WO2020133363A1

WO2020133363A1 - Loudspeaker

Info

Publication number: WO2020133363A1
Application number: PCT/CN2018/125366
Authority: WO
Inventors: 肖波
Original assignee: 瑞声声学科技(深圳)有限公司
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-07-02

Abstract

The present invention provides a loudspeaker, comprising a loudspeaker unit (10) and a contact terminal (20). The contact terminal (20) is provided on a first surface (101) of the loudspeaker unit (10) facing away from a sound producing hole; the contact terminal (20) comprises a bottom wall (1); one side of the bottom wall (1) is bent to form a side wall (2) which is provided with a through groove (21), and the other side of the bottom wall (1) is bent to form a moment arm (3); the moment arm (3) is provided opposite to the side wall (2); an end part of the moment arm (3) extends into the side wall (2) and extends into the through groove (21); the end part of the moment arm (3) abuts against the inner wall of one side of the through groove (21) distant from the bottom wall (1); the bottom wall (1) is provided with a support wall (4); the support wall (4) corresponds to the moment arm (3); one end of the support arm (4) extends into the moment arm (3), and when the moment arm (3) is squeezed toward the bottom wall (1), the moment arm (3) is able to abut against the end part of the support arm (4), and in this case, the support arm (4) has a spring force that moves the moment arm (3) away from the bottom wall (1). According to the loudspeaker provided in the present invention, the moment arm of the contact terminal can quickly reach a required force value in a short time, and the fatigue stress of the moment arm can be reduced, thereby avoiding a fast failure of the contact terminal in use, and prolonging the service life of the loudspeaker.

Description

A speaker

Technical field

The invention relates to the technical field of electroacoustic transducing devices, in particular to a speaker.

Background technique

The existing speaker includes a speaker unit and a contact terminal. The contact terminal is provided on the speaker unit for contacting with the connection terminal of the terminal to form a conduction, and the structure of the existing contact terminal is usually a single-arm structure. In the process, when the single arm is compressed, it cannot quickly reach the required force value. At the same time, after the arm is compressed multiple times, fatigue stress will occur, resulting in the failure of the contact terminal and reducing the service life of the speaker.

technical problem

In the prior art, the contact terminal of the speaker has a single-arm structure. In use, the required force value cannot be quickly reached and the fatigue force of the arm after being compressed many times leads to the failure of the contact terminal and the technical problem of reducing the service life of the speaker.

Technical solution

The technical solution of the present invention is as follows: A speaker includes a speaker unit and a contact terminal, the contact terminal is provided on a first surface of the speaker unit facing away from the sound hole, the contact terminal includes a bottom wall, and a bottom wall One side is bent to form a side wall, the side wall is provided with a through slot, the other side of the bottom wall is bent to form a force arm, the force arm is opposite to the side wall, the end of the force arm extends toward the side wall and extends into the through slot Inner, the end of the force arm is in contact with the inner wall of the channel away from the bottom wall. The bottom wall is provided with a support arm. The support arm is corresponding to the force arm. One end of the support arm extends toward the force arm. When the direction is squeezed, the force arm can resist the end of the support arm. At this time, the support arm has an elastic force that moves the force arm away from the bottom wall.

Further, the junction of the force arm and the bottom wall is set as a first arc.

Further, the end of the arm extending toward the side wall and near the through slot is bent to form a second arc, and the end of the second arc near the through slot extends toward the through slot and extends into the through slot, and the second arc Project away from the bottom wall.

Further, a portion of the force arm extending into the through-groove extends out of the through-groove, and a second surface of the portion away from the bottom wall is in contact with a groove wall of the through-groove facing away from the bottom wall.

Further, the end of the support arm extending toward the force arm is bent to form a third arc, and the third arc can contact the force arm.

Further, the through groove extends from the side wall to the bottom wall.

Further, the end of the support arm corresponds to the middle of the force arm.

Beneficial effect

A speaker provided by the present invention is provided with a support arm on the bottom wall of the contact terminal provided on the speaker unit, the support arm is located below the force arm and corresponds to the force arm, and one end of the support arm extends in the direction of the force arm. Both the support arm and the force arm have elastic force after being squeezed toward the bottom wall, so that the contact terminal has two arms. In use, when the force arm is squeezed toward the bottom wall, the end of the support arm can be When the arm is against, the support arm supports the arm, and the restoring force of the support arm pushes the arm, so that the arm can quickly reach the required force value in a short time, and the support arm can also reduce the fatigue stress of the arm and avoid The contact terminals fail too quickly during use, extending the life of the speaker.

BRIEF DESCRIPTION

1 is a perspective structural view of a speaker according to an embodiment of the invention;

2 is a perspective structural view of a contact terminal in a speaker according to an embodiment of the invention;

3 is a schematic side view of the contact terminal in the speaker of the embodiment of the present invention.

Embodiments of the invention

The present invention will be further described below with reference to the drawings and embodiments.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "Bottom", "Inner", "Outer", etc. indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, only to facilitate the description of this application and simplify the description, not to indicate or imply The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present application.

