CN214959983U

CN214959983U - A mounting structure for circuit board in audio amplifier

Info

Publication number: CN214959983U
Application number: CN202120724656.3U
Authority: CN
Inventors: 刘瑛; 黄华军; 张正虎; 余凡; 黄敏双; 陈冬平; 袁为揆; 朱法景; 李天�; 张镇军; 庄志红; 袁雄; 王海波; 丁辉; 彭明涛; 张轩
Original assignee: Ganzhou Dehuida Technology Co ltd
Current assignee: Ganzhou Dehuida Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-11-30
Anticipated expiration: 2031-04-09

Abstract

The utility model belongs to the technical field of the audio amplifier, specifically provide a mounting structure for circuit board in audio amplifier, including the circuit board, and be used for setting up the support of circuit board, a side of support is provided with supporting part and location portion, the supporting part sets up in the edge of a side of support, location portion sets up both ends around a side of support, location portion include with support integrated into one piece's reference column, and the circumference equipartition is in many strengthening ribs of reference column outer peripheral face, the reference column sets up with the intersection smooth transition of support, the locating hole has been seted up to the circuit board, the locating hole cover is located the reference column and is cooperateed with many strengthening ribs. Circumference an organic whole sets up in many the peripheral strengthening ribs of reference column, not only can effectively promote the intensity of reference column, but also can reduce the fit clearance between reference column and the circuit board, makes the circuit board installation more reliable and stable then, effectively avoids vibrating the emergence of the reference column fracture scheduling problem that causes because of the circuit board.

Description

A mounting structure for circuit board in audio amplifier

Technical Field

The utility model relates to a audio amplifier technical field especially relates to a mounting structure for circuit board in audio amplifier.

Background

In the correlation technique, the circuit board in the audio amplifier goods is because the mounting structure design is not reasonable enough, and the circuit board after the installation receives audio amplifier sound producing unit's strong impact for produce the vibration of multidimension degree direction between circuit board and the reference column, and be used for receiving the restriction of factors such as structure space with circuit board matched with reference column, the external diameter can not be designed too big again, consequently causes the reference column fracture very easily, makes circuit board installation reliability greatly reduced then.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mounting structure for circuit board in audio amplifier, this mounting structure not only can promote the intensity of reference column, but also can reduce the fit clearance between reference column and the circuit board, makes the circuit board installation more reliable and stable then, effectively avoids vibrating the emergence of the reference column fracture scheduling problem that causes because of the circuit board.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mounting structure for circuit board in loudspeaker box, includes the circuit board to and be used for erectting the support of circuit board, a side of support is provided with supporting part and location portion, the supporting part set up in the edge of a support side, location portion set up in both ends around a support side, location portion include with support integrated into one piece's reference column, and the circumference equipartition in many strengthening ribs of reference column outer peripheral face, the reference column with the intersection smooth transition setting of support, the locating hole has been seted up to the circuit board, the locating hole cover is located the reference column and with a plurality of the strengthening rib cooperatees.

Wherein the height of the reinforcing ribs is less than or equal to the thickness of the circuit board.

The outer edge of the top of the reinforcing rib is provided with a chamfer which is convenient for the installation of the circuit board.

The circle centers of circles where the peripheral surfaces of the reinforcing ribs are located on the axis of the positioning column.

The radiuses of circles where the outer peripheral surfaces of the reinforcing ribs are located are equal.

The peripheral surfaces of the reinforcing ribs are in clearance fit or interference fit with the positioning holes.

The bearing part comprises a step arranged along the edge of one side face of the support, and a mounting hole used for fastening the circuit board is formed in the step face of the step.

The middle part of the support is provided with a yielding hole, the edge of the yielding hole extends inwards to form a positioning seat, and the positioning seat is fastened with the circuit board through a screw.

