WO2020224086A1 - 头戴式耳机 - Google Patents

头戴式耳机 Download PDF

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Publication number
WO2020224086A1
WO2020224086A1 PCT/CN2019/101348 CN2019101348W WO2020224086A1 WO 2020224086 A1 WO2020224086 A1 WO 2020224086A1 CN 2019101348 W CN2019101348 W CN 2019101348W WO 2020224086 A1 WO2020224086 A1 WO 2020224086A1
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WO
WIPO (PCT)
Prior art keywords
connecting shaft
horn
hole
base
limiting
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Application number
PCT/CN2019/101348
Other languages
English (en)
French (fr)
Inventor
戴湘青
吴海全
唐忠辉
彭久高
师瑞文
Original Assignee
深圳市冠旭电子股份有限公司
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.)
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Application filed by 深圳市冠旭电子股份有限公司 filed Critical 深圳市冠旭电子股份有限公司
Publication of WO2020224086A1 publication Critical patent/WO2020224086A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones

Definitions

  • the utility model belongs to the field of earphones, in particular to a headphone.
  • the angle adjustment between the headphone head and the headband of the existing headphone can be achieved, but this adjustment is mostly an adjustment between a limited angle, and it is difficult to adjust a smaller angle, such as an adjustment of 0.1 degree. Thereby affecting the fit of wearing.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a headphone, which aims to improve the fit between the headphone head and the human body.
  • the utility model is realized as follows:
  • a headphone includes a headband and two headphone heads respectively connected to two ends of the headband, and the headphone head includes:
  • a support base connected to the headband
  • a connecting shaft extends back and forth, the support seat is fixed at the rear end of the connecting shaft, and the horn seat is sleeved on the connecting shaft and can move or rotate back and forth relative to the connecting shaft;
  • a fixing part connected to the connecting shaft and used to restrict the forward movement of the horn base
  • the supporting base includes a supporting body and a first limiting member connected to the front surface of the supporting body and extending forward, and the horn base is provided with a second limiting member at a corresponding position of the first limiting member, The first limiting member cooperates with the second limiting member to restrict the horn base from rotating axially along the connecting shaft.
  • first limiting member is a limiting post extending back and forth
  • second limiting member is a through hole that accommodates the insertion of the first limiting member
  • the limiting post is inserted into the through hole.
  • the horn base is restricted from rotating axially along the connecting shaft.
  • the size of the through hole in the left-right direction is larger than the longest distance from the left surface to the right surface of the limiting column.
  • the limiting column is a cylindrical shape extending back and forth, the through hole is rectangular, and when the limiting column is inserted into the through hole, between the limiting column and the hole wall of the through hole Leave a gap.
  • the fixing member is screwed on the connecting shaft.
  • the connecting shaft is provided with a screw hole backward on its front surface
  • the fixing member includes a screw that is screwed to the screw hole and restricts the forward movement of the speaker base.
  • the fixing member further includes a matching block, the front surface of the matching block is provided with a through hole penetrating back and forth, the matching block abuts the horn base, and the matching block and the horn
  • the projection area of the abutment surface of the seat on the horn seat is larger than the projection area of the screw, and the screw passes through the through hole and is screwed on the screw hole.
  • the elastic member is ring-shaped, and the radial cross-sectional shape of the elastic member is rectangular.
  • the ratio of the distance from the outer surface of the elastic member to the axis of the connecting shaft to the distance from the outer surface of the horn base to the axis is [1/3, 1/2].
  • the headset provided by the utility model can improve the fit of the headset with the human body, thereby improving the wearing comfort and improving the sound insulation effect.
  • Figure 1 is a schematic diagram of the headphone head in the embodiment of the present invention.
  • Figure 2 is a schematic diagram of the disassembly of the earphone head in the embodiment of the present invention
  • Fig. 3 is another schematic diagram of disassembly of the earphone head in the embodiment of the present invention.