In addition, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

1-3, which is a preferred embodiment of a speaker provided by the present invention, the speaker includes a speaker unit 10 and a contact terminal 20, the contact terminal 20 is provided on the speaker unit 10 facing away from the sound hole The first surface 101, the contact terminal 20 includes a bottom wall 1, one side of the bottom wall 1 is bent to form a side wall 2, the side wall 2 is provided with a through slot 21, and the other side of the bottom wall 1 is bent to form a force arm 3. The force arm 3 is disposed opposite to the side wall 2, the end of the force arm 3 extends toward the side wall 2 and extends into the through slot 21, the end of the force arm 3 and the inner wall of the side of the through slot 21 away from the bottom wall 1 In contrast, the bottom wall 1 is provided with a support arm 4 that is corresponding to the force arm 3. One end of the support arm 4 extends toward the force arm 3. When the force arm 3 is squeezed toward the bottom wall 1, the force arm 3 can It is against the end of the support arm 4. At this time, the support arm 4 has an elastic force that moves the force arm 3 away from the bottom wall 1.

In the speaker provided by the present invention, the support arm 4 is provided on the bottom wall 1 of the contact terminal 20, and the support arm 4 and the force arm 3 have an elastic force after being squeezed toward the bottom wall 1, so that the contact terminal 20 has two arms In use, when the force arm 3 is squeezed toward the bottom wall 1, the end of the support arm 4 can contact the force arm 3, the support arm 4 supports the force arm 3, and the return force of the support arm 4 pushes The power arm 3 enables the power arm 3 to quickly reach the required force value in a short time, and at the same time the support arm 4 can also reduce the fatigue stress of the power arm 3. When the speaker unit 10 is assembled on the terminal device, the power arm 3 The contact force is formed by quickly reaching the required force value between the support arm 4 and the connection terminal of the terminal, and the auxiliary elastic force provided by the support arm 4 to the force arm 3 can be reduced when the force arm 3 is subjected to less fatigue stress The contact resistance between the small force arm 3 and the connection terminal ensures good conduction, avoids the contact terminal 20 from failing too fast in use, and extends the service life of the speaker.

Further, the junction of the force arm 3 and the bottom wall 1 is set as a first arc 31. Setting the first arc 31 can reduce the fatigue stress at the connection between the arm 3 and the bottom wall 1 when the arm 3 is repeatedly squeezed, and increase the elastic force of the arm 3 returning to the original position when being squeezed toward the bottom wall 1.

Further, the end of the force arm 3 extending toward the side wall 2 and close to the through slot 21 is bent to form a second arc 32, and the end of the second arc 32 near the through slot 21 extends toward the through slot 21 and extends into the through slot 21, and the second arc 32 protrudes away from the bottom wall 1. By providing the second arc 32, the distance between the force arm 3 and the bottom wall 1 can be increased to increase the stroke of the force arm 3 being squeezed.

Wherein, the portion of the force arm 3 extending into the through groove 21 extends out of the through groove 21, and the second surface 33 of the portion away from the bottom wall 1 is in contact with the groove wall of the through groove 21 facing away from the bottom wall 1 . In this way, the force arm 3 can be prevented from being separated from the through slot 21 during use, and the stability of cooperation between the force arm 3 and the through slot 21 can be improved.

Further, the end of the support arm 4 extending toward the force arm 3 is bent to form a third arc 41, and the third arc 41 can contact the force arm 3. A third arc 41 is provided at the end of the support arm 4 that can contact the force arm 3, in addition to increasing the contact area between the end of the support arm 4 and the force arm 3, the strength of the end of the support arm 4 can be strengthened.

Further, the through slot 21 extends from the side wall 2 to the bottom wall 1. In this way, when the arm 3 is squeezed in the direction of the bottom wall 1, the end of the arm 3 protruding into the through groove 21 can be avoided.

Further, the end of the support arm 4 corresponds to the middle of the force arm 3, that is, the end of the support arm 4 is located between the first arc 31 and the second arc 32, so that the support arm 4 is opposed to the force arm 3 The supporting force reaches the most suitable force value.

The above are only the embodiments of the present invention. It should be pointed out that those of ordinary skill in the art can make improvements without departing from the inventive concept of the present invention, but these belong to the present invention. Scope of protection.

Claims

A speaker includes a speaker unit and a contact terminal, the contact terminal is provided on a first surface of the speaker unit facing away from the sound hole, the contact terminal includes a bottom wall, and one side of the bottom wall is bent A side wall is formed, the side wall is provided with a through slot, the other side of the bottom wall is bent to form a force arm, the force arm is disposed opposite to the side wall, and the end of the force arm faces the side The wall extends into the through slot, and the end of the force arm is in contact with the inner wall of the through slot away from the bottom wall. The bottom wall is provided with a support arm, The support arm is provided corresponding to the force arm, and one end of the support arm extends toward the force arm. When the force arm is squeezed toward the bottom wall, the force arm may be When the ends are against each other, the support arm has an elastic force that moves the force arm away from the bottom wall.
The loudspeaker according to claim 1, wherein the junction of the force arm and the bottom wall is set as a first arc.
The speaker according to claim 1, wherein an end of the force arm extending toward the side wall and close to the through slot is bent to form a second arc, and the second arc is close to the One end of the through slot extends toward the through slot and extends into the through slot, and the second arc protrudes away from the bottom wall.
The loudspeaker according to claim 3, wherein a part of the force arm extending into the through slot extends out of the through slot, and a second surface of the part away from the bottom wall communicates with the through The groove walls facing away from the bottom wall abut.
The loudspeaker according to claim 1, characterized in that: the end of the support arm extending toward the force arm is bent to form a third arc, and the third arc can contact the force arm.
The speaker according to claim 1, wherein the through groove extends from the side wall to the bottom wall.
The speaker according to claim 1, wherein the end of the support arm corresponds to the middle of the force arm.