The beneficial effects of the utility model reside in that: the utility model discloses a mounting structure for circuit board in audio amplifier, including the circuit board to and be used for setting up the support of circuit board, a side of support is provided with supporting part and location portion, and the supporting part sets up in the edge of a side of support, and location portion sets up both ends around a side of support, and location portion includes the reference column with support integrated into one piece, and the circumference equipartition is in many strengthening ribs of reference column outer peripheral face, and the reference column sets up with the intersection smooth transition of support, and the locating hole has been seted up to the circuit board, and the locating hole cover is located the reference column and is cooperateed with many strengthening ribs. Circumference an organic whole sets up in many the peripheral strengthening ribs of reference column, not only can effectively promote the intensity of reference column, but also can reduce the fit clearance between reference column and the circuit board, makes the circuit board installation more reliable and stable then, effectively avoids vibrating the emergence of the reference column fracture scheduling problem that causes because of the circuit board.

Drawings

Fig. 1 is an exploded view of a mounting structure for a circuit board in a sound box according to the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure:

1. a circuit board; 11. positioning holes; 2. a support; 21. a hole of abdication; 211. positioning seats; 22. a step; 23. a positioning column; 231. reinforcing ribs; 232. and (6) chamfering.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 and fig. 2, the mounting structure in this embodiment is mainly applied to mounting the circuit board 1 in a sound box, as is well known, the sound box is in a playing process, in order to meet playing requirements of different sound qualities, a machine body generally generates large vibration, at this time, a higher reliability requirement is provided for mounting of parts in the machine body, especially, some sound boxes with small size and large power are limited by a design space, so that each positioning structure is relatively weak, if there is no one set of stable and reliable mounting structure, it is easy to generate collision between the circuit board 1 and the positioning column 23 under the action of strong impact force generated by sound, so that the positioning column 23 is fractured and tilted, and finally, the mounting structure fails, so that stability and reliability of a product are greatly reduced.

In this regard, as shown in fig. 1, the present embodiment provides a mounting structure for a circuit board 1 in a sound box, which is mainly composed of the circuit board 1, a bracket 2 for mounting the circuit board 1, and the like.

Specifically, in order to cooperate with the installation of each component in the whole machine, the bracket 2 in this embodiment is provided with the abdicating hole 21 at the middle position, that is, the bracket 2 is similarly arranged in a frame shape, in order to facilitate the processing and manufacturing, the bracket 2 is integrally formed by injection molding, and the formed bracket 2 is integrally provided with a bearing part and a positioning part at one side of the bracket 2.

The bearing part is mainly used for supporting the circuit board 1, preferably, the bearing part in the embodiment is circumferentially arranged at the edge of one side surface of the support 2, the cross section of the bearing part is arranged in a step 22 shape, when the circuit board 1 is installed, only the edge of the lower bottom surface of the circuit board 1 is attached to the horizontal plane of the step 22, and then the circuit board is positioned through the positioning part.

Further, as shown in fig. 1, in this embodiment, a positioning seat 211 extends inward from the edge of the receding hole 21, and the positioning seat 211 is fastened to the circuit board 1 by a screw, so that the positioned circuit board 1 can be stably fixed to the bracket 2.

Further specifically, the positioning portions in this embodiment are disposed at the front end and the rear end of the side of the support 2, which is matched with the circuit board 1, and the positioning portions and the frame body of the support 2 are integrally formed by injection molding, preferably, the positioning portions are configured as positioning pillars 23, so that when the circuit board 1 is installed, the positioning holes 11 penetrating through the circuit board 1 are matched with the corresponding positioning pillars 23, thereby positioning the circuit board 1.

Furthermore, in order to effectively overcome the collision between the inner wall of the positioning hole 11 and the positioning column 23 caused by the vibration of the sound box in the present embodiment, preferably, a plurality of reinforcing ribs 231 are uniformly distributed on the outer circumferential surface of the positioning column 23 in the circumferential direction, and the plurality of reinforcing ribs 231 are respectively arranged along the axial direction of the positioning column 23. Therefore, the arrangement of the reinforcing ribs 231 reduces the fit clearance between the positioning column 23 and the positioning hole 11 of the circuit board 1, and meanwhile, the structural strength of the positioning column 23 can be further improved.