  • Label Name Label Name 10 Support base 40 Fastener 11 The first limit piece 41 Screw 12 Support body 42 Mating block 20 Horn seat 50 Elastic twenty one The second limit piece 60 Earmuffs 30 Connecting shaft To To To To
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the present invention, “multiple” means two or more than two, unless otherwise specifically defined.
  • the side located in the positive direction of the X-axis is defined as the front, and the side located in the negative direction of the X-axis is defined as the rear;
  • the side in the positive direction of the Y-axis is defined as the left, and the side in the negative direction of the Y-axis is defined as the right;
  • the side in the positive direction of the Z-axis is defined as up, and the side in the negative direction of the Z-axis is defined as down.
  • this embodiment provides a headphone, including a headband and two headphone heads respectively connected to two ends of the headphone.
  • the earphone head includes a support base 10, a speaker base 20, a connecting shaft 30, a fixing member 40 and an elastic member 50.
  • the drawing takes one of the earphone heads as an example, and defines the direction of the speaker base 20 relative to the support base 10 as the front.
  • the headphone head shown in FIGS. 1 and 2 further includes an earmuff 60 that is enclosed with the speaker base 20 to accommodate the sound emitting device.
  • the support base 10 is used to connect to the headband.
  • the horn base 20 is used to fix the sound emitting device.
  • the connecting shaft 30 extends forward and backward, the support base 10 is fixed at the rear end of the connecting shaft 30, and the horn base 20 is sleeved on the connecting shaft 30 and can move or rotate back and forth relative to the connecting shaft 30.
  • the fixing member 40 is connected to the connecting shaft 30 and used to limit the forward movement of the horn base 20.
  • the elastic member 50 is sleeved on the connecting shaft 30.
  • the front surface of the elastic member 50 abuts the horn base 20 and the rear surface thereof abuts the support base 10.
  • the elastic member 50 is elastically deformed when the horn base 20 receives backward pressure. After disappearing, the horn base 20 can be driven to move forward to abut the fixing member 40.
  • the horn base 20 moves or rotates back and forth between the support base 10 and the fixing member 40 along the connecting shaft 30, and the elastic member 50 is sandwiched between the support base 10 and the horn base 20 to provide elastic recovery that drives the horn base 20 to move forward force.
  • the elastic member 50 has elasticity.
  • the upper part of the horn seat 20 receives backward pressure
  • the upper part of the elastic member 50 is compressed and deformed
  • the upper part of the horn seat 20 rotates backward
  • the horn seat 20 is reset after the pressure is released.
  • the lower part of the horn seat 20 receives backward pressure
  • the lower part of the elastic member 50 is compressed and deformed, and the lower part of the horn seat 20 rotates backward, and the horn seat 20 is reset after the pressure contact.
  • the whole or middle part of the horn seat 20 receives backward pressure
  • the entire elastic member 50 is compressed and deformed
  • the horn seat 20 moves backward as a whole, and the horn seat 20 is reset after the pressure is released.
  • the headset of this embodiment can improve the fit of the headset to the human body, thereby improving the wearing comfort and improving the sound insulation effect.
  • the supporting base 10 includes a supporting body 12 and a first limiting member 11 connected to the right surface of the supporting body 12 and extending to the right.
  • the horn base 20 is provided with a second limiting member at a corresponding position of the first limiting member 11.
  • the first limiting member 11 and the second limiting member 21 cooperate to limit the rotation of the horn base 20 along the connecting shaft 30.
  • the outline of the outer surface of the horn base 20 is generally not circular.
  • the axial rotation of the horn base 20 along the connecting shaft 30 affects the fit of the earmuffs and the human ear.
  • the axial rotation of the horn base 20 may affect the normal use of its fixed sound emitting device, so the axial rotation of the horn base 20 is restricted.
  • the limitation is achieved by the arrangement of the first limiting member 11 and the second limiting member 21.
  • the first limiting member 11 is a limiting post extending back and forth
  • the second limiting member 21 is a through hole for accommodating the insertion of the first limiting member 11, and the limiting post is inserted into the through hole to limit the speaker base 20 along the connecting axis. 30 rotations.
