing direction, so as to form a mechanical offset in the tangential rotation swing and left and right swing directions respectively, achieving multi-dimensional reduction vibration or damping purposes.
附图说明Description of drawings
为了更清楚地说明本实用新型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实用新型的一些实施例,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。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.
其中:in:
图1是本实用新型一具体实施例的多维度减振机构的分解结构示意图。Fig. 1 is a schematic diagram of an exploded structure of a multi-dimensional damping mechanism of a specific embodiment of the present invention.
图2是本实用新型另一具体实施例的旋转摆动减振单元的分解结构示意图。Fig. 2 is a schematic diagram of an exploded structure of a rotary vibration damping unit according to another specific embodiment of the present invention.
图3是本实用新型另一具体实施例的旋转摆动减振单元的分解结构示意图。Fig. 3 is a schematic diagram of an exploded structure of a rotary vibration damping unit according to another specific embodiment of the present invention.
图4是本实用新型一具体实施例的马达组件和多维度减振机构的连接结构示意图。Fig. 4 is a schematic diagram of the connection structure of the motor assembly and the multi-dimensional damping mechanism of a specific embodiment of the present invention.
图5是本实用新型一具体实施例的电动牙刷的剖面结构示意图。Fig. 5 is a schematic cross-sectional structure diagram of an electric toothbrush according to a specific embodiment of the present invention.
图6是本实用新型一具体实施例的多维度减振机构在手柄内部的分布示意图。Fig. 6 is a schematic diagram of the distribution of the multi-dimensional damping mechanism inside the handle according to a specific embodiment of the present invention.
图7是本实用新型另一具体实施例的多维度减振机构在手柄内部的分布示意图。Fig. 7 is a schematic diagram of the distribution of the multi-dimensional damping mechanism inside the handle according to another specific embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图,对本实用新型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实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,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,都属于本实用新型保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.
参考图1,本实用新型公开了一种多维度减振机构10,用于电动震动工具,包括固定支架11、旋转摆动减振单元12和左右摆动减振单元13,旋转摆动减振单元12包括第一弹性组件122和旋转摆动振子121,第一弹性组件122安装于固定支架11上,旋转摆动振子121与第一弹性组件122相连接;左右摆动减振单元13包括第二弹性组件132和左右摆动振子131,第二弹性组件132安装于固定支架11上,左右摆动振子131与第二弹性组件132相连接;当电动震动工具的马达41振动时,多维度减振组件受马达41激励产生振动,旋转摆动振子121因自身质量惯性产生切向旋转摆动振动,第一弹性组件122提供旋转摆动振子121恢复原位的第一回复力,第一回复力使旋转摆动振子121在旋转摆动方向上产生与马达41反向的振动,左右摆动振子131因自身质量惯性产生左右摆动振动,第二弹性组件132提供左右摆动振子131恢复原位的第二回复力,第二回复力使左右摆动振子131在左右摆动方向上产生与马达41反向的振动。旋转摆动减振单元12和左右摆动减振单元13分别从切向旋转和左右摆动方向上形成力学抵消,达到多维度减振或消振的目的。固定支架11用于安装旋转摆动减振单元12和左右摆动减振单元13,使得减振机构成为一整体,便于在手柄20外组装减振机构。旋转摆动振子121和左右摆动振子131的振动频率分别与马达41振动频率相当。Referring to Fig. 1, the utility model discloses a multi-dimensional