As shown in fig. 2, the intersection of the plurality of reinforcing ribs 231 and the bracket 2 adopting the above structure design is in smooth transition connection, and the intersection can be set in a form of a rounded corner or a cambered surface, so that the shearing force at the root of the positioning column 23 can be reduced, and in addition, in order to ensure the concentricity between the plurality of reinforcing ribs 231 and the positioning column 23, the fit error between the plurality of positioning holes 11 is reduced, the circle centers of the circles where the outer peripheral surfaces of the plurality of reinforcing ribs 231 are located are all located on the axis of the positioning column 23, and the radiuses of the circles where the outer peripheral surfaces of the plurality of reinforcing ribs 231 are located are equal.

Referring to fig. 2, in this embodiment, in order to facilitate the installation of circuit board 1 and positioning column 23, preferably, the height of multiple reinforcing ribs 231 is smaller than the thickness of circuit board 1, and the outer edge of the top of multiple reinforcing ribs 231 is provided with a chamfer facilitating the installation of circuit board 1, when circuit board 1 is positioned, the part of accessible positioning column 23 higher than reinforcing ribs 231 is used for presetting the position of circuit board 1, then the guiding function of the chamfer is passed, interference fit between the outer peripheral face of multiple reinforcing ribs 231 and positioning hole 11 is realized, thereby when convenient positioning, the assembly gap between positioning column 23 and positioning hole 11 is effectively reduced, and then, the positioning column 23 is prevented from being fractured due to the vibration of circuit board 1.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A mounting structure for a circuit board in a sound box, characterized by comprising a circuit board (1), and a bracket (2) for erecting the circuit board (1), wherein a bearing part and a positioning part are arranged on one side surface of the bracket (2), the bearing part is arranged at the edge of one side surface of the bracket (2), the positioning parts are arranged at the front end and the rear end of one side surface of the bracket (2), the positioning part comprises a positioning column (23) which is integrally formed with the bracket (2), and a plurality of reinforcing ribs (231) which are uniformly distributed on the peripheral surface of the positioning column (23) in the circumferential direction, the junction of the positioning column (23) and the bracket (2) is arranged in a smooth transition way, the circuit board (1) is provided with a positioning hole (11), and the positioning hole (11) is sleeved on the positioning column (23) and matched with the reinforcing ribs (231).

2. A mounting structure for a circuit board in a sound box according to claim 1, wherein the height of the reinforcing rib (231) is less than or equal to the thickness of the circuit board (1).

3. A mounting structure for a circuit board in a sound box according to claim 1, wherein the top outer edge of the reinforcing rib (231) is provided with a chamfer (232) for facilitating mounting of the circuit board (1).

4. A mounting structure for a circuit board in a sound box according to claim 1, wherein the centers of circles of the outer peripheral surfaces of the plurality of reinforcing ribs (231) are located on the axis of the positioning column (23).

5. A mounting structure for a circuit board in a sound box according to claim 1, wherein the outer peripheral surfaces of said plurality of reinforcing ribs (231) are located on circles having the same radius.

6. A mounting structure for a circuit board in a sound box according to claim 1, wherein outer peripheral surfaces of a plurality of said reinforcing ribs (231) are in clearance fit or interference fit with said positioning holes (11).

7. The mounting structure for the circuit board in the loudspeaker box according to claim 1, wherein the bearing part comprises a step (22) arranged along the edge of one side surface of the bracket (2), and a mounting hole for fastening the circuit board (1) is opened on the step (22) surface of the step (22).

8. The mounting structure for the circuit board in the loudspeaker box according to claim 1, wherein the middle of the bracket (2) is provided with a yielding hole (21), the edge of the yielding hole (21) extends inwards to form a positioning seat (211), and the positioning seat (211) is fastened with the circuit board (1) through a screw.