  • the limit post extends back and forth and is inserted into the through hole located in front of the limit post. With the depth of the limit post inserted into the through hole, the horn base 20 moves back and forth, that is, the limit post and the through hole do not restrict the front and back movement of the horn base 20.
  • the size of the through hole is greater than the longest distance from the upper surface to the lower surface of the limiting column at least in the up and down direction to provide a space for the horn base 20 to rotate back and forth.
  • the size of the through hole in the left and right direction is greater than the longest distance from the left surface to the right surface of the limiting column, so as to provide a avoidance space for the speaker base 20 to rotate left and right.
  • the limiting column is a cylindrical shape extending back and forth, and the through hole is rectangular.
  • the through hole is rectangular.
  • the cylindrical limit post is easy to process, and the rectangular through hole is easy to process.
  • the distance that the limit post can move in the four directions up, down, front and back is ensured, even when the horn base 20 is rotated back and forth and left and right.
  • the fixing member 40 is screwed on the connecting shaft 30. This design realizes the detachability of the fixing member 40 and facilitates the installation of the speaker base 20 and the elastic member 50.
  • the connection structure is simple and can realize the limitation of the speaker base 20.
  • the connecting shaft 30 is provided with a screw hole backward on its front surface
  • the fixing member 40 includes a screw 41 that is screwed into the screw hole and restricts the horn base 20 from moving forward.
  • a screw hole is opened on the front surface of the connecting shaft 30, that is, a screw hole is opened in the axial direction of the connecting shaft 30, which is convenient for screwing operation.
  • the nut of the screw 41 abuts against the horn base 20 to limit the position of the horn base 20.
  • the screw hole may also be located at other positions of the connecting shaft 30, which is not uniquely limited here.
  • the fixing member 40 further includes a matching block 42, and the cooperation of the matching block 42, the screw 41 and the connecting shaft 30 realizes the limitation of the horn base 20.
  • the mating block 42 is provided with a through hole that penetrates back and forth on its front surface.
  • the mating block 42 abuts the horn base 20, and the abutment surface of the mating block 42 and the horn base 20 has a projection area ratio of The projection area of the screw 41 is large, and the screw 41 passes through the through hole and is screwed on the screw hole. 3, the projection size of the contact surface of the mating block 42 and the horn base 20 is larger than that of the nut, thereby reducing the local internal stress of the horn base 20.
  • the mating block 42 can be partially structurally strengthened on the surface in contact with the nut. Thereby improving the local structural strength. Therefore, the addition of the mating block 42 is beneficial to improve the stability of the connection.
  • the elastic member 50 is ring-shaped, and the radial cross-sectional shape of the elastic member 50 is rectangular.
  • the rectangular cross section can increase the contact area of the elastic member 50 with the horn base 20 and the support base 10, thereby increasing the resistance of the horn base 20 to rotate along the axial direction of the connecting shaft 30.
  • the ratio of the distance from the outer surface of the elastic member 50 to the axis of the connecting shaft 30 to the distance from the outer surface of the horn base 20 to the axis is [1/3, 2/3].
  • the design mainly considers the restoring moment of the elastic member 50. Appropriately increasing the radial size of the elastic member 50 is beneficial to increase the restoring moment. In other words, the actual force can be reduced under the same deformation, thereby increasing the life of the elastic member 50.
  • the radial dimension of the elastic member 50 is restricted by the shape design of the support base 10 and the horn base 20, so it is further preferably [1/3, 1/2].
  • the elastic member 50 is a circular ring, and the horn base 20 is approximately elliptical.
  • the ratio of the distance from the outer surface of the elastic member 50 to the axis of the connecting shaft 30 to the distance from the outer surface of the horn base 20 to the axis Close to 1/3, in the right direction, the ratio of the distance from the outer surface of the elastic member 50 to the axis of the connecting shaft 30 to the distance from the outer surface of the horn base 20 to the axis is close to 1/2.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)