参考图5,在一具体实施例中,电动震动工具为电动牙刷,包括上述多维度减震机构,电动牙刷还包括手柄20、牙刷头30、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的端部伸出与牙刷头30相连接,马达41带动输出轴42偏心转动,输出轴42偏心转动带动牙刷头30左右摆动。上述多维度减振机构10也容纳于容纳腔内,多维度减振机构10与马达组件40同轴设置,多维度减振机构10安装于容纳腔后,旋转摆动振子121关于马达41的输出轴42(或马达的摆动中心线)对称,旋转摆动振子121以输出轴42为旋转中心轴,做切向旋转往复运动,以与马达41产生的切向旋转振动相抵消或部分抵消。左右摆动振子131位于马达的摆动中心线上,左右摆动振子131沿左右摆动方向(即垂直于输出轴42的方向)做往复运动,以与马达41产生的左右摆动振动相抵消或部分抵消。Referring to Fig. 5, in a specific embodiment, the electric vibration tool is an electric toothbrush, including the above-mentioned multi-dimensional shock absorbing mechanism, and the electric toothbrush also includes a
在另一实施例中,电动震动工具为电动按摩工具,包括上述多维度减震机构,电动按摩工具还包括手柄20、按摩头、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的端部伸出与按摩头相连接,马达41带动输出轴42偏心转动,输出轴42偏心转动带动按摩头左右摆动。In another embodiment, the electric vibration tool is an electric massage tool, including the above-mentioned multi-dimensional shock absorbing mechanism, the electric massage tool also includes a
参考图1~图3,在一具体实施例中,第一弹性组件122包括第一悬臂端1221,第一悬臂端1221与旋转摆动振子121相连接,第一悬臂端1221的数量至少为1个,每个第一悬臂端1221上至少设置一旋转摆动振子121,第一悬臂端1221分布关于输出轴42对称,旋转摆动振子121分布关于输出轴42对称。1 to 3, in a specific embodiment, the first
参考图1~图3,在一具体实施例中,第二弹性组件132包括第二悬臂端1321,第二悬臂端1321与左右摆动振子131相连接,第二悬臂端1321的数量至少为1个,每个第二悬臂端1321上至少设置一左右摆动振子131。1 to 3, in a specific embodiment, the second
参考图1和图2,在一具体实施例中,第一弹性组件122包括第一悬臂梁1224和第二悬臂梁1227,第一悬臂梁1224具有相对设置的第一端1225和第二端1226,第二悬臂梁1227具有相对设置的第三端1228和第四端1229,第一端1225和第三端1228相连接形成第一悬臂端1221,第二端1226和第四端1229分别与固定支架11相连接,第一悬臂端1221设置旋转摆动振子121。振动时,旋转摆动振子121沿切向旋转摆动振动,第一悬臂梁1224和第二悬臂梁1227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1224和第二悬臂梁1227分别提供旋转摆动振子121回复原位的回复力,第一悬臂梁1224和第二悬臂梁1227关于输出轴42对称,第一悬臂端1221位于输出轴42的轴线上。1 and 2, in a specific embodiment, the first
参考图1,进一步的,在一具体实施例中,第二端1226和第四端1229分别与固定支架11的中间位置相连接,第一悬臂梁1224和第二悬臂梁1227分别呈直线形。Referring to FIG. 1 , further, in a specific embodiment, the
在本实施例中,较优的,第一弹性组件122还包括与第一悬臂梁1224相连接的第一支撑梁123和与第二悬臂梁1227相连接的第二支撑梁124,第一支撑梁123设置于第一悬臂梁1224的远离第二悬臂梁1227的一侧,第二支撑梁124设置于第二悬臂梁1227的远离第一悬臂梁1224的一侧,振动时,第一支撑梁123和第二支撑梁124能分别提高第一悬臂梁1224和第二悬臂梁1227的阻尼和回复力。In this embodiment, preferably, the first
参考图2,在另一具体实施例中,第二端1226和第四端1229分别与固定支架11的相对远离的两端相连接,第一悬臂梁1224和第二悬臂梁1227分别呈弧形,弧形能增强第一悬臂梁1224和第二悬臂梁1227的弹性。Referring to FIG. 2 , in another specific embodiment, the
参考图1和图2,在上述两实施例中,可以在第一悬臂端1221设置位于输出轴42的轴线上的一个旋转摆动振子121,也可以设置两个以上旋转摆动振子121,当设置多个旋转摆动振子121时,旋转摆动振子121分布关于输出轴42对称,较优的,第一悬臂端1221的关于输出轴42对称的两侧分别设置一旋转摆动振子121,两旋转摆动振子121的连线方向与从第一悬臂梁1224到第二悬臂梁1227的方向相同,如此设置,可以提高从第一悬臂梁1224到第二悬臂梁1227的方向的弹力。Referring to Fig. 1 and Fig. 2, in the above two embodiments, one rotary oscillating
第一悬臂梁1224和第二悬臂梁1227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1224和第二悬臂梁1227的材料分别为塑胶材料,和固定支架11一体成型。The materials of the
参考图3,在另一具体实施例中,第一弹性组件122包括对称弹性片,对称弹性片相对马达的摆动中心线(或输出轴静止时的轴线)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1222,固定端1222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第一悬臂端1221,两第一悬臂端1221分别与一旋转摆动振子121相连接。Referring to FIG. 3 , in another specific embodiment, the first