Abstract

本申请适用于耳机领域，提供了一种头戴式耳机，包括头带和两个耳机头，所述耳机头包括：支撑座，连接于所述头带；喇叭座，用于固定发声器件；连接轴，所述连接轴前后延伸，所述支撑座固定在所述连接轴的后端，所述喇叭座套接在所述连接轴上并相对所述连接轴前后移动或转动；固定件，连接于所述连接轴并限制所述喇叭座向前移动；弹性件，套设在所述连接轴上，所述弹性件前表面抵接所述喇叭座而其后表面抵接所述支撑座，所述弹性件在所述喇叭座受到向后的压力下发生弹性形变而在所述压力消失后能使所述喇叭座向前移动以使所述喇叭座抵接所述固定件。本申请提供的头戴式耳机能提高其与人体的贴合度，从而提高佩戴的舒适性并提高隔音效果。

Description

头戴式耳机 技术领域
本实用新型属于耳机领域，尤其涉及一种头戴式耳机。
 背景技术
现有的头戴式耳机的耳机头和头带之间能实现角度的调节，不过这种调节多是有限个角度之间的调整，对于更小角度调节则难以做到，比如调节0.1度，从而影响佩戴的贴合度。
 技术问题
本实用新型的目的在于克服上述现有技术的不足，提供了一种头戴式耳机，其旨在提高耳机头与人体的贴合度。
 技术解决方案
本实用新型是这样实现的：
一种头戴式耳机，包括头带和分别连接于所述头带两端的两个耳机头，所述耳机头包括：
支撑座，连接于所述头带；
喇叭座，用于固定发声器件；
连接轴，所述连接轴前后延伸，所述支撑座固定在所述连接轴的后端，所述喇叭座套接在所述连接轴上并能够相对所述连接轴前后移动或转动；
固定件，连接于所述连接轴并用于限制所述喇叭座向前移动；
弹性件，套设在所述连接轴上，所述弹性件前表面抵接所述喇叭座而其后表面抵接所述支撑座，所述弹性件在所述喇叭座受到向后的压力下发生弹性形变而在所述压力消失后能够驱使所述喇叭座向前移动以使所述喇叭座抵接所述固定件。
进一步的，所述支撑座包括支撑本体和连接于支撑本体前表面并向前延伸的第一限位件，所述喇叭座在所述第一限位件相应位置设置有第二限位件，所述第一限位件与所述第二限位件配合而限制所述喇叭座沿所述连接轴轴向旋转。
进一步的，所述第一限位件为前后延伸的限位柱，所述第二限位件为容纳所述第一限位件插入的通孔，所述限位柱插入所述通孔而限制所述喇叭座沿所述连接轴轴向旋转。
进一步的，所述通孔在左右方向的尺寸大于所述限位柱在其左表面到右表面的最长距离。
进一步的，所述限位柱为前后延伸的圆柱状，所述通孔为矩形，且所述限位柱插入所述通孔时，所述限位柱和所述通孔个孔壁之间留有间隙。
进一步的，所述固定件螺接在所述连接轴上。
进一步的，所述连接轴在其前表面向后开设有螺孔，所述固定件包括螺丝，所述螺丝螺接于所述螺孔并限制所述喇叭座向前移动。
进一步的，所述固定件还包括配合块，所述配合块在其前表面向后开设有前后贯通的通孔，所述配合块抵接所述喇叭座，且所述配合块与所述喇叭座的抵接面在所述喇叭座的投影面积比所述螺丝的投影面积大，所述螺丝穿过所述通孔螺接在所述螺孔上。
进一步的，所述弹性件呈环状，所述弹性件径向截面形状为矩形。
进一步的，所述弹性件的外表面到所述连接轴的轴心距离占所述喇叭座外表面到轴心距离的比例为[1/3,1/2]。
 有益效果
本实用新型提供的头戴式耳机能提高头戴式耳机与人体的贴合度，从而提高佩戴的舒适性并提高隔音效果。
 附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例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。
图1是本实用新型实施例中耳机头的示意图；
图2是本实用新型实施例中耳机头的拆解示意图；
图3是本实用新型实施例中耳机头的另一拆解示意图。
附图标号说明：
标号 名称 标号 名称
10 支撑座 40 固定件
11 第一限位件 41 螺丝
12 支撑本体 42 配合块
20 喇叭座 50 弹性件
21 第二限位件 60 耳罩
30 连接轴    
本发明的实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本实用新型，并不用于限定本实用新型。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
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或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实用新型的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
还需要说明的是，本实用新型实施例中，按照图1中所建立的XYZ直角坐标系定义：位于X轴正方向的一侧定义为前方，位于X轴负方向的一侧定义为后方；位于Y轴正方向的一侧定义为左方，位于Y轴负方向的一侧定义为右方；位于Z轴正方向的一侧定义为上方，位于Z轴负方向的一侧定义为下方。
还需要说明的是，本实用新型实施例中的左、右、上和下等方位用语，仅是互为相对概念或是以产品的正常使用状态为参考的，而不应该认为是具有限制性的。
请参照图1至图3，本实施例提供一种头戴式耳机，包括头带和分别连接于头戴两端的两个耳机头。其中，耳机头包括支撑座10，喇叭座20、连接轴30、固定件40和弹性件50。附图以其中一个耳机头为例，并定义喇叭座20相对于支撑座10的方向为前方。图1和图2所示的耳机头还包括与喇叭座20围合以容纳发声器件的耳罩60。
支撑座10用于连接于头带。喇叭座20用于固定发声器件。
连接轴30前后延伸设置，支撑座10固定在连接轴30的后端，喇叭座20套接在连接轴30上并能够相对连接轴30前后移动或转动。
固定件40连接于连接轴30并用于限制喇叭座20向前移动。
弹性件50套设在连接轴30上，弹性件50前表面抵接喇叭座20而其后表面抵接支撑座10，弹性件50在喇叭座20受到向后的压力下发生弹性形变而在压力消失后能驱使喇叭座20向前移动以抵接固定件40。
喇叭座20沿连接轴30在支撑座10和固定件40之间前后移动或转动，弹性件50夹设在支撑座10和喇叭座20之间，以提供驱使喇叭座20向前移动的弹性回复力。弹性件50具有弹性，当喇叭座20的上部受到向后的压力，弹性件50的上部压缩变形，喇叭座20的上部向后转动，而在压力解除后喇叭座20复位。同理，当喇叭座20下部受到向后的压力，弹性件50的下部压缩变形，喇叭座20的下部向后转动，而在压力接触后喇叭座20复位。当喇叭座20整体或中部受到向后的压力，弹性件50整体受到压缩变形，喇叭座20整体向后移动，而在压力解除后喇叭座20复位。
当头戴式耳机套入耳朵两侧，两个耳机头能够自动微调对应的喇叭座20的角度，以更贴合耳朵两侧。因此，本实施例的头戴式耳机能提高头戴式耳机与人体的贴合度，从而提高佩戴的舒适性并提高隔音效果。
请参照图3，支撑座10包括支撑本体12和连接于支撑本体12右表面并向右延伸的第一限位件11，喇叭座20在第一限位件11相应位置设置有第二限位件21，第一限位件11与第二限位件21配合而限制喇叭座20沿连接轴30旋转。考虑到人体耳朵的形状，喇叭座20外表面轮廓一般不是圆形，喇叭座20沿连接轴30轴向旋转，则影响耳套与人体耳朵的贴合度。此外，喇叭座20的轴向旋转可能影响其固定的发声器件的正常使用，因此对喇叭座20的轴向旋转进行限制。本实施例通过第一限位件11和第二限位件21的设置实现该限制。
具体的，第一限位件11为前后延伸的限位柱，第二限位件21为容纳第一限位件11插入的通孔，限位柱插入通孔而限制喇叭座20沿连接轴30旋转。限位柱前后延伸并插入位于限位柱前方的通孔，随限位柱插入通孔的深度，喇叭座20前后移动，即限位柱和通孔不限制喇叭座20的前后移动。本图示实施例中，通孔有两个并分别位于连接轴30的左右两侧，在其它实施例中，通孔可以是其它数量或位于连接轴30的其它位置。
本领域人员可以理解，通孔的尺寸至少在上下方向上大于限位柱上表面到下表面的最长距离以提供喇叭座20前后转动的避让空间。
考虑到耳廓高于面部，头戴式耳机套在头上时，耳机头的左端与头部贴合较右端紧，因此，有必要增加前后方向的微调以提高佩戴的舒适度。对应的，通孔在左右方向的尺寸大于限位柱在其左表面到右表面的最长距离，从而为喇叭座20左右转动提供避让空间。
图示实施例中，限位柱为前后延伸的圆柱状，通孔为矩形，限位柱插入通孔时，限位柱与通孔各孔壁之间均留有间隙。圆柱形的限位柱便于加工，矩形的通孔便于加工的同时，确保限位柱在上下前后四个方向所能移动的距离，即便于对喇叭座20前后旋转和左右旋转幅度进行控制。
请参照图3，固定件40螺接在连接轴30上。该设计实现固定件40的可拆卸，便于喇叭座20和弹性件50的安装。连接结构简单且能实现对喇叭座20的限位。
具体的，连接轴30在其前表面向后开设有螺孔，固定件40包括螺丝41，螺丝41螺接于螺孔并限制喇叭座20向前移动。在连接轴30的前表面开设螺孔，即在连接轴30的轴向开设螺孔，该设置便于螺接操作。螺丝41的螺帽抵接喇叭座20从而实现对喇叭座20的限位。在其它实施例中，螺孔也可以位于连接轴30其它位置，在此不唯一限定。
在另一实施例中，固定件40还包括配合块42，配合块42、螺丝41和连接轴30的配合实现对喇叭座20的限定。具体说来，配合块42在其前表面向后开设有前后贯通的通孔，配合块42抵接喇叭座20，且配合块42与喇叭座20的抵接面在喇叭座20的投影面积比螺丝41的投影面积大，螺丝41穿过通孔螺接在螺孔上。请参照图3，配合块42与喇叭座20的接触面投影尺寸比螺帽大，从而降低喇叭座20的局部内应力，此外，配合块42能够在与螺帽接触的面进行局部结构加强，从而提高该局部的结构强度。由此，配合块42的加设有利于提高连接的稳固性。
请参照图2或图3，弹性件50呈环状，弹性件50径向截面形状为矩形。矩形截面相比圆形截面能够提高弹性件50与喇叭座20和支撑座10的接触面积，从而提高喇叭座20沿连接轴30轴向转动的阻力。
本实施例中，弹性件50的外表面到连接轴30的轴心距离占喇叭座20外表面到轴心距离的比例为[1/3,2/3]。该设计主要考虑弹性件50的恢复力矩，适当增大弹性件50的径向尺寸有利于提高恢复力矩，换个角度说，在同样形变下能够降低实际受力，从而提高弹性件50的寿命。而弹性件50的径向尺寸受制于支撑座10和喇叭座20的外形设计，因此进一步优选为[1/3,1/2]。图示实施例中，弹性件50为圆环，喇叭座20为近似椭圆形，在上下方向上，弹性件50外表面到连接轴30轴心距离与喇叭座20外表面到轴心距离之比接近1/3，在右方向上，弹性件50外表面到连接轴30轴心距离与喇叭座20外表面到轴心距离之比接近1/2。
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本实用新型的保护范围之内。