参考图3,进一步的,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1222,固定端1222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第一悬臂端1221,两第一悬臂端1221分别与一旋转摆动振子121相连接。振动时,两旋转摆动振子121沿切向旋转摆动振动,两第一悬臂端1221首先发生弯曲,此时两固定端1222之间的梁1223起阻尼作用,随后两固定端1222之间的梁1223被带动也发生扭转弯曲,当两第一悬臂端1221达到最大位移时,两第一悬臂端1221提供使旋转摆动振子121回复原位的回复力,该回复力使旋转摆动振子121在切向方向上产生与马达41反向的振动。两第一悬臂端1221均交汇于两固定端1222之间的梁1223的中点。十字弹性片的厚度远小于两固定端1222之间的梁1223的宽度或两第一悬臂端的宽度,提高十字弹性片沿厚度方向的弹力。Referring to Fig. 3, further, the symmetrical elastic piece is a cross elastic piece, the opposite ends of the cross elastic piece are fixed
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。In other embodiments, the symmetrical elastic piece may also include a reinforcing rib structure or a reinforcing hollow structure.
较优的,固定支架11上设有用于卡接固定端1222的卡接槽111,便于组装。Preferably, the fixing
较优的,对称弹性片/十字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/十字弹性片的杨氏模量高于2000MPa。Preferably, the symmetrical elastic sheet/cross elastic sheet is a metal sheet or a synthetic rigid material (such as engineering plastics, etc.), and preferably, the Young's modulus of the symmetrical elastic sheet/cross elastic sheet is higher than 2000 MPa.
参考图1,在一具体实施例中,第二弹性组件132包括第三悬臂梁1322,第三悬臂梁1322的一端与固定支架11相连接,第三悬臂梁1322的另一端为第二悬臂端1321,第三悬臂梁1322呈圆钩状。第二悬臂端1321连接左右摆动振子131。第三悬臂梁1322呈圆钩状,一方面能够提供更大的回复力和阻尼作用,另一方面,相比直线型,呈圆钩状可以在有限空间内提供第三悬臂梁1322更长的悬臂端,以能提供足够的弹力。Referring to FIG. 1 , in a specific embodiment, the second
在上述各实施例中,旋转摆动振子121和左右摆动振子131均为金属配重块。In the above-mentioned embodiments, both the rotating
参考图4,在一具体实施例中,多维度减震机构与马达组件40直接刚性相连接,多维度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。为了增强多维度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,以实现螺栓连接。在本实施例中,多维度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摆动直接带动多维度减振机构10的旋转摆动振子121和左右摆动振子131摆动,旋转摆动振子121和左右摆动振子131摆动分别在切向旋转方向和左右摆动方向上产生与马达41摇摆相反的相位差,形成力学抵消,从而达到多维度减振或消振的效果。Referring to Fig. 4, in a specific embodiment, the multi-dimensional damping mechanism is directly rigidly connected with the
参考图6和图7,在另一具体实施例中,多维度减震机构与马达组件40间接刚性连接,电动震动工具还包括主机支架70,马达组件40、多维度减振机构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再将振动传递至多维度减震机构。多维度减振机构10可以设置在主机支架70的任何位置,多维度减振机构10优选设置在马达41摇摆时产生最强振感的位置。Referring to Fig. 6 and Fig. 7, in another specific embodiment, the multi-dimensional shock absorbing mechanism is indirectly rigidly connected with the
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,即可以将第一弹性组件122、旋转摆动振子121、第二弹性组件132和左右摆动振子131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。In another specific embodiment, the fixed
以上所述实施例仅表达了本实用新型的几种实施方式,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,在不脱离本实用新型构思的前提下,还可以做出若干变形和改进,这些都属于本实用新型的保护范围。因此,本实用新型专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.
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