Claims (10)

  1. 一种头戴式耳机，包括头带和分别连接于所述头带两端的两个耳机头，其特征在于，所述耳机头包括：
    支撑座，连接于所述头带；
    喇叭座，用于固定发声器件；
    连接轴，所述连接轴前后延伸，所述支撑座固定在所述连接轴的后端，所述喇叭座套接在所述连接轴上并能够相对所述连接轴前后移动或转动；
    固定件，连接于所述连接轴并用于限制所述喇叭座向前移动；
    弹性件，套设在所述连接轴上，所述弹性件前表面抵接所述喇叭座而其后表面抵接所述支撑座，所述弹性件在所述喇叭座受到向后的压力下发生弹性形变而在所述压力消失后能够驱使所述喇叭座向前移动以使所述喇叭座抵接所述固定件。
  2. 如权利要求1所述的头戴式耳机，其特征在于，所述支撑座包括支撑本体和连接于支撑本体前表面并向前延伸的第一限位件，所述喇叭座在所述第一限位件相应位置设置有第二限位件，所述第一限位件与所述第二限位件配合而限制所述喇叭座沿所述连接轴轴向旋转。
  3. 如权利要求2所述的头戴式耳机，其特征在于，所述第一限位件为前后延伸的限位柱，所述第二限位件为容纳所述第一限位件插入的通孔，所述限位柱插入所述通孔而限制所述喇叭座沿所述连接轴轴向旋转。
  4. 如权利要求3所述的头戴式耳机，其特征在于，所述通孔在左右方向的尺寸大于所述限位柱在其左表面到右表面的最长距离。
  5. 如权利要求4所述的头戴式耳机，其特征在于，所述限位柱为前后延伸的圆柱状，所述通孔为矩形，且所述限位柱插入所述通孔时，所述限位柱和所述通孔个孔壁之间留有间隙。
  6. 如权利要求1所述的头戴式耳机，其特征在于，所述固定件螺接在所述连接轴上。
  7. 如权利要求6所述的头戴式耳机，其特征在于，所述连接轴在其前表面向后开设有螺孔，所述固定件包括螺丝，所述螺丝螺接于所述螺孔并限制所述喇叭座向前移动。
  8. 如权利要求7所述的头戴式耳机，其特征在于，所述固定件还包括配合块，所述配合块在其前表面向后开设有前后贯通的通孔，所述配合块抵接所述喇叭座，且所述配合块与所述喇叭座的抵接面在所述喇叭座的投影面积比所述螺丝的投影面积大，所述螺丝穿过所述通孔螺接在所述螺孔上。
  9. 如权利要求1至8任一所述的头戴式耳机，其特征在于，所述弹性件呈环状，所述弹性件径向截面形状为矩形。
  10. 如权利要求1至8任一所述的头戴式耳机，其特征在于，所述弹性件的外表面到所述连接轴的轴心距离占所述喇叭座外表面到轴心距离的比例为[1/3,1/2]。
PCT/CN2019/101348 2019-05-09 2019-08-19 头戴式耳机 WO2020224086A1 (zh)

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